diff options
Diffstat (limited to 'erts')
73 files changed, 3861 insertions, 964 deletions
diff --git a/erts/configure.in b/erts/configure.in index 4f94f0d156..ba80fdbbbe 100644 --- a/erts/configure.in +++ b/erts/configure.in @@ -1974,10 +1974,38 @@ AC_CHECK_FUNCS([getipnodebyname getipnodebyaddr gethostbyname2]) AC_CHECK_FUNCS([ieee_handler fpsetmask finite isnan isinf res_gethostbyname dlopen \ pread pwrite memmove strerror strerror_r strncasecmp \ - gethrtime localtime_r gmtime_r inet_pton posix_memalign \ + gethrtime localtime_r gmtime_r inet_pton \ mmap mremap memcpy mallopt sbrk _sbrk __sbrk brk _brk __brk \ flockfile fstat strlcpy strlcat setsid posix2time time2posix \ - setlocale nl_langinfo poll]) + setlocale nl_langinfo poll mlockall]) + + +case X$erl_xcomp_posix_memalign in + Xno) ;; + Xyes) AC_DEFINE(HAVE_POSIX_MEMALIGN,[1], + [Define to 1 if you have the `posix_memalign' function.]) ;; + *) + AC_CHECK_FUNC( + [posix_memalign], + [if test "$cross_compiling" != yes; then +AC_TRY_RUN([ +#include <stdlib.h> +int main(void) { + void *ptr = NULL; + int error; + size_t alignment = 0x40000, size = 0x20028; + if ((error = posix_memalign(&ptr, alignment, size)) != 0 || ptr == NULL) + return error; + return 0; +} +],AC_DEFINE(HAVE_POSIX_MEMALIGN,[1], + [Define to 1 if you have the `posix_memalign' function.]) +) + else + AC_DEFINE(HAVE_POSIX_MEMALIGN,[1], + [Define to 1 if you have the `posix_memalign' function.]) + fi]);; +esac dnl writev on OS X snow leopard is broken for files > 4GB case $host_os in diff --git a/erts/doc/src/erl.xml b/erts/doc/src/erl.xml index c16b45856d..528a2d95aa 100644 --- a/erts/doc/src/erl.xml +++ b/erts/doc/src/erl.xml @@ -524,7 +524,7 @@ <p>Calling <c>erlang:halt/1</c> with a string argument will still produce a crash dump.</p> </item> - <tag><c><![CDATA[+e Number]]></c></tag> + <tag><marker id="+e"><c><![CDATA[+e Number]]></c></marker></tag> <item> <p>Set max number of ETS tables.</p> </item> diff --git a/erts/doc/src/erlang.xml b/erts/doc/src/erlang.xml index 5ee40823bc..cbb25c2cf2 100644 --- a/erts/doc/src/erlang.xml +++ b/erts/doc/src/erlang.xml @@ -2467,7 +2467,7 @@ os_prompt% </pre> fails, a <c>nodedown</c> message is delivered.</p> <p>Nodes connected through hidden connections can be monitored as any other node.</p> - <p>Failure: <c>badarg</c>if the local node is not alive.</p> + <p>Failure: <c>badarg</c> if the local node is not alive.</p> </desc> </func> <func> @@ -4727,8 +4727,8 @@ true</pre> <name name="statistics" arity="1" clause_i="6"/> <fsummary>Information about the run-queue</fsummary> <desc> - <p>Returns the length of the run queue, that is, the number - of processes that are ready to run.</p> + <p>Returns the total length of the run queues, that is, the number + of processes that are ready to run on all available run queues.</p> </desc> </func> <func> @@ -5500,6 +5500,9 @@ ok <name name="system_info" arity="1" clause_i="49"/> <name name="system_info" arity="1" clause_i="50"/> <name name="system_info" arity="1" clause_i="51"/> + <name name="system_info" arity="1" clause_i="52"/> + <name name="system_info" arity="1" clause_i="53"/> + <name name="system_info" arity="1" clause_i="54"/> <fsummary>Information about the system</fsummary> <desc> <p>Returns various information about the current system @@ -5576,6 +5579,13 @@ ok information see the <seealso marker="erts:crash_dump">"How to interpret the Erlang crash dumps"</seealso> chapter in the ERTS User's Guide.</p> </item> + <tag><marker id="system_info_dist_buf_busy_limit"><c>dist_buf_busy_limit</c></marker></tag> + <item> + <p>Returns the value of the distribution buffer busy limit + in bytes. This limit can be set on startup by passing the + <seealso marker="erts:erl#+zdbbl">+zdbbl</seealso> command line + flag to <c>erl</c>.</p> + </item> <tag><c>dist_ctrl</c></tag> <item> <p>Returns a list of tuples @@ -5622,12 +5632,14 @@ ok The return value will always be <c>false</c> since the elib_malloc allocator has been removed.</p> </item> - <tag><marker id="system_info_dist_buf_busy_limit"><c>dist_buf_busy_limit</c></marker></tag> + <tag><c>ets_limit</c></tag> <item> - <p>Returns the value of the distribution buffer busy limit - in bytes. This limit can be set on startup by passing the - <seealso marker="erts:erl#+zdbbl">+zdbbl</seealso> command line - flag to <c>erl</c>.</p> + <p>Returns the maximum number of ETS tables allowed. This limit + can be increased on startup by passing the <seealso + marker="erts:erl#+e">+e</seealso> command line flag to + <c>erl</c> or by setting the environment variable + <c>ERL_MAX_ETS_TABLES</c> before starting the Erlang runtime + system.</p> </item> <tag><c>fullsweep_after</c></tag> <item> diff --git a/erts/doc/src/erts_alloc.xml b/erts/doc/src/erts_alloc.xml index 6ce2261430..a0ec89f398 100644 --- a/erts/doc/src/erts_alloc.xml +++ b/erts/doc/src/erts_alloc.xml @@ -271,6 +271,74 @@ memory segment cache is not reused if its size exceeds the requested size with more than relative max cache bad fit percent of the requested size. Default value is 20.</item> + <tag><marker id="MMsco"><c><![CDATA[+MMsco true|false]]></c></marker></tag> + <item> + Set <seealso marker="#MMscs">super carrier</seealso> only flag. This + flag defaults to <c>true</c>. When a super carrier is used and this + flag is <c>true</c>, <c>mseg_alloc</c> will only create carriers + in the super carrier. Note that the <c>alloc_util</c> framework may + create <c>sys_alloc</c> carriers, so if you want all carriers to + be created in the super carrier, you therefore want to disable use + of <c>sys_alloc</c> carriers by also passing + <seealso marker="#Musac"><c>+Musac false</c></seealso>. When the flag + is <c>false</c>, <c>mseg_alloc</c> will try to create carriers outside + of the super carrier when the super carrier is full. + <br/><br/> + <em>NOTE</em>: Setting this flag to <c>false</c> may not be supported + on all systems. This flag will in that case be ignored. + <br/><br/> + <em>NOTE</em>: The super carrier cannot be enabled nor + disabled on halfword heap systems. This flag will be + ignored on halfword heap systems. + </item> + <tag><marker id="MMscrfsd"><c><![CDATA[+MMscrfsd <amount>]]></c></marker></tag> + <item> + Set <seealso marker="#MMscs">super carrier</seealso> reserved + free segment descriptors. This parameter defaults to <c>65536</c>. + This parameter determines the amount of memory to reserve for + free segment descriptors used by the super carrier. If the system + runs out of reserved memory for free segment descriptors, other + memory will be used. This may however cause fragmentation issues, + so you want to ensure that this never happens. The maximum amount + of free segment descriptors used can be retrieved from the + <c>erts_mmap</c> tuple part of the result from calling + <seealso marker="erts:erlang#system_info_allocator_tuple">erlang:system_info({allocator, mseg_alloc})</seealso>. + </item> + <tag><marker id="MMscrpm"><c><![CDATA[+MMscrpm true|false]]></c></marker></tag> + <item> + Set <seealso marker="#MMscs">super carrier</seealso> reserve physical + memory flag. This flag defaults to <c>true</c>. When this flag is + <c>true</c>, physical memory will be reserved for the whole super + carrier at once when it is created. The reservation will after that + be left unchanged. When this flag is set to <c>false</c> only virtual + address space will be reserved for the super carrier upon creation. + The system will attempt to reserve physical memory upon carrier + creations in the super carrier, and attempt to unreserve physical + memory upon carrier destructions in the super carrier. + <br/><br/> + <em>NOTE</em>: What reservation of physical memory actually means + highly depends on the operating system, and how it is configured. For + example, different memory overcommit settings on Linux drastically + change the behaviour. Also note, setting this flag to <c>false</c> + may not be supported on all systems. This flag will in that case + be ignored. + <br/><br/> + <em>NOTE</em>: The super carrier cannot be enabled nor + disabled on halfword heap systems. This flag will be + ignored on halfword heap systems. + </item> + <tag><marker id="MMscs"><c><![CDATA[+MMscs <size in MB>]]></c></marker></tag> + <item> + Set super carrier size (in MB). The super carrier size defaults to + zero; i.e, the super carrier is by default disabled. The super + carrier is a large continuous area in the virtual address space. + The system will always try to create new carriers in the super + carrier. + <br/><br/> + <em>NOTE</em>: The super carrier cannot be enabled nor + disabled on halfword heap systems. This flag will be + ignored on halfword heap systems. + </item> <tag><marker id="MMmcs"><c><![CDATA[+MMmcs <amount>]]></c></marker></tag> <item> Max cached segments. The maximum number of memory segments @@ -490,6 +558,11 @@ placed in separate memory segments. When this limit has been reached, new carriers will be placed in memory retrieved from <c>sys_alloc</c>.</item> + <tag><marker id="Musac"><c><![CDATA[+Musac <bool>]]></c></marker></tag> + <item> + Allow <c>sys_alloc</c> carriers. By default <c>true</c>. If + set to <c>false</c>, <c>sys_alloc</c> carriers will never be + created by allocators using the <c>alloc_util</c> framework.</item> </taglist> <p>Instrumentation flags:</p> <taglist> @@ -545,6 +618,16 @@ </item> </taglist> </item> + <tag><marker id="Mlpm"><c>+Mlpm all|no</c></marker></tag> + <item>Lock physical memory. The default value is <c>no</c>, i.e., + no physical memory will be locked. If set to <c>all</c>, all + memory mappings made by the runtime system, will be locked into + physical memory. If set to <c>all</c>, the runtime system will fail + to start if this feature is not supported, the user has not got enough + privileges, or the user is not allowed to lock enough physical memory. + The runtime system will also fail with an out of memory condition + if the user limit on the amount of locked memory is reached. + </item> </taglist> <p>Only some default values have been presented here. diff --git a/erts/emulator/Makefile.in b/erts/emulator/Makefile.in index 9751982103..f442540f49 100644 --- a/erts/emulator/Makefile.in +++ b/erts/emulator/Makefile.in @@ -808,6 +808,7 @@ OS_OBJS += $(OBJDIR)/erl_poll.o \ endif OS_OBJS += $(OBJDIR)/erl_mseg.o \ + $(OBJDIR)/erl_mmap.o \ $(OBJDIR)/erl_$(ERLANG_OSTYPE)_sys_ddll.o \ $(OBJDIR)/erl_mtrace_sys_wrap.o \ $(OBJDIR)/erl_sys_common_misc.o diff --git a/erts/emulator/beam/beam_emu.c b/erts/emulator/beam/beam_emu.c index da36c4437e..78ab6fa30f 100644 --- a/erts/emulator/beam/beam_emu.c +++ b/erts/emulator/beam/beam_emu.c @@ -5654,7 +5654,6 @@ build_stacktrace(Process* c_p, Eterm exc) { return res; } - static BeamInstr* call_error_handler(Process* p, BeamInstr* fi, Eterm* reg, Eterm func) { @@ -5702,7 +5701,6 @@ call_error_handler(Process* p, BeamInstr* fi, Eterm* reg, Eterm func) return ep->addressv[erts_active_code_ix()]; } - static Export* apply_setup_error_handler(Process* p, Eterm module, Eterm function, Uint arity, Eterm* reg) { @@ -6208,7 +6206,6 @@ new_fun(Process* p, Eterm* reg, ErlFunEntry* fe, int num_free) return make_fun(funp); } - int catchlevel(Process *p) { diff --git a/erts/emulator/beam/beam_load.c b/erts/emulator/beam/beam_load.c index 4193eb4f3f..938fd8f2c9 100644 --- a/erts/emulator/beam/beam_load.c +++ b/erts/emulator/beam/beam_load.c @@ -535,7 +535,6 @@ static int must_swap_floats; Uint erts_total_code_size; /**********************************************************************/ - void init_load(void) { FloatDef f; @@ -1209,7 +1208,6 @@ verify_chunks(LoaderState* stp) return 0; } - static int load_atom_table(LoaderState* stp) { @@ -1255,7 +1253,6 @@ load_atom_table(LoaderState* stp) return 0; } - static int load_import_table(LoaderState* stp) { @@ -1308,7 +1305,6 @@ load_import_table(LoaderState* stp) return 0; } - static int read_export_table(LoaderState* stp) { @@ -1641,7 +1637,6 @@ read_line_table(LoaderState* stp) return 0; } - static int read_code_header(LoaderState* stp) { @@ -1711,7 +1706,6 @@ read_code_header(LoaderState* stp) return 0; } - #define VerifyTag(Stp, Actual, Expected) \ if (Actual != Expected) { \ LoadError2(Stp, "bad tag %d; expected %d", Actual, Expected); \ @@ -1730,7 +1724,6 @@ read_code_header(LoaderState* stp) #define TermWords(t) (((t) / (sizeof(BeamInstr)/sizeof(Eterm))) + !!((t) % (sizeof(BeamInstr)/sizeof(Eterm)))) - static int load_code(LoaderState* stp) { @@ -2512,7 +2505,6 @@ load_code(LoaderState* stp) return retval; } - #define succ(St, X, Y) ((X).type == (Y).type && (X).val + 1 == (Y).val) #define succ2(St, X, Y) ((X).type == (Y).type && (X).val + 2 == (Y).val) #define succ3(St, X, Y) ((X).type == (Y).type && (X).val + 3 == (Y).val) @@ -3958,7 +3950,6 @@ tuple_append_put(LoaderState* stp, GenOpArg Arity, GenOpArg Dst, } - /* * Freeze the code in memory, move the string table into place, * resolve all labels. @@ -4276,7 +4267,6 @@ freeze_code(LoaderState* stp) return 0; } - static void final_touch(LoaderState* stp) { @@ -4378,7 +4368,6 @@ final_touch(LoaderState* stp) } } - static int transform_engine(LoaderState* st) { @@ -4716,7 +4705,6 @@ transform_engine(LoaderState* st) return rval; } - static void short_file(int line, LoaderState* stp, unsigned needed) { @@ -4724,7 +4712,6 @@ short_file(int line, LoaderState* stp, unsigned needed) stp->file_name, needed); } - static void load_printf(int line, LoaderState* context, char *fmt,...) { @@ -5190,7 +5177,6 @@ native_addresses(Process* p, Eterm mod) return result; } - /* * Builds a list of all exported functions in the given module: * [{Name, Arity},...] @@ -5240,7 +5226,6 @@ exported_from_module(Process* p, /* Process whose heap to use. */ return result; } - /* * Returns a list of all attributes for the module. * @@ -5281,7 +5266,6 @@ attributes_for_module(Process* p, /* Process whose heap to use. */ return result; } - /* * Returns a list containing compilation information. * diff --git a/erts/emulator/beam/bif.tab b/erts/emulator/beam/bif.tab index dc8e9101de..6037c08dd8 100644 --- a/erts/emulator/beam/bif.tab +++ b/erts/emulator/beam/bif.tab @@ -572,6 +572,7 @@ bif erlang:float_to_binary/2 bif erlang:binary_to_float/1 bif io:printable_range/0 +bif os:unsetenv/1 # # Obsolete diff --git a/erts/emulator/beam/big.c b/erts/emulator/beam/big.c index 6b43c53985..2b27b111d8 100644 --- a/erts/emulator/beam/big.c +++ b/erts/emulator/beam/big.c @@ -1325,9 +1325,9 @@ static dsize_t I_lshift(ErtsDigit* x, dsize_t xl, Sint y, return 1; } else { - SWord ay = (y < 0) ? -y : y; - int bw = ay / D_EXP; - int sw = ay % D_EXP; + Uint ay = (y < 0) ? -y : y; + Uint bw = ay / D_EXP; + Uint sw = ay % D_EXP; dsize_t rl; ErtsDigit a1=0; ErtsDigit a0=0; @@ -1368,7 +1368,7 @@ static dsize_t I_lshift(ErtsDigit* x, dsize_t xl, Sint y, } if (sign) { - int zl = bw; + Uint zl = bw; ErtsDigit* z = x; while(zl--) { diff --git a/erts/emulator/beam/break.c b/erts/emulator/beam/break.c index ad9a89b642..b7e1092907 100644 --- a/erts/emulator/beam/break.c +++ b/erts/emulator/beam/break.c @@ -76,7 +76,10 @@ process_info(int to, void *to_arg) for (i = 0; i < max; i++) { Process *p = erts_pix2proc(i); if (p && p->i != ENULL) { - if (!ERTS_PROC_IS_EXITING(p)) + /* Do not include processes with no heap, + * they are most likely just created and has invalid data + */ + if (!ERTS_PROC_IS_EXITING(p) && p->heap != NULL) print_process_info(to, to_arg, p); } } @@ -754,7 +757,7 @@ erl_crash_dump_v(char *file, int line, char* fmt, va_list args) return; /* Can't create the crash dump, skip it */ time(&now); - erts_fdprintf(fd, "=erl_crash_dump:0.2\n%s", ctime(&now)); + erts_fdprintf(fd, "=erl_crash_dump:0.3\n%s", ctime(&now)); if (file != NULL) erts_fdprintf(fd, "The error occurred in file %s, line %d\n", file, line); diff --git a/erts/emulator/beam/dist.c b/erts/emulator/beam/dist.c index 44f4eb9d43..6ecf3f0722 100644 --- a/erts/emulator/beam/dist.c +++ b/erts/emulator/beam/dist.c @@ -353,7 +353,7 @@ static void doit_link_net_exits_sub(ErtsLink *sublnk, void *vlnecp) static void doit_link_net_exits(ErtsLink *lnk, void *vnecp) { LinkNetExitsContext lnec = {(NetExitsContext *) vnecp, lnk}; - ASSERT(lnk->type == LINK_PID) + ASSERT(lnk->type == LINK_PID); erts_sweep_links(ERTS_LINK_ROOT(lnk), &doit_link_net_exits_sub, (void *) &lnec); #ifdef DEBUG ERTS_LINK_ROOT(lnk) = NULL; @@ -369,7 +369,7 @@ static void doit_node_link_net_exits(ErtsLink *lnk, void *vnecp) Process *rp; ErtsLink *rlnk; Uint i,n; - ASSERT(lnk->type == LINK_NODE) + ASSERT(lnk->type == LINK_NODE); if (is_internal_pid(lnk->pid)) { ErtsProcLocks rp_locks = ERTS_PROC_LOCK_LINK; rp = erts_pid2proc(NULL, 0, lnk->pid, rp_locks); @@ -1509,12 +1509,12 @@ int erts_net_message(Port *prt, break; } rp = erts_pid2proc(NULL, 0, mon->pid, rp_locks); + + erts_destroy_monitor(mon); if (rp == NULL) { break; } - erts_destroy_monitor(mon); - mon = erts_remove_monitor(&ERTS_P_MONITORS(rp), ref); if (mon == NULL) { diff --git a/erts/emulator/beam/erl_alloc.c b/erts/emulator/beam/erl_alloc.c index 6dec383cee..b5ba9bb94a 100644 --- a/erts/emulator/beam/erl_alloc.c +++ b/erts/emulator/beam/erl_alloc.c @@ -100,6 +100,8 @@ static Uint install_debug_functions(void); #endif #endif +static int lock_all_physical_memory = 0; + ErtsAllocatorFunctions_t erts_allctrs[ERTS_ALC_A_MAX+1]; ErtsAllocatorInfo_t erts_allctrs_info[ERTS_ALC_A_MAX+1]; ErtsAllocatorThrSpec_t erts_allctr_thr_spec[ERTS_ALC_A_MAX+1]; @@ -618,6 +620,8 @@ erts_alloc_init(int *argc, char **argv, ErtsAllocInitOpts *eaiop) hdbg_init(); #endif + lock_all_physical_memory = 0; + ncpu = eaiop->ncpu; if (ncpu < 1) ncpu = 1; @@ -641,6 +645,20 @@ erts_alloc_init(int *argc, char **argv, ErtsAllocInitOpts *eaiop) if (argc && argv) handle_args(argc, argv, &init); + if (lock_all_physical_memory) { +#ifdef HAVE_MLOCKALL + errno = 0; + if (mlockall(MCL_CURRENT|MCL_FUTURE) != 0) { + int err = errno; + char *errstr = err ? strerror(err) : "unknown"; + erl_exit(-1, "Failed to lock physical memory: %s (%d)\n", + errstr, err); + } +#else + erl_exit(-1, "Failed to lock physical memory: Not supported\n"); +#endif + } + #ifndef ERTS_SMP init.sl_alloc.thr_spec = 0; init.std_alloc.thr_spec = 0; @@ -718,6 +736,7 @@ erts_alloc_init(int *argc, char **argv, ErtsAllocInitOpts *eaiop) init.mseg.nos = erts_no_schedulers; erts_mseg_init(&init.mseg); #endif + erts_alcu_init(&init.alloc_util); erts_afalc_init(); erts_bfalc_init(); @@ -1174,6 +1193,25 @@ get_kb_value(char *param_end, char** argv, int* ip) return ((Uint) tmp)*1024; } +static UWord +get_mb_value(char *param_end, char** argv, int* ip) +{ + SWord tmp; + UWord max = ((~((UWord) 0))/(1024*1024)) + 1; + char *rest; + char *param = argv[*ip]+1; + char *value = get_value(param_end, argv, ip); + errno = 0; + tmp = (SWord) ErtsStrToSint(value, &rest, 10); + if (errno != 0 || rest == value || tmp < 0 || max < ((UWord) tmp)) + bad_value(param, param_end, value); + if (max == (UWord) tmp) + return ~((UWord) 0); + else + return ((UWord) tmp)*1024*1024; +} + + #if 0 static Uint get_byte_value(char *param_end, char** argv, int* ip) @@ -1448,6 +1486,30 @@ handle_args(int *argc, char **argv, erts_alc_hndl_args_init_t *init) #endif get_amount_value(argv[i]+6, argv, &i); } + else if (has_prefix("scs", argv[i]+3)) { +#if HAVE_ERTS_MSEG + init->mseg.mmap.scs = +#endif + get_mb_value(argv[i]+6, argv, &i); + } + else if (has_prefix("sco", argv[i]+3)) { +#if HAVE_ERTS_MSEG + init->mseg.mmap.sco = +#endif + get_bool_value(argv[i]+6, argv, &i); + } + else if (has_prefix("scrpm", argv[i]+3)) { +#if HAVE_ERTS_MSEG + init->mseg.mmap.scrpm = +#endif + get_bool_value(argv[i]+8, argv, &i); + } + else if (has_prefix("scrfsd", argv[i]+3)) { +#if HAVE_ERTS_MSEG + init->mseg.mmap.scrfsd = +#endif + get_amount_value(argv[i]+9, argv, &i); + } else { bad_param(param, param+2); } @@ -1586,6 +1648,19 @@ handle_args(int *argc, char **argv, erts_alc_hndl_args_init_t *init) bad_param(param, param+2); } break; + case 'l': + if (has_prefix("pm", param+2)) { + arg = get_value(argv[i]+5, argv, &i); + if (strcmp("all", arg) == 0) + lock_all_physical_memory = 1; + else if (strcmp("no", arg) == 0) + lock_all_physical_memory = 0; + else + bad_value(param, param+4, arg); + break; + } + bad_param(param, param+2); + break; case 'u': if (has_prefix("ycs", argv[i]+3)) { init->alloc_util.ycs @@ -1595,6 +1670,10 @@ handle_args(int *argc, char **argv, erts_alc_hndl_args_init_t *init) init->alloc_util.mmc = get_amount_value(argv[i]+6, argv, &i); } + else if (has_prefix("sac", argv[i]+3)) { + init->alloc_util.sac + = get_bool_value(argv[i]+6, argv, &i); + } else { int a; int start = i; @@ -2668,6 +2747,7 @@ erts_allocator_info(int to, void *arg) #if HAVE_ERTS_MSEG { + struct erts_mmap_info_struct emis; #ifdef ERTS_SMP int max = (int) erts_no_schedulers; #else @@ -2678,6 +2758,8 @@ erts_allocator_info(int to, void *arg) erts_print(to, arg, "=allocator:mseg_alloc[%d]\n", i); erts_mseg_info(i, &to, arg, 0, NULL, NULL); } + erts_print(to, arg, "=allocator:mseg_alloc.erts_mmap\n"); + erts_mmap_info(&to, arg, NULL, NULL, &emis); } #endif @@ -2702,8 +2784,8 @@ erts_allocator_options(void *proc) #endif Uint sz, *szp, *hp, **hpp; Eterm res, features, settings; - Eterm atoms[ERTS_ALC_A_MAX-ERTS_ALC_A_MIN+6]; - Uint terms[ERTS_ALC_A_MAX-ERTS_ALC_A_MIN+6]; + Eterm atoms[ERTS_ALC_A_MAX-ERTS_ALC_A_MIN+7]; + Uint terms[ERTS_ALC_A_MAX-ERTS_ALC_A_MIN+7]; int a, length; SysAllocStat sas; Uint *endp = NULL; @@ -2801,6 +2883,11 @@ erts_allocator_options(void *proc) terms[length++] = erts_bld_2tup_list(hpp, szp, 3, o, v); } + atoms[length] = am_atom_put("lock_physical_memory", 20); + terms[length++] = (lock_all_physical_memory + ? am_atom_put("all", 3) + : am_atom_put("no", 2)); + settings = erts_bld_2tup_list(hpp, szp, length, atoms, terms); length = 0; @@ -2904,6 +2991,7 @@ reply_alloc_info(void *vair) Uint sz, *szp; ErlOffHeap *ohp = NULL; ErlHeapFragment *bp = NULL; + struct erts_mmap_info_struct emis; int i; Eterm (*info_func)(Allctr_t *, int, @@ -3016,15 +3104,23 @@ reply_alloc_info(void *vair) ? NIL : erts_mseg_info(0, NULL, NULL, hpp != NULL, hpp, szp)); - ainfo = erts_bld_tuple(hpp, szp, 3, - alloc_atom, - make_small(0), - ainfo); + ainfo = erts_bld_tuple3(hpp, szp, + alloc_atom, + make_small(0), + ainfo); + + ai_list = erts_bld_cons(hpp, szp, + ainfo, ai_list); + ainfo = (air->only_sz ? NIL : erts_mmap_info(NULL, NULL, hpp, szp, &emis)); + ainfo = erts_bld_tuple3(hpp, szp, + alloc_atom, + erts_bld_atom(hpp,szp,"erts_mmap"), + ainfo); #else - ainfo = erts_bld_tuple(hpp, szp, 2, alloc_atom, - am_false); + ainfo = erts_bld_tuple2(hpp, szp, alloc_atom, + am_false); #endif - break; + break; default: alloc_atom = erts_bld_atom(hpp, szp, (char *) ERTS_ALC_A2AD(ai)); diff --git a/erts/emulator/beam/erl_alloc_util.c b/erts/emulator/beam/erl_alloc_util.c index 825b68bb85..9dce7f6505 100644 --- a/erts/emulator/beam/erl_alloc_util.c +++ b/erts/emulator/beam/erl_alloc_util.c @@ -87,9 +87,6 @@ static int initialized = 0; #define SYS_ALLOC_CARRIER_CEILING(X) \ SYS_ALLOC_CARRIER_FLOOR((X) + INV_SYS_ALLOC_CARRIER_MASK) -#undef ASSERT -#define ASSERT ASSERT_EXPR - #if 0 /* Can be useful for debugging */ #define MBC_REALLOC_ALWAYS_MOVES @@ -101,6 +98,7 @@ static Uint sys_alloc_carrier_size; #if HAVE_ERTS_MSEG static Uint max_mseg_carriers; #endif +static int allow_sys_alloc_carriers; #define ONE_GIGA (1000000000) @@ -759,8 +757,9 @@ static ERTS_INLINE void * alcu_mseg_alloc(Allctr_t *allctr, Uint *size_p, Uint flags) { void *res; - - res = erts_mseg_alloc_opt(allctr->alloc_no, size_p, flags, &allctr->mseg_opt); + UWord size = (UWord) *size_p; + res = erts_mseg_alloc_opt(allctr->alloc_no, &size, flags, &allctr->mseg_opt); + *size_p = (Uint) size; INC_CC(allctr->calls.mseg_alloc); return res; } @@ -769,9 +768,10 @@ static ERTS_INLINE void * alcu_mseg_realloc(Allctr_t *allctr, void *seg, Uint old_size, Uint *new_size_p) { void *res; - - res = erts_mseg_realloc_opt(allctr->alloc_no, seg, old_size, new_size_p, + UWord new_size = (UWord) *new_size_p; + res = erts_mseg_realloc_opt(allctr->alloc_no, seg, (UWord) old_size, &new_size, ERTS_MSEG_FLG_NONE, &allctr->mseg_opt); + *new_size_p = (Uint) new_size; INC_CC(allctr->calls.mseg_realloc); return res; } @@ -779,7 +779,7 @@ alcu_mseg_realloc(Allctr_t *allctr, void *seg, Uint old_size, Uint *new_size_p) static ERTS_INLINE void alcu_mseg_dealloc(Allctr_t *allctr, void *seg, Uint size, Uint flags) { - erts_mseg_dealloc_opt(allctr->alloc_no, seg, size, flags, &allctr->mseg_opt); + erts_mseg_dealloc_opt(allctr->alloc_no, seg, (UWord) size, flags, &allctr->mseg_opt); INC_CC(allctr->calls.mseg_dealloc); } @@ -3226,10 +3226,12 @@ static void CHECK_1BLK_CARRIER(Allctr_t* A, int SBC, int MSEGED, Carrier_t* C, ASSERT(IS_MBC_BLK((B))); ASSERT(IS_MB_CARRIER((C))); ASSERT(FBLK_TO_MBC(B) == (C)); + if ((MSEGED)) { + ASSERT_ERTS_SACRR_UNIT_SIZE_MULTIPLE((CSZ)); + } } if ((MSEGED)) { ASSERT(IS_MSEG_CARRIER((C))); - ASSERT_ERTS_SACRR_UNIT_SIZE_MULTIPLE((CSZ)); } else { ASSERT(IS_SYS_ALLOC_CARRIER((C))); @@ -3255,13 +3257,15 @@ create_carrier(Allctr_t *allctr, Uint umem_sz, UWord flags) int is_mseg = 0; #endif -#if HALFWORD_HEAP - flags |= CFLG_FORCE_MSEG; -#elif ERTS_SUPER_ALIGNED_MSEG_ONLY - if (flags & CFLG_MBC) { + if (HALFWORD_HEAP + || (ERTS_SUPER_ALIGNED_MSEG_ONLY && (flags & CFLG_MBC)) + || !allow_sys_alloc_carriers) { flags |= CFLG_FORCE_MSEG; - } + flags &= ~CFLG_FORCE_SYS_ALLOC; +#if !HAVE_ERTS_MSEG + return NULL; #endif + } ASSERT((flags & CFLG_SBC && !(flags & CFLG_MBC)) || (flags & CFLG_MBC && !(flags & CFLG_SBC))); @@ -3601,7 +3605,6 @@ destroy_carrier(Allctr_t *allctr, Block_t *blk, Carrier_t **busy_pcrr_pp) #if HAVE_ERTS_MSEG if (IS_MSEG_CARRIER(crr)) { - ASSERT(crr_sz % ERTS_SACRR_UNIT_SZ == 0); STAT_MSEG_SBC_FREE(allctr, crr_sz, blk_sz); } else @@ -3697,6 +3700,7 @@ static struct { Eterm mmc; #endif Eterm ycs; + Eterm sac; Eterm fix_types; @@ -3789,6 +3793,7 @@ init_atoms(Allctr_t *allctr) AM_INIT(mmc); #endif AM_INIT(ycs); + AM_INIT(sac); AM_INIT(fix_types); @@ -4509,17 +4514,22 @@ erts_alcu_au_info_options(int *print_to_p, void *print_to_arg, #if HAVE_ERTS_MSEG "option mmc: %beu\n" #endif - "option ycs: %beu\n", + "option ycs: %beu\n" + "option sac: %s\n", #if HAVE_ERTS_MSEG max_mseg_carriers, #endif - sys_alloc_carrier_size); + sys_alloc_carrier_size, + allow_sys_alloc_carriers ? "true" : "false"); } if (hpp || szp) { res = NIL; ensure_atoms_initialized(NULL); add_2tup(hpp, szp, &res, + am.sac, + allow_sys_alloc_carriers ? am_true : am_false); + add_2tup(hpp, szp, &res, am.ycs, bld_uint(hpp, szp, sys_alloc_carrier_size)); #if HAVE_ERTS_MSEG @@ -5512,7 +5522,7 @@ erts_alcu_start(Allctr_t *allctr, AllctrInit_t *init) erts_atomic_init_nob(&allctr->cpool.stat.carriers_size, 0); erts_atomic_init_nob(&allctr->cpool.stat.no_carriers, 0); allctr->cpool.check_limit_count = ERTS_ALC_CPOOL_CHECK_LIMIT_COUNT; - allctr->cpool.util_limit = init->acul; + allctr->cpool.util_limit = init->ts ? 0 : init->acul; #endif allctr->sbc_threshold = init->sbct; @@ -5681,6 +5691,7 @@ erts_alcu_init(AlcUInit_t *init) #else /* #if HAVE_ERTS_MSEG */ sys_alloc_carrier_size = ((init->ycs + 4095) / 4096) * 4096; #endif + allow_sys_alloc_carriers = init->sac; #ifdef DEBUG carrier_alignment = sizeof(Unit_t); diff --git a/erts/emulator/beam/erl_alloc_util.h b/erts/emulator/beam/erl_alloc_util.h index 70ecf28172..7be6b1ed9d 100644 --- a/erts/emulator/beam/erl_alloc_util.h +++ b/erts/emulator/beam/erl_alloc_util.h @@ -32,6 +32,7 @@ typedef struct Allctr_t_ Allctr_t; typedef struct { UWord ycs; UWord mmc; + int sac; } AlcUInit_t; typedef struct { @@ -75,7 +76,8 @@ typedef struct { #define ERTS_DEFAULT_ALCU_INIT { \ 1024*1024, /* (bytes) ycs: sys_alloc carrier size */\ - ~((UWord) 0) /* (amount) mmc: max mseg carriers */ \ + ~((UWord) 0), /* (amount) mmc: max mseg carriers */\ + 1 /* (bool) sac: sys_alloc carriers */\ } #define ERTS_DEFAULT_ALLCTR_INIT { \ @@ -109,7 +111,8 @@ typedef struct { #define ERTS_DEFAULT_ALCU_INIT { \ 128*1024, /* (bytes) ycs: sys_alloc carrier size */\ - 1024 /* (amount) mmc: max mseg carriers */\ + 1024, /* (amount) mmc: max mseg carriers */\ + 1 /* (bool) sac: sys_alloc carriers */\ } #define ERTS_DEFAULT_ALLCTR_INIT { \ @@ -254,9 +257,9 @@ erts_aint32_t erts_alcu_fix_alloc_shrink(Allctr_t *, erts_aint32_t); # define MBC_ABLK_SZ_MASK (~FLG_MASK) #endif -#define MBC_ABLK_SZ(B) (ASSERT_EXPR(!is_sbc_blk(B)), (B)->bhdr & MBC_ABLK_SZ_MASK) -#define MBC_FBLK_SZ(B) (ASSERT_EXPR(!is_sbc_blk(B)), (B)->bhdr & MBC_FBLK_SZ_MASK) -#define SBC_BLK_SZ(B) (ASSERT_EXPR(is_sbc_blk(B)), (B)->bhdr & SBC_BLK_SZ_MASK) +#define MBC_ABLK_SZ(B) (ASSERT(!is_sbc_blk(B)), (B)->bhdr & MBC_ABLK_SZ_MASK) +#define MBC_FBLK_SZ(B) (ASSERT(!is_sbc_blk(B)), (B)->bhdr & MBC_FBLK_SZ_MASK) +#define SBC_BLK_SZ(B) (ASSERT(is_sbc_blk(B)), (B)->bhdr & SBC_BLK_SZ_MASK) #define CARRIER_SZ(C) \ ((C)->chdr & CARRIER_SZ_MASK) diff --git a/erts/emulator/beam/erl_ao_firstfit_alloc.c b/erts/emulator/beam/erl_ao_firstfit_alloc.c index 4e6c8b317e..396aa88e0b 100644 --- a/erts/emulator/beam/erl_ao_firstfit_alloc.c +++ b/erts/emulator/beam/erl_ao_firstfit_alloc.c @@ -85,9 +85,6 @@ #define SET_RED(N) (((AOFF_RBTree_t *) (N))->flags |= RED_FLG) #define SET_BLACK(N) (((AOFF_RBTree_t *) (N))->flags &= ~RED_FLG) -#undef ASSERT -#define ASSERT ASSERT_EXPR - #if 1 #define RBT_ASSERT ASSERT #else diff --git a/erts/emulator/beam/erl_bestfit_alloc.c b/erts/emulator/beam/erl_bestfit_alloc.c index 41f449bb28..59c14899a2 100644 --- a/erts/emulator/beam/erl_bestfit_alloc.c +++ b/erts/emulator/beam/erl_bestfit_alloc.c @@ -75,9 +75,6 @@ #define BF_BLK_SZ(B) MBC_FBLK_SZ(&(B)->hdr) -#undef ASSERT -#define ASSERT ASSERT_EXPR - #if 1 #define RBT_ASSERT ASSERT #else diff --git a/erts/emulator/beam/erl_bif_binary.c b/erts/emulator/beam/erl_bif_binary.c index 0db19a1ee6..ff775691b3 100644 --- a/erts/emulator/beam/erl_bif_binary.c +++ b/erts/emulator/beam/erl_bif_binary.c @@ -927,6 +927,9 @@ static int do_binary_match_compile(Eterm argument, Eterm *tag, Binary **binp) if (binary_bitsize(b) != 0) { goto badarg; } + if (binary_size(b) == 0) { + goto badarg; + } ++words; characters += binary_size(b); } diff --git a/erts/emulator/beam/erl_bif_info.c b/erts/emulator/beam/erl_bif_info.c index 673dfc658c..d7f1e2d971 100755 --- a/erts/emulator/beam/erl_bif_info.c +++ b/erts/emulator/beam/erl_bif_info.c @@ -1771,7 +1771,11 @@ info_1_tuple(Process* BIF_P, /* Pointer to current process. */ #if defined(PURIFY) BIF_RET(erts_make_integer(purify_new_leaks(), BIF_P)); #elif defined(VALGRIND) +# ifdef VALGRIND_DO_ADDED_LEAK_CHECK + VALGRIND_DO_ADDED_LEAK_CHECK; +# else VALGRIND_DO_LEAK_CHECK; +# endif BIF_RET(make_small(0)); #endif } else if (*tp == am_fd) { @@ -2091,7 +2095,7 @@ BIF_RETTYPE system_info_1(BIF_ALIST_1) BIF_RET(res); } else if (BIF_ARG_1 == am_sequential_tracer) { val = erts_get_system_seq_tracer(); - ASSERT(is_internal_pid(val) || is_internal_port(val) || val==am_false) + ASSERT(is_internal_pid(val) || is_internal_port(val) || val==am_false); hp = HAlloc(BIF_P, 3); res = TUPLE2(hp, am_sequential_tracer, val); BIF_RET(res); @@ -2636,6 +2640,9 @@ BIF_RETTYPE system_info_1(BIF_ALIST_1) BIF_RET(res); } + else if (ERTS_IS_ATOM_STR("ets_limit",BIF_ARG_1)) { + BIF_RET(make_small(erts_db_get_max_tabs())); + } BIF_ERROR(BIF_P, BADARG); } @@ -3286,6 +3293,9 @@ BIF_RETTYPE erts_debug_get_internal_state_1(BIF_ALIST_1) erts_smp_thr_progress_unblock(); BIF_RET(res); } + else if (ERTS_IS_ATOM_STR("mmap", BIF_ARG_1)) { + BIF_RET(erts_mmap_debug_info(BIF_P)); + } } else if (is_tuple(BIF_ARG_1)) { Eterm* tp = tuple_val(BIF_ARG_1); diff --git a/erts/emulator/beam/erl_bif_os.c b/erts/emulator/beam/erl_bif_os.c index 1062d4379b..e07c622928 100644 --- a/erts/emulator/beam/erl_bif_os.c +++ b/erts/emulator/beam/erl_bif_os.c @@ -180,3 +180,25 @@ BIF_RETTYPE os_putenv_2(BIF_ALIST_2) BIF_RET(am_true); } +BIF_RETTYPE os_unsetenv_1(BIF_ALIST_1) +{ + char *key_buf; + char buf[STATIC_BUF_SIZE]; + + key_buf = erts_convert_filename_to_native(BIF_ARG_1,buf,STATIC_BUF_SIZE, + ERTS_ALC_T_TMP,0,0,NULL); + if (!key_buf) { + BIF_ERROR(BIF_P, BADARG); + } + + if (erts_sys_unsetenv(key_buf)) { + if (key_buf != buf) { + erts_free(ERTS_ALC_T_TMP, key_buf); + } + BIF_ERROR(BIF_P, BADARG); + } + if (key_buf != buf) { + erts_free(ERTS_ALC_T_TMP, key_buf); + } + BIF_RET(am_true); +} diff --git a/erts/emulator/beam/erl_binary.h b/erts/emulator/beam/erl_binary.h index 506c4813fa..f7dc20f5e6 100644 --- a/erts/emulator/beam/erl_binary.h +++ b/erts/emulator/beam/erl_binary.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2000-2011. All Rights Reserved. + * Copyright Ericsson AB 2000-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -153,7 +153,7 @@ do { \ #define binary_bytes(Bin) \ (*binary_val(Bin) == HEADER_PROC_BIN ? \ ((ProcBin *) binary_val(Bin))->bytes : \ - (ASSERT_EXPR(thing_subtag(*binary_val(Bin)) == HEAP_BINARY_SUBTAG), \ + (ASSERT(thing_subtag(*binary_val(Bin)) == HEAP_BINARY_SUBTAG), \ (byte *)(&(((ErlHeapBin *) binary_val(Bin))->data)))) void erts_init_binary(void); @@ -183,7 +183,7 @@ BIF_RETTYPE erts_binary_part(Process *p, Eterm binary, Eterm epos, Eterm elen); #endif #define ERTS_CHK_BIN_ALIGNMENT(B) \ - do { ASSERT(!(B) || (((UWord) &((Binary *)(B))->orig_bytes[0]) & ERTS_BIN_ALIGNMENT_MASK) == ((UWord) 0)) } while(0) + do { ASSERT(!(B) || (((UWord) &((Binary *)(B))->orig_bytes[0]) & ERTS_BIN_ALIGNMENT_MASK) == ((UWord) 0)); } while(0) ERTS_GLB_INLINE byte* erts_get_aligned_binary_bytes(Eterm bin, byte** base_ptr); ERTS_GLB_INLINE void erts_free_aligned_binary_bytes(byte* buf); diff --git a/erts/emulator/beam/erl_db.c b/erts/emulator/beam/erl_db.c index 98c2988323..41e64fcd4f 100644 --- a/erts/emulator/beam/erl_db.c +++ b/erts/emulator/beam/erl_db.c @@ -2236,7 +2236,7 @@ static BIF_RETTYPE ets_select_trap_1(BIF_ALIST_1) CHECK_TABLES(); tptr = tuple_val(a1); - ASSERT(arityval(*tptr) >= 1) + ASSERT(arityval(*tptr) >= 1); if ((tb = db_get_table(p, tptr[1], DB_READ, kind)) == NULL) { BIF_ERROR(p, BADARG); @@ -2403,7 +2403,7 @@ static BIF_RETTYPE ets_select_count_1(BIF_ALIST_1) CHECK_TABLES(); tptr = tuple_val(a1); - ASSERT(arityval(*tptr) >= 1) + ASSERT(arityval(*tptr) >= 1); if ((tb = db_get_table(p, tptr[1], DB_READ, kind)) == NULL) { BIF_ERROR(p, BADARG); } @@ -3811,6 +3811,13 @@ erts_db_foreach_offheap(DbTable *tb, tb->common.meth->db_foreach_offheap(tb, func, arg); } +/* retrieve max number of ets tables */ +Uint +erts_db_get_max_tabs() +{ + return db_max_tabs; +} + /* * For testing of meta tables only. * diff --git a/erts/emulator/beam/erl_db.h b/erts/emulator/beam/erl_db.h index 6b62e10eb7..5b4681fc90 100644 --- a/erts/emulator/beam/erl_db.h +++ b/erts/emulator/beam/erl_db.h @@ -79,6 +79,8 @@ extern erts_smp_atomic_t erts_ets_misc_mem_size; Eterm erts_ets_colliding_names(Process*, Eterm name, Uint cnt); +Uint erts_db_get_max_tabs(void); + #endif #if defined(ERTS_WANT_DB_INTERNAL__) && !defined(ERTS_HAVE_DB_INTERNAL__) diff --git a/erts/emulator/beam/erl_db_util.h b/erts/emulator/beam/erl_db_util.h index 90b79e6044..328b19dfc9 100644 --- a/erts/emulator/beam/erl_db_util.h +++ b/erts/emulator/beam/erl_db_util.h @@ -457,7 +457,7 @@ int erts_db_is_compiled_ms(Eterm term); && ERTS_MAGIC_BIN_DESTRUCTOR((BP)) == erts_db_match_prog_destructor) #define Binary2MatchProg(BP) \ - (ASSERT_EXPR(IsMatchProgBinary((BP))), \ + (ASSERT(IsMatchProgBinary((BP))), \ ((MatchProg *) ERTS_MAGIC_BIN_DATA((BP)))) /* ** Debugging diff --git a/erts/emulator/beam/erl_lock_check.c b/erts/emulator/beam/erl_lock_check.c index 2114d0c001..0dd83fa6ed 100644 --- a/erts/emulator/beam/erl_lock_check.c +++ b/erts/emulator/beam/erl_lock_check.c @@ -132,6 +132,7 @@ static erts_lc_lock_order_t erts_lock_order[] = { #endif /* __WIN32__ */ { "alcu_init_atoms", NULL }, { "mseg_init_atoms", NULL }, + { "mmap_init_atoms", NULL }, { "drv_tsd", NULL }, { "async_enq_mtx", NULL }, #ifdef ERTS_SMP @@ -185,7 +186,9 @@ static erts_lc_lock_order_t erts_lock_order[] = { { "sys_gethrtime", NULL }, #endif #endif - { "erts_alloc_hard_debug", NULL } + { "erts_alloc_hard_debug", NULL }, + { "hard_dbg_mseg", NULL }, + { "erts_mmap", NULL } }; #define ERTS_LOCK_ORDER_SIZE \ diff --git a/erts/emulator/beam/erl_node_container_utils.h b/erts/emulator/beam/erl_node_container_utils.h index 0f93a3a9f0..17f6b32bb1 100644 --- a/erts/emulator/beam/erl_node_container_utils.h +++ b/erts/emulator/beam/erl_node_container_utils.h @@ -106,7 +106,7 @@ #define dist_entry_channel_no(x) \ ((x) == erts_this_dist_entry \ ? ((Uint) 0) \ - : (ASSERT_EXPR(is_atom((x)->sysname)), \ + : (ASSERT(is_atom((x)->sysname)), \ (Uint) atom_val((x)->sysname))) #define internal_channel_no(x) ((Uint) ERST_INTERNAL_CHANNEL_NO) #define external_channel_no(x) \ @@ -122,10 +122,10 @@ extern ErtsPTab erts_proc; (D), \ _TAG_IMMED1_PID) -#define internal_pid_index(PID) (ASSERT_EXPR(is_internal_pid((PID))), \ +#define internal_pid_index(PID) (ASSERT(is_internal_pid((PID))), \ erts_ptab_id2pix(&erts_proc, (PID))) -#define internal_pid_data(PID) (ASSERT_EXPR(is_internal_pid((PID))), \ +#define internal_pid_data(PID) (ASSERT(is_internal_pid((PID))), \ erts_ptab_id2data(&erts_proc, (PID))) #define internal_pid_number(x) _GET_PID_NUM(internal_pid_data((x))) @@ -193,10 +193,10 @@ extern ErtsPTab erts_port; (D), \ _TAG_IMMED1_PORT) -#define internal_port_index(PRT) (ASSERT_EXPR(is_internal_port((PRT))), \ +#define internal_port_index(PRT) (ASSERT(is_internal_port((PRT))), \ erts_ptab_id2pix(&erts_port, (PRT))) -#define internal_port_data(PRT) (ASSERT_EXPR(is_internal_port((PRT))), \ +#define internal_port_data(PRT) (ASSERT(is_internal_port((PRT))), \ erts_ptab_id2data(&erts_port, (PRT))) #define internal_port_number(x) _GET_PORT_NUM(internal_port_data((x))) diff --git a/erts/emulator/beam/erl_process.c b/erts/emulator/beam/erl_process.c index 434d5ca147..1efd070afd 100644 --- a/erts/emulator/beam/erl_process.c +++ b/erts/emulator/beam/erl_process.c @@ -294,7 +294,7 @@ ERTS_SCHED_PREF_QUICK_ALLOC_IMPL(proclist, ERTS_ALC_T_PROC_LIST) #define ERTS_SCHED_SLEEP_INFO_IX(IX) \ - (ASSERT_EXPR(-1 <= ((int) (IX)) \ + (ASSERT(-1 <= ((int) (IX)) \ && ((int) (IX)) < ((int) erts_no_schedulers)), \ &aligned_sched_sleep_info[(IX)].ssi) @@ -7471,6 +7471,7 @@ alloc_process(ErtsRunQueue *rq, erts_aint32_t state) p->approx_started = erts_get_approx_time(); p->rcount = 0; + p->heap = NULL; ASSERT(p == (Process *) (erts_ptab_pix2intptr_nob( @@ -7583,7 +7584,6 @@ erl_create_process(Process* parent, /* Parent of process (default group leader). hipe_init_process_smp(&p->hipe_smp); #endif #endif - p->heap = (Eterm *) ERTS_HEAP_ALLOC(ERTS_ALC_T_HEAP, sizeof(Eterm)*sz); p->old_hend = p->old_htop = p->old_heap = NULL; p->high_water = p->heap; diff --git a/erts/emulator/beam/erl_process.h b/erts/emulator/beam/erl_process.h index 8e5467f196..8d136f6e8b 100644 --- a/erts/emulator/beam/erl_process.h +++ b/erts/emulator/beam/erl_process.h @@ -1135,10 +1135,10 @@ extern struct erts_system_profile_flags_t erts_system_profile_flags; } while (0) #define ERTS_RUNQ_IX(IX) \ - (ASSERT_EXPR(0 <= (IX) && (IX) < erts_no_run_queues), \ + (ASSERT(0 <= (IX) && (IX) < erts_no_run_queues), \ &erts_aligned_run_queues[(IX)].runq) #define ERTS_SCHEDULER_IX(IX) \ - (ASSERT_EXPR(0 <= (IX) && (IX) < erts_no_schedulers), \ + (ASSERT(0 <= (IX) && (IX) < erts_no_schedulers), \ &erts_aligned_scheduler_data[(IX)].esd) void erts_pre_init_process(void); diff --git a/erts/emulator/beam/erl_process_dump.c b/erts/emulator/beam/erl_process_dump.c index 6cd0d23b97..2f3cf23b00 100644 --- a/erts/emulator/beam/erl_process_dump.c +++ b/erts/emulator/beam/erl_process_dump.c @@ -34,8 +34,8 @@ #define ERTS_WANT_EXTERNAL_TAGS #include "external.h" -#define WORD_FMT "%X" -#define ADDR_FMT "%X" +#define PTR_FMT "%bpX" +#define ETERM_FMT "%beX" #define OUR_NIL _make_header(0,_TAG_HEADER_FLOAT) @@ -210,9 +210,9 @@ static void dump_element(int to, void *to_arg, Eterm x) { if (is_list(x)) { - erts_print(to, to_arg, "H" WORD_FMT, list_val(x)); + erts_print(to, to_arg, "H" PTR_FMT, list_val(x)); } else if (is_boxed(x)) { - erts_print(to, to_arg, "H" WORD_FMT, boxed_val(x)); + erts_print(to, to_arg, "H" PTR_FMT, boxed_val(x)); } else if (is_immed(x)) { if (is_atom(x)) { unsigned char* s = atom_tab(atom_val(x))->name; @@ -311,7 +311,7 @@ heap_dump(int to, void *to_arg, Eterm x) } else if (is_list(x)) { ptr = list_val(x); if (ptr[0] != OUR_NIL) { - erts_print(to, to_arg, ADDR_FMT ":l", ptr); + erts_print(to, to_arg, PTR_FMT ":l", ptr); dump_element(to, to_arg, ptr[0]); erts_putc(to, to_arg, '|'); dump_element(to, to_arg, ptr[1]); @@ -330,12 +330,12 @@ heap_dump(int to, void *to_arg, Eterm x) ptr = boxed_val(x); hdr = *ptr; if (hdr != OUR_NIL) { /* If not visited */ - erts_print(to, to_arg, ADDR_FMT ":", ptr); + erts_print(to, to_arg, PTR_FMT ":", ptr); if (is_arity_value(hdr)) { Uint i; Uint arity = arityval(hdr); - erts_print(to, to_arg, "t" WORD_FMT ":", arity); + erts_print(to, to_arg, "t" ETERM_FMT ":", arity); for (i = 1; i <= arity; i++) { dump_element(to, to_arg, ptr[i]); if (is_immed(ptr[i])) { @@ -388,21 +388,43 @@ heap_dump(int to, void *to_arg, Eterm x) val->flags = (UWord) all_binaries; all_binaries = val; } - erts_print(to, to_arg, "Yc%X:%X:%X", val, + erts_print(to, to_arg, + "Yc" PTR_FMT ":" PTR_FMT ":" PTR_FMT, + val, pb->bytes - (byte *)val->orig_bytes, size); } else if (tag == SUB_BINARY_SUBTAG) { ErlSubBin* Sb = (ErlSubBin *) binary_val(x); - Eterm* real_bin = binary_val(Sb->orig); + Eterm* real_bin; void* val; + /* + * Must use boxed_val() here, because the original + * binary may have been visited and have had its + * header word changed to OUR_NIL (in which case + * binary_val() will cause an assertion failure in + * the DEBUG emulator). + */ + + real_bin = boxed_val(Sb->orig); + if (thing_subtag(*real_bin) == REFC_BINARY_SUBTAG) { + /* + * Unvisited REFC_BINARY: Point directly to + * the binary. + */ ProcBin* pb = (ProcBin *) real_bin; val = pb->val; - } else { /* Heap binary */ + } else { + /* + * Heap binary or visited REFC binary: Point + * to heap binary or ProcBin on the heap. + */ val = real_bin; } - erts_print(to, to_arg, "Ys%X:%X:%X", val, Sb->offs, size); + erts_print(to, to_arg, + "Ys" PTR_FMT ":" PTR_FMT ":" PTR_FMT, + val, Sb->offs, size); } erts_putc(to, to_arg, '\n'); *ptr = OUR_NIL; @@ -438,7 +460,7 @@ dump_binaries(int to, void *to_arg, Binary* current) long size = current->orig_size; byte* bytes = (byte*) current->orig_bytes; - erts_print(to, to_arg, "=binary:%X\n", current); + erts_print(to, to_arg, "=binary:" PTR_FMT "\n", current); erts_print(to, to_arg, "%X:", size); for (i = 0; i < size; i++) { erts_print(to, to_arg, "%02X", bytes[i]); diff --git a/erts/emulator/beam/erl_trace.c b/erts/emulator/beam/erl_trace.c index fa015ee4b9..ff7fdfcfca 100644 --- a/erts/emulator/beam/erl_trace.c +++ b/erts/emulator/beam/erl_trace.c @@ -2184,7 +2184,7 @@ trace_gc(Process *p, Eterm what) AM_bin_old_vheap_block_size }; - Uint values[] = { + UWord values[] = { OLD_HEAP(p) ? OLD_HEND(p) - OLD_HEAP(p) : 0, HEAP_SIZE(p), MBUF_SIZE(p), @@ -2198,7 +2198,7 @@ trace_gc(Process *p, Eterm what) BIN_OLD_VHEAP_SZ(p) }; #define LOCAL_HEAP_SIZE \ - (sizeof(values)/sizeof(Eterm)) * \ + (sizeof(values)/sizeof(*values)) * \ (2/*cons*/ + 3/*2-tuple*/ + BIG_UINT_HEAP_SIZE) + \ 5/*4-tuple */ + TS_HEAP_WORDS DeclareTmpHeap(local_heap,LOCAL_HEAP_SIZE,p); @@ -2206,7 +2206,7 @@ trace_gc(Process *p, Eterm what) Eterm* limit; #endif - ASSERT(sizeof(values)/sizeof(Uint) == sizeof(tags)/sizeof(Eterm)); + ASSERT(sizeof(values)/sizeof(*values) == sizeof(tags)/sizeof(Eterm)); UseTmpHeap(LOCAL_HEAP_SIZE,p); @@ -2214,9 +2214,9 @@ trace_gc(Process *p, Eterm what) hp = local_heap; #ifdef DEBUG size = 0; - (void) erts_bld_atom_uint_2tup_list(NULL, + (void) erts_bld_atom_uword_2tup_list(NULL, &size, - sizeof(values)/sizeof(Uint), + sizeof(values)/sizeof(*values), tags, values); size += 5/*4-tuple*/ + TS_SIZE(p); @@ -2229,9 +2229,9 @@ trace_gc(Process *p, Eterm what) ERTS_TRACE_FLAGS(p)); size = 0; - (void) erts_bld_atom_uint_2tup_list(NULL, + (void) erts_bld_atom_uword_2tup_list(NULL, &size, - sizeof(values)/sizeof(Uint), + sizeof(values)/sizeof(*values), tags, values); size += 5/*4-tuple*/ + TS_SIZE(p); @@ -2244,9 +2244,9 @@ trace_gc(Process *p, Eterm what) ASSERT(size <= LOCAL_HEAP_SIZE); #endif - msg = erts_bld_atom_uint_2tup_list(&hp, + msg = erts_bld_atom_uword_2tup_list(&hp, NULL, - sizeof(values)/sizeof(Uint), + sizeof(values)/sizeof(*values), tags, values); @@ -2415,7 +2415,7 @@ monitor_long_gc(Process *p, Uint time) { am_old_heap_size, am_heap_size }; - Eterm values[] = { + UWord values[] = { time, OLD_HEAP(p) ? OLD_HEND(p) - OLD_HEAP(p) : 0, HEAP_SIZE(p), @@ -2436,9 +2436,9 @@ monitor_long_gc(Process *p, Uint time) { #endif hsz = 0; - (void) erts_bld_atom_uint_2tup_list(NULL, + (void) erts_bld_atom_uword_2tup_list(NULL, &hsz, - sizeof(values)/sizeof(Uint), + sizeof(values)/sizeof(*values), tags, values); hsz += 5 /* 4-tuple */; @@ -2449,9 +2449,9 @@ monitor_long_gc(Process *p, Uint time) { hp_end = hp + hsz; #endif - list = erts_bld_atom_uint_2tup_list(&hp, + list = erts_bld_atom_uword_2tup_list(&hp, NULL, - sizeof(values)/sizeof(Uint), + sizeof(values)/sizeof(*values), tags, values); msg = TUPLE4(hp, am_monitor, p->common.id, am_long_gc, list); @@ -2489,7 +2489,7 @@ monitor_large_heap(Process *p) { am_old_heap_size, am_heap_size }; - Uint values[] = { + UWord values[] = { OLD_HEAP(p) ? OLD_HEND(p) - OLD_HEAP(p) : 0, HEAP_SIZE(p), MBUF_SIZE(p), @@ -2511,9 +2511,9 @@ monitor_large_heap(Process *p) { #endif hsz = 0; - (void) erts_bld_atom_uint_2tup_list(NULL, + (void) erts_bld_atom_uword_2tup_list(NULL, &hsz, - sizeof(values)/sizeof(Uint), + sizeof(values)/sizeof(*values), tags, values); hsz += 5 /* 4-tuple */; @@ -2524,9 +2524,9 @@ monitor_large_heap(Process *p) { hp_end = hp + hsz; #endif - list = erts_bld_atom_uint_2tup_list(&hp, + list = erts_bld_atom_uword_2tup_list(&hp, NULL, - sizeof(values)/sizeof(Uint), + sizeof(values)/sizeof(*values), tags, values); msg = TUPLE4(hp, am_monitor, p->common.id, am_large_heap, list); diff --git a/erts/emulator/beam/erl_unicode.c b/erts/emulator/beam/erl_unicode.c index e00440b905..569c0a7d31 100644 --- a/erts/emulator/beam/erl_unicode.c +++ b/erts/emulator/beam/erl_unicode.c @@ -1476,6 +1476,9 @@ static Eterm do_utf8_to_list_normalize(Process *p, Uint num, byte *bytes, Uint s Uint16 savepoints[4]; int numpoints = 0; + if (num == 0) + return NIL; + ASSERT(num > 0); hp = HAlloc(p,num * 2); /* May be to much */ diff --git a/erts/emulator/beam/erl_utils.h b/erts/emulator/beam/erl_utils.h index 80d29d554a..292d135946 100644 --- a/erts/emulator/beam/erl_utils.h +++ b/erts/emulator/beam/erl_utils.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2012. All Rights Reserved. + * Copyright Ericsson AB 2012-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -168,6 +168,10 @@ Eterm erts_bld_uint64(Uint **hpp, Uint *szp, Uint64 ui64); Eterm erts_bld_sint64(Uint **hpp, Uint *szp, Sint64 si64); Eterm erts_bld_cons(Uint **hpp, Uint *szp, Eterm car, Eterm cdr); Eterm erts_bld_tuple(Uint **hpp, Uint *szp, Uint arity, ...); +#define erts_bld_tuple2(H,S,E1,E2) erts_bld_tuple(H,S,2,E1,E2) +#define erts_bld_tuple3(H,S,E1,E2,E3) erts_bld_tuple(H,S,3,E1,E2,E3) +#define erts_bld_tuple4(H,S,E1,E2,E3,E4) erts_bld_tuple(H,S,4,E1,E2,E3,E4) +#define erts_bld_tuple5(H,S,E1,E2,E3,E4,E5) erts_bld_tuple(H,S,5,E1,E2,E3,E4,E5) Eterm erts_bld_tuplev(Uint **hpp, Uint *szp, Uint arity, Eterm terms[]); Eterm erts_bld_string_n(Uint **hpp, Uint *szp, const char *str, Sint len); #define erts_bld_string(hpp,szp,str) erts_bld_string_n(hpp,szp,str,strlen(str)) @@ -175,8 +179,8 @@ Eterm erts_bld_list(Uint **hpp, Uint *szp, Sint length, Eterm terms[]); Eterm erts_bld_2tup_list(Uint **hpp, Uint *szp, Sint length, Eterm terms1[], Uint terms2[]); Eterm -erts_bld_atom_uint_2tup_list(Uint **hpp, Uint *szp, - Sint length, Eterm atoms[], Uint uints[]); +erts_bld_atom_uword_2tup_list(Uint **hpp, Uint *szp, + Sint length, Eterm atoms[], UWord uints[]); Eterm erts_bld_atom_2uint_3tup_list(Uint **hpp, Uint *szp, Sint length, Eterm atoms[], Uint uints1[], Uint uints2[]); diff --git a/erts/emulator/beam/erl_vm.h b/erts/emulator/beam/erl_vm.h index c962955de9..337422eead 100644 --- a/erts/emulator/beam/erl_vm.h +++ b/erts/emulator/beam/erl_vm.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1996-2012. All Rights Reserved. + * Copyright Ericsson AB 1996-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -80,7 +80,7 @@ # ifdef CHECK_FOR_HOLES # define INIT_HEAP_MEM(p,sz) erts_set_hole_marker(HEAP_TOP(p), (sz)) # else -# define INIT_HEAP_MEM(p,sz) memset(HEAP_TOP(p),DEBUG_BAD_BYTE,(sz)*sizeof(Eterm*)) +# define INIT_HEAP_MEM(p,sz) memset(HEAP_TOP(p),0x01,(sz)*sizeof(Eterm*)) # endif #else # define INIT_HEAP_MEM(p,sz) ((void)0) @@ -98,7 +98,7 @@ * failing that, in a heap fragment. */ #define HAllocX(p, sz, xtra) \ - (ASSERT_EXPR((sz) >= 0), \ + (ASSERT((sz) >= 0), \ ErtsHAllocLockCheck(p), \ (IS_FORCE_HEAP_FRAGS || (((HEAP_LIMIT(p) - HEAP_TOP(p)) < (sz))) \ ? erts_heap_alloc((p),(sz),(xtra)) \ @@ -135,14 +135,14 @@ */ #ifdef CHECK_FOR_HOLES # define HeapOnlyAlloc(p, sz) \ - (ASSERT_EXPR((sz) >= 0), \ - (ASSERT_EXPR(((HEAP_LIMIT(p) - HEAP_TOP(p)) >= (sz))), \ + (ASSERT((sz) >= 0), \ + (ASSERT(((HEAP_LIMIT(p) - HEAP_TOP(p)) >= (sz))), \ (erts_set_hole_marker(HEAP_TOP(p), (sz)), \ (HEAP_TOP(p) = HEAP_TOP(p) + (sz), HEAP_TOP(p) - (sz))))) #else # define HeapOnlyAlloc(p, sz) \ - (ASSERT_EXPR((sz) >= 0), \ - (ASSERT_EXPR(((HEAP_LIMIT(p) - HEAP_TOP(p)) >= (sz))), \ + (ASSERT((sz) >= 0), \ + (ASSERT(((HEAP_LIMIT(p) - HEAP_TOP(p)) >= (sz))), \ (HEAP_TOP(p) = HEAP_TOP(p) + (sz), HEAP_TOP(p) - (sz)))) #endif diff --git a/erts/emulator/beam/external.h b/erts/emulator/beam/external.h index e37d47919e..ff29e84972 100644 --- a/erts/emulator/beam/external.h +++ b/erts/emulator/beam/external.h @@ -138,8 +138,8 @@ typedef struct { #define ERTS_DIST_EXT_SIZE(EDEP) \ (sizeof(ErtsDistExternal) \ - (((EDEP)->flags & ERTS_DIST_EXT_ATOM_TRANS_TAB) \ - ? (ASSERT_EXPR(0 <= (EDEP)->attab.size \ - && (EDEP)->attab.size <= ERTS_ATOM_CACHE_SIZE), \ + ? (ASSERT(0 <= (EDEP)->attab.size \ + && (EDEP)->attab.size <= ERTS_ATOM_CACHE_SIZE), \ sizeof(Eterm)*(ERTS_ATOM_CACHE_SIZE - (EDEP)->attab.size)) \ : sizeof(ErtsAtomTranslationTable))) diff --git a/erts/emulator/beam/global.h b/erts/emulator/beam/global.h index bacd5a5752..063d16c0c7 100755 --- a/erts/emulator/beam/global.h +++ b/erts/emulator/beam/global.h @@ -866,13 +866,13 @@ Eterm store_external_or_ref_in_proc_(Process *, Eterm); Eterm store_external_or_ref_(Uint **, ErlOffHeap*, Eterm); #define NC_HEAP_SIZE(NC) \ - (ASSERT_EXPR(is_node_container((NC))), \ + (ASSERT(is_node_container((NC))), \ IS_CONST((NC)) ? 0 : (thing_arityval(*boxed_val((NC))) + 1)) #define STORE_NC(Hpp, ETpp, NC) \ - (ASSERT_EXPR(is_node_container((NC))), \ + (ASSERT(is_node_container((NC))), \ IS_CONST((NC)) ? (NC) : store_external_or_ref_((Hpp), (ETpp), (NC))) #define STORE_NC_IN_PROC(Pp, NC) \ - (ASSERT_EXPR(is_node_container((NC))), \ + (ASSERT(is_node_container((NC))), \ IS_CONST((NC)) ? (NC) : store_external_or_ref_in_proc_((Pp), (NC))) /* duplicates from big.h */ diff --git a/erts/emulator/beam/io.c b/erts/emulator/beam/io.c index aeecea1ff5..6911fd8241 100644 --- a/erts/emulator/beam/io.c +++ b/erts/emulator/beam/io.c @@ -1330,7 +1330,7 @@ force_imm_drv_call(ErtsTryImmDrvCallState *sp) erts_aint32_t invalid_state; Port *prt = sp->port; - ASSERT(ERTS_IS_CRASH_DUMPING) + ASSERT(ERTS_IS_CRASH_DUMPING); ASSERT(is_atom(sp->port_op)); invalid_state = sp->state; diff --git a/erts/emulator/beam/sys.h b/erts/emulator/beam/sys.h index 096394b878..d22f125945 100644 --- a/erts/emulator/beam/sys.h +++ b/erts/emulator/beam/sys.h @@ -149,19 +149,14 @@ typedef ERTS_SYS_FD_TYPE ErtsSysFdType; # define ERTS_EXIT_AFTER_DUMP exit #endif +#define ERTS_ASSERT(e) \ + ((void) ((e) ? 1 : (erl_assert_error(#e, __func__, __FILE__, __LINE__), 0))) +void erl_assert_error(const char* expr, const char *func, const char* file, int line); + #ifdef DEBUG -# define ASSERT(e) \ - if (e) { \ - ; \ - } else { \ - erl_assert_error(#e, __FILE__, __LINE__); \ - } -# define ASSERT_EXPR(e) \ - ((void) ((e) ? 1 : (erl_assert_error(#e, __FILE__, __LINE__), 0))) -void erl_assert_error(char* expr, char* file, int line); +# define ASSERT(e) ERTS_ASSERT(e) #else -# define ASSERT(e) -# define ASSERT_EXPR(e) ((void) 1) +# define ASSERT(e) ((void) 1) #endif /* @@ -282,16 +277,19 @@ typedef unsigned long UWord; typedef long SWord; #define SWORD_CONSTANT(Const) Const##L #define UWORD_CONSTANT(Const) Const##UL +#define ERTS_SWORD_MAX LONG_MAX #elif SIZEOF_VOID_P == SIZEOF_INT typedef unsigned int UWord; typedef int SWord; #define SWORD_CONSTANT(Const) Const #define UWORD_CONSTANT(Const) Const##U +#define ERTS_SWORD_MAX INT_MAX #elif SIZEOF_VOID_P == SIZEOF_LONG_LONG typedef unsigned long long UWord; typedef long long SWord; #define SWORD_CONSTANT(Const) Const##LL #define UWORD_CONSTANT(Const) Const##ULL +#define ERTS_SWORD_MAX LLONG_MAX #else #error Found no appropriate type to use for 'Eterm', 'Uint' and 'Sint' #endif @@ -304,6 +302,7 @@ typedef unsigned long Uint; typedef long Sint; #define SWORD_CONSTANT(Const) Const##L #define UWORD_CONSTANT(Const) Const##UL +#define ERTS_SWORD_MAX LONG_MAX #define ERTS_SIZEOF_ETERM SIZEOF_LONG #define ErtsStrToSint strtol #elif SIZEOF_VOID_P == SIZEOF_INT @@ -312,6 +311,7 @@ typedef unsigned int Uint; typedef int Sint; #define SWORD_CONSTANT(Const) Const #define UWORD_CONSTANT(Const) Const##U +#define ERTS_SWORD_MAX INT_MAX #define ERTS_SIZEOF_ETERM SIZEOF_INT #define ErtsStrToSint strtol #elif SIZEOF_VOID_P == SIZEOF_LONG_LONG @@ -320,6 +320,7 @@ typedef unsigned long long Uint; typedef long long Sint; #define SWORD_CONSTANT(Const) Const##LL #define UWORD_CONSTANT(Const) Const##ULL +#define ERTS_SWORD_MAX LLONG_MAX #define ERTS_SIZEOF_ETERM SIZEOF_LONG_LONG #if defined(__WIN32__) #define ErtsStrToSint _strtoi64 @@ -749,6 +750,8 @@ int erts_sys_getenv(char *key, char *value, size_t *size); int erts_sys_getenv_raw(char *key, char *value, size_t *size); /* erts_sys_getenv__() is only allowed to be used in early init phase */ int erts_sys_getenv__(char *key, char *value, size_t *size); +/* erst_sys_unsetenv() returns 0 on success and a value != 0 on failure. */ +int erts_sys_unsetenv(char *key); /* Easier to use, but not as efficient, environment functions */ char *erts_read_env(char *key); diff --git a/erts/emulator/beam/utils.c b/erts/emulator/beam/utils.c index bd2be7afca..0d75bbcc77 100644 --- a/erts/emulator/beam/utils.c +++ b/erts/emulator/beam/utils.c @@ -576,8 +576,8 @@ erts_bld_2tup_list(Uint **hpp, Uint *szp, } Eterm -erts_bld_atom_uint_2tup_list(Uint **hpp, Uint *szp, - Sint length, Eterm atoms[], Uint uints[]) +erts_bld_atom_uword_2tup_list(Uint **hpp, Uint *szp, + Sint length, Eterm atoms[], UWord uints[]) { Sint i; Eterm res = THE_NON_VALUE; diff --git a/erts/emulator/drivers/common/inet_drv.c b/erts/emulator/drivers/common/inet_drv.c index f55e6efacc..45fac69303 100644 --- a/erts/emulator/drivers/common/inet_drv.c +++ b/erts/emulator/drivers/common/inet_drv.c @@ -4577,7 +4577,7 @@ static ErlDrvSSizeT inet_ctl_getiflist(inet_descriptor* desc, case AF_INET6: #endif case AF_INET: - ASSERT(sp+IFNAMSIZ+1 < sbuf+ifc.ifc_len+1) + ASSERT(sp+IFNAMSIZ+1 < sbuf+ifc.ifc_len+1); strncpy(sp, ifrp->ifr_name, IFNAMSIZ); sp[IFNAMSIZ] = '\0'; sp += strlen(sp), ++sp; diff --git a/erts/emulator/drivers/unix/ttsl_drv.c b/erts/emulator/drivers/unix/ttsl_drv.c index 1e436830e7..491e0a090e 100644 --- a/erts/emulator/drivers/unix/ttsl_drv.c +++ b/erts/emulator/drivers/unix/ttsl_drv.c @@ -745,7 +745,7 @@ static Sint16 get_sint16(char *s) { return ((*s << 8) | ((byte*)s)[1]); } - + static int start_lbuf(void) { if (!lbuf && !(lbuf = ( Uint32*) driver_alloc(lbuf_size * sizeof(Uint32)))) @@ -1091,7 +1091,7 @@ static int move_cursor(int from, int to) move_left(-dc); return TRUE; } - + static int start_termcap(void) { int eres; @@ -1187,7 +1187,7 @@ static int move_down(int n) tputs(down, 1, outc); return TRUE; } - + /* * Updates cols if terminal has resized (SIGWINCH). Should be called @@ -1209,7 +1209,7 @@ static void update_cols(void) cols = width; } } - + /* * Put a terminal device into non-canonical mode with ECHO off. diff --git a/erts/emulator/drivers/win32/win_efile.c b/erts/emulator/drivers/win32/win_efile.c index b36a103f8e..319065f57b 100644 --- a/erts/emulator/drivers/win32/win_efile.c +++ b/erts/emulator/drivers/win32/win_efile.c @@ -1216,7 +1216,7 @@ int flags; return 1; } - + /* * is_root_unc_name - returns TRUE if the argument is a UNC name specifying * a root share. That is, if it is of the form \\server\share\. diff --git a/erts/emulator/sys/common/erl_mmap.c b/erts/emulator/sys/common/erl_mmap.c new file mode 100644 index 0000000000..3f6813e1a5 --- /dev/null +++ b/erts/emulator/sys/common/erl_mmap.c @@ -0,0 +1,2832 @@ +/* + * %CopyrightBegin% + * + * Copyright Ericsson AB 2002-2013. All Rights Reserved. + * + * The contents of this file are subject to the Erlang Public License, + * Version 1.1, (the "License"); you may not use this file except in + * compliance with the License. You should have received a copy of the + * Erlang Public License along with this software. If not, it can be + * retrieved online at http://www.erlang.org/. + * + * Software distributed under the License is distributed on an "AS IS" + * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See + * the License for the specific language governing rights and limitations + * under the License. + * + * %CopyrightEnd% + */ +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#include "sys.h" +#include "erl_process.h" +#include "erl_smp.h" +#include "atom.h" +#include "erl_mmap.h" +#include <stddef.h> + +/* #define ERTS_MMAP_OP_RINGBUF_SZ 100 */ + +#if defined(DEBUG) || 0 +# undef ERTS_MMAP_DEBUG +# define ERTS_MMAP_DEBUG +# ifndef ERTS_MMAP_OP_RINGBUF_SZ +# define ERTS_MMAP_OP_RINGBUF_SZ 100 +# endif +#endif + +#ifndef ERTS_MMAP_OP_RINGBUF_SZ +# define ERTS_MMAP_OP_RINGBUF_SZ 0 +#endif + +/* #define ERTS_MMAP_DEBUG_FILL_AREAS */ + +#ifdef ERTS_MMAP_DEBUG +# define ERTS_MMAP_ASSERT ERTS_ASSERT +#else +# define ERTS_MMAP_ASSERT(A) ((void) 1) +#endif + +/* + * `mmap_state.sa.bot` and `mmap_state.sua.top` are read only after + * initialization, but the other pointers are not; i.e., only + * ERTS_MMAP_IN_SUPERCARRIER() is allowed without the mutex held. + */ +#define ERTS_MMAP_IN_SUPERCARRIER(PTR) \ + (((UWord) (PTR)) - ((UWord) mmap_state.sa.bot) \ + < ((UWord) mmap_state.sua.top) - ((UWord) mmap_state.sa.bot)) +#define ERTS_MMAP_IN_SUPERALIGNED_AREA(PTR) \ + (ERTS_SMP_LC_ASSERT(erts_lc_mtx_is_locked(&mmap_state.mtx)), \ + (((UWord) (PTR)) - ((UWord) mmap_state.sa.bot) \ + < ((UWord) mmap_state.sa.top) - ((UWord) mmap_state.sa.bot))) +#define ERTS_MMAP_IN_SUPERUNALIGNED_AREA(PTR) \ + (ERTS_SMP_LC_ASSERT(erts_lc_mtx_is_locked(&mmap_state.mtx)), \ + (((UWord) (PTR)) - ((UWord) mmap_state.sua.bot) \ + < ((UWord) mmap_state.sua.top) - ((UWord) mmap_state.sua.bot))) + +int erts_have_erts_mmap; +UWord erts_page_inv_mask; + +#if defined(DEBUG) || defined(ERTS_MMAP_DEBUG) +# undef RBT_DEBUG +# define RBT_DEBUG +#endif +#ifdef RBT_DEBUG +# define RBT_ASSERT ERTS_ASSERT +# define IF_RBT_DEBUG(C) C +#else +# define RBT_ASSERT(x) +# define IF_RBT_DEBUG(C) +#endif + +typedef struct RBTNode_ RBTNode; +struct RBTNode_ { + UWord parent_and_color; /* color in bit 0 of parent ptr */ + RBTNode *left; + RBTNode *right; +}; + +#define RED_FLG (1) +#define IS_RED(N) ((N) && ((N)->parent_and_color & RED_FLG)) +#define IS_BLACK(N) (!IS_RED(N)) +#define SET_RED(N) ((N)->parent_and_color |= RED_FLG) +#define SET_BLACK(N) ((N)->parent_and_color &= ~RED_FLG) + +static ERTS_INLINE RBTNode* parent(RBTNode* node) +{ + return (RBTNode*) (node->parent_and_color & ~RED_FLG); +} + +static ERTS_INLINE void set_parent(RBTNode* node, RBTNode* parent) +{ + RBT_ASSERT(!((UWord)parent & RED_FLG)); + node->parent_and_color = ((UWord)parent) | (node->parent_and_color & RED_FLG); +} + +static ERTS_INLINE UWord parent_and_color(RBTNode* parent, int color) +{ + RBT_ASSERT(!((UWord)parent & RED_FLG)); + RBT_ASSERT(!(color & ~RED_FLG)); + return ((UWord)parent) | color; +} + + +enum SortOrder { + ADDR_ORDER, /* only address order */ + SA_SZ_ADDR_ORDER, /* first super-aligned size then address order */ + SZ_REVERSE_ADDR_ORDER /* first size then reverse address order */ +}; +#ifdef HARD_DEBUG +static const char* sort_order_names[] = {"Address","SuperAlignedSize-Address","Size-RevAddress"}; +#endif + +typedef struct { + RBTNode* root; + enum SortOrder order; +}RBTree; + +#ifdef HARD_DEBUG +# define HARD_CHECK_IS_MEMBER(ROOT,NODE) rbt_assert_is_member(ROOT,NODE) +# define HARD_CHECK_TREE(TREE,SZ) check_tree(TREE, SZ) +static int rbt_assert_is_member(RBTNode* root, RBTNode* node); +static RBTNode* check_tree(RBTree* tree, Uint); +#else +# define HARD_CHECK_IS_MEMBER(ROOT,NODE) +# define HARD_CHECK_TREE(TREE,SZ) +#endif + +#if ERTS_MMAP_OP_RINGBUF_SZ + +static int mmap_op_ix; + +typedef enum { + ERTS_OP_TYPE_NONE, + ERTS_OP_TYPE_MMAP, + ERTS_OP_TYPE_MUNMAP, + ERTS_OP_TYPE_MREMAP +} ErtsMMapOpType; + +typedef struct { + ErtsMMapOpType type; + void *result; + UWord in_size; + UWord out_size; + void *old_ptr; + UWord old_size; +} ErtsMMapOp; + +static ErtsMMapOp mmap_ops[ERTS_MMAP_OP_RINGBUF_SZ]; + +#define ERTS_MMAP_OP_RINGBUF_INIT() \ + do { \ + int ix__; \ + for (ix__ = 0; ix__ < ERTS_MMAP_OP_RINGBUF_SZ; ix__++) {\ + mmap_ops[ix__].type = ERTS_OP_TYPE_NONE; \ + mmap_ops[ix__].result = NULL; \ + mmap_ops[ix__].in_size = 0; \ + mmap_ops[ix__].out_size = 0; \ + mmap_ops[ix__].old_ptr = NULL; \ + mmap_ops[ix__].old_size = 0; \ + } \ + mmap_op_ix = ERTS_MMAP_OP_RINGBUF_SZ-1; \ + } while (0) + +#define ERTS_MMAP_OP_START(SZ) \ + do { \ + int ix__; \ + if (++mmap_op_ix >= ERTS_MMAP_OP_RINGBUF_SZ) \ + mmap_op_ix = 0; \ + ix__ = mmap_op_ix; \ + mmap_ops[ix__].type = ERTS_OP_TYPE_MMAP; \ + mmap_ops[ix__].result = NULL; \ + mmap_ops[ix__].in_size = (SZ); \ + mmap_ops[ix__].out_size = 0; \ + mmap_ops[ix__].old_ptr = NULL; \ + mmap_ops[ix__].old_size = 0; \ + } while (0) + +#define ERTS_MMAP_OP_END(PTR, SZ) \ + do { \ + int ix__ = mmap_op_ix; \ + mmap_ops[ix__].result = (PTR); \ + mmap_ops[ix__].out_size = (SZ); \ + } while (0) + +#define ERTS_MMAP_OP_LCK(RES, IN_SZ, OUT_SZ) \ + do { \ + erts_smp_mtx_lock(&mmap_state.mtx); \ + ERTS_MMAP_OP_START((IN_SZ)); \ + ERTS_MMAP_OP_END((RES), (OUT_SZ)); \ + erts_smp_mtx_unlock(&mmap_state.mtx); \ + } while (0) + +#define ERTS_MUNMAP_OP(PTR, SZ) \ + do { \ + int ix__; \ + if (++mmap_op_ix >= ERTS_MMAP_OP_RINGBUF_SZ) \ + mmap_op_ix = 0; \ + ix__ = mmap_op_ix; \ + mmap_ops[ix__].type = ERTS_OP_TYPE_MUNMAP; \ + mmap_ops[ix__].result = NULL; \ + mmap_ops[ix__].in_size = 0; \ + mmap_ops[ix__].out_size = 0; \ + mmap_ops[ix__].old_ptr = (PTR); \ + mmap_ops[ix__].old_size = (SZ); \ + } while (0) + +#define ERTS_MUNMAP_OP_LCK(PTR, SZ) \ + do { \ + erts_smp_mtx_lock(&mmap_state.mtx); \ + ERTS_MUNMAP_OP((PTR), (SZ)); \ + erts_smp_mtx_unlock(&mmap_state.mtx); \ + } while (0) + +#define ERTS_MREMAP_OP_START(OLD_PTR, OLD_SZ, IN_SZ) \ + do { \ + int ix__; \ + if (++mmap_op_ix >= ERTS_MMAP_OP_RINGBUF_SZ) \ + mmap_op_ix = 0; \ + ix__ = mmap_op_ix; \ + mmap_ops[ix__].type = ERTS_OP_TYPE_MREMAP; \ + mmap_ops[ix__].result = NULL; \ + mmap_ops[ix__].in_size = (IN_SZ); \ + mmap_ops[ix__].out_size = (OLD_SZ); \ + mmap_ops[ix__].old_ptr = (OLD_PTR); \ + mmap_ops[ix__].old_size = (OLD_SZ); \ + } while (0) + +#define ERTS_MREMAP_OP_END(PTR, SZ) \ + do { \ + int ix__ = mmap_op_ix; \ + mmap_ops[ix__].result = (PTR); \ + mmap_ops[mmap_op_ix].out_size = (SZ); \ + } while (0) + +#define ERTS_MREMAP_OP_LCK(RES, OLD_PTR, OLD_SZ, IN_SZ, OUT_SZ) \ + do { \ + erts_smp_mtx_lock(&mmap_state.mtx); \ + ERTS_MREMAP_OP_START((OLD_PTR), (OLD_SZ), (IN_SZ)); \ + ERTS_MREMAP_OP_END((RES), (OUT_SZ)); \ + erts_smp_mtx_unlock(&mmap_state.mtx); \ + } while (0) + +#define ERTS_MMAP_OP_ABORT() \ + do { \ + int ix__ = mmap_op_ix; \ + mmap_ops[ix__].type = ERTS_OP_TYPE_NONE; \ + mmap_ops[ix__].result = NULL; \ + mmap_ops[ix__].in_size = 0; \ + mmap_ops[ix__].out_size = 0; \ + mmap_ops[ix__].old_ptr = NULL; \ + mmap_ops[ix__].old_size = 0; \ + if (--mmap_op_ix < 0) \ + mmap_op_ix = ERTS_MMAP_OP_RINGBUF_SZ-1; \ + } while (0) + +#else + +#define ERTS_MMAP_OP_RINGBUF_INIT() +#define ERTS_MMAP_OP_START(SZ) +#define ERTS_MMAP_OP_END(PTR, SZ) +#define ERTS_MMAP_OP_LCK(RES, IN_SZ, OUT_SZ) +#define ERTS_MUNMAP_OP(PTR, SZ) +#define ERTS_MUNMAP_OP_LCK(PTR, SZ) +#define ERTS_MREMAP_OP_START(OLD_PTR, OLD_SZ, IN_SZ) +#define ERTS_MREMAP_OP_END(PTR, SZ) +#define ERTS_MREMAP_OP_LCK(RES, OLD_PTR, OLD_SZ, IN_SZ, OUT_SZ) +#define ERTS_MMAP_OP_ABORT() + +#endif + +typedef struct { + RBTNode snode; /* node in 'stree' */ + RBTNode anode; /* node in 'atree' */ + char* start; + char* end; +}ErtsFreeSegDesc; + +typedef struct { + RBTree stree; /* size ordered tree */ + RBTree atree; /* address ordered tree */ + Uint nseg; +}ErtsFreeSegMap; + +static struct { + int (*reserve_physical)(char *, UWord); + void (*unreserve_physical)(char *, UWord); + int supercarrier; + int no_os_mmap; + /* + * Super unaligend area is located above super aligned + * area. That is, `sa.bot` is beginning of the super + * carrier, `sua.top` is the end of the super carrier, + * and sa.top and sua.bot moves towards eachother. + */ + struct { + char *top; + char *bot; + ErtsFreeSegMap map; + } sua; + struct { + char *top; + char *bot; + ErtsFreeSegMap map; + } sa; +#if HAVE_MMAP && (!defined(MAP_ANON) && !defined(MAP_ANONYMOUS)) + int mmap_fd; +#endif + erts_smp_mtx_t mtx; + struct { + char *free_list; + char *unused_start; + char *unused_end; + char *new_area_hint; + Uint reserved; + } desc; + struct { + UWord free_seg_descs; + struct { + UWord curr; + UWord max; + } free_segs; + } no; + struct { + struct { + UWord total; + struct { + UWord total; + UWord sa; + UWord sua; + } used; + } supercarrier; + struct { + UWord used; + } os; + } size; +} mmap_state; + +#define ERTS_MMAP_SIZE_SC_SA_INC(SZ) \ + do { \ + mmap_state.size.supercarrier.used.total += (SZ); \ + mmap_state.size.supercarrier.used.sa += (SZ); \ + ERTS_MMAP_ASSERT(mmap_state.size.supercarrier.used.total \ + <= mmap_state.size.supercarrier.total); \ + ERTS_MMAP_ASSERT(mmap_state.size.supercarrier.used.sa \ + <= mmap_state.size.supercarrier.used.total); \ + } while (0) +#define ERTS_MMAP_SIZE_SC_SA_DEC(SZ) \ + do { \ + ERTS_MMAP_ASSERT(mmap_state.size.supercarrier.used.total >= (SZ)); \ + mmap_state.size.supercarrier.used.total -= (SZ); \ + ERTS_MMAP_ASSERT(mmap_state.size.supercarrier.used.sa >= (SZ)); \ + mmap_state.size.supercarrier.used.sa -= (SZ); \ + } while (0) +#define ERTS_MMAP_SIZE_SC_SUA_INC(SZ) \ + do { \ + mmap_state.size.supercarrier.used.total += (SZ); \ + mmap_state.size.supercarrier.used.sua += (SZ); \ + ERTS_MMAP_ASSERT(mmap_state.size.supercarrier.used.total \ + <= mmap_state.size.supercarrier.total); \ + ERTS_MMAP_ASSERT(mmap_state.size.supercarrier.used.sua \ + <= mmap_state.size.supercarrier.used.total); \ + } while (0) +#define ERTS_MMAP_SIZE_SC_SUA_DEC(SZ) \ + do { \ + ERTS_MMAP_ASSERT(mmap_state.size.supercarrier.used.total >= (SZ)); \ + mmap_state.size.supercarrier.used.total -= (SZ); \ + ERTS_MMAP_ASSERT(mmap_state.size.supercarrier.used.sua >= (SZ)); \ + mmap_state.size.supercarrier.used.sua -= (SZ); \ + } while (0) +#define ERTS_MMAP_SIZE_OS_INC(SZ) \ + do { \ + ERTS_MMAP_ASSERT(mmap_state.size.os.used + (SZ) >= (SZ)); \ + mmap_state.size.os.used += (SZ); \ + } while (0) +#define ERTS_MMAP_SIZE_OS_DEC(SZ) \ + do { \ + ERTS_MMAP_ASSERT(mmap_state.size.os.used >= (SZ)); \ + mmap_state.size.os.used -= (SZ); \ + } while (0) + + +static void +add_free_desc_area(char *start, char *end) +{ + ERTS_MMAP_ASSERT(end == (void *) 0 || end > start); + if (sizeof(ErtsFreeSegDesc) <= ((UWord) end) - ((UWord) start)) { + UWord no; + ErtsFreeSegDesc *prev_desc, *desc; + char *desc_end; + + no = 1; + prev_desc = (ErtsFreeSegDesc *) start; + prev_desc->start = mmap_state.desc.free_list; + desc = (ErtsFreeSegDesc *) (start + sizeof(ErtsFreeSegDesc)); + desc_end = start + 2*sizeof(ErtsFreeSegDesc); + + while (desc_end <= end) { + desc->start = (char *) prev_desc; + prev_desc = desc; + desc = (ErtsFreeSegDesc *) desc_end; + desc_end += sizeof(ErtsFreeSegDesc); + no++; + } + mmap_state.desc.free_list = (char *) prev_desc; + mmap_state.no.free_seg_descs += no; + } +} + +static ErtsFreeSegDesc * +add_unused_free_desc_area(void) +{ + char *ptr; + if (!mmap_state.desc.unused_start) + return NULL; + + ERTS_MMAP_ASSERT(mmap_state.desc.unused_end); + ERTS_MMAP_ASSERT(ERTS_PAGEALIGNED_SIZE + <= mmap_state.desc.unused_end - mmap_state.desc.unused_start); + + ptr = mmap_state.desc.unused_start + ERTS_PAGEALIGNED_SIZE; + add_free_desc_area(mmap_state.desc.unused_start, ptr); + + if ((mmap_state.desc.unused_end - ptr) >= ERTS_PAGEALIGNED_SIZE) + mmap_state.desc.unused_start = ptr; + else + mmap_state.desc.unused_end = mmap_state.desc.unused_start = NULL; + + ERTS_MMAP_ASSERT(mmap_state.desc.free_list); + return (ErtsFreeSegDesc *) mmap_state.desc.free_list; +} + +static ERTS_INLINE ErtsFreeSegDesc * +alloc_desc(void) +{ + ErtsFreeSegDesc *res; + res = (ErtsFreeSegDesc *) mmap_state.desc.free_list; + if (!res) { + res = add_unused_free_desc_area(); + if (!res) + return NULL; + } + mmap_state.desc.free_list = res->start; + ASSERT(mmap_state.no.free_segs.curr < mmap_state.no.free_seg_descs); + mmap_state.no.free_segs.curr++; + if (mmap_state.no.free_segs.max < mmap_state.no.free_segs.curr) + mmap_state.no.free_segs.max = mmap_state.no.free_segs.curr; + return res; +} + +static ERTS_INLINE void +free_desc(ErtsFreeSegDesc *desc) +{ + desc->start = mmap_state.desc.free_list; + mmap_state.desc.free_list = (char *) desc; + ERTS_MMAP_ASSERT(mmap_state.no.free_segs.curr > 0); + mmap_state.no.free_segs.curr--; +} + +static ERTS_INLINE ErtsFreeSegDesc* anode_to_desc(RBTNode* anode) +{ + return (ErtsFreeSegDesc*) ((char*)anode - offsetof(ErtsFreeSegDesc, anode)); +} + +static ERTS_INLINE ErtsFreeSegDesc* snode_to_desc(RBTNode* snode) +{ + return (ErtsFreeSegDesc*) ((char*)snode - offsetof(ErtsFreeSegDesc, snode)); +} + +static ERTS_INLINE ErtsFreeSegDesc* node_to_desc(enum SortOrder order, RBTNode* node) +{ + return order==ADDR_ORDER ? anode_to_desc(node) : snode_to_desc(node); +} + +static ERTS_INLINE SWord usable_size(enum SortOrder order, + ErtsFreeSegDesc* desc) +{ + return ((order == SA_SZ_ADDR_ORDER) ? + ERTS_SUPERALIGNED_FLOOR(desc->end) - ERTS_SUPERALIGNED_CEILING(desc->start) + : desc->end - desc->start); +} + +#ifdef HARD_DEBUG +static ERTS_INLINE SWord cmp_nodes(enum SortOrder order, + RBTNode* lhs, RBTNode* rhs) +{ + ErtsFreeSegDesc* ldesc = node_to_desc(order, lhs); + ErtsFreeSegDesc* rdesc = node_to_desc(order, rhs); + RBT_ASSERT(lhs != rhs); + if (order != ADDR_ORDER) { + SWord diff = usable_size(order, ldesc) - usable_size(order, rdesc); + if (diff) return diff; + } + if (order != SZ_REVERSE_ADDR_ORDER) { + return (char*)ldesc->start - (char*)rdesc->start; + } + else { + return (char*)rdesc->start - (char*)ldesc->start; + } +} +#endif /* HARD_DEBUG */ + +static ERTS_INLINE SWord cmp_with_node(enum SortOrder order, + SWord sz, char* addr, RBTNode* rhs) +{ + ErtsFreeSegDesc* rdesc; + if (order != ADDR_ORDER) { + SWord diff; + rdesc = snode_to_desc(rhs); + diff = sz - usable_size(order, rdesc); + if (diff) return diff; + } + else + rdesc = anode_to_desc(rhs); + + if (order != SZ_REVERSE_ADDR_ORDER) + return addr - (char*)rdesc->start; + else + return (char*)rdesc->start - addr; +} + + +static ERTS_INLINE void +left_rotate(RBTNode **root, RBTNode *x) +{ + RBTNode *y = x->right; + x->right = y->left; + if (y->left) + set_parent(y->left, x); + set_parent(y, parent(x)); + if (!parent(y)) { + RBT_ASSERT(*root == x); + *root = y; + } + else if (x == parent(x)->left) + parent(x)->left = y; + else { + RBT_ASSERT(x == parent(x)->right); + parent(x)->right = y; + } + y->left = x; + set_parent(x, y); +} + +static ERTS_INLINE void +right_rotate(RBTNode **root, RBTNode *x) +{ + RBTNode *y = x->left; + x->left = y->right; + if (y->right) + set_parent(y->right, x); + set_parent(y, parent(x)); + if (!parent(y)) { + RBT_ASSERT(*root == x); + *root = y; + } + else if (x == parent(x)->right) + parent(x)->right = y; + else { + RBT_ASSERT(x == parent(x)->left); + parent(x)->left = y; + } + y->right = x; + set_parent(x, y); +} + +/* + * Replace node x with node y + * NOTE: segment descriptor of y is not changed + */ +static ERTS_INLINE void +replace(RBTNode **root, RBTNode *x, RBTNode *y) +{ + + if (!parent(x)) { + RBT_ASSERT(*root == x); + *root = y; + } + else if (x == parent(x)->left) + parent(x)->left = y; + else { + RBT_ASSERT(x == parent(x)->right); + parent(x)->right = y; + } + if (x->left) { + RBT_ASSERT(parent(x->left) == x); + set_parent(x->left, y); + } + if (x->right) { + RBT_ASSERT(parent(x->right) == x); + set_parent(x->right, y); + } + + y->parent_and_color = x->parent_and_color; + y->right = x->right; + y->left = x->left; +} + +static void +tree_insert_fixup(RBTNode** root, RBTNode *node) +{ + RBTNode *x = node, *y, *papa_x, *granpa_x; + + /* + * Rearrange the tree so that it satisfies the Red-Black Tree properties + */ + + papa_x = parent(x); + RBT_ASSERT(x != *root && IS_RED(papa_x)); + do { + + /* + * x and its parent are both red. Move the red pair up the tree + * until we get to the root or until we can separate them. + */ + + granpa_x = parent(papa_x); + RBT_ASSERT(IS_RED(x)); + RBT_ASSERT(IS_BLACK(granpa_x)); + RBT_ASSERT(granpa_x); + + if (papa_x == granpa_x->left) { + y = granpa_x->right; + if (IS_RED(y)) { + SET_BLACK(y); + SET_BLACK(papa_x); + SET_RED(granpa_x); + x = granpa_x; + } + else { + + if (x == papa_x->right) { + left_rotate(root, papa_x); + papa_x = x; + x = papa_x->left; + } + + RBT_ASSERT(x == granpa_x->left->left); + RBT_ASSERT(IS_RED(x)); + RBT_ASSERT(IS_RED(papa_x)); + RBT_ASSERT(IS_BLACK(granpa_x)); + RBT_ASSERT(IS_BLACK(y)); + + SET_BLACK(papa_x); + SET_RED(granpa_x); + right_rotate(root, granpa_x); + + RBT_ASSERT(x == parent(x)->left); + RBT_ASSERT(IS_RED(x)); + RBT_ASSERT(IS_RED(parent(x)->right)); + RBT_ASSERT(IS_BLACK(parent(x))); + break; + } + } + else { + RBT_ASSERT(papa_x == granpa_x->right); + y = granpa_x->left; + if (IS_RED(y)) { + SET_BLACK(y); + SET_BLACK(papa_x); + SET_RED(granpa_x); + x = granpa_x; + } + else { + + if (x == papa_x->left) { + right_rotate(root, papa_x); + papa_x = x; + x = papa_x->right; + } + + RBT_ASSERT(x == granpa_x->right->right); + RBT_ASSERT(IS_RED(x)); + RBT_ASSERT(IS_RED(papa_x)); + RBT_ASSERT(IS_BLACK(granpa_x)); + RBT_ASSERT(IS_BLACK(y)); + + SET_BLACK(papa_x); + SET_RED(granpa_x); + left_rotate(root, granpa_x); + + RBT_ASSERT(x == parent(x)->right); + RBT_ASSERT(IS_RED(x)); + RBT_ASSERT(IS_RED(parent(x)->left)); + RBT_ASSERT(IS_BLACK(parent(x))); + break; + } + } + } while (x != *root && (papa_x=parent(x), IS_RED(papa_x))); + + SET_BLACK(*root); +} + +static void +rbt_delete(RBTree* tree, RBTNode* del) +{ + Uint spliced_is_black; + RBTNode *x, *y, *z = del, *papa_y; + RBTNode null_x; /* null_x is used to get the fixup started when we + splice out a node without children. */ + + HARD_CHECK_IS_MEMBER(tree->root, del); + HARD_CHECK_TREE(tree, 0); + + null_x.parent_and_color = parent_and_color(NULL, !RED_FLG); + + /* Remove node from tree... */ + + /* Find node to splice out */ + if (!z->left || !z->right) + y = z; + else + /* Set y to z:s successor */ + for(y = z->right; y->left; y = y->left); + /* splice out y */ + x = y->left ? y->left : y->right; + spliced_is_black = IS_BLACK(y); + papa_y = parent(y); + if (x) { + set_parent(x, papa_y); + } + else if (spliced_is_black) { + x = &null_x; + x->right = x->left = NULL; + x->parent_and_color = parent_and_color(papa_y, !RED_FLG); + y->left = x; + } + + if (!papa_y) { + RBT_ASSERT(tree->root == y); + tree->root = x; + } + else { + if (y == papa_y->left) { + papa_y->left = x; + } + else { + RBT_ASSERT(y == papa_y->right); + papa_y->right = x; + } + } + if (y != z) { + /* We spliced out the successor of z; replace z by the successor */ + RBT_ASSERT(z != &null_x); + replace(&tree->root, z, y); + } + + if (spliced_is_black) { + RBTNode* papa_x; + /* We removed a black node which makes the resulting tree + violate the Red-Black Tree properties. Fixup tree... */ + + papa_x = parent(x); + while (IS_BLACK(x) && papa_x) { + + /* + * x has an "extra black" which we move up the tree + * until we reach the root or until we can get rid of it. + * + * y is the sibbling of x + */ + + if (x == papa_x->left) { + y = papa_x->right; + RBT_ASSERT(y); + if (IS_RED(y)) { + RBT_ASSERT(y->right); + RBT_ASSERT(y->left); + SET_BLACK(y); + RBT_ASSERT(IS_BLACK(papa_x)); + SET_RED(papa_x); + left_rotate(&tree->root, papa_x); + RBT_ASSERT(papa_x == parent(x)); + y = papa_x->right; + } + RBT_ASSERT(y); + RBT_ASSERT(IS_BLACK(y)); + if (IS_BLACK(y->left) && IS_BLACK(y->right)) { + SET_RED(y); + } + else { + if (IS_BLACK(y->right)) { + SET_BLACK(y->left); + SET_RED(y); + right_rotate(&tree->root, y); + RBT_ASSERT(papa_x == parent(x)); + y = papa_x->right; + } + RBT_ASSERT(y); + if (IS_RED(papa_x)) { + + SET_BLACK(papa_x); + SET_RED(y); + } + RBT_ASSERT(y->right); + SET_BLACK(y->right); + left_rotate(&tree->root, papa_x); + x = tree->root; + break; + } + } + else { + RBT_ASSERT(x == papa_x->right); + y = papa_x->left; + RBT_ASSERT(y); + if (IS_RED(y)) { + RBT_ASSERT(y->right); + RBT_ASSERT(y->left); + SET_BLACK(y); + RBT_ASSERT(IS_BLACK(papa_x)); + SET_RED(papa_x); + right_rotate(&tree->root, papa_x); + RBT_ASSERT(papa_x == parent(x)); + y = papa_x->left; + } + RBT_ASSERT(y); + RBT_ASSERT(IS_BLACK(y)); + if (IS_BLACK(y->right) && IS_BLACK(y->left)) { + SET_RED(y); + } + else { + if (IS_BLACK(y->left)) { + SET_BLACK(y->right); + SET_RED(y); + left_rotate(&tree->root, y); + RBT_ASSERT(papa_x == parent(x)); + y = papa_x->left; + } + RBT_ASSERT(y); + if (IS_RED(papa_x)) { + SET_BLACK(papa_x); + SET_RED(y); + } + RBT_ASSERT(y->left); + SET_BLACK(y->left); + right_rotate(&tree->root, papa_x); + x = tree->root; + break; + } + } + x = papa_x; + papa_x = parent(x); + } + SET_BLACK(x); + + papa_x = parent(&null_x); + if (papa_x) { + if (papa_x->left == &null_x) + papa_x->left = NULL; + else { + RBT_ASSERT(papa_x->right == &null_x); + papa_x->right = NULL; + } + RBT_ASSERT(!null_x.left); + RBT_ASSERT(!null_x.right); + } + else if (tree->root == &null_x) { + tree->root = NULL; + RBT_ASSERT(!null_x.left); + RBT_ASSERT(!null_x.right); + } + } + HARD_CHECK_TREE(tree, 0); +} + + +static void +rbt_insert(RBTree* tree, RBTNode* node) +{ +#ifdef RBT_DEBUG + ErtsFreeSegDesc *dbg_under=NULL, *dbg_over=NULL; +#endif + ErtsFreeSegDesc* desc = node_to_desc(tree->order, node); + char* seg_addr = desc->start; + SWord seg_sz = desc->end - desc->start; + + HARD_CHECK_TREE(tree, 0); + + node->left = NULL; + node->right = NULL; + + if (!tree->root) { + node->parent_and_color = parent_and_color(NULL, !RED_FLG); + tree->root = node; + } + else { + RBTNode *x = tree->root; + while (1) { + SWord diff = cmp_with_node(tree->order, seg_sz, seg_addr, x); + if (diff < 0) { + IF_RBT_DEBUG(dbg_over = node_to_desc(tree->order, x)); + if (!x->left) { + node->parent_and_color = parent_and_color(x, RED_FLG); + x->left = node; + break; + } + x = x->left; + } + else { + RBT_ASSERT(diff > 0); + IF_RBT_DEBUG(dbg_under = node_to_desc(tree->order, x)); + if (!x->right) { + node->parent_and_color = parent_and_color(x, RED_FLG); + x->right = node; + break; + } + x = x->right; + } + } + + RBT_ASSERT(parent(node)); +#ifdef RBT_DEBUG + if (tree->order == ADDR_ORDER) { + RBT_ASSERT(!dbg_under || dbg_under->end < desc->start); + RBT_ASSERT(!dbg_over || dbg_over->start > desc->end); + } +#endif + RBT_ASSERT(IS_RED(node)); + if (IS_RED(parent(node))) + tree_insert_fixup(&tree->root, node); + } + HARD_CHECK_TREE(tree, 0); +} + +/* + * Traverse tree in (reverse) sorting order + */ +static void +rbt_foreach_node(RBTree* tree, + void (*fn)(RBTNode*,void*), + void* arg, int reverse) +{ +#ifdef HARD_DEBUG + Sint blacks = -1; + Sint curr_blacks = 1; + Uint depth = 1; + Uint max_depth = 0; + Uint node_cnt = 0; +#endif + enum { RECURSE_LEFT, DO_NODE, RECURSE_RIGHT, RETURN_TO_PARENT }state; + RBTNode *x = tree->root; + + RBT_ASSERT(!x || !parent(x)); + + state = reverse ? RECURSE_RIGHT : RECURSE_LEFT; + while (x) { + switch (state) { + case RECURSE_LEFT: + if (x->left) { + RBT_ASSERT(parent(x->left) == x); + #ifdef HARD_DEBUG + ++depth; + if (IS_BLACK(x->left)) + curr_blacks++; + #endif + x = x->left; + state = reverse ? RECURSE_RIGHT : RECURSE_LEFT; + } + else { + #ifdef HARD_DEBUG + if (blacks < 0) + blacks = curr_blacks; + RBT_ASSERT(blacks == curr_blacks); + #endif + state = reverse ? RETURN_TO_PARENT : DO_NODE; + } + break; + + case DO_NODE: + #ifdef HARD_DEBUG + ++node_cnt; + if (depth > max_depth) + max_depth = depth; + #endif + (*fn) (x, arg); /* Do it! */ + state = reverse ? RECURSE_LEFT : RECURSE_RIGHT; + break; + + case RECURSE_RIGHT: + if (x->right) { + RBT_ASSERT(parent(x->right) == x); + #ifdef HARD_DEBUG + ++depth; + if (IS_BLACK(x->right)) + curr_blacks++; + #endif + x = x->right; + state = reverse ? RECURSE_RIGHT : RECURSE_LEFT; + } + else { + #ifdef HARD_DEBUG + if (blacks < 0) + blacks = curr_blacks; + RBT_ASSERT(blacks == curr_blacks); + #endif + state = reverse ? DO_NODE : RETURN_TO_PARENT; + } + break; + + case RETURN_TO_PARENT: + #ifdef HARD_DEBUG + if (IS_BLACK(x)) + curr_blacks--; + --depth; + #endif + if (parent(x)) { + if (x == parent(x)->left) { + state = reverse ? RETURN_TO_PARENT : DO_NODE; + } + else { + RBT_ASSERT(x == parent(x)->right); + state = reverse ? DO_NODE : RETURN_TO_PARENT; + } + } + x = parent(x); + break; + } + } +#ifdef HARD_DEBUG + RBT_ASSERT(depth == 0 || (!tree->root && depth==1)); + RBT_ASSERT(curr_blacks == 0); + RBT_ASSERT((1 << (max_depth/2)) <= node_cnt); +#endif +} + +#if defined(RBT_DEBUG) || defined(HARD_DEBUG_MSEG) +static RBTNode* rbt_prev_node(RBTNode* node) +{ + RBTNode* x; + if (node->left) { + for (x=node->left; x->right; x=x->right) + ; + return x; + } + for (x=node; parent(x); x=parent(x)) { + if (parent(x)->right == x) + return parent(x); + } + return NULL; +} +static RBTNode* rbt_next_node(RBTNode* node) +{ + RBTNode* x; + if (node->right) { + for (x=node->right; x->left; x=x->left) + ; + return x; + } + for (x=node; parent(x); x=parent(x)) { + if (parent(x)->left == x) + return parent(x); + } + return NULL; +} +#endif /* RBT_DEBUG || HARD_DEBUG_MSEG */ + + +/* The API to keep track of a bunch of separated (free) segments + (non-overlapping and non-adjacent). + */ +static void init_free_seg_map(ErtsFreeSegMap*, enum SortOrder); +static void adjacent_free_seg(ErtsFreeSegMap*, char* start, char* end, + ErtsFreeSegDesc** under, ErtsFreeSegDesc** over); +static void insert_free_seg(ErtsFreeSegMap*, ErtsFreeSegDesc*, char* start, char* end); +static void resize_free_seg(ErtsFreeSegMap*, ErtsFreeSegDesc*, char* start, char* end); +static void delete_free_seg(ErtsFreeSegMap*, ErtsFreeSegDesc*); +static ErtsFreeSegDesc* lookup_free_seg(ErtsFreeSegMap*, SWord sz); + + +static void init_free_seg_map(ErtsFreeSegMap* map, enum SortOrder order) +{ + map->atree.root = NULL; + map->atree.order = ADDR_ORDER; + map->stree.root = NULL; + map->stree.order = order; + map->nseg = 0; +} + +/* Lookup directly adjacent free segments to the given area [start->end]. + * The given area must not contain any free segments. + */ +static void adjacent_free_seg(ErtsFreeSegMap* map, char* start, char* end, + ErtsFreeSegDesc** under, ErtsFreeSegDesc** over) +{ + RBTNode* x = map->atree.root; + + *under = NULL; + *over = NULL; + while (x) { + if (start < anode_to_desc(x)->start) { + RBT_ASSERT(end <= anode_to_desc(x)->start); + if (end == anode_to_desc(x)->start) { + RBT_ASSERT(!*over); + *over = anode_to_desc(x); + } + x = x->left; + } + else { + RBT_ASSERT(start >= anode_to_desc(x)->end); + if (start == anode_to_desc(x)->end) { + RBT_ASSERT(!*under); + *under = anode_to_desc(x); + } + x = x->right; + } + } +} + +/* Initialize 'desc' and insert as new free segment [start->end]. + * The new segment must not contain or be adjacent to any free segment in 'map'. + */ +static void insert_free_seg(ErtsFreeSegMap* map, ErtsFreeSegDesc* desc, + char* start, char* end) +{ + desc->start = start; + desc->end = end; + rbt_insert(&map->atree, &desc->anode); + rbt_insert(&map->stree, &desc->snode); + map->nseg++; +} + +/* Resize existing free segment 'desc' to [start->end]. + * The new segment location must overlap the old location and + * it must not contain or be adjacent to any other free segment in 'map'. + */ +static void resize_free_seg(ErtsFreeSegMap* map, ErtsFreeSegDesc* desc, + char* start, char* end) +{ +#ifdef RBT_DEBUG + RBTNode* prev = rbt_prev_node(&desc->anode); + RBTNode* next = rbt_next_node(&desc->anode); + RBT_ASSERT(!prev || anode_to_desc(prev)->end < start); + RBT_ASSERT(!next || anode_to_desc(next)->start > end); +#endif + rbt_delete(&map->stree, &desc->snode); + desc->start = start; + desc->end = end; + rbt_insert(&map->stree, &desc->snode); +} + +/* Delete existing free segment 'desc' from 'map'. + */ +static void delete_free_seg(ErtsFreeSegMap* map, ErtsFreeSegDesc* desc) +{ + rbt_delete(&map->atree, &desc->anode); + rbt_delete(&map->stree, &desc->snode); + map->nseg--; +} + +/* Lookup a free segment in 'map' with a size of at least 'need_sz' usable bytes. + */ +static ErtsFreeSegDesc* lookup_free_seg(ErtsFreeSegMap* map, SWord need_sz) +{ + RBTNode* x = map->stree.root; + ErtsFreeSegDesc* best_desc = NULL; + const enum SortOrder order = map->stree.order; + + while (x) { + ErtsFreeSegDesc* desc = snode_to_desc(x); + SWord seg_sz = usable_size(order, desc); + + if (seg_sz < need_sz) { + x = x->right; + } + else { + best_desc = desc; + x = x->left; + } + } + return best_desc; +} + +struct build_arg_t +{ + Process* p; + Eterm* hp; + Eterm acc; +}; + +static void build_free_seg_tuple(RBTNode* node, void* arg) +{ + struct build_arg_t* a = (struct build_arg_t*)arg; + ErtsFreeSegDesc* desc = anode_to_desc(node); + Eterm start= erts_bld_uword(&a->hp, NULL, (UWord)desc->start); + Eterm end = erts_bld_uword(&a->hp, NULL, (UWord)desc->end); + Eterm tpl = TUPLE2(a->hp, start, end); + + a->hp += 3; + a->acc = CONS(a->hp, tpl, a->acc); + a->hp += 2; +} + +static +Eterm build_free_seg_list(Process* p, ErtsFreeSegMap* map) +{ + struct build_arg_t barg; + Eterm* hp_end; + const Uint may_need = map->nseg * (2 + 3 + 2*2); /* cons + tuple + bigs */ + + barg.p = p; + barg.hp = HAlloc(p, may_need); + hp_end = barg.hp + may_need; + barg.acc = NIL; + rbt_foreach_node(&map->atree, build_free_seg_tuple, &barg, 1); + + RBT_ASSERT(barg.hp <= hp_end); + HRelease(p, hp_end, barg.hp); + return barg.acc; +} + +#if ERTS_HAVE_OS_MMAP +/* Implementation of os_mmap()/os_munmap()/os_mremap()... */ + +#if HAVE_MMAP +# define ERTS_MMAP_PROT (PROT_READ|PROT_WRITE) +# if defined(MAP_ANONYMOUS) +# define ERTS_MMAP_FLAGS (MAP_ANON|MAP_PRIVATE) +# define ERTS_MMAP_FD (-1) +# elif defined(MAP_ANON) +# define ERTS_MMAP_FLAGS (MAP_ANON|MAP_PRIVATE) +# define ERTS_MMAP_FD (-1) +# else +# define ERTS_MMAP_FLAGS (MAP_PRIVATE) +# define ERTS_MMAP_FD mmap_state.mmap_fd +# endif +#endif + +static ERTS_INLINE void * +os_mmap(void *hint_ptr, UWord size, int try_superalign) +{ +#if HAVE_MMAP + void *res; +#ifdef MAP_ALIGN + if (try_superalign) + res = mmap((void *) ERTS_SUPERALIGNED_SIZE, size, ERTS_MMAP_PROT, + ERTS_MMAP_FLAGS|MAP_ALIGN, ERTS_MMAP_FD, 0); + else +#endif + res = mmap((void *) hint_ptr, size, ERTS_MMAP_PROT, + ERTS_MMAP_FLAGS, ERTS_MMAP_FD, 0); + if (res == MAP_FAILED) + return NULL; + return res; +#elif HAVE_VIRTUALALLOC + return (void *) VirtualAlloc(NULL, (SIZE_T) size, + MEM_COMMIT|MEM_RESERVE, PAGE_READWRITE); +#else +# error "missing mmap() or similar" +#endif +} + +static ERTS_INLINE void +os_munmap(void *ptr, UWord size) +{ +#if HAVE_MMAP +#ifdef ERTS_MMAP_DEBUG + int res = +#endif + munmap(ptr, size); + ERTS_MMAP_ASSERT(res == 0); +#elif HAVE_VIRTUALALLOC +#ifdef DEBUG + BOOL res = +#endif + VirtualFree((LPVOID) ptr, (SIZE_T) 0, MEM_RELEASE); + ERTS_MMAP_ASSERT(res != 0); +#else +# error "missing munmap() or similar" +#endif +} + +#ifdef ERTS_HAVE_OS_MREMAP +# if HAVE_MREMAP +# if defined(__NetBSD__) +# define ERTS_MREMAP_FLAGS (0) +# else +# define ERTS_MREMAP_FLAGS (MREMAP_MAYMOVE) +# endif +# endif +static ERTS_INLINE void * +os_mremap(void *ptr, UWord old_size, UWord new_size, int try_superalign) +{ + void *new_seg; +#if HAVE_MREMAP + new_seg = mremap(ptr, (size_t) old_size, +# if defined(__NetBSD__) + NULL, +# endif + (size_t) new_size, ERTS_MREMAP_FLAGS); + if (new_seg == (void *) MAP_FAILED) + return NULL; + return new_seg; +#else +# error "missing mremap() or similar" +#endif +} +#endif + +#ifdef ERTS_HAVE_OS_PHYSICAL_MEMORY_RESERVATION +#if HAVE_MMAP + +#define ERTS_MMAP_RESERVE_PROT (ERTS_MMAP_PROT) +#define ERTS_MMAP_RESERVE_FLAGS (ERTS_MMAP_FLAGS|MAP_FIXED) +#define ERTS_MMAP_UNRESERVE_PROT (PROT_NONE) +#define ERTS_MMAP_UNRESERVE_FLAGS (ERTS_MMAP_FLAGS|MAP_NORESERVE|MAP_FIXED) +#define ERTS_MMAP_VIRTUAL_PROT (PROT_NONE) +#define ERTS_MMAP_VIRTUAL_FLAGS (ERTS_MMAP_FLAGS|MAP_NORESERVE) + +static int +os_reserve_physical(char *ptr, UWord size) +{ + void *res = mmap((void *) ptr, (size_t) size, ERTS_MMAP_RESERVE_PROT, + ERTS_MMAP_RESERVE_FLAGS, ERTS_MMAP_FD, 0); + if (res == (void *) MAP_FAILED) + return 0; + return 1; +} + +static void +os_unreserve_physical(char *ptr, UWord size) +{ + void *res = mmap((void *) ptr, (size_t) size, ERTS_MMAP_UNRESERVE_PROT, + ERTS_MMAP_UNRESERVE_FLAGS, ERTS_MMAP_FD, 0); + if (res == (void *) MAP_FAILED) + erl_exit(ERTS_ABORT_EXIT, "Failed to unreserve memory"); +} + +static void * +os_mmap_virtual(char *ptr, UWord size) +{ + void *res = mmap((void *) ptr, (size_t) size, ERTS_MMAP_VIRTUAL_PROT, + ERTS_MMAP_VIRTUAL_FLAGS, ERTS_MMAP_FD, 0); + if (res == (void *) MAP_FAILED) + return NULL; + return res; +} + +#else +#error "Missing reserve/unreserve physical memory implementation" +#endif +#endif /* ERTS_HAVE_OS_RESERVE_PHYSICAL_MEMORY */ + +#endif /* ERTS_HAVE_OS_MMAP */ + +static int reserve_noop(char *ptr, UWord size) +{ +#ifdef ERTS_MMAP_DEBUG_FILL_AREAS + Uint32 *uip, *end = (Uint32 *) (ptr + size); + + for (uip = (Uint32 *) ptr; uip < end; uip++) + ERTS_MMAP_ASSERT(*uip == (Uint32) 0xdeadbeef); + for (uip = (Uint32 *) ptr; uip < end; uip++) + *uip = (Uint32) 0xfeedfeed; +#endif + return 1; +} + +static void unreserve_noop(char *ptr, UWord size) +{ +#ifdef ERTS_MMAP_DEBUG_FILL_AREAS + Uint32 *uip, *end = (Uint32 *) (ptr + size); + + for (uip = (Uint32 *) ptr; uip < end; uip++) + *uip = (Uint32) 0xdeadbeef; +#endif +} + +static UWord +alloc_desc_insert_free_seg(ErtsFreeSegMap *map, char* start, char* end) +{ + char *ptr; + ErtsFreeSegMap *da_map; + ErtsFreeSegDesc *desc = alloc_desc(); + if (desc) { + insert_free_seg(map, desc, start, end); + return 0; + } + + /* + * Ahh; ran out of free segment descriptors. + * + * First try to map a new page... + */ + +#if ERTS_HAVE_OS_MMAP + if (!mmap_state.no_os_mmap) { + ptr = os_mmap(mmap_state.desc.new_area_hint, ERTS_PAGEALIGNED_SIZE, 0); + if (ptr) { + mmap_state.desc.new_area_hint = ptr+ERTS_PAGEALIGNED_SIZE; + ERTS_MMAP_SIZE_OS_INC(ERTS_PAGEALIGNED_SIZE); + add_free_desc_area(ptr, ptr+ERTS_PAGEALIGNED_SIZE); + desc = alloc_desc(); + ERTS_MMAP_ASSERT(desc); + insert_free_seg(map, desc, start, end); + return 0; + } + } +#endif + + /* + * ...then try to find a good place in the supercarrier... + */ + da_map = &mmap_state.sua.map; + desc = lookup_free_seg(da_map, ERTS_PAGEALIGNED_SIZE); + if (desc) { + if (mmap_state.reserve_physical(desc->start, ERTS_PAGEALIGNED_SIZE)) + ERTS_MMAP_SIZE_SC_SUA_INC(ERTS_PAGEALIGNED_SIZE); + else + desc = NULL; + + } + else { + da_map = &mmap_state.sa.map; + desc = lookup_free_seg(da_map, ERTS_PAGEALIGNED_SIZE); + if (desc) { + if (mmap_state.reserve_physical(desc->start, ERTS_PAGEALIGNED_SIZE)) + ERTS_MMAP_SIZE_SC_SA_INC(ERTS_PAGEALIGNED_SIZE); + else + desc = NULL; + } + } + if (desc) { + char *da_end = desc->start + ERTS_PAGEALIGNED_SIZE; + add_free_desc_area(desc->start, da_end); + if (da_end != desc->end) + resize_free_seg(da_map, desc, da_end, desc->end); + else { + delete_free_seg(da_map, desc); + free_desc(desc); + } + + desc = alloc_desc(); + ERTS_MMAP_ASSERT(desc); + insert_free_seg(map, desc, start, end); + return 0; + } + + /* + * ... and then as last resort use the first page of the + * free segment we are trying to insert for free descriptors. + */ + ptr = start + ERTS_PAGEALIGNED_SIZE; + ERTS_MMAP_ASSERT(ptr <= end); + + add_free_desc_area(start, ptr); + + if (ptr != end) { + desc = alloc_desc(); + ERTS_MMAP_ASSERT(desc); + insert_free_seg(map, desc, ptr, end); + } + + return ERTS_PAGEALIGNED_SIZE; +} + +void * +erts_mmap(Uint32 flags, UWord *sizep) +{ + char *seg; + UWord asize = ERTS_PAGEALIGNED_CEILING(*sizep); + + /* Map in premapped supercarrier */ + if (mmap_state.supercarrier && !(ERTS_MMAPFLG_OS_ONLY & flags)) { + char *end; + ErtsFreeSegDesc *desc; + Uint32 superaligned = (ERTS_MMAPFLG_SUPERALIGNED & flags); + + erts_smp_mtx_lock(&mmap_state.mtx); + + ERTS_MMAP_OP_START(*sizep); + + if (!superaligned) { + desc = lookup_free_seg(&mmap_state.sua.map, asize); + if (desc) { + seg = desc->start; + end = seg+asize; + if (!mmap_state.reserve_physical(seg, asize)) + goto supercarrier_reserve_failure; + if (desc->end == end) { + delete_free_seg(&mmap_state.sua.map, desc); + free_desc(desc); + } + else { + ERTS_MMAP_ASSERT(end < desc->end); + resize_free_seg(&mmap_state.sua.map, desc, end, desc->end); + } + ERTS_MMAP_SIZE_SC_SUA_INC(asize); + goto supercarrier_success; + } + + if (asize <= mmap_state.sua.bot - mmap_state.sa.top) { + if (!mmap_state.reserve_physical(mmap_state.sua.bot - asize, + asize)) + goto supercarrier_reserve_failure; + mmap_state.sua.bot -= asize; + seg = mmap_state.sua.bot; + ERTS_MMAP_SIZE_SC_SUA_INC(asize); + goto supercarrier_success; + } + } + + asize = ERTS_SUPERALIGNED_CEILING(asize); + + desc = lookup_free_seg(&mmap_state.sa.map, asize); + if (desc) { + char *start = seg = desc->start; + seg = (char *) ERTS_SUPERALIGNED_CEILING(seg); + end = seg+asize; + if (!mmap_state.reserve_physical(start, (UWord) (end - start))) + goto supercarrier_reserve_failure; + ERTS_MMAP_SIZE_SC_SA_INC(asize); + if (desc->end == end) { + if (start != seg) + resize_free_seg(&mmap_state.sa.map, desc, start, seg); + else { + delete_free_seg(&mmap_state.sa.map, desc); + free_desc(desc); + } + } + else { + ERTS_MMAP_ASSERT(end < desc->end); + resize_free_seg(&mmap_state.sa.map, desc, end, desc->end); + if (start != seg) { + UWord ad_sz; + ad_sz = alloc_desc_insert_free_seg(&mmap_state.sua.map, + start, seg); + start += ad_sz; + if (start != seg) + mmap_state.unreserve_physical(start, (UWord) (seg - start)); + } + } + goto supercarrier_success; + } + + if (superaligned) { + char *start = mmap_state.sa.top; + seg = (char *) ERTS_SUPERALIGNED_CEILING(start); + + if (asize + (seg - start) <= mmap_state.sua.bot - start) { + end = seg + asize; + if (!mmap_state.reserve_physical(start, (UWord) (end - start))) + goto supercarrier_reserve_failure; + mmap_state.sa.top = end; + ERTS_MMAP_SIZE_SC_SA_INC(asize); + if (start != seg) { + UWord ad_sz; + ad_sz = alloc_desc_insert_free_seg(&mmap_state.sua.map, + start, seg); + start += ad_sz; + if (start != seg) + mmap_state.unreserve_physical(start, (UWord) (seg - start)); + } + goto supercarrier_success; + } + + desc = lookup_free_seg(&mmap_state.sua.map, asize + ERTS_SUPERALIGNED_SIZE); + if (desc) { + char *org_start = desc->start; + char *org_end = desc->end; + + seg = (char *) ERTS_SUPERALIGNED_CEILING(org_start); + end = seg + asize; + if (!mmap_state.reserve_physical(seg, (UWord) (org_end - seg))) + goto supercarrier_reserve_failure; + ERTS_MMAP_SIZE_SC_SUA_INC(asize); + if (org_start != seg) { + ERTS_MMAP_ASSERT(org_start < seg); + resize_free_seg(&mmap_state.sua.map, desc, org_start, seg); + desc = NULL; + } + if (end != org_end) { + UWord ad_sz = 0; + ERTS_MMAP_ASSERT(end < org_end); + if (desc) + resize_free_seg(&mmap_state.sua.map, desc, end, org_end); + else + ad_sz = alloc_desc_insert_free_seg(&mmap_state.sua.map, + end, org_end); + end += ad_sz; + if (end != org_end) + mmap_state.unreserve_physical(end, + (UWord) (org_end - end)); + } + goto supercarrier_success; + } + } + + ERTS_MMAP_OP_ABORT(); + erts_smp_mtx_unlock(&mmap_state.mtx); + } + +#if ERTS_HAVE_OS_MMAP + /* Map using OS primitives */ + if (!(ERTS_MMAPFLG_SUPERCARRIER_ONLY & flags) && !mmap_state.no_os_mmap) { + if (!(ERTS_MMAPFLG_SUPERALIGNED & flags)) { + seg = os_mmap(NULL, asize, 0); + if (!seg) + goto failure; + } + else { + asize = ERTS_SUPERALIGNED_CEILING(*sizep); + seg = os_mmap(NULL, asize, 1); + if (!seg) + goto failure; + + if (!ERTS_IS_SUPERALIGNED(seg)) { + char *ptr; + UWord sz; + + os_munmap(seg, asize); + + ptr = os_mmap(NULL, asize + ERTS_SUPERALIGNED_SIZE, 1); + if (!ptr) + goto failure; + + seg = (char *) ERTS_SUPERALIGNED_CEILING(ptr); + sz = (UWord) (seg - ptr); + ERTS_MMAP_ASSERT(sz <= ERTS_SUPERALIGNED_SIZE); + if (sz) + os_munmap(ptr, sz); + sz = ERTS_SUPERALIGNED_SIZE - sz; + if (sz) + os_munmap(seg+asize, sz); + } + } + + ERTS_MMAP_OP_LCK(seg, *sizep, asize); + ERTS_MMAP_SIZE_OS_INC(asize); + *sizep = asize; + return (void *) seg; + } +failure: +#endif + ERTS_MMAP_OP_LCK(NULL, *sizep, 0); + *sizep = 0; + return NULL; + +supercarrier_success: + +#ifdef ERTS_MMAP_DEBUG + if (ERTS_MMAPFLG_SUPERALIGNED & flags) { + ERTS_MMAP_ASSERT(ERTS_IS_SUPERALIGNED(seg)); + ERTS_MMAP_ASSERT(ERTS_IS_SUPERALIGNED(asize)); + } + else { + ERTS_MMAP_ASSERT(ERTS_IS_PAGEALIGNED(seg)); + ERTS_MMAP_ASSERT(ERTS_IS_PAGEALIGNED(asize)); + } +#endif + + ERTS_MMAP_OP_END(seg, asize); + erts_smp_mtx_unlock(&mmap_state.mtx); + + *sizep = asize; + return (void *) seg; + +supercarrier_reserve_failure: + erts_smp_mtx_unlock(&mmap_state.mtx); + *sizep = 0; + return NULL; +} + +void +erts_munmap(Uint32 flags, void *ptr, UWord size) +{ + ERTS_MMAP_ASSERT(ERTS_IS_PAGEALIGNED(ptr)); + ERTS_MMAP_ASSERT(ERTS_IS_PAGEALIGNED(size)); + + if (!ERTS_MMAP_IN_SUPERCARRIER(ptr)) { + ERTS_MMAP_ASSERT(!mmap_state.no_os_mmap); +#if ERTS_HAVE_OS_MMAP + ERTS_MUNMAP_OP_LCK(ptr, size); + ERTS_MMAP_SIZE_OS_DEC(size); + os_munmap(ptr, size); +#endif + } + else { + char *start, *end; + ErtsFreeSegMap *map; + ErtsFreeSegDesc *prev, *next, *desc; + UWord ad_sz = 0; + + ERTS_MMAP_ASSERT(mmap_state.supercarrier); + + start = (char *) ptr; + end = start + size; + + erts_smp_mtx_lock(&mmap_state.mtx); + + ERTS_MUNMAP_OP(ptr, size); + + if (ERTS_MMAP_IN_SUPERALIGNED_AREA(ptr)) { + + map = &mmap_state.sa.map; + adjacent_free_seg(map, start, end, &prev, &next); + + ERTS_MMAP_SIZE_SC_SA_DEC(size); + if (end == mmap_state.sa.top) { + ERTS_MMAP_ASSERT(!next); + if (prev) { + start = prev->start; + delete_free_seg(map, prev); + free_desc(prev); + } + mmap_state.sa.top = start; + goto supercarrier_success; + } + } + else { + map = &mmap_state.sua.map; + adjacent_free_seg(map, start, end, &prev, &next); + + ERTS_MMAP_SIZE_SC_SUA_DEC(size); + if (start == mmap_state.sua.bot) { + ERTS_MMAP_ASSERT(!prev); + if (next) { + end = next->end; + delete_free_seg(map, next); + free_desc(next); + } + mmap_state.sua.bot = end; + goto supercarrier_success; + } + } + + desc = NULL; + + if (next) { + ERTS_MMAP_ASSERT(end < next->end); + end = next->end; + if (prev) { + delete_free_seg(map, next); + free_desc(next); + goto save_prev; + } + desc = next; + } else if (prev) { + save_prev: + ERTS_MMAP_ASSERT(prev->start < start); + start = prev->start; + desc = prev; + } + + if (desc) + resize_free_seg(map, desc, start, end); + else + ad_sz = alloc_desc_insert_free_seg(map, start, end); + + supercarrier_success: { + UWord unres_sz; + + ERTS_MMAP_ASSERT(size >= ad_sz); + unres_sz = size - ad_sz; + if (unres_sz) + mmap_state.unreserve_physical(((char *) ptr) + ad_sz, unres_sz); + + erts_smp_mtx_unlock(&mmap_state.mtx); + } + } +} + +static void * +remap_move(Uint32 flags, void *ptr, UWord old_size, UWord *sizep) +{ + UWord size = *sizep; + void *new_ptr = erts_mmap(flags, &size); + if (!new_ptr) + return NULL; + *sizep = size; + if (old_size < size) + size = old_size; + sys_memcpy(new_ptr, ptr, (size_t) size); + erts_munmap(flags, ptr, old_size); + return new_ptr; +} + +void * +erts_mremap(Uint32 flags, void *ptr, UWord old_size, UWord *sizep) +{ + void *new_ptr; + Uint32 superaligned; + UWord asize; + + ERTS_MMAP_ASSERT(ERTS_IS_PAGEALIGNED(ptr)); + ERTS_MMAP_ASSERT(ERTS_IS_PAGEALIGNED(old_size)); + ERTS_MMAP_ASSERT(sizep && ERTS_IS_PAGEALIGNED(*sizep)); + + if (!ERTS_MMAP_IN_SUPERCARRIER(ptr)) { + + ERTS_MMAP_ASSERT(!mmap_state.no_os_mmap); + + if (!(ERTS_MMAPFLG_OS_ONLY & flags) && mmap_state.supercarrier) { + new_ptr = remap_move(ERTS_MMAPFLG_SUPERCARRIER_ONLY|flags, ptr, + old_size, sizep); + if (new_ptr) + return new_ptr; + } + + if (ERTS_MMAPFLG_SUPERCARRIER_ONLY & flags) { + ERTS_MREMAP_OP_LCK(NULL, ptr, old_size, *sizep, old_size); + return NULL; + } + +#if ERTS_HAVE_OS_MREMAP || ERTS_HAVE_GENUINE_OS_MMAP + superaligned = (ERTS_MMAPFLG_SUPERALIGNED & flags); + + if (superaligned) { + asize = ERTS_SUPERALIGNED_CEILING(*sizep); + if (asize == old_size && ERTS_IS_SUPERALIGNED(ptr)) { + ERTS_MREMAP_OP_LCK(ptr, ptr, old_size, *sizep, asize); + *sizep = asize; + return ptr; + } + } + else { + asize = ERTS_PAGEALIGNED_CEILING(*sizep); + if (asize == old_size) { + ERTS_MREMAP_OP_LCK(ptr, ptr, old_size, *sizep, asize); + *sizep = asize; + return ptr; + } + } + +#if ERTS_HAVE_GENUINE_OS_MMAP + if (asize < old_size + && (!superaligned + || ERTS_IS_SUPERALIGNED(ptr))) { + UWord um_sz; + new_ptr = ((char *) ptr) + asize; + ERTS_MMAP_ASSERT((((char *)ptr) + old_size) > (char *) new_ptr); + um_sz = (UWord) ((((char *) ptr) + old_size) - (char *) new_ptr); + ERTS_MMAP_SIZE_OS_DEC(um_sz); + os_munmap(new_ptr, um_sz); + ERTS_MREMAP_OP_LCK(ptr, ptr, old_size, *sizep, asize); + *sizep = asize; + return ptr; + } +#endif +#if ERTS_HAVE_OS_MREMAP + if (superaligned) + return remap_move(flags, new_ptr, old_size, sizep); + else { + new_ptr = os_mremap(ptr, old_size, asize, 0); + if (!new_ptr) + return NULL; + if (asize > old_size) + ERTS_MMAP_SIZE_OS_INC(asize - old_size); + else + ERTS_MMAP_SIZE_OS_DEC(old_size - asize); + ERTS_MREMAP_OP_LCK(new_ptr, ptr, old_size, *sizep, asize); + *sizep = asize; + return new_ptr; + } +#endif +#endif + } + else { /* In super carrier */ + char *start, *end, *new_end; + ErtsFreeSegMap *map; + ErtsFreeSegDesc *prev, *next; + UWord ad_sz = 0; + + ERTS_MMAP_ASSERT(mmap_state.supercarrier); + + if (ERTS_MMAPFLG_OS_ONLY & flags) + return remap_move(flags, ptr, old_size, sizep); + + superaligned = (ERTS_MMAPFLG_SUPERALIGNED & flags); + + asize = (superaligned + ? ERTS_SUPERALIGNED_CEILING(*sizep) + : ERTS_PAGEALIGNED_CEILING(*sizep)); + + erts_smp_mtx_lock(&mmap_state.mtx); + + if (ERTS_MMAP_IN_SUPERALIGNED_AREA(ptr) + ? (!superaligned && lookup_free_seg(&mmap_state.sua.map, asize)) + : (superaligned && lookup_free_seg(&mmap_state.sa.map, asize))) { + erts_smp_mtx_unlock(&mmap_state.mtx); + /* + * Segment currently in wrong area (due to a previous memory + * shortage), move it to the right area. + * (remap_move() will succeed) + */ + return remap_move(ERTS_MMAPFLG_SUPERCARRIER_ONLY|flags, ptr, + old_size, sizep); + } + + ERTS_MREMAP_OP_START(ptr, old_size, *sizep); + + if (asize == old_size) { + new_ptr = ptr; + goto supercarrier_resize_success; + } + + start = (char *) ptr; + end = start + old_size; + new_end = start+asize; + + ERTS_MMAP_ASSERT(ERTS_IS_PAGEALIGNED(ptr)); + ERTS_MMAP_ASSERT(ERTS_IS_PAGEALIGNED(old_size)); + ERTS_MMAP_ASSERT(ERTS_IS_PAGEALIGNED(asize)); + + if (asize < old_size) { + UWord unres_sz; + new_ptr = ptr; + if (!ERTS_MMAP_IN_SUPERALIGNED_AREA(ptr)) { + map = &mmap_state.sua.map; + ERTS_MMAP_SIZE_SC_SUA_DEC(old_size - asize); + } + else { + if (end == mmap_state.sa.top) { + mmap_state.sa.top = new_end; + mmap_state.unreserve_physical(((char *) ptr) + asize, + old_size - asize); + goto supercarrier_resize_success; + } + ERTS_MMAP_SIZE_SC_SA_DEC(old_size - asize); + map = &mmap_state.sa.map; + } + + adjacent_free_seg(map, start, end, &prev, &next); + + if (next) + resize_free_seg(map, next, new_end, next->end); + else + ad_sz = alloc_desc_insert_free_seg(map, new_end, end); + ERTS_MMAP_ASSERT(old_size - asize >= ad_sz); + unres_sz = old_size - asize - ad_sz; + if (unres_sz) + mmap_state.unreserve_physical(((char *) ptr) + asize + ad_sz, + unres_sz); + goto supercarrier_resize_success; + } + + if (!ERTS_MMAP_IN_SUPERALIGNED_AREA(ptr)) { + ERTS_MMAP_ASSERT(ERTS_IS_PAGEALIGNED(ptr)); + ERTS_MMAP_ASSERT(ERTS_IS_PAGEALIGNED(old_size)); + ERTS_MMAP_ASSERT(ERTS_IS_PAGEALIGNED(asize)); + + adjacent_free_seg(&mmap_state.sua.map, start, end, &prev, &next); + + if (next && new_end <= next->end) { + if (!mmap_state.reserve_physical(((char *) ptr) + old_size, + asize - old_size)) + goto supercarrier_reserve_failure; + if (new_end < next->end) + resize_free_seg(&mmap_state.sua.map, next, new_end, next->end); + else { + delete_free_seg(&mmap_state.sua.map, next); + free_desc(next); + } + new_ptr = ptr; + ERTS_MMAP_SIZE_SC_SUA_INC(asize - old_size); + goto supercarrier_resize_success; + } + } + else { /* Superaligned area */ + + if (end == mmap_state.sa.top) { + if (new_end <= mmap_state.sua.bot) { + if (!mmap_state.reserve_physical(((char *) ptr) + old_size, + asize - old_size)) + goto supercarrier_reserve_failure; + mmap_state.sa.top = new_end; + new_ptr = ptr; + ERTS_MMAP_SIZE_SC_SA_INC(asize - old_size); + goto supercarrier_resize_success; + } + } + else { + adjacent_free_seg(&mmap_state.sa.map, start, end, &prev, &next); + if (next && new_end <= next->end) { + if (!mmap_state.reserve_physical(((char *) ptr) + old_size, + asize - old_size)) + goto supercarrier_reserve_failure; + if (new_end < next->end) + resize_free_seg(&mmap_state.sa.map, next, new_end, next->end); + else { + delete_free_seg(&mmap_state.sa.map, next); + free_desc(next); + } + new_ptr = ptr; + ERTS_MMAP_SIZE_SC_SA_INC(asize - old_size); + goto supercarrier_resize_success; + } + } + } + + ERTS_MMAP_OP_ABORT(); + erts_smp_mtx_unlock(&mmap_state.mtx); + + /* Failed to resize... */ + } + + return remap_move(flags, ptr, old_size, sizep); + +supercarrier_resize_success: + +#ifdef ERTS_MMAP_DEBUG + if ((ERTS_MMAPFLG_SUPERALIGNED & flags) + || ERTS_MMAP_IN_SUPERALIGNED_AREA(new_ptr)) { + ERTS_MMAP_ASSERT(ERTS_IS_SUPERALIGNED(new_ptr)); + ERTS_MMAP_ASSERT(ERTS_IS_SUPERALIGNED(asize)); + } + else { + ERTS_MMAP_ASSERT(ERTS_IS_PAGEALIGNED(new_ptr)); + ERTS_MMAP_ASSERT(ERTS_IS_PAGEALIGNED(asize)); + } +#endif + + ERTS_MREMAP_OP_END(new_ptr, asize); + erts_smp_mtx_unlock(&mmap_state.mtx); + + *sizep = asize; + return new_ptr; + +supercarrier_reserve_failure: + ERTS_MREMAP_OP_END(NULL, old_size); + erts_smp_mtx_unlock(&mmap_state.mtx); + *sizep = old_size; + return NULL; + +} + +int erts_mmap_in_supercarrier(void *ptr) +{ + return ERTS_MMAP_IN_SUPERCARRIER(ptr); +} + + +static struct { + Eterm total; + Eterm total_sa; + Eterm total_sua; + Eterm used; + Eterm used_sa; + Eterm used_sua; + Eterm max; + Eterm allocated; + Eterm reserved; + Eterm sizes; + Eterm free_segs; + Eterm supercarrier; + Eterm os; + Eterm scs; + Eterm sco; + Eterm scrpm; + Eterm scrfsd; + + int is_initialized; + erts_mtx_t init_mutex; +}am; + +static void ERTS_INLINE atom_init(Eterm *atom, char *name) +{ + *atom = am_atom_put(name, strlen(name)); +} +#define AM_INIT(AM) atom_init(&am.AM, #AM) + +static void init_atoms(void) +{ + erts_mtx_lock(&am.init_mutex); + + if (!am.is_initialized) { + AM_INIT(total); + AM_INIT(total_sa); + AM_INIT(total_sua); + AM_INIT(used); + AM_INIT(used_sa); + AM_INIT(used_sua); + AM_INIT(max); + AM_INIT(allocated); + AM_INIT(reserved); + AM_INIT(sizes); + AM_INIT(free_segs); + AM_INIT(supercarrier); + AM_INIT(os); + AM_INIT(scs); + AM_INIT(sco); + AM_INIT(scrpm); + AM_INIT(scrfsd); + am.is_initialized = 1; + } + erts_mtx_unlock(&am.init_mutex); +}; + + +#ifdef HARD_DEBUG_MSEG +static void hard_dbg_mseg_init(void); +#endif + +void +erts_mmap_init(ErtsMMapInit *init) +{ + int virtual_map = 0; + char *start = NULL, *end = NULL; + UWord pagesize; +#if defined(__WIN32__) + SYSTEM_INFO sysinfo; + GetSystemInfo(&sysinfo); + pagesize = (UWord) sysinfo.dwPageSize; +#elif defined(_SC_PAGESIZE) + pagesize = (UWord) sysconf(_SC_PAGESIZE); +#elif defined(HAVE_GETPAGESIZE) + pagesize = (UWord) getpagesize(); +#else +# error "Do not know how to get page size" +#endif +#if defined(HARD_DEBUG) || 0 + erts_fprintf(stderr, "erts_mmap: scs = %bpu\n", init->scs); + erts_fprintf(stderr, "erts_mmap: sco = %i\n", init->sco); + erts_fprintf(stderr, "erts_mmap: scrfsd = %i\n", init->scrfsd); +#endif + erts_page_inv_mask = pagesize - 1; + if (pagesize & erts_page_inv_mask) + erl_exit(-1, "erts_mmap: Invalid pagesize: %bpu\n", + pagesize); + + ERTS_MMAP_OP_RINGBUF_INIT(); + + erts_have_erts_mmap = 0; + + mmap_state.supercarrier = 0; + mmap_state.reserve_physical = reserve_noop; + mmap_state.unreserve_physical = unreserve_noop; + +#if HAVE_MMAP && !defined(MAP_ANON) + mmap_state.mmap_fd = open("/dev/zero", O_RDWR); + if (mmap_state.mmap_fd < 0) + erl_exit(-1, "erts_mmap: Failed to open /dev/zero\n"); +#endif + + erts_smp_mtx_init(&mmap_state.mtx, "erts_mmap"); + erts_mtx_init(&am.init_mutex, "mmap_init_atoms"); + +#ifdef ERTS_HAVE_OS_PHYSICAL_MEMORY_RESERVATION + if (init->virtual_range.start) { + char *ptr; + UWord sz; + ptr = (char *) ERTS_PAGEALIGNED_CEILING(init->virtual_range.start); + end = (char *) ERTS_PAGEALIGNED_FLOOR(init->virtual_range.end); + sz = end - ptr; + start = os_mmap_virtual(ptr, sz); + if (!start || start > ptr || start >= end) + erl_exit(-1, + "erts_mmap: Failed to create virtual range for super carrier\n"); + sz = start - ptr; + if (sz) + os_munmap(end, sz); + mmap_state.reserve_physical = os_reserve_physical; + mmap_state.unreserve_physical = os_unreserve_physical; + virtual_map = 1; + } + else +#endif + if (init->predefined_area.start) { + start = init->predefined_area.start; + end = init->predefined_area.end; + if (end != (void *) 0 && end < start) + end = start; + } +#if ERTS_HAVE_OS_MMAP + else if (init->scs) { + UWord sz; + sz = ERTS_PAGEALIGNED_CEILING(init->scs); +#ifdef ERTS_HAVE_OS_PHYSICAL_MEMORY_RESERVATION + if (!init->scrpm) { + start = os_mmap_virtual(NULL, sz); + mmap_state.reserve_physical = os_reserve_physical; + mmap_state.unreserve_physical = os_unreserve_physical; + virtual_map = 1; + } + else +#endif + { + /* + * The whole supercarrier will by physically + * reserved all the time. + */ + start = os_mmap(NULL, sz, 1); + } + if (!start) + erl_exit(-1, + "erts_mmap: Failed to create super carrier of size %bpu MB\n", + init->scs/1024/1024); + end = start + sz; +#ifdef ERTS_MMAP_DEBUG_FILL_AREAS + if (!virtual_map) { + Uint32 *uip; + + for (uip = (Uint32 *) start; uip < (Uint32 *) end; uip++) + *uip = (Uint32) 0xdeadbeef; + } +#endif + } + if (!mmap_state.no_os_mmap) + erts_have_erts_mmap |= ERTS_HAVE_ERTS_OS_MMAP; +#endif + + mmap_state.no.free_seg_descs = 0; + mmap_state.no.free_segs.curr = 0; + mmap_state.no.free_segs.max = 0; + + mmap_state.size.supercarrier.total = 0; + mmap_state.size.supercarrier.used.total = 0; + mmap_state.size.supercarrier.used.sa = 0; + mmap_state.size.supercarrier.used.sua = 0; + mmap_state.size.os.used = 0; + + mmap_state.desc.new_area_hint = NULL; + + if (!start) { + mmap_state.sa.bot = NULL; + mmap_state.sua.top = NULL; + mmap_state.sa.bot = NULL; + mmap_state.sua.top = NULL; + mmap_state.no_os_mmap = 0; + mmap_state.supercarrier = 0; + } + else { + size_t desc_size; + + mmap_state.no_os_mmap = init->sco; + + desc_size = init->scrfsd; + if (desc_size < 100) + desc_size = 100; + desc_size *= sizeof(ErtsFreeSegDesc); + if ((desc_size + + ERTS_SUPERALIGNED_SIZE + + ERTS_PAGEALIGNED_SIZE) > end - start) + erl_exit(-1, "erts_mmap: No space for segments in super carrier\n"); + + mmap_state.sa.bot = start; + mmap_state.sa.bot += desc_size; + mmap_state.sa.bot = (char *) ERTS_SUPERALIGNED_CEILING(mmap_state.sa.bot); + mmap_state.sa.top = mmap_state.sa.bot; + mmap_state.sua.top = end; + mmap_state.sua.bot = mmap_state.sua.top; + + mmap_state.size.supercarrier.used.total += (UWord) (mmap_state.sa.bot - start); + + mmap_state.desc.free_list = NULL; + mmap_state.desc.reserved = 0; + + if (end == (void *) 0) { + /* + * Very unlikely, but we need a guarantee + * that `mmap_state.sua.top` always will + * compare as larger than all segment pointers + * into the super carrier... + */ + mmap_state.sua.top -= ERTS_PAGEALIGNED_SIZE; + mmap_state.size.supercarrier.used.total += ERTS_PAGEALIGNED_SIZE; +#ifdef ERTS_HAVE_OS_PHYSICAL_MEMORY_RESERVATION + if (!virtual_map || os_reserve_physical(mmap_state.sua.top, ERTS_PAGEALIGNED_SIZE)) +#endif + add_free_desc_area(mmap_state.sua.top, end); + mmap_state.desc.reserved += (end - mmap_state.sua.top) / sizeof(ErtsFreeSegDesc); + } + + mmap_state.size.supercarrier.total = (UWord) (mmap_state.sua.top - start); + + /* + * Area before (and after) super carrier + * will be used for free segment descritors. + */ +#ifdef ERTS_HAVE_OS_PHYSICAL_MEMORY_RESERVATION + if (virtual_map && !os_reserve_physical(start, mmap_state.sa.bot - start)) + erl_exit(-1, "erts_mmap: Failed to reserve physical memory for descriptors\n"); +#endif + mmap_state.desc.unused_start = start; + mmap_state.desc.unused_end = mmap_state.sa.bot; + mmap_state.desc.reserved += ((mmap_state.desc.unused_end - start) + / sizeof(ErtsFreeSegDesc)); + + init_free_seg_map(&mmap_state.sa.map, SA_SZ_ADDR_ORDER); + init_free_seg_map(&mmap_state.sua.map, SZ_REVERSE_ADDR_ORDER); + + mmap_state.supercarrier = 1; + erts_have_erts_mmap |= ERTS_HAVE_ERTS_SUPERCARRIER_MMAP; + + mmap_state.desc.new_area_hint = end; + + } + +#if !ERTS_HAVE_OS_MMAP + mmap_state.no_os_mmap = 1; +#endif + +#ifdef HARD_DEBUG_MSEG + hard_dbg_mseg_init(); +#endif +} + + +static ERTS_INLINE void +add_2tup(Uint **hpp, Uint *szp, Eterm *lp, Eterm el1, Eterm el2) +{ + *lp = erts_bld_cons(hpp, szp, erts_bld_tuple(hpp, szp, 2, el1, el2), *lp); +} + +Eterm erts_mmap_info(int *print_to_p, + void *print_to_arg, + Eterm** hpp, Uint* szp, + struct erts_mmap_info_struct* emis) +{ + Eterm size_tags[] = { am.total, am.total_sa, am.total_sua, am.used, am.used_sa, am.used_sua }; + Eterm seg_tags[] = { am.used, am.max, am.allocated, am.reserved, am.used_sa, am.used_sua }; + Eterm group[2]; + Eterm group_tags[] = { am.sizes, am.free_segs }; + Eterm list[2]; + Eterm list_tags[2]; /* { am.supercarrier, am.os } */ + int lix; + Eterm res = THE_NON_VALUE; + + if (!hpp) { + erts_smp_mtx_lock(&mmap_state.mtx); + emis->sizes[0] = mmap_state.size.supercarrier.total; + emis->sizes[1] = mmap_state.sa.top - mmap_state.sa.bot; + emis->sizes[2] = mmap_state.sua.top - mmap_state.sua.bot; + emis->sizes[3] = mmap_state.size.supercarrier.used.total; + emis->sizes[4] = mmap_state.size.supercarrier.used.sa; + emis->sizes[5] = mmap_state.size.supercarrier.used.sua; + + emis->segs[0] = mmap_state.no.free_segs.curr; + emis->segs[1] = mmap_state.no.free_segs.max; + emis->segs[2] = mmap_state.no.free_seg_descs; + emis->segs[3] = mmap_state.desc.reserved; + emis->segs[4] = mmap_state.sa.map.nseg; + emis->segs[5] = mmap_state.sua.map.nseg; + + emis->os_used = mmap_state.size.os.used; + erts_smp_mtx_unlock(&mmap_state.mtx); + } + + if (print_to_p) { + int to = *print_to_p; + void *arg = print_to_arg; + if (mmap_state.supercarrier) { + const char* prefix = "supercarrier "; + erts_print(to, arg, "%stotal size: %bpu\n", prefix, emis->sizes[0]); + erts_print(to, arg, "%stotal sa size: %bpu\n", prefix, emis->sizes[1]); + erts_print(to, arg, "%stotal sua size: %bpu\n", prefix, emis->sizes[2]); + erts_print(to, arg, "%sused size: %bpu\n", prefix, emis->sizes[3]); + erts_print(to, arg, "%sused sa size: %bpu\n", prefix, emis->sizes[4]); + erts_print(to, arg, "%sused sua size: %bpu\n", prefix, emis->sizes[5]); + erts_print(to, arg, "%sused free segs: %bpu\n", prefix, emis->segs[0]); + erts_print(to, arg, "%smax free segs: %bpu\n", prefix, emis->segs[1]); + erts_print(to, arg, "%sallocated free segs: %bpu\n", prefix, emis->segs[2]); + erts_print(to, arg, "%sreserved free segs: %bpu\n", prefix, emis->segs[3]); + erts_print(to, arg, "%ssa free segs: %bpu\n", prefix, emis->segs[4]); + erts_print(to, arg, "%ssua free segs: %bpu\n", prefix, emis->segs[5]); + } + if (!mmap_state.no_os_mmap) { + erts_print(to, arg, "os mmap size used: %bpu\n", emis->os_used); + } + } + + + if (hpp || szp) { + if (!am.is_initialized) { + init_atoms(); + } + + lix = 0; + if (mmap_state.supercarrier) { + group[0] = erts_bld_atom_uword_2tup_list(hpp, szp, + sizeof(size_tags)/sizeof(Eterm), + size_tags, emis->sizes); + group[1] = erts_bld_atom_uword_2tup_list(hpp, szp, + sizeof(seg_tags)/sizeof(Eterm), + seg_tags, emis->segs); + list[lix] = erts_bld_2tup_list(hpp, szp, 2, group_tags, group); + list_tags[lix] = am.supercarrier; + lix++; + } + + if (!mmap_state.no_os_mmap) { + group[0] = erts_bld_atom_uword_2tup_list(hpp, szp, + 1, &am.used, &emis->os_used); + list[lix] = erts_bld_2tup_list(hpp, szp, 1, group_tags, group); + list_tags[lix] = am.os; + lix++; + } + res = erts_bld_2tup_list(hpp, szp, lix, list_tags, list); + } + return res; +} + +Eterm erts_mmap_info_options(char *prefix, + int *print_to_p, + void *print_to_arg, + Uint **hpp, + Uint *szp) +{ + const UWord scs = mmap_state.sua.top - mmap_state.sa.bot; + const Eterm sco = mmap_state.no_os_mmap ? am_true : am_false; + const Eterm scrpm = (mmap_state.reserve_physical == reserve_noop) ? am_true : am_false; + Eterm res = THE_NON_VALUE; + + if (print_to_p) { + int to = *print_to_p; + void *arg = print_to_arg; + erts_print(to, arg, "%sscs: %bpu\n", prefix, scs); + if (mmap_state.supercarrier) { + erts_print(to, arg, "%ssco: %T\n", prefix, sco); + erts_print(to, arg, "%sscrpm: %T\n", prefix, scrpm); + erts_print(to, arg, "%sscrfsd: %beu\n", prefix, mmap_state.desc.reserved); + } + } + + if (hpp || szp) { + if (!am.is_initialized) { + init_atoms(); + } + + res = NIL; + if (mmap_state.supercarrier) { + add_2tup(hpp, szp, &res, am.scrfsd, + erts_bld_uint(hpp,szp, mmap_state.desc.reserved)); + add_2tup(hpp, szp, &res, am.scrpm, scrpm); + add_2tup(hpp, szp, &res, am.sco, sco); + } + add_2tup(hpp, szp, &res, am.scs, erts_bld_uword(hpp, szp, scs)); + } + return res; +} + + +Eterm erts_mmap_debug_info(Process* p) +{ + if (mmap_state.supercarrier) { + ERTS_DECL_AM(sabot); + ERTS_DECL_AM(satop); + ERTS_DECL_AM(suabot); + ERTS_DECL_AM(suatop); + Eterm sa_list, sua_list, list; + Eterm tags[] = { AM_sabot, AM_satop, AM_suabot, AM_suatop }; + UWord values[4]; + Eterm *hp, *hp_end; + Uint may_need; + const Uint PTR_BIG_SZ = HALFWORD_HEAP ? 3 : 2; + + erts_smp_mtx_lock(&mmap_state.mtx); + values[0] = (UWord)mmap_state.sa.bot; + values[1] = (UWord)mmap_state.sa.top; + values[2] = (UWord)mmap_state.sua.bot; + values[3] = (UWord)mmap_state.sua.top; + sa_list = build_free_seg_list(p, &mmap_state.sa.map); + sua_list = build_free_seg_list(p, &mmap_state.sua.map); + erts_smp_mtx_unlock(&mmap_state.mtx); + + may_need = 4*(2+3+PTR_BIG_SZ) + 2*(2+3); + hp = HAlloc(p, may_need); + hp_end = hp + may_need; + + list = erts_bld_atom_uword_2tup_list(&hp, NULL, + sizeof(values)/sizeof(*values), + tags, values); + + sa_list = TUPLE2(hp, am_atom_put("sa_free_segs",12), sa_list); hp+=3; + sua_list = TUPLE2(hp, am_atom_put("sua_free_segs",13), sua_list); hp+=3; + list = CONS(hp, sua_list, list); hp+=2; + list = CONS(hp, sa_list, list); hp+=2; + + ASSERT(hp <= hp_end); + HRelease(p, hp_end, hp); + return list; + } + else { + return am_undefined; + } +} + + +/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\ + * Debug functions * +\* */ + + +#ifdef HARD_DEBUG + +static int rbt_assert_is_member(RBTNode* root, RBTNode* node) +{ + while (node != root) { + RBT_ASSERT(parent(node)); + RBT_ASSERT(parent(node)->left == node || parent(node)->right == node); + node = parent(node); + } + return 1; +} + + +#if 0 +# define PRINT_TREE +#else +# undef PRINT_TREE +#endif + +#ifdef PRINT_TREE +static void print_tree(enum SortOrder order, RBTNode*); +#endif + +/* + * Checks that the order between parent and children are correct, + * and that the Red-Black Tree properies are satisfied. if size > 0, + * check_tree() returns the node that satisfies "address order first fit" + * + * The Red-Black Tree properies are: + * 1. Every node is either red or black. + * 2. Every leaf (NIL) is black. + * 3. If a node is red, then both its children are black. + * 4. Every simple path from a node to a descendant leaf + * contains the same number of black nodes. + * + */ + +struct check_arg_t { + RBTree* tree; + ErtsFreeSegDesc* prev_seg; + Uint size; + RBTNode *res; +}; +static void check_node_callback(RBTNode* x, void* arg); + + +static RBTNode * +check_tree(RBTree* tree, Uint size) +{ + struct check_arg_t carg; + carg.tree = tree; + carg.prev_seg = NULL; + carg.size = size; + carg.res = NULL; + +#ifdef PRINT_TREE + print_tree(tree->order, tree->root); +#endif + + if (!tree->root) + return NULL; + + RBT_ASSERT(IS_BLACK(tree->root)); + RBT_ASSERT(!parent(tree->root)); + + rbt_foreach_node(tree, check_node_callback, &carg, 0); + + return carg.res; +} + +static void check_node_callback(RBTNode* x, void* arg) +{ + struct check_arg_t* a = (struct check_arg_t*) arg; + ErtsFreeSegDesc* seg; + + if (IS_RED(x)) { + RBT_ASSERT(IS_BLACK(x->right)); + RBT_ASSERT(IS_BLACK(x->left)); + } + + RBT_ASSERT(parent(x) || x == a->tree->root); + + if (x->left) { + RBT_ASSERT(cmp_nodes(a->tree->order, x->left, x) < 0); + } + if (x->right) { + RBT_ASSERT(cmp_nodes(a->tree->order, x->right, x) > 0); + } + + seg = node_to_desc(a->tree->order, x); + RBT_ASSERT(seg->start < seg->end); + if (a->size && (seg->end - seg->start) >= a->size) { + if (!a->res || cmp_nodes(a->tree->order, x, a->res) < 0) { + a->res = x; + } + } + if (a->tree->order == ADDR_ORDER) { + RBT_ASSERT(!a->prev_seg || a->prev_seg->end < seg->start); + a->prev_seg = seg; + } +} + +#endif /* HARD_DEBUG */ + + +#ifdef PRINT_TREE +#define INDENT_STEP 2 + +#include <stdio.h> + +static void +print_tree_aux(enum SortOrder order, RBTNode *x, int indent) +{ + int i; + + if (x) { + ErtsFreeSegDesc* desc = node_to_desc(order, x); + print_tree_aux(order, x->right, indent + INDENT_STEP); + for (i = 0; i < indent; i++) { + putc(' ', stderr); + } + fprintf(stderr, "%s: sz=%lx [%p - %p] desc=%p\r\n", + IS_BLACK(x) ? "BLACK" : "RED", + desc->end - desc->start, desc->start, desc->end, desc); + print_tree_aux(order, x->left, indent + INDENT_STEP); + } +} + + +static void +print_tree(enum SortOrder order, RBTNode* root) +{ + fprintf(stderr, " --- %s ordered tree begin ---\r\n", sort_order_names[order]); + print_tree_aux(order, root, 0); + fprintf(stderr, " --- %s ordered tree end ---\r\n", sort_order_names[order]); +} + +#endif /* PRINT_TREE */ + + +#ifdef FREE_SEG_API_SMOKE_TEST + +void test_it(void) +{ + ErtsFreeSegMap map; + ErtsFreeSegDesc *desc, *under, *over, *d1, *d2; + const int i = 1; /* reverse addr order */ + + { + init_free_seg_map(&map, SZ_REVERSE_ADDR_ORDER); + + insert_free_seg(&map, alloc_desc(), (char*)0x11000, (char*)0x12000); + HARD_CHECK_TREE(&map.atree, 0); HARD_CHECK_TREE(&map.stree, 0); + insert_free_seg(&map, alloc_desc(), (char*)0x13000, (char*)0x14000); + HARD_CHECK_TREE(&map.atree, 0); HARD_CHECK_TREE(&map.stree, 0); + insert_free_seg(&map, alloc_desc(), (char*)0x15000, (char*)0x17000); + HARD_CHECK_TREE(&map.atree, 0); HARD_CHECK_TREE(&map.stree, 0); + insert_free_seg(&map, alloc_desc(), (char*)0x8000, (char*)0x10000); + HARD_CHECK_TREE(&map.atree, 0); HARD_CHECK_TREE(&map.stree, 0); + + desc = lookup_free_seg(&map, 0x500); + ERTS_ASSERT(desc->start == (char*)(i?0x13000L:0x11000L)); + + desc = lookup_free_seg(&map, 0x1500); + ERTS_ASSERT(desc->start == (char*)0x15000); + + adjacent_free_seg(&map, (char*)0x6666, (char*)0x7777, &under, &over); + ERTS_ASSERT(!under && !over); + + adjacent_free_seg(&map, (char*)0x6666, (char*)0x8000, &under, &over); + ERTS_ASSERT(!under && over->start == (char*)0x8000); + + adjacent_free_seg(&map, (char*)0x10000, (char*)0x10500, &under, &over); + ERTS_ASSERT(under->end == (char*)0x10000 && !over); + + adjacent_free_seg(&map, (char*)0x10100, (char*)0x10500, &under, &over); + ERTS_ASSERT(!under && !over); + + adjacent_free_seg(&map, (char*)0x10100, (char*)0x11000, &under, &over); + ERTS_ASSERT(!under && over && over->start == (char*)0x11000); + + adjacent_free_seg(&map, (char*)0x12000, (char*)0x12500, &under, &over); + ERTS_ASSERT(under && under->end == (char*)0x12000 && !over); + + adjacent_free_seg(&map, (char*)0x12000, (char*)0x13000, &under, &over); + ERTS_ASSERT(under && under->end == (char*)0x12000 && + over && over->start == (char*)0x13000); + + adjacent_free_seg(&map, (char*)0x12500, (char*)0x13000, &under, &over); + ERTS_ASSERT(!under && over && over->start == (char*)0x13000); + + d1 = lookup_free_seg(&map, 0x500); + ERTS_ASSERT(d1->start == (char*)(i?0x13000L:0x11000L)); + + resize_free_seg(&map, d1, d1->start - 0x800, (char*)d1->end); + HARD_CHECK_TREE(&map.atree, 0); HARD_CHECK_TREE(&map.stree, 0); + + d2 = lookup_free_seg(&map, 0x1200); + ERTS_ASSERT(d2 == d1); + + delete_free_seg(&map, d1); + HARD_CHECK_TREE(&map.atree, 0); HARD_CHECK_TREE(&map.stree, 0); + + d1 = lookup_free_seg(&map, 0x1200); + ERTS_ASSERT(d1->start == (char*)0x15000); + } +} + +#endif /* FREE_SEG_API_SMOKE_TEST */ + + +#ifdef HARD_DEBUG_MSEG + +/* + * Debug stuff used by erl_mseg to check that it does the right thing. + * The reason for keeping it here is that we (ab)use the rb-tree code + * for keeping track of *allocated* segments. + */ + +typedef struct ErtsFreeSegDesc_fake_ { + /*RBTNode snode; Save memory by skipping unused size tree node */ + RBTNode anode; /* node in 'atree' */ + union { + char* start; + struct ErtsFreeSegDesc_fake_* next_free; + }u; + char* end; +}ErtsFreeSegDesc_fake; + +static ErtsFreeSegDesc_fake hard_dbg_mseg_desc_pool[10000]; +static ErtsFreeSegDesc_fake* hard_dbg_mseg_desc_first; +RBTree hard_dbg_mseg_tree; + +static erts_mtx_t hard_dbg_mseg_mtx; + +static void hard_dbg_mseg_init(void) +{ + ErtsFreeSegDesc_fake* p; + + erts_mtx_init(&hard_dbg_mseg_mtx, "hard_dbg_mseg"); + hard_dbg_mseg_tree.root = NULL; + hard_dbg_mseg_tree.order = ADDR_ORDER; + + p = &hard_dbg_mseg_desc_pool[(sizeof(hard_dbg_mseg_desc_pool) / + sizeof(*hard_dbg_mseg_desc_pool)) - 1]; + p->u.next_free = NULL; + while (--p >= hard_dbg_mseg_desc_pool) { + p->u.next_free = (p+1); + } + hard_dbg_mseg_desc_first = &hard_dbg_mseg_desc_pool[0]; +} + +static ErtsFreeSegDesc* hard_dbg_alloc_desc(void) +{ + ErtsFreeSegDesc_fake* p = hard_dbg_mseg_desc_first; + ERTS_ASSERT(p || !"HARD_DEBUG_MSEG: Out of mseg descriptors"); + hard_dbg_mseg_desc_first = p->u.next_free; + + /* Creative pointer arithmetic to return something that looks like + * a ErtsFreeSegDesc as long as we don't use the absent 'snode'. + */ + return (ErtsFreeSegDesc*) ((char*)p - offsetof(ErtsFreeSegDesc,anode)); +} + +static void hard_dbg_free_desc(ErtsFreeSegDesc* desc) +{ + ErtsFreeSegDesc_fake* p = (ErtsFreeSegDesc_fake*) &desc->anode; + memset(p, 0xfe, sizeof(*p)); + p->u.next_free = hard_dbg_mseg_desc_first; + hard_dbg_mseg_desc_first = p; +} + +static void check_seg_writable(void* seg, UWord sz) +{ + UWord* seg_end = (UWord*)((char*)seg + sz); + volatile UWord* p; + ERTS_ASSERT(ERTS_IS_PAGEALIGNED(seg)); + ERTS_ASSERT(ERTS_IS_PAGEALIGNED(sz)); + for (p=(UWord*)seg; p<seg_end; p += (ERTS_INV_PAGEALIGNED_MASK+1)/sizeof(UWord)) { + UWord write_back = *p; + *p = 0xfade2b1acc; + *p = write_back; + } +} + +void hard_dbg_insert_mseg(void* seg, UWord sz) +{ + check_seg_writable(seg, sz); + erts_mtx_lock(&hard_dbg_mseg_mtx); + { + ErtsFreeSegDesc *desc = hard_dbg_alloc_desc(); + RBTNode *prev, *next; + desc->start = (char*)seg; + desc->end = desc->start + sz - 1; /* -1 to allow adjacent segments in tree */ + rbt_insert(&hard_dbg_mseg_tree, &desc->anode); + prev = rbt_prev_node(&desc->anode); + next = rbt_next_node(&desc->anode); + ERTS_ASSERT(!prev || anode_to_desc(prev)->end < desc->start); + ERTS_ASSERT(!next || anode_to_desc(next)->start > desc->end); + } + erts_mtx_unlock(&hard_dbg_mseg_mtx); +} + +static ErtsFreeSegDesc* hard_dbg_lookup_seg_at(RBTree* tree, char* start) +{ + RBTNode* x = tree->root; + + while (x) { + ErtsFreeSegDesc* desc = anode_to_desc(x); + if (start < desc->start) { + x = x->left; + } + else if (start > desc->start) { + ERTS_ASSERT(start > desc->end); + x = x->right; + } + else + return desc; + } + return NULL; +} + +void hard_dbg_remove_mseg(void* seg, UWord sz) +{ + check_seg_writable(seg, sz); + erts_mtx_lock(&hard_dbg_mseg_mtx); + { + ErtsFreeSegDesc* desc = hard_dbg_lookup_seg_at(&hard_dbg_mseg_tree, (char*)seg); + ERTS_ASSERT(desc); + ERTS_ASSERT(desc->start == (char*)seg); + ERTS_ASSERT(desc->end == (char*)seg + sz - 1); + + rbt_delete(&hard_dbg_mseg_tree, &desc->anode); + hard_dbg_free_desc(desc); + } + erts_mtx_unlock(&hard_dbg_mseg_mtx); +} + +#endif /* HARD_DEBUG_MSEG */ diff --git a/erts/emulator/sys/common/erl_mmap.h b/erts/emulator/sys/common/erl_mmap.h new file mode 100644 index 0000000000..778a8e0e80 --- /dev/null +++ b/erts/emulator/sys/common/erl_mmap.h @@ -0,0 +1,134 @@ +/* + * %CopyrightBegin% + * + * Copyright Ericsson AB 2013. All Rights Reserved. + * + * The contents of this file are subject to the Erlang Public License, + * Version 1.1, (the "License"); you may not use this file except in + * compliance with the License. You should have received a copy of the + * Erlang Public License along with this software. If not, it can be + * retrieved online at http://www.erlang.org/. + * + * Software distributed under the License is distributed on an "AS IS" + * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See + * the License for the specific language governing rights and limitations + * under the License. + * + * %CopyrightEnd% + */ + +#ifndef ERL_MMAP_H__ +#define ERL_MMAP_H__ + +#include "sys.h" + +#define ERTS_MMAP_SUPERALIGNED_BITS (18) +/* Affects hard limits for sbct and lmbcs documented in erts_alloc.xml */ + +#define ERTS_MMAPFLG_OS_ONLY (((Uint32) 1) << 0) +#define ERTS_MMAPFLG_SUPERCARRIER_ONLY (((Uint32) 1) << 1) +#define ERTS_MMAPFLG_SUPERALIGNED (((Uint32) 1) << 2) + +#define ERTS_HAVE_ERTS_OS_MMAP (1 << 0) +#define ERTS_HAVE_ERTS_SUPERCARRIER_MMAP (1 << 1) +extern int erts_have_erts_mmap; +extern UWord erts_page_inv_mask; + +typedef struct { + struct { + char *start; + char *end; + } virtual_range; + struct { + char *start; + char *end; + } predefined_area; + UWord scs; /* super carrier size */ + int sco; /* super carrier only? */ + UWord scrfsd; /* super carrier reserved free segment descriptors */ + int scrpm; /* super carrier reserve physical memory */ +}ErtsMMapInit; + +#define ERTS_MMAP_INIT_DEFAULT_INITER \ + {{NULL, NULL}, {NULL, NULL}, 0, 1, (1 << 16), 1} + +void *erts_mmap(Uint32 flags, UWord *sizep); +void erts_munmap(Uint32 flags, void *ptr, UWord size); +void *erts_mremap(Uint32 flags, void *ptr, UWord old_size, UWord *sizep); +int erts_mmap_in_supercarrier(void *ptr); +void erts_mmap_init(ErtsMMapInit*); +struct erts_mmap_info_struct +{ + UWord sizes[6]; + UWord segs[6]; + UWord os_used; +}; +Eterm erts_mmap_info(int *print_to_p, void *print_to_arg, + Eterm** hpp, Uint* szp, struct erts_mmap_info_struct*); +Eterm erts_mmap_info_options(char *prefix, int *print_to_p, void *print_to_arg, + Uint **hpp, Uint *szp); +struct process; +Eterm erts_mmap_debug_info(struct process*); + +#define ERTS_SUPERALIGNED_SIZE \ + (1 << ERTS_MMAP_SUPERALIGNED_BITS) +#define ERTS_INV_SUPERALIGNED_MASK \ + ((UWord) (ERTS_SUPERALIGNED_SIZE - 1)) +#define ERTS_SUPERALIGNED_MASK \ + (~ERTS_INV_SUPERALIGNED_MASK) +#define ERTS_SUPERALIGNED_FLOOR(X) \ + (((UWord) (X)) & ERTS_SUPERALIGNED_MASK) +#define ERTS_SUPERALIGNED_CEILING(X) \ + ERTS_SUPERALIGNED_FLOOR((X) + ERTS_INV_SUPERALIGNED_MASK) +#define ERTS_IS_SUPERALIGNED(X) \ + (((UWord) (X) & ERTS_INV_SUPERALIGNED_MASK) == 0) + +#define ERTS_INV_PAGEALIGNED_MASK \ + (erts_page_inv_mask) +#define ERTS_PAGEALIGNED_MASK \ + (~ERTS_INV_PAGEALIGNED_MASK) +#define ERTS_PAGEALIGNED_FLOOR(X) \ + (((UWord) (X)) & ERTS_PAGEALIGNED_MASK) +#define ERTS_PAGEALIGNED_CEILING(X) \ + ERTS_PAGEALIGNED_FLOOR((X) + ERTS_INV_PAGEALIGNED_MASK) +#define ERTS_IS_PAGEALIGNED(X) \ + (((UWord) (X) & ERTS_INV_PAGEALIGNED_MASK) == 0) +#define ERTS_PAGEALIGNED_SIZE \ + (ERTS_INV_PAGEALIGNED_MASK + 1) + +#ifndef HAVE_MMAP +# define HAVE_MMAP 0 +#endif +#ifndef HAVE_MREMAP +# define HAVE_MREMAP 0 +#endif +#if HAVE_MMAP +# define ERTS_HAVE_OS_MMAP 1 +# define ERTS_HAVE_GENUINE_OS_MMAP 1 +# if HAVE_MREMAP +# define ERTS_HAVE_OS_MREMAP 1 +# endif +# if defined(MAP_FIXED) && defined(MAP_NORESERVE) +# define ERTS_HAVE_OS_PHYSICAL_MEMORY_RESERVATION 1 +# endif +#endif + +#ifndef HAVE_VIRTUALALLOC +# define HAVE_VIRTUALALLOC 0 +#endif +#if HAVE_VIRTUALALLOC +# define ERTS_HAVE_OS_MMAP 1 +#endif + +/*#define HARD_DEBUG_MSEG*/ +#ifdef HARD_DEBUG_MSEG +# define HARD_DBG_INSERT_MSEG hard_dbg_insert_mseg +# define HARD_DBG_REMOVE_MSEG hard_dbg_remove_mseg +void hard_dbg_insert_mseg(void* seg, UWord sz); +void hard_dbg_remove_mseg(void* seg, UWord sz); +#else +# define HARD_DBG_INSERT_MSEG(SEG,SZ) +# define HARD_DBG_REMOVE_MSEG(SEG,SZ) +#endif + +#endif /* ERL_MMAP_H__ */ diff --git a/erts/emulator/sys/common/erl_mseg.c b/erts/emulator/sys/common/erl_mseg.c index 2748edba02..94a381e168 100644 --- a/erts/emulator/sys/common/erl_mseg.c +++ b/erts/emulator/sys/common/erl_mseg.c @@ -100,45 +100,6 @@ static int atoms_initialized; typedef struct mem_kind_t MemKind; -#if HALFWORD_HEAP -static int initialize_pmmap(void); -static void *pmmap(size_t size); -static int pmunmap(void *p, size_t size); -static void *pmremap(void *old_address, size_t old_size, - size_t new_size); -#endif - -#if HAVE_MMAP -/* Mmap ... */ - -#define MMAP_PROT (PROT_READ|PROT_WRITE) - - -#ifdef MAP_ANON -# define MMAP_FLAGS (MAP_ANON|MAP_PRIVATE) -# define MMAP_FD (-1) -#else -# define MMAP_FLAGS (MAP_PRIVATE) -# define MMAP_FD mmap_fd -static int mmap_fd; -#endif - -#if HAVE_MREMAP -# define HAVE_MSEG_RECREATE 1 -#else -# define HAVE_MSEG_RECREATE 0 -#endif - -#if HALFWORD_HEAP -#define CAN_PARTLY_DESTROY 0 -#else -#define CAN_PARTLY_DESTROY 1 -#endif -#else /* #if HAVE_MMAP */ -#define CAN_PARTLY_DESTROY 0 -#error "Not supported" -#endif /* #if HAVE_MMAP */ - const ErtsMsegOpt_t erts_mseg_default_opt = { 1, /* Use cache */ 1, /* Preserv data */ @@ -163,9 +124,7 @@ typedef struct { CallCounter create; CallCounter create_resize; CallCounter destroy; -#if HAVE_MSEG_RECREATE CallCounter recreate; -#endif CallCounter clear_cache; CallCounter check_cache; } ErtsMsegCalls; @@ -173,7 +132,7 @@ typedef struct { typedef struct cache_t_ cache_t; struct cache_t_ { - Uint size; + UWord size; void *seg; cache_t *next; cache_t *prev; @@ -236,11 +195,6 @@ struct ErtsMsegAllctr_t_ { Uint rel_max_cache_bad_fit; ErtsMsegCalls calls; - -#if CAN_PARTLY_DESTROY - Uint min_seg_size; -#endif - }; typedef union { @@ -344,69 +298,31 @@ schedule_cache_check(ErtsMsegAllctr_t *ma) { } } -/* remove ErtsMsegAllctr_t from arguments? - * only used for statistics - */ -static ERTS_INLINE void * -mmap_align(ErtsMsegAllctr_t *ma, void *addr, size_t length, int prot, int flags, int fd, off_t offset) { - - char *p, *q; - UWord d; - - p = mmap(addr, length, prot, flags, fd, offset); - - if (MAP_IS_ALIGNED(p) || p == MAP_FAILED) - return p; - - if (ma) - INC_CC(ma, create_resize); - - munmap(p, length); - - if ((p = mmap(addr, length + MSEG_ALIGNED_SIZE, prot, flags, fd, offset)) == MAP_FAILED) - return MAP_FAILED; - - q = (void *)ALIGNED_CEILING((char *)p); - d = (UWord)(q - p); - - if (d > 0) - munmap(p, d); - - if (MSEG_ALIGNED_SIZE - d > 0) - munmap((void *)(q + length), MSEG_ALIGNED_SIZE - d); - - return q; -} +/* #define ERTS_PRINT_ERTS_MMAP */ static ERTS_INLINE void * -mseg_create(ErtsMsegAllctr_t *ma, MemKind* mk, Uint size) +mseg_create(ErtsMsegAllctr_t *ma, Uint flags, MemKind* mk, UWord *sizep) { +#ifdef ERTS_PRINT_ERTS_MMAP + UWord req_size = *sizep; +#endif void *seg; - ASSERT(size % MSEG_ALIGNED_SIZE == 0); - + Uint32 mmap_flags = 0; #if HALFWORD_HEAP - if (mk == &ma->low_mem) { - seg = pmmap(size); - if ((unsigned long) seg & CHECK_POINTER_MASK) { - erts_fprintf(stderr,"Pointer mask failure (0x%08lx)\n",(unsigned long) seg); - return NULL; - } - } else + mmap_flags |= ((mk == &ma->low_mem) + ? ERTS_MMAPFLG_SUPERCARRIER_ONLY + : ERTS_MMAPFLG_OS_ONLY); #endif - { -#if HAVE_MMAP - { - seg = (void *) mmap_align(ma, (void *) 0, (size_t) size, - MMAP_PROT, MMAP_FLAGS, MMAP_FD, 0); - if (seg == (void *) MAP_FAILED) - seg = NULL; - - ASSERT(MAP_IS_ALIGNED(seg) || !seg); - } -#else -# error "Missing mseg_create() implementation" + if (MSEG_FLG_IS_2POW(flags)) + mmap_flags |= ERTS_MMAPFLG_SUPERALIGNED; + + seg = erts_mmap(mmap_flags, sizep); + +#ifdef ERTS_PRINT_ERTS_MMAP + erts_fprintf(stderr, "%p = erts_mmap(%s, {%bpu, %bpu});\n", seg, + (mmap_flags & ERTS_MMAPFLG_SUPERALIGNED) ? "sa" : "sua", + req_size, *sizep); #endif - } INC_CC(ma, create); @@ -414,91 +330,55 @@ mseg_create(ErtsMsegAllctr_t *ma, MemKind* mk, Uint size) } static ERTS_INLINE void -mseg_destroy(ErtsMsegAllctr_t *ma, MemKind* mk, void *seg, Uint size) { - ERTS_DECLARE_DUMMY(int res); - +mseg_destroy(ErtsMsegAllctr_t *ma, Uint flags, MemKind* mk, void *seg_p, UWord size) { + + Uint32 mmap_flags = 0; #if HALFWORD_HEAP - if (mk == &ma->low_mem) { - res = pmunmap((void *) seg, size); - } - else + mmap_flags |= ((mk == &ma->low_mem) + ? ERTS_MMAPFLG_SUPERCARRIER_ONLY + : ERTS_MMAPFLG_OS_ONLY); #endif - { -#ifdef HAVE_MMAP - res = munmap((void *) seg, size); -#else -# error "Missing mseg_destroy() implementation" + if (MSEG_FLG_IS_2POW(flags)) + mmap_flags |= ERTS_MMAPFLG_SUPERALIGNED; + + erts_munmap(mmap_flags, seg_p, size); +#ifdef ERTS_PRINT_ERTS_MMAP + erts_fprintf(stderr, "erts_munmap(%s, %p, %bpu);\n", + (mmap_flags & ERTS_MMAPFLG_SUPERALIGNED) ? "sa" : "sua", + seg_p, *size); #endif - } - - ASSERT(size % MSEG_ALIGNED_SIZE == 0); - ASSERT(res == 0); - INC_CC(ma, destroy); } -#if HAVE_MSEG_RECREATE -#if defined(__NetBSD__) -#define MREMAP_FLAGS (0) -#else -#define MREMAP_FLAGS (MREMAP_MAYMOVE) -#endif - - -/* mseg_recreate - * May return *unaligned* segments as in address not aligned to MSEG_ALIGNMENT - * it is still page aligned - * - * This is fine for single block carriers as long as we don't cache misaligned - * segments (since multiblock carriers may use them) - * - * For multiblock carriers we *need* MSEG_ALIGNMENT but mbc's will never be - * reallocated. - * - * This should probably be fixed the following way: - * 1) Use an option to segment allocation - NEED_ALIGNMENT - * 2) Add mremap_align which takes care of aligning a new a mremaped area - * 3) Fix the cache to handle of aligned and unaligned segments - */ - static ERTS_INLINE void * -mseg_recreate(ErtsMsegAllctr_t *ma, MemKind* mk, void *old_seg, Uint old_size, Uint new_size) +mseg_recreate(ErtsMsegAllctr_t *ma, Uint flags, MemKind* mk, void *old_seg, UWord old_size, UWord *sizep) { +#ifdef ERTS_PRINT_ERTS_MMAP + UWord req_size = *sizep; +#endif void *new_seg; - - ASSERT(old_size % MSEG_ALIGNED_SIZE == 0); - ASSERT(new_size % MSEG_ALIGNED_SIZE == 0); - + Uint32 mmap_flags = 0; #if HALFWORD_HEAP - if (mk == &ma->low_mem) { - new_seg = (void *) pmremap((void *) old_seg, - (size_t) old_size, - (size_t) new_size); - } - else + mmap_flags |= ((mk == &ma->low_mem) + ? ERTS_MMAPFLG_SUPERCARRIER_ONLY + : ERTS_MMAPFLG_OS_ONLY); #endif - { -#if HAVE_MREMAP -#if defined(__NetBSD__) - new_seg = mremap(old_seg, (size_t)old_size, NULL, new_size, MREMAP_FLAGS); -#else - new_seg = mremap(old_seg, (size_t)old_size, (size_t)new_size, MREMAP_FLAGS); -#endif - if (new_seg == (void *) MAP_FAILED) - new_seg = NULL; -#else -#error "Missing mseg_recreate() implementation" -#endif - } + if (MSEG_FLG_IS_2POW(flags)) + mmap_flags |= ERTS_MMAPFLG_SUPERALIGNED; + new_seg = erts_mremap(mmap_flags, old_seg, old_size, sizep); + +#ifdef ERTS_PRINT_ERTS_MMAP + erts_fprintf(stderr, "%p = erts_mremap(%s, %p, %bpu, {%bpu, %bpu});\n", + new_seg, (mmap_flags & ERTS_MMAPFLG_SUPERALIGNED) ? "sa" : "sua", + old_seg, old_size, req_size, *sizep); +#endif INC_CC(ma, recreate); return new_seg; } -#endif /* #if HAVE_MSEG_RECREATE */ - #ifdef DEBUG #define ERTS_DBG_MA_CHK_THR_ACCESS(MA) \ do { \ @@ -528,7 +408,7 @@ static ERTS_INLINE void mseg_cache_clear_node(cache_t *c) { c->prev = c; } -static ERTS_INLINE int cache_bless_segment(MemKind *mk, void *seg, Uint size, Uint flags) { +static ERTS_INLINE int cache_bless_segment(MemKind *mk, void *seg, UWord size, Uint flags) { cache_t *c; ERTS_DBG_MK_CHK_THR_ACCESS(mk); @@ -566,14 +446,13 @@ static ERTS_INLINE int cache_bless_segment(MemKind *mk, void *seg, Uint size, Ui return 1; } else if (!MSEG_FLG_IS_2POW(flags) && !erts_circleq_is_empty(&(mk->cache_unpowered_node))) { - /* No free slots. * Evict oldest slot from unpowered cache so we can cache an unpowered (sbc) segment */ c = erts_circleq_tail(&(mk->cache_unpowered_node)); erts_circleq_remove(c); - mseg_destroy(mk->ma, mk, c->seg, c->size); + mseg_destroy(mk->ma, ERTS_MSEG_FLG_NONE, mk, c->seg, c->size); mseg_cache_clear_node(c); c->seg = seg; @@ -599,7 +478,8 @@ static ERTS_INLINE int cache_bless_segment(MemKind *mk, void *seg, Uint size, Ui c = erts_circleq_tail(&(mk->cache_powered_node[i])); erts_circleq_remove(c); - mseg_destroy(mk->ma, mk, c->seg, c->size); + mseg_destroy(mk->ma, ERTS_MSEG_FLG_2POW, mk, c->seg, c->size); + mseg_cache_clear_node(c); c->seg = seg; @@ -614,18 +494,18 @@ static ERTS_INLINE int cache_bless_segment(MemKind *mk, void *seg, Uint size, Ui return 0; } -static ERTS_INLINE void *cache_get_segment(MemKind *mk, Uint *size_p, Uint flags) { +static ERTS_INLINE void *cache_get_segment(MemKind *mk, UWord *size_p, Uint flags) { - Uint size = *size_p; + UWord size = *size_p; ERTS_DBG_MK_CHK_THR_ACCESS(mk); if (MSEG_FLG_IS_2POW(flags)) { int i, ix = SIZE_TO_CACHE_AREA_IDX(size); - void *seg; + char *seg; cache_t *c; - Uint csize; + UWord csize; ASSERT(IS_2POW(size)); @@ -641,7 +521,7 @@ static ERTS_INLINE void *cache_get_segment(MemKind *mk, Uint *size_p, Uint flags ASSERT(MAP_IS_ALIGNED(c->seg)); csize = c->size; - seg = c->seg; + seg = (char*) c->seg; mk->cache_size--; mk->cache_hits++; @@ -652,9 +532,8 @@ static ERTS_INLINE void *cache_get_segment(MemKind *mk, Uint *size_p, Uint flags ASSERT(!(mk->cache_size < 0)); - if (csize != size) { - mseg_destroy(mk->ma, mk, (char *)seg + size, csize - size); - } + if (csize != size) + mseg_destroy(mk->ma, ERTS_MSEG_FLG_2POW, mk, seg + size, csize - size); return seg; } @@ -663,10 +542,10 @@ static ERTS_INLINE void *cache_get_segment(MemKind *mk, Uint *size_p, Uint flags void *seg; cache_t *c; cache_t *best = NULL; - Uint bdiff = 0; - Uint csize; - Uint bad_max_abs = mk->ma->abs_max_cache_bad_fit; - Uint bad_max_rel = mk->ma->rel_max_cache_bad_fit; + UWord bdiff = 0; + UWord csize; + UWord bad_max_abs = mk->ma->abs_max_cache_bad_fit; + UWord bad_max_rel = mk->ma->rel_max_cache_bad_fit; erts_circleq_foreach(c, &(mk->cache_unpowered_node)) { csize = c->size; @@ -728,7 +607,7 @@ static ERTS_INLINE void *cache_get_segment(MemKind *mk, Uint *size_p, Uint flags * using callbacks from aux-work in the scheduler. */ -static ERTS_INLINE Uint mseg_drop_one_memkind_cache_size(MemKind *mk, cache_t *head) { +static ERTS_INLINE Uint mseg_drop_one_memkind_cache_size(MemKind *mk, Uint flags, cache_t *head) { cache_t *c = NULL; c = erts_circleq_tail(head); @@ -737,7 +616,7 @@ static ERTS_INLINE Uint mseg_drop_one_memkind_cache_size(MemKind *mk, cache_t *h if (erts_mtrace_enabled) erts_mtrace_crr_free(SEGTYPE, SEGTYPE, c->seg); - mseg_destroy(mk->ma, mk, c->seg, c->size); + mseg_destroy(mk->ma, flags, mk, c->seg, c->size); mseg_cache_clear_node(c); erts_circleq_push_head(&(mk->cache_free), c); @@ -749,7 +628,7 @@ static ERTS_INLINE Uint mseg_drop_one_memkind_cache_size(MemKind *mk, cache_t *h return mk->cache_size; } -static ERTS_INLINE Uint mseg_drop_memkind_cache_size(MemKind *mk, cache_t *head) { +static ERTS_INLINE Uint mseg_drop_memkind_cache_size(MemKind *mk, Uint flags, cache_t *head) { cache_t *c = NULL; while (!erts_circleq_is_empty(head)) { @@ -760,7 +639,7 @@ static ERTS_INLINE Uint mseg_drop_memkind_cache_size(MemKind *mk, cache_t *head) if (erts_mtrace_enabled) erts_mtrace_crr_free(SEGTYPE, SEGTYPE, c->seg); - mseg_destroy(mk->ma, mk, c->seg, c->size); + mseg_destroy(mk->ma, flags, mk, c->seg, c->size); mseg_cache_clear_node(c); erts_circleq_push_head(&(mk->cache_free), c); @@ -788,11 +667,11 @@ static Uint mseg_check_memkind_cache(MemKind *mk) { for (i = 0; i < CACHE_AREAS; i++) { if (!erts_circleq_is_empty(&(mk->cache_powered_node[i]))) - return mseg_drop_one_memkind_cache_size(mk, &(mk->cache_powered_node[i])); + return mseg_drop_one_memkind_cache_size(mk, ERTS_MSEG_FLG_2POW, &(mk->cache_powered_node[i])); } if (!erts_circleq_is_empty(&(mk->cache_unpowered_node))) - return mseg_drop_one_memkind_cache_size(mk, &(mk->cache_unpowered_node)); + return mseg_drop_one_memkind_cache_size(mk, ERTS_MSEG_FLG_NONE, &(mk->cache_unpowered_node)); return 0; } @@ -851,12 +730,12 @@ static void mseg_clear_memkind_cache(MemKind *mk) { if (erts_circleq_is_empty(&(mk->cache_powered_node[i]))) continue; - mseg_drop_memkind_cache_size(mk, &(mk->cache_powered_node[i])); + mseg_drop_memkind_cache_size(mk, ERTS_MSEG_FLG_2POW, &(mk->cache_powered_node[i])); ASSERT(erts_circleq_is_empty(&(mk->cache_powered_node[i]))); } /* drop varied caches */ if (!erts_circleq_is_empty(&(mk->cache_unpowered_node))) - mseg_drop_memkind_cache_size(mk, &(mk->cache_unpowered_node)); + mseg_drop_memkind_cache_size(mk, ERTS_MSEG_FLG_NONE, &(mk->cache_unpowered_node)); ASSERT(erts_circleq_is_empty(&(mk->cache_unpowered_node))); ASSERT(mk->cache_size == 0); @@ -896,36 +775,35 @@ static ERTS_INLINE MemKind* memkind(ErtsMsegAllctr_t *ma, } static void * -mseg_alloc(ErtsMsegAllctr_t *ma, ErtsAlcType_t atype, Uint *size_p, +mseg_alloc(ErtsMsegAllctr_t *ma, ErtsAlcType_t atype, UWord *size_p, Uint flags, const ErtsMsegOpt_t *opt) { - Uint size; + UWord size; void *seg; MemKind* mk = memkind(ma, opt); INC_CC(ma, alloc); - /* Carrier align */ - size = ALIGNED_CEILING(*size_p); - - /* Cache optim (if applicable) */ - if (MSEG_FLG_IS_2POW(flags) && !IS_2POW(size)) - size = ceil_2pow(size); + if (!MSEG_FLG_IS_2POW(flags)) + size = ERTS_PAGEALIGNED_CEILING(*size_p); + else { + size = ALIGNED_CEILING(*size_p); + if (!IS_2POW(size)) { + /* Cache optim (if applicable) */ + size = ceil_2pow(size); + } + } -#if CAN_PARTLY_DESTROY - if (size < ma->min_seg_size) - ma->min_seg_size = size; -#endif - if (opt->cache && mk->cache_size > 0 && (seg = cache_get_segment(mk, &size, flags)) != NULL) goto done; - if ((seg = mseg_create(ma, mk, size)) == NULL) - size = 0; + seg = mseg_create(ma, flags, mk, &size); + if (!seg) + *size_p = 0; + else { done: - *size_p = size; - if (seg) { + *size_p = size; if (erts_mtrace_enabled) erts_mtrace_crr_alloc(seg, atype, ERTS_MTRACE_SEGMENT_ID, size); @@ -937,7 +815,7 @@ done: static void -mseg_dealloc(ErtsMsegAllctr_t *ma, ErtsAlcType_t atype, void *seg, Uint size, +mseg_dealloc(ErtsMsegAllctr_t *ma, ErtsAlcType_t atype, void *seg, UWord size, Uint flags, const ErtsMsegOpt_t *opt) { MemKind* mk = memkind(ma, opt); @@ -952,7 +830,7 @@ mseg_dealloc(ErtsMsegAllctr_t *ma, ErtsAlcType_t atype, void *seg, Uint size, if (erts_mtrace_enabled) erts_mtrace_crr_free(atype, SEGTYPE, seg); - mseg_destroy(ma, mk, seg, size); + mseg_destroy(ma, flags, mk, seg, size); done: @@ -961,11 +839,11 @@ done: static void * mseg_realloc(ErtsMsegAllctr_t *ma, ErtsAlcType_t atype, void *seg, - Uint old_size, Uint *new_size_p, Uint flags, const ErtsMsegOpt_t *opt) + UWord old_size, UWord *new_size_p, Uint flags, const ErtsMsegOpt_t *opt) { MemKind* mk; void *new_seg; - Uint new_size; + UWord new_size; /* Just allocate a new segment if we didn't have one before */ if (!seg || !old_size) { @@ -985,90 +863,47 @@ mseg_realloc(ErtsMsegAllctr_t *ma, ErtsAlcType_t atype, void *seg, mk = memkind(ma, opt); new_seg = seg; - /* Carrier align */ - new_size = ALIGNED_CEILING(*new_size_p); - - /* Cache optim (if applicable) */ - if (MSEG_FLG_IS_2POW(flags) && !IS_2POW(new_size)) - new_size = ceil_2pow(new_size); - - if (new_size == old_size) - ; - else if (new_size < old_size) { - Uint shrink_sz = old_size - new_size; + if (!MSEG_FLG_IS_2POW(flags)) + new_size = ERTS_PAGEALIGNED_CEILING(*new_size_p); + else { + new_size = ALIGNED_CEILING(*new_size_p); + if (!IS_2POW(new_size)) { + /* Cache optim (if applicable) */ + new_size = ceil_2pow(new_size); + } + } -#if CAN_PARTLY_DESTROY - if (new_size < ma->min_seg_size) - ma->min_seg_size = new_size; -#endif - /* +M<S>rsbcst <ratio> */ - if (shrink_sz < opt->abs_shrink_th - && 100*shrink_sz < opt->rel_shrink_th*old_size) { - new_size = old_size; + if (new_size > old_size) { + if (opt->preserv) { + new_seg = mseg_recreate(ma, flags, mk, (void *) seg, old_size, &new_size); + if (!new_seg) + new_size = old_size; } else { - -#if CAN_PARTLY_DESTROY - - if (erts_mtrace_enabled) - erts_mtrace_crr_realloc(new_seg, atype, SEGTYPE, seg, new_size); - - mseg_destroy(ma, mk, ((char *) seg) + new_size, shrink_sz); - -#elif HAVE_MSEG_RECREATE - goto do_recreate; -#else + mseg_dealloc(ma, atype, seg, old_size, flags, opt); new_seg = mseg_alloc(ma, atype, &new_size, flags, opt); - - ASSERT(MAP_IS_ALIGNED(new_seg) || !new_seg); - if (!new_seg) - new_size = old_size; - else { - sys_memcpy(((char *) new_seg), - ((char *) seg), - MIN(new_size, old_size)); - mseg_dealloc(ma, atype, seg, old_size, flags, opt); - } -#endif + new_size = 0; } } - else { + else if (new_size < old_size) { + UWord shrink_sz = old_size - new_size; - if (!opt->preserv) { - mseg_dealloc(ma, atype, seg, old_size, flags, opt); - new_seg = mseg_alloc(ma, atype, &new_size, flags, opt); - ASSERT(MAP_IS_ALIGNED(new_seg) || !new_seg); + /* +M<S>rsbcst <ratio> */ + if (shrink_sz < opt->abs_shrink_th + && 100*shrink_sz < opt->rel_shrink_th*old_size) { + new_size = old_size; } else { -#if HAVE_MSEG_RECREATE -#if !CAN_PARTLY_DESTROY - do_recreate: -#endif - new_seg = mseg_recreate(ma, mk, (void *) seg, old_size, new_size); - /* ASSERT(MAP_IS_ALIGNED(new_seg) || !new_seg); - * will not always be aligned and it ok for now - */ - - if (erts_mtrace_enabled) - erts_mtrace_crr_realloc(new_seg, atype, SEGTYPE, seg, new_size); + new_seg = mseg_recreate(ma, flags, mk, (void *) seg, old_size, &new_size); if (!new_seg) new_size = old_size; -#else - new_seg = mseg_alloc(ma, atype, &new_size, flags, opt); - - ASSERT(MAP_IS_ALIGNED(new_seg) || !new_seg); - - if (!new_seg) - new_size = old_size; - else { - sys_memcpy(((char *) new_seg), ((char *) seg), MIN(new_size, old_size)); - mseg_dealloc(ma, atype, seg, old_size, flags, opt); - } -#endif } } + if (erts_mtrace_enabled) + erts_mtrace_crr_realloc(new_seg, atype, SEGTYPE, seg, new_size); + INC_CC(ma, realloc); ASSERT(!MSEG_FLG_IS_2POW(flags) || IS_2POW(new_size)); @@ -1106,9 +941,7 @@ static struct { Eterm mseg_create; Eterm mseg_create_resize; Eterm mseg_destroy; -#if HAVE_MSEG_RECREATE Eterm mseg_recreate; -#endif Eterm mseg_clear_cache; Eterm mseg_check_cache; @@ -1129,8 +962,6 @@ init_atoms(ErtsMsegAllctr_t *ma) #ifdef DEBUG Eterm *atom; #endif - - ERTS_MSEG_UNLOCK(ma); erts_mtx_lock(&init_atoms_mutex); if (!atoms_initialized) { @@ -1163,9 +994,7 @@ init_atoms(ErtsMsegAllctr_t *ma) AM_INIT(mseg_create); AM_INIT(mseg_create_resize); AM_INIT(mseg_destroy); -#if HAVE_MSEG_RECREATE AM_INIT(mseg_recreate); -#endif AM_INIT(mseg_clear_cache); AM_INIT(mseg_check_cache); @@ -1176,7 +1005,6 @@ init_atoms(ErtsMsegAllctr_t *ma) #endif } - ERTS_MSEG_LOCK(ma); atoms_initialized = 1; erts_mtx_unlock(&init_atoms_mutex); } @@ -1239,7 +1067,9 @@ info_options(ErtsMsegAllctr_t *ma, Uint **hpp, Uint *szp) { - Eterm res = THE_NON_VALUE; + Eterm res; + + res = erts_mmap_info_options(prefix, print_to_p, print_to_arg, hpp, szp); if (print_to_p) { int to = *print_to_p; @@ -1254,7 +1084,6 @@ info_options(ErtsMsegAllctr_t *ma, if (!atoms_initialized) init_atoms(ma); - res = NIL; add_2tup(hpp, szp, &res, am.mcs, bld_uint(hpp, szp, ma->max_cache_size)); @@ -1293,9 +1122,7 @@ info_calls(ErtsMsegAllctr_t *ma, int *print_to_p, void *print_to_arg, Uint **hpp PRINT_CC(to, arg, create); PRINT_CC(to, arg, create_resize); PRINT_CC(to, arg, destroy); -#if HAVE_MSEG_RECREATE PRINT_CC(to, arg, recreate); -#endif PRINT_CC(to, arg, clear_cache); PRINT_CC(to, arg, check_cache); @@ -1316,12 +1143,10 @@ info_calls(ErtsMsegAllctr_t *ma, int *print_to_p, void *print_to_arg, Uint **hpp bld_unstable_uint(hpp, szp, ma->calls.clear_cache.giga_no), bld_unstable_uint(hpp, szp, ma->calls.clear_cache.no)); -#if HAVE_MSEG_RECREATE add_3tup(hpp, szp, &res, am.mseg_recreate, bld_unstable_uint(hpp, szp, ma->calls.recreate.giga_no), bld_unstable_uint(hpp, szp, ma->calls.recreate.no)); -#endif add_3tup(hpp, szp, &res, am.mseg_destroy, bld_unstable_uint(hpp, szp, ma->calls.destroy.giga_no), @@ -1465,14 +1290,8 @@ erts_mseg_info_options(int ix, ErtsMsegAllctr_t *ma = ERTS_MSEG_ALLCTR_IX(ix); Eterm res; - ERTS_MSEG_LOCK(ma); - - ERTS_DBG_MA_CHK_THR_ACCESS(ma); - res = info_options(ma, "option ", print_to_p, print_to_arg, hpp, szp); - ERTS_MSEG_UNLOCK(ma); - return res; } @@ -1490,10 +1309,6 @@ erts_mseg_info(int ix, Eterm values[4]; Uint n = 0; - ERTS_MSEG_LOCK(ma); - - ERTS_DBG_MA_CHK_THR_ACCESS(ma); - if (hpp || szp) { if (!atoms_initialized) @@ -1506,6 +1321,10 @@ erts_mseg_info(int ix, } values[n++] = info_version(ma, print_to_p, print_to_arg, hpp, szp); values[n++] = info_options(ma, "option ", print_to_p, print_to_arg, hpp, szp); + + ERTS_MSEG_LOCK(ma); + ERTS_DBG_MA_CHK_THR_ACCESS(ma); + #if HALFWORD_HEAP values[n++] = info_memkind(ma, &ma->low_mem, print_to_p, print_to_arg, begin_max_per, hpp, szp); values[n++] = info_memkind(ma, &ma->hi_mem, print_to_p, print_to_arg, begin_max_per, hpp, szp); @@ -1521,7 +1340,7 @@ erts_mseg_info(int ix, } void * -erts_mseg_alloc_opt(ErtsAlcType_t atype, Uint *size_p, Uint flags, const ErtsMsegOpt_t *opt) +erts_mseg_alloc_opt(ErtsAlcType_t atype, UWord *size_p, Uint flags, const ErtsMsegOpt_t *opt) { ErtsMsegAllctr_t *ma = ERTS_MSEG_ALLCTR_OPT(opt); void *seg; @@ -1529,20 +1348,23 @@ erts_mseg_alloc_opt(ErtsAlcType_t atype, Uint *size_p, Uint flags, const ErtsMse ERTS_DBG_MA_CHK_THR_ACCESS(ma); seg = mseg_alloc(ma, atype, size_p, flags, opt); ERTS_MSEG_UNLOCK(ma); + HARD_DBG_INSERT_MSEG(seg, *size_p); return seg; } void * -erts_mseg_alloc(ErtsAlcType_t atype, Uint *size_p, Uint flags) +erts_mseg_alloc(ErtsAlcType_t atype, UWord *size_p, Uint flags) { return erts_mseg_alloc_opt(atype, size_p, flags, &erts_mseg_default_opt); } void erts_mseg_dealloc_opt(ErtsAlcType_t atype, void *seg, - Uint size, Uint flags, const ErtsMsegOpt_t *opt) + UWord size, Uint flags, const ErtsMsegOpt_t *opt) { ErtsMsegAllctr_t *ma = ERTS_MSEG_ALLCTR_OPT(opt); + + HARD_DBG_REMOVE_MSEG(seg, size); ERTS_MSEG_LOCK(ma); ERTS_DBG_MA_CHK_THR_ACCESS(ma); mseg_dealloc(ma, atype, seg, size, flags, opt); @@ -1550,29 +1372,32 @@ erts_mseg_dealloc_opt(ErtsAlcType_t atype, void *seg, } void -erts_mseg_dealloc(ErtsAlcType_t atype, void *seg, Uint size, Uint flags) +erts_mseg_dealloc(ErtsAlcType_t atype, void *seg, UWord size, Uint flags) { erts_mseg_dealloc_opt(atype, seg, size, flags, &erts_mseg_default_opt); } void * erts_mseg_realloc_opt(ErtsAlcType_t atype, void *seg, - Uint old_size, Uint *new_size_p, + UWord old_size, UWord *new_size_p, Uint flags, const ErtsMsegOpt_t *opt) { ErtsMsegAllctr_t *ma = ERTS_MSEG_ALLCTR_OPT(opt); void *new_seg; + + HARD_DBG_REMOVE_MSEG(seg, old_size); ERTS_MSEG_LOCK(ma); ERTS_DBG_MA_CHK_THR_ACCESS(ma); new_seg = mseg_realloc(ma, atype, seg, old_size, new_size_p, flags, opt); ERTS_MSEG_UNLOCK(ma); + HARD_DBG_INSERT_MSEG(new_seg, *new_size_p); return new_seg; } void * erts_mseg_realloc(ErtsAlcType_t atype, void *seg, - Uint old_size, Uint *new_size_p, Uint flags) + UWord old_size, UWord *new_size_p, Uint flags) { return erts_mseg_realloc_opt(atype, seg, old_size, new_size_p, flags, &erts_mseg_default_opt); @@ -1662,16 +1487,17 @@ erts_mseg_init(ErtsMsegInit_t *init) erts_mtx_init(&init_atoms_mutex, "mseg_init_atoms"); -#if HAVE_MMAP && !defined(MAP_ANON) - mmap_fd = open("/dev/zero", O_RDWR); - if (mmap_fd < 0) - erl_exit(ERTS_ABORT_EXIT, "erts_mseg: unable to open /dev/zero\n"); -#endif +#if HALFWORD_HEAP + if (sizeof(void *) != 8) + erl_exit(-1,"Halfword emulator cannot be run in 32bit mode"); -#if HAVE_MMAP && HALFWORD_HEAP - initialize_pmmap(); + init->mmap.virtual_range.start = (char *) sbrk(0); + init->mmap.virtual_range.end = (char *) 0x100000000UL; + init->mmap.sco = 0; #endif + erts_mmap_init(&init->mmap); + if (!IS_2POW(GET_PAGE_SIZE)) erl_exit(ERTS_ABORT_EXIT, "erts_mseg: Unexpected page_size %beu\n", GET_PAGE_SIZE); @@ -1712,10 +1538,6 @@ erts_mseg_init(ErtsMsegInit_t *init) #endif sys_memzero((void *) &ma->calls, sizeof(ErtsMsegCalls)); - -#if CAN_PARTLY_DESTROY - ma->min_seg_size = ~((Uint) 0); -#endif } } @@ -1757,7 +1579,7 @@ erts_mseg_test(UWord op, UWord a1, UWord a2, UWord a3) case 0x400: /* Have erts_mseg */ return (UWord) 1; case 0x401: - return (UWord) erts_mseg_alloc(ERTS_ALC_A_INVALID, (Uint *) a1, (Uint) 0); + return (UWord) erts_mseg_alloc(ERTS_ALC_A_INVALID, (UWord *) a1, (Uint) 0); case 0x402: erts_mseg_dealloc(ERTS_ALC_A_INVALID, (void *) a1, (Uint) a2, (Uint) 0); return (UWord) 0; @@ -1765,7 +1587,7 @@ erts_mseg_test(UWord op, UWord a1, UWord a2, UWord a3) return (UWord) erts_mseg_realloc(ERTS_ALC_A_INVALID, (void *) a1, (Uint) a2, - (Uint *) a3, + (UWord *) a3, (Uint) 0); case 0x404: erts_mseg_clear_cache(); @@ -1788,405 +1610,3 @@ erts_mseg_test(UWord op, UWord a1, UWord a2, UWord a3) } } - - -#if HALFWORD_HEAP -/* - * Very simple page oriented mmap replacer. Works in the lower - * 32 bit address range of a 64bit program. - * Implements anonymous mmap mremap and munmap with address order first fit. - * The free list is expected to be very short... - * To be used for compressed pointers in Erlang halfword emulator - * implementation. The MacOS X version is more of a toy, it's not really - * for production as the halfword erlang VM relies on Linux specific memory - * mapping tricks. - */ - -/* #define HARDDEBUG 1 */ - -#ifdef HARDDEBUG -static void dump_freelist(void) -{ - FreeBlock *p = first; - - while (p) { - fprintf(stderr, "p = %p\r\np->num = %ld\r\np->next = %p\r\n\r\n", - (void *) p, (unsigned long) p->num, (void *) p->next); - p = p->next; - } -} - -#define HARDDEBUG_HW_INCOMPLETE_ALIGNMENT(PTR, SZ) \ - fprintf(stderr,"Mapping of address %p with size %ld " \ - "does not map complete pages (%s:%d)\r\n", \ - (void *) (PTR), (unsigned long) (SZ),__FILE__, __LINE__) - -#define HARDDEBUG_HW_UNALIGNED_ALIGNMENT(PTR, SZ) \ - fprintf(stderr,"Mapping of address %p with size %ld " \ - "is not page aligned (%s:%d)\r\n", \ - (void *) (PTR), (unsigned long) (SZ),__FILE__, __LINE__) - -#define HARDDEBUG_MAP_FAILED(PTR, SZ) \ - fprintf(stderr, "Could not actually map memory " \ - "at address %p with size %ld (%s:%d) ..\r\n", \ - (void *) (PTR), (unsigned long) (SZ),__FILE__, __LINE__) -#else -#define HARDDEBUG_HW_INCOMPLETE_ALIGNMENT(PTR, SZ) do{}while(0) -#define HARDDEBUG_HW_UNALIGNED_ALIGNMENT(PTR, SZ) do{}while(0) -#define HARDDEBUG_MAP_FAILED(PTR, SZ) do{}while(0) -#endif - - -#ifdef __APPLE__ -#define MAP_ANONYMOUS MAP_ANON -#endif - -#define INIT_LOCK() do {erts_mtx_init(&pmmap_mutex, "pmmap");} while(0) - -#define TAKE_LOCK() do {erts_mtx_lock(&pmmap_mutex);} while(0) - -#define RELEASE_LOCK() do {erts_mtx_unlock(&pmmap_mutex);} while(0) - -static erts_mtx_t pmmap_mutex; /* Also needed when !USE_THREADS */ - -typedef struct _free_block { - unsigned long num; /*pages*/ - struct _free_block *next; -} FreeBlock; - -/* Protect with lock */ -static FreeBlock *first; - -static void *do_map(void *ptr, size_t sz) -{ - void *res; - - if (ALIGNED_CEILING(sz) != sz) { - HARDDEBUG_HW_INCOMPLETE_ALIGNMENT(ptr, sz); - return NULL; - } - - if (((unsigned long) ptr) % MSEG_ALIGNED_SIZE) { - HARDDEBUG_HW_UNALIGNED_ALIGNMENT(ptr, sz); - return NULL; - } - -#if HAVE_MMAP - res = mmap(ptr, sz, - PROT_READ | PROT_WRITE, MAP_PRIVATE | - MAP_ANONYMOUS | MAP_FIXED, - -1 , 0); -#else -# error "Missing mmap support" -#endif - - if (res == MAP_FAILED) { - HARDDEBUG_MAP_FAILED(ptr, sz); - return NULL; - } - - return res; -} - -static int do_unmap(void *ptr, size_t sz) -{ - void *res; - - if (ALIGNED_CEILING(sz) != sz) { - HARDDEBUG_HW_INCOMPLETE_ALIGNMENT(ptr, sz); - return 1; - } - - if (((unsigned long) ptr) % MSEG_ALIGNED_SIZE) { - HARDDEBUG_HW_UNALIGNED_ALIGNMENT(ptr, sz); - return 1; - } - - res = mmap(ptr, sz, - PROT_NONE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_NORESERVE | MAP_FIXED, - -1 , 0); - - if (res == MAP_FAILED) { - HARDDEBUG_MAP_FAILED(ptr, sz); - return 1; - } - - return 0; -} - -#ifdef __APPLE__ -/* - * The first 4 gig's are protected on Macos X for 64bit processes :( - * The range 0x1000000000 - 0x10FFFFFFFF is selected as an arbitrary - * value of a normally unused range... Real MMAP's will avoid - * it and all 32bit compressed pointers can be in that range... - * More expensive than on Linux where expansion of compressed - * poiters involves no masking (as they are in the first 4 gig's). - * It's also very uncertain if the MAP_NORESERVE flag really has - * any effect in MacOS X. Swap space may always be allocated... - */ -#define SET_RANGE_MIN() /* nothing */ -#define RANGE_MIN 0x1000000000UL -#define RANGE_MAX 0x1100000000UL -#define RANGE_MASK (RANGE_MIN) -#define EXTRA_MAP_FLAGS (MAP_FIXED) -#else -static size_t range_min; -#define SET_RANGE_MIN() do { range_min = (size_t) sbrk(0); } while (0) -#define RANGE_MIN range_min -#define RANGE_MAX 0x100000000UL -#define RANGE_MASK 0UL -#define EXTRA_MAP_FLAGS (0) -#endif - -static int initialize_pmmap(void) -{ - char *p,*q,*rptr; - size_t rsz; - FreeBlock *initial; - - SET_RANGE_MIN(); - if (sizeof(void *) != 8) { - erl_exit(1,"Halfword emulator cannot be run in 32bit mode"); - } - - p = (char *) RANGE_MIN; - q = (char *) RANGE_MAX; - - rsz = ALIGNED_FLOOR(q - p); - - rptr = mmap_align(NULL, (void *) p, rsz, - PROT_NONE, MAP_PRIVATE | MAP_ANONYMOUS | - MAP_NORESERVE | EXTRA_MAP_FLAGS, - -1 , 0); -#ifdef HARDDEBUG - printf("p=%p, rsz = %ld, pages = %ld, got range = %p -> %p\r\n", - p, (unsigned long) rsz, (unsigned long) (rsz / MSEG_ALIGNED_SIZE), - (void *) rptr, (void*)(rptr + rsz)); -#endif - if ((UWord)(rptr + rsz) > RANGE_MAX) { - size_t rsz_trunc = RANGE_MAX - (UWord)rptr; -#ifdef HARDDEBUG - printf("Reducing mmap'ed memory from %lu to %lu Mb, reduced range = %p -> %p\r\n", - rsz/(1024*1024), rsz_trunc/(1024*1024), rptr, rptr+rsz_trunc); -#endif - munmap((void*)RANGE_MAX, rsz - rsz_trunc); - rsz = rsz_trunc; - } - if (!do_map(rptr, MSEG_ALIGNED_SIZE)) { - erl_exit(1,"Could not actually mmap first page for halfword emulator...\n"); - } - initial = (FreeBlock *) rptr; - initial->num = (rsz / MSEG_ALIGNED_SIZE); - initial->next = NULL; - first = initial; - INIT_LOCK(); - return 0; -} - -static void *pmmap(size_t size) -{ - size_t real_size = ALIGNED_CEILING(size); - size_t num_pages = real_size / MSEG_ALIGNED_SIZE; - FreeBlock **block; - FreeBlock *tail; - FreeBlock *res; - - TAKE_LOCK(); - - for (block = &first; - *block != NULL && (*block)->num < num_pages; - block = &((*block)->next)) - ; - if (!(*block)) { - RELEASE_LOCK(); - return NULL; - } - if ((*block)->num == num_pages) { - /* nice, perfect fit */ - res = *block; - *block = (*block)->next; - } else { - tail = (FreeBlock *) (((char *) ((void *) (*block))) + real_size); - if (!do_map(tail, MSEG_ALIGNED_SIZE)) { - HARDDEBUG_MAP_FAILED(tail, MSEG_ALIGNED_SIZE); - RELEASE_LOCK(); - return NULL; - } - tail->num = (*block)->num - num_pages; - tail->next = (*block)->next; - res = *block; - *block = tail; - } - - RELEASE_LOCK(); - - if (!do_map(res, real_size)) { - HARDDEBUG_MAP_FAILED(res, real_size); - return NULL; - } - - return (void *) res; -} - -static int pmunmap(void *p, size_t size) -{ - size_t real_size = ALIGNED_CEILING(size); - size_t num_pages = real_size / MSEG_ALIGNED_SIZE; - - FreeBlock *block; - FreeBlock *last; - FreeBlock *nb = (FreeBlock *) p; - - ASSERT(((unsigned long)p & CHECK_POINTER_MASK)==0); - - if (real_size > MSEG_ALIGNED_SIZE) { - if (do_unmap(((char *) p) + MSEG_ALIGNED_SIZE, real_size - MSEG_ALIGNED_SIZE)) { - return 1; - } - } - - TAKE_LOCK(); - - last = NULL; - block = first; - while(block != NULL && ((void *) block) < p) { - last = block; - block = block->next; - } - - if (block != NULL && - ((void *) block) == ((void *) (((char *) p) + real_size))) { - /* Merge new free block with following */ - nb->num = block->num + num_pages; - nb->next = block->next; - if (do_unmap(block, MSEG_ALIGNED_SIZE)) { - RELEASE_LOCK(); - return 1; - } - } else { - /* just link in */ - nb->num = num_pages; - nb->next = block; - } - if (last != NULL) { - if (p == ((void *) (((char *) last) + (last->num * MSEG_ALIGNED_SIZE)))) { - /* Merge with previous */ - last->num += nb->num; - last->next = nb->next; - if (do_unmap(nb, MSEG_ALIGNED_SIZE)) { - RELEASE_LOCK(); - return 1; - } - } else { - last->next = nb; - } - } else { - first = nb; - } - RELEASE_LOCK(); - return 0; -} - -static void *pmremap(void *old_address, size_t old_size, - size_t new_size) -{ - size_t new_real_size = ALIGNED_CEILING(new_size); - size_t new_num_pages = new_real_size / MSEG_ALIGNED_SIZE; - size_t old_real_size = ALIGNED_CEILING(old_size); - size_t old_num_pages = old_real_size / MSEG_ALIGNED_SIZE; - if (new_num_pages == old_num_pages) { - return old_address; - } else if (new_num_pages < old_num_pages) { /* Shrink */ - size_t nfb_pages = old_num_pages - new_num_pages; - size_t nfb_real_size = old_real_size - new_real_size; - void *vnfb = (void *) (((char *)old_address) + new_real_size); - FreeBlock *nfb = (FreeBlock *) vnfb; - FreeBlock **block; - TAKE_LOCK(); - for (block = &first; - *block != NULL && (*block) < nfb; - block = &((*block)->next)) - ; - if (!(*block) || - (*block) > ((FreeBlock *)(((char *) vnfb) + nfb_real_size))) { - /* Normal link in */ - if (nfb_pages > 1) { - if (do_unmap((void *)(((char *) vnfb) + MSEG_ALIGNED_SIZE), - (nfb_pages - 1)*MSEG_ALIGNED_SIZE)) { - return NULL; - } - } - nfb->next = (*block); - nfb->num = nfb_pages; - (*block) = nfb; - } else { /* block merge */ - nfb->next = (*block)->next; - nfb->num = nfb_pages + (*block)->num; - /* unmap also the first page of the next freeblock */ - (*block) = nfb; - if (do_unmap((void *)(((char *) vnfb) + MSEG_ALIGNED_SIZE), - nfb_pages*MSEG_ALIGNED_SIZE)) { - return NULL; - } - } - RELEASE_LOCK(); - return old_address; - } else { /* Enlarge */ - FreeBlock **block; - void *old_end = (void *) (((char *)old_address) + old_real_size); - TAKE_LOCK(); - for (block = &first; - *block != NULL && (*block) < (FreeBlock *) old_address; - block = &((*block)->next)) - ; - if ((*block) == NULL || old_end > ((void *) RANGE_MAX) || - (*block) != old_end || - (*block)->num < (new_num_pages - old_num_pages)) { - /* cannot extend */ - void *result; - RELEASE_LOCK(); - result = pmmap(new_size); - if (result == NULL) { - return NULL; - } - memcpy(result,old_address,old_size); - if (pmunmap(old_address,old_size)) { - /* Oups... */ - pmunmap(result,new_size); - return NULL; - } - return result; - } else { /* extend */ - size_t remaining_pages = (*block)->num - - (new_num_pages - old_num_pages); - if (!remaining_pages) { - void *p = (void *) (((char *) (*block)) + MSEG_ALIGNED_SIZE); - void *n = (*block)->next; - size_t x = ((*block)->num - 1) * MSEG_ALIGNED_SIZE; - if (x > 0) { - if (do_map(p,x) == NULL) { - RELEASE_LOCK(); - return NULL; - } - } - (*block) = n; - } else { - FreeBlock *nfb = (FreeBlock *) ((void *) - (((char *) old_address) + - new_real_size)); - void *p = (void *) (((char *) (*block)) + MSEG_ALIGNED_SIZE); - if (do_map(p,new_real_size - old_real_size) == NULL) { - RELEASE_LOCK(); - return NULL; - } - nfb->num = remaining_pages; - nfb->next = (*block)->next; - (*block) = nfb; - } - RELEASE_LOCK(); - return old_address; - } - } -} -#endif /* HALFWORD_HEAP */ diff --git a/erts/emulator/sys/common/erl_mseg.h b/erts/emulator/sys/common/erl_mseg.h index a1b000f51c..2284b3f8f1 100644 --- a/erts/emulator/sys/common/erl_mseg.h +++ b/erts/emulator/sys/common/erl_mseg.h @@ -22,15 +22,16 @@ #include "sys.h" #include "erl_alloc_types.h" +#include "erl_mmap.h" -#ifndef HAVE_MMAP -# define HAVE_MMAP 0 -#endif -#ifndef HAVE_MREMAP -# define HAVE_MREMAP 0 -#endif - -#if HAVE_MMAP +/* + * We currently only enable mseg_alloc if we got + * a genuine mmap()/munmap() primitive. It is possible + * to utilize erts_mmap() withiout a mmap support but + * alloc_util needs to be prepared before we can do + * that. + */ +#ifdef ERTS_HAVE_GENUINE_OS_MMAP # define HAVE_ERTS_MSEG 1 # define ERTS_HAVE_MSEG_SUPER_ALIGNED 1 #else @@ -39,8 +40,7 @@ #endif #if ERTS_HAVE_MSEG_SUPER_ALIGNED -# define MSEG_ALIGN_BITS (18) - /* Affects hard limits for sbct and lmbcs documented in erts_alloc.xml */ +# define MSEG_ALIGN_BITS ERTS_MMAP_SUPERALIGNED_BITS #else /* If we don't use super aligned multiblock carriers * we will mmap with page size alignment (and thus use corresponding @@ -68,6 +68,7 @@ typedef struct { Uint rmcbf; Uint mcs; Uint nos; + ErtsMMapInit mmap; } ErtsMsegInit_t; #define ERTS_MSEG_INIT_DEFAULT_INITIALIZER \ @@ -75,7 +76,8 @@ typedef struct { 4*1024*1024, /* amcbf: Absolute max cache bad fit */ \ 20, /* rmcbf: Relative max cache bad fit */ \ 10, /* mcs: Max cache size */ \ - 1000 /* cci: Cache check interval */ \ + 1000, /* cci: Cache check interval */ \ + ERTS_MMAP_INIT_DEFAULT_INITER \ } typedef struct { @@ -91,12 +93,12 @@ typedef struct { extern const ErtsMsegOpt_t erts_mseg_default_opt; -void *erts_mseg_alloc(ErtsAlcType_t, Uint *, Uint); -void *erts_mseg_alloc_opt(ErtsAlcType_t, Uint *, Uint, const ErtsMsegOpt_t *); -void erts_mseg_dealloc(ErtsAlcType_t, void *, Uint, Uint); -void erts_mseg_dealloc_opt(ErtsAlcType_t, void *, Uint, Uint, const ErtsMsegOpt_t *); -void *erts_mseg_realloc(ErtsAlcType_t, void *, Uint, Uint *, Uint); -void *erts_mseg_realloc_opt(ErtsAlcType_t, void *, Uint, Uint *, Uint, const ErtsMsegOpt_t *); +void *erts_mseg_alloc(ErtsAlcType_t, UWord *, Uint); +void *erts_mseg_alloc_opt(ErtsAlcType_t, UWord *, Uint, const ErtsMsegOpt_t *); +void erts_mseg_dealloc(ErtsAlcType_t, void *, UWord, Uint); +void erts_mseg_dealloc_opt(ErtsAlcType_t, void *, UWord, Uint, const ErtsMsegOpt_t *); +void *erts_mseg_realloc(ErtsAlcType_t, void *, UWord, UWord *, Uint); +void *erts_mseg_realloc_opt(ErtsAlcType_t, void *, UWord, UWord *, Uint, const ErtsMsegOpt_t *); void erts_mseg_clear_cache(void); void erts_mseg_cache_check(void); Uint erts_mseg_no( const ErtsMsegOpt_t *); diff --git a/erts/emulator/sys/unix/sys.c b/erts/emulator/sys/unix/sys.c index fdc3167c62..61f9f6a59a 100644 --- a/erts/emulator/sys/unix/sys.c +++ b/erts/emulator/sys/unix/sys.c @@ -2489,6 +2489,16 @@ erts_sys_getenv(char *key, char *value, size_t *size) return res; } +int +erts_sys_unsetenv(char *key) +{ + int res; + erts_smp_rwmtx_rwlock(&environ_rwmtx); + res = unsetenv(key); + erts_smp_rwmtx_rwunlock(&environ_rwmtx); + return res; +} + void sys_init_io(void) { @@ -2638,15 +2648,13 @@ int fd; } -#ifdef DEBUG - extern int erts_initialized; void -erl_assert_error(char* expr, char* file, int line) +erl_assert_error(const char* expr, const char* func, const char* file, int line) { fflush(stdout); - fprintf(stderr, "Assertion failed: %s in %s, line %d\n", - expr, file, line); + fprintf(stderr, "%s:%d:%s() Assertion failed: %s\n", + file, line, func, expr); fflush(stderr); #if !defined(ERTS_SMP) && 0 /* Writing a crashdump from a failed assertion when smp support @@ -2661,6 +2669,8 @@ erl_assert_error(char* expr, char* file, int line) abort(); } +#ifdef DEBUG + void erl_debug(char* fmt, ...) { diff --git a/erts/emulator/sys/win32/erl_win_sys.h b/erts/emulator/sys/win32/erl_win_sys.h index c44c5d9492..0deb097b1a 100644 --- a/erts/emulator/sys/win32/erl_win_sys.h +++ b/erts/emulator/sys/win32/erl_win_sys.h @@ -82,7 +82,6 @@ #define NO_ERF #define NO_ERFC -#define NO_SYSLOG #define NO_SYSCONF #define NO_DAEMON #define NO_PWD diff --git a/erts/emulator/sys/win32/sys.c b/erts/emulator/sys/win32/sys.c index 6a1d6b08f4..99951bb45e 100755 --- a/erts/emulator/sys/win32/sys.c +++ b/erts/emulator/sys/win32/sys.c @@ -3224,7 +3224,7 @@ erl_bin_write(buf, sz, max) } void -erl_assert_error(char* expr, char* file, int line) +erl_assert_error(const char* expr, const char* func, const char* file, int line) { char message[1024]; diff --git a/erts/emulator/sys/win32/sys_env.c b/erts/emulator/sys/win32/sys_env.c index 754f4c6e4c..9f977ad6c8 100644 --- a/erts/emulator/sys/win32/sys_env.c +++ b/erts/emulator/sys/win32/sys_env.c @@ -141,6 +141,24 @@ void fini_getenv_state(GETENV_STATE *state) erts_smp_rwmtx_runlock(&environ_rwmtx);
}
+int erts_sys_unsetenv(char *key)
+{
+ int res = 0;
+ WCHAR *wkey = (WCHAR *) key;
+
+ SetLastError(0);
+ erts_smp_rwmtx_rlock(&environ_rwmtx);
+ GetEnvironmentVariableW(wkey,
+ NULL,
+ 0);
+ if (GetLastError() != ERROR_ENVVAR_NOT_FOUND) {
+ res = (SetEnvironmentVariableW(wkey,
+ NULL) ? 0 : 1);
+ }
+ erts_smp_rwmtx_runlock(&environ_rwmtx);
+ return res;
+}
+
char*
win_build_environment(char* new_env)
{
diff --git a/erts/emulator/test/alloc_SUITE.erl b/erts/emulator/test/alloc_SUITE.erl index 801ed0f85a..cd2d043f7e 100644 --- a/erts/emulator/test/alloc_SUITE.erl +++ b/erts/emulator/test/alloc_SUITE.erl @@ -29,6 +29,7 @@ bucket_mask/1, rbtree/1, mseg_clear_cache/1, + erts_mmap/1, cpool/1]). -export([init_per_testcase/2, end_per_testcase/2]). @@ -41,7 +42,7 @@ suite() -> [{ct_hooks,[ts_install_cth]}]. all() -> [basic, coalesce, threads, realloc_copy, bucket_index, - bucket_mask, rbtree, mseg_clear_cache, cpool]. + bucket_mask, rbtree, mseg_clear_cache, erts_mmap, cpool]. groups() -> []. @@ -110,6 +111,59 @@ cpool(suite) -> []; cpool(doc) -> []; cpool(Cfg) -> ?line drv_case(Cfg). +erts_mmap(Config) when is_list(Config) -> + case {?t:os_type(), is_halfword_vm()} of + {{unix, _}, false} -> + [erts_mmap_do(Config, SCO, SCRPM, SCRFSD) + || SCO <-[true,false], SCRFSD <-[1234,0], SCRPM <- [true,false]]; + + {_,true} -> + {skipped, "No supercarrier support on halfword vm"}; + {SkipOs,_} -> + ?line {skipped, + lists:flatten(["Not run on " + | io_lib:format("~p",[SkipOs])])} + end. + + +erts_mmap_do(Config, SCO, SCRPM, SCRFSD) -> + SCS = 100, % Mb + O1 = "+MMscs" ++ integer_to_list(SCS) + ++ " +MMsco" ++ atom_to_list(SCO) + ++ " +MMscrpm" ++ atom_to_list(SCRPM), + Opts = case SCRFSD of + 0 -> O1; + _ -> O1 ++ " +MMscrfsd"++integer_to_list(SCRFSD) + end, + {ok, Node} = start_node(Config, Opts), + Self = self(), + Ref = make_ref(), + F = fun () -> + SI = erlang:system_info({allocator,mseg_alloc}), + {erts_mmap,EM} = lists:keyfind(erts_mmap, 1, SI), + {supercarrier,SC} = lists:keyfind(supercarrier, 1, EM), + {sizes,Sizes} = lists:keyfind(sizes, 1, SC), + {free_segs,Segs} = lists:keyfind(free_segs,1,SC), + {total,Total} = lists:keyfind(total,1,Sizes), + Total = SCS*1024*1024, + + {reserved,Reserved} = lists:keyfind(reserved,1,Segs), + true = (Reserved >= SCRFSD), + + case {SCO,lists:keyfind(os,1,EM)} of + {true, false} -> ok; + {false, {os,_}} -> ok + end, + + Self ! {Ref, ok} + end, + + spawn_link(Node, F), + Result = receive {Ref, Rslt} -> Rslt end, + stop_node(Node), + Result. + + %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %% %% %% Internal functions %% @@ -179,7 +233,9 @@ receive_drv_result(Port, CaseName) -> ?line {comment, Comment} end. -start_node(Config) when is_list(Config) -> +start_node(Config) -> + start_node(Config, []). +start_node(Config, Opts) when is_list(Config), is_list(Opts) -> ?line Pa = filename:dirname(code:which(?MODULE)), ?line {A, B, C} = now(), ?line Name = list_to_atom(atom_to_list(?MODULE) @@ -191,7 +247,14 @@ start_node(Config) when is_list(Config) -> ++ integer_to_list(B) ++ "-" ++ integer_to_list(C)), - ?line ?t:start_node(Name, slave, [{args, "-pa "++Pa}]). + ?line ?t:start_node(Name, slave, [{args, Opts++" -pa "++Pa}]). stop_node(Node) -> ?t:stop_node(Node). + +is_halfword_vm() -> + case {erlang:system_info({wordsize, internal}), + erlang:system_info({wordsize, external})} of + {4, 8} -> true; + {WS, WS} -> false + end. diff --git a/erts/emulator/test/bif_SUITE.erl b/erts/emulator/test/bif_SUITE.erl index 02c6de8cb1..fbc229bc53 100644 --- a/erts/emulator/test/bif_SUITE.erl +++ b/erts/emulator/test/bif_SUITE.erl @@ -388,8 +388,12 @@ os_env(Config) when is_list(Config) -> false -> ?line ok; BadVal -> ?line ?t:fail(BadVal) end, - %% os:putenv and os:getenv currently uses a temp buf of size 1024 - %% for storing key+value + true = os:putenv(EnvVar1, "mors"), + true = os:unsetenv(EnvVar1), + false = os:getenv(EnvVar1), + true = os:unsetenv(EnvVar1), % unset unset variable + %% os:putenv, os:getenv and os:unsetenv currently use a temp + %% buffer of size 1024 for storing key+value ?line os_env_long(1010, 1030, "hej hopp"). os_env_long(Min, Max, _Value) when Min > Max -> @@ -398,7 +402,7 @@ os_env_long(Min, Max, Value) -> ?line EnvVar = lists:duplicate(Min, $X), ?line true = os:putenv(EnvVar, Value), ?line Value = os:getenv(EnvVar), - ?line true = os:putenv(EnvVar, ""), + true = os:unsetenv(EnvVar), ?line os_env_long(Min+1, Max, Value). otp_7526(doc) -> diff --git a/erts/emulator/test/big_SUITE_data/eq_big.dat b/erts/emulator/test/big_SUITE_data/eq_big.dat index 5511d1bf10..4ccb33d182 100644 --- a/erts/emulator/test/big_SUITE_data/eq_big.dat +++ b/erts/emulator/test/big_SUITE_data/eq_big.dat @@ -13001,4 +13001,5 @@ 0 = 7153697524993 bsr 475833444444444444444444444444444444444444444444. -1 = -83987348 bsr 475833444444444444444444444444444444444444444444. +0 = 1183140560213014108063589658350 bsr 146783911423364576743092537299333564210980159306769991919205685720763064069663027716481187399048043939495935. diff --git a/erts/emulator/test/call_trace_SUITE.erl b/erts/emulator/test/call_trace_SUITE.erl index eaecd32f95..ef1f2aa04c 100644 --- a/erts/emulator/test/call_trace_SUITE.erl +++ b/erts/emulator/test/call_trace_SUITE.erl @@ -1193,7 +1193,7 @@ bs_sum_b(Acc, <<>>) -> Acc. - + %%% Help functions. expect() -> diff --git a/erts/emulator/test/driver_SUITE.erl b/erts/emulator/test/driver_SUITE.erl index 104bdf8aec..7087542899 100644 --- a/erts/emulator/test/driver_SUITE.erl +++ b/erts/emulator/test/driver_SUITE.erl @@ -367,7 +367,7 @@ compare(Got, Expected) -> ?t:fail(got_bad_data) end. - + %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %% Driver timer test suites %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% @@ -515,7 +515,7 @@ try_change_timer(Port, Timeout) -> ?line test_server:fail("driver failed to timeout") end. - + %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %% Queue test suites %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% @@ -719,7 +719,7 @@ deq(Port, Size) -> read_head(Port, Size) -> erlang:port_control(Port, ?READ_HEAD, <<Size:32>>). - + driver_unloaded(doc) -> []; driver_unloaded(suite) -> diff --git a/erts/emulator/test/hash_SUITE.erl b/erts/emulator/test/hash_SUITE.erl index 43c9d64af7..738c9c8b16 100644 --- a/erts/emulator/test/hash_SUITE.erl +++ b/erts/emulator/test/hash_SUITE.erl @@ -32,7 +32,7 @@ %% -module(hash_SUITE). -export([basic_test/0,cmp_test/1,range_test/0,spread_test/1, - phash2_test/0, otp_5292_test/0, bit_level_binaries/0, + phash2_test/0, otp_5292_test/0, otp_7127_test/0]). -compile({nowarn_deprecated_function, {erlang,hash,2}}). @@ -152,7 +152,7 @@ otp_5292(Config) when is_list(Config) -> %% Test hashing bit-level binaries. bit_level_binaries(Config) when is_list(Config) -> - bit_level_binaries(). + bit_level_binaries_do(). otp_7127(suite) -> []; @@ -537,7 +537,7 @@ hash_int(Start, End, F) -> md5(T) -> erlang:md5(term_to_binary(T)). -bit_level_binaries() -> +bit_level_binaries_do() -> [3511317,7022633,14044578,28087749,56173436,112344123,90467083|_] = bit_level_all_different(fun erlang:hash/2), [3511317,7022633,14044578,28087749,56173436,112344123,90467083|_] = diff --git a/erts/emulator/test/statistics_SUITE.erl b/erts/emulator/test/statistics_SUITE.erl index a93dd309c1..c428be6c5a 100644 --- a/erts/emulator/test/statistics_SUITE.erl +++ b/erts/emulator/test/statistics_SUITE.erl @@ -75,7 +75,7 @@ end_per_group(_GroupName, Config) -> Config. - + %%% Testing statistics(wall_clock). @@ -121,7 +121,7 @@ wall_clock_update1(N) when N > 0 -> wall_clock_update1(0) -> ok. - + %%% Test statistics(runtime). @@ -199,7 +199,7 @@ do_much(N) -> _ = 4784728478274827 * 72874284728472, do_much(N-1). - + reductions(doc) -> "Test that statistics(reductions) is callable, and that " "Total_Reductions and Reductions_Since_Last_Call make sense. " @@ -246,7 +246,7 @@ reductions_big_loop() -> reductions_big_loop() end. - + %%% Tests of statistics(run_queue). @@ -295,7 +295,7 @@ hog_iter(N, Mon) when N > 0 -> end; hog_iter(0, Mon) -> ?line hog_iter(10000, Mon). - + %%% Tests of statistics(scheduler_wall_time). scheduler_wall_time(doc) -> @@ -363,7 +363,7 @@ load_percentage([{Id, WN, TN}|Ss], [{Id, WP, TP}|Ps]) -> [100*(WN-WP) div (TN-TP)|load_percentage(Ss, Ps)]; load_percentage([], []) -> []. - + garbage_collection(doc) -> "Tests that statistics(garbage_collection) is callable. " "It is not clear how to test anything more."; diff --git a/erts/emulator/test/system_info_SUITE.erl b/erts/emulator/test/system_info_SUITE.erl index 0350eb671d..ceb4afb5cf 100644 --- a/erts/emulator/test/system_info_SUITE.erl +++ b/erts/emulator/test/system_info_SUITE.erl @@ -37,7 +37,8 @@ init_per_group/2,end_per_group/2, init_per_testcase/2, end_per_testcase/2]). --export([process_count/1, system_version/1, misc_smoke_tests/1, heap_size/1, wordsize/1, memory/1]). +-export([process_count/1, system_version/1, misc_smoke_tests/1, heap_size/1, wordsize/1, memory/1, + ets_limit/1]). -define(DEFAULT_TIMEOUT, ?t:minutes(2)). @@ -45,7 +46,7 @@ suite() -> [{ct_hooks,[ts_install_cth]}]. all() -> [process_count, system_version, misc_smoke_tests, - heap_size, wordsize, memory]. + heap_size, wordsize, memory, ets_limit]. groups() -> []. @@ -496,3 +497,52 @@ mapn(_Fun, 0) -> []; mapn(Fun, N) -> [Fun(N) | mapn(Fun, N-1)]. + +ets_limit(doc) -> + "Verify system_info(ets_limit) reflects max ETS table settings."; +ets_limit(suite) -> []; +ets_limit(Config0) when is_list(Config0) -> + Config = [{testcase,ets_limit}|Config0], + true = is_integer(get_ets_limit(Config)), + 12345 = get_ets_limit(Config, 12345), + ok. + +get_ets_limit(Config) -> + get_ets_limit(Config, 0). +get_ets_limit(Config, EtsMax) -> + Envs = case EtsMax of + 0 -> []; + _ -> [{"ERL_MAX_ETS_TABLES", integer_to_list(EtsMax)}] + end, + {ok, Node} = start_node(Config, Envs), + Me = self(), + Ref = make_ref(), + spawn_link(Node, + fun() -> + Res = erlang:system_info(ets_limit), + unlink(Me), + Me ! {Ref, Res} + end), + receive + {Ref, Res} -> + Res + end, + stop_node(Node), + Res. + +start_node(Config, Envs) when is_list(Config) -> + Pa = filename:dirname(code:which(?MODULE)), + {A, B, C} = now(), + Name = list_to_atom(atom_to_list(?MODULE) + ++ "-" + ++ atom_to_list(?config(testcase, Config)) + ++ "-" + ++ integer_to_list(A) + ++ "-" + ++ integer_to_list(B) + ++ "-" + ++ integer_to_list(C)), + ?t:start_node(Name, peer, [{args, "-pa "++Pa}, {env, Envs}]). + +stop_node(Node) -> + ?t:stop_node(Node). diff --git a/erts/emulator/test/time_SUITE.erl b/erts/emulator/test/time_SUITE.erl index 4d12e3449c..a0a8a9c42c 100644 --- a/erts/emulator/test/time_SUITE.erl +++ b/erts/emulator/test/time_SUITE.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1997-2011. All Rights Reserved. +%% Copyright Ericsson AB 1997-2013. All Rights Reserved. %% %% The contents of this file are subject to the Erlang Public License, %% Version 1.1, (the "License"); you may not use this file except in @@ -241,14 +241,26 @@ compare(Utc0, Local) -> %% Two linear times can be subtracted to give their difference %% in seconds. %% -%% XXX Limitations: The length of months and leap years are not -%% taken into account; thus a comparision of dates is only -%% valid if they are in the SAME month. +%% XXX Limitations: Simplified leap year calc will fail for 2100 :-) linear_time({{Year, Mon, Day}, {Hour, Min, Sec}}) -> - 86400*(366*Year + 31*(Mon-1) + (Day-1)) + + 86400*(year_to_days(Year) + month_to_days(Year,Mon) + (Day-1)) + 3600*Hour + 60*Min + Sec. +year_to_days(Year) -> + Year * 365 + (Year-1) div 4. + +month_to_days(Year, Mon) -> + DoM = [31,days_in_february(Year),31,30,31,30,31,31,30,31,30,31], + {PastMonths,_} = lists:split(Mon-1, DoM), + lists:sum(PastMonths). + +days_in_february(Year) -> + case (Year rem 4) of + 0 -> 29; + _ -> 28 + end. + %% This functions returns either the normal timezone or the %% the DST timezone, depending on the given UTC time. %% diff --git a/erts/emulator/test/trace_SUITE.erl b/erts/emulator/test/trace_SUITE.erl index 0f513f0dcb..2251575e5a 100644 --- a/erts/emulator/test/trace_SUITE.erl +++ b/erts/emulator/test/trace_SUITE.erl @@ -1427,7 +1427,7 @@ receive_nothing() -> ok end. - + %%% Models for various kinds of processes. process(Dest) -> diff --git a/erts/emulator/test/trace_port_SUITE.erl b/erts/emulator/test/trace_port_SUITE.erl index cc2eadafbc..99df8da107 100644 --- a/erts/emulator/test/trace_port_SUITE.erl +++ b/erts/emulator/test/trace_port_SUITE.erl @@ -648,7 +648,7 @@ fun_spawn(Fun, Opts) -> % [] % end. - + %%% Models for various kinds of processes. %% Sends messages when ordered to. diff --git a/erts/epmd/src/epmd.c b/erts/epmd/src/epmd.c index 94bb74c876..2d55b37ff3 100644 --- a/erts/epmd/src/epmd.c +++ b/erts/epmd/src/epmd.c @@ -286,7 +286,7 @@ static void run_daemon(EpmdVars *g) /* fork to make sure first child is not a process group leader */ if (( child_pid = fork()) < 0) { -#ifndef NO_SYSLOG +#ifdef HAVE_SYSLOG_H syslog(LOG_ERR,"erlang mapper daemon cant fork %m"); #endif epmd_cleanup_exit(g,1); @@ -312,7 +312,7 @@ static void run_daemon(EpmdVars *g) if ((child_pid = fork()) < 0) { -#ifndef NO_SYSLOG +#ifdef HAVE_SYSLOG_H syslog(LOG_ERR,"erlang mapper daemon cant fork 2'nd time %m"); #endif epmd_cleanup_exit(g,1); @@ -483,7 +483,7 @@ static void dbg_gen_printf(int onsyslog,int perr,int from_level, if (g->is_daemon) { -#ifndef NO_SYSLOG +#ifdef HAVE_SYSLOG_H if (onsyslog) { erts_vsnprintf(buf, DEBUG_BUFFER_SIZE, format, args); diff --git a/erts/epmd/src/epmd_int.h b/erts/epmd/src/epmd_int.h index ac354dcc78..656dbd1f45 100644 --- a/erts/epmd/src/epmd_int.h +++ b/erts/epmd/src/epmd_int.h @@ -25,13 +25,11 @@ definitions ourselves */ #ifdef __WIN32__ -#define NO_SYSLOG #define NO_SYSCONF #define NO_DAEMON #endif #ifdef VXWORKS -#define NO_SYSLOG #define NO_SYSCONF #define NO_DAEMON #define NO_FCNTL @@ -98,7 +96,7 @@ #include <errno.h> -#ifndef NO_SYSLOG +#ifdef HAVE_SYSLOG_H # include <syslog.h> #endif diff --git a/erts/etc/common/erlexec.c b/erts/etc/common/erlexec.c index 30560f5a2f..f098e56a2e 100644 --- a/erts/etc/common/erlexec.c +++ b/erts/etc/common/erlexec.c @@ -103,12 +103,18 @@ static char *plusM_other_switches[] = { "ea", "ummc", "uycs", + "usac", "im", "is", "it", + "lpm", "Mamcbf", "Mrmcbf", "Mmcs", + "Mscs", + "Mscrfsd", + "Msco", + "Mscrpm", "Ye", "Ym", "Ytp", diff --git a/erts/etc/unix/Makefile b/erts/etc/unix/Makefile index e85d2fab0c..c137a31ec2 100644 --- a/erts/etc/unix/Makefile +++ b/erts/etc/unix/Makefile @@ -29,7 +29,7 @@ opt debug: etc etc: etp-commands etp-commands: etp-commands.in - sed 's:@ERL_TOP@:${ERL_TOP}:g' etp-commands.in > etp-commands + $(gen_verbose)sed 's:@ERL_TOP@:${ERL_TOP}:g' etp-commands.in > etp-commands .PHONY: docs docs: diff --git a/erts/etc/unix/cerl.src b/erts/etc/unix/cerl.src index 41baa323ed..be8343e87e 100644 --- a/erts/etc/unix/cerl.src +++ b/erts/etc/unix/cerl.src @@ -33,6 +33,7 @@ # You have to start beam in gdb using "run". # -rgdb Run the debug compiled emulator in gdb. # You have to start beam in gdb using "run". +# -dump Dump the bt of all threads in a core. # -break F Run the debug compiled emulator in emacs and gdb and set break. # The session is started, i.e. "run" is already don for you. # -xxgdb FIXME currently disabled @@ -178,6 +179,12 @@ while [ $# -gt 0 ]; do cargs="$cargs -frmptr" TYPE=.frmptr ;; + "-dump") + shift + GDB=dump + core="$1" + shift + ;; "-gdb") shift GDB=egdb @@ -331,7 +338,7 @@ elif [ "x$GDB" = "xgdb" ]; then echo "source $ROOTDIR/erts/etc/unix/etp-commands" > $cmdfile # Fire up gdb in emacs... exec gdb $GDBBP -x $cmdfile $gdbcmd -else +elif [ "x$GDB" = "xegdb" ]; then if [ "x$EMACS" = "x" ]; then EMACS=emacs fi @@ -339,7 +346,7 @@ else case "x$core" in x) # Get emu args to use from erlexec... - beam_args=`$EXEC -emu_args_exit ${1+"$@"}` + beam_args=`$EXEC -emu_args_exit ${1+"$@"} | tr '\n' ' '` gdbcmd="(insert-string \"set args $beam_args\") \ (comint-send-input)" ;; @@ -372,4 +379,23 @@ else (comint-send-input)" # Fire up gdb in emacs... exec $EMACS --eval "(progn (gdb \"gdb $GDBARGS$EMU_NAME\") $gdbcmd)" +elif [ "x$GDB" = "xdump" ]; then + cmdfile="/tmp/.cerlgdb.$$" + case "x$core" in + x/*) + gdbcmd="$EMU_NAME ${core}" + ;; + *) + dir=`pwd` + gdbcmd="$EMU_NAME ${dir}/${core}" + ;; + esac + echo "set width 0 +set height 0 +set verbose off + +source $ROOTDIR/erts/etc/unix/etp-commands +thread apply all bt +" > $cmdfile + exec gdb --batch --command=$cmdfile $gdbcmd fi diff --git a/erts/etc/unix/run_erl.c b/erts/etc/unix/run_erl.c index b69e31f784..2018bc007c 100644 --- a/erts/etc/unix/run_erl.c +++ b/erts/etc/unix/run_erl.c @@ -60,7 +60,7 @@ #include <dirent.h> #include <termios.h> #include <time.h> -#ifndef NO_SYSLOG +#ifdef HAVE_SYSLOG_H # include <syslog.h> #endif #ifdef HAVE_PTY_H @@ -197,8 +197,9 @@ static char* outbuf_in; #endif -#ifdef NO_SYSLOG +#ifndef HAVE_SYSLOG_H # define OPEN_SYSLOG() ((void) 0) +# define LOG_ERR NULL #else # define OPEN_SYSLOG() openlog(simple_basename(program_name), \ LOG_PID|LOG_CONS|LOG_NOWAIT,LOG_USER) @@ -415,7 +416,7 @@ int main(int argc, char **argv) } #endif -#ifndef NO_SYSLOG +#ifdef HAVE_SYSLOG_H /* Before fiddling with file descriptors we make sure syslog is turned off or "closed". In the single case where we might want it again, we will open it again instead. Would not want syslog to @@ -1163,7 +1164,7 @@ static void error_logf(int priority, int line, const char *format, ...) va_list args; va_start(args, format); -#ifndef NO_SYSLOG +#ifdef HAVE_SYSLOG_H if (run_daemon) { vsyslog(priority,format,args); } diff --git a/erts/preloaded/ebin/erl_prim_loader.beam b/erts/preloaded/ebin/erl_prim_loader.beam Binary files differindex f51ccfe8ce..ece0e6d5e8 100644 --- a/erts/preloaded/ebin/erl_prim_loader.beam +++ b/erts/preloaded/ebin/erl_prim_loader.beam diff --git a/erts/preloaded/ebin/erlang.beam b/erts/preloaded/ebin/erlang.beam Binary files differindex 9da4f3cd00..5a9ffa89d1 100644 --- a/erts/preloaded/ebin/erlang.beam +++ b/erts/preloaded/ebin/erlang.beam diff --git a/erts/preloaded/ebin/prim_inet.beam b/erts/preloaded/ebin/prim_inet.beam Binary files differindex 71d2cbd009..3fd0b9e106 100644 --- a/erts/preloaded/ebin/prim_inet.beam +++ b/erts/preloaded/ebin/prim_inet.beam diff --git a/erts/preloaded/src/Makefile b/erts/preloaded/src/Makefile index c1580b1495..4ea2d41075 100644 --- a/erts/preloaded/src/Makefile +++ b/erts/preloaded/src/Makefile @@ -68,7 +68,7 @@ KERNEL_SRC=$(ERL_TOP)/lib/kernel/src KERNEL_INCLUDE=$(ERL_TOP)/lib/kernel/include STDLIB_INCLUDE=$(ERL_TOP)/lib/stdlib/include -ERL_COMPILE_FLAGS += +warn_obsolete_guard -I$(KERNEL_SRC) -I$(KERNEL_INCLUDE) +ERL_COMPILE_FLAGS += +warn_obsolete_guard +debug_info -I$(KERNEL_SRC) -I$(KERNEL_INCLUDE) debug opt: $(TARGET_FILES) diff --git a/erts/preloaded/src/erl_prim_loader.erl b/erts/preloaded/src/erl_prim_loader.erl index e8ddfc4a57..fc43d1d4fa 100644 --- a/erts/preloaded/src/erl_prim_loader.erl +++ b/erts/preloaded/src/erl_prim_loader.erl @@ -1439,7 +1439,12 @@ normalize(Name, Acc) -> [Atom | Rest] when is_atom(Atom) -> normalize(atom_to_list(Atom) ++ Rest, Acc); [$\\ | Chars] -> - normalize(Chars, [$/ | Acc]); + case erlang:system_info(os_type) of + {win32, _} -> + normalize(Chars, [$/ | Acc]); + _ -> + normalize(Chars, [$\\ | Acc]) + end; [Char | Chars] -> normalize(Chars, [Char | Acc]); [] -> diff --git a/erts/preloaded/src/erlang.erl b/erts/preloaded/src/erlang.erl index a969ef91dc..2b6760c675 100644 --- a/erts/preloaded/src/erlang.erl +++ b/erts/preloaded/src/erlang.erl @@ -2099,13 +2099,14 @@ tuple_to_list(_Tuple) -> (creation) -> integer(); (debug_compiled) -> boolean(); (dist) -> binary(); + (dist_buf_busy_limit) -> non_neg_integer(); (dist_ctrl) -> {Node :: node(), ControllingEntity :: port() | pid()}; (driver_version) -> string(); (dynamic_trace) -> none | dtrace | systemtap; (dynamic_trace_probes) -> boolean(); (elib_malloc) -> false; - (dist_buf_busy_limit) -> non_neg_integer(); + (ets_limit) -> pos_integer(); (fullsweep_after) -> {fullsweep_after, non_neg_integer()}; (garbage_collection) -> [{atom(), integer()}]; (heap_sizes) -> [non_neg_integer()]; @@ -3498,6 +3499,8 @@ mk_res_list([]) -> mk_res_list([Alloc | Rest]) -> [{Alloc, []} | mk_res_list(Rest)]. +insert_instance(I, N, Rest) when erlang:is_atom(N) -> + [{N, I} | Rest]; insert_instance(I, N, []) -> [{instance, N, I}]; insert_instance(I, N, [{instance, M, _}|_] = Rest) when N < M -> diff --git a/erts/test/z_SUITE.erl b/erts/test/z_SUITE.erl index ccf22a9b6b..da72b18f05 100644 --- a/erts/test/z_SUITE.erl +++ b/erts/test/z_SUITE.erl @@ -231,6 +231,20 @@ mod_time_list(F) -> str_strip(S) -> string:strip(string:strip(string:strip(S), both, $\n), both, $\r). +dump_core(#core_search_conf{ cerl = false }, _) -> + ok; +dump_core(_, {ignore, _Core}) -> + ok; +dump_core(#core_search_conf{ cerl = Cerl }, Core) -> + Dump = case test_server:is_debug() of + true -> + os:cmd(Cerl ++ " -debug -dump " ++ Core); + _ -> + os:cmd(Cerl ++ " -dump " ++ Core) + end, + ct:log("~s~n~n~s",[Core,Dump]). + + format_core(Conf, {ignore, Core}) -> format_core(Conf, Core, "[ignored] "); format_core(Conf, Core) -> @@ -254,11 +268,16 @@ core_file_search(#core_search_conf{search_dir = Base, extra_search_dir = XBase, cerl = Cerl, run_by_ts = RunByTS} = Conf) -> - case Cerl of - false -> ok; - _ -> catch io:format("A cerl script that probably can be used for " - "inspection of emulator cores:~n ~s~n", - [Cerl]) + case {Cerl,test_server:is_debug()} of + {false,_} -> ok; + {_,true} -> + catch io:format("A cerl script that probably can be used for " + "inspection of emulator cores:~n ~s -debug~n", + [Cerl]); + _ -> + catch io:format("A cerl script that probably can be used for " + "inspection of emulator cores:~n ~s~n", + [Cerl]) end, io:format("Searching for core-files in: ~s~s~n", [case XBase of @@ -329,6 +348,8 @@ core_file_search(#core_search_conf{search_dir = Base, ["Ignored core-files found:", lists:reverse(ICores)] end]), + + lists:foreach(fun(C) -> dump_core(Conf,C) end, Cores), case {RunByTS, ICores, FCores} of {true, [], []} -> ok; {true, _, []} -> {comment, Res}; diff --git a/erts/vsn.mk b/erts/vsn.mk index 6ebdcdbc85..9afd46b961 100644 --- a/erts/vsn.mk +++ b/erts/vsn.mk @@ -17,8 +17,8 @@ # %CopyrightEnd% # -VSN = 5.10.3.1 -SYSTEM_VSN = R16B02 +VSN = 5.10.4 +SYSTEM_VSN = R16B03 # Port number 4365 in 4.2 # Port number 4366 in 4.3 |