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2015-02-26hipe: change mfa_info_table lock to rwmutexMikael Pettersson
The hipe_mfa_info_table lock is currently a mutex, causing unnecessary contention and serialization of lookups for apply-like constructs. - change the lock from a mutex to an rwmutex - split hipe_get_na_nofail_locked into a "try" path which only needs a read lock, and a "slow" path which requires a write lock - reimplement hipe_get_na_nofail (used by apply ops etc) to first call the "try" path with a read lock, and if that fails the "slow" path with a write lock - reimplement hipe_get_na_nofail_locked (used by maintenance code) to call the "try" path and then optionally the "slow" path, but without taking locks since its caller already has the write lock - adjust remaining lock ops to take/release full write lock - use _rwlocked as suffix on functions requiring a write lock - change hipe_mfa_get_trampoline to call get_locked not put_locked, allowing it to take a read lock instead of a write lock - change hipe_find_mfa_from_ra() to only take a read lock
2015-02-03Merge branch 'maint-17' into maintZandra Hird
2015-01-30Merge branch 'egil/fix-getifaddrs-realloc/OTP-12445' into maint-17Erlang/OTP
* egil/fix-getifaddrs-realloc/OTP-12445: erts: Fix getifaddrs realloc ptr mismatch
2015-01-30Merge branch 'egil/fix-child_setup-close/OTP-12446' into maint-17Erlang/OTP
* egil/fix-child_setup-close/OTP-12446: erts: Use closefrom() if available when closing fds erts: Don't close all fds twice in child_setup
2015-01-29erts: Fix getifaddrs realloc ptr mismatchBjörn-Egil Dahlberg
When a buffer was exhausted and subsequently a realloc, we could get an invalid pointer. For this to occur we would need to have a realloc to lower adresses. The symptom would be garbage returned from erlang:port_control(Port, 25, []) (prim_inet:getifaddrs(Port) resulting in a badarg) or a segmentation fault.
2015-01-27erts: Use closefrom() if available when closing fdsBjörn-Egil Dahlberg
closefrom() was only used in the vfork() case before, now also used in the fork() case.
2015-01-27erts: Don't close all fds twice in child_setupBjörn-Egil Dahlberg
The commit c2b4eab25c907f453a394d382c04cd04e6c06b49 introduced an error in which child_setup erroneously tried to close all file descriptors twice.
2015-01-23erts: Check driver version before assigning callbackBjörn-Egil Dahlberg
2015-01-23erts: Don't lookup invalid port for crashdump handlingBjörn-Egil Dahlberg
2015-01-23erts: Reserve a file descriptor for the crashdump fileBjörn-Egil Dahlberg
2015-01-23erts: Use emergency close to close epmdBjörn-Egil Dahlberg
Closes all open socket before writing crashdump to file.
2015-01-15Merge branch 'mikpe/hipe-arm-interworking' into maintBruce Yinhe
OTP-12405 * mikpe/hipe-arm-interworking: hipe: fix ARM/Thumb interworking
2015-01-14Merge branch 'dotsimon/sctp_paddrinfo_state' into maintMarcus Arendt
* dotsimon/sctp_paddrinfo_state: Fix inet:getopts involving #sctp_paddrinfo{}
2015-01-13erts: Extend driver interface with emergency_closeBjörn-Egil Dahlberg
The intention of this callback is to close all sockets associated to a port. It is closed only on crashdumps. This will currently only be used for the epmd port.
2015-01-11hipe: fix ARM/Thumb interworkingMikael Pettersson
HiPE on ARM is currently severely broken if the rest of the VM is compiled to run in Thumb mode -- calling native code quickly ends up executing code in the wrong mode and crashing the VM. This is a problem on e.g. Ubuntu which configures its system GCC to generate Thumb by default. It can also be triggered by overriding CC or CFLAGS when compiling the VM. There were three issues that caused the breakage: 1. Assembly-coded functions in hipe_arm_glue.S weren't explicitly tagged as functions, preventing the linker from generating the correct mode-switching call instructions for calls from C to these functions. Fixed by tagging those symbols as functions. 2. A few BIF wrappers were so simple that they performed tailcalls to the C BIFs. This fails to switch mode when C is in Thumb. Fixed by performing ordinary recursive calls when C is in Thumb. 3. The assembly-coded source files weren't explicitly tagged as ARM. Tested with the HiPE testsuite on ARMv7, with the VM built as ARM and as Thumb. Also manually inspected the object code for the beam executable and checked that call sites from C to HiPE's ARM runtime code and vice versa used the correct mode-switching instructions.
2014-12-10Use the new 64-bit atomic ops APIRickard Green
2014-12-10Introduce a 64-bit atomic ops APIRickard Green
The 64-bit atomic ops API is implemented by * native word size atomic ops on 64-bit architectures, and * native double word size atomic ops on 32-bit architectures when available. When native double word size atomic is not available, the fallback using modification counters is used.
2014-12-08Fix inet:getopts involving #sctp_paddrinfo{}Simon Cornish
Handle peer addresses that are unconfirmed (i.e. in state SCTP_UNCONFIRMED). Handle unknown states instead of using ASSERT
2014-12-03Fix function "defined but not used" warningRickard Green
2014-12-03erts: Fix some spelling in internal docsSverker Eriksson
2014-12-02Merge branch 'lukas/erts/isfinite-fix/OTP-12268' into maintLukas Larsson
* lukas/erts/isfinite-fix/OTP-12268: erts: Fix finite warning for clang
2014-12-02erts: Fix finite warning for clangLukas Larsson
clang aka llvm claims to be __GNUC__ and thus we have to explicitly check that it is not used.
2014-12-02Merge branch 'lukas/erts/bif_info_rebuild/OTP-12344' into maintLukas Larsson
* lukas/erts/bif_info_rebuild/OTP-12344: Sort keys before generating
2014-11-26Merge branch 'sverk/port_get_data-race/OTP-12208' into maintSverker Eriksson
* sverk/port_get_data-race/OTP-12208: erts: Fix port data memory allocation bug
2014-11-26Sort keys before generatingLukas Larsson
This has to be done in order to consistently generate the same file so that we do not get rebuilds all the time.
2014-11-25Merge branch 'rickard/maint-17/activate-runq/OTP-12287' into maintRickard Green
* rickard/maint-17/activate-runq/OTP-12287: Do not let non-empty run-queue prevent activation of scheduler
2014-11-25Merge branch 'sverk/cpool-search-improvement' into maintSverker Eriksson
OTP-12323 * sverk/cpool-search-improvement: erts: Add internal docs for super carrier and new cpool search. erts: Fix bug causing mbc to be deleted from cpool before it was inserted erts: Fix bug causing mbc removed from cpool to be used at pool entrance erts: Add pooled_list and traitor_list
2014-11-25erts: Fix port data memory allocation bugSverker Eriksson
for non-immediate port data >= sizeof(Eterm)*2 words.
2014-11-24Merge branch 'lukas/erts/isfinite-fix/OTP-12268' into maintLukas Larsson
* lukas/erts/isfinite-fix/OTP-12268: erts: Use finite instead of isfinite with gcc
2014-11-24erts: Use finite instead of isfinite with gccLukas Larsson
Turns out that isfinite emits a function call and not an instruction in gcc, this makes estone float arith about 50-75% slower. finite emits the instruction so we use that instead.
2014-11-10Merge branch 'vinoski/dirty-nif-return-gc' into maintBruce Yinhe
OTP-12300 * vinoski/dirty-nif-return-gc: Fix gc-related problem with dirty NIFs
2014-11-07Merge branch 'lemenkov/expose_nif_version' into maintBruce Yinhe
OTP-12298 * lemenkov/expose_nif_version: Expose NIF version
2014-11-06erts: Add internal docs for super carrier and new cpool search.Sverker Eriksson
2014-11-06Merge branch 'vinoski/fix-smp-disable-with-ds/OTP-12295' into maintMarcus Arendt
* vinoski/fix-smp-disable-with-ds/OTP-12295: Fix "-smp disable" for emulator with dirty schedulers
2014-11-05Merge branch 'lukas/erts/fix_undefined_behaviour/OTP-12290' into maintLukas Larsson
* lukas/erts/fix_undefined_behaviour/OTP-12290: erts: Fix ub in list_to_integer and bignum div
2014-11-05Merge branch 'lukas/erts/fdopen_non_bound_win32_fix/OTP-12289' into maintLukas Larsson
* lukas/erts/fdopen_non_bound_win32_fix/OTP-12289: erts: getsockname is not allowed on non-bound sockets
2014-11-04Merge branch 'rickard/activate-runq/OTP-12287' into ↵Rickard Green
rickard/maint-17/activate-runq/OTP-12287 * rickard/activate-runq/OTP-12287: Do not let non-empty run-queue prevent activation of scheduler Conflicts: erts/emulator/beam/erl_process.c
2014-11-04Do not let non-empty run-queue prevent activation of schedulerRickard Green
Conflicts: erts/emulator/beam/erl_process.c
2014-11-04Fix gc-related problem with dirty NIFsSteve Vinoski
Ensure that the return value from a dirty NIF call is made part of the GC rootset. Add a new regression test to nif_SUITE. Thanks to Daniel Goertzen for reporting the error and providing a test case, and to Sverker Eriksson for making test case reproducible and finding the fix.
2014-11-03Merge branch 'sverk/beam-ranges-bug/OTP-12273' into maintSverker Eriksson
* sverk/beam-ranges-bug/OTP-12273: erts: Fix bug in beam_ranges
2014-11-02Expose NIF versionPeter Lemenkov
This patch allows checking for NIF API version in a way similar to driver version. E.g. by calling erlang:system_info(nif_version). Signed-off-by: Peter Lemenkov <[email protected]>
2014-10-29erts: Fix bug in beam_rangesSverker Eriksson
Symptom: VM on OSX (darwin11.4.2) with +Meamin running sasl tests, crashing when init:reboot() does erlang:purge_module(installer). Problem: Off-by-one bug in beam_ranges:find_range, returning the wrong range if the 'end' of one module is the 'start' of the next. This is only possible if using sys_alloc (+Meamin) as our own allocators always put block headers between allocated payload data.
2014-10-28Merge branch 'sverk/cpool_fetch-dc_list-bug/OTP-12249' into maintSverker Eriksson
* sverk/cpool_fetch-dc_list-bug/OTP-12249: erts: Fix bug when delayed deallocated carrier is reused by cpool_fetch
2014-10-28Merge branch 'lukas/erts/win32-read_file_info-links/OTP-12269' into maintLukas Larsson
* lukas/erts/win32-read_file_info-links/OTP-12269: erts: Initialize links when reading file info
2014-10-28Merge branch 'sv/isfinite/OTP-12268' into maintLukas Larsson
* sv/isfinite/OTP-12268: Use isfinite() instead of finite() when available
2014-10-28Use isfinite() instead of finite() when availableAnthony Ramine
OS X Mavericks builds result in a number of warnings about finite() being deprecated, like these: beam/erl_arith.c:451:7: warning: 'finite' is deprecated: first deprecated in OS X 10.9 [-Wdeprecated-declarations] ERTS_FP_ERROR(p, f1.fd, goto badarith); ^ sys/unix/erl_unix_sys.h:319:33: note: expanded from macro 'ERTS_FP_ERROR' ^ sys/unix/erl_unix_sys.h:244:51: note: expanded from macro '__ERTS_FP_ERROR' ^ /usr/include/math.h:718:12: note: 'finite' has been explicitly marked deprecated here extern int finite(double) __OSX_AVAILABLE_BUT_DEPRECATED(__MAC_10_0, __MAC_10_9, __IPHONE_NA, __IPHONE_NA); Add checks to use isfinite() instead of finite() where available. Verified on OS X Mavericks 10.9.5 and Ubuntu 12.04.
2014-10-28Merge branch 'vinoski/erl-nif-init' into maintBruce Yinhe
OTP-12266 * vinoski/erl-nif-init: Fix missing field initializer in ERL_NIF_INIT macro
2014-10-26Fix "-smp disable" for emulator with dirty schedulersSteve Vinoski
Running "erl -smp disable" on an emulator built with dirty scheduler support caused problems such as segmentation violations and emulator status line outputs containing garbage. For example: $ erl -smp disable Segmentation fault (core dumped) and: $ erl -smp disable Erlang/OTP 17 [DEVELOPMENT] [erts-6.2] [source] [64-bit] [ds:10:4297895689:4299948152] [async-threads:280] This problem also caused the emulator smoke_test_SUITE to hit these same problems if run in an emulator started with the "-smp disable" option. Fix this segmentation violation by ensuring that dirty scheduler information is printed in the status line only when the emulator is compiled with ERTS_SMP enabled. With this fix in place, the smoke_test_SUITE now passes when the "-smp disable" option is used, and the emulator status line prints correctly for both "-smp enable" and "-smp disable": $ erl -smp enable Erlang/OTP 17 [DEVELOPMENT] [erts-6.2] [source] [64-bit] [smp:8:8] [ds:8:8:10] [async-threads:10] [kernel-poll:false] and: $ erl -smp disable Erlang/OTP 17 [DEVELOPMENT] [erts-6.2] [source] [64-bit] [async-threads:10] [kernel-poll:false]
2014-10-24Merge branch 'sverk/hipe-wrap-bif-disable-gc-fixes/OTP-12231' into maintSverker Eriksson
* sverk/hipe-wrap-bif-disable-gc-fixes/OTP-12231: erts: Fix bug when hipe tailcalls trapping BIF that disables GC erts: Fix hipe bug when gc-disabling bif traps with gc enabled
2014-10-23Merge branch 'rickard/maint-17/eager-check-io/OTP-12117' into maintRickard Green
* rickard/maint-17/eager-check-io/OTP-12117: No eager check I/O on OSE Introduce support for eager check I/O scheduling
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