diff options
Diffstat (limited to 'erts/emulator/beam')
| -rw-r--r-- | erts/emulator/beam/beam_emu.c | 14 | ||||
| -rwxr-xr-x | erts/emulator/beam/erl_bif_info.c | 25 | ||||
| -rw-r--r-- | erts/emulator/beam/erl_init.c | 4 |
3 files changed, 39 insertions, 4 deletions
diff --git a/erts/emulator/beam/beam_emu.c b/erts/emulator/beam/beam_emu.c index 78ab6fa30f..592cfe273f 100644 --- a/erts/emulator/beam/beam_emu.c +++ b/erts/emulator/beam/beam_emu.c @@ -4326,7 +4326,19 @@ void process_main(void) flags = Arg(2); BsGetFieldSize(tmp_arg2, (flags >> 3), ClauseFail(), size); if (size >= SMALL_BITS) { - Uint wordsneeded = 1+WSIZE(NBYTES((Uint) size)); + Uint wordsneeded; + /* check bits size before potential gc. + * We do not want a gc and then realize we don't need + * the allocated space (i.e. if the op fails) + * + * remember to reacquire the matchbuffer after gc. + */ + + mb = ms_matchbuffer(tmp_arg1); + if (mb->size - mb->offset < size) { + ClauseFail(); + } + wordsneeded = 1+WSIZE(NBYTES((Uint) size)); TestHeapPreserve(wordsneeded, Arg(1), tmp_arg1); } mb = ms_matchbuffer(tmp_arg1); diff --git a/erts/emulator/beam/erl_bif_info.c b/erts/emulator/beam/erl_bif_info.c index 414ae2f046..e0b654cb22 100755 --- a/erts/emulator/beam/erl_bif_info.c +++ b/erts/emulator/beam/erl_bif_info.c @@ -64,8 +64,10 @@ static Export *gather_gc_info_res_trap; #define DECL_AM(S) Eterm AM_ ## S = am_atom_put(#S, sizeof(#S) - 1) +static char otp_correction_package[] = ERLANG_OTP_CORRECTION_PACKAGE; /* Keep erts_system_version as a global variable for easy access from a core */ static char erts_system_version[] = ("Erlang/OTP " ERLANG_OTP_RELEASE + "%s" " [erts-" ERLANG_VERSION "]" #if !HEAP_ON_C_STACK && !HALFWORD_HEAP " [no-c-stack-objects]" @@ -304,11 +306,28 @@ make_link_list(Process *p, ErtsLink *root, Eterm tail) int erts_print_system_version(int to, void *arg, Process *c_p) { + int i, rc = -1; + char *rc_str = ""; + char rc_buf[100]; + char *ocp = otp_correction_package; #ifdef ERTS_SMP Uint total, online, active; (void) erts_schedulers_state(&total, &online, &active, 0); #endif - return erts_print(to, arg, erts_system_version + for (i = 0; i < sizeof(otp_correction_package)-4; i++) { + if (ocp[i] == '-' && ocp[i+1] == 'r' && ocp[i+2] == 'c') + rc = atoi(&ocp[i+3]); + } + if (rc >= 0) { + if (rc == 0) + rc_str = " [DEVELOPMENT]"; + else { + erts_snprintf(rc_buf, sizeof(rc_buf), " [RELEASE CANDIDATE %d]", rc); + rc_str = rc_buf; + } + } + return erts_print(to, arg, erts_system_version, + rc_str #ifdef ERTS_SMP , total, online #endif @@ -2417,6 +2436,10 @@ BIF_RETTYPE system_info_1(BIF_ALIST_1) DECL_AM(unknown); BIF_RET(AM_unknown); } + } else if (ERTS_IS_ATOM_STR("otp_correction_package", BIF_ARG_1)) { + int n = sizeof(ERLANG_OTP_CORRECTION_PACKAGE)-1; + hp = HAlloc(BIF_P, 2*n); + BIF_RET(buf_to_intlist(&hp, ERLANG_OTP_CORRECTION_PACKAGE, n, NIL)); } else if (ERTS_IS_ATOM_STR("otp_release", BIF_ARG_1)) { int n = sizeof(ERLANG_OTP_RELEASE)-1; hp = HAlloc(BIF_P, 2*n); diff --git a/erts/emulator/beam/erl_init.c b/erts/emulator/beam/erl_init.c index 8c4fffa75b..1af80dd04b 100644 --- a/erts/emulator/beam/erl_init.c +++ b/erts/emulator/beam/erl_init.c @@ -553,8 +553,8 @@ void erts_usage(void) erts_fprintf(stderr, " numbers is %d\n", ERTS_MAX_NO_OF_SCHEDULERS); erts_fprintf(stderr, "-SP p1:p2 specify schedulers (p1) and schedulers online (p2)\n"); - erts_fprintf(stderr, " as percentages of logical processors configured and logical\n"); - erts_fprintf(stderr, " processors available, respectively\n"); + erts_fprintf(stderr, " as percentages of logical processors configured and logical\n"); + erts_fprintf(stderr, " processors available, respectively\n"); erts_fprintf(stderr, "-t size set the maximum number of atoms the " "emulator can handle\n"); erts_fprintf(stderr, " valid range is [%d-%d]\n", |