/erts/emulator/beam/erl_init.c
C | 1614 lines | 1288 code | 199 blank | 127 comment | 239 complexity | 285460c15e857bfcc20e4f8e146e18e0 MD5 | raw file
Possible License(s): LGPL-2.1, MPL-2.0-no-copyleft-exception, BSD-2-Clause
- /*
- * %CopyrightBegin%
- *
- * Copyright Ericsson AB 1997-2010. 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 <ctype.h>
- #include "erl_vm.h"
- #include "global.h"
- #include "erl_process.h"
- #include "error.h"
- #include "erl_version.h"
- #include "erl_db.h"
- #include "beam_bp.h"
- #include "erl_bits.h"
- #include "erl_binary.h"
- #include "dist.h"
- #include "erl_mseg.h"
- #include "erl_nmgc.h"
- #include "erl_threads.h"
- #include "erl_bif_timer.h"
- #include "erl_instrument.h"
- #include "erl_printf_term.h"
- #include "erl_misc_utils.h"
- #include "packet_parser.h"
- #include "erl_cpu_topology.h"
- #ifdef HIPE
- #include "hipe_mode_switch.h" /* for hipe_mode_switch_init() */
- #include "hipe_signal.h" /* for hipe_signal_init() */
- #endif
- #ifdef HAVE_SYS_RESOURCE_H
- # include <sys/resource.h>
- #endif
- /*
- * Note about VxWorks: All variables must be initialized by executable code,
- * not by an initializer. Otherwise a new instance of the emulator will
- * inherit previous values.
- */
- extern void erl_crash_dump_v(char *, int, char *, va_list);
- #ifdef __WIN32__
- extern void ConNormalExit(void);
- extern void ConWaitForExit(void);
- #endif
- static void erl_init(int ncpu);
- #define ERTS_MIN_COMPAT_REL 7
- #ifdef ERTS_SMP
- erts_smp_atomic_t erts_writing_erl_crash_dump;
- #else
- volatile int erts_writing_erl_crash_dump = 0;
- #endif
- int erts_initialized = 0;
- #if defined(USE_THREADS) && !defined(ERTS_SMP)
- static erts_tid_t main_thread;
- #endif
- int erts_use_sender_punish;
- /*
- * Configurable parameters.
- */
- Uint display_items; /* no of items to display in traces etc */
- Uint display_loads; /* print info about loaded modules */
- int H_MIN_SIZE; /* The minimum heap grain */
- int BIN_VH_MIN_SIZE; /* The minimum binary virtual*/
- Uint32 erts_debug_flags; /* Debug flags. */
- #ifdef ERTS_OPCODE_COUNTER_SUPPORT
- int count_instructions;
- #endif
- int erts_backtrace_depth; /* How many functions to show in a backtrace
- * in error codes.
- */
- int erts_async_max_threads; /* number of threads for async support */
- int erts_async_thread_suggested_stack_size;
- erts_smp_atomic32_t erts_max_gen_gcs;
- Eterm erts_error_logger_warnings; /* What to map warning logs to, am_error,
- am_info or am_warning, am_error is
- the default for BC */
- int erts_compat_rel;
- static int use_multi_run_queue;
- static int no_schedulers;
- static int no_schedulers_online;
- #ifdef DEBUG
- Uint32 verbose; /* See erl_debug.h for information about verbose */
- #endif
- int erts_disable_tolerant_timeofday; /* Time correction can be disabled it is
- * not and/or it is too slow.
- */
- int erts_atom_table_size = ATOM_LIMIT; /* Maximum number of atoms */
- int erts_modified_timing_level;
- int erts_no_crash_dump = 0; /* Use -d to suppress crash dump. */
- /*
- * Other global variables.
- */
- ErtsModifiedTimings erts_modified_timings[] = {
- /* 0 */ {make_small(0), CONTEXT_REDS, INPUT_REDUCTIONS},
- /* 1 */ {make_small(0), 2*CONTEXT_REDS, 2*INPUT_REDUCTIONS},
- /* 2 */ {make_small(0), CONTEXT_REDS/2, INPUT_REDUCTIONS/2},
- /* 3 */ {make_small(0), 3*CONTEXT_REDS, 3*INPUT_REDUCTIONS},
- /* 4 */ {make_small(0), CONTEXT_REDS/3, 3*INPUT_REDUCTIONS},
- /* 5 */ {make_small(0), 4*CONTEXT_REDS, INPUT_REDUCTIONS/2},
- /* 6 */ {make_small(1), CONTEXT_REDS/4, 2*INPUT_REDUCTIONS},
- /* 7 */ {make_small(1), 5*CONTEXT_REDS, INPUT_REDUCTIONS/3},
- /* 8 */ {make_small(10), CONTEXT_REDS/5, 3*INPUT_REDUCTIONS},
- /* 9 */ {make_small(10), 6*CONTEXT_REDS, INPUT_REDUCTIONS/4}
- };
- #define ERTS_MODIFIED_TIMING_LEVELS \
- (sizeof(erts_modified_timings)/sizeof(ErtsModifiedTimings))
- Export *erts_delay_trap = NULL;
- int erts_use_r9_pids_ports;
- #ifdef HYBRID
- Eterm *global_heap;
- Eterm *global_hend;
- Eterm *global_htop;
- Eterm *global_saved_htop;
- Eterm *global_old_heap;
- Eterm *global_old_hend;
- ErlOffHeap erts_global_offheap;
- Uint global_heap_sz = SH_DEFAULT_SIZE;
- #ifndef INCREMENTAL
- Eterm *global_high_water;
- Eterm *global_old_htop;
- #endif
- Uint16 global_gen_gcs;
- Uint16 global_max_gen_gcs;
- Uint global_gc_flags;
- Uint global_heap_min_sz = SH_DEFAULT_SIZE;
- #endif
- int ignore_break;
- int replace_intr;
- static ERTS_INLINE int
- has_prefix(const char *prefix, const char *string)
- {
- int i;
- for (i = 0; prefix[i]; i++)
- if (prefix[i] != string[i])
- return 0;
- return 1;
- }
- static char*
- progname(char *fullname)
- {
- int i;
-
- i = strlen(fullname);
- while (i >= 0) {
- if ((fullname[i] != '/') && (fullname[i] != '\\'))
- i--;
- else
- break;
- }
- return fullname+i+1;
- }
- static int
- this_rel_num(void)
- {
- static int this_rel = -1;
- if (this_rel < 1) {
- int i;
- char this_rel_str[] = ERLANG_OTP_RELEASE;
-
- i = 0;
- while (this_rel_str[i] && !isdigit((int) this_rel_str[i]))
- i++;
- this_rel = atoi(&this_rel_str[i]);
- if (this_rel < 1)
- erl_exit(-1, "Unexpected ERLANG_OTP_RELEASE format\n");
- }
- return this_rel;
- }
- /*
- * Common error printout function, all error messages
- * that don't go to the error logger go through here.
- */
- void erl_error(char *fmt, va_list args)
- {
- erts_vfprintf(stderr, fmt, args);
- }
- static int early_init(int *argc, char **argv);
- void
- erts_short_init(void)
- {
- int ncpu = early_init(NULL, NULL);
- erl_init(ncpu);
- erts_initialized = 1;
- }
- static void
- erl_init(int ncpu)
- {
- init_benchmarking();
- #ifdef ERTS_SMP
- erts_system_block_init();
- #endif
- erts_init_monitors();
- erts_init_gc();
- erts_init_time();
- erts_init_sys_common_misc();
- erts_init_process(ncpu);
- erts_init_scheduling(use_multi_run_queue,
- no_schedulers,
- no_schedulers_online);
- erts_init_cpu_topology(); /* Must be after init_scheduling */
- H_MIN_SIZE = erts_next_heap_size(H_MIN_SIZE, 0);
- BIN_VH_MIN_SIZE = erts_next_heap_size(BIN_VH_MIN_SIZE, 0);
- erts_init_trace();
- erts_init_binary();
- erts_init_bits();
- erts_init_fun_table();
- init_atom_table();
- init_export_table();
- init_module_table();
- init_register_table();
- init_message();
- erts_bif_info_init();
- erts_ddll_init();
- init_emulator();
- erts_bp_init();
- init_db(); /* Must be after init_emulator */
- erts_bif_timer_init();
- erts_init_node_tables();
- init_dist();
- erl_drv_thr_init();
- init_io();
- init_copy();
- init_load();
- erts_init_bif();
- erts_init_bif_chksum();
- erts_init_bif_binary();
- erts_init_bif_re();
- erts_init_unicode(); /* after RE to get access to PCRE unicode */
- erts_delay_trap = erts_export_put(am_erlang, am_delay_trap, 2);
- erts_late_init_process();
- #if HAVE_ERTS_MSEG
- erts_mseg_late_init(); /* Must be after timer (erts_init_time()) and thread
- initializations */
- #endif
- #ifdef HIPE
- hipe_mode_switch_init(); /* Must be after init_load/beam_catches/init */
- #endif
- packet_parser_init();
- erl_nif_init();
- }
- static void
- init_shared_memory(int argc, char **argv)
- {
- #ifdef HYBRID
- int arg_size = 0;
- global_heap_sz = erts_next_heap_size(global_heap_sz,0);
- /* Make sure arguments will fit on the heap, no one else will check! */
- while (argc--)
- arg_size += 2 + strlen(argv[argc]);
- if (global_heap_sz < arg_size)
- global_heap_sz = erts_next_heap_size(arg_size,1);
- #ifndef INCREMENTAL
- global_heap = (Eterm *) ERTS_HEAP_ALLOC(ERTS_ALC_T_HEAP,
- sizeof(Eterm) * global_heap_sz);
- global_hend = global_heap + global_heap_sz;
- global_htop = global_heap;
- global_high_water = global_heap;
- global_old_hend = global_old_htop = global_old_heap = NULL;
- #endif
- global_gen_gcs = 0;
- global_max_gen_gcs = (Uint16) erts_smp_atomic32_read(&erts_max_gen_gcs);
- global_gc_flags = erts_default_process_flags;
- erts_global_offheap.mso = NULL;
- #ifndef HYBRID /* FIND ME! */
- erts_global_offheap.funs = NULL;
- #endif
- erts_global_offheap.overhead = 0;
- #endif
- #ifdef INCREMENTAL
- erts_init_incgc();
- #endif
- }
- static void
- erl_first_process_otp(char* modname, void* code, unsigned size, int argc, char** argv)
- {
- int i;
- Eterm start_mod;
- Eterm args;
- Eterm* hp;
- Process parent;
- ErlSpawnOpts so;
- Eterm env;
-
- start_mod = am_atom_put(modname, sys_strlen(modname));
- if (erts_find_function(start_mod, am_start, 2) == NULL) {
- erl_exit(5, "No function %s:start/2\n", modname);
- }
- /*
- * We need a dummy parent process to be able to call erl_create_process().
- */
- erts_init_empty_process(&parent);
- erts_smp_proc_lock(&parent, ERTS_PROC_LOCK_MAIN);
- hp = HAlloc(&parent, argc*2 + 4);
- args = NIL;
- for (i = argc-1; i >= 0; i--) {
- int len = sys_strlen(argv[i]);
- args = CONS(hp, new_binary(&parent, (byte*)argv[i], len), args);
- hp += 2;
- }
- env = new_binary(&parent, code, size);
- args = CONS(hp, args, NIL);
- hp += 2;
- args = CONS(hp, env, args);
- so.flags = 0;
- (void) erl_create_process(&parent, start_mod, am_start, args, &so);
- erts_smp_proc_unlock(&parent, ERTS_PROC_LOCK_MAIN);
- erts_cleanup_empty_process(&parent);
- }
- Eterm
- erts_preloaded(Process* p)
- {
- Eterm previous;
- int j;
- int need;
- Eterm mod;
- Eterm* hp;
- char* name;
- const Preload *preload = sys_preloaded();
- j = 0;
- while (preload[j].name != NULL) {
- j++;
- }
- previous = NIL;
- need = 2*j;
- hp = HAlloc(p, need);
- j = 0;
- while ((name = preload[j].name) != NULL) {
- mod = am_atom_put(name, sys_strlen(name));
- previous = CONS(hp, mod, previous);
- hp += 2;
- j++;
- }
- return previous;
- }
- /* static variables that must not change (use same values at restart) */
- static char* program;
- static char* init = "init";
- static char* boot = "boot";
- static int boot_argc;
- static char** boot_argv;
- static char *
- get_arg(char* rest, char* next, int* ip)
- {
- if (*rest == '\0') {
- if (next == NULL) {
- erts_fprintf(stderr, "too few arguments\n");
- erts_usage();
- }
- (*ip)++;
- return next;
- }
- return rest;
- }
- static void
- load_preloaded(void)
- {
- int i;
- int res;
- Preload* preload_p;
- Eterm module_name;
- byte* code;
- char* name;
- int length;
- if ((preload_p = sys_preloaded()) == NULL) {
- return;
- }
- i = 0;
- while ((name = preload_p[i].name) != NULL) {
- length = preload_p[i].size;
- module_name = am_atom_put(name, sys_strlen(name));
- if ((code = sys_preload_begin(&preload_p[i])) == 0)
- erl_exit(1, "Failed to find preloaded code for module %s\n",
- name);
- res = erts_load_module(NULL, 0, NIL, &module_name, code, length);
- sys_preload_end(&preload_p[i]);
- if (res < 0)
- erl_exit(1,"Failed loading preloaded module %s\n", name);
- i++;
- }
- }
- /* be helpful (or maybe downright rude:-) */
- void erts_usage(void)
- {
- erts_fprintf(stderr, "Usage: %s [flags] [ -- [init_args] ]\n", progname(program));
- erts_fprintf(stderr, "The flags are:\n\n");
- /* erts_fprintf(stderr, "-# number set the number of items to be used in traces etc\n"); */
- erts_fprintf(stderr, "-a size suggested stack size in kilo words for threads\n");
- erts_fprintf(stderr, " in the async-thread pool, valid range is [%d-%d]\n",
- ERTS_ASYNC_THREAD_MIN_STACK_SIZE,
- ERTS_ASYNC_THREAD_MAX_STACK_SIZE);
- erts_fprintf(stderr, "-A number set number of threads in async thread pool,\n");
- erts_fprintf(stderr, " valid range is [0-%d]\n",
- ERTS_MAX_NO_OF_ASYNC_THREADS);
- erts_fprintf(stderr, "-B[c|d|i] c to have Ctrl-c interrupt the Erlang shell,\n");
- erts_fprintf(stderr, " d (or no extra option) to disable the break\n");
- erts_fprintf(stderr, " handler, i to ignore break signals\n");
- /* erts_fprintf(stderr, "-b func set the boot function (default boot)\n"); */
- erts_fprintf(stderr, "-c disable continuous date/time correction with\n");
- erts_fprintf(stderr, " respect to uptime\n");
- erts_fprintf(stderr, "-d don't write a crash dump for internally detected errors\n");
- erts_fprintf(stderr, " (halt(String) will still produce a crash dump)\n");
- erts_fprintf(stderr, "-hms size set minimum heap size in words (default %d)\n",
- H_DEFAULT_SIZE);
- erts_fprintf(stderr, "-hmbs size set minimum binary virtual heap size in words (default %d)\n",
- VH_DEFAULT_SIZE);
- /* erts_fprintf(stderr, "-i module set the boot module (default init)\n"); */
- erts_fprintf(stderr, "-K boolean enable or disable kernel poll\n");
- erts_fprintf(stderr, "-l turn on auto load tracing\n");
- erts_fprintf(stderr, "-M<X> <Y> memory allocator switches,\n");
- erts_fprintf(stderr, " see the erts_alloc(3) documentation for more info.\n");
- erts_fprintf(stderr, "-P number set maximum number of processes on this node,\n");
- erts_fprintf(stderr, " valid range is [%d-%d]\n",
- ERTS_MIN_PROCESSES, ERTS_MAX_PROCESSES);
- erts_fprintf(stderr, "-R number set compatibility release number,\n");
- erts_fprintf(stderr, " valid range [%d-%d]\n",
- ERTS_MIN_COMPAT_REL, this_rel_num());
- erts_fprintf(stderr, "-r force ets memory block to be moved on realloc\n");
- erts_fprintf(stderr, "-rg amount set reader groups limit\n");
- erts_fprintf(stderr, "-sbt type set scheduler bind type, valid types are:\n");
- erts_fprintf(stderr, " u|ns|ts|ps|s|nnts|nnps|tnnps|db\n");
- erts_fprintf(stderr, "-sct cput set cpu topology,\n");
- erts_fprintf(stderr, " see the erl(1) documentation for more info.\n");
- erts_fprintf(stderr, "-swt val set scheduler wakeup threshold, valid values are:\n");
- erts_fprintf(stderr, " very_low|low|medium|high|very_high.\n");
- erts_fprintf(stderr, "-sss size suggested stack size in kilo words for scheduler threads,\n");
- erts_fprintf(stderr, " valid range is [%d-%d]\n",
- ERTS_SCHED_THREAD_MIN_STACK_SIZE,
- ERTS_SCHED_THREAD_MAX_STACK_SIZE);
- erts_fprintf(stderr, "-S n1:n2 set number of schedulers (n1), and number of\n");
- erts_fprintf(stderr, " schedulers online (n2), valid range for both\n");
- erts_fprintf(stderr, " numbers are [1-%d]\n",
- ERTS_MAX_NO_OF_SCHEDULERS);
- 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",
- MIN_ATOM_TABLE_SIZE, MAX_ATOM_TABLE_SIZE);
- erts_fprintf(stderr, "-T number set modified timing level,\n");
- erts_fprintf(stderr, " valid range is [0-%d]\n",
- ERTS_MODIFIED_TIMING_LEVELS-1);
- erts_fprintf(stderr, "-V print Erlang version\n");
- erts_fprintf(stderr, "-v turn on chatty mode (GCs will be reported etc)\n");
- erts_fprintf(stderr, "-W<i|w> set error logger warnings mapping,\n");
- erts_fprintf(stderr, " see error_logger documentation for details\n");
- erts_fprintf(stderr, "-zdbbl size set the distribution buffer busy limit in kilobytes\n");
- erts_fprintf(stderr, " valid range is [1-%d]\n", INT_MAX/1024);
- erts_fprintf(stderr, "\n");
- erts_fprintf(stderr, "Note that if the emulator is started with erlexec (typically\n");
- erts_fprintf(stderr, "from the erl script), these flags should be specified with +.\n");
- erts_fprintf(stderr, "\n\n");
- erl_exit(-1, "");
- }
- #ifdef USE_THREADS
- /*
- * allocators for thread lib
- */
- static void *ethr_std_alloc(size_t size)
- {
- return erts_alloc_fnf(ERTS_ALC_T_ETHR_STD, (Uint) size);
- }
- static void *ethr_std_realloc(void *ptr, size_t size)
- {
- return erts_realloc_fnf(ERTS_ALC_T_ETHR_STD, ptr, (Uint) size);
- }
- static void ethr_std_free(void *ptr)
- {
- erts_free(ERTS_ALC_T_ETHR_STD, ptr);
- }
- static void *ethr_sl_alloc(size_t size)
- {
- return erts_alloc_fnf(ERTS_ALC_T_ETHR_SL, (Uint) size);
- }
- static void *ethr_sl_realloc(void *ptr, size_t size)
- {
- return erts_realloc_fnf(ERTS_ALC_T_ETHR_SL, ptr, (Uint) size);
- }
- static void ethr_sl_free(void *ptr)
- {
- erts_free(ERTS_ALC_T_ETHR_SL, ptr);
- }
- static void *ethr_ll_alloc(size_t size)
- {
- return erts_alloc_fnf(ERTS_ALC_T_ETHR_LL, (Uint) size);
- }
- static void *ethr_ll_realloc(void *ptr, size_t size)
- {
- return erts_realloc_fnf(ERTS_ALC_T_ETHR_LL, ptr, (Uint) size);
- }
- static void ethr_ll_free(void *ptr)
- {
- erts_free(ERTS_ALC_T_ETHR_LL, ptr);
- }
- #endif
- static int
- early_init(int *argc, char **argv) /*
- * Only put things here which are
- * really important initialize
- * early!
- */
- {
- ErtsAllocInitOpts alloc_opts = ERTS_ALLOC_INIT_DEF_OPTS_INITER;
- int ncpu;
- int ncpuonln;
- int ncpuavail;
- int schdlrs;
- int schdlrs_onln;
- int max_main_threads;
- int max_reader_groups;
- int reader_groups;
- use_multi_run_queue = 1;
- erts_printf_eterm_func = erts_printf_term;
- erts_disable_tolerant_timeofday = 0;
- display_items = 200;
- display_loads = 0;
- erts_backtrace_depth = DEFAULT_BACKTRACE_SIZE;
- erts_async_max_threads = 0;
- erts_async_thread_suggested_stack_size = ERTS_ASYNC_THREAD_MIN_STACK_SIZE;
- H_MIN_SIZE = H_DEFAULT_SIZE;
- BIN_VH_MIN_SIZE = VH_DEFAULT_SIZE;
- erts_initialized = 0;
- erts_use_sender_punish = 1;
- erts_pre_early_init_cpu_topology(&max_reader_groups,
- &ncpu,
- &ncpuonln,
- &ncpuavail);
- #ifndef ERTS_SMP
- ncpu = 1;
- ncpuonln = 1;
- ncpuavail = 1;
- #endif
- ignore_break = 0;
- replace_intr = 0;
- program = argv[0];
- erts_modified_timing_level = -1;
- erts_compat_rel = this_rel_num();
- erts_use_r9_pids_ports = 0;
- erts_sys_pre_init();
- #ifdef ERTS_ENABLE_LOCK_CHECK
- erts_lc_init();
- #endif
- #ifdef ERTS_SMP
- erts_smp_atomic_init(&erts_writing_erl_crash_dump, 0L);
- #else
- erts_writing_erl_crash_dump = 0;
- #endif
- erts_smp_atomic32_init(&erts_max_gen_gcs, (erts_aint32_t) ((Uint16) -1));
- erts_pre_init_process();
- #if defined(USE_THREADS) && !defined(ERTS_SMP)
- main_thread = erts_thr_self();
- #endif
- /*
- * We need to know the number of schedulers to use before we
- * can initialize the allocators.
- */
- no_schedulers = (Uint) (ncpu > 0 ? ncpu : 1);
- no_schedulers_online = (ncpuavail > 0
- ? ncpuavail
- : (ncpuonln > 0 ? ncpuonln : no_schedulers));
- schdlrs = no_schedulers;
- schdlrs_onln = no_schedulers_online;
- if (argc && argv) {
- int i = 1;
- while (i < *argc) {
- if (strcmp(argv[i], "--") == 0) { /* end of emulator options */
- i++;
- break;
- }
- if (argv[i][0] == '-') {
- switch (argv[i][1]) {
- case 'r': {
- char *sub_param = argv[i]+2;
- if (has_prefix("g", sub_param)) {
- char *arg = get_arg(sub_param+1, argv[i+1], &i);
- if (sscanf(arg, "%d", &max_reader_groups) != 1) {
- erts_fprintf(stderr,
- "bad reader groups limit: %s\n", arg);
- erts_usage();
- }
- if (max_reader_groups < 0) {
- erts_fprintf(stderr,
- "bad reader groups limit: %d\n",
- max_reader_groups);
- erts_usage();
- }
- }
- break;
- }
- case 'S' : {
- int tot, onln;
- char *arg = get_arg(argv[i]+2, argv[i+1], &i);
- switch (sscanf(arg, "%d:%d", &tot, &onln)) {
- case 0:
- switch (sscanf(arg, ":%d", &onln)) {
- case 1:
- tot = no_schedulers;
- goto chk_S;
- default:
- goto bad_S;
- }
- case 1:
- onln = tot < schdlrs_onln ? tot : schdlrs_onln;
- case 2:
- chk_S:
- if (tot > 0)
- schdlrs = tot;
- else
- schdlrs = no_schedulers + tot;
- if (onln > 0)
- schdlrs_onln = onln;
- else
- schdlrs_onln = no_schedulers_online + onln;
- if (schdlrs < 1 || ERTS_MAX_NO_OF_SCHEDULERS < schdlrs) {
- erts_fprintf(stderr,
- "bad amount of schedulers %d\n",
- tot);
- erts_usage();
- }
- if (schdlrs_onln < 1 || schdlrs < schdlrs_onln) {
- erts_fprintf(stderr,
- "bad amount of schedulers online %d "
- "(total amount of schedulers %d)\n",
- schdlrs_onln, schdlrs);
- erts_usage();
- }
- break;
- default:
- bad_S:
- erts_fprintf(stderr,
- "bad amount of schedulers %s\n",
- arg);
- erts_usage();
- break;
- }
- VERBOSE(DEBUG_SYSTEM,
- ("using %d:%d scheduler(s)\n", tot, onln));
- break;
- }
- default:
- break;
- }
- }
- i++;
- }
- }
- #ifdef ERTS_SMP
- no_schedulers = schdlrs;
- no_schedulers_online = schdlrs_onln;
- erts_no_schedulers = (Uint) no_schedulers;
- #endif
- erts_alloc_init(argc, argv, &alloc_opts); /* Handles (and removes)
- -M flags. */
- /* Require allocators */
- erts_early_init_scheduling();
- erts_init_utils();
- erts_early_init_cpu_topology(no_schedulers,
- &max_main_threads,
- max_reader_groups,
- &reader_groups);
- #ifdef USE_THREADS
- {
- erts_thr_late_init_data_t elid = ERTS_THR_LATE_INIT_DATA_DEF_INITER;
- elid.mem.std.alloc = ethr_std_alloc;
- elid.mem.std.realloc = ethr_std_realloc;
- elid.mem.std.free = ethr_std_free;
- elid.mem.sl.alloc = ethr_sl_alloc;
- elid.mem.sl.realloc = ethr_sl_realloc;
- elid.mem.sl.free = ethr_sl_free;
- elid.mem.ll.alloc = ethr_ll_alloc;
- elid.mem.ll.realloc = ethr_ll_realloc;
- elid.mem.ll.free = ethr_ll_free;
- elid.main_threads = max_main_threads;
- elid.reader_groups = reader_groups;
- erts_thr_late_init(&elid);
- }
- #endif
- #ifdef ERTS_ENABLE_LOCK_CHECK
- erts_lc_late_init();
- #endif
-
- #ifdef ERTS_ENABLE_LOCK_COUNT
- erts_lcnt_late_init();
- #endif
- #if defined(HIPE)
- hipe_signal_init(); /* must be done very early */
- #endif
- erl_sys_init();
- erl_sys_args(argc, argv);
- erts_ets_realloc_always_moves = 0;
- erts_ets_always_compress = 0;
- erts_dist_buf_busy_limit = ERTS_DE_BUSY_LIMIT;
- return ncpu;
- }
- #ifndef ERTS_SMP
- static void set_main_stack_size(void)
- {
- if (erts_sched_thread_suggested_stack_size > 0) {
- # if HAVE_DECL_GETRLIMIT && HAVE_DECL_SETRLIMIT && HAVE_DECL_RLIMIT_STACK
- struct rlimit rl;
- int bytes = erts_sched_thread_suggested_stack_size * sizeof(Uint) * 1024;
- if (getrlimit(RLIMIT_STACK, &rl) != 0 ||
- (rl.rlim_cur = bytes, setrlimit(RLIMIT_STACK, &rl) != 0)) {
- erts_fprintf(stderr, "failed to set stack size for scheduler "
- "thread to %d bytes\n", bytes);
- erts_usage();
- }
- # else
- erts_fprintf(stderr, "no OS support for dynamic stack size limit\n");
- erts_usage();
- # endif
- }
- }
- #endif
- void
- erl_start(int argc, char **argv)
- {
- int i = 1;
- char* arg=NULL;
- char* Parg = NULL;
- int have_break_handler = 1;
- char envbuf[21]; /* enough for any 64-bit integer */
- size_t envbufsz;
- int async_max_threads = erts_async_max_threads;
- int ncpu = early_init(&argc, argv);
- envbufsz = sizeof(envbuf);
- if (erts_sys_getenv(ERL_MAX_ETS_TABLES_ENV, envbuf, &envbufsz) == 0)
- user_requested_db_max_tabs = atoi(envbuf);
- else
- user_requested_db_max_tabs = 0;
- envbufsz = sizeof(envbuf);
- if (erts_sys_getenv("ERL_FULLSWEEP_AFTER", envbuf, &envbufsz) == 0) {
- Uint16 max_gen_gcs = atoi(envbuf);
- erts_smp_atomic32_set(&erts_max_gen_gcs, (erts_aint32_t) max_gen_gcs);
- }
- envbufsz = sizeof(envbuf);
- if (erts_sys_getenv("ERL_THREAD_POOL_SIZE", envbuf, &envbufsz) == 0) {
- async_max_threads = atoi(envbuf);
- }
- #if (defined(__APPLE__) && defined(__MACH__)) || defined(__DARWIN__)
- /*
- * The default stack size on MacOS X is too small for pcre.
- */
- erts_sched_thread_suggested_stack_size = 256;
- #endif
- #ifdef DEBUG
- verbose = DEBUG_DEFAULT;
- #endif
- erts_error_logger_warnings = am_error;
- while (i < argc) {
- if (argv[i][0] != '-') {
- erts_usage();
- }
- if (strcmp(argv[i], "--") == 0) { /* end of emulator options */
- i++;
- break;
- }
- switch (argv[i][1]) {
- /*
- * NOTE: -M flags are handled (and removed from argv) by
- * erts_alloc_init().
- *
- * The -d, -m, -S, -t, and -T flags was removed in
- * Erlang 5.3/OTP R9C.
- *
- * -S, and -T has been reused in Erlang 5.5/OTP R11B.
- *
- * -d has been reused in a patch R12B-4.
- */
- case '#' :
- arg = get_arg(argv[i]+2, argv[i+1], &i);
- if ((display_items = atoi(arg)) == 0) {
- erts_fprintf(stderr, "bad display items%s\n", arg);
- erts_usage();
- }
- VERBOSE(DEBUG_SYSTEM,
- ("using display items %d\n",display_items));
- break;
- case 'f':
- if (!strncmp(argv[i],"-fn",3)) {
- arg = get_arg(argv[i]+3, argv[i+1], &i);
- switch (*arg) {
- case 'u':
- erts_set_user_requested_filename_encoding(ERL_FILENAME_UTF8);
- break;
- case 'l':
- erts_set_user_requested_filename_encoding(ERL_FILENAME_LATIN1);
- break;
- case 'a':
- erts_set_user_requested_filename_encoding(ERL_FILENAME_UNKNOWN);
- default:
- erts_fprintf(stderr, "bad filename encoding %s, can be (l,u or a)\n", arg);
- erts_usage();
- }
- break;
- } else {
- erts_fprintf(stderr, "%s unknown flag %s\n", argv[0], argv[i]);
- erts_usage();
- }
- case 'l':
- display_loads++;
- break;
- case 'v':
- #ifdef DEBUG
- if (argv[i][2] == '\0') {
- verbose |= DEBUG_SYSTEM;
- } else {
- char *ch;
- for (ch = argv[i]+2; *ch != '\0'; ch++) {
- switch (*ch) {
- case 's': verbose |= DEBUG_SYSTEM; break;
- case 'g': verbose |= DEBUG_PRIVATE_GC; break;
- case 'h': verbose |= DEBUG_HYBRID_GC; break;
- case 'M': verbose |= DEBUG_MEMORY; break;
- case 'a': verbose |= DEBUG_ALLOCATION; break;
- case 't': verbose |= DEBUG_THREADS; break;
- case 'p': verbose |= DEBUG_PROCESSES; break;
- case 'm': verbose |= DEBUG_MESSAGES; break;
- default : erts_fprintf(stderr,"Unknown verbose option: %c\n",*ch);
- }
- }
- }
- erts_printf("Verbose level: ");
- if (verbose & DEBUG_SYSTEM) erts_printf("SYSTEM ");
- if (verbose & DEBUG_PRIVATE_GC) erts_printf("PRIVATE_GC ");
- if (verbose & DEBUG_HYBRID_GC) erts_printf("HYBRID_GC ");
- if (verbose & DEBUG_MEMORY) erts_printf("PARANOID_MEMORY ");
- if (verbose & DEBUG_ALLOCATION) erts_printf("ALLOCATION ");
- if (verbose & DEBUG_THREADS) erts_printf("THREADS ");
- if (verbose & DEBUG_PROCESSES) erts_printf("PROCESSES ");
- if (verbose & DEBUG_MESSAGES) erts_printf("MESSAGES ");
- erts_printf("\n");
- #else
- erts_fprintf(stderr, "warning: -v (only in debug compiled code)\n");
- #endif
- break;
- case 'V' :
- {
- char tmp[256];
- tmp[0] = tmp[1] = '\0';
- #ifdef DEBUG
- strcat(tmp, ",DEBUG");
- #endif
- #ifdef ERTS_SMP
- strcat(tmp, ",SMP");
- #endif
- #ifdef USE_THREADS
- strcat(tmp, ",ASYNC_THREADS");
- #endif
- #ifdef HIPE
- strcat(tmp, ",HIPE");
- #endif
- #ifdef INCREMENTAL
- strcat(tmp, ",INCREMENTAL_GC");
- #endif
- #ifdef HYBRID
- strcat(tmp, ",HYBRID");
- #endif
- erts_fprintf(stderr, "Erlang ");
- if (tmp[1]) {
- erts_fprintf(stderr, "(%s) ", tmp+1);
- }
- erts_fprintf(stderr, "(" EMULATOR ") emulator version "
- ERLANG_VERSION "\n");
- erl_exit(0, "");
- }
- break;
- case 'H': /* undocumented */
- fprintf(stderr, "The undocumented +H option has been removed (R10B-6).\n\n");
- break;
- case 'h': {
- char *sub_param = argv[i]+2;
- /* set default heap size
- *
- * h|ms - min_heap_size
- * h|mbs - min_bin_vheap_size
- *
- */
- if (has_prefix("mbs", sub_param)) {
- arg = get_arg(sub_param+3, argv[i+1], &i);
- if ((BIN_VH_MIN_SIZE = atoi(arg)) <= 0) {
- erts_fprintf(stderr, "bad heap size %s\n", arg);
- erts_usage();
- }
- VERBOSE(DEBUG_SYSTEM, ("using minimum binary virtual heap size %d\n", BIN_VH_MIN_SIZE));
- } else if (has_prefix("ms", sub_param)) {
- arg = get_arg(sub_param+2, argv[i+1], &i);
- if ((H_MIN_SIZE = atoi(arg)) <= 0) {
- erts_fprintf(stderr, "bad heap size %s\n", arg);
- erts_usage();
- }
- VERBOSE(DEBUG_SYSTEM, ("using minimum heap size %d\n", H_MIN_SIZE));
- } else {
- /* backward compatibility */
- arg = get_arg(argv[i]+2, argv[i+1], &i);
- if ((H_MIN_SIZE = atoi(arg)) <= 0) {
- erts_fprintf(stderr, "bad heap size %s\n", arg);
- erts_usage();
- }
- VERBOSE(DEBUG_SYSTEM, ("using minimum heap size %d\n", H_MIN_SIZE));
- }
- break;
- }
- case 'd':
- /*
- * Never produce crash dumps for internally detected
- * errors; only produce a core dump. (Generation of
- * crash dumps is destructive and makes it impossible
- * to inspect the contents of process heaps in the
- * core dump.)
- */
- erts_no_crash_dump = 1;
- break;
- case 'e':
- if (sys_strcmp("c", argv[i]+2) == 0) {
- erts_ets_always_compress = 1;
- }
- else {
- /* set maximum number of ets tables */
- arg = get_arg(argv[i]+2, argv[i+1], &i);
- if (( user_requested_db_max_tabs = atoi(arg) ) < 0) {
- erts_fprintf(stderr, "bad maximum number of ets tables %s\n", arg);
- erts_usage();
- }
- VERBOSE(DEBUG_SYSTEM,
- ("using maximum number of ets tables %d\n",
- user_requested_db_max_tabs));
- }
- break;
- case 'i':
- /* define name of module for initial function */
- init = get_arg(argv[i]+2, argv[i+1], &i);
- break;
- case 'b':
- /* define name of initial function */
- boot = get_arg(argv[i]+2, argv[i+1], &i);
- break;
- case 'B':
- if (argv[i][2] == 'i') /* +Bi */
- ignore_break = 1;
- else if (argv[i][2] == 'c') /* +Bc */
- replace_intr = 1;
- else if (argv[i][2] == 'd') /* +Bd */
- have_break_handler = 0;
- else if (argv[i+1][0] == 'i') { /* +B i */
- get_arg(argv[i]+2, argv[i+1], &i);
- ignore_break = 1;
- }
- else if (argv[i+1][0] == 'c') { /* +B c */
- get_arg(argv[i]+2, argv[i+1], &i);
- replace_intr = 1;
- }
- else if (argv[i+1][0] == 'd') { /* +B d */
- get_arg(argv[i]+2, argv[i+1], &i);
- have_break_handler = 0;
- }
- else /* +B */
- have_break_handler = 0;
- break;
- case 'K':
- /* If kernel poll support is present,
- erl_sys_args() will remove the K parameter
- and value */
- get_arg(argv[i]+2, argv[i+1], &i);
- erts_fprintf(stderr,
- "kernel-poll not supported; \"K\" parameter ignored\n",
- arg);
- break;
- case 'P':
- /* set maximum number of processes */
- Parg = get_arg(argv[i]+2, argv[i+1], &i);
- erts_max_processes = atoi(Parg);
- /* Check of result is delayed until later. This is because +R
- may be given after +P. */
- break;
- case 'S' : /* Was handled in early_init() just read past it */
- (void) get_arg(argv[i]+2, argv[i+1], &i);
- break;
- case 's' : {
- char *estr;
- int res;
- char *sub_param = argv[i]+2;
- if (has_prefix("bt", sub_param)) {
- arg = get_arg(sub_param+2, argv[i+1], &i);
- res = erts_init_scheduler_bind_type_string(arg);
- if (res != ERTS_INIT_SCHED_BIND_TYPE_SUCCESS) {
- switch (res) {
- case ERTS_INIT_SCHED_BIND_TYPE_NOT_SUPPORTED:
- estr = "not supported";
- break;
- case ERTS_INIT_SCHED_BIND_TYPE_ERROR_NO_CPU_TOPOLOGY:
- estr = "no cpu topology available";
- break;
- case ERTS_INIT_SCHED_BIND_TYPE_ERROR_NO_BAD_TYPE:
- estr = "invalid type";
- break;
- default:
- estr = "undefined error";
- break;
- }
- erts_fprintf(stderr,
- "setting scheduler bind type '%s' failed: %s\n",
- arg,
- estr);
- erts_usage();
- }
- }
- else if (has_prefix("ct", sub_param)) {
- arg = get_arg(sub_param+2, argv[i+1], &i);
- res = erts_init_cpu_topology_string(arg);
- if (res != ERTS_INIT_CPU_TOPOLOGY_OK) {
- switch (res) {
- case ERTS_INIT_CPU_TOPOLOGY_INVALID_ID:
- estr = "invalid identifier";
- break;
- case ERTS_INIT_CPU_TOPOLOGY_INVALID_ID_RANGE:
- estr = "invalid identifier range";
- break;
- case ERTS_INIT_CPU_TOPOLOGY_INVALID_HIERARCHY:
- estr = "invalid hierarchy";
- break;
- case ERTS_INIT_CPU_TOPOLOGY_INVALID_ID_TYPE:
- estr = "invalid identifier type";
- break;
- case ERTS_INIT_CPU_TOPOLOGY_INVALID_NODES:
- estr = "invalid nodes declaration";
- break;
- case ERTS_INIT_CPU_TOPOLOGY_MISSING_LID:
- estr = "missing logical identifier";
- break;
- case ERTS_INIT_CPU_TOPOLOGY_NOT_UNIQUE_LIDS:
- estr = "not unique logical identifiers";
- break;
- case ERTS_INIT_CPU_TOPOLOGY_NOT_UNIQUE_ENTITIES:
- estr = "not unique entities";
- break;
- case ERTS_INIT_CPU_TOPOLOGY_MISSING:
- estr = "missing cpu topology";
- break;
- default:
- estr = "undefined error";
- break;
- }
- erts_fprintf(stderr,
- "bad cpu topology '%s': %s\n",
- arg,
- estr);
- erts_usage();
- }
- }
- else if (sys_strcmp("mrq", sub_param) == 0)
- use_multi_run_queue = 1;
- else if (sys_strcmp("nsp", sub_param) == 0)
- erts_use_sender_punish = 0;
- else if (sys_strcmp("srq", sub_param) == 0)
- use_multi_run_queue = 0;
- else if (sys_strcmp("wt", sub_param) == 0) {
- arg = get_arg(sub_param+2, argv[i+1], &i);
- if (erts_sched_set_wakeup_limit(arg) != 0) {
- erts_fprintf(stderr, "scheduler wakeup threshold: %s\n",
- arg);
- erts_usage();
- }
- VERBOSE(DEBUG_SYSTEM,
- ("scheduler wakup threshold: %s\n", arg));
- }
- else if (has_prefix("ss", sub_param)) {
- /* suggested stack size (Kilo Words) for scheduler threads */
- arg = get_arg(sub_param+2, argv[i+1], &i);
- erts_sched_thread_suggested_stack_size = atoi(arg);
- if ((erts_sched_thread_suggested_stack_size
- < ERTS_SCHED_THREAD_MIN_STACK_SIZE)
- || (erts_sched_thread_suggested_stack_size >
- ERTS_SCHED_THREAD_MAX_STACK_SIZE)) {
- erts_fprintf(stderr, "bad stack size for scheduler threads %s\n",
- arg);
- erts_usage();
- }
- VERBOSE(DEBUG_SYSTEM,
- ("suggested scheduler thread stack size %d kilo words\n",
- erts_sched_thread_suggested_stack_size));
- }
- else {
- erts_fprintf(stderr, "bad scheduling option %s\n", argv[i]);
- erts_usage();
- }
- break;
- }
- case 't':
- /* set atom table size */
- arg = get_arg(argv[i]+2, argv[i+1], &i);
- errno = 0;
- erts_atom_table_size = strtol(arg, NULL, 10);
- if (errno != 0 ||
- erts_atom_table_size < MIN_ATOM_TABLE_SIZE ||
- erts_atom_table_size > MAX_ATOM_TABLE_SIZE) {
- erts_fprintf(stderr, "bad atom table size %s\n", arg);
- erts_usage();
- }
- VERBOSE(DEBUG_SYSTEM,
- ("setting maximum number of atoms to %d\n",
- erts_atom_table_size));
- break;
- case 'T' :
- arg = get_arg(argv[i]+2, argv[i+1], &i);
- errno = 0;
- erts_modified_timing_level = atoi(arg);
- if ((erts_modified_timing_level == 0 && errno != 0)
- || erts_modified_timing_level < 0
- || erts_modified_timing_level >= ERTS_MODIFIED_TIMING_LEVELS) {
- erts_fprintf(stderr, "bad modified timing level %s\n", arg);
- erts_usage();
- }
- else {
- VERBOSE(DEBUG_SYSTEM,
- ("using modified timing level %d\n",
- erts_modified_timing_level));
- }
- break;
- case 'R': {
- /* set compatibility release */
- arg = get_arg(argv[i]+2, argv[i+1], &i);
- erts_compat_rel = atoi(arg);
- if (erts_compat_rel < ERTS_MIN_COMPAT_REL
- || erts_compat_rel > this_rel_num()) {
- erts_fprintf(stderr, "bad compatibility release number %s\n", arg);
- erts_usage();
- }
- ASSERT(ERTS_MIN_COMPAT_REL >= 7);
- switch (erts_compat_rel) {
- case 7:
- case 8:
- case 9:
- erts_use_r9_pids_ports = 1;
- default:
- break;
- }
- break;
- }
- case 'A':
- /* set number of threads in thread pool */
- arg = get_arg(argv[i]+2, argv[i+1], &i);
- if (((async_max_threads = atoi(arg)) < 0) ||
- (async_max_threads > ERTS_MAX_NO_OF_ASYNC_THREADS)) {
- erts_fprintf(stderr, "bad number of async threads %s\n", arg);
- erts_usage();
- }
- VERBOSE(DEBUG_SYSTEM, ("using %d async-threads\n",
- async_max_threads));
- break;
- case 'a':
- /* suggested stack size (Kilo Words) for threads in thread pool */
- arg = get_arg(argv[i]+2, argv[i+1], &i);
- erts_async_thread_suggested_stack_size = atoi(arg);
-
- if ((erts_async_thread_suggested_stack_size
- < ERTS_ASYNC_THREAD_MIN_STACK_SIZE)
- || (erts_async_thread_suggested_stack_size >
- ERTS_ASYNC_THREAD_MAX_STACK_SIZE)) {
- erts_fprintf(stderr, "bad stack size for async threads %s\n",
- arg);
- erts_usage();
- }
- VERBOSE(DEBUG_SYSTEM,
- ("suggested async-thread stack size %d kilo words\n",
- erts_async_thread_suggested_stack_size));
- break;
- case 'r': {
- char *sub_param = argv[i]+2;
- if (has_prefix("g", sub_param)) {
- get_arg(sub_param+1, argv[i+1], &i);
- /* already handled */
- }
- else {
- erts_ets_realloc_always_moves = 1;
- }
- break;
- }
- case 'n': /* XXX obsolete */
- break;
- case 'c':
- if (argv[i][2] == 0) { /* -c: documented option */
- erts_disable_tolerant_timeofday = 1;
- }
- #ifdef ERTS_OPCODE_COUNTER_SUPPORT
- else if (argv[i][2] == 'i') { /* -ci: undcoumented option*/
- count_instructions = 1;
- }
- #endif
- break;
- case 'W':
- arg = get_arg(argv[i]+2, argv[i+1], &i);
- switch (arg[0]) {
- case 'i':
- erts_error_logger_warnings = am_info;
- break;
- case 'w':
- erts_error_logger_warnings = am_warning;
- break;
- case 'e': /* The default */
- erts_error_logger_warnings = am_error;
- default:
- erts_fprintf(stderr, "unrecognized warning_map option %s\n", arg);
- erts_usage();
- }
- break;
- case 'z': {
- char *sub_param = argv[i]+2;
- int new_limit;
- if (has_prefix("dbbl", sub_param)) {
- arg = get_arg(sub_param+4, argv[i+1], &i);
- new_limit = atoi(arg);
- if (new_limit < 1 || INT_MAX/1024 < new_limit) {
- erts_fprintf(stderr, "Invalid dbbl limit: %d\n", new_limit);
- erts_usage();
- } else {
- erts_dist_buf_busy_limit = new_limit*1024;
- }
- } else {
- erts_fprintf(stderr, "bad -z option %s\n", argv[i]);
- erts_usage();
- }
- break;
- }
- default:
- erts_fprintf(stderr, "%s unknown flag %s\n", argv[0], argv[i]);
- erts_usage();
- }
- i++;
- }
- #ifdef USE_THREADS
- erts_async_max_threads = async_max_threads;
- #endif
- /* Delayed check of +P flag */
- if (erts_max_processes < ERTS_MIN_PROCESSES
- || erts_max_processes > ERTS_MAX_PROCESSES
- || (erts_use_r9_pids_ports
- && erts_max_processes > ERTS_MAX_R9_PROCESSES)) {
- erts_fprintf(stderr, "bad number of processes %s\n", Parg);
- erts_usage();
- }
- /* Restart will not reinstall the break handler */
- #ifdef __WIN32__
- if (ignore_break)
- erts_set_ignore_break();
- else if (replace_intr)
- erts_replace_intr();
- else
- init_break_handler();
- #else
- if (ignore_break)
- erts_set_ignore_break();
- else if (have_break_handler)
- init_break_handler();
- if (replace_intr)
- erts_replace_intr();
- #endif
- boot_argc = argc - i; /* Number of arguments to init */
- boot_argv = &argv[i];
- erl_init(ncpu);
- init_shared_memory(boot_argc, boot_argv);
- load_preloaded();
- erts_initialized = 1;
- erl_first_process_otp("otp_ring0", NULL, 0, boot_argc, boot_argv);
- #ifdef ERTS_SMP
- erts_start_schedulers();
- /* Let system specific code decide what to do with the main thread... */
- erts_sys_main_thread(); /* May or may not return! */
- #else
- erts_thr_set_main_status(1, 1);
- set_main_stack_size();
- process_main();
- #endif
- }
- #ifdef USE_THREADS
- __decl_noreturn void erts_thr_fatal_error(int err, char *what)
- {
- char *errstr = err ? strerror(err) : NULL;
- erts_fprintf(stderr,
- "Failed to %s: %s%s(%d)\n",
- what,
- errstr ? errstr : "",
- errstr ? " " : "",
- err);
- abort();
- }
- #endif
- static void
- system_cleanup(int exit_code)
- {
- /* No cleanup wanted if ...
- * 1. we are about to do an abnormal exit
- * 2. we haven't finished initializing, or
- * 3. another thread than the main thread is performing the exit
- * (in threaded non smp case).
- */
- if (exit_code != 0
- || !erts_initialized
- #if defined(USE_THREADS) && !defined(ERTS_SMP)
- || !erts_equal_tids(main_thread, erts_thr_self())
- #endif
- )
- return;
- #ifdef ERTS_SMP
- #ifdef ERTS_ENABLE_LOCK_CHECK
- erts_lc_check_exact(NULL, 0);
- #endif
- erts_smp_block_system(ERTS_BS_FLG_ALLOW_GC); /* We never release it... */
- #endif
- #ifdef HYBRID
- if (ma_src_stack) erts_free(ERTS_ALC_T_OBJECT_STACK,
- (void *)ma_src_stack);
- if (ma_dst_stack) erts_free(ERTS_ALC_T_OBJECT_STACK,
- (void *)ma_dst_stack);
- if (ma_offset_stack) erts_free(ERTS_ALC_T_OBJECT_STACK,
- (void *)ma_offset_stack);
- ma_src_stack = NULL;
- ma_dst_stack = NULL;
- ma_offset_stack = NULL;
- erts_cleanup_offheap(&erts_global_offheap);
- #endif
- #if defined(HYBRID) && !defined(INCREMENTAL)
- if (global_heap) {
- ERTS_HEAP_FREE(ERTS_ALC_T_HEAP,
- (void*) global_heap,
- sizeof(Eterm) * global_heap_sz);
- }
- global_heap = NULL;
- #endif
- #ifdef INCREMENTAL
- erts_cleanup_incgc();
- #endif
- #if defined(USE_THREADS)
- exit_async();
- #endif
- #if HAVE_ERTS_MSEG
- erts_mseg_exit();
- #endif
- /*
- * A lot more cleaning could/should have been done...
- */
- }
- /*
- * Common exit function, all exits from the system go through here.
- * n <= 0 -> normal exit with status n;
- * n = 127 -> Erlang crash dump produced, exit with status 1;
- * other positive n -> Erlang crash dump and core dump produced.
- */
- __decl_noreturn void erl_exit0(char *file, int line, int n, char *fmt,...)
- {
- unsigned int an;
- va_list args;
- va_start(args, fmt);
- save_statistics();
- system_cleanup(n);
- an = abs(n);
- if (erts_mtrace_enabled)
- erts_mtrace_exit((Uint32) an);
- /* Produce an Erlang core dump if error */
- if (n > 0 && erts_initialized &&
- (erts_no_crash_dump == 0 || n == ERTS_DUMP_EXIT)) {
- erl_crash_dump_v(file, line, fmt, args);
- }
- /* need to reinitialize va_args thing */
- va_end(args);
- va_start(args, fmt);
- if (fmt != NULL && *fmt != '\0')
- erl_error(fmt, args); /* Print error message. */
- va_end(args);
- sys_tty_reset(n);
- if (n == ERTS_INTR_EXIT)
- exit(0);
- else if (n == 127)
- ERTS_EXIT_AFTER_DUMP(1);
- else if (n > 0 || n == ERTS_ABORT_EXIT)
- abort();
- exit(an);
- }
- __decl_noreturn void erl_exit(int n, char *fmt,...)
- {
- unsigned int an;
- va_list args;
- va_start(args, fmt);
- save_statistics();
- system_cleanup(n);
- an = abs(n);
- if (erts_mtrace_enabled)
- erts_mtrace_exit((Uint32) an);
- /* Produce an Erlang core dump if error */
- if (n > 0 && erts_initialized &&
- (erts_no_crash_dump == 0 || n == ERTS_DUMP_EXIT)) {
- erl_crash_dump_v((char*) NULL, 0, fmt, args);
- }
- /* need to reinitialize va_args thing */
- va_end(args);
- va_start(args, fmt);
- if (fmt != NULL && *fmt != '\0')
- erl_error(fmt, args); /* Print error message. */
- va_end(args);
- sys_tty_reset(n);
- if (n == ERTS_INTR_EXIT)
- exit(0);
- else if (n == ERTS_DUMP_EXIT)
- ERTS_EXIT_AFTER_DUMP(1);
- else if (n > 0 || n == ERTS_ABORT_EXIT)
- abort();
- exit(an);
- }