24 #if !defined(_WIN32) && !defined(HAVE_GCC_ATOMIC_BUILTINS)
34 #if defined(__BEOS__) || defined(__HAIKU__)
38 #ifdef HAVE_PTHREAD_SIGMASK
39 #define USE_TRAP_MASK 1
41 #define USE_TRAP_MASK 0
45 # define NSIG (_SIGMAX + 1)
137 {
"VTALRM", SIGVTALRM},
164 {
"DANGER", SIGDANGER},
167 {
"MIGRATE", SIGMIGRATE},
176 {
"RETRACT", SIGRETRACT},
193 if (strcmp(sigs->
signm, nm) == 0)
204 if (sigs->
signo == no)
234 if (!
NIL_P(sig)) argnum = 2;
237 if (argc < 1 || argnum < argc) {
243 if (signo < 0 || signo >
NSIG) {
261 if (strncmp(signm,
"SIG", 3) == 0) signm += 3;
343 #define killpg(pg, sig) kill(-(pg), (sig))
354 switch (
TYPE(argv[0])) {
371 if (strncmp(
"SIG", s, 3) == 0)
393 for (i=1; i<
argc; i++) {
399 for (i=1; i<
argc; i++) {
414 #define sighandler_t sh_t
418 #ifdef USE_SIGALTSTACK
420 #define SIGINFO_ARG , siginfo_t *info, void *ctx
428 #ifdef USE_SIGALTSTACK
433 stack_t newSS, oldSS;
436 rb_bug(
"rb_register_sigaltstack: th->altstack not initialized\n");
438 newSS.ss_sp = th->altstack;
442 sigaltstack(&newSS, &oldSS);
449 struct sigaction sigact, old;
452 rb_trap_accept_nativethreads[signum] = 0;
455 sigemptyset(&sigact.sa_mask);
456 #ifdef USE_SIGALTSTACK
458 sigact.sa_flags = SA_SIGINFO;
460 sigact.sa_handler = handler;
465 if (signum == SIGCHLD && handler == SIG_IGN)
466 sigact.sa_flags |= SA_NOCLDWAIT;
468 #if defined(SA_ONSTACK) && defined(USE_SIGALTSTACK)
469 if (signum == SIGSEGV || signum == SIGBUS)
470 sigact.sa_flags |= SA_ONSTACK;
472 if (sigaction(signum, &sigact, &old) < 0) {
477 return old.sa_handler;
487 #define ruby_signal(sig,handler) ( signal((sig),(handler)))
490 ruby_nativethread_signal(
int signum,
sighandler_t handler)
494 old =
signal(signum, handler);
495 rb_trap_accept_nativethreads[signum] = 1;
507 #if !defined(BSD_SIGNAL) && !defined(POSIX_SIGNAL)
519 static sigset_t trap_last_mask;
532 sigdelset(&mask, SIGVTALRM);
533 sigdelset(&mask, SIGSEGV);
571 #ifdef USE_SIGALTSTACK
573 check_stack_overflow(
const void *addr)
575 int ruby_stack_overflowed_p(
const rb_thread_t *,
const void *);
578 if (ruby_stack_overflowed_p(th, addr)) {
582 #define CHECK_STACK_OVERFLOW() check_stack_overflow(info->si_addr)
584 #define CHECK_STACK_OVERFLOW() (void)0
596 #if defined __APPLE__
604 static void ruby_abort(
void)
617 static int segv_received = 0;
624 char msg[] =
"SEGV received in SEGV handler\n";
625 write(2, msg,
sizeof(msg));
632 ruby_disable_gc_stress = 1;
633 rb_bug(
"Segmentation fault");
741 # ifdef USE_SIGALTSTACK
774 if (!
NIL_P(command)) {
782 if (strncmp(
RSTRING_PTR(command),
"SYSTEM_DEFAULT", 14) == 0) {
788 if (strncmp(
RSTRING_PTR(command),
"SIG_IGN", 7) == 0) {
793 else if (strncmp(
RSTRING_PTR(command),
"SIG_DFL", 7) == 0) {
798 else if (strncmp(
RSTRING_PTR(command),
"DEFAULT", 7) == 0) {
803 if (strncmp(
RSTRING_PTR(command),
"IGNORE", 6) == 0) {
808 if (strncmp(
RSTRING_PTR(command),
"EXIT", 4) == 0) {
829 switch (
TYPE(vsig)) {
832 if (sig < 0 || sig >=
NSIG) {
846 if (strncmp(
"SIG", s, 3) == 0)
849 if (sig == 0 && strcmp(s,
"EXIT") != 0)
867 if (oldfunc == SIG_IGN) oldcmd =
rb_str_new2(
"IGNORE");
880 sigdelset(&arg->mask, sig);
891 trap_last_mask = arg->mask;
941 if (argc < 1 || argc > 2) {
963 sigfillset(&fullmask);
1000 if (old != SIG_DFL) {
1005 #if defined(SIGCLD) || defined(SIGCHLD)
1007 init_sigchld(
int sig)
1015 sigfillset(&fullmask);
1020 if (oldfunc != SIG_DFL && oldfunc != SIG_IGN) {
1023 GET_VM()->trap_list[sig].cmd = 0;
1027 sigdelset(&mask, sig);
1029 trap_last_mask = mask;
1047 #ifndef RUBY_DEBUG_ENV
1048 #define ruby_enable_coredump 0
1122 if (!ruby_enable_coredump) {
1127 # ifdef USE_SIGALTSTACK
1138 init_sigchld(SIGCLD);
1139 #elif defined(SIGCHLD)
1140 init_sigchld(SIGCHLD);
#define RSTRING_LEN(string)
static VALUE sig_list(void)
static void signal_exec(VALUE cmd, int safe, int sig)
const char * ruby_signal_name(int no)
void ruby_thread_stack_overflow(rb_thread_t *th)
void rb_bug(const char *fmt,...)
rb_atomic_t ruby_atomic_exchange(rb_atomic_t *ptr, rb_atomic_t val)
#define GetProcPtr(obj, ptr)
static VALUE interrupt_init(int argc, VALUE *argv, VALUE self)
void ruby_sig_finalize(void)
void rb_threadptr_signal_raise(rb_thread_t *th, int sig)
RETSIGTYPE ruby_sigaction_t(int)
void rb_signal_exec(rb_thread_t *th, int sig)
#define ruby_enable_coredump
static VALUE INT2NUM(int v)
#define RSTRING_PTR(string)
void rb_raise(VALUE exc, const char *fmt,...)
VALUE rb_ary_new3(long n,...)
void ruby_default_signal(int sig)
static VALUE esignal_signo(VALUE self)
void rb_define_global_function(const char *name, VALUE(*func)(ANYARGS), int argc)
Defines a global function.
VALUE rb_check_to_integer(VALUE, const char *)
static sighandler_t trap_handler(VALUE *cmd, int sig)
const char * rb_obj_classname(VALUE)
struct rb_vm_struct::@75 trap_list[RUBY_NSIG]
sighandler_t posix_signal(int signum, sighandler_t handler)
RETSIGTYPE(* sighandler_t)(int)
int ruby_disable_gc_stress
void rb_thread_wakeup_timer_thread(void)
VALUE rb_hash_aset(VALUE hash, VALUE key, VALUE val)
static RETSIGTYPE sighandler(int sig)
VALUE rb_iv_get(VALUE, const char *)
int pthread_sigmask(int how, const sigset_t *set, sigset_t *oset)
static void install_sighandler(int signum, sighandler_t handler)
static const struct signals siglist[]
rb_atomic_t cnt[RUBY_NSIG]
static sighandler_t default_handler(int sig)
void rb_disable_interrupt(void)
static VALUE sig_trap(int argc, VALUE *argv)
static int signm2signo(const char *nm)
void rb_define_module_function(VALUE module, const char *name, VALUE(*func)(ANYARGS), int argc)
Defines a module function for module.
SSL_METHOD *(* func)(void)
VALUE rb_sprintf(const char *format,...)
VALUE rb_iv_set(VALUE, const char *, VALUE)
int rb_scan_args(int argc, const VALUE *argv, const char *fmt,...)
static const char * signo2signm(int no)
void rb_bug_errno(const char *mesg, int errno_arg)
void rb_alias(VALUE, ID, ID)
VALUE rb_call_super(int, const VALUE *)
VALUE rb_ensure(VALUE(*b_proc)(ANYARGS), VALUE data1, VALUE(*e_proc)(ANYARGS), VALUE data2)
void rb_sys_fail(const char *mesg)
void rb_enable_interrupt(void)
int rb_get_next_signal(void)
VALUE rb_f_kill(int argc, VALUE *argv)
#define CHECK_STACK_OVERFLOW()
sighandler_t signal(int signum, sighandler_t handler)
VALUE rb_block_proc(void)
VALUE rb_check_string_type(VALUE)
int rb_signal_buff_size(void)
static VALUE esignal_init(int argc, VALUE *argv, VALUE self)
VALUE rb_eval_cmd(VALUE, VALUE, int)
#define SafeStringValue(v)
static struct @67 signal_buff
static int trap_signm(VALUE vsig)
const char * rb_id2name(ID id)
#define StringValuePtr(v)
#define ruby_signal(sig, handler)
VALUE rb_define_module(const char *name)
void rb_trap_restore_mask(void)
void rb_thread_polling(void)
void rb_define_method(VALUE klass, const char *name, VALUE(*func)(ANYARGS), int argc)
VALUE rb_str_new2(const char *)
void rb_threadptr_signal_exit(rb_thread_t *th)
static VALUE trap(struct trap_arg *arg)