void unix_init_signals(void)
{
struct sigaction memory_sigaction;
struct sigaction misc_sigaction;
struct sigaction ignore_sigaction;
memset(&memory_sigaction,0,sizeof(struct sigaction));
sigemptyset(&memory_sigaction.sa_mask);
memory_sigaction.sa_sigaction = memory_signal_handler;
memory_sigaction.sa_flags = SA_SIGINFO;
sigaction_safe(SIGBUS,&memory_sigaction,NULL);
sigaction_safe(SIGSEGV,&memory_sigaction,NULL);
memset(&misc_sigaction,0,sizeof(struct sigaction));
sigemptyset(&misc_sigaction.sa_mask);
misc_sigaction.sa_sigaction = misc_signal_handler;
misc_sigaction.sa_flags = SA_SIGINFO;
sigaction_safe(SIGABRT,&misc_sigaction,NULL);
sigaction_safe(SIGFPE,&misc_sigaction,NULL);
sigaction_safe(SIGQUIT,&misc_sigaction,NULL);
sigaction_safe(SIGILL,&misc_sigaction,NULL);
memset(&ignore_sigaction,0,sizeof(struct sigaction));
sigemptyset(&ignore_sigaction.sa_mask);
ignore_sigaction.sa_handler = SIG_IGN;
sigaction_safe(SIGPIPE,&ignore_sigaction,NULL);
}
void factor_vm::unix_init_signals()
{
/* OpenBSD doesn't support sigaltstack() if we link against
libpthread. See http://redmine.ruby-lang.org/issues/show/1239 */
#ifndef __OpenBSD__
signal_callstack_seg = new segment(callstack_size,false);
stack_t signal_callstack;
signal_callstack.ss_sp = (char *)signal_callstack_seg->start;
signal_callstack.ss_size = signal_callstack_seg->size;
signal_callstack.ss_flags = 0;
if(sigaltstack(&signal_callstack,(stack_t *)NULL) < 0)
fatal_error("sigaltstack() failed",0);
#endif
struct sigaction memory_sigaction;
struct sigaction misc_sigaction;
struct sigaction fpe_sigaction;
struct sigaction ignore_sigaction;
memset(&memory_sigaction,0,sizeof(struct sigaction));
sigemptyset(&memory_sigaction.sa_mask);
memory_sigaction.sa_sigaction = memory_signal_handler;
memory_sigaction.sa_flags = SA_SIGINFO | SA_ONSTACK;
sigaction_safe(SIGBUS,&memory_sigaction,NULL);
sigaction_safe(SIGSEGV,&memory_sigaction,NULL);
memset(&fpe_sigaction,0,sizeof(struct sigaction));
sigemptyset(&fpe_sigaction.sa_mask);
fpe_sigaction.sa_sigaction = fpe_signal_handler;
fpe_sigaction.sa_flags = SA_SIGINFO | SA_ONSTACK;
sigaction_safe(SIGFPE,&fpe_sigaction,NULL);
memset(&misc_sigaction,0,sizeof(struct sigaction));
sigemptyset(&misc_sigaction.sa_mask);
misc_sigaction.sa_sigaction = misc_signal_handler;
misc_sigaction.sa_flags = SA_SIGINFO | SA_ONSTACK;
sigaction_safe(SIGQUIT,&misc_sigaction,NULL);
sigaction_safe(SIGILL,&misc_sigaction,NULL);
/* We don't use SA_IGN here because then the ignore action is inherited
by subprocesses, which we don't want. There is a unit test in
io.launcher.unix for this. */
memset(&ignore_sigaction,0,sizeof(struct sigaction));
sigemptyset(&ignore_sigaction.sa_mask);
ignore_sigaction.sa_sigaction = ignore_signal_handler;
ignore_sigaction.sa_flags = SA_SIGINFO | SA_ONSTACK;
sigaction_safe(SIGPIPE,&ignore_sigaction,NULL);
}
void factor_vm::handle_ctrl_c() {
struct sigaction fep_sigaction;
init_sigaction_with_handler(&fep_sigaction, fep_signal_handler);
sigaction_safe(SIGINT, &fep_sigaction, NULL);
}
void factor_vm::unix_init_signals() {
init_signal_pipe(this);
signal_callstack_seg = new segment(callstack_size, false);
stack_t signal_callstack;
signal_callstack.ss_sp = (char*)signal_callstack_seg->start;
signal_callstack.ss_size = signal_callstack_seg->size;
signal_callstack.ss_flags = 0;
if (sigaltstack(&signal_callstack, (stack_t*)NULL) < 0)
fatal_error("sigaltstack() failed", 0);
{
struct sigaction memory_sigaction;
init_sigaction_with_handler(&memory_sigaction, memory_signal_handler);
sigaction_safe(SIGBUS, &memory_sigaction, NULL);
sigaction_safe(SIGSEGV, &memory_sigaction, NULL);
sigaction_safe(SIGTRAP, &memory_sigaction, NULL);
}
{
struct sigaction fpe_sigaction;
init_sigaction_with_handler(&fpe_sigaction, fpe_signal_handler);
sigaction_safe(SIGFPE, &fpe_sigaction, NULL);
}
{
struct sigaction synchronous_sigaction;
init_sigaction_with_handler(&synchronous_sigaction,
synchronous_signal_handler);
sigaction_safe(SIGILL, &synchronous_sigaction, NULL);
sigaction_safe(SIGABRT, &synchronous_sigaction, NULL);
}
{
struct sigaction enqueue_sigaction;
init_sigaction_with_handler(&enqueue_sigaction, enqueue_signal_handler);
sigaction_safe(SIGWINCH, &enqueue_sigaction, NULL);
sigaction_safe(SIGUSR1, &enqueue_sigaction, NULL);
sigaction_safe(SIGCONT, &enqueue_sigaction, NULL);
sigaction_safe(SIGURG, &enqueue_sigaction, NULL);
sigaction_safe(SIGIO, &enqueue_sigaction, NULL);
sigaction_safe(SIGPROF, &enqueue_sigaction, NULL);
sigaction_safe(SIGVTALRM, &enqueue_sigaction, NULL);
#ifdef SIGINFO
sigaction_safe(SIGINFO, &enqueue_sigaction, NULL);
#endif
}
handle_ctrl_c();
{
struct sigaction sample_sigaction;
init_sigaction_with_handler(&sample_sigaction, sample_signal_handler);
sigaction_safe(SIGALRM, &sample_sigaction, NULL);
}
/* We don't use SA_IGN here because then the ignore action is inherited
by subprocesses, which we don't want. There is a unit test in
io.launcher.unix for this. */
{
struct sigaction ignore_sigaction;
init_sigaction_with_handler(&ignore_sigaction, ignore_signal_handler);
sigaction_safe(SIGPIPE, &ignore_sigaction, NULL);
/* We send SIGUSR2 to the stdin_loop thread to interrupt it on FEP */
sigaction_safe(SIGUSR2, &ignore_sigaction, NULL);
}
}
