version 1.20, 2003/01/07 09:31:20
|
version 1.26, 2003/03/08 19:52:05
|
Line 72 void install_signal_handler(int sig, voi
|
Line 72 void install_signal_handler(int sig, voi
|
} |
} |
#endif |
#endif |
|
|
typedef void Sigfunc(int); |
|
|
|
Sigfunc *bsd_signal(int signo, Sigfunc *func) |
Sigfunc *bsd_signal(int signo, Sigfunc *func) |
{ |
{ |
struct sigaction act, oact; |
struct sigaction act, oact; |
Line 109 signal_throw(int sig)
|
Line 107 signal_throw(int sig)
|
case SIGBUS: code=-23; break; |
case SIGBUS: code=-23; break; |
#endif |
#endif |
case SIGSEGV: code=-9; break; |
case SIGSEGV: code=-9; break; |
|
#ifdef SIGPIPE |
|
case SIGPIPE: code=-2049; break; |
|
#endif |
default: code=-256-sig; break; |
default: code=-256-sig; break; |
} |
} |
|
#ifdef __CYGWIN__ |
|
/* the SA_NODEFER apparently does not work on Cygwin 1.3.18(0.69/3/2) */ |
|
{ |
|
sigset_t emptyset; |
|
sigemptyset(&emptyset); |
|
sigprocmask(SIG_SETMASK, &emptyset, NULL); |
|
} |
|
#endif |
longjmp(throw_jmp_buf,code); /* !! or use siglongjmp ? */ |
longjmp(throw_jmp_buf,code); /* !! or use siglongjmp ? */ |
} |
} |
|
|
#ifdef SA_SIGINFO |
#ifdef SA_SIGINFO |
|
static void |
|
sigaction_throw(int sig, siginfo_t *info, void *_) |
|
{ |
|
signal_throw(sig); |
|
} |
|
|
static void fpe_handler(int sig, siginfo_t *info, void *_) |
static void fpe_handler(int sig, siginfo_t *info, void *_) |
/* handler for SIGFPE */ |
/* handler for SIGFPE */ |
{ |
{ |
Line 374 void install_signal_handlers(void)
|
Line 389 void install_signal_handlers(void)
|
int sas_retval=-1; |
int sas_retval=-1; |
|
|
sigstack.ss_size=SIGSTKSZ; |
sigstack.ss_size=SIGSTKSZ; |
if ((sigstack.ss_sp = my_alloc(sigstack.ss_size)) != NULL) { |
/* Actually the stack should only be ss_size large, and according to |
|
SUSv2 ss_sp should point to the start of the stack, but |
|
unfortunately Irix 6.5 (at least) expects ss_sp to point to the |
|
end, so we work around this issue by accomodating everyone. */ |
|
if ((sigstack.ss_sp = my_alloc(sigstack.ss_size*2)) != NULL) { |
|
sigstack.ss_sp += sigstack.ss_size; |
sigstack.ss_flags=0; |
sigstack.ss_flags=0; |
sas_retval=sigaltstack(&sigstack,(stack_t *)0); |
sas_retval=sigaltstack(&sigstack,(stack_t *)0); |
} |
} |
Line 393 void install_signal_handlers(void)
|
Line 413 void install_signal_handlers(void)
|
bsd_signal(sigs_to_quit [i], graceful_exit); |
bsd_signal(sigs_to_quit [i], graceful_exit); |
#ifdef SA_SIGINFO |
#ifdef SA_SIGINFO |
if (!die_on_signal) { |
if (!die_on_signal) { |
|
#ifdef SIGFPE |
install_signal_handler(SIGFPE, fpe_handler); |
install_signal_handler(SIGFPE, fpe_handler); |
|
#endif |
|
#ifdef SIGSEGV |
install_signal_handler(SIGSEGV, segv_handler); |
install_signal_handler(SIGSEGV, segv_handler); |
} |
|
#endif |
#endif |
|
/* use SA_ONSTACK for all signals that could come from executing |
|
wrong code */ |
|
#ifdef SIGILL |
|
install_signal_handler(SIGILL, sigaction_throw); |
|
#endif |
|
#ifdef SIGBUS |
|
install_signal_handler(SIGBUS, sigaction_throw); |
|
#endif |
|
#ifdef SIGTRAP |
|
install_signal_handler(SIGTRAP, sigaction_throw); |
|
#endif |
|
} |
|
#endif /* defined(SA_SIGINFO) */ |
#ifdef SIGCONT |
#ifdef SIGCONT |
bsd_signal(SIGCONT, termprep); |
bsd_signal(SIGCONT, termprep); |
#endif |
#endif |