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| author | Christopher Faylor <me@cgf.cx> | 2001-01-12 05:38:25 +0000 |
|---|---|---|
| committer | Christopher Faylor <me@cgf.cx> | 2001-01-12 05:38:25 +0000 |
| commit | c3d62298ba6caadf2babd191951305ca2e389596 (patch) | |
| tree | d4e0f386f548655e8efd8271615e15b70161245e /winsup/cygwin/exceptions.cc | |
| parent | e45ab89012ee7415606dcd7c664cd5c4c14e5baf (diff) | |
| download | cygnal-c3d62298ba6caadf2babd191951305ca2e389596.tar.gz cygnal-c3d62298ba6caadf2babd191951305ca2e389596.tar.bz2 cygnal-c3d62298ba6caadf2babd191951305ca2e389596.zip | |
* debug.h: Add regparm attributes to some functions.
* signal.cc (sigaction): Don't treat SIGCONT specially.
* exceptions.cc (interrupt_setup): Save sa_flags of interrupted signal for
later use.
(sig_handler): Default any stopping signal to SIGSTOP.
(call_signal_handler): New function.
(sigdelayed0): New function.
* sigproc.cc (sigproc_init): Initialize SIGSTOP sigaction for special behavior.
* sigproc.h: Define call_signal_handler.
* syscalls.cc (_read): Allow restartable signal behavior.
Diffstat (limited to 'winsup/cygwin/exceptions.cc')
| -rw-r--r-- | winsup/cygwin/exceptions.cc | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/winsup/cygwin/exceptions.cc b/winsup/cygwin/exceptions.cc index c053cd938..fd7de95fb 100644 --- a/winsup/cygwin/exceptions.cc +++ b/winsup/cygwin/exceptions.cc @@ -31,6 +31,7 @@ extern "C" { static int handle_exceptions (EXCEPTION_RECORD *, void *, CONTEXT *, void *); extern void sigreturn (); extern void sigdelayed (); +extern void sigdelayed0 (); extern void siglast (); extern DWORD __no_sig_start, __no_sig_end; }; @@ -634,6 +635,7 @@ interrupt_setup (int sig, void *handler, DWORD retaddr, DWORD *retaddr_on_stack, sigsave.oldmask = myself->getsigmask (); // Remember for restoration /* FIXME: Not multi-thread aware */ sigsave.newmask = myself->getsigmask () | siga.sa_mask | SIGTOMASK (sig); + sigsave.sa_flags = siga.sa_flags; sigsave.func = (void (*)(int)) handler; sigsave.sig = sig; sigsave.saved_errno = -1; // Flag: no errno to save @@ -987,6 +989,7 @@ sig_handle (int sig) stop: handler = (void *) sig_handle_tty_stop; + thissig = myself->getsig (SIGSTOP); dosig: /* Dispatch to the appropriate function. */ @@ -1091,6 +1094,16 @@ reset_signal_arrived () sigproc_printf ("reset signal_arrived"); } +int __stdcall +call_signal_handler () +{ + int sa_flags = sigsave.sa_flags; + sigproc_printf ("sa_flags %p", sa_flags); + *sigsave.retaddr_on_stack = sigsave.retaddr; + sigdelayed0 (); + return sa_flags & SA_RESTART; +} + void unused_sig_wrapper () { /* Signal cleanup stuff. Cleans up stack (too bad that we didn't @@ -1123,6 +1136,7 @@ _sigreturn: __no_sig_start: _sigdelayed: pushl %2 # original return address +_sigdelayed0: pushl %%ebp movl %%esp,%%ebp pushf |