JehanneOS/newlib
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

* debug.h: Add regparm attributes to some functions.

Browse Source 
* 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.
This commit is contained in:
Christopher Faylor
2001-01-12 05:38:25 +00:00
parent e45ab89012
commit c3d62298ba
8 changed files with 43 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
winsup/cygwin/exceptions.cc
View File

@ -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