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* exceptions.cc (stackdump): Make global.

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(signal_exit): Move to sigproc.cc.
* sigproc.cc (signal_exit): Move here.  Declare stackdump extern.  Set
my_sendsig to indicate that signals are no longer available.
(my_readsig): Make Static again.
(sig_send): Interpret ERROR_BROKEN_PIPE as ESRCH.  Remove special-case EACCESS
errno setting, just setting errno generally, even for "its_me" case.
This commit is contained in:
Christopher Faylor
2011-11-26 19:14:22 +00:00
parent 1d04c4c6c3
commit 4ab568c60c
3 changed files with 63 additions and 47 deletions
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44
winsup/cygwin/exceptions.cc
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@ -279,7 +279,7 @@ stack_info::walk ()
return 1;
}
static void
void
stackdump (DWORD ebp, int open_file, bool isexception)
{
static bool already_dumped;
@ -1310,48 +1310,6 @@ exit_sig:
use_tls->signal_exit (si.si_signo); /* never returns */
}
/* Cover function to `do_exit' to handle exiting even in presence of more
exceptions. We used to call exit, but a SIGSEGV shouldn't cause atexit
routines to run. */
void
_cygtls::signal_exit (int rc)
{
extern HANDLE my_readsig;
ForceCloseHandle (my_readsig); /* Disallow further signal sends */
SetEvent (signal_arrived); /* Avoid potential deadlock with proc_lock */
if (rc == SIGQUIT || rc == SIGABRT)
{
CONTEXT c;
c.ContextFlags = CONTEXT_FULL;
GetThreadContext (hMainThread, &c);
copy_context (&c);
if (cygheap->rlim_core > 0UL)
rc |= 0x80;
}
if (have_execed)
{
sigproc_printf ("terminating captive process");
TerminateProcess (ch_spawn, sigExeced = rc);
}
signal_debugger (rc & 0x7f);
if ((rc & 0x80) && !try_to_debug ())
stackdump (thread_context.ebp, 1, 1);
lock_process until_exit (true);
if (have_execed || exit_state > ES_PROCESS_LOCKED)
myself.exit (rc);
/* Starve other threads in a vain attempt to stop them from doing something
stupid. */
SetThreadPriority (GetCurrentThread (), THREAD_PRIORITY_TIME_CRITICAL);
sigproc_printf ("about to call do_exit (%x)", rc);
do_exit (rc);
}
void
events_init ()
{