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* exceptions.cc (_cygtls::interrupt_now): Avoid nonsensical tests which delay 

an interrupt.
(setup_handler): Remove unneeded DEBUGGING handling.  Ensure that stack is
locked when we are about to do push/pop to it.  Fix debugging output.
This commit is contained in:
Christopher Faylor 2010-07-18 20:13:26 +00:00
parent 3a7c5515b2
commit 9134e80ac6
2 changed files with 11 additions and 11 deletions
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7
winsup/cygwin/ChangeLog
View File

@ -1,3 +1,10 @@
2010-07-18 Christopher Faylor <me+cygwin@cgf.cx>
* exceptions.cc (_cygtls::interrupt_now): Avoid nonsensical tests which
delay an interrupt.
(setup_handler): Remove unneeded DEBUGGING handling. Ensure that stack
is locked when we are about to do push/pop to it. Fix debugging output.
2010-07-18 Christopher Faylor <me+cygwin@cgf.cx>
* gendef: Throughout, remove lock from xchgl since it is implied.

15
winsup/cygwin/exceptions.cc
View File

@ -778,7 +778,7 @@ _cygtls::interrupt_now (CONTEXT *cx, int sig, void *handler,
{
bool interrupted;
if (incyg || spinning || locked () || inside_kernel (cx))
if (incyg || inside_kernel (cx))
interrupted = false;
else
{
@ -861,7 +861,6 @@ setup_handler (int sig, void *handler, struct sigaction& siga, _cygtls *tls)
break;
}
tls->unlock ();
DWORD res;
HANDLE hth = (HANDLE) *tls;
@ -874,14 +873,7 @@ setup_handler (int sig, void *handler, struct sigaction& siga, _cygtls *tls)
If the thread is already suspended (which can occur when a program has called
SuspendThread on itself) then just queue the signal. */
#ifndef DEBUGGING
sigproc_printf ("suspending mainthread");
#else
cx.ContextFlags = CONTEXT_CONTROL | CONTEXT_INTEGER;
if (!GetThreadContext (hth, &cx))
memset (&cx, 0, sizeof cx);
sigproc_printf ("suspending mainthread PC %p", cx.Eip);
#endif
sigproc_printf ("suspending thread");
res = SuspendThread (hth);
/* Just set pending if thread is already suspended */
if (res)
@ -891,10 +883,11 @@ setup_handler (int sig, void *handler, struct sigaction& siga, _cygtls *tls)
}
cx.ContextFlags = CONTEXT_CONTROL | CONTEXT_INTEGER;
if (!GetThreadContext (hth, &cx))
system_printf ("couldn't get context of main thread, %E");
system_printf ("couldn't get context of thread, %E");
else
interrupted = tls->interrupt_now (&cx, sig, handler, siga);
tls->unlock ();
res = ResumeThread (hth);
if (interrupted)
break;