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* winsup.h (child_copy): Change prototype to match new functionality.

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* cygheap.cc (cygheap_fixup_in_child): Accommodate new child_copy arguments.
* dcrt0.cc (dll_data_start): Move definition here from fork.
(dll_data_end): Ditto.
(dll_bss_start): Ditto.
(dll_bss_end): Ditto.
(handle_fork): New function.  Called when forked to deal with fork issues and
copy data to this process from the parent.
(dll_crt0_0): Call handle_fork when _PROC_FORK condition.
(dll_crt0): Don't copy user_data when we've forked.  Don't zero first element
of main_environment ever.
(cygwin_dll_init): Ditto.
* fork.cc (child_copy): Rename from fork_copy and change arguments so that each
pair of things to copy gets its own descriptor.
(frok::child): Remove fixup_mmaps_after_fork call here.  Move to handle_fork in
dcrt0.cc.
(frok::parent): Use child_copy rather than fork_copy and accommodate changes in
parameters.
* exceptions.cc (setup_handler): Delay test of whether we're locked until after
GetThreadContext has been called since there are apparently cases where
SuspendThread does not cause an immediate thread suspension.
This commit is contained in:
Christopher Faylor
2005-12-17 04:36:39 +00:00
parent a249fd1c9b
commit ad02bb70e3
6 changed files with 134 additions and 105 deletions
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17
winsup/cygwin/exceptions.cc
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@ -786,17 +786,12 @@ setup_handler (int sig, void *handler, struct sigaction& siga, _cygtls *tls)
ResumeThread (hth);
break;
}
if (tls->incyg || tls->spinning || tls->locked ())
sigproc_printf ("incyg %d, spinning %d, locked %d\n",
tls->incyg, tls->spinning, tls->locked ());
else
{
cx.ContextFlags = CONTEXT_CONTROL | CONTEXT_INTEGER;
if (!GetThreadContext (hth, &cx))
system_printf ("couldn't get context of main thread, %E");
else if (interruptible (cx.Eip))
interrupted = tls->interrupt_now (&cx, sig, handler, siga);
}
cx.ContextFlags = CONTEXT_CONTROL | CONTEXT_INTEGER;
if (!GetThreadContext (hth, &cx))
system_printf ("couldn't get context of main thread, %E");
else if (interruptible (cx.Eip) &&
!(tls->incyg || tls->spinning || tls->locked ()))
interrupted = tls->interrupt_now (&cx, sig, handler, siga);
res = ResumeThread (hth);
if (interrupted)