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* cygthread.cc (cygthread::stub): Initialize stack pointer earlier. 

(cygthread::simplestub): Initialize stack pointer.
(cygthread::terminate_thread): Account for possibility that stack pointer has
not been set.  Issue warnings for unusual conditions.
This commit is contained in:
Christopher Faylor 2003-04-11 02:16:17 +00:00
parent 518a04c40b
commit 73afb2abb0
2 changed files with 17 additions and 3 deletions
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7
winsup/cygwin/ChangeLog
View File

@ -1,3 +1,10 @@
2003-04-10 Christopher Faylor <cgf@redhat.com>
* cygthread.cc (cygthread::stub): Initialize stack pointer earlier.
(cygthread::simplestub): Initialize stack pointer.
(cygthread::terminate_thread): Account for possibility that stack
pointer has not been set. Issue warnings for unusual conditions.
2003-04-10 Corinna Vinschen <corinna@vinschen.de> 2003-04-10 Corinna Vinschen <corinna@vinschen.de>
* regex/regex.h: Define regoff_t as _off_t. * regex/regex.h: Define regoff_t as _off_t.

13
winsup/cygwin/cygthread.cc
View File

@ -50,12 +50,12 @@ cygthread::stub (VOID *arg)
} }
else else
{ {
info->stack_ptr = &arg;
if (!info->ev) if (!info->ev)
{ {
info->ev = CreateEvent (&sec_none_nih, TRUE, FALSE, NULL); info->ev = CreateEvent (&sec_none_nih, TRUE, FALSE, NULL);
info->thread_sync = CreateEvent (&sec_none_nih, FALSE, FALSE, NULL); info->thread_sync = CreateEvent (&sec_none_nih, FALSE, FALSE, NULL);
} }
info->stack_ptr = &arg;
} }
while (1) while (1)
{ {
@ -100,6 +100,7 @@ cygthread::simplestub (VOID *arg)
init_exceptions (&except_entry); init_exceptions (&except_entry);
cygthread *info = (cygthread *) arg; cygthread *info = (cygthread *) arg;
info->stack_ptr = &arg;
info->func (info->arg == cygself ? info : info->arg); info->func (info->arg == cygself ? info : info->arg);
ExitThread (0); ExitThread (0);
} }
@ -175,6 +176,7 @@ cygthread::cygthread (LPTHREAD_START_ROUTINE start, LPVOID param,
} }
else else
{ {
stack_ptr = NULL;
h = CreateThread (&sec_none_nih, 0, is_freerange ? simplestub : stub, h = CreateThread (&sec_none_nih, 0, is_freerange ? simplestub : stub,
this, 0, &id); this, 0, &id);
if (!h) if (!h)
@ -243,13 +245,18 @@ cygthread::terminate_thread ()
(void) WaitForSingleObject (h, INFINITE); (void) WaitForSingleObject (h, INFINITE);
CloseHandle (h); CloseHandle (h);
while (!stack_ptr)
low_priority_sleep (0);
MEMORY_BASIC_INFORMATION m; MEMORY_BASIC_INFORMATION m;
memset (&m, 0, sizeof (m)); memset (&m, 0, sizeof (m));
(void) VirtualQuery (stack_ptr, &m, sizeof m); (void) VirtualQuery (stack_ptr, &m, sizeof m);
if (m.RegionSize) if (!m.RegionSize)
(void) VirtualFree (m.AllocationBase, 0, MEM_RELEASE); system_printf ("m.RegionSize 0? stack_ptr %p", stack_ptr);
else if (!VirtualFree (m.AllocationBase, 0, MEM_RELEASE))
system_printf ("VirtualFree of allocation base %p<%p> failed, %E",
stack_ptr, m.AllocationBase);
h = NULL; h = NULL;
__name = NULL; __name = NULL;