-/* Copyright (C) 2003, 2005 Free Software Foundation, Inc.
+/* Copyright (C) 2003, 2005, 2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Jakub Jelinek <jakub@redhat.com>.
#include <unwind.h>
#include <pthreadP.h>
-static void (*libgcc_s_resume) (struct _Unwind_Exception *exc);
-static _Unwind_Reason_Code (*libgcc_s_personality)
+static void (*volatile libgcc_s_resume) (struct _Unwind_Exception *exc);
+static _Unwind_Reason_Code (*volatile libgcc_s_personality)
(int, _Unwind_Action, _Unwind_Exception_Class, struct _Unwind_Exception *,
struct _Unwind_Context *);
-static _Unwind_Reason_Code (*libgcc_s_forcedunwind)
+static _Unwind_Reason_Code (*volatile libgcc_s_forcedunwind)
(struct _Unwind_Exception *, _Unwind_Stop_Fn, void *);
-static _Unwind_Word (*libgcc_s_getcfa) (struct _Unwind_Context *);
+static _Unwind_Word (*volatile libgcc_s_getcfa) (struct _Unwind_Context *);
void
pthread_cancel_init (void)
_Unwind_Resume (struct _Unwind_Exception *exc)
{
if (__builtin_expect (libgcc_s_resume == NULL, 0))
- pthread_cancel_init ();
+ {
+ pthread_cancel_init ();
+ /* The function pointer has changed, ensure we reload it. */
+ asm volatile ("" : "+m" (libgcc_s_resume));
+ }
libgcc_s_resume (exc);
}
struct _Unwind_Context *context)
{
if (__builtin_expect (libgcc_s_personality == NULL, 0))
- pthread_cancel_init ();
+ {
+ pthread_cancel_init ();
+ /* The function pointer has changed, ensure we reload it. */
+ asm volatile ("" : "+m" (libgcc_s_personality));
+ }
return libgcc_s_personality (version, actions, exception_class,
ue_header, context);
}
void *stop_argument)
{
if (__builtin_expect (libgcc_s_forcedunwind == NULL, 0))
- pthread_cancel_init ();
+ {
+ pthread_cancel_init ();
+ /* The function pointer has changed, ensure we reload it. */
+ asm volatile ("" : "+m" (libgcc_s_forcedunwind));
+ }
return libgcc_s_forcedunwind (exc, stop, stop_argument);
}
_Unwind_GetCFA (struct _Unwind_Context *context)
{
if (__builtin_expect (libgcc_s_getcfa == NULL, 0))
- pthread_cancel_init ();
+ {
+ pthread_cancel_init ();
+ /* The function pointer has changed, ensure we reload it. */
+ asm volatile ("" : "+m" (libgcc_s_getcfa));
+ }
return libgcc_s_getcfa (context);
}