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authorUlrich Drepper <drepper@redhat.com>2007-05-28 16:42:08 +0000
committerUlrich Drepper <drepper@redhat.com>2007-05-28 16:42:08 +0000
commit991fa82be561407e9cfb42a328b2b56d5a9debf1 (patch)
tree5c72afab34fe26f8dd035bd7dc761f9addc2ab94 /nptl/sysdeps/powerpc
parentcd0dbd89441dc1fc88a3b5d7d638b03c2a62e17c (diff)
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* sysdeps/i386/tls.h (THREAD_GSCOPE_RESET_FLAG): Use explicit
	insn suffix.
	(THREAD_GSCOPE_GET_FLAG): Remove.
	* sysdeps/x86_64/tls.h (THREAD_GSCOPE_GET_FLAG): Remove.
	* allocatestack.c (__wait_lookup_done): Revert 2007-05-24
	changes.
	* sysdeps/powerpc/tls.h (tcbhead_t): Remove gscope_flag.
	(THREAD_GSCOPE_GET_FLAG): Remove.
	(THREAD_GSCOPE_RESET_FLAG): Use THREAD_SELF->header.gscope_flag
	instead of THREAD_GSCOPE_GET_FLAG.
	(THREAD_GSCOPE_SET_FLAG): Likewise.  Add atomic_write_barrier after
	it.
	* sysdeps/s390/tls.h (THREAD_GSCOPE_FLAG_UNUSED,
	THREAD_GSCOPE_FLAG_USED, THREAD_GSCOPE_FLAG_WAIT,
	THREAD_GSCOPE_RESET_FLAG, THREAD_GSCOPE_SET_FLAG,
	THREAD_GSCOPE_WAIT): Define.
	* sysdeps/sparc/tls.h (THREAD_GSCOPE_FLAG_UNUSED,
	THREAD_GSCOPE_FLAG_USED, THREAD_GSCOPE_FLAG_WAIT,
	THREAD_GSCOPE_RESET_FLAG, THREAD_GSCOPE_SET_FLAG,
	THREAD_GSCOPE_WAIT): Define.
	* sysdeps/sh/tls.h (THREAD_GSCOPE_FLAG_UNUSED,
	THREAD_GSCOPE_FLAG_USED, THREAD_GSCOPE_FLAG_WAIT,
	THREAD_GSCOPE_RESET_FLAG, THREAD_GSCOPE_SET_FLAG,
	THREAD_GSCOPE_WAIT): Define.
	* sysdeps/ia64/tls.h (THREAD_GSCOPE_FLAG_UNUSED,
	THREAD_GSCOPE_FLAG_USED, THREAD_GSCOPE_FLAG_WAIT,
	THREAD_GSCOPE_RESET_FLAG, THREAD_GSCOPE_SET_FLAG,
	THREAD_GSCOPE_WAIT): Define.

2007-05-24  Richard Henderson  <rth@redhat.com>

	* descr.h (struct pthread): Add header.gscope_flag.
	* sysdeps/alpha/tls.h (THREAD_GSCOPE_FLAG_UNUSED,
	THREAD_GSCOPE_FLAG_USED, THREAD_GSCOPE_FLAG_WAIT,
	THREAD_GSCOPE_RESET_FLAG, THREAD_GSCOPE_SET_FLAG,
	THREAD_GSCOPE_WAIT): Define.
Diffstat (limited to 'nptl/sysdeps/powerpc')
-rw-r--r--nptl/sysdeps/powerpc/tls.h21
1 files changed, 11 insertions, 10 deletions
diff --git a/nptl/sysdeps/powerpc/tls.h b/nptl/sysdeps/powerpc/tls.h
index 136fe2a100..bd9c99e06e 100644
--- a/nptl/sysdeps/powerpc/tls.h
+++ b/nptl/sysdeps/powerpc/tls.h
@@ -63,11 +63,10 @@ typedef union dtv
 # include <nptl/descr.h>
 
 /* The stack_guard is accessed directly by GCC -fstack-protector code,
-   so it is a part of public ABI.  The dtv, pointer_guard and gscope_flag
-   fields are private.  */
+   so it is a part of public ABI.  The dtv and pointer_guard fields
+   are private.  */
 typedef struct
 {
-  int gscope_flag;
   uintptr_t pointer_guard;
   uintptr_t stack_guard;
   dtv_t *dtv;
@@ -181,24 +180,26 @@ register void *__thread_register __asm__ ("r13");
    different value to mean unset l_tls_offset.  */
 # define NO_TLS_OFFSET		-1
 
-/* Get and set the global scope generation counter in the TCB head.  */
+/* Get and set the global scope generation counter in struct pthread.  */
 #define THREAD_GSCOPE_FLAG_UNUSED 0
 #define THREAD_GSCOPE_FLAG_USED   1
 #define THREAD_GSCOPE_FLAG_WAIT   2
-#define THREAD_GSCOPE_GET_FLAG(descr) \
-  (((tcbhead_t *) ((char *) (descr)					     \
-		   + TLS_PRE_TCB_SIZE))[-1].gscope_flag)
 #define THREAD_GSCOPE_RESET_FLAG() \
   do									     \
     { int __res								     \
-	= atomic_exchange_rel (&THREAD_GSCOPE_GET_FLAG (THREAD_SELF),	     \
+	= atomic_exchange_rel (&THREAD_SELF->header.gscope_flag,	     \
 			       THREAD_GSCOPE_FLAG_UNUSED);		     \
       if (__res == THREAD_GSCOPE_FLAG_WAIT)				     \
-	lll_futex_wake (&THREAD_GSCOPE_GET_FLAG (THREAD_SELF), 1);	     \
+	lll_futex_wake (&THREAD_SELF->header.gscope_flag, 1);		     \
     }									     \
   while (0)
 #define THREAD_GSCOPE_SET_FLAG() \
-  (THREAD_GSCOPE_GET_FLAG (THREAD_SELF) = THREAD_GSCOPE_FLAG_USED)
+  do									     \
+    {									     \
+      THREAD_SELF->header.gscope_flag = THREAD_GSCOPE_FLAG_USED;	     \
+      atomic_write_barrier ();						     \
+    }									     \
+  while (0)
 #define THREAD_GSCOPE_WAIT() \
   GL(dl_wait_lookup_done) ()