* Re: Backported r185231 from trunk. (issue 6878045)
@ 2012-12-04 0:52 asharif
0 siblings, 0 replies; 5+ messages in thread
From: asharif @ 2012-12-04 0:52 UTC (permalink / raw)
To: davidxl, xur; +Cc: gcc-patches, reply
On 2012/12/04 00:50:45, asharif wrote:
> When I backported this patch to google/gcc-4.6, I forgot to do it for
main. So
> now I am backporting this to google/main, google/4_7 and
google/4_7-mobile.
> This is the first of the 3 (google/main is the target).
> I am running crosstool_validate.py and it should most likely pass.
Meanwhile,
> please look at the patch.
FYI, the original patch is here:
https://codereview.appspot.com/6139063/, and it was submitted in CL:
http://gcc.gnu.org/viewcvs?view=revision&revision=187026.
https://codereview.appspot.com/6878045/
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Backported r185231 from trunk. (issue 6878045)
2012-12-05 21:46 xur
@ 2012-12-05 21:51 ` Xinliang David Li
0 siblings, 0 replies; 5+ messages in thread
From: Xinliang David Li @ 2012-12-05 21:51 UTC (permalink / raw)
To: asharif, Xinliang Li, Rong Xu, GCC Patches, reply
It (a trunk backport) is not needed for google/main.
David
On Wed, Dec 5, 2012 at 1:46 PM, <xur@google.com> wrote:
> Look good to me. Please check with David if google-main branch is
> currently opened for check-in.
>
> -Rong
>
> https://codereview.appspot.com/6878045/
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Backported r185231 from trunk. (issue 6878045)
@ 2012-12-05 21:46 xur
2012-12-05 21:51 ` Xinliang David Li
0 siblings, 1 reply; 5+ messages in thread
From: xur @ 2012-12-05 21:46 UTC (permalink / raw)
To: asharif, davidxl; +Cc: gcc-patches, reply
Look good to me. Please check with David if google-main branch is
currently opened for check-in.
-Rong
https://codereview.appspot.com/6878045/
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Backported r185231 from trunk. (issue 6878045)
2012-12-04 0:50 asharif
@ 2012-12-04 0:57 ` Xinliang David Li
0 siblings, 0 replies; 5+ messages in thread
From: Xinliang David Li @ 2012-12-04 0:57 UTC (permalink / raw)
To: asharif, Xinliang Li, Rong Xu, GCC Patches, reply
Looks good for gcc-4_7* branches. There is no need to port any trunk
changes to google/main (it will be synced to trunk at some point).
David
On Mon, Dec 3, 2012 at 4:50 PM, <asharif@chromium.org> wrote:
> Reviewers: davidxl, xur,
>
> Message:
> When I backported this patch to google/gcc-4.6, I forgot to do it for
> main. So now I am backporting this to google/main, google/4_7 and
> google/4_7-mobile.
>
> This is the first of the 3 (google/main is the target).
>
> I am running crosstool_validate.py and it should most likely pass.
> Meanwhile, please look at the patch.
>
> Description:
> 2012-03-12 Richard Guenther <rguenther@suse.de>
>
> * gthr.h (__GTHREAD_MUTEX_INIT_FUNCTION): Adjust specification.
> * gthr-posix.h (__GTHREAD_MUTEX_INIT_FUNCTION): Define.
> (__gthread_mutex_init_function): New function.
> * gthr-single.h (__GTHREAD_MUTEX_INIT_FUNCTION): Define.
>
> PR gcov/49484
> * libgcov.c: Include gthr.h.
> (__gcov_flush_mx): New global variable.
> (init_mx, init_mx_once): New functions.
> (__gcov_flush): Protect self with a mutex.
> (__gcov_fork): Re-initialize mutex after forking.
> * unwind-dw2-fde.c: Change condition under which to use
> __GTHREAD_MUTEX_INIT_FUNCTION.
>
> Please review this at https://codereview.appspot.com/6878045/
>
> Affected files:
> M .
> M contrib
> M gcc
> M gcc/ChangeLog.google-main
> M gcc/testsuite/gcc.target/powerpc/ppc-round.c
> M libgcc/ChangeLog
> M libgcc/gthr-posix.h
> M libgcc/gthr-single.h
> M libgcc/gthr.h
> M libgcc/libgcov.c
> M libgcc/unwind-dw2-fde.c
> M libjava/classpath
>
>
>
> Property changes on: .
> ___________________________________________________________________
> Modified: svn:mergeinfo
> Merged /trunk:r185231
>
>
> Property changes on: gcc
> ___________________________________________________________________
> Modified: svn:mergeinfo
> Merged /trunk/gcc:r185231
>
>
> Property changes on: gcc/testsuite/gcc.target/powerpc/ppc-round.c
> ___________________________________________________________________
> Modified: svn:mergeinfo
> Merged /trunk/gcc/testsuite/gcc.target/powerpc/ppc-round.c:r185231
>
> Index: gcc/ChangeLog.google-main
> ===================================================================
> --- gcc/ChangeLog.google-main (revision 194106)
> +++ gcc/ChangeLog.google-main (working copy)
> @@ -1,3 +1,24 @@
> +2012-12-03 Ahmad Sharif <asharif@google.com>
> +
> + Backport r185231 from trunk.
> +
> + 2012-03-12 Richard Guenther <rguenther@suse.de>
> +
> + * gthr.h (__GTHREAD_MUTEX_INIT_FUNCTION): Adjust specification.
> + * gthr-posix.h (__GTHREAD_MUTEX_INIT_FUNCTION): Define.
> + (__gthread_mutex_init_function): New function.
> + * gthr-single.h (__GTHREAD_MUTEX_INIT_FUNCTION): Define.
> +
> + PR gcov/49484
> + * libgcov.c: Include gthr.h.
> + (__gcov_flush_mx): New global variable.
> + (init_mx, init_mx_once): New functions.
> + (__gcov_flush): Protect self with a mutex.
> + (__gcov_fork): Re-initialize mutex after forking.
> + * unwind-dw2-fde.c: Change condition under which to use
> + __GTHREAD_MUTEX_INIT_FUNCTION.
> +
> +
> 2012-11-09 Harshit Chopra <harshit@google.com>
>
> * gcc/c-family/c-common.c
> (handle_always_patch_for_instrumentation_attribute):
> Index: libgcc/unwind-dw2-fde.c
> ===================================================================
> --- libgcc/unwind-dw2-fde.c (revision 194106)
> +++ libgcc/unwind-dw2-fde.c (working copy)
> @@ -47,11 +47,10 @@
>
> #ifdef __GTHREAD_MUTEX_INIT
> static __gthread_mutex_t object_mutex = __GTHREAD_MUTEX_INIT;
> +#define init_object_mutex_once()
> #else
> static __gthread_mutex_t object_mutex;
> -#endif
>
> -#ifdef __GTHREAD_MUTEX_INIT_FUNCTION
> static void
> init_object_mutex (void)
> {
> @@ -64,8 +63,6 @@
> static __gthread_once_t once = __GTHREAD_ONCE_INIT;
> __gthread_once (&once, init_object_mutex);
> }
> -#else
> -#define init_object_mutex_once()
> #endif
>
> /* Called from crtbegin.o to register the unwind info for an object. */
> Index: libgcc/gthr.h
> ===================================================================
> --- libgcc/gthr.h (revision 194106)
> +++ libgcc/gthr.h (working copy)
> @@ -52,11 +52,12 @@
> to initialize __gthread_mutex_t to get a fast
> non-recursive mutex.
> __GTHREAD_MUTEX_INIT_FUNCTION
> - some systems can't initialize a mutex without a
> - function call. On such systems, define this to a
> - function which looks like this:
> + to initialize __gthread_mutex_t to get a fast
> + non-recursive mutex.
> + Define this to a function which looks like this:
> void __GTHREAD_MUTEX_INIT_FUNCTION (__gthread_mutex_t *)
> - Don't define __GTHREAD_MUTEX_INIT in this case
> + Some systems can't initialize a mutex without a
> + function call. Don't define __GTHREAD_MUTEX_INIT in this
> case.
> __GTHREAD_RECURSIVE_MUTEX_INIT
> __GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION
> as above, but for a recursive mutex.
> Index: libgcc/gthr-posix.h
> ===================================================================
> --- libgcc/gthr-posix.h (revision 194106)
> +++ libgcc/gthr-posix.h (working copy)
> @@ -63,6 +63,7 @@
> #define __GTHREAD_HAS_COND 1
>
> #define __GTHREAD_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
> +#define __GTHREAD_MUTEX_INIT_FUNCTION __gthread_mutex_init_function
> #define __GTHREAD_ONCE_INIT PTHREAD_ONCE_INIT
> #if defined(PTHREAD_RECURSIVE_MUTEX_INITIALIZER)
> #define __GTHREAD_RECURSIVE_MUTEX_INIT PTHREAD_RECURSIVE_MUTEX_INITIALIZER
> @@ -754,6 +755,14 @@
> #endif
>
> static inline int
> +__gthread_mutex_init_function (__gthread_mutex_t *__mutex)
> +{
> + if (__gthread_active_p ())
> + return __gthrw_(pthread_mutex_init) (__mutex, NULL);
> + return 0;
> +}
> +
> +static inline int
> __gthread_mutex_destroy (__gthread_mutex_t *__mutex)
> {
> if (__gthread_active_p ())
> Index: libgcc/libgcov.c
> ===================================================================
> --- libgcc/libgcov.c (revision 194106)
> +++ libgcc/libgcov.c (working copy)
> @@ -48,6 +48,7 @@
> #include "tm.h"
> #endif /* __KERNEL__ */
> #include "libgcc_tm.h"
> +#include "gthr.h"
>
> #if 1
> #define THREAD_PREFIX __thread
> @@ -689,6 +690,25 @@
> info->version = 0;
> }
>
> +#ifdef __GTHREAD_MUTEX_INIT
> +ATTRIBUTE_HIDDEN __gthread_mutex_t __gcov_flush_mx = __GTHREAD_MUTEX_INIT;
> +#define init_mx_once()
> +#else
> +__gthread_mutex_t __gcov_flush_mx ATTRIBUTE_HIDDEN;
> +
> +static void
> +init_mx (void)
> +{
> + __GTHREAD_MUTEX_INIT_FUNCTION (&mx);
> +}
> +static void
> +init_mx_once (void)
> +{
> + static __gthread_once_t once = __GTHREAD_ONCE_INIT;
> + __gthread_once (&once, init_mx);
> +}
> +#endif
> +
> /* Called before fork or exec - write out profile information gathered so
> far and reset it to zero. This avoids duplication or loss of the
> profile information gathered so far. */
> @@ -696,8 +716,13 @@
> void
> __gcov_flush (void)
> {
> + init_mx_once ();
> + __gthread_mutex_lock (&__gcov_flush_mx);
> +
> gcov_exit ();
> gcov_clear ();
> +
> + __gthread_mutex_unlock (&__gcov_flush_mx);
> }
>
> #else /* __GCOV_KERNEL__ */
> @@ -1865,8 +1890,13 @@
> pid_t
> __gcov_fork (void)
> {
> + pid_t pid;
> + extern __gthread_mutex_t __gcov_flush_mx;
> __gcov_flush ();
> - return fork ();
> + pid = fork ();
> + if (pid == 0)
> + __GTHREAD_MUTEX_INIT_FUNCTION (&__gcov_flush_mx);
> + return pid;
> }
> #endif
>
> Index: libgcc/ChangeLog
> ===================================================================
> --- libgcc/ChangeLog (revision 194106)
> +++ libgcc/ChangeLog (working copy)
> @@ -1,3 +1,19 @@
> +2012-03-12 Richard Guenther <rguenther@suse.de>
> +
> + * gthr.h (__GTHREAD_MUTEX_INIT_FUNCTION): Adjust specification.
> + * gthr-posix.h (__GTHREAD_MUTEX_INIT_FUNCTION): Define.
> + (__gthread_mutex_init_function): New function.
> + * gthr-single.h (__GTHREAD_MUTEX_INIT_FUNCTION): Define.
> +
> + PR gcov/49484
> + * libgcov.c: Include gthr.h.
> + (__gcov_flush_mx): New global variable.
> + (init_mx, init_mx_once): New functions.
> + (__gcov_flush): Protect self with a mutex.
> + (__gcov_fork): Re-initialize mutex after forking.
> + * unwind-dw2-fde.c: Change condition under which to use
> + __GTHREAD_MUTEX_INIT_FUNCTION.
> +
> 2012-03-01 Kai Tietz <ktietz@redhat.com>
>
> * soft-fp: Imported from glibc upstream.
> Index: libgcc/gthr-single.h
> ===================================================================
> --- libgcc/gthr-single.h (revision 194106)
> +++ libgcc/gthr-single.h (working copy)
> @@ -36,6 +36,7 @@
>
> #define __GTHREAD_ONCE_INIT 0
> #define __GTHREAD_MUTEX_INIT 0
> +#define __GTHREAD_MUTEX_INIT_FUNCTION (mx)
> #define __GTHREAD_RECURSIVE_MUTEX_INIT 0
>
> #define UNUSED __attribute__((unused))
>
> Property changes on: contrib
> ___________________________________________________________________
> Modified: svn:mergeinfo
> Merged /trunk/contrib:r185231
>
>
> Property changes on: libjava/classpath
> ___________________________________________________________________
> Modified: svn:mergeinfo
> Merged /trunk/libjava/classpath:r185231
>
>
>
^ permalink raw reply [flat|nested] 5+ messages in thread
* Backported r185231 from trunk. (issue 6878045)
@ 2012-12-04 0:50 asharif
2012-12-04 0:57 ` Xinliang David Li
0 siblings, 1 reply; 5+ messages in thread
From: asharif @ 2012-12-04 0:50 UTC (permalink / raw)
To: davidxl, xur; +Cc: gcc-patches, reply
Reviewers: davidxl, xur,
Message:
When I backported this patch to google/gcc-4.6, I forgot to do it for
main. So now I am backporting this to google/main, google/4_7 and
google/4_7-mobile.
This is the first of the 3 (google/main is the target).
I am running crosstool_validate.py and it should most likely pass.
Meanwhile, please look at the patch.
Description:
2012-03-12 Richard Guenther <rguenther@suse.de>
* gthr.h (__GTHREAD_MUTEX_INIT_FUNCTION): Adjust specification.
* gthr-posix.h (__GTHREAD_MUTEX_INIT_FUNCTION): Define.
(__gthread_mutex_init_function): New function.
* gthr-single.h (__GTHREAD_MUTEX_INIT_FUNCTION): Define.
PR gcov/49484
* libgcov.c: Include gthr.h.
(__gcov_flush_mx): New global variable.
(init_mx, init_mx_once): New functions.
(__gcov_flush): Protect self with a mutex.
(__gcov_fork): Re-initialize mutex after forking.
* unwind-dw2-fde.c: Change condition under which to use
__GTHREAD_MUTEX_INIT_FUNCTION.
Please review this at https://codereview.appspot.com/6878045/
Affected files:
M .
M contrib
M gcc
M gcc/ChangeLog.google-main
M gcc/testsuite/gcc.target/powerpc/ppc-round.c
M libgcc/ChangeLog
M libgcc/gthr-posix.h
M libgcc/gthr-single.h
M libgcc/gthr.h
M libgcc/libgcov.c
M libgcc/unwind-dw2-fde.c
M libjava/classpath
Property changes on: .
___________________________________________________________________
Modified: svn:mergeinfo
Merged /trunk:r185231
Property changes on: gcc
___________________________________________________________________
Modified: svn:mergeinfo
Merged /trunk/gcc:r185231
Property changes on: gcc/testsuite/gcc.target/powerpc/ppc-round.c
___________________________________________________________________
Modified: svn:mergeinfo
Merged /trunk/gcc/testsuite/gcc.target/powerpc/ppc-round.c:r185231
Index: gcc/ChangeLog.google-main
===================================================================
--- gcc/ChangeLog.google-main (revision 194106)
+++ gcc/ChangeLog.google-main (working copy)
@@ -1,3 +1,24 @@
+2012-12-03 Ahmad Sharif <asharif@google.com>
+
+ Backport r185231 from trunk.
+
+ 2012-03-12 Richard Guenther <rguenther@suse.de>
+
+ * gthr.h (__GTHREAD_MUTEX_INIT_FUNCTION): Adjust specification.
+ * gthr-posix.h (__GTHREAD_MUTEX_INIT_FUNCTION): Define.
+ (__gthread_mutex_init_function): New function.
+ * gthr-single.h (__GTHREAD_MUTEX_INIT_FUNCTION): Define.
+
+ PR gcov/49484
+ * libgcov.c: Include gthr.h.
+ (__gcov_flush_mx): New global variable.
+ (init_mx, init_mx_once): New functions.
+ (__gcov_flush): Protect self with a mutex.
+ (__gcov_fork): Re-initialize mutex after forking.
+ * unwind-dw2-fde.c: Change condition under which to use
+ __GTHREAD_MUTEX_INIT_FUNCTION.
+
+
2012-11-09 Harshit Chopra <harshit@google.com>
* gcc/c-family/c-common.c
(handle_always_patch_for_instrumentation_attribute):
Index: libgcc/unwind-dw2-fde.c
===================================================================
--- libgcc/unwind-dw2-fde.c (revision 194106)
+++ libgcc/unwind-dw2-fde.c (working copy)
@@ -47,11 +47,10 @@
#ifdef __GTHREAD_MUTEX_INIT
static __gthread_mutex_t object_mutex = __GTHREAD_MUTEX_INIT;
+#define init_object_mutex_once()
#else
static __gthread_mutex_t object_mutex;
-#endif
-#ifdef __GTHREAD_MUTEX_INIT_FUNCTION
static void
init_object_mutex (void)
{
@@ -64,8 +63,6 @@
static __gthread_once_t once = __GTHREAD_ONCE_INIT;
__gthread_once (&once, init_object_mutex);
}
-#else
-#define init_object_mutex_once()
#endif
/* Called from crtbegin.o to register the unwind info for an object. */
Index: libgcc/gthr.h
===================================================================
--- libgcc/gthr.h (revision 194106)
+++ libgcc/gthr.h (working copy)
@@ -52,11 +52,12 @@
to initialize __gthread_mutex_t to get a fast
non-recursive mutex.
__GTHREAD_MUTEX_INIT_FUNCTION
- some systems can't initialize a mutex without a
- function call. On such systems, define this to a
- function which looks like this:
+ to initialize __gthread_mutex_t to get a fast
+ non-recursive mutex.
+ Define this to a function which looks like this:
void __GTHREAD_MUTEX_INIT_FUNCTION (__gthread_mutex_t *)
- Don't define __GTHREAD_MUTEX_INIT in this case
+ Some systems can't initialize a mutex without a
+ function call. Don't define __GTHREAD_MUTEX_INIT in this case.
__GTHREAD_RECURSIVE_MUTEX_INIT
__GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION
as above, but for a recursive mutex.
Index: libgcc/gthr-posix.h
===================================================================
--- libgcc/gthr-posix.h (revision 194106)
+++ libgcc/gthr-posix.h (working copy)
@@ -63,6 +63,7 @@
#define __GTHREAD_HAS_COND 1
#define __GTHREAD_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
+#define __GTHREAD_MUTEX_INIT_FUNCTION __gthread_mutex_init_function
#define __GTHREAD_ONCE_INIT PTHREAD_ONCE_INIT
#if defined(PTHREAD_RECURSIVE_MUTEX_INITIALIZER)
#define __GTHREAD_RECURSIVE_MUTEX_INIT PTHREAD_RECURSIVE_MUTEX_INITIALIZER
@@ -754,6 +755,14 @@
#endif
static inline int
+__gthread_mutex_init_function (__gthread_mutex_t *__mutex)
+{
+ if (__gthread_active_p ())
+ return __gthrw_(pthread_mutex_init) (__mutex, NULL);
+ return 0;
+}
+
+static inline int
__gthread_mutex_destroy (__gthread_mutex_t *__mutex)
{
if (__gthread_active_p ())
Index: libgcc/libgcov.c
===================================================================
--- libgcc/libgcov.c (revision 194106)
+++ libgcc/libgcov.c (working copy)
@@ -48,6 +48,7 @@
#include "tm.h"
#endif /* __KERNEL__ */
#include "libgcc_tm.h"
+#include "gthr.h"
#if 1
#define THREAD_PREFIX __thread
@@ -689,6 +690,25 @@
info->version = 0;
}
+#ifdef __GTHREAD_MUTEX_INIT
+ATTRIBUTE_HIDDEN __gthread_mutex_t __gcov_flush_mx = __GTHREAD_MUTEX_INIT;
+#define init_mx_once()
+#else
+__gthread_mutex_t __gcov_flush_mx ATTRIBUTE_HIDDEN;
+
+static void
+init_mx (void)
+{
+ __GTHREAD_MUTEX_INIT_FUNCTION (&mx);
+}
+static void
+init_mx_once (void)
+{
+ static __gthread_once_t once = __GTHREAD_ONCE_INIT;
+ __gthread_once (&once, init_mx);
+}
+#endif
+
/* Called before fork or exec - write out profile information gathered so
far and reset it to zero. This avoids duplication or loss of the
profile information gathered so far. */
@@ -696,8 +716,13 @@
void
__gcov_flush (void)
{
+ init_mx_once ();
+ __gthread_mutex_lock (&__gcov_flush_mx);
+
gcov_exit ();
gcov_clear ();
+
+ __gthread_mutex_unlock (&__gcov_flush_mx);
}
#else /* __GCOV_KERNEL__ */
@@ -1865,8 +1890,13 @@
pid_t
__gcov_fork (void)
{
+ pid_t pid;
+ extern __gthread_mutex_t __gcov_flush_mx;
__gcov_flush ();
- return fork ();
+ pid = fork ();
+ if (pid == 0)
+ __GTHREAD_MUTEX_INIT_FUNCTION (&__gcov_flush_mx);
+ return pid;
}
#endif
Index: libgcc/ChangeLog
===================================================================
--- libgcc/ChangeLog (revision 194106)
+++ libgcc/ChangeLog (working copy)
@@ -1,3 +1,19 @@
+2012-03-12 Richard Guenther <rguenther@suse.de>
+
+ * gthr.h (__GTHREAD_MUTEX_INIT_FUNCTION): Adjust specification.
+ * gthr-posix.h (__GTHREAD_MUTEX_INIT_FUNCTION): Define.
+ (__gthread_mutex_init_function): New function.
+ * gthr-single.h (__GTHREAD_MUTEX_INIT_FUNCTION): Define.
+
+ PR gcov/49484
+ * libgcov.c: Include gthr.h.
+ (__gcov_flush_mx): New global variable.
+ (init_mx, init_mx_once): New functions.
+ (__gcov_flush): Protect self with a mutex.
+ (__gcov_fork): Re-initialize mutex after forking.
+ * unwind-dw2-fde.c: Change condition under which to use
+ __GTHREAD_MUTEX_INIT_FUNCTION.
+
2012-03-01 Kai Tietz <ktietz@redhat.com>
* soft-fp: Imported from glibc upstream.
Index: libgcc/gthr-single.h
===================================================================
--- libgcc/gthr-single.h (revision 194106)
+++ libgcc/gthr-single.h (working copy)
@@ -36,6 +36,7 @@
#define __GTHREAD_ONCE_INIT 0
#define __GTHREAD_MUTEX_INIT 0
+#define __GTHREAD_MUTEX_INIT_FUNCTION (mx)
#define __GTHREAD_RECURSIVE_MUTEX_INIT 0
#define UNUSED __attribute__((unused))
Property changes on: contrib
___________________________________________________________________
Modified: svn:mergeinfo
Merged /trunk/contrib:r185231
Property changes on: libjava/classpath
___________________________________________________________________
Modified: svn:mergeinfo
Merged /trunk/libjava/classpath:r185231
^ permalink raw reply [flat|nested] 5+ messages in thread
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2012-12-04 0:52 Backported r185231 from trunk. (issue 6878045) asharif
-- strict thread matches above, loose matches on Subject: below --
2012-12-05 21:46 xur
2012-12-05 21:51 ` Xinliang David Li
2012-12-04 0:50 asharif
2012-12-04 0:57 ` Xinliang David Li
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