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| author | Siddhesh Poyarekar <siddhesh@redhat.com> | 2012-06-04 11:41:24 +0530 |
|---|---|---|
| committer | Siddhesh Poyarekar <siddhesh@redhat.com> | 2012-06-04 11:53:57 +0530 |
| commit | 4af3879c26dd1c91d68d87189587bcc8ecd3dcfc (patch) | |
| tree | ab8cf6b2af267b9da893166764a19854874d1437 | |
| parent | 2fd6ff133bc7df197ff3c00f50b3f9a485095b9c (diff) | |
| download | glibc-4af3879c26dd1c91d68d87189587bcc8ecd3dcfc.zip glibc-4af3879c26dd1c91d68d87189587bcc8ecd3dcfc.tar.gz glibc-4af3879c26dd1c91d68d87189587bcc8ecd3dcfc.tar.bz2 | |
Wrap __builtin_expect in pthread.h
[BZ #14188]
This fixes compilation of programs using pthread_cleanup_push built
with non-gcc compilers and older gcc compilers.
| -rw-r--r-- | ChangeLog | 7 | ||||
| -rw-r--r-- | misc/sys/cdefs.h | 6 | ||||
| -rw-r--r-- | nptl/ChangeLog | 9 | ||||
| -rw-r--r-- | nptl/sysdeps/pthread/pthread.h | 4 |
4 files changed, 24 insertions, 2 deletions
@@ -1,3 +1,10 @@ +2012-06-04 Siddhesh Poyarekar <siddhesh@redhat.com> + Jakub Jelinek <jakub@redhat.com> + + [BZ #14188] + * misc/sys/cdefs.h (__glibc_unlikely): New macro to wrap cases + where __builtin_expect is unavailable. + 2012-06-03 David S. Miller <davem@davemloft.net> * stdlib/longlong.h: Updated from GCC. diff --git a/misc/sys/cdefs.h b/misc/sys/cdefs.h index f4e96db..b94147e 100644 --- a/misc/sys/cdefs.h +++ b/misc/sys/cdefs.h @@ -369,6 +369,12 @@ # endif #endif +#if __GNUC__ >= 3 +# define __glibc_unlikely(cond) __builtin_expect((cond), 0) +#else +# define __glibc_unlikely(cond) (cond) +#endif + #include <bits/wordsize.h> #if defined __LONG_DOUBLE_MATH_OPTIONAL && defined __NO_LONG_DOUBLE_MATH diff --git a/nptl/ChangeLog b/nptl/ChangeLog index f966467..2bc3585 100644 --- a/nptl/ChangeLog +++ b/nptl/ChangeLog @@ -1,3 +1,12 @@ +2012-06-04 Siddhesh Poyarekar <siddhesh@redhat.com> + Jakub Jelinek <jakub@redhat.com> + + [BZ #14188] + * sysdeps/pthread/pthread.h + [!(defined __GNUC__ && defined __EXCEPTIONS)] + (pthread_cleanup_push, pthread_cleanup_push_defer_np): Use + __libc_unlikely instead of __builtin_expect. + 2012-05-30 H.J. Lu <hongjiu.lu@intel.com> [BZ #14117] diff --git a/nptl/sysdeps/pthread/pthread.h b/nptl/sysdeps/pthread/pthread.h index 88c7c25..246c1a0 100644 --- a/nptl/sysdeps/pthread/pthread.h +++ b/nptl/sysdeps/pthread/pthread.h @@ -659,7 +659,7 @@ __pthread_cleanup_routine (struct __pthread_cleanup_frame *__frame) void *__cancel_arg = (arg); \ int __not_first_call = __sigsetjmp ((struct __jmp_buf_tag *) (void *) \ __cancel_buf.__cancel_jmp_buf, 0); \ - if (__builtin_expect (__not_first_call, 0)) \ + if (__glibc_unlikely (__not_first_call)) \ { \ __cancel_routine (__cancel_arg); \ __pthread_unwind_next (&__cancel_buf); \ @@ -694,7 +694,7 @@ extern void __pthread_unregister_cancel (__pthread_unwind_buf_t *__buf) void *__cancel_arg = (arg); \ int __not_first_call = __sigsetjmp ((struct __jmp_buf_tag *) (void *) \ __cancel_buf.__cancel_jmp_buf, 0); \ - if (__builtin_expect (__not_first_call, 0)) \ + if (__glibc_unlikely (__not_first_call)) \ { \ __cancel_routine (__cancel_arg); \ __pthread_unwind_next (&__cancel_buf); \ |