qiurui
/
glibc
mirror of git://sourceware.org/git/glibc.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Direct __ppc_get_timebase to __builtin_ppc_get_timebase for GCC 4.8+. 

Adapts __ppc_get_timebase to the upcoming GCC 4.8 that provides
__builtin_ppc_get_timebase.  Building applicationns with previous
versions of GCC will continue to use the internal implementation.
This commit is contained in:
Tulio Magno Quites Machado Filho 2012-11-02 11:20:39 -05:00 committed by Ryan S. Arnold
parent dcdae19a3f
commit d7d08bdede
2 changed files with 14 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
ChangeLog
View File

@ -1,3 +1,9 @@
2012-11-02 Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com>
* sysdeps/powerpc/sys/platform/ppc.h (__ppc_get_timebase): Use
__builtin_ppc_get_timebase when building with GCC >= 4.8 instead
of the internal implementation.
2012-11-02 Joseph Myers <joseph@codesourcery.com>
* include/sys/syslog.h [_ISOMAC]: Disable all contents of file

5
sysdeps/powerpc/sys/platform/ppc.h
View File

@ -19,6 +19,7 @@
#ifndef _SYS_PLATFORM_PPC_H
#define _SYS_PLATFORM_PPC_H 1
#include <features.h>
#include <stdint.h>
#include <bits/ppc.h>
@ -26,6 +27,9 @@
static inline uint64_t
__ppc_get_timebase (void)
{
#if __GNUC_PREREQ (4, 8)
return __builtin_ppc_get_timebase ();
#else
# ifdef __powerpc64__
uint64_t __tb;
/* "volatile" is necessary here, because the user expects this assembly
@ -43,6 +47,7 @@ __ppc_get_timebase (void)
: "=r" (__tbu), "=r" (__tbl), "=r" (__tmp));
return (((uint64_t) __tbu << 32) | __tbl);
# endif /* not __powerpc64__ */
#endif
}
#endif /* sys/platform/ppc.h */