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| author | Ulrich Drepper <drepper@redhat.com> | 2004-09-08 06:09:02 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2004-09-08 06:09:02 +0000 |
| commit | 7ba0e52c39ae2a57933a856ce363ab0361ad1ed9 (patch) | |
| tree | aaabd4f3d63a9a27d7c8f4fb1105bcc3c5ef26a2 /sysdeps/powerpc/powerpc64 | |
| parent | f510d815bec80c004b194aaf4847fa40069cfd18 (diff) | |
| download | glibc-7ba0e52c39ae2a57933a856ce363ab0361ad1ed9.tar.gz glibc-7ba0e52c39ae2a57933a856ce363ab0361ad1ed9.tar.xz glibc-7ba0e52c39ae2a57933a856ce363ab0361ad1ed9.zip | |
Update.
* sysdeps/powerpc/bits/atomic.h (atomic_increment): Define. (atomic_decrement): Define. * sysdeps/powerpc/bits/atomic.h: Implement atomic_increment_val and atomic_decrement_val. * sysdeps/powerpc/powerpc32/bits/atomic.h: Likewise. * sysdeps/powerpc/powerpc64/bits/atomic.h: Likewise. * csu/tst-atomic.c (do_test): Add tests of atomic_increment_val and atomic_decrement_val.
Diffstat (limited to 'sysdeps/powerpc/powerpc64')
| -rw-r--r-- | sysdeps/powerpc/powerpc64/bits/atomic.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc64/bits/atomic.h b/sysdeps/powerpc/powerpc64/bits/atomic.h index fa25678410..e46dc1e4d7 100644 --- a/sysdeps/powerpc/powerpc64/bits/atomic.h +++ b/sysdeps/powerpc/powerpc64/bits/atomic.h @@ -168,6 +168,32 @@ __val; \ }) +# define __arch_atomic_increment_val_64(mem) \ + ({ \ + __typeof (*(mem)) __val; \ + __asm __volatile ("1: ldarx %0,0,%2\n" \ + " addi %0,%0,1\n" \ + " stdcx. %0,0,%2\n" \ + " bne- 1b" \ + : "=&b" (__val), "=m" (*mem) \ + : "b" (mem), "m" (*mem) \ + : "cr0", "memory"); \ + __val; \ + }) + +# define __arch_atomic_decrement_val_64(mem) \ + ({ \ + __typeof (*(mem)) __val; \ + __asm __volatile ("1: ldarx %0,0,%2\n" \ + " subi %0,%0,1\n" \ + " stdcx. %0,0,%2\n" \ + " bne- 1b" \ + : "=&b" (__val), "=m" (*mem) \ + : "b" (mem), "m" (*mem) \ + : "cr0", "memory"); \ + __val; \ + }) + # define __arch_atomic_decrement_if_positive_64(mem) \ ({ int __val, __tmp; \ __asm __volatile ("1: ldarx %0,0,%3\n" \ |