From 7ba0e52c39ae2a57933a856ce363ab0361ad1ed9 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Wed, 8 Sep 2004 06:09:02 +0000 Subject: 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. --- sysdeps/powerpc/powerpc64/bits/atomic.h | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) (limited to 'sysdeps/powerpc/powerpc64') 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" \ -- cgit v1.2.3