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authorJakub Jelinek <jakub@redhat.com>2007-07-12 18:26:36 +0000
committerJakub Jelinek <jakub@redhat.com>2007-07-12 18:26:36 +0000
commit0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (patch)
tree2ea1f8305970753e4a657acb2ccc15ca3eec8e2c /nptl/perf.c
parent7d58530341304d403a6626d7f7a1913165fe2f32 (diff)
downloadglibc-0ecb606cb6cf65de1d9fc8a919bceb4be476c602.tar.gz
2.5-18.1
Diffstat (limited to 'nptl/perf.c')
-rw-r--r--nptl/perf.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/nptl/perf.c b/nptl/perf.c
index 5b920d719d..f0dbc29ca0 100644
--- a/nptl/perf.c
+++ b/nptl/perf.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2005 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
@@ -705,6 +705,11 @@ clock_getcpuclockid (pid_t pid, clockid_t *clock_id)
#ifdef i386
#define HP_TIMING_NOW(Var) __asm__ __volatile__ ("rdtsc" : "=A" (Var))
+#elif defined __x86_64__
+# define HP_TIMING_NOW(Var) \
+ ({ unsigned int _hi, _lo; \
+ asm volatile ("rdtsc" : "=a" (_lo), "=d" (_hi)); \
+ (Var) = ((unsigned long long int) _hi << 32) | _lo; })
#elif defined __ia64__
#define HP_TIMING_NOW(Var) __asm__ __volatile__ ("mov %0=ar.itc" : "=r" (Var) : : "memory")
#else