From: Bert Hubert <bert.hubert@netherlabs.nl>
Date: Mon, 17 Jan 2011 20:04:37 +0000 (+0000)
Subject: alternate rdtsc() implementation
X-Git-Tag: auth-3.0~358
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=cc6238275a18c0530dfa5655d96428c0f1ac5650;p=thirdparty%2Fpdns.git

alternate rdtsc() implementation


git-svn-id: svn://svn.powerdns.com/pdns/trunk/pdns@1889 d19b8d6e-7fed-0310-83ef-9ca221ded41b
---

diff --git a/pdns/rdtsc.hh b/pdns/rdtsc.hh
index b78a0e8eb7..c65dee3b01 100644
--- a/pdns/rdtsc.hh
+++ b/pdns/rdtsc.hh
@@ -1,6 +1,14 @@
 #ifndef PDNS_RDTSC_HH
 #define PDNS_RDTSC_HH
 
+#define rdtsc() \
+({ \
+  unsigned long lowPart, highPart;        				\
+  __asm__ __volatile__("cpuid"); \
+  __asm__ __volatile__("rdtsc" : "=a" (lowPart), "=d" (highPart)); \
+    ((((unsigned long long) highPart) << 32) | lowPart); \
+})
+
 
 
 #define RDTSC(qp) \