X-Git-Url: https://git.liburcu.org/?a=blobdiff_plain;ds=sidebyside;f=urcu%2Farch_x86.h;h=e3171a24fa608d044de77ad8633e67e4adbbc69f;hb=a2c502feb1f1510eef3234168bc16a98404694bf;hp=c4674de0d35adfbe3eaa19560ba3a4750583fecb;hpb=e4d1eb09301904b56cdf22e1d6042df4492d57cb;p=urcu.git

diff --git a/urcu/arch_x86.h b/urcu/arch_x86.h
index c4674de..e3171a2 100644
--- a/urcu/arch_x86.h
+++ b/urcu/arch_x86.h
@@ -47,16 +47,6 @@ extern "C" {
 
 #define cpu_relax()	asm volatile("rep; nop" : : : "memory");
 
-/*
- * Serialize core instruction execution. Also acts as a compiler barrier.
- * Cannot use cpuid on PIC because it clobbers the ebx register;
- * error: PIC register 'ebx' clobbered in 'asm'
- */
-#ifndef __PIC__
-#define sync_core()							  \
-	asm volatile("cpuid" : : : "memory", "eax", "ebx", "ecx", "edx");
-#endif
-
 #define rdtscll(val)							  \
 	do {						  		  \
 	     unsigned int __a, __d;					  \