Changes in kernel/arch/ia32/include/barrier.h [1ea99cc:7a0359b] in mainline

File:

• kernel/arch/ia32/include/barrier.h (modified) (3 diffs)

kernel/arch/ia32/include/barrier.h

@@ -36 +36 @@
 #define KERN_ia32_BARRIER_H_
 
+#include <trace.h>
+
 /*
  * NOTE:
@@ -50 +52 @@
 #define CS_LEAVE_BARRIER()  asm volatile ("" ::: "memory")
 
-static inline void cpuid_serialization(void)
+NO_TRACE static inline void cpuid_serialization(void)
 {
-#ifndef __IN_SHARED_LIBC__
         asm volatile (
                 "xorl %%eax, %%eax\n"
@@ -58 +59 @@
                 ::: "eax", "ebx", "ecx", "edx", "memory"
         );
-#else
-        /* Must not clobber PIC register ebx */
-        asm volatile (
-                "movl %%ebx, %%esi\n"
-                "xorl %%eax, %%eax\n"
-                "cpuid\n"
-                "movl %%esi, %%ebx\n"
-                ::: "eax", "ecx", "edx", "esi", "memory"
-        );
-#endif
 }