inteltool: fixed 64 bit build

[coreboot.git] / util / inteltool / cpu.c

diff --git a/util/inteltool/cpu.c b/util/inteltool/cpu.c
index 9037d5df66fe1af08fea89315a13597adaae0387..20748bda44b0d3b39bfaf118e5f50783aa5b4aca 100644 (file)
--- a/util/inteltool/cpu.c
+++ b/util/inteltool/cpu.c
@@ -26,6 +26,12 @@
 
 #include "inteltool.h"
 
+#ifdef __x86_64__
+# define BREG  "%%rbx"
+#else
+# define BREG  "%%ebx"
+#endif
+
 int fd_msr;
 
 unsigned int cpuid(unsigned int op)
@@ -34,9 +40,9 @@ unsigned int cpuid(unsigned int op)
 
 #if defined(__PIC__) || defined(__DARWIN__) && !defined(__LP64__)
        asm volatile (
-               "pushl %%ebx\n"
-               "cpuid\n"
-               "popl %%ebx\n"
+               "push " BREG "\n\t"
+               "cpuid\n\t"
+               "pop " BREG "\n\t"
                : "=a" (ret) : "a" (op) : "%ecx", "%edx"
        );
 #else