biosdevname/biosdevname-pic.patch

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Index: biosdevname-0.7.1/src/bios_dev_name.c
===================================================================
--- biosdevname-0.7.1.orig/src/bios_dev_name.c
+++ biosdevname-0.7.1/src/bios_dev_name.c
@@ -114,10 +114,21 @@ static u_int32_t
cpuid (u_int32_t eax, u_int32_t ecx)
{
asm volatile (
- "xor %%ebx, %%ebx; cpuid"
+#ifdef __x86_64__
+ "push %%rbx\n"
+#else
+ "push %%ebx\n"
+#endif
+ "xor %%ebx, %%ebx\n" /* not useful? ebx is overwritten by call? */
+ "cpuid\n"
+#ifdef __x86_64__
+ "pop %%rbx\n"
+#else
+ "pop %%ebx\n"
+#endif
: "=a" (eax), "=c" (ecx)
: "a" (eax)
- : "%ebx", "%edx");
+ : "%edx");
return ecx;
}