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--- src/cputest.c.orig 2005-02-28 00:26:01 UTC
+++ src/cputest.c
@@ -31,18 +31,33 @@ static int mm_support(void)
{
#ifdef ARCH_X86
int rval;
+#ifdef __x86_64__
+ int64_t eax, ebx, ecx, edx;
+#else
int eax, ebx, ecx, edx;
+#endif
char vendor[13] = "UnknownVndr";
__asm__ __volatile__ (
/* See if CPUID instruction is supported ... */
/* ... Get copies of EFLAGS into eax and ecx */
- "pushf\n\t"
#ifdef __x86_64__
+ "pushf\n\t"
+ "pop %0\n\t"
+ "mov %0, %1\n\t"
+
+ /* ... Toggle the ID bit in one copy and store */
+ /* to the EFLAGS reg */
+ "xor $0x200000, %0\n\t"
+ "push %0\n\t"
+ "popf\n\t"
+
+ /* ... Get the (hopefully modified) EFLAGS */
+ "pushf\n\t"
"pop %0\n\t"
#else
+ "pushf\n\t"
"popl %0\n\t"
-#endif
"movl %0, %1\n\t"
/* ... Toggle the ID bit in one copy and store */
@@ -53,9 +68,6 @@ static int mm_support(void)
/* ... Get the (hopefully modified) EFLAGS */
"pushf\n\t"
-#ifdef __x86_64__
- "pop %0\n\t"
-#else
"popl %0\n\t"
#endif
: "=a" (eax), "=c" (ecx)