Use asm volatile

kimwalisch · Jun 21, 2024 · 72e1ed6 · 72e1ed6
1 parent 2bec034
commit 72e1ed6
Showing 1 changed file with 13 additions and 13 deletions.
diff --git a/src/arch/x86/cpuid.cpp b/src/arch/x86/cpuid.cpp
@@ -44,19 +44,19 @@ void run_cpuid(int eax, int ecx, int* abcd)
   #if defined(__i386__) && \
       defined(__PIC__)
     // In case of PIC under 32-bit EBX cannot be clobbered
-    __asm__ ("movl %%ebx, %%edi;"
-             "cpuid;"
-             "xchgl %%ebx, %%edi;"
-             : "+a" (eax),
-               "=D" (ebx),
-               "+c" (ecx),
-               "=d" (edx));
+    asm volatile("movl %%ebx, %%edi;"
+                 "cpuid;"
+                 "xchgl %%ebx, %%edi;"
+                 : "+a" (eax),
+                   "=D" (ebx),
+                   "+c" (ecx),
+                   "=d" (edx));
   #else
-    __asm__ ("cpuid"
-             : "+a" (eax),
-               "+b" (ebx),
-               "+c" (ecx),
-               "=d" (edx));
+    asm volatile("cpuid"
+                 : "+a" (eax),
+                   "+b" (ebx),
+                   "+c" (ecx),
+                   "=d" (edx));
   #endif
 
   abcd[0] = eax;
@@ -82,7 +82,7 @@ uint64_t get_xcr0()
   uint32_t eax;
   uint32_t edx;
 
-  __asm__ ("xgetbv" : "=a"(eax), "=d"(edx) : "c"(0));
+  asm volatile("xgetbv" : "=a"(eax), "=d"(edx) : "c"(0));
   return eax | (uint64_t(edx) << 32);
 #endif
 }