0002-fix-cpuid-x86.patch
1.98 KB
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Fix build issue caused by invalid register usage on x86
Patch taken from https://github.com/openexr/openexr/issues/128.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Index: b/Source/OpenEXR/IlmImf/ImfSystemSpecific.cpp
===================================================================
--- a/Source/OpenEXR/IlmImf/ImfSystemSpecific.cpp
+++ b/Source/OpenEXR/IlmImf/ImfSystemSpecific.cpp
@@ -40,21 +40,19 @@
namespace {
#if defined(IMF_HAVE_SSE2) && defined(__GNUC__)
-
+#include <cpuid.h>
// Helper functions for gcc + SSE enabled
- void cpuid(int n, int &eax, int &ebx, int &ecx, int &edx)
+ void cpuid(unsigned int n, unsigned int &eax, unsigned int &ebx,
+ unsigned int &ecx, unsigned int &edx)
{
- __asm__ __volatile__ (
- "cpuid"
- : /* Output */ "=a"(eax), "=b"(ebx), "=c"(ecx), "=d"(edx)
- : /* Input */ "a"(n)
- : /* Clobber */);
+ __get_cpuid(n, &eax, &ebx, &ecx, &edx);
}
#else // IMF_HAVE_SSE2 && __GNUC__
// Helper functions for generic compiler - all disabled
- void cpuid(int n, int &eax, int &ebx, int &ecx, int &edx)
+ void cpuid(unsigned int n, unsigned int &eax, unsigned int &ebx,
+ unsigned int &ecx, unsigned int &edx)
{
eax = ebx = ecx = edx = 0;
}
@@ -64,7 +62,7 @@
#ifdef OPENEXR_IMF_HAVE_GCC_INLINE_ASM_AVX
- void xgetbv(int n, int &eax, int &edx)
+ void xgetbv(unsigned int n, unsigned int &eax, unsigned int &edx)
{
__asm__ __volatile__ (
"xgetbv"
@@ -75,7 +73,7 @@
#else // OPENEXR_IMF_HAVE_GCC_INLINE_ASM_AVX
- void xgetbv(int n, int &eax, int &edx)
+ void xgetbv(unsigned int n, unsigned int &eax, unsigned int &edx)
{
eax = edx = 0;
}
@@ -94,8 +92,8 @@
f16c(false)
{
bool osxsave = false;
- int max = 0;
- int eax, ebx, ecx, edx;
+ unsigned int max = 0;
+ unsigned int eax, ebx, ecx, edx;
cpuid(0, max, ebx, ecx, edx);
if (max > 0)