buildroot

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;