diff options
| author |   Khem Raj <raj.khem@gmail.com> | 2012-09-11 16:38:20 -0700 |
|---|---|---|
| committer |   Saul Wold <sgw@linux.intel.com> | 2012-09-18 07:44:13 -0700 |
| commit | f06097f4581e4c728c2950a86e025384e4bdcdf0 (patch) | |
| tree | 1689bf6bcb97d0fb8868701a873e15caaf489b6e /meta/recipes-core/eglibc/eglibc-2.16 | |
| parent | 76f3a1979ea166238e26a2569fb06a4a403bd864 (diff) | |
| download | openembedded-core-contrib-f06097f4581e4c728c2950a86e025384e4bdcdf0.tar.gz | |
eglibc: Do not use fsqrt in libm when building for fsl ppc with fpu
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Diffstat (limited to 'meta/recipes-core/eglibc/eglibc-2.16')
| -rw-r--r-- | meta/recipes-core/eglibc/eglibc-2.16/fsl-ppc-no-fsqrt.patch | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/meta/recipes-core/eglibc/eglibc-2.16/fsl-ppc-no-fsqrt.patch b/meta/recipes-core/eglibc/eglibc-2.16/fsl-ppc-no-fsqrt.patch new file mode 100644 index 0000000000..712b3538e8 --- /dev/null +++ b/meta/recipes-core/eglibc/eglibc-2.16/fsl-ppc-no-fsqrt.patch @@ -0,0 +1,44 @@ +Create e5500 specific math_private.h and let it include when compiling for e5500/64bit core +We prefefine __CPU_HAS_FSQRT to 0 and then in general ppc64 math_private.h we check if its +already defined before redefining it. This way we can ensure that on e5500 builds it wont +emit fsqrt intructions + +-Khem + +Upstream-Status: Pending + +Index: libc/sysdeps/powerpc/fpu/math_private.h +=================================================================== +--- libc.orig/sysdeps/powerpc/fpu/math_private.h 2012-09-03 22:37:58.000000000 -0700 ++++ libc/sysdeps/powerpc/fpu/math_private.h 2012-09-17 09:35:09.709124003 -0700 +@@ -25,10 +25,12 @@ + #include <dl-procinfo.h> + #include_next <math_private.h> + +-# if __WORDSIZE == 64 || defined _ARCH_PWR4 +-# define __CPU_HAS_FSQRT 1 +-# else +-# define __CPU_HAS_FSQRT ((GLRO(dl_hwcap) & PPC_FEATURE_64) != 0) ++# ifndef __CPU_HAS_FSQRT ++# if __WORDSIZE == 64 || defined _ARCH_PWR4 ++# define __CPU_HAS_FSQRT 1 ++# else ++# define __CPU_HAS_FSQRT ((GLRO(dl_hwcap) & PPC_FEATURE_64) != 0) ++# endif + # endif + + extern double __slow_ieee754_sqrt (double); +Index: libc/ports/sysdeps/powerpc/powerpc64/e5500/fpu/math_private.h +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ libc/ports/sysdeps/powerpc/powerpc64/e5500/fpu/math_private.h 2012-09-17 09:56:59.129124074 -0700 +@@ -0,0 +1,9 @@ ++#ifndef _E5500_MATH_PRIVATE_H_ ++#define _E5500_MATH_PRIVATE_H_ 1 ++/* E5500 core FPU does not implement ++ fsqrt */ ++ ++#define __CPU_HAS_FSQRT 0 ++#include_next <math_private.h> ++ ++#endif /* _E5500_MATH_PRIVATE_H_ */ |