diff options
Diffstat (limited to 'meta/recipes-core/eglibc/eglibc-2.15/x86_fenv.patch')
-rw-r--r-- | meta/recipes-core/eglibc/eglibc-2.15/x86_fenv.patch | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/meta/recipes-core/eglibc/eglibc-2.15/x86_fenv.patch b/meta/recipes-core/eglibc/eglibc-2.15/x86_fenv.patch new file mode 100644 index 0000000000..40c1c4d67e --- /dev/null +++ b/meta/recipes-core/eglibc/eglibc-2.15/x86_fenv.patch | |||
@@ -0,0 +1,29 @@ | |||
1 | --- a/sysdeps/x86_64/fpu/bits/fenv.h | ||
2 | +++ b/sysdeps/x86_64/fpu/bits/fenv.h | ||
3 | @@ -112,16 +112,24 @@ __NTH (feraiseexcept (int __excepts)) | ||
4 | { | ||
5 | /* One example of a invalid operation is 0.0 / 0.0. */ | ||
6 | float __f = 0.0; | ||
7 | - | ||
8 | +# if defined __SSE_MATH__ || __WORDSIZE == 64 | ||
9 | __asm__ __volatile__ ("divss %0, %0 " : : "x" (__f)); | ||
10 | +# else | ||
11 | + __asm__ __volatile__ ("fdiv %%st, %%st(0); fwait" | ||
12 | + : "=t" (__f) : "0" (__f)); | ||
13 | +# endif | ||
14 | (void) &__f; | ||
15 | } | ||
16 | if ((FE_DIVBYZERO & __excepts) != 0) | ||
17 | { | ||
18 | float __f = 1.0; | ||
19 | float __g = 0.0; | ||
20 | - | ||
21 | +# if defined __SSE_MATH__ || __WORDSIZE == 64 | ||
22 | __asm__ __volatile__ ("divss %1, %0" : : "x" (__f), "x" (__g)); | ||
23 | +# else | ||
24 | + __asm__ __volatile__ ("fdivp %%st(1), %%st; fwait" | ||
25 | + : "=t" (__f) : "0" (__f), "u" (__g) : "st(1)"); | ||
26 | +# endif | ||
27 | (void) &__f; | ||
28 | } | ||
29 | |||