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| author | Ulrich Drepper <drepper@gmail.com> | 2011-12-22 16:28:08 -0500 |
|---|---|---|
| committer | Ulrich Drepper <drepper@gmail.com> | 2011-12-22 16:28:08 -0500 |
| commit | db910efdbdbdde9e7c0a33cb6f6fc9e91672d6f2 (patch) | |
| tree | dce51295e4eb262a3d9b02d8d5210499816de6fc /sysdeps | |
| parent | f311e884ece21af3a7b7ce117c7bd2f0144b5e90 (diff) | |
| download | glibc-db910efdbdbdde9e7c0a33cb6f6fc9e91672d6f2.tar.gz glibc-db910efdbdbdde9e7c0a33cb6f6fc9e91672d6f2.tar.xz glibc-db910efdbdbdde9e7c0a33cb6f6fc9e91672d6f2.zip | |
Also retrieve SSE exceptions in x86-32 fegetexceptflag
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/i386/fpu/fgetexcptflg.c | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/sysdeps/i386/fpu/fgetexcptflg.c b/sysdeps/i386/fpu/fgetexcptflg.c index 5f60511b61..1a0e6df63e 100644 --- a/sysdeps/i386/fpu/fgetexcptflg.c +++ b/sysdeps/i386/fpu/fgetexcptflg.c @@ -1,5 +1,5 @@ /* Store current representation for exceptions. - Copyright (C) 1997,99,2000,01 Free Software Foundation, Inc. + Copyright (C) 1997,99,2000,01,11 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. @@ -19,7 +19,10 @@ 02111-1307 USA. */ #include <fenv.h> -#include <bp-sym.h> +#include <unistd.h> +#include <ldsodefs.h> +#include <dl-procinfo.h> + int __fegetexceptflag (fexcept_t *flagp, int excepts) @@ -31,6 +34,17 @@ __fegetexceptflag (fexcept_t *flagp, int excepts) *flagp = temp & excepts & FE_ALL_EXCEPT; + /* If the CPU supports SSE, we clear the MXCSR as well. */ + if ((GLRO(dl_hwcap) & HWCAP_I386_XMM) != 0) + { + unsigned int sse_exc; + + /* Get the current MXCSR. */ + __asm__ ("stmxcsr %0" : "=m" (*&sse_exc)); + + *flagp |= sse_exc & excepts & FE_ALL_EXCEPT; + } + /* Success. */ return 0; } @@ -38,7 +52,7 @@ __fegetexceptflag (fexcept_t *flagp, int excepts) #include <shlib-compat.h> #if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2) strong_alias (__fegetexceptflag, __old_fegetexceptflag) -compat_symbol (libm, BP_SYM (__old_fegetexceptflag), BP_SYM (fegetexceptflag), GLIBC_2_1); +compat_symbol (libm, __old_fegetexceptflag, fegetexceptflag, GLIBC_2_1); #endif -versioned_symbol (libm, BP_SYM (__fegetexceptflag), BP_SYM (fegetexceptflag), GLIBC_2_2); +versioned_symbol (libm, __fegetexceptflag, fegetexceptflag, GLIBC_2_2); |