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authorJoseph Myers <joseph@codesourcery.com>2015-01-06 23:36:20 +0000
committerJoseph Myers <joseph@codesourcery.com>2015-01-06 23:36:20 +0000
commitcd42798aef204592b0165bcfacef975ff3ce2973 (patch)
tree24fe686b4bdc0d9fa774d4dea971a33c37b476f5 /sysdeps/hppa
parent500bfbd4922902ea278adab06e58b77eb355ba82 (diff)
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Fix libm fesetenv namespace (bug 17748).
Continuing the fixes for C90 libm functions calling C99 fe* functions, this patch fixes the case of fesetenv by making it a weak alias of __fesetenv and making the affected code (including various copies of feupdateenv which also gets called from C90 functions) call __fesetenv. Tested for x86_64 (testsuite, and that disassembly of installed shared libraries is unchanged by the patch). Also tested for ARM (soft-float) that fesetenv failures disappear from the linknamespace test results (fsetround and feupdateenv remain to be addressed to complete fixing bug 17748). [BZ #17748] * include/fenv.h (__fesetenv): Use libm_hidden_proto. * math/fesetenv.c (__fesetenv): Use libm_hidden_def. * sysdeps/aarch64/fpu/fesetenv.c (fesetenv): Rename to __fesetenv and define as weak alias of __fesetenv. Use libm_hidden_weak. * sysdeps/alpha/fpu/fesetenv.c (__fesetenv): Use libm_hidden_def. * sysdeps/arm/fesetenv.c (fesetenv): Rename to __fesetenv and define as weak alias of __fesetenv. Use libm_hidden_weak. * sysdeps/hppa/fpu/fesetenv.c (fesetenv): Likewise. * sysdeps/i386/fpu/fesetenv.c (__fesetenv): Use libm_hidden_def. * sysdeps/ia64/fpu/fesetenv.c (fesetenv): Rename to __fesetenv and define as weak alias of __fesetenv. Use libm_hidden_weak. * sysdeps/m68k/fpu/fesetenv.c (__fesetenv): Use libm_hidden_def. * sysdeps/mips/fpu/fesetenv.c (fesetenv): Rename to __fesetenv and define as weak alias of __fesetenv. Use libm_hidden_weak. * sysdeps/powerpc/fpu/fesetenv.c (__fesetenv): Use libm_hidden_def. * sysdeps/powerpc/nofpu/fesetenv.c (__fesetenv): Likewise. * sysdeps/powerpc/powerpc32/e500/nofpu/fesetenv.c (__fesetenv): Likewise. * sysdeps/s390/fpu/fesetenv.c (fesetenv): Rename to __fesetenv and define as weak alias of __fesetenv. Use libm_hidden_weak. * sysdeps/sh/sh4/fpu/fesetenv.c (fesetenv): Likewise. * sysdeps/sparc/fpu/fesetenv.c (__fesetenv): Use libm_hidden_def. * sysdeps/tile/math_private.h (__fesetenv): New inline function. * sysdeps/x86_64/fpu/fesetenv.c (fesetenv): Rename to __fesetenv and define as weak alias of __fesetenv. Use libm_hidden_weak. * sysdeps/generic/math_private.h (default_libc_fesetenv): Use __fesetenv instead of fesetenv. (libc_feresetround_noex_ctx): Likewise. * sysdeps/alpha/fpu/feupdateenv.c (__feupdateenv): Likewise. * sysdeps/hppa/fpu/feupdateenv.c (feupdateenv): Likewise. * sysdeps/i386/fpu/feupdateenv.c (__feupdateenv): Likewise. * sysdeps/ia64/fpu/feupdateenv.c (feupdateenv): Likewise. * sysdeps/m68k/fpu/feupdateenv.c (__feupdateenv): Likewise. * sysdeps/mips/fpu/feupdateenv.c (feupdateenv): Likewise. * sysdeps/powerpc/nofpu/feupdateenv.c (__feupdateenv): Likewise. * sysdeps/powerpc/powerpc32/e500/nofpu/feupdateenv.c (__feupdateenv): Likewise. * sysdeps/s390/fpu/feupdateenv.c (feupdateenv): Likewise. * sysdeps/sh/sh4/fpu/feupdateenv.c (feupdateenv): Likewise. * sysdeps/sparc/fpu/feupdateenv.c (__feupdateenv): Likewise. * sysdeps/x86_64/fpu/feupdateenv.c (__feupdateenv): Likewise.
Diffstat (limited to 'sysdeps/hppa')
-rw-r--r--sysdeps/hppa/fpu/fesetenv.c6
-rw-r--r--sysdeps/hppa/fpu/feupdateenv.c2
2 files changed, 5 insertions, 3 deletions
diff --git a/sysdeps/hppa/fpu/fesetenv.c b/sysdeps/hppa/fpu/fesetenv.c
index 2d28446..5b33ad6 100644
--- a/sysdeps/hppa/fpu/fesetenv.c
+++ b/sysdeps/hppa/fpu/fesetenv.c
@@ -22,7 +22,7 @@
#include <fenv.h>
int
-fesetenv (const fenv_t *envp)
+__fesetenv (const fenv_t *envp)
{
union { unsigned long long buf[4]; fenv_t env; } temp;
unsigned long long *bufptr;
@@ -60,4 +60,6 @@ fesetenv (const fenv_t *envp)
/* Success. */
return 0;
}
-libm_hidden_def (fesetenv)
+libm_hidden_def (__fesetenv)
+weak_alias (__fesetenv, fesetenv)
+libm_hidden_weak (fesetenv)
diff --git a/sysdeps/hppa/fpu/feupdateenv.c b/sysdeps/hppa/fpu/feupdateenv.c
index 60c0f11..e6a07c3 100644
--- a/sysdeps/hppa/fpu/feupdateenv.c
+++ b/sysdeps/hppa/fpu/feupdateenv.c
@@ -33,7 +33,7 @@ feupdateenv (const fenv_t *envp)
/* Currently raised exceptions not cleared */
temp.__status_word |= s.sw[0] & (FE_ALL_EXCEPT << 27);
/* Install new environment. */
- fesetenv (&temp);
+ __fesetenv (&temp);
/* Success. */
return 0;
}