From cd42798aef204592b0165bcfacef975ff3ce2973 Mon Sep 17 00:00:00 2001 From: Joseph Myers Date: Tue, 6 Jan 2015 23:36:20 +0000 Subject: 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. --- sysdeps/powerpc/nofpu/fesetenv.c | 1 + sysdeps/powerpc/nofpu/feupdateenv.c | 2 +- 2 files changed, 2 insertions(+), 1 deletion(-) (limited to 'sysdeps/powerpc/nofpu') diff --git a/sysdeps/powerpc/nofpu/fesetenv.c b/sysdeps/powerpc/nofpu/fesetenv.c index e9ffb62..0385d21 100644 --- a/sysdeps/powerpc/nofpu/fesetenv.c +++ b/sysdeps/powerpc/nofpu/fesetenv.c @@ -42,5 +42,6 @@ strong_alias (__fesetenv, __old_fesetenv) compat_symbol (libm, __old_fesetenv, fesetenv, GLIBC_2_1); #endif +libm_hidden_def (__fesetenv) libm_hidden_ver (__fesetenv, fesetenv) versioned_symbol (libm, __fesetenv, fesetenv, GLIBC_2_2); diff --git a/sysdeps/powerpc/nofpu/feupdateenv.c b/sysdeps/powerpc/nofpu/feupdateenv.c index 3afe548..892e463 100644 --- a/sysdeps/powerpc/nofpu/feupdateenv.c +++ b/sysdeps/powerpc/nofpu/feupdateenv.c @@ -31,7 +31,7 @@ __feupdateenv (const fenv_t *envp) saved_exceptions = __sim_exceptions_thread; /* Set environment. */ - fesetenv (envp); + __fesetenv (envp); /* Raise old exceptions. */ __sim_exceptions_thread |= saved_exceptions; -- cgit v1.1