From 977a30801f61b7bbc27e8f185c1e7eb49675c60c Mon Sep 17 00:00:00 2001 From: Andrew Senkevich Date: Fri, 27 Nov 2015 16:22:26 +0300 Subject: Better workaround for aliases of *_finite symbols in vector math library. Old workaround based on assembly aliases can lead to link fail (bug 19058). This patch makes workaround in another way to avoid it. [BZ #19058] * math/Makefile ($(inst_libdir)/libm.so): Added libmvec_nonshared.a to AS_NEEDED. * sysdeps/x86/fpu/bits/math-vector.h: Removed code with old workaround. * sysdeps/x86_64/fpu/Makefile (libmvec-support, libmvec-static-only-routines): Added new file. * sysdeps/x86_64/fpu/svml_finite_alias.S: New file. --- sysdeps/x86_64/fpu/Makefile | 4 ++- sysdeps/x86_64/fpu/svml_finite_alias.S | 59 ++++++++++++++++++++++++++++++++++ 2 files changed, 62 insertions(+), 1 deletion(-) create mode 100644 sysdeps/x86_64/fpu/svml_finite_alias.S (limited to 'sysdeps/x86_64/fpu') diff --git a/sysdeps/x86_64/fpu/Makefile b/sysdeps/x86_64/fpu/Makefile index f98f6cf3cd..88742faff1 100644 --- a/sysdeps/x86_64/fpu/Makefile +++ b/sysdeps/x86_64/fpu/Makefile @@ -20,7 +20,9 @@ libmvec-support += svml_d_cos2_core svml_d_cos4_core_avx \ svml_d_pow_data svml_s_powf4_core svml_s_powf8_core_avx \ svml_s_powf8_core svml_s_powf16_core svml_s_powf_data \ svml_s_sincosf4_core svml_s_sincosf8_core_avx \ - svml_s_sincosf8_core svml_s_sincosf16_core + svml_s_sincosf8_core svml_s_sincosf16_core svml_finite_alias + +libmvec-static-only-routines = svml_finite_alias endif # Variables for libmvec tests. diff --git a/sysdeps/x86_64/fpu/svml_finite_alias.S b/sysdeps/x86_64/fpu/svml_finite_alias.S new file mode 100644 index 0000000000..f8bcfeb550 --- /dev/null +++ b/sysdeps/x86_64/fpu/svml_finite_alias.S @@ -0,0 +1,59 @@ +/* These aliases added as workaround to exclude unnecessary symbol + aliases in libmvec.so while compiler creates the vector names + based on scalar asm name. Corresponding discussion is at + . + Copyright (C) 2015 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#include + +#define ALIAS_IMPL(alias, target) \ +ENTRY (alias); \ + call target; \ + ret; \ +END (alias) + + .text +ALIAS_IMPL (_ZGVbN2v___log_finite, _ZGVbN2v_log) +ALIAS_IMPL (_ZGVcN4v___log_finite, _ZGVcN4v_log) +ALIAS_IMPL (_ZGVdN4v___log_finite, _ZGVdN4v_log) +ALIAS_IMPL (_ZGVeN8v___log_finite, _ZGVeN8v_log) + +ALIAS_IMPL (_ZGVbN4v___logf_finite, _ZGVbN4v_logf) +ALIAS_IMPL (_ZGVcN8v___logf_finite, _ZGVcN8v_logf) +ALIAS_IMPL (_ZGVdN8v___logf_finite, _ZGVdN8v_logf) +ALIAS_IMPL (_ZGVeN16v___logf_finite, _ZGVeN16v_logf) + +ALIAS_IMPL (_ZGVbN2v___exp_finite, _ZGVbN2v_exp) +ALIAS_IMPL (_ZGVcN4v___exp_finite, _ZGVcN4v_exp) +ALIAS_IMPL (_ZGVdN4v___exp_finite, _ZGVdN4v_exp) +ALIAS_IMPL (_ZGVeN8v___exp_finite, _ZGVeN8v_exp) + +ALIAS_IMPL (_ZGVbN4v___expf_finite, _ZGVbN4v_expf) +ALIAS_IMPL (_ZGVcN8v___expf_finite, _ZGVcN8v_expf) +ALIAS_IMPL (_ZGVdN8v___expf_finite, _ZGVdN8v_expf) +ALIAS_IMPL (_ZGVeN16v___expf_finite, _ZGVeN16v_expf) + +ALIAS_IMPL (_ZGVbN2vv___pow_finite, _ZGVbN2vv_pow) +ALIAS_IMPL (_ZGVcN4vv___pow_finite, _ZGVcN4vv_pow) +ALIAS_IMPL (_ZGVdN4vv___pow_finite, _ZGVdN4vv_pow) +ALIAS_IMPL (_ZGVeN8vv___pow_finite, _ZGVeN8vv_pow) + +ALIAS_IMPL (_ZGVbN4vv___powf_finite, _ZGVbN4vv_powf) +ALIAS_IMPL (_ZGVcN8vv___powf_finite, _ZGVcN8vv_powf) +ALIAS_IMPL (_ZGVdN8vv___powf_finite, _ZGVdN8vv_powf) +ALIAS_IMPL (_ZGVeN16vv___powf_finite, _ZGVeN16vv_powf) -- cgit v1.2.3