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Tom Tsou gerrit-no-reply at lists.osmocom.orgTom Tsou has submitted this change and it was merged.
Change subject: buildenv: actually strip unused cpuid functionality
......................................................................
buildenv: actually strip unused cpuid functionality
Despite the macro message says, that cpuid functionality was stripped
it was still partially preset and wasn't used anyhow.
Change-Id: I380bc9c13d29319685781ef27973afe6744fcf3d
---
D config/ax_gcc_x86_avx_xgetbv.m4
D config/ax_gcc_x86_cpuid.m4
M config/ax_sse.m4
3 files changed, 0 insertions(+), 164 deletions(-)
Approvals:
Tom Tsou: Looks good to me, approved
Harald Welte: Looks good to me, but someone else must approve
Jenkins Builder: Verified
diff --git a/config/ax_gcc_x86_avx_xgetbv.m4 b/config/ax_gcc_x86_avx_xgetbv.m4
deleted file mode 100644
index 0624eeb..0000000
--- a/config/ax_gcc_x86_avx_xgetbv.m4
+++ /dev/null
@@ -1,79 +0,0 @@
-# ===========================================================================
-# http://www.gnu.org/software/autoconf-archive/ax_gcc_x86_avx_xgetbv.html
-# ===========================================================================
-#
-# SYNOPSIS
-#
-# AX_GCC_X86_AVX_XGETBV
-#
-# DESCRIPTION
-#
-# On later x86 processors with AVX SIMD support, with gcc or a compiler
-# that has a compatible syntax for inline assembly instructions, run a
-# small program that executes the xgetbv instruction with input OP. This
-# can be used to detect if the OS supports AVX instruction usage.
-#
-# On output, the values of the eax and edx registers are stored as
-# hexadecimal strings as "eax:edx" in the cache variable
-# ax_cv_gcc_x86_avx_xgetbv.
-#
-# If the xgetbv instruction fails (because you are running a
-# cross-compiler, or because you are not using gcc, or because you are on
-# a processor that doesn't have this instruction),
-# ax_cv_gcc_x86_avx_xgetbv_OP is set to the string "unknown".
-#
-# This macro mainly exists to be used in AX_EXT.
-#
-# LICENSE
-#
-# Copyright (c) 2013 Michael Petch <mpetch at capp-sysware.com>
-#
-# This program is free software: you can redistribute it and/or modify it
-# under the terms of the GNU General Public License as published by the
-# Free Software Foundation, either version 3 of the License, or (at your
-# option) any later version.
-#
-# This program 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 General
-# Public License for more details.
-#
-# You should have received a copy of the GNU General Public License along
-# with this program. If not, see <http://www.gnu.org/licenses/>.
-#
-# As a special exception, the respective Autoconf Macro's copyright owner
-# gives unlimited permission to copy, distribute and modify the configure
-# scripts that are the output of Autoconf when processing the Macro. You
-# need not follow the terms of the GNU General Public License when using
-# or distributing such scripts, even though portions of the text of the
-# Macro appear in them. The GNU General Public License (GPL) does govern
-# all other use of the material that constitutes the Autoconf Macro.
-#
-# This special exception to the GPL applies to versions of the Autoconf
-# Macro released by the Autoconf Archive. When you make and distribute a
-# modified version of the Autoconf Macro, you may extend this special
-# exception to the GPL to apply to your modified version as well.
-
-#serial 1
-
-AC_DEFUN([AX_GCC_X86_AVX_XGETBV],
-[AC_REQUIRE([AC_PROG_CC])
-AC_LANG_PUSH([C])
-AC_CACHE_CHECK(for x86-AVX xgetbv $1 output, ax_cv_gcc_x86_avx_xgetbv_$1,
- [AC_RUN_IFELSE([AC_LANG_PROGRAM([#include <stdio.h>], [
- int op = $1, eax, edx;
- FILE *f;
- /* Opcodes for xgetbv */
- __asm__(".byte 0x0f, 0x01, 0xd0"
- : "=a" (eax), "=d" (edx)
- : "c" (op));
- f = fopen("conftest_xgetbv", "w"); if (!f) return 1;
- fprintf(f, "%x:%x\n", eax, edx);
- fclose(f);
- return 0;
-])],
- [ax_cv_gcc_x86_avx_xgetbv_$1=`cat conftest_xgetbv`; rm -f conftest_xgetbv],
- [ax_cv_gcc_x86_avx_xgetbv_$1=unknown; rm -f conftest_xgetbv],
- [ax_cv_gcc_x86_avx_xgetbv_$1=unknown])])
-AC_LANG_POP([C])
-])
diff --git a/config/ax_gcc_x86_cpuid.m4 b/config/ax_gcc_x86_cpuid.m4
deleted file mode 100644
index 7d46fee..0000000
--- a/config/ax_gcc_x86_cpuid.m4
+++ /dev/null
@@ -1,79 +0,0 @@
-# ===========================================================================
-# http://www.gnu.org/software/autoconf-archive/ax_gcc_x86_cpuid.html
-# ===========================================================================
-#
-# SYNOPSIS
-#
-# AX_GCC_X86_CPUID(OP)
-#
-# DESCRIPTION
-#
-# On Pentium and later x86 processors, with gcc or a compiler that has a
-# compatible syntax for inline assembly instructions, run a small program
-# that executes the cpuid instruction with input OP. This can be used to
-# detect the CPU type.
-#
-# On output, the values of the eax, ebx, ecx, and edx registers are stored
-# as hexadecimal strings as "eax:ebx:ecx:edx" in the cache variable
-# ax_cv_gcc_x86_cpuid_OP.
-#
-# If the cpuid instruction fails (because you are running a
-# cross-compiler, or because you are not using gcc, or because you are on
-# a processor that doesn't have this instruction), ax_cv_gcc_x86_cpuid_OP
-# is set to the string "unknown".
-#
-# This macro mainly exists to be used in AX_GCC_ARCHFLAG.
-#
-# LICENSE
-#
-# Copyright (c) 2008 Steven G. Johnson <stevenj at alum.mit.edu>
-# Copyright (c) 2008 Matteo Frigo
-#
-# This program is free software: you can redistribute it and/or modify it
-# under the terms of the GNU General Public License as published by the
-# Free Software Foundation, either version 3 of the License, or (at your
-# option) any later version.
-#
-# This program 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 General
-# Public License for more details.
-#
-# You should have received a copy of the GNU General Public License along
-# with this program. If not, see <http://www.gnu.org/licenses/>.
-#
-# As a special exception, the respective Autoconf Macro's copyright owner
-# gives unlimited permission to copy, distribute and modify the configure
-# scripts that are the output of Autoconf when processing the Macro. You
-# need not follow the terms of the GNU General Public License when using
-# or distributing such scripts, even though portions of the text of the
-# Macro appear in them. The GNU General Public License (GPL) does govern
-# all other use of the material that constitutes the Autoconf Macro.
-#
-# This special exception to the GPL applies to versions of the Autoconf
-# Macro released by the Autoconf Archive. When you make and distribute a
-# modified version of the Autoconf Macro, you may extend this special
-# exception to the GPL to apply to your modified version as well.
-
-#serial 7
-
-AC_DEFUN([AX_GCC_X86_CPUID],
-[AC_REQUIRE([AC_PROG_CC])
-AC_LANG_PUSH([C])
-AC_CACHE_CHECK(for x86 cpuid $1 output, ax_cv_gcc_x86_cpuid_$1,
- [AC_RUN_IFELSE([AC_LANG_PROGRAM([#include <stdio.h>], [
- int op = $1, eax, ebx, ecx, edx;
- FILE *f;
- __asm__("cpuid"
- : "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx)
- : "a" (op));
- f = fopen("conftest_cpuid", "w"); if (!f) return 1;
- fprintf(f, "%x:%x:%x:%x\n", eax, ebx, ecx, edx);
- fclose(f);
- return 0;
-])],
- [ax_cv_gcc_x86_cpuid_$1=`cat conftest_cpuid`; rm -f conftest_cpuid],
- [ax_cv_gcc_x86_cpuid_$1=unknown; rm -f conftest_cpuid],
- [ax_cv_gcc_x86_cpuid_$1=unknown])])
-AC_LANG_POP([C])
-])
diff --git a/config/ax_sse.m4 b/config/ax_sse.m4
index cf363a4..5c4e321 100644
--- a/config/ax_sse.m4
+++ b/config/ax_sse.m4
@@ -42,12 +42,6 @@
case $host_cpu in
i[[3456]]86*|x86_64*|amd64*)
-
- AC_REQUIRE([AX_GCC_X86_CPUID])
- AC_REQUIRE([AX_GCC_X86_AVX_XGETBV])
-
- AX_GCC_X86_CPUID(0x00000001)
-
AX_CHECK_COMPILE_FLAG(-msse3, ax_cv_support_sse3_ext=yes, [])
if test x"$ax_cv_support_sse3_ext" = x"yes"; then
SIMD_FLAGS="$SIMD_FLAGS -msse3"
--
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Gerrit-MessageType: merged
Gerrit-Change-Id: I380bc9c13d29319685781ef27973afe6744fcf3d
Gerrit-PatchSet: 2
Gerrit-Project: osmo-trx
Gerrit-Branch: master
Gerrit-Owner: Vadim Yanitskiy <axilirator at gmail.com>
Gerrit-Reviewer: Harald Welte <laforge at gnumonks.org>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: Tom Tsou <tom at tsou.cc>