diff options
Diffstat (limited to 'gr-fcd/config/gr_set_md_cpu.m4')
| -rw-r--r-- | gr-fcd/config/gr_set_md_cpu.m4 | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/gr-fcd/config/gr_set_md_cpu.m4 b/gr-fcd/config/gr_set_md_cpu.m4 new file mode 100644 index 000000000..cb5fb5aac --- /dev/null +++ b/gr-fcd/config/gr_set_md_cpu.m4 @@ -0,0 +1,115 @@ +dnl +dnl Copyright 2003,2008,2009 Free Software Foundation, Inc. +dnl +dnl This file is part of GNU Radio +dnl +dnl GNU Radio is free software; you can redistribute it and/or modify +dnl it under the terms of the GNU General Public License as published by +dnl the Free Software Foundation; either version 3, or (at your option) +dnl any later version. +dnl +dnl GNU Radio is distributed in the hope that it will be useful, +dnl but WITHOUT ANY WARRANTY; without even the implied warranty of +dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +dnl GNU General Public License for more details. +dnl +dnl You should have received a copy of the GNU General Public License +dnl along with GNU Radio; see the file COPYING. If not, write to +dnl the Free Software Foundation, Inc., 51 Franklin Street, +dnl Boston, MA 02110-1301, USA. +dnl + +AC_DEFUN([_TRY_ADD_ALTIVEC], +[ + LF_CHECK_CC_FLAG([-mabi=altivec -maltivec]) + LF_CHECK_CXX_FLAG([-mabi=altivec -maltivec]) +]) + +AC_DEFUN([_FIND_ARM_ISA], +[ + AC_COMPILE_IFELSE([AC_LANG_PROGRAM( + [[#ifndef __ARM_ARCH_5__ + #error "Not armv5" + #endif + ]])], + [is_armv5=yes], + [is_armv5=no]) + + AC_COMPILE_IFELSE([AC_LANG_PROGRAM( + [[#ifndef __ARM_ARCH_7A__ + #error "Not armv7-a" + #endif + ]])], + [is_armv7_a=yes], + [is_armv7_a=no]) + +]) + +AC_DEFUN([GR_SET_MD_CPU],[ + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_ARG_WITH(md-cpu, + AC_HELP_STRING([--with-md-cpu=ARCH],[set machine dependent speedups (auto)]), + [cf_with_md_cpu="$withval"], + [ + dnl see if the user has specified --host or --build, via 'cross_compiling' + if test "$cross_compiling" != no; then + dnl when cross-compiling, because the user specified it either via + dnl --target or --build, just keep the user's specs & hope for the best. + cf_with_md_cpu="$host_cpu" + else + dnl when the user didn't specify --target or --build, on Darwin 10 + dnl (OSX 10.6.0 and .1) and GNU libtoool 2.2.6, 'configure' doesn't + dnl figure out the CPU type correctly, so do it by hand here using + dnl the sizeof (void*): if 4 then use i386, and otherwise use x86_64. + case "$host_os" in + *darwin*10*) + AC_CHECK_SIZEOF(void*) + if test "$ac_cv_sizeof_voidp" = 4; then + cf_with_md_cpu="i386" + else + cf_with_md_cpu="x86_64" + fi + ;; + *) + cf_with_md_cpu="$host_cpu" + ;; + esac + fi + ]) + case "$cf_with_md_cpu" in + x86 | i[[3-7]]86) MD_CPU=x86 MD_SUBCPU=x86 ;; + x86_64) MD_CPU=x86 MD_SUBCPU=x86_64 ;; + powerpc*) MD_CPU=powerpc ;; + arm*) + _FIND_ARM_ISA + if test $is_armv5 = yes; then MD_CPU=armv5; + elif test $is_armv7_a = yes; then MD_CPU=armv7_a; + else MD_CPU=generic; fi + ;; + *) MD_CPU=generic ;; + esac + + AC_ARG_ENABLE(altivec, + AC_HELP_STRING([--enable-altivec],[enable altivec on PowerPC (yes)]), + [ if test $MD_CPU = powerpc; then + case "$enableval" in + (no) MD_CPU=generic ;; + (yes) _TRY_ADD_ALTIVEC ;; + (*) AC_MSG_ERROR([Invalid argument ($enableval) to --enable-altivec]) ;; + esac + fi], + [ if test $MD_CPU = powerpc; then _TRY_ADD_ALTIVEC fi]) + + + AC_MSG_CHECKING([for machine dependent speedups]) + AC_MSG_RESULT($MD_CPU) + AC_SUBST(MD_CPU) + AC_SUBST(MD_SUBCPU) + + AM_CONDITIONAL(MD_CPU_x86, test "$MD_CPU" = "x86") + AM_CONDITIONAL(MD_SUBCPU_x86_64, test "$MD_SUBCPU" = "x86_64") + AM_CONDITIONAL(MD_CPU_powerpc, test "$MD_CPU" = "powerpc") + AM_CONDITIONAL(MD_CPU_armv5, test "$MD_CPU" = "armv5") + AM_CONDITIONAL(MD_CPU_armv7_a, test "$MD_CPU" = "armv7_a") + AM_CONDITIONAL(MD_CPU_generic, test "$MD_CPU" = "generic") +]) |