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| author | Johnathan Corgan <jcorgan@corganenterprises.com> | 2009-11-03 08:29:52 -0800 |
|---|---|---|
| committer | Johnathan Corgan <jcorgan@corganenterprises.com> | 2009-11-03 08:29:52 -0800 |
| commit | 099dad679e232cb0f2b3ed61e085837310e69c92 (patch) | |
| tree | a0c3ffeea5c8878651f48434ab14ac44898ca6f2 /gr-howto-write-a-block/config/gr_set_md_cpu.m4 | |
| parent | 7841f422c35ba4c67ce47587d82b0ced8692444f (diff) | |
howto: update m4 files to match latest master
Diffstat (limited to 'gr-howto-write-a-block/config/gr_set_md_cpu.m4')
| -rw-r--r-- | gr-howto-write-a-block/config/gr_set_md_cpu.m4 | 81 |
1 files changed, 76 insertions, 5 deletions
diff --git a/gr-howto-write-a-block/config/gr_set_md_cpu.m4 b/gr-howto-write-a-block/config/gr_set_md_cpu.m4 index b9c570eded..7ebf88a664 100644 --- a/gr-howto-write-a-block/config/gr_set_md_cpu.m4 +++ b/gr-howto-write-a-block/config/gr_set_md_cpu.m4 @@ -1,5 +1,5 @@ dnl -dnl Copyright 2003,2008 Free Software Foundation, Inc. +dnl Copyright 2003,2008,2009 Free Software Foundation, Inc. dnl dnl This file is part of GNU Radio dnl @@ -19,20 +19,89 @@ 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, - [ --with-md-cpu=ARCH set machine dependent speedups (auto)], + AC_HELP_STRING([--with-md-cpu=ARCH],[set machine dependent speedups (auto)]), [cf_with_md_cpu="$withval"], - [cf_with_md_cpu="$host_cpu"]) - - AC_MSG_CHECKING([for machine dependent speedups]) + [ + 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) @@ -40,5 +109,7 @@ AC_DEFUN([GR_SET_MD_CPU],[ 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") ]) |