Patchwork [v2] gcc: Enable OpenMP compiling and library

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Submitter mike.looijmans@topic.nl
Date Jan. 21, 2013, 8:46 a.m.
Message ID <1358758019-21074-1-git-send-email-mike.looijmans@topic.nl>
Download mbox | patch
Permalink /patch/43023/
State Accepted
Commit 3991c5520e584635d3034f27ce817c453b36fb2d
Headers show

Comments

mike.looijmans@topic.nl - Jan. 21, 2013, 8:46 a.m.
From: MiLo <milo-software@users.sourceforge.net>

Multicore embedded systems are getting more and more common.

Remove "--disable-openmp" from the GCC configuration options and
always build libgomp. This only creates a "bigger" compiler but
has no effect on the compiled binaries that don't use openmp.

Tested a clean build on mips32el and arm7a, no problems encountered.

Autoconf will not detect OpenMP after this change, because it will
build and run a target binary on the build system. In order to use
OpenMP, the variable ac_cv_prog_c_openmp=-fopenmp must be set.
---
 meta/recipes-devtools/gcc/gcc-4.7.inc              |    1 -
 .../recipes-devtools/gcc/gcc-configure-runtime.inc |    4 +---
 2 files changed, 1 insertions(+), 4 deletions(-)

Patch

diff --git a/meta/recipes-devtools/gcc/gcc-4.7.inc b/meta/recipes-devtools/gcc/gcc-4.7.inc
index 08a0103..2548f84 100644
--- a/meta/recipes-devtools/gcc/gcc-4.7.inc
+++ b/meta/recipes-devtools/gcc/gcc-4.7.inc
@@ -88,7 +88,6 @@  JAVA = ""
 EXTRA_OECONF_BASE = " --enable-lto \
 			--enable-libssp \
 			--disable-bootstrap \
-			--disable-libgomp \
 			--disable-libmudflap \
 			--with-system-zlib \
 			--with-linker-hash-style=${LINKER_HASH_STYLE} \
diff --git a/meta/recipes-devtools/gcc/gcc-configure-runtime.inc b/meta/recipes-devtools/gcc/gcc-configure-runtime.inc
index d40383c..1c9155f 100644
--- a/meta/recipes-devtools/gcc/gcc-configure-runtime.inc
+++ b/meta/recipes-devtools/gcc/gcc-configure-runtime.inc
@@ -7,9 +7,7 @@  EXTRA_OECONF_PATHS = " \
     --with-sysroot=${STAGING_DIR_TARGET} \
     --with-build-sysroot=${STAGING_DIR_TARGET}"
 
-RUNTIMETARGET = "libssp libstdc++-v3"
-RUNTIMETARGET_append_powerpc = " libgomp"
-RUNTIMETARGET_append_powerpc64 = " libgomp"
+RUNTIMETARGET = "libssp libstdc++-v3 libgomp"
 #  ?
 # libiberty
 # libmudflap