[PATCH v2] gcc: Enable OpenMP compiling and library

mike.looijmans
2013-01-21T09:02:33Z

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(-)

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
--
1.7.5.4