[Buildroot] [PATCHv2] toolchain/gcc: add openmp support option
Gustavo Zacarias
gustavo at zacarias.com.ar
Mon May 2 18:16:41 UTC 2011
Add OpenMP support in gcc as an option instead of dynamically enabling
it when threads are present.
Also fix it up since we never installed libgomp to the target or staging
thus it was never really functional.
Signed-off-by: Gustavo Zacarias <gustavo at zacarias.com.ar>
---
toolchain/gcc/Config.in | 6 ++++++
toolchain/gcc/gcc-uclibc-4.x.mk | 17 ++++++++++++++++-
2 files changed, 22 insertions(+), 1 deletions(-)
diff --git a/toolchain/gcc/Config.in b/toolchain/gcc/Config.in
index fcdcc19..437b86b 100644
--- a/toolchain/gcc/Config.in
+++ b/toolchain/gcc/Config.in
@@ -109,3 +109,9 @@ config BR2_GCC_ENABLE_TLS
help
Enable the compiler to generate code for accessing
thread local storage variables
+
+config BR2_GCC_ENABLE_OPENMP
+ bool "Enable compiler OpenMP support"
+ depends on !BR2_PTHREADS_NONE && !BR2_avr32
+ help
+ Enable OpenMP support for the compiler
diff --git a/toolchain/gcc/gcc-uclibc-4.x.mk b/toolchain/gcc/gcc-uclibc-4.x.mk
index 568aa1a..9b8bf68 100644
--- a/toolchain/gcc/gcc-uclibc-4.x.mk
+++ b/toolchain/gcc/gcc-uclibc-4.x.mk
@@ -147,6 +147,12 @@ else
GCC_SHARED_LIBGCC:=--disable-shared
endif
+ifeq ($(BR2_GCC_ENABLE_OPENMP),y)
+GCC_ENABLE_OPENMP:=--enable-libgomp
+else
+GCC_ENABLE_OPENMP:=--disable-libgomp
+endif
+
ifeq ($(BR2_GCC_ENABLE_TLS),y)
GCC_TLS:=--enable-tls
else
@@ -154,7 +160,7 @@ GCC_TLS:=--disable-tls
endif
ifeq ($(BR2_PTHREADS_NONE),y)
-THREADS:=--disable-threads --disable-libgomp
+THREADS:=--disable-threads
else
THREADS:=--enable-threads
endif
@@ -234,6 +240,7 @@ $(GCC_BUILD_DIR1)/.configured: $(GCC_DIR)/.patched
--disable-__cxa_atexit \
$(GCC_OPTSPACE) \
$(GCC_QUADMATH) \
+ $(GCC_ENABLE_OPENMP) \
--with-gnu-ld \
--disable-shared \
--disable-libssp \
@@ -301,6 +308,7 @@ $(GCC_BUILD_DIR2)/.configured: $(GCC_DIR)/.patched
--disable-__cxa_atexit \
$(GCC_OPTSPACE) \
$(GCC_QUADMATH) \
+ $(GCC_ENABLE_OPENMP) \
--with-gnu-ld \
--enable-shared \
--disable-libssp \
@@ -379,6 +387,7 @@ $(GCC_BUILD_DIR3)/.configured: $(GCC_SRC_DIR)/.patched $(GCC_STAGING_PREREQ)
--disable-__cxa_atexit \
$(GCC_OPTSPACE) \
$(GCC_QUADMATH) \
+ $(GCC_ENABLE_OPENMP) \
--with-gnu-ld \
--disable-libssp \
--disable-multilib \
@@ -470,6 +479,11 @@ ifeq ($(BR2_INSTALL_LIBGCJ),y)
$(TARGET_DIR)/usr/lib/security/
-$(STRIPCMD) $(STRIP_STRIP_UNNEEDED) $(TARGET_DIR)/usr/lib/libgcj.so*
endif
+ifeq ($(BR2_GCC_ENABLE_OPENMP),y)
+ cp -dpf $(HOST_DIR)/usr/$(REAL_GNU_TARGET_NAME)/lib*/libgomp.so* $(STAGING_DIR)/usr/lib/
+ cp -dpf $(HOST_DIR)/usr/$(REAL_GNU_TARGET_NAME)/lib*/libgomp.so* $(TARGET_DIR)/usr/lib/
+ -$(STRIPCMD) $(STRIP_STRIP_UNNEEDED) $(TARGET_DIR)/usr/lib/libgomp.so*
+endif
mkdir -p $(@D)
touch $@
@@ -523,6 +537,7 @@ $(GCC_BUILD_DIR4)/.configured: $(GCC_BUILD_DIR4)/.prepared
--disable-__cxa_atexit \
$(GCC_OPTSPACE) \
$(GCC_QUADMATH) \
+ $(GCC_ENABLE_OPENMP) \
--with-gnu-ld \
--disable-libssp \
--disable-multilib \
--
1.7.3.4
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