toolchain: Add support for --with-cpu

Add support for gcc configuration switch --with-cpu. Uses newly added
BR2_GCC_TARGET_CPU from the target config.

Signed-off-by: Konrad Eisele <konrad@gaisler.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

toolchain/gcc/Makefile.in

@@ -37,6 +37,9 @@ endif
 ifneq ($(call qstrip,$(BR2_GCC_TARGET_ABI)),)
 GCC_WITH_ABI:=--with-abi=$(BR2_GCC_TARGET_ABI)
 endif
+ifneq ($(call qstrip,$(BR2_GCC_TARGET_CPU)),)
+GCC_WITH_CPU:=--with-cpu=$(BR2_GCC_TARGET_CPU)
+endif
 
 # AVR32 GCC configuration
 ifeq ($(BR2_avr32),y)

toolchain/gcc/gcc-uclibc-4.x.mk

@@ -229,7 +229,7 @@ $(GCC_BUILD_DIR1)/.configured: $(GCC_DIR)/.patched
 		$(THREADS) \
 		$(GCC_DECIMAL_FLOAT) \
 		$(SOFT_FLOAT_CONFIG_OPTION) \
-		$(GCC_WITH_ABI) $(GCC_WITH_ARCH) $(GCC_WITH_TUNE) \
+		$(GCC_WITH_ABI) $(GCC_WITH_ARCH) $(GCC_WITH_TUNE) $(GCC_WITH_CPU) \
 		$(EXTRA_GCC_CONFIG_OPTIONS) \
 		$(EXTRA_GCC1_CONFIG_OPTIONS) \
 		$(QUIET) \
@@ -306,7 +306,7 @@ $(GCC_BUILD_DIR2)/.configured: $(GCC_DIR)/.patched
 		$(MULTILIB) \
 		$(GCC_DECIMAL_FLOAT) \
 		$(SOFT_FLOAT_CONFIG_OPTION) \
-		$(GCC_WITH_ABI) $(GCC_WITH_ARCH) $(GCC_WITH_TUNE) \
+		$(GCC_WITH_ABI) $(GCC_WITH_ARCH) $(GCC_WITH_TUNE) $(GCC_WITH_CPU) \
 		$(EXTRA_GCC_CONFIG_OPTIONS) \
 		$(EXTRA_GCC2_CONFIG_OPTIONS) \
 		$(QUIET) \
@@ -382,7 +382,7 @@ $(GCC_BUILD_DIR3)/.configured: $(GCC_SRC_DIR)/.patched $(GCC_STAGING_PREREQ)
 		$(THREADS) \
 		$(GCC_DECIMAL_FLOAT) \
 		$(SOFT_FLOAT_CONFIG_OPTION) \
-		$(GCC_WITH_ABI) $(GCC_WITH_ARCH) $(GCC_WITH_TUNE) \
+		$(GCC_WITH_ABI) $(GCC_WITH_ARCH) $(GCC_WITH_TUNE) $(GCC_WITH_CPU) \
 		$(DISABLE_LARGEFILE) \
 		$(EXTRA_GCC_CONFIG_OPTIONS) \
 		$(EXTRA_GCC2_CONFIG_OPTIONS) \
@@ -516,7 +516,7 @@ $(GCC_BUILD_DIR4)/.configured: $(GCC_BUILD_DIR4)/.prepared
 		$(THREADS) \
 		$(GCC_DECIMAL_FLOAT) \
 		$(SOFT_FLOAT_CONFIG_OPTION) \
-		$(GCC_WITH_ABI) $(GCC_WITH_ARCH) $(GCC_WITH_TUNE) \
+		$(GCC_WITH_ABI) $(GCC_WITH_ARCH) $(GCC_WITH_TUNE) $(GCC_WITH_CPU) \
 		$(DISABLE_LARGEFILE) \
 		$(EXTRA_GCC_CONFIG_OPTIONS) \
 		$(EXTRA_TARGET_GCC_CONFIG_OPTIONS) \