Author: Ulf Samuelsson Date: 2007-03-27
Description:
Change "-msoftfloat" to $(SOFTFLOAT) for arm920t arm926ejs
This allows an arm toolchain using floating point emulation for these cores to build u-boot. When -msoftfloat is present as a flag to arm-linux-gcc, the build fails.
The default operation is to keep -msoftfloat but if CONFIG_NOSOFTFLOAT is defined as an environment variable in the shell, the -msoftfloat is removed during the build
Example: $ export CONFIG_NOSOFTFLOAT=y $ make <board>_config $ make
Signed-off-by: Ulf Samuelsson
diff -urN u-boot-2007-03-26/config.mk u-boot-2007-03-26-atmel/config.mk --- u-boot-2007-03-26/config.mk 2007-03-26 22:52:54.000000000 +0200 +++ u-boot-2007-03-26-atmel/config.mk 2007-03-26 22:54:03.000000000 +0200 @@ -73,6 +73,12 @@ PLATFORM_CPPFLAGS+= -D__BLACKFIN__ endif
+ifeq ($(CONFIG_NOSOFTFLOAT),) +SOFTFLOAT = -msoft-float +else +SOFTFLOAT = +endif + ifdef ARCH sinclude $(TOPDIR)/$(ARCH)_config.mk # include architecture dependend rules endif diff -urN u-boot-2007-03-26/cpu/arm920t/config.mk u-boot-2007-03-26-atmel/cpu/arm920t/config.mk --- u-boot-2007-03-26/cpu/arm920t/config.mk 2007-03-26 22:52:54.000000000 +0200 +++ u-boot-2007-03-26-atmel/cpu/arm920t/config.mk 2007-03-26 22:54:03.000000000 +0200 @@ -22,7 +22,7 @@ #
PLATFORM_RELFLAGS += -fno-strict-aliasing -fno-common -ffixed-r8 \ - -msoft-float + $(SOFTFLOAT)
PLATFORM_CPPFLAGS += -march=armv4 # ========================================================================= diff -urN u-boot-2007-03-26/cpu/arm926ejs/config.mk u-boot-2007-03-26-atmel/cpu/arm926ejs/config.mk --- u-boot-2007-03-26/cpu/arm926ejs/config.mk 2007-03-26 22:52:54.000000000 +0200 +++ u-boot-2007-03-26-atmel/cpu/arm926ejs/config.mk 2007-03-26 22:54:03.000000000 +0200 @@ -22,7 +22,7 @@ #
PLATFORM_RELFLAGS += -fno-strict-aliasing -fno-common -ffixed-r8 \ - -msoft-float + $(SOFTFLOAT)
PLATFORM_CPPFLAGS += -march=armv4 # =========================================================================