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Merge pull request #1356 from haukepetersen/fix_sam3x_newlibnano

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cpu - sam3x8e: added switch for newlib-nano specs
This commit is contained in:
Oleg Hahm 2014-07-02 15:09:36 +02:00
commit d52df839cd
1 changed files with 5 additions and 7 deletions
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12
boards/arduino-due/Makefile.include
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@ -1,4 +1,3 @@
# define the cpu used by the arduino due board
export CPU = sam3x8e
@ -30,7 +29,7 @@ export PORT
# define build specific options
export CPU_USAGE = -mcpu=cortex-m3
export CFLAGS += -ggdb -g3 -std=gnu99 -Os -Wall -Wstrict-prototypes $(CPU_USAGE) -mlittle-endian -mthumb -mthumb-interwork -nostartfiles
export CFLAGS += -DREENTRANT_SYSCALLS_PROVIDED
export CFLAGS += -flto -ffunction-sections -fdata-sections -fno-builtin
export ASFLAGS += -ggdb -g3 -mcpu=cortex-m4 $(FPU_USAGE) -mlittle-endian
export LINKFLAGS += -g3 -ggdb -std=gnu99 $(CPU_USAGE) $(FPU_USAGE) -mlittle-endian -static -lgcc -mthumb -mthumb-interwork -nostartfiles
# linkerscript specified in cpu/Makefile.include
@ -38,11 +37,10 @@ export LINKFLAGS += -T$(LINKERSCRIPT)
export OFLAGS += -O binary
export FFLAGS += -e -w -v -b bin/$(BOARD)/$(APPLICATION).hex
# additional compiler and linker flags to enable newlib-nano and optimize for it
# CAREFUL: newlib-nano is not supported by the ubuntu arm-none-eabi- toolchain, so its disabled by default
#export CFLAGS += -flto -ffunction-sections -fdata-sections -fno-builtin
#export LINKFLAGS += -specs=nano.specs -lc -lnosys
# use the nano-specs of the NewLib when available
ifeq ($(shell $(LINK) -specs=nano.specs -E - 2>/dev/null >/dev/null </dev/null ; echo $$?),0)
export LINKFLAGS += -specs=nano.specs -lc -lnosys
endif
# export board specific includes to the global includes-listing
export INCLUDES += -I$(RIOTBOARD)/$(BOARD)/include