boards/msba2-common: Homogenize CFLAGS and add support for newlib-nano

This commit is contained in:
Joakim Nohlgård 2016-02-08 19:37:37 +01:00
parent 04c37094a0
commit 936a92ce8b

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@ -10,21 +10,30 @@ export PREFIX = $(if $(TARGET_TRIPLE),$(TARGET_TRIPLE)-)
export CC = $(PREFIX)gcc
export CXX = $(PREFIX)g++
export AR = $(PREFIX)ar
export CFLAGS += -O2 -Wall -Wstrict-prototypes -mcpu=arm7tdmi-s -gdwarf-2 -fdata-sections -ffunction-sections
export ASFLAGS = -gdwarf-2 -mcpu=arm7tdmi-s
export AS = $(PREFIX)as
export LINK = $(PREFIX)gcc
export SIZE = $(PREFIX)size
export OBJCOPY = $(PREFIX)objcopy
FLASHER = lpc2k_pgm
TERMPROG ?= $(RIOTBASE)/dist/tools/pyterm/pyterm
LINKFLAGS += -gdwarf-2 -mcpu=arm7tdmi-s -static -lgcc -nostartfiles -T$(RIOTBASE)/cpu/$(CPU)/ldscripts/$(CPU).ld -Wl,--gc-sections
# unwanted (CXXUWFLAGS) and extra (CXXEXFLAGS) flags for c++
export CXXUWFLAGS +=
export CXXEXFLAGS +=
export CFLAGS_CPU = -mcpu=arm7tdmi-s
export CFLAGS_LINK = -ffunction-sections -fdata-sections -fno-builtin -fshort-enums
export CFLAGS_DBG = -ggdb -g3
export CFLAGS_OPT ?= -Os
ifeq ($(strip $(PORT)),)
export CFLAGS += $(CFLAGS_CPU) $(CFLAGS_LINK) $(CFLAGS_DBG) $(CFLAGS_OPT)
export ASFLAGS += $(CFLAGS_CPU) $(CFLAGS_DBG)
export LINKFLAGS += -T$(RIOTCPU)/$(CPU)/ldscripts/$(CPU).ld
export LINKFLAGS += $(CFLAGS_CPU) $(CFLAGS_DBG) $(CFLAGS_OPT) -static -lgcc -nostartfiles
export LINKFLAGS += -Wl,--gc-sections
# use the nano-specs of Newlib when available
ifeq ($(shell $(LINK) -specs=nano.specs -E - 2>/dev/null >/dev/null </dev/null ; echo $$?),0)
export LINKFLAGS += -specs=nano.specs -lc -lnosys
endif
ifeq ($(PORT),)
export PORT = /dev/ttyUSB0
endif
export FFLAGS = $(PORT) $(HEXFILE)