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simmel-bootloader
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use gcc for linker instead of ld

This commit is contained in:
hathach 2020-03-24 23:51:42 +07:00
parent e37c884463
commit 54ddaa142d
1 changed files with 25 additions and 30 deletions
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55
Makefile
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@ -38,28 +38,20 @@ MERGED_FILE = $(OUT_FILE)_$(SD_NAME)_$(SD_VERSION)
# Toolchain commands
# Should be added to your PATH
CROSS_COMPILE = arm-none-eabi-
CC := $(CROSS_COMPILE)gcc
AS := $(CROSS_COMPILE)as
AR := $(CROSS_COMPILE)ar -r
LD := $(CROSS_COMPILE)ld
NM := $(CROSS_COMPILE)nm
OBJDUMP := $(CROSS_COMPILE)objdump
OBJCOPY := $(CROSS_COMPILE)objcopy
SIZE := $(CROSS_COMPILE)size
GDB := $(CROSS_COMPILE)gdb
CC = $(CROSS_COMPILE)gcc
AS = $(CROSS_COMPILE)as
AR = $(CROSS_COMPILE)ar -r
NM = $(CROSS_COMPILE)nm
OBJDUMP = $(CROSS_COMPILE)objdump
OBJCOPY = $(CROSS_COMPILE)objcopy
SIZE = $(CROSS_COMPILE)size
GDB = $(CROSS_COMPILE)gdb
NRFUTIL = adafruit-nrfutil
NRFJPROG = nrfjprog
MK := mkdir -p
RM := rm -rf
# Verbose mode (V=). 0: default, 1: print out CFLAG, LDFLAG 2: print all compile command
ifeq ("$(V)","2")
QUIET =
else
QUIET = @
endif
MK = mkdir -p
RM = rm -rf
# auto-detect BMP on macOS, otherwise have to specify
BMP_PORT ?= $(shell ls -1 /dev/cu.usbmodem????????1 | head -1)
@ -226,7 +218,7 @@ CFLAGS += -mfloat-abi=hard -mfpu=fpv4-sp-d16
# keep every function in separate section. This will allow linker to dump unused functions
CFLAGS += -ffunction-sections -fdata-sections -fno-strict-aliasing
CFLAGS += -fno-builtin --short-enums -fstack-usage
CFLAGS += -fno-builtin -fshort-enums -fstack-usage
# Defined Symbol (MACROS)
CFLAGS += -D__HEAP_SIZE=0
@ -248,17 +240,13 @@ CFLAGS += -DMK_BOOTLOADER_VERSION='($(word 1,$(_VER)) << 16) + ($(word 2,$(_VER)
#
#******************************************************************************
# keep every function in separate section. This will allow linker to dump unused functions
LDFLAGS += -Xlinker -Map=$(BUILD)/$(OUT_FILE).map
LDFLAGS += -mthumb -mabi=aapcs -Llinker -T$(LD_FILE)
LDFLAGS += -mcpu=cortex-m4
LDFLAGS += -mfloat-abi=hard -mfpu=fpv4-sp-d16
LDFLAGS += \
$(CFLAGS) \
-Wl,-L,linker -Wl,-T,$(LD_FILE) \
-Wl,-Map=$@.map -Wl,-cref -Wl,-gc-sections \
-specs=nosys.specs -specs=nano.specs
# let linker to dump unused sections
LDFLAGS += -Wl,--gc-sections
# use newlib in nano version
LDFLAGS += --specs=nano.specs -lc -lnosys
LIBS += -lm -lc
#******************************************************************************
# Assembler flags
@ -290,6 +278,7 @@ OBJECTS = $(C_OBJECTS) $(ASM_OBJECTS)
# BUILD TARGETS
#******************************************************************************
# Verbose mode (V=). 0: default, 1: print out CFLAG, LDFLAG 2: print all compile command
ifeq ("$(V)","1")
$(info CFLAGS $(CFLAGS))
$(info )
@ -299,6 +288,12 @@ $(info ASMFLAGS $(ASMFLAGS))
$(info )
endif
ifeq ("$(V)","2")
QUIET =
else
QUIET = @
endif
.phony: all clean size flash sd erase
# default target to build
@ -359,7 +354,7 @@ $(BUILD)/%.o: %.S
# Link
$(BUILD)/$(OUT_FILE)-nosd.out: $(BUILD) $(OBJECTS)
@echo LD $(OUT_FILE)-nosd.out
$(QUIET)$(CC) $(LDFLAGS) $(OBJECTS) $(LIBS) -lm -o $@
$(QUIET)$(CC) -o $@ $(LDFLAGS) $(OBJECTS) -Wl,--start-group $(LIBS) -Wl,--end-group
size: $(BUILD)/$(OUT_FILE)-nosd.out
-@echo ''