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cantact-fw
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major code size optimization

This commit is contained in:
Eric Evenchick 2015-01-28 16:46:46 -05:00
parent 0db206451f
commit e7118b2d5e
2 changed files with 9 additions and 6 deletions
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11
Makefile
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@ -33,9 +33,9 @@ USB_INCLUDES = -IMiddlewares/ST/STM32_USB_Device_Library/Core/Inc
USB_INCLUDES += -IMiddlewares/ST/STM32_USB_Device_Library/Class/CDC/Inc USB_INCLUDES += -IMiddlewares/ST/STM32_USB_Device_Library/Class/CDC/Inc
# USER_CFLAGS: user C flags (enable warnings, enable debug info) # USER_CFLAGS: user C flags (enable warnings, enable debug info)
USER_CFLAGS = -Wall -g USER_CFLAGS = -Wall -g -ffunction-sections -fdata-sections -Os
# USER_LDFLAGS: user LD flags # USER_LDFLAGS: user LD flags
USER_LDFLAGS = USER_LDFLAGS = -fno-exceptions -ffunction-sections -fdata-sections -Wl,--gc-sections
# TARGET_DEVICE: device to compile for # TARGET_DEVICE: device to compile for
TARGET_DEVICE = STM32F042x6 TARGET_DEVICE = STM32F042x6
@ -143,16 +143,15 @@ OBJECTS += $(BUILD_DIR)/startup_stm32f042x6.o
# use the periphlib core library, plus generic ones (libc, libm, libnosys) # use the periphlib core library, plus generic ones (libc, libm, libnosys)
LIBS = -lstm32cube -lc -lm -lnosys LIBS = -lstm32cube -lc -lm -lnosys
LDFLAGS = -T $(LD_SCRIPT) -L $(CUBELIB_BUILD_DIR) $(LIBS) $(USER_LDFLAGS) LDFLAGS = -T $(LD_SCRIPT) -L $(CUBELIB_BUILD_DIR) -static $(LIBS) $(USER_LDFLAGS)
$(BUILD_DIR)/$(TARGET).hex: $(BUILD_DIR)/$(TARGET).elf $(BUILD_DIR)/$(TARGET).hex: $(BUILD_DIR)/$(TARGET).elf
$(OBJCOPY) -O ihex $(BUILD_DIR)/$(TARGET).elf $@ $(OBJCOPY) -O ihex $(BUILD_DIR)/$(TARGET).elf $@
$(BUILD_DIR)/$(TARGET).elf: $(OBJECTS) $(USB_OBJECTS) $(CUBELIB) $(BUILD_DIR)/$(TARGET).elf: $(OBJECTS) $(USB_OBJECTS) $(CUBELIB)
$(CC) -o $@ $(CFLAGS) $(OBJECTS) $(USB_OBJECTS) \ $(CC) -o $@ $(CFLAGS) $(OBJECTS) $(USB_OBJECTS) \
-L$(CUBELIB_BUILD_DIR) -static $(LIBS) -Xlinker \ $(LDFLAGS) -Xlinker \
-Map=$(BUILD_DIR)/$(TARGET).map \ -Map=$(BUILD_DIR)/$(TARGET).map
-T $(LD_SCRIPT)
$(SIZE) $@ $(SIZE) $@
$(BUILD_DIR)/%.o: Src/%.c | $(BUILD_DIR) $(BUILD_DIR)/%.o: Src/%.c | $(BUILD_DIR)

4
README.md
View File

@ -23,6 +23,10 @@ the stm32f0x.cfg file: `openocd -f fw/stm32f0x.cfg`.
With OpenOCD running, arm-none-eabi-gdb can be used to load code and debug. With OpenOCD running, arm-none-eabi-gdb can be used to load code and debug.
## Contributors
- [Ethan Zonca](https://github.com/normaldotcom) - Makefile fixes and code size optimization
## License ## License
See LICENSE.md See LICENSE.md