diff options
Diffstat (limited to 'arduino-mk')
| -rw-r--r-- | arduino-mk/Arduino.mk | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/arduino-mk/Arduino.mk b/arduino-mk/Arduino.mk index c6a49bc..fefde1e 100644 --- a/arduino-mk/Arduino.mk +++ b/arduino-mk/Arduino.mk @@ -668,10 +668,20 @@ USER_LIB_OBJS = $(patsubst $(USER_LIB_PATH)/%.cpp,$(OBJDIR)/libs/%.o,$(USER_LIB_ # Dependency files DEPS = $(LOCAL_OBJS:.o=.d) $(LIB_OBJS:.o=.d) $(USER_LIB_OBJS:.o=.d) $(CORE_OBJS:.o=.d) +# Optimization level for the compiler. +# You can get the list of options at http://www.nongnu.org/avr-libc/user-manual/using_tools.html#gcc_optO +# Also read http://www.nongnu.org/avr-libc/user-manual/FAQ.html#faq_optflags +ifndef OPTIMIZATION_LEVEL + OPTIMIZATION_LEVEL=s + $(call show_config_variable,OPTIMIZATION_LEVEL,[DEFAULT]) +else + $(call show_config_variable,OPTIMIZATION_LEVEL,[USER]) +endif + # Using += instead of =, so that CPPFLAGS can be set per sketch level CPPFLAGS += -mmcu=$(MCU) -DF_CPU=$(F_CPU) -DARDUINO=$(ARDUINO_VERSION) \ -I. -I$(ARDUINO_CORE_PATH) -I$(ARDUINO_VAR_PATH)/$(VARIANT) \ - $(SYS_INCLUDES) $(USER_INCLUDES) -g -Os -Wall \ + $(SYS_INCLUDES) $(USER_INCLUDES) -g -O$(OPTIMIZATION_LEVEL) -Wall \ -ffunction-sections -fdata-sections # USB IDs for the Leonardo @@ -682,7 +692,7 @@ endif CFLAGS += -std=gnu99 $(EXTRA_FLAGS) $(EXTRA_CFLAGS) CXXFLAGS += -fno-exceptions $(EXTRA_FLAGS) $(EXTRA_CXXFLAGS) ASFLAGS += -mmcu=$(MCU) -I. -x assembler-with-cpp -LDFLAGS += -mmcu=$(MCU) -Wl,--gc-sections -Os $(EXTRA_FLAGS) $(EXTRA_CXXFLAGS) +LDFLAGS += -mmcu=$(MCU) -Wl,--gc-sections -O$(OPTIMIZATION_LEVEL) $(EXTRA_FLAGS) $(EXTRA_CXXFLAGS) SIZEFLAGS ?= --mcu=$(MCU) -C # Returns the Arduino port (first wildcard expansion) if it exists, otherwise it errors. |