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Don't compile all of libopencm3, only required target #20

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Merged
devanlai merged 1 commit into from
Feb 26, 2020
Merged

Don't compile all of libopencm3, only required target #20

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5 changes: 4 additions & 1 deletion src/rules.mk
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Original file line number Diff line number Diff line change
Expand Up @@ -34,19 +34,22 @@ ifeq ($(ARCH),STM32F0)
FP_FLAGS ?= -msoft-float
ARCH_FLAGS = -mthumb -mcpu=cortex-m0 $(FP_FLAGS)
OOCD_BOARD ?= target/stm32f0x.cfg
OPENCM3_TARGET = "stm32/f0"
endif
ifeq ($(ARCH),STM32F1)
LIBNAME = opencm3_stm32f1
DEFS += -DSTM32F1
FP_FLAGS ?= -msoft-float
ARCH_FLAGS = -mthumb -mcpu=cortex-m3 $(FP_FLAGS) -mfix-cortex-m3-ldrd
OOCD_BOARD ?= target/stm32f1x.cfg
OPENCM3_TARGET = "stm32/f1"
endif

LIBNAME ?= opencm3_stm32f0
DEFS ?= -DSTM32F0
FP_FLAGS ?= -msoft-float
ARCH_FLAGS ?= -mthumb -mcpu=cortex-m0 $(FP_FLAGS)
OPENCM3_TARGET ?= "stm32/f0"

####################################################################
# Semihosting support
Expand Down Expand Up @@ -156,7 +159,7 @@ $(OPENCM3_DIR)/Makefile:
$(Q)git submodule update --init $(OPENCM3_DIR)

$(LIB_DIR)/lib$(LIBNAME).a: $(OPENCM3_DIR)/Makefile
$(Q)$(MAKE) -C $(OPENCM3_DIR)
$(Q)$(MAKE) -C $(OPENCM3_DIR) TARGETS=$(OPENCM3_TARGET)

locm3: $(LIB_DIR)/lib$(LIBNAME).a

Expand Down