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34f69245c3
These are already exported by `makefiles/vars.inc.mk`. It is a prerequisite to allow handling compilation without global exports.
18 lines
665 B
Makefile
18 lines
665 B
Makefile
# Target architecture for the build.
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export TARGET_ARCH ?= riscv-none-embed
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# define build specific options
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CFLAGS_CPU = -march=rv32imac -mabi=ilp32 -mcmodel=medlow -msmall-data-limit=8
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CFLAGS_LINK = -nostartfiles -ffunction-sections -fdata-sections
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CFLAGS_DBG ?= -g3 -Og
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#CFLAGS_OPT ?= -Os
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export LINKFLAGS += -L$(RIOTCPU)/$(CPU)/ldscripts
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export LINKER_SCRIPT ?= $(CPU_MODEL).ld
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export LINKFLAGS += -T$(LINKER_SCRIPT)
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CFLAGS += $(CFLAGS_CPU) $(CFLAGS_DBG) $(CFLAGS_OPT) $(CFLAGS_LINK)
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ASFLAGS += $(CFLAGS_CPU) $(CFLAGS_DBG)
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# export linker flags
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export LINKFLAGS += $(CFLAGS_CPU) $(CFLAGS_LINK) $(CFLAGS_DBG) $(CFLAGS_OPT) -Wl,--gc-sections -static -lgcc
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