29 lines
1007 B
Makefile
29 lines
1007 B
Makefile
CONTIKI_ARM_DIRS += cortex-m cortex-m/CMSIS
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### Build syscalls for newlib
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MODULES += os/lib/newlib
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LDFLAGS += -T $(LDSCRIPT)
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LDFLAGS += -Wl,--gc-sections,--sort-section=alignment
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LDFLAGS += -Wl,-Map=$(CONTIKI_NG_PROJECT_MAP),--cref,--no-warn-mismatch
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OBJCOPY_FLAGS += --gap-fill 0xff
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CPU_STARTFILES = ${addprefix $(OBJECTDIR)/,${call oname, $(CPU_START_SOURCEFILES)}}
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### Resolve any potential circular dependencies between the linked libraries
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### See: https://stackoverflow.com/questions/5651869/gcc-what-are-the-start-group-and-end-group-command-line-options/5651895
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TARGET_LIBFLAGS := -Wl,--start-group $(TARGET_LIBFILES) -Wl,--end-group
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CUSTOM_RULE_LINK = 1
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OUT_ELF = $(BUILD_DIR_BOARD)/%.elf
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.SECONDEXPANSION:
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$(OUT_ELF): $(CPU_STARTFILES) $$(CONTIKI_OBJECTFILES) %.o $(PROJECT_OBJECTFILES) $(PROJECT_LIBRARIES) $(LDSCRIPT) $(TARGET_LIBS)
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$(TRACE_LD)
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$(Q)$(LD) $(LDFLAGS) ${filter-out $(LDSCRIPT) %.a,$^} ${filter %.a,$^} $(TARGET_LIBFLAGS) -o $@
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include $(ARCH_PATH)/cpu/arm/Makefile.arm
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