2017-11-29 14:46:01 +00:00
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CONTIKI_ARM_DIRS += cortex-m/cm4
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CFLAGS += -mcpu=cortex-m4
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2018-02-05 16:18:08 +00:00
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2018-08-31 10:15:22 +00:00
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LDFLAGS += -mcpu=cortex-m4
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2018-08-03 12:08:51 +00:00
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LDFLAGS += -T $(LDSCRIPT)
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2018-08-03 13:34:20 +00:00
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LDFLAGS += -Wl,--gc-sections,--sort-section=alignment
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LDFLAGS += -Wl,-Map=$(CONTIKI_NG_PROJECT_MAP),--cref,--no-warn-mismatch
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2018-02-06 15:22:02 +00:00
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2018-02-05 16:18:08 +00:00
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OBJCOPY_FLAGS += --gap-fill 0xff
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### Build syscalls for newlib
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MODULES += os/lib/newlib
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2018-08-03 13:34:20 +00:00
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CPU_STARTFILES = ${addprefix $(OBJECTDIR)/,${call oname, $(CPU_START_SOURCEFILES)}}
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2017-11-29 14:46:01 +00:00
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### Compilation rules
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2018-02-05 16:18:08 +00:00
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CUSTOM_RULE_LINK = 1
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2018-08-03 13:34:20 +00:00
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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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2018-08-31 10:15:22 +00:00
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TARGET_LIBFLAGS := -Wl,--start-group $(TARGET_LIBFILES) -Wl,--end-group
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2018-08-03 13:34:20 +00:00
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2018-08-31 10:15:22 +00:00
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%.elf: $(CPU_STARTFILES) %.o $(PROJECT_OBJECTFILES) $(PROJECT_LIBRARIES) $(CONTIKI_NG_TARGET_LIB) $(TARGET_LIBS)
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2017-11-29 14:46:01 +00:00
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$(TRACE_LD)
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2018-08-31 10:15:22 +00:00
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$(Q)$(LD) $(LDFLAGS) ${filter %.o %.a,$^} $(TARGET_LIBFLAGS) -o $@
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2017-11-29 14:46:01 +00:00
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include $(CONTIKI)/arch/cpu/arm/cortex-m/Makefile.cortex-m
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