45 lines
1.6 KiB
Makefile
45 lines
1.6 KiB
Makefile
CONTIKI_CPU_DIRS += . init/common
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CONTIKI_SOURCEFILES += gdt.c helpers.S idt.c cpu.c
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CC = gcc
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LD = $(CC)
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# Use gcc to invoke the assembler so that the preprocessor will be run on each
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# file first, enabling us to use macros within assembly language files:
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AS = $(CC)
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OBJCOPY = objcopy
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SIZE = size
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STRIP = strip
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# Omit exception handling unwind tables (see
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# http://wiki.dwarfstd.org/index.php?title=Exception_Handling). Removing these
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# tables saves space and has not caused any readily-apparent functional
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# changes.
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#
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# Furthermore, the .eh_frame and .eh_frame_hdr sections that are otherwise
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# generated are treated as code sections by the UEFI GenFw program, since they
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# are read-only alloc sections. They get grouped with the actual code
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# sections, ahead of the data sections. This perturbs symbols and complicates
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# debugging.
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#
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# Synchronize the unwind table options here with the CFLAGS and CXXFLAGS in
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# ./bsp/libc/build_newlib.sh.
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CFLAGS += -Wall -fno-asynchronous-unwind-tables -fno-unwind-tables
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LDFLAGS += -Wl,-Map=contiki-$(TARGET).map,--build-id=none
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ifeq ($(BUILD_RELEASE),1)
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CFLAGS += -Os -fno-strict-aliasing -ffunction-sections -fdata-sections
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# XXX: --gc-sections can be very tricky sometimes. If somehow the release
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# binary seems to be broken, check if removing this option fixes the issue.
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# Applying the --strip-all option to the UEFI build may induce an "Invalid operation" error.
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# The UEFI GenFw program strips symbols.
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MULTIBOOT_LDFLAGS += -Wl,--strip-all,--gc-sections
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else
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CFLAGS += -O0
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ifeq ($(findstring clang,$(CC)),clang)
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CFLAGS += -g
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else
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CFLAGS += -ggdb3
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endif
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endif
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