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