# Code size reduction. # CFLAGS += -fstrength-reduce -fomit-frame-pointer # Code size reduction. gcc3 needs a different syntax to gcc2 if you # want to avoid spurious warnings. # CFLAGS += -falign-jumps=1 -falign-loops=1 -falign-functions=1 # Use %rip-relative addressing wherever possible. # CFLAGS += -fpie # Force 64-bit code # CFLAGS += -m64 ASFLAGS += --64 LDFLAGS += -m elf_x86_64 # EFI requires -fshort-wchar, and nothing else currently uses wchar_t # CFLAGS += -fshort-wchar # We need to undefine the default macro "i386" when compiling .S # files, otherwise ".arch i386" translates to ".arch 1"... # CFLAGS += -Ui386 # x86_64-specific directories containing source files # SRCDIRS += arch/x86_64/prefix # Include common x86 Makefile # MAKEDEPS += arch/x86/Makefile include arch/x86/Makefile # Include platform-specific Makefile # MAKEDEPS += arch/x86_64/Makefile.$(PLATFORM) include arch/x86_64/Makefile.$(PLATFORM)