51 lines
1.3 KiB
Makefile
51 lines
1.3 KiB
Makefile
# 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
|
|
|
|
# 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
|
|
|
|
# Add -maccumulate-outgoing-args if required by this version of gcc
|
|
#
|
|
ifeq ($(CCTYPE),gcc)
|
|
MS_ABI_TEST_CODE := extern void __attribute__ (( ms_abi )) ms_abi(); \
|
|
void sysv_abi ( void ) { ms_abi(); }
|
|
MS_ABI_TEST = $(ECHO) '$(MS_ABI_TEST_CODE)' | \
|
|
$(CC) -m64 -mno-accumulate-outgoing-args -x c -c - -o /dev/null \
|
|
>/dev/null 2>&1
|
|
MS_ABI_FLAGS := $(shell $(MS_ABI_TEST) || $(ECHO) '-maccumulate-outgoing-args')
|
|
WORKAROUND_CFLAGS += $(MS_ABI_FLAGS)
|
|
endif
|
|
|
|
# x86_64-specific directories containing source files
|
|
#
|
|
SRCDIRS += arch/x86_64/core
|
|
SRCDIRS += arch/x86_64/prefix
|
|
|
|
# Include common x86 Makefile
|
|
#
|
|
MAKEDEPS += arch/x86/Makefile
|
|
include arch/x86/Makefile
|
|
|
|
# Include platform-specific Makefile
|
|
#
|
|
MAKEDEPS += arch/x86_64/Makefile.$(PLATFORM)
|
|
include arch/x86_64/Makefile.$(PLATFORM)
|