mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-28 11:18:45 +07:00
f4f75ad574
This patch changes both x86 and arm64 efistub implementations from #including shared .c files under drivers/firmware/efi to building shared code as a static library. The x86 code uses a stub built into the boot executable which uncompresses the kernel at boot time. In this case, the library is linked into the decompressor. In the arm64 case, the stub is part of the kernel proper so the library is linked into the kernel proper as well. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Matt Fleming <matt.fleming@intel.com>
27 lines
986 B
Makefile
27 lines
986 B
Makefile
#
|
|
# The stub may be linked into the kernel proper or into a separate boot binary,
|
|
# but in either case, it executes before the kernel does (with MMU disabled) so
|
|
# things like ftrace and stack-protector are likely to cause trouble if left
|
|
# enabled, even if doing so doesn't break the build.
|
|
#
|
|
cflags-$(CONFIG_X86_32) := -march=i386
|
|
cflags-$(CONFIG_X86_64) := -mcmodel=small
|
|
cflags-$(CONFIG_X86) += -m$(BITS) -D__KERNEL__ $(LINUX_INCLUDE) -O2 \
|
|
-fPIC -fno-strict-aliasing -mno-red-zone \
|
|
-mno-mmx -mno-sse -DDISABLE_BRANCH_PROFILING
|
|
|
|
cflags-$(CONFIG_ARM64) := $(subst -pg,,$(KBUILD_CFLAGS))
|
|
cflags-$(CONFIG_ARM) := $(subst -pg,,$(KBUILD_CFLAGS)) \
|
|
-fno-builtin -fpic -mno-single-pic-base
|
|
|
|
KBUILD_CFLAGS := $(cflags-y) \
|
|
$(call cc-option,-ffreestanding) \
|
|
$(call cc-option,-fno-stack-protector)
|
|
|
|
GCOV_PROFILE := n
|
|
|
|
lib-y := efi-stub-helper.o
|
|
lib-$(CONFIG_EFI_ARMSTUB) += arm-stub.o fdt.o
|
|
|
|
CFLAGS_fdt.o += -I$(srctree)/scripts/dtc/libfdt/
|