diff options
Diffstat (limited to 'drivers/firmware/efi')
| -rw-r--r-- | drivers/firmware/efi/Kconfig | 3 | ||||
| -rw-r--r-- | drivers/firmware/efi/Makefile | 1 | ||||
| -rw-r--r-- | drivers/firmware/efi/libstub/Makefile | 26 | ||||
| -rw-r--r-- | drivers/firmware/efi/libstub/arm-stub.c (renamed from drivers/firmware/efi/arm-stub.c) | 0 | ||||
| -rw-r--r-- | drivers/firmware/efi/libstub/efi-stub-helper.c (renamed from drivers/firmware/efi/efi-stub-helper.c) | 0 | ||||
| -rw-r--r-- | drivers/firmware/efi/libstub/efistub.h (renamed from drivers/firmware/efi/efistub.h) | 0 | ||||
| -rw-r--r-- | drivers/firmware/efi/libstub/fdt.c (renamed from drivers/firmware/efi/fdt.c) | 0 |
7 files changed, 30 insertions, 0 deletions
diff --git a/drivers/firmware/efi/Kconfig b/drivers/firmware/efi/Kconfig index 588dc47e7075..f712d47f30d8 100644 --- a/drivers/firmware/efi/Kconfig +++ b/drivers/firmware/efi/Kconfig @@ -57,6 +57,9 @@ config EFI_PARAMS_FROM_FDT config EFI_RUNTIME_WRAPPERS bool +config EFI_ARMSTUB + bool + endmenu config UEFI_CPER diff --git a/drivers/firmware/efi/Makefile b/drivers/firmware/efi/Makefile index e1096539eedb..a204d1474cec 100644 --- a/drivers/firmware/efi/Makefile +++ b/drivers/firmware/efi/Makefile @@ -7,3 +7,4 @@ obj-$(CONFIG_EFI_VARS_PSTORE) += efi-pstore.o obj-$(CONFIG_UEFI_CPER) += cper.o obj-$(CONFIG_EFI_RUNTIME_MAP) += runtime-map.o obj-$(CONFIG_EFI_RUNTIME_WRAPPERS) += runtime-wrappers.o +obj-$(CONFIG_EFI_STUB) += libstub/ diff --git a/drivers/firmware/efi/libstub/Makefile b/drivers/firmware/efi/libstub/Makefile new file mode 100644 index 000000000000..b14bc2b9fb4d --- /dev/null +++ b/drivers/firmware/efi/libstub/Makefile @@ -0,0 +1,26 @@ +# +# The stub may be linked into the kernel proper or into a separate boot binary, +# but in either case, it executes before the kernel does (with MMU disabled) so +# things like ftrace and stack-protector are likely to cause trouble if left +# enabled, even if doing so doesn't break the build. +# +cflags-$(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/ diff --git a/drivers/firmware/efi/arm-stub.c b/drivers/firmware/efi/libstub/arm-stub.c index 480339b6b110..480339b6b110 100644 --- a/drivers/firmware/efi/arm-stub.c +++ b/drivers/firmware/efi/libstub/arm-stub.c diff --git a/drivers/firmware/efi/efi-stub-helper.c b/drivers/firmware/efi/libstub/efi-stub-helper.c index 32d5cca30f49..32d5cca30f49 100644 --- a/drivers/firmware/efi/efi-stub-helper.c +++ b/drivers/firmware/efi/libstub/efi-stub-helper.c diff --git a/drivers/firmware/efi/efistub.h b/drivers/firmware/efi/libstub/efistub.h index 304ab295ca1a..304ab295ca1a 100644 --- a/drivers/firmware/efi/efistub.h +++ b/drivers/firmware/efi/libstub/efistub.h diff --git a/drivers/firmware/efi/fdt.c b/drivers/firmware/efi/libstub/fdt.c index 86d2934840e2..86d2934840e2 100644 --- a/drivers/firmware/efi/fdt.c +++ b/drivers/firmware/efi/libstub/fdt.c |