diff options
Diffstat (limited to 'arch/s390/purgatory/Makefile')
| -rw-r--r-- | arch/s390/purgatory/Makefile | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/arch/s390/purgatory/Makefile b/arch/s390/purgatory/Makefile new file mode 100644 index 0000000000..4e930f5668 --- /dev/null +++ b/arch/s390/purgatory/Makefile @@ -0,0 +1,54 @@ +# SPDX-License-Identifier: GPL-2.0 + +OBJECT_FILES_NON_STANDARD := y + +purgatory-y := head.o purgatory.o string.o sha256.o mem.o + +targets += $(purgatory-y) purgatory.lds purgatory purgatory.chk purgatory.ro +PURGATORY_OBJS = $(addprefix $(obj)/,$(purgatory-y)) + +$(obj)/sha256.o: $(srctree)/lib/crypto/sha256.c FORCE + $(call if_changed_rule,cc_o_c) + +CFLAGS_sha256.o := -D__DISABLE_EXPORTS -D__NO_FORTIFY + +$(obj)/mem.o: $(srctree)/arch/s390/lib/mem.S FORCE + $(call if_changed_rule,as_o_S) + +KCOV_INSTRUMENT := n +GCOV_PROFILE := n +UBSAN_SANITIZE := n +KASAN_SANITIZE := n +KCSAN_SANITIZE := n + +KBUILD_CFLAGS := -fno-strict-aliasing -Wall -Wstrict-prototypes +KBUILD_CFLAGS += -Wno-pointer-sign -Wno-sign-compare +KBUILD_CFLAGS += -fno-zero-initialized-in-bss -fno-builtin -ffreestanding +KBUILD_CFLAGS += -Os -m64 -msoft-float -fno-common +KBUILD_CFLAGS += -fno-stack-protector +KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING +KBUILD_CFLAGS += $(CLANG_FLAGS) +KBUILD_CFLAGS += $(call cc-option,-fno-PIE) +KBUILD_AFLAGS := $(filter-out -DCC_USING_EXPOLINE,$(KBUILD_AFLAGS)) + +# Since we link purgatory with -r unresolved symbols are not checked, so we +# also link a purgatory.chk binary without -r to check for unresolved symbols. +PURGATORY_LDFLAGS := -nostdlib -z nodefaultlib +LDFLAGS_purgatory := -r $(PURGATORY_LDFLAGS) -T +LDFLAGS_purgatory.chk := -e purgatory_start $(PURGATORY_LDFLAGS) +$(obj)/purgatory: $(obj)/purgatory.lds $(PURGATORY_OBJS) FORCE + $(call if_changed,ld) + +$(obj)/purgatory.chk: $(obj)/purgatory FORCE + $(call if_changed,ld) + +OBJCOPYFLAGS_purgatory.ro := -O elf64-s390 +OBJCOPYFLAGS_purgatory.ro += --remove-section='*debug*' +OBJCOPYFLAGS_purgatory.ro += --remove-section='.comment' +OBJCOPYFLAGS_purgatory.ro += --remove-section='.note.*' +$(obj)/purgatory.ro: $(obj)/purgatory $(obj)/purgatory.chk FORCE + $(call if_changed,objcopy) + +$(obj)/kexec-purgatory.o: $(obj)/purgatory.ro + +obj-y += kexec-purgatory.o |