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52 lines
1.8 KiB
52 lines
1.8 KiB
# SPDX-License-Identifier: GPL-2.0 |
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OBJECT_FILES_NON_STANDARD := y |
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purgatory-y := head.o purgatory.o string.o sha256.o mem.o |
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targets += $(purgatory-y) purgatory.lds purgatory purgatory.chk purgatory.ro |
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PURGATORY_OBJS = $(addprefix $(obj)/,$(purgatory-y)) |
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$(obj)/sha256.o: $(srctree)/lib/crypto/sha256.c FORCE |
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$(call if_changed_rule,cc_o_c) |
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CFLAGS_sha256.o := -D__DISABLE_EXPORTS |
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$(obj)/mem.o: $(srctree)/arch/s390/lib/mem.S FORCE |
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$(call if_changed_rule,as_o_S) |
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KCOV_INSTRUMENT := n |
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GCOV_PROFILE := n |
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UBSAN_SANITIZE := n |
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KASAN_SANITIZE := n |
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KBUILD_CFLAGS := -fno-strict-aliasing -Wall -Wstrict-prototypes |
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KBUILD_CFLAGS += -Wno-pointer-sign -Wno-sign-compare |
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KBUILD_CFLAGS += -fno-zero-initialized-in-bss -fno-builtin -ffreestanding |
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KBUILD_CFLAGS += -c -MD -Os -m64 -msoft-float -fno-common |
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KBUILD_CFLAGS += $(CLANG_FLAGS) |
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KBUILD_CFLAGS += $(call cc-option,-fno-PIE) |
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KBUILD_AFLAGS := $(filter-out -DCC_USING_EXPOLINE,$(KBUILD_AFLAGS)) |
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# Since we link purgatory with -r unresolved symbols are not checked, so we |
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# also link a purgatory.chk binary without -r to check for unresolved symbols. |
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PURGATORY_LDFLAGS := -nostdlib -z nodefaultlib |
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LDFLAGS_purgatory := -r $(PURGATORY_LDFLAGS) -T |
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LDFLAGS_purgatory.chk := -e purgatory_start $(PURGATORY_LDFLAGS) |
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$(obj)/purgatory: $(obj)/purgatory.lds $(PURGATORY_OBJS) FORCE |
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$(call if_changed,ld) |
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$(obj)/purgatory.chk: $(obj)/purgatory FORCE |
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$(call if_changed,ld) |
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OBJCOPYFLAGS_purgatory.ro := -O elf64-s390 |
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OBJCOPYFLAGS_purgatory.ro += --remove-section='*debug*' |
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OBJCOPYFLAGS_purgatory.ro += --remove-section='.comment' |
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OBJCOPYFLAGS_purgatory.ro += --remove-section='.note.*' |
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$(obj)/purgatory.ro: $(obj)/purgatory $(obj)/purgatory.chk FORCE |
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$(call if_changed,objcopy) |
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$(obj)/kexec-purgatory.o: $(obj)/kexec-purgatory.S $(obj)/purgatory.ro FORCE |
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$(call if_changed_rule,as_o_S) |
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obj-$(CONFIG_ARCH_HAS_KEXEC_PURGATORY) += kexec-purgatory.o
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