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Edit File: Makefile
# SPDX-License-Identifier: GPL-2.0 # # Makefile for the linux s390-specific parts of the memory manager. # # Tooling runtimes are unavailable and cannot be linked for early boot code KCOV_INSTRUMENT := n GCOV_PROFILE := n UBSAN_SANITIZE := n KASAN_SANITIZE := n KCSAN_SANITIZE := n KMSAN_SANITIZE := n KBUILD_AFLAGS := $(KBUILD_AFLAGS_DECOMPRESSOR) KBUILD_CFLAGS := $(KBUILD_CFLAGS_DECOMPRESSOR) # # Use minimum architecture for als.c to be able to print an error # message if the kernel is started on a machine which is too old # ifndef CONFIG_CC_IS_CLANG CC_FLAGS_MARCH_MINIMUM := -march=z900 else CC_FLAGS_MARCH_MINIMUM := -march=z10 endif ifneq ($(CC_FLAGS_MARCH),$(CC_FLAGS_MARCH_MINIMUM)) AFLAGS_REMOVE_head.o += $(CC_FLAGS_MARCH) AFLAGS_head.o += $(CC_FLAGS_MARCH_MINIMUM) AFLAGS_REMOVE_mem.o += $(CC_FLAGS_MARCH) AFLAGS_mem.o += $(CC_FLAGS_MARCH_MINIMUM) CFLAGS_REMOVE_als.o += $(CC_FLAGS_MARCH) CFLAGS_als.o += $(CC_FLAGS_MARCH_MINIMUM) CFLAGS_REMOVE_sclp_early_core.o += $(CC_FLAGS_MARCH) CFLAGS_sclp_early_core.o += $(CC_FLAGS_MARCH_MINIMUM) endif CFLAGS_sclp_early_core.o += -I$(srctree)/drivers/s390/char obj-y := head.o als.o startup.o physmem_info.o ipl_parm.o ipl_report.o vmem.o obj-y += string.o ebcdic.o sclp_early_core.o mem.o ipl_vmparm.o cmdline.o obj-y += version.o pgm_check_info.o ctype.o ipl_data.o relocs.o alternative.o uv.o obj-$(CONFIG_RANDOMIZE_BASE) += kaslr.o obj-y += $(if $(CONFIG_KERNEL_UNCOMPRESSED),,decompressor.o) info.o obj-$(CONFIG_KERNEL_ZSTD) += clz_ctz.o obj-$(CONFIG_KMSAN) += kmsan.o obj-all := $(obj-y) piggy.o syms.o targets := bzImage section_cmp.boot.data section_cmp.boot.preserved.data $(obj-y) targets += vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 targets += vmlinux.bin.xz vmlinux.bin.lzma vmlinux.bin.lzo vmlinux.bin.lz4 targets += vmlinux.bin.zst info.bin syms.bin vmlinux.syms $(obj-all) targets += relocs.S OBJECTS := $(addprefix $(obj)/,$(obj-y)) OBJECTS_ALL := $(addprefix $(obj)/,$(obj-all)) clean-files += vmlinux.map quiet_cmd_section_cmp = SECTCMP $* define cmd_section_cmp s1=`$(OBJDUMP) -t "$<" | grep "\s$*\s\+" | sort | \ sed -n "/0000000000000000/! s/.*\s$*\s\+//p" | sha256sum`; \ s2=`$(OBJDUMP) -t "$(word 2,$^)" | grep "\s$*\s\+" | sort | \ sed -n "/0000000000000000/! s/.*\s$*\s\+//p" | sha256sum`; \ if [ "$$s1" != "$$s2" ]; then \ echo "error: section $* differs between $< and $(word 2,$^)" >&2; \ exit 1; \ fi; \ touch $@ endef $(obj)/bzImage: $(obj)/vmlinux $(obj)/section_cmp.boot.data $(obj)/section_cmp.boot.preserved.data FORCE $(call if_changed,objcopy) $(obj)/section_cmp%: vmlinux $(obj)/vmlinux FORCE $(call if_changed,section_cmp) LDFLAGS_vmlinux-$(CONFIG_LD_ORPHAN_WARN) := --orphan-handling=$(CONFIG_LD_ORPHAN_WARN_LEVEL) LDFLAGS_vmlinux := $(LDFLAGS_vmlinux-y) --oformat $(LD_BFD) -e startup $(if $(CONFIG_VMLINUX_MAP),-Map=$(obj)/vmlinux.map) --build-id=sha1 -T $(obj)/vmlinux: $(obj)/vmlinux.lds $(OBJECTS_ALL) FORCE $(call if_changed,ld) LDFLAGS_vmlinux.syms := $(LDFLAGS_vmlinux-y) --oformat $(LD_BFD) -e startup -T $(obj)/vmlinux.syms: $(obj)/vmlinux.lds $(OBJECTS) FORCE $(call if_changed,ld) quiet_cmd_dumpsyms = DUMPSYMS $< define cmd_dumpsyms $(NM) -n -S --format=bsd "$<" | sed -nE 's/^0*([0-9a-fA-F]+) 0*([0-9a-fA-F]+) [tT] ([^ ]*)$$/\1 \2 \3/p' | tr '\n' '\0' > "$@" endef $(obj)/syms.bin: $(obj)/vmlinux.syms FORCE $(call if_changed,dumpsyms) OBJCOPYFLAGS_syms.o := -I binary -O elf64-s390 -B s390:64-bit --rename-section .data=.decompressor.syms $(obj)/syms.o: $(obj)/syms.bin FORCE $(call if_changed,objcopy) OBJCOPYFLAGS_info.bin := -O binary --only-section=.vmlinux.info --set-section-flags .vmlinux.info=alloc,load $(obj)/info.bin: vmlinux FORCE $(call if_changed,objcopy) OBJCOPYFLAGS_info.o := -I binary -O elf64-s390 -B s390:64-bit --rename-section .data=.vmlinux.info $(obj)/info.o: $(obj)/info.bin FORCE $(call if_changed,objcopy) OBJCOPYFLAGS_vmlinux.bin := -O binary --remove-section=.comment --remove-section=.vmlinux.info -S $(obj)/vmlinux.bin: vmlinux FORCE $(call if_changed,objcopy) CMD_RELOCS=arch/s390/tools/relocs quiet_cmd_relocs = RELOCS $@ cmd_relocs = $(CMD_RELOCS) $< > $@ $(obj)/relocs.S: vmlinux FORCE $(call if_changed,relocs) suffix-$(CONFIG_KERNEL_GZIP) := .gz suffix-$(CONFIG_KERNEL_BZIP2) := .bz2 suffix-$(CONFIG_KERNEL_LZ4) := .lz4 suffix-$(CONFIG_KERNEL_LZMA) := .lzma suffix-$(CONFIG_KERNEL_LZO) := .lzo suffix-$(CONFIG_KERNEL_XZ) := .xz suffix-$(CONFIG_KERNEL_ZSTD) := .zst $(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE $(call if_changed,gzip) $(obj)/vmlinux.bin.bz2: $(obj)/vmlinux.bin FORCE $(call if_changed,bzip2_with_size) $(obj)/vmlinux.bin.lz4: $(obj)/vmlinux.bin FORCE $(call if_changed,lz4_with_size) $(obj)/vmlinux.bin.lzma: $(obj)/vmlinux.bin FORCE $(call if_changed,lzma_with_size) $(obj)/vmlinux.bin.lzo: $(obj)/vmlinux.bin FORCE $(call if_changed,lzo_with_size) $(obj)/vmlinux.bin.xz: $(obj)/vmlinux.bin FORCE $(call if_changed,xzkern_with_size) $(obj)/vmlinux.bin.zst: $(obj)/vmlinux.bin FORCE $(call if_changed,zstd22_with_size) OBJCOPYFLAGS_piggy.o := -I binary -O elf64-s390 -B s390:64-bit --rename-section .data=.vmlinux.bin.compressed $(obj)/piggy.o: $(obj)/vmlinux.bin$(suffix-y) FORCE $(call if_changed,objcopy)
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