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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 | # SPDX-License-Identifier: GPL-2.0 # # Makefile for the linux s390-specific parts of the memory manager. # KCOV_INSTRUMENT := n GCOV_PROFILE := n UBSAN_SANITIZE := n KASAN_SANITIZE := n KCSAN_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 mem_detect.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 machine_kexec_reloc.o obj-$(findstring y, $(CONFIG_PROTECTED_VIRTUALIZATION_GUEST) $(CONFIG_PGSTE)) += uv.o obj-$(CONFIG_RANDOMIZE_BASE) += kaslr.o obj-y += $(if $(CONFIG_KERNEL_UNCOMPRESSED),,decompressor.o) info.o obj-$(CONFIG_KERNEL_ZSTD) += clz_ctz.o obj-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) 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 -j "$*" "$<" | sort | \ sed -n "/0000000000000000/! s/.*\s$*\s\+//p" | sha256sum`; \ s2=`$(OBJDUMP) -t -j "$*" "$(word 2,$^)" | sort | \ sed -n "/0000000000000000/! s/.*\s$*\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 := --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 := --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=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 $(call if_changed,objcopy) suffix-$(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) |