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-rw-r--r--arch/s390/boot/Makefile128
1 files changed, 89 insertions, 39 deletions
diff --git a/arch/s390/boot/Makefile b/arch/s390/boot/Makefile
index e2c47d3a1c89..bee49626be4b 100644
--- a/arch/s390/boot/Makefile
+++ b/arch/s390/boot/Makefile
@@ -3,53 +3,53 @@
# 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
-
-KBUILD_AFLAGS := $(KBUILD_AFLAGS_DECOMPRESSOR)
-KBUILD_CFLAGS := $(KBUILD_CFLAGS_DECOMPRESSOR)
+KCSAN_SANITIZE := n
+KMSAN_SANITIZE := n
#
-# Use minimum architecture for als.c to be able to print an error
+# Use minimum architecture level so it is possible to print an error
# message if the kernel is started on a machine which is too old
#
-ifndef CONFIG_CC_IS_CLANG
-CC_FLAGS_MARCH_MINIMUM := -march=z900
-else
CC_FLAGS_MARCH_MINIMUM := -march=z10
-endif
-
-ifneq ($(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
+
+KBUILD_AFLAGS := $(filter-out $(CC_FLAGS_MARCH),$(KBUILD_AFLAGS_DECOMPRESSOR))
+KBUILD_CFLAGS := $(filter-out $(CC_FLAGS_MARCH),$(KBUILD_CFLAGS_DECOMPRESSOR))
+KBUILD_AFLAGS += $(CC_FLAGS_MARCH_MINIMUM)
+KBUILD_CFLAGS += $(CC_FLAGS_MARCH_MINIMUM)
CFLAGS_sclp_early_core.o += -I$(srctree)/drivers/s390/char
-obj-y := head.o als.o startup.o mem_detect.o ipl_parm.o ipl_report.o
+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 text_dma.o
-obj-$(CONFIG_PROTECTED_VIRTUALIZATION_GUEST) += uv.o
-obj-$(CONFIG_RELOCATABLE) += machine_kexec_reloc.o
+obj-y += version.o pgm_check.o ctype.o ipl_data.o relocs.o alternative.o
+obj-y += uv.o printk.o
obj-$(CONFIG_RANDOMIZE_BASE) += kaslr.o
-targets := bzImage startup.a section_cmp.boot.data section_cmp.boot.preserved.data $(obj-y)
-subdir- := compressed
+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 -j "$*" "$<" | sort | \
+ s1=`$(OBJDUMP) -t "$<" | grep "\s$*\s\+" | sort | \
sed -n "/0000000000000000/! s/.*\s$*\s\+//p" | sha256sum`; \
- s2=`$(OBJDUMP) -t -j "$*" "$(word 2,$^)" | sort | \
+ 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; \
@@ -58,22 +58,72 @@ define cmd_section_cmp
touch $@
endef
-$(obj)/bzImage: $(obj)/compressed/vmlinux $(obj)/section_cmp.boot.data $(obj)/section_cmp.boot.preserved.data FORCE
+$(obj)/bzImage: $(obj)/vmlinux $(obj)/section_cmp.boot.data $(obj)/section_cmp.boot.preserved.data FORCE
$(call if_changed,objcopy)
-$(obj)/section_cmp%: vmlinux $(obj)/compressed/vmlinux FORCE
+$(obj)/section_cmp%: vmlinux $(obj)/vmlinux FORCE
$(call if_changed,section_cmp)
-$(obj)/compressed/vmlinux: $(obj)/startup.a FORCE
- $(Q)$(MAKE) $(build)=$(obj)/compressed $@
+LDFLAGS_vmlinux-$(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
+ $(call if_changed,objcopy)
-$(obj)/startup.a: $(OBJECTS) FORCE
- $(call if_changed,ar)
+OBJCOPYFLAGS_info.bin := -O binary --only-section=.vmlinux.info --set-section-flags .vmlinux.info=alloc,load
+$(obj)/info.bin: vmlinux FORCE
+ $(call if_changed,objcopy)
-install: $(CONFIGURE) $(obj)/bzImage
- sh -x $(srctree)/$(obj)/install.sh $(KERNELRELEASE) $(obj)/bzImage \
- System.map "$(INSTALL_PATH)"
+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)
-chkbss := $(obj-y)
-chkbss-target := startup.a
-include $(srctree)/arch/s390/scripts/Makefile.chkbss
+# relocs.S is created by the vmlinux postlink step.
+$(obj)/relocs.S: vmlinux
+ @true
+
+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)
generated by cgit (git 2.34.1) at 2025-08-02 22:50:24 +0000