76 lines
2.4 KiB
Makefile
76 lines
2.4 KiB
Makefile
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# SPDX-License-Identifier: GPL-2.0-only
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#
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# linux/arch/parisc/boot/compressed/Makefile
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#
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# create a compressed self-extracting vmlinux image from the original vmlinux
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#
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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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OBJECTS := head.o real2.o firmware.o misc.o piggy.o
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targets := vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2
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targets += vmlinux.bin.xz vmlinux.bin.lzma vmlinux.bin.lzo vmlinux.bin.lz4
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targets += $(OBJECTS) sizes.h
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KBUILD_CFLAGS := -D__KERNEL__ -O2 -DBOOTLOADER
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KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING
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KBUILD_CFLAGS += -fno-strict-aliasing
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KBUILD_CFLAGS += $(cflags-y) -fno-delete-null-pointer-checks -fno-builtin-printf
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KBUILD_CFLAGS += -fno-PIE -mno-space-regs -mdisable-fpregs -Os
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ifndef CONFIG_64BIT
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KBUILD_CFLAGS += -mfast-indirect-calls
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endif
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LDFLAGS_vmlinux := -X -e startup --as-needed -T
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$(obj)/vmlinux: $(obj)/vmlinux.lds $(addprefix $(obj)/, $(OBJECTS)) $(LIBGCC) FORCE
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$(call if_changed,ld)
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sed-sizes := -e 's/^\([0-9a-fA-F]*\) . \(__bss_start\|_end\|parisc_kernel_start\)$$/\#define SZ\2 0x\1/p'
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quiet_cmd_sizes = GEN $@
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cmd_sizes = $(NM) $< | sed -n $(sed-sizes) > $@
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$(obj)/sizes.h: vmlinux FORCE
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$(call if_changed,sizes)
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AFLAGS_head.o += -I$(objtree)/$(obj) -DBOOTLOADER
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$(obj)/head.o: $(obj)/sizes.h
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CFLAGS_misc.o += -I$(objtree)/$(obj)
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$(obj)/misc.o: $(obj)/sizes.h
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AFLAGS_real2.o += -DBOOTLOADER
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CPPFLAGS_vmlinux.lds += -I$(objtree)/$(obj) -DBOOTLOADER
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$(obj)/vmlinux.lds: $(obj)/sizes.h
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OBJCOPYFLAGS_vmlinux.bin := -R .comment -R .note -S
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$(obj)/vmlinux.bin: vmlinux FORCE
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$(call if_changed,objcopy)
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suffix-$(CONFIG_KERNEL_GZIP) := gz
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suffix-$(CONFIG_KERNEL_BZIP2) := bz2
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suffix-$(CONFIG_KERNEL_LZ4) := lz4
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suffix-$(CONFIG_KERNEL_LZMA) := lzma
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suffix-$(CONFIG_KERNEL_LZO) := lzo
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suffix-$(CONFIG_KERNEL_XZ) := xz
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$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
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$(call if_changed,gzip)
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$(obj)/vmlinux.bin.bz2: $(obj)/vmlinux.bin FORCE
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$(call if_changed,bzip2_with_size)
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$(obj)/vmlinux.bin.lz4: $(obj)/vmlinux.bin FORCE
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$(call if_changed,lz4_with_size)
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$(obj)/vmlinux.bin.lzma: $(obj)/vmlinux.bin FORCE
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$(call if_changed,lzma_with_size)
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$(obj)/vmlinux.bin.lzo: $(obj)/vmlinux.bin FORCE
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$(call if_changed,lzo_with_size)
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$(obj)/vmlinux.bin.xz: $(obj)/vmlinux.bin FORCE
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$(call if_changed,xzkern_with_size)
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LDFLAGS_piggy.o := -r --format binary --oformat $(LD_BFD) -T
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$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.$(suffix-y) FORCE
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$(call if_changed,ld)
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