e7db7b4270
- changes to ach/arch/boot/Makefile to make it easier to add new compression types - new piggy.lzo.S necessary for lzo compression - changes in arch/arm/boot/compressed/misc.c to allow the use of lzo or gzip, depending on the config - Kconfig support Signed-off-by: Albin Tonnerre <albin.tonnerre@free-electrons.com> Tested-by: Wu Zhangjin <wuzhangjin@gmail.com> Acked-by: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Tested-by: Russell King <rmk@arm.linux.org.uk> Acked-by: Russell King <rmk@arm.linux.org.uk> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Martin Michlmayr <tbm@cyrius.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
129 lines
3.1 KiB
Makefile
129 lines
3.1 KiB
Makefile
#
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# linux/arch/arm/boot/compressed/Makefile
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#
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# create a compressed vmlinuz image from the original vmlinux
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#
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HEAD = head.o
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OBJS = misc.o
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FONTC = $(srctree)/drivers/video/console/font_acorn_8x8.c
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#
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# Architecture dependencies
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#
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ifeq ($(CONFIG_ARCH_ACORN),y)
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OBJS += ll_char_wr.o font.o
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endif
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ifeq ($(CONFIG_ARCH_SHARK),y)
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OBJS += head-shark.o ofw-shark.o
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endif
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ifeq ($(CONFIG_ARCH_L7200),y)
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OBJS += head-l7200.o
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endif
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ifeq ($(CONFIG_ARCH_P720T),y)
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# Borrow this code from SA1100
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OBJS += head-sa1100.o
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endif
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ifeq ($(CONFIG_ARCH_SA1100),y)
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OBJS += head-sa1100.o
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endif
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ifeq ($(CONFIG_CPU_XSCALE),y)
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OBJS += head-xscale.o
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endif
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ifeq ($(CONFIG_PXA_SHARPSL),y)
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OBJS += head-sharpsl.o
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endif
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ifeq ($(CONFIG_CPU_ENDIAN_BE32),y)
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ifeq ($(CONFIG_CPU_CP15),y)
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OBJS += big-endian.o
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else
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# The endian should be set by h/w design.
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endif
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endif
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#
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# We now have a PIC decompressor implementation. Decompressors running
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# from RAM should not define ZTEXTADDR. Decompressors running directly
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# from ROM or Flash must define ZTEXTADDR (preferably via the config)
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# FIXME: Previous assignment to ztextaddr-y is lost here. See SHARK
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ifeq ($(CONFIG_ZBOOT_ROM),y)
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ZTEXTADDR := $(CONFIG_ZBOOT_ROM_TEXT)
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ZBSSADDR := $(CONFIG_ZBOOT_ROM_BSS)
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else
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ZTEXTADDR := 0
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ZBSSADDR := ALIGN(4)
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endif
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SEDFLAGS = s/TEXT_START/$(ZTEXTADDR)/;s/BSS_START/$(ZBSSADDR)/
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suffix_$(CONFIG_KERNEL_GZIP) = gzip
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suffix_$(CONFIG_KERNEL_LZO) = lzo
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targets := vmlinux vmlinux.lds \
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piggy.$(suffix_y) piggy.$(suffix_y).o \
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font.o font.c head.o misc.o $(OBJS)
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ifeq ($(CONFIG_FUNCTION_TRACER),y)
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ORIG_CFLAGS := $(KBUILD_CFLAGS)
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KBUILD_CFLAGS = $(subst -pg, , $(ORIG_CFLAGS))
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endif
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EXTRA_CFLAGS := -fpic -fno-builtin
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EXTRA_AFLAGS := -Wa,-march=all
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# Supply ZRELADDR, INITRD_PHYS and PARAMS_PHYS to the decompressor via
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# linker symbols. We only define initrd_phys and params_phys if the
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# machine class defined the corresponding makefile variable.
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LDFLAGS_vmlinux := --defsym zreladdr=$(ZRELADDR)
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ifeq ($(CONFIG_CPU_ENDIAN_BE8),y)
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LDFLAGS_vmlinux += --be8
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endif
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ifneq ($(INITRD_PHYS),)
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LDFLAGS_vmlinux += --defsym initrd_phys=$(INITRD_PHYS)
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endif
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ifneq ($(PARAMS_PHYS),)
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LDFLAGS_vmlinux += --defsym params_phys=$(PARAMS_PHYS)
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endif
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# ?
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LDFLAGS_vmlinux += -p
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# Report unresolved symbol references
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LDFLAGS_vmlinux += --no-undefined
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# Delete all temporary local symbols
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LDFLAGS_vmlinux += -X
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# Next argument is a linker script
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LDFLAGS_vmlinux += -T
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# For __aeabi_uidivmod
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lib1funcs = $(obj)/lib1funcs.o
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$(obj)/lib1funcs.S: $(srctree)/arch/$(SRCARCH)/lib/lib1funcs.S FORCE
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$(call cmd,shipped)
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# Don't allow any static data in misc.o, which
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# would otherwise mess up our GOT table
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CFLAGS_misc.o := -Dstatic=
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$(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/$(HEAD) $(obj)/piggy.$(suffix_y).o \
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$(addprefix $(obj)/, $(OBJS)) $(lib1funcs) FORCE
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$(call if_changed,ld)
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@:
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$(obj)/piggy.$(suffix_y): $(obj)/../Image FORCE
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$(call if_changed,$(suffix_y))
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$(obj)/piggy.$(suffix_y).o: $(obj)/piggy.$(suffix_y) FORCE
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CFLAGS_font.o := -Dstatic=
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$(obj)/font.c: $(FONTC)
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$(call cmd,shipped)
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$(obj)/vmlinux.lds: $(obj)/vmlinux.lds.in arch/arm/boot/Makefile .config
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@sed "$(SEDFLAGS)" < $< > $@
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