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80cec14a83
This allows assembly files to be crafted to cover all ARM CPU types rather than erroring out on instructions only in later CPUs. We are careful in these files to only execute CPU specific code when the CPU ID says we can. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
115 lines
2.7 KiB
Makefile
115 lines
2.7 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 ($(CONFIG_ARCH_CLPS7500),y)
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HEAD = head-clps7500.o
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endif
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ifeq ($(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_BIG_ENDIAN),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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targets := vmlinux vmlinux.lds piggy.gz piggy.o font.o font.c \
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head.o misc.o $(OBJS)
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ifeq ($(CONFIG_FTRACE),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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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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LDFLAGS_vmlinux += -p --no-undefined -X \
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$(shell $(CC) $(KBUILD_CFLAGS) --print-libgcc-file-name) -T
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# Don't allow any static data in misc.o, which
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# would otherwise mess up our GOT table
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CFLAGS_misc.o := -Dstatic=
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$(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/$(HEAD) $(obj)/piggy.o \
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$(addprefix $(obj)/, $(OBJS)) FORCE
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$(call if_changed,ld)
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@:
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$(obj)/piggy.gz: $(obj)/../Image FORCE
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$(call if_changed,gzip)
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$(obj)/piggy.o: $(obj)/piggy.gz FORCE
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CFLAGS_font.o := -Dstatic=
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$(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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