diff options
Diffstat (limited to 'arch/arm/boot/compressed/Makefile')
| -rw-r--r-- | arch/arm/boot/compressed/Makefile | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/arch/arm/boot/compressed/Makefile b/arch/arm/boot/compressed/Makefile new file mode 100644 index 00000000..23aad072 --- /dev/null +++ b/arch/arm/boot/compressed/Makefile @@ -0,0 +1,152 @@ +# +# linux/arch/arm/boot/compressed/Makefile +# +# create a compressed vmlinuz image from the original vmlinux +# + +OBJS = + +# Ensure that mmcif loader code appears early in the image +# to minimise that number of bocks that have to be read in +# order to load it. +ifeq ($(CONFIG_ZBOOT_ROM_MMCIF),y) +ifeq ($(CONFIG_ARCH_SH7372),y) +OBJS += mmcif-sh7372.o +endif +endif + +AFLAGS_head.o += -DTEXT_OFFSET=$(TEXT_OFFSET) +HEAD = head.o +OBJS += misc.o decompress.o +FONTC = $(srctree)/drivers/video/console/font_acorn_8x8.c + +# +# Architecture dependencies +# +ifeq ($(CONFIG_ARCH_ACORN),y) +OBJS += ll_char_wr.o font.o +endif + +ifeq ($(CONFIG_ARCH_SHARK),y) +OBJS += head-shark.o ofw-shark.o +endif + +ifeq ($(CONFIG_ARCH_P720T),y) +# Borrow this code from SA1100 +OBJS += head-sa1100.o +endif + +ifeq ($(CONFIG_ARCH_SA1100),y) +OBJS += head-sa1100.o +endif + +ifeq ($(CONFIG_ARCH_VT8500),y) +OBJS += head-vt8500.o +endif + +ifeq ($(CONFIG_CPU_XSCALE),y) +OBJS += head-xscale.o +endif + +ifeq ($(CONFIG_PXA_SHARPSL_DETECT_MACH_ID),y) +OBJS += head-sharpsl.o +endif + +ifeq ($(CONFIG_CPU_ENDIAN_BE32),y) +ifeq ($(CONFIG_CPU_CP15),y) +OBJS += big-endian.o +else +# The endian should be set by h/w design. +endif +endif + +ifeq ($(CONFIG_ARCH_SHMOBILE),y) +OBJS += head-shmobile.o +endif + +# +# We now have a PIC decompressor implementation. Decompressors running +# from RAM should not define ZTEXTADDR. Decompressors running directly +# from ROM or Flash must define ZTEXTADDR (preferably via the config) +# FIXME: Previous assignment to ztextaddr-y is lost here. See SHARK +ifeq ($(CONFIG_ZBOOT_ROM),y) +ZTEXTADDR := $(CONFIG_ZBOOT_ROM_TEXT) +ZBSSADDR := $(CONFIG_ZBOOT_ROM_BSS) +else +ZTEXTADDR := 0 +ZBSSADDR := ALIGN(8) +endif + +SEDFLAGS = s/TEXT_START/$(ZTEXTADDR)/;s/BSS_START/$(ZBSSADDR)/ + +suffix_$(CONFIG_KERNEL_GZIP) = gzip +suffix_$(CONFIG_KERNEL_LZO) = lzo +suffix_$(CONFIG_KERNEL_LZMA) = lzma + +targets := vmlinux vmlinux.lds \ + piggy.$(suffix_y) piggy.$(suffix_y).o \ + font.o font.c head.o misc.o $(OBJS) + +# Make sure files are removed during clean +extra-y += piggy.gzip piggy.lzo piggy.lzma lib1funcs.S + +ifeq ($(CONFIG_FUNCTION_TRACER),y) +ORIG_CFLAGS := $(KBUILD_CFLAGS) +KBUILD_CFLAGS = $(subst -pg, , $(ORIG_CFLAGS)) +endif + +ccflags-y := -fpic -fno-builtin +asflags-y := -Wa,-march=all + +# Supply ZRELADDR to the decompressor via a linker symbol. +ifneq ($(CONFIG_AUTO_ZRELADDR),y) +LDFLAGS_vmlinux += --defsym zreladdr=$(ZRELADDR) +endif +ifeq ($(CONFIG_CPU_ENDIAN_BE8),y) +LDFLAGS_vmlinux += --be8 +endif +# ? +LDFLAGS_vmlinux += -p +# Report unresolved symbol references +LDFLAGS_vmlinux += --no-undefined +# Delete all temporary local symbols +LDFLAGS_vmlinux += -X +# Next argument is a linker script +LDFLAGS_vmlinux += -T + +# For __aeabi_uidivmod +lib1funcs = $(obj)/lib1funcs.o + +$(obj)/lib1funcs.S: $(srctree)/arch/$(SRCARCH)/lib/lib1funcs.S FORCE + $(call cmd,shipped) + +# We need to prevent any GOTOFF relocs being used with references +# to symbols in the .bss section since we cannot relocate them +# independently from the rest at run time. This can be achieved by +# ensuring that no private .bss symbols exist, as global symbols +# always have a GOT entry which is what we need. +# The .data section is already discarded by the linker script so no need +# to bother about it here. +check_for_bad_syms = \ +bad_syms=$$($(CROSS_COMPILE)nm $@ | sed -n 's/^.\{8\} [bc] \(.*\)/\1/p') && \ +[ -z "$$bad_syms" ] || \ + ( echo "following symbols must have non local/private scope:" >&2; \ + echo "$$bad_syms" >&2; rm -f $@; false ) + +$(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/$(HEAD) $(obj)/piggy.$(suffix_y).o \ + $(addprefix $(obj)/, $(OBJS)) $(lib1funcs) FORCE + $(call if_changed,ld) + @$(check_for_bad_syms) + +$(obj)/piggy.$(suffix_y): $(obj)/../Image FORCE + $(call if_changed,$(suffix_y)) + +$(obj)/piggy.$(suffix_y).o: $(obj)/piggy.$(suffix_y) FORCE + +CFLAGS_font.o := -Dstatic= + +$(obj)/font.c: $(FONTC) + $(call cmd,shipped) + +$(obj)/vmlinux.lds: $(obj)/vmlinux.lds.in arch/arm/boot/Makefile $(KCONFIG_CONFIG) + @sed "$(SEDFLAGS)" < $< > $@ |