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-rw-r--r--kernel/arch/arm/boot/compressed/Makefile190
1 files changed, 190 insertions, 0 deletions
diff --git a/kernel/arch/arm/boot/compressed/Makefile b/kernel/arch/arm/boot/compressed/Makefile
new file mode 100644
index 000000000..6e1fb2b2e
--- /dev/null
+++ b/kernel/arch/arm/boot/compressed/Makefile
@@ -0,0 +1,190 @@
+#
+# linux/arch/arm/boot/compressed/Makefile
+#
+# create a compressed vmlinuz image from the original vmlinux
+#
+
+OBJS =
+
+AFLAGS_head.o += -DTEXT_OFFSET=$(TEXT_OFFSET)
+HEAD = head.o
+OBJS += misc.o decompress.o
+ifeq ($(CONFIG_DEBUG_UNCOMPRESS),y)
+OBJS += debug.o
+endif
+FONTC = $(srctree)/lib/fonts/font_acorn_8x8.c
+
+# string library code (-Os is enforced to keep it much smaller)
+OBJS += string.o
+CFLAGS_string.o := -Os
+
+ifeq ($(CONFIG_ARM_VIRT_EXT),y)
+OBJS += hyp-stub.o
+endif
+
+GCOV_PROFILE := n
+
+#
+# Architecture dependencies
+#
+ifeq ($(CONFIG_ARCH_ACORN),y)
+OBJS += ll_char_wr.o font.o
+endif
+
+ifeq ($(CONFIG_ARCH_SA1100),y)
+OBJS += head-sa1100.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 ($(CONFIG_ARCH_SHMOBILE_LEGACY),y)
+OBJS += head-shmobile.o
+endif
+
+#
+# We now have a PIC decompressor implementation. Decompressors running
+# from RAM should not define ZTEXTADDR. Decompressors running directly
+# from ROM or Flash must define ZTEXTADDR (preferably via the config)
+# FIXME: Previous assignment to ztextaddr-y is lost here. See SHARK
+ifeq ($(CONFIG_ZBOOT_ROM),y)
+ZTEXTADDR := $(CONFIG_ZBOOT_ROM_TEXT)
+ZBSSADDR := $(CONFIG_ZBOOT_ROM_BSS)
+else
+ZTEXTADDR := 0
+ZBSSADDR := ALIGN(8)
+endif
+
+CPPFLAGS_vmlinux.lds := -DTEXT_START="$(ZTEXTADDR)" -DBSS_START="$(ZBSSADDR)"
+
+suffix_$(CONFIG_KERNEL_GZIP) = gzip
+suffix_$(CONFIG_KERNEL_LZO) = lzo
+suffix_$(CONFIG_KERNEL_LZMA) = lzma
+suffix_$(CONFIG_KERNEL_XZ) = xzkern
+suffix_$(CONFIG_KERNEL_LZ4) = lz4
+
+# Borrowed libfdt files for the ATAG compatibility mode
+
+libfdt := fdt_rw.c fdt_ro.c fdt_wip.c fdt.c
+libfdt_hdrs := fdt.h libfdt.h libfdt_internal.h
+
+libfdt_objs := $(addsuffix .o, $(basename $(libfdt)))
+
+$(addprefix $(obj)/,$(libfdt) $(libfdt_hdrs)): $(obj)/%: $(srctree)/scripts/dtc/libfdt/%
+ $(call cmd,shipped)
+
+$(addprefix $(obj)/,$(libfdt_objs) atags_to_fdt.o): \
+ $(addprefix $(obj)/,$(libfdt_hdrs))
+
+ifeq ($(CONFIG_ARM_ATAG_DTB_COMPAT),y)
+OBJS += $(libfdt_objs) atags_to_fdt.o
+endif
+
+targets := vmlinux vmlinux.lds \
+ piggy.$(suffix_y) piggy.$(suffix_y).o \
+ lib1funcs.o lib1funcs.S ashldi3.o ashldi3.S bswapsdi2.o \
+ bswapsdi2.S font.o font.c head.o misc.o $(OBJS)
+
+# Make sure files are removed during clean
+extra-y += piggy.gzip piggy.lzo piggy.lzma piggy.xzkern piggy.lz4 \
+ lib1funcs.S ashldi3.S bswapsdi2.S $(libfdt) $(libfdt_hdrs) \
+ hyp-stub.S
+
+ifeq ($(CONFIG_FUNCTION_TRACER),y)
+ORIG_CFLAGS := $(KBUILD_CFLAGS)
+KBUILD_CFLAGS = $(subst -pg, , $(ORIG_CFLAGS))
+endif
+
+ccflags-y := -fpic -mno-single-pic-base -fno-builtin -I$(obj)
+asflags-y := -DZIMAGE
+
+# Supply kernel BSS size to the decompressor via a linker symbol.
+KBSS_SZ = $(shell $(CROSS_COMPILE)size $(obj)/../../../../vmlinux | \
+ awk 'END{print $$3}')
+LDFLAGS_vmlinux = --defsym _kernel_bss_size=$(KBSS_SZ)
+# Supply ZRELADDR to the decompressor via a linker symbol.
+ifneq ($(CONFIG_AUTO_ZRELADDR),y)
+LDFLAGS_vmlinux += --defsym zreladdr=$(ZRELADDR)
+endif
+ifeq ($(CONFIG_CPU_ENDIAN_BE8),y)
+LDFLAGS_vmlinux += --be8
+endif
+# ?
+LDFLAGS_vmlinux += -p
+# Report unresolved symbol references
+LDFLAGS_vmlinux += --no-undefined
+# Delete all temporary local symbols
+LDFLAGS_vmlinux += -X
+# Next argument is a linker script
+LDFLAGS_vmlinux += -T
+
+# For __aeabi_uidivmod
+lib1funcs = $(obj)/lib1funcs.o
+
+$(obj)/lib1funcs.S: $(srctree)/arch/$(SRCARCH)/lib/lib1funcs.S
+ $(call cmd,shipped)
+
+# For __aeabi_llsl
+ashldi3 = $(obj)/ashldi3.o
+
+$(obj)/ashldi3.S: $(srctree)/arch/$(SRCARCH)/lib/ashldi3.S
+ $(call cmd,shipped)
+
+# For __bswapsi2, __bswapdi2
+bswapsdi2 = $(obj)/bswapsdi2.o
+
+$(obj)/bswapsdi2.S: $(srctree)/arch/$(SRCARCH)/lib/bswapsdi2.S
+ $(call cmd,shipped)
+
+# We need to prevent any GOTOFF relocs being used with references
+# to symbols in the .bss section since we cannot relocate them
+# independently from the rest at run time. This can be achieved by
+# ensuring that no private .bss symbols exist, as global symbols
+# always have a GOT entry which is what we need.
+# The .data section is already discarded by the linker script so no need
+# to bother about it here.
+check_for_bad_syms = \
+bad_syms=$$($(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 )
+
+check_for_multiple_zreladdr = \
+if [ $(words $(ZRELADDR)) -gt 1 -a "$(CONFIG_AUTO_ZRELADDR)" = "" ]; then \
+ echo 'multiple zreladdrs: $(ZRELADDR)'; \
+ echo 'This needs CONFIG_AUTO_ZRELADDR to be set'; \
+ false; \
+fi
+
+$(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/$(HEAD) $(obj)/piggy.$(suffix_y).o \
+ $(addprefix $(obj)/, $(OBJS)) $(lib1funcs) $(ashldi3) \
+ $(bswapsdi2) FORCE
+ @$(check_for_multiple_zreladdr)
+ $(call if_changed,ld)
+ @$(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)/hyp-stub.S: $(srctree)/arch/$(SRCARCH)/kernel/hyp-stub.S
+ $(call cmd,shipped)