# 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 ($(CONFIG_ZBOOT_ROM_MMCIF),y)
+OBJS += mmcif-sh7372.o
+endif
+
+# Ensure that SDHI loader code appears early in the image
+# to minimise that number of bocks that have to be read in
+# order to load it.
+ifeq ($(CONFIG_ZBOOT_ROM_SH_MOBILE_SDHI),y)
+OBJS += sdhi-shmobile.o
+OBJS += sdhi-sh7372.o
+endif
+
+AFLAGS_head.o += -DTEXT_OFFSET=$(TEXT_OFFSET)
HEAD = head.o
-OBJS = misc.o
-FONTC = drivers/video/console/font_acorn_8x8.c
+OBJS += misc.o decompress.o
+FONTC = $(srctree)/drivers/video/console/font_acorn_8x8.c
-FONT = $(addprefix ../../../../drivers/video/console/, font_acorn_8x8.o)
+# string library code (-Os is enforced to keep it much smaller)
+OBJS += string.o
+CFLAGS_string.o := -Os
#
# Architecture dependencies
#
ifeq ($(CONFIG_ARCH_ACORN),y)
-OBJS += ll_char_wr.o $(FONT)
+OBJS += ll_char_wr.o font.o
endif
ifeq ($(CONFIG_ARCH_SHARK),y)
OBJS += head-shark.o ofw-shark.o
endif
-ifeq ($(CONFIG_ARCH_L7200),y)
-OBJS += head-l7200.o
-endif
-
-ifeq ($(CONFIG_ARCH_CLPS7500),y)
-HEAD = head-clps7500.o
-endif
-
ifeq ($(CONFIG_ARCH_P720T),y)
# Borrow this code from SA1100
OBJS += head-sa1100.o
OBJS += head-sa1100.o
endif
+ifeq ($(CONFIG_ARCH_VT8500),y)
+OBJS += head-vt8500.o
+endif
+
ifeq ($(CONFIG_CPU_XSCALE),y)
OBJS += head-xscale.o
endif
-ifeq ($(CONFIG_PXA_SHARPSL),y)
+ifeq ($(CONFIG_PXA_SHARPSL_DETECT_MACH_ID),y)
OBJS += head-sharpsl.o
endif
-ifeq ($(CONFIG_DEBUG_ICEDCC),y)
-OBJS += ice-dcc.o
+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 ($(CONFIG_CPU_BIG_ENDIAN),y)
-OBJS += big-endian.o
+ifeq ($(CONFIG_ARCH_SHMOBILE),y)
+OBJS += head-shmobile.o
endif
#
ZBSSADDR := $(CONFIG_ZBOOT_ROM_BSS)
else
ZTEXTADDR := 0
-ZBSSADDR := ALIGN(4)
+ZBSSADDR := ALIGN(8)
endif
SEDFLAGS = s/TEXT_START/$(ZTEXTADDR)/;s/BSS_START/$(ZBSSADDR)/
-targets := vmlinux vmlinux.lds piggy.gz piggy.o $(FONT) \
- head.o misc.o $(OBJS)
-EXTRA_CFLAGS := -fpic
-EXTRA_AFLAGS :=
+suffix_$(CONFIG_KERNEL_GZIP) = gzip
+suffix_$(CONFIG_KERNEL_LZO) = lzo
+suffix_$(CONFIG_KERNEL_LZMA) = lzma
+
+# 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 $(libfdt)))
-# Supply ZRELADDR, INITRD_PHYS and PARAMS_PHYS to the decompressor via
-# linker symbols. We only define initrd_phys and params_phys if the
-# machine class defined the corresponding makefile variable.
-LDFLAGS_vmlinux := --defsym zreladdr=$(ZRELADDR)
-ifneq ($(INITRD_PHYS),)
-LDFLAGS_vmlinux += --defsym initrd_phys=$(INITRD_PHYS)
+$(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 += $(libfdt_objs) atags_to_fdt.o
endif
-ifneq ($(PARAMS_PHYS),)
-LDFLAGS_vmlinux += --defsym params_phys=$(PARAMS_PHYS)
+
+targets := vmlinux vmlinux.lds \
+ piggy.$(suffix_y) piggy.$(suffix_y).o \
+ lib1funcs.o lib1funcs.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 lib1funcs.S $(libfdt) $(libfdt_hdrs)
+
+ifeq ($(CONFIG_FUNCTION_TRACER),y)
+ORIG_CFLAGS := $(KBUILD_CFLAGS)
+KBUILD_CFLAGS = $(subst -pg, , $(ORIG_CFLAGS))
endif
-LDFLAGS_vmlinux += -p --no-undefined -X \
- $(shell $(CC) $(CFLAGS) --print-libgcc-file-name) -T
-# Don't allow any static data in misc.o, which
-# would otherwise mess up our GOT table
-CFLAGS_misc.o := -Dstatic=
+ccflags-y := -fpic -fno-builtin -I$(obj)
+asflags-y := -Wa,-march=all
-$(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/$(HEAD) $(obj)/piggy.o \
- $(addprefix $(obj)/, $(OBJS)) FORCE
+# Supply kernel BSS size to the decompressor via a linker symbol.
+KBSS_SZ = $(shell size $(obj)/../../../../vmlinux | awk 'END{print $$3}')
+LDFLAGS_vmlinux = --defsym _kernel_bss_size=$(KBSS_SZ)
+# Supply ZRELADDR to the decompressor via a linker symbol.
+ifneq ($(CONFIG_AUTO_ZRELADDR),y)
+LDFLAGS_vmlinux += --defsym zreladdr=$(ZRELADDR)
+endif
+ifeq ($(CONFIG_CPU_ENDIAN_BE8),y)
+LDFLAGS_vmlinux += --be8
+endif
+# ?
+LDFLAGS_vmlinux += -p
+# Report unresolved symbol references
+LDFLAGS_vmlinux += --no-undefined
+# Delete all temporary local symbols
+LDFLAGS_vmlinux += -X
+# Next argument is a linker script
+LDFLAGS_vmlinux += -T
+
+# For __aeabi_uidivmod
+lib1funcs = $(obj)/lib1funcs.o
+
+$(obj)/lib1funcs.S: $(srctree)/arch/$(SRCARCH)/lib/lib1funcs.S
+ $(call cmd,shipped)
+
+# We need to prevent any GOTOFF relocs being used with references
+# to symbols in the .bss section since we cannot relocate them
+# independently from the rest at run time. This can be achieved by
+# ensuring that no private .bss symbols exist, as global symbols
+# always have a GOT entry which is what we need.
+# The .data section is already discarded by the linker script so no need
+# to bother about it here.
+check_for_bad_syms = \
+bad_syms=$$($(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)) $(lib1funcs) FORCE
+ @$(check_for_multiple_zreladdr)
$(call if_changed,ld)
- @:
+ @$(check_for_bad_syms)
-$(obj)/piggy.gz: $(obj)/../Image FORCE
- $(call if_changed,gzip)
+$(obj)/piggy.$(suffix_y): $(obj)/../Image FORCE
+ $(call if_changed,$(suffix_y))
-$(obj)/piggy.o: $(obj)/piggy.gz FORCE
+$(obj)/piggy.$(suffix_y).o: $(obj)/piggy.$(suffix_y) FORCE
-CFLAGS_font_acorn_8x8.o := -Dstatic=
+CFLAGS_font.o := -Dstatic=
-$(obj)/vmlinux.lds: $(obj)/vmlinux.lds.in arch/arm/boot/Makefile .config
- @sed "$(SEDFLAGS)" < $< > $@
-
-$(obj)/misc.o: $(obj)/misc.c include/asm/arch/uncompress.h lib/inflate.c
+$(obj)/font.c: $(FONTC)
+ $(call cmd,shipped)
+$(obj)/vmlinux.lds: $(obj)/vmlinux.lds.in arch/arm/boot/Makefile $(KCONFIG_CONFIG)
+ @sed "$(SEDFLAGS)" < $< > $@