WSL2-Linux-Kernel/arch/arm/boot/compressed/Makefile

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Makefile
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#
# linux/arch/arm/boot/compressed/Makefile
#
# create a compressed vmlinuz image from the original vmlinux
#
ARM: 6617/1: mmc, Add zboot from MMC support for SuperH Mobile ARM This allows a ROM-able zImage to be written to MMC and for SuperH Mobile ARM to boot directly from the MMCIF hardware block. This is achieved by the MaskROM loading the first portion of the image into MERAM and then jumping to it. This portion contains loader code which copies the entire image to SDRAM and jumps to it. From there the zImage boot code proceeds as normal, uncompressing the image into its final location and then jumping to it. Cc: Magnus Damm <magnus.damm@gmail.com> Russell, please consider merging this for 2.6.38. This patch depends on: * "mmc, sh: Move MMCIF_PROGRESS_* into sh_mmcif.h" which will be merged though Paul Mundt's rmobile sh-2.6. The absence of this patch will break the build if the (new) CONFIG_ZBOOT_ROM_MMCIF option is set. There are no subtle side-effects. v2: Addressed comments by Magnus Damm * Fix copyright in vrl4.c * Fix use of #define CONFIG_ZBOOT_ROM_MMCIF in mmcif-sh7372.c * Initialise LED GPIO lines in head-ap4evb.txt instead of mmcif-sh7372.c as this is considered board-specific. v3: Addressed comments made in person by Magnus Damm * Move mmcif_loader to be earlier in the image and reduce the number of blocks of boot program loaded by the MaskRom from 40 to 8 accordingly. * Move LED GPIO initialisation into mmcif_progress_init - This leaves the partner jet script unbloated Other * inline mmcif_update_progress so it is a static inline in a header file v4: * Use htole16() and htole32() in v4rl.c to ensure that the output is little endian v5: Addressed comments by Russell King * Simplify assembly code * Jump to code rather than an address <- bug fix * Use (void __iomem *) as appropriate Roll in mackerel support * This was previously a separate patch, only because of the order in which this code was developed Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-01-11 06:01:08 +03:00
OBJS =
AFLAGS_head.o += -DTEXT_OFFSET=$(TEXT_OFFSET)
HEAD = head.o
ARM: 6617/1: mmc, Add zboot from MMC support for SuperH Mobile ARM This allows a ROM-able zImage to be written to MMC and for SuperH Mobile ARM to boot directly from the MMCIF hardware block. This is achieved by the MaskROM loading the first portion of the image into MERAM and then jumping to it. This portion contains loader code which copies the entire image to SDRAM and jumps to it. From there the zImage boot code proceeds as normal, uncompressing the image into its final location and then jumping to it. Cc: Magnus Damm <magnus.damm@gmail.com> Russell, please consider merging this for 2.6.38. This patch depends on: * "mmc, sh: Move MMCIF_PROGRESS_* into sh_mmcif.h" which will be merged though Paul Mundt's rmobile sh-2.6. The absence of this patch will break the build if the (new) CONFIG_ZBOOT_ROM_MMCIF option is set. There are no subtle side-effects. v2: Addressed comments by Magnus Damm * Fix copyright in vrl4.c * Fix use of #define CONFIG_ZBOOT_ROM_MMCIF in mmcif-sh7372.c * Initialise LED GPIO lines in head-ap4evb.txt instead of mmcif-sh7372.c as this is considered board-specific. v3: Addressed comments made in person by Magnus Damm * Move mmcif_loader to be earlier in the image and reduce the number of blocks of boot program loaded by the MaskRom from 40 to 8 accordingly. * Move LED GPIO initialisation into mmcif_progress_init - This leaves the partner jet script unbloated Other * inline mmcif_update_progress so it is a static inline in a header file v4: * Use htole16() and htole32() in v4rl.c to ensure that the output is little endian v5: Addressed comments by Russell King * Simplify assembly code * Jump to code rather than an address <- bug fix * Use (void __iomem *) as appropriate Roll in mackerel support * This was previously a separate patch, only because of the order in which this code was developed Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-01-11 06:01:08 +03:00
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
#
# 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) $(libfdt_hdrs) \
hyp-stub.S
KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING
ifeq ($(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)
ARM: 7743/1: compressed/head.S: work around new binutils warning In August 2012, Matthew Gretton-Dann checked a change into binutils labelled "Error on obsolete & warn on deprecated registers", apparently as part of ARMv8 support. Apparently, this was supposed to emit the message "Warning: This coprocessor register access is deprecated in ARMv8" when using certain mcr/mrc instructions and building for ARMv8. Unfortunately, the message that is actually emitted appears to be '(null)', which is less helpful in comparison. Even more unfortunately, this is biting us on every single kernel build with a new gas, because arch/arm/boot/compressed/head.S and some other files in that directory are built with -march=all since kernel commit 80cec14a8 "[ARM] Add -march=all to assembly file build in arch/arm/boot/compressed" back in v2.6.28. This patch reverts Russell's nice solution and instead marks the head.S file to be built for armv7-a, which fortunately lets us build all instructions in that file without warnings even on the broken binutils. Without this patch, building anything results in: arch/arm/boot/compressed/head.S: Assembler messages: arch/arm/boot/compressed/head.S:565: Warning: (null) arch/arm/boot/compressed/head.S:676: Warning: (null) arch/arm/boot/compressed/head.S:698: Warning: (null) arch/arm/boot/compressed/head.S:722: Warning: (null) arch/arm/boot/compressed/head.S:726: Warning: (null) arch/arm/boot/compressed/head.S:957: Warning: (null) arch/arm/boot/compressed/head.S:996: Warning: (null) arch/arm/boot/compressed/head.S:997: Warning: (null) arch/arm/boot/compressed/head.S:1027: Warning: (null) arch/arm/boot/compressed/head.S:1035: Warning: (null) arch/arm/boot/compressed/head.S:1046: Warning: (null) arch/arm/boot/compressed/head.S:1060: Warning: (null) arch/arm/boot/compressed/head.S:1092: Warning: (null) arch/arm/boot/compressed/head.S:1094: Warning: (null) arch/arm/boot/compressed/head.S:1095: Warning: (null) arch/arm/boot/compressed/head.S:1102: Warning: (null) arch/arm/boot/compressed/head.S:1134: Warning: (null) Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: stable@vger.kernel.org Cc: Matthew Gretton-Dann <matthew.gretton-dann@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-06-01 01:50:47 +04:00
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: $(ZRELADDR)'; \
echo 'This needs CONFIG_AUTO_ZRELADDR to be set'; \
false; \
fi
efi-obj-$(CONFIG_EFI_STUB) := $(objtree)/drivers/firmware/efi/libstub/lib.a
$(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/$(HEAD) $(obj)/piggy.$(suffix_y).o \
$(addprefix $(obj)/, $(OBJS)) $(lib1funcs) $(ashldi3) \
$(bswapsdi2) $(efi-obj-y) FORCE
@$(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)
AFLAGS_hyp-stub.o := -Wa,-march=armv7-a
$(obj)/hyp-stub.S: $(srctree)/arch/$(SRCARCH)/kernel/hyp-stub.S
$(call cmd,shipped)