arch/sh/boot/Makefile

Source file repositories/reference/linux-study-clean/arch/sh/boot/Makefile

File Facts

System
Linux kernel
Corpus path
arch/sh/boot/Makefile
Extension
[no extension]
Size
3344 bytes
Lines
116
Domain
Architecture Layer
Bucket
arch/sh
Inferred role
Architecture Layer: build/configuration rule
Status
atlas-only

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

#
# arch/sh/boot/Makefile
#
# This file is subject to the terms and conditions of the GNU General Public
# License.  See the file "COPYING" in the main directory of this archive
# for more details.
#
# Copyright (C) 1999 Stuart Menefy
#

#
# Assign safe dummy values if these variables are not defined,
# in order to suppress error message.
#
CONFIG_PAGE_OFFSET	?= 0x80000000
CONFIG_MEMORY_START	?= 0x0c000000
CONFIG_BOOT_LINK_OFFSET	?= 0x00800000
CONFIG_ZERO_PAGE_OFFSET	?= 0x00001000
CONFIG_ENTRY_OFFSET	?= 0x00001000
CONFIG_PHYSICAL_START	?= $(CONFIG_MEMORY_START)

suffix_y := bin
suffix_$(CONFIG_KERNEL_GZIP)	:= gz
suffix_$(CONFIG_KERNEL_BZIP2)	:= bz2
suffix_$(CONFIG_KERNEL_LZMA)	:= lzma
suffix_$(CONFIG_KERNEL_XZ)	:= xz
suffix_$(CONFIG_KERNEL_LZO)	:= lzo

targets := zImage vmlinux.srec romImage uImage uImage.srec uImage.gz \
	   uImage.bz2 uImage.lzma uImage.xz uImage.lzo uImage.bin \
	   vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma \
	   vmlinux.bin.xz vmlinux.bin.lzo
subdir- := compressed romimage

$(obj)/zImage: $(obj)/compressed/vmlinux FORCE
	$(call if_changed,objcopy)
	@echo '  Kernel: $@ is ready'

$(obj)/compressed/vmlinux: FORCE
	$(Q)$(MAKE) $(build)=$(obj)/compressed $@

$(obj)/romImage: $(obj)/romimage/vmlinux FORCE
	$(call if_changed,objcopy)
	@echo '  Kernel: $@ is ready'

$(obj)/romimage/vmlinux: $(obj)/zImage FORCE
	$(Q)$(MAKE) $(build)=$(obj)/romimage $@

KERNEL_MEMORY	:= $(shell /bin/bash -c 'printf "0x%08x" \
		     $$[$(CONFIG_PHYSICAL_START) & 0x1fffffff]')

KERNEL_LOAD	:= $(shell /bin/bash -c 'printf "0x%08x" \
		     $$[$(CONFIG_PAGE_OFFSET)  + \
			$(KERNEL_MEMORY) + \
			$(CONFIG_ZERO_PAGE_OFFSET)]')

KERNEL_ENTRY	:= $(shell /bin/bash -c 'printf "0x%08x" \
		     $$[$(CONFIG_PAGE_OFFSET)  + \
			$(KERNEL_MEMORY) + \
			$(CONFIG_ZERO_PAGE_OFFSET) + $(CONFIG_ENTRY_OFFSET)]')

UIMAGE_LOADADDR = $(KERNEL_LOAD)
UIMAGE_ENTRYADDR = $(KERNEL_ENTRY)

$(obj)/vmlinux.bin: vmlinux FORCE
	$(call if_changed,objcopy)

$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
	$(call if_changed,gzip)

Annotation

Implementation Notes