mirror of https://gitee.com/openkylin/linux.git
[CRIS] Remove links from CRIS build
Remove the links to architecture and machine dependent directories (boot, lib, drivers, arch, mach) The links were created and used mostly from the arch/cris/Makefile, so why not dispense with them altogether? Changed $(ARCH) to "cris" in Makefile, it is easier to read this way. The CRISv32 head.S common files for the kernel and compressed images needed to be modified to use ifdefs instead of using the now removed mach link. Since there are only two versions, this is not a huge loss in readability. The link to vmlinux.lds.S is also replaced with a merged version which uses ifdefs to select the correct layout. System.map before and after are identical. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com> Acked-by: Sam Ravnborg <sam@ravnborg.org>
This commit is contained in:
Jesper Nilsson
parent
0365f707c9
commit
c5ec6fb08d
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@ -23,7 +23,8 @@ mach-$(CONFIG_ETRAXFS) := fs
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ifneq ($(arch-y),)
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SARCH := arch-$(arch-y)
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inc := -Iarch/cris/include/arch-$(arch-y) -Iarch/cris/include/arch-$(arch-y)/arch
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inc := -Iarch/cris/include/$(SARCH)
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inc += -Iarch/cris/include/$(SARCH)/arch
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else
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SARCH :=
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inc :=
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@ -52,72 +53,48 @@ KBUILD_CFLAGS := $(subst -fomit-frame-pointer,,$(KBUILD_CFLAGS)) -g
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KBUILD_CFLAGS += -fno-omit-frame-pointer
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endif
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head-y := arch/$(ARCH)/$(SARCH)/kernel/head.o
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head-y := arch/cris/$(SARCH)/kernel/head.o
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LIBGCC = $(shell $(CC) $(KBUILD_CFLAGS) -print-file-name=libgcc.a)
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core-y += arch/$(ARCH)/kernel/ arch/$(ARCH)/mm/
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core-y += arch/$(ARCH)/$(SARCH)/kernel/ arch/$(ARCH)/$(SARCH)/mm/
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core-y += arch/cris/kernel/ arch/cris/mm/
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core-y += arch/cris/$(SARCH)/kernel/ arch/cris/$(SARCH)/mm/
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ifdef CONFIG_ETRAX_ARCH_V32
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core-y += arch/$(ARCH)/$(SARCH)/$(MACH)/
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core-y += arch/cris/$(SARCH)/$(MACH)/
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endif
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drivers-y += arch/$(ARCH)/$(SARCH)/drivers/
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libs-y += arch/$(ARCH)/$(SARCH)/lib/ $(LIBGCC)
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drivers-y += arch/cris/$(SARCH)/drivers/
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libs-y += arch/cris/$(SARCH)/lib/ $(LIBGCC)
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# cris source path
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SRC_ARCH = $(srctree)/arch/$(ARCH)
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SRC_ARCH = $(srctree)/arch/cris
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# cris object files path
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OBJ_ARCH = $(objtree)/arch/$(ARCH)
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OBJ_ARCH = $(objtree)/arch/cris
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boot := arch/$(ARCH)/boot
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MACHINE := arch/$(ARCH)/$(SARCH)
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boot := arch/cris/$(SARCH)/boot
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MACHINE := arch/cris/$(SARCH)
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all: zImage
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zImage Image: vmlinux
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$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
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archprepare: $(SRC_ARCH)/.links FORCE
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# Create some links to make all tools happy
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$(SRC_ARCH)/.links:
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@rm -rf $(SRC_ARCH)/drivers
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@ln -sfn $(SARCH)/drivers $(SRC_ARCH)/drivers
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@rm -rf $(SRC_ARCH)/boot
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@ln -sfn $(SARCH)/boot $(SRC_ARCH)/boot
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@rm -rf $(SRC_ARCH)/lib
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@ln -sfn $(SARCH)/lib $(SRC_ARCH)/lib
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@rm -f $(SRC_ARCH)/arch/mach
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@rm -rf $(SRC_ARCH)/arch
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@ln -sfn $(SARCH) $(SRC_ARCH)/arch
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ifdef CONFIG_ETRAX_ARCH_V32
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@ln -sfn ../$(SARCH)/$(MACH) $(SRC_ARCH)/arch/mach
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endif
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@rm -rf $(SRC_ARCH)/kernel/vmlinux.lds.S
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@ln -sfn ../$(SARCH)/vmlinux.lds.S $(SRC_ARCH)/kernel/vmlinux.lds.S
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@touch $@
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archprepare:
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archclean:
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$(Q)if [ -e arch/$(ARCH)/boot ]; then \
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$(MAKE) $(clean)=arch/$(ARCH)/boot; \
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$(Q)if [ -e arch/cris/$(SARCH)/boot ]; then \
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$(MAKE) $(clean)=arch/cris/$(SARCH)/boot; \
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fi
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CLEAN_FILES += \
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$(MACHINE)/boot/zImage \
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$(MACHINE)/boot/compressed/decompress.bin \
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$(MACHINE)/boot/compressed/piggy.gz \
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$(MACHINE)/boot/rescue/rescue.bin \
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$(SRC_ARCH)/.links
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$(MACHINE)/boot/rescue/rescue.bin
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MRPROPER_FILES += \
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$(SRC_ARCH)/drivers \
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$(SRC_ARCH)/boot \
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$(SRC_ARCH)/lib \
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$(SRC_ARCH)/arch \
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$(SRC_ARCH)/kernel/vmlinux.lds.S
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# MRPROPER_FILES +=
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define archhelp
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echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
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echo '* Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
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echo '* zImage - Compressed kernel image (arch/cris/boot/zImage)'
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echo '* Image - Uncompressed kernel image (arch/cris/boot/Image)'
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endef
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@ -1,118 +0,0 @@
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/* ld script to make the Linux/CRIS kernel
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* Authors: Bjorn Wesen (bjornw@axis.com)
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*
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* It is VERY DANGEROUS to fiddle around with the symbols in this
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* script. It is for example quite vital that all generated sections
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* that are used are actually named here, otherwise the linker will
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* put them at the end, where the init stuff is which is FREED after
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* the kernel has booted.
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*/
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#include <asm-generic/vmlinux.lds.h>
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#include <asm/page.h>
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jiffies = jiffies_64;
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SECTIONS
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{
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. = DRAM_VIRTUAL_BASE;
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dram_start = .;
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ibr_start = .;
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. = . + 0x4000; /* see head.S and pages reserved at the start */
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_text = .; /* Text and read-only data */
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text_start = .; /* lots of aliases */
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_stext = .;
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__stext = .;
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.text : {
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TEXT_TEXT
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SCHED_TEXT
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LOCK_TEXT
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*(.fixup)
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*(.text.__*)
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}
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_etext = . ; /* End of text section */
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__etext = .;
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. = ALIGN(4); /* Exception table */
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__start___ex_table = .;
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__ex_table : { *(__ex_table) }
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__stop___ex_table = .;
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RODATA
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. = ALIGN (4);
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___data_start = . ;
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__Sdata = . ;
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.data : { /* Data */
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DATA_DATA
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}
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__edata = . ; /* End of data section */
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_edata = . ;
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. = ALIGN(PAGE_SIZE); /* init_task and stack, must be aligned */
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.data.init_task : { *(.data.init_task) }
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. = ALIGN(PAGE_SIZE); /* Init code and data */
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__init_begin = .;
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.init.text : {
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_sinittext = .;
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INIT_TEXT
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_einittext = .;
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}
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.init.data : { INIT_DATA }
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. = ALIGN(16);
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__setup_start = .;
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.init.setup : { *(.init.setup) }
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__setup_end = .;
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.initcall.init : {
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__initcall_start = .;
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INITCALLS
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__initcall_end = .;
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}
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.con_initcall.init : {
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__con_initcall_start = .;
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*(.con_initcall.init)
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__con_initcall_end = .;
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}
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SECURITY_INIT
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#ifdef CONFIG_BLK_DEV_INITRD
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.init.ramfs : {
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__initramfs_start = .;
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*(.init.ramfs)
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__initramfs_end = .;
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}
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#endif
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__vmlinux_end = .; /* last address of the physical file */
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/*
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* We fill to the next page, so we can discard all init
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* pages without needing to consider what payload might be
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* appended to the kernel image.
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*/
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. = ALIGN(PAGE_SIZE);
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__init_end = .;
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__data_end = . ; /* Move to _edata ? */
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__bss_start = .; /* BSS */
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.bss : {
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*(COMMON)
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*(.bss)
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}
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. = ALIGN (0x20);
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_end = .;
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__end = .;
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/* Sections to be discarded */
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/DISCARD/ : {
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EXIT_TEXT
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EXIT_DATA
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*(.exitcall.exit)
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}
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dram_end = dram_start + CONFIG_ETRAX_DRAM_SIZE*1024*1024;
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}
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@ -28,7 +28,13 @@ _start:
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beq dram_init_finished
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nop
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#include "../../mach/dram_init.S"
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#if defined CONFIG_ETRAXFS
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#include "../../mach-fs/dram_init.S"
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#elif defined CONFIG_CRIS_MACH_ARTPEC3
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#include "../../mach-a3/dram_init.S"
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#else
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#error Only ETRAXFS and ARTPEC-3 supported!
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#endif
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dram_init_finished:
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@ -130,4 +136,10 @@ _cmd_line_addr:
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_boot_source:
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.dword 0
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#include "../../mach/hw_settings.S"
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#if defined CONFIG_ETRAXFS
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#include "../../mach-fs/hw_settings.S"
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#elif defined CONFIG_CRIS_MACH_ARTPEC3
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#include "../../mach-a3/hw_settings.S"
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#else
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#error Only ETRAXFS and ARTPEC-3 supported!
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#endif
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@ -10,8 +10,9 @@
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* The macros found in mmu_defs_asm.h uses the ## concatenation operator, so
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* -traditional must not be used when assembling this file.
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*/
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#include <hwregs/reg_rdwr.h>
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#include <linux/autoconf.h>
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#include <arch/memmap.h>
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#include <hwregs/reg_rdwr.h>
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#include <hwregs/intr_vect.h>
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#include <hwregs/asm/mmu_defs_asm.h>
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#include <hwregs/asm/reg_map_asm.h>
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@ -217,7 +218,14 @@ _inflash:
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beq _dram_initialized
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nop
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#include "../mach/dram_init.S"
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#if defined CONFIG_ETRAXFS
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#include "../mach-fs/dram_init.S"
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#elif defined CONFIG_CRIS_MACH_ARTPEC3
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#include "../mach-a3/dram_init.S"
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#else
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#error Only ETRAXFS and ARTPEC-3 supported!
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#endif
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_dram_initialized:
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;; Copy the text and data section to DRAM. This depends on that the
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@ -472,4 +480,10 @@ swapper_pg_dir = 0xc0002000
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.section ".init.data", "aw"
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#include "../mach/hw_settings.S"
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#if defined CONFIG_ETRAXFS
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#include "../mach-fs/hw_settings.S"
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#elif defined CONFIG_CRIS_MACH_ARTPEC3
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#include "../mach-a3/hw_settings.S"
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#else
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#error Only ETRAXFS and ARTPEC-3 supported!
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#endif
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@ -8,6 +8,7 @@
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* the kernel has booted.
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*/
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#include <linux/autoconf.h>
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#include <asm-generic/vmlinux.lds.h>
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#include <asm/page.h>
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@ -17,22 +18,26 @@
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#define __CONFIG_ETRAX_VMEM_SIZE 0
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#endif
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jiffies = jiffies_64;
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SECTIONS
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{
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. = DRAM_VIRTUAL_BASE;
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dram_start = .;
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#ifdef CONFIG_ETRAX_ARCH_V10
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ibr_start = .;
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#else
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ebp_start = .;
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/* The boot section is only necessary until the VCS top */
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/* level testbench includes both flash and DRAM. */
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.boot : { *(.boot) }
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#endif
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/* See head.S and pages reserved at the start. */
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/* see head.S and pages reserved at the start */
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. = DRAM_VIRTUAL_BASE + 0x4000;
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_text = .; /* Text and read-only data. */
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text_start = .; /* Lots of aliases. */
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_text = .; /* Text and read-only data. */
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text_start = .; /* Lots of aliases. */
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_stext = .;
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__stext = .;
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.text : {
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@ -43,10 +48,10 @@ SECTIONS
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*(.text.__*)
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}
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_etext = . ; /* End of text section. */
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_etext = . ; /* End of text section. */
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__etext = .;
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. = ALIGN(4); /* Exception table. */
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. = ALIGN(4); /* Exception table. */
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__start___ex_table = .;
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__ex_table : { *(__ex_table) }
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__stop___ex_table = .;
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@ -56,16 +61,16 @@ SECTIONS
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. = ALIGN (4);
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___data_start = . ;
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__Sdata = . ;
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.data : { /* Data */
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.data : { /* Data */
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DATA_DATA
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}
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__edata = . ; /* End of data section. */
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__edata = . ; /* End of data section. */
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_edata = . ;
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. = ALIGN(PAGE_SIZE); /* init_task and stack, must be aligned. */
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.data.init_task : { *(.data.init_task) }
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. = ALIGN(PAGE_SIZE); /* Init code and data. */
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. = ALIGN(PAGE_SIZE); /* Init code and data. */
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__init_begin = .;
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.init.text : {
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_sinittext = .;
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@ -77,9 +82,11 @@ SECTIONS
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__setup_start = .;
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.init.setup : { *(.init.setup) }
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__setup_end = .;
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#ifdef CONFIG_ETRAX_ARCH_V32
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__start___param = .;
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__param : { *(__param) }
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__stop___param = .;
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#endif
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.initcall.init : {
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__initcall_start = .;
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INITCALLS
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@ -93,7 +100,17 @@ SECTIONS
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}
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SECURITY_INIT
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__vmlinux_end = .; /* Last address of the physical file. */
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#ifdef CONFIG_ETRAX_ARCH_V10
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#ifdef CONFIG_BLK_DEV_INITRD
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.init.ramfs : {
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__initramfs_start = .;
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*(.init.ramfs)
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__initramfs_end = .;
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}
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#endif
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#endif
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__vmlinux_end = .; /* Last address of the physical file. */
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#ifdef CONFIG_ETRAX_ARCH_V32
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PERCPU(PAGE_SIZE)
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.init.ramfs : {
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@ -101,18 +118,19 @@ SECTIONS
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*(.init.ramfs)
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__initramfs_end = .;
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}
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#endif
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/*
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* We fill to the next page, so we can discard all init
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* pages without needing to consider what payload might be
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* appended to the kernel image.
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*/
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. = ALIGN (PAGE_SIZE);
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. = ALIGN(PAGE_SIZE);
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__init_end = .;
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__data_end = . ; /* Move to _edata? */
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__bss_start = .; /* BSS. */
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__data_end = . ; /* Move to _edata ? */
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__bss_start = .; /* BSS. */
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.bss : {
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*(COMMON)
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*(.bss)
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