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[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 2008-10-22 23:57:53 +02:00
parent 0365f707c9
commit c5ec6fb08d
5 changed files with 81 additions and 178 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

61
arch/cris/Makefile
View File

@ -23,7 +23,8 @@ mach-$(CONFIG_ETRAXFS) := fs
ifneq ($(arch-y),)
SARCH := arch-$(arch-y)
inc := -Iarch/cris/include/arch-$(arch-y) -Iarch/cris/include/arch-$(arch-y)/arch
inc := -Iarch/cris/include/$(SARCH)
inc += -Iarch/cris/include/$(SARCH)/arch
else
SARCH :=
inc :=
@ -52,72 +53,48 @@ KBUILD_CFLAGS := $(subst -fomit-frame-pointer,,$(KBUILD_CFLAGS)) -g
KBUILD_CFLAGS += -fno-omit-frame-pointer
endif
head-y := arch/$(ARCH)/$(SARCH)/kernel/head.o
head-y := arch/cris/$(SARCH)/kernel/head.o
LIBGCC = $(shell $(CC) $(KBUILD_CFLAGS) -print-file-name=libgcc.a)
core-y += arch/$(ARCH)/kernel/ arch/$(ARCH)/mm/
core-y += arch/$(ARCH)/$(SARCH)/kernel/ arch/$(ARCH)/$(SARCH)/mm/
core-y += arch/cris/kernel/ arch/cris/mm/
core-y += arch/cris/$(SARCH)/kernel/ arch/cris/$(SARCH)/mm/
ifdef CONFIG_ETRAX_ARCH_V32
core-y += arch/$(ARCH)/$(SARCH)/$(MACH)/
core-y += arch/cris/$(SARCH)/$(MACH)/
endif
drivers-y += arch/$(ARCH)/$(SARCH)/drivers/
libs-y += arch/$(ARCH)/$(SARCH)/lib/ $(LIBGCC)
drivers-y += arch/cris/$(SARCH)/drivers/
libs-y += arch/cris/$(SARCH)/lib/ $(LIBGCC)
# cris source path
SRC_ARCH = $(srctree)/arch/$(ARCH)
SRC_ARCH = $(srctree)/arch/cris
# cris object files path
OBJ_ARCH = $(objtree)/arch/$(ARCH)
OBJ_ARCH = $(objtree)/arch/cris
boot := arch/$(ARCH)/boot
MACHINE := arch/$(ARCH)/$(SARCH)
boot := arch/cris/$(SARCH)/boot
MACHINE := arch/cris/$(SARCH)
all: zImage
zImage Image: vmlinux
$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
archprepare: $(SRC_ARCH)/.links FORCE
# Create some links to make all tools happy
$(SRC_ARCH)/.links:
@rm -rf $(SRC_ARCH)/drivers
@ln -sfn $(SARCH)/drivers $(SRC_ARCH)/drivers
@rm -rf $(SRC_ARCH)/boot
@ln -sfn $(SARCH)/boot $(SRC_ARCH)/boot
@rm -rf $(SRC_ARCH)/lib
@ln -sfn $(SARCH)/lib $(SRC_ARCH)/lib
@rm -f $(SRC_ARCH)/arch/mach
@rm -rf $(SRC_ARCH)/arch
@ln -sfn $(SARCH) $(SRC_ARCH)/arch
ifdef CONFIG_ETRAX_ARCH_V32
@ln -sfn ../$(SARCH)/$(MACH) $(SRC_ARCH)/arch/mach
endif
@rm -rf $(SRC_ARCH)/kernel/vmlinux.lds.S
@ln -sfn ../$(SARCH)/vmlinux.lds.S $(SRC_ARCH)/kernel/vmlinux.lds.S
@touch $@
archprepare:
archclean:
$(Q)if [ -e arch/$(ARCH)/boot ]; then \
$(MAKE) $(clean)=arch/$(ARCH)/boot; \
$(Q)if [ -e arch/cris/$(SARCH)/boot ]; then \
$(MAKE) $(clean)=arch/cris/$(SARCH)/boot; \
fi
CLEAN_FILES += \
$(MACHINE)/boot/zImage \
$(MACHINE)/boot/compressed/decompress.bin \
$(MACHINE)/boot/compressed/piggy.gz \
$(MACHINE)/boot/rescue/rescue.bin \
$(SRC_ARCH)/.links
$(MACHINE)/boot/rescue/rescue.bin
MRPROPER_FILES += \
$(SRC_ARCH)/drivers \
$(SRC_ARCH)/boot \
$(SRC_ARCH)/lib \
$(SRC_ARCH)/arch \
$(SRC_ARCH)/kernel/vmlinux.lds.S
# MRPROPER_FILES +=
define archhelp
echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
echo '* Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
echo '* zImage - Compressed kernel image (arch/cris/boot/zImage)'
echo '* Image - Uncompressed kernel image (arch/cris/boot/Image)'
endef

118
arch/cris/arch-v10/vmlinux.lds.S
View File

@ -1,118 +0,0 @@
/* ld script to make the Linux/CRIS kernel
* Authors: Bjorn Wesen (bjornw@axis.com)
*
* It is VERY DANGEROUS to fiddle around with the symbols in this
* script. It is for example quite vital that all generated sections
* that are used are actually named here, otherwise the linker will
* put them at the end, where the init stuff is which is FREED after
* the kernel has booted.
*/
#include <asm-generic/vmlinux.lds.h>
#include <asm/page.h>
jiffies = jiffies_64;
SECTIONS
{
. = DRAM_VIRTUAL_BASE;
dram_start = .;
ibr_start = .;
. = . + 0x4000; /* see head.S and pages reserved at the start */
_text = .; /* Text and read-only data */
text_start = .; /* lots of aliases */
_stext = .;
__stext = .;
.text : {
TEXT_TEXT
SCHED_TEXT
LOCK_TEXT
*(.fixup)
*(.text.__*)
}
_etext = . ; /* End of text section */
__etext = .;
. = ALIGN(4); /* Exception table */
__start___ex_table = .;
__ex_table : { *(__ex_table) }
__stop___ex_table = .;
RODATA
. = ALIGN (4);
___data_start = . ;
__Sdata = . ;
.data : { /* Data */
DATA_DATA
}
__edata = . ; /* End of data section */
_edata = . ;
. = ALIGN(PAGE_SIZE); /* init_task and stack, must be aligned */
.data.init_task : { *(.data.init_task) }
. = ALIGN(PAGE_SIZE); /* Init code and data */
__init_begin = .;
.init.text : {
_sinittext = .;
INIT_TEXT
_einittext = .;
}
.init.data : { INIT_DATA }
. = ALIGN(16);
__setup_start = .;
.init.setup : { *(.init.setup) }
__setup_end = .;
.initcall.init : {
__initcall_start = .;
INITCALLS
__initcall_end = .;
}
.con_initcall.init : {
__con_initcall_start = .;
*(.con_initcall.init)
__con_initcall_end = .;
}
SECURITY_INIT
#ifdef CONFIG_BLK_DEV_INITRD
.init.ramfs : {
__initramfs_start = .;
*(.init.ramfs)
__initramfs_end = .;
}
#endif
__vmlinux_end = .; /* last address of the physical file */
/*
* We fill to the next page, so we can discard all init
* pages without needing to consider what payload might be
* appended to the kernel image.
*/
. = ALIGN(PAGE_SIZE);
__init_end = .;
__data_end = . ; /* Move to _edata ? */
__bss_start = .; /* BSS */
.bss : {
*(COMMON)
*(.bss)
}
. = ALIGN (0x20);
_end = .;
__end = .;
/* Sections to be discarded */
/DISCARD/ : {
EXIT_TEXT
EXIT_DATA
*(.exitcall.exit)
}
dram_end = dram_start + CONFIG_ETRAX_DRAM_SIZE*1024*1024;
}

16
arch/cris/arch-v32/boot/compressed/head.S
View File

@ -28,7 +28,13 @@ _start:
beq dram_init_finished
nop
#include "../../mach/dram_init.S"
#if defined CONFIG_ETRAXFS
#include "../../mach-fs/dram_init.S"
#elif defined CONFIG_CRIS_MACH_ARTPEC3
#include "../../mach-a3/dram_init.S"
#else
#error Only ETRAXFS and ARTPEC-3 supported!
#endif
dram_init_finished:
@ -130,4 +136,10 @@ _cmd_line_addr:
_boot_source:
.dword 0
#include "../../mach/hw_settings.S"
#if defined CONFIG_ETRAXFS
#include "../../mach-fs/hw_settings.S"
#elif defined CONFIG_CRIS_MACH_ARTPEC3
#include "../../mach-a3/hw_settings.S"
#else
#error Only ETRAXFS and ARTPEC-3 supported!
#endif

20
arch/cris/arch-v32/kernel/head.S
View File

@ -10,8 +10,9 @@
* The macros found in mmu_defs_asm.h uses the ## concatenation operator, so
* -traditional must not be used when assembling this file.
*/
#include <hwregs/reg_rdwr.h>
#include <linux/autoconf.h>
#include <arch/memmap.h>
#include <hwregs/reg_rdwr.h>
#include <hwregs/intr_vect.h>
#include <hwregs/asm/mmu_defs_asm.h>
#include <hwregs/asm/reg_map_asm.h>
@ -217,7 +218,14 @@ _inflash:
beq _dram_initialized
nop
#include "../mach/dram_init.S"
#if defined CONFIG_ETRAXFS
#include "../mach-fs/dram_init.S"
#elif defined CONFIG_CRIS_MACH_ARTPEC3
#include "../mach-a3/dram_init.S"
#else
#error Only ETRAXFS and ARTPEC-3 supported!
#endif
_dram_initialized:
;; Copy the text and data section to DRAM. This depends on that the
@ -472,4 +480,10 @@ swapper_pg_dir = 0xc0002000
.section ".init.data", "aw"
#include "../mach/hw_settings.S"
#if defined CONFIG_ETRAXFS
#include "../mach-fs/hw_settings.S"
#elif defined CONFIG_CRIS_MACH_ARTPEC3
#include "../mach-a3/hw_settings.S"
#else
#error Only ETRAXFS and ARTPEC-3 supported!
#endif

44
arch/cris/arch-v32/vmlinux.lds.S → arch/cris/kernel/vmlinux.lds.S
View File

@ -8,6 +8,7 @@
* the kernel has booted.
*/
#include <linux/autoconf.h>
#include <asm-generic/vmlinux.lds.h>
#include <asm/page.h>
@ -17,22 +18,26 @@
#define __CONFIG_ETRAX_VMEM_SIZE 0
#endif
jiffies = jiffies_64;
SECTIONS
{
. = DRAM_VIRTUAL_BASE;
dram_start = .;
#ifdef CONFIG_ETRAX_ARCH_V10
ibr_start = .;
#else
ebp_start = .;
/* The boot section is only necessary until the VCS top */
/* level testbench includes both flash and DRAM. */
.boot : { *(.boot) }
#endif
/* See head.S and pages reserved at the start. */
/* see head.S and pages reserved at the start */
. = DRAM_VIRTUAL_BASE + 0x4000;
_text = .; /* Text and read-only data. */
text_start = .; /* Lots of aliases. */
_text = .; /* Text and read-only data. */
text_start = .; /* Lots of aliases. */
_stext = .;
__stext = .;
.text : {
@ -43,10 +48,10 @@ SECTIONS
*(.text.__*)
}
_etext = . ; /* End of text section. */
_etext = . ; /* End of text section. */
__etext = .;
. = ALIGN(4); /* Exception table. */
. = ALIGN(4); /* Exception table. */
__start___ex_table = .;
__ex_table : { *(__ex_table) }
__stop___ex_table = .;
@ -56,16 +61,16 @@ SECTIONS
. = ALIGN (4);
___data_start = . ;
__Sdata = . ;
.data : { /* Data */
.data : { /* Data */
DATA_DATA
}
__edata = . ; /* End of data section. */
__edata = . ; /* End of data section. */
_edata = . ;
. = ALIGN(PAGE_SIZE); /* init_task and stack, must be aligned. */
.data.init_task : { *(.data.init_task) }
. = ALIGN(PAGE_SIZE); /* Init code and data. */
. = ALIGN(PAGE_SIZE); /* Init code and data. */
__init_begin = .;
.init.text : {
_sinittext = .;
@ -77,9 +82,11 @@ SECTIONS
__setup_start = .;
.init.setup : { *(.init.setup) }
__setup_end = .;
#ifdef CONFIG_ETRAX_ARCH_V32
__start___param = .;
__param : { *(__param) }
__stop___param = .;
#endif
.initcall.init : {
__initcall_start = .;
INITCALLS
@ -93,7 +100,17 @@ SECTIONS
}
SECURITY_INIT
__vmlinux_end = .; /* Last address of the physical file. */
#ifdef CONFIG_ETRAX_ARCH_V10
#ifdef CONFIG_BLK_DEV_INITRD
.init.ramfs : {
__initramfs_start = .;
*(.init.ramfs)
__initramfs_end = .;
}
#endif
#endif
__vmlinux_end = .; /* Last address of the physical file. */
#ifdef CONFIG_ETRAX_ARCH_V32
PERCPU(PAGE_SIZE)
.init.ramfs : {
@ -101,18 +118,19 @@ SECTIONS
*(.init.ramfs)
__initramfs_end = .;
}
#endif
/*
* We fill to the next page, so we can discard all init
* pages without needing to consider what payload might be
* appended to the kernel image.
*/
. = ALIGN (PAGE_SIZE);
. = ALIGN(PAGE_SIZE);
__init_end = .;
__data_end = . ; /* Move to _edata? */
__bss_start = .; /* BSS. */
__data_end = . ; /* Move to _edata ? */
__bss_start = .; /* BSS. */
.bss : {
*(COMMON)
*(.bss)