Commit c5ec6fb0 authored by Jesper Nilsson's avatar Jesper Nilsson
Browse files

[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: default avatarJesper Nilsson <jesper.nilsson@axis.com>
Acked-by: default avatarSam Ravnborg <sam@ravnborg.org>
parent 0365f707

arch/cris/Makefile

+19 −42
Original line number Diff line number Diff line
@@ -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

arch/cris/arch-v10/vmlinux.lds.S

deleted100644 → 0
+0 −118
Original line number Diff line number Diff line 
/* 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;

}

arch/cris/arch-v32/boot/compressed/head.S

+14 −2
Original line number Diff line number Diff line
@@ -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

arch/cris/arch-v32/kernel/head.S

+17 −3
Original line number Diff line number Diff line
@@ -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

arch/cris/arch-v32/vmlinux.lds.S→arch/cris/kernel/vmlinux.lds.S

+31 −13
Original line number Diff line number Diff line
@@ -8,6 +8,7 @@ 
 * the kernel has booted.

 */



#include <linux/autoconf.h>

#include <asm-generic/vmlinux.lds.h>

#include <asm/page.h>
@@ -17,18 +18,22 @@ 
#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. */
@@ -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



#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 : {
@@ -101,6 +118,7 @@ SECTIONS 
		*(.init.ramfs)

		__initramfs_end = .;

	}

#endif



	/*

	 * We fill to the next page, so we can discard all init

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