Blackfin arch: redo our linker script a bit

- we can start taking advantages of defines in asm-generic/vmlinux.lds.h
 - move our L1 relocated sections into init so it gets freed after relocation

Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
This commit is contained in:
Mike Frysinger 2007-06-11 17:27:05 +08:00 committed by Bryan Wu
parent 43a3188ea3
commit de6a9520d4
1 changed files with 57 additions and 112 deletions

View File

@ -7,7 +7,7 @@
* Description: Master linker script for blackfin architecture
*
* Modified:
* Copyright 2004-2006 Analog Devices Inc.
* Copyright 2004-2007 Analog Devices Inc.
*
* Bugs: Enter bugs at http://blackfin.uclinux.org/
*
@ -32,98 +32,54 @@
#include <asm-generic/vmlinux.lds.h>
#include <asm/mem_map.h>
OUTPUT_FORMAT("elf32-bfin")
ENTRY(__start)
_jiffies = _jiffies_64;
MEMORY
{
ram : ORIGIN = CONFIG_BOOT_LOAD, LENGTH = (CONFIG_MEM_SIZE * 1024 * 1024) - (CONFIG_BOOT_LOAD)
l1_data_a : ORIGIN = L1_DATA_A_START, LENGTH = L1_DATA_A_LENGTH
l1_data_b : ORIGIN = L1_DATA_B_START, LENGTH = L1_DATA_B_LENGTH
l1_code : ORIGIN = L1_CODE_START, LENGTH = L1_CODE_LENGTH
l1_scratch : ORIGIN = L1_SCRATCH_START, LENGTH = L1_SCRATCH_LENGTH
}
SECTIONS
{
. = CONFIG_BOOT_LOAD;
.text :
{
__text = .;
_text = .;
__stext = .;
__text = .;
_text = .;
__stext = .;
TEXT_TEXT
SCHED_TEXT
LOCK_TEXT
*(.text.lock)
. = ALIGN(16);
___start___ex_table = .;
*(__ex_table)
___stop___ex_table = .;
*($code)
*(.rodata)
*(.rodata.*)
*(__vermagic) /* Kernel version magic */
*(.rodata1)
*(.fixup)
*(.spinlock.text)
/* Kernel symbol table: Normal symbols */
. = ALIGN(16);
___start___ex_table = .;
*(__ex_table)
___stop___ex_table = .;
. = ALIGN(4);
___start___ksymtab = .;
*(__ksymtab)
___stop___ksymtab = .;
/* Kernel symbol table: GPL-only symbols */
___start___ksymtab_gpl = .;
*(__ksymtab_gpl)
___stop___ksymtab_gpl = .;
/* Kernel symbol table: Normal unused symbols */ \
___start___ksymtab_unused = .;
*(__ksymtab_unused)
___stop___ksymtab_unused = .;
/* Kernel symbol table: GPL-only unused symbols */
___start___ksymtab_unused_gpl = .;
*(__ksymtab_unused_gpl)
___stop___ksymtab_unused_gpl = .;
/* Kernel symbol table: GPL-future symbols */
___start___ksymtab_gpl_future = .;
*(__ksymtab_gpl_future)
___stop___ksymtab_gpl_future = .;
/* Kernel symbol table: Normal symbols */
___start___kcrctab = .;
*(__kcrctab)
___stop___kcrctab = .;
/* Kernel symbol table: GPL-only symbols */
___start___kcrctab_gpl = .;
*(__kcrctab_gpl)
___stop___kcrctab_gpl = .;
/* Kernel symbol table: GPL-future symbols */
___start___kcrctab_gpl_future = .;
*(__kcrctab_gpl_future)
___stop___kcrctab_gpl_future = .;
/* Kernel symbol table: strings */
*(__ksymtab_strings)
. = ALIGN(4);
__etext = .;
} > ram
}
RODATA
.data :
{
__sdata = .;
. = ALIGN(0x2000);
*(.data.init_task)
DATA_DATA
CONSTRUCTORS
. = ALIGN(32);
*(.data.cacheline_aligned)
. = ALIGN(0x2000);
__edata = .;
}
___init_begin = .;
.init :
{
. = ALIGN(4096);
___init_begin = .;
__sinittext = .;
*(.init.text)
__einittext = .;
@ -149,39 +105,39 @@ SECTIONS
*(.init.ramfs)
___initramfs_end = .;
. = ALIGN(4);
___init_end = .;
} > ram
}
__l1_lma_start = .;
__l1_lma_start = .;
.text_l1 :
.text_l1 L1_CODE_START : AT(LOADADDR(.init) + SIZEOF(.init))
{
. = ALIGN(4);
__stext_l1 = .;
__stext_l1 = .;
*(.l1.text)
. = ALIGN(4);
__etext_l1 = .;
} > l1_code AT > ram
__etext_l1 = .;
}
.data_l1 :
.data_l1 L1_DATA_A_START : AT(LOADADDR(.text_l1) + SIZEOF(.text_l1))
{
. = ALIGN(4);
__sdata_l1 = .;
__sdata_l1 = .;
*(.l1.data)
__edata_l1 = .;
__edata_l1 = .;
. = ALIGN(4);
__sbss_l1 = .;
__sbss_l1 = .;
*(.l1.bss)
. = ALIGN(32);
*(.data_l1.cacheline_aligned)
. = ALIGN(4);
__ebss_l1 = .;
} > l1_data_a AT > ram
.data_b_l1 :
__ebss_l1 = .;
}
.data_b_l1 L1_DATA_B_START : AT(LOADADDR(.data_l1) + SIZEOF(.data_l1))
{
. = ALIGN(4);
__sdata_b_l1 = .;
@ -194,36 +150,25 @@ SECTIONS
. = ALIGN(4);
__ebss_b_l1 = .;
} > l1_data_b AT > ram
}
.data :
{
__sdata = .;
. = ALIGN(0x2000);
*(.data.init_task)
DATA_DATA
___init_end = LOADADDR(.data_b_l1) + SIZEOF(.data_b_l1);
. = ALIGN(32);
*(.data.cacheline_aligned)
. = ALIGN(0x2000);
__edata = .;
} > ram
/DISCARD/ : { /* Exit code and data*/
*(.exit.text)
*(.exit.data)
*(.exitcall.exit)
} > ram
.bss :
.bss LOADADDR(.data_b_l1) + SIZEOF(.data_b_l1) :
{
. = ALIGN(4);
___bss_start = .;
___bss_start = .;
*(.bss)
*(COMMON)
. = ALIGN(4);
___bss_stop = .;
__end = . ;
} > ram
___bss_stop = .;
__end = .;
}
/DISCARD/ :
{
*(.exit.text)
*(.exit.data)
*(.exitcall.exit)
}
}