af8a5af3ff
Revert this patch: move the init sections to the end of memory, so that after they are free, run time memory is all continugous - this should help decrease memory fragementation. When doing this, we also pack some of the other sections a little closer together, to make sure we don't waste memory. To make this happen, we need to rename the .data.init_task section to .init_task.data, so it doesn't get picked up by the linker script glob. Since it causes the kernel not to boot up with mtd filesystems. Signed-off-by: Bernd Schmidt <bernd.schmidt@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
205 lines
3.6 KiB
ArmAsm
205 lines
3.6 KiB
ArmAsm
/*
|
|
* File: arch/blackfin/kernel/vmlinux.lds.S
|
|
* Based on: none - original work
|
|
* Author:
|
|
*
|
|
* Created: Tue Sep 21 2004
|
|
* Description: Master linker script for blackfin architecture
|
|
*
|
|
* Modified:
|
|
* Copyright 2004-2007 Analog Devices Inc.
|
|
*
|
|
* Bugs: Enter bugs at http://blackfin.uclinux.org/
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, see the file COPYING, or write
|
|
* to the Free Software Foundation, Inc.,
|
|
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#define VMLINUX_SYMBOL(_sym_) _##_sym_
|
|
|
|
#include <asm-generic/vmlinux.lds.h>
|
|
#include <asm/mem_map.h>
|
|
#include <asm/page.h>
|
|
#include <asm/thread_info.h>
|
|
|
|
OUTPUT_FORMAT("elf32-bfin")
|
|
ENTRY(__start)
|
|
_jiffies = _jiffies_64;
|
|
|
|
SECTIONS
|
|
{
|
|
. = CONFIG_BOOT_LOAD;
|
|
.text :
|
|
{
|
|
__text = .;
|
|
_text = .;
|
|
__stext = .;
|
|
TEXT_TEXT
|
|
SCHED_TEXT
|
|
LOCK_TEXT
|
|
KPROBES_TEXT
|
|
*(.text.*)
|
|
*(.fixup)
|
|
|
|
. = ALIGN(16);
|
|
___start___ex_table = .;
|
|
*(__ex_table)
|
|
___stop___ex_table = .;
|
|
|
|
. = ALIGN(4);
|
|
__etext = .;
|
|
}
|
|
|
|
RO_DATA(PAGE_SIZE)
|
|
|
|
.data :
|
|
{
|
|
/* make sure the init_task is aligned to the
|
|
* kernel thread size so we can locate the kernel
|
|
* stack properly and quickly.
|
|
*/
|
|
__sdata = .;
|
|
. = ALIGN(THREAD_SIZE);
|
|
*(.data.init_task)
|
|
|
|
. = ALIGN(32);
|
|
*(.data.cacheline_aligned)
|
|
|
|
DATA_DATA
|
|
*(.data.*)
|
|
CONSTRUCTORS
|
|
|
|
. = ALIGN(THREAD_SIZE);
|
|
__edata = .;
|
|
}
|
|
|
|
___init_begin = .;
|
|
|
|
.init.text :
|
|
{
|
|
. = ALIGN(PAGE_SIZE);
|
|
__sinittext = .;
|
|
*(.init.text)
|
|
__einittext = .;
|
|
}
|
|
.init.data :
|
|
{
|
|
. = ALIGN(16);
|
|
*(.init.data)
|
|
}
|
|
.init.setup :
|
|
{
|
|
. = ALIGN(16);
|
|
___setup_start = .;
|
|
*(.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
|
|
.init.ramfs :
|
|
{
|
|
. = ALIGN(4);
|
|
___initramfs_start = .;
|
|
*(.init.ramfs)
|
|
___initramfs_end = .;
|
|
}
|
|
|
|
__l1_lma_start = .;
|
|
|
|
.text_l1 L1_CODE_START : AT(LOADADDR(.init.ramfs) + SIZEOF(.init.ramfs))
|
|
{
|
|
. = ALIGN(4);
|
|
__stext_l1 = .;
|
|
*(.l1.text)
|
|
|
|
. = ALIGN(4);
|
|
__etext_l1 = .;
|
|
}
|
|
|
|
.data_l1 L1_DATA_A_START : AT(LOADADDR(.text_l1) + SIZEOF(.text_l1))
|
|
{
|
|
. = ALIGN(4);
|
|
__sdata_l1 = .;
|
|
*(.l1.data)
|
|
__edata_l1 = .;
|
|
|
|
. = ALIGN(4);
|
|
__sbss_l1 = .;
|
|
*(.l1.bss)
|
|
|
|
. = ALIGN(32);
|
|
*(.data_l1.cacheline_aligned)
|
|
|
|
. = ALIGN(4);
|
|
__ebss_l1 = .;
|
|
}
|
|
|
|
.data_b_l1 L1_DATA_B_START : AT(LOADADDR(.data_l1) + SIZEOF(.data_l1))
|
|
{
|
|
. = ALIGN(4);
|
|
__sdata_b_l1 = .;
|
|
*(.l1.data.B)
|
|
__edata_b_l1 = .;
|
|
|
|
. = ALIGN(4);
|
|
__sbss_b_l1 = .;
|
|
*(.l1.bss.B)
|
|
|
|
. = ALIGN(4);
|
|
__ebss_b_l1 = .;
|
|
}
|
|
|
|
/* Force trailing alignment of our init section so that when we
|
|
* free our init memory, we don't leave behind a partial page.
|
|
*/
|
|
. = LOADADDR(.data_b_l1) + SIZEOF(.data_b_l1);
|
|
. = ALIGN(PAGE_SIZE);
|
|
___init_end = .;
|
|
|
|
.bss :
|
|
{
|
|
. = ALIGN(4);
|
|
___bss_start = .;
|
|
*(.bss .bss.*)
|
|
*(COMMON)
|
|
. = ALIGN(4);
|
|
___bss_stop = .;
|
|
__end = .;
|
|
}
|
|
|
|
STABS_DEBUG
|
|
|
|
DWARF_DEBUG
|
|
|
|
NOTES
|
|
|
|
/DISCARD/ :
|
|
{
|
|
*(.exit.text)
|
|
*(.exit.data)
|
|
*(.exitcall.exit)
|
|
}
|
|
}
|