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clean up LD scripts and add some comments and proper license headers 

where applicable.
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5419 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Stefan Reinauer 2010-04-13 13:43:35 +00:00 committed by Stefan Reinauer
parent ea7f5a253b
commit 79253841a7
4 changed files with 89 additions and 86 deletions
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66
src/arch/i386/coreboot_ram.ld
View File

@ -1,11 +1,12 @@
/*
* Memory map:
*
* CONFIG_RAMBASE
* CONFIG_RAMBASE : text segment
* : rodata segment
* : data segment
* : bss segment
* : heap
* : stack
* : heap
*/
/*
* Bootstrap code for the STPC Consumer
@ -17,10 +18,8 @@
* Rewritten by Eric Biederman
* 2005.12 yhlu add coreboot_ram cross the vga font buffer handling
*/
/*
* We use ELF as output format. So that we can
* debug the code in some form.
*/
/* We use ELF as output format. So that we can debug the code in some form. */
INCLUDE ldoptions
ENTRY(_start)
@ -28,9 +27,8 @@ ENTRY(_start)
SECTIONS
{
. = CONFIG_RAMBASE;
/*
* First we place the code and read only data (typically const declared).
* This get placed in rom.
/* First we place the code and read only data (typically const declared).
* This could theoretically be placed in rom.
*/
.text : {
_text = .;
@ -39,6 +37,7 @@ SECTIONS
. = ALIGN(16);
_etext = .;
}
.rodata : {
_rodata = .;
. = ALIGN(4);
@ -54,17 +53,14 @@ SECTIONS
ecpu_drivers = . ;
*(.rodata)
*(.rodata.*)
/*
* kevinh/Ispiri - Added an align, because the objcopy tool
/* kevinh/Ispiri - Added an align, because the objcopy tool
* incorrectly converts sections that are not long word aligned.
* This breaks the coreboot.rom target.
*/
. = ALIGN(4);
_erodata = .;
}
/*
* After the code we place initialized data (typically initialized
/* After the code we place initialized data (typically initialized
* global variables). This gets copied into ram by startup code.
* __data_start and __data_end shows where in ram this should be placed,
* whereas __data_loadstart and __data_loadend shows where in rom to
@ -76,18 +72,7 @@ SECTIONS
_edata = .;
}
.sdata : {
_SDA_BASE_ = .;
*(.sdata)
}
.sdata2 : {
_SDA2_BASE_ = .;
*(.sdata2)
}
/*
* bss does not contain data, it is just a space that should be zero
/* bss does not contain data, it is just a space that should be zero
* initialized on startup. (typically uninitialized global variables)
* crt0.S fills between _bss and _ebss with zeroes.
*/
@ -99,6 +84,11 @@ SECTIONS
}
_ebss = .;
_end = .;
/* coreboot really "ends" here. Only heap and stack are placed after
* this line.
*/
. = ALIGN(CONFIG_STACK_SIZE);
_stack = .;
@ -107,6 +97,7 @@ SECTIONS
. += CONFIG_MAX_CPUS*CONFIG_STACK_SIZE;
}
_estack = .;
_heap = .;
.heap . : {
/* Reserve CONFIG_HEAP_SIZE bytes for the heap */
@ -115,18 +106,33 @@ SECTIONS
}
_eheap = .;
/* Some assertions to print human readable errors for certain linker
* error scenarios.
*/
/* Avoid running into 0xa0000-0xfffff */
_bogus = ASSERT(CONFIG_RAMBASE >= 0x100000 || _eheap < 0xa0000, "Please move RAMBASE to 1MB");
/* The ram segment
* This is all address of the memory resident copy of coreboot.
/* The ram segment. This includes all memory used by the memory
* resident copy of coreboot, except the tables that are produced on
* the fly, but including stack and heap.
*/
_ram_seg = _text;
_eram_seg = _eheap;
_bogus = ASSERT( ( _eram_seg < (CONFIG_RAMTOP)) , "please increase CONFIG_RAMTOP");
/* CONFIG_RAMTOP is the upper address of cached memory (among other
* things). We must not exceed beyond that address, there be dragons.
*/
_bogus = ASSERT( ( _eram_seg < (CONFIG_RAMTOP)) , "Please increase CONFIG_RAMTOP");
_bogus = ASSERT( !((CONFIG_CONSOLE_VGA || CONFIG_PCI_ROM_RUN) && ((_ram_seg<0xa0000) && (_eram_seg>0xa0000))) , "please increase CONFIG_RAMTOP and if still fail, try to set CONFIG_RAMBASE more than 1M");
/* This rule is only good for the few broken targets that still live
* below 1MB per default. Those are the Geode and VIA targets that come
* with their own version of real mode switches that can't live above
* 1MB. Once these are fixed, this rule should go away.
*/
_bogus = ASSERT( !((CONFIG_CONSOLE_VGA || CONFIG_PCI_ROM_RUN || CONFIG_VGA_ROM_RUN || CONFIG_HAVE_SMI_HANDLER) && ((_ram_seg<0xa0000) && (_eram_seg>0xa0000))), "Please increase CONFIG_RAMTOP and if still fail, try to set CONFIG_RAMBASE to 1M");
/* Discard the sections we don't need/want */
/DISCARD/ : {
*(.comment)

25
src/arch/i386/init/ldscript_apc.lb
View File

@ -1,4 +1,23 @@
/* INPUT(coreboot_ap.rom)*/
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2006 Advanced Micro Devices, Inc.
* Copyright (C) 2008-2010 coresystems GmbH
*
* 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; version 2 of the License.
*
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
INCLUDE "ldoptions"
SECTIONS
{
@ -9,8 +28,4 @@ SECTIONS
*(.rodata.*)
_eapcrom = .;
}
_iseg_apc = CONFIG_DCACHE_RAM_BASE;
_eiseg_apc = _iseg_apc + SIZEOF(.apcrom);
_liseg_apc = _apcrom;
_eliseg_apc = _eapcrom;
}

39
src/arch/i386/init/ldscript_failover.lb
View File

@ -1,29 +1,24 @@
/*
* Memory map:
* This file is part of the coreboot project.
*
* CONFIG_RAMBASE
* : data segment
* : bss segment
* : heap
* : stack
* CONFIG_ROMBASE
* : coreboot text
* : readonly text
*/
/*
* Bootstrap code for the STPC Consumer
* Copyright (c) 1999 by Net Insight AB. All Rights Reserved.
* Copyright (C) 2006 Advanced Micro Devices, Inc.
* Copyright (C) 2008-2010 coresystems GmbH
*
* 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; version 2 of the License.
*
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
/*
* Written by Johan Rydberg, based on work by Daniel Kahlin.
* Rewritten by Eric Biederman
*/
/*
* We use ELF as output format. So that we can
* debug the code in some form.
*/
/* We use ELF as output format. So that we can debug the code in some form. */
OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386")
OUTPUT_ARCH(i386)
@ -34,8 +29,6 @@ MEMORY {
TARGET(binary)
SECTIONS
{
. = 0;
/* This section might be better named .setup */
.rom ROMLOC : {
_rom = .;

43
src/arch/i386/init/ldscript_fallback_cbfs.lb
View File

@ -1,36 +1,27 @@
/*
* Memory map:
* This file is part of the coreboot project.
*
* CONFIG_RAMBASE
* : data segment
* : bss segment
* : heap
* : stack
* CONFIG_ROMBASE
* : coreboot text
* : readonly text
*/
/*
* Bootstrap code for the STPC Consumer
* Copyright (c) 1999 by Net Insight AB. All Rights Reserved.
* Copyright (C) 2006 Advanced Micro Devices, Inc.
* Copyright (C) 2008-2010 coresystems GmbH
*
* 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; version 2 of the License.
*
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
/*
* Written by Johan Rydberg, based on work by Daniel Kahlin.
* Rewritten by Eric Biederman
*/
/*
* We use ELF as output format. So that we can
* debug the code in some form.
*/
/* We use ELF as output format. So that we can debug the code in some form. */
OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386")
OUTPUT_ARCH(i386)
/*
ENTRY(_start)
*/
TARGET(binary)
SECTIONS
{
@ -45,8 +36,6 @@ SECTIONS
_rom = .;
*(.rom.text);
*(.rom.data);
*(.init.rodata.*);
*(.init.text);
*(.rodata);
*(.rodata.*);
*(.rom.data.*);