mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-12 07:57:21 +00:00
f84a7b8f54
Commit 3ebd1cbc introduced compiler-generated __bss_start
and __bss_end__ and commit c23561e7 rewrote all __bss_end__
as __bss_end. Their merge caused silent and harmless but
potentially bug-inducing clashes between compiler- and linker-
generated __bss_end symbols.
Make __bss_end and __bss_start compiler-only, and create
__bss_base and __bss_limit for linker-only use.
Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
Reported-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
113 lines
2.3 KiB
Text
113 lines
2.3 KiB
Text
/*
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* Copyright (c) 2004-2008 Texas Instruments
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*
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* (C) Copyright 2002
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* Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
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OUTPUT_ARCH(arm)
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ENTRY(_start)
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SECTIONS
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{
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. = 0x00000000;
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. = ALIGN(4);
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.text :
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{
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__image_copy_start = .;
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CPUDIR/start.o (.text*)
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*(.text*)
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}
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. = ALIGN(4);
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.rodata : { *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) }
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. = ALIGN(4);
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.data : {
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*(.data*)
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}
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. = ALIGN(4);
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. = .;
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. = ALIGN(4);
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.u_boot_list : {
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KEEP(*(SORT(.u_boot_list*)));
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}
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. = ALIGN(4);
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__image_copy_end = .;
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.rel.dyn : {
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__rel_dyn_start = .;
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*(.rel*)
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__rel_dyn_end = .;
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}
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.dynsym : {
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__dynsym_start = .;
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*(.dynsym)
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}
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_end = .;
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/*
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* Deprecated: this MMU section is used by pxa at present but
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* should not be used by new boards/CPUs.
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*/
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. = ALIGN(4096);
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.mmutable : {
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*(.mmutable)
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}
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/*
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* Compiler-generated __bss_start and __bss_end, see arch/arm/lib/bss.c
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* __bss_base and __bss_limit are for linker only (overlay ordering)
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*/
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.bss_start __rel_dyn_start (OVERLAY) : {
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KEEP(*(.__bss_start));
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__bss_base = .;
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}
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.bss __bss_base (OVERLAY) : {
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*(.bss*)
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. = ALIGN(4);
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__bss_limit = .;
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}
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.bss_end __bss_limit (OVERLAY) : {
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KEEP(*(.__bss_end));
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}
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/DISCARD/ : { *(.dynstr*) }
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/DISCARD/ : { *(.dynamic*) }
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/DISCARD/ : { *(.plt*) }
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/DISCARD/ : { *(.interp*) }
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/DISCARD/ : { *(.gnu*) }
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}
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#if defined(CONFIG_SPL_TEXT_BASE) && defined(CONFIG_SPL_MAX_SIZE)
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ASSERT(__bss_end < (CONFIG_SPL_TEXT_BASE + CONFIG_SPL_MAX_SIZE), "SPL image too big");
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#endif
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