diff options
author | Stefan Reinauer <stepan@openbios.org> | 2010-12-11 20:33:41 +0000 |
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committer | Stefan Reinauer <stepan@openbios.org> | 2010-12-11 20:33:41 +0000 |
commit | 2eb857d44275850bb18694a179b0b450fed283ed (patch) | |
tree | d9a7c6042de85d623739e2679ba90c66aad2797f /src/arch/x86/coreboot_ram.ld | |
parent | 16190d1052ba591d908a9ada2177f62cf6f316de (diff) |
After this has been brought up many times before, rename src/arch/i386 to
src/arch/x86.
Signed-off-by: Stefan Reinauer <stepan@coreboot.org>
Acked-by: Patrick Georgi <patrick@georgi-clan.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6161 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/arch/x86/coreboot_ram.ld')
-rw-r--r-- | src/arch/x86/coreboot_ram.ld | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/src/arch/x86/coreboot_ram.ld b/src/arch/x86/coreboot_ram.ld new file mode 100644 index 000000000..57ddd03c0 --- /dev/null +++ b/src/arch/x86/coreboot_ram.ld @@ -0,0 +1,128 @@ +/* + * Memory map: + * + * CONFIG_RAMBASE : text segment + * : rodata segment + * : data segment + * : bss segment + * : stack + * : heap + */ +/* + * Bootstrap code for the STPC Consumer + * Copyright (c) 1999 by Net Insight AB. All Rights Reserved. + */ + +/* + * Written by Johan Rydberg, based on work by Daniel Kahlin. + * 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. */ +INCLUDE ldoptions + +ENTRY(_start) + +SECTIONS +{ + . = CONFIG_RAMBASE; + /* First we place the code and read only data (typically const declared). + * This could theoretically be placed in rom. + */ + .text : { + _text = .; + *(.text); + *(.text.*); + . = ALIGN(16); + _etext = .; + } + + .rodata : { + _rodata = .; + . = ALIGN(4); + console_drivers = .; + *(.rodata.console_drivers) + econsole_drivers = . ; + . = ALIGN(4); + pci_drivers = . ; + *(.rodata.pci_driver) + epci_drivers = . ; + cpu_drivers = . ; + *(.rodata.cpu_driver) + ecpu_drivers = . ; + *(.rodata) + *(.rodata.*) + /* kevinh/Ispiri - Added an align, because the objcopy tool + * incorrectly converts sections that are not long word aligned. + */ + . = ALIGN(4); + + _erodata = .; + } + /* 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 + * copy from. + */ + .data : { + _data = .; + *(.data) + _edata = .; + } + + /* 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. + */ + _bss = .; + .bss . : { + *(.bss) + *(.sbss) + *(COMMON) + } + _ebss = .; + _end = .; + + /* coreboot really "ends" here. Only heap and stack are placed after + * this line. + */ + + . = ALIGN(CONFIG_STACK_SIZE); + + _stack = .; + .stack . : { + /* Reserve a stack for each possible cpu */ + . += CONFIG_MAX_CPUS*CONFIG_STACK_SIZE; + } + _estack = .; + + _heap = .; + .heap . : { + /* Reserve CONFIG_HEAP_SIZE bytes for the heap */ + . = CONFIG_HEAP_SIZE ; + . = ALIGN(4); + } + _eheap = .; + + /* 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; + + /* 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"); + + /* Discard the sections we don't need/want */ + + /DISCARD/ : { + *(.comment) + *(.note) + *(.note.*) + } +} |