blob: 12c850f4e419dee623b54696d241954c94aad0fe [file] [log] [blame]
wdenk2262cfe2002-11-18 00:14:45 +00001/*
2 * (C) Copyright 2002
3 * Daniel Engström, Omicron Ceti AB, daniel@omicron.se.
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21 * MA 02111-1307 USA
22 */
23
24OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386")
25OUTPUT_ARCH(i386)
26ENTRY(_start)
27
28SECTIONS
wdenk8bde7f72003-06-27 21:31:46 +000029{
wdenk7a8e9bed2003-05-31 18:35:21 +000030 . = 0x387c0000; /* Where bootcode in the flash is mapped */
wdenk2262cfe2002-11-18 00:14:45 +000031 .text : { *(.text); }
wdenk2262cfe2002-11-18 00:14:45 +000032
wdenk8bde7f72003-06-27 21:31:46 +000033 . = ALIGN(4);
wdenkbdccc4f2003-08-05 17:43:17 +000034 .rodata : { *(.rodata) *(.rodata.str1.1) *(.rodata.str1.32) }
wdenk8bde7f72003-06-27 21:31:46 +000035
36 . = 0x400000; /* Ram data segment to use */
wdenk2262cfe2002-11-18 00:14:45 +000037 _i386boot_romdata_dest = ABSOLUTE(.);
wdenk8bde7f72003-06-27 21:31:46 +000038 .data : AT ( LOADADDR(.rodata) + SIZEOF(.rodata) ) { *(.data) }
39 _i386boot_romdata_start = LOADADDR(.data);
wdenk2262cfe2002-11-18 00:14:45 +000040
wdenk8bde7f72003-06-27 21:31:46 +000041 . = ALIGN(4);
42 .got : AT ( LOADADDR(.data) + SIZEOF(.data) ) { *(.got) }
43 _i386boot_romdata_size = SIZEOF(.data) + SIZEOF(.got);
wdenk2262cfe2002-11-18 00:14:45 +000044
45
wdenk8bde7f72003-06-27 21:31:46 +000046 . = ALIGN(4);
wdenk2262cfe2002-11-18 00:14:45 +000047 _i386boot_bss_start = ABSOLUTE(.);
Wolfgang Denk64134f02008-01-12 20:31:39 +010048 .bss (NOLOAD) : { *(.bss) }
wdenk2262cfe2002-11-18 00:14:45 +000049 _i386boot_bss_size = SIZEOF(.bss);
wdenk8bde7f72003-06-27 21:31:46 +000050
51
wdenk2262cfe2002-11-18 00:14:45 +000052 /* 16bit realmode trampoline code */
53 .realmode 0x7c0 : AT ( LOADADDR(.got) + SIZEOF(.got) ) { *(.realmode) }
wdenk8bde7f72003-06-27 21:31:46 +000054
wdenk2262cfe2002-11-18 00:14:45 +000055 _i386boot_realmode = LOADADDR(.realmode);
56 _i386boot_realmode_size = SIZEOF(.realmode);
wdenk8bde7f72003-06-27 21:31:46 +000057
wdenk2262cfe2002-11-18 00:14:45 +000058 /* 16bit BIOS emulation code (just enough to boot Linux) */
59 .bios 0 : AT ( LOADADDR(.realmode) + SIZEOF(.realmode) ) { *(.bios) }
wdenk8bde7f72003-06-27 21:31:46 +000060
wdenk2262cfe2002-11-18 00:14:45 +000061 _i386boot_bios = LOADADDR(.bios);
62 _i386boot_bios_size = SIZEOF(.bios);
wdenk8bde7f72003-06-27 21:31:46 +000063
64
Wolfgang Denk807d5d72005-08-31 12:28:00 +020065 . = .;
wdenk8bde7f72003-06-27 21:31:46 +000066 __u_boot_cmd_start = .;
67 .u_boot_cmd : { *(.u_boot_cmd) }
68 __u_boot_cmd_end = .;
69
wdenk2262cfe2002-11-18 00:14:45 +000070
71 /* The load addresses below assumes that the flash
72 * will be mapped so that 0x387f0000 == 0xffff0000
73 * at reset time
74 *
wdenk8bde7f72003-06-27 21:31:46 +000075 * The fe00 and ff00 offsets of the start32 and start16
wdenk2262cfe2002-11-18 00:14:45 +000076 * segments are arbitrary, the just have to be mapped
77 * at reset and the code have to fit.
78 * The fff0 offset of reset is important, however.
79 */
wdenk8bde7f72003-06-27 21:31:46 +000080
81
wdenk2262cfe2002-11-18 00:14:45 +000082 . = 0xfffffe00;
wdenk8bde7f72003-06-27 21:31:46 +000083 .start32 : AT (0x387ffe00) { *(.start32); }
84
wdenk2262cfe2002-11-18 00:14:45 +000085 . = 0xff00;
wdenk8bde7f72003-06-27 21:31:46 +000086 .start16 : AT (0x387fff00) { *(.start16); }
87
wdenk2262cfe2002-11-18 00:14:45 +000088 . = 0xfff0;
wdenk8bde7f72003-06-27 21:31:46 +000089 .reset : AT (0x387ffff0) { *(.reset); }
wdenk2262cfe2002-11-18 00:14:45 +000090 _i386boot_end = (LOADADDR(.reset) + SIZEOF(.reset) );
91}