blob: ac8d3dbecdad39c97ca9e25e6cdfbd69d42647df [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
29{
30 . = 0x387e0000; /* Where bootcode in the flash is mapped */
31 .text : { *(.text); }
32
33 . = ALIGN(4);
34 .rodata : { *(.rodata) }
35
36 . = 0x400000; /* Ram data segment to use */
37 _i386boot_romdata_dest = ABSOLUTE(.);
38 .data : AT ( LOADADDR(.rodata) + SIZEOF(.rodata) ) { *(.data) }
39 _i386boot_romdata_start = LOADADDR(.data);
40
41 . = ALIGN(4);
42 .got : AT ( LOADADDR(.data) + SIZEOF(.data) ) { *(.got) }
43 _i386boot_romdata_size = SIZEOF(.data) + SIZEOF(.got);
44
45
46 . = ALIGN(4);
47 _i386boot_bss_start = ABSOLUTE(.);
48 .bss : { *(.bss) }
49 _i386boot_bss_size = SIZEOF(.bss);
50
51
52 /* 16bit realmode trampoline code */
53 .realmode 0x7c0 : AT ( LOADADDR(.got) + SIZEOF(.got) ) { *(.realmode) }
54
55 _i386boot_realmode = LOADADDR(.realmode);
56 _i386boot_realmode_size = SIZEOF(.realmode);
57
58 /* 16bit BIOS emulation code (just enough to boot Linux) */
59 .bios 0 : AT ( LOADADDR(.realmode) + SIZEOF(.realmode) ) { *(.bios) }
60
61 _i386boot_bios = LOADADDR(.bios);
62 _i386boot_bios_size = SIZEOF(.bios);
63
64
65 /* The load addresses below assumes that the flash
66 * will be mapped so that 0x387f0000 == 0xffff0000
67 * at reset time
68 *
69 * The fe00 and ff00 offsets of the start32 and start16
70 * segments are arbitrary, the just have to be mapped
71 * at reset and the code have to fit.
72 * The fff0 offset of reset is important, however.
73 */
74
75
76 . = 0xfffffe00;
77 .start32 : AT (0x387ffe00) { *(.start32); }
78
79 . = 0xff00;
80 .start16 : AT (0x387fff00) { *(.start16); }
81
82 . = 0xfff0;
83 .reset : AT (0x387ffff0) { *(.reset); }
84 _i386boot_end = (LOADADDR(.reset) + SIZEOF(.reset) );
85}