blob: ef5d9417a26fb4c0f19e851a30c0ccc6b3117ce2 [file] [log] [blame]
Graeme Russc620c012008-12-07 10:28:57 +11001/*
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{
Graeme Russde250592010-10-07 20:03:18 +110030 . = TEXT_BASE; /* Location of bootcode in flash */
Graeme Russ067f9b12010-10-07 20:03:31 +110031 __text_start = .;
Graeme Russc620c012008-12-07 10:28:57 +110032 .text : { *(.text); }
33
34 . = ALIGN(4);
Trent Piephof62fb992009-02-18 15:22:05 -080035 .rodata : { *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) }
Graeme Russc620c012008-12-07 10:28:57 +110036
Graeme Russc620c012008-12-07 10:28:57 +110037 . = ALIGN(4);
Graeme Russc620c012008-12-07 10:28:57 +110038
Graeme Russ1c409bc2009-11-24 20:04:21 +110039 .data : { *(.data) }
Graeme Russc620c012008-12-07 10:28:57 +110040 . = ALIGN(4);
Graeme Russ1c409bc2009-11-24 20:04:21 +110041
42 .interp : { *(.interp) }
43 . = ALIGN(4);
44
45 .dynsym : { *(.dynsym) }
46 . = ALIGN(4);
47
48 .dynstr : { *(.dynstr) }
49 . = ALIGN(4);
50
51 .hash : { *(.hash) }
52 . = ALIGN(4);
53
54 .got : { *(.got) }
55 . = ALIGN(4);
56
57 .got.plt : { *(.got.plt) }
58 . = ALIGN(4);
59
60 .dynamic (NOLOAD) : { *(.dynamic) }
61 . = ALIGN(4);
62
Graeme Russc620c012008-12-07 10:28:57 +110063 __u_boot_cmd_start = .;
64 .u_boot_cmd : { *(.u_boot_cmd) }
Graeme Russ1c409bc2009-11-24 20:04:21 +110065 . = ALIGN(4);
Graeme Russc620c012008-12-07 10:28:57 +110066 __u_boot_cmd_end = .;
Graeme Russc620c012008-12-07 10:28:57 +110067
Graeme Russ067f9b12010-10-07 20:03:31 +110068 __rel_dyn_start = .;
Graeme Russ1c409bc2009-11-24 20:04:21 +110069 .rel.dyn : { *(.rel.dyn) }
Graeme Russ067f9b12010-10-07 20:03:31 +110070 __rel_dyn_end = .;
Graeme Russc620c012008-12-07 10:28:57 +110071
72 . = ALIGN(4);
Graeme Russ067f9b12010-10-07 20:03:31 +110073 __bss_start = ABSOLUTE(.);
Graeme Russc620c012008-12-07 10:28:57 +110074 .bss (NOLOAD) : { *(.bss) }
Graeme Russ067f9b12010-10-07 20:03:31 +110075 __bss_size = SIZEOF(.bss);
Graeme Russc620c012008-12-07 10:28:57 +110076
77 /* 16bit realmode trampoline code */
Graeme Russd664adb2010-10-07 20:03:20 +110078 .realmode 0x7c0 : AT ( LOADADDR(.rel.dyn) + SIZEOF(.rel.dyn) ) { KEEP(*(.realmode)) }
Graeme Russc620c012008-12-07 10:28:57 +110079
Graeme Russ067f9b12010-10-07 20:03:31 +110080 __realmode_start = LOADADDR(.realmode);
81 __realmode_size = SIZEOF(.realmode);
Graeme Russc620c012008-12-07 10:28:57 +110082
83 /* 16bit BIOS emulation code (just enough to boot Linux) */
Graeme Russd664adb2010-10-07 20:03:20 +110084 .bios 0 : AT ( LOADADDR(.realmode) + SIZEOF(.realmode) ) { KEEP(*(.bios)) }
Graeme Russc620c012008-12-07 10:28:57 +110085
Graeme Russ067f9b12010-10-07 20:03:31 +110086 __bios_start = LOADADDR(.bios);
87 __bios_size = SIZEOF(.bios);
Graeme Russc620c012008-12-07 10:28:57 +110088
89 /* The load addresses below assumes that the flash
90 * will be mapped so that 0x387f0000 == 0xffff0000
91 * at reset time
92 *
93 * The fe00 and ff00 offsets of the start32 and start16
94 * segments are arbitrary, the just have to be mapped
95 * at reset and the code have to fit.
Graeme Russ85ffbbd2008-12-07 10:28:58 +110096 * The fff0 offset of resetvec is important, however.
Graeme Russc620c012008-12-07 10:28:57 +110097 */
Graeme Russc620c012008-12-07 10:28:57 +110098 . = 0xfffffe00;
Graeme Russd664adb2010-10-07 20:03:20 +110099 .start32 : AT (TEXT_BASE + 0x3fe00) { KEEP(*(.start32)); }
Graeme Russc620c012008-12-07 10:28:57 +1100100
101 . = 0xf800;
Graeme Russd664adb2010-10-07 20:03:20 +1100102 .start16 : AT (TEXT_BASE + 0x3f800) { KEEP(*(.start16)); }
Graeme Russc620c012008-12-07 10:28:57 +1100103
104 . = 0xfff0;
Graeme Russd664adb2010-10-07 20:03:20 +1100105 .resetvec : AT (TEXT_BASE + 0x3fff0) { KEEP(*(.resetvec)); }
Graeme Russc620c012008-12-07 10:28:57 +1100106}