2 * Copyright © 2012 Keith Packard <keithp@keithp.com>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
20 rom (rx) : ORIGIN = 0x08001000, LENGTH = 25K
21 flash (r): ORIGIN = 0x08007400, LENGTH = 3k
22 ram (!w) : ORIGIN = 0x20000000, LENGTH = 6k - 128
23 stack (!w) : ORIGIN = 0x20000000 + 6k - 128, LENGTH = 128
28 EXTERN (stm_interrupt_vector)
35 .interrupt ORIGIN(ram) : AT (ORIGIN(rom)) {
36 __interrupt_start__ = .;
37 __interrupt_rom__ = ORIGIN(rom);
38 *(.interrupt) /* Interrupt vectors */
39 __interrupt_end__ = .;
42 .text ORIGIN(rom) + 0x100 : {
45 /* Ick. What I want is to specify the
46 * addresses of some global constants so
47 * that I can find them across versions
48 * of the application. I can't figure out
49 * how to make gnu ld do that, so instead
50 * we just load the two files that include
51 * these defines in the right order here and
52 * expect things to 'just work'. Don't change
53 * the contents of those files, ok?
55 ao_romconfig.o(.romconfig*)
56 ao_product.o(.romconfig*)
58 *(.text*) /* Executable code */
59 *(.ARM.exidx* .gnu.linkonce.armexidx.*)
60 *(.rodata*) /* Constants */
66 /* Boot data which must live at the start of ram so that
67 * the application and bootloader share the same addresses.
68 * This must be all uninitialized data
77 /* Functions placed in RAM (required for flashing)
79 * Align to 8 bytes as that's what the ARM likes text
80 * segment alignments to be, and if we don't, then
81 * we end up with a mismatch between the location in
82 * ROM and the desired location in RAM. I don't
83 * entirely understand this, but at least this appears
89 __text_ram_start__ = .;
94 /* Data -- relocated to RAM, but written to ROM
97 *(.data) /* initialized data */
112 PROVIDE(__stack__ = ORIGIN(stack) + LENGTH(stack));
114 __flash__ = ORIGIN(flash);