proxmark3/common_arm/ldscript.common
Philippe Teuwen be18b9478d fix ldscript
2022-01-08 01:12:37 +01:00

45 lines
2.5 KiB
Text

/*-----------------------------------------------------------------------------
* Copyright (C) Proxmark3 contributors. See AUTHORS.md for details.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* See LICENSE.txt for the text of the license.
*-----------------------------------------------------------------------------
*-----------------------------------------------------------------------------
* Common linker script
*-----------------------------------------------------------------------------
*/
stacksize = DEFINED(stacksize) ? stacksize : 8488;
commonareasize = 0x20;
/* AT91SAM7S256 has 256k Flash and 64k RAM */
/* AT91SAM7S512 has 512k Flash and 64k RAM */
/* boot space = 8192bytes (0x2000) */
/* osimage space = (512k - 0x2000 == 524288 - 8192 == 516096bytes == 0x7E000 ) */
MEMORY
{
bootphase1 : ORIGIN = 0x00100000, LENGTH = 0x200 /* Phase 1 bootloader: Copies real bootloader to RAM */
bootphase2 : ORIGIN = 0x00100200, LENGTH = 0x2000 - 0x200 /* Main bootloader code, stored in Flash, executed from RAM */
osimage : ORIGIN = 0x00102000, LENGTH = 512K - 0x2000 /* Place where the main OS will end up */
ram : ORIGIN = 0x00200000, LENGTH = 64K - commonareasize /* RAM, minus small common area */
stack : ORIGIN = 0x00200000 + 64K - stacksize - commonareasize, LENGTH = stacksize /* Stack */
commonarea : ORIGIN = 0x00200000 + 64K - commonareasize, LENGTH = commonareasize /* Communication between bootloader and main OS */
}
/* Export some information that can be used from within the firmware */
_bootphase1_version_pointer = ORIGIN(bootphase1) + LENGTH(bootphase1) - 0x4;
_osimage_entry = ORIGIN(osimage);
_bootrom_start = ORIGIN(bootphase1);
_bootrom_end = ORIGIN(bootphase2) + LENGTH(bootphase2);
_flash_start = ORIGIN(bootphase1);
_flash_end = ORIGIN(osimage) + LENGTH(osimage);
_stack_start = ORIGIN(stack);
_stack_end = ORIGIN(ram) + LENGTH(ram) - 8;