/* * This file is part of the libopencm3 project. * * Copyright (C) 2009 Uwe Hermann * Copyright (C) 2013 Frantisek Burian * * This library is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This library 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 Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this library. If not, see . */ /* Generic linker script for all targets using libopencm3. */ /* Enforce emmition of the vector table. */ EXTERN(vector_table) /* Define the entry point of the output file. */ ENTRY(reset_handler) /* Define memory regions. */ MEMORY { /* RAM is always used */ ram (rwx) : ORIGIN = RAM_OFF, LENGTH = RAM #if defined(ROM) rom (rx) : ORIGIN = ROM_OFF, LENGTH = ROM #endif #if defined(ROM2) rom2 (rx) : ORIGIN = ROM2_OFF, LENGTH = ROM2 #endif #if defined(RAM1) ram1 (rwx) : ORIGIN = RAM1_OFF, LENGTH = RAM1 #endif #if defined(RAM2) ram2 (rwx) : ORIGIN = RAM2_OFF, LENGTH = RAM2 #endif #if defined(CCM) ccm (rwx) : ORIGIN = CCM_OFF, LENGTH = CCM #endif #if defined(EEP) eep (r) : ORIGIN = EEP_OFF, LENGTH = EEP #endif #if defined(XSRAM) xsram (rw) : ORIGIN = XSRAM_OFF, LENGTH = XSRAM #endif #if defined(XDRAM) xdram (rw) : ORIGIN = XDRAM_OFF, LENGTH = XDRAM #endif } /* Define sections. */ SECTIONS { .text : { *(.vectors) /* Vector table */ *(.text*) /* Program code */ . = ALIGN(4); *(.rodata*) /* Read-only data */ . = ALIGN(4); } >rom /* C++ Static constructors/destructors, also used for * __attribute__((constructor)) and the likes. */ .preinit_array : { . = ALIGN(4); __preinit_array_start = .; KEEP (*(.preinit_array)) __preinit_array_end = .; } >rom .init_array : { . = ALIGN(4); __init_array_start = .; KEEP (*(SORT(.init_array.*))) KEEP (*(.init_array)) __init_array_end = .; } >rom .fini_array : { . = ALIGN(4); __fini_array_start = .; KEEP (*(.fini_array)) KEEP (*(SORT(.fini_array.*))) __fini_array_end = .; } >rom /* * Another section used by C++ stuff, appears when using newlib with * 64bit (long long) printf support */ .ARM.extab : { *(.ARM.extab*) } >rom .ARM.exidx : { __exidx_start = .; *(.ARM.exidx*) __exidx_end = .; } >rom . = ALIGN(4); _etext = .; .data : { _data = .; *(.data*) /* Read-write initialized data */ . = ALIGN(4); _edata = .; } >ram AT >rom _data_loadaddr = LOADADDR(.data); .bss : { *(.bss*) /* Read-write zero initialized data */ *(COMMON) . = ALIGN(4); _ebss = .; } >ram #if defined(EEP) .eep : { *(.eeprom*) . = ALIGN(4); } >eep #endif #if defined(CCM) .ccm : { *(.ccmram*) . = ALIGN(4); } >ccm #endif #if defined(RAM1) .ram1 : { *(.ram1*) . = ALIGN(4); } >ram1 #endif #if defined(RAM2) .ram2 : { *(.ram2*) . = ALIGN(4); } >ram2 #endif #if defined(XSRAM) .xsram : { *(.xsram*) . = ALIGN(4); } >xsram #endif #if defined(XDRAM) .xdram : { *(.xdram*) . = ALIGN(4); } >xdram #endif /* * The .eh_frame section appears to be used for C++ exception handling. * You may need to fix this if you're using C++. */ /DISCARD/ : { *(.eh_frame) } . = ALIGN(4); end = .; } PROVIDE(_stack = ORIGIN(ram) + LENGTH(ram));