diff options
Diffstat (limited to 'nuttx/configs/sama5d3x-ek/scripts/pg-sram.ld')
| -rw-r--r-- | nuttx/configs/sama5d3x-ek/scripts/pg-sram.ld | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/nuttx/configs/sama5d3x-ek/scripts/pg-sram.ld b/nuttx/configs/sama5d3x-ek/scripts/pg-sram.ld new file mode 100644 index 000000000..17eb81d56 --- /dev/null +++ b/nuttx/configs/sama5d3x-ek/scripts/pg-sram.ld @@ -0,0 +1,157 @@ +/**************************************************************************** + * configs/sama5d3x-ek/scripts/pg-isram.ld + * + * Copyright (C) 2013 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/* The SAMA5D3 has 128 KB of ISRAM beginning at virtual address 0x0030:0000. + * The .text vitual address space begins at the same location as the physical + * address space: 0x0030:0000. The virtual space is broken up into three + * regions: + * + * PHYSICAL VIRTUAL + * NAME DESCRIPTION SIZE START SIZE START + * -------- -------------------------- ----- ----------- ------- ----------- + * locked Pages locked in memory. 40KB 0x0030:0000 40KB 0x0030:0000 + * paged Pages in nonvolatile store. 48KB 0x0030:a000 48KB 0x0030:a000 + * data .data/.bss/heap. 24KB 0x0031:6000 24KB 0x0031:6000 + * Reserved for page table 16KB 0x0031:c000 16KB 0x0031:c000 + * -------- -------------------------- ----- ----------- ------- ----------- + * 128KB 0x0032 0000 128KB 0x0032 0000 + * + * These region sizes must match the size in pages specified for each region + * in the NuttX configuration file: CONFIG_PAGING_NLOCKED, CONFIG_PAGING_NVPAGED, + * and CONFIG_PAGING_NDATA. + * + * NOTE 1: The locked region is should be big here so that you can enable lots of + * debug output without overflowing the locked region. 32KB would probably be + * plenty if this were a real, optimized application. + * + * NOTE 2: Different compilers will compile the code to different sizes. If you + * get a link time error saying that the locked region is full, you may have to + * re-organize this memory layout (here and in defconfig) to make the locked + * region even bigger. + */ + +MEMORY +{ + locked (rx) : ORIGIN = 0x00300000, LENGTH = 40K + paged (rx) : ORIGIN = 0x0030a000, LENGTH = 48K + data (rw) : ORIGIN = 0x00316000, LENGTH = 24K +} + +OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm") +OUTPUT_ARCH(arm) +ENTRY(entry) +ENTRY(_stext) + +SECTIONS +{ + .locked : { + _slocked = ABSOLUTE(.); + *(.vectors) + up_head.o locked.r (.text .text.*) + up_head.o locked.r (.fixup) + up_head.o locked.r (.gnu.warning) + up_head.o locked.r (.rodata .rodata.*) + up_head.o locked.r (.gnu.linkonce.t.*) + up_head.o locked.r (.glue_7) + up_head.o locked.r (.glue_7t) + up_head.o locked.r (.got) + up_head.o locked.r (.gcc_except_table) + up_head.o locked.r (.gnu.linkonce.r.*) + _elocked = ABSOLUTE(.); + } >locked + + .init_section : { + _sinit = ABSOLUTE(.); + *(.init_array .init_array.*) + _einit = ABSOLUTE(.); + } > locked + + /* .ARM.exidx is sorted, so has to go in its own output section. */ + + PROVIDE_HIDDEN (__exidx_start = .); + .ARM.exidx : + { + *(.ARM.exidx* .gnu.linkonce.armexidx.*) + } > isram + PROVIDE_HIDDEN (__exidx_end = .); + + _eronly = ABSOLUTE(.); + + .paged : { + _spaged = ABSOLUTE(.); + *(.text .text.*) + *(.fixup) + *(.gnu.warning) + *(.rodata .rodata.*) + *(.gnu.linkonce.t.*) + *(.glue_7) + *(.glue_7t) + *(.got) + *(.gcc_except_table) + *(.gnu.linkonce.r.*) + *(.ARM.extab*) + *(.gnu.linkonce.armextab.*) + _epaged = ABSOLUTE(.); + } > paged + + .data : { + _sdata = ABSOLUTE(.); + *(.data .data.*) + *(.gnu.linkonce.d.*) + CONSTRUCTORS + _edata = ABSOLUTE(.); + } > data AT > locked + + .bss : { + _sbss = ABSOLUTE(.); + *(.bss .bss.*) + *(.gnu.linkonce.b.*) + *(COMMON) + _ebss = ABSOLUTE(.); + } > data + /* Stabs debugging sections. */ + .stab 0 : { *(.stab) } + .stabstr 0 : { *(.stabstr) } + .stab.excl 0 : { *(.stab.excl) } + .stab.exclstr 0 : { *(.stab.exclstr) } + .stab.index 0 : { *(.stab.index) } + .stab.indexstr 0 : { *(.stab.indexstr) } + .comment 0 : { *(.comment) } + .debug_abbrev 0 : { *(.debug_abbrev) } + .debug_info 0 : { *(.debug_info) } + .debug_line 0 : { *(.debug_line) } + .debug_pubnames 0 : { *(.debug_pubnames) } + .debug_aranges 0 : { *(.debug_aranges) } +} |