/**************************************************************************** * boards/sparc/bm3803/xx3803/scripts/linksparc.ld * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. The * ASF licenses this file to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance with the * License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations * under the License. * ****************************************************************************/ /* * The memory map looks like this: * +--------------------+ <- low memory * | .text | * | etext | * | ctor list | the ctor and dtor lists are for * | dtor list | C++ support * | _endtext | * +--------------------+ * | .data | initialized data goes here * | _sdata | * | _edata | * +--------------------+ * | .bss | * | __bss_start | start of bss, cleared by crt0 * | _end | start of heap, used by sbrk() * +--------------------+ * | heap space | * | _ENDHEAP | * | stack space | * | __stack | top of stack * +--------------------+ <- high memory */ /* * User modifiable values: * * _CLOCK_SPEED in Mhz (used to program the counter/timers) * * _PROM_SIZE size of PROM (permissible values are 128K, 256K, * 512K, 1M, 2M, 4M, 8M and 16M) * _RAM_SIZE size of RAM (permissible values are 256K, 512K, * 1M, 2M, 4M, 8M, 16M, and 32M) * */ /* Default values, can be overridden */ _PROM_SIZE = 4M; /*_RAM_SIZE = 512K;*/ _RAM_SIZE = 1M; _RAM_START = 0x40000000; _RAM_END = _RAM_START + _RAM_SIZE; _PROM_START = 0x00000000; _PROM_END = _PROM_START + _PROM_SIZE; /* * Alternate names without leading _. */ PROM_START = _PROM_START; PROM_SIZE = _PROM_SIZE; PROM_END = _PROM_END; RAM_START = _RAM_START; RAM_SIZE = _RAM_SIZE; RAM_END = _RAM_END; /* PROVIDE (__stack = _RAM_END); //move to the file of stack.ld */ __stack = _RAM_END; /* * Base address of the on-CPU peripherals */ _BM3803_REG = 0x80000000; BM3803_REG = 0x80000000; /* these are the maximum values */ MEMORY { rom (rx) : ORIGIN = 0x00000000, LENGTH = 4M ram (rw!x) : ORIGIN = 0x40000000, LENGTH = 1M } OUTPUT_FORMAT("elf32-sparc") OUTPUT_ARCH(sparc) __DYNAMIC = 0; ENTRY(__start) /* * stick everything in ram (of course) */ SECTIONS { .text : { CREATE_OBJECT_SYMBOLS text_start = .; _text_start = .; *(.text) . = ALIGN (16); *(.eh_frame) . = ALIGN (16); /* *(.gnu.linkonce.t*) */ /* * C++ constructors */ __CTOR_LIST__ = .; LONG((__CTOR_END__ - __CTOR_LIST__) / 4 - 2) *(.ctors) LONG(0) __CTOR_END__ = .; __DTOR_LIST__ = .; LONG((__DTOR_END__ - __DTOR_LIST__) / 4 - 2) *(.dtors) LONG(0) __DTOR_END__ = .; _rodata_start = . ; *(.rodata*) /* *(.gnu.linkonce.r*) */ _erodata = ALIGN( 0x10 ) ; etext = ALIGN(0x10); _etext = .; *(.init) *(.fini) *(.lit) *(.shdata) . = ALIGN (16); _endtext = .; } >ram /* .dynamic : { *(.dynamic) } >ram .got : { *(.got) } >ram .plt : { *(.plt) } >ram .hash : { *(.hash) } >ram .dynrel : { *(.dynrel) } >ram .dynsym : { *(.dynsym) } >ram .dynstr : { *(.dynstr) } >ram .hash : { *(.hash) } >ram */ .data : { data_start = .; _data_start = .; _sdata = . ; *(.data) /* *(.gnu.linkonce.d*) *(.gcc_except_table) */ . = ALIGN(0x10); edata = .; _edata = .; } > ram .shbss : { *(.shbss) } .bss : { __bss_start = ALIGN(0x10); _bss_start = .; bss_start = .; *(.bss) *(COMMON) end = .; _end = ALIGN(0x10); __end = ALIGN(0x10); } > ram .jcr . (NOLOAD) : { *(.jcr) } .stab . (NOLOAD) : { [ .stab ] } .stabstr . (NOLOAD) : { [ .stabstr ] } }