/* * This file contains GNU linker directives for an MCF5206eLITE * evaluation board. * * Variations in memory size and allocation can be made by * overriding some values with linker command-line arguments. * * Copyright (C) 2000 OKTET Ltd., St.-Petersburg, Russia * Author: Victor V. Vengerov * * This file based on work: * David Fiddes, D.J.Fiddes@hw.ac.uk * http://www.calm.hw.ac.uk/davidf/coldfire/ * * The license and distribution terms for this file may be * found in the file LICENSE in this distribution or at * * http://www.rtems.org/license/LICENSE. */ /* * Declare some sizes. * XXX: The assignment of ". += XyzSize;" fails in older gld's if the * number used there is not constant. If this happens to you, edit * the lines marked XXX below to use a constant value. */ /* * Declare system clock frequency. */ _SYS_CLOCK_FREQUENCY = DEFINED(_SYS_CLOCK_FREQUENCY) ? _SYS_CLOCK_FREQUENCY : 54000000; /* * Declare size of heap. * A heap size of 0 means "Use all available memory for the heap". * Initial stack located in on-chip SRAM and not declared there. */ HeapSize = DEFINED(HeapSize) ? HeapSize : 0x0; RamBase = DEFINED(RamBase) ? RamBase : 0x30000000; RamSize = DEFINED(RamSize) ? RamSize : 0x00100000; RamEnd = RamBase + RamSize; /* * Setup the memory map of the MCF5206eLITE evaluation board * * The "rom" section is in USER Flash on the board * The "ram" section is placed in USER RAM starting at 10000h * */ MEMORY { ram : ORIGIN = 0x30000000, LENGTH = 0x00100000 rom : ORIGIN = 0xFFE20000, LENGTH = 128k } MBase = 0x10000000; ENTRY(start) STARTUP(start.o) /* Interrupt Vector table located at start of external static RAM */ _VBR = 0x30000000; SECTIONS { /* * Dynamic RAM */ ram : { RamBase = .; RamBase = .; /* Reserve space for interrupt table */ . += 0x400; } >ram /* * Text, data and bss segments */ .text : { CREATE_OBJECT_SYMBOLS *(.text*) /* * C++ constructors/destructors */ *(.gnu.linkonce.t.*) /* * Initialization and finalization code. */ . = ALIGN (16); PROVIDE (_init = .); *crti.o(.init) *(.init) *crtn.o(.init) . = ALIGN (16); PROVIDE (_fini = .); *crti.o(.fini) *(.fini) *crtn.o(.fini) /* * Special FreeBSD sysctl sections. */ . = ALIGN (16); __start_set_sysctl_set = .; *(set_sysctl_*); __stop_set_sysctl_set = ABSOLUTE(.); *(set_domain_*); *(set_pseudo_*); /* * C++ constructors/destructors */ . = ALIGN (16); *crtbegin.o(.ctors) *(.ctors) *crtend.o(.ctors) *crtbegin.o(.dtors) *(.dtors) *crtend.o(.dtors) /* * Exception frame info */ . = ALIGN (16); *(.eh_frame) /* * Read-only data */ . = ALIGN (16); _rodata_start = .; *(.rodata*) KEEP (*(SORT(.rtemsroset.*))) *(.gnu.linkonce.r*) . = ALIGN (16); PROVIDE (etext = .); } > ram .tdata : { _TLS_Data_begin = .; *(.tdata .tdata.* .gnu.linkonce.td.*) _TLS_Data_end = .; } >ram .tbss : { _TLS_BSS_begin = .; *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon) _TLS_BSS_end = .; } >ram _TLS_Data_size = _TLS_Data_end - _TLS_Data_begin; _TLS_Data_begin = _TLS_Data_size != 0 ? _TLS_Data_begin : _TLS_BSS_begin; _TLS_Data_end = _TLS_Data_size != 0 ? _TLS_Data_end : _TLS_BSS_begin; _TLS_BSS_size = _TLS_BSS_end - _TLS_BSS_begin; _TLS_Size = _TLS_BSS_end - _TLS_Data_begin; _TLS_Alignment = MAX (ALIGNOF (.tdata), ALIGNOF (.tbss)); .data BLOCK (0x4) : { copy_start = .; *(.shdata) . = ALIGN (0x10); *(.data*) KEEP (*(SORT(.rtemsrwset.*))) . = ALIGN (0x10); *(.gcc_exc) *(.gcc_except_table*) *(.jcr) . = ALIGN (0x10); *(.gnu.linkonce.d*) . = ALIGN (0x10); _edata = .; copy_end = .; } > ram .bss BLOCK (0x4) : { clear_start = . ; *(.shbss) *(.dynbss) *(.bss* .gnu.linkonce.b.*) *(COMMON) . = ALIGN(0x10); _end = .; clear_end = .; } > ram .rtemsstack (NOLOAD) : { *(SORT(.rtemsstack.*)) WorkAreaBase = .; } > ram .stab 0 (NOLOAD) : { *(.stab) } .stabstr 0 (NOLOAD) : { *(.stabstr) } }