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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [lib/] [libbsp/] [m68k/] [gen68360/] [startup/] [linkcmds.prom] - Blame information for rev 493

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Line No. Rev Author Line
1 30 unneback 
/*
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 * This file contains GNU linker directives for a generic MC68360 board.
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 * Variations in memory size and allocation can be made by
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 * overriding some values with linker command-line arguments.
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 *
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 * These linker directives are for producing a PROM version.
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 * The data segment is placed at the end of the text segment in the PROM.
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 * The start-up code takes care of copying this region to RAM.
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 *
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 * Saskatchewan Accelerator Laboratory
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 * University of Saskatchewan
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 * Saskatoon, Saskatchewan, CANADA
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 * eric@skatter.usask.ca
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 *
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 *  $Id: linkcmds.prom,v 1.2 2001-09-27 12:00:08 chris Exp $
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 */
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/*
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 * Declare some sizes.
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 * A heap size of 0 means `use all available memory for the heap'.
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 */
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_RamBase = DEFINED(_RamBase) ? _RamBase : 0x0;
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_RamSize = DEFINED(_RamSize) ? _RamSize : 64M;
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_HeapSize = DEFINED(_HeapSize) ? _HeapSize : 0x0;
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_StackSize = DEFINED(_StackSize) ? _StackSize : 0x1000;
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/*
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 * Declare on-board memory.
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 */
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MEMORY {
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          ram : ORIGIN = 0x00000000, LENGTH = 64M
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          rom : ORIGIN = 0x0F000000, LENGTH = 1M
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        dpram : ORIGIN = 0x0E000000, LENGTH = 8k
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}
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/*
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 * Load objects
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 */
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SECTIONS {
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        /*
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         * Boot PROM
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         */
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        rom : {
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                _RomBase = .;
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        } >rom
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        /*
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         * Dynamic RAM
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         */
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        ram : {
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                _RamBase = .;
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        } >ram
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        /*
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         * Text, data and bss segments
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         */
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        .text : AT(0x0) {
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                *(.text)
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                /*
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                 * C++ constructors/destructors
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                 */
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                *(.gnu.linkonce.t.*)
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                /*
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                 * Initialization and finalization code.
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                 */
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                PROVIDE (_init = .);
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                *crti.o(.init)
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                *(.init)
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                *crtn.o(.init)
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                PROVIDE (_fini = .);
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                *crti.o(.fini)
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                *(.fini)
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                *crtn.o(.fini)
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                /*
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                 * C++ constructors/destructors
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                 */
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                . = ALIGN (16);
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                *crtbegin.o(.ctors)
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                *(.ctors)
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                *crtend.o(.ctors)
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                *crtbegin.o(.dtors)
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                *(.dtors)
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                *crtend.o(.dtors)
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                /*
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                 * Exception frame info
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                 */
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                . = ALIGN (16);
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                *(.eh_frame)
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                /*
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                 * Read-only data
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                 */
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                . = ALIGN (16);
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                _rodata_start = . ;
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                *(.rodata)
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                *(.gnu.linkonce.r*)
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                 . = ALIGN (16);
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                PROVIDE (etext = .);
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        } >rom
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        .data : AT(SIZEOF(.text)) {
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                _copy_start = .;
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                *(.data)
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                *(.gnu.linkonce.d*)
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                *(.gcc_except_table)
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                . = ALIGN (16);
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                PROVIDE (edata = .);
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                _copy_end = .;
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        } >ram
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        .bss : {
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                M68Kvec = .;
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                . += (256 * 4);
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                _clear_start = .;
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                *(.bss)
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                *(COMMON)
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                . = ALIGN (16);
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                PROVIDE (end = .);
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                . += _StackSize;
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                . = ALIGN (16);
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                _stack_init = .;
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                _clear_end = .;
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                _WorkspaceBase = .;
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        } >ram
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        /*
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         * On-chip memory/peripherals
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         */
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        dpram : {
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                m360 = .;
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                . += (8 * 1024);
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        } >dpram
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}

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