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/*
* This file contains GNU linker directives for a generic MC68360 board.
* These linker directives are for producing a PROM version..
* To create the PROM image from the linkter output you must use objcopy
* (--adjust-section-vma) to place the data segment at the end of the text
* segment in the PROM. The start-up code takes care of copying this region
* to RAM.
*
* Saskatchewan Accelerator Laboratory
* University of Saskatchewan
* Saskatoon, Saskatchewan, CANADA
* eric@skatter.usask.ca
*
* $Id$
*/
/*
* a.out format doesn't handle prom images very well
*/
OUTPUT_FORMAT(coff-m68k)
/*
* Declare on-board memory
*/
MEMORY {
ram : ORIGIN = 0x00000000, LENGTH = 4M
rom : ORIGIN = 0xFF000000, LENGTH = 1M
dpram : ORIGIN = 0xFE000000, LENGTH = 8k
}
/*
* Declare some sizes
*/
HeapSize = DEFINED(HeapSize) ? HeapSize : 0x10000;
StackSize = DEFINED(StackSize) ? StackSize : 0x1000;
/*
* Declare low-order three octets of Ethernet address
*/
ETHERNET_ADDRESS = DEFINED(ETHERNET_ADDRESS) ? ETHERNET_ADDRESS : 0xDEAD12;
/*
* Load objects
*/
SECTIONS {
/*
* Boot PROM
*/
rom : {
_RomBase = .;
__RomBase = .;
} >rom
/*
* Dynamic RAM
*/
ram : {
_RamBase = .;
__RamBase = .;
} >ram
/*
* Text, data and bss segments
*/
.text : {
CREATE_OBJECT_SYMBOLS
*(.text)
. = ALIGN (16);
etext = .;
_etext = .;
} >rom
.data : {
copy_start = .;
*(.data)
. = ALIGN (16);
_edata = .;
copy_end = .;
} >ram
.bss : {
M68Kvec = .;
_M68Kvec = .;
. += (256 * 4);
clear_start = .;
*(.bss)
*(COMMON)
. = ALIGN (16);
_end = .;
_HeapStart = .;
__HeapStart = .;
. += HeapSize;
. += StackSize;
. = ALIGN (16);
stack_init = .;
clear_end = .;
_WorkspaceBase = .;
__WorkspaceBase = .;
} >ram
/*
* On-chip memory/peripherals
*/
dpram : {
m360 = .;
_m360 = .;
. += (8 * 1024);
} >dpram
}
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