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/*
* This file contains GNU linker directives for a generic MC68360 board.
* Variations in memory size and allocation can be made by
* overriding some values with linker command-line arguments.
*
* Saskatchewan Accelerator Laboratory
* University of Saskatchewan
* Saskatoon, Saskatchewan, CANADA
* eric@skatter.usask.ca
*
* $Id$
*/
/*
* 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.
*/
HeapSize = DEFINED(HeapSize) ? HeapSize : 0x10000;
StackSize = DEFINED(StackSize) ? StackSize : 0x1000;
/*
* Declare on-board memory.
*/
MEMORY {
ram : ORIGIN = 0x00000000, LENGTH = 64M
rom : ORIGIN = 0x0F000000, LENGTH = 1M
dpram : ORIGIN = 0x0E000000, LENGTH = 8k
}
/*
* 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);
*(.eh_fram)
. = ALIGN (16);
/*
* 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__ = .;
etext = .;
_etext = .;
} >ram
.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; /* XXX -- Old gld can't handle this */
. += StackSize; /* XXX -- Old gld can't handle this */
/* . += 0x10000; */ /* HeapSize for old gld */
/* . += 0x1000; */ /* StackSize for old gld */
. = ALIGN (16);
stack_init = .;
clear_end = .;
_WorkspaceBase = .;
__WorkspaceBase = .;
} >ram
/*
* On-chip memory/peripherals
*/
dpram : {
m360 = .;
_m360 = .;
. += (8 * 1024);
} >dpram
}
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