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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
*/
/*
* Declare some sizes.
* A heap size of 0 means `use all available memory for the heap'.
*/
RamBase = DEFINED(RamBase) ? RamBase : 0x0;
RamSize = DEFINED(RamSize) ? RamSize : 64M;
RamEnd = RamBase + RamSize;
HeapSize = DEFINED(HeapSize) ? HeapSize : 0x0;
/*
* Declare on-board memory.
*/
MEMORY {
ram : ORIGIN = 0x00000000, LENGTH = 64M
rom : ORIGIN = 0x0F000000, LENGTH = 1M
dpram : ORIGIN = 0x0E000000, LENGTH = 8k
}
ENTRY(start)
STARTUP(start.o)
/*
* Load objects
*/
SECTIONS {
/*
* Boot PROM
*/
rom : {
_RomBase = .;
} >rom
/*
* Dynamic RAM
*/
ram : {
RamBase = .;
} >ram
/*
* Text, data and bss segments
*/
.text : {
*(.text*)
/*
* C++ constructors/destructors
*/
*(.gnu.linkonce.t.*)
/*
* Initialization and finalization code.
*/
PROVIDE (_init = .);
*crti.o(.init)
*(.init)
*crtn.o(.init)
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 : {
_copy_start = .;
*(.data*)
KEEP (*(SORT(.rtemsrwset.*)))
*(.gnu.linkonce.d*)
*(.gcc_except_table*)
*(.jcr)
. = ALIGN (16);
PROVIDE (edata = .);
_copy_end = .;
} >ram
.bss : {
M68Kvec = .;
. += (256 * 4);
_clear_start = .;
*(.dynbss)
*(.bss* .gnu.linkonce.b.*)
*(COMMON)
. = ALIGN (16);
PROVIDE (end = .);
_clear_end = .;
} >ram
.rtemsstack (NOLOAD) : {
*(SORT(.rtemsstack.*))
WorkAreaBase = .;
} >ram
/*
* On-chip memory/peripherals
*/
dpram : {
m360 = .;
. += (8 * 1024);
} >dpram
/* Stabs debugging sections. */
.stab 0 : { *(.stab) }
.stabstr 0 : { *(.stabstr) }
.stab.excl 0 : { *(.stab.excl) }
.stab.exclstr 0 : { *(.stab.exclstr) }
.stab.index 0 : { *(.stab.index) }
.stab.indexstr 0 : { *(.stab.indexstr) }
.comment 0 : { *(.comment) }
/* DWARF debug sections.
Symbols in the DWARF debugging sections are relative to the beginning
of the section so we begin them at 0. */
/* DWARF 1 */
.debug 0 : { *(.debug) }
.line 0 : { *(.line) }
/* GNU DWARF 1 extensions */
.debug_srcinfo 0 : { *(.debug_srcinfo) }
.debug_sfnames 0 : { *(.debug_sfnames) }
/* DWARF 1.1 and DWARF 2 */
.debug_aranges 0 : { *(.debug_aranges) }
.debug_pubnames 0 : { *(.debug_pubnames) }
/* DWARF 2 */
.debug_info 0 : { *(.debug_info) }
.debug_abbrev 0 : { *(.debug_abbrev) }
.debug_line 0 : { *(.debug_line) }
.debug_frame 0 : { *(.debug_frame) }
.debug_str 0 : { *(.debug_str) }
.debug_loc 0 : { *(.debug_loc) }
.debug_macinfo 0 : { *(.debug_macinfo) }
/* SGI/MIPS DWARF 2 extensions */
.debug_weaknames 0 : { *(.debug_weaknames) }
.debug_funcnames 0 : { *(.debug_funcnames) }
.debug_typenames 0 : { *(.debug_typenames) }
.debug_varnames 0 : { *(.debug_varnames) }
/* These must appear regardless of . */
}
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