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|
/* linkcmds
*/
OUTPUT_ARCH(m68k)
ENTRY(start)
STARTUP(start.o)
__DYNAMIC = 0;
/*
* ROM:
* +--------------------+ <- low memory
* | .text |
* | etext |
* | ctor list | the ctor and dtor lists are for
* | dtor list | C++ support
* | _endtext |
* | temporary .data | .data is moved to RAM by crt0
* | |
* +--------------------+ <- high memory
*
*
* RAM:
* +--------------------+ <- low memory
* | .data | initialized data goes here
* | _sdata |
* | _edata |
* +--------------------+
* | .bss |
* | __bss_start | start of bss, cleared by crt0
* | _end | start of heap, used by sbrk()
* +--------------------+
* | heap space |
* | _ENDHEAP |
* | stack space |
* | __stack | top of stack
* +--------------------+ <- high memory
*/
/*
* Declare some sizes.
*/
RomBase = DEFINED(RomBase) ? RomBase : 0x90000;
RamBase = DEFINED(RamBase) ? RamBase : 0x03000;
RamSize = DEFINED(RamSize) ? RamSize : 0x7d000;
_RamEnd = RamBase + RamSize;
MEMORY
{
rom : ORIGIN = 0x90000, LENGTH = 0x70000
ram : ORIGIN = 0x03000, LENGTH = 0x7d000
}
_copy_data_from_rom = 1;
HeapSize = DEFINED(HeapSize) ? HeapSize : 0x0;
_StackSize = DEFINED(_StackSize) ? _StackSize : 0x2000;
/*
*
*/
SECTIONS
{
.text :
{
. = .;
text_start = .;
_text_start = .;
*(.text*)
. = ALIGN (16);
/*
* C++ constructors/destructors
*/
*(.gnu.linkonce.t.*)
/*
* Initialization and finalization code.
*
* Various files can provide initialization and finalization
* functions. crtbegin.o and crtend.o are two instances. The
* body of these functions are in .init and .fini sections. We
* accumulate the bodies here, and prepend function prologues
* from crti.o and function epilogues from crtn.o. crti.o must
* be linked first; crtn.o must be linked last. Because these
* are wildcards, it doesn't matter if the user does not
* actually link against crti.o and crtn.o; the linker won't
* look for a file to match a wildcard. The wildcard also
* means that it doesn't matter which directory crti.o and
* crtn.o are in.
*/
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
*
* gcc uses crtbegin.o to find the start of the constructors
* and destructors so we make sure it is first. Because this
* is a wildcard, it doesn't matter if the user does not
* actually link against crtbegin.o; the linker won't look for
* a file to match a wildcard. The wildcard also means that
* it doesn't matter which directory crtbegin.o is in. The
* constructor and destructor list are terminated in
* crtend.o. The same comments apply to it.
*/
. = 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 = .);
_endtext = .;
__data_start_rom = .;
} > rom
.tdata : {
_TLS_Data_begin = .;
*(.tdata .tdata.* .gnu.linkonce.td.*)
_TLS_Data_end = .;
} > rom
.tbss : {
_TLS_BSS_begin = .;
*(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon)
_TLS_BSS_end = .;
} > rom
_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));
.gcc_exc :
AT ( ADDR(.tdata) + SIZEOF( .tdata ) )
{
*(.gcc_exc)
} > ram
.data : AT(__data_start_rom)
{
PROVIDE (_copy_start = .);
*(.data*)
KEEP (*(SORT(.rtemsrwset.*)))
*(.gnu.linkonce.d*)
*(.gcc_except_table*)
*(.jcr)
. = ALIGN (16);
PROVIDE (_edata = .);
PROVIDE (_copy_end = .);
} > ram
.shbss :
{
*(.shbss)
} > ram
.bss :
{
M68Kvec = .;
. += (256 * 4);
_clear_start = .;
*(.dynbss)
*(.bss* .gnu.linkonce.b.*)
*(COMMON)
. = ALIGN (16);
PROVIDE (end = .);
. += _StackSize;
. = ALIGN (16);
_stack_init = .;
_clear_end = .;
} > ram
.rtemsstack (NOLOAD) : {
*(SORT(.rtemsstack.*))
WorkAreaBase = .;
} > ram
.stab . (NOLOAD) :
{
[ .stab ]
}
.stabstr . (NOLOAD) :
{
[ .stabstr ]
}
}
|
