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/*
* This file contains directives for the GNU linker which are specific
* to the Freescale ColdFire mcf52235
*
* COPYRIGHT (c) 1989-1999.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.e
*/
/*
* Declare some sizes.
*/
_CoreSRamBase = DEFINED(RamBase) ? RamBase : 0x80000000;
_CoreSRamSize = DEFINED(RamSize) ? RamSize : 32K;
RamBase = DEFINED(RamBase) ? RamBase : 0x40000000;
RamSize = DEFINED(RamSize) ? RamSize : 32M;
_BootFlashBase = DEFINED(_FlashBase) ? _FlashBase : 0x00000000;
_BootFlashSize = DEFINED(_FlashBase) ? _FlashBase : 2M;
HeapSize = DEFINED(HeapSize) ? HeapSize : 0;
_StackSize = DEFINED(_StackSize) ? _StackSize : 0x400;
_VBR = 0x40000000;
ENTRY(start)
MEMORY
{
core_sram : ORIGIN = 0x80000000, LENGTH = 32K
boot_flash : ORIGIN = 0x00000000, LENGTH = 2M
dram : ORIGIN = 0x40000000, LENGTH = 32M
}
SECTIONS
{
/*
* Text, data and bss segments
*/
.text : {
*(.text*)
*(.ram_code)
/*
* 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*)
*(.gnu.linkonce.r*)
. = ALIGN (16);
*(.console_gdb_xfer)
*(.bootstrap_data)
} > boot_flash
.tdata : {
_TLS_Data_begin = .;
*(.tdata .tdata.* .gnu.linkonce.td.*)
_TLS_Data_end = .;
. = ALIGN(16);
_estuff = .;
PROVIDE (_etext = .);
} > boot_flash
.tbss : {
_TLS_BSS_begin = .;
*(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon)
_TLS_BSS_end = .;
} > boot_flash
_TLS_Data_size = _TLS_Data_end - _TLS_Data_begin;
_TLS_BSS_size = _TLS_BSS_end - _TLS_BSS_begin;
_TLS_Size = _TLS_BSS_end - _TLS_Data_begin;
_TLS_Alignment = ALIGNOF (.tdata);
.data 0x40000500 : AT (_estuff)
{
PROVIDE( _data_dest_start = . );
PROVIDE( _copy_start = .);
*(.data*)
*(.gnu.linkonce.d*)
*(.gcc_except_table*)
*(.jcr)
. = ALIGN (16);
PROVIDE (_edata = .);
PROVIDE (_copy_end = .);
PROVIDE (_data_dest_end = . );
} > dram
_data_src_start = _estuff;
_data_src_end = _data_dest_start + SIZEOF(.data);
.bss :
{
_clear_start = .;
*(.bss*)
*(COMMON)
. = ALIGN (16);
PROVIDE (_end = .);
_clear_end = .;
WorkAreaBase = .;
} > dram
.start_stack :
{
/*
* Starting Stack
*/
. += _StackSize;
. = ALIGN (16);
PROVIDE(_StackInit = .);
} > core_sram
/* 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) }
PROVIDE (end_of_all = .);
}
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