diff options
Diffstat (limited to 'c/src/lib/libbsp/m68k/mcf5235/startup/linkcmdsflash')
-rw-r--r-- | c/src/lib/libbsp/m68k/mcf5235/startup/linkcmdsflash | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/m68k/mcf5235/startup/linkcmdsflash b/c/src/lib/libbsp/m68k/mcf5235/startup/linkcmdsflash new file mode 100644 index 0000000000..41f64665f7 --- /dev/null +++ b/c/src/lib/libbsp/m68k/mcf5235/startup/linkcmdsflash @@ -0,0 +1,180 @@ +/* + * This file contains directives for the GNU linker which are specific + * to the Arcturus uC DIMM ColdFire 5282 + * + * 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.OARcorp.com/rtems/license.html. + * + * $Id$ + */ + +/* + * Declare some sizes. + */ +_RamBase = DEFINED(_RamBase) ? _RamBase : 0x0 ; +_RamSize = DEFINED(_RamSize) ? _RamSize : 16M ; +_HeapSize = DEFINED(_HeapSize) ? _HeapSize : 0 ; + + +/* + * System clock speed + */ +_CPUClockSpeed = DEFINED(_CPUClockSpeed) ? _CPUClockSpeed : 150000000 ; + +/* + * Location of on-chip devices + */ +__IPSBAR = DEFINED(__IPSBAR) ? __IPSBAR : 0x40000000 ; +__SRAMBASE = DEFINED(__SRAMBASE) ? __SRAMBASE : 0x20000000 ; +_VBR = 0x0; + +ENTRY(start) +/* + * NOTE: If loading to flash with dBUG remember to change the origin to 0xFFF00000 because that's where user flash is + * located. + */ +MEMORY +{ + ram : ORIGIN = 0, LENGTH = 16M + sram : ORIGIN = 0x20000000, LENGTH = 64K + flash : ORIGIN = 0xFFE00000, LENGTH = 2M +} + +SECTIONS +{ + + _header_offset = 0; + + /* + * 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) + . = ALIGN(16); + _estuff = .; + PROVIDE (_etext = .); + } >flash + + .data 0x4000 : AT ( ADDR(.text) + SIZEOF ( .text ) ) + { + 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 = . ); + } >ram + + _data_src_start = _estuff; + _data_src_end = _data_dest_start + SIZEOF(.data); + + .bss : { + _clear_start = .; + *(.bss) + *(COMMON) + . = ALIGN (16); + PROVIDE (end = .); + _clear_end = .; + + _WorkspaceBase = .; + } >ram + /* 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 = .); +} |