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/*
* This file contains directives for the GNU linker which are specific to the
* Virtex 4 PPC 405. No assumptions are made on the firmware in the FPGA.
* This file is intended to be used together with start.S to generate
* downloadable code.
*/
OUTPUT_FORMAT("elf32-powerpc", "elf32-powerpc", "elf32-powerpc")
OUTPUT_ARCH(powerpc)
STARTUP(start.o)
ENTRY(download_entry)
EXTERN(download_entry)
EXTERN(__vectors)
MsgAreaSize = DEFINED(MsgAreaSize) ? MsgAreaSize : 1M;
RamBase = DEFINED(RamBase) ? RamBase : 0x0;
RamSize = DEFINED(RamSize) ? RamSize : 128M - MsgAreaSize;
RamEnd = RamBase + RamSize;
HeapSize = DEFINED(HeapSize) ? HeapSize : 0; /* 0=Use def */
MEMORY
{
VECTORS : ORIGIN = 0x00000000, LENGTH = 12K
RAM : ORIGIN = 0x00003000, LENGTH = 128M - 12K
}
SECTIONS
{
bsp_exc_vector_base = 0x100;
__exeentry = download_entry;
__exestart = bsp_exc_vector_base;
.vectors bsp_exc_vector_base : { *(.vectors) } > VECTORS
/* Read-only sections, merged into text segment: */
.interp : { *(.interp) } > RAM
.hash : { *(.hash) } > RAM
.dynsym : { *(.dynsym) } > RAM
.dynstr : { *(.dynstr) } > RAM
.gnu.version : { *(.gnu.version) } > RAM
.gnu.version_d : { *(.gnu.version_d) } > RAM
.gnu.version_r : { *(.gnu.version_r) } > RAM
.rela.text : { *(.rela.text) *(.rela.gnu.linkonce.t*) } > RAM
.rela.data : { *(.rela.data) *(.rela.gnu.linkonce.d*) } > RAM
.rela.rodata : { *(.rela.rodata*) *(.rela.gnu.linkonce.r*) } > RAM
.rela.got : { *(.rela.got) } > RAM
.rela.got1 : { *(.rela.got1) } > RAM
.rela.got2 : { *(.rela.got2) } > RAM
.rela.ctors : { *(.rela.ctors) } > RAM
.rela.dtors : { *(.rela.dtors) } > RAM
.rela.init : { *(.rela.init) } > RAM
.rela.fini : { *(.rela.fini) } > RAM
.rela.bss : { *(.rela.bss) } > RAM
.rela.plt : { *(.rela.plt) } > RAM
.rela.sdata : { *(.rela.sdata) } > RAM
.rela.sbss : { *(.rela.sbss) } > RAM
.rela.sdata2 : { *(.rela.sdata2) } > RAM
.rela.sbss2 : { *(.rela.sbss2) } > RAM
.rela.dyn : { *(.rela.dyn) } > RAM
/* Initialization code */
.init : { PROVIDE (_init = .);
*ecrti.o(.init)
KEEP(*(.init))
*ecrtn.o(.init)
} > RAM
.text : { *(.entry)
*(.text)
*(.text.*)
/* Special FreeBSD sysctl sections */
. = ALIGN (16);
__start_set_sysctl_set = .;
*(set_sysctl_*);
__stop_set_sysctl_set = ABSOLUTE(.);
*(set_domain_*);
*(set_pseudo_*);
/* .gnu.warning sections are handled specially by elf32.em
*/
*(.gnu.warning)
*(.gnu.linkonce.t*)
} > RAM
/* Finalization code */
.fini : { PROVIDE (_fini = .);
*ecrti.o(.fini)
KEEP(*(.fini))
*ecrtn.o(.fini)
} > RAM
/* Miscellaneous read-only data */
.rodata : { *(.rodata.* .gnu.linkonce.r*) KEEP (*(SORT(.rtemsroset.*))) } > RAM
.rodata1 : { *(.rodata1) } > 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));
/* Initialised small data addressed as offsets from r2 */
.sdata2 : { PROVIDE (_SDA2_BASE_ = 32768); *(.sdata2 .sdata2.* .gnu.linkonce.s2.*) } > RAM
/* Zeroed small data addressed as offsets from r2 */
.sbss2 : { *(.sbss2 .sbss2.* .gnu.linkonce.sb2.*)
/* Avoid empty sdata2/sbss2 area: __eabi would not set up
* r2 which may be important if run-time loading is used
*/
. += 1;
PROVIDE (__SBSS2_END__ = .);
} > RAM
/* Exception frame info */
.eh_frame : { *(.eh_frame .eh_frame.*) } > RAM
.eh_frame_hdr : { *(.eh_frame_hdr) } > RAM
/* Declares where the .text section ends */
_etext = .;
PROVIDE (etext = .);
/* Initialized R/W Data section goes in RAM */
.data : { PROVIDE(__DATA_START__ = ABSOLUTE(.) );
*(.data)
*(.data.*)
KEEP (*(SORT(.rtemsrwset.*)))
*(.gnu.linkonce.d*)
} > RAM
.data1 : { *(.data1) } > RAM
PROVIDE (__EXCEPT_START__ = .);
.gcc_except_table : { *(.gcc_except_table .gcc_except_table.*) } > RAM
PROVIDE (__EXCEPT_END__ = .);
.got1 : { *(.got1) } > RAM
/* Put .ctors and .dtors next to the .got2 section, so that the pointers
* get relocated with -mrelocatable. Also put in the .fixup pointers.
* The current compiler no longer needs this, but keep it around for 2.7.2.
*/
PROVIDE (_GOT2_START_ = .);
.got2 : { *(.got2) } > RAM
.dynamic : { *(.dynamic) } > RAM
.ctors : {
KEEP (*ecrti.o(.ctors))
KEEP (*crtbegin.o(.ctors))
KEEP (*crtbegin?.o(.ctors))
KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o *ecrtn.o) .ctors))
KEEP (*(SORT(.ctors.*)))
KEEP (*(.ctors))
} > RAM
.dtors : {
KEEP (*ecrti.o(.dtors))
KEEP (*crtbegin.o(.dtors))
KEEP (*crtbegin?.o(.dtors))
KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o *ecrtn.o) .dtors))
KEEP (*(SORT(.dtors.*)))
KEEP (*(.dtors))
} > RAM
PROVIDE (_FIXUP_START_ = .);
.fixup : { *(.fixup) } > RAM
PROVIDE (_FIXUP_END_ = .);
PROVIDE (_GOT2_END_ = .);
PROVIDE (_GOT_START_ = .);
.got : { __got_start = .;
*(.got)
} > RAM
.got.plt : { *(.got.plt) } > RAM
PROVIDE (_GOT_END_ = .);
.jcr : { KEEP (*(.jcr)) } > RAM
/* We want the small data sections together, so single-instruction offsets
* can access them all, and initialized data all before uninitialized, so
* we can shorten the on-disk segment size.
*/
/* Initialised small data addressed as offsets from r13 */
.sdata : {
bsp_section_sdata_begin = .;
PROVIDE (_SDA_BASE_ = 32768); *(.sdata* .gnu.linkonce.s.*);
bsp_section_sdata_end = .;
} > RAM
_edata = .;
PROVIDE (edata = .);
/* Zeroed small data addressed as offsets from r13 */
.sbss : { PROVIDE (__sbss_start = .);
bsp_section_sbss_begin = .;
*(.dynsbss)
*(.sbss*)
*(.gnu.linkonce.sb.*)
*(.scommon)
/* Avoid empty sdata/sbss area: __eabi would not set up
* r13, which may be important if run-time loading is used
*/
. += 1;
PROVIDE (__SBSS_END__ = .);
PROVIDE (__sbss_end = .);
bsp_section_sbss_end = .;
bsp_section_sdata_libdl_begin = .;
. = DEFINED(bsp_section_small_data_area_size) ?
bsp_section_sdata_begin + bsp_section_small_data_area_size : .;
bsp_section_sdata_libdl_end = .;
} > RAM
.plt : { *(.plt) } > RAM
.iplt : { *(.iplt) } > RAM
/* Zeroed large data */
.bss : { PROVIDE (__bss_start = .);
*(.dynbss)
*(.bss)
*(.bss.*)
*(.gnu.linkonce.b*)
*(COMMON)
PROVIDE (__bss_end = ALIGN(4));
__bss_size = __bss_end - __bss_start;
} > RAM
__exeend = ALIGN(4);
__rtems_end = .;
. = ALIGN(0x10); /* Align to a cache-line boundary */
PROVIDE(__bsp_ram_start = .);
.rtemsstack (NOLOAD) : {
*(SORT(.rtemsstack.*))
} >RAM
WorkAreaBase = .;
/* The heap comes after the work space */
. = RamBase + RamSize;
PROVIDE(__bsp_ram_end = .);
/* Message area for capturing early printk output */
/* Placed here to be easily findable with a debugger */
MsgAreaBase = .;
. += MsgAreaSize;
__phy_ram_end = .; /* True end of physical memory */
/DISCARD/ :
{
*(.comment)
}
/* Some configuration constants: Not clear why they're placed here */
__dccr = 0x80000000;
__iccr = 0x80000000;
__sgr = 0x7fffffff;
__vectors = 0;
}
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