303 lines
9.1 KiB
Plaintext
303 lines
9.1 KiB
Plaintext
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/* Default linker script for PowerPC 440, for normal executables
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Copyright (c) 2008, 2009 Xilinx, Inc. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are
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met:
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1. Redistributions source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3. Neither the name of Xilinx nor the names of its contributors may be
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used to endorse or promote products derived from this software without
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specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS "AS
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IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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OUTPUT_FORMAT("elf32-powerpc", "elf32-powerpc",
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"elf32-powerpc")
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OUTPUT_ARCH(powerpc:common)
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ENTRY(_boot)
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_START_ADDR = DEFINED(_START_ADDR) ? _START_ADDR : 0xFFFF0000;
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_STACK_SIZE = DEFINED(_STACK_SIZE) ? _STACK_SIZE : 4k;
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_HEAP_SIZE = DEFINED(_HEAP_SIZE) ? _HEAP_SIZE : 4k;
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STARTUP(boot.o)
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/* Do we need any of these for elf?
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__DYNAMIC = 0; */
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PROVIDE (__stack = 0); PROVIDE (___stack = 0);
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SECTIONS
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{
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. = _START_ADDR;
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/* Read-only sections, merged into text segment: */
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.hash : { *(.hash) }
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.dynsym : { *(.dynsym) }
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.dynstr : { *(.dynstr) }
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.gnu.version : { *(.gnu.version) }
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.gnu.version_d : { *(.gnu.version_d) }
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.gnu.version_r : { *(.gnu.version_r) }
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.rela.text :
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{
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*(.rela.text)
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*(.rela.text.*)
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*(.rela.gnu.linkonce.t*)
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}
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.rela.data :
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{
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*(.rela.data)
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*(.rela.data.*)
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*(.rela.gnu.linkonce.d*)
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}
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.rela.rodata :
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{
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*(.rela.rodata)
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*(.rela.rodata.*)
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*(.rela.gnu.linkonce.r*)
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}
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.rela.got : { *(.rela.got) }
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.rela.got1 : { *(.rela.got1) }
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.rela.got2 : { *(.rela.got2) }
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.rela.ctors : { *(.rela.ctors) }
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.rela.dtors : { *(.rela.dtors) }
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.rela.init : { *(.rela.init) }
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.rela.fini : { *(.rela.fini) }
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.rela.bss : { *(.rela.bss) }
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.rela.plt : { *(.rela.plt) }
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.rela.sdata : { *(.rela.sdata) }
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.rela.sbss : { *(.rela.sbss) }
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.rela.sdata2 : { *(.rela.sdata2) }
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.rela.sbss2 : { *(.rela.sbss2) }
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.text :
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{
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*(.text)
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*(.text.*)
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*(.vectors)
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/* .gnu.warning sections are handled specially by elf32.em. */
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*(.gnu.warning)
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*(.gnu.linkonce.t.*)
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} =0
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.init : { KEEP (*(.init)) } =0
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.fini : { KEEP (*(.fini)) } =0
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.rodata :
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{
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*(.rodata)
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*(.rodata.*)
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*(.gnu.linkonce.r.*)
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}
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.rodata1 : { *(.rodata1) }
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_etext = .;
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PROVIDE (etext = .);
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PROVIDE (__etext = .);
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.sdata2 : { *(.sdata2) *(.sdata2.*) *(.gnu.linkonce.s2.*)}
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__SDATA2_START__ = ADDR(.sdata2);
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__SDATA2_END__ = ADDR(.sdata2) + SIZEOF(.sdata2);
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.sbss2 : { *(.sbss2) *(.gnu.linkonce.sb2.*)}
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__SBSS2_START__ = ADDR(.sbss2);
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__SBSS2_END__ = ADDR(.sbss2) + SIZEOF(.sbss2);
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/* Adjust the address for the data segment. We want to adjust up to
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the same address within the page on the next page up. It would
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be more correct to do this:
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. = ALIGN(0x08) + (ALIGN(8) & (0x08 - 1));
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The current expression does not correctly handle the case of a
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text segment ending precisely at the end of a page; it causes the
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data segment to skip a page. The above expression does not have
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this problem, but it will currently (2/95) cause BFD to allocate
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a single segment, combining both text and data, for this case.
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This will prevent the text segment from being shared among
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multiple executions of the program; I think that is more
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important than losing a page of the virtual address space (note
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that no actual memory is lost; the page which is skipped can not
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be referenced). */
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/* . = ALIGN(8) + 0x08;*/
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.data :
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{
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*(.data)
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*(.data.*)
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*(.gnu.linkonce.d*)
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CONSTRUCTORS
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}
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.data1 : { *(.data1) }
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.got1 : { *(.got1) }
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.dynamic : { *(.dynamic) }
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/* Put .ctors and .dtors next to the .got2 section, so that the pointers
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get relocated with -mrelocatable. Also put in the .fixup pointers.
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The current compiler no longer needs this, but keep it around for 2.7.2 */
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PROVIDE (_GOT2_START_ = .);
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PROVIDE (__GOT2_START_ = .);
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.got2 : { *(.got2) }
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PROVIDE (__CTOR_LIST__ = .);
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PROVIDE (___CTOR_LIST__ = .);
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.ctors :
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{
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/* gcc uses crtbegin.o to find the start of
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the constructors, so we make sure it is
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first. Because this is a wildcard, it
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doesn't matter if the user does not
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actually link against crtbegin.o; the
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linker won't look for a file to match a
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wildcard. The wildcard also means that it
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doesn't matter which directory crtbegin.o
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is in. */
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KEEP (*crtbegin.o(.ctors))
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/* We don't want to include the .ctor section from
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from the crtend.o file until after the sorted ctors.
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The .ctor section from the crtend file contains the
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end of ctors marker and it must be last */
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KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))
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KEEP (*(SORT(.ctors.*)))
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KEEP (*(.ctors))
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}
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PROVIDE (__CTOR_END__ = .);
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PROVIDE (___CTOR_END__ = .);
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PROVIDE (__DTOR_LIST__ = .);
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PROVIDE (___DTOR_LIST__ = .);
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.dtors :
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{
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KEEP (*crtbegin.o(.dtors))
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KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
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KEEP (*(SORT(.dtors.*)))
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KEEP (*(.dtors))
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}
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PROVIDE (__DTOR_END__ = .);
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PROVIDE (___DTOR_END__ = .);
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PROVIDE (_FIXUP_START_ = .);
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PROVIDE (__FIXUP_START_ = .);
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.fixup : { *(.fixup) }
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PROVIDE (_FIXUP_END_ = .);
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PROVIDE (__FIXUP_END_ = .);
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PROVIDE (_GOT2_END_ = .);
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PROVIDE (__GOT2_END_ = .);
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PROVIDE (_GOT_START_ = .);
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PROVIDE (__GOT_START_ = .);
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.got : { *(.got) }
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.got.plt : { *(.got.plt) }
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PROVIDE (_GOT_END_ = .);
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PROVIDE (__GOT_END_ = .);
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/* Added by Sathya to handle C++ exceptions */
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.eh_frame : {
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*(.eh_frame)
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}
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.jcr : {
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*(.jcr)
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}
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.gcc_except_table : {
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*(.gcc_except_table)
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}
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/* We want the small data sections together, so single-instruction offsets
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can access them all, and initialized data all before uninitialized, so
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we can shorten the on-disk segment size. */
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.sdata : { *(.sdata) *(.sdata.*) *(.gnu.linkonce.s.*)}
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__SDATA_START__ = ADDR(.sdata);
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__SDATA_END__ = ADDR(.sdata) + SIZEOF(.sdata);
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_edata = .;
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PROVIDE (edata = .);
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PROVIDE (__edata = .);
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.sbss :
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{
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__sbss_start = .;
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___sbss_start = .;
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*(.sbss)
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*(.sbss.*)
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*(.gnu.linkonce.sb.*)
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*(.scommon)
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*(.dynsbss)
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__sbss_end = .;
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___sbss_end = .;
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}
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.plt : { *(.plt) }
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.bss :
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{
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__bss_start = .;
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___bss_start = .;
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*(.dynbss)
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*(.bss)
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*(.bss.*)
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*(.gnu.linkonce.b.*)
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*(COMMON)
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. = ALIGN(4);
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__bss_end = .;
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}
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.stack :
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{
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_stack_end = .;
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. = . + _STACK_SIZE;
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. = ALIGN(16);
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__stack = .;
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}
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.heap :
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{
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_heap_start = .;
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. = . + _HEAP_SIZE;
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. = ALIGN(16);
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_heap_end = .;
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}
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.tdata : {
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*(.tdata)
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*(.tdata.*)
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*(.gnu.linkonce.td.*)
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}
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.tbss : {
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*(.tbss)
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*(.gnu.linkonce.tb.*)
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}
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_end = . ;
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end = .;
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__end = .;
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.boot0 0xFFFFFF00 : { *(.boot0)}
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.boot 0xFFFFFFFC : { *(.boot) }
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/* These are needed for ELF backends which have not yet been
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converted to the new style linker. */
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.stab 0 : { *(.stab) }
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.stabstr 0 : { *(.stabstr) }
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/* DWARF debug sections.
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Symbols in the DWARF debugging sections are relative to the beginning
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of the section so we begin them at 0. */
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/* DWARF 1 */
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.debug 0 : { *(.debug) }
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.line 0 : { *(.line) }
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/* GNU DWARF 1 extensions */
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.debug_srcinfo 0 : { *(.debug_srcinfo) }
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.debug_sfnames 0 : { *(.debug_sfnames) }
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/* DWARF 1.1 and DWARF 2 */
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.debug_aranges 0 : { *(.debug_aranges) }
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.debug_pubnames 0 : { *(.debug_pubnames) }
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/* DWARF 2 */
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.debug_info 0 : { *(.debug_info) }
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.debug_abbrev 0 : { *(.debug_abbrev) }
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.debug_line 0 : { *(.debug_line) }
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.debug_frame 0 : { *(.debug_frame) }
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.debug_str 0 : { *(.debug_str) }
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.debug_loc 0 : { *(.debug_loc) }
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.debug_macinfo 0 : { *(.debug_macinfo) }
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/* SGI/MIPS DWARF 2 extensions */
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.debug_weaknames 0 : { *(.debug_weaknames) }
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.debug_funcnames 0 : { *(.debug_funcnames) }
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.debug_typenames 0 : { *(.debug_typenames) }
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.debug_varnames 0 : { *(.debug_varnames) }
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/* These must appear regardless of . */
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}
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