293 lines
8.8 KiB
Plaintext
293 lines
8.8 KiB
Plaintext
/*
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* \brief Linker script for dynamically-linked Genode programs
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* \author Sebastian Sumpf
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* \date 2009-11-05
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*/
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/*
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* Copyright (C) 2009-2013 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU General Public License version 2.
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*/
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/*
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* Program doesn't need to startup with CRT0 as LDSO has done this
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* initialization during its own CRT0 already.
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*/
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ENTRY(main)
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PHDRS
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{
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phdr PT_PHDR PHDRS;
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interp PT_INTERP;
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ro PT_LOAD;
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rw PT_LOAD;
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dynamic PT_DYNAMIC;
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eh_frame PT_GNU_EH_FRAME;
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}
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SECTIONS
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{
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/* Read-only sections, merged into text segment: */
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.text :
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{
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_prog_img_beg = .;
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*(.text .stub .text.* .gnu.linkonce.t.*)
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/* .gnu.warning sections are handled specially by elf32.em. */
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*(.gnu.warning)
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} : ro =0x90909090
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.interp : { *(.interp) } : interp : ro
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.note.gnu.build-id : { *(.note.gnu.build-id) }
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.hash : { *(.hash) }
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.gnu.hash : { *(.gnu.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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.rel.init : { *(.rel.init) }
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.rela.init : { *(.rela.init) }
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.rel.text : { *(.rel.text .rel.text.* .rel.gnu.linkonce.t.*) }
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.rela.text : { *(.rela.text .rela.text.* .rela.gnu.linkonce.t.*) }
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.rel.fini : { *(.rel.fini) }
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.rela.fini : { *(.rela.fini) }
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.rel.rodata : { *(.rel.rodata .rel.rodata.* .rel.gnu.linkonce.r.*) }
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.rela.rodata : { *(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*) }
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.rel.data.rel.ro : { *(.rel.data.rel.ro* .rel.gnu.linkonce.d.rel.ro.*) }
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.rela.data.rel.ro : { *(.rela.data.rel.ro* .rela.gnu.linkonce.d.rel.ro.*) }
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.rel.data : { *(.rel.data .rel.data.* .rel.gnu.linkonce.d.*) }
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.rela.data : { *(.rela.data .rela.data.* .rela.gnu.linkonce.d.*) }
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.rel.tdata : { *(.rel.tdata .rel.tdata.* .rel.gnu.linkonce.td.*) }
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.rela.tdata : { *(.rela.tdata .rela.tdata.* .rela.gnu.linkonce.td.*) }
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.rel.tbss : { *(.rel.tbss .rel.tbss.* .rel.gnu.linkonce.tb.*) }
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.rela.tbss : { *(.rela.tbss .rela.tbss.* .rela.gnu.linkonce.tb.*) }
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.rel.ctors : { *(.rel.ctors) }
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.rela.ctors : { *(.rela.ctors) }
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.rel.dtors : { *(.rel.dtors) }
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.rela.dtors : { *(.rela.dtors) }
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.rel.got : { *(.rel.got) }
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.rela.got : { *(.rela.got) }
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.rel.bss : { *(.rel.bss .rel.bss.* .rel.gnu.linkonce.b.*) }
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.rela.bss : { *(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*) }
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.rel.plt : { *(.rel.plt) }
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.rela.plt : { *(.rela.plt) }
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.init :
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{
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KEEP (*(.init))
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} =0x90909090
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.plt : { *(.plt) }
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.fini :
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{
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KEEP (*(.fini))
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} =0x90909090
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PROVIDE (__etext = .);
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PROVIDE (_etext = .);
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PROVIDE (etext = .);
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.rodata : { *(.rodata .rodata.* .gnu.linkonce.r.*) }
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.rodata1 : { *(.rodata1) }
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.eh_frame_hdr : { *(.eh_frame_hdr) } : eh_frame : ro
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/*
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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.
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*/
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. = ALIGN(0x1000);
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.root_cap : {
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/*
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* Leave space for parent capability parameters at start of data
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* section. The protection-domain creator is reponsible for storing
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* sane values here.
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*/
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_parent_cap = .;
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LONG(0xffffffff);
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LONG(0xffffffff);
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LONG(0xffffffff);
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LONG(0xffffffff);
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LONG(0xffffffff);
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LONG(0xffffffff);
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LONG(0xffffffff);
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LONG(0xffffffff);
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} : rw
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/* Exception handling */
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.eh_frame :
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{
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__eh_frame_start__ = .;
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KEEP (*(.eh_frame))
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LONG(0);
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} : rw
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.gcc_except_table : { *(.gcc_except_table .gcc_except_table.*) }
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/* .ARM.exidx is sorted, so has to go in its own output section */
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.ARM.extab : {
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*(.ARM.extab*)
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}
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__exidx_start = .;
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.ARM.exidx : {
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*(.ARM.exidx* .gnu.linkonce.armexidx.*)
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}
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__exidx_end = .;
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/* Thread Local Storage sections */
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.tdata : { *(.tdata .tdata.* .gnu.linkonce.td.*) }
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.tbss : { *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon) }
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/* Take out for now because these sections cause warnings on ARM. If this
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* should lead to an error then we'll take it back in.
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.preinit_array :
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{
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__preinit_array_start = .;
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KEEP (*(.preinit_array))
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__preinit_array_end = .;
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}
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.init_array :
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{
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__init_array_start = .;
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KEEP (*(SORT(.init_array.*)))
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KEEP (*(.init_array))
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__init_array_end = .;
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}
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.fini_array :
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{
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__fini_array_start = .;
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KEEP (*(.fini_array))
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KEEP (*(SORT(.fini_array.*)))
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__fini_array_end = .;
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} */
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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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KEEP (*crtbegin?.o(.ctors))
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/* We don't want to include the .ctor section from
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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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_ctors_start = .;
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KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .ctors))
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KEEP (*(SORT(.ctors.*)))
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KEEP (*(.ctors))
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KEEP (*(SORT(.init_array.*)))
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KEEP (*(.init_array))
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_ctors_end = .;
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}
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.dtors :
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{
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KEEP (*crtbegin.o(.dtors))
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KEEP (*crtbegin?.o(.dtors))
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_dtors_start = .;
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KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .dtors))
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KEEP (*(SORT(.dtors.*)))
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KEEP (*(.dtors))
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KEEP (*(.fini_array))
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KEEP (*(SORT(.fini_array.*)))
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_dtors_end = .;
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}
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.jcr : { KEEP (*(.jcr)) }
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.data.rel.ro : { *(.data.rel.ro.local* .gnu.linkonce.d.rel.ro.local.*) *(.data.rel.ro* .gnu.linkonce.d.rel.ro.*) }
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.dynamic : { *(.dynamic) } : rw : dynamic
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/* merge .got.plt and .got into .got, since the ARM toolchain for OKL4
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* set's * DT_PLTGOT to .got instead of .got.plt */
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.got : { *(.got.plt) *(.got) }
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_prog_img_data = .;
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.data :
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{
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/*
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* Platform-specific entry for Fiasco.OC.
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*
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* PIC-code compiled for Fiasco.OC, needs some PIC-compatible
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* way to enter the kernel, the fixed address of the kernel
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* entry code address needs to be found here.
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*/
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__l4sys_invoke_indirect = .;
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LONG(0xeacff000);
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*(.data .data.* .gnu.linkonce.d.*)
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SORT(CONSTRUCTORS)
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__dso_handle = .;
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LONG(0x0);
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}
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.data1 : { *(.data1) }
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_edata = .; PROVIDE (edata = .);
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__bss_start = .;
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.bss :
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{
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*(.dynbss)
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*(.bss .bss.* .gnu.linkonce.b.*)
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*(COMMON)
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/*
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* Align here to ensure that the .bss section occupies space up to
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* _end. Align after .bss to ensure correct alignment even if the
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* .bss section disappears because there are no input sections.
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*
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* FIXME: Why do we need it? When there is no .bss section, we don't
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* pad the .data section.
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*/
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. = ALIGN(. != 0 ? 32 / 8 : 1);
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}
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. = ALIGN(32 / 8);
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. = ALIGN(32 / 8);
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_end = .; PROVIDE (end = .);
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/* end of program image -- must be after last section */
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_prog_img_end = .;
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/* Stabs debugging sections. */
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.stab 0 : { *(.stab) }
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.stabstr 0 : { *(.stabstr) }
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.stab.excl 0 : { *(.stab.excl) }
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.stab.exclstr 0 : { *(.stab.exclstr) }
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.stab.index 0 : { *(.stab.index) }
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.stab.indexstr 0 : { *(.stab.indexstr) }
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.comment 0 : { *(.comment) }
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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 .gnu.linkonce.wi.*) }
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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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/* DWARF 3 */
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.debug_pubtypes 0 : { *(.debug_pubtypes) }
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.debug_ranges 0 : { *(.debug_ranges) }
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.gnu.attributes 0 : { KEEP (*(.gnu.attributes)) }
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/DISCARD/ : { *(.note.GNU-stack) *(.gnu_debuglink) }
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}
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