261 lines
9.8 KiB
Plaintext
261 lines
9.8 KiB
Plaintext
/*
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* The common part of the default linker scripts for standalone executables
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* running on single core Blackfin processors.
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*
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* Copyright (C) 2008 Analog Devices, Inc.
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*
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* The authors hereby grant permission to use, copy, modify, distribute,
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* and license this software and its documentation for any purpose, provided
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* that existing copyright notices are retained in all copies and that this
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* notice is included verbatim in any distributions. No written agreement,
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* license, or royalty fee is required for any of the authorized uses.
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* Modifications to this software may be copyrighted by their authors
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* and need not follow the licensing terms described here, provided that
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* the new terms are clearly indicated on the first page of each file where
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* they apply.
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*/
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/* The default linker script, for single core blackfin standalone executables */
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OUTPUT_FORMAT("elf32-bfin", "elf32-bfin",
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"elf32-bfin")
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OUTPUT_ARCH(bfin)
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ENTRY(__start)
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SECTIONS
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{
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/* Read-only sections, merged into text segment: */
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PROVIDE (__executable_start = 0x0); . = 0x0;
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.interp : { *(.interp) }
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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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.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.sdata : { *(.rel.sdata .rel.sdata.* .rel.gnu.linkonce.s.*) }
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.rela.sdata : { *(.rela.sdata .rela.sdata.* .rela.gnu.linkonce.s.*) }
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.rel.sbss : { *(.rel.sbss .rel.sbss.* .rel.gnu.linkonce.sb.*) }
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.rela.sbss : { *(.rela.sbss .rela.sbss.* .rela.gnu.linkonce.sb.*) }
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.rel.sdata2 : { *(.rel.sdata2 .rel.sdata2.* .rel.gnu.linkonce.s2.*) }
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.rela.sdata2 : { *(.rela.sdata2 .rela.sdata2.* .rela.gnu.linkonce.s2.*) }
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.rel.sbss2 : { *(.rel.sbss2 .rel.sbss2.* .rel.gnu.linkonce.sb2.*) }
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.rela.sbss2 : { *(.rela.sbss2 .rela.sbss2.* .rela.gnu.linkonce.sb2.*) }
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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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.l2 :
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{
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*(.l2 .l2.*)
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} >MEM_L2 =0
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.l2_shared :
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{
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*(.l2_shared .l2_shared.*)
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} >MEM_L2_SHARED =0
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.b.text :
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{
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*(.b.text .b.text.* .b.l1.text .b.l1.text.*)
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} >B_MEM_L1_CODE =0
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.text :
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{
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*(.text .stub .text.* .gnu.linkonce.t.* .l1.text .l1.text.*)
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KEEP (*(.text.*personality*))
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/* .gnu.warning sections are handled specially by elf32.em. */
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*(.gnu.warning)
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} >MEM_L1_CODE =0
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.init :
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{
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KEEP (*(.init))
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} >MEM_L1_CODE =0
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.plt : { *(.plt) } >MEM_L1_CODE
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.fini :
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{
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KEEP (*(.fini))
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} >MEM_L1_CODE =0
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PROVIDE (__etext = .);
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PROVIDE (_etext = .);
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PROVIDE (etext = .);
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.b.rodata : { *(.b.rodata .b.rodata.*) } >B_MEM_L1_DATA_A
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.rodata : { *(.rodata .rodata.* .gnu.linkonce.r.*) } >MEM_L1_DATA_A
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.rodata1 : { *(.rodata1) } >MEM_L1_DATA_A
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.sdata2 :
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{
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*(.sdata2 .sdata2.* .gnu.linkonce.s2.*)
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} >MEM_L1_DATA_A
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.sbss2 : { *(.sbss2 .sbss2.* .gnu.linkonce.sb2.*) } >MEM_L1_DATA_A
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.eh_frame_hdr : { *(.eh_frame_hdr) } >MEM_L1_DATA_A
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.eh_frame : ONLY_IF_RO { KEEP (*(.eh_frame)) } >MEM_L1_DATA_A
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.gcc_except_table : ONLY_IF_RO { *(.gcc_except_table .gcc_except_table.*) } >MEM_L1_DATA_A
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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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. = ALIGN(0x1000) + (. & (0x1000 - 1));
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/* Exception handling */
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.eh_frame : ONLY_IF_RW { KEEP (*(.eh_frame)) } >MEM_L1_DATA_A
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.gcc_except_table : ONLY_IF_RW { *(.gcc_except_table .gcc_except_table.*) } >MEM_L1_DATA_A
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/* Thread Local Storage sections */
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.tdata : { *(.tdata .tdata.* .gnu.linkonce.td.*) } >MEM_L1_DATA_A
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.tbss : { *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon) } >MEM_L1_DATA_A
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.preinit_array :
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{
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PROVIDE_HIDDEN (___preinit_array_start = .);
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KEEP (*(.preinit_array))
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PROVIDE_HIDDEN (___preinit_array_end = .);
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} >MEM_L1_DATA_A
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.init_array :
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{
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PROVIDE_HIDDEN (___init_array_start = .);
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KEEP (*(SORT(.init_array.*)))
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KEEP (*(.init_array))
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PROVIDE_HIDDEN (___init_array_end = .);
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} >MEM_L1_DATA_A
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.fini_array :
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{
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PROVIDE_HIDDEN (___fini_array_start = .);
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KEEP (*(.fini_array))
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KEEP (*(SORT(.fini_array.*)))
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PROVIDE_HIDDEN (___fini_array_end = .);
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} >MEM_L1_DATA_A
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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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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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} >MEM_L1_DATA_A
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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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} >MEM_L1_DATA_A
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.jcr : { KEEP (*(.jcr)) } >MEM_L1_DATA_A
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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.*) } >MEM_L1_DATA_A
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.dynamic : { *(.dynamic) } >MEM_L1_DATA_A
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.b.data :
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{
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*(.b.data .b.data.* .b.l1.data .b.l1.data.*)
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} >B_MEM_L1_DATA_A
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.data :
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{
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*(.data .data.* .gnu.linkonce.d.* .l1.data .l1.data.*)
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KEEP (*(.gnu.linkonce.d.*personality*))
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SORT(CONSTRUCTORS)
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} >MEM_L1_DATA_A
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.data1 : { *(.data1) } >MEM_L1_DATA_A
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.got : { *(.got.plt) *(.got) } >MEM_L1_DATA_A
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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 :
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{
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*(.sdata .sdata.* .gnu.linkonce.s.*)
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} >MEM_L1_DATA_A
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__edata = .; PROVIDE (_edata = .);
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.b.sbss :
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{
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__coreb_bss_start = .;
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} >B_MEM_L1_DATA_A
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.b.bss :
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{
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*(.b.bss .b.bss.*)
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__coreb_bss_end = .;
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} >B_MEM_L1_DATA_A
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.sbss :
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{
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__bss_start = .;
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*(.dynsbss)
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*(.sbss .sbss.* .gnu.linkonce.sb.*)
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*(.scommon)
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} >MEM_L1_DATA_A
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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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/* 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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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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. = ALIGN(. != 0 ? 32 / 8 : 1);
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__bss_end = .;
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} >MEM_L1_DATA_A
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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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/* 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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__stack_end = ORIGIN(MEM_L1_SCRATCH) + LENGTH(MEM_L1_SCRATCH);
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__coreb_stack_end = ORIGIN(B_MEM_L1_SCRATCH) + LENGTH(B_MEM_L1_SCRATCH);
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/DISCARD/ : { *(.note.GNU-stack) }
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}
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