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khays |
# This shell script emits a C file. -*- C -*-
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2 |
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# It does some substitutions.
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3 |
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# This file is now misnamed, because it supports both 32 bit and 64 bit
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4 |
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# ELF emulations.
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5 |
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test -z "${ELFSIZE}" && ELFSIZE=32
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6 |
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if [ -z "$MACHINE" ]; then
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7 |
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OUTPUT_ARCH=${ARCH}
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else
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9 |
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OUTPUT_ARCH=${ARCH}:${MACHINE}
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fi
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fragment <
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/* This file is is generated by a shell script. DO NOT EDIT! */
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/* ${ELFSIZE} bit ELF emulation code for ${EMULATION_NAME}
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Copyright 1991, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
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2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
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Free Software Foundation, Inc.
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Written by Steve Chamberlain
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ELF support by Ian Lance Taylor
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This file is part of the GNU Binutils.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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32 |
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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35 |
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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37 |
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#define TARGET_IS_${EMULATION_NAME}
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#include "sysdep.h"
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41 |
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#include "bfd.h"
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#include "libiberty.h"
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43 |
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#include "filenames.h"
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#include "safe-ctype.h"
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45 |
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#include "getopt.h"
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46 |
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#include "md5.h"
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47 |
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#include "sha1.h"
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48 |
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#include
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49 |
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50 |
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#include "bfdlink.h"
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51 |
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52 |
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#include "ld.h"
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53 |
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#include "ldmain.h"
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54 |
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#include "ldmisc.h"
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55 |
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#include "ldexp.h"
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56 |
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#include "ldlang.h"
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57 |
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#include "ldfile.h"
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58 |
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#include "ldemul.h"
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59 |
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#include
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60 |
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#include "elf/common.h"
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#include "elf-bfd.h"
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62 |
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#include "filenames.h"
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63 |
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64 |
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/* Declare functions used by various EXTRA_EM_FILEs. */
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65 |
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static void gld${EMULATION_NAME}_before_parse (void);
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static void gld${EMULATION_NAME}_after_open (void);
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static void gld${EMULATION_NAME}_before_allocation (void);
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68 |
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static void gld${EMULATION_NAME}_after_allocation (void);
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69 |
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static lang_output_section_statement_type *gld${EMULATION_NAME}_place_orphan
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70 |
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(asection *, const char *, int);
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71 |
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EOF
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72 |
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73 |
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if [ "x${USE_LIBPATH}" = xyes ] ; then
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74 |
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case ${target} in
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75 |
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*-*-linux-* | *-*-k*bsd*-*)
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76 |
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fragment <
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77 |
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#ifdef HAVE_GLOB
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#include
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79 |
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#endif
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80 |
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EOF
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;;
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82 |
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esac
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83 |
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fi
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84 |
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85 |
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# Import any needed special functions and/or overrides.
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86 |
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#
|
87 |
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source_em ${srcdir}/emultempl/elf-generic.em
|
88 |
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if test -n "$EXTRA_EM_FILE" ; then
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89 |
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source_em ${srcdir}/emultempl/${EXTRA_EM_FILE}.em
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90 |
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fi
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91 |
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92 |
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# Functions in this file can be overridden by setting the LDEMUL_* shell
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93 |
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# variables. If the name of the overriding function is the same as is
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94 |
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# defined in this file, then don't output this file's version.
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95 |
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# If a different overriding name is given then output the standard function
|
96 |
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# as presumably it is called from the overriding function.
|
97 |
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#
|
98 |
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if test x"$LDEMUL_BEFORE_PARSE" != xgld"$EMULATION_NAME"_before_parse; then
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99 |
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fragment <
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100 |
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101 |
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static void
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102 |
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gld${EMULATION_NAME}_before_parse (void)
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103 |
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{
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104 |
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ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);
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105 |
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config.dynamic_link = ${DYNAMIC_LINK-TRUE};
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106 |
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config.has_shared = `if test -n "$GENERATE_SHLIB_SCRIPT" ; then echo TRUE ; else echo FALSE ; fi`;
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107 |
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}
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108 |
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|
109 |
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EOF
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110 |
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fi
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111 |
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112 |
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if test x"$LDEMUL_RECOGNIZED_FILE" != xgld"${EMULATION_NAME}"_load_symbols; then
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113 |
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fragment <
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114 |
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/* Handle the generation of DT_NEEDED tags. */
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115 |
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116 |
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static bfd_boolean
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117 |
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gld${EMULATION_NAME}_load_symbols (lang_input_statement_type *entry)
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118 |
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{
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119 |
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int link_class = 0;
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120 |
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121 |
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/* Tell the ELF linker that we don't want the output file to have a
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122 |
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DT_NEEDED entry for this file, unless it is used to resolve
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123 |
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references in a regular object. */
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124 |
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if (entry->add_DT_NEEDED_for_regular)
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125 |
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link_class = DYN_AS_NEEDED;
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126 |
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127 |
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/* Tell the ELF linker that we don't want the output file to have a
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128 |
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DT_NEEDED entry for any dynamic library in DT_NEEDED tags from
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129 |
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this file at all. */
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130 |
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if (!entry->add_DT_NEEDED_for_dynamic)
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131 |
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link_class |= DYN_NO_ADD_NEEDED;
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132 |
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133 |
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if (entry->just_syms_flag
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134 |
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&& (bfd_get_file_flags (entry->the_bfd) & DYNAMIC) != 0)
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135 |
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einfo (_("%P%F: --just-symbols may not be used on DSO: %B\n"),
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136 |
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entry->the_bfd);
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137 |
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138 |
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if (link_class == 0
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139 |
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|| (bfd_get_file_flags (entry->the_bfd) & DYNAMIC) == 0)
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140 |
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return FALSE;
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141 |
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142 |
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bfd_elf_set_dyn_lib_class (entry->the_bfd,
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143 |
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(enum dynamic_lib_link_class) link_class);
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144 |
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145 |
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/* Continue on with normal load_symbols processing. */
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146 |
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return FALSE;
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147 |
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}
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148 |
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EOF
|
149 |
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fi
|
150 |
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151 |
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fragment <
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152 |
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153 |
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/* These variables are required to pass information back and forth
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154 |
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between after_open and check_needed and stat_needed and vercheck. */
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155 |
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156 |
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static struct bfd_link_needed_list *global_needed;
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157 |
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static struct stat global_stat;
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158 |
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static lang_input_statement_type *global_found;
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159 |
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static struct bfd_link_needed_list *global_vercheck_needed;
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160 |
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static bfd_boolean global_vercheck_failed;
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161 |
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162 |
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/* These variables are used to implement target options */
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163 |
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164 |
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static char *audit; /* colon (typically) separated list of libs */
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165 |
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static char *depaudit; /* colon (typically) separated list of libs */
|
166 |
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|
167 |
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/* On Linux, it's possible to have different versions of the same
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168 |
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shared library linked against different versions of libc. The
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169 |
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dynamic linker somehow tags which libc version to use in
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170 |
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/etc/ld.so.cache, and, based on the libc that it sees in the
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171 |
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executable, chooses which version of the shared library to use.
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172 |
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173 |
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We try to do a similar check here by checking whether this shared
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174 |
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library needs any other shared libraries which may conflict with
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175 |
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libraries we have already included in the link. If it does, we
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176 |
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skip it, and try to find another shared library farther on down the
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177 |
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link path.
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178 |
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179 |
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This is called via lang_for_each_input_file.
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180 |
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GLOBAL_VERCHECK_NEEDED is the list of objects needed by the object
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181 |
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which we are checking. This sets GLOBAL_VERCHECK_FAILED if we find
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182 |
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a conflicting version. */
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183 |
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|
184 |
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static void
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185 |
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gld${EMULATION_NAME}_vercheck (lang_input_statement_type *s)
|
186 |
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{
|
187 |
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const char *soname;
|
188 |
|
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struct bfd_link_needed_list *l;
|
189 |
|
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|
190 |
|
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if (global_vercheck_failed)
|
191 |
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return;
|
192 |
|
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if (s->the_bfd == NULL
|
193 |
|
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|| (bfd_get_file_flags (s->the_bfd) & DYNAMIC) == 0)
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194 |
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return;
|
195 |
|
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|
196 |
|
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soname = bfd_elf_get_dt_soname (s->the_bfd);
|
197 |
|
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if (soname == NULL)
|
198 |
|
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soname = lbasename (bfd_get_filename (s->the_bfd));
|
199 |
|
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|
200 |
|
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for (l = global_vercheck_needed; l != NULL; l = l->next)
|
201 |
|
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{
|
202 |
|
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const char *suffix;
|
203 |
|
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|
204 |
|
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if (filename_cmp (soname, l->name) == 0)
|
205 |
|
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{
|
206 |
|
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/* Probably can't happen, but it's an easy check. */
|
207 |
|
|
continue;
|
208 |
|
|
}
|
209 |
|
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|
210 |
|
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if (strchr (l->name, '/') != NULL)
|
211 |
|
|
continue;
|
212 |
|
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|
213 |
|
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suffix = strstr (l->name, ".so.");
|
214 |
|
|
if (suffix == NULL)
|
215 |
|
|
continue;
|
216 |
|
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|
217 |
|
|
suffix += sizeof ".so." - 1;
|
218 |
|
|
|
219 |
|
|
if (filename_ncmp (soname, l->name, suffix - l->name) == 0)
|
220 |
|
|
{
|
221 |
|
|
/* Here we know that S is a dynamic object FOO.SO.VER1, and
|
222 |
|
|
the object we are considering needs a dynamic object
|
223 |
|
|
FOO.SO.VER2, and VER1 and VER2 are different. This
|
224 |
|
|
appears to be a version mismatch, so we tell the caller
|
225 |
|
|
to try a different version of this library. */
|
226 |
|
|
global_vercheck_failed = TRUE;
|
227 |
|
|
return;
|
228 |
|
|
}
|
229 |
|
|
}
|
230 |
|
|
}
|
231 |
|
|
|
232 |
|
|
|
233 |
|
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/* See if an input file matches a DT_NEEDED entry by running stat on
|
234 |
|
|
the file. */
|
235 |
|
|
|
236 |
|
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static void
|
237 |
|
|
gld${EMULATION_NAME}_stat_needed (lang_input_statement_type *s)
|
238 |
|
|
{
|
239 |
|
|
struct stat st;
|
240 |
|
|
const char *suffix;
|
241 |
|
|
const char *soname;
|
242 |
|
|
|
243 |
|
|
if (global_found != NULL)
|
244 |
|
|
return;
|
245 |
|
|
if (s->the_bfd == NULL)
|
246 |
|
|
return;
|
247 |
|
|
|
248 |
|
|
/* If this input file was an as-needed entry, and wasn't found to be
|
249 |
|
|
needed at the stage it was linked, then don't say we have loaded it. */
|
250 |
|
|
if ((bfd_elf_get_dyn_lib_class (s->the_bfd) & DYN_AS_NEEDED) != 0)
|
251 |
|
|
return;
|
252 |
|
|
|
253 |
|
|
if (bfd_stat (s->the_bfd, &st) != 0)
|
254 |
|
|
{
|
255 |
|
|
einfo ("%P:%B: bfd_stat failed: %E\n", s->the_bfd);
|
256 |
|
|
return;
|
257 |
|
|
}
|
258 |
|
|
|
259 |
|
|
/* Some operating systems, e.g. Windows, do not provide a meaningful
|
260 |
|
|
st_ino; they always set it to zero. (Windows does provide a
|
261 |
|
|
meaningful st_dev.) Do not indicate a duplicate library in that
|
262 |
|
|
case. While there is no guarantee that a system that provides
|
263 |
|
|
meaningful inode numbers will never set st_ino to zero, this is
|
264 |
|
|
merely an optimization, so we do not need to worry about false
|
265 |
|
|
negatives. */
|
266 |
|
|
if (st.st_dev == global_stat.st_dev
|
267 |
|
|
&& st.st_ino == global_stat.st_ino
|
268 |
|
|
&& st.st_ino != 0)
|
269 |
|
|
{
|
270 |
|
|
global_found = s;
|
271 |
|
|
return;
|
272 |
|
|
}
|
273 |
|
|
|
274 |
|
|
/* We issue a warning if it looks like we are including two
|
275 |
|
|
different versions of the same shared library. For example,
|
276 |
|
|
there may be a problem if -lc picks up libc.so.6 but some other
|
277 |
|
|
shared library has a DT_NEEDED entry of libc.so.5. This is a
|
278 |
|
|
heuristic test, and it will only work if the name looks like
|
279 |
|
|
NAME.so.VERSION. FIXME: Depending on file names is error-prone.
|
280 |
|
|
If we really want to issue warnings about mixing version numbers
|
281 |
|
|
of shared libraries, we need to find a better way. */
|
282 |
|
|
|
283 |
|
|
if (strchr (global_needed->name, '/') != NULL)
|
284 |
|
|
return;
|
285 |
|
|
suffix = strstr (global_needed->name, ".so.");
|
286 |
|
|
if (suffix == NULL)
|
287 |
|
|
return;
|
288 |
|
|
suffix += sizeof ".so." - 1;
|
289 |
|
|
|
290 |
|
|
soname = bfd_elf_get_dt_soname (s->the_bfd);
|
291 |
|
|
if (soname == NULL)
|
292 |
|
|
soname = lbasename (s->filename);
|
293 |
|
|
|
294 |
|
|
if (filename_ncmp (soname, global_needed->name, suffix - global_needed->name) == 0)
|
295 |
|
|
einfo ("%P: warning: %s, needed by %B, may conflict with %s\n",
|
296 |
|
|
global_needed->name, global_needed->by, soname);
|
297 |
|
|
}
|
298 |
|
|
|
299 |
|
|
struct dt_needed
|
300 |
|
|
{
|
301 |
|
|
bfd *by;
|
302 |
|
|
const char *name;
|
303 |
|
|
};
|
304 |
|
|
|
305 |
|
|
/* This function is called for each possible name for a dynamic object
|
306 |
|
|
named by a DT_NEEDED entry. The FORCE parameter indicates whether
|
307 |
|
|
to skip the check for a conflicting version. */
|
308 |
|
|
|
309 |
|
|
static bfd_boolean
|
310 |
|
|
gld${EMULATION_NAME}_try_needed (struct dt_needed *needed,
|
311 |
|
|
int force)
|
312 |
|
|
{
|
313 |
|
|
bfd *abfd;
|
314 |
|
|
const char *name = needed->name;
|
315 |
|
|
const char *soname;
|
316 |
|
|
int link_class;
|
317 |
|
|
|
318 |
|
|
abfd = bfd_openr (name, bfd_get_target (link_info.output_bfd));
|
319 |
|
|
if (abfd == NULL)
|
320 |
|
|
return FALSE;
|
321 |
|
|
|
322 |
|
|
/* Linker needs to decompress sections. */
|
323 |
|
|
abfd->flags |= BFD_DECOMPRESS;
|
324 |
|
|
|
325 |
|
|
if (! bfd_check_format (abfd, bfd_object))
|
326 |
|
|
{
|
327 |
|
|
bfd_close (abfd);
|
328 |
|
|
return FALSE;
|
329 |
|
|
}
|
330 |
|
|
if ((bfd_get_file_flags (abfd) & DYNAMIC) == 0)
|
331 |
|
|
{
|
332 |
|
|
bfd_close (abfd);
|
333 |
|
|
return FALSE;
|
334 |
|
|
}
|
335 |
|
|
|
336 |
|
|
/* For DT_NEEDED, they have to match. */
|
337 |
|
|
if (abfd->xvec != link_info.output_bfd->xvec)
|
338 |
|
|
{
|
339 |
|
|
bfd_close (abfd);
|
340 |
|
|
return FALSE;
|
341 |
|
|
}
|
342 |
|
|
|
343 |
|
|
/* Check whether this object would include any conflicting library
|
344 |
|
|
versions. If FORCE is set, then we skip this check; we use this
|
345 |
|
|
the second time around, if we couldn't find any compatible
|
346 |
|
|
instance of the shared library. */
|
347 |
|
|
|
348 |
|
|
if (! force)
|
349 |
|
|
{
|
350 |
|
|
struct bfd_link_needed_list *needs;
|
351 |
|
|
|
352 |
|
|
if (! bfd_elf_get_bfd_needed_list (abfd, &needs))
|
353 |
|
|
einfo ("%F%P:%B: bfd_elf_get_bfd_needed_list failed: %E\n", abfd);
|
354 |
|
|
|
355 |
|
|
if (needs != NULL)
|
356 |
|
|
{
|
357 |
|
|
global_vercheck_needed = needs;
|
358 |
|
|
global_vercheck_failed = FALSE;
|
359 |
|
|
lang_for_each_input_file (gld${EMULATION_NAME}_vercheck);
|
360 |
|
|
if (global_vercheck_failed)
|
361 |
|
|
{
|
362 |
|
|
bfd_close (abfd);
|
363 |
|
|
/* Return FALSE to force the caller to move on to try
|
364 |
|
|
another file on the search path. */
|
365 |
|
|
return FALSE;
|
366 |
|
|
}
|
367 |
|
|
|
368 |
|
|
/* But wait! It gets much worse. On Linux, if a shared
|
369 |
|
|
library does not use libc at all, we are supposed to skip
|
370 |
|
|
it the first time around in case we encounter a shared
|
371 |
|
|
library later on with the same name which does use the
|
372 |
|
|
version of libc that we want. This is much too horrible
|
373 |
|
|
to use on any system other than Linux. */
|
374 |
|
|
|
375 |
|
|
EOF
|
376 |
|
|
case ${target} in
|
377 |
|
|
*-*-linux-* | *-*-k*bsd*-*)
|
378 |
|
|
fragment <
|
379 |
|
|
{
|
380 |
|
|
struct bfd_link_needed_list *l;
|
381 |
|
|
|
382 |
|
|
for (l = needs; l != NULL; l = l->next)
|
383 |
|
|
if (CONST_STRNEQ (l->name, "libc.so"))
|
384 |
|
|
break;
|
385 |
|
|
if (l == NULL)
|
386 |
|
|
{
|
387 |
|
|
bfd_close (abfd);
|
388 |
|
|
return FALSE;
|
389 |
|
|
}
|
390 |
|
|
}
|
391 |
|
|
|
392 |
|
|
EOF
|
393 |
|
|
;;
|
394 |
|
|
esac
|
395 |
|
|
fragment <
|
396 |
|
|
}
|
397 |
|
|
}
|
398 |
|
|
|
399 |
|
|
/* We've found a dynamic object matching the DT_NEEDED entry. */
|
400 |
|
|
|
401 |
|
|
/* We have already checked that there is no other input file of the
|
402 |
|
|
same name. We must now check again that we are not including the
|
403 |
|
|
same file twice. We need to do this because on many systems
|
404 |
|
|
libc.so is a symlink to, e.g., libc.so.1. The SONAME entry will
|
405 |
|
|
reference libc.so.1. If we have already included libc.so, we
|
406 |
|
|
don't want to include libc.so.1 if they are the same file, and we
|
407 |
|
|
can only check that using stat. */
|
408 |
|
|
|
409 |
|
|
if (bfd_stat (abfd, &global_stat) != 0)
|
410 |
|
|
einfo ("%F%P:%B: bfd_stat failed: %E\n", abfd);
|
411 |
|
|
|
412 |
|
|
/* First strip off everything before the last '/'. */
|
413 |
|
|
soname = lbasename (abfd->filename);
|
414 |
|
|
|
415 |
|
|
if (trace_file_tries)
|
416 |
|
|
info_msg (_("found %s at %s\n"), soname, name);
|
417 |
|
|
|
418 |
|
|
global_found = NULL;
|
419 |
|
|
lang_for_each_input_file (gld${EMULATION_NAME}_stat_needed);
|
420 |
|
|
if (global_found != NULL)
|
421 |
|
|
{
|
422 |
|
|
/* Return TRUE to indicate that we found the file, even though
|
423 |
|
|
we aren't going to do anything with it. */
|
424 |
|
|
return TRUE;
|
425 |
|
|
}
|
426 |
|
|
|
427 |
|
|
/* Specify the soname to use. */
|
428 |
|
|
bfd_elf_set_dt_needed_name (abfd, soname);
|
429 |
|
|
|
430 |
|
|
/* Tell the ELF linker that we don't want the output file to have a
|
431 |
|
|
DT_NEEDED entry for this file, unless it is used to resolve
|
432 |
|
|
references in a regular object. */
|
433 |
|
|
link_class = DYN_DT_NEEDED;
|
434 |
|
|
|
435 |
|
|
/* Tell the ELF linker that we don't want the output file to have a
|
436 |
|
|
DT_NEEDED entry for this file at all if the entry is from a file
|
437 |
|
|
with DYN_NO_ADD_NEEDED. */
|
438 |
|
|
if (needed->by != NULL
|
439 |
|
|
&& (bfd_elf_get_dyn_lib_class (needed->by) & DYN_NO_ADD_NEEDED) != 0)
|
440 |
|
|
link_class |= DYN_NO_NEEDED | DYN_NO_ADD_NEEDED;
|
441 |
|
|
|
442 |
|
|
bfd_elf_set_dyn_lib_class (abfd, (enum dynamic_lib_link_class) link_class);
|
443 |
|
|
|
444 |
|
|
/* Add this file into the symbol table. */
|
445 |
|
|
if (! bfd_link_add_symbols (abfd, &link_info))
|
446 |
|
|
einfo ("%F%B: could not read symbols: %E\n", abfd);
|
447 |
|
|
|
448 |
|
|
return TRUE;
|
449 |
|
|
}
|
450 |
|
|
|
451 |
|
|
|
452 |
|
|
/* Search for a needed file in a path. */
|
453 |
|
|
|
454 |
|
|
static bfd_boolean
|
455 |
|
|
gld${EMULATION_NAME}_search_needed (const char *path,
|
456 |
|
|
struct dt_needed *n, int force)
|
457 |
|
|
{
|
458 |
|
|
const char *s;
|
459 |
|
|
const char *name = n->name;
|
460 |
|
|
size_t len;
|
461 |
|
|
struct dt_needed needed;
|
462 |
|
|
|
463 |
|
|
if (name[0] == '/')
|
464 |
|
|
return gld${EMULATION_NAME}_try_needed (n, force);
|
465 |
|
|
|
466 |
|
|
if (path == NULL || *path == '\0')
|
467 |
|
|
return FALSE;
|
468 |
|
|
|
469 |
|
|
needed.by = n->by;
|
470 |
|
|
needed.name = n->name;
|
471 |
|
|
|
472 |
|
|
len = strlen (name);
|
473 |
|
|
while (1)
|
474 |
|
|
{
|
475 |
|
|
char *filename, *sset;
|
476 |
|
|
|
477 |
|
|
s = strchr (path, config.rpath_separator);
|
478 |
|
|
if (s == NULL)
|
479 |
|
|
s = path + strlen (path);
|
480 |
|
|
|
481 |
|
|
#if HAVE_DOS_BASED_FILE_SYSTEM
|
482 |
|
|
/* Assume a match on the second char is part of drive specifier. */
|
483 |
|
|
else if (config.rpath_separator == ':'
|
484 |
|
|
&& s == path + 1
|
485 |
|
|
&& ISALPHA (*path))
|
486 |
|
|
{
|
487 |
|
|
s = strchr (s + 1, config.rpath_separator);
|
488 |
|
|
if (s == NULL)
|
489 |
|
|
s = path + strlen (path);
|
490 |
|
|
}
|
491 |
|
|
#endif
|
492 |
|
|
filename = (char *) xmalloc (s - path + len + 2);
|
493 |
|
|
if (s == path)
|
494 |
|
|
sset = filename;
|
495 |
|
|
else
|
496 |
|
|
{
|
497 |
|
|
memcpy (filename, path, s - path);
|
498 |
|
|
filename[s - path] = '/';
|
499 |
|
|
sset = filename + (s - path) + 1;
|
500 |
|
|
}
|
501 |
|
|
strcpy (sset, name);
|
502 |
|
|
|
503 |
|
|
needed.name = filename;
|
504 |
|
|
if (gld${EMULATION_NAME}_try_needed (&needed, force))
|
505 |
|
|
return TRUE;
|
506 |
|
|
|
507 |
|
|
free (filename);
|
508 |
|
|
|
509 |
|
|
if (*s == '\0')
|
510 |
|
|
break;
|
511 |
|
|
path = s + 1;
|
512 |
|
|
}
|
513 |
|
|
|
514 |
|
|
return FALSE;
|
515 |
|
|
}
|
516 |
|
|
|
517 |
|
|
EOF
|
518 |
|
|
if [ "x${USE_LIBPATH}" = xyes ] ; then
|
519 |
|
|
fragment <
|
520 |
|
|
|
521 |
|
|
/* Add the sysroot to every entry in a path separated by
|
522 |
|
|
config.rpath_separator. */
|
523 |
|
|
|
524 |
|
|
static char *
|
525 |
|
|
gld${EMULATION_NAME}_add_sysroot (const char *path)
|
526 |
|
|
{
|
527 |
|
|
int len, colons, i;
|
528 |
|
|
char *ret, *p;
|
529 |
|
|
|
530 |
|
|
len = strlen (path);
|
531 |
|
|
colons = 0;
|
532 |
|
|
i = 0;
|
533 |
|
|
while (path[i])
|
534 |
|
|
if (path[i++] == config.rpath_separator)
|
535 |
|
|
colons++;
|
536 |
|
|
|
537 |
|
|
if (path[i])
|
538 |
|
|
colons++;
|
539 |
|
|
|
540 |
|
|
len = len + (colons + 1) * strlen (ld_sysroot);
|
541 |
|
|
ret = xmalloc (len + 1);
|
542 |
|
|
strcpy (ret, ld_sysroot);
|
543 |
|
|
p = ret + strlen (ret);
|
544 |
|
|
i = 0;
|
545 |
|
|
while (path[i])
|
546 |
|
|
if (path[i] == config.rpath_separator)
|
547 |
|
|
{
|
548 |
|
|
*p++ = path[i++];
|
549 |
|
|
strcpy (p, ld_sysroot);
|
550 |
|
|
p = p + strlen (p);
|
551 |
|
|
}
|
552 |
|
|
else
|
553 |
|
|
*p++ = path[i++];
|
554 |
|
|
|
555 |
|
|
*p = 0;
|
556 |
|
|
return ret;
|
557 |
|
|
}
|
558 |
|
|
|
559 |
|
|
EOF
|
560 |
|
|
case ${target} in
|
561 |
|
|
*-*-freebsd* | *-*-dragonfly*)
|
562 |
|
|
fragment <
|
563 |
|
|
/* Read the system search path the FreeBSD way rather than the Linux way. */
|
564 |
|
|
#ifdef HAVE_ELF_HINTS_H
|
565 |
|
|
#include
|
566 |
|
|
#else
|
567 |
|
|
#include "elf-hints-local.h"
|
568 |
|
|
#endif
|
569 |
|
|
|
570 |
|
|
static bfd_boolean
|
571 |
|
|
gld${EMULATION_NAME}_check_ld_elf_hints (const char *name, int force)
|
572 |
|
|
{
|
573 |
|
|
static bfd_boolean initialized;
|
574 |
|
|
static char *ld_elf_hints;
|
575 |
|
|
struct dt_needed needed;
|
576 |
|
|
|
577 |
|
|
if (!initialized)
|
578 |
|
|
{
|
579 |
|
|
FILE *f;
|
580 |
|
|
char *tmppath;
|
581 |
|
|
|
582 |
|
|
tmppath = concat (ld_sysroot, _PATH_ELF_HINTS, (const char *) NULL);
|
583 |
|
|
f = fopen (tmppath, FOPEN_RB);
|
584 |
|
|
free (tmppath);
|
585 |
|
|
if (f != NULL)
|
586 |
|
|
{
|
587 |
|
|
struct elfhints_hdr hdr;
|
588 |
|
|
|
589 |
|
|
if (fread (&hdr, 1, sizeof (hdr), f) == sizeof (hdr)
|
590 |
|
|
&& hdr.magic == ELFHINTS_MAGIC
|
591 |
|
|
&& hdr.version == 1)
|
592 |
|
|
{
|
593 |
|
|
if (fseek (f, hdr.strtab + hdr.dirlist, SEEK_SET) != -1)
|
594 |
|
|
{
|
595 |
|
|
char *b;
|
596 |
|
|
|
597 |
|
|
b = xmalloc (hdr.dirlistlen + 1);
|
598 |
|
|
if (fread (b, 1, hdr.dirlistlen + 1, f) ==
|
599 |
|
|
hdr.dirlistlen + 1)
|
600 |
|
|
ld_elf_hints = gld${EMULATION_NAME}_add_sysroot (b);
|
601 |
|
|
|
602 |
|
|
free (b);
|
603 |
|
|
}
|
604 |
|
|
}
|
605 |
|
|
fclose (f);
|
606 |
|
|
}
|
607 |
|
|
|
608 |
|
|
initialized = TRUE;
|
609 |
|
|
}
|
610 |
|
|
|
611 |
|
|
if (ld_elf_hints == NULL)
|
612 |
|
|
return FALSE;
|
613 |
|
|
|
614 |
|
|
needed.by = NULL;
|
615 |
|
|
needed.name = name;
|
616 |
|
|
return gld${EMULATION_NAME}_search_needed (ld_elf_hints, & needed,
|
617 |
|
|
force);
|
618 |
|
|
}
|
619 |
|
|
EOF
|
620 |
|
|
# FreeBSD
|
621 |
|
|
;;
|
622 |
|
|
|
623 |
|
|
*-*-linux-* | *-*-k*bsd*-*)
|
624 |
|
|
fragment <
|
625 |
|
|
/* For a native linker, check the file /etc/ld.so.conf for directories
|
626 |
|
|
in which we may find shared libraries. /etc/ld.so.conf is really
|
627 |
|
|
only meaningful on Linux. */
|
628 |
|
|
|
629 |
|
|
struct gld${EMULATION_NAME}_ld_so_conf
|
630 |
|
|
{
|
631 |
|
|
char *path;
|
632 |
|
|
size_t len, alloc;
|
633 |
|
|
};
|
634 |
|
|
|
635 |
|
|
static bfd_boolean
|
636 |
|
|
gld${EMULATION_NAME}_parse_ld_so_conf
|
637 |
|
|
(struct gld${EMULATION_NAME}_ld_so_conf *info, const char *filename);
|
638 |
|
|
|
639 |
|
|
static void
|
640 |
|
|
gld${EMULATION_NAME}_parse_ld_so_conf_include
|
641 |
|
|
(struct gld${EMULATION_NAME}_ld_so_conf *info, const char *filename,
|
642 |
|
|
const char *pattern)
|
643 |
|
|
{
|
644 |
|
|
char *newp = NULL;
|
645 |
|
|
#ifdef HAVE_GLOB
|
646 |
|
|
glob_t gl;
|
647 |
|
|
#endif
|
648 |
|
|
|
649 |
|
|
if (pattern[0] != '/')
|
650 |
|
|
{
|
651 |
|
|
char *p = strrchr (filename, '/');
|
652 |
|
|
size_t patlen = strlen (pattern) + 1;
|
653 |
|
|
|
654 |
|
|
newp = xmalloc (p - filename + 1 + patlen);
|
655 |
|
|
memcpy (newp, filename, p - filename + 1);
|
656 |
|
|
memcpy (newp + (p - filename + 1), pattern, patlen);
|
657 |
|
|
pattern = newp;
|
658 |
|
|
}
|
659 |
|
|
|
660 |
|
|
#ifdef HAVE_GLOB
|
661 |
|
|
if (glob (pattern, 0, NULL, &gl) == 0)
|
662 |
|
|
{
|
663 |
|
|
size_t i;
|
664 |
|
|
|
665 |
|
|
for (i = 0; i < gl.gl_pathc; ++i)
|
666 |
|
|
gld${EMULATION_NAME}_parse_ld_so_conf (info, gl.gl_pathv[i]);
|
667 |
|
|
globfree (&gl);
|
668 |
|
|
}
|
669 |
|
|
#else
|
670 |
|
|
/* If we do not have glob, treat the pattern as a literal filename. */
|
671 |
|
|
gld${EMULATION_NAME}_parse_ld_so_conf (info, pattern);
|
672 |
|
|
#endif
|
673 |
|
|
|
674 |
|
|
if (newp)
|
675 |
|
|
free (newp);
|
676 |
|
|
}
|
677 |
|
|
|
678 |
|
|
static bfd_boolean
|
679 |
|
|
gld${EMULATION_NAME}_parse_ld_so_conf
|
680 |
|
|
(struct gld${EMULATION_NAME}_ld_so_conf *info, const char *filename)
|
681 |
|
|
{
|
682 |
|
|
FILE *f = fopen (filename, FOPEN_RT);
|
683 |
|
|
char *line;
|
684 |
|
|
size_t linelen;
|
685 |
|
|
|
686 |
|
|
if (f == NULL)
|
687 |
|
|
return FALSE;
|
688 |
|
|
|
689 |
|
|
linelen = 256;
|
690 |
|
|
line = xmalloc (linelen);
|
691 |
|
|
do
|
692 |
|
|
{
|
693 |
|
|
char *p = line, *q;
|
694 |
|
|
|
695 |
|
|
/* Normally this would use getline(3), but we need to be portable. */
|
696 |
|
|
while ((q = fgets (p, linelen - (p - line), f)) != NULL
|
697 |
|
|
&& strlen (q) == linelen - (p - line) - 1
|
698 |
|
|
&& line[linelen - 2] != '\n')
|
699 |
|
|
{
|
700 |
|
|
line = xrealloc (line, 2 * linelen);
|
701 |
|
|
p = line + linelen - 1;
|
702 |
|
|
linelen += linelen;
|
703 |
|
|
}
|
704 |
|
|
|
705 |
|
|
if (q == NULL && p == line)
|
706 |
|
|
break;
|
707 |
|
|
|
708 |
|
|
p = strchr (line, '\n');
|
709 |
|
|
if (p)
|
710 |
|
|
*p = '\0';
|
711 |
|
|
|
712 |
|
|
/* Because the file format does not know any form of quoting we
|
713 |
|
|
can search forward for the next '#' character and if found
|
714 |
|
|
make it terminating the line. */
|
715 |
|
|
p = strchr (line, '#');
|
716 |
|
|
if (p)
|
717 |
|
|
*p = '\0';
|
718 |
|
|
|
719 |
|
|
/* Remove leading whitespace. NUL is no whitespace character. */
|
720 |
|
|
p = line;
|
721 |
|
|
while (*p == ' ' || *p == '\f' || *p == '\r' || *p == '\t' || *p == '\v')
|
722 |
|
|
++p;
|
723 |
|
|
|
724 |
|
|
/* If the line is blank it is ignored. */
|
725 |
|
|
if (p[0] == '\0')
|
726 |
|
|
continue;
|
727 |
|
|
|
728 |
|
|
if (CONST_STRNEQ (p, "include") && (p[7] == ' ' || p[7] == '\t'))
|
729 |
|
|
{
|
730 |
|
|
char *dir, c;
|
731 |
|
|
p += 8;
|
732 |
|
|
do
|
733 |
|
|
{
|
734 |
|
|
while (*p == ' ' || *p == '\t')
|
735 |
|
|
++p;
|
736 |
|
|
|
737 |
|
|
if (*p == '\0')
|
738 |
|
|
break;
|
739 |
|
|
|
740 |
|
|
dir = p;
|
741 |
|
|
|
742 |
|
|
while (*p != ' ' && *p != '\t' && *p)
|
743 |
|
|
++p;
|
744 |
|
|
|
745 |
|
|
c = *p;
|
746 |
|
|
*p++ = '\0';
|
747 |
|
|
if (dir[0] != '\0')
|
748 |
|
|
gld${EMULATION_NAME}_parse_ld_so_conf_include (info, filename,
|
749 |
|
|
dir);
|
750 |
|
|
}
|
751 |
|
|
while (c != '\0');
|
752 |
|
|
}
|
753 |
|
|
else
|
754 |
|
|
{
|
755 |
|
|
char *dir = p;
|
756 |
|
|
while (*p && *p != '=' && *p != ' ' && *p != '\t' && *p != '\f'
|
757 |
|
|
&& *p != '\r' && *p != '\v')
|
758 |
|
|
++p;
|
759 |
|
|
|
760 |
|
|
while (p != dir && p[-1] == '/')
|
761 |
|
|
--p;
|
762 |
|
|
if (info->path == NULL)
|
763 |
|
|
{
|
764 |
|
|
info->alloc = p - dir + 1 + 256;
|
765 |
|
|
info->path = xmalloc (info->alloc);
|
766 |
|
|
info->len = 0;
|
767 |
|
|
}
|
768 |
|
|
else
|
769 |
|
|
{
|
770 |
|
|
if (info->len + 1 + (p - dir) >= info->alloc)
|
771 |
|
|
{
|
772 |
|
|
info->alloc += p - dir + 256;
|
773 |
|
|
info->path = xrealloc (info->path, info->alloc);
|
774 |
|
|
}
|
775 |
|
|
info->path[info->len++] = config.rpath_separator;
|
776 |
|
|
}
|
777 |
|
|
memcpy (info->path + info->len, dir, p - dir);
|
778 |
|
|
info->len += p - dir;
|
779 |
|
|
info->path[info->len] = '\0';
|
780 |
|
|
}
|
781 |
|
|
}
|
782 |
|
|
while (! feof (f));
|
783 |
|
|
free (line);
|
784 |
|
|
fclose (f);
|
785 |
|
|
return TRUE;
|
786 |
|
|
}
|
787 |
|
|
|
788 |
|
|
static bfd_boolean
|
789 |
|
|
gld${EMULATION_NAME}_check_ld_so_conf (const char *name, int force)
|
790 |
|
|
{
|
791 |
|
|
static bfd_boolean initialized;
|
792 |
|
|
static char *ld_so_conf;
|
793 |
|
|
struct dt_needed needed;
|
794 |
|
|
|
795 |
|
|
if (! initialized)
|
796 |
|
|
{
|
797 |
|
|
char *tmppath;
|
798 |
|
|
struct gld${EMULATION_NAME}_ld_so_conf info;
|
799 |
|
|
|
800 |
|
|
info.path = NULL;
|
801 |
|
|
info.len = info.alloc = 0;
|
802 |
|
|
tmppath = concat (ld_sysroot, "${prefix}/etc/ld.so.conf",
|
803 |
|
|
(const char *) NULL);
|
804 |
|
|
if (!gld${EMULATION_NAME}_parse_ld_so_conf (&info, tmppath))
|
805 |
|
|
{
|
806 |
|
|
free (tmppath);
|
807 |
|
|
tmppath = concat (ld_sysroot, "/etc/ld.so.conf",
|
808 |
|
|
(const char *) NULL);
|
809 |
|
|
gld${EMULATION_NAME}_parse_ld_so_conf (&info, tmppath);
|
810 |
|
|
}
|
811 |
|
|
free (tmppath);
|
812 |
|
|
|
813 |
|
|
if (info.path)
|
814 |
|
|
{
|
815 |
|
|
char *d = gld${EMULATION_NAME}_add_sysroot (info.path);
|
816 |
|
|
free (info.path);
|
817 |
|
|
ld_so_conf = d;
|
818 |
|
|
}
|
819 |
|
|
initialized = TRUE;
|
820 |
|
|
}
|
821 |
|
|
|
822 |
|
|
if (ld_so_conf == NULL)
|
823 |
|
|
return FALSE;
|
824 |
|
|
|
825 |
|
|
|
826 |
|
|
needed.by = NULL;
|
827 |
|
|
needed.name = name;
|
828 |
|
|
return gld${EMULATION_NAME}_search_needed (ld_so_conf, &needed, force);
|
829 |
|
|
}
|
830 |
|
|
|
831 |
|
|
EOF
|
832 |
|
|
# Linux
|
833 |
|
|
;;
|
834 |
|
|
esac
|
835 |
|
|
fi
|
836 |
|
|
fragment <
|
837 |
|
|
|
838 |
|
|
/* See if an input file matches a DT_NEEDED entry by name. */
|
839 |
|
|
|
840 |
|
|
static void
|
841 |
|
|
gld${EMULATION_NAME}_check_needed (lang_input_statement_type *s)
|
842 |
|
|
{
|
843 |
|
|
const char *soname;
|
844 |
|
|
|
845 |
|
|
/* Stop looking if we've found a loaded lib. */
|
846 |
|
|
if (global_found != NULL
|
847 |
|
|
&& (bfd_elf_get_dyn_lib_class (global_found->the_bfd)
|
848 |
|
|
& DYN_AS_NEEDED) == 0)
|
849 |
|
|
return;
|
850 |
|
|
|
851 |
|
|
if (s->filename == NULL || s->the_bfd == NULL)
|
852 |
|
|
return;
|
853 |
|
|
|
854 |
|
|
/* Don't look for a second non-loaded as-needed lib. */
|
855 |
|
|
if (global_found != NULL
|
856 |
|
|
&& (bfd_elf_get_dyn_lib_class (s->the_bfd) & DYN_AS_NEEDED) != 0)
|
857 |
|
|
return;
|
858 |
|
|
|
859 |
|
|
if (filename_cmp (s->filename, global_needed->name) == 0)
|
860 |
|
|
{
|
861 |
|
|
global_found = s;
|
862 |
|
|
return;
|
863 |
|
|
}
|
864 |
|
|
|
865 |
|
|
if (s->search_dirs_flag)
|
866 |
|
|
{
|
867 |
|
|
const char *f = strrchr (s->filename, '/');
|
868 |
|
|
if (f != NULL
|
869 |
|
|
&& filename_cmp (f + 1, global_needed->name) == 0)
|
870 |
|
|
{
|
871 |
|
|
global_found = s;
|
872 |
|
|
return;
|
873 |
|
|
}
|
874 |
|
|
}
|
875 |
|
|
|
876 |
|
|
soname = bfd_elf_get_dt_soname (s->the_bfd);
|
877 |
|
|
if (soname != NULL
|
878 |
|
|
&& filename_cmp (soname, global_needed->name) == 0)
|
879 |
|
|
{
|
880 |
|
|
global_found = s;
|
881 |
|
|
return;
|
882 |
|
|
}
|
883 |
|
|
}
|
884 |
|
|
|
885 |
|
|
EOF
|
886 |
|
|
|
887 |
|
|
if test x"$LDEMUL_AFTER_OPEN" != xgld"$EMULATION_NAME"_after_open; then
|
888 |
|
|
fragment <
|
889 |
|
|
|
890 |
|
|
static bfd_size_type
|
891 |
|
|
gld${EMULATION_NAME}_id_note_section_size (bfd *abfd,
|
892 |
|
|
struct bfd_link_info *linfo)
|
893 |
|
|
{
|
894 |
|
|
const char *style = linfo->emit_note_gnu_build_id;
|
895 |
|
|
bfd_size_type size;
|
896 |
|
|
|
897 |
|
|
abfd = abfd;
|
898 |
|
|
|
899 |
|
|
size = offsetof (Elf_External_Note, name[sizeof "GNU"]);
|
900 |
|
|
size = (size + 3) & -(bfd_size_type) 4;
|
901 |
|
|
|
902 |
|
|
if (!strcmp (style, "md5") || !strcmp (style, "uuid"))
|
903 |
|
|
size += 128 / 8;
|
904 |
|
|
else if (!strcmp (style, "sha1"))
|
905 |
|
|
size += 160 / 8;
|
906 |
|
|
else if (!strncmp (style, "0x", 2))
|
907 |
|
|
{
|
908 |
|
|
/* ID is in string form (hex). Convert to bits. */
|
909 |
|
|
const char *id = style + 2;
|
910 |
|
|
do
|
911 |
|
|
{
|
912 |
|
|
if (ISXDIGIT (id[0]) && ISXDIGIT (id[1]))
|
913 |
|
|
{
|
914 |
|
|
++size;
|
915 |
|
|
id += 2;
|
916 |
|
|
}
|
917 |
|
|
else if (*id == '-' || *id == ':')
|
918 |
|
|
++id;
|
919 |
|
|
else
|
920 |
|
|
{
|
921 |
|
|
size = 0;
|
922 |
|
|
break;
|
923 |
|
|
}
|
924 |
|
|
} while (*id != '\0');
|
925 |
|
|
}
|
926 |
|
|
else
|
927 |
|
|
size = 0;
|
928 |
|
|
|
929 |
|
|
return size;
|
930 |
|
|
}
|
931 |
|
|
|
932 |
|
|
static unsigned char
|
933 |
|
|
read_hex (const char xdigit)
|
934 |
|
|
{
|
935 |
|
|
if (ISDIGIT (xdigit))
|
936 |
|
|
return xdigit - '0';
|
937 |
|
|
if (ISUPPER (xdigit))
|
938 |
|
|
return xdigit - 'A' + 0xa;
|
939 |
|
|
if (ISLOWER (xdigit))
|
940 |
|
|
return xdigit - 'a' + 0xa;
|
941 |
|
|
abort ();
|
942 |
|
|
return 0;
|
943 |
|
|
}
|
944 |
|
|
|
945 |
|
|
struct build_id_info
|
946 |
|
|
{
|
947 |
|
|
const char *style;
|
948 |
|
|
asection *sec;
|
949 |
|
|
};
|
950 |
|
|
|
951 |
|
|
static bfd_boolean
|
952 |
|
|
gld${EMULATION_NAME}_write_build_id_section (bfd *abfd)
|
953 |
|
|
{
|
954 |
|
|
const struct elf_backend_data *bed = get_elf_backend_data (abfd);
|
955 |
|
|
struct build_id_info *info = (struct build_id_info *)
|
956 |
|
|
elf_tdata (abfd)->after_write_object_contents_info;
|
957 |
|
|
asection *asec;
|
958 |
|
|
Elf_Internal_Shdr *i_shdr;
|
959 |
|
|
unsigned char *contents, *id_bits;
|
960 |
|
|
bfd_size_type size;
|
961 |
|
|
Elf_External_Note *e_note;
|
962 |
|
|
|
963 |
|
|
asec = info->sec;
|
964 |
|
|
if (bfd_is_abs_section (asec->output_section))
|
965 |
|
|
{
|
966 |
|
|
einfo (_("%P: warning: .note.gnu.build-id section discarded,"
|
967 |
|
|
" --build-id ignored.\n"));
|
968 |
|
|
return TRUE;
|
969 |
|
|
}
|
970 |
|
|
i_shdr = &elf_section_data (asec->output_section)->this_hdr;
|
971 |
|
|
|
972 |
|
|
if (i_shdr->contents == NULL)
|
973 |
|
|
{
|
974 |
|
|
if (asec->contents == NULL)
|
975 |
|
|
asec->contents = (unsigned char *) xmalloc (asec->size);
|
976 |
|
|
contents = asec->contents;
|
977 |
|
|
}
|
978 |
|
|
else
|
979 |
|
|
contents = i_shdr->contents + asec->output_offset;
|
980 |
|
|
|
981 |
|
|
e_note = (Elf_External_Note *) contents;
|
982 |
|
|
size = offsetof (Elf_External_Note, name[sizeof "GNU"]);
|
983 |
|
|
size = (size + 3) & -(bfd_size_type) 4;
|
984 |
|
|
id_bits = contents + size;
|
985 |
|
|
size = asec->size - size;
|
986 |
|
|
|
987 |
|
|
bfd_h_put_32 (abfd, sizeof "GNU", &e_note->namesz);
|
988 |
|
|
bfd_h_put_32 (abfd, size, &e_note->descsz);
|
989 |
|
|
bfd_h_put_32 (abfd, NT_GNU_BUILD_ID, &e_note->type);
|
990 |
|
|
memcpy (e_note->name, "GNU", sizeof "GNU");
|
991 |
|
|
|
992 |
|
|
if (!strcmp (info->style, "md5"))
|
993 |
|
|
{
|
994 |
|
|
struct md5_ctx ctx;
|
995 |
|
|
md5_init_ctx (&ctx);
|
996 |
|
|
if (bed->s->checksum_contents (abfd,
|
997 |
|
|
(void (*) (const void *, size_t, void *))
|
998 |
|
|
&md5_process_bytes,
|
999 |
|
|
&ctx))
|
1000 |
|
|
md5_finish_ctx (&ctx, id_bits);
|
1001 |
|
|
else
|
1002 |
|
|
return FALSE;
|
1003 |
|
|
}
|
1004 |
|
|
else if (!strcmp (info->style, "sha1"))
|
1005 |
|
|
{
|
1006 |
|
|
struct sha1_ctx ctx;
|
1007 |
|
|
sha1_init_ctx (&ctx);
|
1008 |
|
|
if (bed->s->checksum_contents (abfd,
|
1009 |
|
|
(void (*) (const void *, size_t, void *))
|
1010 |
|
|
&sha1_process_bytes,
|
1011 |
|
|
&ctx))
|
1012 |
|
|
sha1_finish_ctx (&ctx, id_bits);
|
1013 |
|
|
else
|
1014 |
|
|
return FALSE;
|
1015 |
|
|
}
|
1016 |
|
|
else if (!strcmp (info->style, "uuid"))
|
1017 |
|
|
{
|
1018 |
|
|
int n;
|
1019 |
|
|
int fd = open ("/dev/urandom", O_RDONLY);
|
1020 |
|
|
if (fd < 0)
|
1021 |
|
|
return FALSE;
|
1022 |
|
|
n = read (fd, id_bits, size);
|
1023 |
|
|
close (fd);
|
1024 |
|
|
if (n < (int) size)
|
1025 |
|
|
return FALSE;
|
1026 |
|
|
}
|
1027 |
|
|
else if (!strncmp (info->style, "0x", 2))
|
1028 |
|
|
{
|
1029 |
|
|
/* ID is in string form (hex). Convert to bits. */
|
1030 |
|
|
const char *id = info->style + 2;
|
1031 |
|
|
size_t n = 0;
|
1032 |
|
|
do
|
1033 |
|
|
{
|
1034 |
|
|
if (ISXDIGIT (id[0]) && ISXDIGIT (id[1]))
|
1035 |
|
|
{
|
1036 |
|
|
id_bits[n] = read_hex (*id++) << 4;
|
1037 |
|
|
id_bits[n++] |= read_hex (*id++);
|
1038 |
|
|
}
|
1039 |
|
|
else if (*id == '-' || *id == ':')
|
1040 |
|
|
++id;
|
1041 |
|
|
else
|
1042 |
|
|
abort (); /* Should have been validated earlier. */
|
1043 |
|
|
} while (*id != '\0');
|
1044 |
|
|
}
|
1045 |
|
|
else
|
1046 |
|
|
abort (); /* Should have been validated earlier. */
|
1047 |
|
|
|
1048 |
|
|
size = asec->size;
|
1049 |
|
|
return (bfd_seek (abfd,
|
1050 |
|
|
i_shdr->sh_offset + asec->output_offset, SEEK_SET) == 0
|
1051 |
|
|
&& bfd_bwrite (contents, size, abfd) == size);
|
1052 |
|
|
}
|
1053 |
|
|
|
1054 |
|
|
|
1055 |
|
|
/* This is called after all the input files have been opened. */
|
1056 |
|
|
|
1057 |
|
|
static void
|
1058 |
|
|
gld${EMULATION_NAME}_after_open (void)
|
1059 |
|
|
{
|
1060 |
|
|
struct bfd_link_needed_list *needed, *l;
|
1061 |
|
|
struct elf_link_hash_table *htab;
|
1062 |
|
|
|
1063 |
|
|
after_open_default ();
|
1064 |
|
|
|
1065 |
|
|
htab = elf_hash_table (&link_info);
|
1066 |
|
|
if (!is_elf_hash_table (htab))
|
1067 |
|
|
return;
|
1068 |
|
|
|
1069 |
|
|
if (link_info.emit_note_gnu_build_id)
|
1070 |
|
|
{
|
1071 |
|
|
bfd *abfd;
|
1072 |
|
|
asection *s;
|
1073 |
|
|
bfd_size_type size;
|
1074 |
|
|
|
1075 |
|
|
/* Find an ELF input. */
|
1076 |
|
|
for (abfd = link_info.input_bfds;
|
1077 |
|
|
abfd != (bfd *) NULL; abfd = abfd->link_next)
|
1078 |
|
|
if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
|
1079 |
|
|
break;
|
1080 |
|
|
|
1081 |
|
|
if (abfd == NULL)
|
1082 |
|
|
{
|
1083 |
|
|
/* PR 10555: If there are no input files do not
|
1084 |
|
|
try to create a .note.gnu-build-id section. */
|
1085 |
|
|
free (link_info.emit_note_gnu_build_id);
|
1086 |
|
|
link_info.emit_note_gnu_build_id = NULL;
|
1087 |
|
|
}
|
1088 |
|
|
else
|
1089 |
|
|
{
|
1090 |
|
|
size = gld${EMULATION_NAME}_id_note_section_size (abfd, &link_info);
|
1091 |
|
|
if (size == 0)
|
1092 |
|
|
{
|
1093 |
|
|
einfo ("%P: warning: unrecognized --build-id style ignored.\n");
|
1094 |
|
|
free (link_info.emit_note_gnu_build_id);
|
1095 |
|
|
link_info.emit_note_gnu_build_id = NULL;
|
1096 |
|
|
}
|
1097 |
|
|
else
|
1098 |
|
|
{
|
1099 |
|
|
s = bfd_make_section_with_flags (abfd, ".note.gnu.build-id",
|
1100 |
|
|
SEC_ALLOC | SEC_LOAD
|
1101 |
|
|
| SEC_IN_MEMORY | SEC_LINKER_CREATED
|
1102 |
|
|
| SEC_READONLY | SEC_DATA);
|
1103 |
|
|
if (s != NULL && bfd_set_section_alignment (abfd, s, 2))
|
1104 |
|
|
{
|
1105 |
|
|
struct elf_obj_tdata *t = elf_tdata (link_info.output_bfd);
|
1106 |
|
|
struct build_id_info *b =
|
1107 |
|
|
(struct build_id_info *) xmalloc (sizeof *b);
|
1108 |
|
|
|
1109 |
|
|
b->style = link_info.emit_note_gnu_build_id;
|
1110 |
|
|
b->sec = s;
|
1111 |
|
|
elf_section_type (s) = SHT_NOTE;
|
1112 |
|
|
s->size = size;
|
1113 |
|
|
t->after_write_object_contents
|
1114 |
|
|
= &gld${EMULATION_NAME}_write_build_id_section;
|
1115 |
|
|
t->after_write_object_contents_info = b;
|
1116 |
|
|
}
|
1117 |
|
|
else
|
1118 |
|
|
{
|
1119 |
|
|
einfo ("%P: warning: Cannot create .note.gnu.build-id section,"
|
1120 |
|
|
" --build-id ignored.\n");
|
1121 |
|
|
free (link_info.emit_note_gnu_build_id);
|
1122 |
|
|
link_info.emit_note_gnu_build_id = NULL;
|
1123 |
|
|
}
|
1124 |
|
|
}
|
1125 |
|
|
}
|
1126 |
|
|
}
|
1127 |
|
|
|
1128 |
|
|
if (link_info.relocatable)
|
1129 |
|
|
return;
|
1130 |
|
|
|
1131 |
|
|
if (link_info.eh_frame_hdr
|
1132 |
|
|
&& !link_info.traditional_format)
|
1133 |
|
|
{
|
1134 |
|
|
bfd *abfd, *elfbfd = NULL;
|
1135 |
|
|
bfd_boolean warn_eh_frame = FALSE;
|
1136 |
|
|
asection *s;
|
1137 |
|
|
|
1138 |
|
|
for (abfd = link_info.input_bfds; abfd; abfd = abfd->link_next)
|
1139 |
|
|
{
|
1140 |
|
|
if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
|
1141 |
|
|
elfbfd = abfd;
|
1142 |
|
|
if (!warn_eh_frame)
|
1143 |
|
|
{
|
1144 |
|
|
s = bfd_get_section_by_name (abfd, ".eh_frame");
|
1145 |
|
|
warn_eh_frame
|
1146 |
|
|
= (s
|
1147 |
|
|
&& s->size > 8
|
1148 |
|
|
&& !bfd_is_abs_section (s->output_section));
|
1149 |
|
|
}
|
1150 |
|
|
if (elfbfd && warn_eh_frame)
|
1151 |
|
|
break;
|
1152 |
|
|
}
|
1153 |
|
|
if (elfbfd)
|
1154 |
|
|
{
|
1155 |
|
|
const struct elf_backend_data *bed;
|
1156 |
|
|
|
1157 |
|
|
bed = get_elf_backend_data (elfbfd);
|
1158 |
|
|
s = bfd_make_section_with_flags (elfbfd, ".eh_frame_hdr",
|
1159 |
|
|
bed->dynamic_sec_flags
|
1160 |
|
|
| SEC_READONLY);
|
1161 |
|
|
if (s != NULL
|
1162 |
|
|
&& bfd_set_section_alignment (elfbfd, s, 2))
|
1163 |
|
|
{
|
1164 |
|
|
htab->eh_info.hdr_sec = s;
|
1165 |
|
|
warn_eh_frame = FALSE;
|
1166 |
|
|
}
|
1167 |
|
|
}
|
1168 |
|
|
if (warn_eh_frame)
|
1169 |
|
|
einfo ("%P: warning: Cannot create .eh_frame_hdr section,"
|
1170 |
|
|
" --eh-frame-hdr ignored.\n");
|
1171 |
|
|
}
|
1172 |
|
|
|
1173 |
|
|
/* Get the list of files which appear in DT_NEEDED entries in
|
1174 |
|
|
dynamic objects included in the link (often there will be none).
|
1175 |
|
|
For each such file, we want to track down the corresponding
|
1176 |
|
|
library, and include the symbol table in the link. This is what
|
1177 |
|
|
the runtime dynamic linker will do. Tracking the files down here
|
1178 |
|
|
permits one dynamic object to include another without requiring
|
1179 |
|
|
special action by the person doing the link. Note that the
|
1180 |
|
|
needed list can actually grow while we are stepping through this
|
1181 |
|
|
loop. */
|
1182 |
|
|
if (!link_info.executable)
|
1183 |
|
|
return;
|
1184 |
|
|
needed = bfd_elf_get_needed_list (link_info.output_bfd, &link_info);
|
1185 |
|
|
for (l = needed; l != NULL; l = l->next)
|
1186 |
|
|
{
|
1187 |
|
|
struct bfd_link_needed_list *ll;
|
1188 |
|
|
struct dt_needed n, nn;
|
1189 |
|
|
int force;
|
1190 |
|
|
|
1191 |
|
|
/* If the lib that needs this one was --as-needed and wasn't
|
1192 |
|
|
found to be needed, then this lib isn't needed either. */
|
1193 |
|
|
if (l->by != NULL
|
1194 |
|
|
&& (bfd_elf_get_dyn_lib_class (l->by) & DYN_AS_NEEDED) != 0)
|
1195 |
|
|
continue;
|
1196 |
|
|
|
1197 |
|
|
/* If we've already seen this file, skip it. */
|
1198 |
|
|
for (ll = needed; ll != l; ll = ll->next)
|
1199 |
|
|
if ((ll->by == NULL
|
1200 |
|
|
|| (bfd_elf_get_dyn_lib_class (ll->by) & DYN_AS_NEEDED) == 0)
|
1201 |
|
|
&& strcmp (ll->name, l->name) == 0)
|
1202 |
|
|
break;
|
1203 |
|
|
if (ll != l)
|
1204 |
|
|
continue;
|
1205 |
|
|
|
1206 |
|
|
/* See if this file was included in the link explicitly. */
|
1207 |
|
|
global_needed = l;
|
1208 |
|
|
global_found = NULL;
|
1209 |
|
|
lang_for_each_input_file (gld${EMULATION_NAME}_check_needed);
|
1210 |
|
|
if (global_found != NULL
|
1211 |
|
|
&& (bfd_elf_get_dyn_lib_class (global_found->the_bfd)
|
1212 |
|
|
& DYN_AS_NEEDED) == 0)
|
1213 |
|
|
continue;
|
1214 |
|
|
|
1215 |
|
|
n.by = l->by;
|
1216 |
|
|
n.name = l->name;
|
1217 |
|
|
nn.by = l->by;
|
1218 |
|
|
if (trace_file_tries)
|
1219 |
|
|
info_msg (_("%s needed by %B\n"), l->name, l->by);
|
1220 |
|
|
|
1221 |
|
|
/* As-needed libs specified on the command line (or linker script)
|
1222 |
|
|
take priority over libs found in search dirs. */
|
1223 |
|
|
if (global_found != NULL)
|
1224 |
|
|
{
|
1225 |
|
|
nn.name = global_found->filename;
|
1226 |
|
|
if (gld${EMULATION_NAME}_try_needed (&nn, TRUE))
|
1227 |
|
|
continue;
|
1228 |
|
|
}
|
1229 |
|
|
|
1230 |
|
|
/* We need to find this file and include the symbol table. We
|
1231 |
|
|
want to search for the file in the same way that the dynamic
|
1232 |
|
|
linker will search. That means that we want to use
|
1233 |
|
|
rpath_link, rpath, then the environment variable
|
1234 |
|
|
LD_LIBRARY_PATH (native only), then the DT_RPATH/DT_RUNPATH
|
1235 |
|
|
entries (native only), then the linker script LIB_SEARCH_DIRS.
|
1236 |
|
|
We do not search using the -L arguments.
|
1237 |
|
|
|
1238 |
|
|
We search twice. The first time, we skip objects which may
|
1239 |
|
|
introduce version mismatches. The second time, we force
|
1240 |
|
|
their use. See gld${EMULATION_NAME}_vercheck comment. */
|
1241 |
|
|
for (force = 0; force < 2; force++)
|
1242 |
|
|
{
|
1243 |
|
|
size_t len;
|
1244 |
|
|
search_dirs_type *search;
|
1245 |
|
|
EOF
|
1246 |
|
|
if [ "x${NATIVE}" = xyes ] ; then
|
1247 |
|
|
fragment <
|
1248 |
|
|
const char *lib_path;
|
1249 |
|
|
EOF
|
1250 |
|
|
fi
|
1251 |
|
|
if [ "x${USE_LIBPATH}" = xyes ] ; then
|
1252 |
|
|
fragment <
|
1253 |
|
|
struct bfd_link_needed_list *rp;
|
1254 |
|
|
int found;
|
1255 |
|
|
EOF
|
1256 |
|
|
fi
|
1257 |
|
|
fragment <
|
1258 |
|
|
|
1259 |
|
|
if (gld${EMULATION_NAME}_search_needed (command_line.rpath_link,
|
1260 |
|
|
&n, force))
|
1261 |
|
|
break;
|
1262 |
|
|
EOF
|
1263 |
|
|
if [ "x${USE_LIBPATH}" = xyes ] ; then
|
1264 |
|
|
fragment <
|
1265 |
|
|
if (gld${EMULATION_NAME}_search_needed (command_line.rpath,
|
1266 |
|
|
&n, force))
|
1267 |
|
|
break;
|
1268 |
|
|
EOF
|
1269 |
|
|
fi
|
1270 |
|
|
if [ "x${NATIVE}" = xyes ] ; then
|
1271 |
|
|
fragment <
|
1272 |
|
|
if (command_line.rpath_link == NULL
|
1273 |
|
|
&& command_line.rpath == NULL)
|
1274 |
|
|
{
|
1275 |
|
|
lib_path = (const char *) getenv ("LD_RUN_PATH");
|
1276 |
|
|
if (gld${EMULATION_NAME}_search_needed (lib_path, &n,
|
1277 |
|
|
force))
|
1278 |
|
|
break;
|
1279 |
|
|
}
|
1280 |
|
|
lib_path = (const char *) getenv ("LD_LIBRARY_PATH");
|
1281 |
|
|
if (gld${EMULATION_NAME}_search_needed (lib_path, &n, force))
|
1282 |
|
|
break;
|
1283 |
|
|
EOF
|
1284 |
|
|
fi
|
1285 |
|
|
if [ "x${USE_LIBPATH}" = xyes ] ; then
|
1286 |
|
|
fragment <
|
1287 |
|
|
found = 0;
|
1288 |
|
|
rp = bfd_elf_get_runpath_list (link_info.output_bfd, &link_info);
|
1289 |
|
|
for (; !found && rp != NULL; rp = rp->next)
|
1290 |
|
|
{
|
1291 |
|
|
char *tmpname = gld${EMULATION_NAME}_add_sysroot (rp->name);
|
1292 |
|
|
found = (rp->by == l->by
|
1293 |
|
|
&& gld${EMULATION_NAME}_search_needed (tmpname,
|
1294 |
|
|
&n,
|
1295 |
|
|
force));
|
1296 |
|
|
free (tmpname);
|
1297 |
|
|
}
|
1298 |
|
|
if (found)
|
1299 |
|
|
break;
|
1300 |
|
|
|
1301 |
|
|
EOF
|
1302 |
|
|
fi
|
1303 |
|
|
if [ "x${USE_LIBPATH}" = xyes ] ; then
|
1304 |
|
|
case ${target} in
|
1305 |
|
|
*-*-freebsd* | *-*-dragonfly*)
|
1306 |
|
|
fragment <
|
1307 |
|
|
if (gld${EMULATION_NAME}_check_ld_elf_hints (l->name, force))
|
1308 |
|
|
break;
|
1309 |
|
|
EOF
|
1310 |
|
|
# FreeBSD
|
1311 |
|
|
;;
|
1312 |
|
|
|
1313 |
|
|
*-*-linux-* | *-*-k*bsd*-*)
|
1314 |
|
|
# Linux
|
1315 |
|
|
fragment <
|
1316 |
|
|
if (gld${EMULATION_NAME}_check_ld_so_conf (l->name, force))
|
1317 |
|
|
break;
|
1318 |
|
|
|
1319 |
|
|
EOF
|
1320 |
|
|
;;
|
1321 |
|
|
esac
|
1322 |
|
|
fi
|
1323 |
|
|
fragment <
|
1324 |
|
|
len = strlen (l->name);
|
1325 |
|
|
for (search = search_head; search != NULL; search = search->next)
|
1326 |
|
|
{
|
1327 |
|
|
char *filename;
|
1328 |
|
|
|
1329 |
|
|
if (search->cmdline)
|
1330 |
|
|
continue;
|
1331 |
|
|
filename = (char *) xmalloc (strlen (search->name) + len + 2);
|
1332 |
|
|
sprintf (filename, "%s/%s", search->name, l->name);
|
1333 |
|
|
nn.name = filename;
|
1334 |
|
|
if (gld${EMULATION_NAME}_try_needed (&nn, force))
|
1335 |
|
|
break;
|
1336 |
|
|
free (filename);
|
1337 |
|
|
}
|
1338 |
|
|
if (search != NULL)
|
1339 |
|
|
break;
|
1340 |
|
|
EOF
|
1341 |
|
|
fragment <
|
1342 |
|
|
}
|
1343 |
|
|
|
1344 |
|
|
if (force < 2)
|
1345 |
|
|
continue;
|
1346 |
|
|
|
1347 |
|
|
einfo ("%P: warning: %s, needed by %B, not found (try using -rpath or -rpath-link)\n",
|
1348 |
|
|
l->name, l->by);
|
1349 |
|
|
}
|
1350 |
|
|
}
|
1351 |
|
|
|
1352 |
|
|
EOF
|
1353 |
|
|
fi
|
1354 |
|
|
|
1355 |
|
|
fragment <
|
1356 |
|
|
|
1357 |
|
|
/* Look through an expression for an assignment statement. */
|
1358 |
|
|
|
1359 |
|
|
static void
|
1360 |
|
|
gld${EMULATION_NAME}_find_exp_assignment (etree_type *exp)
|
1361 |
|
|
{
|
1362 |
|
|
bfd_boolean provide = FALSE;
|
1363 |
|
|
|
1364 |
|
|
switch (exp->type.node_class)
|
1365 |
|
|
{
|
1366 |
|
|
case etree_provide:
|
1367 |
|
|
case etree_provided:
|
1368 |
|
|
provide = TRUE;
|
1369 |
|
|
/* Fall thru */
|
1370 |
|
|
case etree_assign:
|
1371 |
|
|
/* We call record_link_assignment even if the symbol is defined.
|
1372 |
|
|
This is because if it is defined by a dynamic object, we
|
1373 |
|
|
actually want to use the value defined by the linker script,
|
1374 |
|
|
not the value from the dynamic object (because we are setting
|
1375 |
|
|
symbols like etext). If the symbol is defined by a regular
|
1376 |
|
|
object, then, as it happens, calling record_link_assignment
|
1377 |
|
|
will do no harm. */
|
1378 |
|
|
if (strcmp (exp->assign.dst, ".") != 0)
|
1379 |
|
|
{
|
1380 |
|
|
if (!bfd_elf_record_link_assignment (link_info.output_bfd,
|
1381 |
|
|
&link_info,
|
1382 |
|
|
exp->assign.dst, provide,
|
1383 |
|
|
exp->assign.hidden))
|
1384 |
|
|
einfo ("%P%F: failed to record assignment to %s: %E\n",
|
1385 |
|
|
exp->assign.dst);
|
1386 |
|
|
}
|
1387 |
|
|
gld${EMULATION_NAME}_find_exp_assignment (exp->assign.src);
|
1388 |
|
|
break;
|
1389 |
|
|
|
1390 |
|
|
case etree_binary:
|
1391 |
|
|
gld${EMULATION_NAME}_find_exp_assignment (exp->binary.lhs);
|
1392 |
|
|
gld${EMULATION_NAME}_find_exp_assignment (exp->binary.rhs);
|
1393 |
|
|
break;
|
1394 |
|
|
|
1395 |
|
|
case etree_trinary:
|
1396 |
|
|
gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.cond);
|
1397 |
|
|
gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.lhs);
|
1398 |
|
|
gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.rhs);
|
1399 |
|
|
break;
|
1400 |
|
|
|
1401 |
|
|
case etree_unary:
|
1402 |
|
|
gld${EMULATION_NAME}_find_exp_assignment (exp->unary.child);
|
1403 |
|
|
break;
|
1404 |
|
|
|
1405 |
|
|
default:
|
1406 |
|
|
break;
|
1407 |
|
|
}
|
1408 |
|
|
}
|
1409 |
|
|
|
1410 |
|
|
|
1411 |
|
|
/* This is called by the before_allocation routine via
|
1412 |
|
|
lang_for_each_statement. It locates any assignment statements, and
|
1413 |
|
|
tells the ELF backend about them, in case they are assignments to
|
1414 |
|
|
symbols which are referred to by dynamic objects. */
|
1415 |
|
|
|
1416 |
|
|
static void
|
1417 |
|
|
gld${EMULATION_NAME}_find_statement_assignment (lang_statement_union_type *s)
|
1418 |
|
|
{
|
1419 |
|
|
if (s->header.type == lang_assignment_statement_enum)
|
1420 |
|
|
gld${EMULATION_NAME}_find_exp_assignment (s->assignment_statement.exp);
|
1421 |
|
|
}
|
1422 |
|
|
|
1423 |
|
|
EOF
|
1424 |
|
|
|
1425 |
|
|
if test x"$LDEMUL_BEFORE_ALLOCATION" != xgld"$EMULATION_NAME"_before_allocation; then
|
1426 |
|
|
if test x"${ELF_INTERPRETER_NAME+set}" = xset; then
|
1427 |
|
|
ELF_INTERPRETER_SET_DEFAULT="
|
1428 |
|
|
if (sinterp != NULL)
|
1429 |
|
|
{
|
1430 |
|
|
sinterp->contents = (unsigned char *) ${ELF_INTERPRETER_NAME};
|
1431 |
|
|
sinterp->size = strlen ((char *) sinterp->contents) + 1;
|
1432 |
|
|
}
|
1433 |
|
|
|
1434 |
|
|
"
|
1435 |
|
|
else
|
1436 |
|
|
ELF_INTERPRETER_SET_DEFAULT=
|
1437 |
|
|
fi
|
1438 |
|
|
fragment <
|
1439 |
|
|
|
1440 |
|
|
/* used by before_allocation and handle_option. */
|
1441 |
|
|
static void
|
1442 |
|
|
gld${EMULATION_NAME}_append_to_separated_string (char **to, char *op_arg)
|
1443 |
|
|
{
|
1444 |
|
|
if (*to == NULL)
|
1445 |
|
|
*to = xstrdup (op_arg);
|
1446 |
|
|
else
|
1447 |
|
|
{
|
1448 |
|
|
size_t to_len = strlen (*to);
|
1449 |
|
|
size_t op_arg_len = strlen (op_arg);
|
1450 |
|
|
char *buf;
|
1451 |
|
|
char *cp = *to;
|
1452 |
|
|
|
1453 |
|
|
/* First see whether OPTARG is already in the path. */
|
1454 |
|
|
do
|
1455 |
|
|
{
|
1456 |
|
|
if (strncmp (op_arg, cp, op_arg_len) == 0
|
1457 |
|
|
&& (cp[op_arg_len] == 0
|
1458 |
|
|
|| cp[op_arg_len] == config.rpath_separator))
|
1459 |
|
|
/* We found it. */
|
1460 |
|
|
break;
|
1461 |
|
|
|
1462 |
|
|
/* Not yet found. */
|
1463 |
|
|
cp = strchr (cp, config.rpath_separator);
|
1464 |
|
|
if (cp != NULL)
|
1465 |
|
|
++cp;
|
1466 |
|
|
}
|
1467 |
|
|
while (cp != NULL);
|
1468 |
|
|
|
1469 |
|
|
if (cp == NULL)
|
1470 |
|
|
{
|
1471 |
|
|
buf = xmalloc (to_len + op_arg_len + 2);
|
1472 |
|
|
sprintf (buf, "%s%c%s", *to,
|
1473 |
|
|
config.rpath_separator, op_arg);
|
1474 |
|
|
free (*to);
|
1475 |
|
|
*to = buf;
|
1476 |
|
|
}
|
1477 |
|
|
}
|
1478 |
|
|
}
|
1479 |
|
|
|
1480 |
|
|
/* This is called after the sections have been attached to output
|
1481 |
|
|
sections, but before any sizes or addresses have been set. */
|
1482 |
|
|
|
1483 |
|
|
static void
|
1484 |
|
|
gld${EMULATION_NAME}_before_allocation (void)
|
1485 |
|
|
{
|
1486 |
|
|
const char *rpath;
|
1487 |
|
|
asection *sinterp;
|
1488 |
|
|
bfd *abfd;
|
1489 |
|
|
|
1490 |
|
|
if (link_info.hash->type == bfd_link_elf_hash_table)
|
1491 |
|
|
_bfd_elf_tls_setup (link_info.output_bfd, &link_info);
|
1492 |
|
|
|
1493 |
|
|
/* If we are going to make any variable assignments, we need to let
|
1494 |
|
|
the ELF backend know about them in case the variables are
|
1495 |
|
|
referred to by dynamic objects. */
|
1496 |
|
|
lang_for_each_statement (gld${EMULATION_NAME}_find_statement_assignment);
|
1497 |
|
|
|
1498 |
|
|
/* Let the ELF backend work out the sizes of any sections required
|
1499 |
|
|
by dynamic linking. */
|
1500 |
|
|
rpath = command_line.rpath;
|
1501 |
|
|
if (rpath == NULL)
|
1502 |
|
|
rpath = (const char *) getenv ("LD_RUN_PATH");
|
1503 |
|
|
|
1504 |
|
|
for (abfd = link_info.input_bfds; abfd; abfd = abfd->link_next)
|
1505 |
|
|
if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
|
1506 |
|
|
{
|
1507 |
|
|
const char *audit_libs = elf_dt_audit (abfd);
|
1508 |
|
|
|
1509 |
|
|
/* If the input bfd contains an audit entry, we need to add it as
|
1510 |
|
|
a dep audit entry. */
|
1511 |
|
|
if (audit_libs && *audit_libs != '\0')
|
1512 |
|
|
{
|
1513 |
|
|
char *cp = xstrdup (audit_libs);
|
1514 |
|
|
do
|
1515 |
|
|
{
|
1516 |
|
|
int more = 0;
|
1517 |
|
|
char *cp2 = strchr (cp, config.rpath_separator);
|
1518 |
|
|
|
1519 |
|
|
if (cp2)
|
1520 |
|
|
{
|
1521 |
|
|
*cp2 = '\0';
|
1522 |
|
|
more = 1;
|
1523 |
|
|
}
|
1524 |
|
|
|
1525 |
|
|
if (cp != NULL && *cp != '\0')
|
1526 |
|
|
gld${EMULATION_NAME}_append_to_separated_string (&depaudit, cp);
|
1527 |
|
|
|
1528 |
|
|
cp = more ? ++cp2 : NULL;
|
1529 |
|
|
}
|
1530 |
|
|
while (cp != NULL);
|
1531 |
|
|
}
|
1532 |
|
|
}
|
1533 |
|
|
|
1534 |
|
|
if (! (bfd_elf_size_dynamic_sections
|
1535 |
|
|
(link_info.output_bfd, command_line.soname, rpath,
|
1536 |
|
|
command_line.filter_shlib, audit, depaudit,
|
1537 |
|
|
(const char * const *) command_line.auxiliary_filters,
|
1538 |
|
|
&link_info, &sinterp, lang_elf_version_info)))
|
1539 |
|
|
einfo ("%P%F: failed to set dynamic section sizes: %E\n");
|
1540 |
|
|
|
1541 |
|
|
${ELF_INTERPRETER_SET_DEFAULT}
|
1542 |
|
|
/* Let the user override the dynamic linker we are using. */
|
1543 |
|
|
if (command_line.interpreter != NULL
|
1544 |
|
|
&& sinterp != NULL)
|
1545 |
|
|
{
|
1546 |
|
|
sinterp->contents = (bfd_byte *) command_line.interpreter;
|
1547 |
|
|
sinterp->size = strlen (command_line.interpreter) + 1;
|
1548 |
|
|
}
|
1549 |
|
|
|
1550 |
|
|
/* Look for any sections named .gnu.warning. As a GNU extensions,
|
1551 |
|
|
we treat such sections as containing warning messages. We print
|
1552 |
|
|
out the warning message, and then zero out the section size so
|
1553 |
|
|
that it does not get copied into the output file. */
|
1554 |
|
|
|
1555 |
|
|
{
|
1556 |
|
|
LANG_FOR_EACH_INPUT_STATEMENT (is)
|
1557 |
|
|
{
|
1558 |
|
|
asection *s;
|
1559 |
|
|
bfd_size_type sz;
|
1560 |
|
|
char *msg;
|
1561 |
|
|
bfd_boolean ret;
|
1562 |
|
|
|
1563 |
|
|
if (is->just_syms_flag)
|
1564 |
|
|
continue;
|
1565 |
|
|
|
1566 |
|
|
s = bfd_get_section_by_name (is->the_bfd, ".gnu.warning");
|
1567 |
|
|
if (s == NULL)
|
1568 |
|
|
continue;
|
1569 |
|
|
|
1570 |
|
|
sz = s->size;
|
1571 |
|
|
msg = (char *) xmalloc ((size_t) (sz + 1));
|
1572 |
|
|
if (! bfd_get_section_contents (is->the_bfd, s, msg,
|
1573 |
|
|
(file_ptr) 0, sz))
|
1574 |
|
|
einfo ("%F%B: Can't read contents of section .gnu.warning: %E\n",
|
1575 |
|
|
is->the_bfd);
|
1576 |
|
|
msg[sz] = '\0';
|
1577 |
|
|
ret = link_info.callbacks->warning (&link_info, msg,
|
1578 |
|
|
(const char *) NULL,
|
1579 |
|
|
is->the_bfd, (asection *) NULL,
|
1580 |
|
|
(bfd_vma) 0);
|
1581 |
|
|
ASSERT (ret);
|
1582 |
|
|
free (msg);
|
1583 |
|
|
|
1584 |
|
|
/* Clobber the section size, so that we don't waste space
|
1585 |
|
|
copying the warning into the output file. If we've already
|
1586 |
|
|
sized the output section, adjust its size. The adjustment
|
1587 |
|
|
is on rawsize because targets that size sections early will
|
1588 |
|
|
have called lang_reset_memory_regions after sizing. */
|
1589 |
|
|
if (s->output_section != NULL
|
1590 |
|
|
&& s->output_section->rawsize >= s->size)
|
1591 |
|
|
s->output_section->rawsize -= s->size;
|
1592 |
|
|
|
1593 |
|
|
s->size = 0;
|
1594 |
|
|
|
1595 |
|
|
/* Also set SEC_EXCLUDE, so that local symbols defined in the
|
1596 |
|
|
warning section don't get copied to the output. */
|
1597 |
|
|
s->flags |= SEC_EXCLUDE | SEC_KEEP;
|
1598 |
|
|
}
|
1599 |
|
|
}
|
1600 |
|
|
|
1601 |
|
|
before_allocation_default ();
|
1602 |
|
|
|
1603 |
|
|
if (!bfd_elf_size_dynsym_hash_dynstr (link_info.output_bfd, &link_info))
|
1604 |
|
|
einfo ("%P%F: failed to set dynamic section sizes: %E\n");
|
1605 |
|
|
}
|
1606 |
|
|
|
1607 |
|
|
EOF
|
1608 |
|
|
fi
|
1609 |
|
|
|
1610 |
|
|
if test x"$LDEMUL_OPEN_DYNAMIC_ARCHIVE" != xgld"$EMULATION_NAME"_open_dynamic_archive; then
|
1611 |
|
|
fragment <
|
1612 |
|
|
|
1613 |
|
|
/* Try to open a dynamic archive. This is where we know that ELF
|
1614 |
|
|
dynamic libraries have an extension of .so (or .sl on oddball systems
|
1615 |
|
|
like hpux). */
|
1616 |
|
|
|
1617 |
|
|
static bfd_boolean
|
1618 |
|
|
gld${EMULATION_NAME}_open_dynamic_archive
|
1619 |
|
|
(const char *arch, search_dirs_type *search, lang_input_statement_type *entry)
|
1620 |
|
|
{
|
1621 |
|
|
const char *filename;
|
1622 |
|
|
char *string;
|
1623 |
|
|
|
1624 |
|
|
if (! entry->maybe_archive)
|
1625 |
|
|
return FALSE;
|
1626 |
|
|
|
1627 |
|
|
filename = entry->filename;
|
1628 |
|
|
|
1629 |
|
|
/* This allocates a few bytes too many when EXTRA_SHLIB_EXTENSION
|
1630 |
|
|
is defined, but it does not seem worth the headache to optimize
|
1631 |
|
|
away those two bytes of space. */
|
1632 |
|
|
string = (char *) xmalloc (strlen (search->name)
|
1633 |
|
|
+ strlen (filename)
|
1634 |
|
|
+ strlen (arch)
|
1635 |
|
|
#ifdef EXTRA_SHLIB_EXTENSION
|
1636 |
|
|
+ strlen (EXTRA_SHLIB_EXTENSION)
|
1637 |
|
|
#endif
|
1638 |
|
|
+ sizeof "/lib.so");
|
1639 |
|
|
|
1640 |
|
|
sprintf (string, "%s/lib%s%s.so", search->name, filename, arch);
|
1641 |
|
|
|
1642 |
|
|
#ifdef EXTRA_SHLIB_EXTENSION
|
1643 |
|
|
/* Try the .so extension first. If that fails build a new filename
|
1644 |
|
|
using EXTRA_SHLIB_EXTENSION. */
|
1645 |
|
|
if (! ldfile_try_open_bfd (string, entry))
|
1646 |
|
|
{
|
1647 |
|
|
sprintf (string, "%s/lib%s%s%s", search->name,
|
1648 |
|
|
filename, arch, EXTRA_SHLIB_EXTENSION);
|
1649 |
|
|
#endif
|
1650 |
|
|
|
1651 |
|
|
if (! ldfile_try_open_bfd (string, entry))
|
1652 |
|
|
{
|
1653 |
|
|
free (string);
|
1654 |
|
|
return FALSE;
|
1655 |
|
|
}
|
1656 |
|
|
#ifdef EXTRA_SHLIB_EXTENSION
|
1657 |
|
|
}
|
1658 |
|
|
#endif
|
1659 |
|
|
|
1660 |
|
|
entry->filename = string;
|
1661 |
|
|
|
1662 |
|
|
/* We have found a dynamic object to include in the link. The ELF
|
1663 |
|
|
backend linker will create a DT_NEEDED entry in the .dynamic
|
1664 |
|
|
section naming this file. If this file includes a DT_SONAME
|
1665 |
|
|
entry, it will be used. Otherwise, the ELF linker will just use
|
1666 |
|
|
the name of the file. For an archive found by searching, like
|
1667 |
|
|
this one, the DT_NEEDED entry should consist of just the name of
|
1668 |
|
|
the file, without the path information used to find it. Note
|
1669 |
|
|
that we only need to do this if we have a dynamic object; an
|
1670 |
|
|
archive will never be referenced by a DT_NEEDED entry.
|
1671 |
|
|
|
1672 |
|
|
FIXME: This approach--using bfd_elf_set_dt_needed_name--is not
|
1673 |
|
|
very pretty. I haven't been able to think of anything that is
|
1674 |
|
|
pretty, though. */
|
1675 |
|
|
if (bfd_check_format (entry->the_bfd, bfd_object)
|
1676 |
|
|
&& (entry->the_bfd->flags & DYNAMIC) != 0)
|
1677 |
|
|
{
|
1678 |
|
|
ASSERT (entry->maybe_archive && entry->search_dirs_flag);
|
1679 |
|
|
|
1680 |
|
|
/* Rather than duplicating the logic above. Just use the
|
1681 |
|
|
filename we recorded earlier. */
|
1682 |
|
|
|
1683 |
|
|
filename = lbasename (entry->filename);
|
1684 |
|
|
bfd_elf_set_dt_needed_name (entry->the_bfd, filename);
|
1685 |
|
|
}
|
1686 |
|
|
|
1687 |
|
|
return TRUE;
|
1688 |
|
|
}
|
1689 |
|
|
|
1690 |
|
|
EOF
|
1691 |
|
|
fi
|
1692 |
|
|
|
1693 |
|
|
if test x"$LDEMUL_PLACE_ORPHAN" != xgld"$EMULATION_NAME"_place_orphan; then
|
1694 |
|
|
fragment <
|
1695 |
|
|
|
1696 |
|
|
/* A variant of lang_output_section_find used by place_orphan. */
|
1697 |
|
|
|
1698 |
|
|
static lang_output_section_statement_type *
|
1699 |
|
|
output_rel_find (asection *sec, int isdyn)
|
1700 |
|
|
{
|
1701 |
|
|
lang_output_section_statement_type *lookup;
|
1702 |
|
|
lang_output_section_statement_type *last = NULL;
|
1703 |
|
|
lang_output_section_statement_type *last_alloc = NULL;
|
1704 |
|
|
lang_output_section_statement_type *last_ro_alloc = NULL;
|
1705 |
|
|
lang_output_section_statement_type *last_rel = NULL;
|
1706 |
|
|
lang_output_section_statement_type *last_rel_alloc = NULL;
|
1707 |
|
|
int rela = sec->name[4] == 'a';
|
1708 |
|
|
|
1709 |
|
|
for (lookup = &lang_output_section_statement.head->output_section_statement;
|
1710 |
|
|
lookup != NULL;
|
1711 |
|
|
lookup = lookup->next)
|
1712 |
|
|
{
|
1713 |
|
|
if (lookup->constraint >= 0
|
1714 |
|
|
&& CONST_STRNEQ (lookup->name, ".rel"))
|
1715 |
|
|
{
|
1716 |
|
|
int lookrela = lookup->name[4] == 'a';
|
1717 |
|
|
|
1718 |
|
|
/* .rel.dyn must come before all other reloc sections, to suit
|
1719 |
|
|
GNU ld.so. */
|
1720 |
|
|
if (isdyn)
|
1721 |
|
|
break;
|
1722 |
|
|
|
1723 |
|
|
/* Don't place after .rel.plt as doing so results in wrong
|
1724 |
|
|
dynamic tags. */
|
1725 |
|
|
if (strcmp (".plt", lookup->name + 4 + lookrela) == 0)
|
1726 |
|
|
break;
|
1727 |
|
|
|
1728 |
|
|
if (rela == lookrela || last_rel == NULL)
|
1729 |
|
|
last_rel = lookup;
|
1730 |
|
|
if ((rela == lookrela || last_rel_alloc == NULL)
|
1731 |
|
|
&& lookup->bfd_section != NULL
|
1732 |
|
|
&& (lookup->bfd_section->flags & SEC_ALLOC) != 0)
|
1733 |
|
|
last_rel_alloc = lookup;
|
1734 |
|
|
}
|
1735 |
|
|
|
1736 |
|
|
last = lookup;
|
1737 |
|
|
if (lookup->bfd_section != NULL
|
1738 |
|
|
&& (lookup->bfd_section->flags & SEC_ALLOC) != 0)
|
1739 |
|
|
{
|
1740 |
|
|
last_alloc = lookup;
|
1741 |
|
|
if ((lookup->bfd_section->flags & SEC_READONLY) != 0)
|
1742 |
|
|
last_ro_alloc = lookup;
|
1743 |
|
|
}
|
1744 |
|
|
}
|
1745 |
|
|
|
1746 |
|
|
if (last_rel_alloc)
|
1747 |
|
|
return last_rel_alloc;
|
1748 |
|
|
|
1749 |
|
|
if (last_rel)
|
1750 |
|
|
return last_rel;
|
1751 |
|
|
|
1752 |
|
|
if (last_ro_alloc)
|
1753 |
|
|
return last_ro_alloc;
|
1754 |
|
|
|
1755 |
|
|
if (last_alloc)
|
1756 |
|
|
return last_alloc;
|
1757 |
|
|
|
1758 |
|
|
return last;
|
1759 |
|
|
}
|
1760 |
|
|
|
1761 |
|
|
/* Place an orphan section. We use this to put random SHF_ALLOC
|
1762 |
|
|
sections in the right segment. */
|
1763 |
|
|
|
1764 |
|
|
static lang_output_section_statement_type *
|
1765 |
|
|
gld${EMULATION_NAME}_place_orphan (asection *s,
|
1766 |
|
|
const char *secname,
|
1767 |
|
|
int constraint)
|
1768 |
|
|
{
|
1769 |
|
|
static struct orphan_save hold[] =
|
1770 |
|
|
{
|
1771 |
|
|
{ ".text",
|
1772 |
|
|
SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE,
|
1773 |
|
|
0, 0, 0, 0 },
|
1774 |
|
|
{ ".rodata",
|
1775 |
|
|
SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
|
1776 |
|
|
0, 0, 0, 0 },
|
1777 |
|
|
{ ".data",
|
1778 |
|
|
SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA,
|
1779 |
|
|
0, 0, 0, 0 },
|
1780 |
|
|
{ ".bss",
|
1781 |
|
|
SEC_ALLOC,
|
1782 |
|
|
0, 0, 0, 0 },
|
1783 |
|
|
{ 0,
|
1784 |
|
|
SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
|
1785 |
|
|
0, 0, 0, 0 },
|
1786 |
|
|
{ ".interp",
|
1787 |
|
|
SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
|
1788 |
|
|
0, 0, 0, 0 },
|
1789 |
|
|
{ ".sdata",
|
1790 |
|
|
SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_SMALL_DATA,
|
1791 |
|
|
0, 0, 0, 0 },
|
1792 |
|
|
{ ".comment",
|
1793 |
|
|
SEC_HAS_CONTENTS,
|
1794 |
|
|
0, 0, 0, 0 },
|
1795 |
|
|
};
|
1796 |
|
|
enum orphan_save_index
|
1797 |
|
|
{
|
1798 |
|
|
orphan_text = 0,
|
1799 |
|
|
orphan_rodata,
|
1800 |
|
|
orphan_data,
|
1801 |
|
|
orphan_bss,
|
1802 |
|
|
orphan_rel,
|
1803 |
|
|
orphan_interp,
|
1804 |
|
|
orphan_sdata,
|
1805 |
|
|
orphan_nonalloc
|
1806 |
|
|
};
|
1807 |
|
|
static int orphan_init_done = 0;
|
1808 |
|
|
struct orphan_save *place;
|
1809 |
|
|
lang_output_section_statement_type *after;
|
1810 |
|
|
lang_output_section_statement_type *os;
|
1811 |
|
|
lang_output_section_statement_type *match_by_name = NULL;
|
1812 |
|
|
int isdyn = 0;
|
1813 |
|
|
int iself = s->owner->xvec->flavour == bfd_target_elf_flavour;
|
1814 |
|
|
unsigned int sh_type = iself ? elf_section_type (s) : SHT_NULL;
|
1815 |
|
|
|
1816 |
|
|
if (! link_info.relocatable
|
1817 |
|
|
&& link_info.combreloc
|
1818 |
|
|
&& (s->flags & SEC_ALLOC))
|
1819 |
|
|
{
|
1820 |
|
|
if (iself)
|
1821 |
|
|
switch (sh_type)
|
1822 |
|
|
{
|
1823 |
|
|
case SHT_RELA:
|
1824 |
|
|
secname = ".rela.dyn";
|
1825 |
|
|
isdyn = 1;
|
1826 |
|
|
break;
|
1827 |
|
|
case SHT_REL:
|
1828 |
|
|
secname = ".rel.dyn";
|
1829 |
|
|
isdyn = 1;
|
1830 |
|
|
break;
|
1831 |
|
|
default:
|
1832 |
|
|
break;
|
1833 |
|
|
}
|
1834 |
|
|
else if (CONST_STRNEQ (secname, ".rel"))
|
1835 |
|
|
{
|
1836 |
|
|
secname = secname[4] == 'a' ? ".rela.dyn" : ".rel.dyn";
|
1837 |
|
|
isdyn = 1;
|
1838 |
|
|
}
|
1839 |
|
|
}
|
1840 |
|
|
|
1841 |
|
|
/* Look through the script to see where to place this section. */
|
1842 |
|
|
if (constraint == 0)
|
1843 |
|
|
for (os = lang_output_section_find (secname);
|
1844 |
|
|
os != NULL;
|
1845 |
|
|
os = next_matching_output_section_statement (os, 0))
|
1846 |
|
|
{
|
1847 |
|
|
/* If we don't match an existing output section, tell
|
1848 |
|
|
lang_insert_orphan to create a new output section. */
|
1849 |
|
|
constraint = SPECIAL;
|
1850 |
|
|
|
1851 |
|
|
if (os->bfd_section != NULL
|
1852 |
|
|
&& (os->bfd_section->flags == 0
|
1853 |
|
|
|| (_bfd_elf_match_sections_by_type (link_info.output_bfd,
|
1854 |
|
|
os->bfd_section,
|
1855 |
|
|
s->owner, s)
|
1856 |
|
|
&& ((s->flags ^ os->bfd_section->flags)
|
1857 |
|
|
& (SEC_LOAD | SEC_ALLOC)) == 0)))
|
1858 |
|
|
{
|
1859 |
|
|
/* We already have an output section statement with this
|
1860 |
|
|
name, and its bfd section has compatible flags.
|
1861 |
|
|
If the section already exists but does not have any flags
|
1862 |
|
|
set, then it has been created by the linker, probably as a
|
1863 |
|
|
result of a --section-start command line switch. */
|
1864 |
|
|
lang_add_section (&os->children, s, os);
|
1865 |
|
|
return os;
|
1866 |
|
|
}
|
1867 |
|
|
|
1868 |
|
|
/* Save unused output sections in case we can match them
|
1869 |
|
|
against orphans later. */
|
1870 |
|
|
if (os->bfd_section == NULL)
|
1871 |
|
|
match_by_name = os;
|
1872 |
|
|
}
|
1873 |
|
|
|
1874 |
|
|
/* If we didn't match an active output section, see if we matched an
|
1875 |
|
|
unused one and use that. */
|
1876 |
|
|
if (match_by_name)
|
1877 |
|
|
{
|
1878 |
|
|
lang_add_section (&match_by_name->children, s, match_by_name);
|
1879 |
|
|
return match_by_name;
|
1880 |
|
|
}
|
1881 |
|
|
|
1882 |
|
|
if (!orphan_init_done)
|
1883 |
|
|
{
|
1884 |
|
|
struct orphan_save *ho;
|
1885 |
|
|
|
1886 |
|
|
for (ho = hold; ho < hold + sizeof (hold) / sizeof (hold[0]); ++ho)
|
1887 |
|
|
if (ho->name != NULL)
|
1888 |
|
|
{
|
1889 |
|
|
ho->os = lang_output_section_find (ho->name);
|
1890 |
|
|
if (ho->os != NULL && ho->os->flags == 0)
|
1891 |
|
|
ho->os->flags = ho->flags;
|
1892 |
|
|
}
|
1893 |
|
|
orphan_init_done = 1;
|
1894 |
|
|
}
|
1895 |
|
|
|
1896 |
|
|
/* If this is a final link, then always put .gnu.warning.SYMBOL
|
1897 |
|
|
sections into the .text section to get them out of the way. */
|
1898 |
|
|
if (link_info.executable
|
1899 |
|
|
&& ! link_info.relocatable
|
1900 |
|
|
&& CONST_STRNEQ (s->name, ".gnu.warning.")
|
1901 |
|
|
&& hold[orphan_text].os != NULL)
|
1902 |
|
|
{
|
1903 |
|
|
os = hold[orphan_text].os;
|
1904 |
|
|
lang_add_section (&os->children, s, os);
|
1905 |
|
|
return os;
|
1906 |
|
|
}
|
1907 |
|
|
|
1908 |
|
|
/* Decide which segment the section should go in based on the
|
1909 |
|
|
section name and section flags. We put loadable .note sections
|
1910 |
|
|
right after the .interp section, so that the PT_NOTE segment is
|
1911 |
|
|
stored right after the program headers where the OS can read it
|
1912 |
|
|
in the first page. */
|
1913 |
|
|
|
1914 |
|
|
place = NULL;
|
1915 |
|
|
if ((s->flags & (SEC_ALLOC | SEC_DEBUGGING)) == 0)
|
1916 |
|
|
place = &hold[orphan_nonalloc];
|
1917 |
|
|
else if ((s->flags & SEC_ALLOC) == 0)
|
1918 |
|
|
;
|
1919 |
|
|
else if ((s->flags & SEC_LOAD) != 0
|
1920 |
|
|
&& ((iself && sh_type == SHT_NOTE)
|
1921 |
|
|
|| (!iself && CONST_STRNEQ (secname, ".note"))))
|
1922 |
|
|
place = &hold[orphan_interp];
|
1923 |
|
|
else if ((s->flags & (SEC_LOAD | SEC_HAS_CONTENTS | SEC_THREAD_LOCAL)) == 0)
|
1924 |
|
|
place = &hold[orphan_bss];
|
1925 |
|
|
else if ((s->flags & SEC_SMALL_DATA) != 0)
|
1926 |
|
|
place = &hold[orphan_sdata];
|
1927 |
|
|
else if ((s->flags & SEC_READONLY) == 0)
|
1928 |
|
|
place = &hold[orphan_data];
|
1929 |
|
|
else if (((iself && (sh_type == SHT_RELA || sh_type == SHT_REL))
|
1930 |
|
|
|| (!iself && CONST_STRNEQ (secname, ".rel")))
|
1931 |
|
|
&& (s->flags & SEC_LOAD) != 0)
|
1932 |
|
|
place = &hold[orphan_rel];
|
1933 |
|
|
else if ((s->flags & SEC_CODE) == 0)
|
1934 |
|
|
place = &hold[orphan_rodata];
|
1935 |
|
|
else
|
1936 |
|
|
place = &hold[orphan_text];
|
1937 |
|
|
|
1938 |
|
|
after = NULL;
|
1939 |
|
|
if (place != NULL)
|
1940 |
|
|
{
|
1941 |
|
|
if (place->os == NULL)
|
1942 |
|
|
{
|
1943 |
|
|
if (place->name != NULL)
|
1944 |
|
|
place->os = lang_output_section_find (place->name);
|
1945 |
|
|
else
|
1946 |
|
|
place->os = output_rel_find (s, isdyn);
|
1947 |
|
|
}
|
1948 |
|
|
after = place->os;
|
1949 |
|
|
if (after == NULL)
|
1950 |
|
|
after = lang_output_section_find_by_flags
|
1951 |
|
|
(s, &place->os, _bfd_elf_match_sections_by_type);
|
1952 |
|
|
if (after == NULL)
|
1953 |
|
|
/* *ABS* is always the first output section statement. */
|
1954 |
|
|
after = &lang_output_section_statement.head->output_section_statement;
|
1955 |
|
|
}
|
1956 |
|
|
|
1957 |
|
|
return lang_insert_orphan (s, secname, constraint, after, place, NULL, NULL);
|
1958 |
|
|
}
|
1959 |
|
|
EOF
|
1960 |
|
|
fi
|
1961 |
|
|
|
1962 |
|
|
if test x"$LDEMUL_AFTER_ALLOCATION" != xgld"$EMULATION_NAME"_after_allocation; then
|
1963 |
|
|
fragment <
|
1964 |
|
|
|
1965 |
|
|
static void
|
1966 |
|
|
gld${EMULATION_NAME}_after_allocation (void)
|
1967 |
|
|
{
|
1968 |
|
|
bfd_boolean need_layout = bfd_elf_discard_info (link_info.output_bfd,
|
1969 |
|
|
&link_info);
|
1970 |
|
|
gld${EMULATION_NAME}_map_segments (need_layout);
|
1971 |
|
|
}
|
1972 |
|
|
EOF
|
1973 |
|
|
fi
|
1974 |
|
|
|
1975 |
|
|
if test x"$LDEMUL_GET_SCRIPT" != xgld"$EMULATION_NAME"_get_script; then
|
1976 |
|
|
fragment <
|
1977 |
|
|
|
1978 |
|
|
static char *
|
1979 |
|
|
gld${EMULATION_NAME}_get_script (int *isfile)
|
1980 |
|
|
EOF
|
1981 |
|
|
|
1982 |
|
|
if test -n "$COMPILE_IN"
|
1983 |
|
|
then
|
1984 |
|
|
# Scripts compiled in.
|
1985 |
|
|
|
1986 |
|
|
# sed commands to quote an ld script as a C string.
|
1987 |
|
|
sc="-f stringify.sed"
|
1988 |
|
|
|
1989 |
|
|
fragment <
|
1990 |
|
|
{
|
1991 |
|
|
*isfile = 0;
|
1992 |
|
|
|
1993 |
|
|
if (link_info.relocatable && config.build_constructors)
|
1994 |
|
|
return
|
1995 |
|
|
EOF
|
1996 |
|
|
sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
|
1997 |
|
|
echo ' ; else if (link_info.relocatable) return' >> e${EMULATION_NAME}.c
|
1998 |
|
|
sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
|
1999 |
|
|
echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
|
2000 |
|
|
sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
|
2001 |
|
|
if cmp -s ldscripts/${EMULATION_NAME}.x ldscripts/${EMULATION_NAME}.xn; then : ; else
|
2002 |
|
|
echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
|
2003 |
|
|
sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
|
2004 |
|
|
fi
|
2005 |
|
|
if test -n "$GENERATE_PIE_SCRIPT" ; then
|
2006 |
|
|
if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
|
2007 |
|
|
echo ' ; else if (link_info.pie && link_info.combreloc' >> e${EMULATION_NAME}.c
|
2008 |
|
|
echo ' && link_info.relro' >> e${EMULATION_NAME}.c
|
2009 |
|
|
echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
|
2010 |
|
|
sed $sc ldscripts/${EMULATION_NAME}.xdw >> e${EMULATION_NAME}.c
|
2011 |
|
|
echo ' ; else if (link_info.pie && link_info.combreloc) return' >> e${EMULATION_NAME}.c
|
2012 |
|
|
sed $sc ldscripts/${EMULATION_NAME}.xdc >> e${EMULATION_NAME}.c
|
2013 |
|
|
fi
|
2014 |
|
|
echo ' ; else if (link_info.pie) return' >> e${EMULATION_NAME}.c
|
2015 |
|
|
sed $sc ldscripts/${EMULATION_NAME}.xd >> e${EMULATION_NAME}.c
|
2016 |
|
|
fi
|
2017 |
|
|
if test -n "$GENERATE_SHLIB_SCRIPT" ; then
|
2018 |
|
|
if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
|
2019 |
|
|
echo ' ; else if (link_info.shared && link_info.combreloc' >> e${EMULATION_NAME}.c
|
2020 |
|
|
echo ' && link_info.relro' >> e${EMULATION_NAME}.c
|
2021 |
|
|
echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
|
2022 |
|
|
sed $sc ldscripts/${EMULATION_NAME}.xsw >> e${EMULATION_NAME}.c
|
2023 |
|
|
echo ' ; else if (link_info.shared && link_info.combreloc) return' >> e${EMULATION_NAME}.c
|
2024 |
|
|
sed $sc ldscripts/${EMULATION_NAME}.xsc >> e${EMULATION_NAME}.c
|
2025 |
|
|
fi
|
2026 |
|
|
echo ' ; else if (link_info.shared) return' >> e${EMULATION_NAME}.c
|
2027 |
|
|
sed $sc ldscripts/${EMULATION_NAME}.xs >> e${EMULATION_NAME}.c
|
2028 |
|
|
fi
|
2029 |
|
|
if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
|
2030 |
|
|
echo ' ; else if (link_info.combreloc && link_info.relro' >> e${EMULATION_NAME}.c
|
2031 |
|
|
echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
|
2032 |
|
|
sed $sc ldscripts/${EMULATION_NAME}.xw >> e${EMULATION_NAME}.c
|
2033 |
|
|
echo ' ; else if (link_info.combreloc) return' >> e${EMULATION_NAME}.c
|
2034 |
|
|
sed $sc ldscripts/${EMULATION_NAME}.xc >> e${EMULATION_NAME}.c
|
2035 |
|
|
fi
|
2036 |
|
|
echo ' ; else return' >> e${EMULATION_NAME}.c
|
2037 |
|
|
sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
|
2038 |
|
|
echo '; }' >> e${EMULATION_NAME}.c
|
2039 |
|
|
|
2040 |
|
|
else
|
2041 |
|
|
# Scripts read from the filesystem.
|
2042 |
|
|
|
2043 |
|
|
fragment <
|
2044 |
|
|
{
|
2045 |
|
|
*isfile = 1;
|
2046 |
|
|
|
2047 |
|
|
if (link_info.relocatable && config.build_constructors)
|
2048 |
|
|
return "ldscripts/${EMULATION_NAME}.xu";
|
2049 |
|
|
else if (link_info.relocatable)
|
2050 |
|
|
return "ldscripts/${EMULATION_NAME}.xr";
|
2051 |
|
|
else if (!config.text_read_only)
|
2052 |
|
|
return "ldscripts/${EMULATION_NAME}.xbn";
|
2053 |
|
|
EOF
|
2054 |
|
|
if cmp -s ldscripts/${EMULATION_NAME}.x ldscripts/${EMULATION_NAME}.xn; then :
|
2055 |
|
|
else
|
2056 |
|
|
fragment <
|
2057 |
|
|
else if (!config.magic_demand_paged)
|
2058 |
|
|
return "ldscripts/${EMULATION_NAME}.xn";
|
2059 |
|
|
EOF
|
2060 |
|
|
fi
|
2061 |
|
|
if test -n "$GENERATE_PIE_SCRIPT" ; then
|
2062 |
|
|
if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
|
2063 |
|
|
fragment <
|
2064 |
|
|
else if (link_info.pie && link_info.combreloc
|
2065 |
|
|
&& link_info.relro && (link_info.flags & DF_BIND_NOW))
|
2066 |
|
|
return "ldscripts/${EMULATION_NAME}.xdw";
|
2067 |
|
|
else if (link_info.pie && link_info.combreloc)
|
2068 |
|
|
return "ldscripts/${EMULATION_NAME}.xdc";
|
2069 |
|
|
EOF
|
2070 |
|
|
fi
|
2071 |
|
|
fragment <
|
2072 |
|
|
else if (link_info.pie)
|
2073 |
|
|
return "ldscripts/${EMULATION_NAME}.xd";
|
2074 |
|
|
EOF
|
2075 |
|
|
fi
|
2076 |
|
|
if test -n "$GENERATE_SHLIB_SCRIPT" ; then
|
2077 |
|
|
if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
|
2078 |
|
|
fragment <
|
2079 |
|
|
else if (link_info.shared && link_info.combreloc
|
2080 |
|
|
&& link_info.relro && (link_info.flags & DF_BIND_NOW))
|
2081 |
|
|
return "ldscripts/${EMULATION_NAME}.xsw";
|
2082 |
|
|
else if (link_info.shared && link_info.combreloc)
|
2083 |
|
|
return "ldscripts/${EMULATION_NAME}.xsc";
|
2084 |
|
|
EOF
|
2085 |
|
|
fi
|
2086 |
|
|
fragment <
|
2087 |
|
|
else if (link_info.shared)
|
2088 |
|
|
return "ldscripts/${EMULATION_NAME}.xs";
|
2089 |
|
|
EOF
|
2090 |
|
|
fi
|
2091 |
|
|
if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
|
2092 |
|
|
fragment <
|
2093 |
|
|
else if (link_info.combreloc && link_info.relro
|
2094 |
|
|
&& (link_info.flags & DF_BIND_NOW))
|
2095 |
|
|
return "ldscripts/${EMULATION_NAME}.xw";
|
2096 |
|
|
else if (link_info.combreloc)
|
2097 |
|
|
return "ldscripts/${EMULATION_NAME}.xc";
|
2098 |
|
|
EOF
|
2099 |
|
|
fi
|
2100 |
|
|
fragment <
|
2101 |
|
|
else
|
2102 |
|
|
return "ldscripts/${EMULATION_NAME}.x";
|
2103 |
|
|
}
|
2104 |
|
|
|
2105 |
|
|
EOF
|
2106 |
|
|
fi
|
2107 |
|
|
fi
|
2108 |
|
|
|
2109 |
|
|
if test -n "$PARSE_AND_LIST_ARGS_CASES" -o x"$GENERATE_SHLIB_SCRIPT" = xyes; then
|
2110 |
|
|
|
2111 |
|
|
if test -n "$PARSE_AND_LIST_PROLOGUE" ; then
|
2112 |
|
|
fragment <
|
2113 |
|
|
$PARSE_AND_LIST_PROLOGUE
|
2114 |
|
|
EOF
|
2115 |
|
|
fi
|
2116 |
|
|
|
2117 |
|
|
fragment <
|
2118 |
|
|
|
2119 |
|
|
#define OPTION_DISABLE_NEW_DTAGS (400)
|
2120 |
|
|
#define OPTION_ENABLE_NEW_DTAGS (OPTION_DISABLE_NEW_DTAGS + 1)
|
2121 |
|
|
#define OPTION_GROUP (OPTION_ENABLE_NEW_DTAGS + 1)
|
2122 |
|
|
#define OPTION_EH_FRAME_HDR (OPTION_GROUP + 1)
|
2123 |
|
|
#define OPTION_EXCLUDE_LIBS (OPTION_EH_FRAME_HDR + 1)
|
2124 |
|
|
#define OPTION_HASH_STYLE (OPTION_EXCLUDE_LIBS + 1)
|
2125 |
|
|
#define OPTION_BUILD_ID (OPTION_HASH_STYLE + 1)
|
2126 |
|
|
#define OPTION_AUDIT (OPTION_BUILD_ID + 1)
|
2127 |
|
|
|
2128 |
|
|
static void
|
2129 |
|
|
gld${EMULATION_NAME}_add_options
|
2130 |
|
|
(int ns, char **shortopts, int nl, struct option **longopts,
|
2131 |
|
|
int nrl ATTRIBUTE_UNUSED, struct option **really_longopts ATTRIBUTE_UNUSED)
|
2132 |
|
|
{
|
2133 |
|
|
static const char xtra_short[] = "${PARSE_AND_LIST_SHORTOPTS}z:P:";
|
2134 |
|
|
static const struct option xtra_long[] = {
|
2135 |
|
|
{"build-id", optional_argument, NULL, OPTION_BUILD_ID},
|
2136 |
|
|
{"audit", required_argument, NULL, OPTION_AUDIT},
|
2137 |
|
|
{"depaudit", required_argument, NULL, 'P'},
|
2138 |
|
|
EOF
|
2139 |
|
|
|
2140 |
|
|
if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
|
2141 |
|
|
fragment <
|
2142 |
|
|
{"disable-new-dtags", no_argument, NULL, OPTION_DISABLE_NEW_DTAGS},
|
2143 |
|
|
{"enable-new-dtags", no_argument, NULL, OPTION_ENABLE_NEW_DTAGS},
|
2144 |
|
|
{"eh-frame-hdr", no_argument, NULL, OPTION_EH_FRAME_HDR},
|
2145 |
|
|
{"exclude-libs", required_argument, NULL, OPTION_EXCLUDE_LIBS},
|
2146 |
|
|
{"hash-style", required_argument, NULL, OPTION_HASH_STYLE},
|
2147 |
|
|
{"Bgroup", no_argument, NULL, OPTION_GROUP},
|
2148 |
|
|
EOF
|
2149 |
|
|
fi
|
2150 |
|
|
|
2151 |
|
|
if test -n "$PARSE_AND_LIST_LONGOPTS" ; then
|
2152 |
|
|
fragment <
|
2153 |
|
|
$PARSE_AND_LIST_LONGOPTS
|
2154 |
|
|
EOF
|
2155 |
|
|
fi
|
2156 |
|
|
|
2157 |
|
|
fragment <
|
2158 |
|
|
{NULL, no_argument, NULL, 0}
|
2159 |
|
|
};
|
2160 |
|
|
|
2161 |
|
|
*shortopts = (char *) xrealloc (*shortopts, ns + sizeof (xtra_short));
|
2162 |
|
|
memcpy (*shortopts + ns, &xtra_short, sizeof (xtra_short));
|
2163 |
|
|
*longopts = (struct option *)
|
2164 |
|
|
xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long));
|
2165 |
|
|
memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
|
2166 |
|
|
}
|
2167 |
|
|
|
2168 |
|
|
#define DEFAULT_BUILD_ID_STYLE "sha1"
|
2169 |
|
|
|
2170 |
|
|
static bfd_boolean
|
2171 |
|
|
gld${EMULATION_NAME}_handle_option (int optc)
|
2172 |
|
|
{
|
2173 |
|
|
switch (optc)
|
2174 |
|
|
{
|
2175 |
|
|
default:
|
2176 |
|
|
return FALSE;
|
2177 |
|
|
|
2178 |
|
|
case OPTION_BUILD_ID:
|
2179 |
|
|
if (link_info.emit_note_gnu_build_id != NULL)
|
2180 |
|
|
{
|
2181 |
|
|
free (link_info.emit_note_gnu_build_id);
|
2182 |
|
|
link_info.emit_note_gnu_build_id = NULL;
|
2183 |
|
|
}
|
2184 |
|
|
if (optarg == NULL)
|
2185 |
|
|
optarg = DEFAULT_BUILD_ID_STYLE;
|
2186 |
|
|
if (strcmp (optarg, "none"))
|
2187 |
|
|
link_info.emit_note_gnu_build_id = xstrdup (optarg);
|
2188 |
|
|
break;
|
2189 |
|
|
case OPTION_AUDIT:
|
2190 |
|
|
gld${EMULATION_NAME}_append_to_separated_string (&audit, optarg);
|
2191 |
|
|
break;
|
2192 |
|
|
case 'P':
|
2193 |
|
|
gld${EMULATION_NAME}_append_to_separated_string (&depaudit, optarg);
|
2194 |
|
|
break;
|
2195 |
|
|
|
2196 |
|
|
EOF
|
2197 |
|
|
|
2198 |
|
|
if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
|
2199 |
|
|
fragment <
|
2200 |
|
|
case OPTION_DISABLE_NEW_DTAGS:
|
2201 |
|
|
link_info.new_dtags = FALSE;
|
2202 |
|
|
break;
|
2203 |
|
|
|
2204 |
|
|
case OPTION_ENABLE_NEW_DTAGS:
|
2205 |
|
|
link_info.new_dtags = TRUE;
|
2206 |
|
|
break;
|
2207 |
|
|
|
2208 |
|
|
case OPTION_EH_FRAME_HDR:
|
2209 |
|
|
link_info.eh_frame_hdr = TRUE;
|
2210 |
|
|
break;
|
2211 |
|
|
|
2212 |
|
|
case OPTION_GROUP:
|
2213 |
|
|
link_info.flags_1 |= (bfd_vma) DF_1_GROUP;
|
2214 |
|
|
/* Groups must be self-contained. */
|
2215 |
|
|
link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR;
|
2216 |
|
|
link_info.unresolved_syms_in_shared_libs = RM_GENERATE_ERROR;
|
2217 |
|
|
break;
|
2218 |
|
|
|
2219 |
|
|
case OPTION_EXCLUDE_LIBS:
|
2220 |
|
|
add_excluded_libs (optarg);
|
2221 |
|
|
break;
|
2222 |
|
|
|
2223 |
|
|
case OPTION_HASH_STYLE:
|
2224 |
|
|
link_info.emit_hash = FALSE;
|
2225 |
|
|
link_info.emit_gnu_hash = FALSE;
|
2226 |
|
|
if (strcmp (optarg, "sysv") == 0)
|
2227 |
|
|
link_info.emit_hash = TRUE;
|
2228 |
|
|
else if (strcmp (optarg, "gnu") == 0)
|
2229 |
|
|
link_info.emit_gnu_hash = TRUE;
|
2230 |
|
|
else if (strcmp (optarg, "both") == 0)
|
2231 |
|
|
{
|
2232 |
|
|
link_info.emit_hash = TRUE;
|
2233 |
|
|
link_info.emit_gnu_hash = TRUE;
|
2234 |
|
|
}
|
2235 |
|
|
else
|
2236 |
|
|
einfo (_("%P%F: invalid hash style \`%s'\n"), optarg);
|
2237 |
|
|
break;
|
2238 |
|
|
|
2239 |
|
|
case 'z':
|
2240 |
|
|
if (strcmp (optarg, "initfirst") == 0)
|
2241 |
|
|
link_info.flags_1 |= (bfd_vma) DF_1_INITFIRST;
|
2242 |
|
|
else if (strcmp (optarg, "interpose") == 0)
|
2243 |
|
|
link_info.flags_1 |= (bfd_vma) DF_1_INTERPOSE;
|
2244 |
|
|
else if (strcmp (optarg, "loadfltr") == 0)
|
2245 |
|
|
link_info.flags_1 |= (bfd_vma) DF_1_LOADFLTR;
|
2246 |
|
|
else if (strcmp (optarg, "nodefaultlib") == 0)
|
2247 |
|
|
link_info.flags_1 |= (bfd_vma) DF_1_NODEFLIB;
|
2248 |
|
|
else if (strcmp (optarg, "nodelete") == 0)
|
2249 |
|
|
link_info.flags_1 |= (bfd_vma) DF_1_NODELETE;
|
2250 |
|
|
else if (strcmp (optarg, "nodlopen") == 0)
|
2251 |
|
|
link_info.flags_1 |= (bfd_vma) DF_1_NOOPEN;
|
2252 |
|
|
else if (strcmp (optarg, "nodump") == 0)
|
2253 |
|
|
link_info.flags_1 |= (bfd_vma) DF_1_NODUMP;
|
2254 |
|
|
else if (strcmp (optarg, "now") == 0)
|
2255 |
|
|
{
|
2256 |
|
|
link_info.flags |= (bfd_vma) DF_BIND_NOW;
|
2257 |
|
|
link_info.flags_1 |= (bfd_vma) DF_1_NOW;
|
2258 |
|
|
}
|
2259 |
|
|
else if (strcmp (optarg, "lazy") == 0)
|
2260 |
|
|
{
|
2261 |
|
|
link_info.flags &= ~(bfd_vma) DF_BIND_NOW;
|
2262 |
|
|
link_info.flags_1 &= ~(bfd_vma) DF_1_NOW;
|
2263 |
|
|
}
|
2264 |
|
|
else if (strcmp (optarg, "origin") == 0)
|
2265 |
|
|
{
|
2266 |
|
|
link_info.flags |= (bfd_vma) DF_ORIGIN;
|
2267 |
|
|
link_info.flags_1 |= (bfd_vma) DF_1_ORIGIN;
|
2268 |
|
|
}
|
2269 |
|
|
else if (strcmp (optarg, "defs") == 0)
|
2270 |
|
|
link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR;
|
2271 |
|
|
else if (strcmp (optarg, "muldefs") == 0)
|
2272 |
|
|
link_info.allow_multiple_definition = TRUE;
|
2273 |
|
|
else if (strcmp (optarg, "combreloc") == 0)
|
2274 |
|
|
link_info.combreloc = TRUE;
|
2275 |
|
|
else if (strcmp (optarg, "nocombreloc") == 0)
|
2276 |
|
|
link_info.combreloc = FALSE;
|
2277 |
|
|
else if (strcmp (optarg, "nocopyreloc") == 0)
|
2278 |
|
|
link_info.nocopyreloc = TRUE;
|
2279 |
|
|
else if (strcmp (optarg, "execstack") == 0)
|
2280 |
|
|
{
|
2281 |
|
|
link_info.execstack = TRUE;
|
2282 |
|
|
link_info.noexecstack = FALSE;
|
2283 |
|
|
}
|
2284 |
|
|
else if (strcmp (optarg, "noexecstack") == 0)
|
2285 |
|
|
{
|
2286 |
|
|
link_info.noexecstack = TRUE;
|
2287 |
|
|
link_info.execstack = FALSE;
|
2288 |
|
|
}
|
2289 |
|
|
EOF
|
2290 |
|
|
|
2291 |
|
|
if test -n "$COMMONPAGESIZE"; then
|
2292 |
|
|
fragment <
|
2293 |
|
|
else if (strcmp (optarg, "relro") == 0)
|
2294 |
|
|
link_info.relro = TRUE;
|
2295 |
|
|
else if (strcmp (optarg, "norelro") == 0)
|
2296 |
|
|
link_info.relro = FALSE;
|
2297 |
|
|
EOF
|
2298 |
|
|
fi
|
2299 |
|
|
|
2300 |
|
|
fragment <
|
2301 |
|
|
else if (CONST_STRNEQ (optarg, "max-page-size="))
|
2302 |
|
|
{
|
2303 |
|
|
char *end;
|
2304 |
|
|
|
2305 |
|
|
config.maxpagesize = strtoul (optarg + 14, &end, 0);
|
2306 |
|
|
if (*end || (config.maxpagesize & (config.maxpagesize - 1)) != 0)
|
2307 |
|
|
einfo (_("%P%F: invalid maxium page size \`%s'\n"),
|
2308 |
|
|
optarg + 14);
|
2309 |
|
|
}
|
2310 |
|
|
else if (CONST_STRNEQ (optarg, "common-page-size="))
|
2311 |
|
|
{
|
2312 |
|
|
char *end;
|
2313 |
|
|
config.commonpagesize = strtoul (optarg + 17, &end, 0);
|
2314 |
|
|
if (*end
|
2315 |
|
|
|| (config.commonpagesize & (config.commonpagesize - 1)) != 0)
|
2316 |
|
|
einfo (_("%P%F: invalid common page size \`%s'\n"),
|
2317 |
|
|
optarg + 17);
|
2318 |
|
|
}
|
2319 |
|
|
/* What about the other Solaris -z options? FIXME. */
|
2320 |
|
|
break;
|
2321 |
|
|
EOF
|
2322 |
|
|
fi
|
2323 |
|
|
|
2324 |
|
|
if test -n "$PARSE_AND_LIST_ARGS_CASES" ; then
|
2325 |
|
|
fragment <
|
2326 |
|
|
$PARSE_AND_LIST_ARGS_CASES
|
2327 |
|
|
EOF
|
2328 |
|
|
fi
|
2329 |
|
|
|
2330 |
|
|
fragment <
|
2331 |
|
|
}
|
2332 |
|
|
|
2333 |
|
|
return TRUE;
|
2334 |
|
|
}
|
2335 |
|
|
|
2336 |
|
|
EOF
|
2337 |
|
|
|
2338 |
|
|
if test x"$LDEMUL_LIST_OPTIONS" != xgld"$EMULATION_NAME"_list_options; then
|
2339 |
|
|
fragment <
|
2340 |
|
|
|
2341 |
|
|
static void
|
2342 |
|
|
gld${EMULATION_NAME}_list_options (FILE * file)
|
2343 |
|
|
{
|
2344 |
|
|
fprintf (file, _("\
|
2345 |
|
|
--build-id[=STYLE] Generate build ID note\n"));
|
2346 |
|
|
fprintf (file, _("\
|
2347 |
|
|
--audit=AUDITLIB Specify a library to use for auditing\n"));
|
2348 |
|
|
fprintf (file, _("\
|
2349 |
|
|
-P AUDITLIB, --depaudit=AUDITLIB\n" "\
|
2350 |
|
|
Specify a library to use for auditing dependencies\n"));
|
2351 |
|
|
EOF
|
2352 |
|
|
|
2353 |
|
|
if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
|
2354 |
|
|
fragment <
|
2355 |
|
|
fprintf (file, _("\
|
2356 |
|
|
-Bgroup Selects group name lookup rules for DSO\n"));
|
2357 |
|
|
fprintf (file, _("\
|
2358 |
|
|
--disable-new-dtags Disable new dynamic tags\n"));
|
2359 |
|
|
fprintf (file, _("\
|
2360 |
|
|
--enable-new-dtags Enable new dynamic tags\n"));
|
2361 |
|
|
fprintf (file, _("\
|
2362 |
|
|
--eh-frame-hdr Create .eh_frame_hdr section\n"));
|
2363 |
|
|
fprintf (file, _("\
|
2364 |
|
|
--hash-style=STYLE Set hash style to sysv, gnu or both\n"));
|
2365 |
|
|
fprintf (file, _("\
|
2366 |
|
|
-z combreloc Merge dynamic relocs into one section and sort\n"));
|
2367 |
|
|
fprintf (file, _("\
|
2368 |
|
|
-z defs Report unresolved symbols in object files.\n"));
|
2369 |
|
|
fprintf (file, _("\
|
2370 |
|
|
-z execstack Mark executable as requiring executable stack\n"));
|
2371 |
|
|
fprintf (file, _("\
|
2372 |
|
|
-z initfirst Mark DSO to be initialized first at runtime\n"));
|
2373 |
|
|
fprintf (file, _("\
|
2374 |
|
|
-z interpose Mark object to interpose all DSOs but executable\n"));
|
2375 |
|
|
fprintf (file, _("\
|
2376 |
|
|
-z lazy Mark object lazy runtime binding (default)\n"));
|
2377 |
|
|
fprintf (file, _("\
|
2378 |
|
|
-z loadfltr Mark object requiring immediate process\n"));
|
2379 |
|
|
fprintf (file, _("\
|
2380 |
|
|
-z muldefs Allow multiple definitions\n"));
|
2381 |
|
|
fprintf (file, _("\
|
2382 |
|
|
-z nocombreloc Don't merge dynamic relocs into one section\n"));
|
2383 |
|
|
fprintf (file, _("\
|
2384 |
|
|
-z nocopyreloc Don't create copy relocs\n"));
|
2385 |
|
|
fprintf (file, _("\
|
2386 |
|
|
-z nodefaultlib Mark object not to use default search paths\n"));
|
2387 |
|
|
fprintf (file, _("\
|
2388 |
|
|
-z nodelete Mark DSO non-deletable at runtime\n"));
|
2389 |
|
|
fprintf (file, _("\
|
2390 |
|
|
-z nodlopen Mark DSO not available to dlopen\n"));
|
2391 |
|
|
fprintf (file, _("\
|
2392 |
|
|
-z nodump Mark DSO not available to dldump\n"));
|
2393 |
|
|
fprintf (file, _("\
|
2394 |
|
|
-z noexecstack Mark executable as not requiring executable stack\n"));
|
2395 |
|
|
EOF
|
2396 |
|
|
|
2397 |
|
|
if test -n "$COMMONPAGESIZE"; then
|
2398 |
|
|
fragment <
|
2399 |
|
|
fprintf (file, _("\
|
2400 |
|
|
-z norelro Don't create RELRO program header\n"));
|
2401 |
|
|
EOF
|
2402 |
|
|
fi
|
2403 |
|
|
|
2404 |
|
|
fragment <
|
2405 |
|
|
fprintf (file, _("\
|
2406 |
|
|
-z now Mark object non-lazy runtime binding\n"));
|
2407 |
|
|
fprintf (file, _("\
|
2408 |
|
|
-z origin Mark object requiring immediate \$ORIGIN\n\
|
2409 |
|
|
processing at runtime\n"));
|
2410 |
|
|
EOF
|
2411 |
|
|
|
2412 |
|
|
if test -n "$COMMONPAGESIZE"; then
|
2413 |
|
|
fragment <
|
2414 |
|
|
fprintf (file, _("\
|
2415 |
|
|
-z relro Create RELRO program header\n"));
|
2416 |
|
|
EOF
|
2417 |
|
|
fi
|
2418 |
|
|
|
2419 |
|
|
fragment <
|
2420 |
|
|
fprintf (file, _("\
|
2421 |
|
|
-z max-page-size=SIZE Set maximum page size to SIZE\n"));
|
2422 |
|
|
fprintf (file, _("\
|
2423 |
|
|
-z common-page-size=SIZE Set common page size to SIZE\n"));
|
2424 |
|
|
fprintf (file, _("\
|
2425 |
|
|
-z KEYWORD Ignored for Solaris compatibility\n"));
|
2426 |
|
|
EOF
|
2427 |
|
|
fi
|
2428 |
|
|
|
2429 |
|
|
if test -n "$PARSE_AND_LIST_OPTIONS" ; then
|
2430 |
|
|
fragment <
|
2431 |
|
|
$PARSE_AND_LIST_OPTIONS
|
2432 |
|
|
EOF
|
2433 |
|
|
fi
|
2434 |
|
|
|
2435 |
|
|
fragment <
|
2436 |
|
|
}
|
2437 |
|
|
EOF
|
2438 |
|
|
|
2439 |
|
|
if test -n "$PARSE_AND_LIST_EPILOGUE" ; then
|
2440 |
|
|
fragment <
|
2441 |
|
|
$PARSE_AND_LIST_EPILOGUE
|
2442 |
|
|
EOF
|
2443 |
|
|
fi
|
2444 |
|
|
fi
|
2445 |
|
|
else
|
2446 |
|
|
fragment <
|
2447 |
|
|
#define gld${EMULATION_NAME}_add_options NULL
|
2448 |
|
|
#define gld${EMULATION_NAME}_handle_option NULL
|
2449 |
|
|
EOF
|
2450 |
|
|
if test x"$LDEMUL_LIST_OPTIONS" != xgld"$EMULATION_NAME"_list_options; then
|
2451 |
|
|
fragment <
|
2452 |
|
|
#define gld${EMULATION_NAME}_list_options NULL
|
2453 |
|
|
EOF
|
2454 |
|
|
fi
|
2455 |
|
|
fi
|
2456 |
|
|
|
2457 |
|
|
fragment <
|
2458 |
|
|
|
2459 |
|
|
struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
|
2460 |
|
|
{
|
2461 |
|
|
${LDEMUL_BEFORE_PARSE-gld${EMULATION_NAME}_before_parse},
|
2462 |
|
|
${LDEMUL_SYSLIB-syslib_default},
|
2463 |
|
|
${LDEMUL_HLL-hll_default},
|
2464 |
|
|
${LDEMUL_AFTER_PARSE-after_parse_default},
|
2465 |
|
|
${LDEMUL_AFTER_OPEN-gld${EMULATION_NAME}_after_open},
|
2466 |
|
|
${LDEMUL_AFTER_ALLOCATION-gld${EMULATION_NAME}_after_allocation},
|
2467 |
|
|
${LDEMUL_SET_OUTPUT_ARCH-set_output_arch_default},
|
2468 |
|
|
${LDEMUL_CHOOSE_TARGET-ldemul_default_target},
|
2469 |
|
|
${LDEMUL_BEFORE_ALLOCATION-gld${EMULATION_NAME}_before_allocation},
|
2470 |
|
|
${LDEMUL_GET_SCRIPT-gld${EMULATION_NAME}_get_script},
|
2471 |
|
|
"${EMULATION_NAME}",
|
2472 |
|
|
"${OUTPUT_FORMAT}",
|
2473 |
|
|
${LDEMUL_FINISH-finish_default},
|
2474 |
|
|
${LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS-NULL},
|
2475 |
|
|
${LDEMUL_OPEN_DYNAMIC_ARCHIVE-gld${EMULATION_NAME}_open_dynamic_archive},
|
2476 |
|
|
${LDEMUL_PLACE_ORPHAN-gld${EMULATION_NAME}_place_orphan},
|
2477 |
|
|
${LDEMUL_SET_SYMBOLS-NULL},
|
2478 |
|
|
${LDEMUL_PARSE_ARGS-NULL},
|
2479 |
|
|
gld${EMULATION_NAME}_add_options,
|
2480 |
|
|
gld${EMULATION_NAME}_handle_option,
|
2481 |
|
|
${LDEMUL_UNRECOGNIZED_FILE-NULL},
|
2482 |
|
|
${LDEMUL_LIST_OPTIONS-gld${EMULATION_NAME}_list_options},
|
2483 |
|
|
${LDEMUL_RECOGNIZED_FILE-gld${EMULATION_NAME}_load_symbols},
|
2484 |
|
|
${LDEMUL_FIND_POTENTIAL_LIBRARIES-NULL},
|
2485 |
|
|
${LDEMUL_NEW_VERS_PATTERN-NULL}
|
2486 |
|
|
};
|
2487 |
|
|
EOF
|