[ec24a37] | 1 | /* |
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[8d1ab1f] | 2 | * Copyright (c) 2011, Chris Johns <chrisj@rtems.org> |
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[ec24a37] | 3 | * |
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| 4 | * Permission to use, copy, modify, and/or distribute this software for any |
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| 5 | * purpose with or without fee is hereby granted, provided that the above |
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| 6 | * copyright notice and this permission notice appear in all copies. |
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[8d1ab1f] | 7 | * |
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[ec24a37] | 8 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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| 9 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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| 10 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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| 11 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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| 12 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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| 13 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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| 14 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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| 15 | */ |
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| 16 | /** |
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| 17 | * @file |
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| 18 | * |
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| 19 | * @ingroup rtems_ld |
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| 20 | * |
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| 21 | * @brief RTEMS Linker. |
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| 22 | * |
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| 23 | */ |
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| 24 | |
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| 25 | #if HAVE_CONFIG_H |
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| 26 | #include "config.h" |
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| 27 | #endif |
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| 28 | |
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| 29 | #include <fstream> |
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| 30 | #include <iostream> |
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| 31 | |
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| 32 | #include <errno.h> |
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[c1d1636] | 33 | #include <string.h> |
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[ec24a37] | 34 | |
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| 35 | #include <rld.h> |
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[a1d4930] | 36 | |
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| 37 | #include "fastlz.h" |
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[ec24a37] | 38 | |
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| 39 | namespace rld |
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| 40 | { |
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| 41 | namespace outputter |
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| 42 | { |
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[810d0ad] | 43 | const std::string |
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[a1d4930] | 44 | script_text (files::object_list& dependents, |
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| 45 | files::cache& cache) |
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[810d0ad] | 46 | { |
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[a1d4930] | 47 | std::ostringstream out; |
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| 48 | files::object_list objects; |
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[810d0ad] | 49 | |
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[a1d4930] | 50 | /* |
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| 51 | * The merge removes them from the dependent list. |
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| 52 | */ |
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| 53 | files::object_list dep_copy (dependents); |
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[810d0ad] | 54 | |
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[a1d4930] | 55 | cache.get_objects (objects); |
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| 56 | objects.merge (dep_copy); |
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[810d0ad] | 57 | objects.unique (); |
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| 58 | |
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[a1d4930] | 59 | for (files::object_list::iterator oi = objects.begin (); |
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[810d0ad] | 60 | oi != objects.end (); |
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| 61 | ++oi) |
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| 62 | { |
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[a1d4930] | 63 | files::object& obj = *(*oi); |
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[810d0ad] | 64 | |
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| 65 | if (rld::verbose () >= RLD_VERBOSE_INFO) |
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| 66 | std::cout << " o: " << obj.name ().full () << std::endl; |
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| 67 | |
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| 68 | out << "o:" << obj.name ().basename () << std::endl; |
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| 69 | |
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[a1d4930] | 70 | symbols::table& unresolved = obj.unresolved_symbols (); |
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[810d0ad] | 71 | |
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| 72 | int count = 0; |
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[a1d4930] | 73 | for (symbols::table::iterator ursi = unresolved.begin (); |
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[810d0ad] | 74 | ursi != unresolved.begin (); |
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| 75 | ++ursi) |
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| 76 | { |
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[a1d4930] | 77 | symbols::symbol& urs = *((*ursi).second); |
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[810d0ad] | 78 | |
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| 79 | ++count; |
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| 80 | |
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| 81 | if (rld::verbose () >= RLD_VERBOSE_INFO) |
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| 82 | std::cout << " u: " << count << ':' << urs.name () << std::endl; |
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| 83 | |
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| 84 | out << " u:" << count << ':' << urs.name () << std::endl; |
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| 85 | } |
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| 86 | } |
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| 87 | |
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| 88 | return out.str (); |
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| 89 | } |
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| 90 | |
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[a1d4930] | 91 | void |
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| 92 | metadata_object (files::object& metadata, |
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| 93 | files::object_list& dependents, |
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| 94 | files::cache& cache) |
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[fd8a2c5] | 95 | { |
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| 96 | if (rld::verbose () >= RLD_VERBOSE_INFO) |
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[a1d4930] | 97 | std::cout << "metadata: " << metadata.name ().full () << std::endl; |
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[fd8a2c5] | 98 | |
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[a1d4930] | 99 | const std::string script = script_text (dependents, cache); |
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[fd8a2c5] | 100 | |
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| 101 | metadata.open (true); |
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| 102 | metadata.begin (); |
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| 103 | |
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| 104 | elf::file& elf = metadata.elf (); |
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| 105 | |
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| 106 | elf.set_header (ET_EXEC, |
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| 107 | elf::object_class (), |
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| 108 | elf::object_datatype (), |
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| 109 | elf::object_machine_type ()); |
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| 110 | |
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| 111 | elf::section md (elf, |
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| 112 | elf.section_count () + 1, |
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| 113 | ".rtemsmd", |
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| 114 | SHT_STRTAB, |
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| 115 | 1, |
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| 116 | 0, |
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| 117 | 0, |
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| 118 | 0, |
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| 119 | script.length ()); |
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| 120 | |
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| 121 | md.add_data (ELF_T_BYTE, |
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| 122 | 1, |
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| 123 | script.length (), |
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| 124 | (void*) script.c_str ()); |
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| 125 | |
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| 126 | elf.add (md); |
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| 127 | elf.write (); |
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| 128 | |
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| 129 | metadata.end (); |
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| 130 | metadata.close (); |
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| 131 | } |
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| 132 | |
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[ec24a37] | 133 | void |
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[a1d4930] | 134 | archive (const std::string& name, |
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| 135 | files::object_list& dependents, |
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| 136 | files::cache& cache) |
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[ec24a37] | 137 | { |
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| 138 | if (rld::verbose () >= RLD_VERBOSE_INFO) |
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[a1d4930] | 139 | std::cout << "outputter:archive: " << name |
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| 140 | << ", dependents: " << dependents.size () << std::endl; |
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[ec24a37] | 141 | |
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[a1d4930] | 142 | std::string ext = files::extension (name); |
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| 143 | std::string mdname = |
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| 144 | name.substr (0, name.length () - ext.length ()) + "-metadata.o"; |
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[fd8a2c5] | 145 | |
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[a1d4930] | 146 | files::object metadata (mdname); |
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[ec24a37] | 147 | |
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[a1d4930] | 148 | metadata_object (metadata, dependents, cache); |
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| 149 | |
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| 150 | /* |
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| 151 | * The merge removes them from the dependent list. |
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| 152 | */ |
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| 153 | files::object_list dep_copy (dependents); |
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| 154 | files::object_list objects; |
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[ec24a37] | 155 | |
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[a1d4930] | 156 | cache.get_objects (objects); |
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| 157 | objects.merge (dep_copy); |
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| 158 | objects.push_front (&metadata); |
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[977c3de] | 159 | objects.unique (); |
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| 160 | |
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[a1d4930] | 161 | files::archive arch (name); |
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[ec24a37] | 162 | arch.create (objects); |
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| 163 | } |
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| 164 | |
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| 165 | void |
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[a1d4930] | 166 | script (const std::string& name, |
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| 167 | files::object_list& dependents, |
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| 168 | files::cache& cache) |
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[ec24a37] | 169 | { |
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| 170 | if (rld::verbose () >= RLD_VERBOSE_INFO) |
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| 171 | std::cout << "outputter:script: " << name << std::endl; |
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| 172 | |
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[8d1ab1f] | 173 | std::fstream out (name.c_str (), |
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[ec24a37] | 174 | std::ios_base::out | std::ios_base::trunc); |
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| 175 | |
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| 176 | /* |
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| 177 | * Tag for the shell to use. |
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| 178 | */ |
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| 179 | out << "!# rls" << std::endl; |
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| 180 | |
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[810d0ad] | 181 | try |
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| 182 | { |
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| 183 | out << script_text (dependents, cache); |
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| 184 | } |
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| 185 | catch (...) |
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| 186 | { |
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| 187 | out.close (); |
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[a1d4930] | 188 | throw; |
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[810d0ad] | 189 | } |
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| 190 | |
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| 191 | out.close (); |
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[ec24a37] | 192 | } |
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[a1d4930] | 193 | |
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| 194 | /** |
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| 195 | * Append the output data to the output buffer and if full compress and |
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| 196 | * write to the output file. If the output buffer is 0 flush the output |
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| 197 | * buffer. |
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| 198 | */ |
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| 199 | static void |
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| 200 | app_write_output (files::image& out, |
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| 201 | const uint8_t* out_buffer, |
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| 202 | const size_t out_buffer_size, |
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| 203 | size_t& out_buffer_level, |
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| 204 | const void* output_, |
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| 205 | size_t outputting, |
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| 206 | uint8_t* compress_buffer, |
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| 207 | size_t& out_total) |
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| 208 | { |
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| 209 | const uint8_t* output = static_cast <const uint8_t*> (output_); |
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| 210 | |
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| 211 | while (outputting) |
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| 212 | { |
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| 213 | if (output) |
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| 214 | { |
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| 215 | size_t appending; |
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| 216 | |
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| 217 | if (outputting > (out_buffer_size - out_buffer_level)) |
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| 218 | appending = out_buffer_size - out_buffer_level; |
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| 219 | else |
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| 220 | appending = outputting; |
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| 221 | |
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| 222 | ::memcpy ((void*) (out_buffer + out_buffer_level), |
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| 223 | output, |
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| 224 | appending); |
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| 225 | |
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| 226 | out_buffer_level += appending; |
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| 227 | outputting -= appending; |
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| 228 | } |
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| 229 | else |
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| 230 | { |
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| 231 | outputting = 0; |
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| 232 | } |
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| 233 | |
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| 234 | if (!output || (out_buffer_level >= out_buffer_size)) |
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| 235 | { |
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| 236 | int writing = |
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| 237 | ::fastlz_compress (out_buffer, out_buffer_level, compress_buffer); |
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| 238 | |
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| 239 | out.write (compress_buffer, writing); |
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| 240 | |
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| 241 | out_total += writing; |
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| 242 | |
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| 243 | out_buffer_level = 0; |
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| 244 | } |
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| 245 | } |
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| 246 | } |
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| 247 | |
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| 248 | void |
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| 249 | application (const std::string& name, |
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| 250 | files::object_list& dependents, |
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| 251 | files::cache& cache) |
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| 252 | { |
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| 253 | if (rld::verbose () >= RLD_VERBOSE_INFO) |
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| 254 | std::cout << "outputter:application: " << name << std::endl; |
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| 255 | |
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| 256 | files::object_list dep_copy (dependents); |
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| 257 | files::object_list objects; |
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| 258 | std::string header; |
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| 259 | std::string script; |
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| 260 | files::image app (name); |
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| 261 | |
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| 262 | header = "RTEMS-APP,00000000,01.00.00,LZ77,00000000\n"; |
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| 263 | header += '\0'; |
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| 264 | |
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| 265 | script = script_text (dependents, cache); |
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| 266 | |
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| 267 | cache.get_objects (objects); |
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| 268 | objects.merge (dep_copy); |
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| 269 | objects.unique (); |
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| 270 | |
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| 271 | app.open (true); |
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| 272 | app.write (header.c_str (), header.size ()); |
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| 273 | |
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| 274 | #define INPUT_BUFFER_SIZE (64 * 1024) |
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| 275 | #define OUTPUT_BUFFER_SIZE (128 * 1024) |
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| 276 | #define FASTLZ_BUFFER_SIZE (OUTPUT_BUFFER_SIZE + ((int) (OUTPUT_BUFFER_SIZE * 0.10))) |
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| 277 | |
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| 278 | uint8_t* in_buffer = 0; |
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| 279 | uint8_t* out_buffer = 0; |
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| 280 | uint8_t* compress_buffer = 0; |
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| 281 | size_t out_level = 0; |
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| 282 | size_t in_total = 0; |
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| 283 | size_t out_total = 0; |
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| 284 | |
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| 285 | try |
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| 286 | { |
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| 287 | in_buffer = new uint8_t[INPUT_BUFFER_SIZE]; |
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| 288 | out_buffer = new uint8_t[OUTPUT_BUFFER_SIZE]; |
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| 289 | compress_buffer = new uint8_t[FASTLZ_BUFFER_SIZE]; |
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| 290 | |
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| 291 | app_write_output (app, |
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| 292 | out_buffer, OUTPUT_BUFFER_SIZE, out_level, |
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| 293 | script.c_str (), script.size (), |
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| 294 | compress_buffer, |
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| 295 | out_total); |
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| 296 | |
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| 297 | in_total += script.size (); |
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| 298 | |
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| 299 | for (files::object_list::iterator oi = objects.begin (); |
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| 300 | oi != objects.end (); |
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| 301 | ++oi) |
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| 302 | { |
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| 303 | files::object& obj = *(*oi); |
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| 304 | |
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| 305 | obj.open (); |
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| 306 | |
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| 307 | try |
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| 308 | { |
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| 309 | obj.seek (0); |
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| 310 | |
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| 311 | size_t in_size = obj.name ().size (); |
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| 312 | |
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| 313 | while (in_size) |
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| 314 | { |
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| 315 | size_t reading = |
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| 316 | in_size < INPUT_BUFFER_SIZE ? in_size : INPUT_BUFFER_SIZE; |
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| 317 | |
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| 318 | obj.read (in_buffer, reading); |
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| 319 | |
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| 320 | app_write_output (app, |
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| 321 | out_buffer, OUTPUT_BUFFER_SIZE, out_level, |
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| 322 | in_buffer, reading, |
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| 323 | compress_buffer, |
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| 324 | out_total); |
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| 325 | |
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| 326 | in_size -= reading; |
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| 327 | in_total += reading; |
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| 328 | } |
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| 329 | } |
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| 330 | catch (...) |
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| 331 | { |
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| 332 | obj.close (); |
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| 333 | throw; |
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| 334 | } |
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| 335 | |
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| 336 | obj.close (); |
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| 337 | } |
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| 338 | } |
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| 339 | catch (...) |
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| 340 | { |
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| 341 | delete [] in_buffer; |
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| 342 | delete [] out_buffer; |
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| 343 | delete [] compress_buffer; |
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| 344 | throw; |
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| 345 | } |
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| 346 | |
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| 347 | app_write_output (app, |
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| 348 | out_buffer, OUTPUT_BUFFER_SIZE, out_level, |
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| 349 | 0, out_level, |
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| 350 | compress_buffer, |
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| 351 | out_total); |
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| 352 | |
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| 353 | app.close (); |
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| 354 | |
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| 355 | delete [] in_buffer; |
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| 356 | delete [] out_buffer; |
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| 357 | delete [] compress_buffer; |
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| 358 | |
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| 359 | if (rld::verbose () >= RLD_VERBOSE_INFO) |
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| 360 | { |
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| 361 | int pcent = (out_total * 100) / in_total; |
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| 362 | int premand = (((out_total * 1000) + 500) / in_total) % 10; |
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| 363 | std::cout << "outputter:application: objects: " << objects.size () |
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| 364 | << ", size: " << out_total |
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| 365 | << ", compression: " << pcent << '.' << premand << '%' |
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| 366 | << std::endl; |
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| 367 | } |
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| 368 | } |
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| 369 | |
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[ec24a37] | 370 | } |
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| 371 | } |
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