1 # Copyright (C) 2008-2024 Free Software Foundation, Inc. 2 # 3 # This file is part of GCC. 4 # 5 # GCC is free software; you can redistribute it and/or modify 6 # it under the terms of the GNU General Public License as published by 7 # the Free Software Foundation; either version 3, or (at your option) 8 # any later version. 9 # 10 # GCC is distributed in the hope that it will be useful, 11 # but WITHOUT ANY WARRANTY; without even the implied warranty of 12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 # GNU General Public License for more details. 14 # 15 # You should have received a copy of the GNU General Public License 16 # along with GCC; see the file COPYING3. If not see 17 # <http://www.gnu.org/licenses/>. 18 19 # In order to work around the very problems that force us to now generally 20 # create a libgcc.so, glibc reexported a number of routines from libgcc.a. 21 # By now choosing the same version tags for these specific routines, we 22 # maintain enough binary compatibility to allow future versions of glibc 23 # to defer implementation of these routines to libgcc.so via DT_AUXILIARY. 24 25 %ifndef __x86_64__ 26 %exclude { 27 __divdi3 28 __moddi3 29 __udivdi3 30 __umoddi3 31 __register_frame 32 __register_frame_table 33 __deregister_frame 34 __register_frame_info 35 __deregister_frame_info 36 __frame_state_for 37 __register_frame_info_table 38 } 39 40 %inherit GCC_3.0 GLIBC_2.0 41 GLIBC_2.0 { 42 # Sampling of DImode arithmetic used by (at least) i386 and m68k. 43 __divdi3 44 __moddi3 45 __udivdi3 46 __umoddi3 47 48 # Exception handling support functions used by most everyone. 49 __register_frame 50 __register_frame_table 51 __deregister_frame 52 __register_frame_info 53 __deregister_frame_info 54 __frame_state_for 55 __register_frame_info_table 56 } 57 %endif 58 59 # 128 bit long double support was introduced with GCC 4.3.0 to 64bit 60 # and with GCC 4.4.0 to 32bit. These lines make the symbols to get 61 # a @@GCC_4.3.0 or @@GCC_4.4.0 attached. 62 63 %exclude { 64 __addtf3 65 __divtc3 66 __divtf3 67 __eqtf2 68 __extenddftf2 69 __extendsftf2 70 __extendxftf2 71 __fixtfdi 72 __fixtfsi 73 __fixtfti 74 __fixunstfdi 75 __fixunstfsi 76 __fixunstfti 77 __floatditf 78 __floatsitf 79 __floattitf 80 __floatunditf 81 __floatunsitf 82 __floatuntitf 83 __getf2 84 __gttf2 85 __letf2 86 __lttf2 87 __multc3 88 __multf3 89 __negtf2 90 __netf2 91 __powitf2 92 __subtf3 93 __trunctfdf2 94 __trunctfsf2 95 __trunctfxf2 96 __unordtf2 97 } 98 99 %ifdef __x86_64__ 100 # Those symbols had improper versions when they were added to gcc 4.3.0. 101 # We corrected the default version to GCC_4.3.0. But we keep the old 102 # version for backward binary compatibility. 103 GCC_3.0 { 104 __gttf2 105 __lttf2 106 __netf2 107 } 108 109 GCC_4.0.0 { 110 __divtc3 111 __multc3 112 __powitf2 113 } 114 115 GCC_4.3.0 { 116 __addtf3 117 __divtc3 118 __divtf3 119 __eqtf2 120 __extenddftf2 121 __extendsftf2 122 __extendxftf2 123 __fixtfdi 124 __fixtfsi 125 __fixtfti 126 __fixunstfdi 127 __fixunstfsi 128 __fixunstfti 129 __floatditf 130 __floatsitf 131 __floattitf 132 __floatunditf 133 __floatunsitf 134 __floatuntitf 135 __getf2 136 __gttf2 137 __letf2 138 __lttf2 139 __multc3 140 __multf3 141 __negtf2 142 __netf2 143 __powitf2 144 __subtf3 145 __trunctfdf2 146 __trunctfsf2 147 __trunctfxf2 148 __unordtf2 149 } 150 151 GCC_4.8.0 { 152 __cpu_model 153 __cpu_indicator_init 154 } 155 %else 156 GCC_4.4.0 { 157 __addtf3 158 __copysigntf3 159 __divtc3 160 __divtf3 161 __eqtf2 162 __extenddftf2 163 __extendsftf2 164 __fabstf2 165 __fixtfdi 166 __fixtfsi 167 __fixunstfdi 168 __fixunstfsi 169 __floatditf 170 __floatsitf 171 __floatunditf 172 __floatunsitf 173 __getf2 174 __gttf2 175 __letf2 176 __lttf2 177 __multc3 178 __multf3 179 __negtf2 180 __netf2 181 __powitf2 182 __subtf3 183 __trunctfdf2 184 __trunctfsf2 185 __trunctfxf2 186 __unordtf2 187 } 188 GCC_4.5.0 { 189 __extendxftf2 190 } 191 192 GCC_4.8.0 { 193 __cpu_model 194 __cpu_indicator_init 195 } 196 %endif 197 198 %inherit GCC_12.0.0 GCC_7.0.0 199 GCC_12.0.0 { 200 __divhc3 201 __mulhc3 202 __eqhf2 203 __nehf2 204 __extendhfdf2 205 __extendhfsf2 206 __extendhftf2 207 __extendhfxf2 208 __fixhfti 209 __fixunshfti 210 __floattihf 211 __floatuntihf 212 __truncdfhf2 213 __truncsfhf2 214 __trunctfhf2 215 __truncxfhf2 216 } 217 218 %inherit GCC_13.0.0 GCC_12.0.0 219 GCC_13.0.0 { 220 __extendbfsf2 221 __floattibf 222 __floatuntibf 223 __truncdfbf2 224 __truncsfbf2 225 __trunctfbf2 226 __truncxfbf2 227 __trunchfbf2 228 } 229 230 %inherit GCC_14.0.0 GCC_13.0.0 231 GCC_14.0.0 { 232 __fixxfbitint 233 __fixtfbitint 234 __floatbitintbf 235 __floatbitinthf 236 __floatbitintxf 237 __floatbitinttf 238 } 239 240 # Please notify the maintainers of libgcc-{bsd,darwin,sol2}.ver of any 241 # additions. Those version scripts usually need to be kept in sync with 242 # libgcc-glibc.ver. 243