1Short version for non-lawyers: 2 3The Rust Project is dual-licensed under Apache 2.0 and MIT 4terms. 5 6 7Longer version: 8 9Copyrights in the Rust project are retained by their contributors. No 10copyright assignment is required to contribute to the Rust project. 11 12Some files include explicit copyright notices and/or license notices. 13For full authorship information, see the version control history or 14https://thanks.rust-lang.org 15 16Except as otherwise noted (below and/or in individual files), Rust is 17licensed under the Apache License, Version 2.0 <LICENSE-APACHE> or 18<http://www.apache.org/licenses/LICENSE-2.0> or the MIT license 19<LICENSE-MIT> or <http://opensource.org/licenses/MIT>, at your option. 20 21 22The Rust Project includes packages written by third parties. 23The following third party packages are included, and carry 24their own copyright notices and license terms: 25 26* LLVM, located in src/llvm-project, is licensed under the following 27 terms. 28 29 ============================================================================== 30 The LLVM Project is under the Apache License v2.0 with LLVM Exceptions: 31 ============================================================================== 32 33 Apache License 34 Version 2.0, January 2004 35 http://www.apache.org/licenses/ 36 37 TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 38 39 1. Definitions. 40 41 "License" shall mean the terms and conditions for use, reproduction, 42 and distribution as defined by Sections 1 through 9 of this document. 43 44 "Licensor" shall mean the copyright owner or entity authorized by 45 the copyright owner that is granting the License. 46 47 "Legal Entity" shall mean the union of the acting entity and all 48 other entities that control, are controlled by, or are under common 49 control with that entity. For the purposes of this definition, 50 "control" means (i) the power, direct or indirect, to cause the 51 direction or management of such entity, whether by contract or 52 otherwise, or (ii) ownership of fifty percent (50%) or more of the 53 outstanding shares, or (iii) beneficial ownership of such entity. 54 55 "You" (or "Your") shall mean an individual or Legal Entity 56 exercising permissions granted by this License. 57 58 "Source" form shall mean the preferred form for making modifications, 59 including but not limited to software source code, documentation 60 source, and configuration files. 61 62 "Object" form shall mean any form resulting from mechanical 63 transformation or translation of a Source form, including but 64 not limited to compiled object code, generated documentation, 65 and conversions to other media types. 66 67 "Work" shall mean the work of authorship, whether in Source or 68 Object form, made available under the License, as indicated by a 69 copyright notice that is included in or attached to the work 70 (an example is provided in the Appendix below). 71 72 "Derivative Works" shall mean any work, whether in Source or Object 73 form, that is based on (or derived from) the Work and for which the 74 editorial revisions, annotations, elaborations, or other modifications 75 represent, as a whole, an original work of authorship. For the purposes 76 of this License, Derivative Works shall not include works that remain 77 separable from, or merely link (or bind by name) to the interfaces of, 78 the Work and Derivative Works thereof. 79 80 "Contribution" shall mean any work of authorship, including 81 the original version of the Work and any modifications or additions 82 to that Work or Derivative Works thereof, that is intentionally 83 submitted to Licensor for inclusion in the Work by the copyright owner 84 or by an individual or Legal Entity authorized to submit on behalf of 85 the copyright owner. For the purposes of this definition, "submitted" 86 means any form of electronic, verbal, or written communication sent 87 to the Licensor or its representatives, including but not limited to 88 communication on electronic mailing lists, source code control systems, 89 and issue tracking systems that are managed by, or on behalf of, the 90 Licensor for the purpose of discussing and improving the Work, but 91 excluding communication that is conspicuously marked or otherwise 92 designated in writing by the copyright owner as "Not a Contribution." 93 94 "Contributor" shall mean Licensor and any individual or Legal Entity 95 on behalf of whom a Contribution has been received by Licensor and 96 subsequently incorporated within the Work. 97 98 2. Grant of Copyright License. Subject to the terms and conditions of 99 this License, each Contributor hereby grants to You a perpetual, 100 worldwide, non-exclusive, no-charge, royalty-free, irrevocable 101 copyright license to reproduce, prepare Derivative Works of, 102 publicly display, publicly perform, sublicense, and distribute the 103 Work and such Derivative Works in Source or Object form. 104 105 3. Grant of Patent License. Subject to the terms and conditions of 106 this License, each Contributor hereby grants to You a perpetual, 107 worldwide, non-exclusive, no-charge, royalty-free, irrevocable 108 (except as stated in this section) patent license to make, have made, 109 use, offer to sell, sell, import, and otherwise transfer the Work, 110 where such license applies only to those patent claims licensable 111 by such Contributor that are necessarily infringed by their 112 Contribution(s) alone or by combination of their Contribution(s) 113 with the Work to which such Contribution(s) was submitted. If You 114 institute patent litigation against any entity (including a 115 cross-claim or counterclaim in a lawsuit) alleging that the Work 116 or a Contribution incorporated within the Work constitutes direct 117 or contributory patent infringement, then any patent licenses 118 granted to You under this License for that Work shall terminate 119 as of the date such litigation is filed. 120 121 4. Redistribution. You may reproduce and distribute copies of the 122 Work or Derivative Works thereof in any medium, with or without 123 modifications, and in Source or Object form, provided that You 124 meet the following conditions: 125 126 (a) You must give any other recipients of the Work or 127 Derivative Works a copy of this License; and 128 129 (b) You must cause any modified files to carry prominent notices 130 stating that You changed the files; and 131 132 (c) You must retain, in the Source form of any Derivative Works 133 that You distribute, all copyright, patent, trademark, and 134 attribution notices from the Source form of the Work, 135 excluding those notices that do not pertain to any part of 136 the Derivative Works; and 137 138 (d) If the Work includes a "NOTICE" text file as part of its 139 distribution, then any Derivative Works that You distribute must 140 include a readable copy of the attribution notices contained 141 within such NOTICE file, excluding those notices that do not 142 pertain to any part of the Derivative Works, in at least one 143 of the following places: within a NOTICE text file distributed 144 as part of the Derivative Works; within the Source form or 145 documentation, if provided along with the Derivative Works; or, 146 within a display generated by the Derivative Works, if and 147 wherever such third-party notices normally appear. The contents 148 of the NOTICE file are for informational purposes only and 149 do not modify the License. You may add Your own attribution 150 notices within Derivative Works that You distribute, alongside 151 or as an addendum to the NOTICE text from the Work, provided 152 that such additional attribution notices cannot be construed 153 as modifying the License. 154 155 You may add Your own copyright statement to Your modifications and 156 may provide additional or different license terms and conditions 157 for use, reproduction, or distribution of Your modifications, or 158 for any such Derivative Works as a whole, provided Your use, 159 reproduction, and distribution of the Work otherwise complies with 160 the conditions stated in this License. 161 162 5. Submission of Contributions. Unless You explicitly state otherwise, 163 any Contribution intentionally submitted for inclusion in the Work 164 by You to the Licensor shall be under the terms and conditions of 165 this License, without any additional terms or conditions. 166 Notwithstanding the above, nothing herein shall supersede or modify 167 the terms of any separate license agreement you may have executed 168 with Licensor regarding such Contributions. 169 170 6. Trademarks. This License does not grant permission to use the trade 171 names, trademarks, service marks, or product names of the Licensor, 172 except as required for reasonable and customary use in describing the 173 origin of the Work and reproducing the content of the NOTICE file. 174 175 7. Disclaimer of Warranty. Unless required by applicable law or 176 agreed to in writing, Licensor provides the Work (and each 177 Contributor provides its Contributions) on an "AS IS" BASIS, 178 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or 179 implied, including, without limitation, any warranties or conditions 180 of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A 181 PARTICULAR PURPOSE. You are solely responsible for determining the 182 appropriateness of using or redistributing the Work and assume any 183 risks associated with Your exercise of permissions under this License. 184 185 8. Limitation of Liability. In no event and under no legal theory, 186 whether in tort (including negligence), contract, or otherwise, 187 unless required by applicable law (such as deliberate and grossly 188 negligent acts) or agreed to in writing, shall any Contributor be 189 liable to You for damages, including any direct, indirect, special, 190 incidental, or consequential damages of any character arising as a 191 result of this License or out of the use or inability to use the 192 Work (including but not limited to damages for loss of goodwill, 193 work stoppage, computer failure or malfunction, or any and all 194 other commercial damages or losses), even if such Contributor 195 has been advised of the possibility of such damages. 196 197 9. Accepting Warranty or Additional Liability. While redistributing 198 the Work or Derivative Works thereof, You may choose to offer, 199 and charge a fee for, acceptance of support, warranty, indemnity, 200 or other liability obligations and/or rights consistent with this 201 License. However, in accepting such obligations, You may act only 202 on Your own behalf and on Your sole responsibility, not on behalf 203 of any other Contributor, and only if You agree to indemnify, 204 defend, and hold each Contributor harmless for any liability 205 incurred by, or claims asserted against, such Contributor by reason 206 of your accepting any such warranty or additional liability. 207 208 END OF TERMS AND CONDITIONS 209 210 APPENDIX: How to apply the Apache License to your work. 211 212 To apply the Apache License to your work, attach the following 213 boilerplate notice, with the fields enclosed by brackets "[]" 214 replaced with your own identifying information. (Don't include 215 the brackets!) The text should be enclosed in the appropriate 216 comment syntax for the file format. We also recommend that a 217 file or class name and description of purpose be included on the 218 same "printed page" as the copyright notice for easier 219 identification within third-party archives. 220 221 Copyright [yyyy] [name of copyright owner] 222 223 Licensed under the Apache License, Version 2.0 (the "License"); 224 you may not use this file except in compliance with the License. 225 You may obtain a copy of the License at 226 227 http://www.apache.org/licenses/LICENSE-2.0 228 229 Unless required by applicable law or agreed to in writing, software 230 distributed under the License is distributed on an "AS IS" BASIS, 231 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 232 See the License for the specific language governing permissions and 233 limitations under the License. 234 235 236 ---- LLVM Exceptions to the Apache 2.0 License ---- 237 238 As an exception, if, as a result of your compiling your source code, portions 239 of this Software are embedded into an Object form of such source code, you 240 may redistribute such embedded portions in such Object form without complying 241 with the conditions of Sections 4(a), 4(b) and 4(d) of the License. 242 243 In addition, if you combine or link compiled forms of this Software with 244 software that is licensed under the GPLv2 ("Combined Software") and if a 245 court of competent jurisdiction determines that the patent provision (Section 246 3), the indemnity provision (Section 9) or other Section of the License 247 conflicts with the conditions of the GPLv2, you may retroactively and 248 prospectively choose to deem waived or otherwise exclude such Section(s) of 249 the License, but only in their entirety and only with respect to the Combined 250 Software. 251 252 ============================================================================== 253 Software from third parties included in the LLVM Project: 254 ============================================================================== 255 The LLVM Project contains third party software which is under different license 256 terms. All such code will be identified clearly using at least one of two 257 mechanisms: 258 1) It will be in a separate directory tree with its own `LICENSE.txt` or 259 `LICENSE` file at the top containing the specific license and restrictions 260 which apply to that software, or 261 2) It will contain specific license and restriction terms at the top of every 262 file. 263 264 ============================================================================== 265 Legacy LLVM License (https://llvm.org/docs/DeveloperPolicy.html#legacy): 266 ============================================================================== 267 University of Illinois/NCSA 268 Open Source License 269 270 Copyright (c) 2003-2019 University of Illinois at Urbana-Champaign. 271 All rights reserved. 272 273 Developed by: 274 275 LLVM Team 276 277 University of Illinois at Urbana-Champaign 278 279 http://llvm.org 280 281 Permission is hereby granted, free of charge, to any person obtaining a copy of 282 this software and associated documentation files (the "Software"), to deal with 283 the Software without restriction, including without limitation the rights to 284 use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies 285 of the Software, and to permit persons to whom the Software is furnished to do 286 so, subject to the following conditions: 287 288 * Redistributions of source code must retain the above copyright notice, 289 this list of conditions and the following disclaimers. 290 291 * Redistributions in binary form must reproduce the above copyright notice, 292 this list of conditions and the following disclaimers in the 293 documentation and/or other materials provided with the distribution. 294 295 * Neither the names of the LLVM Team, University of Illinois at 296 Urbana-Champaign, nor the names of its contributors may be used to 297 endorse or promote products derived from this Software without specific 298 prior written permission. 299 300 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 301 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS 302 FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 303 CONTRIBUTORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 304 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 305 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS WITH THE 306 SOFTWARE. 307 308* Portions of the FFI code for interacting with the native ABI 309 is derived from the Clay programming language, which carries 310 the following license. 311 312 Copyright (C) 2008-2010 Tachyon Technologies. 313 All rights reserved. 314 315 Redistribution and use in source and binary forms, with 316 or without modification, are permitted provided that the 317 following conditions are met: 318 319 1. Redistributions of source code must retain the above 320 copyright notice, this list of conditions and the 321 following disclaimer. 322 323 2. Redistributions in binary form must reproduce the 324 above copyright notice, this list of conditions and 325 the following disclaimer in the documentation and/or 326 other materials provided with the distribution. 327 328 THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR 329 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 330 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 331 PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 332 DEVELOPERS AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 333 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 334 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 335 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 336 USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 337 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 338 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 339 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE 340 USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 341 OF SUCH DAMAGE. 342 343* Portions of internationalization code use code or data from Unicode, which 344 carry the following license: 345 346 UNICODE, INC. LICENSE AGREEMENT - DATA FILES AND SOFTWARE 347 348 See Terms of Use <https://www.unicode.org/copyright.html> 349 for definitions of Unicode Inc.’s Data Files and Software. 350 351 NOTICE TO USER: Carefully read the following legal agreement. 352 BY DOWNLOADING, INSTALLING, COPYING OR OTHERWISE USING UNICODE INC.'S 353 DATA FILES ("DATA FILES"), AND/OR SOFTWARE ("SOFTWARE"), 354 YOU UNEQUIVOCALLY ACCEPT, AND AGREE TO BE BOUND BY, ALL OF THE 355 TERMS AND CONDITIONS OF THIS AGREEMENT. 356 IF YOU DO NOT AGREE, DO NOT DOWNLOAD, INSTALL, COPY, DISTRIBUTE OR USE 357 THE DATA FILES OR SOFTWARE. 358 359 COPYRIGHT AND PERMISSION NOTICE 360 361 Copyright © 1991-2022 Unicode, Inc. All rights reserved. 362 Distributed under the Terms of Use in https://www.unicode.org/copyright.html. 363 364 Permission is hereby granted, free of charge, to any person obtaining 365 a copy of the Unicode data files and any associated documentation 366 (the "Data Files") or Unicode software and any associated documentation 367 (the "Software") to deal in the Data Files or Software 368 without restriction, including without limitation the rights to use, 369 copy, modify, merge, publish, distribute, and/or sell copies of 370 the Data Files or Software, and to permit persons to whom the Data Files 371 or Software are furnished to do so, provided that either 372 (a) this copyright and permission notice appear with all copies 373 of the Data Files or Software, or 374 (b) this copyright and permission notice appear in associated 375 Documentation. 376 377 THE DATA FILES AND SOFTWARE ARE PROVIDED "AS IS", WITHOUT WARRANTY OF 378 ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE 379 WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 380 NONINFRINGEMENT OF THIRD PARTY RIGHTS. 381 IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN THIS 382 NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL 383 DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, 384 DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER 385 TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 386 PERFORMANCE OF THE DATA FILES OR SOFTWARE. 387 388 Except as contained in this notice, the name of a copyright holder 389 shall not be used in advertising or otherwise to promote the sale, 390 use or other dealings in these Data Files or Software without prior 391 written authorization of the copyright holder. 392