├── .gitmodules ├── rustfmt.toml ├── Cargo.toml ├── .gitignore ├── LICENSE-MIT ├── Cargo.lock ├── src └── main.rs └── LICENSE-APACHE /.gitmodules: -------------------------------------------------------------------------------- 1 | [submodule "xtensa-overlays"] 2 | path = xtensa-overlays 3 | url = https://github.com/espressif/xtensa-overlays.git 4 | -------------------------------------------------------------------------------- /rustfmt.toml: -------------------------------------------------------------------------------- 1 | edition = "2018" 2 | enum_discrim_align_threshold = 25 3 | group_imports = "StdExternalCrate" 4 | imports_granularity = "Crate" 5 | imports_layout = "HorizontalVertical" 6 | normalize_comments = true 7 | wrap_comments = true 8 | -------------------------------------------------------------------------------- /Cargo.toml: -------------------------------------------------------------------------------- 1 | [package] 2 | name = "xtensa-core-isa" 3 | version = "0.1.0" 4 | edition = "2021" 5 | 6 | [dependencies] 7 | anyhow = "1.0" 8 | enum-as-inner = "0.3" 9 | regex = "1.5" 10 | strum = "0.23" 11 | strum_macros = "0.23" 12 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # Generated by Cargo 2 | # will have compiled files and executables 3 | debug/ 4 | target/ 5 | 6 | # These are backup files generated by rustfmt 7 | **/*.rs.bk 8 | 9 | # MSVC Windows builds of rustc generate these, which store debugging information 10 | *.pdb 11 | -------------------------------------------------------------------------------- /LICENSE-MIT: -------------------------------------------------------------------------------- 1 | Copyright 2021 esp-rs 2 | 3 | Permission is hereby granted, free of charge, to any 4 | person obtaining a copy of this software and associated 5 | documentation files (the "Software"), to deal in the 6 | Software without restriction, including without 7 | limitation the rights to use, copy, modify, merge, 8 | publish, distribute, sublicense, and/or sell copies of 9 | the Software, and to permit persons to whom the Software 10 | is furnished to do so, subject to the following 11 | conditions: 12 | 13 | The above copyright notice and this permission notice 14 | shall be included in all copies or substantial portions 15 | of the Software. 16 | 17 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF 18 | ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED 19 | TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A 20 | PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT 21 | SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY 22 | CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 23 | OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR 24 | IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 25 | DEALINGS IN THE SOFTWARE. 26 | -------------------------------------------------------------------------------- /Cargo.lock: -------------------------------------------------------------------------------- 1 | # This file is automatically @generated by Cargo. 2 | # It is not intended for manual editing. 3 | version = 3 4 | 5 | [[package]] 6 | name = "aho-corasick" 7 | version = "0.7.18" 8 | source = "registry+https://github.com/rust-lang/crates.io-index" 9 | checksum = "1e37cfd5e7657ada45f742d6e99ca5788580b5c529dc78faf11ece6dc702656f" 10 | dependencies = [ 11 | "memchr", 12 | ] 13 | 14 | [[package]] 15 | name = "anyhow" 16 | version = "1.0.51" 17 | source = "registry+https://github.com/rust-lang/crates.io-index" 18 | checksum = "8b26702f315f53b6071259e15dd9d64528213b44d61de1ec926eca7715d62203" 19 | 20 | [[package]] 21 | name = "enum-as-inner" 22 | version = "0.3.3" 23 | source = "registry+https://github.com/rust-lang/crates.io-index" 24 | checksum = "7c5f0096a91d210159eceb2ff5e1c4da18388a170e1e3ce948aac9c8fdbbf595" 25 | dependencies = [ 26 | "heck", 27 | "proc-macro2", 28 | "quote", 29 | "syn", 30 | ] 31 | 32 | [[package]] 33 | name = "heck" 34 | version = "0.3.3" 35 | source = "registry+https://github.com/rust-lang/crates.io-index" 36 | checksum = "6d621efb26863f0e9924c6ac577e8275e5e6b77455db64ffa6c65c904e9e132c" 37 | dependencies = [ 38 | "unicode-segmentation", 39 | ] 40 | 41 | [[package]] 42 | name = "memchr" 43 | version = "2.4.1" 44 | source = "registry+https://github.com/rust-lang/crates.io-index" 45 | checksum = "308cc39be01b73d0d18f82a0e7b2a3df85245f84af96fdddc5d202d27e47b86a" 46 | 47 | [[package]] 48 | name = "proc-macro2" 49 | version = "1.0.34" 50 | source = "registry+https://github.com/rust-lang/crates.io-index" 51 | checksum = "2f84e92c0f7c9d58328b85a78557813e4bd845130db68d7184635344399423b1" 52 | dependencies = [ 53 | "unicode-xid", 54 | ] 55 | 56 | [[package]] 57 | name = "quote" 58 | version = "1.0.10" 59 | source = "registry+https://github.com/rust-lang/crates.io-index" 60 | checksum = "38bc8cc6a5f2e3655e0899c1b848643b2562f853f114bfec7be120678e3ace05" 61 | dependencies = [ 62 | "proc-macro2", 63 | ] 64 | 65 | [[package]] 66 | name = "regex" 67 | version = "1.5.4" 68 | source = "registry+https://github.com/rust-lang/crates.io-index" 69 | checksum = "d07a8629359eb56f1e2fb1652bb04212c072a87ba68546a04065d525673ac461" 70 | dependencies = [ 71 | "aho-corasick", 72 | "memchr", 73 | "regex-syntax", 74 | ] 75 | 76 | [[package]] 77 | name = "regex-syntax" 78 | version = "0.6.25" 79 | source = "registry+https://github.com/rust-lang/crates.io-index" 80 | checksum = "f497285884f3fcff424ffc933e56d7cbca511def0c9831a7f9b5f6153e3cc89b" 81 | 82 | [[package]] 83 | name = "rustversion" 84 | version = "1.0.6" 85 | source = "registry+https://github.com/rust-lang/crates.io-index" 86 | checksum = "f2cc38e8fa666e2de3c4aba7edeb5ffc5246c1c2ed0e3d17e560aeeba736b23f" 87 | 88 | [[package]] 89 | name = "strum" 90 | version = "0.23.0" 91 | source = "registry+https://github.com/rust-lang/crates.io-index" 92 | checksum = "cae14b91c7d11c9a851d3fbc80a963198998c2a64eec840477fa92d8ce9b70bb" 93 | 94 | [[package]] 95 | name = "strum_macros" 96 | version = "0.23.1" 97 | source = "registry+https://github.com/rust-lang/crates.io-index" 98 | checksum = "5bb0dc7ee9c15cea6199cde9a127fa16a4c5819af85395457ad72d68edc85a38" 99 | dependencies = [ 100 | "heck", 101 | "proc-macro2", 102 | "quote", 103 | "rustversion", 104 | "syn", 105 | ] 106 | 107 | [[package]] 108 | name = "syn" 109 | version = "1.0.82" 110 | source = "registry+https://github.com/rust-lang/crates.io-index" 111 | checksum = "8daf5dd0bb60cbd4137b1b587d2fc0ae729bc07cf01cd70b36a1ed5ade3b9d59" 112 | dependencies = [ 113 | "proc-macro2", 114 | "quote", 115 | "unicode-xid", 116 | ] 117 | 118 | [[package]] 119 | name = "unicode-segmentation" 120 | version = "1.8.0" 121 | source = "registry+https://github.com/rust-lang/crates.io-index" 122 | checksum = "8895849a949e7845e06bd6dc1aa51731a103c42707010a5b591c0038fb73385b" 123 | 124 | [[package]] 125 | name = "unicode-xid" 126 | version = "0.2.2" 127 | source = "registry+https://github.com/rust-lang/crates.io-index" 128 | checksum = "8ccb82d61f80a663efe1f787a51b16b5a51e3314d6ac365b08639f52387b33f3" 129 | 130 | [[package]] 131 | name = "xtensa-core-isa" 132 | version = "0.1.0" 133 | dependencies = [ 134 | "anyhow", 135 | "enum-as-inner", 136 | "regex", 137 | "strum", 138 | "strum_macros", 139 | ] 140 | -------------------------------------------------------------------------------- /src/main.rs: -------------------------------------------------------------------------------- 1 | use std::{collections::HashMap, env, fs, path::PathBuf, str::FromStr}; 2 | 3 | use anyhow::Result; 4 | use enum_as_inner::EnumAsInner; 5 | use regex::Regex; 6 | use strum::IntoEnumIterator; 7 | use strum_macros::{Display, EnumIter, EnumString}; 8 | 9 | // Note that for the ESP32, since we are not using an RTOS we need to use the 10 | // 'xtensa_esp108' overlay instead of the 'xtensa_esp32' overlay. 11 | // https://docs.espressif.com/projects/esp-idf/en/v3.3.5/api-guides/jtag-debugging/tips-and-quirks.html 12 | #[derive(Debug, Clone, Copy, PartialEq, Display, EnumIter)] 13 | enum Chip { 14 | #[strum(to_string = "xtensa_esp108")] 15 | Esp32, 16 | #[strum(to_string = "xtensa_esp32s2")] 17 | Esp32s2, 18 | #[strum(to_string = "xtensa_esp32s3")] 19 | Esp32s3, 20 | #[strum(to_string = "xtensa_lx106")] 21 | Esp8266, 22 | } 23 | 24 | impl Chip { 25 | fn core_isa_path(&self) -> Result { 26 | let path = PathBuf::from(env!("CARGO_MANIFEST_DIR")) 27 | .join("xtensa-overlays") 28 | .join(self.to_string()) 29 | .join("newlib/newlib/libc/sys/xtensa/include/xtensa/config/core-isa.h") 30 | .canonicalize()?; 31 | 32 | Ok(path) 33 | } 34 | } 35 | 36 | #[derive(Debug, Clone, Copy, PartialEq, EnumString)] 37 | enum InterruptType { 38 | #[strum(serialize = "XTHAL_INTTYPE_EXTERN_EDGE")] 39 | ExternEdge, 40 | #[strum(serialize = "XTHAL_INTTYPE_EXTERN_LEVEL")] 41 | ExternLevel, 42 | #[strum(serialize = "XTHAL_INTTYPE_NMI")] 43 | Nmi, 44 | #[strum(serialize = "XTHAL_INTTYPE_PROFILING")] 45 | Profiling, 46 | #[strum(serialize = "XTHAL_INTTYPE_SOFTWARE")] 47 | Software, 48 | #[strum(serialize = "XTHAL_INTTYPE_TIMER")] 49 | Timer, 50 | #[strum(serialize = "XTHAL_TIMER_UNCONFIGURED")] 51 | TimerUnconfigured, 52 | } 53 | 54 | #[derive(Debug, Clone, PartialEq, EnumAsInner)] 55 | enum Value { 56 | Integer(i64), 57 | Interrupt(InterruptType), 58 | String(String), 59 | } 60 | 61 | fn main() -> Result<()> { 62 | for chip in Chip::iter() { 63 | println!("{}", chip); 64 | 65 | // Parse the definitions for each chip from its 'core-isa.h' file. Note that for 66 | // the ESP32 there is a single definition which requires special handling. 67 | let mut config = parse_defines(chip)?; 68 | if chip == Chip::Esp32 { 69 | fix_esp32_xchal_use_memctl(&mut config); 70 | } 71 | 72 | println!("\n{:#?}\n\n", config); 73 | } 74 | 75 | Ok(()) 76 | } 77 | 78 | fn parse_defines(chip: Chip) -> Result> { 79 | let re_define = Regex::new(r"^#define[\s]+([a-zA-Z\d_]+)[\s]+([^\s]+)")?; 80 | let re_ident = Regex::new(r"^[a-zA-Z\d_]+$")?; 81 | let re_string = Regex::new(r#""([^"]+)""#)?; 82 | 83 | // Iterate through each line containing a definition. Attempt to match the 84 | // various components and map identifiers to values. 85 | let mut map: HashMap = HashMap::new(); 86 | for define in find_all_defines(chip)? { 87 | if !re_define.is_match(&define) { 88 | println!("Define not matched: {}", define); 89 | continue; 90 | } 91 | 92 | let captures = re_define.captures(&define).unwrap(); 93 | let identifier = captures.get(1).unwrap().as_str().to_string(); 94 | let value = captures.get(2).unwrap().as_str().to_string(); 95 | 96 | let value = if let Ok(integer) = value.parse::() { 97 | // Decimal integer literal 98 | Value::Integer(integer) 99 | } else if let Ok(integer) = i64::from_str_radix(&value.replace("0x", ""), 16) { 100 | // Hexadecimal integer literal 101 | Value::Integer(integer) 102 | } else if let Ok(interrupt) = InterruptType::from_str(&value) { 103 | // Interrupt type 104 | Value::Interrupt(interrupt) 105 | } else if re_string.is_match(&value) { 106 | // String 107 | Value::String(value.replace("\"", "")) 108 | } else if re_ident.is_match(&value) && map.contains_key(&value) { 109 | // Identifier 110 | map.get(&value).unwrap().to_owned() 111 | } else { 112 | // We will handle this particular case after, so no need to report it. 113 | if chip != Chip::Esp32 && identifier != "XCHAL_USE_MEMCTL" { 114 | println!("Unable to process definition: {} = {}", identifier, value); 115 | } 116 | continue; 117 | }; 118 | 119 | map.insert(identifier, value); 120 | } 121 | 122 | Ok(map) 123 | } 124 | 125 | fn find_all_defines(chip: Chip) -> Result> { 126 | let path = chip.core_isa_path()?; 127 | let lines = fs::read_to_string(path)? 128 | .lines() 129 | .filter_map(|line| { 130 | if line.starts_with("#define") { 131 | Some(line.to_string()) 132 | } else { 133 | None 134 | } 135 | }) 136 | .collect::>(); 137 | 138 | Ok(lines) 139 | } 140 | 141 | fn fix_esp32_xchal_use_memctl(map: &mut HashMap) { 142 | // NOTE: the value of `use_memctl` should subsequently be AND'ed with 143 | // '(XCHAL_HW_MIN_VERSION >= XTENSA_HWVERSION_RE_2012_0)', however 144 | // the latter identifier is not defined anywhere. 145 | macro_rules! to_integer { 146 | ($identifier:expr) => { 147 | map.get($identifier) 148 | .unwrap() 149 | .as_integer() 150 | .unwrap() 151 | .to_owned() 152 | }; 153 | } 154 | 155 | let loop_buffer_size = to_integer!("XCHAL_LOOP_BUFFER_SIZE"); 156 | let dcache_is_coherent = to_integer!("XCHAL_DCACHE_IS_COHERENT"); 157 | let have_icache_dyn_ways = to_integer!("XCHAL_HAVE_ICACHE_DYN_WAYS"); 158 | let have_dcache_dyn_ways = to_integer!("XCHAL_HAVE_DCACHE_DYN_WAYS"); 159 | 160 | let use_memctl = (loop_buffer_size > 0) 161 | || dcache_is_coherent != 0 162 | || have_icache_dyn_ways != 0 163 | || have_dcache_dyn_ways != 0; 164 | 165 | let identifier = String::from("XCHAL_USE_MEMCTL"); 166 | let value = Value::Integer(use_memctl as i64); 167 | 168 | map.insert(identifier, value); 169 | } 170 | -------------------------------------------------------------------------------- /LICENSE-APACHE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. Definitions. 8 | 9 | "License" shall mean the terms and conditions for use, reproduction, 10 | and distribution as defined by Sections 1 through 9 of this document. 11 | 12 | "Licensor" shall mean the copyright owner or entity authorized by 13 | the copyright owner that is granting the License. 14 | 15 | "Legal Entity" shall mean the union of the acting entity and all 16 | other entities that control, are controlled by, or are under common 17 | control with that entity. For the purposes of this definition, 18 | "control" means (i) the power, direct or indirect, to cause the 19 | direction or management of such entity, whether by contract or 20 | otherwise, or (ii) ownership of fifty percent (50%) or more of the 21 | outstanding shares, or (iii) beneficial ownership of such entity. 22 | 23 | "You" (or "Your") shall mean an individual or Legal Entity 24 | exercising permissions granted by this License. 25 | 26 | "Source" form shall mean the preferred form for making modifications, 27 | including but not limited to software source code, documentation 28 | source, and configuration files. 29 | 30 | "Object" form shall mean any form resulting from mechanical 31 | transformation or translation of a Source form, including but 32 | not limited to compiled object code, generated documentation, 33 | and conversions to other media types. 34 | 35 | "Work" shall mean the work of authorship, whether in Source or 36 | Object form, made available under the License, as indicated by a 37 | copyright notice that is included in or attached to the work 38 | (an example is provided in the Appendix below). 39 | 40 | "Derivative Works" shall mean any work, whether in Source or Object 41 | form, that is based on (or derived from) the Work and for which the 42 | editorial revisions, annotations, elaborations, or other modifications 43 | represent, as a whole, an original work of authorship. For the purposes 44 | of this License, Derivative Works shall not include works that remain 45 | separable from, or merely link (or bind by name) to the interfaces of, 46 | the Work and Derivative Works thereof. 47 | 48 | "Contribution" shall mean any work of authorship, including 49 | the original version of the Work and any modifications or additions 50 | to that Work or Derivative Works thereof, that is intentionally 51 | submitted to Licensor for inclusion in the Work by the copyright owner 52 | or by an individual or Legal Entity authorized to submit on behalf of 53 | the copyright owner. For the purposes of this definition, "submitted" 54 | means any form of electronic, verbal, or written communication sent 55 | to the Licensor or its representatives, including but not limited to 56 | communication on electronic mailing lists, source code control systems, 57 | and issue tracking systems that are managed by, or on behalf of, the 58 | Licensor for the purpose of discussing and improving the Work, but 59 | excluding communication that is conspicuously marked or otherwise 60 | designated in writing by the copyright owner as "Not a Contribution." 61 | 62 | "Contributor" shall mean Licensor and any individual or Legal Entity 63 | on behalf of whom a Contribution has been received by Licensor and 64 | subsequently incorporated within the Work. 65 | 66 | 2. Grant of Copyright License. Subject to the terms and conditions of 67 | this License, each Contributor hereby grants to You a perpetual, 68 | worldwide, non-exclusive, no-charge, royalty-free, irrevocable 69 | copyright license to reproduce, prepare Derivative Works of, 70 | publicly display, publicly perform, sublicense, and distribute the 71 | Work and such Derivative Works in Source or Object form. 72 | 73 | 3. Grant of Patent License. Subject to the terms and conditions of 74 | this License, each Contributor hereby grants to You a perpetual, 75 | worldwide, non-exclusive, no-charge, royalty-free, irrevocable 76 | (except as stated in this section) patent license to make, have made, 77 | use, offer to sell, sell, import, and otherwise transfer the Work, 78 | where such license applies only to those patent claims licensable 79 | by such Contributor that are necessarily infringed by their 80 | Contribution(s) alone or by combination of their Contribution(s) 81 | with the Work to which such Contribution(s) was submitted. If You 82 | institute patent litigation against any entity (including a 83 | cross-claim or counterclaim in a lawsuit) alleging that the Work 84 | or a Contribution incorporated within the Work constitutes direct 85 | or contributory patent infringement, then any patent licenses 86 | granted to You under this License for that Work shall terminate 87 | as of the date such litigation is filed. 88 | 89 | 4. Redistribution. You may reproduce and distribute copies of the 90 | Work or Derivative Works thereof in any medium, with or without 91 | modifications, and in Source or Object form, provided that You 92 | meet the following conditions: 93 | 94 | (a) You must give any other recipients of the Work or 95 | Derivative Works a copy of this License; and 96 | 97 | (b) You must cause any modified files to carry prominent notices 98 | stating that You changed the files; and 99 | 100 | (c) You must retain, in the Source form of any Derivative Works 101 | that You distribute, all copyright, patent, trademark, and 102 | attribution notices from the Source form of the Work, 103 | excluding those notices that do not pertain to any part of 104 | the Derivative Works; and 105 | 106 | (d) If the Work includes a "NOTICE" text file as part of its 107 | distribution, then any Derivative Works that You distribute must 108 | include a readable copy of the attribution notices contained 109 | within such NOTICE file, excluding those notices that do not 110 | pertain to any part of the Derivative Works, in at least one 111 | of the following places: within a NOTICE text file distributed 112 | as part of the Derivative Works; within the Source form or 113 | documentation, if provided along with the Derivative Works; or, 114 | within a display generated by the Derivative Works, if and 115 | wherever such third-party notices normally appear. The contents 116 | of the NOTICE file are for informational purposes only and 117 | do not modify the License. You may add Your own attribution 118 | notices within Derivative Works that You distribute, alongside 119 | or as an addendum to the NOTICE text from the Work, provided 120 | that such additional attribution notices cannot be construed 121 | as modifying the License. 122 | 123 | You may add Your own copyright statement to Your modifications and 124 | may provide additional or different license terms and conditions 125 | for use, reproduction, or distribution of Your modifications, or 126 | for any such Derivative Works as a whole, provided Your use, 127 | reproduction, and distribution of the Work otherwise complies with 128 | the conditions stated in this License. 129 | 130 | 5. Submission of Contributions. Unless You explicitly state otherwise, 131 | any Contribution intentionally submitted for inclusion in the Work 132 | by You to the Licensor shall be under the terms and conditions of 133 | this License, without any additional terms or conditions. 134 | Notwithstanding the above, nothing herein shall supersede or modify 135 | the terms of any separate license agreement you may have executed 136 | with Licensor regarding such Contributions. 137 | 138 | 6. Trademarks. This License does not grant permission to use the trade 139 | names, trademarks, service marks, or product names of the Licensor, 140 | except as required for reasonable and customary use in describing the 141 | origin of the Work and reproducing the content of the NOTICE file. 142 | 143 | 7. Disclaimer of Warranty. Unless required by applicable law or 144 | agreed to in writing, Licensor provides the Work (and each 145 | Contributor provides its Contributions) on an "AS IS" BASIS, 146 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or 147 | implied, including, without limitation, any warranties or conditions 148 | of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A 149 | PARTICULAR PURPOSE. You are solely responsible for determining the 150 | appropriateness of using or redistributing the Work and assume any 151 | risks associated with Your exercise of permissions under this License. 152 | 153 | 8. Limitation of Liability. In no event and under no legal theory, 154 | whether in tort (including negligence), contract, or otherwise, 155 | unless required by applicable law (such as deliberate and grossly 156 | negligent acts) or agreed to in writing, shall any Contributor be 157 | liable to You for damages, including any direct, indirect, special, 158 | incidental, or consequential damages of any character arising as a 159 | result of this License or out of the use or inability to use the 160 | Work (including but not limited to damages for loss of goodwill, 161 | work stoppage, computer failure or malfunction, or any and all 162 | other commercial damages or losses), even if such Contributor 163 | has been advised of the possibility of such damages. 164 | 165 | 9. Accepting Warranty or Additional Liability. While redistributing 166 | the Work or Derivative Works thereof, You may choose to offer, 167 | and charge a fee for, acceptance of support, warranty, indemnity, 168 | or other liability obligations and/or rights consistent with this 169 | License. However, in accepting such obligations, You may act only 170 | on Your own behalf and on Your sole responsibility, not on behalf 171 | of any other Contributor, and only if You agree to indemnify, 172 | defend, and hold each Contributor harmless for any liability 173 | incurred by, or claims asserted against, such Contributor by reason 174 | of your accepting any such warranty or additional liability. 175 | 176 | END OF TERMS AND CONDITIONS 177 | 178 | APPENDIX: How to apply the Apache License to your work. 179 | 180 | To apply the Apache License to your work, attach the following 181 | boilerplate notice, with the fields enclosed by brackets "[]" 182 | replaced with your own identifying information. (Don't include 183 | the brackets!) The text should be enclosed in the appropriate 184 | comment syntax for the file format. We also recommend that a 185 | file or class name and description of purpose be included on the 186 | same "printed page" as the copyright notice for easier 187 | identification within third-party archives. 188 | 189 | Copyright 2021 esp-rs 190 | 191 | Licensed under the Apache License, Version 2.0 (the "License"); 192 | you may not use this file except in compliance with the License. 193 | You may obtain a copy of the License at 194 | 195 | http://www.apache.org/licenses/LICENSE-2.0 196 | 197 | Unless required by applicable law or agreed to in writing, software 198 | distributed under the License is distributed on an "AS IS" BASIS, 199 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 200 | See the License for the specific language governing permissions and 201 | limitations under the License. 202 | --------------------------------------------------------------------------------