49 lines
17 KiB
Plaintext
49 lines
17 KiB
Plaintext
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!<arch>
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/ 0 0 0 0 70 `
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?Ê_ZN11cpufeatures7aarch6415getauxval_hwcap17h9c9426e8295c3001E // 72 `
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cpufeatures-baed92e602c4b9da.cpufeatures.e95d1226cb668f00-cgu.0.rcgu.o/
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lib.rmeta/ 0 0 0 644 16000 `
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ELF · = @ @ GNU À rust
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»: #rustc 1.96.0 (ac68faa20 2026-05-25)ÁíàÄTËŸ ÜJîÄ)'ß\¥! -3d1337db07d0b3aeÁ –ù«< fÅþ¦®Ž
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žaa…Ý -54993f73e3057ce2Á ¤°ð ¾ä-±($²ï=©Ã -7e98a21bfd32b0edÁ‰ __detect_target_featuresÁÄ»
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ý appleÁ¼õ checkÁ,÷ ý×¼± sysctlbynameÁd÷! ý×¼Ï! ³Ä‚( ý×¼�' ú linuxÁœ¦' ú androidÁ¬»' üŒ'F üˆ'K ¾\¿ì¾ÜŠ ô œ ìôœéìõ´þüè- µ $³ µ $¨ í € __unless_target_featuresÁ ³ getauxval_hwcapÁ __expand_check_macroÁ hwcapsÁ AESÁ DITÁ SHA2Á SHA3Á SM4Á æ æ üŸ#
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|Ÿ ÿI Œ± €J ’ ü†=
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’ <• $F ÿI ’C €J ’ _Á |á
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”J ’ üÈ) ’ <× $@ ”J ’ libc::HWCAP_DITÁ „�
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‚J ’ üö+ ’ <† $@ ‚J ’ libc::HWCAP_SHA2Á üÀ%
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„À �J ’”Ó ‘J ’ ü¦@
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’ <¶ $F �J ’C ‘J ’ _Á ü„!
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|„ ŽJ ’|– �J ’ üë; ’ <ú $F ŽJ ’C �J ’ _Á í ÓÄ‘ ³Ä¤ æ ô æ(Ž
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ü Ô/ ü O L This crate provides macros for runtime CPU feature detection. It's intendedÁ üPR O as a stopgap until Rust [RFC 2725] adding first-class target feature detectionÁ ü£' $ macros to `libcore` is implemented.Á Ëú üÏ$ ! # Supported target architecturesÁ ôú üøK H *NOTE: target features with an asterisk are unstable (nightly-only) andÁ üÄI F subject to change to match upstream name changes in the Rust standardÁ dŽ library.Á ›ú „Ÿ
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## `aarch64`Á °ú ü´\ Y Linux, iOS, and macOS/ARM only (ARM64 does not support OS-independent feature detection)Á ‘ú ¤• Target features:Á ªú d® - `aes`*Á l»
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- `sha2`*Á lÉ
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- `sha3`*Á ×ú tÛ Linux onlyÁ êú dî - `sm4`*Á ûú ¤ÿ ## `loongarch64`Á ”ú ü˜N K Linux only (LoongArch64 does not support OS-independent feature detection)Á çú ¤ë› €ú d„ - `lam`*Á d‘ - `ual`*Á dž - `fpu`*Á d« - `lsx`*Á l¸
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- `lasx`*Á tÆ - `crc32`*Á „Õ
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- `complex`*Á |æ - `crypto`*Á dö - `lvz`*Á „ƒ
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- `lbt.x86`*Á „”
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- `lbt.arm`*Á Œ¥ - `lbt.mips`*Á d· - `ptw`*Á Äú ¬È ## `x86`/`x86_64`Á Þú üâ( % OS independent and `no_std`-friendlyÁ ‹ú ¤�› ¤ú \¨ - `adx`Á \´ - `aes`Á \À - `avx`Á dÌ - `avx2`Á ŒÙ - `avx512bw`*Á Œë - `avx512cd`*Á Œý - `avx512dq`*Á Œ� - `avx512er`*Á „¡
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- `avx512f`*Á œ² - `avx512ifma`*Á ŒÆ - `avx512pf`*Á ŒØ - `avx512vl`*Á dê - `bmi1`Á d÷ - `bmi2`Á d„
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- `fma`,Á \‘
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- `mmx`Á Œ�
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- `pclmulqdq`Á t¯
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- `popcnt`Á t¾
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- `rdrand`Á tÍ
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- `rdseed`Á \Ü
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- `sgx`Á \è
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- `sha`Á \ô
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- `sse`Á d€ - `sse2`Á d� - `sse3`Á tš - `sse4.1`Á t© - `sse4.2`Á l¸
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- `ssse3`Á Æ ú üÊ L I If you would like detection support for a target feature which is not onÁ ü— 0 - this list, please [open a GitHub issue][gh].Á È ú lÌ
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# ExampleÁ <Ú ```Á üâ > ; # #[cfg(any(target_arch = "x86", target_arch = "x86_64"))]Á <¡
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# {Á ü©
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0 - // This macro creates `cpuid_aes_sha` moduleÁ üÚ
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3 0 cpufeatures::new!(cpuid_aes_sha, "aes", "sha");Á Žú ü’A > // `token` is a Zero Sized Type (ZST) value, which guaranteesÁ üÔ? < // that underlying static storage got properly initialized,Á ü”1 . // which allows to omit initialization branchÁ üÆ@ = let token: cpuid_aes_sha::InitToken = cpuid_aes_sha::init();Á ‡ú ¤‹ if token.get() {Á ü = : println!("CPU supports both SHA and AES extensions");Á dÞ } else {Á üë= : println!("SHA and AES extensions are not supported");Á ,© }Á ¯ú ü³@ = // If stored value needed only once you can get stored valueÁ Ìô // omitting the tokenÁ üŽ# let val = cpuid_aes_sha::get();Á ü²! assert_eq!(val, token.get());Á Ôú üØ4 1 // Additionally you can get both token and valueÁ ü�1 . let (token, val) = cpuid_aes_sha::init_get();Á ü¿!î" <á # }Á <éê ñú üõL I Note that if all tested target features are enabled via compiler optionsÁ üÂK H (e.g. by using `RUSTFLAGS`), the `get` method will always return `true`Á üŽC @ and `init` will not use CPUID instruction. Such behavior allowsÁ üÒ3 0 compiler to completely eliminate fallback code.Á †ú üŠE B After first call macro caches result and returns it in subsequentÁ üÐ5 2 calls, thus runtime overhead for them is minimal.Á †ú üŠ; 8 [RFC 2725]: https://github.com/rust-lang/rfcs/pull/2725Á üƆ ƒ [gh]: https://github.com/RustCrypto/utils/issues/new?title=cpufeatures:%20requesting%20support%20for%20CHANGEME%20target%20featureÁ Dhttps://raw.githubusercontent.com/RustCrypto/media/6ee8e381/logo.svgÁ„ÁŠ*lå í¸ ÓÈ ³× æ æ æõ ¸¸¸|à ü ( % ARM64 CPU feature detection support.Á ) ú ü-O L Unfortunately ARM instructions to detect CPU features cannot be called fromÁ ü}M J unprivileged userspace code, so this implementation relies on OS-specificÁ üË APIs for feature detection.Á µ $©4¨ŒŸì€¼·ü± 4× <è ü„% (|å 4û È ª ø ° Ë , ± ² ¹ , ³ 8 tfÁ ´ & ¶ 8¯ · $ º » *½ , À 8 bodyÁ $Á & Å 8› $Æ *Í Ð õ Ú ï + è é � 8â ê í � 8”
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î ñ Ž 8£ ò õ � , ö ÷ ‹ 8ð tø † , ‡ 8ú. ˆ $ Š
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Œ , ž 8µ/ $Ÿ + ± ² Ô 8â ³ ¶ Ó 8£ · º Ò , » ¼ Ð 8ð t½ Ë , Ì 8ú. Í $ Ï
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Ñ 8 $â % ö ü—% ú¾œÊ úÏ¬ß üÉ, üÀ7 (|ø 4Ž × ½ È Ã Ï , Ä Å Ì , Æ 8ú. Ç & É 8¯ Ê $ Í Î *Ñ Ô Å Õ Ä 8 ß 8ª 4ã ê , ì 8 ,í 'ò 8€ <ô 'û 8ù |ý Œ � % Ž , ˜ ™ ¸ , š 8 ,› ' 8æ ,¢ § ¨ ´ 8ª 4© $ ¯ , ± 8ú. ² ¶ ¹ 8 $» % Æ üÈ üËD A Linux helper function for calling `getauxval` to get `AT_HWCAP`.Á ú¾œš úϬ¯ ü™, ü�7 |Ï ’
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ü÷ ! ú¾œÉ úÏ¬Þ üÈ , ü¿ 7 ¤„ ™ Ê Ÿ à , ¡ º ¢ ¹ , £ 8Ð $¤ & ¨ 8¯ © $ « , 8 hwcapÁ ,® & ³ 8¼ ,´ $ »
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¼ , ¾ ¿ Á $ À - Â *Å È Ç + Ò Ó à 8Ë dÔ + ê ë ÷ 8Ó ì ï ö 8ª 4ð 8? \�
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Œ
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8æ ,Ž
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Á , ¢
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£
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