dev-lang/rust: add 1.76.0

Signed-off-by: orbea <orbea@riseup.net>

3 files changed, 889 insertions, 0 deletions

diff --git a/dev-lang/rust/Manifest b/dev-lang/rust/Manifest
index c0e77d3..1c90ff1 100644
--- a/dev-lang/rust/Manifest
+++ b/dev-lang/rust/Manifest
@@ -116,6 +116,34 @@ DIST rust-1.74.0-x86_64-unknown-linux-gnu.tar.xz 155920616 BLAKE2B 6213da724e505
 DIST rust-1.74.0-x86_64-unknown-linux-gnu.tar.xz.asc 801 BLAKE2B 9d81f9c2861963a34b0bf9bb15a584db502d388b15f73ce98f78cae6bea0357403d9bd0e6f8ea427a9f4db5946ba7dbb4242e7fb4400b561b7431235f0dbe2d5 SHA512 e1e5e3850715379d30c557791a4eeba2bea090ac85e09a982579a703b2582eddfbc060e21420f418cb492e8d4abe87d5bd81b5acf6ee8bd17b80bb6e0f65b721
 DIST rust-1.74.0-x86_64-unknown-linux-musl.tar.xz 235589268 BLAKE2B d695695ebbb3bf0dea28b9d337f82d5828e6ee70cf7220c849a6008b32f2b590ff57ee35efd58d9a38cd17e0f77ac1187765e8fd6470e0ee2c6cf75f3e3f1489 SHA512 3a8d4cb87d1295b07f0ed48f6e01e69801be3c93744948ef0145217b0cb17581c11c618a07b72edb0945c2ffbe85c59ec1cfd99ef6a60c2e96486f9d5d04d38a
 DIST rust-1.74.0-x86_64-unknown-linux-musl.tar.xz.asc 801 BLAKE2B 0ba1390f67b88fc694df26df22c99ae40f56ccdffb479d9228a17a153de965f8c31dfb4d2c65dad4819d42a0b66b96ff9d3e2c404848dd91141220fdce40710f SHA512 efc779bd0e6fb41297a67efdf731abe3857dace889be284d8ac1e6c239a35749185ad5ac3b82c3b2e55edab3f0e51754c8e53e07d207cf8b4b68ede20cdb8591
+DIST rust-1.75.0-aarch64-unknown-linux-gnu.tar.xz 215543948 BLAKE2B 6d5de2260e4720275bc8c0ce23865840886e27a3cc539ff90c7b8c3a9c04368f2c2a2955dd7c3fe2fe5471492a7ecdf4c2e5a749789a059ad8178a0d70dc32f1 SHA512 7ccd4d605c97cc5a7dfc443ecaee23b4d7c58b0e9673ebd0f9174a4a123639213eb85ed25f19479ea6a818859190e673e0479ee80235a7e35a2d971a636872be
+DIST rust-1.75.0-aarch64-unknown-linux-gnu.tar.xz.asc 801 BLAKE2B ee4d716d905f654932ef70d65c3e83c573d9076c447b4e5831d1dd657be407621890d7a9858fee1ca8ab869420edd267f71d73948abc5861315ed4dc0880d18c SHA512 007e9b45b3b3957a8da7d01c45c5cc7d2d49942dac39067038e74b414ff32e810fd902b8dc7f7563b18c565c782b4e701f23f6d1cea397959241d3cdfd6421fd
+DIST rust-1.75.0-aarch64-unknown-linux-musl.tar.xz 195703332 BLAKE2B a662f9402ede618e78c9899c9b01c2138b927286c0269e847ff4fd389a07029eaa4dd5242576457c8ed67b6b46eef26396d079d1dc2749884cb05334676435b9 SHA512 eceececb90e3c2fb19866e58619237b416777399c6212362bc09f784138df83edd9160dd29906ed928a50e0359b2d9471868b594d765d35c1c7d8d22760c4f1e
+DIST rust-1.75.0-aarch64-unknown-linux-musl.tar.xz.asc 801 BLAKE2B c37dd733fdd13617f6c4be580631dc78e40684c4f47d1e90f575e8aa1c122b36c1fd7182773944cf8cd873c84299a484c9f50a48ff70c7cf54e4b5becb6355cf SHA512 5c35f04cc4a58cd29c1d6e9a5616937492f584fca29db099ed1d59442e76700b83583b1d41e7ce4815187c7092af2eb6f307a959e8b7a647818c9ebe84cf4c8a
+DIST rust-1.75.0-arm-unknown-linux-gnueabi.tar.xz 179835780 BLAKE2B c532fc00e99c6428947e5335efe73fb979e66fd8d52f60e9cac7040d253ef15543171f74c4841ad740d2d334c0b2305f59925e42420ea0658307ad434186a715 SHA512 9d2b398cf97ccf8b70a82c1d03322c1e432f9bd4885d8a42ec26d0d6d6095b783630d83b8a9287c77d8d57b7bc648410273460ed6339e9d254d1bcb81191a578
+DIST rust-1.75.0-arm-unknown-linux-gnueabi.tar.xz.asc 801 BLAKE2B 5ab700ba8898ab1211b20bf1d1a89bf3e4223eccad6b0e816b113254f7d44f23a03cb7fa9fe68386b0b18ca57d71f39b28b4328f072037058c301526d760b063 SHA512 12d5791f0c1d092b52862786ba6b80031607ed819568734d904e553bc24677b583c64e93cc0cd05fad2eddc7357b21c5d15ef68d720b0ab037c7787f2a47eea0
+DIST rust-1.75.0-arm-unknown-linux-gnueabihf.tar.xz 179907476 BLAKE2B 6ed49db0214fd8b35e4d184337b38dc8393f8baf2958bb62308125e6f8e2126f0aa19c8d44fed3475b7818b001447d69267504ab3c96136e257c37db5d2c2285 SHA512 61d555d9c33c8e1647338fdfe24fdfbb42e194ce4995939a58bda6c46f4b857a058e344e714b88435a7bdcc5ee4a086bbaa9c670bc01de45249ca8376ec47c80
+DIST rust-1.75.0-arm-unknown-linux-gnueabihf.tar.xz.asc 801 BLAKE2B 9d5ae3c83985aafdfd1dda6c1db4bf849b4ebaf91ca71ac7249cc8c89de2b3135e752c21850b20c45c5570bb188db1f8513e1df072ebbdd700c37b3ef5f22051 SHA512 6481cfbf21e108d440c8836963d752496eebdf6018b7439459ea079ca82fa05bfc0bd423594e3537c7b522dce05546e59c125eb0cb24ef4db13ed36413c2c1e3
+DIST rust-1.75.0-armv7-unknown-linux-gnueabihf.tar.xz 184210428 BLAKE2B ef329f05d143590d91cba77e7b9a90a977c316e9ae2d8593e7f0247a5db00ca0115c6d468da5394b36e6ce64b2716a51827f39fdc4a34dc16c9220bf5690f042 SHA512 77bfae1f170cd4b2e85a6cc0e02c6f9d621f386a4c0709a2e99c4383479f8979e067d0e92ee7d267150bbf36bc7134bc053afdff7dc0ad66f289aa182755b1d6
+DIST rust-1.75.0-armv7-unknown-linux-gnueabihf.tar.xz.asc 801 BLAKE2B d0a3ebb883641272211478bec1a8089929be0107b05b0f499d71f96515941f7d1e18870c8685f77ef2375251e6f1484f675bd04d5fc0d544854f15ba6402f0e6 SHA512 79e631dd0c44905732ee312486a7c8233440120abeaf40172172e9d5ef0c9687469bac2693ccc2aeb63030590167d88e0fb7d912663dbef655e54ee4cbe9a323
+DIST rust-1.75.0-i686-unknown-linux-gnu.tar.xz 209938900 BLAKE2B 0c9afda24a93f3f35dd779c08d65d6c2366c916a8a3ce6633cd5502bcdbbba537743d95b76daa29d0b4ed3a822915cd5516e864b911bf354e7436745d5a17021 SHA512 242775555d7d38d9aed83018f0d0f8f5f03347c07ee92751de445826c08bc66c24f8601d83eb79729d001d63e81a5b1e27dbb5fac724d80d49e6430685052ba5
+DIST rust-1.75.0-i686-unknown-linux-gnu.tar.xz.asc 801 BLAKE2B 9b7d778b75c2d0a6f43f48345cb4735a9d00d457a1b4d868f777eb16db040daf246459620ec478b0632ee0428e6215e5c39d819608ca800dd065b6e95b13a77d SHA512 f307db41c5e380dd023cfa3e91eda98dd1af8004d062fcaa759c4913464ee01abcf168f19a9fdbdda6dec7f718083f4765eb4296614de4c1fb6fa06144116297
+DIST rust-1.75.0-loongarch64-unknown-linux-gnu.tar.xz 160649540 BLAKE2B c96a90d28e6b71e2e5a5bea8f591e6b472f63bbcc59f181800e87d4400e647c8a18110ec50c7d6d10c8f460589386e1fbde6273ccbccea9373813c80f6612a2b SHA512 04b601e96e1fa6a7bc00c7d8463e7ad1fc4fb1bb46383e797189ecb972e23535ff864e5379c56fac400dcaf4c42923b8a5c4fd9aa08adb52bc1db8341f5254f1
+DIST rust-1.75.0-loongarch64-unknown-linux-gnu.tar.xz.asc 801 BLAKE2B 9da9a6da9b631e72484a3360d692860e98dc77b74e55cf24d6a6a271e9eaa4787ea2f30c38dba483b18890500704319c1dd34b185adf2cf6aee6730bda8d239f SHA512 d6e20fca261aa2c81c019fffe46c7708b58146f9488041419b84a381761a2cd27606d78fd0f6b5e5e79945e1dd76776d54c335ddb453172deab8bac2c3fdf904
+DIST rust-1.75.0-powerpc-unknown-linux-gnu.tar.xz 174918688 BLAKE2B ff7c03e23f8d21dd8f4e0ebaa958fb97ac7779459ad318304070da0c1d98d832200d20d9331f758a33d6131da387af830392e8b34c33c4d220ae49bc93d7c060 SHA512 7a836a7d2ba883388025693044e59af34b2c41a4ffe93def5ed161bf012fbcba7da81cb521217da142852da05503b18df9a965537ba6ba33ef92f52cada8b7d6
+DIST rust-1.75.0-powerpc-unknown-linux-gnu.tar.xz.asc 801 BLAKE2B aa30bfeea014f600b1e3c387476a28af619bd8d63f5b6f10801cc15ee42deca5ab34d3470ec4f07fdfe2b8548f580ff6a63a89c74e1c53c7ef8cd73ddfb69272 SHA512 7efb2c4540a4be9f712698e7a9a905462b2fec70ddd65b9a6ffd28119eb595514366451932c888abe1ffbf93aa8b05c33bb0560c47b478f5122bc87be1c3bd96
+DIST rust-1.75.0-powerpc64-unknown-linux-gnu.tar.xz 174640484 BLAKE2B 768ae78a073b1a7614594ec1f6c381d7a4a9b4be14e548cd5031ea011600755c1934c442795e05f95a720a38c155cd18be188cf7e4b6417d924edc9c2a9076aa SHA512 f83ee23aa8eb7a511984b096876cce60415943d729c77ef4b4cdf0b0f9f8088082058d10881d5866d81a0e94c8515b3966de5a41dc8916d75392650715a844c0
+DIST rust-1.75.0-powerpc64-unknown-linux-gnu.tar.xz.asc 801 BLAKE2B 2bcdf4419fbf491fedcb32a7b54bf2ceb2aaffe0319d9e15f7eb07997646e11283535c5b2024f2785398bbdcaf586aee0ada7128a47b9b8fbd8ffa9e7d0607b5 SHA512 89a0eb5762d49351cfbadcbe098243095a62d41381ea48ebe8a3bf322998c6a46a59ea30da29c03291738fb3d04cafb3c1f57ad1e9ffedd68b4bc1516fdef66f
+DIST rust-1.75.0-powerpc64le-unknown-linux-gnu.tar.xz 186507032 BLAKE2B 49bfbc50e087874b844a7292fefabc0df5217751e2391c44827baf3e83bc0e6a6ce9b392cca58c5b8df6f7f8503110609667fcd9b34e84122016fd0d8df29058 SHA512 536210c00f9cf4bcdcd5bac308954afa4a1e7145844914a5b614745a9023c04273a58ba4ef83214663d69a0a6fc941cd4011349d54e55d84bc090628a7624874
+DIST rust-1.75.0-powerpc64le-unknown-linux-gnu.tar.xz.asc 801 BLAKE2B b7a48197f9159a6c5d46306808d4ebd17b492669745a941b5db380d76d5ca78095f4bf396804caf7b55bdf47d79b5e88fa2f74aad999306f586e62851d7de029 SHA512 27d86a35df7985a626b64ae7ec05b803a7ef5feefad476c3eddc2d89fad44fe4e520ab29bb27cac8be0a0f3aff7da85e45ae8fef15f2afceeed4962933869e0d
+DIST rust-1.75.0-riscv64gc-unknown-linux-gnu.tar.xz 179877936 BLAKE2B 210b84fe6b0729f52c2dde492b4408f33a7661ea9a40daeb1b2b312788f2c4dc80ce54ca72f08098e8575215e7fa7500694142c0448460bf8a82b2761c236290 SHA512 7cc11f07552cc50e78a2e90c0d0da1a62fb0547f56aa6facac4791ef81e7d62a2d66f3cd079cda91e0db1564c2931074ae40c8c142dc9cede1f9c374379fe49c
+DIST rust-1.75.0-riscv64gc-unknown-linux-gnu.tar.xz.asc 801 BLAKE2B 8230c219c9cc22c93fc25f023729e87bf5e725f0613cc0a1a205a671c24beecc48997f824e128b56e4242369328666e355fb5e630cefa6339b39ddab61ca273f SHA512 75820f06aea67b3731777d5b7a0cb907a829b65dcabb4ce2fd55bff52837f6929239be6f8c6b303b86a352ecab16d38afde3ef9683cf7d5c4b4046231c9988c0
+DIST rust-1.75.0-s390x-unknown-linux-gnu.tar.xz 199359500 BLAKE2B fffc6c690c4ad8a9985ce8d2b3e6518787b474e47cf1d5a634f38b5d9d4017ac8f5f69206a9229298dd504d2ed2648dacd2d09a8512c008678033608231c2d7c SHA512 bae263c19a59347705959bf2d285420d2074836adcb92a74d2ec922be2ce2f8aff6f758509701a2136473301654bf528b7c1c2522fd7388f5669d1ed94324c50
+DIST rust-1.75.0-s390x-unknown-linux-gnu.tar.xz.asc 801 BLAKE2B 74cca56622367225f8326b60540c3738adb2ab12a5e320bc85b448e1cd2111983a0816188dd8767d2f20db0f9120d5d1bcc5393548f1a18c828a55f99e4c50e6 SHA512 00e0181fbf6ea1ba2035b368f3ea143f270f8a3c5e41e441593cf3cf072c31b3874146de8c2c51e3eef5c8f0ce8594132a39516d3f614d8d5f0863b546dfb746
+DIST rust-1.75.0-x86_64-unknown-linux-gnu.tar.xz 156249584 BLAKE2B e6ac90854f589c2fb15144bb4db07a9b05b72196febd07c9de223c74c05c2637c832505f1135faceed14fe8c8bcad0a5205005540faa2bdf0f42949d934107c5 SHA512 86d1a5686f826c8f43f876c4cef42e9483785a37b1aaead73dc64a1ff64e7a025a6771d2e642771c6c847d717c25c6bd2560a2b8b59516a55dece589580b2534
+DIST rust-1.75.0-x86_64-unknown-linux-gnu.tar.xz.asc 801 BLAKE2B 6614cb3ef782c917e8f7fdc990c5b82e8fcffa71e075f10f9726f405ff566fd963bec64cde4dd7252d9d78e09a184b8ba22d15cc87662ad987cdd37c881d8288 SHA512 bfaeef4cd7643879991955fd33f4cdc4c34afb1202cb77c0736434fb735bd215d18d1a11c25f04a7f2514640858a36832e5805a5f85e92d8b7076aa18607ffc3
+DIST rust-1.75.0-x86_64-unknown-linux-musl.tar.xz 234151836 BLAKE2B 9461afbdf26dea19e118b35ea7ef1ee60c22f601501ae6a08950658598a74a6b3179cbdfd9dc4748a0c2485af721b371e5fb523f27e7d7d702f94b532a70437f SHA512 7d650a29c5d14023a3d7d606b7bac4be6ef7988a82525f02d7af9cf3895bb88284442b8042d27be69689f4bddaa5c5370ef7609d18849986860eafcdf89d2d69
+DIST rust-1.75.0-x86_64-unknown-linux-musl.tar.xz.asc 801 BLAKE2B c222d0989518602c0ecde9d21dbca97e9e60d81083804d1d8b2c6bffc8114af78570fd384eb58e5dba1bf249b99300e7f3f4067c1a66c0cd9fac60443f56f751 SHA512 6f78913e34402cedb37f4a54491c65a8bfe79e535e4e40516f2381bc27783cc7655e9252e7701813578c8ffcaf6b301e61ad32917a475d4388fa472733b21b12
 DIST rustc-1.71.0-src.tar.xz 151962928 BLAKE2B da8d83cd6621947816630ae487efe7d087266c1352949cedbbd441ba7c7f7c7beb13b9470e66e2f3359c37a050d0e44d22481c418532d3ebb339a456ab092648 SHA512 2c93bafdd248563765a285add48ca77c1e4bad4d5431675ae6a5cdee4cfe7a41e6bcc880a489ca1069a307fd9a005f2d5f8e230dfc95b4a69152b4f9ca49ac44
 DIST rustc-1.71.0-src.tar.xz.asc 801 BLAKE2B e5ddc4b18a6caeeb63c5aed5b5d15989d086f408787d2e603e50e7b8548dc078683062627280fd2a0393bec01c314eb1cc59f9b0e3146abf07b8365a0b44c640 SHA512 cb1b208c8b2bfccf02c73c4246fb238edb0dd10e292c1ef781920964e54e40add3089d988769982c0ce06b719014685b1c37daa2d08b513d86ad73808f4ce3ac
 DIST rustc-1.71.1-src.tar.xz 151983068 BLAKE2B 3dfdbc246feb84a79ae94c2de978c5585ee06cf6b683d2245869b62e28f7c79f89cc589f5431537713bf088236a0b824acefc1b68e418e9eb72e1eea98054e3f SHA512 fd0e5a16bdbeb539184513583089e55f681cb772810df357b6b1464853f7022ac02edab3dd155b2262ed0047e2a25dea3808dd078dcdfce9d399384465009db4
@@ -126,3 +154,5 @@ DIST rustc-1.74.1-src.tar.xz 155968724 BLAKE2B e05f2379ac94b286f85791a138e1928e5
 DIST rustc-1.74.1-src.tar.xz.asc 801 BLAKE2B ddf73175b164233babf31ca3a381b03e20c0f36d017c1d5f85d6ab11f0986d861ab23b11c061e6b2444ced70c3d6a494cc3de4ec86f0deb221a805491bd75420 SHA512 9a96ff9ba9a4e2af4e267b2ec126fc0675c78d0eb767703daa2f28491c3d85c2ab00fbd8584390bf658812ec6c4ab6c57e43b386db59fd505bd3134a8873a09e
 DIST rustc-1.75.0-src.tar.xz 159624388 BLAKE2B 8937b80585eddaa3e1f1ef948899d14a170308518c6fef9fe569560cdd870053776956743f796055f2119399b9ca6c0df12fedd789ae46324d071e5126c4e495 SHA512 7b0f25d91b1b5c317980fc88e059200bd43b56a70b445fbc72fb9b96e09775bfd3a98e9bd9d662af80f0ce3aef527c777ee82777e96ca876f47a972d63da8606
 DIST rustc-1.75.0-src.tar.xz.asc 801 BLAKE2B 434da96b1dc93a5aeed07f4961b087fdd15870e407283ecc00df08dbc1e9f6c65fe459b3a25d39ee55900d53ee583207098ecf3d63f5d6ea114ef0b8398b6a63 SHA512 a0e948553af77ca6e2daa82c69d79079ef7d4ec61957bdff99efd73748200d6c7caa9282daeb3fe3ef849d81a48e66a25336df4c7b6f62f975266aa8b9b93d3a
+DIST rustc-1.76.0-src.tar.xz 162267908 BLAKE2B 0cf726841a837d9906d82a6216e65edad1e3e4a798ccd1ca3824c2098d0c45473854b8bf183c6e9ca70ba095752e77c4f5ef575d98c07243d609857214175f5e SHA512 92e16cfdeb91bde341fe6c2774d92868275b07aa1d46d870ddc9291eadfe4ea9af93e06586fa7d6b8d60534903945cbbe706d354c90272712989c58d2bf174bf
+DIST rustc-1.76.0-src.tar.xz.asc 801 BLAKE2B eadb2f54fceb9c1ac60af72407a2957e37e1ba134a696675a1e9dcf23a2958b41d7f5aa1f75156e4843cefc387cdc9c909e364c3bfcabecc6bfbe262d9c6e8af SHA512 d35c010a5a129580746bcec5c0dad1b0bc1b7864a69505c7c0ccfad436fdfbdf33f87518965a09de187d6a70fb8867dc6a20037c648861031a17501577855120
diff --git a/dev-lang/rust/files/1.76.0-loong-code-model.patch b/dev-lang/rust/files/1.76.0-loong-code-model.patch
new file mode 100644
index 0000000..02bfeca
--- /dev/null
+++ b/dev-lang/rust/files/1.76.0-loong-code-model.patch
@@ -0,0 +1,73 @@
+https://github.com/rust-lang/rust/pull/120661
+From: WANG Xuerui <xen0n@gentoo.org>
+Date: Mon, 5 Feb 2024 13:18:32 +0800
+Subject: [PATCH] target: default to the medium code model on LoongArch targets
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+The Rust LoongArch targets have been using the default LLVM code model
+so far, which is "small" in LLVM-speak and "normal" in LoongArch-speak.
+As described in the "Code Model" section of LoongArch ELF psABI spec
+v20231219 [1], one can only make function calls as far as ±128MiB with
+the "normal" code model; this is insufficient for very large software
+containing Rust components that needs to be linked into the big text
+section, such as Chromium.
+
+Because:
+
+* we do not want to ask users to recompile std if they are to build
+  such software,
+* objects compiled with larger code models can be linked with those
+  with smaller code models without problems, and
+* the "medium" code model is comparable to the "small"/"normal" one
+  performance-wise (same data access pattern; each function call
+  becomes 2-insn long and indirect, but this may be relaxed back into
+  the direct 1-insn form in a future LLVM version), but is able to
+  perform function calls within ±128GiB,
+
+it is better to just switch the targets to the "medium" code model,
+which is also "medium" in LLVM-speak.
+
+[1]: https://github.com/loongson/la-abi-specs/blob/v2.30/laelf.adoc#code-models
+--- a/compiler/rustc_target/src/spec/targets/loongarch64_unknown_linux_gnu.rs
++++ b/compiler/rustc_target/src/spec/targets/loongarch64_unknown_linux_gnu.rs
+@@ -1,4 +1,4 @@
+-use crate::spec::{base, Target, TargetOptions};
++use crate::spec::{base, CodeModel, Target, TargetOptions};
+ 
+ pub fn target() -> Target {
+     Target {
+@@ -7,6 +7,7 @@ pub fn target() -> Target {
+         data_layout: "e-m:e-p:64:64-i64:64-i128:128-n64-S128".into(),
+         arch: "loongarch64".into(),
+         options: TargetOptions {
++            code_model: Some(CodeModel::Medium),
+             cpu: "generic".into(),
+             features: "+f,+d".into(),
+             llvm_abiname: "lp64d".into(),
+--- a/compiler/rustc_target/src/spec/targets/loongarch64_unknown_none.rs
++++ b/compiler/rustc_target/src/spec/targets/loongarch64_unknown_none.rs
+@@ -16,7 +16,7 @@ pub fn target() -> Target {
+             max_atomic_width: Some(64),
+             relocation_model: RelocModel::Static,
+             panic_strategy: PanicStrategy::Abort,
+-            code_model: Some(CodeModel::Small),
++            code_model: Some(CodeModel::Medium),
+             ..Default::default()
+         },
+     }
+--- a/compiler/rustc_target/src/spec/targets/loongarch64_unknown_none_softfloat.rs
++++ b/compiler/rustc_target/src/spec/targets/loongarch64_unknown_none_softfloat.rs
+@@ -17,7 +17,7 @@ pub fn target() -> Target {
+             max_atomic_width: Some(64),
+             relocation_model: RelocModel::Static,
+             panic_strategy: PanicStrategy::Abort,
+-            code_model: Some(CodeModel::Small),
++            code_model: Some(CodeModel::Medium),
+             ..Default::default()
+         },
+     }
+-- 
+2.43.0
+
diff --git a/dev-lang/rust/rust-1.76.0.ebuild b/dev-lang/rust/rust-1.76.0.ebuild
new file mode 100644
index 0000000..5c6cef7
--- /dev/null
+++ b/dev-lang/rust/rust-1.76.0.ebuild
@@ -0,0 +1,786 @@
+# Copyright 1999-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( python3_{10..12} )
+
+inherit bash-completion-r1 check-reqs estack flag-o-matic llvm multiprocessing \
+	multilib multilib-build python-any-r1 rust-toolchain toolchain-funcs verify-sig
+
+if [[ ${PV} = *beta* ]]; then
+	betaver=${PV//*beta}
+	BETA_SNAPSHOT="${betaver:0:4}-${betaver:4:2}-${betaver:6:2}"
+	MY_P="rustc-beta"
+	SLOT="beta/${PV}"
+	SRC="${BETA_SNAPSHOT}/rustc-beta-src.tar.xz -> rustc-${PV}-src.tar.xz"
+else
+	ABI_VER="$(ver_cut 1-2)"
+	SLOT="stable/${ABI_VER}"
+	MY_P="rustc-${PV}"
+	SRC="${MY_P}-src.tar.xz"
+	KEYWORDS="~amd64 ~arm ~arm64 ~loong ~mips ~ppc ~ppc64 ~riscv ~sparc ~x86"
+fi
+
+RUST_STAGE0_VERSION="1.$(($(ver_cut 2) - 1)).0"
+
+DESCRIPTION="Systems programming language from Mozilla"
+HOMEPAGE="https://www.rust-lang.org/"
+
+SRC_URI="
+	https://static.rust-lang.org/dist/${SRC}
+	verify-sig? ( https://static.rust-lang.org/dist/${SRC}.asc )
+	!system-bootstrap? ( $(rust_all_arch_uris rust-${RUST_STAGE0_VERSION}) )
+"
+
+# keep in sync with llvm ebuild of the same version as bundled one.
+ALL_LLVM_TARGETS=( AArch64 AMDGPU ARC ARM AVR BPF CSKY DirectX Hexagon Lanai
+	LoongArch M68k Mips MSP430 NVPTX PowerPC RISCV Sparc SPIRV SystemZ VE
+	WebAssembly X86 XCore Xtensa )
+ALL_LLVM_TARGETS=( "${ALL_LLVM_TARGETS[@]/#/llvm_targets_}" )
+LLVM_TARGET_USEDEPS=${ALL_LLVM_TARGETS[@]/%/(-)?}
+
+LICENSE="|| ( MIT Apache-2.0 ) BSD BSD-1 BSD-2 BSD-4"
+
+IUSE="big-endian clippy cpu_flags_x86_sse2 debug dist doc llvm-libunwind +lto miri nightly parallel-compiler profiler rustfmt rust-analyzer rust-src system-bootstrap system-llvm test wasm ${ALL_LLVM_TARGETS[*]}"
+
+# Please keep the LLVM dependency block separate. Since LLVM is slotted,
+# we need to *really* make sure we're not pulling more than one slot
+# simultaneously.
+
+# How to use it:
+# List all the working slots in LLVM_VALID_SLOTS, newest first.
+LLVM_VALID_SLOTS=( 17 )
+LLVM_MAX_SLOT="${LLVM_VALID_SLOTS[0]}"
+
+# splitting usedeps needed to avoid CI/pkgcheck's UncheckableDep limitation
+# (-) usedep needed because we may build with older llvm without that target
+LLVM_DEPEND="|| ( "
+for _s in ${LLVM_VALID_SLOTS[@]}; do
+	LLVM_DEPEND+=" ( "
+	for _x in ${ALL_LLVM_TARGETS[@]}; do
+		LLVM_DEPEND+="
+			${_x}? ( sys-devel/llvm:${_s}[${_x}(-)] )
+			wasm? ( sys-devel/lld:${_s} )"
+	done
+	LLVM_DEPEND+=" )"
+done
+unset _s _x
+LLVM_DEPEND+=" )
+	<sys-devel/llvm-$(( LLVM_MAX_SLOT + 1 )):=
+"
+
+# to bootstrap we need at least exactly previous version, or same.
+# most of the time previous versions fail to bootstrap with newer
+# for example 1.47.x, requires at least 1.46.x, 1.47.x is ok,
+# but it fails to bootstrap with 1.48.x
+# https://github.com/rust-lang/rust/blob/${PV}/src/stage0.json
+RUST_DEP_PREV="$(ver_cut 1).$(($(ver_cut 2) - 1))*"
+RUST_DEP_CURR="$(ver_cut 1).$(ver_cut 2)*"
+BOOTSTRAP_DEPEND="||
+	(
+		=dev-lang/rust-"${RUST_DEP_PREV}"
+		=dev-lang/rust-bin-"${RUST_DEP_PREV}"
+		=dev-lang/rust-"${RUST_DEP_CURR}"
+		=dev-lang/rust-bin-"${RUST_DEP_CURR}"
+	)
+"
+
+BDEPEND="${PYTHON_DEPS}
+	app-eselect/eselect-rust
+	|| (
+		>=sys-devel/gcc-4.7
+		>=sys-devel/clang-3.5
+	)
+	system-bootstrap? ( ${BOOTSTRAP_DEPEND} )
+	!system-llvm? (
+		>=dev-build/cmake-3.13.4
+		app-alternatives/ninja
+	)
+	test? ( dev-debug/gdb )
+	verify-sig? ( sec-keys/openpgp-keys-rust )
+"
+
+DEPEND="
+	>=app-arch/xz-utils-5.2
+	net-misc/curl:=[http2,ssl]
+	sys-libs/zlib:=
+	dev-libs/openssl:0=
+	system-llvm? (
+		${LLVM_DEPEND}
+		llvm-libunwind? ( sys-libs/llvm-libunwind:= )
+	)
+	!system-llvm? (
+		!llvm-libunwind? (
+			elibc_musl? ( sys-libs/libunwind:= )
+		)
+	)
+"
+
+RDEPEND="${DEPEND}
+	app-eselect/eselect-rust
+	sys-apps/lsb-release
+"
+
+REQUIRED_USE="|| ( ${ALL_LLVM_TARGETS[*]} )
+	miri? ( nightly )
+	parallel-compiler? ( nightly )
+	rust-analyzer? ( rust-src )
+	test? ( ${ALL_LLVM_TARGETS[*]} )
+	wasm? ( llvm_targets_WebAssembly )
+	x86? ( cpu_flags_x86_sse2 )
+"
+
+# we don't use cmake.eclass, but can get a warning
+CMAKE_WARN_UNUSED_CLI=no
+
+QA_FLAGS_IGNORED="
+	usr/lib/${PN}/${PV}/bin/.*
+	usr/lib/${PN}/${PV}/libexec/.*
+	usr/lib/${PN}/${PV}/lib/lib.*.so
+	usr/lib/${PN}/${PV}/lib/rustlib/.*/bin/.*
+	usr/lib/${PN}/${PV}/lib/rustlib/.*/lib/lib.*.so
+"
+
+QA_SONAME="
+	usr/lib/${PN}/${PV}/lib/lib.*.so.*
+	usr/lib/${PN}/${PV}/lib/rustlib/.*/lib/lib.*.so
+"
+
+QA_PRESTRIPPED="
+	usr/lib/${PN}/${PV}/lib/rustlib/.*/bin/rust-llvm-dwp
+	usr/lib/${PN}/${PV}/lib/rustlib/.*/lib/self-contained/crtn.o
+"
+
+# An rmeta file is custom binary format that contains the metadata for the crate.
+# rmeta files do not support linking, since they do not contain compiled object files.
+# so we can safely silence the warning for this QA check.
+QA_EXECSTACK="usr/lib/${PN}/${PV}/lib/rustlib/*/lib*.rlib:lib.rmeta"
+
+# causes double bootstrap
+RESTRICT="test"
+
+VERIFY_SIG_OPENPGP_KEY_PATH=/usr/share/openpgp-keys/rust.asc
+
+PATCHES=(
+	"${FILESDIR}"/1.75.0-musl-dynamic-linking.patch
+	"${FILESDIR}"/1.74.1-cross-compile-libz.patch
+	#"${FILESDIR}"/1.72.0-bump-libc-deps-to-0.2.146.patch  # pending refresh
+	"${FILESDIR}"/1.70.0-ignore-broken-and-non-applicable-tests.patch
+	"${FILESDIR}"/1.67.0-doc-wasm.patch
+	"${FILESDIR}"/1.75.0-handle-vendored-sources.patch  # remove for >=1.77.0
+	"${FILESDIR}"/1.76.0-loong-code-model.patch  # remove for >=1.78.0
+)
+
+S="${WORKDIR}/${MY_P}-src"
+
+clear_vendor_checksums() {
+	sed -i 's/\("files":{\)[^}]*/\1/' "vendor/${1}/.cargo-checksum.json" || die
+}
+
+toml_usex() {
+	usex "${1}" true false
+}
+
+bootstrap_rust_version_check() {
+	# never call from pkg_pretend. eselect-rust may be not installed yet.
+	[[ ${MERGE_TYPE} == binary ]] && return
+	local rustc_wanted="$(ver_cut 1).$(($(ver_cut 2) - 1))"
+	local rustc_toonew="$(ver_cut 1).$(($(ver_cut 2) + 1))"
+	local rustc_version=( $(eselect --brief --root="${BROOT}" rust show 2>/dev/null) )
+	rustc_version=${rustc_version[0]#rust-bin-}
+	rustc_version=${rustc_version#rust-}
+
+	[[ -z "${rustc_version}" ]] && die "Failed to determine rust version, check 'eselect rust' output"
+
+	if ver_test "${rustc_version}" -lt "${rustc_wanted}" ; then
+		eerror "Rust >=${rustc_wanted} is required"
+		eerror "please run 'eselect rust' and set correct rust version"
+		die "selected rust version is too old"
+	elif ver_test "${rustc_version}" -ge "${rustc_toonew}" ; then
+		eerror "Rust <${rustc_toonew} is required"
+		eerror "please run 'eselect rust' and set correct rust version"
+		die "selected rust version is too new"
+	else
+		einfo "Using rust ${rustc_version} to build"
+	fi
+}
+
+pre_build_checks() {
+	local M=8192
+	# multiply requirements by 1.3 if we are doing x86-multilib
+	if use amd64; then
+		M=$(( $(usex abi_x86_32 13 10) * ${M} / 10 ))
+	fi
+	M=$(( $(usex clippy 128 0) + ${M} ))
+	M=$(( $(usex miri 128 0) + ${M} ))
+	M=$(( $(usex rustfmt 256 0) + ${M} ))
+	# add 2G if we compile llvm and 256M per llvm_target
+	if ! use system-llvm; then
+		M=$(( 2048 + ${M} ))
+		local ltarget
+		for ltarget in ${ALL_LLVM_TARGETS[@]}; do
+			M=$(( $(usex ${ltarget} 256 0) + ${M} ))
+		done
+	fi
+	M=$(( $(usex wasm 256 0) + ${M} ))
+	M=$(( $(usex debug 2 1) * ${M} ))
+	eshopts_push -s extglob
+	if is-flagq '-g?(gdb)?([1-9])'; then
+		M=$(( 15 * ${M} / 10 ))
+	fi
+	eshopts_pop
+	M=$(( $(usex system-bootstrap 0 1024) + ${M} ))
+	M=$(( $(usex doc 256 0) + ${M} ))
+	CHECKREQS_DISK_BUILD=${M}M check-reqs_pkg_${EBUILD_PHASE}
+}
+
+llvm_check_deps() {
+	has_version -r "sys-devel/llvm:${LLVM_SLOT}[${LLVM_TARGET_USEDEPS// /,}]"
+}
+
+# Is LLVM being linked against libc++?
+is_libcxx_linked() {
+	local code='#include <ciso646>
+#if defined(_LIBCPP_VERSION)
+	HAVE_LIBCXX
+#endif
+'
+	local out=$($(tc-getCXX) ${CXXFLAGS} ${CPPFLAGS} -x c++ -E -P - <<<"${code}") || return 1
+	[[ ${out} == *HAVE_LIBCXX* ]]
+}
+
+pkg_pretend() {
+	pre_build_checks
+}
+
+pkg_setup() {
+	pre_build_checks
+	python-any-r1_pkg_setup
+
+	export LIBGIT2_NO_PKG_CONFIG=1 #749381
+	if tc-is-cross-compiler; then
+		export PKG_CONFIG_ALLOW_CROSS=1
+		export PKG_CONFIG_PATH="${ROOT}/usr/$(get_libdir)/pkgconfig"
+		export OPENSSL_INCLUDE_DIR="${ROOT}/usr/include"
+		export OPENSSL_LIB_DIR="${ROOT}/usr/$(get_libdir)"
+
+		use system-bootstrap || die "USE=system-bootstrap is required when cross-compiling"
+		use system-llvm && die "USE=system-llvm not allowed when cross-compiling"
+		local cross_llvm_target="$(llvm_tuple_to_target "${CBUILD}")"
+		use "llvm_targets_${cross_llvm_target}" || \
+			die "Must enable LLVM_TARGETS=${cross_llvm_target} matching CBUILD=${CBUILD} when cross-compiling"
+	fi
+
+	use system-bootstrap && bootstrap_rust_version_check
+
+	if use system-llvm; then
+		llvm_pkg_setup
+
+		local llvm_config="$(get_llvm_prefix "${LLVM_MAX_SLOT}")/bin/llvm-config"
+		export LLVM_LINK_SHARED=1
+		export RUSTFLAGS="${RUSTFLAGS} -Lnative=$("${llvm_config}" --libdir)"
+	fi
+}
+
+esetup_unwind_hack() {
+	# https://bugs.gentoo.org/870280
+	# this is a hack needed to bootstrap with libgcc_s linked tarball on llvm-libunwind system.
+	# it should trigger for internal bootstrap or system-bootstrap with rust-bin.
+	# the whole idea is for stage0 to bootstrap with fake libgcc_s.
+	# final stage will receive -L${T}/lib but not -lgcc_s args, producing clean compiler.
+	local fakelib="${T}/fakelib"
+	mkdir -p "${fakelib}" || die
+	# we need both symlinks, one for cargo runtime, other for linker.
+	ln -s "${ESYSROOT}/usr/lib/libunwind.so" "${fakelib}/libgcc_s.so.1" || die
+	ln -s "${ESYSROOT}/usr/lib/libunwind.so" "${fakelib}/libgcc_s.so" || die
+	export LD_LIBRARY_PATH="${fakelib}"
+	export RUSTFLAGS+=" -L${fakelib}"
+	# this is a literally magic variable that gets through cargo cache, without it some
+	# crates ignore RUSTFLAGS.
+	# this variable can not contain leading space.
+	export MAGIC_EXTRA_RUSTFLAGS+="${MAGIC_EXTRA_RUSTFLAGS:+ }-L${fakelib}"
+}
+
+src_prepare() {
+	# Clear vendor checksums for crates that we patched to bump libc.
+	# NOTE: refresh this on each bump.
+	#for i in addr2line-0.20.0 bstr cranelift-jit crossbeam-channel elasticlunr-rs handlebars icu_locid libffi \
+	#	terminal_size tracing-tree; do
+	#	clear_vendor_checksums "${i}"
+	#done
+
+	if ! use system-bootstrap; then
+		has_version sys-devel/gcc || esetup_unwind_hack
+		local rust_stage0_root="${WORKDIR}"/rust-stage0
+		local rust_stage0="rust-${RUST_STAGE0_VERSION}-$(rust_abi "${CBUILD}")"
+
+		"${WORKDIR}/${rust_stage0}"/install.sh --disable-ldconfig \
+			--without=rust-docs-json-preview,rust-docs --destdir="${rust_stage0_root}" --prefix=/ || die
+	fi
+
+	default
+}
+
+src_configure() {
+	filter-lto # https://bugs.gentoo.org/862109 https://bugs.gentoo.org/866231
+
+	local rust_target="" rust_targets="" arch_cflags
+
+	# Collect rust target names to compile standard libs for all ABIs.
+	for v in $(multilib_get_enabled_abi_pairs); do
+		rust_targets+=",\"$(rust_abi $(get_abi_CHOST ${v##*.}))\""
+	done
+	if use wasm; then
+		rust_targets+=",\"wasm32-unknown-unknown\""
+		if use system-llvm; then
+			# un-hardcode rust-lld linker for this target
+			# https://bugs.gentoo.org/715348
+			sed -i '/linker:/ s/rust-lld/wasm-ld/' compiler/rustc_target/src/spec/base/wasm.rs || die
+		fi
+	fi
+	rust_targets="${rust_targets#,}"
+
+	# cargo and rustdoc are mandatory and should always be included
+	local tools='"cargo","rustdoc"'
+	use clippy && tools+=',"clippy"'
+	use miri && tools+=',"miri"'
+	use profiler && tools+=',"rust-demangler"'
+	use rustfmt && tools+=',"rustfmt"'
+	use rust-analyzer && tools+=',"rust-analyzer"'
+	use rust-src && tools+=',"src"'
+
+	local rust_stage0_root
+	if use system-bootstrap; then
+		local printsysroot
+		printsysroot="$(rustc --print sysroot || die "Can't determine rust's sysroot")"
+		rust_stage0_root="${printsysroot}"
+	else
+		rust_stage0_root="${WORKDIR}"/rust-stage0
+	fi
+	# in case of prefix it will be already prefixed, as --print sysroot returns full path
+	[[ -d ${rust_stage0_root} ]] || die "${rust_stage0_root} is not a directory"
+
+	rust_target="$(rust_abi)"
+	rust_build="$(rust_abi "${CBUILD}")"
+	rust_host="$(rust_abi "${CHOST}")"
+
+	local cm_btype="$(usex debug DEBUG RELEASE)"
+	cat <<- _EOF_ > "${S}"/config.toml
+		changelog-seen = 2
+		[llvm]
+		download-ci-llvm = false
+		optimize = $(toml_usex !debug)
+		release-debuginfo = $(toml_usex debug)
+		assertions = $(toml_usex debug)
+		ninja = true
+		targets = "${LLVM_TARGETS// /;}"
+		experimental-targets = ""
+		link-shared = $(toml_usex system-llvm)
+		$(if is_libcxx_linked; then
+			# https://bugs.gentoo.org/732632
+			echo "use-libcxx = true"
+			echo "static-libstdcpp = false"
+		fi)
+		$(case "${rust_target}" in
+			i586-*-linux-*)
+				# https://github.com/rust-lang/rust/issues/93059
+				echo 'cflags = "-fcf-protection=none"'
+				echo 'cxxflags = "-fcf-protection=none"'
+				echo 'ldflags = "-fcf-protection=none"'
+				;;
+			*)
+				;;
+		esac)
+		enable-warnings = false
+		[llvm.build-config]
+		CMAKE_VERBOSE_MAKEFILE = "ON"
+		$(if ! tc-is-cross-compiler; then
+			# When cross-compiling, LLVM is compiled twice, once for host and
+			# once for target.  Unfortunately, this build configuration applies
+			# to both, which means any flags applicable to one target but not
+			# the other will break.  Conditionally disable respecting user
+			# flags when cross-compiling.
+			echo "CMAKE_C_FLAGS_${cm_btype} = \"${CFLAGS}\""
+			echo "CMAKE_CXX_FLAGS_${cm_btype} = \"${CXXFLAGS}\""
+			echo "CMAKE_EXE_LINKER_FLAGS_${cm_btype} = \"${LDFLAGS}\""
+			echo "CMAKE_MODULE_LINKER_FLAGS_${cm_btype} = \"${LDFLAGS}\""
+			echo "CMAKE_SHARED_LINKER_FLAGS_${cm_btype} = \"${LDFLAGS}\""
+			echo "CMAKE_STATIC_LINKER_FLAGS_${cm_btype} = \"${ARFLAGS}\""
+		fi)
+		[build]
+		build-stage = 2
+		test-stage = 2
+		build = "${rust_build}"
+		host = ["${rust_host}"]
+		target = [${rust_targets}]
+		cargo = "${rust_stage0_root}/bin/cargo"
+		rustc = "${rust_stage0_root}/bin/rustc"
+		rustfmt = "${rust_stage0_root}/bin/rustfmt"
+		docs = $(toml_usex doc)
+		compiler-docs = false
+		submodules = false
+		python = "${EPYTHON}"
+		locked-deps = true
+		vendor = true
+		extended = true
+		tools = [${tools}]
+		verbose = 2
+		sanitizers = false
+		profiler = $(toml_usex profiler)
+		cargo-native-static = false
+		[install]
+		prefix = "${EPREFIX}/usr/lib/${PN}/${PV}"
+		sysconfdir = "etc"
+		docdir = "share/doc/rust"
+		bindir = "bin"
+		libdir = "lib"
+		mandir = "share/man"
+		[rust]
+		# https://github.com/rust-lang/rust/issues/54872
+		codegen-units-std = 1
+		optimize = true
+		debug = $(toml_usex debug)
+		debug-assertions = $(toml_usex debug)
+		debug-assertions-std = $(toml_usex debug)
+		debuginfo-level = $(usex debug 2 0)
+		debuginfo-level-rustc = $(usex debug 2 0)
+		debuginfo-level-std = $(usex debug 2 0)
+		debuginfo-level-tools = $(usex debug 2 0)
+		debuginfo-level-tests = 0
+		backtrace = true
+		incremental = false
+		$(if ! tc-is-cross-compiler; then
+			echo "default-linker = \"$(tc-getCC)\""
+		fi)
+		parallel-compiler = $(toml_usex parallel-compiler)
+		channel = "$(usex nightly nightly stable)"
+		description = "gentoo"
+		rpath = false
+		verbose-tests = true
+		optimize-tests = $(toml_usex !debug)
+		codegen-tests = true
+		dist-src = false
+		remap-debuginfo = true
+		lld = $(usex system-llvm false $(toml_usex wasm))
+		# only deny warnings if doc+wasm are NOT requested, documenting stage0 wasm std fails without it
+		# https://github.com/rust-lang/rust/issues/74976
+		# https://github.com/rust-lang/rust/issues/76526
+		deny-warnings = $(usex wasm $(usex doc false true) true)
+		backtrace-on-ice = true
+		jemalloc = false
+		lto = "$(usex lto fat off)"
+		[dist]
+		src-tarball = false
+		compression-formats = ["xz"]
+		compression-profile = "balanced"
+	_EOF_
+
+	for v in $(multilib_get_enabled_abi_pairs); do
+		rust_target=$(rust_abi $(get_abi_CHOST ${v##*.}))
+		arch_cflags="$(get_abi_CFLAGS ${v##*.})"
+
+		export CFLAGS_${rust_target//-/_}="${arch_cflags}"
+
+		cat <<- _EOF_ >> "${S}"/config.toml
+			[target.${rust_target}]
+			ar = "$(tc-getAR)"
+			cc = "$(tc-getCC)"
+			cxx = "$(tc-getCXX)"
+			linker = "$(tc-getCC)"
+			ranlib = "$(tc-getRANLIB)"
+			llvm-libunwind = "$(usex llvm-libunwind $(usex system-llvm system in-tree) no)"
+		_EOF_
+		if use system-llvm; then
+			cat <<- _EOF_ >> "${S}"/config.toml
+				llvm-config = "$(get_llvm_prefix "${LLVM_MAX_SLOT}")/bin/llvm-config"
+			_EOF_
+		fi
+		# by default librustc_target/spec/linux_musl_base.rs sets base.crt_static_default = true;
+		# but we patch it and set to false here as well
+		if use elibc_musl; then
+			cat <<- _EOF_ >> "${S}"/config.toml
+				crt-static = false
+			_EOF_
+		fi
+	done
+	if use wasm; then
+		cat <<- _EOF_ >> "${S}"/config.toml
+			[target.wasm32-unknown-unknown]
+			linker = "$(usex system-llvm lld rust-lld)"
+			# wasm target does not have profiler_builtins https://bugs.gentoo.org/848483
+			profiler = false
+		_EOF_
+	fi
+
+	if [[ -n ${I_KNOW_WHAT_I_AM_DOING_CROSS} ]]; then # whitespace intentionally shifted below
+	# experimental cross support
+	# discussion: https://bugs.gentoo.org/679878
+	# TODO: c*flags, clang, system-llvm, cargo.eclass target support
+	# it would be much better if we could split out stdlib
+	# complilation to separate ebuild and abuse CATEGORY to
+	# just install to /usr/lib/rustlib/<target>
+
+	# extra targets defined as a bash array
+	# spec format:  <LLVM target>:<rust-target>:<CTARGET>
+	# best place would be /etc/portage/env/dev-lang/rust
+	# Example:
+	# RUST_CROSS_TARGETS=(
+	#	"AArch64:aarch64-unknown-linux-gnu:aarch64-unknown-linux-gnu"
+	# )
+	# no extra hand holding is done, no target transformations, all
+	# values are passed as-is with just basic checks, so it's up to user to supply correct values
+	# valid rust targets can be obtained with
+	# 	rustc --print target-list
+	# matching cross toolchain has to be installed
+	# matching LLVM_TARGET has to be enabled for both rust and llvm (if using system one)
+	# only gcc toolchains installed with crossdev are checked for now.
+
+	# BUG: we can't pass host flags to cross compiler, so just filter for now
+	# BUG: this should be more fine-grained.
+	filter-flags '-mcpu=*' '-march=*' '-mtune=*'
+
+	local cross_target_spec
+	for cross_target_spec in "${RUST_CROSS_TARGETS[@]}";do
+		# extracts first element form <LLVM target>:<rust-target>:<CTARGET>
+		local cross_llvm_target="${cross_target_spec%%:*}"
+		# extracts toolchain triples, <rust-target>:<CTARGET>
+		local cross_triples="${cross_target_spec#*:}"
+		# extracts first element after before : separator
+		local cross_rust_target="${cross_triples%%:*}"
+		# extracts last element after : separator
+		local cross_toolchain="${cross_triples##*:}"
+		use llvm_targets_${cross_llvm_target} || die "need llvm_targets_${cross_llvm_target} target enabled"
+		command -v ${cross_toolchain}-gcc > /dev/null 2>&1 || die "need ${cross_toolchain} cross toolchain"
+
+		cat <<- _EOF_ >> "${S}"/config.toml
+			[target.${cross_rust_target}]
+			ar = "${cross_toolchain}-ar"
+			cc = "${cross_toolchain}-gcc"
+			cxx = "${cross_toolchain}-g++"
+			linker = "${cross_toolchain}-gcc"
+			ranlib = "${cross_toolchain}-ranlib"
+		_EOF_
+		if use system-llvm; then
+			cat <<- _EOF_ >> "${S}"/config.toml
+				llvm-config = "$(get_llvm_prefix "${LLVM_MAX_SLOT}")/bin/llvm-config"
+			_EOF_
+		fi
+		if [[ "${cross_toolchain}" == *-musl* ]]; then
+			cat <<- _EOF_ >> "${S}"/config.toml
+				musl-root = "$(${cross_toolchain}-gcc -print-sysroot)/usr"
+			_EOF_
+		fi
+
+		# append cross target to "normal" target list
+		# example 'target = ["powerpc64le-unknown-linux-gnu"]'
+		# becomes 'target = ["powerpc64le-unknown-linux-gnu","aarch64-unknown-linux-gnu"]'
+
+		rust_targets="${rust_targets},\"${cross_rust_target}\""
+		sed -i "/^target = \[/ s#\[.*\]#\[${rust_targets}\]#" config.toml || die
+
+		ewarn
+		ewarn "Enabled ${cross_rust_target} rust target"
+		ewarn "Using ${cross_toolchain} cross toolchain"
+		ewarn
+		if ! has_version -b 'sys-devel/binutils[multitarget]' ; then
+			ewarn "'sys-devel/binutils[multitarget]' is not installed"
+			ewarn "'strip' will be unable to strip cross libraries"
+			ewarn "cross targets will be installed with full debug information"
+			ewarn "enable 'multitarget' USE flag for binutils to be able to strip object files"
+			ewarn
+			ewarn "Alternatively llvm-strip can be used, it supports stripping any target"
+			ewarn "define STRIP=\"llvm-strip\" to use it (experimental)"
+			ewarn
+		fi
+	done
+	fi # I_KNOW_WHAT_I_AM_DOING_CROSS
+
+	einfo "Rust configured with the following flags:"
+	echo
+	echo RUSTFLAGS="\"${RUSTFLAGS}\""
+	echo RUSTFLAGS_BOOTSTRAP="\"${RUSTFLAGS_BOOTSTRAP}\""
+	echo RUSTFLAGS_NOT_BOOTSTRAP="\"${RUSTFLAGS_NOT_BOOTSTRAP}\""
+	echo MAGIC_EXTRA_RUSTFLAGS="\"${MAGIC_EXTRA_RUSTFLAGS}\""
+	env | grep "CARGO_TARGET_.*_RUSTFLAGS="
+	env | grep "CFLAGS_.*"
+	echo
+	einfo "config.toml contents:"
+	cat "${S}"/config.toml || die
+	echo
+}
+
+src_compile() {
+	RUST_BACKTRACE=1 "${EPYTHON}" ./x.py build -vvv --config="${S}"/config.toml -j$(makeopts_jobs) || die
+}
+
+src_test() {
+	# https://rustc-dev-guide.rust-lang.org/tests/intro.html
+
+	# those are basic and codegen tests.
+	local tests=(
+		codegen
+		codegen-units
+		compile-fail
+		incremental
+		mir-opt
+		pretty
+		run-make
+	)
+
+	# fails if llvm is not built with ALL targets.
+	# and known to fail with system llvm sometimes.
+	use system-llvm || tests+=( assembly )
+
+	# fragile/expensive/less important tests
+	# or tests that require extra builds
+	# TODO: instead of skipping, just make some nonfatal.
+	if [[ ${ERUST_RUN_EXTRA_TESTS:-no} != no ]]; then
+		tests+=(
+			rustdoc
+			rustdoc-js
+			rustdoc-js-std
+			rustdoc-ui
+			run-make-fulldeps
+			ui
+			ui-fulldeps
+		)
+	fi
+
+	local i failed=()
+	einfo "rust_src_test: enabled tests ${tests[@]/#/src/test/}"
+	for i in "${tests[@]}"; do
+		local t="src/test/${i}"
+		einfo "rust_src_test: running ${t}"
+		if ! RUST_BACKTRACE=1 "${EPYTHON}" ./x.py test -vv --config="${S}"/config.toml \
+				-j$(makeopts_jobs) --no-doc --no-fail-fast "${t}"
+		then
+				failed+=( "${t}" )
+				eerror "rust_src_test: ${t} failed"
+		fi
+	done
+
+	if [[ ${#failed[@]} -ne 0 ]]; then
+		eerror "rust_src_test: failure summary: ${failed[@]}"
+		die "aborting due to test failures"
+	fi
+}
+
+src_install() {
+	DESTDIR="${D}" "${EPYTHON}" ./x.py install -vv --config="${S}"/config.toml -j$(makeopts_jobs) || die
+
+	# bug #689562, #689160
+	rm -v "${ED}/usr/lib/${PN}/${PV}/etc/bash_completion.d/cargo" || die
+	rmdir -v "${ED}/usr/lib/${PN}/${PV}"/etc{/bash_completion.d,} || die
+	newbashcomp src/tools/cargo/src/etc/cargo.bashcomp.sh cargo
+
+	local symlinks=(
+		cargo
+		rustc
+		rustdoc
+		rust-gdb
+		rust-gdbgui
+		rust-lldb
+	)
+
+	use clippy && symlinks+=( clippy-driver cargo-clippy )
+	use miri && symlinks+=( miri cargo-miri )
+	use profiler && symlinks+=( rust-demangler )
+	use rustfmt && symlinks+=( rustfmt cargo-fmt )
+	use rust-analyzer && symlinks+=( rust-analyzer )
+
+	einfo "installing eselect-rust symlinks and paths: ${symlinks[@]}"
+	local i
+	for i in "${symlinks[@]}"; do
+		# we need realpath on /usr/bin/* symlink return version-appended binary path.
+		# so /usr/bin/rustc should point to /usr/lib/rust/<ver>/bin/rustc-<ver>
+		# need to fix eselect-rust to remove this hack.
+		local ver_i="${i}-${PV}"
+		if [[ -f "${ED}/usr/lib/${PN}/${PV}/bin/${i}" ]]; then
+			einfo "Installing ${i} symlink"
+			ln -v "${ED}/usr/lib/${PN}/${PV}/bin/${i}" "${ED}/usr/lib/${PN}/${PV}/bin/${ver_i}" || die
+		else
+			ewarn "${i} symlink requested, but source file not found"
+			ewarn "please report this"
+		fi
+		dosym "../lib/${PN}/${PV}/bin/${ver_i}" "/usr/bin/${ver_i}"
+	done
+
+	# symlinks to switch components to active rust in eselect
+	dosym "${PV}/lib" "/usr/lib/${PN}/lib-${PV}"
+	dosym "${PV}/libexec" "/usr/lib/${PN}/libexec-${PV}"
+	dosym "${PV}/share/man" "/usr/lib/${PN}/man-${PV}"
+	dosym "rust/${PV}/lib/rustlib" "/usr/lib/rustlib-${PV}"
+	dosym "../../lib/${PN}/${PV}/share/doc/rust" "/usr/share/doc/${P}"
+
+	newenvd - "50${P}" <<-_EOF_
+		LDPATH="${EPREFIX}/usr/lib/rust/lib"
+		MANPATH="${EPREFIX}/usr/lib/rust/man"
+	_EOF_
+
+	rm -rf "${ED}/usr/lib/${PN}/${PV}"/*.old || die
+	rm -rf "${ED}/usr/lib/${PN}/${PV}/bin"/*.old || die
+	rm -rf "${ED}/usr/lib/${PN}/${PV}/doc"/*.old || die
+
+	# note: eselect-rust adds EROOT to all paths below
+	cat <<-_EOF_ > "${T}/provider-${P}"
+		/usr/bin/cargo
+		/usr/bin/rustdoc
+		/usr/bin/rust-gdb
+		/usr/bin/rust-gdbgui
+		/usr/bin/rust-lldb
+		/usr/lib/rustlib
+		/usr/lib/rust/lib
+		/usr/lib/rust/libexec
+		/usr/lib/rust/man
+		/usr/share/doc/rust
+	_EOF_
+
+	if use clippy; then
+		echo /usr/bin/clippy-driver >> "${T}/provider-${P}"
+		echo /usr/bin/cargo-clippy >> "${T}/provider-${P}"
+	fi
+	if use miri; then
+		echo /usr/bin/miri >> "${T}/provider-${P}"
+		echo /usr/bin/cargo-miri >> "${T}/provider-${P}"
+	fi
+	if use profiler; then
+		echo /usr/bin/rust-demangler >> "${T}/provider-${P}"
+	fi
+	if use rustfmt; then
+		echo /usr/bin/rustfmt >> "${T}/provider-${P}"
+		echo /usr/bin/cargo-fmt >> "${T}/provider-${P}"
+	fi
+	if use rust-analyzer; then
+		echo /usr/bin/rust-analyzer >> "${T}/provider-${P}"
+	fi
+
+	insinto /etc/env.d/rust
+	doins "${T}/provider-${P}"
+
+	if use dist; then
+		insinto "/usr/lib/${PN}/${PV}/dist"
+		doins -r "${S}/build/dist/."
+	fi
+}
+
+pkg_postinst() {
+	eselect rust update
+
+	if has_version dev-debug/gdb || has_version dev-debug/lldb; then
+		elog "Rust installs a helper script for calling GDB and LLDB,"
+		elog "for your convenience it is installed under /usr/bin/rust-{gdb,lldb}-${PV}."
+	fi
+
+	if has_version app-editors/emacs; then
+		elog "install app-emacs/rust-mode to get emacs support for rust."
+	fi
+
+	if has_version app-editors/gvim || has_version app-editors/vim; then
+		elog "install app-vim/rust-vim to get vim support for rust."
+	fi
+}
+
+pkg_postrm() {
+	eselect rust cleanup
+}