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path: root/user/thunderbird/triplet-vendor-support.patch
blob: 84236b8ba2c453c1d31071ed904951dd57392820 (plain) (blame)
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Squashed version of https://github.com/bytecodealliance/target-lexicon/pull/35

diff -Naur thunderbird-91.13.0/third_party/rust/target-lexicon-0.9.0_orig/build.rs thunderbird-91.13.0/third_party/rust/target-lexicon-0.9.0/build.rs
--- thunderbird-91.13.0/third_party/rust/target-lexicon-0.9.0_orig/build.rs	2022-08-15 13:05:59.000000000 -0500
+++ thunderbird-91.13.0/third_party/rust/target-lexicon-0.9.0/build.rs	2022-11-23 00:35:04.697192794 -0600
@@ -32,6 +32,7 @@
     }
 }
 
+use self::targets::Vendor;
 use self::triple::Triple;
 
 fn main() {
@@ -52,6 +53,8 @@
     writeln!(out, "use crate::Aarch64Architecture::*;")?;
     writeln!(out, "#[allow(unused_imports)]")?;
     writeln!(out, "use crate::ArmArchitecture::*;")?;
+    writeln!(out, "#[allow(unused_imports)]")?;
+    writeln!(out, "use crate::CustomVendor;")?;
     writeln!(out)?;
     writeln!(out, "/// The `Triple` of the current host.")?;
     writeln!(out, "pub const HOST: Triple = Triple {{")?;
@@ -60,7 +63,7 @@
         "    architecture: Architecture::{:?},",
         triple.architecture
     )?;
-    writeln!(out, "    vendor: Vendor::{:?},", triple.vendor)?;
+    writeln!(out, "    vendor: {},", vendor_display(&triple.vendor))?;
     writeln!(
         out,
         "    operating_system: OperatingSystem::{:?},",
@@ -90,7 +93,7 @@
     writeln!(out, "impl Vendor {{")?;
     writeln!(out, "    /// Return the vendor for the current host.")?;
     writeln!(out, "    pub const fn host() -> Self {{")?;
-    writeln!(out, "        Vendor::{:?}", triple.vendor)?;
+    writeln!(out, "        {}", vendor_display(&triple.vendor))?;
     writeln!(out, "    }}")?;
     writeln!(out, "}}")?;
     writeln!(out)?;
@@ -138,7 +141,11 @@
         "            architecture: Architecture::{:?},",
         triple.architecture
     )?;
-    writeln!(out, "            vendor: Vendor::{:?},", triple.vendor)?;
+    writeln!(
+        out,
+        "            vendor: {},",
+        vendor_display(&triple.vendor)
+    )?;
     writeln!(
         out,
         "            operating_system: OperatingSystem::{:?},",
@@ -160,3 +167,13 @@
 
     Ok(())
 }
+
+fn vendor_display(vendor: &Vendor) -> String {
+    match vendor {
+        Vendor::Custom(custom) => format!(
+            "Vendor::Custom(CustomVendor::Static({:?}))",
+            custom.as_str()
+        ),
+        known => format!("Vendor::{:?}", known),
+    }
+}
diff -Naur thunderbird-91.13.0/third_party/rust/target-lexicon-0.9.0_orig/src/lib.rs thunderbird-91.13.0/third_party/rust/target-lexicon-0.9.0/src/lib.rs
--- thunderbird-91.13.0/third_party/rust/target-lexicon-0.9.0_orig/src/lib.rs	2022-08-15 13:05:37.000000000 -0500
+++ thunderbird-91.13.0/third_party/rust/target-lexicon-0.9.0/src/lib.rs	2022-11-23 00:35:04.697192794 -0600
@@ -28,7 +28,7 @@
 pub use self::host::HOST;
 pub use self::parse_error::ParseError;
 pub use self::targets::{
-    Aarch64Architecture, Architecture, ArmArchitecture, BinaryFormat, Environment, OperatingSystem,
-    Vendor,
+    Aarch64Architecture, Architecture, ArmArchitecture, BinaryFormat, CustomVendor, Environment,
+    OperatingSystem, Vendor,
 };
 pub use self::triple::{CallingConvention, Endianness, PointerWidth, Triple};
diff -Naur thunderbird-91.13.0/third_party/rust/target-lexicon-0.9.0_orig/src/targets.rs thunderbird-91.13.0/third_party/rust/target-lexicon-0.9.0/src/targets.rs
--- thunderbird-91.13.0/third_party/rust/target-lexicon-0.9.0_orig/src/targets.rs	2022-08-15 13:05:42.000000000 -0500
+++ thunderbird-91.13.0/third_party/rust/target-lexicon-0.9.0/src/targets.rs	2022-11-23 00:35:04.697192794 -0600
@@ -1,7 +1,10 @@
 // This file defines all the identifier enums and target-aware logic.
 
 use crate::triple::{Endianness, PointerWidth, Triple};
+use alloc::boxed::Box;
+use alloc::string::String;
 use core::fmt;
+use core::hash::{Hash, Hasher};
 use core::str::FromStr;
 
 /// The "architecture" field, which in some cases also specifies a specific
@@ -290,9 +293,42 @@
     }
 }
 
+/// A string for a `Vendor::Custom` that can either be used in `const`
+/// contexts or hold dynamic strings.
+#[derive(Clone, Debug, Eq)]
+pub enum CustomVendor {
+    /// An owned `String`. This supports the general case.
+    Owned(Box<String>),
+    /// A static `str`, so that `CustomVendor` can be constructed in `const`
+    /// contexts.
+    Static(&'static str),
+}
+
+impl CustomVendor {
+    /// Extracts a string slice.
+    pub fn as_str(&self) -> &str {
+        match self {
+            CustomVendor::Owned(s) => s,
+            CustomVendor::Static(s) => s,
+        }
+    }
+}
+
+impl PartialEq for CustomVendor {
+    fn eq(&self, other: &Self) -> bool {
+        self.as_str() == other.as_str()
+    }
+}
+
+impl Hash for CustomVendor {
+    fn hash<H: Hasher>(&self, state: &mut H) {
+        self.as_str().hash(state)
+    }
+}
+
 /// The "vendor" field, which in practice is little more than an arbitrary
 /// modifier.
-#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
+#[derive(Clone, Debug, PartialEq, Eq, Hash)]
 #[allow(missing_docs)]
 pub enum Vendor {
     Unknown,
@@ -306,6 +342,15 @@
     Sun,
     Uwp,
     Wrs,
+
+    /// A custom vendor. "Custom" in this context means that the vendor is
+    /// not specifically recognized by upstream Autotools, LLVM, Rust, or other
+    /// relevant authorities on triple naming. It's useful for people building
+    /// and using locally patched toolchains.
+    ///
+    /// Outside of such patched environments, users of `target-lexicon` should
+    /// treat `Custom` the same as `Unknown` and ignore the string.
+    Custom(CustomVendor),
 }
 
 /// The "operating system" field, which sometimes implies an environment, and
@@ -717,6 +762,7 @@
             Vendor::Sun => "sun",
             Vendor::Uwp => "uwp",
             Vendor::Wrs => "wrs",
+            Vendor::Custom(ref name) => name.as_str(),
         };
         f.write_str(s)
     }
@@ -738,7 +784,43 @@
             "sun" => Vendor::Sun,
             "uwp" => Vendor::Uwp,
             "wrs" => Vendor::Wrs,
-            _ => return Err(()),
+            custom => {
+                use alloc::borrow::ToOwned;
+
+                // A custom vendor. Since triple syntax is so loosely defined,
+                // be as conservative as we can to avoid potential ambiguities.
+                // We err on the side of being too strict here, as we can
+                // always relax it if needed.
+
+                // Don't allow empty string names.
+                if custom.is_empty() {
+                    return Err(());
+                }
+
+                // Don't allow any other recognized name as a custom vendor,
+                // since vendors can be omitted in some contexts.
+                if Architecture::from_str(custom).is_ok()
+                    || OperatingSystem::from_str(custom).is_ok()
+                    || Environment::from_str(custom).is_ok()
+                    || BinaryFormat::from_str(custom).is_ok()
+                {
+                    return Err(());
+                }
+
+                // Require the first character to be an ascii lowercase.
+                if !custom.chars().nth(0).unwrap().is_ascii_lowercase() {
+                    return Err(());
+                }
+
+                // Restrict the set of characters permitted in a custom vendor.
+                if custom.chars().any(|c: char| {
+                    !(c.is_ascii_lowercase() || c.is_ascii_digit() || c == '_' || c == '.')
+                }) {
+                    return Err(());
+                }
+
+                Vendor::Custom(CustomVendor::Owned(Box::new(custom.to_owned())))
+            }
         })
     }
 }
@@ -1120,4 +1202,87 @@
         assert_eq!(t.environment, Environment::Eabihf);
         assert_eq!(t.binary_format, BinaryFormat::Elf);
     }
+
+    #[test]
+    fn custom_vendors() {
+        // Test various invalid cases.
+        assert!(Triple::from_str("x86_64--linux").is_err());
+        assert!(Triple::from_str("x86_64-42-linux").is_err());
+        assert!(Triple::from_str("x86_64-__customvendor__-linux").is_err());
+        assert!(Triple::from_str("x86_64-^-linux").is_err());
+        assert!(Triple::from_str("x86_64- -linux").is_err());
+        assert!(Triple::from_str("x86_64-CustomVendor-linux").is_err());
+        assert!(Triple::from_str("x86_64-linux-linux").is_err());
+        assert!(Triple::from_str("x86_64-x86_64-linux").is_err());
+        assert!(Triple::from_str("x86_64-elf-linux").is_err());
+        assert!(Triple::from_str("x86_64-gnu-linux").is_err());
+        assert!(Triple::from_str("x86_64-linux-customvendor").is_err());
+        assert!(Triple::from_str("customvendor").is_err());
+        assert!(Triple::from_str("customvendor-x86_64").is_err());
+        assert!(Triple::from_str("x86_64-").is_err());
+        assert!(Triple::from_str("x86_64--").is_err());
+
+        // Test various Unicode things.
+        assert!(
+            Triple::from_str("x86_64-𝓬𝓾𝓼𝓽𝓸𝓶𝓿𝓮𝓷𝓭𝓸𝓻-linux").is_err(),
+            "unicode font hazard"
+        );
+        assert!(
+            Triple::from_str("x86_64-ćúśtőḿvéńdőŕ-linux").is_err(),
+            "diacritical mark stripping hazard"
+        );
+        assert!(
+            Triple::from_str("x86_64-customvendοr-linux").is_err(),
+            "homoglyph hazard"
+        );
+        assert!(Triple::from_str("x86_64-customvendor-linux").is_ok());
+        assert!(
+            Triple::from_str("x86_64-ffi-linux").is_err(),
+            "normalization hazard"
+        );
+        assert!(Triple::from_str("x86_64-ffi-linux").is_ok());
+        assert!(
+            Triple::from_str("x86_64-custom‍vendor-linux").is_err(),
+            "zero-width character hazard"
+        );
+        assert!(
+            Triple::from_str("x86_64-customvendor-linux").is_err(),
+            "BOM hazard"
+        );
+
+        // Test some valid cases.
+        let t = Triple::from_str("x86_64-customvendor-linux")
+            .expect("can't parse target with custom vendor");
+        assert_eq!(t.architecture, Architecture::X86_64);
+        assert_eq!(
+            t.vendor,
+            Vendor::Custom(CustomVendor::Static("customvendor"))
+        );
+        assert_eq!(t.operating_system, OperatingSystem::Linux);
+        assert_eq!(t.environment, Environment::Unknown);
+        assert_eq!(t.binary_format, BinaryFormat::Elf);
+        assert_eq!(t.to_string(), "x86_64-customvendor-linux");
+
+        let t =
+            Triple::from_str("x86_64-customvendor").expect("can't parse target with custom vendor");
+        assert_eq!(t.architecture, Architecture::X86_64);
+        assert_eq!(
+            t.vendor,
+            Vendor::Custom(CustomVendor::Static("customvendor"))
+        );
+        assert_eq!(t.operating_system, OperatingSystem::Unknown);
+        assert_eq!(t.environment, Environment::Unknown);
+        assert_eq!(t.binary_format, BinaryFormat::Unknown);
+
+        assert_eq!(
+            Triple::from_str("unknown-foo"),
+            Ok(Triple {
+                architecture: Architecture::Unknown,
+                vendor: Vendor::Custom(CustomVendor::Static("foo")),
+                operating_system: OperatingSystem::Unknown,
+                environment: Environment::Unknown,
+                binary_format: BinaryFormat::Unknown,
+            })
+        );
+    }
 }
diff -Naur thunderbird-91.13.0/third_party/rust/target-lexicon-0.9.0_orig/src/triple.rs thunderbird-91.13.0/third_party/rust/target-lexicon-0.9.0/src/triple.rs
--- thunderbird-91.13.0/third_party/rust/target-lexicon-0.9.0_orig/src/triple.rs	2022-08-15 13:05:59.000000000 -0500
+++ thunderbird-91.13.0/third_party/rust/target-lexicon-0.9.0/src/triple.rs	2022-11-23 00:35:04.697192794 -0600
@@ -323,10 +323,6 @@
             Err(ParseError::UnrecognizedArchitecture("foo".to_owned()))
         );
         assert_eq!(
-            Triple::from_str("unknown-foo"),
-            Err(ParseError::UnrecognizedVendor("foo".to_owned()))
-        );
-        assert_eq!(
             Triple::from_str("unknown-unknown-foo"),
             Err(ParseError::UnrecognizedOperatingSystem("foo".to_owned()))
         );
diff -Naur thunderbird-91.13.0/third_party/rust/target-lexicon-0.9.0_orig/.cargo-checksum.json thunderbird-91.13.0/third_party/rust/target-lexicon-0.9.0/.cargo-checksum.json
--- thunderbird-91.13.0/third_party/rust/target-lexicon-0.9.0_orig/.cargo-checksum.json	2022-08-15 13:05:38.000000000 -0500
+++ thunderbird-91.13.0/third_party/rust/target-lexicon-0.9.0/.cargo-checksum.json	2022-11-23 01:16:14.304912521 -0600
@@ -1 +1 @@
-{"files":{"Cargo.lock":"a1a162e6ce8fc2234a6ddf7090410006a1920ace8738772e32a5b50e4780c19d","Cargo.toml":"f3b545fa0f184fd0d3624e6e5c205fcbdf1ad0934a2e08406549ad53c2a62ac3","LICENSE":"268872b9816f90fd8e85db5a28d33f8150ebb8dd016653fb39ef1f94f2686bc5","README.md":"c3467056d91be3f59562158ee9604c729b5b5f473efbefb036032803eb76809e","build.rs":"723100e9cdc30cd8c48407233c2cffa10f5b10703a0a11bac1230d8b86e49ccf","examples/host.rs":"503bafddfb372123fe4dc0e7b8037808beb5bfe6df60c00d3315922bd3792c6c","examples/misc.rs":"49a579845450b7b020ed5c97dca142fc548725893cbc82f6f750ee0caab2beca","newlist":"89564342916321c5bc35e772d374a7f0af22cc9ae6dcc0027eca48d2269f18cb","src/host.rs":"fb543df4f362e9119a58523563e453110f4e3a426f0995911d0ca386657cf1d9","src/lib.rs":"4414353c30f25d44df6cc14f7f9eea9991222289c6aa662b74406f6923235970","src/parse_error.rs":"b3735eabc0fd0a9dfdd6375662f20ec96a79852a00a05a98fb2e421545285e53","src/targets.rs":"9ccc0849cff06d8906dacbdc15136cc47fab85ccd795033ddfdde1397dfcfe32","src/triple.rs":"949bd83b043b53b18f643ebc3fbebbfe02a13998b787fda432a5d36aa27d20bd","test.sh":"22e3c630a6c84e90d5c70c367a6712be8eeca1e7682c00d1f65bf53e330e9191"},"package":"6f4c118a7a38378f305a9e111fcb2f7f838c0be324bfb31a77ea04f7f6e684b4"}
\ No newline at end of file
+{"files":{"Cargo.lock":"a1a162e6ce8fc2234a6ddf7090410006a1920ace8738772e32a5b50e4780c19d","Cargo.toml":"f3b545fa0f184fd0d3624e6e5c205fcbdf1ad0934a2e08406549ad53c2a62ac3","LICENSE":"268872b9816f90fd8e85db5a28d33f8150ebb8dd016653fb39ef1f94f2686bc5","README.md":"c3467056d91be3f59562158ee9604c729b5b5f473efbefb036032803eb76809e","build.rs":"85d6a1b6392b56946f48c0ff1526736a37fe012951bf3855709da1d6cfb4baa0","examples/host.rs":"503bafddfb372123fe4dc0e7b8037808beb5bfe6df60c00d3315922bd3792c6c","examples/misc.rs":"49a579845450b7b020ed5c97dca142fc548725893cbc82f6f750ee0caab2beca","newlist":"89564342916321c5bc35e772d374a7f0af22cc9ae6dcc0027eca48d2269f18cb","src/host.rs":"fb543df4f362e9119a58523563e453110f4e3a426f0995911d0ca386657cf1d9","src/lib.rs":"89986c98b9a04e0f1e957e0127e23a53048a1f0d597493723c4bba031c2ca32d","src/parse_error.rs":"b3735eabc0fd0a9dfdd6375662f20ec96a79852a00a05a98fb2e421545285e53","src/targets.rs":"f2048f06e3e2151a8181d8c92651fa45e64b8bfdfd18ead4b6c18ee7c9fb9003","src/triple.rs":"4704266fec8763bc70d230aad3608bdb790b51e41149056daa2ce0d5fdaef5a3","test.sh":"22e3c630a6c84e90d5c70c367a6712be8eeca1e7682c00d1f65bf53e330e9191"},"package":"6f4c118a7a38378f305a9e111fcb2f7f838c0be324bfb31a77ea04f7f6e684b4"}