Fixed builds with modified libc

compiler/rustc_codegen_ssa/src/back/link.rs

@@ -2967,7 +2967,7 @@ fn add_apple_sdk(cmd: &mut dyn Linker, sess: &Session, flavor: LinkerFlavor) {
         ("aarch64", "watchos") if llvm_target.ends_with("-simulator") => "watchsimulator",
         ("aarch64", "watchos") => "watchos",
         ("aarch64", "visionos") if llvm_target.ends_with("-simulator") => "xrsimulator",
-        ("aarch64", "visionos") => "visionos",
+        ("aarch64", "visionos") => "xros",
         ("arm", "watchos") => "watchos",
         (_, "macos") => "macosx",
         _ => {
@@ -3025,10 +3025,10 @@ fn get_apple_sdk_root(sdk_name: &str) -> Result<String, errors::AppleSdkRootErro
             "watchsimulator"
                 if sdkroot.contains("WatchOS.platform") || sdkroot.contains("MacOSX.platform") => {}
             "visionos"
-                if sdkroot.contains("visionos.platform") || sdkroot.contains("MacOSX.platform") => {
+                if sdkroot.contains("XROS.platform") || sdkroot.contains("MacOSX.platform") => {
             }
             "visionossimulator"
-                if sdkroot.contains("visionos.platform") || sdkroot.contains("MacOSX.platform") => {
+                if sdkroot.contains("XROS.platform") || sdkroot.contains("MacOSX.platform") => {
             }
             // Ignore `SDKROOT` if it's not a valid path.
             _ if !p.is_absolute() || p == Path::new("/") || !p.exists() => {}

compiler/rustc_target/src/spec/base/apple/mod.rs

@@ -297,7 +297,7 @@ fn link_env_remove(os: &'static str) -> StaticCow<[StaticCow<str>]> {
                 || sdkroot.contains("AppleTVSimulator.platform")
                 || sdkroot.contains("WatchOS.platform")
                 || sdkroot.contains("WatchSimulator.platform")
-                || sdkroot.contains("visionos.platform")
+                || sdkroot.contains("XROS.platform")
             {
                 env_remove.push("SDKROOT".into())
             }
@@ -307,7 +307,7 @@ fn link_env_remove(os: &'static str) -> StaticCow<[StaticCow<str>]> {
         // although this is apparently ignored when using the linker at "/usr/bin/ld".
         env_remove.push("IPHONEOS_DEPLOYMENT_TARGET".into());
         env_remove.push("TVOS_DEPLOYMENT_TARGET".into());
-        env_remove.push("VISIONOS_DEPLOYMENT_TARGET".into());
+        env_remove.push("XROS_DEPLOYMENT_TARGET".into());
         env_remove.into()
     } else {
         // Otherwise if cross-compiling for a different OS/SDK (including Mac Catalyst), remove any part
@@ -375,7 +375,7 @@ pub fn watchos_sim_llvm_target(arch: Arch) -> String {
 
 fn visionos_deployment_target() -> (u32, u32) {
     // If you are looking for the default deployment target, prefer `rustc --print deployment-target`.
-    from_set_deployment_target("VISIONOS_DEPLOYMENT_TARGET").unwrap_or((1, 0))
+    from_set_deployment_target("XROS_DEPLOYMENT_TARGET").unwrap_or((1, 0))
 }
 
 pub fn visionos_llvm_target(arch: Arch) -> String {

compiler/rustc_target/src/spec/base/apple/tests.rs

@@ -37,7 +37,7 @@ fn macos_link_environment_unmodified() {
             crate::spec::cvs![
                 "IPHONEOS_DEPLOYMENT_TARGET",
                 "TVOS_DEPLOYMENT_TARGET",
-                "VISIONOS_DEPLOYMENT_TARGET"
+                "XROS_DEPLOYMENT_TARGET"
             ],
         );
     }

compiler/rustc_target/src/spec/targets/aarch64_apple_visionos.rs

@@ -15,10 +15,10 @@ pub fn target() -> Target {
             std: None,
         },
         pointer_width: 64,
-        data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128".into(),
+        data_layout: "e-m:o-i64:64-i128:128-n32:64-S128".into(),
         arch: arch.target_arch(),
         options: TargetOptions {
-            features: "+neon,+fp-armv8,+apple-a12".into(),
+            features: "+neon,+fp-armv8,+apple-a16".into(),
             max_atomic_width: Some(128),
             frame_pointer: FramePointer::NonLeaf,
             ..base

compiler/rustc_target/src/spec/targets/aarch64_apple_visionos_sim.rs

@@ -15,10 +15,10 @@ pub fn target() -> Target {
             std: None,
         },
         pointer_width: 64,
-        data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128".into(),
+        data_layout: "e-m:o-i64:64-i128:128-n32:64-S128".into(),
         arch: arch.target_arch(),
         options: TargetOptions {
-            features: "+neon,+fp-armv8,+apple-m1".into(),
+            features: "+neon,+fp-armv8,+apple-a16".into(),
             max_atomic_width: Some(128),
             frame_pointer: FramePointer::NonLeaf,
             ..base

library/std/src/os/unix/net/mod.rs

@@ -20,6 +20,7 @@ mod tests;
     target_os = "ios",
     target_os = "tvos",
     target_os = "watchos",
+    target_os = "visionos",
     target_os = "macos",
     target_os = "netbsd",
     target_os = "openbsd",
@@ -46,6 +47,7 @@ pub use self::stream::*;
     target_os = "ios",
     target_os = "tvos",
     target_os = "watchos",
+    target_os = "visionos",
     target_os = "macos",
     target_os = "netbsd",
     target_os = "openbsd",

library/std/src/os/unix/net/stream.rs

@@ -7,6 +7,7 @@
     target_os = "tvos",
     target_os = "macos",
     target_os = "watchos",
+    target_os = "visionos",
     target_os = "netbsd",
     target_os = "openbsd"
 ))]

src/librustdoc/clean/cfg.rs

@@ -511,7 +511,7 @@ impl<'a> fmt::Display for Display<'a> {
                         "wasi" => "WASI",
                         "watchos" => "watchOS",
                         "windows" => "Windows",
-                        "visionos" => "visionos",
+                        "visionos" => "visionOS",
                         _ => "",
                     },
                     (sym::target_arch, Some(arch)) => match arch.as_str() {