init project

Library/PackageCache/com.unity.toolchain.linux-x86_64@2.0.11/Editor/Unity.Toolchain.Linux-x86_64.asmdef

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+{
+    "name": "Unity.Toolchain.Linux-x86_64",
+    "references": [
+        "Unity.SysrootPackage.Editor",
+        "Unity.Sysroot.Linux_x86_64"
+    ],
+    "includePlatforms": [
+        "Editor"
+    ],
+    "excludePlatforms": [],
+    "versionDefines": [
+        {
+            "name": "Unity",
+            "expression": "(0,2022.1.23f1)",
+            "define": "IL2CPP_LEGACY_API_PRESENT"
+        }
+    ]
+}

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Library/PackageCache/com.unity.toolchain.linux-x86_64@2.0.11/Editor/Unity.Toolchain.cs

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+using System;
+using System.IO;
+using System.Collections.Generic;
+using UnityEngine;
+using NiceIO.Sysroot;
+using UnityEditor.Il2Cpp;
+
+namespace UnityEditor.Il2Cpp
+{
+    /// <summary>
+    /// Toolchain package for building Linux x86_64 targets on Linux x86_64 host
+    /// </summary>
+    public class ToolchainLinuxX86_64: SysrootLinuxX86_64
+    {
+        private string _packageName           => "com.unity.toolchain.linux-x86_64";
+        /// <summary>
+        /// Name of package
+        /// </summary>
+        public override string Name           => _packageName;
+        /// <summary>
+        /// Name of host platform
+        /// </summary>
+        public override string HostPlatform   => "linux";
+        /// <summary>
+        /// Name of host architecture
+        /// </summary>
+        public override string HostArch       => "x86_64";
+        /// <summary>
+        /// Name of target platform
+        /// </summary>
+        public override string TargetPlatform => "linux";
+        /// <summary>
+        /// Name of target architecture
+        /// </summary>
+        public override string TargetArch     => "x86_64";
+
+        private string _payloadVersion => "llvm-9.0.1-1";
+        private string _payloadDir;
+
+        private string _target => "x86_64-glibc2.17-linux-gnu";
+        private string _linkerFile => "bin/ld.lld";
+
+        /// <summary>
+        /// Initialize toolchain package
+        /// </summary>
+        public ToolchainLinuxX86_64()
+            : base()
+        {
+            _payloadDir = $"linux-x86/{_payloadVersion}";
+            RegisterPayload(_packageName, _payloadDir);
+        }
+
+        /// <summary>
+        /// Supplies arguments to il2cpp.exe
+        /// </summary>
+        /// <returns>The next argument to il2cpp.exe</returns>
+        public override IEnumerable<string> GetIl2CppArguments()
+        {
+            var toolpath = PayloadInstallDirectory(_payloadDir);
+            var linkerpath = toolpath.Combine(_linkerFile);
+
+            yield return $"--sysroot-path={SysrootInstallDirectory()}";
+            yield return $"--compiler-flags=\"-target {_target}\"";
+            yield return $"--tool-chain-path={toolpath.InQuotes()}";
+            yield return $"--linker-flags=\"-fuse-ld={linkerpath.InQuotes()} -target {_target} -static-libstdc++\"";
+        }
+
+#if !IL2CPP_LEGACY_API_PRESENT
+        public override string GetSysrootPath()
+        {
+            return SysrootInstallDirectory().Trim('"');
+        }
+
+        public override string GetToolchainPath()
+        {
+            return PayloadInstallDirectory(_payloadDir).ToString();
+        }
+
+        public override string GetIl2CppCompilerFlags()
+        {
+            return $"-target {_target}";
+        }
+
+        public override string GetIl2CppLinkerFlags()
+        {
+            var toolpath = PayloadInstallDirectory(_payloadDir);
+            var linkerpath = toolpath.Combine(_linkerFile);
+
+            return $"-fuse-ld={linkerpath.InQuotes()} -target {_target} -static-libstdc++";
+        }
+#endif
+    }
+}

Library/PackageCache/com.unity.toolchain.linux-x86_64@2.0.11/Editor/Unity.Toolchain.cs.meta

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