94 lines
2.7 KiB
C#
94 lines
2.7 KiB
C#
using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using Mono.Linker;
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using Mono.Linker.Steps;
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using Mono.Cecil;
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using Mono.Cecil.Cil;
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namespace Mono.Tuner {
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public class CustomizeActions : BaseStep {
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readonly bool link_sdk_only;
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readonly HashSet<string> skipped_assemblies;
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public CustomizeActions (bool link_sdk_only, IEnumerable<string> skipped_assemblies)
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{
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this.link_sdk_only = link_sdk_only;
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this.skipped_assemblies = new HashSet<string> (skipped_assemblies);
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}
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protected override void ProcessAssembly (AssemblyDefinition assembly)
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{
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if (!IsSkipped (assembly) && IsLinked (assembly)) {
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if (!Annotations.HasAction (assembly)) // stray assembly not picked up when resolving references
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Annotations.SetAction (assembly, AssemblyAction.Link);
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return;
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}
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ProcessUserAssembly (assembly);
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}
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protected virtual bool IsPreservedAttribute (CustomAttribute attribute)
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{
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// [assembly: Preserve (type)] does not preserve all the code in the assembly, in fact it might
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// not preserve anything in _this_ assembly, but something in a separate assembly (reference)
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if (attribute.HasConstructorArguments)
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return false;
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return (attribute.AttributeType.Name == "PreserveAttribute");
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}
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protected virtual bool IsLinkerSafeAttribute (CustomAttribute attribute)
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{
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return (attribute.AttributeType.Name == "LinkerSafeAttribute");
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}
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const ModuleAttributes Supported = ModuleAttributes.ILOnly | ModuleAttributes.Required32Bit |
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ModuleAttributes.Preferred32Bit | ModuleAttributes.StrongNameSigned;
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protected virtual bool IsSkipped (AssemblyDefinition assembly)
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{
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// Cecil can't save back mixed-mode assemblies - so we can't link them
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if ((assembly.MainModule.Attributes & ~Supported) != 0)
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return true;
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if (assembly.HasCustomAttributes) {
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foreach (var ca in assembly.CustomAttributes) {
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if (IsPreservedAttribute (ca))
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return true;
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}
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}
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return skipped_assemblies.Contains (assembly.Name.Name);
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}
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protected virtual bool IsLinked (AssemblyDefinition assembly)
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{
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// LinkAll
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if (!link_sdk_only)
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return true;
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// Link SDK : applies to BCL/SDK and product assembly (e.g. monotouch.dll)
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if (Profile.IsSdkAssembly (assembly))
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return true;
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if (Profile.IsProductAssembly (assembly))
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return true;
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// the assembly can be marked with [LinkAssembly]
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if (assembly.HasCustomAttributes) {
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foreach (var ca in assembly.CustomAttributes) {
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if (IsLinkerSafeAttribute (ca))
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return true;
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}
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}
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return false;
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}
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protected void ProcessUserAssembly (AssemblyDefinition assembly)
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{
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ResolveFromAssemblyStep.ProcessLibrary (Context, assembly);
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}
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}
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}
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