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146 changes: 146 additions & 0 deletions
146
src/mono/msbuild/WasmAppBuilder/PInvokeTableGenerator.cs
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,146 @@ | ||
| // -*- indent-tabs-mode: nil -*- | ||
| // Licensed to the .NET Foundation under one or more agreements. | ||
| // The .NET Foundation licenses this file to you under the MIT license. | ||
| // See the LICENSE file in the project root for more information. | ||
|
|
||
| using System; | ||
| using System.Collections.Generic; | ||
| using System.Collections.Immutable; | ||
| using System.Diagnostics; | ||
| using System.IO; | ||
| using System.Linq; | ||
| using System.Text; | ||
| using System.Text.Json; | ||
| using System.Reflection; | ||
| using Microsoft.Build.Framework; | ||
| using Microsoft.Build.Utilities; | ||
|
|
||
| public class PInvokeTableGenerator : Task | ||
| { | ||
| [Required] | ||
| public ITaskItem[]? Modules { get; set; } | ||
| [Required] | ||
| public ITaskItem[]? Assemblies { get; set; } | ||
| [Required] | ||
| public string? OutputPath { get; set; } | ||
|
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| public override bool Execute () { | ||
| GenPInvokeTable (Modules!.Select (item => item.ItemSpec).ToArray (), Assemblies!.Select (item => item.ItemSpec).ToArray ()); | ||
| return true; | ||
| } | ||
|
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| void GenPInvokeTable (string[] pinvokeModules, string[] assemblies) { | ||
| var modules = new Dictionary<string, string> (); | ||
| foreach (var module in pinvokeModules) | ||
| modules [module] = module; | ||
|
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| var pinvokes = new List<PInvoke> (); | ||
|
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| var resolver = new PathAssemblyResolver (assemblies); | ||
| var mlc = new MetadataLoadContext (resolver, "System.Private.CoreLib"); | ||
| foreach (var aname in assemblies) { | ||
| var a = mlc.LoadFromAssemblyPath (aname); | ||
| foreach (var type in a.GetTypes ()) | ||
| CollectPInvokes (pinvokes, type); | ||
| } | ||
|
|
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| Log.LogMessage (MessageImportance.Normal, $"Generating pinvoke table to '{OutputPath}'."); | ||
|
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| using (var w = File.CreateText (OutputPath!)) { | ||
| EmitPInvokeTable (w, modules, pinvokes); | ||
| } | ||
| } | ||
|
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| void CollectPInvokes (List<PInvoke> pinvokes, Type type) { | ||
| foreach (var method in type.GetMethods (BindingFlags.DeclaredOnly|BindingFlags.Public|BindingFlags.NonPublic|BindingFlags.Static|BindingFlags.Instance)) { | ||
| if ((method.Attributes & MethodAttributes.PinvokeImpl) == 0) | ||
| continue; | ||
| var dllimport = method.CustomAttributes.First (attr => attr.AttributeType.Name == "DllImportAttribute"); | ||
| var module = (string)dllimport.ConstructorArguments [0].Value!; | ||
| var entrypoint = (string)dllimport.NamedArguments.First (arg => arg.MemberName == "EntryPoint").TypedValue.Value!; | ||
| pinvokes.Add (new PInvoke (entrypoint, module, method)); | ||
| } | ||
| } | ||
|
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| void EmitPInvokeTable (StreamWriter w, Dictionary<string, string> modules, List<PInvoke> pinvokes) { | ||
| w.WriteLine ("// GENERATED FILE, DO NOT MODIFY"); | ||
| w.WriteLine ("typedef struct {"); | ||
| w.WriteLine ("const char *name;"); | ||
| w.WriteLine ("void *func;"); | ||
| w.WriteLine ("} PinvokeImport;"); | ||
| w.WriteLine (); | ||
|
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| foreach (var pinvoke in pinvokes) { | ||
| if (modules.ContainsKey (pinvoke.Module)) | ||
| w.WriteLine (GenPInvokeDecl (pinvoke)); | ||
| } | ||
|
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| foreach (var module in modules.Keys) { | ||
| string symbol = module.Replace (".", "_") + "_imports"; | ||
| w.WriteLine ("static PinvokeImport " + symbol + " [] = {"); | ||
| foreach (var pinvoke in pinvokes) { | ||
| if (pinvoke.Module == module) | ||
| w.WriteLine ("{\"" + pinvoke.EntryPoint + "\", " + pinvoke.EntryPoint + "},"); | ||
| } | ||
| w.WriteLine ("{NULL, NULL}"); | ||
| w.WriteLine ("};"); | ||
| } | ||
| w.Write ("static void *pinvoke_tables[] = { "); | ||
| foreach (var module in modules.Keys) { | ||
| string symbol = module.Replace (".", "_") + "_imports"; | ||
| w.Write (symbol + ","); | ||
| } | ||
| w.WriteLine ("};"); | ||
| w.Write ("static char *pinvoke_names[] = { "); | ||
| foreach (var module in modules.Keys) { | ||
| w.Write ("\"" + module + "\"" + ","); | ||
| } | ||
| w.WriteLine ("};"); | ||
| } | ||
|
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| string MapType (Type t) { | ||
| string name = t.Name; | ||
| if (name == "Void") | ||
| return "void"; | ||
| else if (name == "Double") | ||
| return "double"; | ||
| else if (name == "Single") | ||
| return "float"; | ||
| else if (name == "Int64") | ||
| return "int64_t"; | ||
| else if (name == "UInt64") | ||
| return "uint64_t"; | ||
| else | ||
| return "int"; | ||
| } | ||
|
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| string GenPInvokeDecl (PInvoke pinvoke) { | ||
| var sb = new StringBuilder (); | ||
| var method = pinvoke.Method; | ||
| sb.Append (MapType (method.ReturnType)); | ||
| sb.Append ($" {pinvoke.EntryPoint} ("); | ||
| int pindex = 0; | ||
| var pars = method.GetParameters (); | ||
| foreach (var p in pars) { | ||
| if (pindex > 0) | ||
| sb.Append (","); | ||
| sb.Append (MapType (pars [pindex].ParameterType)); | ||
| pindex ++; | ||
| } | ||
| sb.Append (");"); | ||
| return sb.ToString (); | ||
| } | ||
| } | ||
|
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| class PInvoke | ||
| { | ||
| public PInvoke (string entry_point, string module, MethodInfo method) { | ||
| EntryPoint = entry_point; | ||
| Module = module; | ||
| Method = method; | ||
| } | ||
|
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||
| public string EntryPoint; | ||
| public string Module; | ||
| public MethodInfo Method; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,16 @@ | ||
| <Project Sdk="Microsoft.NET.Sdk"> | ||
| <PropertyGroup> | ||
| <OutputType>Library</OutputType> | ||
| <EnableDefaultCompileItems>false</EnableDefaultCompileItems> | ||
| </PropertyGroup> | ||
| <ItemGroup> | ||
| <PackageReference Include="Microsoft.Build" Version="$(RefOnlyMicrosoftBuildVersion)" /> | ||
| <PackageReference Include="Microsoft.Build.Framework" Version="$(RefOnlyMicrosoftBuildFrameworkVersion)" /> | ||
| <PackageReference Include="Microsoft.Build.Tasks.Core" Version="$(RefOnlyMicrosoftBuildTasksCoreVersion)" /> | ||
| <PackageReference Include="Microsoft.Build.Utilities.Core" Version="$(RefOnlyMicrosoftBuildUtilitiesCoreVersion)" /> | ||
| <PackageReference Include="System.Reflection.MetadataLoadContext" Version="4.7.1" /> | ||
| </ItemGroup> | ||
| <ItemGroup> | ||
| <Compile Include="PInvokeTableGenerator.cs" /> | ||
| </ItemGroup> | ||
| </Project> |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,100 @@ | ||
| TOP=$(realpath $(CURDIR)/../../..) | ||
| -include Make.config | ||
|
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| # | ||
| # These variables are set by wasm.targets | ||
| # | ||
| EMSDK_PATH?=emsdk | ||
| CONFIG?=Release | ||
| BINDIR?=$(TOP)/artifacts/bin | ||
| OBJDIR?=$(TOP)/artifacts/obj | ||
| PINVOKE_TABLE?=$(TOP)/artifacts/obj/mono/Browser.wasm.$(CONFIG)/wasm/pinvoke-table.h | ||
| MONO_BIN_DIR?=$(BINDIR)/mono/Browser.wasm.$(CONFIG) | ||
| SYS_NATIVE_DIR?=$(BINDIR)/native/net5.0-Browser-$(CONFIG)-wasm/ | ||
|
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| all: build-native | ||
|
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| # | ||
| # EMSCRIPTEN SETUP | ||
| # | ||
| # If EMSDK_PATH is not set by the caller, download and setup a local emsdk install. | ||
| # | ||
|
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| EMSCRIPTEN_VERSION=1.39.11 | ||
| EMSDK_LOCAL_PATH=emsdk | ||
| EMCC=source $(CURDIR)/emsdk_env.sh && emcc | ||
|
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| .stamp-wasm-install-and-select-$(EMSCRIPTEN_VERSION): | ||
| rm -rf $(EMSDK_LOCAL_PATH) | ||
| git clone https://github.com/emscripten-core/emsdk.git $(EMSDK_LOCAL_PATH) | ||
| cd $(EMSDK_LOCAL_PATH) && git checkout $(EMSCRIPTEN_VERSION) | ||
| cd $(EMSDK_LOCAL_PATH) && ./emsdk install $(EMSCRIPTEN_VERSION) | ||
| cd $(EMSDK_LOCAL_PATH) && ./emsdk activate --embedded $(EMSCRIPTEN_VERSION) | ||
| touch $@ | ||
|
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| ifeq ($(EMSDK_PATH),emsdk) | ||
| provision-wasm: .stamp-wasm-install-and-select-$(EMSCRIPTEN_VERSION) | ||
| else | ||
| provision-wasm: | ||
| endif | ||
|
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| # emsdk_env.sh calls emsdk construct_env which is a bit slow so make a copy | ||
| emsdk_env.sh: | provision-wasm | ||
| cd $(EMSDK_PATH) && ./emsdk construct_env $(CURDIR)/emsdk_env.sh | ||
|
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| MONO_OBJ_DIR=$(OBJDIR)/mono/Browser.wasm.$(CONFIG) | ||
| MONO_LIBS = $(MONO_BIN_DIR)/{libmono-ee-interp.a,libmono.a,libmono-ilgen.a,libmono-icall-table.a} ${SYS_NATIVE_DIR}/libSystem.Native.a | ||
| MONO_INCLUDE_DIR=$(MONO_BIN_DIR)/include/mono-2.0 | ||
| BUILDS_BIN_DIR=$(MONO_BIN_DIR)/wasm/runtimes | ||
| BUILDS_OBJ_DIR=$(MONO_OBJ_DIR)/wasm/runtimes | ||
|
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| EMCC_FLAGS=--profiling-funcs -s WASM=1 -s ALLOW_MEMORY_GROWTH=1 -s BINARYEN=1 -s ALIASING_FUNCTION_POINTERS=0 -s NO_EXIT_RUNTIME=1 -s "EXTRA_EXPORTED_RUNTIME_METHODS=['ccall', 'FS_createPath', 'FS_createDataFile', 'cwrap', 'setValue', 'getValue', 'UTF8ToString', 'addFunction']" -s "EXPORTED_FUNCTIONS=['_putchar']" --source-map-base http://example.com -s WASM_OBJECT_FILES=0 -s FORCE_FILESYSTEM=1 -s USE_ZLIB=1 | ||
| EMCC_DEBUG_FLAGS =-g -Os -s ASSERTIONS=1 -DENABLE_NETCORE=1 | ||
| EMCC_RELEASE_FLAGS=-Oz --llvm-opts 2 --llvm-lto 1 -DENABLE_NETCORE=1 | ||
|
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| # | ||
| # Interpreter builds | ||
| # | ||
|
|
||
| # $(1) - name | ||
| # $(2) - runtime dir | ||
| # $(3) - EMCC_FLAGS | ||
| # $(4) - libs | ||
| define InterpBuildTemplate | ||
|
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| $(BUILDS_BIN_DIR)/$(1)/: | ||
| mkdir -p $$@ | ||
|
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| $(BUILDS_OBJ_DIR)/$(1)/: | ||
| mkdir -p $$@ | ||
|
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| $(BUILDS_BIN_DIR)/$(1)/dotnet.js: $(BUILDS_OBJ_DIR)/$(1)/driver.o $(BUILDS_OBJ_DIR)/$(1)/corebindings.o runtime/library_mono.js runtime/binding_support.js runtime/dotnet_support.js $(5) | $(BUILDS_BIN_DIR)/$(1)/ emsdk_env.sh | ||
| $(EMCC) $(EMCC_FLAGS) $(3) --js-library runtime/library_mono.js --js-library runtime/binding_support.js --js-library runtime/dotnet_support.js $(BUILDS_OBJ_DIR)/$(1)/driver.o $(BUILDS_OBJ_DIR)/$(1)/corebindings.o $(4) -o $(BUILDS_BIN_DIR)/$(1)/dotnet.js | ||
|
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| $(BUILDS_OBJ_DIR)/$(1)/pinvoke-table.h: $(PINVOKE_TABLE) | $(BUILDS_OBJ_DIR)/$(1)/ | ||
| if cmp -s $(PINVOKE_TABLE) $$@ ; then : ; else cp $(PINVOKE_TABLE) $$@ ; fi | ||
|
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| $(BUILDS_OBJ_DIR)/$(1)/driver.o: runtime/driver.c runtime/corebindings.c $(BUILDS_OBJ_DIR)/$(1)/pinvoke-table.h $(5) | $(BUILDS_OBJ_DIR)/$(1)/ emsdk_env.sh | ||
| $(EMCC) $(EMCC_FLAGS) $(3) -Oz -DCORE_BINDINGS -I$(BUILDS_OBJ_DIR)/$(1) -I$(MONO_INCLUDE_DIR) runtime/driver.c -c -o $$@ | ||
|
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| $(BUILDS_OBJ_DIR)/$(1)/corebindings.o: runtime/corebindings.c | $(BUILDS_OBJ_DIR)/$(1)/ emsdk_env.sh | ||
| $(EMCC) $(3) -Oz -I$(MONO_INCLUDE_DIR) runtime/corebindings.c -c -o $$@ | ||
|
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| build-native: $(BUILDS_BIN_DIR)/$(1)/dotnet.js | ||
|
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| build-interp-$(1): $(BUILDS_BIN_DIR)/$(1)/dotnet.js | ||
|
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| endef | ||
|
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| $(eval $(call InterpBuildTemplate,debug,,$(EMCC_DEBUG_FLAGS),$(MONO_LIBS))) | ||
| $(eval $(call InterpBuildTemplate,release,,$(EMCC_RELEASE_FLAGS),$(MONO_LIBS))) | ||
|
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| build: | ||
| EMSDK_PATH=$(PWD)/wasm/emsdk ../../../.dotnet/dotnet build /p:TargetArchitecture=wasm /p:TargetOS=Browser /p:Configuration=Release | ||
|
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| clean-emsdk: | ||
| $(RM) -rf $(EMSDK_LOCAL_PATH) | ||
|
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| clean: | ||
| $(RM) -rf $(BUILDS_BIN_DIR) $(BUILDS_OBJ_DIR) | ||
| $(RM) emsdk_env.sh |
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