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[mono][ios] Drop marshal-ilgen from iOS builds if it is not needed #88903

Merged
merged 9 commits into from
Jul 24, 2023
Merged

[mono][ios] Drop marshal-ilgen from iOS builds if it is not needed #88903

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89b89d4
MarshallingPInvokeScanner is applied to Apple toolchains.
jandupej Jun 28, 2023
01ff43d
HelloiOS example uses simpler string marshaling.
jandupej Jun 28, 2023
8302d60
Merge branch 'main' into marshal-ilgen-ios
jandupej Jul 14, 2023
c37ef23
Removing marshal-ilgen from HelloWorld.
jandupej Jul 14, 2023
696a656
Runtime components and runtime library paths are now decided in the c…
jandupej Jul 14, 2023
88df373
RuntimeComponents is manipulated through an ItemGroup.
jandupej Jul 14, 2023
8fb47b8
Cleaned up commented old code.
jandupej Jul 17, 2023
6d8f939
Reordered runtime components section.
jandupej Jul 24, 2023
2dd6ac0
Addressed more feedback.
jandupej Jul 24, 2023
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2 changes: 2 additions & 0 deletions src/mono/msbuild/apple/build/AppleBuild.props
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Original file line number Diff line number Diff line change
Expand Up @@ -26,6 +26,8 @@
_InitializeCommonProperties;
_BeforeAppleBuild;
_AppleResolveReferences;
_ScanAssembliesDecideLightweightMarshaler;
$(_ProcessRuntimeComponentsForLibraryMode);
_AppleAotCompile;
_BuildNativeLibrary;
_AppleGenerateAppBundle;
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72 changes: 47 additions & 25 deletions src/mono/msbuild/apple/build/AppleBuild.targets
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Expand Up @@ -4,7 +4,7 @@
<AppleGenerateAppBundle Condition="'$(AppleGenerateAppBundle)' == ''">true</AppleGenerateAppBundle>
<!-- Unable to properly integrate nativelib into app build, so not supported for now. -->
<AppleGenerateAppBundle Condition="'$(_IsLibraryMode)' == 'true'">false</AppleGenerateAppBundle>

<_ProcessRuntimeComponentsForLibraryMode Condition="'$(_IsLibraryMode)' == 'true'">_ProcessRuntimeComponentsForLibraryMode</_ProcessRuntimeComponentsForLibraryMode>
<EnableDefaultAssembliesToBundle Condition="'$(EnableDefaultAssembliesToBundle)' == ''">false</EnableDefaultAssembliesToBundle>
</PropertyGroup>

Expand All @@ -14,6 +14,8 @@
<UsingTask Condition="'$(RunAOTCompilation)' == 'true'"
TaskName="ILStrip"
AssemblyFile="$(MonoTargetsTasksAssemblyPath)" />
<UsingTask TaskName="MonoTargetsTasks.MarshalingPInvokeScanner"
AssemblyFile="$(MonoTargetsTasksAssemblyPath)" />

<Target Name="_CleanPublish"
BeforeTargets="Build">
Expand Down Expand Up @@ -55,30 +57,6 @@
<ItemGroup>
<_CommonLinkerArgs Condition="'$(_IsLibraryMode)' == 'true' and '$(TargetOS)' != 'tvos' and '$(TargetOS)' != 'tvossimulator'" Include="-framework GSS" />
</ItemGroup>

<PropertyGroup>
<RuntimeComponents Condition="'$(RuntimeComponents)' == ''">marshal-ilgen</RuntimeComponents>
</PropertyGroup>

<ItemGroup Condition="'$(_IsLibraryMode)' == 'true'">
<!-- add all non stub libs first -->
<!-- if runtimecompoents is empty, exclude -static.a and include -stub-static.a instead -->
<!-- if runtimecomponents is *, we're ok because all -static.a is included -->
<!-- if runtimecomponents is a list, add to items and only pull in -static.a -->

<_UsedComponents
Condition="'$(RuntimeComponents)' != '' and '$(RuntimeComponents)' != '*'"
Include="$(RuntimeComponents)" />

<_RuntimeLibraries
Include="$(AppleBuildDir)\*-stub-static.a" />
<_RuntimeLibraries
Include="$(AppleBuildDir)\*.a"
Exclude="$(AppleBuildDir)\*-static.a" />

<_RuntimeLibraries Remove="$(AppleBuildDir)\libmono-component-%(_UsedComponents.Identity)-stub-static.a" />
<_RuntimeLibraries Include="$(AppleBuildDir)\libmono-component-%(_UsedComponents.Identity)-static.a" />
</ItemGroup>
</Target>

<Target Name="_BeforeAppleBuild">
Expand Down Expand Up @@ -110,6 +88,50 @@
</ItemGroup>
</Target>

<Target Name="_ScanAssembliesDecideLightweightMarshaler" DependsOnTargets="_AppleResolveReferences">
<PropertyGroup Condition="'$(RuntimeComponents)'=='*'">
<ForceAllComponents>true</ForceAllComponents>
</PropertyGroup>

<ItemGroup Condition="'$(ForceAllComponents)'!='true'">
<RuntimeComponentList Include="$(RuntimeComponents)" />
<AssembliesToScan Include="@(_AssembliesToBundleInternal)" />
</ItemGroup>

<MarshalingPInvokeScanner Assemblies ="@(AssembliesToScan)" Condition="'$(ForceAllComponents)'!='true'">
<Output TaskParameter="IncompatibleAssemblies" ItemName="MonoLightweightMarshallerIncompatibleAssemblies" />
</MarshalingPInvokeScanner>

<ItemGroup Condition="'@(MonoLightweightMarshallerIncompatibleAssemblies->Count())' > 0">
<RuntimeComponentList Include="marshal-ilgen" KeepDuplicates="false"/>
</ItemGroup>
<ItemGroup Condition="'@(MonoLightweightMarshallerIncompatibleAssemblies->Count())' == 0">
<RuntimeComponentList Remove="marshal-ilgen" />
</ItemGroup>

<PropertyGroup Condition="'$(ForceAllComponents)'!='true'">
<RuntimeComponents>@(RuntimeComponentList)</RuntimeComponents>
</PropertyGroup>
</Target>

<Target Name="_ProcessRuntimeComponentsForLibraryMode" DependsOnTargets="_ScanAssembliesDecideLightweightMarshaler" BeforeTargets="_BuildNativeLibrary">
<ItemGroup>
<!-- add all non stub libs first -->
<!-- if runtimecompoents is empty, exclude -static.a and include -stub-static.a instead -->
<!-- if runtimecomponents is *, we're ok because all -static.a is included -->
<!-- if runtimecomponents is a list, add to items and only pull in -static.a -->

<_UsedComponents
Condition="'$(RuntimeComponents)' != '' and '$(RuntimeComponents)' != '*'"
Include="$(RuntimeComponents)" />

<_RuntimeLibraries Include="$(AppleBuildDir)\*.a" Exclude="$(AppleBuildDir)\libmono-component-*.a" />
<_RuntimeLibraries Include="$(AppleBuildDir)\libmono-component-*-stub-static.a" />
<_RuntimeLibraries Remove="$(AppleBuildDir)\libmono-component-%(_UsedComponents.Identity)-stub-static.a" />
<_RuntimeLibraries Include="$(AppleBuildDir)\libmono-component-%(_UsedComponents.Identity)-static.a" />
</ItemGroup>
</Target>

<Target Name="_AppleAotCompile"
Condition="'$(RunAOTCompilation)' == 'true'">

Expand Down
20 changes: 17 additions & 3 deletions src/mono/sample/iOS/Program.cs
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Expand Up @@ -2,6 +2,7 @@
// The .NET Foundation licenses this file to you under the MIT license.

using System;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Runtime.InteropServices;
Expand All @@ -10,18 +11,31 @@ public static class Program
{
// Defined in main.m
[DllImport("__Internal")]
private static extern void ios_set_text(string value);
unsafe private static extern void ios_set_text(byte* value);

[DllImport("__Internal")]
unsafe private static extern void ios_register_button_click(delegate* unmanaged<void> callback);

private static int counter = 0;

private static void SetText(string txt)
{
byte[] ascii = ASCIIEncoding.ASCII.GetBytes(txt);

unsafe
{
fixed (byte* asciiPtr = ascii)
{
ios_set_text(asciiPtr);
}
}
}

// Called by native code, see main.m
[UnmanagedCallersOnly]
private static void OnButtonClick()
{
ios_set_text("OnButtonClick! #" + counter++);
SetText("OnButtonClick! #" + counter++);
}

#if CI_TEST
Expand All @@ -39,7 +53,7 @@ public static async Task Main(string[] args)
for (int i = 0; i < msg.Length; i++)
{
// a kind of an animation
ios_set_text(msg.Substring(0, i + 1));
SetText(msg.Substring(0, i + 1));
await Task.Delay(100);
}

Expand Down
6 changes: 3 additions & 3 deletions src/mono/sample/iOS/Program.csproj
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Original file line number Diff line number Diff line change
Expand Up @@ -31,9 +31,9 @@

<Target Name="BuildAppBundle" AfterTargets="$(BuildAppBundleAfterTargets)" DependsOnTargets="$(BuildAppBundleDependsOnTargets)"/>
<Target Name="_SetAppleGenerateAppBundleProps" Condition="'$(TargetOS)' != 'ios' and '$(ArchiveTests)' != 'true'" BeforeTargets="_AppleGenerateAppBundle">
<PropertyGroup>
<RuntimeComponents>diagnostics_tracing;marshal-ilgen</RuntimeComponents>
</PropertyGroup>
<ItemGroup>
<RuntimeComponents Include="diagnostics_tracing" />
</ItemGroup>
</Target>

<Target Name="RunAppBundle"
Expand Down
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