[Hot Reload] Parameterize DotNetWatchHotReload test and remove Mono STARTUP_HOOKS workaround - #11240
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…TARTUP_HOOKS workaround Parameterize the `DotNetWatchHotReload` device test for both MonoVM and CoreCLR runtimes instead of hardcoding MonoVM. Remove the `RuntimeHostConfigurationOption` workaround for `STARTUP_HOOKS` in `HotReload.targets` that was needed because Mono was not reading `DOTNET_STARTUP_HOOKS` from the environment. This was fixed upstream in dotnet/runtime: dotnet/runtime@c8e2a61 The fix is included in our pinned dotnet/dotnet at: dotnet/dotnet@ab01524 Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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Pull request overview
This PR updates Hot Reload support to align with recent upstream runtime behavior and broadens device integration coverage across runtimes.
Changes:
- Parameterizes the
DotNetWatchHotReloadMSBuild device integration test to run for bothAndroidRuntime.MonoVMandAndroidRuntime.CoreCLR. - Removes the Mono-specific
RuntimeHostConfigurationOption(STARTUP_HOOKS) workaround fromMicrosoft.Android.Sdk.HotReload.targets, relying on the runtime fix forDOTNET_STARTUP_HOOKS.
Reviewed changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.
| File | Description |
|---|---|
| tests/MSBuildDeviceIntegration/Tests/InstallAndRunTests.cs | Runs the Hot Reload dotnet watch device test for both MonoVM and CoreCLR. |
| src/Xamarin.Android.Build.Tasks/Microsoft.Android.Sdk/targets/Microsoft.Android.Sdk.HotReload.targets | Removes the legacy Mono STARTUP_HOOKS workaround now that the runtime reads DOTNET_STARTUP_HOOKS. |
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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The test passes. |
jonathanpeppers
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simonrozsival
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Apr 29, 2026
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Summary
Two related Hot Reload improvements:
Parameterize
DotNetWatchHotReloadtest for bothMonoVMandCoreCLRruntimes instead of hardcodingMonoVM.Remove the
RuntimeHostConfigurationOptionworkaround forSTARTUP_HOOKSinHotReload.targets. This workaround was needed because Mono was not readingDOTNET_STARTUP_HOOKSfrom the environment. The upstream fix is now included in our pinned dotnet/dotnet: