Initial new-style iOS/tvOS cross compiler (#47184)

* Allow no EMSDK for cross-compiler

* Don't try to include file not made during AOT on Browser

* Move BuildMonoCrossAOT from a bool to a Subset-esque string

* Generate wasm offsets

* Add new offset generation to non-official builds too. Oops

* Deal with default case when generating offsets only

* We override the OS, so can't switch on it

* We're being skipped again

* Grr

* Try another time. Merges passing in the night.

* Try and make the yaml consume both offsets

* Clean up last commit, which went surprisingly well

* Actually consume all offsets from parameter

* Yaml 🤷‍♂️

* It's not crossandroid any more, is it?

* Official version

* Fix typo

* Fix typo in typo

* Cleanups

* Variable rename suggestion from Alex

* More better variable names from Alex

* Initial new-style AOT for iOS. Need to disable Linux builds selectively though.

* Split Linux & Mac AOT

* fix error in official builds

Author: directhex

eng/pipelines/runtime-official.yml

@@ -133,6 +133,8 @@ stages:
       platforms:
       - Android_x64
       - Browser_wasm
+      - tvOS_x64
+      - iOS_x64
 
   #
   # Build Mono release AOT cross-compilers
@@ -143,7 +145,6 @@ stages:
       runtimeFlavor: mono
       buildConfig: release
       platforms:
-      - OSX_x64
       - Linux_x64
       jobParameters:
         buildArgs: -s mono+packs -c $(_BuildConfig)
@@ -161,6 +162,33 @@ stages:
         extraStepsParameters:
           name: MonoRuntimePacks
 
+  - template: /eng/pipelines/common/platform-matrix.yml
+    parameters:
+      jobTemplate: /eng/pipelines/common/global-build-job.yml
+      runtimeFlavor: mono
+      buildConfig: release
+      platforms:
+      - OSX_x64
+      jobParameters:
+        buildArgs: -s mono+packs -c $(_BuildConfig)
+                   /p:MonoCrossAOTTargetOS=Android+Browser+tvOS+iOS /p:SkipMonoCrossJitConfigure=true /p:BuildMonoAOTCrossCompilerOnly=true
+        nameSuffix: CrossAOT_Mono
+        runtimeVariant: crossaot
+        dependsOn:
+        - mono_android_offsets
+        - mono_browser_offsets
+        - mono_tvos_offsets
+        - mono_ios_offsets
+        monoCrossAOTTargetOS:
+        - Android
+        - Browser
+        - tvOS
+        - iOS
+        isOfficialBuild: ${{ variables.isOfficialBuild }}
+        extraStepsTemplate: /eng/pipelines/common/upload-intermediate-artifacts-step.yml
+        extraStepsParameters:
+          name: MonoRuntimePacks
+
   #
   # Build Mono LLVM runtime packs
   #

eng/pipelines/runtime.yml

@@ -193,6 +193,8 @@ jobs:
     platforms:
     - Android_x64
     - Browser_wasm
+    - tvOS_x64
+    - iOS_x64
     jobParameters:
       condition: >-
         or(
@@ -476,7 +478,7 @@ jobs:
           eq(variables['isFullMatrix'], true))
 
 #
-# Build Mono release Android AOT cross-compiler
+# Build Mono release AOT cross-compilers
 # Only when mono changed
 #
 - template: /eng/pipelines/common/platform-matrix.yml
@@ -485,7 +487,6 @@ jobs:
     runtimeFlavor: mono
     buildConfig: release
     platforms:
-    - OSX_x64
     - Linux_x64
     # - Linux_arm64
     # - Linux_musl_arm64
@@ -507,6 +508,31 @@ jobs:
           eq(dependencies.evaluate_paths.outputs['SetPathVars_installer.containsChange'], true),
           eq(variables['isFullMatrix'], true))
 
+- template: /eng/pipelines/common/platform-matrix.yml
+  parameters:
+    jobTemplate: /eng/pipelines/mono/templates/build-job.yml
+    runtimeFlavor: mono
+    buildConfig: release
+    platforms:
+    - OSX_x64
+    jobParameters:
+      runtimeVariant: crossaot
+      dependsOn:
+      - mono_android_offsets
+      - mono_browser_offsets
+      - mono_tvos_offsets
+      - mono_ios_offsets
+      monoCrossAOTTargetOS:
+      - Android
+      - Browser
+      - tvOS
+      - iOS
+      condition: >-
+        or(
+          eq(dependencies.evaluate_paths.outputs['SetPathVars_mono.containsChange'], true),
+          eq(dependencies.evaluate_paths.outputs['SetPathVars_installer.containsChange'], true),
+          eq(variables['isFullMatrix'], true))
+
 #
 # Build Mono release
 # Only when libraries or mono changed

src/installer/pkg/sfx/Microsoft.NETCore.App/monocrossaot.sfxproj

@@ -4,6 +4,8 @@
     <_MonoCrossAOTTargetOS Condition="'$(MonoCrossAOTTargetOS)' != ''">+$(MonoCrossAOTTargetOS.ToLowerInvariant())+</_MonoCrossAOTTargetOS>
     <MonoAotTargets Condition="$(_MonoCrossAOTTargetOS.contains('+android+'))">$(MonoAotTargets);android-x64;android-arm64;android-x86;android-arm</MonoAotTargets>
     <MonoAotTargets Condition="$(_MonoCrossAOTTargetOS.contains('+browser+'))">$(MonoAotTargets);browser-wasm</MonoAotTargets>
+    <MonoAotTargets Condition="$(_MonoCrossAOTTargetOS.contains('+tvos+'))">$(MonoAotTargets);tvos-x64;tvos-arm64</MonoAotTargets>
+    <MonoAotTargets Condition="$(_MonoCrossAOTTargetOS.contains('+ios+'))">$(MonoAotTargets);ios-x64;ios-arm64;ios-x86;ios-arm</MonoAotTargets>
   </PropertyGroup>
 
   <ItemGroup>

src/mono/monoaotcross.proj

@@ -9,8 +9,12 @@
     <_MonoGenerateOffsetsOSGroups Condition="'$(MonoGenerateOffsetsOSGroups)' != ''">+$(MonoGenerateOffsetsOSGroups.ToLowerInvariant())+</_MonoGenerateOffsetsOSGroups>
     <_MonoCrossAOTTargetOS Condition="$(_MonoGenerateOffsetsOSGroups.contains('+android+'))">$(_MonoCrossAOTTargetOS)+android+</_MonoCrossAOTTargetOS>
     <_MonoCrossAOTTargetOS Condition="$(_MonoGenerateOffsetsOSGroups.contains('+browser+'))">$(_MonoCrossAOTTargetOS)+browser+</_MonoCrossAOTTargetOS>
+    <_MonoCrossAOTTargetOS Condition="$(_MonoGenerateOffsetsOSGroups.contains('+tvos+'))">$(_MonoCrossAOTTargetOS)+tvos+</_MonoCrossAOTTargetOS>
+    <_MonoCrossAOTTargetOS Condition="$(_MonoGenerateOffsetsOSGroups.contains('+ios+'))">$(_MonoCrossAOTTargetOS)+ios+</_MonoCrossAOTTargetOS>
     <MonoAotTargets Condition="$(_MonoCrossAOTTargetOS.contains('+android+'))">$(MonoAotTargets);Android-x64;Android-arm64;Android-x86;Android-arm</MonoAotTargets>
     <MonoAotTargets Condition="$(_MonoCrossAOTTargetOS.contains('+browser+'))">$(MonoAotTargets);Browser-wasm</MonoAotTargets>
+    <MonoAotTargets Condition="$(_MonoCrossAOTTargetOS.contains('+tvos+'))">$(MonoAotTargets);tvOS-x64;tvOS-arm64</MonoAotTargets>
+    <MonoAotTargets Condition="$(_MonoCrossAOTTargetOS.contains('+ios+'))">$(MonoAotTargets);iOS-x64;iOS-arm64;iOS-x86;iOS-arm</MonoAotTargets>
   </PropertyGroup>
 
   <ItemGroup>