[NativeAOT] Build support for linux-bionic-arm / linux-musl-arm (dotnet#97996)

Author: filipnavara

src/coreclr/nativeaot/BuildIntegration/Microsoft.NETCore.Native.Unix.targets

@@ -39,15 +39,17 @@ The .NET Foundation licenses this file to you under the MIT license.
       <CrossCompileArch Condition="$(CrossCompileRid.EndsWith('-x64'))">x86_64</CrossCompileArch>
       <CrossCompileArch Condition="$(CrossCompileRid.EndsWith('-arm64')) and '$(_IsApplePlatform)' != 'true'">aarch64</CrossCompileArch>
       <CrossCompileArch Condition="$(CrossCompileRid.EndsWith('-arm64')) and '$(_IsApplePlatform)' == 'true'">arm64</CrossCompileArch>
-      <CrossCompileArch Condition="$(CrossCompileRid.EndsWith('-arm'))">arm</CrossCompileArch>
+      <CrossCompileArch Condition="$(CrossCompileRid.EndsWith('-arm'))">armv7</CrossCompileArch>
 
       <CrossCompileAbi>gnu</CrossCompileAbi>
-      <CrossCompileAbi Condition="$(CrossCompileRid.EndsWith('-arm'))">gnueabihf</CrossCompileAbi>
+      <CrossCompileAbi Condition="$(CrossCompileRid.StartsWith('linux-bionic-'))">android21</CrossCompileAbi>
+      <CrossCompileAbi Condition="$(CrossCompileRid.StartsWith('linux-musl-')) or $(CrossCompileRid.StartsWith('alpine-'))">musl</CrossCompileAbi>
+      <CrossCompileAbi Condition="'$(CrossCompileRid)' == 'linux-arm'">gnueabihf</CrossCompileAbi>
+      <CrossCompileAbi Condition="'$(CrossCompileRid)' == 'linux-bionic-arm'">androideabi21</CrossCompileAbi>
+      <CrossCompileAbi Condition="'$(CrossCompileRid)' == 'linux-musl-arm'">musleabihf</CrossCompileAbi>
 
       <TargetTriple />
       <TargetTriple Condition="'$(CrossCompileArch)' != ''">$(CrossCompileArch)-linux-$(CrossCompileAbi)</TargetTriple>
-      <TargetTriple Condition="'$(CrossCompileArch)' != '' and ($(CrossCompileRid.StartsWith('linux-musl')) or $(CrossCompileRid.StartsWith('alpine')))">$(CrossCompileArch)-alpine-linux-musl</TargetTriple>
-      <TargetTriple Condition="'$(CrossCompileArch)' != '' and $(CrossCompileRid.StartsWith('linux-bionic'))">$(CrossCompileArch)-linux-android21</TargetTriple>
       <TargetTriple Condition="'$(CrossCompileArch)' != '' and ($(CrossCompileRid.StartsWith('freebsd')))">$(CrossCompileArch)-unknown-freebsd12</TargetTriple>
 
       <IlcRPath Condition="'$(IlcRPath)' == '' and '$(_IsApplePlatform)' != 'true'">$ORIGIN</IlcRPath>

src/coreclr/nativeaot/Runtime/unix/unixasmmacrosarm.inc

@@ -276,8 +276,12 @@ C_FUNC(\Name):
 .endm
 
 .macro INLINE_GETTHREAD
+#ifdef FEATURE_EMULATED_TLS
+        bl C_FUNC(RhpGetThread)
+#else
         // Inlined version of call C_FUNC(RhpGetThread)
         INLINE_GET_TLS_VAR tls_CurrentThread
+#endif
 .endm
 
 .macro INLINE_THREAD_UNHIJACK threadReg, trashReg1, trashReg2