Imported Upstream version 5.10.0.69

Former-commit-id: fc39669a0b707dd3c063977486506b6793da2890

external/corert/buildscripts/hostvars-setup.sh

@@ -0,0 +1,33 @@
+#!/usr/bin/env bash
+
+# Use uname to determine what the CPU is.
+export CPUName=$(uname -p)
+# Some Linux platforms report unknown for platform, but the arch for machine.
+if [ $CPUName == "unknown" ]; then
+    export CPUName=$(uname -m)
+fi
+
+case $CPUName in
+    i686)
+        export __HostArch=x86
+        ;;
+
+    x86_64)
+        export __HostArch=x64
+        ;;
+
+    armv7l)
+        echo "Unsupported CPU $CPUName detected, build might not succeed!"
+        export __HostArch=arm
+        ;;
+
+    aarch64)
+        echo "Unsupported CPU $CPUName detected, build might not succeed!"
+        export __HostArch=arm64
+        ;;
+
+    *)
+        echo "Unknown CPU $CPUName detected, configuring as if for x64"
+        export __HostArch=x64
+        ;;
+esac