Add compile_multilib properties to all native prebuilts (reland).

There was a special case in cc_prebuilt_binary only, which resulted in
prebuilt libraries getting both 32 and 64 bit variants even when their
sources only had one of them, and the other variant would be defunct
since it wouldn't get any prebuilt artefact.

This moves the handling of compile_multilib completely to the common
update code, so that SDK members don't need to deal with it. It doesn't
take SDK member defaults into account, which means a bit more
boilerplate in the snapshots, but it's simpler and less error prone
(different SDK member types have different defaults).

This relands https://r.android.com/1359962 after disabling the SDK
tests on mac once and for all.

Bug: 151303681
Test: `go test -v ./sdk` in build/soong on mac and linux
Change-Id: I05f6603b2ac9b8676b25c3e297165ca23284e9cc
diff --git a/sdk/cc_sdk_test.go b/sdk/cc_sdk_test.go
index 935d348..497f14b 100644
--- a/sdk/cc_sdk_test.go
+++ b/sdk/cc_sdk_test.go
@@ -73,12 +73,16 @@
 	result := testSdkWithCc(t, `
 		sdk {
 			name: "mysdk",
+			device_supported: false,
+			host_supported: true,
 			native_shared_libs: ["sdkmember"],
 			compile_multilib: "64",
 		}
 
 		cc_library_shared {
 			name: "sdkmember",
+			device_supported: false,
+			host_supported: true,
 			srcs: ["Test.cpp"],
 			stl: "none",
 			compile_multilib: "64",
@@ -86,8 +90,52 @@
 	`)
 
 	result.CheckSnapshot("mysdk", "",
+		checkAndroidBpContents(`
+// This is auto-generated. DO NOT EDIT.
+
+cc_prebuilt_library_shared {
+    name: "mysdk_sdkmember@current",
+    sdk_member_name: "sdkmember",
+    device_supported: false,
+    host_supported: true,
+    installable: false,
+    stl: "none",
+    compile_multilib: "64",
+    arch: {
+        x86_64: {
+            srcs: ["x86_64/lib/sdkmember.so"],
+        },
+    },
+}
+
+cc_prebuilt_library_shared {
+    name: "sdkmember",
+    prefer: false,
+    device_supported: false,
+    host_supported: true,
+    stl: "none",
+    compile_multilib: "64",
+    arch: {
+        x86_64: {
+            srcs: ["x86_64/lib/sdkmember.so"],
+        },
+    },
+}
+
+sdk_snapshot {
+    name: "mysdk@current",
+    device_supported: false,
+    host_supported: true,
+    native_shared_libs: ["mysdk_sdkmember@current"],
+    target: {
+        linux_glibc: {
+            compile_multilib: "64",
+        },
+    },
+}
+`),
 		checkAllCopyRules(`
-.intermediates/sdkmember/android_arm64_armv8-a_shared/sdkmember.so -> arm64/lib/sdkmember.so
+.intermediates/sdkmember/linux_glibc_x86_64_shared/sdkmember.so -> x86_64/lib/sdkmember.so
 `))
 }
 
@@ -271,6 +319,7 @@
     name: "mysdk_crtobj@current",
     sdk_member_name: "crtobj",
     stl: "none",
+    compile_multilib: "both",
     arch: {
         arm64: {
             srcs: ["arm64/lib/crtobj.o"],
@@ -285,6 +334,7 @@
     name: "crtobj",
     prefer: false,
     stl: "none",
+    compile_multilib: "both",
     arch: {
         arm64: {
             srcs: ["arm64/lib/crtobj.o"],
@@ -378,6 +428,7 @@
     sdk_member_name: "mynativelib",
     installable: false,
     stl: "none",
+    compile_multilib: "both",
     export_include_dirs: ["include/include"],
     arch: {
         arm64: {
@@ -394,6 +445,7 @@
     name: "mynativelib",
     prefer: false,
     stl: "none",
+    compile_multilib: "both",
     export_include_dirs: ["include/include"],
     arch: {
         arm64: {
@@ -621,9 +673,9 @@
     host_supported: true,
     installable: false,
     stl: "none",
+    compile_multilib: "both",
     static_executable: true,
     nocrt: true,
-    compile_multilib: "both",
     arch: {
         x86_64: {
             srcs: ["x86_64/bin/linker"],
@@ -640,9 +692,9 @@
     device_supported: false,
     host_supported: true,
     stl: "none",
+    compile_multilib: "both",
     static_executable: true,
     nocrt: true,
-    compile_multilib: "both",
     arch: {
         x86_64: {
             srcs: ["x86_64/bin/linker"],
@@ -702,6 +754,7 @@
     ],
     installable: false,
     stl: "none",
+    compile_multilib: "both",
     export_include_dirs: ["include/include"],
     arch: {
         arm64: {
@@ -723,6 +776,7 @@
         "apex2",
     ],
     stl: "none",
+    compile_multilib: "both",
     export_include_dirs: ["include/include"],
     arch: {
         arm64: {
@@ -824,6 +878,7 @@
     sdk_member_name: "mynativelib",
     installable: false,
     stl: "none",
+    compile_multilib: "both",
     shared_libs: [
         "mysdk_myothernativelib@current",
         "libc",
@@ -842,6 +897,7 @@
     name: "mynativelib",
     prefer: false,
     stl: "none",
+    compile_multilib: "both",
     shared_libs: [
         "myothernativelib",
         "libc",
@@ -861,6 +917,7 @@
     sdk_member_name: "myothernativelib",
     installable: false,
     stl: "none",
+    compile_multilib: "both",
     system_shared_libs: ["libm"],
     arch: {
         arm64: {
@@ -876,6 +933,7 @@
     name: "myothernativelib",
     prefer: false,
     stl: "none",
+    compile_multilib: "both",
     system_shared_libs: ["libm"],
     arch: {
         arm64: {
@@ -892,6 +950,7 @@
     sdk_member_name: "mysystemnativelib",
     installable: false,
     stl: "none",
+    compile_multilib: "both",
     arch: {
         arm64: {
             srcs: ["arm64/lib/mysystemnativelib.so"],
@@ -906,6 +965,7 @@
     name: "mysystemnativelib",
     prefer: false,
     stl: "none",
+    compile_multilib: "both",
     arch: {
         arm64: {
             srcs: ["arm64/lib/mysystemnativelib.so"],
@@ -974,6 +1034,7 @@
     installable: false,
     sdk_version: "minimum",
     stl: "none",
+    compile_multilib: "both",
     export_include_dirs: ["include/include"],
     arch: {
         x86_64: {
@@ -994,6 +1055,7 @@
     host_supported: true,
     sdk_version: "minimum",
     stl: "none",
+    compile_multilib: "both",
     export_include_dirs: ["include/include"],
     arch: {
         x86_64: {
@@ -1070,12 +1132,18 @@
     installable: false,
     stl: "none",
     target: {
+        linux_glibc: {
+            compile_multilib: "both",
+        },
         linux_glibc_x86_64: {
             srcs: ["linux_glibc/x86_64/lib/mynativelib.so"],
         },
         linux_glibc_x86: {
             srcs: ["linux_glibc/x86/lib/mynativelib.so"],
         },
+        windows: {
+            compile_multilib: "64",
+        },
         windows_x86_64: {
             srcs: ["windows/x86_64/lib/mynativelib.dll"],
         },
@@ -1089,12 +1157,18 @@
     host_supported: true,
     stl: "none",
     target: {
+        linux_glibc: {
+            compile_multilib: "both",
+        },
         linux_glibc_x86_64: {
             srcs: ["linux_glibc/x86_64/lib/mynativelib.so"],
         },
         linux_glibc_x86: {
             srcs: ["linux_glibc/x86/lib/mynativelib.so"],
         },
+        windows: {
+            compile_multilib: "64",
+        },
         windows_x86_64: {
             srcs: ["windows/x86_64/lib/mynativelib.dll"],
         },
@@ -1151,6 +1225,7 @@
     sdk_member_name: "mynativelib",
     installable: false,
     stl: "none",
+    compile_multilib: "both",
     export_include_dirs: ["include/include"],
     arch: {
         arm64: {
@@ -1168,6 +1243,7 @@
     name: "mynativelib",
     prefer: false,
     stl: "none",
+    compile_multilib: "both",
     export_include_dirs: ["include/include"],
     arch: {
         arm64: {
@@ -1236,6 +1312,7 @@
     host_supported: true,
     installable: false,
     stl: "none",
+    compile_multilib: "both",
     export_include_dirs: ["include/include"],
     arch: {
         x86_64: {
@@ -1255,6 +1332,7 @@
     device_supported: false,
     host_supported: true,
     stl: "none",
+    compile_multilib: "both",
     export_include_dirs: ["include/include"],
     arch: {
         x86_64: {
@@ -1315,6 +1393,7 @@
     sdk_member_name: "mynativelib",
     installable: false,
     stl: "none",
+    compile_multilib: "both",
     export_include_dirs: ["include/include"],
     arch: {
         arm64: {
@@ -1340,6 +1419,7 @@
     name: "mynativelib",
     prefer: false,
     stl: "none",
+    compile_multilib: "both",
     export_include_dirs: ["include/include"],
     arch: {
         arm64: {
@@ -1416,6 +1496,7 @@
     host_supported: true,
     installable: false,
     stl: "none",
+    compile_multilib: "64",
     export_include_dirs: ["include/include"],
     arch: {
         x86_64: {
@@ -1431,6 +1512,7 @@
     device_supported: false,
     host_supported: true,
     stl: "none",
+    compile_multilib: "64",
     export_include_dirs: ["include/include"],
     arch: {
         x86_64: {
@@ -1483,6 +1565,7 @@
     name: "mysdk_mynativeheaders@current",
     sdk_member_name: "mynativeheaders",
     stl: "none",
+    compile_multilib: "both",
     export_include_dirs: ["include/include"],
 }
 
@@ -1490,6 +1573,7 @@
     name: "mynativeheaders",
     prefer: false,
     stl: "none",
+    compile_multilib: "both",
     export_include_dirs: ["include/include"],
 }
 
@@ -1532,6 +1616,7 @@
     device_supported: false,
     host_supported: true,
     stl: "none",
+    compile_multilib: "both",
     export_include_dirs: ["include/include"],
 }
 
@@ -1541,6 +1626,7 @@
     device_supported: false,
     host_supported: true,
     stl: "none",
+    compile_multilib: "both",
     export_include_dirs: ["include/include"],
 }
 
@@ -1590,6 +1676,7 @@
     sdk_member_name: "mynativeheaders",
     host_supported: true,
     stl: "none",
+    compile_multilib: "both",
     export_system_include_dirs: ["common_os/include/include"],
     target: {
         android: {
@@ -1606,6 +1693,7 @@
     prefer: false,
     host_supported: true,
     stl: "none",
+    compile_multilib: "both",
     export_system_include_dirs: ["common_os/include/include"],
     target: {
         android: {
@@ -1662,6 +1750,7 @@
     name: "mysdk_sslnil@current",
     sdk_member_name: "sslnil",
     installable: false,
+    compile_multilib: "both",
     arch: {
         arm64: {
             srcs: ["arm64/lib/sslnil.so"],
@@ -1675,6 +1764,7 @@
 cc_prebuilt_library_shared {
     name: "sslnil",
     prefer: false,
+    compile_multilib: "both",
     arch: {
         arm64: {
             srcs: ["arm64/lib/sslnil.so"],
@@ -1689,6 +1779,7 @@
     name: "mysdk_sslempty@current",
     sdk_member_name: "sslempty",
     installable: false,
+    compile_multilib: "both",
     system_shared_libs: [],
     arch: {
         arm64: {
@@ -1703,6 +1794,7 @@
 cc_prebuilt_library_shared {
     name: "sslempty",
     prefer: false,
+    compile_multilib: "both",
     system_shared_libs: [],
     arch: {
         arm64: {
@@ -1718,6 +1810,7 @@
     name: "mysdk_sslnonempty@current",
     sdk_member_name: "sslnonempty",
     installable: false,
+    compile_multilib: "both",
     system_shared_libs: ["mysdk_sslnil@current"],
     arch: {
         arm64: {
@@ -1732,6 +1825,7 @@
 cc_prebuilt_library_shared {
     name: "sslnonempty",
     prefer: false,
+    compile_multilib: "both",
     system_shared_libs: ["sslnil"],
     arch: {
         arm64: {
@@ -1780,6 +1874,7 @@
     sdk_member_name: "sslvariants",
     host_supported: true,
     installable: false,
+    compile_multilib: "both",
     target: {
         android: {
             system_shared_libs: [],
@@ -1803,6 +1898,7 @@
     name: "sslvariants",
     prefer: false,
     host_supported: true,
+    compile_multilib: "both",
     target: {
         android: {
             system_shared_libs: [],
@@ -1859,6 +1955,7 @@
     name: "mysdk_stubslib@current",
     sdk_member_name: "stubslib",
     installable: false,
+    compile_multilib: "both",
     stubs: {
         versions: ["3"],
     },
@@ -1875,6 +1972,7 @@
 cc_prebuilt_library_shared {
     name: "stubslib",
     prefer: false,
+    compile_multilib: "both",
     stubs: {
         versions: ["3"],
     },
@@ -1928,6 +2026,7 @@
     sdk_member_name: "stubslib",
     host_supported: true,
     installable: false,
+    compile_multilib: "both",
     stubs: {
         versions: ["3"],
     },
@@ -1951,6 +2050,7 @@
     name: "stubslib",
     prefer: false,
     host_supported: true,
+    compile_multilib: "both",
     stubs: {
         versions: ["3"],
     },
@@ -2003,6 +2103,7 @@
     host_supported: true,
     installable: false,
     unique_host_soname: true,
+    compile_multilib: "both",
     target: {
         android_arm64: {
             srcs: ["android/arm64/lib/mylib.so"],
@@ -2024,6 +2125,7 @@
     prefer: false,
     host_supported: true,
     unique_host_soname: true,
+    compile_multilib: "both",
     target: {
         android_arm64: {
             srcs: ["android/arm64/lib/mylib.so"],
diff --git a/sdk/update.go b/sdk/update.go
index cf25008..b8d73c6 100644
--- a/sdk/update.go
+++ b/sdk/update.go
@@ -794,6 +794,17 @@
 	return !ok
 }
 
+// Add the properties from the given SdkMemberProperties to the blueprint
+// property set. This handles common properties in SdkMemberPropertiesBase and
+// calls the member-specific AddToPropertySet for the rest.
+func addSdkMemberPropertiesToSet(ctx *memberContext, memberProperties android.SdkMemberProperties, targetPropertySet android.BpPropertySet) {
+	if memberProperties.Base().Compile_multilib != "" {
+		targetPropertySet.AddProperty("compile_multilib", memberProperties.Base().Compile_multilib)
+	}
+
+	memberProperties.AddToPropertySet(ctx, targetPropertySet)
+}
+
 type sdkMemberRef struct {
 	memberType android.SdkMemberType
 	variant    android.SdkAware
@@ -1009,7 +1020,7 @@
 	}
 
 	// Add the os specific but arch independent properties to the module.
-	osInfo.Properties.AddToPropertySet(ctx, osPropertySet)
+	addSdkMemberPropertiesToSet(ctx, osInfo.Properties, osPropertySet)
 
 	// Add arch (and possibly os) specific sections for each set of arch (and possibly
 	// os) specific properties.
@@ -1111,11 +1122,11 @@
 func (archInfo *archTypeSpecificInfo) addToPropertySet(ctx *memberContext, archPropertySet android.BpPropertySet, archOsPrefix string) {
 	archTypeName := archInfo.archType.Name
 	archTypePropertySet := archPropertySet.AddPropertySet(archOsPrefix + archTypeName)
-	archInfo.Properties.AddToPropertySet(ctx, archTypePropertySet)
+	addSdkMemberPropertiesToSet(ctx, archInfo.Properties, archTypePropertySet)
 
 	for _, linkInfo := range archInfo.linkInfos {
 		linkPropertySet := archTypePropertySet.AddPropertySet(linkInfo.linkType)
-		linkInfo.Properties.AddToPropertySet(ctx, linkPropertySet)
+		addSdkMemberPropertiesToSet(ctx, linkInfo.Properties, linkPropertySet)
 	}
 }
 
@@ -1221,7 +1232,7 @@
 	extractCommonProperties(ctx.sdkMemberContext, commonValueExtractor, commonProperties, osSpecificPropertiesContainers)
 
 	// Add the common properties to the module.
-	commonProperties.AddToPropertySet(ctx, bpModule)
+	addSdkMemberPropertiesToSet(ctx, commonProperties, bpModule)
 
 	// Create a target property set into which target specific properties can be
 	// added.