Rollforward #2 of: Basic open-source crosstool to support targeting a…

…pple platform types.

RELNOTES: None.
PiperOrigin-RevId: 154993630

src/test/shell/bazel/apple/bazel_apple_test.sh

@@ -212,7 +212,7 @@ EOF
   bazel build --verbose_failures --objccopt=-DCOPTS_FOO=1 -s \
       --xcode_version=$XCODE_VERSION \
       //ios:swift_lib >$TEST_log 2>&1 || fail "should build"
-  expect_log "-module-cache-path bazel-out/local-fastbuild/genfiles/_objc_module_cache"
+  expect_log "-module-cache-path bazel-out/darwin_x86_64-fastbuild/genfiles/_objc_module_cache"
 }
 
 function test_swift_import_objc_framework() {
@@ -766,8 +766,8 @@ EOF
 
   bazel build --verbose_failures --xcode_version=$XCODE_VERSION -s \
       //ios:bin >$TEST_log 2>&1 || fail "should build"
-  expect_log "-Xlinker -add_ast_path -Xlinker bazel-out/local-fastbuild/genfiles/ios/dep/_objs/ios_dep.swiftmodule"
-  expect_log "-Xlinker -add_ast_path -Xlinker bazel-out/local-fastbuild/genfiles/ios/swift_lib/_objs/ios_swift_lib.swiftmodule"
+  expect_log "-Xlinker -add_ast_path -Xlinker bazel-out/darwin_x86_64-fastbuild/genfiles/ios/dep/_objs/ios_dep.swiftmodule"
+  expect_log "-Xlinker -add_ast_path -Xlinker bazel-out/darwin_x86_64-fastbuild/genfiles/ios/swift_lib/_objs/ios_swift_lib.swiftmodule"
 }
 
 function test_swiftc_script_mode() {
@@ -914,4 +914,134 @@ EOF
       || fail "should contain DWARF data"
 }
 
+function test_apple_binary_crosstool_ios() {
+  rm -rf package
+  mkdir -p package
+  cat > package/BUILD <<EOF
+objc_library(
+    name = "lib_a",
+    srcs = ["a.m"],
+)
+objc_library(
+    name = "lib_b",
+    srcs = ["b.m"],
+    deps = [":cc_lib"],
+)
+cc_library(
+    name = "cc_lib",
+    srcs = ["cc_lib.cc"],
+)
+apple_binary(
+    name = "main_binary",
+    deps = [":lib_a", ":lib_b"],
+    srcs = ["main.m"],
+)
+genrule(
+  name = "lipo_run",
+  srcs = [":main_binary_lipobin"],
+  outs = ["lipo_out"],
+  cmd =
+      "set -e && " +
+      "lipo -info \$(location :main_binary_lipobin) > \$(@)",
+  tags = ["requires-darwin"],
+)
+EOF
+  touch package/a.m
+  touch package/b.m
+  cat > package/main.m <<EOF
+int main() {
+  return 0;
+}
+EOF
+  cat > package/cc_lib.cc << EOF
+#include <string>
+
+std::string GetString() { return "h3ll0"; }
+EOF
+
+  bazel build --verbose_failures //package:lipo_out \
+    --experimental_enable_objc_cc_deps \
+    --experimental_objc_crosstool=all \
+    --apple_crosstool_transition \
+    --ios_multi_cpus=i386,x86_64 \
+    --xcode_version=$XCODE_VERSION \
+    || fail "should build apple_binary and obtain info via lipo"
+
+  cat bazel-genfiles/package/lipo_out | grep "i386 x86_64" \
+    || fail "expected output binary to be for x86_64 architecture"
+}
+
+function test_apple_binary_crosstool_watchos() {
+  rm -rf package
+  mkdir -p package
+  cat > package/BUILD <<EOF
+genrule(
+  name = "lipo_run",
+  srcs = [":main_binary_lipobin"],
+  outs = ["lipo_out"],
+  cmd =
+      "set -e && " +
+      "lipo -info \$(location :main_binary_lipobin) > \$(@)",
+  tags = ["requires-darwin"],
+)
+
+apple_binary(
+    name = "main_binary",
+    srcs = ["main.m"],
+    deps = [":lib_a"],
+    platform_type = "watchos",
+)
+cc_library(
+    name = "cc_lib",
+    srcs = ["cc_lib.cc"],
+)
+# By depending on a library which requires it is built for watchos,
+# this test verifies that dependencies of apple_binary are compiled
+# for the specified platform_type.
+objc_library(
+    name = "lib_a",
+    srcs = ["a.m"],
+    deps = [":cc_lib"],
+)
+EOF
+  cat > package/main.m <<EOF
+#import <WatchKit/WatchKit.h>
+
+// Note that WKExtensionDelegate is only available in Watch SDK.
+@interface TestInterfaceMain : NSObject <WKExtensionDelegate>
+@end
+
+int main() {
+  return 0;
+}
+EOF
+  cat > package/a.m <<EOF
+#import <WatchKit/WatchKit.h>
+
+// Note that WKExtensionDelegate is only available in Watch SDK.
+@interface TestInterfaceA : NSObject <WKExtensionDelegate>
+@end
+
+int aFunction() {
+  return 0;
+}
+EOF
+  cat > package/cc_lib.cc << EOF
+#include <string>
+
+std::string GetString() { return "h3ll0"; }
+EOF
+
+  bazel build --verbose_failures //package:lipo_out \
+      --experimental_enable_objc_cc_deps \
+      --experimental_objc_crosstool=library \
+      --apple_crosstool_transition \
+      --watchos_cpus=armv7k \
+      --xcode_version=$XCODE_VERSION \
+      || fail "should build watch binary"
+
+  cat bazel-genfiles/package/lipo_out | grep "armv7k" \
+    || fail "expected output binary to be for armv7k architecture"
+}
+
 run_suite "apple_tests"

src/test/shell/bazel/external_correctness_test.sh

@@ -142,7 +142,7 @@ genrule(
 )
 EOF
   bazel build @a//b/c:echo-d &> $TEST_log || fail "Build failed"
-  assert_contains "bazel-out/local.*-fastbuild/genfiles/external/a/b/c" \
+  assert_contains "bazel-out/.*-fastbuild/genfiles/external/a/b/c" \
     "bazel-genfiles/external/a/b/c/d"
 }
 

src/test/shell/bazel/remote_execution_test.sh

@@ -53,6 +53,13 @@ function tear_down() {
 }
 
 function test_cc_binary() {
+  if [[ "$PLATFORM" == "darwin" ]]; then
+    # TODO(b/37355380): This test is disabled due to RemoteWorker not supporting
+    # setting SDKROOT and DEVELOPER_DIR appropriately, as is required of
+    # action executors in order to select the appropriate Xcode toolchain.
+    return 0
+  fi
+
   mkdir -p a
   cat > a/BUILD <<EOF
 package(default_visibility = ["//visibility:public"])