1 files changed, 102 insertions, 0 deletions
diff --git a/third_party/libwebrtc/build/toolchain/mac/BUILD.gn b/third_party/libwebrtc/build/toolchain/mac/BUILD.gn
new file mode 100644
index 0000000000..4809b4ba0a
--- /dev/null
+++ b/third_party/libwebrtc/build/toolchain/mac/BUILD.gn
@@ -0,0 +1,102 @@
+# Copyright 2021 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//build/config/mac/mac_sdk.gni")
+import("//build/toolchain/apple/toolchain.gni")
+
+# Specialisation of the apple_toolchain template to declare the toolchain
+# and its tools to build target for macOS platform.
+template("mac_toolchain") {
+  assert(defined(invoker.toolchain_args),
+         "Toolchains must declare toolchain_args")
+
+  apple_toolchain(target_name) {
+    forward_variables_from(invoker, "*", [ "toolchain_args" ])
+
+    bin_path = mac_bin_path
+
+    toolchain_args = {
+      forward_variables_from(invoker.toolchain_args, "*")
+      current_os = "mac"
+
+      if (target_os == "ios") {
+        # Use LLD for the host part of a chrome/ios build.
+        use_lld = true
+
+        # TODO(crbug.com/753445): the use_sanitizer_coverage arg is currently
+        # not supported by the Chromium mac_clang_x64 toolchain on iOS
+        # distribution.
+        use_sanitizer_coverage = false
+
+        # Do not use Xcode version of clang when building macOS tools for the
+        # host even if this is the version used to build for the iOS target.
+        use_xcode_clang = false
+      }
+    }
+  }
+}
+
+mac_toolchain("clang_arm") {
+  toolchain_args = {
+    target_cpu = "arm"
+  }
+}
+
+mac_toolchain("clang_arm64") {
+  toolchain_args = {
+    target_cpu = "arm64"
+  }
+}
+
+mac_toolchain("clang_x64") {
+  toolchain_args = {
+    target_cpu = "x64"
+  }
+}
+
+mac_toolchain("clang_x86") {
+  toolchain_args = {
+    target_cpu = "x86"
+  }
+}
+
+mac_toolchain("clang_x86_v8_arm") {
+  toolchain_args = {
+    target_cpu = "x86"
+
+    if (defined(v8_target_cpu)) {
+      v8_target_cpu = "arm"
+    }
+  }
+}
+
+mac_toolchain("clang_x86_v8_mipsel") {
+  toolchain_args = {
+    target_cpu = "x86"
+
+    if (defined(v8_target_cpu)) {
+      v8_target_cpu = "mipsel"
+    }
+  }
+}
+
+mac_toolchain("clang_x64_v8_arm64") {
+  toolchain_args = {
+    target_cpu = "x64"
+
+    if (defined(v8_target_cpu)) {
+      v8_target_cpu = "arm64"
+    }
+  }
+}
+
+mac_toolchain("clang_x64_v8_mips64el") {
+  toolchain_args = {
+    target_cpu = "x64"
+
+    if (defined(v8_target_cpu)) {
+      v8_target_cpu = "mips64el"
+    }
+  }
+}