Mac toolchain: take output_dir into account for .dSYM

build/toolchain/mac/BUILD.gn

 # Copyright (c) 2013 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.
 
 # TODO(brettw) Use "gcc_toolchain.gni" like the Linux toolchains. This requires
 # some enhancements since the commands on Mac are slightly different than on
 # Linux.
 
 import("../goma.gni")
 import("//build/config/clang/clang.gni")
@@ skipping 119 matching lines @@
     lib_switch = "-l"
     lib_dir_switch = "-L"
 
     # Object files go in this directory. Use label_name instead of
     # target_output_name since labels will generally have no spaces and will be
     # unique in the directory.
     object_subdir = "{{target_out_dir}}/{{label_name}}"
 
     # If dSYMs are enabled, this flag will be added to the link tools.
     if (_enable_dsyms) {
-      dsym_switch = " -Wcrl,dsym,{{root_out_dir}} "
+      dsym_switch = " -Wcrl,dsym,{{output_dir}} "
       dsym_output_dir =
-          "{{root_out_dir}}/{{target_output_name}}{{output_extension}}.dSYM"
+          "{{output_dir}}/{{target_output_name}}{{output_extension}}.dSYM"
       dsym_output = [
         "$dsym_output_dir/",
         "$dsym_output_dir/Contents/Info.plist",
         "$dsym_output_dir/Contents/Resources/DWARF/" +
             "{{target_output_name}}{{output_extension}}",
       ]
     } else {
       dsym_switch = ""
     }
 
     if (_save_unstripped_output) {
-      _unstripped_output = "{{root_out_dir}}/{{target_output_name}}{{output_extension}}.unstripped"
+      _unstripped_output =
+          "{{output_dir}}/{{target_output_name}}{{output_extension}}.unstripped"
     }
 
     tool("cc") {
       depfile = "{{output}}.d"
       precompiled_header_type = "gcc"
       command = "$cc -MMD -MF $depfile {{defines}} {{include_dirs}} {{cflags}} {{cflags_c}} -c {{source}} -o {{output}}"
       depsformat = "gcc"
       description = "CC {{output}}"
       outputs = [
         "$object_subdir/{{source_name_part}}.o",
@@ skipping 282 matching lines @@
     }
   }
 
   mac_toolchain("ios_clang_x64") {
     toolchain_args = {
       current_cpu = "x64"
       current_os = "ios"
     }
   }
 }