build: Allow ICF on architectures other than x86 and x64.

build/config/compiler/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.
 
 import("//build/config/android/config.gni")
 import("//build/config/chrome_build.gni")
 import("//build/config/chromecast_build.gni")
 import("//build/config/compiler/compiler.gni")
 import("//build/toolchain/cc_wrapper.gni")
 import("//build/toolchain/toolchain.gni")
@@ skipping 382 matching lines @@
     ldflags += [ "-fuse-ld=bfd" ]
   }
 
   if (is_posix && (use_gold || (use_lld && !is_nacl)) && !using_sanitizer &&
       !(is_android && use_order_profiling)) {
     # TODO(thakis): Remove `!is_android` below once NDK gold has been rolled
     # with the fix for https://sourceware.org/bugzilla/show_bug.cgi?id=17704
     # merged.  See also https://crbug.com/663886
     # `linux_use_bundled_binutils` is to avoid breaking Linux distros which may
     # still have a buggy gold.
-    if (!is_android && linux_use_bundled_binutils) {
+    # The bug only affects x86 and x64, so we can still use ICF when targeting
+    # other architectures.
+    if ((!is_android && linux_use_bundled_binutils) ||
+        !(current_cpu == "x86" || current_cpu == "x64")) {
       ldflags += [ "-Wl,--icf=all" ]
     }
   }
 
   if (linux_use_bundled_binutils) {
     cflags += [ "-B$binutils_path" ]
   }
 
   # Clang-specific compiler flags setup.
   # ------------------------------------
@@ skipping 1329 matching lines @@
 
 if (is_ios || is_mac) {
   # On Mac and iOS, this enables support for ARC (automatic ref-counting).
   # See http://clang.llvm.org/docs/AutomaticReferenceCounting.html.
   config("enable_arc") {
     common_flags = [ "-fobjc-arc" ]
     cflags_objc = common_flags
     cflags_objcc = common_flags
   }
 }