| Index: build/config/sanitizers/BUILD.gn | 
| diff --git a/build/config/sanitizers/BUILD.gn b/build/config/sanitizers/BUILD.gn | 
| index 73bafa9891c858cab0a14a595a32cf9ebf99784a..9dc878efe018e361ccd9445ce725550ba6f247fd 100644 | 
| --- a/build/config/sanitizers/BUILD.gn | 
| +++ b/build/config/sanitizers/BUILD.gn | 
| @@ -109,7 +109,7 @@ if ((is_mac || is_win) && using_sanitizer) { | 
| } | 
|  | 
| config("sanitizer_options_link_helper") { | 
| -  if (is_mac) { | 
| +  if (is_mac || is_ios) { | 
| ldflags = [ "-Wl,-U,_sanitizer_options_link_helper" ] | 
| } else if (!is_win) { | 
| ldflags = [ "-Wl,-u_sanitizer_options_link_helper" ] | 
|  |