Revert linuxthreads.cc in r175186

third_party/tcmalloc/chromium/src/base/linuxthreads.cc

 /* Copyright (c) 2005-2007, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 175 matching lines @@
  * time. If the callback ever called ResumeAllProcessThreads(), then
  * we are running a higher risk, though. So, try to avoid calling
  * abort() after calling ResumeAllProcessThreads.
  */
 static volatile int *sig_pids, sig_num_threads, sig_proc, sig_marker;
 
 
 /* Signal handler to help us recover from dying while we are attached to
  * other threads.
  */
-static void SignalHandler(int signum, struct siginfo *si, void *data) {
+static void SignalHandler(int signum, siginfo_t *si, void *data) {
   if (sig_pids != NULL) {
     if (signum == SIGABRT) {
       while (sig_num_threads-- > 0) {
         /* Not sure if sched_yield is really necessary here, but it does not */
         /* hurt, and it might be necessary for the same reasons that we have */
         /* to do so in sys_ptrace_detach().                                  */
         sys_sched_yield();
         sys_ptrace(PTRACE_KILL, sig_pids[sig_num_threads], 0, 0);
       }
     } else if (sig_num_threads > 0) {
@@ skipping 449 matching lines @@
   while (num_threads-- > 0) {
     detached_at_least_one |= sys_ptrace_detach(thread_pids[num_threads]) >= 0;
   }
   return detached_at_least_one;
 }
 
 #ifdef __cplusplus
 }
 #endif
 #endif