Handle SIGSEGV in BrowserTestBase

content/public/test/browser_test_base.cc

Index: content/public/test/browser_test_base.cc
diff --git a/content/public/test/browser_test_base.cc b/content/public/test/browser_test_base.cc
index c6d2e4b6a03c91f8fc0a4adc8ae160b69d20c030..0b510beb8b483eefcdec4d63d0ceac8e1fa3d53e 100644
--- a/content/public/test/browser_test_base.cc
+++ b/content/public/test/browser_test_base.cc
@@ -62,18 +62,19 @@ namespace content {
 namespace {
 
 #if defined(OS_POSIX)
-// On SIGTERM (sent by the runner on timeouts), dump a stack trace (to make
-// debugging easier) and also exit with a known error code (so that the test
-// framework considers this a failure -- http://crbug.com/57578).
+// On SIGSEGV or SIGTERM (sent by the runner on timeouts), dump a stack trace
+// (to make debugging easier) and also exit with a known error code (so that
+// the test framework considers this a failure -- http://crbug.com/57578).
 // Note: We only want to do this in the browser process, and not forked
 // processes. That might lead to hangs because of locks inside tcmalloc or the
 // OS. See http://crbug.com/141302.
 static int g_browser_process_pid;
 static void DumpStackTraceSignalHandler(int signal) {
   if (g_browser_process_pid == base::GetCurrentProcId()) {
-    logging::RawLog(logging::LOG_ERROR,
-                    "BrowserTestBase signal handler received SIGTERM. "
-                    "Backtrace:\n");
+    std::string message("BrowserTestBase received signal: ");
+    message += strsignal(signal);
+    message += ". Backtrace:\n";
+    logging::RawLog(logging::LOG_ERROR, message.c_str());
     base::debug::StackTrace().Print();
   }
   _exit(128 + signal);
@@ -314,10 +315,11 @@ void BrowserTestBase::TearDown() {
 
 void BrowserTestBase::ProxyRunTestOnMainThreadLoop() {
 #if defined(OS_POSIX)
-  if (handle_sigterm_) {
-    g_browser_process_pid = base::GetCurrentProcId();
+  g_browser_process_pid = base::GetCurrentProcId();
+  signal(SIGSEGV, DumpStackTraceSignalHandler);
+
+  if (handle_sigterm_)
     signal(SIGTERM, DumpStackTraceSignalHandler);
-  }
 #endif  // defined(OS_POSIX)
 
   if (base::CommandLine::ForCurrentProcess()->HasSwitch(