Make ExceptionHandler::HandleSignal() public.

Patch by Alexander Potapenko <glider@chromium.org>

Review URL: https://codereview.appspot.com/6461052/


git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1008 4c0a9323-5329-0410-9bdc-e9ce6186880e

src/client/linux/handler/exception_handler.cc

@@ -323,6 +323,16 @@ bool ExceptionHandler::HandleSignal(int sig, siginfo_t* info, void* uc) {
   return GenerateDump(&context);
 }
 
+// This is a public interface to HandleSignal that allows the client to
+// generate a crash dump. This function may run in a compromised context.
+bool ExceptionHandler::SimulateSignalDelivery(int sig) {
+  siginfo_t siginfo;
+  my_memset(&siginfo, 0, sizeof(siginfo_t));
+  struct ucontext context;
+  getcontext(&context);
+  return HandleSignal(sig, &siginfo, &context);
+}
+
 // This function may run in a compromised context: see the top of the file.
 bool ExceptionHandler::GenerateDump(CrashContext *context) {
   if (IsOutOfProcess())

src/client/linux/handler/exception_handler.h

@@ -193,6 +193,8 @@ class ExceptionHandler {
                       size_t mapping_size,
                       size_t file_offset);
 
+  // Force signal handling for the specified signal.
+  bool SimulateSignalDelivery(int sig);
  private:
   bool InstallHandlers();
   void UninstallHandlers();