crash_dump: clear the default crash handlers.

crash_dump is a dynamic executable that gets the default crash dumping
handlers set by the linker. Turn them off to prevent crash_dump from
dumping itself.

Bug: http://b/34472671
Test: inserted an abort into crash_dump
Change-Id: Ic9d708805ad47afbb2a9ff37e2ca059f23f421de

1 files changed, 1 insertions, 11 deletions

diff --git a/debuggerd/handler/debuggerd_handler.cpp b/debuggerd/handler/debuggerd_handler.cpp
index 83db3a745..c031046f2 100644
--- a/debuggerd/handler/debuggerd_handler.cpp
+++ b/debuggerd/handler/debuggerd_handler.cpp
@@ -367,15 +367,5 @@ void debuggerd_init(debuggerd_callbacks_t* callbacks) {
 
   // Use the alternate signal stack if available so we can catch stack overflows.
   action.sa_flags |= SA_ONSTACK;
-
-  sigaction(SIGABRT, &action, nullptr);
-  sigaction(SIGBUS, &action, nullptr);
-  sigaction(SIGFPE, &action, nullptr);
-  sigaction(SIGILL, &action, nullptr);
-  sigaction(SIGSEGV, &action, nullptr);
-#if defined(SIGSTKFLT)
-  sigaction(SIGSTKFLT, &action, nullptr);
-#endif
-  sigaction(SIGTRAP, &action, nullptr);
-  sigaction(DEBUGGER_SIGNAL, &action, nullptr);
+  debuggerd_register_handlers(&action);
 }