Print fuzzer state at process exit.
More generally, we are introducing a mechanism to print diagnostic
information at fuzzer process exit time.
Test: SANITIZE_TARGET="address coverage" make vts -j64 && vts-tradefed
run commandAndExit vts --skip-all-system-status-check --primary-abi-only
--skip-preconditions -l VERBOSE --module VtsHalLightV2_0IfaceFuzzer
Change-Id: Ic5f62ab9d71571a8216a2693814e66946bc707dc
diff --git a/iface_fuzzer/ProtoFuzzerMain.cpp b/iface_fuzzer/ProtoFuzzerMain.cpp
index 9aac071..f1b2c3a 100644
--- a/iface_fuzzer/ProtoFuzzerMain.cpp
+++ b/iface_fuzzer/ProtoFuzzerMain.cpp
@@ -20,6 +20,7 @@
#include <unistd.h>
+#include <cstdlib>
#include <iostream>
#include <memory>
#include <string>
@@ -70,6 +71,16 @@
// Odds of an enum being treated like a scalar are 1:1000.
{1, 1000}};
+// Executed when fuzzer process exits. We use this to print out useful
+// information about the state of the fuzzer.
+static void AtExit() {
+ // Print currently opened interfaces.
+ cerr << "Currently opened interfaces: " << endl;
+ for (const auto &iface_desc : runner->GetOpenedIfaces()) {
+ cerr << iface_desc.first << endl;
+ }
+}
+
extern "C" int LLVMFuzzerInitialize(int *argc, char ***argv) {
params = ExtractProtoFuzzerParams(*argc, *argv);
cerr << params.DebugString() << endl;
@@ -81,6 +92,8 @@
runner = make_unique<ProtoFuzzerRunner>(params.comp_specs_);
runner->Init(params.target_iface_, params.binder_mode_);
+ // Register atexit handler after all static objects' initialization.
+ std::atexit(AtExit);
return 0;
}
