From bfc1ec408e88b868f166f92511d59082ccb29228 Mon Sep 17 00:00:00 2001
From: Fabian Meumertzheim <meumertzheim@code-intelligence.com>
Date: Sat, 10 Apr 2021 09:09:47 +0200
Subject: Resolve libFuzzer warnings on missing sanitizer methods

Jazzer does not need to be linked with a sanitizer in order to find
bugs, so these warnings are not helpful.
---
 driver/libfuzzer_driver.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/driver/libfuzzer_driver.cpp b/driver/libfuzzer_driver.cpp
index 4d51104e..b6b5085e 100644
--- a/driver/libfuzzer_driver.cpp
+++ b/driver/libfuzzer_driver.cpp
@@ -62,6 +62,14 @@ extern "C" [[maybe_unused]] void __jazzer_set_death_callback(
         callback);
 }
 
+// Suppress libFuzzer warnings about missing sanitizer methods in non-ASan
+// builds.
+extern "C" __attribute__((weak)) int __sanitizer_acquire_crash_state() {
+  return true;
+}
+
+extern "C" __attribute__((weak)) void __sanitizer_print_stack_trace() {}
+
 namespace {
 char *additional_arg;
 std::vector<char *> modified_argv;
-- 
cgit v1.2.3