From fa513101212327f45965092652f6497aa28362ec Mon Sep 17 00:00:00 2001
From: MarcoFalke <*~=`'#}+{/-|&$^_@721217.xyz>
Date: Tue, 1 Apr 2025 11:34:56 +0200
Subject: [PATCH] contrib: Warn about using libFuzzer for coverage check

---
 contrib/devtools/deterministic-fuzz-coverage/src/main.rs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/contrib/devtools/deterministic-fuzz-coverage/src/main.rs b/contrib/devtools/deterministic-fuzz-coverage/src/main.rs
index 285f6cddc93..9c1738396b5 100644
--- a/contrib/devtools/deterministic-fuzz-coverage/src/main.rs
+++ b/contrib/devtools/deterministic-fuzz-coverage/src/main.rs
@@ -108,6 +108,11 @@ fn deterministic_coverage(
     par: usize,
 ) -> AppResult {
     let using_libfuzzer = using_libfuzzer(fuzz_exe)?;
+    if using_libfuzzer {
+        println!("Warning: The fuzz executable was compiled with libFuzzer as sanitizer.");
+        println!("This tool may be tripped by libFuzzer misbehavior.");
+        println!("It is recommended to compile without libFuzzer.");
+    }
     let corpus_dir = corpora_dir.join(fuzz_target);
     let mut entries = read_dir(&corpus_dir)
         .map_err(|err| {