rabbit mode

Author: addisoncrump

libafl_libfuzzer/Cargo.toml

@@ -35,6 +35,9 @@ introspection = []
 ## `-fsanitize=fuzzer-no-link -l:libafl_libfuzzer_runtime.a`
 embed-runtime = []
 
+## 🐇
+rabbit = []
+
 [dependencies]
 libfuzzer-sys = { version = "0.4.7", default-features = false }
 document-features = { version = "0.2" }

libafl_libfuzzer/build.rs

@@ -5,6 +5,12 @@ use std::{
     process::{Command, Stdio},
 };
 
+#[cfg(feature = "rabbit")]
+const NAMESPACE: &str = "🐇";
+#[cfg(not(feature = "rabbit"))]
+const NAMESPACE: &str = "__libafl";
+const NAMESPACE_LEN: usize = NAMESPACE.as_bytes().len();
+
 fn main() {
     if cfg!(any(feature = "cargo-clippy", docsrs)) {
         return; // skip when clippy or docs is running
@@ -116,9 +122,6 @@ fn main() {
 
         let mut redefinitions_file = BufWriter::new(File::create(&redefined_symbols).unwrap());
 
-        const NAMESPACE: &str = "🐇";
-        const NAMESPACE_LEN: usize = NAMESPACE.as_bytes().len();
-
         let replacement = format!("_ZN{NAMESPACE_LEN}{NAMESPACE}");
 
         // redefine all the rust-mangled symbols we can