revert large map (#2004)

fuzzers/backtrace_baby_fuzzers/forkserver_executor/src/main.rs

@@ -30,7 +30,7 @@ use libafl_bolts::{
 
 #[allow(clippy::similar_names)]
 pub fn main() {
-    const MAP_SIZE: usize = 2621440;
+    const MAP_SIZE: usize = 65536;
 
     //Coverage map shared between observer and executor
     #[cfg(target_vendor = "apple")]

fuzzers/forkserver_libafl_cc/src/main.rs

@@ -84,7 +84,7 @@ struct Opt {
 
 #[allow(clippy::similar_names)]
 pub fn main() {
-    const MAP_SIZE: usize = 2621440;
+    const MAP_SIZE: usize = 65536;
 
     let opt = Opt::parse();
 

fuzzers/forkserver_simple/src/main.rs

@@ -84,7 +84,7 @@ struct Opt {
 
 #[allow(clippy::similar_names)]
 pub fn main() {
-    const MAP_SIZE: usize = 2621440;
+    const MAP_SIZE: usize = 65536;
 
     let opt = Opt::parse();
 

libafl_cc/src/cfg.rs

@@ -96,7 +96,7 @@ where
     #[must_use]
     pub fn new() -> Self {
         let map_size = option_env!("LIBAFL_EDGES_MAP_SIZE")
-            .map_or(Ok(2621440), str::parse)
+            .map_or(Ok(65536), str::parse)
             .expect("Could not parse LIBAFL_EDGES_MAP_SIZE");
         Self {
             edges: (0..map_size).map(|_| None).collect(),