Fix cfg clippy for libafl_qemu (#2397)

* optional final comma

* fix systemmode

fuzzers/qemu_systemmode/build.rs

@@ -5,7 +5,7 @@ macro_rules! assert_unique_feature {
     () => {};
     ($first:tt $(,$rest:tt)*) => {
         $(
-            #[cfg(all(not(any(doc, feature = "clippy")), feature = $first, feature = $rest))]
+            #[cfg(all(not(doc), feature = $first, feature = $rest))]
             compile_error!(concat!("features \"", $first, "\" and \"", $rest, "\" cannot be used together"));
         )*
         assert_unique_feature!($($rest),*);

libafl_concolic/symcc_runtime/src/lib.rs

@@ -164,7 +164,7 @@ macro_rules! export_rust_runtime_fn {
     // special case for build_integer_from_buffer cuz the next one just doesn't work!!!!!!!
     (pub fn build_integer_from_buffer(
         buffer: *mut ::std::os::raw::c_void,
-        num_bits: ::std::os::raw::c_uint,) -> RSymExpr,$c_name:ident; $rt_cb:path) => {
+        num_bits: ::std::os::raw::c_uint$(,)?) -> RSymExpr,$c_name:ident; $rt_cb:path) => {
         #[allow(clippy::missing_safety_doc)]
         #[no_mangle]
         pub unsafe extern "C" fn _rsym_build_integer_from_buffer(buffer: *mut ::std::os::raw::c_void, num_bits: ::std::os::raw::c_uint) {

libafl_qemu/Cargo.toml

@@ -17,7 +17,6 @@ rustdoc-args = ["--cfg", "docsrs"]
 
 [features]
 default = ["fork", "build_libgasan", "build_libqasan", "serdeany_autoreg", "injections"]
-clippy = [] # special feature for clippy, don't use in normal projects§
 document-features = ["dep:document-features"]
 paranoid_debug = ["libafl_qemu_sys/paranoid_debug"] # Will perform as many checks as possible. The target will be greatly slowed down.
 
@@ -62,6 +61,10 @@ slirp = [ "systemmode", "libafl_qemu_sys/slirp" ] # build qemu with host libslir
 # Requires the binary's build.rs to call `build_libafl_qemu`
 shared = [ "libafl_qemu_sys/shared" ]
 
+#! ## Internal features, don't use in normal projects
+## clippy workaround
+clippy = ["libafl_qemu_sys/clippy"]
+
 [dependencies]
 libafl = { path = "../libafl", version = "0.13.1", default-features = false, features = ["std", "derive", "regex"] }
 libafl_bolts = { path = "../libafl_bolts", version = "0.13.1", default-features = false, features = ["std", "derive"] }

libafl_qemu/src/executor/mod.rs

@@ -118,7 +118,7 @@ pub unsafe fn inproc_qemu_timeout_handler<'a, E, EM, OF, Z>(
     EM: EventFirer<State = E::State> + EventRestarter<State = E::State>,
     OF: Feedback<E::State>,
     E::State: HasSolutions + HasCorpus + HasExecutions,
-    Z: HasObjective<Objective = OF, State = E::State>,
+    Z: HasObjective<Objective = OF, State = E::State> + ExecutionProcessor + HasScheduler,
 {
     if BREAK_ON_TMOUT {
         qemu_system_debug_request();

libafl_qemu/src/qemu/mod.rs

@@ -82,8 +82,12 @@ create_hook_id!(Block, libafl_qemu_remove_block_hook, true);
 create_hook_id!(Read, libafl_qemu_remove_read_hook, true);
 create_hook_id!(Write, libafl_qemu_remove_write_hook, true);
 create_hook_id!(Cmp, libafl_qemu_remove_cmp_hook, true);
+
+#[cfg(emulation_mode = "usermode")]
 create_hook_id!(PreSyscall, libafl_qemu_remove_pre_syscall_hook, false);
+#[cfg(emulation_mode = "usermode")]
 create_hook_id!(PostSyscall, libafl_qemu_remove_post_syscall_hook, false);
+#[cfg(emulation_mode = "usermode")]
 create_hook_id!(NewThread, libafl_qemu_remove_new_thread_hook, false);
 
 #[derive(Debug)]