- comment changed to be more precise

- adapted test to be more readable

Signed-off-by: Quentin JEROME <qjerome@users.noreply.github.com>

aya-obj/src/btf/btf.rs

@@ -550,7 +550,11 @@ impl Btf {
                         || name == "memmove"
                         || name == "memcmp"
                     {
-                        // Sanitize BTF_FUNC_GLOBAL and memset, memcpy
+                        // Sanitize BTF_FUNC_GLOBAL when not supported and ensure that
+                        // memory builtins are marked as static. Globals are type checked
+                        // and verified separately from their callers, while instead we
+                        // want tracking info (eg bound checks) to be propagated to the
+                        // memory builtins.
                         let mut fixed_ty = ty.clone();
                         if ty.linkage() == FuncLinkage::Global {
                             if !features.btf_func_global {
@@ -1387,9 +1391,8 @@ mod tests {
         let func_proto_type_id =
             btf.add_type(BtfType::FuncProto(FuncProto::new(params, int_type_id)));
 
-        ["memset", "memcpy", "memcmp", "memmove"]
-            .iter()
-            .for_each(|fname| {
+        let builtins = ["memset", "memcpy", "memcmp", "memmove"];
+        for fname in builtins {
             let func_name_offset = btf.add_string(fname.to_string());
             let func_type_id = btf.add_type(BtfType::Func(Func::new(
                 func_name_offset,
@@ -1415,7 +1418,7 @@ mod tests {
             // Ensure we can convert to bytes and back again
             let raw = btf.to_bytes();
             Btf::parse(&raw, Endianness::default()).unwrap();
-            });
+        }
     }
 
     #[test]