Adding __builtin_annotation

git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1497 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e

1 files changed, 11 insertions, 0 deletions

diff --git a/cparser/Elab.ml b/cparser/Elab.ml
index b3e375c..2ae7c7e 100644
--- a/cparser/Elab.ml
+++ b/cparser/Elab.ml
@@ -778,6 +778,17 @@ let elab_expr loc env a =
       let ty = match b3.edesc with ESizeof ty -> ty | _ -> assert false in
       { edesc = ECall(b1, [b2; b3]); etyp = ty }
 
+(* Hack to treat __builtin_annotation the CompCert way.
+   Arguments are treated as per the prototype (const char *, ...).
+   Result type is type of second argument, or void if only one argument. *)
+  | CALL((VARIABLE "__builtin_annotation" as a1), al) ->
+      let b1 = elab a1 in
+      let bl = List.map elab al in
+      let bl' = elab_arguments 1 bl [Env.fresh_ident "",
+                                     TPtr(TInt(IChar, [AConst]),[])] true in
+      let tyres = match bl' with _ :: b2 :: _ -> b2.etyp | _ -> TVoid[] in
+      { edesc = ECall(b1, bl'); etyp = tyres }
+
   | CALL(a1, al) ->
       let b1 =
         (* Catch the old-style usage of calling a function without