On Fri, Jul 26, 2013 at 11:07:42AM +0800, tsuletgo wrote:
> Bug: Visitor's instruction queue is not empty.
> You should only use queueInstr inside a function body!
> Fatal error: exception Errormsg.Error
> Could anyone give me some suggestions ?
I'm not sure exactly why this fails, but I guess you might break some invariant
by iterating yourself on the globals rather than letting the visitor do it. What
about something like (untested):
List.iter
begin fun g ->
match g with
| GFun( func, loc) ->
ignore (visitCilFunction (new myStmtVisitor) func);
| _ -> ()
end
file.globals
class myVisitor = object(self)
inherit nopCilVisitor
method vfunc = function
| GFun _ -> DoChildren
| _ -> SkipChildren
method vstmt st =
let df_fun = Cil.emptyFunction "df_stmt_monitor" in
let df_monitor_call = Call(None,Lval(Var df_fun.svar,NoOffset),
[Cil.integer !function_id; Cil.integer st.sid], !currentLoc) in
self#queueInstr [df_monitor_call];
DoChildren
end;;
visitCilFileSameGlobals (new myVisitor) file
It might also be a bug in the visitor code; if the above doesn't help, could
you please send a minimal example exhibiting the issue (your code+input file)?
Best,
--
Gabriel
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