1ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown
2ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#include <stdio.h>
3ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#include "valgrind.h"
4ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown
5ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* Check that function wrapping works for a recursive function. */
6ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown
7ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* This is needed to stop gcc4 turning 'fact' into a loop */
8ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown__attribute__((noinline))
9ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownint mul ( int x, int y ) { return x * y; }
10ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown
11ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownint fact ( int n )
12ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{
13ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown   if (n == 0) return 1; else return mul(n, fact(n-1));
14ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown}
15ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown
16ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownint I_WRAP_SONAME_FNNAME_ZU(NONE,fact) ( int n )
17ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{
18ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown   int    r;
19ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown   OrigFn fn;
20ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown   VALGRIND_GET_ORIG_FN(fn);
21ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown   printf("in wrapper1-pre:  fact(%d)\n", n);
22ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown   CALL_FN_W_W(r, fn, n);
23ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown   printf("in wrapper1-post: fact(%d) = %d\n", n, r);
24ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown   return r;
25ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown}
26ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown
27ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* --------------- */
28ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown
29ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownint main ( void )
30ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{
31ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown   int r;
32ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown   printf("computing fact(5)\n");
33ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown   r = fact(5);
34ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown   printf("fact(5) = %d\n", r);
35ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown   return 0;
36ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown}
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