1 /* { dg-skip-if "requires io" { freestanding } { "*" } { "" } } */
2
3 #ifndef test
4 #include <stdio.h>
5 #include <stdlib.h>
6 #include <stdarg.h>
7
8 volatile int should_optimize;
9
10 int
11 __attribute__((noinline))
__vfprintf_chk(FILE * f,int flag,const char * fmt,va_list ap)12 __vfprintf_chk (FILE *f, int flag, const char *fmt, va_list ap)
13 {
14 #ifdef __OPTIMIZE__
15 if (should_optimize)
16 abort ();
17 #endif
18 should_optimize = 1;
19 return vfprintf (f, fmt, ap);
20 }
21
22 void
inner(int x,...)23 inner (int x, ...)
24 {
25 va_list ap, ap2;
26 va_start (ap, x);
27 va_start (ap2, x);
28
29 switch (x)
30 {
31 #define test(n, ret, opt, fmt, args) \
32 case n: \
33 should_optimize = opt; \
34 __vfprintf_chk (stdout, 1, fmt, ap); \
35 if (! should_optimize) \
36 abort (); \
37 should_optimize = 0; \
38 if (__vfprintf_chk (stdout, 1, fmt, ap2) != ret) \
39 abort (); \
40 if (! should_optimize) \
41 abort (); \
42 break;
43 #include "vfprintf-chk-1.c"
44 #undef test
45 default:
46 abort ();
47 }
48
49 va_end (ap);
50 va_end (ap2);
51 }
52
53 int
main(void)54 main (void)
55 {
56 #define test(n, ret, opt, fmt, args) \
57 inner args;
58 #include "vfprintf-chk-1.c"
59 #undef test
60 return 0;
61 }
62
63 #else
64 test (0, 5, 1, "hello", (0));
65 test (1, 6, 1, "hello\n", (1));
66 test (2, 1, 1, "a", (2));
67 test (3, 0, 1, "", (3));
68 test (4, 5, 0, "%s", (4, "hello"));
69 test (5, 6, 0, "%s", (5, "hello\n"));
70 test (6, 1, 0, "%s", (6, "a"));
71 test (7, 0, 0, "%s", (7, ""));
72 test (8, 1, 0, "%c", (8, 'x'));
73 test (9, 7, 0, "%s\n", (9, "hello\n"));
74 test (10, 2, 0, "%d\n", (10, 0));
75 #endif
76