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/* This testcase is part of GDB, the GNU debugger.
Copyright 2008-2017 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include <setjmp.h>
jmp_buf env;
volatile int longjmps = 0;
volatile int resumes = 0;
int
call_longjmp (jmp_buf *buf)
{
longjmps++;
longjmp (*buf, 1);
}
void
hidden_longjmp (void)
{
if (setjmp (env) == 0)
{
call_longjmp (&env);
}
else
resumes++;
}
int
main ()
{
volatile int i = 0;
/* Pattern 1 - simple longjmp. */
if (setjmp (env) == 0) /* patt1 */
{
longjmps++;
longjmp (env, 1);
}
else
{
resumes++;
}
i = 1; /* miss_step_1 */
/* Pattern 2 - longjmp from an inner function. */
if (setjmp (env) == 0) /* patt2 */
{
call_longjmp (&env);
}
else
{
resumes++;
}
i = 2; /* miss_step_2 */
/* Pattern 3 - setjmp/longjmp inside stepped-over function. */
hidden_longjmp (); /* patt3 */
i = 77; /* longjmp caught */
i = 3; /* patt_end3. */
return 0;
}
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