gdb/testsuite/gdb.btrace/tailcall-only.c

/* This testcase is part of GDB, the GNU debugger.

   Copyright 2016-2025 Free Software Foundation, Inc.

   Contributed by Intel Corp. <markus.t.metzger@intel.com>

   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/>.  */

static __attribute__ ((noinline)) int
bar_1 (void)
{
  return 42;
}

static __attribute__ ((noinline)) int
bar (void)
{
  return bar_1 ();
}

static __attribute__ ((noinline)) int
foo_1 (void)
{
  return bar ();
}

static __attribute__ ((noinline)) int
foo (void)
{
  return foo_1 ();
}

int
main (void)
{
  int answer;

  answer = foo ();
  answer += 1;

  return answer;
}