1 files changed, 129 insertions, 0 deletions
diff --git a/src/vppinfra/test_longjmp.c b/src/vppinfra/test_longjmp.c
new file mode 100644
index 00000000000..2415c4f061c
--- /dev/null
+++ b/src/vppinfra/test_longjmp.c
@@ -0,0 +1,129 @@
+/*
+ * Copyright (c) 2015 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/*
+  Copyright (c) 2005 Eliot Dresselhaus
+
+  Permission is hereby granted, free of charge, to any person obtaining
+  a copy of this software and associated documentation files (the
+  "Software"), to deal in the Software without restriction, including
+  without limitation the rights to use, copy, modify, merge, publish,
+  distribute, sublicense, and/or sell copies of the Software, and to
+  permit persons to whom the Software is furnished to do so, subject to
+  the following conditions:
+
+  The above copyright notice and this permission notice shall be
+  included in all copies or substantial portions of the Software.
+
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+#include <vppinfra/clib.h>
+#include <vppinfra/longjmp.h>
+#include <vppinfra/format.h>
+
+static void test_calljmp (unformat_input_t * input);
+
+static int i;
+
+static int verbose;
+#define if_verbose(format,args...) \
+  if (verbose) { clib_warning(format, ## args); }
+
+static never_inline void
+f2 (clib_longjmp_t * env)
+{
+  i++;
+  clib_longjmp (env, 1);
+}
+
+static never_inline void
+f1 (clib_longjmp_t * env)
+{
+  i++;
+  f2 (env);
+}
+
+int
+test_longjmp_main (unformat_input_t * input)
+{
+  clib_longjmp_t env;
+
+  i = 0;
+  if (clib_setjmp (&env, 0) == 0)
+    {
+      if_verbose ("calling long jumper %d", i);
+      f1 (&env);
+    }
+  if_verbose ("back from long jump %d", i);
+
+  test_calljmp (input);
+
+  return 0;
+}
+
+static uword
+f3 (uword arg)
+{
+  uword i, j, array[10];
+
+  for (i = 0; i < ARRAY_LEN (array); i++)
+    array[i] = arg + i;
+
+  j = 0;
+  for (i = 0; i < ARRAY_LEN (array); i++)
+    j ^= array[i];
+
+  return j;
+}
+
+static void
+test_calljmp (unformat_input_t * input)
+{
+  static u8 stack[32 * 1024] __attribute__ ((aligned (16)));
+  uword v;
+
+  v = clib_calljmp (f3, 0, stack + sizeof (stack));
+  ASSERT (v == f3 (0));
+  if_verbose ("calljump ok");
+}
+
+#ifdef CLIB_UNIX
+int
+main (int argc, char *argv[])
+{
+  unformat_input_t i;
+  int res;
+
+  verbose = (argc > 1);
+  unformat_init_command_line (&i, argv);
+  res = test_longjmp_main (&i);
+  unformat_free (&i);
+  return res;
+}
+#endif
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */