aboutsummaryrefslogtreecommitdiffstats
path: root/src/vppinfra/test_longjmp.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/vppinfra/test_longjmp.c')
-rw-r--r--src/vppinfra/test_longjmp.c129
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:
+ */