[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/libc/glibc/glibc-2.22/debug/tst-backtrace3.c b/ap/libc/glibc/glibc-2.22/debug/tst-backtrace3.c
new file mode 100644
index 0000000..9993d66
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.22/debug/tst-backtrace3.c
@@ -0,0 +1,83 @@
+/* Test backtrace and backtrace_symbols for recursive calls.
+ Copyright (C) 2010-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <execinfo.h>
+#include <search.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "tst-backtrace.h"
+
+static int do_test (void);
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"
+
+/* The backtrace should include at least 3 * fn, and do_test. */
+#define NUM_FUNCTIONS 4
+
+NO_INLINE int
+fn (int c)
+{
+ void *addresses[NUM_FUNCTIONS];
+ char **symbols;
+ int n;
+ int i;
+
+ if (c > 0)
+ {
+ fn (c - 1);
+ return x;
+ }
+ /* Get the backtrace addresses. */
+ n = backtrace (addresses, sizeof (addresses) / sizeof (addresses[0]));
+ printf ("Obtained backtrace with %d functions\n", n);
+ /* Check that there are at least four functions. */
+ if (n < NUM_FUNCTIONS)
+ {
+ FAIL ();
+ return 1;
+ }
+ /* Convert them to symbols. */
+ symbols = backtrace_symbols (addresses, n);
+ /* Check that symbols were obtained. */
+ if (symbols == NULL)
+ {
+ FAIL ();
+ return 1;
+ }
+ for (i = 0; i < n; ++i)
+ printf ("Function %d: %s\n", i, symbols[i]);
+ /* Check that the function names obtained are accurate. */
+ for (i = 0; i < n - 1; ++i)
+ if (!match (symbols[i], "fn"))
+ {
+ FAIL ();
+ return 1;
+ }
+ /* Symbol names are not available for static functions, so we do not
+ check do_test. */
+ return x;
+}
+
+NO_INLINE static int
+do_test (void)
+{
+ fn (2);
+ return ret;
+}