Module Name: src
Committed By: christos
Date: Sun May 27 18:47:18 UTC 2012
Added Files:
src/tests/lib/libexecinfo: Makefile t_backtrace.c
Log Message:
add a test for the backtrace function.
To generate a diff of this commit:
cvs rdiff -u -r0 -r1.1 src/tests/lib/libexecinfo/Makefile \
src/tests/lib/libexecinfo/t_backtrace.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Added files:
Index: src/tests/lib/libexecinfo/Makefile
diff -u /dev/null src/tests/lib/libexecinfo/Makefile:1.1
--- /dev/null Sun May 27 14:47:18 2012
+++ src/tests/lib/libexecinfo/Makefile Sun May 27 14:47:18 2012
@@ -0,0 +1,13 @@
+# $NetBSD: Makefile,v 1.1 2012/05/27 18:47:18 christos Exp $
+
+.include <bsd.own.mk>
+
+TESTSDIR= ${TESTSBASE}/lib/libm
+
+TESTS_C+= t_backtrace
+
+LDADD+= -lexecinfo -lelf
+DPADD+= ${LIBEXECINFO} ${LIBELF}
+DBG=-O0 # prevent inlining, nothing else helps.
+
+.include <bsd.test.mk>
Index: src/tests/lib/libexecinfo/t_backtrace.c
diff -u /dev/null src/tests/lib/libexecinfo/t_backtrace.c:1.1
--- /dev/null Sun May 27 14:47:18 2012
+++ src/tests/lib/libexecinfo/t_backtrace.c Sun May 27 14:47:18 2012
@@ -0,0 +1,108 @@
+/* $NetBSD: t_backtrace.c,v 1.1 2012/05/27 18:47:18 christos Exp $ */
+
+/*-
+ * Copyright (c) 2012 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Christos Zoulas.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#include <sys/cdefs.h>
+__RCSID("$NetBSD: t_backtrace.c,v 1.1 2012/05/27 18:47:18 christos Exp $");
+
+#include <atf-c.h>
+#include <string.h>
+#include <stdlib.h>
+#include <execinfo.h>
+
+#ifndef __arraycount
+#define __arraycount(a) (sizeof(a) / sizeof(a[0]))
+#endif
+
+static void __attribute__((__noinline__))
+myfunc3(size_t ncalls)
+{
+ static const char *top[] = { "myfunc", "atfu_backtrace_fmt_basic_body",
+ "atf_tc_run", "atf_tp_main", "main", "___start" };
+ size_t j, nptrs;
+ void *buffer[ncalls + 10];
+ char **strings;
+
+ nptrs = backtrace(buffer, __arraycount(buffer));
+ ATF_CHECK_EQ(nptrs, ncalls + 8);
+
+ strings = backtrace_symbols_fmt(buffer, nptrs, "%n");
+
+ ATF_CHECK(strings != NULL);
+ ATF_CHECK_STREQ(strings[0], "myfunc3");
+ ATF_CHECK_STREQ(strings[1], "myfunc2");
+
+ for (j = 2; j < ncalls + 2; j++)
+ ATF_CHECK_STREQ(strings[j], "myfunc1");
+
+ for (size_t i = 0; j < nptrs; i++, j++)
+ ATF_CHECK_STREQ(strings[j], top[i]);
+
+ free(strings);
+}
+
+static void __attribute__((__noinline__))
+myfunc2(size_t ncalls)
+{
+ myfunc3(ncalls);
+}
+
+static void __attribute__((__noinline__))
+myfunc1(size_t origcalls, size_t ncalls)
+{
+ if (ncalls > 1)
+ myfunc1(origcalls, ncalls - 1);
+ else
+ myfunc2(origcalls);
+}
+
+static void __attribute__((__noinline__))
+myfunc(size_t ncalls)
+{
+ myfunc1(ncalls, ncalls);
+}
+
+ATF_TC(backtrace_fmt_basic);
+ATF_TC_HEAD(backtrace_fmt_basic, tc)
+{
+ atf_tc_set_md_var(tc, "descr", "Test backtrace_fmt(3)");
+}
+
+ATF_TC_BODY(backtrace_fmt_basic, tc)
+{
+ myfunc(12);
+}
+
+ATF_TP_ADD_TCS(tp)
+{
+
+ ATF_TP_ADD_TC(tp, backtrace_fmt_basic);
+
+ return atf_no_error();
+}
