116 lines
3.3 KiB
C
116 lines
3.3 KiB
C
/* $NetBSD: t_backtrace.c,v 1.5 2012/06/02 14:52:28 njoly Exp $ */
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/*-
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* Copyright (c) 2012 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Christos Zoulas.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__RCSID("$NetBSD: t_backtrace.c,v 1.5 2012/06/02 14:52:28 njoly Exp $");
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#include <atf-c.h>
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#include <atf-c/config.h>
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#include <string.h>
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#include <stdlib.h>
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#include <execinfo.h>
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#ifndef __arraycount
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#define __arraycount(a) (sizeof(a) / sizeof(a[0]))
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#endif
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static void __attribute__((__noinline__))
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myfunc3(size_t ncalls)
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{
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static const char *top[] = { "myfunc", "atfu_backtrace_fmt_basic_body",
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"atf_tc_run", "atf_tp_main", "main", "___start" };
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size_t j, nptrs;
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void *buffer[ncalls + 10];
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char **strings;
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nptrs = backtrace(buffer, __arraycount(buffer));
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ATF_REQUIRE_EQ(nptrs, ncalls + 8);
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strings = backtrace_symbols_fmt(buffer, nptrs, "%n");
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ATF_CHECK(strings != NULL);
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ATF_CHECK_STREQ(strings[0], "myfunc3");
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ATF_CHECK_STREQ(strings[1], "myfunc2");
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for (j = 2; j < ncalls + 2; j++)
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ATF_CHECK_STREQ(strings[j], "myfunc1");
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for (size_t i = 0; j < nptrs; i++, j++)
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ATF_CHECK_STREQ(strings[j], top[i]);
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free(strings);
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}
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static void __attribute__((__noinline__))
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myfunc2(size_t ncalls)
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{
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myfunc3(ncalls);
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}
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static void __attribute__((__noinline__))
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myfunc1(size_t origcalls, size_t ncalls)
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{
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if (ncalls > 1)
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myfunc1(origcalls, ncalls - 1);
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else
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myfunc2(origcalls);
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}
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static void __attribute__((__noinline__))
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myfunc(size_t ncalls)
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{
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myfunc1(ncalls, ncalls);
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}
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ATF_TC(backtrace_fmt_basic);
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ATF_TC_HEAD(backtrace_fmt_basic, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test backtrace_fmt(3)");
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}
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ATF_TC_BODY(backtrace_fmt_basic, tc)
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{
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const char *arch = atf_config_get("atf_arch");
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if (strcmp(arch, "x86_64") != 0)
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atf_tc_skip("PR toolchain/46490: libexecinfo only"
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" works on amd64 currently");
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myfunc(12);
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}
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ATF_TP_ADD_TCS(tp)
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{
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ATF_TP_ADD_TC(tp, backtrace_fmt_basic);
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return atf_no_error();
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}
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