501 lines
11 KiB
C
501 lines
11 KiB
C
/* btest.c -- Test for libbacktrace library
|
|
Copyright (C) 2012-2018 Free Software Foundation, Inc.
|
|
Written by Ian Lance Taylor, Google.
|
|
|
|
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.
|
|
|
|
(3) The name of the author may not be used to
|
|
endorse or promote products derived from this software without
|
|
specific prior written permission.
|
|
|
|
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. */
|
|
|
|
/* This program tests the externally visible interfaces of the
|
|
libbacktrace library. */
|
|
|
|
#include <assert.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
#include "filenames.h"
|
|
|
|
#include "backtrace.h"
|
|
#include "backtrace-supported.h"
|
|
|
|
#include "testlib.h"
|
|
|
|
/* Test the backtrace function with non-inlined functions. */
|
|
|
|
static int test1 (void) __attribute__ ((noinline, unused));
|
|
static int f2 (int) __attribute__ ((noinline));
|
|
static int f3 (int, int) __attribute__ ((noinline));
|
|
|
|
static int
|
|
test1 (void)
|
|
{
|
|
/* Returning a value here and elsewhere avoids a tailcall which
|
|
would mess up the backtrace. */
|
|
return f2 (__LINE__) + 1;
|
|
}
|
|
|
|
static int
|
|
f2 (int f1line)
|
|
{
|
|
return f3 (f1line, __LINE__) + 2;
|
|
}
|
|
|
|
static int
|
|
f3 (int f1line, int f2line)
|
|
{
|
|
struct info all[20];
|
|
struct bdata data;
|
|
int f3line;
|
|
int i;
|
|
|
|
data.all = &all[0];
|
|
data.index = 0;
|
|
data.max = 20;
|
|
data.failed = 0;
|
|
|
|
f3line = __LINE__ + 1;
|
|
i = backtrace_full (state, 0, callback_one, error_callback_one, &data);
|
|
|
|
if (i != 0)
|
|
{
|
|
fprintf (stderr, "test1: unexpected return value %d\n", i);
|
|
data.failed = 1;
|
|
}
|
|
|
|
if (data.index < 3)
|
|
{
|
|
fprintf (stderr,
|
|
"test1: not enough frames; got %zu, expected at least 3\n",
|
|
data.index);
|
|
data.failed = 1;
|
|
}
|
|
|
|
check ("test1", 0, all, f3line, "f3", "btest.c", &data.failed);
|
|
check ("test1", 1, all, f2line, "f2", "btest.c", &data.failed);
|
|
check ("test1", 2, all, f1line, "test1", "btest.c", &data.failed);
|
|
|
|
printf ("%s: backtrace_full noinline\n", data.failed ? "FAIL" : "PASS");
|
|
|
|
if (data.failed)
|
|
++failures;
|
|
|
|
return failures;
|
|
}
|
|
|
|
/* Test the backtrace function with inlined functions. */
|
|
|
|
static inline int test2 (void) __attribute__ ((always_inline, unused));
|
|
static inline int f12 (int) __attribute__ ((always_inline));
|
|
static inline int f13 (int, int) __attribute__ ((always_inline));
|
|
|
|
static inline int
|
|
test2 (void)
|
|
{
|
|
return f12 (__LINE__) + 1;
|
|
}
|
|
|
|
static inline int
|
|
f12 (int f1line)
|
|
{
|
|
return f13 (f1line, __LINE__) + 2;
|
|
}
|
|
|
|
static inline int
|
|
f13 (int f1line, int f2line)
|
|
{
|
|
struct info all[20];
|
|
struct bdata data;
|
|
int f3line;
|
|
int i;
|
|
|
|
data.all = &all[0];
|
|
data.index = 0;
|
|
data.max = 20;
|
|
data.failed = 0;
|
|
|
|
f3line = __LINE__ + 1;
|
|
i = backtrace_full (state, 0, callback_one, error_callback_one, &data);
|
|
|
|
if (i != 0)
|
|
{
|
|
fprintf (stderr, "test2: unexpected return value %d\n", i);
|
|
data.failed = 1;
|
|
}
|
|
|
|
check ("test2", 0, all, f3line, "f13", "btest.c", &data.failed);
|
|
check ("test2", 1, all, f2line, "f12", "btest.c", &data.failed);
|
|
check ("test2", 2, all, f1line, "test2", "btest.c", &data.failed);
|
|
|
|
printf ("%s: backtrace_full inline\n", data.failed ? "FAIL" : "PASS");
|
|
|
|
if (data.failed)
|
|
++failures;
|
|
|
|
return failures;
|
|
}
|
|
|
|
/* Test the backtrace_simple function with non-inlined functions. */
|
|
|
|
static int test3 (void) __attribute__ ((noinline, unused));
|
|
static int f22 (int) __attribute__ ((noinline));
|
|
static int f23 (int, int) __attribute__ ((noinline));
|
|
|
|
static int
|
|
test3 (void)
|
|
{
|
|
return f22 (__LINE__) + 1;
|
|
}
|
|
|
|
static int
|
|
f22 (int f1line)
|
|
{
|
|
return f23 (f1line, __LINE__) + 2;
|
|
}
|
|
|
|
static int
|
|
f23 (int f1line, int f2line)
|
|
{
|
|
uintptr_t addrs[20];
|
|
struct sdata data;
|
|
int f3line;
|
|
int i;
|
|
|
|
data.addrs = &addrs[0];
|
|
data.index = 0;
|
|
data.max = 20;
|
|
data.failed = 0;
|
|
|
|
f3line = __LINE__ + 1;
|
|
i = backtrace_simple (state, 0, callback_two, error_callback_two, &data);
|
|
|
|
if (i != 0)
|
|
{
|
|
fprintf (stderr, "test3: unexpected return value %d\n", i);
|
|
data.failed = 1;
|
|
}
|
|
|
|
if (!data.failed)
|
|
{
|
|
struct info all[20];
|
|
struct bdata bdata;
|
|
int j;
|
|
|
|
bdata.all = &all[0];
|
|
bdata.index = 0;
|
|
bdata.max = 20;
|
|
bdata.failed = 0;
|
|
|
|
for (j = 0; j < 3; ++j)
|
|
{
|
|
i = backtrace_pcinfo (state, addrs[j], callback_one,
|
|
error_callback_one, &bdata);
|
|
if (i != 0)
|
|
{
|
|
fprintf (stderr,
|
|
("test3: unexpected return value "
|
|
"from backtrace_pcinfo %d\n"),
|
|
i);
|
|
bdata.failed = 1;
|
|
}
|
|
if (!bdata.failed && bdata.index != (size_t) (j + 1))
|
|
{
|
|
fprintf (stderr,
|
|
("wrong number of calls from backtrace_pcinfo "
|
|
"got %u expected %d\n"),
|
|
(unsigned int) bdata.index, j + 1);
|
|
bdata.failed = 1;
|
|
}
|
|
}
|
|
|
|
check ("test3", 0, all, f3line, "f23", "btest.c", &bdata.failed);
|
|
check ("test3", 1, all, f2line, "f22", "btest.c", &bdata.failed);
|
|
check ("test3", 2, all, f1line, "test3", "btest.c", &bdata.failed);
|
|
|
|
if (bdata.failed)
|
|
data.failed = 1;
|
|
|
|
for (j = 0; j < 3; ++j)
|
|
{
|
|
struct symdata symdata;
|
|
|
|
symdata.name = NULL;
|
|
symdata.val = 0;
|
|
symdata.size = 0;
|
|
symdata.failed = 0;
|
|
|
|
i = backtrace_syminfo (state, addrs[j], callback_three,
|
|
error_callback_three, &symdata);
|
|
if (i == 0)
|
|
{
|
|
fprintf (stderr,
|
|
("test3: [%d]: unexpected return value "
|
|
"from backtrace_syminfo %d\n"),
|
|
j, i);
|
|
symdata.failed = 1;
|
|
}
|
|
|
|
if (!symdata.failed)
|
|
{
|
|
const char *expected;
|
|
|
|
switch (j)
|
|
{
|
|
case 0:
|
|
expected = "f23";
|
|
break;
|
|
case 1:
|
|
expected = "f22";
|
|
break;
|
|
case 2:
|
|
expected = "test3";
|
|
break;
|
|
default:
|
|
assert (0);
|
|
}
|
|
|
|
if (symdata.name == NULL)
|
|
{
|
|
fprintf (stderr, "test3: [%d]: NULL syminfo name\n", j);
|
|
symdata.failed = 1;
|
|
}
|
|
/* Use strncmp, not strcmp, because GCC might create a
|
|
clone. */
|
|
else if (strncmp (symdata.name, expected, strlen (expected))
|
|
!= 0)
|
|
{
|
|
fprintf (stderr,
|
|
("test3: [%d]: unexpected syminfo name "
|
|
"got %s expected %s\n"),
|
|
j, symdata.name, expected);
|
|
symdata.failed = 1;
|
|
}
|
|
}
|
|
|
|
if (symdata.failed)
|
|
data.failed = 1;
|
|
}
|
|
}
|
|
|
|
printf ("%s: backtrace_simple noinline\n", data.failed ? "FAIL" : "PASS");
|
|
|
|
if (data.failed)
|
|
++failures;
|
|
|
|
return failures;
|
|
}
|
|
|
|
/* Test the backtrace_simple function with inlined functions. */
|
|
|
|
static inline int test4 (void) __attribute__ ((always_inline, unused));
|
|
static inline int f32 (int) __attribute__ ((always_inline));
|
|
static inline int f33 (int, int) __attribute__ ((always_inline));
|
|
|
|
static inline int
|
|
test4 (void)
|
|
{
|
|
return f32 (__LINE__) + 1;
|
|
}
|
|
|
|
static inline int
|
|
f32 (int f1line)
|
|
{
|
|
return f33 (f1line, __LINE__) + 2;
|
|
}
|
|
|
|
static inline int
|
|
f33 (int f1line, int f2line)
|
|
{
|
|
uintptr_t addrs[20];
|
|
struct sdata data;
|
|
int f3line;
|
|
int i;
|
|
|
|
data.addrs = &addrs[0];
|
|
data.index = 0;
|
|
data.max = 20;
|
|
data.failed = 0;
|
|
|
|
f3line = __LINE__ + 1;
|
|
i = backtrace_simple (state, 0, callback_two, error_callback_two, &data);
|
|
|
|
if (i != 0)
|
|
{
|
|
fprintf (stderr, "test3: unexpected return value %d\n", i);
|
|
data.failed = 1;
|
|
}
|
|
|
|
if (!data.failed)
|
|
{
|
|
struct info all[20];
|
|
struct bdata bdata;
|
|
|
|
bdata.all = &all[0];
|
|
bdata.index = 0;
|
|
bdata.max = 20;
|
|
bdata.failed = 0;
|
|
|
|
i = backtrace_pcinfo (state, addrs[0], callback_one, error_callback_one,
|
|
&bdata);
|
|
if (i != 0)
|
|
{
|
|
fprintf (stderr,
|
|
("test4: unexpected return value "
|
|
"from backtrace_pcinfo %d\n"),
|
|
i);
|
|
bdata.failed = 1;
|
|
}
|
|
|
|
check ("test4", 0, all, f3line, "f33", "btest.c", &bdata.failed);
|
|
check ("test4", 1, all, f2line, "f32", "btest.c", &bdata.failed);
|
|
check ("test4", 2, all, f1line, "test4", "btest.c", &bdata.failed);
|
|
|
|
if (bdata.failed)
|
|
data.failed = 1;
|
|
}
|
|
|
|
printf ("%s: backtrace_simple inline\n", data.failed ? "FAIL" : "PASS");
|
|
|
|
if (data.failed)
|
|
++failures;
|
|
|
|
return failures;
|
|
}
|
|
|
|
static int test5 (void) __attribute__ ((unused));
|
|
|
|
int global = 1;
|
|
|
|
static int
|
|
test5 (void)
|
|
{
|
|
struct symdata symdata;
|
|
int i;
|
|
uintptr_t addr = (uintptr_t) &global;
|
|
|
|
if (sizeof (global) > 1)
|
|
addr += 1;
|
|
|
|
symdata.name = NULL;
|
|
symdata.val = 0;
|
|
symdata.size = 0;
|
|
symdata.failed = 0;
|
|
|
|
i = backtrace_syminfo (state, addr, callback_three,
|
|
error_callback_three, &symdata);
|
|
if (i == 0)
|
|
{
|
|
fprintf (stderr,
|
|
"test5: unexpected return value from backtrace_syminfo %d\n",
|
|
i);
|
|
symdata.failed = 1;
|
|
}
|
|
|
|
if (!symdata.failed)
|
|
{
|
|
if (symdata.name == NULL)
|
|
{
|
|
fprintf (stderr, "test5: NULL syminfo name\n");
|
|
symdata.failed = 1;
|
|
}
|
|
else if (strcmp (symdata.name, "global") != 0)
|
|
{
|
|
fprintf (stderr,
|
|
"test5: unexpected syminfo name got %s expected %s\n",
|
|
symdata.name, "global");
|
|
symdata.failed = 1;
|
|
}
|
|
else if (symdata.val != (uintptr_t) &global)
|
|
{
|
|
fprintf (stderr,
|
|
"test5: unexpected syminfo value got %lx expected %lx\n",
|
|
(unsigned long) symdata.val,
|
|
(unsigned long) (uintptr_t) &global);
|
|
symdata.failed = 1;
|
|
}
|
|
else if (symdata.size != sizeof (global))
|
|
{
|
|
fprintf (stderr,
|
|
"test5: unexpected syminfo size got %lx expected %lx\n",
|
|
(unsigned long) symdata.size,
|
|
(unsigned long) sizeof (global));
|
|
symdata.failed = 1;
|
|
}
|
|
}
|
|
|
|
printf ("%s: backtrace_syminfo variable\n",
|
|
symdata.failed ? "FAIL" : "PASS");
|
|
|
|
if (symdata.failed)
|
|
++failures;
|
|
|
|
return failures;
|
|
}
|
|
|
|
/* Check that are no files left open. */
|
|
|
|
static void
|
|
check_open_files (void)
|
|
{
|
|
int i;
|
|
|
|
for (i = 3; i < 10; i++)
|
|
{
|
|
if (close (i) == 0)
|
|
{
|
|
fprintf (stderr,
|
|
"ERROR: descriptor %d still open after tests complete\n",
|
|
i);
|
|
++failures;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Run all the tests. */
|
|
|
|
int
|
|
main (int argc ATTRIBUTE_UNUSED, char **argv)
|
|
{
|
|
state = backtrace_create_state (argv[0], BACKTRACE_SUPPORTS_THREADS,
|
|
error_callback_create, NULL);
|
|
|
|
#if BACKTRACE_SUPPORTED
|
|
test1 ();
|
|
test2 ();
|
|
test3 ();
|
|
test4 ();
|
|
#if BACKTRACE_SUPPORTS_DATA
|
|
test5 ();
|
|
#endif
|
|
#endif
|
|
|
|
check_open_files ();
|
|
|
|
exit (failures ? EXIT_FAILURE : EXIT_SUCCESS);
|
|
}
|