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libbacktrace
Commit 17f687d2 by Than McIntosh Committed by Ian Lance Taylor
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Update from gcc trunk version of libbacktrace at svn rev 256427. (#8)

Includes (among other things) support for compressed debug sections, a variety of bugfixes, and expanded test coverage.
parent 14d377e9
Showing with 1036 additions and 299 deletions
Makefile.am
# Makefile.am -- Backtrace Makefile.
# Copyright (C) 2012-2016 Free Software Foundation, Inc.
# Copyright (C) 2012-2018 Free Software Foundation, Inc.
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
......@@ -29,11 +29,14 @@
# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
ACLOCAL_AMFLAGS = -I .. -I ../config
AM_CFLAGS = $(EXTRA_FLAGS) $(WARN_FLAGS) $(PIC_FLAG)
lib_LTLIBRARIES = libbacktrace.la
include_HEADERS = backtrace.h backtrace-supported.h
noinst_LTLIBRARIES = libbacktrace.la
libbacktrace_la_SOURCES = \
backtrace.h \
atomic.c \
......@@ -53,7 +56,8 @@ BACKTRACE_FILES = \
FORMAT_FILES = \
elf.c \
pecoff.c \
unknown.c
unknown.c \
xcoff.c
VIEW_FILES = \
read.c \
......@@ -85,7 +89,7 @@ TESTS = $(check_PROGRAMS)
if NATIVE
btest_SOURCES = btest.c
btest_SOURCES = btest.c testlib.c
btest_CFLAGS = $(AM_CFLAGS) -g -O
btest_LDADD = libbacktrace.la
......@@ -96,6 +100,64 @@ stest_LDADD = libbacktrace.la
check_PROGRAMS += stest
ztest_SOURCES = ztest.c testlib.c
ztest_CFLAGS = -DSRCDIR=\"$(srcdir)\"
ztest_LDADD = libbacktrace.la
if HAVE_ZLIB
ztest_LDADD += -lz
endif
ztest_LDADD += $(CLOCK_GETTIME_LINK)
check_PROGRAMS += ztest
edtest_SOURCES = edtest.c edtest2_build.c testlib.c
edtest_LDADD = libbacktrace.la
check_PROGRAMS += edtest
edtest2_build.c: gen_edtest2_build; @true
gen_edtest2_build: $(srcdir)/edtest2.c
cat $(srcdir)/edtest2.c > tmp-edtest2_build.c
$(SHELL) $(srcdir)/move-if-change tmp-edtest2_build.c edtest2_build.c
echo timestamp > $@
if HAVE_PTHREAD
check_PROGRAMS += ttest
ttest_SOURCES = ttest.c testlib.c
ttest_CFLAGS = $(AM_CFLAGS) -pthread
ttest_LDADD = libbacktrace.la
endif HAVE_PTHREAD
if HAVE_OBJCOPY_DEBUGLINK
TESTS += dtest
dtest: btest
$(OBJCOPY) --only-keep-debug btest btest.debug
$(OBJCOPY) --strip-debug --add-gnu-debuglink=btest.debug btest dtest
endif HAVE_OBJCOPY_DEBUGLINK
if HAVE_COMPRESSED_DEBUG
ctestg_SOURCES = btest.c testlib.c
ctestg_CFLAGS = $(AM_CFLAGS) -g
ctestg_LDFLAGS = -Wl,--compress-debug-sections=zlib-gnu
ctestg_LDADD = libbacktrace.la
ctesta_SOURCES = btest.c testlib.c
ctesta_CFLAGS = $(AM_CFLAGS) -g
ctesta_LDFLAGS = -Wl,--compress-debug-sections=zlib-gabi
ctesta_LDADD = libbacktrace.la
check_PROGRAMS += ctestg ctesta
endif
endif NATIVE
# We can't use automake's automatic dependency tracking, because it
......@@ -112,8 +174,8 @@ endif NATIVE
alloc.lo: config.h backtrace.h internal.h
backtrace.lo: config.h backtrace.h internal.h
btest.lo: backtrace.h backtrace-supported.h
dwarf.lo: config.h backtrace.h internal.h
btest.lo: backtrace.h backtrace-supported.h filenames.h
dwarf.lo: config.h filenames.h backtrace.h internal.h
elf.lo: config.h backtrace.h internal.h
fileline.lo: config.h backtrace.h internal.h
mmap.lo: config.h backtrace.h internal.h
......@@ -128,3 +190,5 @@ sort.lo: config.h backtrace.h internal.h
stest.lo: config.h backtrace.h internal.h
state.lo: config.h backtrace.h backtrace-supported.h internal.h
unknown.lo: config.h backtrace.h internal.h
xcoff.lo: config.h backtrace.h internal.h
acinclude.m4
......@@ -69,3 +69,4 @@ CFLAGS="$save_CFLAGS"
m4_popdef([acx_Var])dnl
AC_LANG_POP(C)
])# ACX_PROG_CC_WARNING_OPTS
aclocal.m4
This source diff could not be displayed because it is too large. You can view the blob instead.
alloc.c
/* alloc.c -- Memory allocation without mmap.
Copyright (C) 2012-2016 Free Software Foundation, Inc.
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
......
atomic.c
/* atomic.c -- Support for atomic functions if not present.
Copyright (C) 2013-2016 Free Software Foundation, Inc.
Copyright (C) 2013-2018 Free Software Foundation, Inc.
Written by Ian Lance Taylor, Google.
Redistribution and use in source and binary forms, with or without
......
backtrace.c
/* backtrace.c -- Entry point for stack backtrace library.
Copyright (C) 2012-2016 Free Software Foundation, Inc.
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
......
backtrace.h
/* backtrace.h -- Public header file for stack backtrace library.
Copyright (C) 2012-2016 Free Software Foundation, Inc.
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
......
btest.c
/* btest.c -- Test for libbacktrace library
Copyright (C) 2012-2016 Free Software Foundation, Inc.
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
......@@ -38,246 +38,12 @@ POSSIBILITY OF SUCH DAMAGE. */
#include <stdlib.h>
#include <string.h>
#include "filenames.h"
#include "backtrace.h"
#include "backtrace-supported.h"
/* Portable attribute syntax. Actually some of these tests probably
won't work if the attributes are not recognized. */
#ifndef GCC_VERSION
# define GCC_VERSION (__GNUC__ * 1000 + __GNUC_MINOR__)
#endif
#if (GCC_VERSION < 2007)
# define __attribute__(x)
#endif
#ifndef ATTRIBUTE_UNUSED
# define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
#endif
#if defined(__MSDOS__) || defined(_WIN32) || defined(__OS2__) || defined (__CYGWIN__)
# define IS_DIR_SEPARATOR(c) ((c) == '/' || (c) == '\\')
#else
# define IS_DIR_SEPARATOR(c) ((c) == '/')
#endif
/* Used to collect backtrace info. */
struct info
{
char *filename;
int lineno;
char *function;
};
/* Passed to backtrace callback function. */
struct bdata
{
struct info *all;
size_t index;
size_t max;
int failed;
};
/* Passed to backtrace_simple callback function. */
struct sdata
{
uintptr_t *addrs;
size_t index;
size_t max;
int failed;
};
/* Passed to backtrace_syminfo callback function. */
struct symdata
{
const char *name;
uintptr_t val, size;
int failed;
};
/* The backtrace state. */
static void *state;
/* The number of failures. */
static int failures;
/* Return the base name in a path. */
static const char *
base (const char *p)
{
const char *last;
const char *s;
last = NULL;
for (s = p; *s != '\0'; ++s)
{
if (IS_DIR_SEPARATOR (*s))
last = s + 1;
}
return last != NULL ? last : p;
}
/* Check an entry in a struct info array. */
static void
check (const char *name, int index, const struct info *all, int want_lineno,
const char *want_function, int *failed)
{
if (*failed)
return;
if (all[index].filename == NULL || all[index].function == NULL)
{
fprintf (stderr, "%s: [%d]: missing file name or function name\n",
name, index);
*failed = 1;
return;
}
if (strcmp (base (all[index].filename), "btest.c") != 0)
{
fprintf (stderr, "%s: [%d]: got %s expected test.c\n", name, index,
all[index].filename);
*failed = 1;
}
if (all[index].lineno != want_lineno)
{
fprintf (stderr, "%s: [%d]: got %d expected %d\n", name, index,
all[index].lineno, want_lineno);
*failed = 1;
}
if (strcmp (all[index].function, want_function) != 0)
{
fprintf (stderr, "%s: [%d]: got %s expected %s\n", name, index,
all[index].function, want_function);
*failed = 1;
}
}
/* The backtrace callback function. */
static int
callback_one (void *vdata, uintptr_t pc ATTRIBUTE_UNUSED,
const char *filename, int lineno, const char *function)
{
struct bdata *data = (struct bdata *) vdata;
struct info *p;
if (data->index >= data->max)
{
fprintf (stderr, "callback_one: callback called too many times\n");
data->failed = 1;
return 1;
}
p = &data->all[data->index];
if (filename == NULL)
p->filename = NULL;
else
{
p->filename = strdup (filename);
assert (p->filename != NULL);
}
p->lineno = lineno;
if (function == NULL)
p->function = NULL;
else
{
p->function = strdup (function);
assert (p->function != NULL);
}
++data->index;
return 0;
}
/* An error callback passed to backtrace. */
static void
error_callback_one (void *vdata, const char *msg, int errnum)
{
struct bdata *data = (struct bdata *) vdata;
fprintf (stderr, "%s", msg);
if (errnum > 0)
fprintf (stderr, ": %s", strerror (errnum));
fprintf (stderr, "\n");
data->failed = 1;
}
/* The backtrace_simple callback function. */
static int
callback_two (void *vdata, uintptr_t pc)
{
struct sdata *data = (struct sdata *) vdata;
if (data->index >= data->max)
{
fprintf (stderr, "callback_two: callback called too many times\n");
data->failed = 1;
return 1;
}
data->addrs[data->index] = pc;
++data->index;
return 0;
}
/* An error callback passed to backtrace_simple. */
static void
error_callback_two (void *vdata, const char *msg, int errnum)
{
struct sdata *data = (struct sdata *) vdata;
fprintf (stderr, "%s", msg);
if (errnum > 0)
fprintf (stderr, ": %s", strerror (errnum));
fprintf (stderr, "\n");
data->failed = 1;
}
/* The backtrace_syminfo callback function. */
static void
callback_three (void *vdata, uintptr_t pc ATTRIBUTE_UNUSED,
const char *symname, uintptr_t symval,
uintptr_t symsize)
{
struct symdata *data = (struct symdata *) vdata;
if (symname == NULL)
data->name = NULL;
else
{
data->name = strdup (symname);
assert (data->name != NULL);
}
data->val = symval;
data->size = symsize;
}
/* The backtrace_syminfo error callback function. */
static void
error_callback_three (void *vdata, const char *msg, int errnum)
{
struct symdata *data = (struct symdata *) vdata;
fprintf (stderr, "%s", msg);
if (errnum > 0)
fprintf (stderr, ": %s", strerror (errnum));
fprintf (stderr, "\n");
data->failed = 1;
}
#include "testlib.h"
/* Test the backtrace function with non-inlined functions. */
......@@ -329,9 +95,9 @@ f3 (int f1line, int f2line)
data.failed = 1;
}
check ("test1", 0, all, f3line, "f3", &data.failed);
check ("test1", 1, all, f2line, "f2", &data.failed);
check ("test1", 2, all, f1line, "test1", &data.failed);
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");
......@@ -381,9 +147,9 @@ f13 (int f1line, int f2line)
data.failed = 1;
}
check ("test2", 0, all, f3line, "f13", &data.failed);
check ("test2", 1, all, f2line, "f12", &data.failed);
check ("test2", 2, all, f1line, "test2", &data.failed);
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");
......@@ -466,9 +232,9 @@ f23 (int f1line, int f2line)
}
}
check ("test3", 0, all, f3line, "f23", &bdata.failed);
check ("test3", 1, all, f2line, "f22", &bdata.failed);
check ("test3", 2, all, f1line, "test3", &bdata.failed);
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;
......@@ -604,9 +370,9 @@ f33 (int f1line, int f2line)
bdata.failed = 1;
}
check ("test4", 0, all, f3line, "f33", &bdata.failed);
check ("test4", 1, all, f2line, "f32", &bdata.failed);
check ("test4", 2, all, f1line, "test4", &bdata.failed);
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;
......@@ -620,7 +386,7 @@ f33 (int f1line, int f2line)
return failures;
}
#if BACKTRACE_SUPPORTS_DATA
static int test5 (void) __attribute__ ((unused));
int global = 1;
......@@ -690,19 +456,6 @@ test5 (void)
return failures;
}
#endif /* BACKTRACE_SUPPORTS_DATA */
static void
error_callback_create (void *data ATTRIBUTE_UNUSED, const char *msg,
int errnum)
{
fprintf (stderr, "%s", msg);
if (errnum > 0)
fprintf (stderr, ": %s", strerror (errnum));
fprintf (stderr, "\n");
exit (EXIT_FAILURE);
}
/* Run all the tests. */
int
......
configure
This source diff could not be displayed because it is too large. You can view the blob instead.
configure.ac
# configure.ac -- Backtrace configure script.
# Copyright (C) 2012-2016 Free Software Foundation, Inc.
# Copyright (C) 2012-2018 Free Software Foundation, Inc.
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
......@@ -83,6 +83,8 @@ esac
LT_INIT
AM_PROG_LIBTOOL
AC_SYS_LARGEFILE
backtrace_supported=yes
if test -n "${with_target_subdir}"; then
......@@ -232,6 +234,9 @@ elf*) FORMAT_FILE="elf.lo" ;;
pecoff) FORMAT_FILE="pecoff.lo"
backtrace_supports_data=no
;;
xcoff*) FORMAT_FILE="xcoff.lo"
backtrace_supports_data=no
;;
*) AC_MSG_WARN([could not determine output file type])
FORMAT_FILE="unknown.lo"
backtrace_supported=no
......@@ -248,6 +253,15 @@ elf64) elfsize=64 ;;
esac
AC_DEFINE_UNQUOTED([BACKTRACE_ELF_SIZE], [$elfsize], [ELF size: 32 or 64])
# XCOFF defines.
xcoffsize=
case "$libbacktrace_cv_sys_filetype" in
xcoff32) xcoffsize=32 ;;
xcoff64) xcoffsize=64 ;;
*) xcoffsize=unused
esac
AC_DEFINE_UNQUOTED([BACKTRACE_XCOFF_SIZE], [$xcoffsize], [XCOFF size: 32 or 64])
BACKTRACE_SUPPORTED=0
if test "$backtrace_supported" = "yes"; then
BACKTRACE_SUPPORTED=1
......@@ -324,6 +338,24 @@ if test "$have_dl_iterate_phdr" = "yes"; then
AC_DEFINE(HAVE_DL_ITERATE_PHDR, 1, [Define if dl_iterate_phdr is available.])
fi
# Check for loadquery.
AC_CHECK_HEADERS(sys/ldr.h)
if test "$ac_cv_header_sys_ldr_h" = "no"; then
have_loadquery=no
else
if test -n "${with_target_subdir}"; then
# When built as a GCC target library, we can't do a link test.
AC_EGREP_HEADER([loadquery], [sys/ldr.h], [have_loadquery=yes],
[have_loadquery=no])
else
AC_CHECK_FUNC([loadquery], [have_loadquery=yes],
[have_loadquery=no])
fi
fi
if test "$have_loadquery" = "yes"; then
AC_DEFINE(HAVE_LOADQUERY, 1, [Define if AIX loadquery is available.])
fi
# Check for the fcntl function.
if test -n "${with_target_subdir}"; then
case "${host}" in
......@@ -340,6 +372,7 @@ if test "$have_fcntl" = "yes"; then
fi
AC_CHECK_DECLS(strnlen)
AC_CHECK_FUNCS(lstat readlink)
# Check for getexecname function.
if test -n "${with_target_subdir}"; then
......@@ -354,6 +387,69 @@ if test "$have_getexecname" = "yes"; then
AC_DEFINE(HAVE_GETEXECNAME, 1, [Define if getexecname is available.])
fi
# Check for the clock_gettime function.
AC_CHECK_FUNCS(clock_gettime)
clock_gettime_link=
# At least for glibc, clock_gettime is in librt. But don't
# pull that in if it still doesn't give us the function we want. This
# test is copied from libgomp, and modified to not link in -lrt as
# we're using this for test timing only.
if test "$ac_cv_func_clock_gettime" = no; then
AC_CHECK_LIB(rt, clock_gettime,
[CLOCK_GETTIME_LINK=-lrt
AC_DEFINE(HAVE_CLOCK_GETTIME, 1,
[Define to 1 if you have the `clock_gettime' function.])])
fi
AC_SUBST(CLOCK_GETTIME_LINK)
dnl Test whether the compiler supports the -pthread option.
AC_CACHE_CHECK([whether -pthread is supported],
[libgo_cv_lib_pthread],
[CFLAGS_hold=$CFLAGS
CFLAGS="$CFLAGS -pthread"
AC_COMPILE_IFELSE([[int i;]],
[libgo_cv_lib_pthread=yes],
[libgo_cv_lib_pthread=no])
CFLAGS=$CFLAGS_hold])
PTHREAD_CFLAGS=
if test "$libgo_cv_lib_pthread" = yes; then
PTHREAD_CFLAGS=-pthread
fi
AC_SUBST(PTHREAD_CFLAGS)
AM_CONDITIONAL(HAVE_PTHREAD, test "$libgo_cv_lib_pthread" = yes)
AC_CHECK_LIB([z], [compress], [])
if test $ac_cv_lib_z_compress = "yes"; then
AC_DEFINE(HAVE_ZLIB, 1, [Define if -lz is available.])
fi
AM_CONDITIONAL(HAVE_ZLIB, test "$ac_cv_lib_z_compress" = yes)
dnl Test whether the linker supports the --compress_debug_sections option.
AC_CACHE_CHECK([whether --compress-debug-sections is supported],
[libgo_cv_ld_compress],
[LDFLAGS_hold=$LDFLAGS
LDFLAGS="$LDFLAGS -Wl,--compress-debug-sections=zlib-gnu"
AC_LINK_IFELSE([AC_LANG_PROGRAM(,)],
[libgo_cv_ld_compress=yes],
[libgo_cv_ld_compress=no])
LDFLAGS=$LDFLAGS_hold])
AM_CONDITIONAL(HAVE_COMPRESSED_DEBUG, test "$libgo_cv_ld_compress" = yes)
AC_ARG_VAR(OBJCOPY, [location of objcopy])
AC_CHECK_PROG(OBJCOPY, objcopy, objcopy,)
AC_CACHE_CHECK([whether objcopy supports debuglink],
[libbacktrace_cv_objcopy_debuglink],
[if test -n "${with_target_subdir}"; then
libbacktrace_cv_objcopy_debuglink=no
elif ${OBJCOPY} --add-gnu-debuglink=x /bin/ls /tmp/ls$$; then
rm -f /tmp/ls$$
libbacktrace_cv_objcopy_debuglink=yes
else
libbacktrace_cv_objcopy_debuglink=no
fi])
AM_CONDITIONAL(HAVE_OBJCOPY_DEBUGLINK, test "$libbacktrace_cv_objcopy_debuglink" = yes)
AC_CACHE_CHECK([whether tests can run],
[libbacktrace_cv_sys_native],
[AC_RUN_IFELSE([AC_LANG_PROGRAM([], [return 0;])],
......
dwarf.c
/* dwarf.c -- Get file/line information from DWARF for backtraces.
Copyright (C) 2012-2016 Free Software Foundation, Inc.
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
......@@ -1648,14 +1648,13 @@ add_line (struct backtrace_state *state, struct dwarf_data *ddata,
return 1;
}
/* Free the line header information. If FREE_FILENAMES is true we
free the file names themselves, otherwise we leave them, as there
may be line structures pointing to them. */
/* Free the line header information. */
static void
free_line_header (struct backtrace_state *state, struct line_header *hdr,
backtrace_error_callback error_callback, void *data)
{
if (hdr->dirs_count != 0)
backtrace_free (state, hdr->dirs, hdr->dirs_count * sizeof (const char *),
error_callback, data);
backtrace_free (state, hdr->filenames,
......@@ -1718,12 +1717,16 @@ read_line_header (struct backtrace_state *state, struct unit *u,
++hdr->dirs_count;
}
hdr->dirs = NULL;
if (hdr->dirs_count != 0)
{
hdr->dirs = ((const char **)
backtrace_alloc (state,
hdr->dirs_count * sizeof (const char *),
line_buf->error_callback, line_buf->data));
if (hdr->dirs == NULL)
return 0;
}
i = 0;
while (*hdr_buf.buf != '\0')
......
edtest.c 0 → 100644
/* edtest.c -- Test for libbacktrace storage allocation stress handling
Copyright (C) 2017-2018 Free Software Foundation, Inc.
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. */
#include "config.h"
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include "backtrace.h"
#include "backtrace-supported.h"
#include "internal.h"
#include "testlib.h"
static int test1 (void) __attribute__ ((noinline, unused));
static int test1 (void) __attribute__ ((noinline, unused));
extern int f2 (int);
extern int f3 (int, int);
static int
test1 (void)
{
/* Returning a value here and elsewhere avoids a tailcall which
would mess up the backtrace. */
return f2 (__LINE__) + 1;
}
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", "edtest.c", &data.failed);
check ("test1", 1, all, f2line, "f2", "edtest2_build.c", &data.failed);
check ("test1", 2, all, f1line, "test1", "edtest.c", &data.failed);
printf ("%s: backtrace_full alloc stress\n", data.failed ? "FAIL" : "PASS");
if (data.failed)
++failures;
return failures;
}
int
main (int argc ATTRIBUTE_UNUSED, char **argv ATTRIBUTE_UNUSED)
{
state = backtrace_create_state (argv[0], BACKTRACE_SUPPORTS_THREADS,
error_callback_create, NULL);
// Grab the storage allocation lock prior to doing anything interesting.
// The intent here is to insure that the backtrace_alloc code is forced
// to always call mmap() for new memory as opposed to reusing previously
// allocated memory from the free list. Doing things this way helps
// simulate what you might see in a multithreaded program in which there
// are racing calls to the allocator.
struct backtrace_state *state_internal =
(struct backtrace_state *) state;
state_internal->lock_alloc = 1;
// Kick off the test
test1();
exit (failures > 0 ? EXIT_FAILURE : EXIT_SUCCESS);
}
edtest2.c 0 → 100644
/* edtest2.c -- Test for libbacktrace storage allocation stress handling (p2)
Copyright (C) 2017-2018 Free Software Foundation, Inc.
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 file intentionally written without any #include's
*/
extern int f3(int, int);
extern int f2(int);
int f2(int x)
{
/* Returning a value here and elsewhere avoids a tailcall which
would mess up the backtrace. */
return f3(x, __LINE__) + 3;
}
fileline.c
/* fileline.c -- Get file and line number information in a backtrace.
Copyright (C) 2012-2016 Free Software Foundation, Inc.
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
......@@ -37,6 +37,7 @@ POSSIBILITY OF SUCH DAMAGE. */
#include <errno.h>
#include <fcntl.h>
#include <stdlib.h>
#include <unistd.h>
#include "backtrace.h"
#include "internal.h"
......@@ -57,6 +58,8 @@ fileline_initialize (struct backtrace_state *state,
int pass;
int called_error_callback;
int descriptor;
const char *filename;
char buf[64];
if (!state->threaded)
failed = state->fileline_initialization_failed;
......@@ -80,9 +83,8 @@ fileline_initialize (struct backtrace_state *state,
descriptor = -1;
called_error_callback = 0;
for (pass = 0; pass < 4; ++pass)
for (pass = 0; pass < 5; ++pass)
{
const char *filename;
int does_not_exist;
switch (pass)
......@@ -99,6 +101,11 @@ fileline_initialize (struct backtrace_state *state,
case 3:
filename = "/proc/curproc/file";
break;
case 4:
snprintf (buf, sizeof (buf), "/proc/%ld/object/a.out",
(long) getpid ());
filename = buf;
break;
default:
abort ();
}
......@@ -133,8 +140,8 @@ fileline_initialize (struct backtrace_state *state,
if (!failed)
{
if (!backtrace_initialize (state, descriptor, error_callback, data,
&fileline_fn))
if (!backtrace_initialize (state, filename, descriptor, error_callback,
data, &fileline_fn))
failed = 1;
}
......
filenames.h 0 → 100644
/* btest.c -- Filename header 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. */
#ifndef GCC_VERSION
# define GCC_VERSION (__GNUC__ * 1000 + __GNUC_MINOR__)
#endif
#if (GCC_VERSION < 2007)
# define __attribute__(x)
#endif
#ifndef ATTRIBUTE_UNUSED
# define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
#endif
#if defined(__MSDOS__) || defined(_WIN32) || defined(__OS2__) || defined (__CYGWIN__)
# define IS_DIR_SEPARATOR(c) ((c) == '/' || (c) == '\\')
#else
# define IS_DIR_SEPARATOR(c) ((c) == '/')
#endif
internal.h
/* internal.h -- Internal header file for stack backtrace library.
Copyright (C) 2012-2016 Free Software Foundation, Inc.
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
......@@ -268,6 +268,7 @@ extern int backtrace_vector_release (struct backtrace_state *state,
appropriate one. */
extern int backtrace_initialize (struct backtrace_state *state,
const char *filename,
int descriptor,
backtrace_error_callback error_callback,
void *data,
......@@ -291,4 +292,13 @@ extern int backtrace_dwarf_add (struct backtrace_state *state,
backtrace_error_callback error_callback,
void *data, fileline *fileline_fn);
/* A test-only hook for elf_uncompress_zdebug. */
extern int backtrace_uncompress_zdebug (struct backtrace_state *,
const unsigned char *compressed,
size_t compressed_size,
backtrace_error_callback, void *data,
unsigned char **uncompressed,
size_t *uncompressed_size);
#endif
ltmain.sh
This source diff could not be displayed because it is too large. You can view the blob instead.
mmap.c
/* mmap.c -- Memory allocation with mmap.
Copyright (C) 2012-2016 Free Software Foundation, Inc.
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
......
mmapio.c
/* mmapio.c -- File views using mmap.
Copyright (C) 2012-2016 Free Software Foundation, Inc.
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
......
move-if-change 0 → 100644
#!/bin/sh
# Like mv $1 $2, but if the files are the same, just delete $1.
# Status is zero if successful, nonzero otherwise.
VERSION='2012-01-06 07:23'; # UTC
# The definition above must lie within the first 8 lines in order
# for the Emacs time-stamp write hook (at end) to update it.
# If you change this file with Emacs, please let the write hook
# do its job. Otherwise, update this string manually.
# Copyright (C) 2002-2014 Free Software Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program 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 General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
usage="usage: $0 SOURCE DEST"
help="$usage
or: $0 OPTION
If SOURCE is different than DEST, then move it to DEST; else remove SOURCE.
--help display this help and exit
--version output version information and exit
The variable CMPPROG can be used to specify an alternative to 'cmp'.
Report bugs to <bug-gnulib@gnu.org>."
version=`expr "$VERSION" : '\([^ ]*\)'`
version="move-if-change (gnulib) $version
Copyright (C) 2011 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law."
cmpprog=${CMPPROG-cmp}
for arg
do
case $arg in
--help | --hel | --he | --h)
exec echo "$help" ;;
--version | --versio | --versi | --vers | --ver | --ve | --v)
exec echo "$version" ;;
--)
shift
break ;;
-*)
echo "$0: invalid option: $arg" >&2
exit 1 ;;
*)
break ;;
esac
done
test $# -eq 2 || { echo "$0: $usage" >&2; exit 1; }
if test -r "$2" && $cmpprog -- "$1" "$2" >/dev/null; then
rm -f -- "$1"
else
if mv -f -- "$1" "$2"; then :; else
# Ignore failure due to a concurrent move-if-change.
test -r "$2" && $cmpprog -- "$1" "$2" >/dev/null && rm -f -- "$1"
fi
fi
## Local Variables:
## eval: (add-hook 'write-file-hooks 'time-stamp)
## time-stamp-start: "VERSION='"
## time-stamp-format: "%:y-%02m-%02d %02H:%02M"
## time-stamp-time-zone: "UTC"
## time-stamp-end: "'; # UTC"
## End:
nounwind.c
/* backtrace.c -- Entry point for stack backtrace library.
Copyright (C) 2012-2016 Free Software Foundation, Inc.
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
......
pecoff.c
/* pecoff.c -- Get debug data from a PE/COFF file for backtraces.
Copyright (C) 2015-2016 Free Software Foundation, Inc.
/* pecoff.c -- Get debug data from a PE/COFFF file for backtraces.
Copyright (C) 2015-2018 Free Software Foundation, Inc.
Adapted from elf.c by Tristan Gingold, AdaCore.
Redistribution and use in source and binary forms, with or without
......@@ -890,7 +890,8 @@ coff_add (struct backtrace_state *state, int descriptor,
sections. */
int
backtrace_initialize (struct backtrace_state *state, int descriptor,
backtrace_initialize (struct backtrace_state *state,
const char *filename ATTRIBUTE_UNUSED, int descriptor,
backtrace_error_callback error_callback,
void *data, fileline *fileline_fn)
{
......
posix.c
/* posix.c -- POSIX file I/O routines for the backtrace library.
Copyright (C) 2012-2016 Free Software Foundation, Inc.
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
......
print.c
/* print.c -- Print the current backtrace.
Copyright (C) 2012-2016 Free Software Foundation, Inc.
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
......
read.c
/* read.c -- File views without mmap.
Copyright (C) 2012-2016 Free Software Foundation, Inc.
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
......
simple.c
/* simple.c -- The backtrace_simple function.
Copyright (C) 2012-2016 Free Software Foundation, Inc.
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
......
sort.c
/* sort.c -- Sort without allocating memory
Copyright (C) 2012-2016 Free Software Foundation, Inc.
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
......
state.c
/* state.c -- Create the backtrace state.
Copyright (C) 2012-2016 Free Software Foundation, Inc.
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
......
stest.c
/* stest.c -- Test for libbacktrace internal sort function
Copyright (C) 2012-2016 Free Software Foundation, Inc.
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
......
testlib.c 0 → 100644
/* testlib.c -- test functions 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. */
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "filenames.h"
#include "backtrace.h"
#include "testlib.h"
/* The backtrace state. */
void *state;
/* The number of failures. */
int failures;
/* Return the base name in a path. */
const char *
base (const char *p)
{
const char *last;
const char *s;
last = NULL;
for (s = p; *s != '\0'; ++s)
{
if (IS_DIR_SEPARATOR (*s))
last = s + 1;
}
return last != NULL ? last : p;
}
/* Check an entry in a struct info array. */
void
check (const char *name, int index, const struct info *all, int want_lineno,
const char *want_function, const char *want_file, int *failed)
{
if (*failed)
return;
if (all[index].filename == NULL || all[index].function == NULL)
{
fprintf (stderr, "%s: [%d]: missing file name or function name\n",
name, index);
*failed = 1;
return;
}
if (strcmp (base (all[index].filename), want_file) != 0)
{
fprintf (stderr, "%s: [%d]: got %s expected %s\n", name, index,
all[index].filename, want_file);
*failed = 1;
}
if (all[index].lineno != want_lineno)
{
fprintf (stderr, "%s: [%d]: got %d expected %d\n", name, index,
all[index].lineno, want_lineno);
*failed = 1;
}
if (strcmp (all[index].function, want_function) != 0)
{
fprintf (stderr, "%s: [%d]: got %s expected %s\n", name, index,
all[index].function, want_function);
*failed = 1;
}
}
/* The backtrace callback function. */
int
callback_one (void *vdata, uintptr_t pc ATTRIBUTE_UNUSED,
const char *filename, int lineno, const char *function)
{
struct bdata *data = (struct bdata *) vdata;
struct info *p;
if (data->index >= data->max)
{
fprintf (stderr, "callback_one: callback called too many times\n");
data->failed = 1;
return 1;
}
p = &data->all[data->index];
if (filename == NULL)
p->filename = NULL;
else
{
p->filename = strdup (filename);
assert (p->filename != NULL);
}
p->lineno = lineno;
if (function == NULL)
p->function = NULL;
else
{
p->function = strdup (function);
assert (p->function != NULL);
}
++data->index;
return 0;
}
/* An error callback passed to backtrace. */
void
error_callback_one (void *vdata, const char *msg, int errnum)
{
struct bdata *data = (struct bdata *) vdata;
fprintf (stderr, "%s", msg);
if (errnum > 0)
fprintf (stderr, ": %s", strerror (errnum));
fprintf (stderr, "\n");
data->failed = 1;
}
/* The backtrace_simple callback function. */
int
callback_two (void *vdata, uintptr_t pc)
{
struct sdata *data = (struct sdata *) vdata;
if (data->index >= data->max)
{
fprintf (stderr, "callback_two: callback called too many times\n");
data->failed = 1;
return 1;
}
data->addrs[data->index] = pc;
++data->index;
return 0;
}
/* An error callback passed to backtrace_simple. */
void
error_callback_two (void *vdata, const char *msg, int errnum)
{
struct sdata *data = (struct sdata *) vdata;
fprintf (stderr, "%s", msg);
if (errnum > 0)
fprintf (stderr, ": %s", strerror (errnum));
fprintf (stderr, "\n");
data->failed = 1;
}
/* The backtrace_syminfo callback function. */
void
callback_three (void *vdata, uintptr_t pc ATTRIBUTE_UNUSED,
const char *symname, uintptr_t symval,
uintptr_t symsize)
{
struct symdata *data = (struct symdata *) vdata;
if (symname == NULL)
data->name = NULL;
else
{
data->name = strdup (symname);
assert (data->name != NULL);
}
data->val = symval;
data->size = symsize;
}
/* The backtrace_syminfo error callback function. */
void
error_callback_three (void *vdata, const char *msg, int errnum)
{
struct symdata *data = (struct symdata *) vdata;
fprintf (stderr, "%s", msg);
if (errnum > 0)
fprintf (stderr, ": %s", strerror (errnum));
fprintf (stderr, "\n");
data->failed = 1;
}
/* The backtrace_create_state error callback function. */
void
error_callback_create (void *data ATTRIBUTE_UNUSED, const char *msg,
int errnum)
{
fprintf (stderr, "%s", msg);
if (errnum > 0)
fprintf (stderr, ": %s", strerror (errnum));
fprintf (stderr, "\n");
exit (EXIT_FAILURE);
}
testlib.h 0 → 100644
/* testlib.h -- Header for test functions 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. */
#ifndef LIBBACKTRACE_TESTLIB_H
#define LIBBACKTRACE_TESTLIB_H
/* Portable attribute syntax. Actually some of these tests probably
won't work if the attributes are not recognized. */
#ifndef GCC_VERSION
# define GCC_VERSION (__GNUC__ * 1000 + __GNUC_MINOR__)
#endif
#if (GCC_VERSION < 2007)
# define __attribute__(x)
#endif
#ifndef ATTRIBUTE_UNUSED
# define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
#endif
/* Used to collect backtrace info. */
struct info
{
char *filename;
int lineno;
char *function;
};
/* Passed to backtrace callback function. */
struct bdata
{
struct info *all;
size_t index;
size_t max;
int failed;
};
/* Passed to backtrace_simple callback function. */
struct sdata
{
uintptr_t *addrs;
size_t index;
size_t max;
int failed;
};
/* Passed to backtrace_syminfo callback function. */
struct symdata
{
const char *name;
uintptr_t val, size;
int failed;
};
/* The backtrace state. */
extern void *state;
/* The number of failures. */
extern int failures;
extern const char *base (const char *p);
extern void check (const char *name, int index, const struct info *all,
int want_lineno, const char *want_function,
const char *want_file, int *failed);
extern int callback_one (void *, uintptr_t, const char *, int, const char *);
extern void error_callback_one (void *, const char *, int);
extern int callback_two (void *, uintptr_t);
extern void error_callback_two (void *, const char *, int);
extern void callback_three (void *, uintptr_t, const char *, uintptr_t,
uintptr_t);
extern void error_callback_three (void *, const char *, int);
extern void error_callback_create (void *, const char *, int);
#endif /* !defined(LIBBACKTRACE_TESTLIB_H) */
ttest.c 0 → 100644
/* ttest.c -- Test for libbacktrace library
Copyright (C) 2017-2018 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. */
/* Test using the libbacktrace library from multiple threads. */
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <pthread.h>
#include "filenames.h"
#include "backtrace.h"
#include "backtrace-supported.h"
#include "testlib.h"
static int f2 (int) __attribute__ ((noinline));
static int f3 (int, int) __attribute__ ((noinline));
/* Test that a simple backtrace works. This is called via
pthread_create. It returns the number of failures, as void *. */
static void *
test1_thread (void *arg ATTRIBUTE_UNUSED)
{
/* Returning a value here and elsewhere avoids a tailcall which
would mess up the backtrace. */
return (void *) (uintptr_t) (f2 (__LINE__) - 2);
}
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", "ttest.c", &data.failed);
check ("test1", 1, all, f2line, "f2", "ttest.c", &data.failed);
check ("test1", 2, all, f1line, "test1_thread", "ttest.c", &data.failed);
return data.failed;
}
/* Run the test with 10 threads simultaneously. */
#define THREAD_COUNT 10
static void test1 (void) __attribute__ ((unused));
static void
test1 (void)
{
pthread_t atid[THREAD_COUNT];
int i;
int errnum;
int this_fail;
void *ret;
for (i = 0; i < THREAD_COUNT; i++)
{
errnum = pthread_create (&atid[i], NULL, test1_thread, NULL);
if (errnum != 0)
{
fprintf (stderr, "pthread_create %d: %s\n", i, strerror (errnum));
exit (EXIT_FAILURE);
}
}
this_fail = 0;
for (i = 0; i < THREAD_COUNT; i++)
{
errnum = pthread_join (atid[i], &ret);
if (errnum != 0)
{
fprintf (stderr, "pthread_join %d: %s\n", i, strerror (errnum));
exit (EXIT_FAILURE);
}
this_fail += (int) (uintptr_t) ret;
}
printf ("%s: threaded backtrace_full noinline\n", this_fail > 0 ? "FAIL" : "PASS");
failures += this_fail;
}
int
main (int argc ATTRIBUTE_UNUSED, char **argv)
{
state = backtrace_create_state (argv[0], BACKTRACE_SUPPORTS_THREADS,
error_callback_create, NULL);
#if BACKTRACE_SUPPORTED
#if BACKTRACE_SUPPORTS_THREADS
test1 ();
#endif
#endif
exit (failures ? EXIT_FAILURE : EXIT_SUCCESS);
}
unknown.c
/* unknown.c -- used when backtrace configury does not know file format.
Copyright (C) 2012-2016 Free Software Foundation, Inc.
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
......@@ -54,6 +54,7 @@ unknown_fileline (struct backtrace_state *state ATTRIBUTE_UNUSED,
int
backtrace_initialize (struct backtrace_state *state ATTRIBUTE_UNUSED,
const char *filename ATTRIBUTE_UNUSED,
int descriptor ATTRIBUTE_UNUSED,
backtrace_error_callback error_callback ATTRIBUTE_UNUSED,
void *data ATTRIBUTE_UNUSED, fileline *fileline_fn)
......
xcoff.c 0 → 100644
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ztest.c 0 → 100644
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