| /* testlib.c -- test functions for libbacktrace library |
| Copyright (C) 2012-2020 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); |
| } |