diff options
Diffstat (limited to 'libsframe/testsuite/libsframe.stacktrace/stacktrace-3.c')
-rw-r--r-- | libsframe/testsuite/libsframe.stacktrace/stacktrace-3.c | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/libsframe/testsuite/libsframe.stacktrace/stacktrace-3.c b/libsframe/testsuite/libsframe.stacktrace/stacktrace-3.c new file mode 100644 index 0000000..3d54096 --- /dev/null +++ b/libsframe/testsuite/libsframe.stacktrace/stacktrace-3.c @@ -0,0 +1,127 @@ +/* Copyright (C) 2022 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/>. */ + +/* This is the revised version of the example in "man backtrace". */ + +#include <execinfo.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include "sframe-stacktrace-api.h" + +#ifdef __has_attribute +# if !__has_attribute (noclone) +# define ATTRIBUTE_NOCLONE +# endif +#endif +#ifndef ATTRIBUTE_NOCLONE +# define ATTRIBUTE_NOCLONE __attribute__((noclone)) +#endif + +#define BT_BUF_SIZE 100 + +/* funclist */ +static const char *const func_list[] = +{ + "myfunc3", + "()", + "myfunc", + "myfunc", + "myfunc", + "main" +}; + +void myfunc3 (void) +{ + void *buffer[BT_BUF_SIZE]; + int j, nptrs, err; + char **strings; + + /* Call the unwinder to get an array of return addresses. */ + nptrs = sframe_stacktrace (buffer, BT_BUF_SIZE, &err); + if (nptrs == -1 || nptrs != 6) + { + printf ("SFrame error: %s (%d)\n", sframe_bt_errmsg (err), nptrs); + return; + } + + /* Get these addresses symbolically. */ + strings = backtrace_symbols (buffer, nptrs); + if (strings == NULL) { + printf ("Error in backtrace_symbols"); + return; + } + + /* Verify the results. */ + for (j = 0; j < nptrs; j++) + if (!strstr (strings[j], func_list[j])) + break; + + free(strings); + + printf ("%s: stacktrace with static function\n", + (j == nptrs) ? "PASS" : "FAIL"); +} + +static void __attribute__((__noinline__)) ATTRIBUTE_NOCLONE +/* "static" means don't export the symbol. */ +myfunc2 (void) +{ + void *buffer[BT_BUF_SIZE]; + int nptrs, err; + + /* Call the unwinder to get an array of return addresses. */ + nptrs = sframe_stacktrace (buffer, BT_BUF_SIZE, &err); + if (nptrs == -1) + { + printf ("SFrame error: %s (%d)\n", sframe_bt_errmsg (err), nptrs); + return; + } + + myfunc3 (); +} + +void __attribute__((__noinline__)) ATTRIBUTE_NOCLONE +myfunc (int ncalls) +{ + void *buffer[BT_BUF_SIZE]; + int nptrs, err; + + /* Call the unwinder to get an array of return addresses. */ + nptrs = sframe_stacktrace (buffer, BT_BUF_SIZE, &err); + if (nptrs == -1) + { + printf ("SFrame error: %s (%d)\n", sframe_bt_errmsg (err), nptrs); + return; + } + + if (ncalls > 1) + myfunc (ncalls - 1); + else + myfunc2 (); +} + +int +main (int argc, char *argv[]) +{ + int cnt; + if (argc != 2) { + cnt = 3; + } + else + cnt = atoi(argv[1]); + myfunc (cnt); + exit (EXIT_SUCCESS); +} |