diff options
Diffstat (limited to 'libsframe/testsuite/libsframe.stacktrace/stacktrace-fp-attr-2.c')
-rw-r--r-- | libsframe/testsuite/libsframe.stacktrace/stacktrace-fp-attr-2.c | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/libsframe/testsuite/libsframe.stacktrace/stacktrace-fp-attr-2.c b/libsframe/testsuite/libsframe.stacktrace/stacktrace-fp-attr-2.c new file mode 100644 index 0000000..0a87d27 --- /dev/null +++ b/libsframe/testsuite/libsframe.stacktrace/stacktrace-fp-attr-2.c @@ -0,0 +1,109 @@ +/* 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 a revised version of gdb/testsuite/gdb.base/backtrace.c. */ + +#ifdef __has_attribute +# if !__has_attribute (noclone) +# define ATTRIBUTE_NOCLONE +# endif +#endif +#ifndef ATTRIBUTE_NOCLONE +# define ATTRIBUTE_NOCLONE __attribute__((noclone)) +#endif + +#include <execinfo.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include "sframe-stacktrace-api.h" + +#define BT_BUF_SIZE 100 + +#define BT_EXPECTED_NPTRS 5 + +/* Expected funclist. */ +static const char *const func_list[] = +{ + "show_bt", + "baz", + "bar", + "foo", + "main" +}; + +void __attribute__((__noinline__,__optimize__("no-omit-frame-pointer"))) ATTRIBUTE_NOCLONE +show_bt () +{ + 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 (err) + { + printf ("SFrame error: %s (%d)\n", sframe_bt_errmsg (err), nptrs); + return; + } + if (nptrs != BT_EXPECTED_NPTRS) + { + printf ("Backtace nptrs mismatch: expected = %d, generated = %d \n", + BT_EXPECTED_NPTRS, 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 no-omit-frame-pointer attr\n", + (j == nptrs) ? "PASS" : "FAIL"); +} + +int __attribute__((__noinline__)) ATTRIBUTE_NOCLONE +baz () +{ + show_bt (); + return 0; +} + +int __attribute__((__noinline__)) ATTRIBUTE_NOCLONE +bar () +{ + return baz (); +} + +int __attribute__((__noinline__)) ATTRIBUTE_NOCLONE +foo () +{ + return bar (); +} + +int __attribute__((__noinline__)) ATTRIBUTE_NOCLONE +main () +{ + return foo (); +} |