| 1 | /* Restartable Sequences single-threaded tests. |
|---|---|
| 2 | Copyright (C) 2021-2024 Free Software Foundation, Inc. |
| 3 | |
| 4 | The GNU C Library is free software; you can redistribute it and/or |
| 5 | modify it under the terms of the GNU Lesser General Public |
| 6 | License as published by the Free Software Foundation; either |
| 7 | version 2.1 of the License, or (at your option) any later version. |
| 8 | |
| 9 | The GNU C Library is distributed in the hope that it will be useful, |
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 12 | Lesser General Public License for more details. |
| 13 | |
| 14 | You should have received a copy of the GNU Lesser General Public |
| 15 | License along with the GNU C Library; if not, see |
| 16 | <https://www.gnu.org/licenses/>. */ |
| 17 | |
| 18 | /* These tests validate that rseq is registered from main in an executable |
| 19 | not linked against libpthread. */ |
| 20 | |
| 21 | #include <support/check.h> |
| 22 | #include <stdio.h> |
| 23 | #include <sys/rseq.h> |
| 24 | #include <unistd.h> |
| 25 | |
| 26 | #ifdef RSEQ_SIG |
| 27 | # include <errno.h> |
| 28 | # include <error.h> |
| 29 | # include <stdlib.h> |
| 30 | # include <string.h> |
| 31 | # include <syscall.h> |
| 32 | # include <thread_pointer.h> |
| 33 | # include <tls.h> |
| 34 | # include "tst-rseq.h" |
| 35 | |
| 36 | static void |
| 37 | do_rseq_main_test (void) |
| 38 | { |
| 39 | struct pthread *pd = THREAD_SELF; |
| 40 | |
| 41 | TEST_VERIFY_EXIT (rseq_thread_registered ()); |
| 42 | TEST_COMPARE (__rseq_flags, 0); |
| 43 | TEST_VERIFY ((char *) __thread_pointer () + __rseq_offset |
| 44 | == (char *) &pd->rseq_area); |
| 45 | TEST_COMPARE (__rseq_size, sizeof (pd->rseq_area)); |
| 46 | } |
| 47 | |
| 48 | static void |
| 49 | do_rseq_test (void) |
| 50 | { |
| 51 | if (!rseq_available ()) |
| 52 | { |
| 53 | FAIL_UNSUPPORTED ("kernel does not support rseq, skipping test"); |
| 54 | } |
| 55 | do_rseq_main_test (); |
| 56 | } |
| 57 | #else /* RSEQ_SIG */ |
| 58 | static void |
| 59 | do_rseq_test (void) |
| 60 | { |
| 61 | FAIL_UNSUPPORTED ("glibc does not define RSEQ_SIG, skipping test"); |
| 62 | } |
| 63 | #endif /* RSEQ_SIG */ |
| 64 | |
| 65 | static int |
| 66 | do_test (void) |
| 67 | { |
| 68 | do_rseq_test (); |
| 69 | return 0; |
| 70 | } |
| 71 | |
| 72 | #include <support/test-driver.c> |
| 73 |