| 1 | /* Test that pthread_kill succeeds for an exited thread. |
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| 2 | Copyright (C) 2021-2024 Free Software Foundation, Inc. |
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| 3 | This file is part of the GNU C Library. |
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| 4 | |
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| 5 | The GNU C Library is free software; you can redistribute it and/or |
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| 6 | modify it under the terms of the GNU Lesser General Public |
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| 7 | License as published by the Free Software Foundation; either |
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| 8 | version 2.1 of the License, or (at your option) any later version. |
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| 9 | |
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| 10 | The GNU C Library is distributed in the hope that it will be useful, |
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 13 | Lesser General Public License for more details. |
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| 14 | |
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| 15 | You should have received a copy of the GNU Lesser General Public |
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| 16 | License along with the GNU C Library; if not, see |
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| 17 | <https://www.gnu.org/licenses/>. */ |
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| 18 | |
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| 19 | /* This test verifies that the default pthread_kill returns 0 (and not |
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| 20 | ESRCH) for a thread that has exited on the kernel side. */ |
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| 21 | |
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| 22 | #include <errno.h> |
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| 23 | #include <pthread.h> |
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| 24 | #include <shlib-compat.h> |
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| 25 | #include <signal.h> |
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| 26 | #include <stddef.h> |
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| 27 | #include <support/check.h> |
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| 28 | #include <support/support.h> |
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| 29 | #include <support/xthread.h> |
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| 30 | |
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| 31 | static void * |
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| 32 | noop_thread (void *closure) |
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| 33 | { |
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| 34 | return NULL; |
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| 35 | } |
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| 36 | |
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| 37 | #if TEST_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_34) && PTHREAD_IN_LIBC |
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| 38 | extern __typeof (pthread_kill) compat_pthread_kill; |
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| 39 | compat_symbol_reference (libpthread, compat_pthread_kill, pthread_kill, |
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| 40 | GLIBC_2_0); |
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| 41 | #endif |
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| 42 | |
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| 43 | static int |
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| 44 | do_test (void) |
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| 45 | { |
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| 46 | pthread_t thr = xpthread_create (NULL, thread_func: noop_thread, NULL); |
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| 47 | |
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| 48 | support_wait_for_thread_exit (); |
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| 49 | |
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| 50 | /* NB: Always uses the default symbol due to separate compilation. */ |
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| 51 | xpthread_kill (thr, SIGUSR1); |
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| 52 | |
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| 53 | #if TEST_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_34) && PTHREAD_IN_LIBC |
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| 54 | /* Old binaries need the non-conforming ESRCH error code. */ |
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| 55 | TEST_COMPARE (compat_pthread_kill (thr, SIGUSR1), ESRCH); |
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| 56 | #endif |
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| 57 | |
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| 58 | xpthread_join (thr); |
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| 59 | |
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| 60 | return 0; |
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| 61 | } |
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| 62 | |
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| 63 | #include <support/test-driver.c> |
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| 64 | |
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