2 * This file is part of rt_sigprocmask strace test.
4 * Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
5 * Copyright (c) 2016-2018 The strace developers.
8 * SPDX-License-Identifier: GPL-2.0-or-later
12 #include <asm/unistd.h>
14 #ifdef __NR_rt_sigprocmask
23 k_sigprocmask(const unsigned long how, void *const new_set,
24 void *const old_set, const unsigned long size)
26 return syscall(__NR_rt_sigprocmask, how, new_set, old_set, size);
30 iterate(const char *const text, void *set, void *old, unsigned int size)
33 if (k_sigprocmask(SIG_UNBLOCK, set, old, size)) {
34 if (size < sizeof(long))
35 tprintf("rt_sigprocmask(SIG_UNBLOCK"
36 ", %p, %p, %u) = -1 EINVAL (%m)\n",
39 tprintf("rt_sigprocmask(SIG_UNBLOCK"
40 ", %s, %p, %u) = -1 EINVAL (%m)\n",
43 tprintf("rt_sigprocmask(SIG_UNBLOCK, %s, [], %u)"
44 " = 0\n", text, size);
59 const unsigned int big_size = 1024 / 8;
60 unsigned int set_size;
62 for (set_size = big_size; set_size; set_size >>= 1) {
63 if (!k_sigprocmask(SIG_SETMASK, NULL, NULL, set_size))
65 tprintf("rt_sigprocmask(SIG_SETMASK, NULL, NULL, %u)"
66 " = -1 EINVAL (%m)\n", set_size);
69 perror_msg_and_fail("rt_sigprocmask");
70 tprintf("rt_sigprocmask(SIG_SETMASK, NULL, NULL, %u) = 0\n",
73 void *const k_set = tail_alloc(set_size);
74 void *const old_set = tail_alloc(set_size);
75 TAIL_ALLOC_OBJECT_CONST_PTR(sigset_t, libc_set);
77 memset(k_set, 0, set_size);
78 if (k_sigprocmask(SIG_SETMASK, k_set, NULL, set_size))
79 perror_msg_and_fail("rt_sigprocmask");
80 tprintf("rt_sigprocmask(SIG_SETMASK, [], NULL, %u) = 0\n", set_size);
82 if (k_sigprocmask(SIG_UNBLOCK, k_set - set_size, old_set, set_size))
83 perror_msg_and_fail("rt_sigprocmask");
84 tprintf("rt_sigprocmask(SIG_UNBLOCK, ~[], [], %u) = 0\n", set_size);
86 assert(k_sigprocmask(SIG_SETMASK, k_set - set_size,
87 old_set, set_size << 1) == -1);
88 tprintf("rt_sigprocmask(SIG_SETMASK, %p, %p, %u) = -1 EINVAL (%m)\n",
89 k_set - set_size, old_set, set_size << 1);
91 iterate("~[]", k_set - set_size, old_set, set_size >> 1);
93 sigemptyset(libc_set);
94 sigaddset(libc_set, SIGHUP);
95 memcpy(k_set, libc_set, set_size);
97 if (k_sigprocmask(SIG_BLOCK, k_set, old_set, set_size))
98 perror_msg_and_fail("rt_sigprocmask");
99 tprintf("rt_sigprocmask(SIG_BLOCK, [HUP], [], %u) = 0\n", set_size);
101 memset(libc_set, -1, sizeof(sigset_t));
102 sigdelset(libc_set, SIGHUP);
103 memcpy(k_set, libc_set, set_size);
105 if (k_sigprocmask(SIG_UNBLOCK, k_set, old_set, set_size))
106 perror_msg_and_fail("rt_sigprocmask");
107 tprintf("rt_sigprocmask(SIG_UNBLOCK, ~[HUP], [HUP], %u) = 0\n",
110 sigdelset(libc_set, SIGKILL);
111 memcpy(k_set, libc_set, set_size);
113 if (k_sigprocmask(SIG_UNBLOCK, k_set, old_set, set_size))
114 perror_msg_and_fail("rt_sigprocmask");
115 tprintf("rt_sigprocmask(SIG_UNBLOCK, ~[HUP KILL], [HUP], %u) = 0\n",
118 sigemptyset(libc_set);
119 sigaddset(libc_set, SIGHUP);
120 sigaddset(libc_set, SIGINT);
121 sigaddset(libc_set, SIGQUIT);
122 sigaddset(libc_set, SIGALRM);
123 sigaddset(libc_set, SIGTERM);
124 memcpy(k_set, libc_set, set_size);
126 if (k_sigprocmask(SIG_BLOCK, k_set, old_set, set_size))
127 perror_msg_and_fail("rt_sigprocmask");
128 tprintf("rt_sigprocmask(SIG_BLOCK, %s, [HUP], %u) = 0\n",
129 "[HUP INT QUIT ALRM TERM]", set_size);
131 if (k_sigprocmask(SIG_SETMASK, NULL, old_set, set_size))
132 perror_msg_and_fail("rt_sigprocmask");
133 tprintf("rt_sigprocmask(SIG_SETMASK, NULL, %s, %u) = 0\n",
134 "[HUP INT QUIT ALRM TERM]", set_size);
136 assert(k_sigprocmask(SIG_SETMASK, k_set + (set_size >> 1), NULL,
138 tprintf("rt_sigprocmask(SIG_SETMASK, %p, NULL, %u) = -1 EFAULT (%m)\n",
139 k_set + (set_size >> 1), set_size);
141 assert(k_sigprocmask(SIG_SETMASK, k_set, old_set + (set_size >> 1),
143 tprintf("rt_sigprocmask(SIG_SETMASK, %s, %p, %u) = -1 EFAULT (%m)\n",
144 "[HUP INT QUIT ALRM TERM]",
145 old_set + (set_size >> 1), set_size);
147 tprintf("+++ exited with 0 +++\n");
153 SKIP_MAIN_UNDEFINED("__NR_rt_sigprocmask")