about summary refs log tree commit diff
path: root/nptl/tst-cancel19.c
blob: b6752d82521171f22069968edc35f98d71817ead (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
/* Copyright (C) 2003-2020 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library 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
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, see
   <https://www.gnu.org/licenses/>.  */

#include <errno.h>
#include <error.h>
#include <fcntl.h>
#include <pthread.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/select.h>
#include <sys/time.h>
#include <unistd.h>

static void *
tf (void *arg)
{
  return NULL;
}

static void
handler (int sig)
{
}

static void __attribute__ ((noinline))
clobber_lots_of_regs (void)
{
#define X1(n) long r##n = 10##n; __asm __volatile ("" : "+r" (r##n));
#define X2(n) X1(n##0) X1(n##1) X1(n##2) X1(n##3) X1(n##4)
#define X3(n) X2(n##0) X2(n##1) X2(n##2) X2(n##3) X2(n##4)
  X3(0) X3(1) X3(2) X3(3) X3(4)
#undef X1
#define X1(n) __asm __volatile ("" : : "r" (r##n));
  X3(0) X3(1) X3(2) X3(3) X3(4)
#undef X1
#undef X2
#undef X3
}

static int
do_test (void)
{
  pthread_t th;
  int old, rc;
  int ret = 0;
  int fd[2];

  rc = pipe (fd);
  if (rc < 0)
    error (EXIT_FAILURE, errno, "couldn't create pipe");

  rc = pthread_create (&th, NULL, tf, NULL);
  if (rc)
    error (EXIT_FAILURE, rc, "couldn't create thread");

  rc = pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, &old);
  if (rc)
    {
      error (0, rc, "1st pthread_setcanceltype failed");
      ret = 1;
    }
  if (old != PTHREAD_CANCEL_DEFERRED && old != PTHREAD_CANCEL_ASYNCHRONOUS)
    {
      error (0, 0, "1st pthread_setcanceltype returned invalid value %d",
	     old);
      ret = 1;
    }

  clobber_lots_of_regs ();
  close (fd[0]);

  rc = pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, &old);
  if (rc)
    {
      error (0, rc, "pthread_setcanceltype after close failed");
      ret = 1;
    }
  if (old != PTHREAD_CANCEL_DEFERRED)
    {
      error (0, 0, "pthread_setcanceltype after close returned invalid value %d",
	     old);
      ret = 1;
    }

  clobber_lots_of_regs ();
  close (fd[1]);

  rc = pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, &old);
  if (rc)
    {
      error (0, rc, "pthread_setcanceltype after 2nd close failed");
      ret = 1;
    }
  if (old != PTHREAD_CANCEL_ASYNCHRONOUS)
    {
      error (0, 0, "pthread_setcanceltype after 2nd close returned invalid value %d",
	     old);
      ret = 1;
    }

  struct sigaction sa = { .sa_handler = handler, .sa_flags = 0 };
  sigemptyset (&sa.sa_mask);
  sigaction (SIGALRM, &sa, NULL);

  struct itimerval it;
  it.it_value.tv_sec = 1;
  it.it_value.tv_usec = 0;
  it.it_interval = it.it_value;
  setitimer (ITIMER_REAL, &it, NULL);

  clobber_lots_of_regs ();
  pause ();

  memset (&it, 0, sizeof (it));
  setitimer (ITIMER_REAL, &it, NULL);

  rc = pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, &old);
  if (rc)
    {
      error (0, rc, "pthread_setcanceltype after pause failed");
      ret = 1;
    }
  if (old != PTHREAD_CANCEL_DEFERRED)
    {
      error (0, 0, "pthread_setcanceltype after pause returned invalid value %d",
	     old);
      ret = 1;
    }

  it.it_value.tv_sec = 1;
  it.it_value.tv_usec = 0;
  it.it_interval = it.it_value;
  setitimer (ITIMER_REAL, &it, NULL);

  clobber_lots_of_regs ();
  pause ();

  memset (&it, 0, sizeof (it));
  setitimer (ITIMER_REAL, &it, NULL);

  rc = pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, &old);
  if (rc)
    {
      error (0, rc, "pthread_setcanceltype after 2nd pause failed");
      ret = 1;
    }
  if (old != PTHREAD_CANCEL_ASYNCHRONOUS)
    {
      error (0, 0, "pthread_setcanceltype after 2nd pause returned invalid value %d",
	     old);
      ret = 1;
    }

  char fname[] = "/tmp/tst-cancel19-dir-XXXXXX\0foo/bar";
  char *enddir = strchr (fname, '\0');
  if (mkdtemp (fname) == NULL)
    {
      error (0, errno, "mkdtemp failed");
      ret = 1;
    }
  *enddir = '/';

  clobber_lots_of_regs ();
  creat (fname, 0400);

  rc = pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, &old);
  if (rc)
    {
      error (0, rc, "pthread_setcanceltype after creat failed");
      ret = 1;
    }
  if (old != PTHREAD_CANCEL_DEFERRED)
    {
      error (0, 0, "pthread_setcanceltype after creat returned invalid value %d",
	     old);
      ret = 1;
    }

  clobber_lots_of_regs ();
  creat (fname, 0400);

  rc = pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, &old);
  if (rc)
    {
      error (0, rc, "pthread_setcanceltype after 2nd creat failed");
      ret = 1;
    }
  if (old != PTHREAD_CANCEL_ASYNCHRONOUS)
    {
      error (0, 0, "pthread_setcanceltype after 2nd creat returned invalid value %d",
	     old);
      ret = 1;
    }

  clobber_lots_of_regs ();
  open (fname, O_CREAT, 0400);

  rc = pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, &old);
  if (rc)
    {
      error (0, rc, "pthread_setcanceltype after open failed");
      ret = 1;
    }
  if (old != PTHREAD_CANCEL_DEFERRED)
    {
      error (0, 0, "pthread_setcanceltype after open returned invalid value %d",
	     old);
      ret = 1;
    }

  clobber_lots_of_regs ();
  open (fname, O_CREAT, 0400);

  rc = pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, &old);
  if (rc)
    {
      error (0, rc, "pthread_setcanceltype after 2nd open failed");
      ret = 1;
    }
  if (old != PTHREAD_CANCEL_ASYNCHRONOUS)
    {
      error (0, 0, "pthread_setcanceltype after 2nd open returned invalid value %d",
	     old);
      ret = 1;
    }

  *enddir = '\0';
  rmdir (fname);

  clobber_lots_of_regs ();
  select (-1, NULL, NULL, NULL, NULL);

  rc = pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, &old);
  if (rc)
    {
      error (0, rc, "pthread_setcanceltype after select failed");
      ret = 1;
    }
  if (old != PTHREAD_CANCEL_DEFERRED)
    {
      error (0, 0, "pthread_setcanceltype after select returned invalid value %d",
	     old);
      ret = 1;
    }

  clobber_lots_of_regs ();
  select (-1, NULL, NULL, NULL, NULL);

  rc = pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, &old);
  if (rc)
    {
      error (0, rc, "pthread_setcanceltype after 2nd select failed");
      ret = 1;
    }
  if (old != PTHREAD_CANCEL_ASYNCHRONOUS)
    {
      error (0, 0, "pthread_setcanceltype after 2nd select returned invalid value %d",
	     old);
      ret = 1;
    }

  pthread_join (th, NULL);

  return ret;
}

#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"