1 /* Check getcontext and setcontext on the context from makecontext.
2 Copyright (C) 2018-2022 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
23 #include <stdatomic.h>
25 static ucontext_t ctx
[3];
26 static atomic_int done
;
29 __attribute__((noinline
, noclone
))
32 printf ("start f2\n");
34 if (setcontext (&ctx
[2]) != 0)
36 printf ("%s: setcontext: %m\n", __FUNCTION__
);
44 printf ("start f1\n");
45 if (getcontext (&ctx
[2]) != 0)
47 printf ("%s: getcontext: %m\n", __FUNCTION__
);
59 puts ("making contexts");
60 if (getcontext (&ctx
[0]) != 0)
62 printf ("%s: getcontext: %m\n", __FUNCTION__
);
65 if (getcontext (&ctx
[1]) != 0)
67 printf ("%s: getcontext: %m\n", __FUNCTION__
);
70 ctx
[1].uc_stack
.ss_sp
= st1
;
71 ctx
[1].uc_stack
.ss_size
= sizeof st1
;
72 ctx
[1].uc_link
= &ctx
[0];
73 makecontext (&ctx
[1], (void (*) (void)) f1
, 0);
74 if (setcontext (&ctx
[1]) != 0)
76 printf ("%s: setcontext: %m\n", __FUNCTION__
);
82 #include <support/test-driver.c>