projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 148e12ed UD |
1 | /* Copyright (C) 2008 Free Software Foundation, Inc. |
| 2 | This file is part of the GNU C Library. | |
| 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, write to the Free | |
| 16 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
| 17 | 02111-1307 USA. */ | |
| 18 | ||
| 19 | #include <errno.h> | |
| 20 | #include <stdlib.h> | |
| 21 | #include <stdio.h> | |
| 22 | #include <string.h> | |
| 23 | #include <ucontext.h> | |
| 24 | #include <tst-stack-align.h> | |
| 25 | ||
| 26 | ucontext_t ucp, ucp2; | |
| 27 | char st1[262144] __attribute__((aligned (16))); | |
| 28 | ||
| 29 | void | |
| 30 | cf (int i, int j) | |
| 31 | { | |
| 32 | if (i != 78 || j != 274) | |
| 33 | { | |
| 34 | printf ("i %d j %d\n", i, j); | |
| 35 | exit (1); | |
| 36 | } | |
| 37 | else if (TEST_STACK_ALIGN ()) | |
| 38 | { | |
| 39 | puts ("insufficiently aligned stack"); | |
| 40 | exit (2); | |
| 41 | } | |
| 42 | } | |
| 43 | ||
| 44 | int | |
| 45 | do_test (void) | |
| 46 | { | |
| 47 | for (size_t j = 32; j < 64; j += sizeof (long)) | |
| 48 | { | |
| 49 | if (getcontext (&ucp) != 0) | |
| 50 | { | |
| 51 | if (errno == ENOSYS) | |
| 52 | { | |
| 53 | puts ("context handling not supported"); | |
| 54 | return 0; | |
| 55 | } | |
| 56 | ||
| 57 | puts ("getcontext failed"); | |
| 58 | return 1; | |
| 59 | } | |
| 60 | ucp.uc_link = &ucp2; | |
| 61 | ucp.uc_stack.ss_sp = st1; | |
| 62 | ucp.uc_stack.ss_size = sizeof (st1) - j; | |
| 63 | memset (&st1[sizeof (st1) - j], 0x55, j); | |
| 64 | makecontext (&ucp, (void (*) (void)) cf, 2, 78, 274); | |
| 65 | if (swapcontext (&ucp2, &ucp) != 0) | |
| 66 | { | |
| 67 | puts ("setcontext failed"); | |
| 68 | return 1; | |
| 69 | } | |
| 70 | ||
| 71 | for (size_t i = j; i > 0; i--) | |
| 72 | if (st1[sizeof (st1) - j + i - 1] != 0x55) | |
| 73 | { printf ("fail %zd %zd\n", i, j); break; } | |
| 74 | } | |
| 75 | ||
| 76 | return 0; | |
| 77 | } | |
| 78 | ||
| 79 | #define TEST_FUNCTION do_test () | |
| 80 | #include "../test-skeleton.c" |