| 1 | /* Check __ppc_get_timebase() for architecture changes |
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| 2 | Copyright (C) 2012-2022 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 | /* Test if __ppc_get_timebase() is compatible with the current processor and if |
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| 20 | it's changing between reads. A read failure might indicate a Power ISA or |
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| 21 | binutils change. */ |
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| 22 | |
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| 23 | #include <inttypes.h> |
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| 24 | #include <stdio.h> |
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| 25 | #include <stdint.h> |
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| 26 | |
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| 27 | #include <sys/platform/ppc.h> |
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| 28 | |
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| 29 | static int |
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| 30 | do_test (void) |
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| 31 | { |
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| 32 | uint64_t t1, t2, t3; |
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| 33 | t1 = __ppc_get_timebase (); |
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| 34 | printf (format: "Time Base = %" PRIu64"\n" , t1); |
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| 35 | t2 = __ppc_get_timebase (); |
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| 36 | printf (format: "Time Base = %" PRIu64"\n" , t2); |
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| 37 | t3 = __ppc_get_timebase (); |
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| 38 | printf (format: "Time Base = %" PRIu64"\n" , t3); |
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| 39 | if (t1 != t2 && t1 != t3 && t2 != t3) |
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| 40 | return 0; |
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| 41 | |
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| 42 | printf (format: "Fail: timebase reads should always be different.\n" ); |
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| 43 | return 1; |
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| 44 | } |
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| 45 | |
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| 46 | #include <support/test-driver.c> |
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| 47 | |
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