| 1 | /* Test program for profiling information collection (_mcount/gprof). |
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| 2 | Copyright (C) 2017-2024 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 | /* This program does not use the test harness because we want tight |
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| 20 | control over the call graph. */ |
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| 21 | |
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| 22 | __attribute__ ((noinline, noclone, weak)) void |
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| 23 | f1 (void) |
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| 24 | { |
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| 25 | } |
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| 26 | |
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| 27 | __attribute__ ((noinline, noclone, weak)) void |
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| 28 | f2 (void) |
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| 29 | { |
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| 30 | f1 (); |
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| 31 | /* Prevent tail call. */ |
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| 32 | asm volatile ("" ); |
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| 33 | } |
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| 34 | |
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| 35 | __attribute__ ((noinline, noclone, weak)) void |
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| 36 | f3 (int count) |
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| 37 | { |
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| 38 | for (int i = 0; i < count; ++i) |
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| 39 | { |
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| 40 | f1 (); |
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| 41 | f2 (); |
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| 42 | } |
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| 43 | } |
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| 44 | |
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| 45 | int |
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| 46 | main (void) |
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| 47 | { |
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| 48 | f3 (count: 1000); |
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| 49 | return 0; |
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| 50 | } |
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| 51 | |
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