| 1 | /* PowerPC64-specific implementation of profiling support. |
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| 2 | Copyright (C) 1997-2024 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 | #include <sysdep.h> |
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| 20 | /* We don't need to save the parameter-passing registers as gcc takes |
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| 21 | care of that for us. Thus this function looks fairly normal. |
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| 22 | In fact, the generic code would work for us. */ |
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| 23 | |
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| 24 | ENTRY(_mcount) |
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| 25 | mflr r4 |
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| 26 | ld r11, 0(r1) |
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| 27 | std r4, FRAME_LR_SAVE(r1) |
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| 28 | stdu r1,-FRAME_MIN_SIZE(r1) |
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| 29 | cfi_adjust_cfa_offset (FRAME_MIN_SIZE) |
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| 30 | cfi_offset (lr, FRAME_LR_SAVE) |
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| 31 | ld r3, FRAME_LR_SAVE(r11) |
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| 32 | bl JUMPTARGET (NOTOC (__mcount_internal)) |
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| 33 | #ifndef SHARED |
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| 34 | nop |
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| 35 | #endif |
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| 36 | ld r0, FRAME_MIN_SIZE+FRAME_LR_SAVE(r1) |
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| 37 | mtlr r0 |
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| 38 | addi r1,r1,FRAME_MIN_SIZE |
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| 39 | blr |
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| 40 | END(_mcount) |
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| 41 | |
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