1/* PowerPC64-specific implementation of profiling support.
2   Copyright (C) 1997-2022 Free Software Foundation, Inc.
3   This file is part of the GNU C Library.
4
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.
9
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.
14
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/>.  */
18
19#include <sysdep.h>
20/* We don't need to save the parameter-passing registers as gcc takes
21   care of that for us.  Thus this function looks fairly normal.
22   In fact, the generic code would work for us.  */
23
24ENTRY(_mcount)
25	mflr		 r4
26	ld		 r11, 0(r1)
27	std		 r4, FRAME_LR_SAVE(r1)
28	stdu		 r1,-FRAME_MIN_SIZE(r1)
29	cfi_adjust_cfa_offset (FRAME_MIN_SIZE)
30	cfi_offset (lr, FRAME_LR_SAVE)
31	ld		 r3, FRAME_LR_SAVE(r11)
32	bl		 JUMPTARGET (NOTOC (__mcount_internal))
33#ifndef SHARED
34	nop
35#endif
36	ld		 r0, FRAME_MIN_SIZE+FRAME_LR_SAVE(r1)
37	mtlr		 r0
38	addi		 r1,r1,FRAME_MIN_SIZE
39	blr
40END(_mcount)
41