1/*	$NetBSD: profile.h,v 1.10 2021/11/02 11:22:03 ryo Exp $	*/
  2
  3/*-
  4 * Copyright (c) 2000 Tsubai Masanari.  All rights reserved.
  5 *
  6 * Redistribution and use in source and binary forms, with or without
  7 * modification, are permitted provided that the following conditions
  8 * are met:
  9 * 1. Redistributions of source code must retain the above copyright
 10 *    notice, this list of conditions and the following disclaimer.
 11 * 2. Redistributions in binary form must reproduce the above copyright
 12 *    notice, this list of conditions and the following disclaimer in the
 13 *    documentation and/or other materials provided with the distribution.
 14 * 3. The name of the author may not be used to endorse or promote products
 15 *    derived from this software without specific prior written permission.
 16 *
 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 27 */
 28
 29#ifdef _KERNEL_OPT
 30#include "opt_ppcarch.h"
 31#endif
 32
 33#define	_MCOUNT_DECL	void __mcount
 34
 35#ifdef _LP64
 36
 37#define MCOUNT				\
 38__asm("	.globl	_mcount			\n" \
 39"	.section \".opd\",\"aw\"	\n" \
 40"	.align 3			\n" \
 41"_mcount:				\n" \
 42"	.quad	._mcount,.TOC.@tocbase,0\n" \
 43"	.previous			\n" \
 44"	.size	_mcount,24		\n" \
 45"	.type	._mcount,@function	\n" \
 46"	.globl	._mcount		\n" \
 47"	.align	3			\n" \
 48"._mcount:				\n" \
 49"	frame=128			\n" \
 50"	stdu	1,-frame(1)		\n" \
 51"	std	2,120(1)		\n" \
 52"	std	3,48+0(1)		\n" \
 53"	std	4,48+8(1)		\n" \
 54"	std	5,48+16(1)		\n" \
 55"	std	6,48+24(1)		\n" \
 56"	std	7,48+32(1)		\n" \
 57"	std	8,48+40(1)		\n" \
 58"	std	9,48+48(1)		\n" \
 59"	std	10,48+56(1)		\n" \
 60"					\n" \
 61"	mflr	4			\n" \
 62"	std	4,112(1)		\n" \
 63"	ld	3,frame+16(1)		\n" \
 64"	bl	.__mcount		\n" \
 65"	ld	2,120(1)		\n" \
 66"	ld	3,frame+16(1)		\n" \
 67"	mtlr	3			\n" \
 68"	ld	4,112(1)		\n" \
 69"	mtctr	4			\n" \
 70"					\n" \
 71"	ld	3,16(1)			\n" \
 72"	ld	4,20(1)			\n" \
 73"	ld	5,24(1)			\n" \
 74"	ld	6,28(1)			\n" \
 75"	ld	7,32(1)			\n" \
 76"	ld	8,36(1)			\n" \
 77"	ld	9,40(1)			\n" \
 78"	ld	10,44(1)		\n" \
 79"	addi	1,1,frame		\n" \
 80"	bctr");
 81
 82#else
 83
 84#ifdef __PIC__
 85#define _PLT "@plt"
 86#else
 87#define _PLT
 88#endif
 89
 90#define MCOUNT				\
 91__asm("	.globl	_mcount			\n" \
 92"	.type	_mcount,@function	\n" \
 93"_mcount:				\n" \
 94"	stwu	1,-64(1)		\n" \
 95"	stw	3,16(1)			\n" \
 96"	stw	4,20(1)			\n" \
 97"	stw	5,24(1)			\n" \
 98"	stw	6,28(1)			\n" \
 99"	stw	7,32(1)			\n" \
100"	stw	8,36(1)			\n" \
101"	stw	9,40(1)			\n" \
102"	stw	10,44(1)		\n" \
103"					\n" \
104"	mflr	4			\n" \
105"	stw	4,48(1)			\n" \
106"	lwz	3,68(1)			\n" \
107"	bl	__mcount" _PLT "	\n" \
108"	lwz	3,68(1)			\n" \
109"	mtlr	3			\n" \
110"	lwz	4,48(1)			\n" \
111"	mtctr	4			\n" \
112"					\n" \
113"	lwz	3,16(1)			\n" \
114"	lwz	4,20(1)			\n" \
115"	lwz	5,24(1)			\n" \
116"	lwz	6,28(1)			\n" \
117"	lwz	7,32(1)			\n" \
118"	lwz	8,36(1)			\n" \
119"	lwz	9,40(1)			\n" \
120"	lwz	10,44(1)		\n" \
121"	addi	1,1,64			\n" \
122"	bctr				\n" \
123"_mcount_end:				\n" \
124"	.size	_mcount,_mcount_end-_mcount");
125
126#endif
127
128#ifdef _KERNEL
129#ifdef PPC_BOOKE
130#include <powerpc/booke/cpuvar.h>
131
132#define MCOUNT_ENTER	do s = wrtee(0); while (/*CONSTCOND*/ 0)
133#define MCOUNT_EXIT	wrtee(s)
134#else
135#include <powerpc/psl.h>
136#define MCOUNT_ENTER						\
137	__asm volatile("mfmsr %0" : "=r"(s));			\
138	if ((s & (PSL_IR | PSL_DR)) != (PSL_IR | PSL_DR))	\
139		return;		/* XXX */			\
140	s &= ~PSL_POW;						\
141	__asm volatile("mtmsr %0" :: "r"(s & ~PSL_EE))
142
143#define MCOUNT_EXIT						\
144	__asm volatile("mtmsr %0" :: "r"(s))
145#endif
146
147#endif