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