1 /* $OpenBSD: profile.h,v 1.2 1999/01/27 04:46:05 imp Exp $ */
2 /*-
3 * SPDX-License-Identifier: BSD-3-Clause
4 *
5 * Copyright (c) 1992, 1993
6 * The Regents of the University of California. All rights reserved.
7 *
8 * This code is derived from software contributed to Berkeley by
9 * Ralph Campbell.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 *
35 * from: @(#)profile.h 8.1 (Berkeley) 6/10/93
36 * JNPR: profile.h,v 1.4 2006/12/02 09:53:41 katta
37 * $FreeBSD$
38 */
39 #ifndef _MACHINE_PROFILE_H_
40 #define _MACHINE_PROFILE_H_
41
42 #define _MCOUNT_DECL void ___mcount
43
44 /*XXX The cprestore instruction is a "dummy" to shut up as(1). */
45
46 /*XXX This is not MIPS64 safe. */
47
48 #define MCOUNT \
49 __asm(".text;" \
50 ".globl _mcount;" \
51 ".type _mcount,@function;" \
52 "_mcount:;" \
53 ".set noreorder;" \
54 ".set noat;" \
55 ".cpload $25;" \
56 ".cprestore 4;" \
57 "sw $4,8($29);" \
58 "sw $5,12($29);" \
59 "sw $6,16($29);" \
60 "sw $7,20($29);" \
61 "sw $1,0($29);" \
62 "sw $31,4($29);" \
63 "move $5,$31;" \
64 "jal ___mcount;" \
65 "move $4,$1;" \
66 "lw $4,8($29);" \
67 "lw $5,12($29);" \
68 "lw $6,16($29);" \
69 "lw $7,20($29);" \
70 "lw $31,4($29);" \
71 "lw $1,0($29);" \
72 "addu $29,$29,8;" \
73 "j $31;" \
74 "move $31,$1;" \
75 ".set reorder;" \
76 ".set at");
77
78 #ifdef _KERNEL
79 /*
80 * The following two macros do splhigh and splx respectively.
81 * They have to be defined this way because these are real
82 * functions on the MIPS, and we do not want to invoke mcount
83 * recursively.
84 */
85
86 #define MCOUNT_DECL(s) u_long s;
87 #ifdef SMP
88 extern int mcount_lock;
89 #define MCOUNT_ENTER(s) { \
90 s = intr_disable(); \
91 while (!atomic_cmpset_acq_int(&mcount_lock, 0, 1)) \
92 /* nothing */ ; \
93 }
94 #define MCOUNT_EXIT(s) { \
95 atomic_store_rel_int(&mcount_lock, 0); \
96 intr_restore(s); \
97 }
98 #else
99 #define MCOUNT_ENTER(s) { s = intr_disable(); }
100 #define MCOUNT_EXIT(s) (intr_restore(s))
101 #endif
102
103 /* REVISIT for mips */
104 /*
105 * Config generates something to tell the compiler to align functions on 16
106 * byte boundaries. A strict alignment is good for keeping the tables small.
107 */
108 #define FUNCTION_ALIGNMENT 16
109
110 #ifdef GUPROF
111 struct gmonparam;
112 void stopguprof __P((struct gmonparam *p));
113 #else
114 #define stopguprof(p)
115 #endif /* GUPROF */
116
117 #else /* !_KERNEL */
118
119 #define FUNCTION_ALIGNMENT 4
120
121 #ifdef __mips_n64
122 typedef u_long uintfptr_t;
123 #else
124 typedef u_int uintfptr_t;
125 #endif
126
127 #endif /* _KERNEL */
128
129 /*
130 * An unsigned integral type that can hold non-negative difference between
131 * function pointers.
132 */
133 #ifdef __mips_n64
134 typedef u_long fptrdiff_t;
135 #else
136 typedef u_int fptrdiff_t;
137 #endif
138
139 #ifdef _KERNEL
140
141 void mcount(uintfptr_t frompc, uintfptr_t selfpc);
142
143 #ifdef GUPROF
144 struct gmonparam;
145
146 void nullfunc_loop_profiled(void);
147 void nullfunc_profiled(void);
148 void startguprof(struct gmonparam *p);
149 void stopguprof(struct gmonparam *p);
150 #else
151 #define startguprof(p)
152 #define stopguprof(p)
153 #endif /* GUPROF */
154
155 #else /* !_KERNEL */
156
157 #include <sys/cdefs.h>
158
159 __BEGIN_DECLS
160 #ifdef __GNUC__
161 #ifdef __ELF__
162 void mcount(void) __asm(".mcount");
163 #else
164 void mcount(void) __asm("mcount");
165 #endif
166 #endif
167 void _mcount(uintfptr_t frompc, uintfptr_t selfpc);
168 __END_DECLS
169
170 #endif /* _KERNEL */
171
172 #ifdef GUPROF
173 /* XXX doesn't quite work outside kernel yet. */
174 extern int cputime_bias;
175
176 __BEGIN_DECLS
177 int cputime(void);
178 void empty_loop(void);
179 void mexitcount(uintfptr_t selfpc);
180 void nullfunc(void);
181 void nullfunc_loop(void);
182 __END_DECLS
183 #endif
184
185 #endif /* !_MACHINE_PROFILE_H_ */
Cache object: ac05aa8a21b71e9768f61d76c165d78b
|