1 /* $OpenBSD: profile.h,v 1.2 1999/01/27 04:46:05 imp Exp $ */
2 /*-
3 * Copyright (c) 1992, 1993
4 * The Regents of the University of California. All rights reserved.
5 *
6 * This code is derived from software contributed to Berkeley by
7 * Ralph Campbell.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * from: @(#)profile.h 8.1 (Berkeley) 6/10/93
34 * JNPR: profile.h,v 1.4 2006/12/02 09:53:41 katta
35 * $FreeBSD: releng/9.0/sys/mips/include/profile.h 210606 2010-07-29 14:04:29Z jchandra $
36 */
37 #ifndef _MACHINE_PROFILE_H_
38 #define _MACHINE_PROFILE_H_
39
40 #define _MCOUNT_DECL void ___mcount
41
42 /*XXX The cprestore instruction is a "dummy" to shut up as(1). */
43
44 /*XXX This is not MIPS64 safe. */
45
46 #define MCOUNT \
47 __asm(".globl _mcount;" \
48 ".type _mcount,@function;" \
49 "_mcount:;" \
50 ".set noreorder;" \
51 ".set noat;" \
52 ".cpload $25;" \
53 ".cprestore 4;" \
54 "sw $4,8($29);" \
55 "sw $5,12($29);" \
56 "sw $6,16($29);" \
57 "sw $7,20($29);" \
58 "sw $1,0($29);" \
59 "sw $31,4($29);" \
60 "move $5,$31;" \
61 "jal ___mcount;" \
62 "move $4,$1;" \
63 "lw $4,8($29);" \
64 "lw $5,12($29);" \
65 "lw $6,16($29);" \
66 "lw $7,20($29);" \
67 "lw $31,4($29);" \
68 "lw $1,0($29);" \
69 "addu $29,$29,8;" \
70 "j $31;" \
71 "move $31,$1;" \
72 ".set reorder;" \
73 ".set at");
74
75 #ifdef _KERNEL
76 /*
77 * The following two macros do splhigh and splx respectively.
78 * They have to be defined this way because these are real
79 * functions on the MIPS, and we do not want to invoke mcount
80 * recursively.
81 */
82
83 #define MCOUNT_DECL(s) u_long s;
84 #ifdef SMP
85 extern int mcount_lock;
86 #define MCOUNT_ENTER(s) { \
87 s = intr_disable(); \
88 while (!atomic_cmpset_acq_int(&mcount_lock, 0, 1)) \
89 /* nothing */ ; \
90 }
91 #define MCOUNT_EXIT(s) { \
92 atomic_store_rel_int(&mcount_lock, 0); \
93 intr_restore(s); \
94 }
95 #else
96 #define MCOUNT_ENTER(s) { s = intr_disable(); }
97 #define MCOUNT_EXIT(s) (intr_restore(s))
98 #endif
99
100 /* REVISIT for mips */
101 /*
102 * Config generates something to tell the compiler to align functions on 16
103 * byte boundaries. A strict alignment is good for keeping the tables small.
104 */
105 #define FUNCTION_ALIGNMENT 16
106
107 #ifdef GUPROF
108 struct gmonparam;
109 void stopguprof __P((struct gmonparam *p));
110 #else
111 #define stopguprof(p)
112 #endif /* GUPROF */
113
114 #else /* !_KERNEL */
115
116 #define FUNCTION_ALIGNMENT 4
117
118 #ifdef __mips_n64
119 typedef u_long uintfptr_t;
120 #else
121 typedef u_int uintfptr_t;
122 #endif
123
124 #endif /* _KERNEL */
125
126 /*
127 * An unsigned integral type that can hold non-negative difference between
128 * function pointers.
129 */
130 #ifdef __mips_n64
131 typedef u_long fptrdiff_t;
132 #else
133 typedef u_int fptrdiff_t;
134 #endif
135
136 #ifdef _KERNEL
137
138 void mcount(uintfptr_t frompc, uintfptr_t selfpc);
139
140 #ifdef GUPROF
141 struct gmonparam;
142
143 void nullfunc_loop_profiled(void);
144 void nullfunc_profiled(void);
145 void startguprof(struct gmonparam *p);
146 void stopguprof(struct gmonparam *p);
147 #else
148 #define startguprof(p)
149 #define stopguprof(p)
150 #endif /* GUPROF */
151
152 #else /* !_KERNEL */
153
154 #include <sys/cdefs.h>
155
156 __BEGIN_DECLS
157 #ifdef __GNUC__
158 #ifdef __ELF__
159 void mcount(void) __asm(".mcount");
160 #else
161 void mcount(void) __asm("mcount");
162 #endif
163 #endif
164 void _mcount(uintfptr_t frompc, uintfptr_t selfpc);
165 __END_DECLS
166
167 #endif /* _KERNEL */
168
169 #ifdef GUPROF
170 /* XXX doesn't quite work outside kernel yet. */
171 extern int cputime_bias;
172
173 __BEGIN_DECLS
174 int cputime(void);
175 void empty_loop(void);
176 void mexitcount(uintfptr_t selfpc);
177 void nullfunc(void);
178 void nullfunc_loop(void);
179 __END_DECLS
180 #endif
181
182 #endif /* !_MACHINE_PROFILE_H_ */
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