1/*
2 * Copyright (c) 1992, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
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 * @(#)profile.h 8.1 (Berkeley) 6/11/93
| 1/*
2 * Copyright (c) 1992, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
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 * @(#)profile.h 8.1 (Berkeley) 6/11/93
|
34 * $FreeBSD: head/sys/i386/include/profile.h 55205 1999-12-29 04:46:21Z peter $
| 34 * $FreeBSD: head/sys/i386/include/profile.h 71576 2001-01-24 12:35:55Z jasone $
|
35 */
36
37#ifndef _MACHINE_PROFILE_H_
38#define _MACHINE_PROFILE_H_
39
40#ifdef _KERNEL
41
42/*
43 * Config generates something to tell the compiler to align functions on 16
44 * byte boundaries. A strict alignment is good for keeping the tables small.
45 */
46#define FUNCTION_ALIGNMENT 16
47
48/*
49 * The kernel uses assembler stubs instead of unportable inlines.
50 * This is mainly to save a little time when profiling is not enabled,
51 * which is the usual case for the kernel.
52 */
53#define _MCOUNT_DECL void mcount
54#define MCOUNT
55
56#ifdef GUPROF
57#define CALIB_SCALE 1000
58#define KCOUNT(p,index) ((p)->kcount[(index) \
59 / (HISTFRACTION * sizeof(HISTCOUNTER))])
60#define MCOUNT_DECL(s)
61#define MCOUNT_ENTER(s)
62#define MCOUNT_EXIT(s)
63#define PC_TO_I(p, pc) ((uintfptr_t)(pc) - (uintfptr_t)(p)->lowpc)
64#else
65#define MCOUNT_DECL(s) u_long s;
66#ifdef SMP
67#define MCOUNT_ENTER(s) { s = read_eflags(); \
68 __asm __volatile("cli" : : : "memory"); \
| 35 */
36
37#ifndef _MACHINE_PROFILE_H_
38#define _MACHINE_PROFILE_H_
39
40#ifdef _KERNEL
41
42/*
43 * Config generates something to tell the compiler to align functions on 16
44 * byte boundaries. A strict alignment is good for keeping the tables small.
45 */
46#define FUNCTION_ALIGNMENT 16
47
48/*
49 * The kernel uses assembler stubs instead of unportable inlines.
50 * This is mainly to save a little time when profiling is not enabled,
51 * which is the usual case for the kernel.
52 */
53#define _MCOUNT_DECL void mcount
54#define MCOUNT
55
56#ifdef GUPROF
57#define CALIB_SCALE 1000
58#define KCOUNT(p,index) ((p)->kcount[(index) \
59 / (HISTFRACTION * sizeof(HISTCOUNTER))])
60#define MCOUNT_DECL(s)
61#define MCOUNT_ENTER(s)
62#define MCOUNT_EXIT(s)
63#define PC_TO_I(p, pc) ((uintfptr_t)(pc) - (uintfptr_t)(p)->lowpc)
64#else
65#define MCOUNT_DECL(s) u_long s;
66#ifdef SMP
67#define MCOUNT_ENTER(s) { s = read_eflags(); \
68 __asm __volatile("cli" : : : "memory"); \
|
69 s_lock_np(&mcount_lock); }
70#define MCOUNT_EXIT(s) { s_unlock_np(&mcount_lock); write_eflags(s); }
| 69 mtx_enter(&mcount_mtx, MTX_DEF); }
70#define MCOUNT_EXIT(s) { mtx_exit(&mcount_mtx, MTX_DEF); write_eflags(s); }
|
71#else
72#define MCOUNT_ENTER(s) { s = read_eflags(); disable_intr(); }
73#define MCOUNT_EXIT(s) (write_eflags(s))
74#endif
75#endif /* GUPROF */
76
77#else /* !_KERNEL */
78
79#define FUNCTION_ALIGNMENT 4
80
81#define _MCOUNT_DECL static __inline void _mcount
82
83#define MCOUNT \
84void \
85mcount() \
86{ \
87 uintfptr_t selfpc, frompc; \
88 /* \
89 * Find the return address for mcount, \
90 * and the return address for mcount's caller. \
91 * \
92 * selfpc = pc pushed by call to mcount \
93 */ \
94 asm("movl 4(%%ebp),%0" : "=r" (selfpc)); \
95 /* \
96 * frompc = pc pushed by call to mcount's caller. \
97 * The caller's stack frame has already been built, so %ebp is \
98 * the caller's frame pointer. The caller's raddr is in the \
99 * caller's frame following the caller's caller's frame pointer. \
100 */ \
101 asm("movl (%%ebp),%0" : "=r" (frompc)); \
102 frompc = ((uintfptr_t *)frompc)[1]; \
103 _mcount(frompc, selfpc); \
104}
105
106typedef unsigned int uintfptr_t;
107
108#endif /* _KERNEL */
109
110/*
111 * An unsigned integral type that can hold non-negative difference between
112 * function pointers.
113 */
114typedef u_int fptrdiff_t;
115
116#ifdef _KERNEL
117
118void mcount __P((uintfptr_t frompc, uintfptr_t selfpc));
119
120#ifdef GUPROF
121struct gmonparam;
122
123void nullfunc_loop_profiled __P((void));
124void nullfunc_profiled __P((void));
125void startguprof __P((struct gmonparam *p));
126void stopguprof __P((struct gmonparam *p));
127#else
128#define startguprof(p)
129#define stopguprof(p)
130#endif /* GUPROF */
131
132#else /* !_KERNEL */
133
134#include <sys/cdefs.h>
135
136__BEGIN_DECLS
137#ifdef __GNUC__
138#ifdef __ELF__
139void mcount __P((void)) __asm(".mcount");
140#else
141void mcount __P((void)) __asm("mcount");
142#endif
143#endif
144static void _mcount __P((uintfptr_t frompc, uintfptr_t selfpc));
145__END_DECLS
146
147#endif /* _KERNEL */
148
149#ifdef GUPROF
150/* XXX doesn't quite work outside kernel yet. */
151extern int cputime_bias;
152
153__BEGIN_DECLS
154int cputime __P((void));
155void empty_loop __P((void));
156void mexitcount __P((uintfptr_t selfpc));
157void nullfunc __P((void));
158void nullfunc_loop __P((void));
159__END_DECLS
160#endif
161
162#endif /* !_MACHINE_PROFILE_H_ */
| 71#else
72#define MCOUNT_ENTER(s) { s = read_eflags(); disable_intr(); }
73#define MCOUNT_EXIT(s) (write_eflags(s))
74#endif
75#endif /* GUPROF */
76
77#else /* !_KERNEL */
78
79#define FUNCTION_ALIGNMENT 4
80
81#define _MCOUNT_DECL static __inline void _mcount
82
83#define MCOUNT \
84void \
85mcount() \
86{ \
87 uintfptr_t selfpc, frompc; \
88 /* \
89 * Find the return address for mcount, \
90 * and the return address for mcount's caller. \
91 * \
92 * selfpc = pc pushed by call to mcount \
93 */ \
94 asm("movl 4(%%ebp),%0" : "=r" (selfpc)); \
95 /* \
96 * frompc = pc pushed by call to mcount's caller. \
97 * The caller's stack frame has already been built, so %ebp is \
98 * the caller's frame pointer. The caller's raddr is in the \
99 * caller's frame following the caller's caller's frame pointer. \
100 */ \
101 asm("movl (%%ebp),%0" : "=r" (frompc)); \
102 frompc = ((uintfptr_t *)frompc)[1]; \
103 _mcount(frompc, selfpc); \
104}
105
106typedef unsigned int uintfptr_t;
107
108#endif /* _KERNEL */
109
110/*
111 * An unsigned integral type that can hold non-negative difference between
112 * function pointers.
113 */
114typedef u_int fptrdiff_t;
115
116#ifdef _KERNEL
117
118void mcount __P((uintfptr_t frompc, uintfptr_t selfpc));
119
120#ifdef GUPROF
121struct gmonparam;
122
123void nullfunc_loop_profiled __P((void));
124void nullfunc_profiled __P((void));
125void startguprof __P((struct gmonparam *p));
126void stopguprof __P((struct gmonparam *p));
127#else
128#define startguprof(p)
129#define stopguprof(p)
130#endif /* GUPROF */
131
132#else /* !_KERNEL */
133
134#include <sys/cdefs.h>
135
136__BEGIN_DECLS
137#ifdef __GNUC__
138#ifdef __ELF__
139void mcount __P((void)) __asm(".mcount");
140#else
141void mcount __P((void)) __asm("mcount");
142#endif
143#endif
144static void _mcount __P((uintfptr_t frompc, uintfptr_t selfpc));
145__END_DECLS
146
147#endif /* _KERNEL */
148
149#ifdef GUPROF
150/* XXX doesn't quite work outside kernel yet. */
151extern int cputime_bias;
152
153__BEGIN_DECLS
154int cputime __P((void));
155void empty_loop __P((void));
156void mexitcount __P((uintfptr_t selfpc));
157void nullfunc __P((void));
158void nullfunc_loop __P((void));
159__END_DECLS
160#endif
161
162#endif /* !_MACHINE_PROFILE_H_ */
|