1 /*-
2 * Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University.
3 * All rights reserved.
4 *
5 * Author: Chris G. Demetriou
6 *
7 * Permission to use, copy, modify and distribute this software and
8 * its documentation is hereby granted, provided that both the copyright
9 * notice and this permission notice appear in all copies of the
10 * software, derivative works or modified versions, and any portions
11 * thereof, and that both notices appear in supporting documentation.
12 *
13 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
14 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
15 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
16 *
17 * Carnegie Mellon requests users of this software to return to
18 *
19 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
20 * School of Computer Science
21 * Carnegie Mellon University
22 * Pittsburgh PA 15213-3890
23 *
24 * any improvements or extensions that they make and grant Carnegie the
25 * rights to redistribute these changes.
26 *
27 * from: NetBSD: profile.h,v 1.9 1997/04/06 08:47:37 cgd Exp
28 * from: FreeBSD: src/sys/alpha/include/profile.h,v 1.4 1999/12/29
29 * $FreeBSD: releng/8.2/sys/sparc64/include/profile.h 169488 2007-05-11 23:43:55Z marius $
30 */
31
32 #ifndef _MACHINE_PROFILE_H_
33 #define _MACHINE_PROFILE_H_
34
35 #if !defined(_KERNEL) && !defined(_SYS_CDEFS_H_)
36 #error this file needs sys/cdefs.h as a prerequisite
37 #endif
38
39 #define FUNCTION_ALIGNMENT 32
40
41 typedef u_long fptrdiff_t;
42
43 #ifdef _KERNEL
44
45 #include <machine/cpufunc.h>
46 #include <machine/intr_machdep.h>
47
48 #define _MCOUNT_DECL void mcount
49 #define MCOUNT
50
51 #define MCOUNT_DECL(s) register_t s;
52 #define MCOUNT_ENTER(s) s = rdpr(pil); wrpr(pil, 0, PIL_TICK)
53 #define MCOUNT_EXIT(s) wrpr(pil, 0, s)
54
55 void bintr(void);
56 void btrap(void);
57 void eintr(void);
58 void user(void);
59
60 #define MCOUNT_FROMPC_USER(pc) \
61 ((pc < (uintfptr_t)VM_MAXUSER_ADDRESS) ? (uintfptr_t)user : pc)
62
63 #define MCOUNT_FROMPC_INTR(pc) \
64 ((pc >= (uintfptr_t)btrap && pc < (uintfptr_t)eintr) ? \
65 ((pc >= (uintfptr_t)bintr) ? (uintfptr_t)bintr : \
66 (uintfptr_t)btrap) : ~0UL)
67
68 void mcount(uintfptr_t frompc, uintfptr_t selfpc);
69
70 #else /* !_KERNEL */
71
72 typedef u_long uintfptr_t;
73
74 #define _MCOUNT_DECL static __inline void __mcount
75
76 #ifdef __GNUCLIKE_ASM
77 #define MCOUNT \
78 void \
79 _mcount() \
80 { \
81 uintfptr_t frompc, selfpc; \
82 \
83 /* \
84 * Find the return address for mcount, \
85 * and the return address for mcount's caller. \
86 * \
87 * selfpc = pc pushed by call to mcount \
88 */ \
89 __asm("add %%o7, 8, %0" : "=r" (selfpc)); \
90 /* \
91 * frompc = pc pushed by call to mcount's caller. \
92 */ \
93 __asm("add %%i7, 8, %0" : "=r" (frompc)); \
94 __mcount(frompc, selfpc); \
95 }
96 #else /* !__GNUCLIKE_ASM */
97 #define MCOUNT
98 #endif /* __GNUCLIKE_ASM */
99
100 #endif /* _KERNEL */
101
102 #endif /* !_MACHINE_PROFILE_H_ */
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