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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  * $FreeBSD$
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_ */