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5ec4a8f3 NC |
1 | /* |
2 | * Copyright (c) 1983, 1991, 1993, 2001 | |
3 | * The Regents of the University of California. All rights reserved. | |
252b5132 RH |
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. | |
5ec4a8f3 | 13 | * 3. Neither the name of the University nor the names of its contributors |
252b5132 RH |
14 | * may be used to endorse or promote products derived from this software |
15 | * without specific prior written permission. | |
16 | * | |
17 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
18 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
23 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
24 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
25 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
27 | * SUCH DAMAGE. | |
252b5132 RH |
28 | */ |
29 | #ifndef gmon_h | |
30 | #define gmon_h | |
31 | ||
e7e2dd92 NC |
32 | /* Size of the 4.4BSD gmon header */ |
33 | #define GMON_HDRSIZE_BSD44_32 (4 + 4 + 4 + 4 + 4 + (3 * 4)) | |
34 | #define GMON_HDRSIZE_BSD44_64 (8 + 8 + 4 + 4 + 4 + (3 * 4)) | |
252b5132 | 35 | |
e7e2dd92 NC |
36 | #if 0 /* For documentation purposes only. */ |
37 | struct raw_phdr | |
38 | { | |
39 | char low_pc[sizeof(void *)]; /* base pc address of sample buffer */ | |
40 | char high_pc[sizeof(void *)];/* max pc address of sampled buffer */ | |
41 | char ncnt[4]; /* size of sample buffer (plus this | |
42 | header) */ | |
43 | ||
44 | char version[4]; /* version number */ | |
45 | char profrate[4]; /* profiling clock rate */ | |
46 | char spare[3*4]; /* reserved */ | |
47 | }; | |
48 | #endif | |
252b5132 RH |
49 | |
50 | #define GMONVERSION 0x00051879 | |
51 | ||
e7e2dd92 NC |
52 | /* Size of the old BSD gmon header */ |
53 | #define GMON_HDRSIZE_OLDBSD_32 (4 + 4 + 4) | |
54 | ||
55 | /* FIXME: Checking host compiler defines here means that we can't | |
56 | use a cross gprof alpha OSF. */ | |
57 | #if defined(__alpha__) && defined (__osf__) | |
58 | #define GMON_HDRSIZE_OLDBSD_64 (8 + 8 + 4 + 4) | |
59 | #else | |
60 | #define GMON_HDRSIZE_OLDBSD_64 (8 + 8 + 4) | |
61 | #endif | |
252b5132 | 62 | |
e7e2dd92 NC |
63 | #if 0 /* For documentation purposes only. */ |
64 | struct old_raw_phdr | |
65 | { | |
66 | char low_pc[sizeof(void *)]; /* base pc address of sample buffer */ | |
67 | char high_pc[sizeof(void *)];/* max pc address of sampled buffer */ | |
68 | char ncnt[4]; /* size of sample buffer (plus this | |
69 | header) */ | |
252b5132 | 70 | #if defined (__alpha__) && defined (__osf__) |
e7e2dd92 NC |
71 | /* |
72 | * DEC's OSF v3.0 uses 4 bytes of padding to bring the header to | |
73 | * a size that is a multiple of 8. | |
74 | */ | |
75 | char pad[4]; | |
76 | #endif | |
77 | }; | |
252b5132 | 78 | #endif |
252b5132 RH |
79 | |
80 | /* | |
81 | * Histogram counters are unsigned shorts: | |
82 | */ | |
83 | #define HISTCOUNTER unsigned short | |
84 | ||
85 | /* | |
86 | * Fraction of text space to allocate for histogram counters here, 1/2: | |
87 | */ | |
88 | #define HISTFRACTION 2 | |
89 | ||
90 | /* | |
91 | * Fraction of text space to allocate for from hash buckets. The | |
92 | * value of HASHFRACTION is based on the minimum number of bytes of | |
93 | * separation between two subroutine call points in the object code. | |
94 | * Given MIN_SUBR_SEPARATION bytes of separation the value of | |
95 | * HASHFRACTION is calculated as: | |
96 | * | |
97 | * HASHFRACTION = MIN_SUBR_SEPARATION / (2 * sizeof(short) - 1); | |
98 | * | |
99 | * For the VAX, the shortest two call sequence is: | |
100 | * | |
101 | * calls $0,(r0) | |
102 | * calls $0,(r0) | |
103 | * | |
0eee5820 | 104 | * which is separated by only three bytes, thus HASHFRACTION is |
252b5132 RH |
105 | * calculated as: |
106 | * | |
107 | * HASHFRACTION = 3 / (2 * 2 - 1) = 1 | |
108 | * | |
109 | * Note that the division above rounds down, thus if MIN_SUBR_FRACTION | |
110 | * is less than three, this algorithm will not work! | |
111 | */ | |
112 | #define HASHFRACTION 1 | |
113 | ||
114 | /* | |
115 | * Percent of text space to allocate for tostructs with a minimum: | |
116 | */ | |
117 | #define ARCDENSITY 2 | |
118 | #define MINARCS 50 | |
119 | ||
120 | struct tostruct | |
121 | { | |
122 | char *selfpc; | |
123 | int count; | |
124 | unsigned short link; | |
125 | }; | |
126 | ||
127 | /* | |
128 | * A raw arc, with pointers to the calling site and the called site | |
129 | * and a count. Everything is defined in terms of characters so | |
130 | * as to get a packed representation (otherwise, different compilers | |
131 | * might introduce different padding): | |
132 | */ | |
e7e2dd92 NC |
133 | #if 0 /* For documentation purposes only. */ |
134 | struct raw_arc | |
135 | { | |
136 | char from_pc[sizeof(void *)]; | |
137 | char self_pc[sizeof(void *)]; | |
138 | char count[sizeof(long)]; | |
139 | }; | |
140 | #endif | |
252b5132 RH |
141 | |
142 | /* | |
143 | * General rounding functions: | |
144 | */ | |
145 | #define ROUNDDOWN(x,y) (((x)/(y))*(y)) | |
146 | #define ROUNDUP(x,y) ((((x)+(y)-1)/(y))*(y)) | |
147 | ||
148 | #endif /* gmon_h */ |