Commit | Line | Data |
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fc2afb21 BJ |
1 | /* Copyright (c) 1979 Regents of the University of California */ |
2 | # | |
3 | /* | |
4 | * pxp - Pascal execution profiler | |
5 | * | |
6 | * Bill Joy UCB | |
7 | * Version 1.2 January 1979 | |
8 | */ | |
9 | ||
10 | #include "0.h" | |
11 | ||
12 | /* | |
13 | * This program is described in detail in the "PXP 1.0 Implementation Notes" | |
14 | * | |
15 | * The structure of pxp is very similar to that of the translator pi. | |
16 | * The major new pieces here are a set of profile data maintenance | |
17 | * routines in the file pmon.c and a set of pretty printing utility | |
18 | * routines in the file pp.c. | |
19 | * The semantic routines of pi have been rewritten to do a simple | |
20 | * reformatting tree walk, the parsing and scanning remains | |
21 | * the same. | |
22 | * | |
23 | * This version does not place more than one statement per line and | |
24 | * is not very intelligent about folding long lines, with only | |
25 | * an ad hoc way of folding case label list and enumerated type | |
26 | * declarations being implemented. | |
27 | */ | |
28 | ||
29 | char usagestr[] = | |
30 | "pxp [ -acdefjntuw_ ] [ -23456789 ] [ -z [ name ... ] ] name.p"; | |
31 | char *howfile = "/usr/lib/how_pxp"; | |
32 | char *stdoutn = "Standard output"; | |
33 | ||
34 | int unit = 4; | |
35 | ||
36 | FILE *ibuf; | |
37 | extern char errout; | |
38 | ||
39 | /* | |
40 | * Main program for pxp. | |
41 | * Process options, then call yymain | |
42 | * to do all the real work. | |
43 | */ | |
44 | FILE *ibp; | |
45 | main(argc, argv) | |
46 | int argc; | |
47 | char *argv[]; | |
48 | { | |
49 | register char *cp; | |
50 | register c; | |
51 | ||
52 | if (argv[0][0] == 'a') | |
53 | howfile =+ 9; | |
54 | argc--, argv++; | |
55 | if (argc == 0) { | |
56 | execl("/bin/cat", "cat", howfile, 0); | |
57 | goto usage; | |
58 | } | |
59 | while (argc > 0) { | |
60 | cp = argv[0]; | |
61 | if (*cp++ != '-') | |
62 | break; | |
63 | while (c = *cp++) switch (c) { | |
64 | #ifdef DEBUG | |
65 | case 'T': | |
66 | typetest++; | |
67 | continue; | |
68 | case 'A': | |
69 | testtrace++; | |
70 | case 'F': | |
71 | fulltrace++; | |
72 | case 'E': | |
73 | errtrace++; | |
74 | continue; | |
75 | case 'C': | |
76 | yycosts(); | |
77 | pexit(NOSTART); | |
78 | case 'U': | |
79 | yyunique++; | |
80 | continue; | |
81 | #endif | |
82 | case 'a': | |
83 | all++; | |
84 | continue; | |
85 | case 'c': | |
86 | core++; | |
87 | continue; | |
88 | case 'd': | |
89 | nodecl++; | |
90 | continue; | |
91 | case 'e': | |
92 | noinclude = -1; | |
93 | continue; | |
94 | case 'f': | |
95 | full++; | |
96 | continue; | |
97 | case 'j': | |
98 | justify++; | |
99 | continue; | |
100 | case 'l': | |
101 | case 'n': | |
102 | togopt(c); | |
103 | continue; | |
104 | case 'o': | |
105 | onefile++; | |
106 | continue; | |
107 | case 's': | |
108 | stripcomm++; | |
109 | continue; | |
110 | case 't': | |
111 | table++; | |
112 | continue; | |
113 | case 'u': | |
114 | case 'w': | |
115 | togopt(c); | |
116 | continue; | |
117 | case 'z': | |
118 | profile++; | |
119 | pflist = argv + 1; | |
120 | pflstc = 0; | |
121 | while (argc > 1) { | |
122 | if (dotted(argv[1], 'p')) | |
123 | break; | |
124 | pflstc++, argc--, argv++; | |
125 | } | |
126 | if (pflstc == 0) | |
127 | togopt(c); | |
128 | else | |
129 | nojunk++; | |
130 | continue; | |
131 | case '_': | |
132 | underline++; | |
133 | continue; | |
134 | default: | |
135 | if (c >= '2' && c <= '9') { | |
136 | unit = c - '0'; | |
137 | continue; | |
138 | } | |
139 | usage: | |
140 | Perror("Usage", usagestr); | |
141 | exit(1); | |
142 | } | |
143 | argc--, argv++; | |
144 | } | |
145 | if (core && !profile && !table) | |
146 | profile++; | |
147 | if (argc == 0 || argc > 2) | |
148 | goto usage; | |
149 | if (profile || table) { | |
150 | noinclude = 0; | |
151 | if (argc == 2) { | |
152 | argc--; | |
153 | getit(argv[1]); | |
154 | } else | |
155 | getit(core ? "core" : "pmon.out"); | |
156 | } else | |
157 | noinclude++; | |
158 | if (argc != 1) | |
159 | goto usage; | |
160 | firstname = filename = argv[0]; | |
161 | if (dotted(filename, 'i')) { | |
162 | if (profile || table) | |
163 | goto usage; | |
164 | noinclude = 1; | |
165 | bracket++; | |
166 | } else if (!dotted(filename, 'p')) { | |
167 | Perror(filename, "Name must end in '.p'"); | |
168 | exit(1); | |
169 | } | |
170 | if ((ibuf = fopen(filename, "r")) == NULL) | |
171 | perror(filename), pexit(NOSTART); | |
172 | ibp = ibuf; | |
173 | if (onefile) { | |
174 | int onintr(); | |
175 | ||
176 | cp = (stdoutn = "/tmp/pxp00000") + 13; | |
177 | signal(2, onintr); | |
178 | for (c = getpid(); c; c =/ 10) | |
179 | *--cp =| (c % 10); | |
180 | if (freopen(stdoutn, "w", stdout) == NULL) | |
181 | bad: | |
182 | perror(stdoutn), exit(1); | |
183 | } else { | |
184 | extern char _sobuf[BUFSIZ]; | |
185 | setbuf(stdout, _sobuf); | |
186 | } | |
187 | if (profile || opt('l')) { | |
188 | opt('n')++; | |
189 | yysetfile(filename); | |
190 | opt('n')--; | |
191 | } else | |
192 | lastname = filename; | |
193 | errout = 2; | |
194 | yymain(); | |
195 | /* No return */ | |
196 | } | |
197 | ||
198 | /* | |
199 | * Put a header on a top of a page | |
200 | */ | |
201 | header() | |
202 | { | |
203 | extern char version[]; | |
204 | static char reenter; | |
205 | extern int outcol; | |
206 | ||
207 | gettime(); | |
208 | if (reenter) { | |
209 | if (outcol) | |
210 | putchar('\n'); | |
211 | putchar('\f'); | |
212 | } | |
213 | reenter++; | |
214 | if (profile || table) { | |
215 | printf("Berkeley Pascal PXP -- Version 1.1 (%s)\n\n%s %s\n\n", version, myctime(&tvec), filename); | |
216 | printf("Profiled %s\n\n", myctime(&ptvec)); | |
217 | } | |
218 | } | |
219 | ||
220 | char ugh[] = "Fatal error in pxp\n"; | |
221 | /* | |
222 | * Exit from the Pascal system. | |
223 | * We throw in an ungraceful termination | |
224 | * message if c > 1 indicating a severe | |
225 | * error such as running out of memory | |
226 | * or an internal inconsistency. | |
227 | */ | |
228 | pexit(c) | |
229 | int c; | |
230 | { | |
231 | register char *cp; | |
232 | extern int outcol; | |
233 | ||
234 | if (stdoutn[0] == '/') | |
235 | unlink(stdoutn); | |
236 | if (outcol) | |
237 | putchar('\n'); | |
238 | flush(); | |
239 | if (c == DIED) | |
240 | write(2, ugh, sizeof ugh); | |
241 | exit(c); | |
242 | } | |
243 | ||
244 | onintr() | |
245 | { | |
246 | ||
247 | pexit(DIED); | |
248 | } | |
249 | ||
250 | puthedr() | |
251 | { | |
252 | ||
253 | yysetfile(filename); | |
254 | } |