Commit | Line | Data |
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510f6c6a | 1 | static char *sccsid = "@(#)main.c 2.2 (Berkeley) %G%"; |
d6a5dbff PK |
2 | /* Copyright (c) 1979 Regents of the University of California */ |
3 | # | |
4 | /* | |
5 | * pxp - Pascal execution profiler | |
6 | * | |
7 | * Bill Joy UCB | |
8 | * Version 1.2 January 1979 | |
9 | */ | |
10 | ||
11 | #include "0.h" | |
12 | ||
13 | /* | |
14 | * This program is described in detail in the "PXP 1.0 Implementation Notes" | |
15 | * | |
16 | * The structure of pxp is very similar to that of the translator pi. | |
17 | * The major new pieces here are a set of profile data maintenance | |
18 | * routines in the file pmon.c and a set of pretty printing utility | |
19 | * routines in the file pp.c. | |
20 | * The semantic routines of pi have been rewritten to do a simple | |
21 | * reformatting tree walk, the parsing and scanning remains | |
22 | * the same. | |
23 | * | |
24 | * This version does not place more than one statement per line and | |
25 | * is not very intelligent about folding long lines, with only | |
26 | * an ad hoc way of folding case label list and enumerated type | |
27 | * declarations being implemented. | |
28 | */ | |
29 | ||
30 | char usagestr[] = | |
31 | "pxp [ -acdefjntuw_ ] [ -23456789 ] [ -z [ name ... ] ] name.p"; | |
32 | char *howfile = "/usr/lib/how_pxp"; | |
33 | char *stdoutn = "Standard output"; | |
34 | ||
35 | int unit = 4; | |
36 | ||
37 | FILE *ibuf; | |
38 | extern char errout; | |
39 | ||
40 | /* | |
41 | * Main program for pxp. | |
42 | * Process options, then call yymain | |
43 | * to do all the real work. | |
44 | */ | |
45 | FILE *ibp; | |
46 | main(argc, argv) | |
47 | int argc; | |
48 | char *argv[]; | |
49 | { | |
50 | register char *cp; | |
51 | register c; | |
52 | ||
53 | if (argv[0][0] == 'a') | |
54 | howfile =+ 9; | |
55 | argc--, argv++; | |
56 | if (argc == 0) { | |
57 | execl("/bin/cat", "cat", howfile, 0); | |
58 | goto usage; | |
59 | } | |
60 | while (argc > 0) { | |
61 | cp = argv[0]; | |
62 | if (*cp++ != '-') | |
63 | break; | |
64 | while (c = *cp++) switch (c) { | |
65 | #ifdef DEBUG | |
66 | case 'T': | |
67 | typetest++; | |
68 | continue; | |
69 | case 'A': | |
70 | testtrace++; | |
71 | case 'F': | |
72 | fulltrace++; | |
73 | case 'E': | |
74 | errtrace++; | |
75 | continue; | |
76 | case 'C': | |
77 | yycosts(); | |
78 | pexit(NOSTART); | |
79 | case 'U': | |
80 | yyunique++; | |
81 | continue; | |
82 | #endif | |
83 | case 'a': | |
84 | all++; | |
85 | continue; | |
86 | case 'c': | |
87 | core++; | |
88 | continue; | |
89 | case 'd': | |
90 | nodecl++; | |
91 | continue; | |
92 | case 'e': | |
93 | noinclude = -1; | |
94 | continue; | |
95 | case 'f': | |
96 | full++; | |
97 | continue; | |
98 | case 'j': | |
99 | justify++; | |
100 | continue; | |
101 | case 'l': | |
102 | case 'n': | |
103 | togopt(c); | |
104 | continue; | |
105 | case 'o': | |
106 | onefile++; | |
107 | continue; | |
108 | case 's': | |
109 | stripcomm++; | |
110 | continue; | |
111 | case 't': | |
112 | table++; | |
113 | continue; | |
114 | case 'u': | |
115 | case 'w': | |
116 | togopt(c); | |
117 | continue; | |
118 | case 'z': | |
119 | profile++; | |
120 | pflist = argv + 1; | |
121 | pflstc = 0; | |
122 | while (argc > 1) { | |
123 | if (dotted(argv[1], 'p')) | |
124 | break; | |
125 | pflstc++, argc--, argv++; | |
126 | } | |
127 | if (pflstc == 0) | |
128 | togopt(c); | |
129 | else | |
130 | nojunk++; | |
131 | continue; | |
132 | case '_': | |
133 | underline++; | |
134 | continue; | |
c7096a14 PK |
135 | # ifdef RMOTHERS |
136 | case 'O': | |
137 | rmothers++; | |
138 | continue; | |
139 | # endif RMOTHERS | |
d6a5dbff PK |
140 | default: |
141 | if (c >= '2' && c <= '9') { | |
142 | unit = c - '0'; | |
143 | continue; | |
144 | } | |
145 | usage: | |
146 | Perror("Usage", usagestr); | |
147 | exit(1); | |
148 | } | |
149 | argc--, argv++; | |
150 | } | |
151 | if (core && !profile && !table) | |
152 | profile++; | |
153 | if (argc == 0 || argc > 2) | |
154 | goto usage; | |
155 | if (profile || table) { | |
156 | noinclude = 0; | |
157 | if (argc == 2) { | |
158 | argc--; | |
159 | getit(argv[1]); | |
160 | } else | |
161 | getit(core ? "core" : "pmon.out"); | |
162 | } else | |
163 | noinclude++; | |
164 | if (argc != 1) | |
165 | goto usage; | |
166 | firstname = filename = argv[0]; | |
167 | if (dotted(filename, 'i')) { | |
168 | if (profile || table) | |
169 | goto usage; | |
170 | noinclude = 1; | |
171 | bracket++; | |
172 | } else if (!dotted(filename, 'p')) { | |
173 | Perror(filename, "Name must end in '.p'"); | |
174 | exit(1); | |
175 | } | |
176 | if ((ibuf = fopen(filename, "r")) == NULL) | |
177 | perror(filename), pexit(NOSTART); | |
178 | ibp = ibuf; | |
179 | if (onefile) { | |
180 | int onintr(); | |
181 | ||
182 | cp = (stdoutn = "/tmp/pxp00000") + 13; | |
183 | signal(2, onintr); | |
184 | for (c = getpid(); c; c =/ 10) | |
185 | *--cp =| (c % 10); | |
186 | if (freopen(stdoutn, "w", stdout) == NULL) | |
187 | bad: | |
188 | perror(stdoutn), exit(1); | |
189 | } else { | |
190 | extern char _sobuf[BUFSIZ]; | |
191 | setbuf(stdout, _sobuf); | |
192 | } | |
193 | if (profile || opt('l')) { | |
194 | opt('n')++; | |
195 | yysetfile(filename); | |
196 | opt('n')--; | |
197 | } else | |
198 | lastname = filename; | |
199 | errout = 2; | |
200 | yymain(); | |
201 | /* No return */ | |
202 | } | |
203 | ||
204 | /* | |
205 | * Put a header on a top of a page | |
206 | */ | |
207 | header() | |
208 | { | |
209 | extern char version[]; | |
210 | static char reenter; | |
211 | extern int outcol; | |
212 | ||
510f6c6a | 213 | gettime(filename); |
d6a5dbff PK |
214 | if (reenter) { |
215 | if (outcol) | |
216 | putchar('\n'); | |
217 | putchar('\f'); | |
218 | } | |
219 | reenter++; | |
220 | if (profile || table) { | |
7c79ee59 PK |
221 | printf("Berkeley Pascal PXP -- Version %s\n\n%s %s\n\n", |
222 | version, myctime(&tvec), filename); | |
d6a5dbff PK |
223 | printf("Profiled %s\n\n", myctime(&ptvec)); |
224 | } | |
225 | } | |
226 | ||
227 | char ugh[] = "Fatal error in pxp\n"; | |
228 | /* | |
229 | * Exit from the Pascal system. | |
230 | * We throw in an ungraceful termination | |
231 | * message if c > 1 indicating a severe | |
232 | * error such as running out of memory | |
233 | * or an internal inconsistency. | |
234 | */ | |
235 | pexit(c) | |
236 | int c; | |
237 | { | |
238 | register char *cp; | |
239 | extern int outcol; | |
240 | ||
241 | if (stdoutn[0] == '/') | |
242 | unlink(stdoutn); | |
243 | if (outcol) | |
244 | putchar('\n'); | |
245 | flush(); | |
246 | if (c == DIED) | |
247 | write(2, ugh, sizeof ugh); | |
248 | exit(c); | |
249 | } | |
250 | ||
251 | onintr() | |
252 | { | |
253 | ||
254 | pexit(DIED); | |
255 | } | |
256 | ||
257 | puthedr() | |
258 | { | |
259 | ||
260 | yysetfile(filename); | |
261 | } |