Commit | Line | Data |
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eb8dd88e BJ |
1 | /* Copyright (c) 1979 Regents of the University of California */ |
2 | # | |
3 | /* | |
4 | * pi - Pascal interpreter code translator | |
5 | * | |
6 | * Charles Haley, Bill Joy UCB | |
7 | * Version 1.2 November 1978 | |
8 | * | |
9 | * | |
10 | * pxp - Pascal execution profiler | |
11 | * | |
12 | * Bill Joy UCB | |
13 | * Version 1.2 November 1978 | |
14 | */ | |
15 | ||
16 | #include "0.h" | |
17 | #include "yy.h" | |
18 | ||
19 | int line = 1; | |
20 | ||
21 | /* | |
22 | * Yymain initializes each of the utility | |
23 | * clusters and then starts the processing | |
24 | * by calling yyparse. | |
25 | */ | |
26 | yymain() | |
27 | { | |
28 | ||
29 | /* | |
30 | * Initialize the scanner | |
31 | */ | |
32 | #ifdef PXP | |
33 | if (bracket == 0) { | |
34 | #endif | |
35 | if (getline() == -1) { | |
36 | Perror(filename, "No lines in file"); | |
37 | pexit(NOSTART); | |
38 | } | |
39 | #ifdef PXP | |
40 | } else | |
41 | yyline = 0; | |
42 | #endif | |
43 | ||
44 | #ifdef PI | |
45 | magic(); | |
46 | ||
47 | #endif | |
48 | /* | |
49 | * Initialize the clusters | |
50 | * | |
51 | initstring(); | |
52 | */ | |
53 | inithash(); | |
54 | inittree(); | |
55 | #ifdef PI | |
56 | initnl(); | |
57 | #endif | |
58 | ||
59 | /* | |
60 | * Process the input | |
61 | */ | |
62 | yyparse(); | |
63 | #ifdef PI | |
64 | magic2(); | |
65 | #ifdef DEBUG | |
66 | dumpnl(0); | |
67 | #endif | |
68 | #endif | |
69 | #ifdef PXP | |
70 | prttab(); | |
71 | if (onefile) { | |
72 | extern int outcol; | |
73 | ||
74 | if (outcol) | |
75 | putchar('\n'); | |
76 | flush(); | |
77 | if (eflg) { | |
78 | writef(2, "File not rewritten because of errors\n"); | |
79 | pexit(ERRS); | |
80 | } | |
81 | signal(1, 1); | |
82 | signal(2, 1); | |
83 | copyfile(); | |
84 | } | |
85 | #endif | |
86 | pexit(eflg ? ERRS : AOK); | |
87 | } | |
88 | ||
89 | #ifdef PXP | |
90 | copyfile() | |
91 | { | |
92 | register int c; | |
93 | char buf[BUFSIZ]; | |
94 | ||
95 | if (freopen(stdoutn, "r", stdin) == NULL) { | |
96 | perror(stdoutn); | |
97 | pexit(ERRS); | |
98 | } | |
99 | if (freopen(firstname, "w", stdout) == NULL) { | |
100 | perror(firstname); | |
101 | pexit(ERRS); | |
102 | } | |
103 | while ((c = getchar()) > 0) | |
104 | putchar(c); | |
105 | if (ferror(stdout)) | |
106 | perror(stdout); | |
107 | } | |
108 | #endif | |
109 | ||
110 | static | |
111 | struct { | |
112 | int magic; | |
113 | unsigned txt_size; | |
114 | unsigned data_size; | |
115 | unsigned bss_size; | |
116 | unsigned syms_size; | |
117 | unsigned entry_point; | |
118 | unsigned tr_size; | |
119 | unsigned dr_size; | |
120 | } header; | |
121 | ||
122 | #ifdef PI | |
123 | magic() | |
124 | { | |
125 | ||
126 | /* | |
127 | * this is the size of /usr/lib/npxheader | |
128 | */ | |
129 | #define HEAD_BYTES 1024 | |
130 | short buf[HEAD_BYTES / sizeof ( short )]; | |
131 | unsigned *ubuf = buf; | |
132 | register int hf, i; | |
133 | ||
134 | hf = open("/usr/lib/npx_header", 0); | |
135 | if (hf >= 0 && read(hf, buf, HEAD_BYTES) > sizeof header) { | |
136 | header.magic = ubuf[0]; | |
137 | header.txt_size = ubuf[1]; | |
138 | header.data_size = ubuf[2]; | |
139 | header.bss_size = ubuf[3]; | |
140 | header.syms_size = ubuf[4]; | |
141 | header.entry_point = ubuf[5]; | |
142 | header.tr_size = ubuf[6]; | |
143 | header.dr_size = ubuf[7]; | |
144 | for (i = 0; i < HEAD_BYTES / sizeof ( short ); i++) | |
145 | word(buf[i]); | |
146 | } | |
147 | close(hf); | |
148 | word(0404); | |
149 | } | |
150 | ||
151 | magic2() | |
152 | { | |
153 | short i; | |
154 | ||
155 | if (header.magic != 0407) | |
156 | panic ( "magic2" ); | |
157 | pflush(); | |
158 | lseek(ofil, 0l, 0); | |
159 | header.data_size = ( unsigned ) lc - header.txt_size; | |
160 | header.data_size =- sizeof header; | |
161 | write(ofil, &header, sizeof header); | |
162 | lseek(ofil, ( long ) ( HEAD_BYTES - sizeof ( short ) ) , 0); | |
163 | i = ( ( unsigned ) lc) - HEAD_BYTES; | |
164 | write(ofil, &i, 2); | |
165 | } | |
166 | #endif | |
167 | ||
168 | #ifdef PXP | |
169 | writef(i, cp) | |
170 | { | |
171 | ||
172 | write(i, cp, strlen(cp)); | |
173 | } | |
174 | #endif |