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616915dd | 1 | /* |
2 | ** LCLint - annotation-assisted static program checker | |
28bf4b0b | 3 | ** Copyright (C) 1994-2001 University of Virginia, |
616915dd | 4 | ** Massachusetts Institute of Technology |
5 | ** | |
6 | ** This program is free software; you can redistribute it and/or modify it | |
7 | ** under the terms of the GNU General Public License as published by the | |
8 | ** Free Software Foundation; either version 2 of the License, or (at your | |
9 | ** option) any later version. | |
10 | ** | |
11 | ** This program is distributed in the hope that it will be useful, but | |
12 | ** WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | ** General Public License for more details. | |
15 | ** | |
16 | ** The GNU General Public License is available from http://www.gnu.org/ or | |
17 | ** the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, | |
18 | ** MA 02111-1307, USA. | |
19 | ** | |
20 | ** For information on lclint: lclint-request@cs.virginia.edu | |
21 | ** To report a bug: lclint-bug@cs.virginia.edu | |
22 | ** For more information: http://lclint.cs.virginia.edu | |
23 | */ | |
24 | /* | |
25 | ** cppmain.c | |
26 | */ | |
27 | /* CPP main program, using CPP Library. | |
28 | Copyright (C) 1995 Free Software Foundation, Inc. | |
29 | Written by Per Bothner, 1994-95. | |
30 | ||
31 | This program is free software; you can redistribute it and/or modify it | |
32 | under the terms of the GNU General Public License as published by the | |
33 | Free Software Foundation; either version 2, or (at your option) any | |
34 | later version. | |
35 | ||
36 | This program is distributed in the hope that it will be useful, | |
37 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
38 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
39 | GNU General Public License for more details. | |
40 | ||
41 | You should have received a copy of the GNU General Public License | |
42 | along with this program; if not, write to the Free Software | |
43 | Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
44 | ||
45 | In other words, you are welcome to use, share and improve this program. | |
46 | You are forbidden to forbid anyone else to use, share and improve | |
47 | what you give them. Help stamp out software-hoarding! */ | |
48 | ||
49 | # include "lclintMacros.nf" | |
50 | # include "llbasic.h" | |
616915dd | 51 | # include "cpplib.h" |
52 | # include "cpphash.h" | |
53 | # include "cpperror.h" | |
54 | # include "llmain.h" | |
55 | ||
56 | # include <stdio.h> | |
57 | ||
58 | # ifdef WIN32 | |
59 | /*@-ansireserved@*/ | |
60 | extern /*@external@*/ /*@observer@*/ char *getenv (const char *); | |
61 | /*@=ansireserved@*/ | |
62 | # endif | |
63 | ||
64 | /* char *progname; */ | |
65 | ||
66 | cppReader g_cppState; | |
67 | ||
68 | #ifdef abort | |
69 | /* More 'friendly' abort that prints the line and file. | |
70 | config.h can #define abort fancy_abort if you like that sort of thing. */ | |
71 | ||
72 | void | |
73 | fancy_abort () | |
74 | { | |
75 | fatal ("Internal gcc abort."); | |
76 | } | |
77 | #endif | |
78 | ||
79 | void cppReader_initMod () | |
80 | { | |
81 | struct cppOptions *opts = (struct cppOptions *) dmalloc (sizeof (*opts)); | |
82 | ||
83 | cppReader_init (&g_cppState); | |
84 | llassert (g_cppState.opts == NULL); | |
85 | g_cppState.opts = opts; | |
86 | ||
87 | cppOptions_init (opts); | |
88 | /*@-compdef@*/ /* g_cppState is not yet innitialized */ | |
89 | } /*@=compdef@*/ | |
90 | ||
91 | void cppReader_initialize () | |
92 | { | |
93 | cppReader_initializeReader (&g_cppState); | |
94 | } | |
95 | ||
96 | int cppProcess (/*@dependent@*/ cstring infile, | |
97 | /*@dependent@*/ cstring outfile) | |
98 | { | |
99 | FILE *ofile; | |
100 | struct cppOptions *opts = CPPOPTIONS (&g_cppState); | |
101 | ||
102 | opts->out_fname = outfile; | |
103 | opts->in_fname = infile; | |
104 | opts->out_fname = outfile; | |
105 | ||
106 | if (cppFatalErrors (&g_cppState)) | |
107 | { | |
108 | llexit (LLFAILURE); | |
109 | } | |
110 | ||
111 | g_cppState.show_column = TRUE; | |
112 | ||
113 | if (cppReader_startProcess (&g_cppState, opts->in_fname) == 0) | |
114 | { | |
115 | llexit (LLFAILURE); | |
116 | } | |
117 | ||
118 | ofile = fopen (cstring_toCharsSafe (outfile), "w"); | |
119 | ||
120 | if (ofile == NULL) | |
121 | { | |
122 | fileTable_noDelete (context_fileTable (), outfile); | |
123 | llfatalerror (message ("Cannot create temporary file for " | |
124 | "pre-processor output. Trying to " | |
125 | "open: %s. Use -tmpdir to change " | |
126 | "the directory for temporary files.", | |
127 | outfile)); | |
128 | } | |
129 | ||
130 | for (;;) | |
131 | { | |
132 | enum cpp_token kind; | |
133 | ||
134 | llassert (g_cppState.token_buffer != NULL); | |
135 | ||
136 | if (!opts->no_output) | |
137 | { | |
138 | (void) fwrite (g_cppState.token_buffer, (size_t) 1, | |
139 | cppReader_getWritten (&g_cppState), ofile); | |
140 | } | |
141 | ||
142 | cppReader_setWritten (&g_cppState, 0); | |
143 | kind = cppGetToken (&g_cppState); | |
144 | ||
145 | if (kind == CPP_EOF) | |
146 | break; | |
147 | } | |
148 | ||
149 | cppReader_finish (&g_cppState); | |
150 | check (fclose (ofile) == 0); | |
151 | ||
b37cf05e | 152 | /* Restore the original definition table. */ |
616915dd | 153 | |
154 | if (!context_getFlag (FLG_SINGLEINCLUDE)) | |
155 | { | |
156 | cppReader_restoreHashtab (); | |
157 | } | |
158 | ||
159 | ||
160 | /* Undefine everything from this file! */ | |
161 | ||
162 | if (g_cppState.errors != 0) { | |
163 | return -1; | |
164 | } | |
165 | ||
166 | return 0; | |
167 | } | |
168 | ||
169 | void cppAddIncludeDir (cstring dir) | |
170 | { | |
171 | /* -I option (Add directory to include path) */ | |
172 | struct file_name_list *dirtmp = (struct file_name_list *) dmalloc (sizeof (*dirtmp)); | |
173 | ||
174 | DPRINTF (("Add include: %s", dir)); | |
175 | ||
176 | dirtmp->next = 0; /* New one goes on the end */ | |
177 | dirtmp->control_macro = 0; | |
178 | dirtmp->c_system_include_path = FALSE; | |
179 | ||
180 | /* This copy is necessary...but shouldn't be? */ | |
181 | /*@-onlytrans@*/ | |
182 | dirtmp->fname = cstring_copy (dir); | |
183 | /*@=onlytrans@*/ | |
184 | ||
185 | dirtmp->got_name_map = FALSE; | |
186 | cppReader_addIncludeChain (&g_cppState, dirtmp); | |
187 | } | |
188 | ||
189 | void cppDoDefine (cstring str) | |
190 | { | |
191 | cppBuffer *tbuf = g_cppState.buffer; | |
192 | ||
193 | g_cppState.buffer = NULL; | |
194 | cppReader_define (&g_cppState, cstring_toCharsSafe (str)); | |
195 | g_cppState.buffer = tbuf; | |
196 | } | |
197 | ||
198 | void cppDoUndefine (cstring str) | |
199 | { | |
200 | int sym_length; | |
cd7d9b17 | 201 | hashNode hp; |
616915dd | 202 | char *buf = cstring_toCharsSafe (str); |
203 | ||
204 | sym_length = cppReader_checkMacroName (&g_cppState, buf, | |
205 | cstring_makeLiteralTemp ("macro")); | |
206 | ||
207 | while ((hp = cppReader_lookup (buf, sym_length, -1)) != NULL) | |
208 | { | |
209 | /*@-exposetrans@*/ /*@-dependenttrans@*/ | |
210 | cppReader_deleteMacro (hp); | |
211 | /*@=exposetrans@*/ /*@=dependenttrans@*/ | |
212 | } | |
213 | } | |
214 | ||
215 | void cppReader_saveDefinitions () | |
216 | { | |
217 | if (!context_getFlag (FLG_SINGLEINCLUDE)) | |
218 | { | |
219 | cppReader_saveHashtab (); | |
220 | } | |
221 | } |