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15637ed4 RG |
1 | /*- |
2 | * This code is derived from software copyrighted by the Free Software | |
3 | * Foundation. | |
4 | * | |
5 | * Modified 1991 by Donn Seeley at UUNET Technologies, Inc. | |
6 | */ | |
7 | ||
8 | #ifndef lint | |
9 | static char sccsid[] = "@(#)cc.c 6.7 (Berkeley) 5/8/91"; | |
10 | #endif /* not lint */ | |
11 | ||
12 | /*- | |
13 | Copyright (C) 1987,1989 Free Software Foundation, Inc. | |
14 | ||
15 | This file is part of GNU CC. | |
16 | ||
17 | GNU CC is free software; you can redistribute it and/or modify | |
18 | it under the terms of the GNU General Public License as published by | |
19 | the Free Software Foundation; either version 1, or (at your option) | |
20 | any later version. | |
21 | ||
22 | GNU CC is distributed in the hope that it will be useful, | |
23 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
24 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
25 | GNU General Public License for more details. | |
26 | ||
27 | You should have received a copy of the GNU General Public License | |
28 | along with GNU CC; see the file COPYING. If not, write to | |
29 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. | |
30 | ||
31 | This paragraph is here to try to keep Sun CC from dying. | |
32 | The number of chars here seems crucial!!!! */ | |
33 | ||
34 | void record_temp_file (); | |
35 | \f | |
36 | /* This program is the user interface to the C compiler and possibly to | |
37 | other compilers. It is used because compilation is a complicated procedure | |
38 | which involves running several programs and passing temporary files between | |
39 | them, forwarding the users switches to those programs selectively, | |
40 | and deleting the temporary files at the end. | |
41 | ||
42 | CC recognizes how to compile each input file by suffixes in the file names. | |
43 | Once it knows which kind of compilation to perform, the procedure for | |
44 | compilation is specified by a string called a "spec". | |
45 | ||
46 | Specs are strings containing lines, each of which (if not blank) | |
47 | is made up of a program name, and arguments separated by spaces. | |
48 | The program name must be exact and start from root, since no path | |
49 | is searched and it is unreliable to depend on the current working directory. | |
50 | Redirection of input or output is not supported; the subprograms must | |
51 | accept filenames saying what files to read and write. | |
52 | ||
53 | In addition, the specs can contain %-sequences to substitute variable text | |
54 | or for conditional text. Here is a table of all defined %-sequences. | |
55 | Note that spaces are not generated automatically around the results of | |
56 | expanding these sequences; therefore, you can concatenate them together | |
57 | or with constant text in a single argument. | |
58 | ||
59 | %% substitute one % into the program name or argument. | |
60 | %i substitute the name of the input file being processed. | |
61 | %b substitute the basename of the input file being processed. | |
62 | This is the substring up to (and not including) the last period. | |
63 | %g substitute the temporary-file-name-base. This is a string chosen | |
64 | once per compilation. Different temporary file names are made by | |
65 | concatenation of constant strings on the end, as in `%g.s'. | |
66 | %g also has the same effect of %d. | |
67 | %d marks the argument containing or following the %d as a | |
68 | temporary file name, so that that file will be deleted if CC exits | |
69 | successfully. Unlike %g, this contributes no text to the argument. | |
70 | %w marks the argument containing or following the %w as the | |
71 | "output file" of this compilation. This puts the argument | |
72 | into the sequence of arguments that %o will substitute later. | |
73 | %W{...} | |
74 | like %{...} but mark last argument supplied within | |
75 | as a file to be deleted on failure. | |
76 | %o substitutes the names of all the output files, with spaces | |
77 | automatically placed around them. You should write spaces | |
78 | around the %o as well or the results are undefined. | |
79 | %o is for use in the specs for running the linker. | |
80 | Input files whose names have no recognized suffix are not compiled | |
81 | at all, but they are included among the output files, so they will | |
82 | be linked. | |
83 | %p substitutes the standard macro predefinitions for the | |
84 | current target machine. Use this when running cpp. | |
85 | %P like %p, but puts `__' before and after the name of each macro. | |
86 | This is for ANSI C. | |
87 | %s current argument is the name of a library or startup file of some sort. | |
88 | Search for that file in a standard list of directories | |
89 | and substitute the full pathname found. | |
90 | %eSTR Print STR as an error message. STR is terminated by a newline. | |
91 | Use this when inconsistent options are detected. | |
92 | %a process ASM_SPEC as a spec. | |
93 | This allows config.h to specify part of the spec for running as. | |
94 | %l process LINK_SPEC as a spec. | |
95 | %L process LIB_SPEC as a spec. | |
96 | %S process STARTFILE_SPEC as a spec. A capital S is actually used here. | |
97 | %E process ENDFILE_SPEC as a spec. A capital E is actually used here. | |
98 | %c process SIGNED_CHAR_SPEC as a spec. | |
99 | %C process CPP_SPEC as a spec. A capital C is actually used here. | |
100 | %1 process CC1_SPEC as a spec. | |
101 | %{S} substitutes the -S switch, if that switch was given to CC. | |
102 | If that switch was not specified, this substitutes nothing. | |
103 | Here S is a metasyntactic variable. | |
104 | %{S*} substitutes all the switches specified to CC whose names start | |
105 | with -S. This is used for -o, -D, -I, etc; switches that take | |
106 | arguments. CC considers `-o foo' as being one switch whose | |
107 | name starts with `o'. %{o*} would substitute this text, | |
108 | including the space; thus, two arguments would be generated. | |
109 | %{S:X} substitutes X, but only if the -S switch was given to CC. | |
110 | %{!S:X} substitutes X, but only if the -S switch was NOT given to CC. | |
111 | %{|S:X} like %{S:X}, but if no S switch, substitute `-'. | |
112 | %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'. | |
113 | ||
114 | The conditional text X in a %{S:X} or %{!S:X} construct may contain | |
115 | other nested % constructs or spaces, or even newlines. | |
116 | They are processed as usual, as described above. | |
117 | ||
118 | The character | is used to indicate that a command should be piped to | |
119 | the following command, but only if -pipe is specified. | |
120 | ||
121 | Note that it is built into CC which switches take arguments and which | |
122 | do not. You might think it would be useful to generalize this to | |
123 | allow each compiler's spec to say which switches take arguments. But | |
124 | this cannot be done in a consistent fashion. CC cannot even decide | |
125 | which input files have been specified without knowing which switches | |
126 | take arguments, and it must know which input files to compile in order | |
127 | to tell which compilers to run. | |
128 | ||
129 | CC also knows implicitly that arguments starting in `-l' are to | |
130 | be treated as compiler output files, and passed to the linker in their proper | |
131 | position among the other output files. | |
132 | ||
133 | */ | |
134 | ||
135 | #include <stdio.h> | |
136 | #include <sys/types.h> | |
137 | #include <signal.h> | |
138 | #include <sys/file.h> | |
139 | ||
140 | #include "config.h" | |
141 | #include "obstack.h" | |
142 | #include "gvarargs.h" | |
143 | ||
144 | #ifdef USG | |
145 | #ifndef R_OK | |
146 | #define R_OK 4 | |
147 | #define W_OK 2 | |
148 | #define X_OK 1 | |
149 | #endif | |
150 | ||
151 | #define vfork fork | |
152 | #endif /* USG */ | |
153 | ||
154 | #define obstack_chunk_alloc xmalloc | |
155 | #define obstack_chunk_free free | |
156 | extern int xmalloc (); | |
157 | extern void free (); | |
158 | ||
159 | /* If a stage of compilation returns an exit status >= 1, | |
160 | compilation of that file ceases. */ | |
161 | ||
162 | #define MIN_FATAL_STATUS 1 | |
163 | ||
164 | /* This is the obstack which we use to allocate many strings. */ | |
165 | ||
166 | struct obstack obstack; | |
167 | ||
168 | char *handle_braces (); | |
169 | char *save_string (); | |
170 | char *concat (); | |
171 | int do_spec (); | |
172 | int do_spec_1 (); | |
173 | char *find_file (); | |
174 | static char *find_exec_file (); | |
175 | void validate_switches (); | |
176 | void validate_all_switches (); | |
177 | void fancy_abort (); | |
178 | ||
179 | /* config.h can define ASM_SPEC to provide extra args to the assembler | |
180 | or extra switch-translations. */ | |
181 | #ifndef ASM_SPEC | |
182 | #define ASM_SPEC "" | |
183 | #endif | |
184 | ||
185 | /* config.h can define CPP_SPEC to provide extra args to the C preprocessor | |
186 | or extra switch-translations. */ | |
187 | #ifndef CPP_SPEC | |
188 | #define CPP_SPEC "" | |
189 | #endif | |
190 | ||
191 | /* config.h can define CC1_SPEC to provide extra args to cc1 | |
192 | or extra switch-translations. */ | |
193 | #ifndef CC1_SPEC | |
194 | #define CC1_SPEC "" | |
195 | #endif | |
196 | ||
197 | /* config.h can define LINK_SPEC to provide extra args to the linker | |
198 | or extra switch-translations. */ | |
199 | #ifndef LINK_SPEC | |
200 | #define LINK_SPEC "" | |
201 | #endif | |
202 | ||
203 | /* config.h can define LIB_SPEC to override the default libraries. */ | |
204 | #ifndef LIB_SPEC | |
205 | #define LIB_SPEC "%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}" | |
206 | #endif | |
207 | ||
208 | /* config.h can define ENDFILE_SPEC to override the default crtn files. */ | |
209 | #ifndef ENDFILE_SPEC | |
210 | #define ENDFILE_SPEC "" | |
211 | #endif | |
212 | ||
213 | /* config.h can define STARTFILE_SPEC to override the default crt0 files. */ | |
214 | #ifndef STARTFILE_SPEC | |
215 | #define STARTFILE_SPEC \ | |
216 | "%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}" | |
217 | #endif | |
218 | ||
219 | /* This spec is used for telling cpp whether char is signed or not. */ | |
220 | #define SIGNED_CHAR_SPEC \ | |
221 | (DEFAULT_SIGNED_CHAR ? "%{funsigned-char:-D__CHAR_UNSIGNED__}" \ | |
222 | : "%{!fsigned-char:-D__CHAR_UNSIGNED__}") | |
223 | ||
224 | /* This defines which switch letters take arguments. */ | |
225 | ||
226 | #ifndef SWITCH_TAKES_ARG | |
227 | #define SWITCH_TAKES_ARG(CHAR) \ | |
228 | ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \ | |
229 | || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \ | |
230 | || (CHAR) == 'I' || (CHAR) == 'Y' || (CHAR) == 'm' \ | |
231 | || (CHAR) == 'L' || (CHAR) == 'i' || (CHAR) == 'A') | |
232 | #endif | |
233 | ||
234 | /* This defines which multi-letter switches take arguments. */ | |
235 | ||
236 | #ifndef WORD_SWITCH_TAKES_ARG | |
237 | #define WORD_SWITCH_TAKES_ARG(STR) (!strcmp (STR, "Tdata")) | |
238 | #endif | |
239 | ||
240 | /* This structure says how to run one compiler, and when to do so. */ | |
241 | ||
242 | struct compiler | |
243 | { | |
244 | char *suffix; /* Use this compiler for input files | |
245 | whose names end in this suffix. */ | |
246 | char *spec; /* To use this compiler, pass this spec | |
247 | to do_spec. */ | |
248 | }; | |
249 | ||
250 | /* Here are the specs for compiling files with various known suffixes. | |
251 | A file that does not end in any of these suffixes will be passed | |
252 | unchanged to the loader and nothing else will be done to it. */ | |
253 | ||
254 | struct compiler compilers[] = | |
255 | { | |
256 | {".c", | |
257 | "cpp %{nostdinc} %{C} %{v} %{D*} %{U*} %{I*} %{M*} %{i*} %{trigraphs} -undef \ | |
258 | -D__GNUC__ %{ansi:-trigraphs -$ -D__STRICT_ANSI__} %{!ansi:%p} %P\ | |
259 | %c %{O:-D__OPTIMIZE__} %{traditional} %{pedantic} %{P}\ | |
260 | %{Wcomment*} %{Wtrigraphs} %{Wall} %{w} %C\ | |
261 | %i %{!M*:%{!E:%{!pipe:%g.cpp}}}%{E:%W{o*}}%{M*:%W{o*}} |\n\ | |
262 | %{!M*:%{!E:cc1 %{!pipe:%g.cpp} %1 \ | |
263 | %{!Q:-quiet} -dumpbase %i %{Y*} %{d*} %{m*} %{f*} %{a}\ | |
264 | %{g} %{O} %{W*} %{w} %{pedantic} %{ansi} %{traditional}\ | |
265 | %{v:-version} %{gg:-symout %g.sym} %{pg:-p} %{p}\ | |
266 | %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\ | |
267 | %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\ | |
268 | %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %{gg:-G %g.sym}\ | |
269 | %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%b.o}\ | |
270 | %{!pipe:%g.s}\n }}}"}, | |
271 | {".cc", | |
272 | "cpp -+ %{nostdinc} %{C} %{v} %{D*} %{U*} %{I*} %{M*} %{i*} \ | |
273 | -undef -D__GNUC__ -D__GNUG__ %p %P\ | |
274 | %c %{O:-D__OPTIMIZE__} %{traditional} %{pedantic} %{P}\ | |
275 | %{Wcomment*} %{Wtrigraphs} %{Wall} %{w} %C\ | |
276 | %i %{!M*:%{!E:%{!pipe:%g.cpp}}}%{E:%W{o*}}%{M*:%W{o*}} |\n\ | |
277 | %{!M*:%{!E:cc1plus %{!pipe:%g.cpp} %1\ | |
278 | %{!Q:-quiet} -dumpbase %i %{Y*} %{d*} %{m*} %{f*} %{a}\ | |
279 | %{g} %{O} %{W*} %{w} %{pedantic} %{traditional}\ | |
280 | %{v:-version} %{gg:-symout %g.sym} %{pg:-p} %{p}\ | |
281 | %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\ | |
282 | %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\ | |
283 | %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %{gg:-G %g.sym}\ | |
284 | %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%b.o}\ | |
285 | %{!pipe:%g.s}\n }}}"}, | |
286 | {".i", | |
287 | "cc1 %i %1 %{!Q:-quiet} %{Y*} %{d*} %{m*} %{f*} %{a}\ | |
288 | %{g} %{O} %{W*} %{w} %{pedantic} %{ansi} %{traditional}\ | |
289 | %{v:-version} %{gg:-symout %g.sym} %{pg:-p} %{p}\ | |
290 | %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\ | |
291 | %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %{gg:-G %g.sym}\ | |
292 | %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%b.o} %{!pipe:%g.s}\n }"}, | |
293 | {".s", | |
294 | "%{!S:as %{R} %{j} %{J} %{h} %{d2} %a \ | |
295 | %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%b.o} %i\n }"}, | |
296 | {".S", | |
297 | "cpp %{nostdinc} %{C} %{v} %{D*} %{U*} %{I*} %{M*} %{trigraphs} \ | |
298 | -undef -D__GNUC__ -$ %p %P\ | |
299 | %c %{O:-D__OPTIMIZE__} %{traditional} %{pedantic} %{P}\ | |
300 | %{Wcomment*} %{Wtrigraphs} %{Wall} %{w} %C\ | |
301 | %i %{!M*:%{!E:%{!pipe:%g.s}}}%{E:%W{o*}}%{M*:%W{o*}} |\n\ | |
302 | %{!M*:%{!E:%{!S:as %{R} %{j} %{J} %{h} %{d2} %a \ | |
303 | %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%b.o}\ | |
304 | %{!pipe:%g.s}\n }}}"}, | |
305 | /* Mark end of table */ | |
306 | {0, 0} | |
307 | }; | |
308 | ||
309 | /* Here is the spec for running the linker, after compiling all files. */ | |
310 | char *link_spec = "%{!c:%{!M*:%{!E:%{!S:ld %{o*} %l\ | |
311 | %{A} %{d} %{e*} %{N} %{n} %{r} %{s} %{S} %{T*} %{t} %{u*} %{X} %{x} %{z}\ | |
312 | %{y*} %{!A:%{!nostdlib:%S}} \ | |
b7bc99a4 | 313 | %{L*} %o %{!nostdlib:%L -lgnulib %L -lgnulib %{!A:%E}}\n }}}}"; |
15637ed4 RG |
314 | \f |
315 | /* Accumulate a command (program name and args), and run it. */ | |
316 | ||
317 | /* Vector of pointers to arguments in the current line of specifications. */ | |
318 | ||
319 | char **argbuf; | |
320 | ||
321 | /* Number of elements allocated in argbuf. */ | |
322 | ||
323 | int argbuf_length; | |
324 | ||
325 | /* Number of elements in argbuf currently in use (containing args). */ | |
326 | ||
327 | int argbuf_index; | |
328 | ||
329 | /* Number of commands executed so far. */ | |
330 | ||
331 | int execution_count; | |
332 | ||
333 | /* Flag indicating whether we should print the command and arguments */ | |
334 | ||
335 | unsigned char vflag; | |
336 | ||
337 | /* Name with which this program was invoked. */ | |
338 | ||
339 | char *programname; | |
340 | ||
341 | /* User-specified -B prefix to attach to command names, | |
342 | or 0 if none specified. */ | |
343 | ||
344 | char *user_exec_prefix = 0; | |
345 | ||
346 | /* Environment-specified prefix to attach to command names, | |
347 | or 0 if none specified. */ | |
348 | ||
349 | char *env_exec_prefix = 0; | |
350 | ||
351 | /* Suffix to attach to directories searched for commands. */ | |
352 | ||
353 | char *machine_suffix = 0; | |
354 | ||
355 | /* Default prefixes to attach to command names. */ | |
356 | ||
357 | #ifndef STANDARD_EXEC_PREFIX | |
358 | #define STANDARD_EXEC_PREFIX "/usr/libexec/" | |
359 | #endif /* !defined STANDARD_EXEC_PREFIX */ | |
360 | ||
361 | char *standard_exec_prefix = STANDARD_EXEC_PREFIX; | |
362 | char *standard_exec_prefix_1 = "/usr/libexec/gcc-"; | |
363 | ||
364 | #ifndef STANDARD_STARTFILE_PREFIX | |
365 | #define STANDARD_STARTFILE_PREFIX "/usr/lib/" | |
366 | #endif /* !defined STANDARD_STARTFILE_PREFIX */ | |
367 | ||
368 | char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX; | |
369 | char *standard_startfile_prefix_1 = "/usr/local/lib/"; | |
370 | char *standard_startfile_prefix_2 = "/usr/lib/gcc-"; | |
371 | ||
372 | /* Clear out the vector of arguments (after a command is executed). */ | |
373 | ||
374 | void | |
375 | clear_args () | |
376 | { | |
377 | argbuf_index = 0; | |
378 | } | |
379 | ||
380 | /* Add one argument to the vector at the end. | |
381 | This is done when a space is seen or at the end of the line. | |
382 | If DELETE_ALWAYS is nonzero, the arg is a filename | |
383 | and the file should be deleted eventually. | |
384 | If DELETE_FAILURE is nonzero, the arg is a filename | |
385 | and the file should be deleted if this compilation fails. */ | |
386 | ||
387 | void | |
388 | store_arg (arg, delete_always, delete_failure) | |
389 | char *arg; | |
390 | int delete_always, delete_failure; | |
391 | { | |
392 | if (argbuf_index + 1 == argbuf_length) | |
393 | { | |
394 | argbuf = (char **) realloc (argbuf, (argbuf_length *= 2) * sizeof (char *)); | |
395 | } | |
396 | ||
397 | argbuf[argbuf_index++] = arg; | |
398 | argbuf[argbuf_index] = 0; | |
399 | ||
400 | if (delete_always || delete_failure) | |
401 | record_temp_file (arg, delete_always, delete_failure); | |
402 | } | |
403 | \f | |
404 | /* Record the names of temporary files we tell compilers to write, | |
405 | and delete them at the end of the run. */ | |
406 | ||
407 | /* This is the common prefix we use to make temp file names. | |
408 | It is chosen once for each run of this program. | |
409 | It is substituted into a spec by %g. | |
410 | Thus, all temp file names contain this prefix. | |
411 | In practice, all temp file names start with this prefix. | |
412 | ||
413 | This prefix comes from the envvar TMPDIR if it is defined; | |
414 | otherwise, in /tmp. */ | |
415 | ||
416 | char *temp_filename; | |
417 | ||
418 | /* Length of the prefix. */ | |
419 | ||
420 | int temp_filename_length; | |
421 | ||
422 | /* Define the list of temporary files to delete. */ | |
423 | ||
424 | struct temp_file | |
425 | { | |
426 | char *name; | |
427 | struct temp_file *next; | |
428 | }; | |
429 | ||
430 | /* Queue of files to delete on success or failure of compilation. */ | |
431 | struct temp_file *always_delete_queue; | |
432 | /* Queue of files to delete on failure of compilation. */ | |
433 | struct temp_file *failure_delete_queue; | |
434 | ||
435 | /* Record FILENAME as a file to be deleted automatically. | |
436 | ALWAYS_DELETE nonzero means delete it if all compilation succeeds; | |
437 | otherwise delete it in any case. | |
438 | FAIL_DELETE nonzero means delete it if a compilation step fails; | |
439 | otherwise delete it in any case. */ | |
440 | ||
441 | void | |
442 | record_temp_file (filename, always_delete, fail_delete) | |
443 | char *filename; | |
444 | int always_delete; | |
445 | int fail_delete; | |
446 | { | |
447 | register char *name; | |
448 | name = (char *) xmalloc (strlen (filename) + 1); | |
449 | strcpy (name, filename); | |
450 | ||
451 | if (always_delete) | |
452 | { | |
453 | register struct temp_file *temp; | |
454 | for (temp = always_delete_queue; temp; temp = temp->next) | |
455 | if (! strcmp (name, temp->name)) | |
456 | goto already1; | |
457 | temp = (struct temp_file *) xmalloc (sizeof (struct temp_file)); | |
458 | temp->next = always_delete_queue; | |
459 | temp->name = name; | |
460 | always_delete_queue = temp; | |
461 | already1:; | |
462 | } | |
463 | ||
464 | if (fail_delete) | |
465 | { | |
466 | register struct temp_file *temp; | |
467 | for (temp = failure_delete_queue; temp; temp = temp->next) | |
468 | if (! strcmp (name, temp->name)) | |
469 | goto already2; | |
470 | temp = (struct temp_file *) xmalloc (sizeof (struct temp_file)); | |
471 | temp->next = failure_delete_queue; | |
472 | temp->name = name; | |
473 | failure_delete_queue = temp; | |
474 | already2:; | |
475 | } | |
476 | } | |
477 | ||
478 | /* Delete all the temporary files whose names we previously recorded. */ | |
479 | ||
480 | void | |
481 | delete_temp_files () | |
482 | { | |
483 | register struct temp_file *temp; | |
484 | ||
485 | for (temp = always_delete_queue; temp; temp = temp->next) | |
486 | { | |
487 | #ifdef DEBUG | |
488 | int i; | |
489 | printf ("Delete %s? (y or n) ", temp->name); | |
490 | fflush (stdout); | |
491 | i = getchar (); | |
492 | if (i != '\n') | |
493 | while (getchar () != '\n') ; | |
494 | if (i == 'y' || i == 'Y') | |
495 | #endif /* DEBUG */ | |
496 | { | |
497 | if (unlink (temp->name) < 0) | |
498 | if (vflag) | |
499 | perror_with_name (temp->name); | |
500 | } | |
501 | } | |
502 | ||
503 | always_delete_queue = 0; | |
504 | } | |
505 | ||
506 | /* Delete all the files to be deleted on error. */ | |
507 | ||
508 | void | |
509 | delete_failure_queue () | |
510 | { | |
511 | register struct temp_file *temp; | |
512 | ||
513 | for (temp = failure_delete_queue; temp; temp = temp->next) | |
514 | { | |
515 | #ifdef DEBUG | |
516 | int i; | |
517 | printf ("Delete %s? (y or n) ", temp->name); | |
518 | fflush (stdout); | |
519 | i = getchar (); | |
520 | if (i != '\n') | |
521 | while (getchar () != '\n') ; | |
522 | if (i == 'y' || i == 'Y') | |
523 | #endif /* DEBUG */ | |
524 | { | |
525 | if (unlink (temp->name) < 0) | |
526 | if (vflag) | |
527 | perror_with_name (temp->name); | |
528 | } | |
529 | } | |
530 | } | |
531 | ||
532 | void | |
533 | clear_failure_queue () | |
534 | { | |
535 | failure_delete_queue = 0; | |
536 | } | |
537 | ||
538 | /* Compute a string to use as the base of all temporary file names. | |
539 | It is substituted for %g. */ | |
540 | ||
541 | void | |
542 | choose_temp_base () | |
543 | { | |
544 | extern char *getenv (); | |
545 | char *base = getenv ("TMPDIR"); | |
546 | int len; | |
547 | ||
548 | if (base == (char *)0) | |
549 | base = "/tmp/"; | |
550 | ||
551 | len = strlen (base); | |
552 | temp_filename = (char *) xmalloc (len + sizeof("/ccXXXXXX")); | |
553 | strcpy (temp_filename, base); | |
554 | if (len > 0 && temp_filename[len-1] != '/') | |
555 | temp_filename[len++] = '/'; | |
556 | strcpy (temp_filename + len, "ccXXXXXX"); | |
557 | ||
558 | mktemp (temp_filename); | |
559 | temp_filename_length = strlen (temp_filename); | |
560 | } | |
561 | \f | |
562 | /* Search for an execute file through our search path. | |
563 | Return 0 if not found, otherwise return its name, allocated with malloc. */ | |
564 | ||
565 | static char * | |
566 | find_exec_file (prog) | |
567 | char *prog; | |
568 | { | |
569 | int win = 0; | |
570 | char *temp; | |
571 | int size; | |
572 | ||
573 | size = strlen (standard_exec_prefix); | |
574 | if (user_exec_prefix != 0 && strlen (user_exec_prefix) > size) | |
575 | size = strlen (user_exec_prefix); | |
576 | if (env_exec_prefix != 0 && strlen (env_exec_prefix) > size) | |
577 | size = strlen (env_exec_prefix); | |
578 | if (strlen (standard_exec_prefix_1) > size) | |
579 | size = strlen (standard_exec_prefix_1); | |
580 | size += strlen (prog) + 1; | |
581 | if (machine_suffix) | |
582 | size += strlen (machine_suffix) + 1; | |
583 | temp = (char *) xmalloc (size); | |
584 | ||
585 | /* Determine the filename to execute. */ | |
586 | ||
587 | if (user_exec_prefix) | |
588 | { | |
589 | if (machine_suffix) | |
590 | { | |
591 | strcpy (temp, user_exec_prefix); | |
592 | strcat (temp, machine_suffix); | |
593 | strcat (temp, prog); | |
594 | win = (access (temp, X_OK) == 0); | |
595 | } | |
596 | if (!win) | |
597 | { | |
598 | strcpy (temp, user_exec_prefix); | |
599 | strcat (temp, prog); | |
600 | win = (access (temp, X_OK) == 0); | |
601 | } | |
602 | } | |
603 | ||
604 | if (!win && env_exec_prefix) | |
605 | { | |
606 | if (machine_suffix) | |
607 | { | |
608 | strcpy (temp, env_exec_prefix); | |
609 | strcat (temp, machine_suffix); | |
610 | strcat (temp, prog); | |
611 | win = (access (temp, X_OK) == 0); | |
612 | } | |
613 | if (!win) | |
614 | { | |
615 | strcpy (temp, env_exec_prefix); | |
616 | strcat (temp, prog); | |
617 | win = (access (temp, X_OK) == 0); | |
618 | } | |
619 | } | |
620 | ||
621 | if (!win) | |
622 | { | |
623 | if (machine_suffix) | |
624 | { | |
625 | strcpy (temp, standard_exec_prefix); | |
626 | strcat (temp, machine_suffix); | |
627 | strcat (temp, prog); | |
628 | win = (access (temp, X_OK) == 0); | |
629 | } | |
630 | if (!win) | |
631 | { | |
632 | strcpy (temp, standard_exec_prefix); | |
633 | strcat (temp, prog); | |
634 | win = (access (temp, X_OK) == 0); | |
635 | } | |
636 | } | |
637 | ||
638 | if (!win) | |
639 | { | |
640 | if (machine_suffix) | |
641 | { | |
642 | strcpy (temp, standard_exec_prefix_1); | |
643 | strcat (temp, machine_suffix); | |
644 | strcat (temp, prog); | |
645 | win = (access (temp, X_OK) == 0); | |
646 | } | |
647 | if (!win) | |
648 | { | |
649 | strcpy (temp, standard_exec_prefix_1); | |
650 | strcat (temp, prog); | |
651 | win = (access (temp, X_OK) == 0); | |
652 | } | |
653 | } | |
654 | ||
655 | if (win) | |
656 | return temp; | |
657 | else | |
658 | return 0; | |
659 | } | |
660 | \f | |
661 | /* stdin file number. */ | |
662 | #define STDIN_FILE_NO 0 | |
663 | ||
664 | /* stdout file number. */ | |
665 | #define STDOUT_FILE_NO 1 | |
666 | ||
667 | /* value of `pipe': port index for reading. */ | |
668 | #define READ_PORT 0 | |
669 | ||
670 | /* value of `pipe': port index for writing. */ | |
671 | #define WRITE_PORT 1 | |
672 | ||
673 | /* Pipe waiting from last process, to be used as input for the next one. | |
674 | Value is STDIN_FILE_NO if no pipe is waiting | |
675 | (i.e. the next command is the first of a group). */ | |
676 | ||
677 | int last_pipe_input; | |
678 | ||
679 | /* Fork one piped subcommand. FUNC is the system call to use | |
680 | (either execv or execvp). ARGV is the arg vector to use. | |
681 | NOT_LAST is nonzero if this is not the last subcommand | |
682 | (i.e. its output should be piped to the next one.) */ | |
683 | ||
684 | static int | |
685 | pexecute (func, program, argv, not_last) | |
686 | char *program; | |
687 | int (*func)(); | |
688 | char *argv[]; | |
689 | int not_last; | |
690 | { | |
691 | int pid; | |
692 | int pdes[2]; | |
693 | int input_desc = last_pipe_input; | |
694 | int output_desc = STDOUT_FILE_NO; | |
695 | ||
696 | /* If this isn't the last process, make a pipe for its output, | |
697 | and record it as waiting to be the input to the next process. */ | |
698 | ||
699 | if (not_last) | |
700 | { | |
701 | if (pipe (pdes) < 0) | |
702 | pfatal_with_name ("pipe"); | |
703 | output_desc = pdes[WRITE_PORT]; | |
704 | last_pipe_input = pdes[READ_PORT]; | |
705 | } | |
706 | else | |
707 | last_pipe_input = STDIN_FILE_NO; | |
708 | ||
709 | pid = vfork (); | |
710 | ||
711 | switch (pid) | |
712 | { | |
713 | case -1: | |
714 | pfatal_with_name ("vfork"); | |
715 | break; | |
716 | ||
717 | case 0: /* child */ | |
718 | /* Move the input and output pipes into place, if nec. */ | |
719 | if (input_desc != STDIN_FILE_NO) | |
720 | { | |
721 | close (STDIN_FILE_NO); | |
722 | dup (input_desc); | |
723 | close (input_desc); | |
724 | } | |
725 | if (output_desc != STDOUT_FILE_NO) | |
726 | { | |
727 | close (STDOUT_FILE_NO); | |
728 | dup (output_desc); | |
729 | close (output_desc); | |
730 | } | |
731 | ||
732 | /* Close the parent's descs that aren't wanted here. */ | |
733 | if (last_pipe_input != STDIN_FILE_NO) | |
734 | close (last_pipe_input); | |
735 | ||
736 | /* Exec the program. */ | |
737 | (*func) (program, argv); | |
738 | perror_exec (program); | |
739 | exit (-1); | |
740 | /* NOTREACHED */ | |
741 | ||
742 | default: | |
743 | /* In the parent, after forking. | |
744 | Close the descriptors that we made for this child. */ | |
745 | if (input_desc != STDIN_FILE_NO) | |
746 | close (input_desc); | |
747 | if (output_desc != STDOUT_FILE_NO) | |
748 | close (output_desc); | |
749 | ||
750 | /* Return child's process number. */ | |
751 | return pid; | |
752 | } | |
753 | } | |
754 | \f | |
755 | /* Execute the command specified by the arguments on the current line of spec. | |
756 | When using pipes, this includes several piped-together commands | |
757 | with `|' between them. | |
758 | ||
759 | Return 0 if successful, -1 if failed. */ | |
760 | ||
761 | int | |
762 | execute () | |
763 | { | |
764 | int i, j; | |
765 | int n_commands; /* # of command. */ | |
766 | char *string; | |
767 | struct command | |
768 | { | |
769 | char *prog; /* program name. */ | |
770 | char **argv; /* vector of args. */ | |
771 | int pid; /* pid of process for this command. */ | |
772 | }; | |
773 | ||
774 | struct command *commands; /* each command buffer with above info. */ | |
775 | ||
776 | /* Count # of piped commands. */ | |
777 | for (n_commands = 1, i = 0; i < argbuf_index; i++) | |
778 | if (strcmp (argbuf[i], "|") == 0) | |
779 | n_commands++; | |
780 | ||
781 | /* Get storage for each command. */ | |
782 | commands | |
783 | = (struct command *) alloca (n_commands * sizeof (struct command)); | |
784 | ||
785 | /* Split argbuf into its separate piped processes, | |
786 | and record info about each one. | |
787 | Also search for the programs that are to be run. */ | |
788 | ||
789 | commands[0].prog = argbuf[0]; /* first command. */ | |
790 | commands[0].argv = &argbuf[0]; | |
791 | string = find_exec_file (commands[0].prog); | |
792 | if (string) | |
793 | commands[0].argv[0] = string; | |
794 | ||
795 | for (n_commands = 1, i = 0; i < argbuf_index; i++) | |
796 | if (strcmp (argbuf[i], "|") == 0) | |
797 | { /* each command. */ | |
798 | argbuf[i] = 0; /* termination of command args. */ | |
799 | commands[n_commands].prog = argbuf[i + 1]; | |
800 | commands[n_commands].argv = &argbuf[i + 1]; | |
801 | string = find_exec_file (commands[n_commands].prog); | |
802 | if (string) | |
803 | commands[n_commands].argv[0] = string; | |
804 | n_commands++; | |
805 | } | |
806 | ||
807 | argbuf[argbuf_index] = 0; | |
808 | ||
809 | /* If -v, print what we are about to do, and maybe query. */ | |
810 | ||
811 | if (vflag) | |
812 | { | |
813 | /* Print each piped command as a separate line. */ | |
814 | for (i = 0; i < n_commands ; i++) | |
815 | { | |
816 | char **j; | |
817 | ||
818 | for (j = commands[i].argv; *j; j++) | |
819 | fprintf (stderr, " %s", *j); | |
820 | ||
821 | /* Print a pipe symbol after all but the last command. */ | |
822 | if (i + 1 != n_commands) | |
823 | fprintf (stderr, " |"); | |
824 | fprintf (stderr, "\n"); | |
825 | } | |
826 | fflush (stderr); | |
827 | #ifdef DEBUG | |
828 | fprintf (stderr, "\nGo ahead? (y or n) "); | |
829 | fflush (stderr); | |
830 | j = getchar (); | |
831 | if (j != '\n') | |
832 | while (getchar () != '\n') ; | |
833 | if (j != 'y' && j != 'Y') | |
834 | return 0; | |
835 | #endif /* DEBUG */ | |
836 | } | |
837 | ||
838 | /* Run each piped subprocess. */ | |
839 | ||
840 | last_pipe_input = STDIN_FILE_NO; | |
841 | for (i = 0; i < n_commands; i++) | |
842 | { | |
843 | extern int execv(), execvp(); | |
844 | char *string = commands[i].argv[0]; | |
845 | ||
846 | commands[i].pid = pexecute ((string != commands[i].prog ? execv : execvp), | |
847 | string, commands[i].argv, | |
848 | i + 1 < n_commands); | |
849 | ||
850 | if (string != commands[i].prog) | |
851 | free (string); | |
852 | } | |
853 | ||
854 | execution_count++; | |
855 | ||
856 | /* Wait for all the subprocesses to finish. | |
857 | We don't care what order they finish in; | |
858 | we know that N_COMMANDS waits will get them all. */ | |
859 | ||
860 | { | |
861 | int ret_code = 0; | |
862 | ||
863 | for (i = 0; i < n_commands; i++) | |
864 | { | |
865 | int status; | |
866 | int pid; | |
867 | char *prog; | |
868 | ||
869 | pid = wait (&status); | |
870 | if (pid < 0) | |
871 | abort (); | |
872 | ||
873 | if (status != 0) | |
874 | { | |
875 | int j; | |
876 | for (j = 0; j < n_commands; j++) | |
877 | if (commands[j].pid == pid) | |
878 | prog = commands[j].prog; | |
879 | ||
880 | if ((status & 0x7F) != 0) | |
881 | fatal ("Program %s got fatal signal %d.", prog, (status & 0x7F)); | |
882 | if (((status & 0xFF00) >> 8) >= MIN_FATAL_STATUS) | |
883 | ret_code = -1; | |
884 | } | |
885 | } | |
886 | return ret_code; | |
887 | } | |
888 | } | |
889 | \f | |
890 | /* Find all the switches given to us | |
891 | and make a vector describing them. | |
892 | The elements of the vector a strings, one per switch given. | |
893 | If a switch uses the following argument, then the `part1' field | |
894 | is the switch itself and the `part2' field is the following argument. | |
895 | The `valid' field is nonzero if any spec has looked at this switch; | |
896 | if it remains zero at the end of the run, it must be meaningless. */ | |
897 | ||
898 | struct switchstr | |
899 | { | |
900 | char *part1; | |
901 | char *part2; | |
902 | int valid; | |
903 | }; | |
904 | ||
905 | struct switchstr *switches; | |
906 | ||
907 | int n_switches; | |
908 | ||
909 | /* Also a vector of input files specified. */ | |
910 | ||
911 | char **infiles; | |
912 | ||
913 | int n_infiles; | |
914 | ||
915 | /* And a vector of corresponding output files is made up later. */ | |
916 | ||
917 | char **outfiles; | |
918 | ||
919 | /* Create the vector `switches' and its contents. | |
920 | Store its length in `n_switches'. */ | |
921 | ||
922 | void | |
923 | process_command (argc, argv) | |
924 | int argc; | |
925 | char **argv; | |
926 | { | |
927 | extern char *getenv (); | |
928 | register int i; | |
929 | n_switches = 0; | |
930 | n_infiles = 0; | |
931 | ||
932 | env_exec_prefix = getenv ("GCC_EXEC_PREFIX"); | |
933 | ||
934 | /* Scan argv twice. Here, the first time, just count how many switches | |
935 | there will be in their vector, and how many input files in theirs. | |
936 | Here we also parse the switches that cc itself uses (e.g. -v). */ | |
937 | ||
938 | for (i = 1; i < argc; i++) | |
939 | { | |
940 | if (argv[i][0] == '-' && argv[i][1] != 'l') | |
941 | { | |
942 | register char *p = &argv[i][1]; | |
943 | register int c = *p; | |
944 | ||
945 | switch (c) | |
946 | { | |
947 | case 'b': | |
948 | machine_suffix = p + 1; | |
949 | break; | |
950 | ||
951 | case 'B': | |
952 | user_exec_prefix = p + 1; | |
953 | break; | |
954 | ||
955 | case 'v': /* Print our subcommands and print versions. */ | |
956 | vflag++; | |
957 | n_switches++; | |
958 | break; | |
959 | ||
960 | default: | |
961 | n_switches++; | |
962 | ||
963 | if (SWITCH_TAKES_ARG (c) && p[1] == 0) | |
964 | i++; | |
965 | else if (WORD_SWITCH_TAKES_ARG (p)) | |
966 | i++; | |
967 | } | |
968 | } | |
969 | else | |
970 | n_infiles++; | |
971 | } | |
972 | ||
973 | /* Then create the space for the vectors and scan again. */ | |
974 | ||
975 | switches = ((struct switchstr *) | |
976 | xmalloc ((n_switches + 1) * sizeof (struct switchstr))); | |
977 | infiles = (char **) xmalloc ((n_infiles + 1) * sizeof (char *)); | |
978 | n_switches = 0; | |
979 | n_infiles = 0; | |
980 | ||
981 | /* This, time, copy the text of each switch and store a pointer | |
982 | to the copy in the vector of switches. | |
983 | Store all the infiles in their vector. */ | |
984 | ||
985 | for (i = 1; i < argc; i++) | |
986 | { | |
987 | if (argv[i][0] == '-' && argv[i][1] != 'l') | |
988 | { | |
989 | register char *p = &argv[i][1]; | |
990 | register int c = *p; | |
991 | ||
992 | if (c == 'B' || c == 'b') | |
993 | continue; | |
994 | switches[n_switches].part1 = p; | |
995 | if ((SWITCH_TAKES_ARG (c) && p[1] == 0) | |
996 | || WORD_SWITCH_TAKES_ARG (p)) | |
997 | switches[n_switches].part2 = argv[++i]; | |
998 | else if (c == 'o') { | |
999 | /* On some systems, ld cannot handle -o without space. | |
1000 | So split the -o and its argument. */ | |
1001 | switches[n_switches].part2 = (char *) xmalloc (strlen (p)); | |
1002 | strcpy (switches[n_switches].part2, &p[1]); | |
1003 | p[1] = 0; | |
1004 | } else | |
1005 | switches[n_switches].part2 = 0; | |
1006 | switches[n_switches].valid = 0; | |
1007 | n_switches++; | |
1008 | } | |
1009 | else | |
1010 | infiles[n_infiles++] = argv[i]; | |
1011 | } | |
1012 | ||
1013 | switches[n_switches].part1 = 0; | |
1014 | infiles[n_infiles] = 0; | |
1015 | } | |
1016 | \f | |
1017 | /* Process a spec string, accumulating and running commands. */ | |
1018 | ||
1019 | /* These variables describe the input file name. | |
1020 | input_file_number is the index on outfiles of this file, | |
1021 | so that the output file name can be stored for later use by %o. | |
1022 | input_basename is the start of the part of the input file | |
1023 | sans all directory names, and basename_length is the number | |
1024 | of characters starting there excluding the suffix .c or whatever. */ | |
1025 | ||
1026 | char *input_filename; | |
1027 | int input_file_number; | |
1028 | int input_filename_length; | |
1029 | int basename_length; | |
1030 | char *input_basename; | |
1031 | ||
1032 | /* These are variables used within do_spec and do_spec_1. */ | |
1033 | ||
1034 | /* Nonzero if an arg has been started and not yet terminated | |
1035 | (with space, tab or newline). */ | |
1036 | int arg_going; | |
1037 | ||
1038 | /* Nonzero means %d or %g has been seen; the next arg to be terminated | |
1039 | is a temporary file name. */ | |
1040 | int delete_this_arg; | |
1041 | ||
1042 | /* Nonzero means %w has been seen; the next arg to be terminated | |
1043 | is the output file name of this compilation. */ | |
1044 | int this_is_output_file; | |
1045 | ||
1046 | /* Nonzero means %s has been seen; the next arg to be terminated | |
1047 | is the name of a library file and we should try the standard | |
1048 | search dirs for it. */ | |
1049 | int this_is_library_file; | |
1050 | ||
1051 | /* Process the spec SPEC and run the commands specified therein. | |
1052 | Returns 0 if the spec is successfully processed; -1 if failed. */ | |
1053 | ||
1054 | int | |
1055 | do_spec (spec) | |
1056 | char *spec; | |
1057 | { | |
1058 | int value; | |
1059 | ||
1060 | clear_args (); | |
1061 | arg_going = 0; | |
1062 | delete_this_arg = 0; | |
1063 | this_is_output_file = 0; | |
1064 | this_is_library_file = 0; | |
1065 | ||
1066 | value = do_spec_1 (spec, 0); | |
1067 | ||
1068 | /* Force out any unfinished command. | |
1069 | If -pipe, this forces out the last command if it ended in `|'. */ | |
1070 | if (value == 0) | |
1071 | { | |
1072 | if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|")) | |
1073 | argbuf_index--; | |
1074 | ||
1075 | if (argbuf_index > 0) | |
1076 | value = execute (); | |
1077 | } | |
1078 | ||
1079 | return value; | |
1080 | } | |
1081 | ||
1082 | /* Process the sub-spec SPEC as a portion of a larger spec. | |
1083 | This is like processing a whole spec except that we do | |
1084 | not initialize at the beginning and we do not supply a | |
1085 | newline by default at the end. | |
1086 | INSWITCH nonzero means don't process %-sequences in SPEC; | |
1087 | in this case, % is treated as an ordinary character. | |
1088 | This is used while substituting switches. | |
1089 | INSWITCH nonzero also causes SPC not to terminate an argument. | |
1090 | ||
1091 | Value is zero unless a line was finished | |
1092 | and the command on that line reported an error. */ | |
1093 | ||
1094 | int | |
1095 | do_spec_1 (spec, inswitch) | |
1096 | char *spec; | |
1097 | int inswitch; | |
1098 | { | |
1099 | register char *p = spec; | |
1100 | register int c; | |
1101 | char *string; | |
1102 | ||
1103 | while (c = *p++) | |
1104 | /* If substituting a switch, treat all chars like letters. | |
1105 | Otherwise, NL, SPC, TAB and % are special. */ | |
1106 | switch (inswitch ? 'a' : c) | |
1107 | { | |
1108 | case '\n': | |
1109 | /* End of line: finish any pending argument, | |
1110 | then run the pending command if one has been started. */ | |
1111 | if (arg_going) | |
1112 | { | |
1113 | obstack_1grow (&obstack, 0); | |
1114 | string = obstack_finish (&obstack); | |
1115 | if (this_is_library_file) | |
1116 | string = find_file (string); | |
1117 | store_arg (string, delete_this_arg, this_is_output_file); | |
1118 | if (this_is_output_file) | |
1119 | outfiles[input_file_number] = string; | |
1120 | } | |
1121 | arg_going = 0; | |
1122 | ||
1123 | if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|")) | |
1124 | { | |
1125 | int i; | |
1126 | for (i = 0; i < n_switches; i++) | |
1127 | if (!strcmp (switches[i].part1, "pipe")) | |
1128 | break; | |
1129 | ||
1130 | /* A `|' before the newline means use a pipe here, | |
1131 | but only if -pipe was specified. | |
1132 | Otherwise, execute now and don't pass the `|' as an arg. */ | |
1133 | if (i < n_switches) | |
1134 | { | |
1135 | switches[i].valid = 1; | |
1136 | break; | |
1137 | } | |
1138 | else | |
1139 | argbuf_index--; | |
1140 | } | |
1141 | ||
1142 | if (argbuf_index > 0) | |
1143 | { | |
1144 | int value = execute (); | |
1145 | if (value) | |
1146 | return value; | |
1147 | } | |
1148 | /* Reinitialize for a new command, and for a new argument. */ | |
1149 | clear_args (); | |
1150 | arg_going = 0; | |
1151 | delete_this_arg = 0; | |
1152 | this_is_output_file = 0; | |
1153 | this_is_library_file = 0; | |
1154 | break; | |
1155 | ||
1156 | case '|': | |
1157 | /* End any pending argument. */ | |
1158 | if (arg_going) | |
1159 | { | |
1160 | obstack_1grow (&obstack, 0); | |
1161 | string = obstack_finish (&obstack); | |
1162 | if (this_is_library_file) | |
1163 | string = find_file (string); | |
1164 | store_arg (string, delete_this_arg, this_is_output_file); | |
1165 | if (this_is_output_file) | |
1166 | outfiles[input_file_number] = string; | |
1167 | } | |
1168 | ||
1169 | /* Use pipe */ | |
1170 | obstack_1grow (&obstack, c); | |
1171 | arg_going = 1; | |
1172 | break; | |
1173 | ||
1174 | case '\t': | |
1175 | case ' ': | |
1176 | /* Space or tab ends an argument if one is pending. */ | |
1177 | if (arg_going) | |
1178 | { | |
1179 | obstack_1grow (&obstack, 0); | |
1180 | string = obstack_finish (&obstack); | |
1181 | if (this_is_library_file) | |
1182 | string = find_file (string); | |
1183 | store_arg (string, delete_this_arg, this_is_output_file); | |
1184 | if (this_is_output_file) | |
1185 | outfiles[input_file_number] = string; | |
1186 | } | |
1187 | /* Reinitialize for a new argument. */ | |
1188 | arg_going = 0; | |
1189 | delete_this_arg = 0; | |
1190 | this_is_output_file = 0; | |
1191 | this_is_library_file = 0; | |
1192 | break; | |
1193 | ||
1194 | case '%': | |
1195 | switch (c = *p++) | |
1196 | { | |
1197 | case 0: | |
1198 | fatal ("Invalid specification! Bug in cc."); | |
1199 | ||
1200 | case 'b': | |
1201 | obstack_grow (&obstack, input_basename, basename_length); | |
1202 | arg_going = 1; | |
1203 | break; | |
1204 | ||
1205 | case 'd': | |
1206 | delete_this_arg = 2; | |
1207 | break; | |
1208 | ||
1209 | case 'e': | |
1210 | /* {...:%efoo} means report an error with `foo' as error message | |
1211 | and don't execute any more commands for this file. */ | |
1212 | { | |
1213 | char *q = p; | |
1214 | char *buf; | |
1215 | while (*p != 0 && *p != '\n') p++; | |
1216 | buf = (char *) alloca (p - q + 1); | |
1217 | strncpy (buf, q, p - q); | |
1218 | buf[p - q] = 0; | |
1219 | error ("%s", buf); | |
1220 | return -1; | |
1221 | } | |
1222 | break; | |
1223 | ||
1224 | case 'g': | |
1225 | obstack_grow (&obstack, temp_filename, temp_filename_length); | |
1226 | delete_this_arg = 1; | |
1227 | arg_going = 1; | |
1228 | break; | |
1229 | ||
1230 | case 'i': | |
1231 | obstack_grow (&obstack, input_filename, input_filename_length); | |
1232 | arg_going = 1; | |
1233 | break; | |
1234 | ||
1235 | case 'o': | |
1236 | { | |
1237 | register int f; | |
1238 | for (f = 0; f < n_infiles; f++) | |
1239 | store_arg (outfiles[f], 0, 0); | |
1240 | } | |
1241 | break; | |
1242 | ||
1243 | case 's': | |
1244 | this_is_library_file = 1; | |
1245 | break; | |
1246 | ||
1247 | case 'W': | |
1248 | { | |
1249 | int index = argbuf_index; | |
1250 | /* Handle the {...} following the %W. */ | |
1251 | if (*p != '{') | |
1252 | abort (); | |
1253 | p = handle_braces (p + 1); | |
1254 | if (p == 0) | |
1255 | return -1; | |
1256 | /* If any args were output, mark the last one for deletion | |
1257 | on failure. */ | |
1258 | if (argbuf_index != index) | |
1259 | record_temp_file (argbuf[argbuf_index - 1], 0, 1); | |
1260 | break; | |
1261 | } | |
1262 | ||
1263 | case 'w': | |
1264 | this_is_output_file = 1; | |
1265 | break; | |
1266 | ||
1267 | case '{': | |
1268 | p = handle_braces (p); | |
1269 | if (p == 0) | |
1270 | return -1; | |
1271 | break; | |
1272 | ||
1273 | case '%': | |
1274 | obstack_1grow (&obstack, '%'); | |
1275 | break; | |
1276 | ||
1277 | /*** The rest just process a certain constant string as a spec. */ | |
1278 | ||
1279 | case '1': | |
1280 | do_spec_1 (CC1_SPEC, 0); | |
1281 | break; | |
1282 | ||
1283 | case 'a': | |
1284 | do_spec_1 (ASM_SPEC, 0); | |
1285 | break; | |
1286 | ||
1287 | case 'c': | |
1288 | do_spec_1 (SIGNED_CHAR_SPEC, 0); | |
1289 | break; | |
1290 | ||
1291 | case 'C': | |
1292 | do_spec_1 (CPP_SPEC, 0); | |
1293 | break; | |
1294 | ||
1295 | case 'l': | |
1296 | do_spec_1 (LINK_SPEC, 0); | |
1297 | break; | |
1298 | ||
1299 | case 'L': | |
1300 | do_spec_1 (LIB_SPEC, 0); | |
1301 | break; | |
1302 | ||
1303 | case 'p': | |
1304 | do_spec_1 (CPP_PREDEFINES, 0); | |
1305 | break; | |
1306 | ||
1307 | case 'P': | |
1308 | { | |
1309 | char *x = (char *) alloca (strlen (CPP_PREDEFINES) * 2 + 1); | |
1310 | char *buf = x; | |
1311 | char *y = CPP_PREDEFINES; | |
1312 | ||
1313 | /* Copy all of CPP_PREDEFINES into BUF, | |
1314 | but put __ after every -D and at the end of each arg, */ | |
1315 | while (1) | |
1316 | { | |
1317 | if (! strncmp (y, "-D", 2)) | |
1318 | { | |
1319 | *x++ = '-'; | |
1320 | *x++ = 'D'; | |
1321 | *x++ = '_'; | |
1322 | *x++ = '_'; | |
1323 | y += 2; | |
1324 | } | |
1325 | else if (*y == ' ' || *y == 0) | |
1326 | { | |
1327 | *x++ = '_'; | |
1328 | *x++ = '_'; | |
1329 | if (*y == 0) | |
1330 | break; | |
1331 | else | |
1332 | *x++ = *y++; | |
1333 | } | |
1334 | else | |
1335 | *x++ = *y++; | |
1336 | } | |
1337 | *x = 0; | |
1338 | ||
1339 | do_spec_1 (buf, 0); | |
1340 | } | |
1341 | break; | |
1342 | ||
1343 | case 'S': | |
1344 | do_spec_1 (STARTFILE_SPEC, 0); | |
1345 | break; | |
1346 | ||
1347 | case 'E': | |
1348 | do_spec_1 (ENDFILE_SPEC, 0); | |
1349 | break; | |
1350 | ||
1351 | default: | |
1352 | abort (); | |
1353 | } | |
1354 | break; | |
1355 | ||
1356 | default: | |
1357 | /* Ordinary character: put it into the current argument. */ | |
1358 | obstack_1grow (&obstack, c); | |
1359 | arg_going = 1; | |
1360 | } | |
1361 | ||
1362 | return 0; /* End of string */ | |
1363 | } | |
1364 | ||
1365 | /* Return 0 if we call do_spec_1 and that returns -1. */ | |
1366 | ||
1367 | char * | |
1368 | handle_braces (p) | |
1369 | register char *p; | |
1370 | { | |
1371 | register char *q; | |
1372 | char *filter; | |
1373 | int pipe = 0; | |
1374 | int negate = 0; | |
1375 | ||
1376 | if (*p == '|') | |
1377 | /* A `|' after the open-brace means, | |
1378 | if the test fails, output a single minus sign rather than nothing. | |
1379 | This is used in %{|!pipe:...}. */ | |
1380 | pipe = 1, ++p; | |
1381 | ||
1382 | if (*p == '!') | |
1383 | /* A `!' after the open-brace negates the condition: | |
1384 | succeed if the specified switch is not present. */ | |
1385 | negate = 1, ++p; | |
1386 | ||
1387 | filter = p; | |
1388 | while (*p != ':' && *p != '}') p++; | |
1389 | if (*p != '}') | |
1390 | { | |
1391 | register int count = 1; | |
1392 | q = p + 1; | |
1393 | while (count > 0) | |
1394 | { | |
1395 | if (*q == '{') | |
1396 | count++; | |
1397 | else if (*q == '}') | |
1398 | count--; | |
1399 | else if (*q == 0) | |
1400 | abort (); | |
1401 | q++; | |
1402 | } | |
1403 | } | |
1404 | else | |
1405 | q = p + 1; | |
1406 | ||
1407 | if (p[-1] == '*' && p[0] == '}') | |
1408 | { | |
1409 | /* Substitute all matching switches as separate args. */ | |
1410 | register int i; | |
1411 | --p; | |
1412 | for (i = 0; i < n_switches; i++) | |
1413 | if (!strncmp (switches[i].part1, filter, p - filter)) | |
1414 | give_switch (i); | |
1415 | } | |
1416 | else | |
1417 | { | |
1418 | /* Test for presence of the specified switch. */ | |
1419 | register int i; | |
1420 | int present = 0; | |
1421 | ||
1422 | /* If name specified ends in *, as in {x*:...}, | |
1423 | check for presence of any switch name starting with x. */ | |
1424 | if (p[-1] == '*') | |
1425 | { | |
1426 | for (i = 0; i < n_switches; i++) | |
1427 | { | |
1428 | if (!strncmp (switches[i].part1, filter, p - filter - 1)) | |
1429 | { | |
1430 | switches[i].valid = 1; | |
1431 | present = 1; | |
1432 | } | |
1433 | } | |
1434 | } | |
1435 | /* Otherwise, check for presence of exact name specified. */ | |
1436 | else | |
1437 | { | |
1438 | for (i = 0; i < n_switches; i++) | |
1439 | { | |
1440 | if (!strncmp (switches[i].part1, filter, p - filter) | |
1441 | && switches[i].part1[p - filter] == 0) | |
1442 | { | |
1443 | switches[i].valid = 1; | |
1444 | present = 1; | |
1445 | break; | |
1446 | } | |
1447 | } | |
1448 | } | |
1449 | ||
1450 | /* If it is as desired (present for %{s...}, absent for %{-s...}) | |
1451 | then substitute either the switch or the specified | |
1452 | conditional text. */ | |
1453 | if (present != negate) | |
1454 | { | |
1455 | if (*p == '}') | |
1456 | { | |
1457 | give_switch (i); | |
1458 | } | |
1459 | else | |
1460 | { | |
1461 | if (do_spec_1 (save_string (p + 1, q - p - 2), 0) < 0) | |
1462 | return 0; | |
1463 | } | |
1464 | } | |
1465 | else if (pipe) | |
1466 | { | |
1467 | /* Here if a %{|...} conditional fails: output a minus sign, | |
1468 | which means "standard output" or "standard input". */ | |
1469 | do_spec_1 ("-", 0); | |
1470 | } | |
1471 | } | |
1472 | ||
1473 | return q; | |
1474 | } | |
1475 | ||
1476 | /* Pass a switch to the current accumulating command | |
1477 | in the same form that we received it. | |
1478 | SWITCHNUM identifies the switch; it is an index into | |
1479 | the vector of switches gcc received, which is `switches'. | |
1480 | This cannot fail since it never finishes a command line. */ | |
1481 | ||
1482 | give_switch (switchnum) | |
1483 | int switchnum; | |
1484 | { | |
1485 | do_spec_1 ("-", 0); | |
1486 | do_spec_1 (switches[switchnum].part1, 1); | |
1487 | do_spec_1 (" ", 0); | |
1488 | if (switches[switchnum].part2 != 0) | |
1489 | { | |
1490 | do_spec_1 (switches[switchnum].part2, 1); | |
1491 | do_spec_1 (" ", 0); | |
1492 | } | |
1493 | switches[switchnum].valid = 1; | |
1494 | } | |
1495 | \f | |
1496 | /* Search for a file named NAME trying various prefixes including the | |
1497 | user's -B prefix and some standard ones. | |
1498 | Return the absolute pathname found. If nothing is found, return NAME. */ | |
1499 | ||
1500 | char * | |
1501 | find_file (name) | |
1502 | char *name; | |
1503 | { | |
1504 | int size; | |
1505 | char *temp; | |
1506 | int win = 0; | |
1507 | ||
1508 | /* Compute maximum size of NAME plus any prefix we will try. */ | |
1509 | ||
1510 | size = strlen (standard_exec_prefix); | |
1511 | if (user_exec_prefix != 0 && strlen (user_exec_prefix) > size) | |
1512 | size = strlen (user_exec_prefix); | |
1513 | if (env_exec_prefix != 0 && strlen (env_exec_prefix) > size) | |
1514 | size = strlen (env_exec_prefix); | |
1515 | if (strlen (standard_exec_prefix) > size) | |
1516 | size = strlen (standard_exec_prefix); | |
1517 | if (strlen (standard_exec_prefix_1) > size) | |
1518 | size = strlen (standard_exec_prefix_1); | |
1519 | if (strlen (standard_startfile_prefix) > size) | |
1520 | size = strlen (standard_startfile_prefix); | |
1521 | if (strlen (standard_startfile_prefix_1) > size) | |
1522 | size = strlen (standard_startfile_prefix_1); | |
1523 | if (strlen (standard_startfile_prefix_2) > size) | |
1524 | size = strlen (standard_startfile_prefix_2); | |
1525 | if (machine_suffix) | |
1526 | size += strlen (machine_suffix) + 1; | |
1527 | size += strlen (name) + 1; | |
1528 | ||
1529 | temp = (char *) alloca (size); | |
1530 | ||
1531 | if (user_exec_prefix) | |
1532 | { | |
1533 | if (machine_suffix) | |
1534 | { | |
1535 | strcpy (temp, user_exec_prefix); | |
1536 | strcat (temp, machine_suffix); | |
1537 | strcat (temp, name); | |
1538 | win = (access (temp, R_OK) == 0); | |
1539 | } | |
1540 | if (!win) | |
1541 | { | |
1542 | strcpy (temp, user_exec_prefix); | |
1543 | strcat (temp, name); | |
1544 | win = (access (temp, R_OK) == 0); | |
1545 | } | |
1546 | } | |
1547 | ||
1548 | if (!win && env_exec_prefix) | |
1549 | { | |
1550 | if (machine_suffix) | |
1551 | { | |
1552 | strcpy (temp, env_exec_prefix); | |
1553 | strcat (temp, machine_suffix); | |
1554 | strcat (temp, name); | |
1555 | win = (access (temp, R_OK) == 0); | |
1556 | } | |
1557 | if (!win) | |
1558 | { | |
1559 | strcpy (temp, env_exec_prefix); | |
1560 | strcat (temp, name); | |
1561 | win = (access (temp, R_OK) == 0); | |
1562 | } | |
1563 | } | |
1564 | ||
1565 | if (!win) | |
1566 | { | |
1567 | if (machine_suffix) | |
1568 | { | |
1569 | strcpy (temp, standard_exec_prefix); | |
1570 | strcat (temp, machine_suffix); | |
1571 | strcat (temp, name); | |
1572 | win = (access (temp, R_OK) == 0); | |
1573 | } | |
1574 | if (!win) | |
1575 | { | |
1576 | strcpy (temp, standard_exec_prefix); | |
1577 | strcat (temp, name); | |
1578 | win = (access (temp, R_OK) == 0); | |
1579 | } | |
1580 | } | |
1581 | ||
1582 | if (!win) | |
1583 | { | |
1584 | if (machine_suffix) | |
1585 | { | |
1586 | strcpy (temp, standard_exec_prefix_1); | |
1587 | strcat (temp, machine_suffix); | |
1588 | strcat (temp, name); | |
1589 | win = (access (temp, R_OK) == 0); | |
1590 | } | |
1591 | if (!win) | |
1592 | { | |
1593 | strcpy (temp, standard_exec_prefix_1); | |
1594 | strcat (temp, name); | |
1595 | win = (access (temp, R_OK) == 0); | |
1596 | } | |
1597 | } | |
1598 | ||
1599 | if (!win) | |
1600 | { | |
1601 | if (machine_suffix) | |
1602 | { | |
1603 | strcpy (temp, standard_startfile_prefix); | |
1604 | strcat (temp, machine_suffix); | |
1605 | strcat (temp, name); | |
1606 | win = (access (temp, R_OK) == 0); | |
1607 | } | |
1608 | if (!win) | |
1609 | { | |
1610 | strcpy (temp, standard_startfile_prefix); | |
1611 | strcat (temp, name); | |
1612 | win = (access (temp, R_OK) == 0); | |
1613 | } | |
1614 | } | |
1615 | ||
1616 | if (!win) | |
1617 | { | |
1618 | if (machine_suffix) | |
1619 | { | |
1620 | strcpy (temp, standard_startfile_prefix_1); | |
1621 | strcat (temp, machine_suffix); | |
1622 | strcat (temp, name); | |
1623 | win = (access (temp, R_OK) == 0); | |
1624 | } | |
1625 | if (!win) | |
1626 | { | |
1627 | strcpy (temp, standard_startfile_prefix_1); | |
1628 | strcat (temp, name); | |
1629 | win = (access (temp, R_OK) == 0); | |
1630 | } | |
1631 | } | |
1632 | ||
1633 | if (!win) | |
1634 | { | |
1635 | if (machine_suffix) | |
1636 | { | |
1637 | strcpy (temp, standard_startfile_prefix_2); | |
1638 | strcat (temp, machine_suffix); | |
1639 | strcat (temp, name); | |
1640 | win = (access (temp, R_OK) == 0); | |
1641 | } | |
1642 | if (!win) | |
1643 | { | |
1644 | strcpy (temp, standard_startfile_prefix_2); | |
1645 | strcat (temp, name); | |
1646 | win = (access (temp, R_OK) == 0); | |
1647 | } | |
1648 | } | |
1649 | ||
1650 | if (!win) | |
1651 | { | |
1652 | if (machine_suffix) | |
1653 | { | |
1654 | strcpy (temp, "./"); | |
1655 | strcat (temp, machine_suffix); | |
1656 | strcat (temp, name); | |
1657 | win = (access (temp, R_OK) == 0); | |
1658 | } | |
1659 | if (!win) | |
1660 | { | |
1661 | strcpy (temp, "./"); | |
1662 | strcat (temp, name); | |
1663 | win = (access (temp, R_OK) == 0); | |
1664 | } | |
1665 | } | |
1666 | ||
1667 | if (win) | |
1668 | return save_string (temp, strlen (temp)); | |
1669 | return name; | |
1670 | } | |
1671 | \f | |
1672 | /* On fatal signals, delete all the temporary files. */ | |
1673 | ||
1674 | void | |
1675 | fatal_error (signum) | |
1676 | int signum; | |
1677 | { | |
1678 | signal (signum, SIG_DFL); | |
1679 | delete_failure_queue (); | |
1680 | delete_temp_files (); | |
1681 | /* Get the same signal again, this time not handled, | |
1682 | so its normal effect occurs. */ | |
1683 | kill (getpid (), signum); | |
1684 | } | |
1685 | ||
1686 | int | |
1687 | main (argc, argv) | |
1688 | int argc; | |
1689 | char **argv; | |
1690 | { | |
1691 | register int i; | |
1692 | int value; | |
1693 | int error_count = 0; | |
1694 | int linker_was_run = 0; | |
1695 | char *explicit_link_files; | |
1696 | ||
1697 | programname = argv[0]; | |
1698 | ||
1699 | if (signal (SIGINT, SIG_IGN) != SIG_IGN) | |
1700 | signal (SIGINT, fatal_error); | |
1701 | if (signal (SIGHUP, SIG_IGN) != SIG_IGN) | |
1702 | signal (SIGHUP, fatal_error); | |
1703 | if (signal (SIGTERM, SIG_IGN) != SIG_IGN) | |
1704 | signal (SIGTERM, fatal_error); | |
1705 | if (signal (SIGPIPE, SIG_IGN) != SIG_IGN) | |
1706 | signal (SIGPIPE, fatal_error); | |
1707 | ||
1708 | argbuf_length = 10; | |
1709 | argbuf = (char **) xmalloc (argbuf_length * sizeof (char *)); | |
1710 | ||
1711 | obstack_init (&obstack); | |
1712 | ||
1713 | choose_temp_base (); | |
1714 | ||
1715 | /* Make a table of what switches there are (switches, n_switches). | |
1716 | Make a table of specified input files (infiles, n_infiles). */ | |
1717 | ||
1718 | process_command (argc, argv); | |
1719 | ||
1720 | if (vflag) | |
1721 | { | |
1722 | extern char *version_string; | |
1723 | fprintf (stderr, "gcc version %s\n", version_string); | |
1724 | if (n_infiles == 0) | |
1725 | exit (0); | |
1726 | } | |
1727 | ||
1728 | if (n_infiles == 0) | |
1729 | fatal ("No input files specified."); | |
1730 | ||
1731 | /* Make a place to record the compiler output file names | |
1732 | that correspond to the input files. */ | |
1733 | ||
1734 | outfiles = (char **) xmalloc (n_infiles * sizeof (char *)); | |
1735 | bzero (outfiles, n_infiles * sizeof (char *)); | |
1736 | ||
1737 | /* Record which files were specified explicitly as link input. */ | |
1738 | ||
1739 | explicit_link_files = (char *) xmalloc (n_infiles); | |
1740 | bzero (explicit_link_files, n_infiles); | |
1741 | ||
1742 | for (i = 0; i < n_infiles; i++) | |
1743 | { | |
1744 | register struct compiler *cp; | |
1745 | int this_file_error = 0; | |
1746 | ||
1747 | /* Tell do_spec what to substitute for %i. */ | |
1748 | ||
1749 | input_filename = infiles[i]; | |
1750 | input_filename_length = strlen (input_filename); | |
1751 | input_file_number = i; | |
1752 | ||
1753 | /* Use the same thing in %o, unless cp->spec says otherwise. */ | |
1754 | ||
1755 | outfiles[i] = input_filename; | |
1756 | ||
1757 | /* Figure out which compiler from the file's suffix. */ | |
1758 | ||
1759 | for (cp = compilers; cp->spec; cp++) | |
1760 | { | |
1761 | if (strlen (cp->suffix) < input_filename_length | |
1762 | && !strcmp (cp->suffix, | |
1763 | infiles[i] + input_filename_length | |
1764 | - strlen (cp->suffix))) | |
1765 | { | |
1766 | /* Ok, we found an applicable compiler. Run its spec. */ | |
1767 | /* First say how much of input_filename to substitute for %b */ | |
1768 | register char *p; | |
1769 | ||
1770 | input_basename = input_filename; | |
1771 | for (p = input_filename; *p; p++) | |
1772 | if (*p == '/') | |
1773 | input_basename = p + 1; | |
1774 | basename_length = (input_filename_length - strlen (cp->suffix) | |
1775 | - (input_basename - input_filename)); | |
1776 | value = do_spec (cp->spec); | |
1777 | if (value < 0) | |
1778 | this_file_error = 1; | |
1779 | break; | |
1780 | } | |
1781 | } | |
1782 | ||
1783 | /* If this file's name does not contain a recognized suffix, | |
1784 | record it as explicit linker input. */ | |
1785 | ||
1786 | if (! cp->spec) | |
1787 | explicit_link_files[i] = 1; | |
1788 | ||
1789 | /* Clear the delete-on-failure queue, deleting the files in it | |
1790 | if this compilation failed. */ | |
1791 | ||
1792 | if (this_file_error) | |
1793 | { | |
1794 | delete_failure_queue (); | |
1795 | error_count++; | |
1796 | } | |
1797 | /* If this compilation succeeded, don't delete those files later. */ | |
1798 | clear_failure_queue (); | |
1799 | } | |
1800 | ||
1801 | /* Run ld to link all the compiler output files. */ | |
1802 | ||
1803 | if (error_count == 0) | |
1804 | { | |
1805 | int tmp = execution_count; | |
1806 | value = do_spec (link_spec); | |
1807 | if (value < 0) | |
1808 | error_count = 1; | |
1809 | linker_was_run = (tmp != execution_count); | |
1810 | } | |
1811 | ||
1812 | /* If options said don't run linker, | |
1813 | complain about input files to be given to the linker. */ | |
1814 | ||
1815 | if (! linker_was_run && error_count == 0) | |
1816 | for (i = 0; i < n_infiles; i++) | |
1817 | if (explicit_link_files[i]) | |
1818 | error ("%s: linker input file unused since linking not done", | |
1819 | outfiles[i]); | |
1820 | ||
1821 | /* Set the `valid' bits for switches that match anything in any spec. */ | |
1822 | ||
1823 | validate_all_switches (); | |
1824 | ||
1825 | /* Warn about any switches that no pass was interested in. */ | |
1826 | ||
1827 | for (i = 0; i < n_switches; i++) | |
1828 | if (! switches[i].valid) | |
1829 | error ("unrecognized option `-%s'", switches[i].part1); | |
1830 | ||
1831 | /* Delete some or all of the temporary files we made. */ | |
1832 | ||
1833 | if (error_count) | |
1834 | delete_failure_queue (); | |
1835 | delete_temp_files (); | |
1836 | ||
1837 | exit (error_count); | |
1838 | } | |
1839 | \f | |
1840 | xmalloc (size) | |
1841 | int size; | |
1842 | { | |
1843 | register int value = malloc (size); | |
1844 | if (value == 0) | |
1845 | fatal ("Virtual memory full."); | |
1846 | return value; | |
1847 | } | |
1848 | ||
1849 | xrealloc (ptr, size) | |
1850 | int ptr, size; | |
1851 | { | |
1852 | register int value = realloc (ptr, size); | |
1853 | if (value == 0) | |
1854 | fatal ("Virtual memory full."); | |
1855 | return value; | |
1856 | } | |
1857 | ||
1858 | /* Return a newly-allocated string whose contents concatenate those of s1, s2, s3. */ | |
1859 | ||
1860 | char * | |
1861 | concat (s1, s2, s3) | |
1862 | char *s1, *s2, *s3; | |
1863 | { | |
1864 | int len1 = strlen (s1), len2 = strlen (s2), len3 = strlen (s3); | |
1865 | char *result = (char *) xmalloc (len1 + len2 + len3 + 1); | |
1866 | ||
1867 | strcpy (result, s1); | |
1868 | strcpy (result + len1, s2); | |
1869 | strcpy (result + len1 + len2, s3); | |
1870 | *(result + len1 + len2 + len3) = 0; | |
1871 | ||
1872 | return result; | |
1873 | } | |
1874 | ||
1875 | char * | |
1876 | save_string (s, len) | |
1877 | char *s; | |
1878 | int len; | |
1879 | { | |
1880 | register char *result = (char *) xmalloc (len + 1); | |
1881 | ||
1882 | bcopy (s, result, len); | |
1883 | result[len] = 0; | |
1884 | return result; | |
1885 | } | |
1886 | ||
1887 | pfatal_with_name (name) | |
1888 | char *name; | |
1889 | { | |
1890 | extern int errno, sys_nerr; | |
1891 | extern char *sys_errlist[]; | |
1892 | char *s; | |
1893 | ||
1894 | if (errno < sys_nerr) | |
1895 | s = concat ("%s: ", sys_errlist[errno], ""); | |
1896 | else | |
1897 | s = "cannot open %s"; | |
1898 | fatal (s, name); | |
1899 | } | |
1900 | ||
1901 | perror_with_name (name) | |
1902 | char *name; | |
1903 | { | |
1904 | extern int errno, sys_nerr; | |
1905 | extern char *sys_errlist[]; | |
1906 | char *s; | |
1907 | ||
1908 | if (errno < sys_nerr) | |
1909 | s = concat ("%s: ", sys_errlist[errno], ""); | |
1910 | else | |
1911 | s = "cannot open %s"; | |
1912 | error (s, name); | |
1913 | } | |
1914 | ||
1915 | perror_exec (name) | |
1916 | char *name; | |
1917 | { | |
1918 | extern int errno, sys_nerr; | |
1919 | extern char *sys_errlist[]; | |
1920 | char *s; | |
1921 | ||
1922 | if (errno < sys_nerr) | |
1923 | s = concat ("installation problem, cannot exec %s: ", | |
1924 | sys_errlist[errno], ""); | |
1925 | else | |
1926 | s = "installation problem, cannot exec %s"; | |
1927 | error (s, name); | |
1928 | } | |
1929 | ||
1930 | /* More 'friendly' abort that prints the line and file. | |
1931 | config.h can #define abort fancy_abort if you like that sort of thing. */ | |
1932 | ||
1933 | void | |
1934 | fancy_abort () | |
1935 | { | |
1936 | fatal ("Internal gcc abort."); | |
1937 | } | |
1938 | \f | |
1939 | #ifdef HAVE_VPRINTF | |
1940 | ||
1941 | /* Output an error message and exit */ | |
1942 | ||
1943 | int | |
1944 | fatal (va_alist) | |
1945 | va_dcl | |
1946 | { | |
1947 | va_list ap; | |
1948 | char *format; | |
1949 | ||
1950 | va_start(ap); | |
1951 | format = va_arg (ap, char *); | |
1952 | vfprintf (stderr, format, ap); | |
1953 | va_end (ap); | |
1954 | fprintf (stderr, "\n"); | |
1955 | delete_temp_files (); | |
1956 | exit (1); | |
1957 | } | |
1958 | ||
1959 | error (va_alist) | |
1960 | va_dcl | |
1961 | { | |
1962 | va_list ap; | |
1963 | char *format; | |
1964 | ||
1965 | va_start(ap); | |
1966 | format = va_arg (ap, char *); | |
1967 | fprintf (stderr, "%s: ", programname); | |
1968 | vfprintf (stderr, format, ap); | |
1969 | va_end (ap); | |
1970 | ||
1971 | fprintf (stderr, "\n"); | |
1972 | } | |
1973 | ||
1974 | #else /* not HAVE_VPRINTF */ | |
1975 | ||
1976 | fatal (msg, arg1, arg2) | |
1977 | char *msg, *arg1, *arg2; | |
1978 | { | |
1979 | error (msg, arg1, arg2); | |
1980 | delete_temp_files (0); | |
1981 | exit (1); | |
1982 | } | |
1983 | ||
1984 | error (msg, arg1, arg2) | |
1985 | char *msg, *arg1, *arg2; | |
1986 | { | |
1987 | fprintf (stderr, "%s: ", programname); | |
1988 | fprintf (stderr, msg, arg1, arg2); | |
1989 | fprintf (stderr, "\n"); | |
1990 | } | |
1991 | ||
1992 | #endif /* not HAVE_VPRINTF */ | |
1993 | ||
1994 | \f | |
1995 | void | |
1996 | validate_all_switches () | |
1997 | { | |
1998 | struct compiler *comp; | |
1999 | register char *p; | |
2000 | register char c; | |
2001 | ||
2002 | for (comp = compilers; comp->spec; comp++) | |
2003 | { | |
2004 | p = comp->spec; | |
2005 | while (c = *p++) | |
2006 | if (c == '%' && *p == '{') | |
2007 | /* We have a switch spec. */ | |
2008 | validate_switches (p + 1); | |
2009 | } | |
2010 | ||
2011 | p = link_spec; | |
2012 | while (c = *p++) | |
2013 | if (c == '%' && *p == '{') | |
2014 | /* We have a switch spec. */ | |
2015 | validate_switches (p + 1); | |
2016 | ||
2017 | /* Now notice switches mentioned in the machine-specific specs. */ | |
2018 | ||
2019 | #ifdef ASM_SPEC | |
2020 | p = ASM_SPEC; | |
2021 | while (c = *p++) | |
2022 | if (c == '%' && *p == '{') | |
2023 | /* We have a switch spec. */ | |
2024 | validate_switches (p + 1); | |
2025 | #endif | |
2026 | ||
2027 | #ifdef CPP_SPEC | |
2028 | p = CPP_SPEC; | |
2029 | while (c = *p++) | |
2030 | if (c == '%' && *p == '{') | |
2031 | /* We have a switch spec. */ | |
2032 | validate_switches (p + 1); | |
2033 | #endif | |
2034 | ||
2035 | #ifdef SIGNED_CHAR_SPEC | |
2036 | p = SIGNED_CHAR_SPEC; | |
2037 | while (c = *p++) | |
2038 | if (c == '%' && *p == '{') | |
2039 | /* We have a switch spec. */ | |
2040 | validate_switches (p + 1); | |
2041 | #endif | |
2042 | ||
2043 | #ifdef CC1_SPEC | |
2044 | p = CC1_SPEC; | |
2045 | while (c = *p++) | |
2046 | if (c == '%' && *p == '{') | |
2047 | /* We have a switch spec. */ | |
2048 | validate_switches (p + 1); | |
2049 | #endif | |
2050 | ||
2051 | #ifdef LINK_SPEC | |
2052 | p = LINK_SPEC; | |
2053 | while (c = *p++) | |
2054 | if (c == '%' && *p == '{') | |
2055 | /* We have a switch spec. */ | |
2056 | validate_switches (p + 1); | |
2057 | #endif | |
2058 | ||
2059 | #ifdef LIB_SPEC | |
2060 | p = LIB_SPEC; | |
2061 | while (c = *p++) | |
2062 | if (c == '%' && *p == '{') | |
2063 | /* We have a switch spec. */ | |
2064 | validate_switches (p + 1); | |
2065 | #endif | |
2066 | ||
2067 | #ifdef STARTFILE_SPEC | |
2068 | p = STARTFILE_SPEC; | |
2069 | while (c = *p++) | |
2070 | if (c == '%' && *p == '{') | |
2071 | /* We have a switch spec. */ | |
2072 | validate_switches (p + 1); | |
2073 | #endif | |
2074 | } | |
2075 | ||
2076 | /* Look at the switch-name that comes after START | |
2077 | and mark as valid all supplied switches that match it. */ | |
2078 | ||
2079 | void | |
2080 | validate_switches (start) | |
2081 | char *start; | |
2082 | { | |
2083 | register char *p = start; | |
2084 | char *filter; | |
2085 | register int i; | |
2086 | ||
2087 | if (*p == '|') | |
2088 | ++p; | |
2089 | ||
2090 | if (*p == '!') | |
2091 | ++p; | |
2092 | ||
2093 | filter = p; | |
2094 | while (*p != ':' && *p != '}') p++; | |
2095 | ||
2096 | if (p[-1] == '*') | |
2097 | { | |
2098 | /* Mark all matching switches as valid. */ | |
2099 | --p; | |
2100 | for (i = 0; i < n_switches; i++) | |
2101 | if (!strncmp (switches[i].part1, filter, p - filter)) | |
2102 | switches[i].valid = 1; | |
2103 | } | |
2104 | else | |
2105 | { | |
2106 | /* Mark an exact matching switch as valid. */ | |
2107 | for (i = 0; i < n_switches; i++) | |
2108 | { | |
2109 | if (!strncmp (switches[i].part1, filter, p - filter) | |
2110 | && switches[i].part1[p - filter] == 0) | |
2111 | switches[i].valid = 1; | |
2112 | } | |
2113 | } | |
2114 | } |