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10333 cw: error: comparison between pointer and zero character constant
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--- old/usr/src/tools/cw/cw.c
+++ new/usr/src/tools/cw/cw.c
1 1
2 2 /*
3 3 * CDDL HEADER START
4 4 *
5 5 * The contents of this file are subject to the terms of the
6 6 * Common Development and Distribution License (the "License").
7 7 * You may not use this file except in compliance with the License.
8 8 *
9 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 10 * or http://www.opensolaris.org/os/licensing.
11 11 * See the License for the specific language governing permissions
12 12 * and limitations under the License.
13 13 *
14 14 * When distributing Covered Code, include this CDDL HEADER in each
15 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 16 * If applicable, add the following below this CDDL HEADER, with the
17 17 * fields enclosed by brackets "[]" replaced with your own identifying
18 18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 19 *
20 20 * CDDL HEADER END
21 21 */
22 22
23 23 /*
24 24 * Copyright 2018, Richard Lowe.
25 25 */
26 26 /*
27 27 * Copyright 2010 Sun Microsystems, Inc. All rights reserved.
28 28 * Use is subject to license terms.
29 29 *
30 30 * Copyright 2019 Joyent, Inc.
31 31 */
32 32
33 33 /*
34 34 * Wrapper for the GNU C compiler to make it accept the Sun C compiler
35 35 * arguments where possible.
36 36 *
37 37 * Since the translation is inexact, this is something of a work-in-progress.
38 38 *
39 39 */
40 40
41 41 /* If you modify this file, you must increment CW_VERSION */
42 42 #define CW_VERSION "4.0"
43 43
44 44 /*
45 45 * -# Verbose mode
46 46 * -### Show compiler commands built by driver, no compilation
47 47 * -A<name[(tokens)]> Preprocessor predicate assertion
48 48 * -B<[static|dynamic]> Specify dynamic or static binding
49 49 * -C Prevent preprocessor from removing comments
50 50 * -c Compile only - produce .o files, suppress linking
51 51 * -cg92 Alias for -xtarget=ss1000
52 52 * -D<name[=token]> Associate name with token as if by #define
53 53 * -d[y|n] dynamic [-dy] or static [-dn] option to linker
54 54 * -E Compile source through preprocessor only, output to stdout
55 55 * -erroff=<t> Suppress warnings specified by tags t(%none, %all, <tag list>)
56 56 * -errtags=<a> Display messages with tags a(no, yes)
57 57 * -errwarn=<t> Treats warnings specified by tags t(%none, %all, <tag list>)
58 58 * as errors
59 59 * -fast Optimize using a selection of options
60 60 * -fd Report old-style function definitions and declarations
61 61 * -fnonstd Initialize floating-point hardware to non-standard preferences
62 62 * -fns[=<yes|no>] Select non-standard floating point mode
63 63 * -fprecision=<p> Set FP rounding precision mode p(single, double, extended)
64 64 * -fround=<r> Select the IEEE rounding mode in effect at startup
65 65 * -fsimple[=<n>] Select floating-point optimization preferences <n>
66 66 * -fsingle Use single-precision arithmetic (-Xt and -Xs modes only)
67 67 * -ftrap=<t> Select floating-point trapping mode in effect at startup
68 68 * -fstore force floating pt. values to target precision on assignment
69 69 * -G Build a dynamic shared library
70 70 * -g Compile for debugging
71 71 * -H Print path name of each file included during compilation
72 72 * -h <name> Assign <name> to generated dynamic shared library
73 73 * -I<dir> Add <dir> to preprocessor #include file search path
74 74 * -i Passed to linker to ignore any LD_LIBRARY_PATH setting
75 75 * -keeptmp Keep temporary files created during compilation
76 76 * -L<dir> Pass to linker to add <dir> to the library search path
77 77 * -l<name> Link with library lib<name>.a or lib<name>.so
78 78 * -mc Remove duplicate strings from .comment section of output files
79 79 * -mr Remove all strings from .comment section of output files
80 80 * -mr,"string" Remove all strings and append "string" to .comment section
81 81 * -mt Specify options needed when compiling multi-threaded code
82 82 * -native Find available processor, generate code accordingly
83 83 * -nofstore Do not force floating pt. values to target precision
84 84 * on assignment
85 85 * -norunpath Do not build in a runtime path for shared libraries
86 86 * -O Use default optimization level (-xO2 or -xO3. Check man page.)
87 87 * -o <outputfile> Set name of output file to <outputfile>
88 88 * -P Compile source through preprocessor only, output to .i file
89 89 * -p Compile for profiling with prof
90 90 * -Q[y|n] Emit/don't emit identification info to output file
91 91 * -R<dir[:dir]> Build runtime search path list into executable
92 92 * -S Compile and only generate assembly code (.s)
93 93 * -s Strip symbol table from the executable file
94 94 * -t Turn off duplicate symbol warnings when linking
95 95 * -U<name> Delete initial definition of preprocessor symbol <name>
96 96 * -V Report version number of each compilation phase
97 97 * -v Do stricter semantic checking
98 98 * -W<c>,<arg> Pass <arg> to specified component <c> (a,l,m,p,0,2,h,i,u)
99 99 * -w Suppress compiler warning messages
100 100 * -Xa Compile assuming ANSI C conformance, allow K & R extensions
101 101 * (default mode)
102 102 * -Xs Compile assuming (pre-ANSI) K & R C style code
103 103 * -Xt Compile assuming K & R conformance, allow ANSI C
104 104 * -xarch=<a> Specify target architecture instruction set
105 105 * -xbuiltin[=<b>] When profitable inline, or substitute intrinisic functions
106 106 * for system functions, b={%all,%none}
107 107 * -xCC Accept C++ style comments
108 108 * -xchip=<c> Specify the target processor for use by the optimizer
109 109 * -xcode=<c> Generate different code for forming addresses
110 110 * -xcrossfile[=<n>] Enable optimization and inlining across source files,
111 111 * n={0|1}
112 112 * -xe Perform only syntax/semantic checking, no code generation
113 113 * -xF Compile for later mapfile reordering or unused section
114 114 * elimination
115 115 * -xhelp=<f> Display on-line help information f(flags, readme, errors)
116 116 * -xildoff Cancel -xildon
117 117 * -xildon Enable use of the incremental linker, ild
118 118 * -xinline=[<a>,...,<a>] Attempt inlining of specified user routines,
119 119 * <a>={%auto,func,no%func}
120 120 * -xlibmieee Force IEEE 754 return values for math routines in
121 121 * exceptional cases
122 122 * -xlibmil Inline selected libm math routines for optimization
123 123 * -xlic_lib=sunperf Link in the Sun supplied performance libraries
124 124 * -xlicinfo Show license server information
125 125 * -xmaxopt=[off,1,2,3,4,5] maximum optimization level allowed on #pragma opt
126 126 * -xO<n> Generate optimized code (n={1|2|3|4|5})
127 127 * -xP Print prototypes for function definitions
128 128 * -xprofile=<p> Collect data for a profile or use a profile to optimize
129 129 * <p>={{collect,use}[:<path>],tcov}
130 130 * -xregs=<r> Control register allocation
131 131 * -xs Allow debugging without object (.o) files
132 132 * -xsb Compile for use with the WorkShop source browser
133 133 * -xsbfast Generate only WorkShop source browser info, no compilation
134 134 * -xsfpconst Represent unsuffixed floating point constants as single
135 135 * precision
136 136 * -xspace Do not do optimizations that increase code size
137 137 * -xstrconst Place string literals into read-only data segment
138 138 * -xtarget=<t> Specify target system for optimization
139 139 * -xtemp=<dir> Set directory for temporary files to <dir>
140 140 * -xtime Report the execution time for each compilation phase
141 141 * -xunroll=n Enable unrolling loops n times where possible
142 142 * -Y<c>,<dir> Specify <dir> for location of component <c> (a,l,m,p,0,h,i,u)
143 143 * -YA,<dir> Change default directory searched for components
144 144 * -YI,<dir> Change default directory searched for include files
145 145 * -YP,<dir> Change default directory for finding libraries files
146 146 * -YS,<dir> Change default directory for startup object files
147 147 */
148 148
149 149 /*
150 150 * Translation table:
151 151 */
152 152 /*
153 153 * -# -v
154 154 * -### error
155 155 * -A<name[(tokens)]> pass-thru
156 156 * -B<[static|dynamic]> pass-thru (syntax error for anything else)
157 157 * -C pass-thru
158 158 * -c pass-thru
159 159 * -cg92 -m32 -mcpu=v8 -mtune=supersparc (SPARC only)
160 160 * -D<name[=token]> pass-thru
161 161 * -dy or -dn -Wl,-dy or -Wl,-dn
162 162 * -E pass-thru
163 163 * -erroff=E_EMPTY_TRANSLATION_UNIT ignore
164 164 * -errtags=%all -Wall
165 165 * -errwarn=%all -Werror else -Wno-error
166 166 * -fast error
167 167 * -fd error
168 168 * -fnonstd error
169 169 * -fns[=<yes|no>] error
170 170 * -fprecision=<p> error
171 171 * -fround=<r> error
172 172 * -fsimple[=<n>] error
173 173 * -fsingle[=<n>] error
174 174 * -ftrap=<t> error
175 175 * -fstore error
176 176 * -G pass-thru
177 177 * -g pass-thru
178 178 * -H pass-thru
179 179 * -h <name> pass-thru
180 180 * -I<dir> pass-thru
181 181 * -i pass-thru
182 182 * -keeptmp -save-temps
183 183 * -L<dir> pass-thru
184 184 * -l<name> pass-thru
185 185 * -mc error
186 186 * -mr error
187 187 * -mr,"string" error
188 188 * -mt -D_REENTRANT
189 189 * -native error
190 190 * -nofstore error
191 191 * -nolib -nodefaultlibs
192 192 * -norunpath ignore
193 193 * -O -O1 (Check the man page to be certain)
194 194 * -o <outputfile> pass-thru
195 195 * -P -E -o filename.i (or error)
196 196 * -p pass-thru
197 197 * -Q[y|n] error
198 198 * -R<dir[:dir]> pass-thru
199 199 * -S pass-thru
200 200 * -s -Wl,-s
201 201 * -t -Wl,-t
202 202 * -U<name> pass-thru
203 203 * -V --version
204 204 * -v -Wall
205 205 * -Wa,<arg> pass-thru
206 206 * -Wp,<arg> pass-thru except -xc99=<a>
207 207 * -Wl,<arg> pass-thru
208 208 * -W{m,0,2,h,i,u> error/ignore
209 209 * -xmodel=kernel -ffreestanding -mcmodel=kernel -mno-red-zone
210 210 * -Wu,-save_args -msave-args
211 211 * -w pass-thru
212 212 * -Xa -std=iso9899:199409 or -ansi
213 213 * -Xt error
214 214 * -Xs -traditional -std=c89
215 215 * -xarch=<a> table
216 216 * -xbuiltin[=<b>] -fbuiltin (-fno-builtin otherwise)
217 217 * -xCC ignore
218 218 * -xchip=<c> table
219 219 * -xcode=<c> table
220 220 * -xcrossfile[=<n>] ignore
221 221 * -xe error
222 222 * -xF error
223 223 * -xhelp=<f> error
224 224 * -xildoff ignore
225 225 * -xildon ignore
226 226 * -xinline ignore
227 227 * -xlibmieee error
228 228 * -xlibmil error
229 229 * -xlic_lib=sunperf error
230 230 * -xmaxopt=[...] error
231 231 * -xO<n> -O<n>
232 232 * -xP error
233 233 * -xprofile=<p> error
234 234 * -xregs=<r> table
235 235 * -xs error
236 236 * -xsb error
237 237 * -xsbfast error
238 238 * -xsfpconst error
239 239 * -xspace ignore (-not -Os)
240 240 * -xstrconst ignore
241 241 * -xtarget=<t> table
242 242 * -xtemp=<dir> error
243 243 * -xtime error
244 244 * -xtransition -Wtransition
245 245 * -xunroll=n error
246 246 * -W0,-xdbggen=no%usedonly -fno-eliminate-unused-debug-symbols
247 247 * -fno-eliminate-unused-debug-types
248 248 * -Y<c>,<dir> error
249 249 * -YA,<dir> error
250 250 * -YI,<dir> -nostdinc -I<dir>
251 251 * -YP,<dir> error
252 252 * -YS,<dir> error
253 253 */
254 254
255 255 #include <ctype.h>
256 256 #include <err.h>
257 257 #include <errno.h>
258 258 #include <fcntl.h>
259 259 #include <getopt.h>
260 260 #include <stdio.h>
261 261 #include <stdlib.h>
262 262 #include <string.h>
263 263 #include <unistd.h>
264 264 #include <dirent.h>
265 265
266 266 #include <sys/param.h>
267 267 #include <sys/stat.h>
268 268 #include <sys/types.h>
269 269 #include <sys/utsname.h>
270 270 #include <sys/wait.h>
271 271
272 272 #define CW_F_CXX 0x01
273 273 #define CW_F_SHADOW 0x02
274 274 #define CW_F_EXEC 0x04
275 275 #define CW_F_ECHO 0x08
276 276 #define CW_F_XLATE 0x10
277 277 #define CW_F_PROG 0x20
278 278
279 279 typedef enum cw_op {
280 280 CW_O_NONE = 0,
281 281 CW_O_PREPROCESS,
282 282 CW_O_COMPILE,
283 283 CW_O_LINK
284 284 } cw_op_t;
285 285
286 286 struct aelist {
287 287 struct ae {
288 288 struct ae *ae_next;
289 289 char *ae_arg;
290 290 } *ael_head, *ael_tail;
291 291 int ael_argc;
292 292 };
293 293
294 294 typedef enum {
295 295 GNU,
296 296 SUN,
297 297 SMATCH
298 298 } compiler_style_t;
299 299
300 300 typedef struct {
301 301 char *c_name;
302 302 char *c_path;
303 303 compiler_style_t c_style;
304 304 } cw_compiler_t;
305 305
306 306 typedef struct cw_ictx {
307 307 struct cw_ictx *i_next;
308 308 cw_compiler_t *i_compiler;
309 309 struct aelist *i_ae;
310 310 uint32_t i_flags;
311 311 int i_oldargc;
312 312 char **i_oldargv;
313 313 pid_t i_pid;
314 314 char *i_tmpdir;
315 315 char *i_stderr;
316 316 } cw_ictx_t;
317 317
318 318 /*
319 319 * Status values to indicate which Studio compiler and associated
320 320 * flags are being used.
321 321 */
322 322 #define M32 0x01 /* -m32 - only on Studio 12 */
323 323 #define M64 0x02 /* -m64 - only on Studio 12 */
324 324 #define SS11 0x100 /* Studio 11 */
325 325 #define SS12 0x200 /* Studio 12 */
326 326
327 327 #define TRANS_ENTRY 5
328 328 /*
329 329 * Translation table definition for the -xarch= flag. The "x_arg"
330 330 * value is translated into the appropriate gcc flags according
331 331 * to the values in x_trans[n]. The x_flags indicates what compiler
332 332 * is being used and what flags have been set via the use of
333 333 * "x_arg".
334 334 */
335 335 typedef struct xarch_table {
336 336 char *x_arg;
337 337 int x_flags;
338 338 char *x_trans[TRANS_ENTRY];
339 339 } xarch_table_t;
340 340
341 341 /*
342 342 * The translation table for the -xarch= flag used in the Studio compilers.
343 343 */
344 344 static const xarch_table_t xtbl[] = {
345 345 #if defined(__x86)
346 346 { "generic", SS11, {NULL} },
347 347 { "generic64", (SS11|M64), { "-m64", "-mtune=opteron" } },
348 348 { "amd64", (SS11|M64), { "-m64", "-mtune=opteron" } },
349 349 { "386", SS11, { "-march=i386" } },
350 350 { "pentium_pro", SS11, { "-march=pentiumpro" } },
351 351 { "sse", SS11, { "-msse", "-mfpmath=sse" } },
352 352 { "sse2", SS11, { "-msse2", "-mfpmath=sse" } },
353 353 #elif defined(__sparc)
354 354 { "generic", (SS11|M32), { "-m32", "-mcpu=v8" } },
355 355 { "generic64", (SS11|M64), { "-m64", "-mcpu=v9" } },
356 356 { "v8", (SS11|M32), { "-m32", "-mcpu=v8", "-mno-v8plus" } },
357 357 { "v8plus", (SS11|M32), { "-m32", "-mcpu=v9", "-mv8plus" } },
358 358 { "v8plusa", (SS11|M32), { "-m32", "-mcpu=ultrasparc", "-mv8plus",
359 359 "-mvis" } },
360 360 { "v8plusb", (SS11|M32), { "-m32", "-mcpu=ultrasparc3", "-mv8plus",
361 361 "-mvis" } },
362 362 { "v9", (SS11|M64), { "-m64", "-mcpu=v9" } },
363 363 { "v9a", (SS11|M64), { "-m64", "-mcpu=ultrasparc", "-mvis" } },
364 364 { "v9b", (SS11|M64), { "-m64", "-mcpu=ultrasparc3", "-mvis" } },
365 365 { "sparc", SS12, { "-mcpu=v9", "-mv8plus" } },
366 366 { "sparcvis", SS12, { "-mcpu=ultrasparc", "-mvis" } },
367 367 { "sparcvis2", SS12, { "-mcpu=ultrasparc3", "-mvis" } }
368 368 #endif
369 369 };
370 370
371 371 static int xtbl_size = sizeof (xtbl) / sizeof (xarch_table_t);
372 372
373 373 static const char *xchip_tbl[] = {
374 374 #if defined(__x86)
375 375 "386", "-mtune=i386", NULL,
376 376 "486", "-mtune=i486", NULL,
377 377 "pentium", "-mtune=pentium", NULL,
378 378 "pentium_pro", "-mtune=pentiumpro", NULL,
379 379 #elif defined(__sparc)
380 380 "super", "-mtune=supersparc", NULL,
381 381 "ultra", "-mtune=ultrasparc", NULL,
382 382 "ultra3", "-mtune=ultrasparc3", NULL,
383 383 #endif
384 384 NULL, NULL
385 385 };
386 386
387 387 static const char *xcode_tbl[] = {
388 388 #if defined(__sparc)
389 389 "abs32", "-fno-pic", "-mcmodel=medlow", NULL,
390 390 "abs44", "-fno-pic", "-mcmodel=medmid", NULL,
391 391 "abs64", "-fno-pic", "-mcmodel=medany", NULL,
392 392 "pic13", "-fpic", NULL,
393 393 "pic32", "-fPIC", NULL,
394 394 #endif
395 395 NULL, NULL
396 396 };
397 397
398 398 static const char *xtarget_tbl[] = {
399 399 #if defined(__x86)
400 400 "pentium_pro", "-march=pentiumpro", NULL,
401 401 #endif /* __x86 */
402 402 NULL, NULL
403 403 };
404 404
405 405 static const char *xregs_tbl[] = {
406 406 #if defined(__sparc)
407 407 "appl", "-mapp-regs", NULL,
408 408 "no%appl", "-mno-app-regs", NULL,
409 409 "float", "-mfpu", NULL,
410 410 "no%float", "-mno-fpu", NULL,
411 411 #endif /* __sparc */
412 412 NULL, NULL
413 413 };
414 414
415 415 static void
416 416 nomem(void)
417 417 {
418 418 errx(1, "out of memory");
419 419 }
420 420
421 421 static void
422 422 newae(struct aelist *ael, const char *arg)
423 423 {
424 424 struct ae *ae;
425 425
426 426 if ((ae = calloc(sizeof (*ae), 1)) == NULL)
427 427 nomem();
428 428 ae->ae_arg = strdup(arg);
429 429 if (ael->ael_tail == NULL)
430 430 ael->ael_head = ae;
431 431 else
432 432 ael->ael_tail->ae_next = ae;
433 433 ael->ael_tail = ae;
434 434 ael->ael_argc++;
435 435 }
436 436
437 437 static cw_ictx_t *
438 438 newictx(void)
439 439 {
440 440 cw_ictx_t *ctx = calloc(sizeof (cw_ictx_t), 1);
441 441 if (ctx)
442 442 if ((ctx->i_ae = calloc(sizeof (struct aelist), 1)) == NULL) {
443 443 free(ctx);
444 444 return (NULL);
445 445 }
446 446
447 447 return (ctx);
448 448 }
449 449
450 450 static void
451 451 error(const char *arg)
452 452 {
453 453 errx(2, "error: mapping failed at or near arg '%s'", arg);
454 454 }
455 455
456 456 /*
457 457 * Add the current favourite set of warnings to the gcc invocation.
458 458 */
459 459 static void
460 460 warnings(struct aelist *h)
461 461 {
462 462 static int warningsonce;
463 463
464 464 if (warningsonce++)
465 465 return;
466 466
467 467 /*
468 468 * Enable as many warnings as exist, then disable those that we never
469 469 * ever want.
470 470 */
471 471 newae(h, "-Wall");
472 472 newae(h, "-Wextra");
473 473 }
474 474
475 475 static void
476 476 optim_disable(struct aelist *h, int level)
477 477 {
478 478 if (level >= 2) {
479 479 newae(h, "-fno-strict-aliasing");
480 480 newae(h, "-fno-unit-at-a-time");
481 481 newae(h, "-fno-optimize-sibling-calls");
482 482 }
483 483 }
484 484
485 485 static void
486 486 Xsmode(struct aelist *h)
487 487 {
488 488 static int xsonce;
489 489
490 490 if (xsonce++)
491 491 return;
492 492
493 493 newae(h, "-traditional");
494 494 newae(h, "-traditional-cpp");
495 495 }
496 496
497 497 static void
498 498 usage()
499 499 {
500 500 extern char *__progname;
501 501 (void) fprintf(stderr,
502 502 "usage: %s [-C] [--versions] --primary <compiler> "
503 503 "[--shadow <compiler>]... -- cflags...\n",
504 504 __progname);
505 505 (void) fprintf(stderr, "compilers take the form: name,path,style\n"
506 506 " - name: a unique name usable in flag specifiers\n"
507 507 " - path: path to the compiler binary\n"
508 508 " - style: the style of flags expected: either sun or gnu\n");
509 509 exit(2);
510 510 }
511 511
512 512 static int
513 513 xlate_xtb(struct aelist *h, const char *xarg)
514 514 {
515 515 int i, j;
516 516
517 517 for (i = 0; i < xtbl_size; i++) {
518 518 if (strcmp(xtbl[i].x_arg, xarg) == 0)
519 519 break;
520 520 }
521 521
522 522 /*
523 523 * At the end of the table and so no matching "arg" entry
524 524 * found and so this must be a bad -xarch= flag.
525 525 */
526 526 if (i == xtbl_size)
527 527 error(xarg);
528 528
529 529 for (j = 0; j < TRANS_ENTRY; j++) {
530 530 if (xtbl[i].x_trans[j] != NULL)
531 531 newae(h, xtbl[i].x_trans[j]);
532 532 else
533 533 break;
534 534 }
535 535 return (xtbl[i].x_flags);
536 536
537 537 }
538 538
539 539 static void
540 540 xlate(struct aelist *h, const char *xarg, const char **table)
541 541 {
542 542 while (*table != NULL && strcmp(xarg, *table) != 0) {
543 543 while (*table != NULL)
544 544 table++;
545 545 table++;
546 546 }
547 547
548 548 if (*table == NULL)
549 549 error(xarg);
550 550
551 551 table++;
552 552
553 553 while (*table != NULL) {
554 554 newae(h, *table);
555 555 table++;
556 556 }
557 557 }
558 558
559 559 /*
560 560 * The compiler wants the output file to end in appropriate extension. If
561 561 * we're generating a name from whole cloth (path == NULL), we assume that
562 562 * extension to be .o, otherwise we match the extension of the caller.
563 563 */
564 564 static char *
565 565 discard_file_name(cw_ictx_t *ctx, const char *path)
566 566 {
567 567 char *ret, *ext;
568 568 char tmpl[] = "cwXXXXXX";
569 569
570 570 if (path == NULL) {
571 571 ext = ".o";
572 572 } else {
573 573 ext = strrchr(path, '.');
574 574 }
575 575
576 576 /*
577 577 * We need absolute control over where the temporary file goes, since
578 578 * we rely on it for cleanup so tempnam(3C) and tmpnam(3C) are
579 579 * inappropriate (they use TMPDIR, preferentially).
580 580 *
581 581 * mkstemp(3C) doesn't actually help us, since the temporary file
582 582 * isn't used by us, only its name.
583 583 */
584 584 if (mktemp(tmpl) == NULL)
585 585 nomem();
586 586
587 587 (void) asprintf(&ret, "%s/%s%s", ctx->i_tmpdir, tmpl,
588 588 (ext != NULL) ? ext : "");
589 589
590 590 if (ret == NULL)
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590 lines elided |
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591 591 nomem();
592 592
593 593 return (ret);
594 594 }
595 595
596 596 static boolean_t
597 597 is_source_file(const char *path)
598 598 {
599 599 char *ext = strrchr(path, '.');
600 600
601 - if ((ext == NULL) || ((ext + 1) == '\0'))
601 + if ((ext == NULL) || (*(ext + 1) == '\0'))
602 602 return (B_FALSE);
603 603
604 604 ext += 1;
605 605
606 606 if ((strcasecmp(ext, "c") == 0) ||
607 607 (strcmp(ext, "cc") == 0) ||
608 608 (strcmp(ext, "i") == 0) ||
609 609 (strcasecmp(ext, "s") == 0) ||
610 610 (strcmp(ext, "cpp") == 0)) {
611 611 return (B_TRUE);
612 612 }
613 613
614 614 return (B_FALSE);
615 615 }
616 616
617 617
618 618 static void
619 619 do_gcc(cw_ictx_t *ctx)
620 620 {
621 621 int c;
622 622 int nolibc = 0;
623 623 int in_output = 0, seen_o = 0, c_files = 0;
624 624 cw_op_t op = CW_O_LINK;
625 625 char *model = NULL;
626 626 char *nameflag;
627 627 int mflag = 0;
628 628
629 629 if (ctx->i_flags & CW_F_PROG) {
630 630 newae(ctx->i_ae, "--version");
631 631 return;
632 632 }
633 633
634 634 newae(ctx->i_ae, "-fident");
635 635 newae(ctx->i_ae, "-finline");
636 636 newae(ctx->i_ae, "-fno-inline-functions");
637 637 newae(ctx->i_ae, "-fno-builtin");
638 638 newae(ctx->i_ae, "-fno-asm");
639 639 newae(ctx->i_ae, "-fdiagnostics-show-option");
640 640 newae(ctx->i_ae, "-nodefaultlibs");
641 641
642 642 #if defined(__sparc)
643 643 /*
644 644 * The SPARC ldd and std instructions require 8-byte alignment of
645 645 * their address operand. gcc correctly uses them only when the
646 646 * ABI requires 8-byte alignment; unfortunately we have a number of
647 647 * pieces of buggy code that doesn't conform to the ABI. This
648 648 * flag makes gcc work more like Studio with -xmemalign=4.
649 649 */
650 650 newae(ctx->i_ae, "-mno-integer-ldd-std");
651 651 #endif
652 652
653 653 /*
654 654 * This is needed because 'u' is defined
655 655 * under a conditional on 'sun'. Should
656 656 * probably just remove the conditional,
657 657 * or make it be dependent on '__sun'.
658 658 *
659 659 * -Dunix is also missing in enhanced ANSI mode
660 660 */
661 661 newae(ctx->i_ae, "-D__sun");
662 662
663 663 if (asprintf(&nameflag, "-_%s=", ctx->i_compiler->c_name) == -1)
664 664 nomem();
665 665
666 666 /*
667 667 * Walk the argument list, translating as we go ..
668 668 */
669 669 while (--ctx->i_oldargc > 0) {
670 670 char *arg = *++ctx->i_oldargv;
671 671 size_t arglen = strlen(arg);
672 672
673 673 if (*arg == '-') {
674 674 arglen--;
675 675 } else {
676 676 /*
677 677 * Discard inline files that gcc doesn't grok
678 678 */
679 679 if (!in_output && arglen > 3 &&
680 680 strcmp(arg + arglen - 3, ".il") == 0)
681 681 continue;
682 682
683 683 if (!in_output && is_source_file(arg))
684 684 c_files++;
685 685
686 686 /*
687 687 * Otherwise, filenames and partial arguments
688 688 * are passed through for gcc to chew on. However,
689 689 * output is always discarded for the secondary
690 690 * compiler.
691 691 */
692 692 if ((ctx->i_flags & CW_F_SHADOW) && in_output) {
693 693 newae(ctx->i_ae, discard_file_name(ctx, arg));
694 694 } else {
695 695 newae(ctx->i_ae, arg);
696 696 }
697 697 in_output = 0;
698 698 continue;
699 699 }
700 700
701 701 if (ctx->i_flags & CW_F_CXX) {
702 702 if (strncmp(arg, "-_g++=", 6) == 0) {
703 703 newae(ctx->i_ae, strchr(arg, '=') + 1);
704 704 continue;
705 705 }
706 706 if (strncmp(arg, "-compat=", 8) == 0) {
707 707 /* discard -compat=4 and -compat=5 */
708 708 continue;
709 709 }
710 710 if (strcmp(arg, "-Qoption") == 0) {
711 711 /* discard -Qoption and its two arguments */
712 712 if (ctx->i_oldargc < 3)
713 713 error(arg);
714 714 ctx->i_oldargc -= 2;
715 715 ctx->i_oldargv += 2;
716 716 continue;
717 717 }
718 718 if (strcmp(arg, "-xwe") == 0) {
719 719 /* turn warnings into errors */
720 720 newae(ctx->i_ae, "-Werror");
721 721 continue;
722 722 }
723 723 if (strcmp(arg, "-norunpath") == 0) {
724 724 /* gcc has no corresponding option */
725 725 continue;
726 726 }
727 727 if (strcmp(arg, "-nolib") == 0) {
728 728 /* -nodefaultlibs is on by default */
729 729 nolibc = 1;
730 730 continue;
731 731 }
732 732 #if defined(__sparc)
733 733 if (strcmp(arg, "-cg92") == 0) {
734 734 mflag |= xlate_xtb(ctx->i_ae, "v8");
735 735 xlate(ctx->i_ae, "super", xchip_tbl);
736 736 continue;
737 737 }
738 738 #endif /* __sparc */
739 739 }
740 740
741 741 switch ((c = arg[1])) {
742 742 case '_':
743 743 if ((strncmp(arg, nameflag, strlen(nameflag)) == 0) ||
744 744 (strncmp(arg, "-_gcc=", 6) == 0) ||
745 745 (strncmp(arg, "-_gnu=", 6) == 0)) {
746 746 newae(ctx->i_ae, strchr(arg, '=') + 1);
747 747 }
748 748 break;
749 749 case '#':
750 750 if (arglen == 1) {
751 751 newae(ctx->i_ae, "-v");
752 752 break;
753 753 }
754 754 error(arg);
755 755 break;
756 756 case 'f':
757 757 if ((strcmp(arg, "-fpic") == 0) ||
758 758 (strcmp(arg, "-fPIC") == 0)) {
759 759 newae(ctx->i_ae, arg);
760 760 break;
761 761 }
762 762 error(arg);
763 763 break;
764 764 case 'E':
765 765 if (arglen == 1) {
766 766 newae(ctx->i_ae, "-xc");
767 767 newae(ctx->i_ae, arg);
768 768 op = CW_O_PREPROCESS;
769 769 nolibc = 1;
770 770 break;
771 771 }
772 772 error(arg);
773 773 break;
774 774 case 'c':
775 775 case 'S':
776 776 if (arglen == 1) {
777 777 op = CW_O_COMPILE;
778 778 nolibc = 1;
779 779 }
780 780 /* FALLTHROUGH */
781 781 case 'C':
782 782 case 'H':
783 783 case 'p':
784 784 if (arglen == 1) {
785 785 newae(ctx->i_ae, arg);
786 786 break;
787 787 }
788 788 error(arg);
789 789 break;
790 790 case 'A':
791 791 case 'g':
792 792 case 'h':
793 793 case 'I':
794 794 case 'i':
795 795 case 'L':
796 796 case 'l':
797 797 case 'R':
798 798 case 'U':
799 799 case 'u':
800 800 case 'w':
801 801 newae(ctx->i_ae, arg);
802 802 break;
803 803 case 'o':
804 804 seen_o = 1;
805 805 if (arglen == 1) {
806 806 in_output = 1;
807 807 newae(ctx->i_ae, arg);
808 808 } else if (ctx->i_flags & CW_F_SHADOW) {
809 809 newae(ctx->i_ae, "-o");
810 810 newae(ctx->i_ae, discard_file_name(ctx, arg));
811 811 } else {
812 812 newae(ctx->i_ae, arg);
813 813 }
814 814 break;
815 815 case 'D':
816 816 newae(ctx->i_ae, arg);
817 817 /*
818 818 * XXX Clearly a hack ... do we need _KADB too?
819 819 */
820 820 if (strcmp(arg, "-D_KERNEL") == 0 ||
821 821 strcmp(arg, "-D_BOOT") == 0)
822 822 newae(ctx->i_ae, "-ffreestanding");
823 823 break;
824 824 case 'd':
825 825 if (arglen == 2) {
826 826 if (strcmp(arg, "-dy") == 0) {
827 827 newae(ctx->i_ae, "-Wl,-dy");
828 828 break;
829 829 }
830 830 if (strcmp(arg, "-dn") == 0) {
831 831 newae(ctx->i_ae, "-Wl,-dn");
832 832 break;
833 833 }
834 834 }
835 835 if (strcmp(arg, "-dalign") == 0) {
836 836 /*
837 837 * -dalign forces alignment in some cases;
838 838 * gcc does not need any flag to do this.
839 839 */
840 840 break;
841 841 }
842 842 error(arg);
843 843 break;
844 844 case 'e':
845 845 if (strcmp(arg,
846 846 "-erroff=E_EMPTY_TRANSLATION_UNIT") == 0) {
847 847 /*
848 848 * Accept but ignore this -- gcc doesn't
849 849 * seem to complain about empty translation
850 850 * units
851 851 */
852 852 break;
853 853 }
854 854 /* XX64 -- ignore all -erroff= options, for now */
855 855 if (strncmp(arg, "-erroff=", 8) == 0)
856 856 break;
857 857 if (strcmp(arg, "-errtags=yes") == 0) {
858 858 warnings(ctx->i_ae);
859 859 break;
860 860 }
861 861 if (strcmp(arg, "-errwarn=%all") == 0) {
862 862 newae(ctx->i_ae, "-Werror");
863 863 break;
864 864 }
865 865 error(arg);
866 866 break;
867 867 case 'G':
868 868 newae(ctx->i_ae, "-shared");
869 869 nolibc = 1;
870 870 break;
871 871 case 'k':
872 872 if (strcmp(arg, "-keeptmp") == 0) {
873 873 newae(ctx->i_ae, "-save-temps");
874 874 break;
875 875 }
876 876 error(arg);
877 877 break;
878 878 case 'm':
879 879 if (strcmp(arg, "-mt") == 0) {
880 880 newae(ctx->i_ae, "-D_REENTRANT");
881 881 break;
882 882 }
883 883 if (strcmp(arg, "-m64") == 0) {
884 884 newae(ctx->i_ae, "-m64");
885 885 #if defined(__x86)
886 886 newae(ctx->i_ae, "-mtune=opteron");
887 887 #endif
888 888 mflag |= M64;
889 889 break;
890 890 }
891 891 if (strcmp(arg, "-m32") == 0) {
892 892 newae(ctx->i_ae, "-m32");
893 893 mflag |= M32;
894 894 break;
895 895 }
896 896 error(arg);
897 897 break;
898 898 case 'B': /* linker options */
899 899 case 'M':
900 900 case 'z':
901 901 {
902 902 char *opt;
903 903 size_t len;
904 904 char *s;
905 905
906 906 if (arglen == 1) {
907 907 opt = *++ctx->i_oldargv;
908 908 if (opt == NULL || *opt == '\0')
909 909 error(arg);
910 910 ctx->i_oldargc--;
911 911 } else {
912 912 opt = arg + 2;
913 913 }
914 914 len = strlen(opt) + 7;
915 915 if ((s = malloc(len)) == NULL)
916 916 nomem();
917 917 (void) snprintf(s, len, "-Wl,-%c%s", c, opt);
918 918 newae(ctx->i_ae, s);
919 919 free(s);
920 920 }
921 921 break;
922 922 case 'O':
923 923 if (arglen == 1) {
924 924 newae(ctx->i_ae, "-O");
925 925 break;
926 926 }
927 927 error(arg);
928 928 break;
929 929 case 'P':
930 930 /*
931 931 * We could do '-E -o filename.i', but that's hard,
932 932 * and we don't need it for the case that's triggering
933 933 * this addition. We'll require the user to specify
934 934 * -o in the Makefile. If they don't they'll find out
935 935 * in a hurry.
936 936 */
937 937 newae(ctx->i_ae, "-E");
938 938 op = CW_O_PREPROCESS;
939 939 nolibc = 1;
940 940 break;
941 941 case 's':
942 942 if (arglen == 1) {
943 943 newae(ctx->i_ae, "-Wl,-s");
944 944 break;
945 945 }
946 946 error(arg);
947 947 break;
948 948 case 't':
949 949 if (arglen == 1) {
950 950 newae(ctx->i_ae, "-Wl,-t");
951 951 break;
952 952 }
953 953 error(arg);
954 954 break;
955 955 case 'V':
956 956 if (arglen == 1) {
957 957 ctx->i_flags &= ~CW_F_ECHO;
958 958 newae(ctx->i_ae, "--version");
959 959 break;
960 960 }
961 961 error(arg);
962 962 break;
963 963 case 'v':
964 964 if (arglen == 1) {
965 965 warnings(ctx->i_ae);
966 966 break;
967 967 }
968 968 error(arg);
969 969 break;
970 970 case 'W':
971 971 if (strncmp(arg, "-Wp,-xc99", 9) == 0) {
972 972 /*
973 973 * gcc's preprocessor will accept c99
974 974 * regardless, so accept and ignore.
975 975 */
976 976 break;
977 977 }
978 978 if (strncmp(arg, "-Wa,", 4) == 0 ||
979 979 strncmp(arg, "-Wp,", 4) == 0 ||
980 980 strncmp(arg, "-Wl,", 4) == 0) {
981 981 newae(ctx->i_ae, arg);
982 982 break;
983 983 }
984 984 if (strcmp(arg, "-W0,-noglobal") == 0 ||
985 985 strcmp(arg, "-W0,-xglobalstatic") == 0) {
986 986 /*
987 987 * gcc doesn't prefix local symbols
988 988 * in debug mode, so this is not needed.
989 989 */
990 990 break;
991 991 }
992 992 if (strcmp(arg, "-W0,-Lt") == 0) {
993 993 /*
994 994 * Generate tests at the top of loops.
995 995 * There is no direct gcc equivalent, ignore.
996 996 */
997 997 break;
998 998 }
999 999 if (strcmp(arg, "-W0,-xdbggen=no%usedonly") == 0) {
1000 1000 newae(ctx->i_ae,
1001 1001 "-fno-eliminate-unused-debug-symbols");
1002 1002 newae(ctx->i_ae,
1003 1003 "-fno-eliminate-unused-debug-types");
1004 1004 break;
1005 1005 }
1006 1006 if (strcmp(arg, "-W2,-xwrap_int") == 0) {
1007 1007 /*
1008 1008 * Use the legacy behaviour (pre-SS11)
1009 1009 * for integer wrapping.
1010 1010 * gcc does not need this.
1011 1011 */
1012 1012 break;
1013 1013 }
1014 1014 if (strcmp(arg, "-Wd,-xsafe=unboundsym") == 0) {
1015 1015 /*
1016 1016 * Prevents optimizing away checks for
1017 1017 * unbound weak symbol addresses. gcc does
1018 1018 * not do this, so it's not needed.
1019 1019 */
1020 1020 break;
1021 1021 }
1022 1022 if (strncmp(arg, "-Wc,-xcode=", 11) == 0) {
1023 1023 xlate(ctx->i_ae, arg + 11, xcode_tbl);
1024 1024 break;
1025 1025 }
1026 1026 if (strncmp(arg, "-Wc,-Qiselect", 13) == 0) {
1027 1027 /*
1028 1028 * Prevents insertion of register symbols.
1029 1029 * gcc doesn't do this, so ignore it.
1030 1030 */
1031 1031 break;
1032 1032 }
1033 1033 if (strcmp(arg, "-Wc,-Qassembler-ounrefsym=0") == 0) {
1034 1034 /*
1035 1035 * Prevents optimizing away of static variables.
1036 1036 * gcc does not do this, so it's not needed.
1037 1037 */
1038 1038 break;
1039 1039 }
1040 1040 #if defined(__x86)
1041 1041 if (strcmp(arg, "-Wu,-save_args") == 0) {
1042 1042 newae(ctx->i_ae, "-msave-args");
1043 1043 break;
1044 1044 }
1045 1045 #endif /* __x86 */
1046 1046 error(arg);
1047 1047 break;
1048 1048 case 'X':
1049 1049 if (strcmp(arg, "-Xa") == 0 ||
1050 1050 strcmp(arg, "-Xt") == 0) {
1051 1051 break;
1052 1052 }
1053 1053 if (strcmp(arg, "-Xs") == 0) {
1054 1054 Xsmode(ctx->i_ae);
1055 1055 break;
1056 1056 }
1057 1057 error(arg);
1058 1058 break;
1059 1059 case 'x':
1060 1060 if (arglen == 1)
1061 1061 error(arg);
1062 1062 switch (arg[2]) {
1063 1063 case 'a':
1064 1064 if (strncmp(arg, "-xarch=", 7) == 0) {
1065 1065 mflag |= xlate_xtb(ctx->i_ae, arg + 7);
1066 1066 break;
1067 1067 }
1068 1068 error(arg);
1069 1069 break;
1070 1070 case 'b':
1071 1071 if (strncmp(arg, "-xbuiltin=", 10) == 0) {
1072 1072 if (strcmp(arg + 10, "%all"))
1073 1073 newae(ctx->i_ae, "-fbuiltin");
1074 1074 break;
1075 1075 }
1076 1076 error(arg);
1077 1077 break;
1078 1078 case 'C':
1079 1079 /* Accept C++ style comments -- ignore */
1080 1080 if (strcmp(arg, "-xCC") == 0)
1081 1081 break;
1082 1082 error(arg);
1083 1083 break;
1084 1084 case 'c':
1085 1085 if (strncmp(arg, "-xc99=%all", 10) == 0) {
1086 1086 newae(ctx->i_ae, "-std=gnu99");
1087 1087 break;
1088 1088 }
1089 1089 if (strncmp(arg, "-xc99=%none", 11) == 0) {
1090 1090 newae(ctx->i_ae, "-std=gnu89");
1091 1091 break;
1092 1092 }
1093 1093 if (strncmp(arg, "-xchip=", 7) == 0) {
1094 1094 xlate(ctx->i_ae, arg + 7, xchip_tbl);
1095 1095 break;
1096 1096 }
1097 1097 if (strncmp(arg, "-xcode=", 7) == 0) {
1098 1098 xlate(ctx->i_ae, arg + 7, xcode_tbl);
1099 1099 break;
1100 1100 }
1101 1101 if (strncmp(arg, "-xcrossfile", 11) == 0)
1102 1102 break;
1103 1103 error(arg);
1104 1104 break;
1105 1105 case 'F':
1106 1106 /*
1107 1107 * Compile for mapfile reordering, or unused
1108 1108 * section elimination, syntax can be -xF or
1109 1109 * more complex, like -xF=%all -- ignore.
1110 1110 */
1111 1111 if (strncmp(arg, "-xF", 3) == 0)
1112 1112 break;
1113 1113 error(arg);
1114 1114 break;
1115 1115 case 'i':
1116 1116 if (strncmp(arg, "-xinline", 8) == 0)
1117 1117 /* No inlining; ignore */
1118 1118 break;
1119 1119 if (strcmp(arg, "-xildon") == 0 ||
1120 1120 strcmp(arg, "-xildoff") == 0)
1121 1121 /* No incremental linking; ignore */
1122 1122 break;
1123 1123 error(arg);
1124 1124 break;
1125 1125 #if defined(__x86)
1126 1126 case 'm':
1127 1127 if (strcmp(arg, "-xmodel=kernel") == 0) {
1128 1128 newae(ctx->i_ae, "-ffreestanding");
1129 1129 newae(ctx->i_ae, "-mno-red-zone");
1130 1130 model = "-mcmodel=kernel";
1131 1131 nolibc = 1;
1132 1132 break;
1133 1133 }
1134 1134 error(arg);
1135 1135 break;
1136 1136 #endif /* __x86 */
1137 1137 case 'O':
1138 1138 if (strncmp(arg, "-xO", 3) == 0) {
1139 1139 size_t len = strlen(arg);
1140 1140 char *s = NULL;
1141 1141 int c = *(arg + 3);
1142 1142 int level;
1143 1143
1144 1144 if (len != 4 || !isdigit(c))
1145 1145 error(arg);
1146 1146
1147 1147 level = atoi(arg + 3);
1148 1148 if (level > 5)
1149 1149 error(arg);
1150 1150 if (level >= 2) {
1151 1151 /*
1152 1152 * For gcc-3.4.x at -O2 we
1153 1153 * need to disable optimizations
1154 1154 * that break ON.
1155 1155 */
1156 1156 optim_disable(ctx->i_ae, level);
1157 1157 /*
1158 1158 * limit -xO3 to -O2 as well.
1159 1159 */
1160 1160 level = 2;
1161 1161 }
1162 1162 if (asprintf(&s, "-O%d", level) == -1)
1163 1163 nomem();
1164 1164 newae(ctx->i_ae, s);
1165 1165 free(s);
1166 1166 break;
1167 1167 }
1168 1168 error(arg);
1169 1169 break;
1170 1170 case 'r':
1171 1171 if (strncmp(arg, "-xregs=", 7) == 0) {
1172 1172 xlate(ctx->i_ae, arg + 7, xregs_tbl);
1173 1173 break;
1174 1174 }
1175 1175 error(arg);
1176 1176 break;
1177 1177 case 's':
1178 1178 if (strcmp(arg, "-xs") == 0 ||
1179 1179 strcmp(arg, "-xspace") == 0 ||
1180 1180 strcmp(arg, "-xstrconst") == 0)
1181 1181 break;
1182 1182 error(arg);
1183 1183 break;
1184 1184 case 't':
1185 1185 if (strncmp(arg, "-xtarget=", 9) == 0) {
1186 1186 xlate(ctx->i_ae, arg + 9, xtarget_tbl);
1187 1187 break;
1188 1188 }
1189 1189 error(arg);
1190 1190 break;
1191 1191 case 'e':
1192 1192 case 'h':
1193 1193 case 'l':
1194 1194 default:
1195 1195 error(arg);
1196 1196 break;
1197 1197 }
1198 1198 break;
1199 1199 case 'Y':
1200 1200 if (arglen == 1) {
1201 1201 if ((arg = *++ctx->i_oldargv) == NULL ||
1202 1202 *arg == '\0')
1203 1203 error("-Y");
1204 1204 ctx->i_oldargc--;
1205 1205 arglen = strlen(arg + 1);
1206 1206 } else {
1207 1207 arg += 2;
1208 1208 }
1209 1209 /* Just ignore -YS,... for now */
1210 1210 if (strncmp(arg, "S,", 2) == 0)
1211 1211 break;
1212 1212 if (strncmp(arg, "l,", 2) == 0) {
1213 1213 char *s = strdup(arg);
1214 1214 s[0] = '-';
1215 1215 s[1] = 'B';
1216 1216 newae(ctx->i_ae, s);
1217 1217 free(s);
1218 1218 break;
1219 1219 }
1220 1220 if (strncmp(arg, "I,", 2) == 0) {
1221 1221 char *s = strdup(arg);
1222 1222 s[0] = '-';
1223 1223 s[1] = 'I';
1224 1224 newae(ctx->i_ae, "-nostdinc");
1225 1225 newae(ctx->i_ae, s);
1226 1226 free(s);
1227 1227 break;
1228 1228 }
1229 1229 error(arg);
1230 1230 break;
1231 1231 case 'Q':
1232 1232 /*
1233 1233 * We could map -Qy into -Wl,-Qy etc.
1234 1234 */
1235 1235 default:
1236 1236 error(arg);
1237 1237 break;
1238 1238 }
1239 1239 }
1240 1240
1241 1241 free(nameflag);
1242 1242
1243 1243 /*
1244 1244 * When compiling multiple source files in a single invocation some
1245 1245 * compilers output objects into the current directory with
1246 1246 * predictable and conventional names.
1247 1247 *
1248 1248 * We prevent any attempt to compile multiple files at once so that
1249 1249 * any such objects created by a shadow can't escape into a later
1250 1250 * link-edit.
1251 1251 */
1252 1252 if (c_files > 1 && op != CW_O_PREPROCESS) {
1253 1253 errx(2, "multiple source files are "
1254 1254 "allowed only with -E or -P");
1255 1255 }
1256 1256
1257 1257 /*
1258 1258 * Make sure that we do not have any unintended interactions between
1259 1259 * the xarch options passed in and the version of the Studio compiler
1260 1260 * used.
1261 1261 */
1262 1262 if ((mflag & (SS11|SS12)) == (SS11|SS12)) {
1263 1263 errx(2,
1264 1264 "Conflicting \"-xarch=\" flags (both Studio 11 and 12)\n");
1265 1265 }
1266 1266
1267 1267 switch (mflag) {
1268 1268 case 0:
1269 1269 /* FALLTHROUGH */
1270 1270 case M32:
1271 1271 #if defined(__sparc)
1272 1272 /*
1273 1273 * Only -m32 is defined and so put in the missing xarch
1274 1274 * translation.
1275 1275 */
1276 1276 newae(ctx->i_ae, "-mcpu=v8");
1277 1277 newae(ctx->i_ae, "-mno-v8plus");
1278 1278 #endif
1279 1279 break;
1280 1280 case M64:
1281 1281 #if defined(__sparc)
1282 1282 /*
1283 1283 * Only -m64 is defined and so put in the missing xarch
1284 1284 * translation.
1285 1285 */
1286 1286 newae(ctx->i_ae, "-mcpu=v9");
1287 1287 #endif
1288 1288 break;
1289 1289 case SS12:
1290 1290 #if defined(__sparc)
1291 1291 /* no -m32/-m64 flag used - this is an error for sparc builds */
1292 1292 (void) fprintf(stderr, "No -m32/-m64 flag defined\n");
1293 1293 exit(2);
1294 1294 #endif
1295 1295 break;
1296 1296 case SS11:
1297 1297 /* FALLTHROUGH */
1298 1298 case (SS11|M32):
1299 1299 case (SS11|M64):
1300 1300 break;
1301 1301 case (SS12|M32):
1302 1302 #if defined(__sparc)
1303 1303 /*
1304 1304 * Need to add in further 32 bit options because with SS12
1305 1305 * the xarch=sparcvis option can be applied to 32 or 64
1306 1306 * bit, and so the translatation table (xtbl) cannot handle
1307 1307 * that.
1308 1308 */
1309 1309 newae(ctx->i_ae, "-mv8plus");
1310 1310 #endif
1311 1311 break;
1312 1312 case (SS12|M64):
1313 1313 break;
1314 1314 default:
1315 1315 (void) fprintf(stderr,
1316 1316 "Incompatible -xarch= and/or -m32/-m64 options used.\n");
1317 1317 exit(2);
1318 1318 }
1319 1319
1320 1320 if (ctx->i_flags & CW_F_SHADOW) {
1321 1321 if (op == CW_O_PREPROCESS)
1322 1322 exit(0);
1323 1323 else if (op == CW_O_LINK && c_files == 0)
1324 1324 exit(0);
1325 1325 }
1326 1326
1327 1327 if (model != NULL)
1328 1328 newae(ctx->i_ae, model);
1329 1329 if (!nolibc)
1330 1330 newae(ctx->i_ae, "-lc");
1331 1331 if (!seen_o && (ctx->i_flags & CW_F_SHADOW)) {
1332 1332 newae(ctx->i_ae, "-o");
1333 1333 newae(ctx->i_ae, discard_file_name(ctx, NULL));
1334 1334 }
1335 1335 }
1336 1336
1337 1337 static void
1338 1338 do_smatch(cw_ictx_t *ctx)
1339 1339 {
1340 1340 if (ctx->i_flags & CW_F_PROG) {
1341 1341 newae(ctx->i_ae, "--version");
1342 1342 return;
1343 1343 }
1344 1344
1345 1345 /*
1346 1346 * Some sources shouldn't run smatch at all.
1347 1347 */
1348 1348 for (int i = 0; i < ctx->i_oldargc; i++) {
1349 1349 char *arg = ctx->i_oldargv[i];
1350 1350
1351 1351 if (strcmp(arg, "-_smatch=off") == 0) {
1352 1352 ctx->i_flags &= ~ (CW_F_EXEC | CW_F_ECHO);
1353 1353 return;
1354 1354 }
1355 1355 }
1356 1356
1357 1357 /*
1358 1358 * smatch can handle gcc's options.
1359 1359 */
1360 1360 do_gcc(ctx);
1361 1361 }
1362 1362
1363 1363 static void
1364 1364 do_cc(cw_ictx_t *ctx)
1365 1365 {
1366 1366 int in_output = 0, seen_o = 0, c_files = 0;
1367 1367 cw_op_t op = CW_O_LINK;
1368 1368 char *nameflag;
1369 1369
1370 1370 if (ctx->i_flags & CW_F_PROG) {
1371 1371 newae(ctx->i_ae, "-V");
1372 1372 return;
1373 1373 }
1374 1374
1375 1375 if (asprintf(&nameflag, "-_%s=", ctx->i_compiler->c_name) == -1)
1376 1376 nomem();
1377 1377
1378 1378 while (--ctx->i_oldargc > 0) {
1379 1379 char *arg = *++ctx->i_oldargv;
1380 1380
1381 1381 if (strncmp(arg, "-_CC=", 5) == 0) {
1382 1382 newae(ctx->i_ae, strchr(arg, '=') + 1);
1383 1383 continue;
1384 1384 }
1385 1385
1386 1386 if (*arg != '-') {
1387 1387 if (!in_output && is_source_file(arg))
1388 1388 c_files++;
1389 1389
1390 1390 if (in_output == 0 || !(ctx->i_flags & CW_F_SHADOW)) {
1391 1391 newae(ctx->i_ae, arg);
1392 1392 } else {
1393 1393 in_output = 0;
1394 1394 newae(ctx->i_ae, discard_file_name(ctx, arg));
1395 1395 }
1396 1396 continue;
1397 1397 }
1398 1398 switch (*(arg + 1)) {
1399 1399 case '_':
1400 1400 if ((strncmp(arg, nameflag, strlen(nameflag)) == 0) ||
1401 1401 (strncmp(arg, "-_cc=", 5) == 0) ||
1402 1402 (strncmp(arg, "-_sun=", 6) == 0)) {
1403 1403 newae(ctx->i_ae, strchr(arg, '=') + 1);
1404 1404 }
1405 1405 break;
1406 1406
1407 1407 case 'V':
1408 1408 ctx->i_flags &= ~CW_F_ECHO;
1409 1409 newae(ctx->i_ae, arg);
1410 1410 break;
1411 1411 case 'o':
1412 1412 seen_o = 1;
1413 1413 if (strlen(arg) == 2) {
1414 1414 in_output = 1;
1415 1415 newae(ctx->i_ae, arg);
1416 1416 } else if (ctx->i_flags & CW_F_SHADOW) {
1417 1417 newae(ctx->i_ae, "-o");
1418 1418 newae(ctx->i_ae, discard_file_name(ctx, arg));
1419 1419 } else {
1420 1420 newae(ctx->i_ae, arg);
1421 1421 }
1422 1422 break;
1423 1423 case 'c':
1424 1424 case 'S':
1425 1425 if (strlen(arg) == 2)
1426 1426 op = CW_O_COMPILE;
1427 1427 newae(ctx->i_ae, arg);
1428 1428 break;
1429 1429 case 'E':
1430 1430 case 'P':
1431 1431 if (strlen(arg) == 2)
1432 1432 op = CW_O_PREPROCESS;
1433 1433 /*FALLTHROUGH*/
1434 1434 default:
1435 1435 newae(ctx->i_ae, arg);
1436 1436 }
1437 1437 }
1438 1438
1439 1439 free(nameflag);
1440 1440
1441 1441 /* See the comment on this same code in do_gcc() */
1442 1442 if (c_files > 1 && op != CW_O_PREPROCESS) {
1443 1443 errx(2, "multiple source files are "
1444 1444 "allowed only with -E or -P");
1445 1445 }
1446 1446
1447 1447 if (ctx->i_flags & CW_F_SHADOW) {
1448 1448 if (op == CW_O_PREPROCESS)
1449 1449 exit(0);
1450 1450 else if (op == CW_O_LINK && c_files == 0)
1451 1451 exit(0);
1452 1452 }
1453 1453
1454 1454 if (!seen_o && (ctx->i_flags & CW_F_SHADOW)) {
1455 1455 newae(ctx->i_ae, "-o");
1456 1456 newae(ctx->i_ae, discard_file_name(ctx, NULL));
1457 1457 }
1458 1458 }
1459 1459
1460 1460 static void
1461 1461 prepctx(cw_ictx_t *ctx)
1462 1462 {
1463 1463 newae(ctx->i_ae, ctx->i_compiler->c_path);
1464 1464
1465 1465 if (ctx->i_flags & CW_F_PROG) {
1466 1466 (void) printf("%s: %s\n", (ctx->i_flags & CW_F_SHADOW) ?
1467 1467 "shadow" : "primary", ctx->i_compiler->c_path);
1468 1468 (void) fflush(stdout);
1469 1469 }
1470 1470
1471 1471 if (!(ctx->i_flags & CW_F_XLATE))
1472 1472 return;
1473 1473
1474 1474 switch (ctx->i_compiler->c_style) {
1475 1475 case SUN:
1476 1476 do_cc(ctx);
1477 1477 break;
1478 1478 case GNU:
1479 1479 do_gcc(ctx);
1480 1480 break;
1481 1481 case SMATCH:
1482 1482 do_smatch(ctx);
1483 1483 break;
1484 1484 }
1485 1485 }
1486 1486
1487 1487 static int
1488 1488 invoke(cw_ictx_t *ctx)
1489 1489 {
1490 1490 char **newargv;
1491 1491 int ac;
1492 1492 struct ae *a;
1493 1493
1494 1494 if ((newargv = calloc(sizeof (*newargv), ctx->i_ae->ael_argc + 1)) ==
1495 1495 NULL)
1496 1496 nomem();
1497 1497
1498 1498 if (ctx->i_flags & CW_F_ECHO)
1499 1499 (void) fprintf(stderr, "+ ");
1500 1500
1501 1501 for (ac = 0, a = ctx->i_ae->ael_head; a; a = a->ae_next, ac++) {
1502 1502 newargv[ac] = a->ae_arg;
1503 1503 if (ctx->i_flags & CW_F_ECHO)
1504 1504 (void) fprintf(stderr, "%s ", a->ae_arg);
1505 1505 if (a == ctx->i_ae->ael_tail)
1506 1506 break;
1507 1507 }
1508 1508
1509 1509 if (ctx->i_flags & CW_F_ECHO) {
1510 1510 (void) fprintf(stderr, "\n");
1511 1511 (void) fflush(stderr);
1512 1512 }
1513 1513
1514 1514 if (!(ctx->i_flags & CW_F_EXEC))
1515 1515 return (0);
1516 1516
1517 1517 /*
1518 1518 * We must fix up the environment here so that the dependency files are
1519 1519 * not trampled by the shadow compiler. Also take care of GCC
1520 1520 * environment variables that will throw off gcc. This assumes a primary
1521 1521 * gcc.
1522 1522 */
1523 1523 if ((ctx->i_flags & CW_F_SHADOW) &&
1524 1524 (unsetenv("SUNPRO_DEPENDENCIES") != 0 ||
1525 1525 unsetenv("DEPENDENCIES_OUTPUT") != 0 ||
1526 1526 unsetenv("GCC_ROOT") != 0)) {
1527 1527 (void) fprintf(stderr, "error: environment setup failed: %s\n",
1528 1528 strerror(errno));
1529 1529 return (-1);
1530 1530 }
1531 1531
1532 1532 (void) execv(newargv[0], newargv);
1533 1533 warn("couldn't run %s", newargv[0]);
1534 1534
1535 1535 return (-1);
1536 1536 }
1537 1537
1538 1538 static int
1539 1539 reap(cw_ictx_t *ctx)
1540 1540 {
1541 1541 int status, ret = 0;
1542 1542 char buf[1024];
1543 1543 struct stat s;
1544 1544
1545 1545 /*
1546 1546 * Only wait for one specific child.
1547 1547 */
1548 1548 if (ctx->i_pid <= 0)
1549 1549 return (-1);
1550 1550
1551 1551 do {
1552 1552 if (waitpid(ctx->i_pid, &status, 0) < 0) {
1553 1553 warn("cannot reap child");
1554 1554 return (-1);
1555 1555 }
1556 1556 if (status != 0) {
1557 1557 if (WIFSIGNALED(status)) {
1558 1558 ret = -WTERMSIG(status);
1559 1559 break;
1560 1560 } else if (WIFEXITED(status)) {
1561 1561 ret = WEXITSTATUS(status);
1562 1562 break;
1563 1563 }
1564 1564 }
1565 1565 } while (!WIFEXITED(status) && !WIFSIGNALED(status));
1566 1566
1567 1567 if (stat(ctx->i_stderr, &s) < 0) {
1568 1568 warn("stat failed on child cleanup");
1569 1569 return (-1);
1570 1570 }
1571 1571 if (s.st_size != 0) {
1572 1572 FILE *f;
1573 1573
1574 1574 if ((f = fopen(ctx->i_stderr, "r")) != NULL) {
1575 1575 while (fgets(buf, sizeof (buf), f))
1576 1576 (void) fprintf(stderr, "%s", buf);
1577 1577 (void) fflush(stderr);
1578 1578 (void) fclose(f);
1579 1579 }
1580 1580 }
1581 1581 (void) unlink(ctx->i_stderr);
1582 1582 free(ctx->i_stderr);
1583 1583
1584 1584 /*
1585 1585 * cc returns an error code when given -V; we want that to succeed.
1586 1586 */
1587 1587 if (ctx->i_flags & CW_F_PROG)
1588 1588 return (0);
1589 1589
1590 1590 return (ret);
1591 1591 }
1592 1592
1593 1593 static int
1594 1594 exec_ctx(cw_ictx_t *ctx, int block)
1595 1595 {
1596 1596 if ((ctx->i_stderr = tempnam(ctx->i_tmpdir, "cw")) == NULL) {
1597 1597 nomem();
1598 1598 return (-1);
1599 1599 }
1600 1600
1601 1601 if ((ctx->i_pid = fork()) == 0) {
1602 1602 int fd;
1603 1603
1604 1604 (void) fclose(stderr);
1605 1605 if ((fd = open(ctx->i_stderr, O_WRONLY | O_CREAT | O_EXCL,
1606 1606 0666)) < 0) {
1607 1607 err(1, "open failed for standard error");
1608 1608 }
1609 1609 if (dup2(fd, 2) < 0) {
1610 1610 err(1, "dup2 failed for standard error");
1611 1611 }
1612 1612 if (fd != 2)
1613 1613 (void) close(fd);
1614 1614 if (freopen("/dev/fd/2", "w", stderr) == NULL) {
1615 1615 err(1, "freopen failed for /dev/fd/2");
1616 1616 }
1617 1617
1618 1618 prepctx(ctx);
1619 1619 exit(invoke(ctx));
1620 1620 }
1621 1621
1622 1622 if (ctx->i_pid < 0) {
1623 1623 err(1, "fork failed");
1624 1624 }
1625 1625
1626 1626 if (block)
1627 1627 return (reap(ctx));
1628 1628
1629 1629 return (0);
1630 1630 }
1631 1631
1632 1632 static void
1633 1633 parse_compiler(const char *spec, cw_compiler_t *compiler)
1634 1634 {
1635 1635 char *tspec, *token;
1636 1636
1637 1637 if ((tspec = strdup(spec)) == NULL)
1638 1638 nomem();
1639 1639
1640 1640 if ((token = strsep(&tspec, ",")) == NULL)
1641 1641 errx(1, "Compiler is missing a name: %s", spec);
1642 1642 compiler->c_name = token;
1643 1643
1644 1644 if ((token = strsep(&tspec, ",")) == NULL)
1645 1645 errx(1, "Compiler is missing a path: %s", spec);
1646 1646 compiler->c_path = token;
1647 1647
1648 1648 if ((token = strsep(&tspec, ",")) == NULL)
1649 1649 errx(1, "Compiler is missing a style: %s", spec);
1650 1650
1651 1651 if ((strcasecmp(token, "gnu") == 0) ||
1652 1652 (strcasecmp(token, "gcc") == 0)) {
1653 1653 compiler->c_style = GNU;
1654 1654 } else if ((strcasecmp(token, "sun") == 0) ||
1655 1655 (strcasecmp(token, "cc") == 0)) {
1656 1656 compiler->c_style = SUN;
1657 1657 } else if ((strcasecmp(token, "smatch") == 0)) {
1658 1658 compiler->c_style = SMATCH;
1659 1659 } else {
1660 1660 errx(1, "unknown compiler style: %s", token);
1661 1661 }
1662 1662
1663 1663 if (tspec != NULL)
1664 1664 errx(1, "Excess tokens in compiler: %s", spec);
1665 1665 }
1666 1666
1667 1667 static void
1668 1668 cleanup(cw_ictx_t *ctx)
1669 1669 {
1670 1670 DIR *dirp;
1671 1671 struct dirent *dp;
1672 1672 char buf[MAXPATHLEN];
1673 1673
1674 1674 if ((dirp = opendir(ctx->i_tmpdir)) == NULL) {
1675 1675 if (errno != ENOENT) {
1676 1676 err(1, "couldn't open temp directory: %s",
1677 1677 ctx->i_tmpdir);
1678 1678 } else {
1679 1679 return;
1680 1680 }
1681 1681 }
1682 1682
1683 1683 errno = 0;
1684 1684 while ((dp = readdir(dirp)) != NULL) {
1685 1685 (void) snprintf(buf, MAXPATHLEN, "%s/%s", ctx->i_tmpdir,
1686 1686 dp->d_name);
1687 1687
1688 1688 if (strcmp(dp->d_name, ".") == 0 ||
1689 1689 strcmp(dp->d_name, "..") == 0) {
1690 1690 continue;
1691 1691 }
1692 1692
1693 1693 if (unlink(buf) == -1)
1694 1694 err(1, "failed to unlink temp file: %s", dp->d_name);
1695 1695 errno = 0;
1696 1696 }
1697 1697
1698 1698 if (errno != 0) {
1699 1699 err(1, "failed to read temporary directory: %s",
1700 1700 ctx->i_tmpdir);
1701 1701 }
1702 1702
1703 1703 (void) closedir(dirp);
1704 1704 if (rmdir(ctx->i_tmpdir) != 0) {
1705 1705 err(1, "failed to unlink temporary directory: %s",
1706 1706 ctx->i_tmpdir);
1707 1707 }
1708 1708 }
1709 1709
1710 1710 int
1711 1711 main(int argc, char **argv)
1712 1712 {
1713 1713 int ch;
1714 1714 cw_compiler_t primary = { NULL, NULL, 0 };
1715 1715 cw_compiler_t shadows[10];
1716 1716 int nshadows = 0;
1717 1717 int ret = 0;
1718 1718 boolean_t do_serial = B_FALSE;
1719 1719 boolean_t do_exec = B_FALSE;
1720 1720 boolean_t vflg = B_FALSE;
1721 1721 boolean_t Cflg = B_FALSE;
1722 1722 boolean_t cflg = B_FALSE;
1723 1723 boolean_t nflg = B_FALSE;
1724 1724 char *tmpdir;
1725 1725
1726 1726 cw_ictx_t *main_ctx;
1727 1727
1728 1728 static struct option longopts[] = {
1729 1729 { "compiler", no_argument, NULL, 'c' },
1730 1730 { "noecho", no_argument, NULL, 'n' },
1731 1731 { "primary", required_argument, NULL, 'p' },
1732 1732 { "shadow", required_argument, NULL, 's' },
1733 1733 { "versions", no_argument, NULL, 'v' },
1734 1734 { NULL, 0, NULL, 0 },
1735 1735 };
1736 1736
1737 1737
1738 1738 if ((main_ctx = newictx()) == NULL)
1739 1739 nomem();
1740 1740
1741 1741 while ((ch = getopt_long(argc, argv, "C", longopts, NULL)) != -1) {
1742 1742 switch (ch) {
1743 1743 case 'c':
1744 1744 cflg = B_TRUE;
1745 1745 break;
1746 1746 case 'C':
1747 1747 Cflg = B_TRUE;
1748 1748 break;
1749 1749 case 'n':
1750 1750 nflg = B_TRUE;
1751 1751 break;
1752 1752 case 'p':
1753 1753 if (primary.c_path != NULL) {
1754 1754 warnx("Only one primary compiler may "
1755 1755 "be specified");
1756 1756 usage();
1757 1757 }
1758 1758
1759 1759 parse_compiler(optarg, &primary);
1760 1760 break;
1761 1761 case 's':
1762 1762 if (nshadows >= 10)
1763 1763 errx(1, "May only use 10 shadows at "
1764 1764 "the moment");
1765 1765 parse_compiler(optarg, &shadows[nshadows]);
1766 1766 nshadows++;
1767 1767 break;
1768 1768 case 'v':
1769 1769 vflg = B_TRUE;
1770 1770 break;
1771 1771 default:
1772 1772 (void) fprintf(stderr, "Did you forget '--'?\n");
1773 1773 usage();
1774 1774 }
1775 1775 }
1776 1776
1777 1777 if (primary.c_path == NULL) {
1778 1778 warnx("A primary compiler must be specified");
1779 1779 usage();
1780 1780 }
1781 1781
1782 1782 do_serial = (getenv("CW_SHADOW_SERIAL") == NULL) ? B_FALSE : B_TRUE;
1783 1783 do_exec = (getenv("CW_NO_EXEC") == NULL) ? B_TRUE : B_FALSE;
1784 1784
1785 1785 /* Leave room for argv[0] */
1786 1786 argc -= (optind - 1);
1787 1787 argv += (optind - 1);
1788 1788
1789 1789 main_ctx->i_oldargc = argc;
1790 1790 main_ctx->i_oldargv = argv;
1791 1791 main_ctx->i_flags = CW_F_XLATE;
1792 1792 if (nflg == 0)
1793 1793 main_ctx->i_flags |= CW_F_ECHO;
1794 1794 if (do_exec)
1795 1795 main_ctx->i_flags |= CW_F_EXEC;
1796 1796 if (Cflg)
1797 1797 main_ctx->i_flags |= CW_F_CXX;
1798 1798 main_ctx->i_compiler = &primary;
1799 1799
1800 1800 if (cflg) {
1801 1801 (void) fputs(primary.c_path, stdout);
1802 1802 }
1803 1803
1804 1804 if (vflg) {
1805 1805 (void) printf("cw version %s\n", CW_VERSION);
1806 1806 (void) fflush(stdout);
1807 1807 main_ctx->i_flags &= ~CW_F_ECHO;
1808 1808 main_ctx->i_flags |= CW_F_PROG | CW_F_EXEC;
1809 1809 do_serial = 1;
1810 1810 }
1811 1811
1812 1812 tmpdir = getenv("TMPDIR");
1813 1813 if (tmpdir == NULL)
1814 1814 tmpdir = "/tmp";
1815 1815
1816 1816 if (asprintf(&main_ctx->i_tmpdir, "%s/cw.XXXXXX", tmpdir) == -1)
1817 1817 nomem();
1818 1818
1819 1819 if ((main_ctx->i_tmpdir = mkdtemp(main_ctx->i_tmpdir)) == NULL)
1820 1820 errx(1, "failed to create temporary directory");
1821 1821
1822 1822 ret |= exec_ctx(main_ctx, do_serial);
1823 1823
1824 1824 for (int i = 0; i < nshadows; i++) {
1825 1825 int r;
1826 1826 cw_ictx_t *shadow_ctx;
1827 1827
1828 1828 if ((shadow_ctx = newictx()) == NULL)
1829 1829 nomem();
1830 1830
1831 1831 (void) memcpy(shadow_ctx, main_ctx, sizeof (cw_ictx_t));
1832 1832
1833 1833 shadow_ctx->i_flags |= CW_F_SHADOW;
1834 1834 shadow_ctx->i_compiler = &shadows[i];
1835 1835
1836 1836 r = exec_ctx(shadow_ctx, do_serial);
1837 1837 if (r == 0) {
1838 1838 shadow_ctx->i_next = main_ctx->i_next;
1839 1839 main_ctx->i_next = shadow_ctx;
1840 1840 }
1841 1841 ret |= r;
1842 1842 }
1843 1843
1844 1844 if (!do_serial) {
1845 1845 cw_ictx_t *next = main_ctx;
1846 1846 while (next != NULL) {
1847 1847 cw_ictx_t *toreap = next;
1848 1848 next = next->i_next;
1849 1849 ret |= reap(toreap);
1850 1850 }
1851 1851 }
1852 1852
1853 1853 cleanup(main_ctx);
1854 1854 return (ret);
1855 1855 }
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