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9888 cw shouldn't use __unused
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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
31 31 /*
32 32 * Wrapper for the GNU C compiler to make it accept the Sun C compiler
33 33 * arguments where possible.
34 34 *
35 35 * Since the translation is inexact, this is something of a work-in-progress.
36 36 *
37 37 */
38 38
39 39 /* If you modify this file, you must increment CW_VERSION */
40 40 #define CW_VERSION "3.0"
41 41
42 42 /*
43 43 * -# Verbose mode
44 44 * -### Show compiler commands built by driver, no compilation
45 45 * -A<name[(tokens)]> Preprocessor predicate assertion
46 46 * -B<[static|dynamic]> Specify dynamic or static binding
47 47 * -C Prevent preprocessor from removing comments
48 48 * -c Compile only - produce .o files, suppress linking
49 49 * -cg92 Alias for -xtarget=ss1000
50 50 * -D<name[=token]> Associate name with token as if by #define
51 51 * -d[y|n] dynamic [-dy] or static [-dn] option to linker
52 52 * -E Compile source through preprocessor only, output to stdout
53 53 * -erroff=<t> Suppress warnings specified by tags t(%none, %all, <tag list>)
54 54 * -errtags=<a> Display messages with tags a(no, yes)
55 55 * -errwarn=<t> Treats warnings specified by tags t(%none, %all, <tag list>)
56 56 * as errors
57 57 * -fast Optimize using a selection of options
58 58 * -fd Report old-style function definitions and declarations
59 59 * -fnonstd Initialize floating-point hardware to non-standard preferences
60 60 * -fns[=<yes|no>] Select non-standard floating point mode
61 61 * -fprecision=<p> Set FP rounding precision mode p(single, double, extended)
62 62 * -fround=<r> Select the IEEE rounding mode in effect at startup
63 63 * -fsimple[=<n>] Select floating-point optimization preferences <n>
64 64 * -fsingle Use single-precision arithmetic (-Xt and -Xs modes only)
65 65 * -ftrap=<t> Select floating-point trapping mode in effect at startup
66 66 * -fstore force floating pt. values to target precision on assignment
67 67 * -G Build a dynamic shared library
68 68 * -g Compile for debugging
69 69 * -H Print path name of each file included during compilation
70 70 * -h <name> Assign <name> to generated dynamic shared library
71 71 * -I<dir> Add <dir> to preprocessor #include file search path
72 72 * -i Passed to linker to ignore any LD_LIBRARY_PATH setting
73 73 * -keeptmp Keep temporary files created during compilation
74 74 * -KPIC Compile position independent code with 32-bit addresses
75 75 * -Kpic Compile position independent code
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 * -KPIC -fPIC
184 184 * -Kpic -fpic
185 185 * -L<dir> pass-thru
186 186 * -l<name> pass-thru
187 187 * -mc error
188 188 * -mr error
189 189 * -mr,"string" error
190 190 * -mt -D_REENTRANT
191 191 * -native error
192 192 * -nofstore error
193 193 * -nolib -nodefaultlibs
194 194 * -norunpath ignore
195 195 * -O -O1 (Check the man page to be certain)
196 196 * -o <outputfile> pass-thru
197 197 * -P -E -o filename.i (or error)
198 198 * -p pass-thru
199 199 * -Q[y|n] error
200 200 * -R<dir[:dir]> pass-thru
201 201 * -S pass-thru
202 202 * -s -Wl,-s
203 203 * -t -Wl,-t
204 204 * -U<name> pass-thru
205 205 * -V --version
206 206 * -v -Wall
207 207 * -Wa,<arg> pass-thru
208 208 * -Wp,<arg> pass-thru except -xc99=<a>
209 209 * -Wl,<arg> pass-thru
210 210 * -W{m,0,2,h,i,u> error/ignore
211 211 * -xmodel=kernel -ffreestanding -mcmodel=kernel -mno-red-zone
212 212 * -Wu,-save_args -msave-args
213 213 * -w pass-thru
214 214 * -Xa -std=iso9899:199409 or -ansi
215 215 * -Xt error
216 216 * -Xs -traditional -std=c89
217 217 * -xarch=<a> table
218 218 * -xbuiltin[=<b>] -fbuiltin (-fno-builtin otherwise)
219 219 * -xCC ignore
220 220 * -xchip=<c> table
221 221 * -xcode=<c> table
222 222 * -xdebugformat=<format> ignore (always use dwarf-2 for gcc)
223 223 * -xcrossfile[=<n>] ignore
224 224 * -xe error
225 225 * -xF error
226 226 * -xhelp=<f> error
227 227 * -xildoff ignore
228 228 * -xildon ignore
229 229 * -xinline ignore
230 230 * -xlibmieee error
231 231 * -xlibmil error
232 232 * -xlic_lib=sunperf error
233 233 * -xmaxopt=[...] error
234 234 * -xO<n> -O<n>
235 235 * -xP error
236 236 * -xprofile=<p> error
237 237 * -xregs=<r> table
238 238 * -xs error
239 239 * -xsb error
240 240 * -xsbfast error
241 241 * -xsfpconst error
242 242 * -xspace ignore (-not -Os)
243 243 * -xstrconst ignore
244 244 * -xtarget=<t> table
245 245 * -xtemp=<dir> error
246 246 * -xtime error
247 247 * -xtransition -Wtransition
248 248 * -xunroll=n error
249 249 * -W0,-xdbggen=no%usedonly -fno-eliminate-unused-debug-symbols
250 250 * -fno-eliminate-unused-debug-types
251 251 * -Y<c>,<dir> error
252 252 * -YA,<dir> error
253 253 * -YI,<dir> -nostdinc -I<dir>
254 254 * -YP,<dir> error
255 255 * -YS,<dir> error
256 256 */
257 257
258 258 #include <ctype.h>
259 259 #include <err.h>
260 260 #include <errno.h>
261 261 #include <fcntl.h>
262 262 #include <getopt.h>
263 263 #include <stdio.h>
264 264 #include <stdlib.h>
265 265 #include <string.h>
266 266 #include <unistd.h>
267 267
268 268 #include <sys/param.h>
269 269 #include <sys/stat.h>
270 270 #include <sys/types.h>
271 271 #include <sys/utsname.h>
272 272 #include <sys/wait.h>
273 273
274 274 #define CW_F_CXX 0x01
275 275 #define CW_F_SHADOW 0x02
276 276 #define CW_F_EXEC 0x04
277 277 #define CW_F_ECHO 0x08
278 278 #define CW_F_XLATE 0x10
279 279 #define CW_F_PROG 0x20
280 280
281 281 typedef enum cw_op {
282 282 CW_O_NONE = 0,
283 283 CW_O_PREPROCESS,
284 284 CW_O_COMPILE,
285 285 CW_O_LINK
286 286 } cw_op_t;
287 287
288 288 struct aelist {
289 289 struct ae {
290 290 struct ae *ae_next;
291 291 char *ae_arg;
292 292 } *ael_head, *ael_tail;
293 293 int ael_argc;
294 294 };
295 295
296 296 typedef enum {
297 297 GNU,
298 298 SUN
299 299 } compiler_style_t;
300 300
301 301 typedef struct {
302 302 char *c_name;
303 303 char *c_path;
304 304 compiler_style_t c_style;
305 305 } cw_compiler_t;
306 306
307 307 typedef struct cw_ictx {
308 308 struct cw_ictx *i_next;
309 309 cw_compiler_t *i_compiler;
310 310 struct aelist *i_ae;
311 311 uint32_t i_flags;
312 312 int i_oldargc;
313 313 char **i_oldargv;
314 314 pid_t i_pid;
315 315 char i_discard[MAXPATHLEN];
316 316 char *i_stderr;
317 317 } cw_ictx_t;
318 318
319 319 /*
320 320 * Status values to indicate which Studio compiler and associated
321 321 * flags are being used.
322 322 */
323 323 #define M32 0x01 /* -m32 - only on Studio 12 */
324 324 #define M64 0x02 /* -m64 - only on Studio 12 */
325 325 #define SS11 0x100 /* Studio 11 */
326 326 #define SS12 0x200 /* Studio 12 */
327 327
328 328 #define TRANS_ENTRY 5
329 329 /*
330 330 * Translation table definition for the -xarch= flag. The "x_arg"
331 331 * value is translated into the appropriate gcc flags according
332 332 * to the values in x_trans[n]. The x_flags indicates what compiler
333 333 * is being used and what flags have been set via the use of
334 334 * "x_arg".
335 335 */
336 336 typedef struct xarch_table {
337 337 char *x_arg;
338 338 int x_flags;
339 339 char *x_trans[TRANS_ENTRY];
340 340 } xarch_table_t;
341 341
342 342 /*
343 343 * The translation table for the -xarch= flag used in the Studio compilers.
344 344 */
345 345 static const xarch_table_t xtbl[] = {
346 346 #if defined(__x86)
347 347 { "generic", SS11, {NULL} },
348 348 { "generic64", (SS11|M64), { "-m64", "-mtune=opteron" } },
349 349 { "amd64", (SS11|M64), { "-m64", "-mtune=opteron" } },
350 350 { "386", SS11, { "-march=i386" } },
351 351 { "pentium_pro", SS11, { "-march=pentiumpro" } },
352 352 { "sse", SS11, { "-msse", "-mfpmath=sse" } },
353 353 { "sse2", SS11, { "-msse2", "-mfpmath=sse" } },
354 354 #elif defined(__sparc)
355 355 { "generic", (SS11|M32), { "-m32", "-mcpu=v8" } },
356 356 { "generic64", (SS11|M64), { "-m64", "-mcpu=v9" } },
357 357 { "v8", (SS11|M32), { "-m32", "-mcpu=v8", "-mno-v8plus" } },
358 358 { "v8plus", (SS11|M32), { "-m32", "-mcpu=v9", "-mv8plus" } },
359 359 { "v8plusa", (SS11|M32), { "-m32", "-mcpu=ultrasparc", "-mv8plus",
360 360 "-mvis" } },
361 361 { "v8plusb", (SS11|M32), { "-m32", "-mcpu=ultrasparc3", "-mv8plus",
362 362 "-mvis" } },
363 363 { "v9", (SS11|M64), { "-m64", "-mcpu=v9" } },
364 364 { "v9a", (SS11|M64), { "-m64", "-mcpu=ultrasparc", "-mvis" } },
365 365 { "v9b", (SS11|M64), { "-m64", "-mcpu=ultrasparc3", "-mvis" } },
366 366 { "sparc", SS12, { "-mcpu=v9", "-mv8plus" } },
367 367 { "sparcvis", SS12, { "-mcpu=ultrasparc", "-mvis" } },
368 368 { "sparcvis2", SS12, { "-mcpu=ultrasparc3", "-mvis" } }
369 369 #endif
370 370 };
371 371
372 372 static int xtbl_size = sizeof (xtbl) / sizeof (xarch_table_t);
373 373
374 374 static const char *xchip_tbl[] = {
375 375 #if defined(__x86)
376 376 "386", "-mtune=i386", NULL,
377 377 "486", "-mtune=i486", NULL,
378 378 "pentium", "-mtune=pentium", NULL,
379 379 "pentium_pro", "-mtune=pentiumpro", NULL,
380 380 #elif defined(__sparc)
381 381 "super", "-mtune=supersparc", NULL,
382 382 "ultra", "-mtune=ultrasparc", NULL,
383 383 "ultra3", "-mtune=ultrasparc3", NULL,
384 384 #endif
385 385 NULL, NULL
386 386 };
387 387
388 388 static const char *xcode_tbl[] = {
389 389 #if defined(__sparc)
390 390 "abs32", "-fno-pic", "-mcmodel=medlow", NULL,
391 391 "abs44", "-fno-pic", "-mcmodel=medmid", NULL,
392 392 "abs64", "-fno-pic", "-mcmodel=medany", NULL,
393 393 "pic13", "-fpic", NULL,
394 394 "pic32", "-fPIC", NULL,
395 395 #endif
396 396 NULL, NULL
397 397 };
398 398
399 399 static const char *xtarget_tbl[] = {
400 400 #if defined(__x86)
401 401 "pentium_pro", "-march=pentiumpro", NULL,
402 402 #endif /* __x86 */
403 403 NULL, NULL
404 404 };
405 405
406 406 static const char *xregs_tbl[] = {
407 407 #if defined(__sparc)
408 408 "appl", "-mapp-regs", NULL,
409 409 "no%appl", "-mno-app-regs", NULL,
410 410 "float", "-mfpu", NULL,
411 411 "no%float", "-mno-fpu", NULL,
412 412 #endif /* __sparc */
413 413 NULL, NULL
414 414 };
415 415
416 416 static void
417 417 nomem(void)
418 418 {
419 419 errx(1, "out of memory");
420 420 }
421 421
422 422 static void
423 423 newae(struct aelist *ael, const char *arg)
424 424 {
425 425 struct ae *ae;
426 426
427 427 if ((ae = calloc(sizeof (*ae), 1)) == NULL)
428 428 nomem();
429 429 ae->ae_arg = strdup(arg);
430 430 if (ael->ael_tail == NULL)
431 431 ael->ael_head = ae;
432 432 else
433 433 ael->ael_tail->ae_next = ae;
434 434 ael->ael_tail = ae;
435 435 ael->ael_argc++;
436 436 }
437 437
438 438 static cw_ictx_t *
439 439 newictx(void)
440 440 {
441 441 cw_ictx_t *ctx = calloc(sizeof (cw_ictx_t), 1);
442 442 if (ctx)
443 443 if ((ctx->i_ae = calloc(sizeof (struct aelist), 1)) == NULL) {
444 444 free(ctx);
445 445 return (NULL);
446 446 }
447 447
448 448 return (ctx);
449 449 }
450 450
451 451 static void
452 452 error(const char *arg)
453 453 {
454 454 errx(2, "error: mapping failed at or near arg '%s'", arg);
455 455 }
456 456
457 457 /*
458 458 * Add the current favourite set of warnings to the gcc invocation.
459 459 */
460 460 static void
461 461 warnings(struct aelist *h)
462 462 {
463 463 static int warningsonce;
464 464
465 465 if (warningsonce++)
466 466 return;
467 467
468 468 /*
469 469 * Enable as many warnings as exist, then disable those that we never
470 470 * ever want.
471 471 */
472 472 newae(h, "-Wall");
473 473 newae(h, "-Wextra");
474 474 }
475 475
476 476 static void
477 477 optim_disable(struct aelist *h, int level)
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477 lines elided |
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478 478 {
479 479 if (level >= 2) {
480 480 newae(h, "-fno-strict-aliasing");
481 481 newae(h, "-fno-unit-at-a-time");
482 482 newae(h, "-fno-optimize-sibling-calls");
483 483 }
484 484 }
485 485
486 486 /* ARGSUSED */
487 487 static void
488 -Xamode(struct aelist __unused *h)
488 +Xamode(struct aelist *h __attribute__((__unused__)))
489 489 {
490 490 }
491 491
492 492 static void
493 493 Xsmode(struct aelist *h)
494 494 {
495 495 static int xsonce;
496 496
497 497 if (xsonce++)
498 498 return;
499 499
500 500 newae(h, "-traditional");
501 501 newae(h, "-traditional-cpp");
502 502 }
503 503
504 504 static void
505 505 usage()
506 506 {
507 507 extern char *__progname;
508 508 (void) fprintf(stderr,
509 509 "usage: %s [-C] [--versions] --primary <compiler> "
510 510 "[--shadow <compiler>]... -- cflags...\n",
511 511 __progname);
512 512 (void) fprintf(stderr, "compilers take the form: name,path,style\n"
513 513 " - name: a unique name usable in flag specifiers\n"
514 514 " - path: path to the compiler binary\n"
515 515 " - style: the style of flags expected: either sun or gnu\n");
516 516 exit(2);
517 517 }
518 518
519 519 static int
520 520 xlate_xtb(struct aelist *h, const char *xarg)
521 521 {
522 522 int i, j;
523 523
524 524 for (i = 0; i < xtbl_size; i++) {
525 525 if (strcmp(xtbl[i].x_arg, xarg) == 0)
526 526 break;
527 527 }
528 528
529 529 /*
530 530 * At the end of the table and so no matching "arg" entry
531 531 * found and so this must be a bad -xarch= flag.
532 532 */
533 533 if (i == xtbl_size)
534 534 error(xarg);
535 535
536 536 for (j = 0; j < TRANS_ENTRY; j++) {
537 537 if (xtbl[i].x_trans[j] != NULL)
538 538 newae(h, xtbl[i].x_trans[j]);
539 539 else
540 540 break;
541 541 }
542 542 return (xtbl[i].x_flags);
543 543
544 544 }
545 545
546 546 static void
547 547 xlate(struct aelist *h, const char *xarg, const char **table)
548 548 {
549 549 while (*table != NULL && strcmp(xarg, *table) != 0) {
550 550 while (*table != NULL)
551 551 table++;
552 552 table++;
553 553 }
554 554
555 555 if (*table == NULL)
556 556 error(xarg);
557 557
558 558 table++;
559 559
560 560 while (*table != NULL) {
561 561 newae(h, *table);
562 562 table++;
563 563 }
564 564 }
565 565
566 566 static void
567 567 do_gcc(cw_ictx_t *ctx)
568 568 {
569 569 int c;
570 570 int pic = 0, nolibc = 0;
571 571 int in_output = 0, seen_o = 0, c_files = 0;
572 572 cw_op_t op = CW_O_LINK;
573 573 char *model = NULL;
574 574 char *nameflag;
575 575 int mflag = 0;
576 576
577 577 if (ctx->i_flags & CW_F_PROG) {
578 578 newae(ctx->i_ae, "--version");
579 579 return;
580 580 }
581 581
582 582 newae(ctx->i_ae, "-fident");
583 583 newae(ctx->i_ae, "-finline");
584 584 newae(ctx->i_ae, "-fno-inline-functions");
585 585 newae(ctx->i_ae, "-fno-builtin");
586 586 newae(ctx->i_ae, "-fno-asm");
587 587 newae(ctx->i_ae, "-fdiagnostics-show-option");
588 588 newae(ctx->i_ae, "-nodefaultlibs");
589 589
590 590 #if defined(__sparc)
591 591 /*
592 592 * The SPARC ldd and std instructions require 8-byte alignment of
593 593 * their address operand. gcc correctly uses them only when the
594 594 * ABI requires 8-byte alignment; unfortunately we have a number of
595 595 * pieces of buggy code that doesn't conform to the ABI. This
596 596 * flag makes gcc work more like Studio with -xmemalign=4.
597 597 */
598 598 newae(ctx->i_ae, "-mno-integer-ldd-std");
599 599 #endif
600 600
601 601 /*
602 602 * This is needed because 'u' is defined
603 603 * under a conditional on 'sun'. Should
604 604 * probably just remove the conditional,
605 605 * or make it be dependent on '__sun'.
606 606 *
607 607 * -Dunix is also missing in enhanced ANSI mode
608 608 */
609 609 newae(ctx->i_ae, "-D__sun");
610 610
611 611 if (asprintf(&nameflag, "-_%s=", ctx->i_compiler->c_name) == -1)
612 612 nomem();
613 613
614 614 /*
615 615 * Walk the argument list, translating as we go ..
616 616 */
617 617 while (--ctx->i_oldargc > 0) {
618 618 char *arg = *++ctx->i_oldargv;
619 619 size_t arglen = strlen(arg);
620 620
621 621 if (*arg == '-') {
622 622 arglen--;
623 623 } else {
624 624 /*
625 625 * Discard inline files that gcc doesn't grok
626 626 */
627 627 if (!in_output && arglen > 3 &&
628 628 strcmp(arg + arglen - 3, ".il") == 0)
629 629 continue;
630 630
631 631 if (!in_output && arglen > 2 &&
632 632 arg[arglen - 2] == '.' &&
633 633 (arg[arglen - 1] == 'S' || arg[arglen - 1] == 's' ||
634 634 arg[arglen - 1] == 'c' || arg[arglen - 1] == 'i'))
635 635 c_files++;
636 636
637 637 /*
638 638 * Otherwise, filenames and partial arguments
639 639 * are passed through for gcc to chew on. However,
640 640 * output is always discarded for the secondary
641 641 * compiler.
642 642 */
643 643 if ((ctx->i_flags & CW_F_SHADOW) && in_output)
644 644 newae(ctx->i_ae, ctx->i_discard);
645 645 else
646 646 newae(ctx->i_ae, arg);
647 647 in_output = 0;
648 648 continue;
649 649 }
650 650
651 651 if (ctx->i_flags & CW_F_CXX) {
652 652 if (strncmp(arg, "-_g++=", 6) == 0) {
653 653 newae(ctx->i_ae, strchr(arg, '=') + 1);
654 654 continue;
655 655 }
656 656 if (strncmp(arg, "-compat=", 8) == 0) {
657 657 /* discard -compat=4 and -compat=5 */
658 658 continue;
659 659 }
660 660 if (strcmp(arg, "-Qoption") == 0) {
661 661 /* discard -Qoption and its two arguments */
662 662 if (ctx->i_oldargc < 3)
663 663 error(arg);
664 664 ctx->i_oldargc -= 2;
665 665 ctx->i_oldargv += 2;
666 666 continue;
667 667 }
668 668 if (strcmp(arg, "-xwe") == 0) {
669 669 /* turn warnings into errors */
670 670 newae(ctx->i_ae, "-Werror");
671 671 continue;
672 672 }
673 673 if (strcmp(arg, "-norunpath") == 0) {
674 674 /* gcc has no corresponding option */
675 675 continue;
676 676 }
677 677 if (strcmp(arg, "-nolib") == 0) {
678 678 /* -nodefaultlibs is on by default */
679 679 nolibc = 1;
680 680 continue;
681 681 }
682 682 #if defined(__sparc)
683 683 if (strcmp(arg, "-cg92") == 0) {
684 684 mflag |= xlate_xtb(ctx->i_ae, "v8");
685 685 xlate(ctx->i_ae, "super", xchip_tbl);
686 686 continue;
687 687 }
688 688 #endif /* __sparc */
689 689 }
690 690
691 691 switch ((c = arg[1])) {
692 692 case '_':
693 693 if ((strncmp(arg, nameflag, strlen(nameflag)) == 0) ||
694 694 (strncmp(arg, "-_gcc=", 6) == 0) ||
695 695 (strncmp(arg, "-_gnu=", 6) == 0)) {
696 696 newae(ctx->i_ae, strchr(arg, '=') + 1);
697 697 }
698 698 break;
699 699 case '#':
700 700 if (arglen == 1) {
701 701 newae(ctx->i_ae, "-v");
702 702 break;
703 703 }
704 704 error(arg);
705 705 break;
706 706 case 'g':
707 707 newae(ctx->i_ae, "-gdwarf-2");
708 708 break;
709 709 case 'E':
710 710 if (arglen == 1) {
711 711 newae(ctx->i_ae, "-xc");
712 712 newae(ctx->i_ae, arg);
713 713 op = CW_O_PREPROCESS;
714 714 nolibc = 1;
715 715 break;
716 716 }
717 717 error(arg);
718 718 break;
719 719 case 'c':
720 720 case 'S':
721 721 if (arglen == 1) {
722 722 op = CW_O_COMPILE;
723 723 nolibc = 1;
724 724 }
725 725 /* FALLTHROUGH */
726 726 case 'C':
727 727 case 'H':
728 728 case 'p':
729 729 if (arglen == 1) {
730 730 newae(ctx->i_ae, arg);
731 731 break;
732 732 }
733 733 error(arg);
734 734 break;
735 735 case 'A':
736 736 case 'h':
737 737 case 'I':
738 738 case 'i':
739 739 case 'L':
740 740 case 'l':
741 741 case 'R':
742 742 case 'U':
743 743 case 'u':
744 744 case 'w':
745 745 newae(ctx->i_ae, arg);
746 746 break;
747 747 case 'o':
748 748 seen_o = 1;
749 749 if (arglen == 1) {
750 750 in_output = 1;
751 751 newae(ctx->i_ae, arg);
752 752 } else if (ctx->i_flags & CW_F_SHADOW) {
753 753 newae(ctx->i_ae, "-o");
754 754 newae(ctx->i_ae, ctx->i_discard);
755 755 } else {
756 756 newae(ctx->i_ae, arg);
757 757 }
758 758 break;
759 759 case 'D':
760 760 newae(ctx->i_ae, arg);
761 761 /*
762 762 * XXX Clearly a hack ... do we need _KADB too?
763 763 */
764 764 if (strcmp(arg, "-D_KERNEL") == 0 ||
765 765 strcmp(arg, "-D_BOOT") == 0)
766 766 newae(ctx->i_ae, "-ffreestanding");
767 767 break;
768 768 case 'd':
769 769 if (arglen == 2) {
770 770 if (strcmp(arg, "-dy") == 0) {
771 771 newae(ctx->i_ae, "-Wl,-dy");
772 772 break;
773 773 }
774 774 if (strcmp(arg, "-dn") == 0) {
775 775 newae(ctx->i_ae, "-Wl,-dn");
776 776 break;
777 777 }
778 778 }
779 779 if (strcmp(arg, "-dalign") == 0) {
780 780 /*
781 781 * -dalign forces alignment in some cases;
782 782 * gcc does not need any flag to do this.
783 783 */
784 784 break;
785 785 }
786 786 error(arg);
787 787 break;
788 788 case 'e':
789 789 if (strcmp(arg,
790 790 "-erroff=E_EMPTY_TRANSLATION_UNIT") == 0) {
791 791 /*
792 792 * Accept but ignore this -- gcc doesn't
793 793 * seem to complain about empty translation
794 794 * units
795 795 */
796 796 break;
797 797 }
798 798 /* XX64 -- ignore all -erroff= options, for now */
799 799 if (strncmp(arg, "-erroff=", 8) == 0)
800 800 break;
801 801 if (strcmp(arg, "-errtags=yes") == 0) {
802 802 warnings(ctx->i_ae);
803 803 break;
804 804 }
805 805 if (strcmp(arg, "-errwarn=%all") == 0) {
806 806 newae(ctx->i_ae, "-Werror");
807 807 break;
808 808 }
809 809 error(arg);
810 810 break;
811 811 case 'G':
812 812 newae(ctx->i_ae, "-shared");
813 813 nolibc = 1;
814 814 break;
815 815 case 'k':
816 816 if (strcmp(arg, "-keeptmp") == 0) {
817 817 newae(ctx->i_ae, "-save-temps");
818 818 break;
819 819 }
820 820 error(arg);
821 821 break;
822 822 case 'K':
823 823 if (arglen == 1) {
824 824 if ((arg = *++ctx->i_oldargv) == NULL ||
825 825 *arg == '\0')
826 826 error("-K");
827 827 ctx->i_oldargc--;
828 828 } else {
829 829 arg += 2;
830 830 }
831 831 if (strcmp(arg, "pic") == 0) {
832 832 newae(ctx->i_ae, "-fpic");
833 833 pic = 1;
834 834 break;
835 835 }
836 836 if (strcmp(arg, "PIC") == 0) {
837 837 newae(ctx->i_ae, "-fPIC");
838 838 pic = 1;
839 839 break;
840 840 }
841 841 error("-K");
842 842 break;
843 843 case 'm':
844 844 if (strcmp(arg, "-mt") == 0) {
845 845 newae(ctx->i_ae, "-D_REENTRANT");
846 846 break;
847 847 }
848 848 if (strcmp(arg, "-m64") == 0) {
849 849 newae(ctx->i_ae, "-m64");
850 850 #if defined(__x86)
851 851 newae(ctx->i_ae, "-mtune=opteron");
852 852 #endif
853 853 mflag |= M64;
854 854 break;
855 855 }
856 856 if (strcmp(arg, "-m32") == 0) {
857 857 newae(ctx->i_ae, "-m32");
858 858 mflag |= M32;
859 859 break;
860 860 }
861 861 error(arg);
862 862 break;
863 863 case 'B': /* linker options */
864 864 case 'M':
865 865 case 'z':
866 866 {
867 867 char *opt;
868 868 size_t len;
869 869 char *s;
870 870
871 871 if (arglen == 1) {
872 872 opt = *++ctx->i_oldargv;
873 873 if (opt == NULL || *opt == '\0')
874 874 error(arg);
875 875 ctx->i_oldargc--;
876 876 } else {
877 877 opt = arg + 2;
878 878 }
879 879 len = strlen(opt) + 7;
880 880 if ((s = malloc(len)) == NULL)
881 881 nomem();
882 882 (void) snprintf(s, len, "-Wl,-%c%s", c, opt);
883 883 newae(ctx->i_ae, s);
884 884 free(s);
885 885 }
886 886 break;
887 887 case 'O':
888 888 if (arglen == 1) {
889 889 newae(ctx->i_ae, "-O");
890 890 break;
891 891 }
892 892 error(arg);
893 893 break;
894 894 case 'P':
895 895 /*
896 896 * We could do '-E -o filename.i', but that's hard,
897 897 * and we don't need it for the case that's triggering
898 898 * this addition. We'll require the user to specify
899 899 * -o in the Makefile. If they don't they'll find out
900 900 * in a hurry.
901 901 */
902 902 newae(ctx->i_ae, "-E");
903 903 op = CW_O_PREPROCESS;
904 904 nolibc = 1;
905 905 break;
906 906 case 's':
907 907 if (arglen == 1) {
908 908 newae(ctx->i_ae, "-Wl,-s");
909 909 break;
910 910 }
911 911 error(arg);
912 912 break;
913 913 case 't':
914 914 if (arglen == 1) {
915 915 newae(ctx->i_ae, "-Wl,-t");
916 916 break;
917 917 }
918 918 error(arg);
919 919 break;
920 920 case 'V':
921 921 if (arglen == 1) {
922 922 ctx->i_flags &= ~CW_F_ECHO;
923 923 newae(ctx->i_ae, "--version");
924 924 break;
925 925 }
926 926 error(arg);
927 927 break;
928 928 case 'v':
929 929 if (arglen == 1) {
930 930 warnings(ctx->i_ae);
931 931 break;
932 932 }
933 933 error(arg);
934 934 break;
935 935 case 'W':
936 936 if (strncmp(arg, "-Wp,-xc99", 9) == 0) {
937 937 /*
938 938 * gcc's preprocessor will accept c99
939 939 * regardless, so accept and ignore.
940 940 */
941 941 break;
942 942 }
943 943 if (strncmp(arg, "-Wa,", 4) == 0 ||
944 944 strncmp(arg, "-Wp,", 4) == 0 ||
945 945 strncmp(arg, "-Wl,", 4) == 0) {
946 946 newae(ctx->i_ae, arg);
947 947 break;
948 948 }
949 949 if (strcmp(arg, "-W0,-noglobal") == 0 ||
950 950 strcmp(arg, "-W0,-xglobalstatic") == 0) {
951 951 /*
952 952 * gcc doesn't prefix local symbols
953 953 * in debug mode, so this is not needed.
954 954 */
955 955 break;
956 956 }
957 957 if (strcmp(arg, "-W0,-Lt") == 0) {
958 958 /*
959 959 * Generate tests at the top of loops.
960 960 * There is no direct gcc equivalent, ignore.
961 961 */
962 962 break;
963 963 }
964 964 if (strcmp(arg, "-W0,-xdbggen=no%usedonly") == 0) {
965 965 newae(ctx->i_ae,
966 966 "-fno-eliminate-unused-debug-symbols");
967 967 newae(ctx->i_ae,
968 968 "-fno-eliminate-unused-debug-types");
969 969 break;
970 970 }
971 971 if (strcmp(arg, "-W2,-xwrap_int") == 0) {
972 972 /*
973 973 * Use the legacy behaviour (pre-SS11)
974 974 * for integer wrapping.
975 975 * gcc does not need this.
976 976 */
977 977 break;
978 978 }
979 979 if (strcmp(arg, "-Wd,-xsafe=unboundsym") == 0) {
980 980 /*
981 981 * Prevents optimizing away checks for
982 982 * unbound weak symbol addresses. gcc does
983 983 * not do this, so it's not needed.
984 984 */
985 985 break;
986 986 }
987 987 if (strncmp(arg, "-Wc,-xcode=", 11) == 0) {
988 988 xlate(ctx->i_ae, arg + 11, xcode_tbl);
989 989 if (strncmp(arg + 11, "pic", 3) == 0)
990 990 pic = 1;
991 991 break;
992 992 }
993 993 if (strncmp(arg, "-Wc,-Qiselect", 13) == 0) {
994 994 /*
995 995 * Prevents insertion of register symbols.
996 996 * gcc doesn't do this, so ignore it.
997 997 */
998 998 break;
999 999 }
1000 1000 if (strcmp(arg, "-Wc,-Qassembler-ounrefsym=0") == 0) {
1001 1001 /*
1002 1002 * Prevents optimizing away of static variables.
1003 1003 * gcc does not do this, so it's not needed.
1004 1004 */
1005 1005 break;
1006 1006 }
1007 1007 #if defined(__x86)
1008 1008 if (strcmp(arg, "-Wu,-save_args") == 0) {
1009 1009 newae(ctx->i_ae, "-msave-args");
1010 1010 break;
1011 1011 }
1012 1012 #endif /* __x86 */
1013 1013 error(arg);
1014 1014 break;
1015 1015 case 'X':
1016 1016 if (strcmp(arg, "-Xa") == 0 ||
1017 1017 strcmp(arg, "-Xt") == 0) {
1018 1018 Xamode(ctx->i_ae);
1019 1019 break;
1020 1020 }
1021 1021 if (strcmp(arg, "-Xs") == 0) {
1022 1022 Xsmode(ctx->i_ae);
1023 1023 break;
1024 1024 }
1025 1025 error(arg);
1026 1026 break;
1027 1027 case 'x':
1028 1028 if (arglen == 1)
1029 1029 error(arg);
1030 1030 switch (arg[2]) {
1031 1031 case 'a':
1032 1032 if (strncmp(arg, "-xarch=", 7) == 0) {
1033 1033 mflag |= xlate_xtb(ctx->i_ae, arg + 7);
1034 1034 break;
1035 1035 }
1036 1036 error(arg);
1037 1037 break;
1038 1038 case 'b':
1039 1039 if (strncmp(arg, "-xbuiltin=", 10) == 0) {
1040 1040 if (strcmp(arg + 10, "%all"))
1041 1041 newae(ctx->i_ae, "-fbuiltin");
1042 1042 break;
1043 1043 }
1044 1044 error(arg);
1045 1045 break;
1046 1046 case 'C':
1047 1047 /* Accept C++ style comments -- ignore */
1048 1048 if (strcmp(arg, "-xCC") == 0)
1049 1049 break;
1050 1050 error(arg);
1051 1051 break;
1052 1052 case 'c':
1053 1053 if (strncmp(arg, "-xc99=%all", 10) == 0) {
1054 1054 newae(ctx->i_ae, "-std=gnu99");
1055 1055 break;
1056 1056 }
1057 1057 if (strncmp(arg, "-xc99=%none", 11) == 0) {
1058 1058 newae(ctx->i_ae, "-std=gnu89");
1059 1059 break;
1060 1060 }
1061 1061 if (strncmp(arg, "-xchip=", 7) == 0) {
1062 1062 xlate(ctx->i_ae, arg + 7, xchip_tbl);
1063 1063 break;
1064 1064 }
1065 1065 if (strncmp(arg, "-xcode=", 7) == 0) {
1066 1066 xlate(ctx->i_ae, arg + 7, xcode_tbl);
1067 1067 if (strncmp(arg + 7, "pic", 3) == 0)
1068 1068 pic = 1;
1069 1069 break;
1070 1070 }
1071 1071 if (strncmp(arg, "-xcrossfile", 11) == 0)
1072 1072 break;
1073 1073 error(arg);
1074 1074 break;
1075 1075 case 'd':
1076 1076 if (strncmp(arg, "-xdebugformat=", 14) == 0)
1077 1077 break;
1078 1078 error(arg);
1079 1079 break;
1080 1080 case 'F':
1081 1081 /*
1082 1082 * Compile for mapfile reordering, or unused
1083 1083 * section elimination, syntax can be -xF or
1084 1084 * more complex, like -xF=%all -- ignore.
1085 1085 */
1086 1086 if (strncmp(arg, "-xF", 3) == 0)
1087 1087 break;
1088 1088 error(arg);
1089 1089 break;
1090 1090 case 'i':
1091 1091 if (strncmp(arg, "-xinline", 8) == 0)
1092 1092 /* No inlining; ignore */
1093 1093 break;
1094 1094 if (strcmp(arg, "-xildon") == 0 ||
1095 1095 strcmp(arg, "-xildoff") == 0)
1096 1096 /* No incremental linking; ignore */
1097 1097 break;
1098 1098 error(arg);
1099 1099 break;
1100 1100 #if defined(__x86)
1101 1101 case 'm':
1102 1102 if (strcmp(arg, "-xmodel=kernel") == 0) {
1103 1103 newae(ctx->i_ae, "-ffreestanding");
1104 1104 newae(ctx->i_ae, "-mno-red-zone");
1105 1105 model = "-mcmodel=kernel";
1106 1106 nolibc = 1;
1107 1107 break;
1108 1108 }
1109 1109 error(arg);
1110 1110 break;
1111 1111 #endif /* __x86 */
1112 1112 case 'O':
1113 1113 if (strncmp(arg, "-xO", 3) == 0) {
1114 1114 size_t len = strlen(arg);
1115 1115 char *s = NULL;
1116 1116 int c = *(arg + 3);
1117 1117 int level;
1118 1118
1119 1119 if (len != 4 || !isdigit(c))
1120 1120 error(arg);
1121 1121
1122 1122 level = atoi(arg + 3);
1123 1123 if (level > 5)
1124 1124 error(arg);
1125 1125 if (level >= 2) {
1126 1126 /*
1127 1127 * For gcc-3.4.x at -O2 we
1128 1128 * need to disable optimizations
1129 1129 * that break ON.
1130 1130 */
1131 1131 optim_disable(ctx->i_ae, level);
1132 1132 /*
1133 1133 * limit -xO3 to -O2 as well.
1134 1134 */
1135 1135 level = 2;
1136 1136 }
1137 1137 if (asprintf(&s, "-O%d", level) == -1)
1138 1138 nomem();
1139 1139 newae(ctx->i_ae, s);
1140 1140 free(s);
1141 1141 break;
1142 1142 }
1143 1143 error(arg);
1144 1144 break;
1145 1145 case 'r':
1146 1146 if (strncmp(arg, "-xregs=", 7) == 0) {
1147 1147 xlate(ctx->i_ae, arg + 7, xregs_tbl);
1148 1148 break;
1149 1149 }
1150 1150 error(arg);
1151 1151 break;
1152 1152 case 's':
1153 1153 if (strcmp(arg, "-xs") == 0 ||
1154 1154 strcmp(arg, "-xspace") == 0 ||
1155 1155 strcmp(arg, "-xstrconst") == 0)
1156 1156 break;
1157 1157 error(arg);
1158 1158 break;
1159 1159 case 't':
1160 1160 if (strncmp(arg, "-xtarget=", 9) == 0) {
1161 1161 xlate(ctx->i_ae, arg + 9, xtarget_tbl);
1162 1162 break;
1163 1163 }
1164 1164 error(arg);
1165 1165 break;
1166 1166 case 'e':
1167 1167 case 'h':
1168 1168 case 'l':
1169 1169 default:
1170 1170 error(arg);
1171 1171 break;
1172 1172 }
1173 1173 break;
1174 1174 case 'Y':
1175 1175 if (arglen == 1) {
1176 1176 if ((arg = *++ctx->i_oldargv) == NULL ||
1177 1177 *arg == '\0')
1178 1178 error("-Y");
1179 1179 ctx->i_oldargc--;
1180 1180 arglen = strlen(arg + 1);
1181 1181 } else {
1182 1182 arg += 2;
1183 1183 }
1184 1184 /* Just ignore -YS,... for now */
1185 1185 if (strncmp(arg, "S,", 2) == 0)
1186 1186 break;
1187 1187 if (strncmp(arg, "l,", 2) == 0) {
1188 1188 char *s = strdup(arg);
1189 1189 s[0] = '-';
1190 1190 s[1] = 'B';
1191 1191 newae(ctx->i_ae, s);
1192 1192 free(s);
1193 1193 break;
1194 1194 }
1195 1195 if (strncmp(arg, "I,", 2) == 0) {
1196 1196 char *s = strdup(arg);
1197 1197 s[0] = '-';
1198 1198 s[1] = 'I';
1199 1199 newae(ctx->i_ae, "-nostdinc");
1200 1200 newae(ctx->i_ae, s);
1201 1201 free(s);
1202 1202 break;
1203 1203 }
1204 1204 error(arg);
1205 1205 break;
1206 1206 case 'Q':
1207 1207 /*
1208 1208 * We could map -Qy into -Wl,-Qy etc.
1209 1209 */
1210 1210 default:
1211 1211 error(arg);
1212 1212 break;
1213 1213 }
1214 1214 }
1215 1215
1216 1216 free(nameflag);
1217 1217
1218 1218 if (c_files > 1 && (ctx->i_flags & CW_F_SHADOW) &&
1219 1219 op != CW_O_PREPROCESS) {
1220 1220 errx(2, "multiple source files are "
1221 1221 "allowed only with -E or -P");
1222 1222 }
1223 1223
1224 1224 /*
1225 1225 * Make sure that we do not have any unintended interactions between
1226 1226 * the xarch options passed in and the version of the Studio compiler
1227 1227 * used.
1228 1228 */
1229 1229 if ((mflag & (SS11|SS12)) == (SS11|SS12)) {
1230 1230 errx(2,
1231 1231 "Conflicting \"-xarch=\" flags (both Studio 11 and 12)\n");
1232 1232 }
1233 1233
1234 1234 switch (mflag) {
1235 1235 case 0:
1236 1236 /* FALLTHROUGH */
1237 1237 case M32:
1238 1238 #if defined(__sparc)
1239 1239 /*
1240 1240 * Only -m32 is defined and so put in the missing xarch
1241 1241 * translation.
1242 1242 */
1243 1243 newae(ctx->i_ae, "-mcpu=v8");
1244 1244 newae(ctx->i_ae, "-mno-v8plus");
1245 1245 #endif
1246 1246 break;
1247 1247 case M64:
1248 1248 #if defined(__sparc)
1249 1249 /*
1250 1250 * Only -m64 is defined and so put in the missing xarch
1251 1251 * translation.
1252 1252 */
1253 1253 newae(ctx->i_ae, "-mcpu=v9");
1254 1254 #endif
1255 1255 break;
1256 1256 case SS12:
1257 1257 #if defined(__sparc)
1258 1258 /* no -m32/-m64 flag used - this is an error for sparc builds */
1259 1259 (void) fprintf(stderr, "No -m32/-m64 flag defined\n");
1260 1260 exit(2);
1261 1261 #endif
1262 1262 break;
1263 1263 case SS11:
1264 1264 /* FALLTHROUGH */
1265 1265 case (SS11|M32):
1266 1266 case (SS11|M64):
1267 1267 break;
1268 1268 case (SS12|M32):
1269 1269 #if defined(__sparc)
1270 1270 /*
1271 1271 * Need to add in further 32 bit options because with SS12
1272 1272 * the xarch=sparcvis option can be applied to 32 or 64
1273 1273 * bit, and so the translatation table (xtbl) cannot handle
1274 1274 * that.
1275 1275 */
1276 1276 newae(ctx->i_ae, "-mv8plus");
1277 1277 #endif
1278 1278 break;
1279 1279 case (SS12|M64):
1280 1280 break;
1281 1281 default:
1282 1282 (void) fprintf(stderr,
1283 1283 "Incompatible -xarch= and/or -m32/-m64 options used.\n");
1284 1284 exit(2);
1285 1285 }
1286 1286
1287 1287 if ((op == CW_O_LINK || op == CW_O_PREPROCESS) &&
1288 1288 (ctx->i_flags & CW_F_SHADOW))
1289 1289 exit(0);
1290 1290
1291 1291 if (model && !pic)
1292 1292 newae(ctx->i_ae, model);
1293 1293 if (!nolibc)
1294 1294 newae(ctx->i_ae, "-lc");
1295 1295 if (!seen_o && (ctx->i_flags & CW_F_SHADOW)) {
1296 1296 newae(ctx->i_ae, "-o");
1297 1297 newae(ctx->i_ae, ctx->i_discard);
1298 1298 }
1299 1299 }
1300 1300
1301 1301 static void
1302 1302 do_cc(cw_ictx_t *ctx)
1303 1303 {
1304 1304 int in_output = 0, seen_o = 0;
1305 1305 cw_op_t op = CW_O_LINK;
1306 1306 char *nameflag;
1307 1307
1308 1308 if (ctx->i_flags & CW_F_PROG) {
1309 1309 newae(ctx->i_ae, "-V");
1310 1310 return;
1311 1311 }
1312 1312
1313 1313 if (asprintf(&nameflag, "-_%s=", ctx->i_compiler->c_name) == -1)
1314 1314 nomem();
1315 1315
1316 1316 while (--ctx->i_oldargc > 0) {
1317 1317 char *arg = *++ctx->i_oldargv;
1318 1318
1319 1319 if (strncmp(arg, "-_CC=", 5) == 0) {
1320 1320 newae(ctx->i_ae, strchr(arg, '=') + 1);
1321 1321 continue;
1322 1322 }
1323 1323
1324 1324 if (*arg != '-') {
1325 1325 if (in_output == 0 || !(ctx->i_flags & CW_F_SHADOW)) {
1326 1326 newae(ctx->i_ae, arg);
1327 1327 } else {
1328 1328 in_output = 0;
1329 1329 newae(ctx->i_ae, ctx->i_discard);
1330 1330 }
1331 1331 continue;
1332 1332 }
1333 1333 switch (*(arg + 1)) {
1334 1334 case '_':
1335 1335 if ((strncmp(arg, nameflag, strlen(nameflag)) == 0) ||
1336 1336 (strncmp(arg, "-_cc=", 5) == 0) ||
1337 1337 (strncmp(arg, "-_sun=", 6) == 0)) {
1338 1338 newae(ctx->i_ae, strchr(arg, '=') + 1);
1339 1339 }
1340 1340 break;
1341 1341
1342 1342 case 'V':
1343 1343 ctx->i_flags &= ~CW_F_ECHO;
1344 1344 newae(ctx->i_ae, arg);
1345 1345 break;
1346 1346 case 'o':
1347 1347 seen_o = 1;
1348 1348 if (strlen(arg) == 2) {
1349 1349 in_output = 1;
1350 1350 newae(ctx->i_ae, arg);
1351 1351 } else if (ctx->i_flags & CW_F_SHADOW) {
1352 1352 newae(ctx->i_ae, "-o");
1353 1353 newae(ctx->i_ae, ctx->i_discard);
1354 1354 } else {
1355 1355 newae(ctx->i_ae, arg);
1356 1356 }
1357 1357 break;
1358 1358 case 'c':
1359 1359 case 'S':
1360 1360 if (strlen(arg) == 2)
1361 1361 op = CW_O_COMPILE;
1362 1362 newae(ctx->i_ae, arg);
1363 1363 break;
1364 1364 case 'E':
1365 1365 case 'P':
1366 1366 if (strlen(arg) == 2)
1367 1367 op = CW_O_PREPROCESS;
1368 1368 /*FALLTHROUGH*/
1369 1369 default:
1370 1370 newae(ctx->i_ae, arg);
1371 1371 }
1372 1372 }
1373 1373
1374 1374 free(nameflag);
1375 1375
1376 1376 if ((op == CW_O_LINK || op == CW_O_PREPROCESS) &&
1377 1377 (ctx->i_flags & CW_F_SHADOW))
1378 1378 exit(0);
1379 1379
1380 1380 if (!seen_o && (ctx->i_flags & CW_F_SHADOW)) {
1381 1381 newae(ctx->i_ae, "-o");
1382 1382 newae(ctx->i_ae, ctx->i_discard);
1383 1383 }
1384 1384 }
1385 1385
1386 1386 static void
1387 1387 prepctx(cw_ictx_t *ctx)
1388 1388 {
1389 1389 newae(ctx->i_ae, ctx->i_compiler->c_path);
1390 1390
1391 1391 if (ctx->i_flags & CW_F_PROG) {
1392 1392 (void) printf("%s: %s\n", (ctx->i_flags & CW_F_SHADOW) ?
1393 1393 "shadow" : "primary", ctx->i_compiler->c_path);
1394 1394 (void) fflush(stdout);
1395 1395 }
1396 1396
1397 1397 if (!(ctx->i_flags & CW_F_XLATE))
1398 1398 return;
1399 1399
1400 1400 switch (ctx->i_compiler->c_style) {
1401 1401 case SUN:
1402 1402 do_cc(ctx);
1403 1403 break;
1404 1404 case GNU:
1405 1405 do_gcc(ctx);
1406 1406 break;
1407 1407 }
1408 1408 }
1409 1409
1410 1410 static int
1411 1411 invoke(cw_ictx_t *ctx)
1412 1412 {
1413 1413 char **newargv;
1414 1414 int ac;
1415 1415 struct ae *a;
1416 1416
1417 1417 if ((newargv = calloc(sizeof (*newargv), ctx->i_ae->ael_argc + 1)) ==
1418 1418 NULL)
1419 1419 nomem();
1420 1420
1421 1421 if (ctx->i_flags & CW_F_ECHO)
1422 1422 (void) fprintf(stderr, "+ ");
1423 1423
1424 1424 for (ac = 0, a = ctx->i_ae->ael_head; a; a = a->ae_next, ac++) {
1425 1425 newargv[ac] = a->ae_arg;
1426 1426 if (ctx->i_flags & CW_F_ECHO)
1427 1427 (void) fprintf(stderr, "%s ", a->ae_arg);
1428 1428 if (a == ctx->i_ae->ael_tail)
1429 1429 break;
1430 1430 }
1431 1431
1432 1432 if (ctx->i_flags & CW_F_ECHO) {
1433 1433 (void) fprintf(stderr, "\n");
1434 1434 (void) fflush(stderr);
1435 1435 }
1436 1436
1437 1437 if (!(ctx->i_flags & CW_F_EXEC))
1438 1438 return (0);
1439 1439
1440 1440 /*
1441 1441 * We must fix up the environment here so that the dependency files are
1442 1442 * not trampled by the shadow compiler. Also take care of GCC
1443 1443 * environment variables that will throw off gcc. This assumes a primary
1444 1444 * gcc.
1445 1445 */
1446 1446 if ((ctx->i_flags & CW_F_SHADOW) &&
1447 1447 (unsetenv("SUNPRO_DEPENDENCIES") != 0 ||
1448 1448 unsetenv("DEPENDENCIES_OUTPUT") != 0 ||
1449 1449 unsetenv("GCC_ROOT") != 0)) {
1450 1450 (void) fprintf(stderr, "error: environment setup failed: %s\n",
1451 1451 strerror(errno));
1452 1452 return (-1);
1453 1453 }
1454 1454
1455 1455 (void) execv(newargv[0], newargv);
1456 1456 warn("couldn't run %s", newargv[0]);
1457 1457
1458 1458 return (-1);
1459 1459 }
1460 1460
1461 1461 static int
1462 1462 reap(cw_ictx_t *ctx)
1463 1463 {
1464 1464 int status, ret = 0;
1465 1465 char buf[1024];
1466 1466 struct stat s;
1467 1467
1468 1468 /*
1469 1469 * Only wait for one specific child.
1470 1470 */
1471 1471 if (ctx->i_pid <= 0)
1472 1472 return (-1);
1473 1473
1474 1474 do {
1475 1475 if (waitpid(ctx->i_pid, &status, 0) < 0) {
1476 1476 warn("cannot reap child");
1477 1477 return (-1);
1478 1478 }
1479 1479 if (status != 0) {
1480 1480 if (WIFSIGNALED(status)) {
1481 1481 ret = -WTERMSIG(status);
1482 1482 break;
1483 1483 } else if (WIFEXITED(status)) {
1484 1484 ret = WEXITSTATUS(status);
1485 1485 break;
1486 1486 }
1487 1487 }
1488 1488 } while (!WIFEXITED(status) && !WIFSIGNALED(status));
1489 1489
1490 1490 (void) unlink(ctx->i_discard);
1491 1491
1492 1492 if (stat(ctx->i_stderr, &s) < 0) {
1493 1493 warn("stat failed on child cleanup");
1494 1494 return (-1);
1495 1495 }
1496 1496 if (s.st_size != 0) {
1497 1497 FILE *f;
1498 1498
1499 1499 if ((f = fopen(ctx->i_stderr, "r")) != NULL) {
1500 1500 while (fgets(buf, sizeof (buf), f))
1501 1501 (void) fprintf(stderr, "%s", buf);
1502 1502 (void) fflush(stderr);
1503 1503 (void) fclose(f);
1504 1504 }
1505 1505 }
1506 1506 (void) unlink(ctx->i_stderr);
1507 1507 free(ctx->i_stderr);
1508 1508
1509 1509 /*
1510 1510 * cc returns an error code when given -V; we want that to succeed.
1511 1511 */
1512 1512 if (ctx->i_flags & CW_F_PROG)
1513 1513 return (0);
1514 1514
1515 1515 return (ret);
1516 1516 }
1517 1517
1518 1518 static int
1519 1519 exec_ctx(cw_ictx_t *ctx, int block)
1520 1520 {
1521 1521 char *file;
1522 1522
1523 1523 /*
1524 1524 * To avoid offending cc's sensibilities, the name of its output
1525 1525 * file must end in '.o'.
1526 1526 */
1527 1527 if ((file = tempnam(NULL, ".cw")) == NULL) {
1528 1528 nomem();
1529 1529 return (-1);
1530 1530 }
1531 1531 (void) strlcpy(ctx->i_discard, file, MAXPATHLEN);
1532 1532 (void) strlcat(ctx->i_discard, ".o", MAXPATHLEN);
1533 1533 free(file);
1534 1534
1535 1535 if ((ctx->i_stderr = tempnam(NULL, ".cw")) == NULL) {
1536 1536 nomem();
1537 1537 return (-1);
1538 1538 }
1539 1539
1540 1540 if ((ctx->i_pid = fork()) == 0) {
1541 1541 int fd;
1542 1542
1543 1543 (void) fclose(stderr);
1544 1544 if ((fd = open(ctx->i_stderr, O_WRONLY | O_CREAT | O_EXCL,
1545 1545 0666)) < 0) {
1546 1546 err(1, "open failed for standard error");
1547 1547 }
1548 1548 if (dup2(fd, 2) < 0) {
1549 1549 err(1, "dup2 failed for standard error");
1550 1550 }
1551 1551 if (fd != 2)
1552 1552 (void) close(fd);
1553 1553 if (freopen("/dev/fd/2", "w", stderr) == NULL) {
1554 1554 err(1, "freopen failed for /dev/fd/2");
1555 1555 }
1556 1556
1557 1557 prepctx(ctx);
1558 1558 exit(invoke(ctx));
1559 1559 }
1560 1560
1561 1561 if (ctx->i_pid < 0) {
1562 1562 err(1, "fork failed");
1563 1563 }
1564 1564
1565 1565 if (block)
1566 1566 return (reap(ctx));
1567 1567
1568 1568 return (0);
1569 1569 }
1570 1570
1571 1571 static void
1572 1572 parse_compiler(const char *spec, cw_compiler_t *compiler)
1573 1573 {
1574 1574 char *tspec, *token;
1575 1575
1576 1576 if ((tspec = strdup(spec)) == NULL)
1577 1577 nomem();
1578 1578
1579 1579 if ((token = strsep(&tspec, ",")) == NULL)
1580 1580 errx(1, "Compiler is missing a name: %s", spec);
1581 1581 compiler->c_name = token;
1582 1582
1583 1583 if ((token = strsep(&tspec, ",")) == NULL)
1584 1584 errx(1, "Compiler is missing a path: %s", spec);
1585 1585 compiler->c_path = token;
1586 1586
1587 1587 if ((token = strsep(&tspec, ",")) == NULL)
1588 1588 errx(1, "Compiler is missing a style: %s", spec);
1589 1589
1590 1590 if ((strcasecmp(token, "gnu") == 0) ||
1591 1591 (strcasecmp(token, "gcc") == 0))
1592 1592 compiler->c_style = GNU;
1593 1593 else if ((strcasecmp(token, "sun") == 0) ||
1594 1594 (strcasecmp(token, "cc") == 0))
1595 1595 compiler->c_style = SUN;
1596 1596 else
1597 1597 errx(1, "unknown compiler style: %s", token);
1598 1598
1599 1599 if (tspec != NULL)
1600 1600 errx(1, "Excess tokens in compiler: %s", spec);
1601 1601 }
1602 1602
1603 1603 int
1604 1604 main(int argc, char **argv)
1605 1605 {
1606 1606 int ch;
1607 1607 cw_compiler_t primary = { NULL, NULL, 0 };
1608 1608 cw_compiler_t shadows[10];
1609 1609 int nshadows = 0;
1610 1610 int ret = 0;
1611 1611 boolean_t do_serial = B_FALSE;
1612 1612 boolean_t do_exec = B_FALSE;
1613 1613 boolean_t vflg = B_FALSE;
1614 1614 boolean_t Cflg = B_FALSE;
1615 1615 boolean_t cflg = B_FALSE;
1616 1616 boolean_t nflg = B_FALSE;
1617 1617
1618 1618 cw_ictx_t *main_ctx;
1619 1619
1620 1620 static struct option longopts[] = {
1621 1621 { "compiler", no_argument, NULL, 'c' },
1622 1622 { "noecho", no_argument, NULL, 'n' },
1623 1623 { "primary", required_argument, NULL, 'p' },
1624 1624 { "shadow", required_argument, NULL, 's' },
1625 1625 { "versions", no_argument, NULL, 'v' },
1626 1626 { NULL, 0, NULL, 0 },
1627 1627 };
1628 1628
1629 1629
1630 1630 if ((main_ctx = newictx()) == NULL)
1631 1631 nomem();
1632 1632
1633 1633 while ((ch = getopt_long(argc, argv, "C", longopts, NULL)) != -1) {
1634 1634 switch (ch) {
1635 1635 case 'c':
1636 1636 cflg = B_TRUE;
1637 1637 break;
1638 1638 case 'C':
1639 1639 Cflg = B_TRUE;
1640 1640 break;
1641 1641 case 'n':
1642 1642 nflg = B_TRUE;
1643 1643 break;
1644 1644 case 'p':
1645 1645 if (primary.c_path != NULL) {
1646 1646 warnx("Only one primary compiler may "
1647 1647 "be specified");
1648 1648 usage();
1649 1649 }
1650 1650
1651 1651 parse_compiler(optarg, &primary);
1652 1652 break;
1653 1653 case 's':
1654 1654 if (nshadows >= 10)
1655 1655 errx(1, "May only use 10 shadows at "
1656 1656 "the moment");
1657 1657 parse_compiler(optarg, &shadows[nshadows]);
1658 1658 nshadows++;
1659 1659 break;
1660 1660 case 'v':
1661 1661 vflg = B_TRUE;
1662 1662 break;
1663 1663 default:
1664 1664 (void) fprintf(stderr, "Did you forget '--'?\n");
1665 1665 usage();
1666 1666 }
1667 1667 }
1668 1668
1669 1669 if (primary.c_path == NULL) {
1670 1670 warnx("A primary compiler must be specified");
1671 1671 usage();
1672 1672 }
1673 1673
1674 1674 do_serial = (getenv("CW_SHADOW_SERIAL") == NULL) ? B_FALSE : B_TRUE;
1675 1675 do_exec = (getenv("CW_NO_EXEC") == NULL) ? B_TRUE : B_FALSE;
1676 1676
1677 1677 /* Leave room for argv[0] */
1678 1678 argc -= (optind - 1);
1679 1679 argv += (optind - 1);
1680 1680
1681 1681 main_ctx->i_oldargc = argc;
1682 1682 main_ctx->i_oldargv = argv;
1683 1683 main_ctx->i_flags = CW_F_XLATE;
1684 1684 if (nflg == 0)
1685 1685 main_ctx->i_flags |= CW_F_ECHO;
1686 1686 if (do_exec)
1687 1687 main_ctx->i_flags |= CW_F_EXEC;
1688 1688 if (Cflg)
1689 1689 main_ctx->i_flags |= CW_F_CXX;
1690 1690 main_ctx->i_compiler = &primary;
1691 1691
1692 1692 if (cflg) {
1693 1693 (void) fputs(primary.c_path, stdout);
1694 1694 }
1695 1695
1696 1696 if (vflg) {
1697 1697 (void) printf("cw version %s\n", CW_VERSION);
1698 1698 (void) fflush(stdout);
1699 1699 main_ctx->i_flags &= ~CW_F_ECHO;
1700 1700 main_ctx->i_flags |= CW_F_PROG | CW_F_EXEC;
1701 1701 do_serial = 1;
1702 1702 }
1703 1703
1704 1704 ret |= exec_ctx(main_ctx, do_serial);
1705 1705
1706 1706 for (int i = 0; i < nshadows; i++) {
1707 1707 int r;
1708 1708 cw_ictx_t *shadow_ctx;
1709 1709
1710 1710 if ((shadow_ctx = newictx()) == NULL)
1711 1711 nomem();
1712 1712
1713 1713 memcpy(shadow_ctx, main_ctx, sizeof (cw_ictx_t));
1714 1714
1715 1715 shadow_ctx->i_flags |= CW_F_SHADOW;
1716 1716 shadow_ctx->i_compiler = &shadows[i];
1717 1717
1718 1718 r = exec_ctx(shadow_ctx, do_serial);
1719 1719 if (r == 0) {
1720 1720 shadow_ctx->i_next = main_ctx->i_next;
1721 1721 main_ctx->i_next = shadow_ctx;
1722 1722 }
1723 1723 ret |= r;
1724 1724 }
1725 1725
1726 1726 if (!do_serial) {
1727 1727 cw_ictx_t *next = main_ctx;
1728 1728 while (next != NULL) {
1729 1729 cw_ictx_t *toreap = next;
1730 1730 next = next->i_next;
1731 1731 ret |= reap(toreap);
1732 1732 }
1733 1733 }
1734 1734
1735 1735 return (ret);
1736 1736 }
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