1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright 2011, Richard Lowe.
24 */
25 /*
26 * Copyright 2010 Sun Microsystems, Inc. All rights reserved.
27 * Use is subject to license terms.
28 */
29
30 /*
31 * Wrapper for the GNU C compiler to make it accept the Sun C compiler
32 * arguments where possible.
33 *
34 * Since the translation is inexact, this is something of a work-in-progress.
35 *
36 */
37
38 /* If you modify this file, you must increment CW_VERSION */
39 #define CW_VERSION "1.30"
40
41 /*
42 * -# Verbose mode
43 * -### Show compiler commands built by driver, no compilation
44 * -A<name[(tokens)]> Preprocessor predicate assertion
45 * -B<[static|dynamic]> Specify dynamic or static binding
46 * -C Prevent preprocessor from removing comments
47 * -c Compile only - produce .o files, suppress linking
48 * -cg92 Alias for -xtarget=ss1000
49 * -D<name[=token]> Associate name with token as if by #define
50 * -d[y|n] dynamic [-dy] or static [-dn] option to linker
51 * -E Compile source through preprocessor only, output to stdout
52 * -erroff=<t> Suppress warnings specified by tags t(%none, %all, <tag list>)
53 * -errtags=<a> Display messages with tags a(no, yes)
54 * -errwarn=<t> Treats warnings specified by tags t(%none, %all, <tag list>)
55 * as errors
56 * -fast Optimize using a selection of options
57 * -fd Report old-style function definitions and declarations
58 * -features=zla Allow zero-length arrays
59 * -flags Show this summary of compiler options
60 * -fnonstd Initialize floating-point hardware to non-standard preferences
61 * -fns[=<yes|no>] Select non-standard floating point mode
62 * -fprecision=<p> Set FP rounding precision mode p(single, double, extended)
63 * -fround=<r> Select the IEEE rounding mode in effect at startup
64 * -fsimple[=<n>] Select floating-point optimization preferences <n>
65 * -fsingle Use single-precision arithmetic (-Xt and -Xs modes only)
66 * -ftrap=<t> Select floating-point trapping mode in effect at startup
67 * -fstore force floating pt. values to target precision on assignment
68 * -G Build a dynamic shared library
69 * -g Compile for debugging
70 * -H Print path name of each file included during compilation
71 * -h <name> Assign <name> to generated dynamic shared library
72 * -I<dir> Add <dir> to preprocessor #include file search path
73 * -i Passed to linker to ignore any LD_LIBRARY_PATH setting
74 * -keeptmp Keep temporary files created during compilation
75 * -KPIC Compile position independent code with 32-bit addresses
76 * -Kpic Compile position independent code
77 * -L<dir> Pass to linker to add <dir> to the library search path
78 * -l<name> Link with library lib<name>.a or lib<name>.so
79 * -mc Remove duplicate strings from .comment section of output files
80 * -mr Remove all strings from .comment section of output files
81 * -mr,"string" Remove all strings and append "string" to .comment section
82 * -mt Specify options needed when compiling multi-threaded code
83 * -native Find available processor, generate code accordingly
84 * -nofstore Do not force floating pt. values to target precision
85 * on assignment
86 * -nolib Same as -xnolib
87 * -noqueue Disable queuing of compiler license requests
88 * -norunpath Do not build in a runtime path for shared libraries
89 * -O Use default optimization level (-xO2 or -xO3. Check man page.)
90 * -o <outputfile> Set name of output file to <outputfile>
91 * -P Compile source through preprocessor only, output to .i file
92 * -PIC Alias for -KPIC or -xcode=pic32
93 * -p Compile for profiling with prof
94 * -pic Alias for -Kpic or -xcode=pic13
95 * -Q[y|n] Emit/don't emit identification info to output file
96 * -qp Compile for profiling with prof
97 * -R<dir[:dir]> Build runtime search path list into executable
98 * -S Compile and only generate assembly code (.s)
99 * -s Strip symbol table from the executable file
100 * -t Turn off duplicate symbol warnings when linking
101 * -U<name> Delete initial definition of preprocessor symbol <name>
102 * -V Report version number of each compilation phase
103 * -v Do stricter semantic checking
104 * -W<c>,<arg> Pass <arg> to specified component <c> (a,l,m,p,0,2,h,i,u)
105 * -w Suppress compiler warning messages
106 * -Xa Compile assuming ANSI C conformance, allow K & R extensions
107 * (default mode)
108 * -Xc Compile assuming strict ANSI C conformance
109 * -Xs Compile assuming (pre-ANSI) K & R C style code
110 * -Xt Compile assuming K & R conformance, allow ANSI C
111 * -x386 Generate code for the 80386 processor
112 * -x486 Generate code for the 80486 processor
113 * -xarch=<a> Specify target architecture instruction set
114 * -xbuiltin[=<b>] When profitable inline, or substitute intrinisic functions
115 * for system functions, b={%all,%none}
116 * -xCC Accept C++ style comments
117 * -xchar_byte_order=<o> Specify multi-char byte order <o> (default, high, low)
118 * -xchip=<c> Specify the target processor for use by the optimizer
119 * -xcode=<c> Generate different code for forming addresses
120 * -xcrossfile[=<n>] Enable optimization and inlining across source files,
121 * n={0|1}
122 * -xe Perform only syntax/semantic checking, no code generation
123 * -xF Compile for later mapfile reordering or unused section
124 * elimination
125 * -xhelp=<f> Display on-line help information f(flags, readme, errors)
126 * -xildoff Cancel -xildon
127 * -xildon Enable use of the incremental linker, ild
128 * -xinline=[<a>,...,<a>] Attempt inlining of specified user routines,
129 * <a>={%auto,func,no%func}
130 * -xlibmieee Force IEEE 754 return values for math routines in
131 * exceptional cases
132 * -xlibmil Inline selected libm math routines for optimization
133 * -xlic_lib=sunperf Link in the Sun supplied performance libraries
134 * -xlicinfo Show license server information
135 * -xM Generate makefile dependencies
136 * -xM1 Generate makefile dependencies, but exclude /usr/include
137 * -xmaxopt=[off,1,2,3,4,5] maximum optimization level allowed on #pragma opt
138 * -xnolib Do not link with default system libraries
139 * -xnolibmil Cancel -xlibmil on command line
140 * -xO<n> Generate optimized code (n={1|2|3|4|5})
141 * -xP Print prototypes for function definitions
142 * -xpentium Generate code for the pentium processor
143 * -xpg Compile for profiling with gprof
144 * -xprofile=<p> Collect data for a profile or use a profile to optimize
145 * <p>={{collect,use}[:<path>],tcov}
146 * -xregs=<r> Control register allocation
147 * -xs Allow debugging without object (.o) files
148 * -xsb Compile for use with the WorkShop source browser
149 * -xsbfast Generate only WorkShop source browser info, no compilation
150 * -xsfpconst Represent unsuffixed floating point constants as single
151 * precision
152 * -xspace Do not do optimizations that increase code size
153 * -xstrconst Place string literals into read-only data segment
154 * -xtarget=<t> Specify target system for optimization
155 * -xtemp=<dir> Set directory for temporary files to <dir>
156 * -xtime Report the execution time for each compilation phase
157 * -xtransition Emit warnings for differences between K&R C and ANSI C
158 * -xtrigraphs[=<yes|no>] Enable|disable trigraph translation
159 * -xunroll=n Enable unrolling loops n times where possible
160 * -Y<c>,<dir> Specify <dir> for location of component <c> (a,l,m,p,0,h,i,u)
161 * -YA,<dir> Change default directory searched for components
162 * -YI,<dir> Change default directory searched for include files
163 * -YP,<dir> Change default directory for finding libraries files
164 * -YS,<dir> Change default directory for startup object files
165 */
166
167 /*
168 * Translation table:
169 */
170 /*
171 * -# -v
172 * -### error
173 * -A<name[(tokens)]> pass-thru
174 * -B<[static|dynamic]> pass-thru (syntax error for anything else)
175 * -C pass-thru
176 * -c pass-thru
177 * -cg92 -m32 -mcpu=v8 -mtune=supersparc (SPARC only)
178 * -D<name[=token]> pass-thru
179 * -dy or -dn -Wl,-dy or -Wl,-dn
180 * -E pass-thru
181 * -erroff=E_EMPTY_TRANSLATION_UNIT ignore
182 * -errtags=%all -Wall
183 * -errwarn=%all -Werror else -Wno-error
184 * -fast error
185 * -fd error
186 * -features=zla ignore
187 * -flags --help
188 * -fnonstd error
189 * -fns[=<yes|no>] error
190 * -fprecision=<p> error
191 * -fround=<r> error
192 * -fsimple[=<n>] error
193 * -fsingle[=<n>] error
194 * -ftrap=<t> error
195 * -fstore error
196 * -G pass-thru
197 * -g pass-thru
198 * -H pass-thru
199 * -h <name> pass-thru
200 * -I<dir> pass-thru
201 * -i pass-thru
202 * -keeptmp -save-temps
203 * -KPIC -fPIC
204 * -Kpic -fpic
205 * -L<dir> pass-thru
206 * -l<name> pass-thru
207 * -mc error
208 * -mr error
209 * -mr,"string" error
210 * -mt -D_REENTRANT
211 * -native error
212 * -nofstore error
213 * -nolib -nodefaultlibs
214 * -noqueue ignore
215 * -norunpath ignore
216 * -O -O1 (Check the man page to be certain)
217 * -o <outputfile> pass-thru
218 * -P -E -o filename.i (or error)
219 * -PIC -fPIC (C++ only)
220 * -p pass-thru
221 * -pic -fpic (C++ only)
222 * -Q[y|n] error
223 * -qp -p
224 * -R<dir[:dir]> pass-thru
225 * -S pass-thru
226 * -s -Wl,-s
227 * -t -Wl,-t
228 * -U<name> pass-thru
229 * -V --version
230 * -v -Wall
231 * -Wa,<arg> pass-thru
232 * -Wp,<arg> pass-thru except -xc99=<a>
233 * -Wl,<arg> pass-thru
234 * -W{m,0,2,h,i,u> error/ignore
235 * -Wu,-xmodel=kernel -ffreestanding -mcmodel=kernel -mno-red-zone
236 * -xmodel=kernel -ffreestanding -mcmodel=kernel -mno-red-zone
237 * -Wu,-save_args -msave-args
238 * -w pass-thru
239 * -Xa -std=iso9899:199409 or -ansi
240 * -Xc -ansi -pedantic
241 * -Xt error
242 * -Xs -traditional -std=c89
243 * -x386 -march=i386 (x86 only)
244 * -x486 -march=i486 (x86 only)
245 * -xarch=<a> table
246 * -xbuiltin[=<b>] -fbuiltin (-fno-builtin otherwise)
247 * -xCC ignore
248 * -xchar_byte_order=<o> error
249 * -xchip=<c> table
250 * -xcode=<c> table
251 * -xdebugformat=<format> ignore (always use dwarf-2 for gcc)
252 * -xcrossfile[=<n>] ignore
253 * -xe error
254 * -xF error
255 * -xhelp=<f> error
256 * -xildoff ignore
257 * -xildon ignore
258 * -xinline ignore
259 * -xlibmieee error
260 * -xlibmil error
261 * -xlic_lib=sunperf error
262 * -xM -M
263 * -xM1 -MM
264 * -xmaxopt=[...] error
265 * -xnolib -nodefaultlibs
266 * -xnolibmil error
267 * -xO<n> -O<n>
268 * -xP error
269 * -xpentium -march=pentium (x86 only)
270 * -xpg error
271 * -xprofile=<p> error
272 * -xregs=<r> table
273 * -xs error
274 * -xsb error
275 * -xsbfast error
276 * -xsfpconst error
277 * -xspace ignore (-not -Os)
278 * -xstrconst ignore
279 * -xtarget=<t> table
280 * -xtemp=<dir> error
281 * -xtime error
282 * -xtransition -Wtransition
283 * -xtrigraphs=<yes|no> -trigraphs -notrigraphs
284 * -xunroll=n error
285 * -W0,-xdbggen=no%usedonly -fno-eliminate-unused-debug-symbols
286 * -fno-eliminate-unused-debug-types
287 * -Y<c>,<dir> error
288 * -YA,<dir> error
289 * -YI,<dir> -nostdinc -I<dir>
290 * -YP,<dir> error
291 * -YS,<dir> error
292 */
293
294 #include <stdio.h>
295 #include <sys/types.h>
296 #include <unistd.h>
297 #include <string.h>
298 #include <stdlib.h>
299 #include <ctype.h>
300 #include <fcntl.h>
301 #include <errno.h>
302 #include <stdarg.h>
303 #include <sys/utsname.h>
304 #include <sys/param.h>
305 #include <sys/isa_defs.h>
306 #include <sys/wait.h>
307 #include <sys/stat.h>
308
309 #define CW_F_CXX 0x01
310 #define CW_F_SHADOW 0x02
311 #define CW_F_EXEC 0x04
312 #define CW_F_ECHO 0x08
313 #define CW_F_XLATE 0x10
314 #define CW_F_PROG 0x20
315
316 typedef enum cw_compiler {
317 CW_C_CC = 0,
318 CW_C_GCC
319 } cw_compiler_t;
320
321 static const char *cmds[] = {
322 "cc", "CC",
323 "gcc", "g++"
324 };
325
326 static char default_dir[2][MAXPATHLEN] = {
327 DEFAULT_CC_DIR,
328 DEFAULT_GCC_DIR,
329 };
330
331 #define CC(ctx) \
332 (((ctx)->i_flags & CW_F_SHADOW) ? \
333 ((ctx)->i_compiler == CW_C_CC ? CW_C_GCC : CW_C_CC) : \
334 (ctx)->i_compiler)
335
336 #define CIDX(compiler, flags) \
337 ((int)(compiler) << 1) + ((flags) & CW_F_CXX ? 1 : 0)
338
339 typedef enum cw_op {
340 CW_O_NONE = 0,
341 CW_O_PREPROCESS,
342 CW_O_COMPILE,
343 CW_O_LINK
344 } cw_op_t;
345
346 struct aelist {
347 struct ae {
348 struct ae *ae_next;
349 char *ae_arg;
350 } *ael_head, *ael_tail;
351 int ael_argc;
352 };
353
354 typedef struct cw_ictx {
355 cw_compiler_t i_compiler;
356 struct aelist *i_ae;
357 uint32_t i_flags;
358 int i_oldargc;
359 char **i_oldargv;
360 pid_t i_pid;
361 char i_discard[MAXPATHLEN];
362 char *i_stderr;
363 } cw_ictx_t;
364
365 /*
366 * Status values to indicate which Studio compiler and associated
367 * flags are being used.
368 */
369 #define M32 0x01 /* -m32 - only on Studio 12 */
370 #define M64 0x02 /* -m64 - only on Studio 12 */
371 #define SS11 0x100 /* Studio 11 */
372 #define SS12 0x200 /* Studio 12 */
373
374 #define TRANS_ENTRY 5
375 /*
376 * Translation table definition for the -xarch= flag. The "x_arg"
377 * value is translated into the appropriate gcc flags according
378 * to the values in x_trans[n]. The x_flags indicates what compiler
379 * is being used and what flags have been set via the use of
380 * "x_arg".
381 */
382 typedef struct xarch_table {
383 char *x_arg;
384 int x_flags;
385 char *x_trans[TRANS_ENTRY];
386 } xarch_table_t;
387
388 /*
389 * The translation table for the -xarch= flag used in the Studio compilers.
390 */
391 static const xarch_table_t xtbl[] = {
392 #if defined(CW_TARGET_i386)
393 { "generic", SS11 },
394 { "generic64", (SS11|M64), { "-m64", "-mtune=opteron" } },
395 { "amd64", (SS11|M64), { "-m64", "-mtune=opteron" } },
396 { "386", SS11, { "-march=i386" } },
397 { "pentium_pro", SS11, { "-march=pentiumpro" } },
398 { "sse", SS11, { "-msse", "-mfpmath=sse" } },
399 { "sse2", SS11, { "-msse2", "-mfpmath=sse" } },
400 #elif defined(CW_TARGET_sparc)
401 { "generic", (SS11|M32), { "-m32", "-mcpu=v8" } },
402 { "generic64", (SS11|M64), { "-m64", "-mcpu=v9" } },
403 { "v8", (SS11|M32), { "-m32", "-mcpu=v8", "-mno-v8plus" } },
404 { "v8plus", (SS11|M32), { "-m32", "-mcpu=v9", "-mv8plus" } },
405 { "v8plusa", (SS11|M32), { "-m32", "-mcpu=ultrasparc", "-mv8plus",
406 "-mvis" } },
407 { "v8plusb", (SS11|M32), { "-m32", "-mcpu=ultrasparc3", "-mv8plus",
408 "-mvis" } },
409 { "v9", (SS11|M64), { "-m64", "-mcpu=v9" } },
410 { "v9a", (SS11|M64), { "-m64", "-mcpu=ultrasparc", "-mvis" } },
411 { "v9b", (SS11|M64), { "-m64", "-mcpu=ultrasparc3", "-mvis" } },
412 { "sparc", SS12, { "-mcpu=v9", "-mv8plus" } },
413 { "sparcvis", SS12, { "-mcpu=ultrasparc", "-mvis" } },
414 { "sparcvis2", SS12, { "-mcpu=ultrasparc3", "-mvis" } }
415 #elif defined(CW_TARGET_arm)
416 { "generic", SS12, { "-march=armv6", "-mfpu=vfp", "-mhard-float" } }
417 #else
418 #error Unknown CW_TARGET
419 #endif
420 };
421
422 static int xtbl_size = sizeof (xtbl) / sizeof (xarch_table_t);
423
424 static const char *progname;
425
426 static const char *xchip_tbl[] = {
427 #if defined(CW_TARGET_i386)
428 "386", "-mtune=i386", NULL,
429 "486", "-mtune=i486", NULL,
430 "pentium", "-mtune=pentium", NULL,
431 "pentium_pro", "-mtune=pentiumpro", NULL,
432 #elif defined(CW_TARGET_sparc)
433 "super", "-mtune=supersparc", NULL,
434 "ultra", "-mtune=ultrasparc", NULL,
435 "ultra3", "-mtune=ultrasparc3", NULL,
436 #endif
437 NULL, NULL
438 };
439
440 static const char *xcode_tbl[] = {
441 #if defined(CW_TARGET_sparc)
442 "abs32", "-fno-pic", "-mcmodel=medlow", NULL,
443 "abs44", "-fno-pic", "-mcmodel=medmid", NULL,
444 "abs64", "-fno-pic", "-mcmodel=medany", NULL,
445 "pic13", "-fpic", NULL,
446 "pic32", "-fPIC", NULL,
447 #endif
448 NULL, NULL
449 };
450
451 static const char *xtarget_tbl[] = {
452 #if defined(CW_TARGET_i386)
453 "pentium_pro", "-march=pentiumpro", NULL,
454 #endif /* i386 */
455 NULL, NULL
456 };
457
458 static const char *xregs_tbl[] = {
459 #if defined(CW_TARGET_sparc)
460 "appl", "-mapp-regs", NULL,
461 "no%appl", "-mno-app-regs", NULL,
462 "float", "-mfpu", NULL,
463 "no%float", "-mno-fpu", NULL,
464 #endif /* sparc */
465 NULL, NULL
466 };
467
468 static void
469 nomem(void)
470 {
471 (void) fprintf(stderr, "%s: error: out of memory\n", progname);
472 exit(1);
473 }
474
475 static void
476 cw_perror(const char *fmt, ...)
477 {
478 va_list ap;
479 int saved_errno = errno;
480
481 (void) fprintf(stderr, "%s: error: ", progname);
482
483 va_start(ap, fmt);
484 (void) vfprintf(stderr, fmt, ap);
485 va_end(ap);
486
487 (void) fprintf(stderr, " (%s)\n", strerror(saved_errno));
488 }
489
490 static void
491 newae(struct aelist *ael, const char *arg)
492 {
493 struct ae *ae;
494
495 if ((ae = calloc(sizeof (*ae), 1)) == NULL)
496 nomem();
497 ae->ae_arg = strdup(arg);
498 if (ael->ael_tail == NULL)
499 ael->ael_head = ae;
500 else
501 ael->ael_tail->ae_next = ae;
502 ael->ael_tail = ae;
503 ael->ael_argc++;
504 }
505
506 static cw_ictx_t *
507 newictx(void)
508 {
509 cw_ictx_t *ctx = calloc(sizeof (cw_ictx_t), 1);
510 if (ctx)
511 if ((ctx->i_ae = calloc(sizeof (struct aelist), 1)) == NULL) {
512 free(ctx);
513 return (NULL);
514 }
515
516 return (ctx);
517 }
518
519 static void
520 error(const char *arg)
521 {
522 (void) fprintf(stderr,
523 "%s: error: mapping failed at or near arg '%s'\n", progname, arg);
524 exit(2);
525 }
526
527 /*
528 * Add the current favourite set of warnings to the gcc invocation.
529 */
530 static void
531 warnings(struct aelist *h)
532 {
533 static int warningsonce;
534
535 if (warningsonce++)
536 return;
537
538 /*
539 * Enable as many warnings as exist, then disable those that we never
540 * ever want.
541 */
542 newae(h, "-Wall");
543 newae(h, "-Wextra");
544 }
545
546 static void
547 optim_disable(struct aelist *h, int level)
548 {
549 if (level >= 2) {
550 newae(h, "-fno-strict-aliasing");
551 newae(h, "-fno-unit-at-a-time");
552 newae(h, "-fno-optimize-sibling-calls");
553 }
554 }
555
556 /* ARGSUSED */
557 static void
558 Xamode(struct aelist *h)
559 {
560 }
561
562 static void
563 Xcmode(struct aelist *h)
564 {
565 static int xconce;
566
567 if (xconce++)
568 return;
569
570 newae(h, "-ansi");
571 newae(h, "-pedantic-errors");
572 }
573
574 static void
575 Xsmode(struct aelist *h)
576 {
577 static int xsonce;
578
579 if (xsonce++)
580 return;
581
582 newae(h, "-traditional");
583 newae(h, "-traditional-cpp");
584 }
585
586 static void
587 usage()
588 {
589 (void) fprintf(stderr,
590 "usage: %s { -_cc | -_gcc | -_CC | -_g++ } [ -_compiler | ... ]\n",
591 progname);
592 exit(2);
593 }
594
595 static int
596 xlate_xtb(struct aelist *h, const char *xarg)
597 {
598 int i, j;
599
600 for (i = 0; i < xtbl_size; i++) {
601 if (strcmp(xtbl[i].x_arg, xarg) == 0)
602 break;
603 }
604
605 /*
606 * At the end of the table and so no matching "arg" entry
607 * found and so this must be a bad -xarch= flag.
608 */
609 if (i == xtbl_size)
610 error(xarg);
611
612 for (j = 0; j < TRANS_ENTRY; j++) {
613 if (xtbl[i].x_trans[j] != NULL)
614 newae(h, xtbl[i].x_trans[j]);
615 else
616 break;
617 }
618 return (xtbl[i].x_flags);
619
620 }
621
622 static void
623 xlate(struct aelist *h, const char *xarg, const char **table)
624 {
625 while (*table != NULL && strcmp(xarg, *table) != 0) {
626 while (*table != NULL)
627 table++;
628 table++;
629 }
630
631 if (*table == NULL)
632 error(xarg);
633
634 table++;
635
636 while (*table != NULL) {
637 newae(h, *table);
638 table++;
639 }
640 }
641
642 static void
643 do_gcc(cw_ictx_t *ctx)
644 {
645 int c;
646 int pic = 0, nolibc = 0;
647 int in_output = 0, seen_o = 0, c_files = 0;
648 cw_op_t op = CW_O_LINK;
649 char *model = NULL;
650 int mflag = 0;
651
652 if (ctx->i_flags & CW_F_PROG) {
653 newae(ctx->i_ae, "--version");
654 return;
655 }
656
657 newae(ctx->i_ae, "-fident");
658 newae(ctx->i_ae, "-finline");
659 newae(ctx->i_ae, "-fno-inline-functions");
660 newae(ctx->i_ae, "-fno-builtin");
661 newae(ctx->i_ae, "-fno-asm");
662 newae(ctx->i_ae, "-fdiagnostics-show-option");
663 newae(ctx->i_ae, "-nodefaultlibs");
664
665 #if defined(CW_TARGET_sparc)
666 /*
667 * The SPARC ldd and std instructions require 8-byte alignment of
668 * their address operand. gcc correctly uses them only when the
669 * ABI requires 8-byte alignment; unfortunately we have a number of
670 * pieces of buggy code that doesn't conform to the ABI. This
671 * flag makes gcc work more like Studio with -xmemalign=4.
672 */
673 newae(ctx->i_ae, "-mno-integer-ldd-std");
674 #endif
675
676 /*
677 * This is needed because 'u' is defined
678 * under a conditional on 'sun'. Should
679 * probably just remove the conditional,
680 * or make it be dependent on '__sun'.
681 *
682 * -Dunix is also missing in enhanced ANSI mode
683 */
684 newae(ctx->i_ae, "-D__sun");
685
686 /*
687 * Walk the argument list, translating as we go ..
688 */
689
690 while (--ctx->i_oldargc > 0) {
691 char *arg = *++ctx->i_oldargv;
692 size_t arglen = strlen(arg);
693
694 if (*arg == '-') {
695 arglen--;
696 } else {
697 /*
698 * Discard inline files that gcc doesn't grok
699 */
700 if (!in_output && arglen > 3 &&
701 strcmp(arg + arglen - 3, ".il") == 0)
702 continue;
703
704 if (!in_output && arglen > 2 &&
705 arg[arglen - 2] == '.' &&
706 (arg[arglen - 1] == 'S' || arg[arglen - 1] == 's' ||
707 arg[arglen - 1] == 'c' || arg[arglen - 1] == 'i'))
708 c_files++;
709
710 /*
711 * Otherwise, filenames and partial arguments
712 * are passed through for gcc to chew on. However,
713 * output is always discarded for the secondary
714 * compiler.
715 */
716 if ((ctx->i_flags & CW_F_SHADOW) && in_output)
717 newae(ctx->i_ae, ctx->i_discard);
718 else
719 newae(ctx->i_ae, arg);
720 in_output = 0;
721 continue;
722 }
723
724 if (ctx->i_flags & CW_F_CXX) {
725 if (strncmp(arg, "-compat=", 8) == 0) {
726 /* discard -compat=4 and -compat=5 */
727 continue;
728 }
729 if (strcmp(arg, "-Qoption") == 0) {
730 /* discard -Qoption and its two arguments */
731 if (ctx->i_oldargc < 3)
732 error(arg);
733 ctx->i_oldargc -= 2;
734 ctx->i_oldargv += 2;
735 continue;
736 }
737 if (strcmp(arg, "-xwe") == 0) {
738 /* turn warnings into errors */
739 newae(ctx->i_ae, "-Werror");
740 continue;
741 }
742 if (strcmp(arg, "-noex") == 0) {
743 /* no exceptions */
744 newae(ctx->i_ae, "-fno-exceptions");
745 /* no run time type descriptor information */
746 newae(ctx->i_ae, "-fno-rtti");
747 continue;
748 }
749 if (strcmp(arg, "-pic") == 0) {
750 newae(ctx->i_ae, "-fpic");
751 pic = 1;
752 continue;
753 }
754 if (strcmp(arg, "-PIC") == 0) {
755 newae(ctx->i_ae, "-fPIC");
756 pic = 1;
757 continue;
758 }
759 if (strcmp(arg, "-norunpath") == 0) {
760 /* gcc has no corresponding option */
761 continue;
762 }
763 if (strcmp(arg, "-nolib") == 0) {
764 /* -nodefaultlibs is on by default */
765 nolibc = 1;
766 continue;
767 }
768 #if defined(CW_TARGET_sparc)
769 if (strcmp(arg, "-cg92") == 0) {
770 mflag |= xlate_xtb(ctx->i_ae, "v8");
771 xlate(ctx->i_ae, "super", xchip_tbl);
772 continue;
773 }
774 #endif
775 }
776
777 switch ((c = arg[1])) {
778 case '_':
779 if (strcmp(arg, "-_noecho") == 0)
780 ctx->i_flags &= ~CW_F_ECHO;
781 else if (strncmp(arg, "-_cc=", 5) == 0 ||
782 strncmp(arg, "-_CC=", 5) == 0)
783 /* EMPTY */;
784 else if (strncmp(arg, "-_gcc=", 6) == 0 ||
785 strncmp(arg, "-_g++=", 6) == 0)
786 newae(ctx->i_ae, arg + 6);
787 else
788 error(arg);
789 break;
790 case '#':
791 if (arglen == 1) {
792 newae(ctx->i_ae, "-v");
793 break;
794 }
795 error(arg);
796 break;
797 case 'g':
798 newae(ctx->i_ae, "-gdwarf-2");
799 break;
800 case 'E':
801 if (arglen == 1) {
802 newae(ctx->i_ae, "-xc");
803 newae(ctx->i_ae, arg);
804 op = CW_O_PREPROCESS;
805 nolibc = 1;
806 break;
807 }
808 error(arg);
809 break;
810 case 'c':
811 case 'S':
812 if (arglen == 1) {
813 op = CW_O_COMPILE;
814 nolibc = 1;
815 }
816 /* FALLTHROUGH */
817 case 'C':
818 case 'H':
819 case 'p':
820 if (arglen == 1) {
821 newae(ctx->i_ae, arg);
822 break;
823 }
824 error(arg);
825 break;
826 case 'A':
827 case 'h':
828 case 'I':
829 case 'i':
830 case 'L':
831 case 'l':
832 case 'R':
833 case 'U':
834 case 'u':
835 case 'w':
836 newae(ctx->i_ae, arg);
837 break;
838 case 'o':
839 seen_o = 1;
840 if (arglen == 1) {
841 in_output = 1;
842 newae(ctx->i_ae, arg);
843 } else if (ctx->i_flags & CW_F_SHADOW) {
844 newae(ctx->i_ae, "-o");
845 newae(ctx->i_ae, ctx->i_discard);
846 } else {
847 newae(ctx->i_ae, arg);
848 }
849 break;
850 case 'D':
851 newae(ctx->i_ae, arg);
852 /*
853 * XXX Clearly a hack ... do we need _KADB too?
854 */
855 if (strcmp(arg, "-D_KERNEL") == 0 ||
856 strcmp(arg, "-D_BOOT") == 0)
857 newae(ctx->i_ae, "-ffreestanding");
858 break;
859 case 'd':
860 if (arglen == 2) {
861 if (strcmp(arg, "-dy") == 0) {
862 newae(ctx->i_ae, "-Wl,-dy");
863 break;
864 }
865 if (strcmp(arg, "-dn") == 0) {
866 newae(ctx->i_ae, "-Wl,-dn");
867 break;
868 }
869 }
870 if (strcmp(arg, "-dalign") == 0) {
871 /*
872 * -dalign forces alignment in some cases;
873 * gcc does not need any flag to do this.
874 */
875 break;
876 }
877 error(arg);
878 break;
879 case 'e':
880 if (strcmp(arg,
881 "-erroff=E_EMPTY_TRANSLATION_UNIT") == 0) {
882 /*
883 * Accept but ignore this -- gcc doesn't
884 * seem to complain about empty translation
885 * units
886 */
887 break;
888 }
889 /* XX64 -- ignore all -erroff= options, for now */
890 if (strncmp(arg, "-erroff=", 8) == 0)
891 break;
892 if (strcmp(arg, "-errtags=yes") == 0) {
893 warnings(ctx->i_ae);
894 break;
895 }
896 if (strcmp(arg, "-errwarn=%all") == 0) {
897 newae(ctx->i_ae, "-Werror");
898 break;
899 }
900 error(arg);
901 break;
902 case 'f':
903 if (strcmp(arg, "-flags") == 0) {
904 newae(ctx->i_ae, "--help");
905 break;
906 }
907 if (strncmp(arg, "-features=zla", 13) == 0) {
908 /*
909 * Accept but ignore this -- gcc allows
910 * zero length arrays.
911 */
912 break;
913 }
914 error(arg);
915 break;
916 case 'G':
917 newae(ctx->i_ae, "-shared");
918 nolibc = 1;
919 break;
920 case 'k':
921 if (strcmp(arg, "-keeptmp") == 0) {
922 newae(ctx->i_ae, "-save-temps");
923 break;
924 }
925 error(arg);
926 break;
927 case 'K':
928 if (arglen == 1) {
929 if ((arg = *++ctx->i_oldargv) == NULL ||
930 *arg == '\0')
931 error("-K");
932 ctx->i_oldargc--;
933 } else {
934 arg += 2;
935 }
936 if (strcmp(arg, "pic") == 0) {
937 newae(ctx->i_ae, "-fpic");
938 pic = 1;
939 break;
940 }
941 if (strcmp(arg, "PIC") == 0) {
942 newae(ctx->i_ae, "-fPIC");
943 pic = 1;
944 break;
945 }
946 error("-K");
947 break;
948 case 'm':
949 if (strcmp(arg, "-mt") == 0) {
950 newae(ctx->i_ae, "-D_REENTRANT");
951 break;
952 }
953 if (strcmp(arg, "-m64") == 0) {
954 newae(ctx->i_ae, "-m64");
955 #if defined(CW_TARGET_i386)
956 newae(ctx->i_ae, "-mtune=opteron");
957 #endif
958 mflag |= M64;
959 break;
960 }
961 if (strcmp(arg, "-m32") == 0) {
962 newae(ctx->i_ae, "-m32");
963 mflag |= M32;
964 break;
965 }
966 error(arg);
967 break;
968 case 'B': /* linker options */
969 case 'M':
970 case 'z':
971 {
972 char *opt;
973 size_t len;
974 char *s;
975
976 if (arglen == 1) {
977 opt = *++ctx->i_oldargv;
978 if (opt == NULL || *opt == '\0')
979 error(arg);
980 ctx->i_oldargc--;
981 } else {
982 opt = arg + 2;
983 }
984 len = strlen(opt) + 7;
985 if ((s = malloc(len)) == NULL)
986 nomem();
987 (void) snprintf(s, len, "-Wl,-%c%s", c, opt);
988 newae(ctx->i_ae, s);
989 free(s);
990 }
991 break;
992 case 'n':
993 if (strcmp(arg, "-noqueue") == 0) {
994 /*
995 * Horrid license server stuff - n/a
996 */
997 break;
998 }
999 error(arg);
1000 break;
1001 case 'O':
1002 if (arglen == 1) {
1003 newae(ctx->i_ae, "-O");
1004 break;
1005 }
1006 error(arg);
1007 break;
1008 case 'P':
1009 /*
1010 * We could do '-E -o filename.i', but that's hard,
1011 * and we don't need it for the case that's triggering
1012 * this addition. We'll require the user to specify
1013 * -o in the Makefile. If they don't they'll find out
1014 * in a hurry.
1015 */
1016 newae(ctx->i_ae, "-E");
1017 op = CW_O_PREPROCESS;
1018 nolibc = 1;
1019 break;
1020 case 'q':
1021 if (strcmp(arg, "-qp") == 0) {
1022 newae(ctx->i_ae, "-p");
1023 break;
1024 }
1025 error(arg);
1026 break;
1027 case 's':
1028 if (arglen == 1) {
1029 newae(ctx->i_ae, "-Wl,-s");
1030 break;
1031 }
1032 error(arg);
1033 break;
1034 case 't':
1035 if (arglen == 1) {
1036 newae(ctx->i_ae, "-Wl,-t");
1037 break;
1038 }
1039 error(arg);
1040 break;
1041 case 'V':
1042 if (arglen == 1) {
1043 ctx->i_flags &= ~CW_F_ECHO;
1044 newae(ctx->i_ae, "--version");
1045 break;
1046 }
1047 error(arg);
1048 break;
1049 case 'v':
1050 if (arglen == 1) {
1051 warnings(ctx->i_ae);
1052 break;
1053 }
1054 error(arg);
1055 break;
1056 case 'W':
1057 if (strncmp(arg, "-Wp,-xc99", 9) == 0) {
1058 /*
1059 * gcc's preprocessor will accept c99
1060 * regardless, so accept and ignore.
1061 */
1062 break;
1063 }
1064 if (strncmp(arg, "-Wa,", 4) == 0 ||
1065 strncmp(arg, "-Wp,", 4) == 0 ||
1066 strncmp(arg, "-Wl,", 4) == 0) {
1067 newae(ctx->i_ae, arg);
1068 break;
1069 }
1070 if (strcmp(arg, "-W0,-xc99=pragma") == 0) {
1071 /* (undocumented) enables _Pragma */
1072 break;
1073 }
1074 if (strcmp(arg, "-W0,-xc99=%none") == 0) {
1075 /*
1076 * This is a polite way of saying
1077 * "no c99 constructs allowed!"
1078 * For now, just accept and ignore this.
1079 */
1080 break;
1081 }
1082 if (strcmp(arg, "-W0,-noglobal") == 0 ||
1083 strcmp(arg, "-W0,-xglobalstatic") == 0) {
1084 /*
1085 * gcc doesn't prefix local symbols
1086 * in debug mode, so this is not needed.
1087 */
1088 break;
1089 }
1090 if (strcmp(arg, "-W0,-Lt") == 0) {
1091 /*
1092 * Generate tests at the top of loops.
1093 * There is no direct gcc equivalent, ignore.
1094 */
1095 break;
1096 }
1097 if (strcmp(arg, "-W0,-xdbggen=no%usedonly") == 0) {
1098 newae(ctx->i_ae,
1099 "-fno-eliminate-unused-debug-symbols");
1100 newae(ctx->i_ae,
1101 "-fno-eliminate-unused-debug-types");
1102 break;
1103 }
1104 if (strcmp(arg, "-W2,-xwrap_int") == 0) {
1105 /*
1106 * Use the legacy behaviour (pre-SS11)
1107 * for integer wrapping.
1108 * gcc does not need this.
1109 */
1110 break;
1111 }
1112 if (strcmp(arg, "-W2,-Rcond_elim") == 0) {
1113 /*
1114 * Elimination and expansion of conditionals;
1115 * gcc has no direct equivalent.
1116 */
1117 break;
1118 }
1119 if (strcmp(arg, "-Wd,-xsafe=unboundsym") == 0) {
1120 /*
1121 * Prevents optimizing away checks for
1122 * unbound weak symbol addresses. gcc does
1123 * not do this, so it's not needed.
1124 */
1125 break;
1126 }
1127 if (strncmp(arg, "-Wc,-xcode=", 11) == 0) {
1128 xlate(ctx->i_ae, arg + 11, xcode_tbl);
1129 if (strncmp(arg + 11, "pic", 3) == 0)
1130 pic = 1;
1131 break;
1132 }
1133 if (strncmp(arg, "-Wc,-Qiselect", 13) == 0) {
1134 /*
1135 * Prevents insertion of register symbols.
1136 * gcc doesn't do this, so ignore it.
1137 */
1138 break;
1139 }
1140 if (strcmp(arg, "-Wc,-Qassembler-ounrefsym=0") == 0) {
1141 /*
1142 * Prevents optimizing away of static variables.
1143 * gcc does not do this, so it's not needed.
1144 */
1145 break;
1146 }
1147 #if defined(CW_TARGET_i386)
1148 if (strcmp(arg, "-Wu,-xmodel=kernel") == 0) {
1149 newae(ctx->i_ae, "-ffreestanding");
1150 newae(ctx->i_ae, "-mno-red-zone");
1151 model = "-mcmodel=kernel";
1152 nolibc = 1;
1153 break;
1154 }
1155 if (strcmp(arg, "-Wu,-save_args") == 0) {
1156 newae(ctx->i_ae, "-msave-args");
1157 break;
1158 }
1159 #endif /* i386 */
1160 error(arg);
1161 break;
1162 case 'X':
1163 if (strcmp(arg, "-Xa") == 0 ||
1164 strcmp(arg, "-Xt") == 0) {
1165 Xamode(ctx->i_ae);
1166 break;
1167 }
1168 if (strcmp(arg, "-Xc") == 0) {
1169 Xcmode(ctx->i_ae);
1170 break;
1171 }
1172 if (strcmp(arg, "-Xs") == 0) {
1173 Xsmode(ctx->i_ae);
1174 break;
1175 }
1176 error(arg);
1177 break;
1178 case 'x':
1179 if (arglen == 1)
1180 error(arg);
1181 switch (arg[2]) {
1182 #if defined(CW_TARGET_i386)
1183 case '3':
1184 if (strcmp(arg, "-x386") == 0) {
1185 newae(ctx->i_ae, "-march=i386");
1186 break;
1187 }
1188 error(arg);
1189 break;
1190 case '4':
1191 if (strcmp(arg, "-x486") == 0) {
1192 newae(ctx->i_ae, "-march=i486");
1193 break;
1194 }
1195 error(arg);
1196 break;
1197 #endif /* i386 */
1198 case 'a':
1199 if (strncmp(arg, "-xarch=", 7) == 0) {
1200 mflag |= xlate_xtb(ctx->i_ae, arg + 7);
1201 break;
1202 }
1203 error(arg);
1204 break;
1205 case 'b':
1206 if (strncmp(arg, "-xbuiltin=", 10) == 0) {
1207 if (strcmp(arg + 10, "%all"))
1208 newae(ctx->i_ae, "-fbuiltin");
1209 break;
1210 }
1211 error(arg);
1212 break;
1213 case 'C':
1214 /* Accept C++ style comments -- ignore */
1215 if (strcmp(arg, "-xCC") == 0)
1216 break;
1217 error(arg);
1218 break;
1219 case 'c':
1220 if (strncmp(arg, "-xc99=%all", 10) == 0) {
1221 newae(ctx->i_ae, "-std=gnu99");
1222 break;
1223 }
1224 if (strncmp(arg, "-xc99=%none", 11) == 0) {
1225 newae(ctx->i_ae, "-std=gnu89");
1226 break;
1227 }
1228 if (strncmp(arg, "-xchip=", 7) == 0) {
1229 xlate(ctx->i_ae, arg + 7, xchip_tbl);
1230 break;
1231 }
1232 if (strncmp(arg, "-xcode=", 7) == 0) {
1233 xlate(ctx->i_ae, arg + 7, xcode_tbl);
1234 if (strncmp(arg + 7, "pic", 3) == 0)
1235 pic = 1;
1236 break;
1237 }
1238 if (strncmp(arg, "-xcache=", 8) == 0)
1239 break;
1240 if (strncmp(arg, "-xcrossfile", 11) == 0)
1241 break;
1242 error(arg);
1243 break;
1244 case 'd':
1245 if (strcmp(arg, "-xdepend") == 0)
1246 break;
1247 if (strncmp(arg, "-xdebugformat=", 14) == 0)
1248 break;
1249 error(arg);
1250 break;
1251 case 'F':
1252 /*
1253 * Compile for mapfile reordering, or unused
1254 * section elimination, syntax can be -xF or
1255 * more complex, like -xF=%all -- ignore.
1256 */
1257 if (strncmp(arg, "-xF", 3) == 0)
1258 break;
1259 error(arg);
1260 break;
1261 case 'i':
1262 if (strncmp(arg, "-xinline", 8) == 0)
1263 /* No inlining; ignore */
1264 break;
1265 if (strcmp(arg, "-xildon") == 0 ||
1266 strcmp(arg, "-xildoff") == 0)
1267 /* No incremental linking; ignore */
1268 break;
1269 error(arg);
1270 break;
1271 #if defined(CW_TARGET_i386)
1272 case 'm':
1273 if (strcmp(arg, "-xmodel=kernel") == 0) {
1274 newae(ctx->i_ae, "-ffreestanding");
1275 newae(ctx->i_ae, "-mno-red-zone");
1276 model = "-mcmodel=kernel";
1277 nolibc = 1;
1278 break;
1279 }
1280 error(arg);
1281 break;
1282 #endif /* i386 */
1283 case 'M':
1284 if (strcmp(arg, "-xM") == 0) {
1285 newae(ctx->i_ae, "-M");
1286 break;
1287 }
1288 if (strcmp(arg, "-xM1") == 0) {
1289 newae(ctx->i_ae, "-MM");
1290 break;
1291 }
1292 error(arg);
1293 break;
1294 case 'n':
1295 if (strcmp(arg, "-xnolib") == 0) {
1296 nolibc = 1;
1297 break;
1298 }
1299 error(arg);
1300 break;
1301 case 'O':
1302 if (strncmp(arg, "-xO", 3) == 0) {
1303 size_t len = strlen(arg);
1304 char *s;
1305 int c = *(arg + 3);
1306 int level;
1307
1308 if (len != 4 || !isdigit(c))
1309 error(arg);
1310
1311 if ((s = malloc(len)) == NULL)
1312 nomem();
1313
1314 level = atoi(arg + 3);
1315 if (level > 5)
1316 error(arg);
1317 if (level >= 2) {
1318 /*
1319 * For gcc-3.4.x at -O2 we
1320 * need to disable optimizations
1321 * that break ON.
1322 */
1323 optim_disable(ctx->i_ae, level);
1324 /*
1325 * limit -xO3 to -O2 as well.
1326 */
1327 level = 2;
1328 }
1329 (void) snprintf(s, len, "-O%d", level);
1330 newae(ctx->i_ae, s);
1331 free(s);
1332 break;
1333 }
1334 error(arg);
1335 break;
1336 case 'p':
1337 if (strcmp(arg, "-xpentium") == 0) {
1338 newae(ctx->i_ae, "-march=pentium");
1339 break;
1340 }
1341 if (strcmp(arg, "-xpg") == 0) {
1342 newae(ctx->i_ae, "-pg");
1343 break;
1344 }
1345 error(arg);
1346 break;
1347 case 'r':
1348 if (strncmp(arg, "-xregs=", 7) == 0) {
1349 xlate(ctx->i_ae, arg + 7, xregs_tbl);
1350 break;
1351 }
1352 error(arg);
1353 break;
1354 case 's':
1355 if (strcmp(arg, "-xs") == 0 ||
1356 strcmp(arg, "-xspace") == 0 ||
1357 strcmp(arg, "-xstrconst") == 0)
1358 break;
1359 error(arg);
1360 break;
1361 case 't':
1362 if (strcmp(arg, "-xtransition") == 0) {
1363 newae(ctx->i_ae, "-Wtransition");
1364 break;
1365 }
1366 if (strcmp(arg, "-xtrigraphs=yes") == 0) {
1367 newae(ctx->i_ae, "-trigraphs");
1368 break;
1369 }
1370 if (strcmp(arg, "-xtrigraphs=no") == 0) {
1371 newae(ctx->i_ae, "-notrigraphs");
1372 break;
1373 }
1374 if (strncmp(arg, "-xtarget=", 9) == 0) {
1375 xlate(ctx->i_ae, arg + 9, xtarget_tbl);
1376 break;
1377 }
1378 error(arg);
1379 break;
1380 case 'e':
1381 case 'h':
1382 case 'l':
1383 default:
1384 error(arg);
1385 break;
1386 }
1387 break;
1388 case 'Y':
1389 if (arglen == 1) {
1390 if ((arg = *++ctx->i_oldargv) == NULL ||
1391 *arg == '\0')
1392 error("-Y");
1393 ctx->i_oldargc--;
1394 arglen = strlen(arg + 1);
1395 } else {
1396 arg += 2;
1397 }
1398 /* Just ignore -YS,... for now */
1399 if (strncmp(arg, "S,", 2) == 0)
1400 break;
1401 if (strncmp(arg, "l,", 2) == 0) {
1402 char *s = strdup(arg);
1403 s[0] = '-';
1404 s[1] = 'B';
1405 newae(ctx->i_ae, s);
1406 free(s);
1407 break;
1408 }
1409 if (strncmp(arg, "I,", 2) == 0) {
1410 char *s = strdup(arg);
1411 s[0] = '-';
1412 s[1] = 'I';
1413 newae(ctx->i_ae, "-nostdinc");
1414 newae(ctx->i_ae, s);
1415 free(s);
1416 break;
1417 }
1418 error(arg);
1419 break;
1420 case 'Q':
1421 /*
1422 * We could map -Qy into -Wl,-Qy etc.
1423 */
1424 default:
1425 error(arg);
1426 break;
1427 }
1428 }
1429
1430 if (c_files > 1 && (ctx->i_flags & CW_F_SHADOW) &&
1431 op != CW_O_PREPROCESS) {
1432 (void) fprintf(stderr, "%s: error: multiple source files are "
1433 "allowed only with -E or -P\n", progname);
1434 exit(2);
1435 }
1436
1437 /*
1438 * Make sure that we do not have any unintended interactions between
1439 * the xarch options passed in and the version of the Studio compiler
1440 * used.
1441 */
1442 if ((mflag & (SS11|SS12)) == (SS11|SS12)) {
1443 (void) fprintf(stderr,
1444 "Conflicting \"-xarch=\" flags (both Studio 11 and 12)\n");
1445 exit(2);
1446 }
1447
1448 switch (mflag) {
1449 case 0:
1450 /* FALLTHROUGH */
1451 case M32:
1452 #if defined(CW_TARGET_sparc)
1453 /*
1454 * Only -m32 is defined and so put in the missing xarch
1455 * translation.
1456 */
1457 newae(ctx->i_ae, "-mcpu=v8");
1458 newae(ctx->i_ae, "-mno-v8plus");
1459 #endif
1460 break;
1461 case M64:
1462 #if defined(CW_TARGET_sparc)
1463 /*
1464 * Only -m64 is defined and so put in the missing xarch
1465 * translation.
1466 */
1467 newae(ctx->i_ae, "-mcpu=v9");
1468 #endif
1469 break;
1470 case SS12:
1471 #if defined(CW_TARGET_sparc)
1472 /* no -m32/-m64 flag used - this is an error for sparc builds */
1473 (void) fprintf(stderr, "No -m32/-m64 flag defined\n");
1474 exit(2);
1475 #endif
1476 break;
1477 case SS11:
1478 /* FALLTHROUGH */
1479 case (SS11|M32):
1480 case (SS11|M64):
1481 break;
1482 case (SS12|M32):
1483 #if defined(CW_TARGET_sparc)
1484 /*
1485 * Need to add in further 32 bit options because with SS12
1486 * the xarch=sparcvis option can be applied to 32 or 64
1487 * bit, and so the translatation table (xtbl) cannot handle
1488 * that.
1489 */
1490 newae(ctx->i_ae, "-mv8plus");
1491 #endif
1492 break;
1493 case (SS12|M64):
1494 break;
1495 default:
1496 (void) fprintf(stderr,
1497 "Incompatible -xarch= and/or -m32/-m64 options used.\n");
1498 exit(2);
1499 }
1500 if (op == CW_O_LINK && (ctx->i_flags & CW_F_SHADOW))
1501 exit(0);
1502
1503 if (model && !pic)
1504 newae(ctx->i_ae, model);
1505 if (!nolibc)
1506 newae(ctx->i_ae, "-lc");
1507 if (!seen_o && (ctx->i_flags & CW_F_SHADOW)) {
1508 newae(ctx->i_ae, "-o");
1509 newae(ctx->i_ae, ctx->i_discard);
1510 }
1511 }
1512
1513 static void
1514 do_cc(cw_ictx_t *ctx)
1515 {
1516 int in_output = 0, seen_o = 0;
1517 cw_op_t op = CW_O_LINK;
1518
1519 if (ctx->i_flags & CW_F_PROG) {
1520 newae(ctx->i_ae, "-V");
1521 return;
1522 }
1523
1524 while (--ctx->i_oldargc > 0) {
1525 char *arg = *++ctx->i_oldargv;
1526
1527 if (*arg != '-') {
1528 if (in_output == 0 || !(ctx->i_flags & CW_F_SHADOW)) {
1529 newae(ctx->i_ae, arg);
1530 } else {
1531 in_output = 0;
1532 newae(ctx->i_ae, ctx->i_discard);
1533 }
1534 continue;
1535 }
1536 switch (*(arg + 1)) {
1537 case '_':
1538 if (strcmp(arg, "-_noecho") == 0) {
1539 ctx->i_flags &= ~CW_F_ECHO;
1540 } else if (strncmp(arg, "-_cc=", 5) == 0 ||
1541 strncmp(arg, "-_CC=", 5) == 0) {
1542 newae(ctx->i_ae, arg + 5);
1543 } else if (strncmp(arg, "-_gcc=", 6) != 0 &&
1544 strncmp(arg, "-_g++=", 6) != 0) {
1545 (void) fprintf(stderr,
1546 "%s: invalid argument '%s'\n", progname,
1547 arg);
1548 exit(2);
1549 }
1550 break;
1551 case 'V':
1552 ctx->i_flags &= ~CW_F_ECHO;
1553 newae(ctx->i_ae, arg);
1554 break;
1555 case 'o':
1556 seen_o = 1;
1557 if (strlen(arg) == 2) {
1558 in_output = 1;
1559 newae(ctx->i_ae, arg);
1560 } else if (ctx->i_flags & CW_F_SHADOW) {
1561 newae(ctx->i_ae, "-o");
1562 newae(ctx->i_ae, ctx->i_discard);
1563 } else {
1564 newae(ctx->i_ae, arg);
1565 }
1566 break;
1567 case 'c':
1568 case 'S':
1569 if (strlen(arg) == 2)
1570 op = CW_O_COMPILE;
1571 newae(ctx->i_ae, arg);
1572 break;
1573 case 'E':
1574 case 'P':
1575 if (strlen(arg) == 2)
1576 op = CW_O_PREPROCESS;
1577 /*FALLTHROUGH*/
1578 default:
1579 newae(ctx->i_ae, arg);
1580 }
1581 }
1582
1583 if ((op == CW_O_LINK || op == CW_O_PREPROCESS) &&
1584 (ctx->i_flags & CW_F_SHADOW))
1585 exit(0);
1586
1587 if (!seen_o && (ctx->i_flags & CW_F_SHADOW)) {
1588 newae(ctx->i_ae, "-o");
1589 newae(ctx->i_ae, ctx->i_discard);
1590 }
1591 }
1592
1593 static void
1594 prepctx(cw_ictx_t *ctx)
1595 {
1596 const char *dir = NULL, *cmd;
1597 char *program = NULL;
1598 size_t len;
1599
1600 switch (CIDX(CC(ctx), ctx->i_flags)) {
1601 case CIDX(CW_C_CC, 0):
1602 if ((program = getenv("CW_" CW_TARGET "_CC")) == NULL)
1603 program = getenv("CW_CC");
1604 if ((dir = getenv("CW_" CW_TARGET "_CC_DIR")) == NULL)
1605 dir = getenv("CW_CC_DIR");
1606 break;
1607 case CIDX(CW_C_CC, CW_F_CXX):
1608 if ((program = getenv("CW_" CW_TARGET "_CPLUSPLUS")) ==
1609 NULL)
1610 program = getenv("CW_CPLUSPLUS");
1611 if ((dir = getenv("CW_" CW_TARGET "_CPLUSPLUS_DIR")) ==
1612 NULL)
1613 dir = getenv("CW_CPLUSPLUS_DIR");
1614 break;
1615 case CIDX(CW_C_GCC, 0):
1616 if ((program = getenv("CW_" CW_TARGET "_GCC")) == NULL)
1617 program = getenv("CW_GCC");
1618 if ((dir = getenv("CW_" CW_TARGET "_GCC_DIR")) == NULL)
1619 dir = getenv("CW_GCC_DIR");
1620 break;
1621 case CIDX(CW_C_GCC, CW_F_CXX):
1622 if ((program = getenv("CW_" CW_TARGET "_GPLUSPLUS")) ==
1623 NULL)
1624 program = getenv("CW_GPLUSPLUS");
1625 if ((dir = getenv("CW_" CW_TARGET "_GPLUSPLUS_DIR")) ==
1626 NULL)
1627 dir = getenv("CW_GPLUSPLUS_DIR");
1628 break;
1629 }
1630
1631 if (program == NULL) {
1632 if (dir == NULL)
1633 dir = default_dir[CC(ctx)];
1634 cmd = cmds[CIDX(CC(ctx), ctx->i_flags)];
1635 len = strlen(dir) + strlen(cmd) + 2;
1636 if ((program = malloc(len)) == NULL)
1637 nomem();
1638 (void) snprintf(program, len, "%s/%s", dir, cmd);
1639 }
1640
1641 newae(ctx->i_ae, program);
1642
1643 if (ctx->i_flags & CW_F_PROG) {
1644 (void) printf("%s: %s\n", (ctx->i_flags & CW_F_SHADOW) ?
1645 "shadow" : "primary", program);
1646 (void) fflush(stdout);
1647 }
1648
1649 if (!(ctx->i_flags & CW_F_XLATE))
1650 return;
1651
1652 switch (CC(ctx)) {
1653 case CW_C_CC:
1654 do_cc(ctx);
1655 break;
1656 case CW_C_GCC:
1657 do_gcc(ctx);
1658 break;
1659 }
1660 }
1661
1662 static int
1663 invoke(cw_ictx_t *ctx)
1664 {
1665 char **newargv;
1666 int ac;
1667 struct ae *a;
1668
1669 if ((newargv = calloc(sizeof (*newargv), ctx->i_ae->ael_argc + 1)) ==
1670 NULL)
1671 nomem();
1672
1673 if (ctx->i_flags & CW_F_ECHO)
1674 (void) fprintf(stderr, "+ ");
1675
1676 for (ac = 0, a = ctx->i_ae->ael_head; a; a = a->ae_next, ac++) {
1677 newargv[ac] = a->ae_arg;
1678 if (ctx->i_flags & CW_F_ECHO)
1679 (void) fprintf(stderr, "%s ", a->ae_arg);
1680 if (a == ctx->i_ae->ael_tail)
1681 break;
1682 }
1683
1684 if (ctx->i_flags & CW_F_ECHO) {
1685 (void) fprintf(stderr, "\n");
1686 (void) fflush(stderr);
1687 }
1688
1689 if (!(ctx->i_flags & CW_F_EXEC))
1690 return (0);
1691
1692 /*
1693 * We must fix up the environment here so that the
1694 * dependency files are not trampled by the shadow compiler.
1695 */
1696 if ((ctx->i_flags & CW_F_SHADOW) &&
1697 (unsetenv("SUNPRO_DEPENDENCIES") != 0 ||
1698 unsetenv("DEPENDENCIES_OUTPUT") != 0)) {
1699 (void) fprintf(stderr, "error: environment setup failed: %s\n",
1700 strerror(errno));
1701 return (-1);
1702 }
1703
1704 (void) execv(newargv[0], newargv);
1705 cw_perror("couldn't run %s", newargv[0]);
1706
1707 return (-1);
1708 }
1709
1710 static int
1711 reap(cw_ictx_t *ctx)
1712 {
1713 int status, ret = 0;
1714 char buf[1024];
1715 struct stat s;
1716
1717 /*
1718 * Only wait for one specific child.
1719 */
1720 if (ctx->i_pid <= 0)
1721 return (-1);
1722
1723 do {
1724 if (waitpid(ctx->i_pid, &status, 0) < 0) {
1725 cw_perror("cannot reap child");
1726 return (-1);
1727 }
1728 if (status != 0) {
1729 if (WIFSIGNALED(status)) {
1730 ret = -WTERMSIG(status);
1731 break;
1732 } else if (WIFEXITED(status)) {
1733 ret = WEXITSTATUS(status);
1734 break;
1735 }
1736 }
1737 } while (!WIFEXITED(status) && !WIFSIGNALED(status));
1738
1739 (void) unlink(ctx->i_discard);
1740
1741 if (stat(ctx->i_stderr, &s) < 0) {
1742 cw_perror("stat failed on child cleanup");
1743 return (-1);
1744 }
1745 if (s.st_size != 0) {
1746 FILE *f;
1747
1748 if ((f = fopen(ctx->i_stderr, "r")) != NULL) {
1749 while (fgets(buf, sizeof (buf), f))
1750 (void) fprintf(stderr, "%s", buf);
1751 (void) fflush(stderr);
1752 (void) fclose(f);
1753 }
1754 }
1755 (void) unlink(ctx->i_stderr);
1756 free(ctx->i_stderr);
1757
1758 /*
1759 * cc returns an error code when given -V; we want that to succeed.
1760 */
1761 if (ctx->i_flags & CW_F_PROG)
1762 return (0);
1763
1764 return (ret);
1765 }
1766
1767 static int
1768 exec_ctx(cw_ictx_t *ctx, int block)
1769 {
1770 char *file;
1771
1772 /*
1773 * To avoid offending cc's sensibilities, the name of its output
1774 * file must end in '.o'.
1775 */
1776 if ((file = tempnam(NULL, ".cw")) == NULL) {
1777 nomem();
1778 return (-1);
1779 }
1780 (void) strlcpy(ctx->i_discard, file, MAXPATHLEN);
1781 (void) strlcat(ctx->i_discard, ".o", MAXPATHLEN);
1782 free(file);
1783
1784 if ((ctx->i_stderr = tempnam(NULL, ".cw")) == NULL) {
1785 nomem();
1786 return (-1);
1787 }
1788
1789 if ((ctx->i_pid = fork()) == 0) {
1790 int fd;
1791
1792 (void) fclose(stderr);
1793 if ((fd = open(ctx->i_stderr, O_WRONLY | O_CREAT | O_EXCL,
1794 0666)) < 0) {
1795 cw_perror("open failed for standard error");
1796 exit(1);
1797 }
1798 if (dup2(fd, 2) < 0) {
1799 cw_perror("dup2 failed for standard error");
1800 exit(1);
1801 }
1802 if (fd != 2)
1803 (void) close(fd);
1804 if (freopen("/dev/fd/2", "w", stderr) == NULL) {
1805 cw_perror("freopen failed for /dev/fd/2");
1806 exit(1);
1807 }
1808 prepctx(ctx);
1809 exit(invoke(ctx));
1810 }
1811
1812 if (ctx->i_pid < 0) {
1813 cw_perror("fork failed");
1814 return (1);
1815 }
1816
1817 if (block)
1818 return (reap(ctx));
1819
1820 return (0);
1821 }
1822
1823 int
1824 main(int argc, char **argv)
1825 {
1826 cw_ictx_t *ctx = newictx();
1827 cw_ictx_t *ctx_shadow = newictx();
1828 const char *dir;
1829 int do_serial, do_shadow;
1830 int ret = 0;
1831
1832 if ((progname = strrchr(argv[0], '/')) == NULL)
1833 progname = argv[0];
1834 else
1835 progname++;
1836
1837 if (ctx == NULL || ctx_shadow == NULL)
1838 nomem();
1839
1840 ctx->i_flags = CW_F_ECHO|CW_F_XLATE;
1841
1842 /*
1843 * Figure out where to get our tools from. This depends on
1844 * the environment variables set at run time.
1845 */
1846 if ((dir = getenv("SPRO_VROOT")) != NULL) {
1847 (void) snprintf(default_dir[CW_C_CC], MAXPATHLEN,
1848 "%s/bin", dir);
1849 } else if ((dir = getenv("SPRO_ROOT")) != NULL) {
1850 (void) snprintf(default_dir[CW_C_CC], MAXPATHLEN,
1851 "%s/SS12/bin", dir);
1852 } else if ((dir = getenv("BUILD_TOOLS")) != NULL) {
1853 (void) snprintf(default_dir[CW_C_CC], MAXPATHLEN,
1854 "%s/SUNWspro/SS12/bin", dir);
1855 }
1856
1857 if ((dir = getenv("GCC_ROOT")) != NULL) {
1858 (void) snprintf(default_dir[CW_C_GCC], MAXPATHLEN,
1859 "%s/bin", dir);
1860 }
1861
1862 do_shadow = (getenv("CW_NO_SHADOW") ? 0 : 1);
1863 do_serial = (getenv("CW_SHADOW_SERIAL") ? 1 : 0);
1864
1865 if (getenv("CW_NO_EXEC") == NULL)
1866 ctx->i_flags |= CW_F_EXEC;
1867
1868 /*
1869 * The first argument must be one of "-_cc", "-_gcc", "-_CC", or "-_g++"
1870 */
1871 if (argc == 1)
1872 usage();
1873 argc--;
1874 argv++;
1875 if (strcmp(argv[0], "-_cc") == 0) {
1876 ctx->i_compiler = CW_C_CC;
1877 } else if (strcmp(argv[0], "-_gcc") == 0) {
1878 ctx->i_compiler = CW_C_GCC;
1879 } else if (strcmp(argv[0], "-_CC") == 0) {
1880 ctx->i_compiler = CW_C_CC;
1881 ctx->i_flags |= CW_F_CXX;
1882 } else if (strcmp(argv[0], "-_g++") == 0) {
1883 ctx->i_compiler = CW_C_GCC;
1884 ctx->i_flags |= CW_F_CXX;
1885 } else {
1886 /* assume "-_gcc" by default */
1887 argc++;
1888 argv--;
1889 ctx->i_compiler = CW_C_GCC;
1890 }
1891
1892 /*
1893 * -_compiler - tell us the path to the primary compiler only
1894 */
1895 if (argc > 1 && strcmp(argv[1], "-_compiler") == 0) {
1896 ctx->i_flags &= ~CW_F_XLATE;
1897 prepctx(ctx);
1898 (void) printf("%s\n", ctx->i_ae->ael_head->ae_arg);
1899 return (0);
1900 }
1901
1902 /*
1903 * -_versions - tell us the cw version, paths to all compilers, and
1904 * ask each for its version if we know how.
1905 */
1906 if (argc > 1 && strcmp(argv[1], "-_versions") == 0) {
1907 (void) printf("cw version %s", CW_VERSION);
1908 if (!do_shadow)
1909 (void) printf(" (SHADOW MODE DISABLED)");
1910 (void) printf("\n");
1911 (void) fflush(stdout);
1912 ctx->i_flags &= ~CW_F_ECHO;
1913 ctx->i_flags |= CW_F_PROG|CW_F_EXEC;
1914 argc--;
1915 argv++;
1916 do_serial = 1;
1917 }
1918
1919 ctx->i_oldargc = argc;
1920 ctx->i_oldargv = argv;
1921
1922 ret |= exec_ctx(ctx, do_serial);
1923
1924 if (do_shadow) {
1925 (void) memcpy(ctx_shadow, ctx, sizeof (cw_ictx_t));
1926 ctx_shadow->i_flags |= CW_F_SHADOW;
1927 ret |= exec_ctx(ctx_shadow, 1);
1928 }
1929
1930 if (!do_serial)
1931 ret |= reap(ctx);
1932
1933 return (ret);
1934 }