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(__x86)
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(__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 #endif
416 };
417
418 static int xtbl_size = sizeof (xtbl) / sizeof (xarch_table_t);
419
420 static const char *progname;
421
422 static const char *xchip_tbl[] = {
423 #if defined(__x86)
424 "386", "-mtune=i386", NULL,
425 "486", "-mtune=i486", NULL,
426 "pentium", "-mtune=pentium", NULL,
427 "pentium_pro", "-mtune=pentiumpro", NULL,
428 #elif defined(__sparc)
429 "super", "-mtune=supersparc", NULL,
430 "ultra", "-mtune=ultrasparc", NULL,
431 "ultra3", "-mtune=ultrasparc3", NULL,
432 #endif
433 NULL, NULL
434 };
435
436 static const char *xcode_tbl[] = {
437 #if defined(__sparc)
438 "abs32", "-fno-pic", "-mcmodel=medlow", NULL,
439 "abs44", "-fno-pic", "-mcmodel=medmid", NULL,
440 "abs64", "-fno-pic", "-mcmodel=medany", NULL,
441 "pic13", "-fpic", NULL,
442 "pic32", "-fPIC", NULL,
443 #endif
444 NULL, NULL
445 };
446
447 static const char *xtarget_tbl[] = {
448 #if defined(__x86)
449 "pentium_pro", "-march=pentiumpro", NULL,
450 #endif /* __x86 */
451 NULL, NULL
452 };
453
454 static const char *xregs_tbl[] = {
455 #if defined(__sparc)
456 "appl", "-mapp-regs", NULL,
457 "no%appl", "-mno-app-regs", NULL,
458 "float", "-mfpu", NULL,
459 "no%float", "-mno-fpu", NULL,
460 #endif /* __sparc */
461 NULL, NULL
462 };
463
464 static void
465 nomem(void)
466 {
467 (void) fprintf(stderr, "%s: error: out of memory\n", progname);
468 exit(1);
469 }
470
471 static void
472 cw_perror(const char *fmt, ...)
473 {
474 va_list ap;
475 int saved_errno = errno;
476
477 (void) fprintf(stderr, "%s: error: ", progname);
478
479 va_start(ap, fmt);
480 (void) vfprintf(stderr, fmt, ap);
481 va_end(ap);
482
483 (void) fprintf(stderr, " (%s)\n", strerror(saved_errno));
484 }
485
486 static void
487 newae(struct aelist *ael, const char *arg)
488 {
489 struct ae *ae;
490
491 if ((ae = calloc(sizeof (*ae), 1)) == NULL)
492 nomem();
493 ae->ae_arg = strdup(arg);
494 if (ael->ael_tail == NULL)
495 ael->ael_head = ae;
496 else
497 ael->ael_tail->ae_next = ae;
498 ael->ael_tail = ae;
499 ael->ael_argc++;
500 }
501
502 static cw_ictx_t *
503 newictx(void)
504 {
505 cw_ictx_t *ctx = calloc(sizeof (cw_ictx_t), 1);
506 if (ctx)
507 if ((ctx->i_ae = calloc(sizeof (struct aelist), 1)) == NULL) {
508 free(ctx);
509 return (NULL);
510 }
511
512 return (ctx);
513 }
514
515 static void
516 error(const char *arg)
517 {
518 (void) fprintf(stderr,
519 "%s: error: mapping failed at or near arg '%s'\n", progname, arg);
520 exit(2);
521 }
522
523 /*
524 * Add the current favourite set of warnings to the gcc invocation.
525 */
526 static void
527 warnings(struct aelist *h)
528 {
529 static int warningsonce;
530
531 if (warningsonce++)
532 return;
533
534 /*
535 * Enable as many warnings as exist, then disable those that we never
536 * ever want.
537 */
538 newae(h, "-Wall");
539 newae(h, "-Wextra");
540 }
541
542 static void
543 optim_disable(struct aelist *h, int level)
544 {
545 if (level >= 2) {
546 newae(h, "-fno-strict-aliasing");
547 newae(h, "-fno-unit-at-a-time");
548 newae(h, "-fno-optimize-sibling-calls");
549 }
550 }
551
552 /* ARGSUSED */
553 static void
554 Xamode(struct aelist *h)
555 {
556 }
557
558 static void
559 Xcmode(struct aelist *h)
560 {
561 static int xconce;
562
563 if (xconce++)
564 return;
565
566 newae(h, "-ansi");
567 newae(h, "-pedantic-errors");
568 }
569
570 static void
571 Xsmode(struct aelist *h)
572 {
573 static int xsonce;
574
575 if (xsonce++)
576 return;
577
578 newae(h, "-traditional");
579 newae(h, "-traditional-cpp");
580 }
581
582 static void
583 usage()
584 {
585 (void) fprintf(stderr,
586 "usage: %s { -_cc | -_gcc | -_CC | -_g++ } [ -_compiler | ... ]\n",
587 progname);
588 exit(2);
589 }
590
591 static int
592 xlate_xtb(struct aelist *h, const char *xarg)
593 {
594 int i, j;
595
596 for (i = 0; i < xtbl_size; i++) {
597 if (strcmp(xtbl[i].x_arg, xarg) == 0)
598 break;
599 }
600
601 /*
602 * At the end of the table and so no matching "arg" entry
603 * found and so this must be a bad -xarch= flag.
604 */
605 if (i == xtbl_size)
606 error(xarg);
607
608 for (j = 0; j < TRANS_ENTRY; j++) {
609 if (xtbl[i].x_trans[j] != NULL)
610 newae(h, xtbl[i].x_trans[j]);
611 else
612 break;
613 }
614 return (xtbl[i].x_flags);
615
616 }
617
618 static void
619 xlate(struct aelist *h, const char *xarg, const char **table)
620 {
621 while (*table != NULL && strcmp(xarg, *table) != 0) {
622 while (*table != NULL)
623 table++;
624 table++;
625 }
626
627 if (*table == NULL)
628 error(xarg);
629
630 table++;
631
632 while (*table != NULL) {
633 newae(h, *table);
634 table++;
635 }
636 }
637
638 static void
639 do_gcc(cw_ictx_t *ctx)
640 {
641 int c;
642 int pic = 0, nolibc = 0;
643 int in_output = 0, seen_o = 0, c_files = 0;
644 cw_op_t op = CW_O_LINK;
645 char *model = NULL;
646 int mflag = 0;
647
648 if (ctx->i_flags & CW_F_PROG) {
649 newae(ctx->i_ae, "--version");
650 return;
651 }
652
653 newae(ctx->i_ae, "-fident");
654 newae(ctx->i_ae, "-finline");
655 newae(ctx->i_ae, "-fno-inline-functions");
656 newae(ctx->i_ae, "-fno-builtin");
657 newae(ctx->i_ae, "-fno-asm");
658 newae(ctx->i_ae, "-fdiagnostics-show-option");
659 newae(ctx->i_ae, "-nodefaultlibs");
660
661 #if defined(__sparc)
662 /*
663 * The SPARC ldd and std instructions require 8-byte alignment of
664 * their address operand. gcc correctly uses them only when the
665 * ABI requires 8-byte alignment; unfortunately we have a number of
666 * pieces of buggy code that doesn't conform to the ABI. This
667 * flag makes gcc work more like Studio with -xmemalign=4.
668 */
669 newae(ctx->i_ae, "-mno-integer-ldd-std");
670 #endif
671
672 /*
673 * This is needed because 'u' is defined
674 * under a conditional on 'sun'. Should
675 * probably just remove the conditional,
676 * or make it be dependent on '__sun'.
677 *
678 * -Dunix is also missing in enhanced ANSI mode
679 */
680 newae(ctx->i_ae, "-D__sun");
681
682 /*
683 * Walk the argument list, translating as we go ..
684 */
685
686 while (--ctx->i_oldargc > 0) {
687 char *arg = *++ctx->i_oldargv;
688 size_t arglen = strlen(arg);
689
690 if (*arg == '-') {
691 arglen--;
692 } else {
693 /*
694 * Discard inline files that gcc doesn't grok
695 */
696 if (!in_output && arglen > 3 &&
697 strcmp(arg + arglen - 3, ".il") == 0)
698 continue;
699
700 if (!in_output && arglen > 2 &&
701 arg[arglen - 2] == '.' &&
702 (arg[arglen - 1] == 'S' || arg[arglen - 1] == 's' ||
703 arg[arglen - 1] == 'c' || arg[arglen - 1] == 'i'))
704 c_files++;
705
706 /*
707 * Otherwise, filenames and partial arguments
708 * are passed through for gcc to chew on. However,
709 * output is always discarded for the secondary
710 * compiler.
711 */
712 if ((ctx->i_flags & CW_F_SHADOW) && in_output)
713 newae(ctx->i_ae, ctx->i_discard);
714 else
715 newae(ctx->i_ae, arg);
716 in_output = 0;
717 continue;
718 }
719
720 if (ctx->i_flags & CW_F_CXX) {
721 if (strncmp(arg, "-compat=", 8) == 0) {
722 /* discard -compat=4 and -compat=5 */
723 continue;
724 }
725 if (strcmp(arg, "-Qoption") == 0) {
726 /* discard -Qoption and its two arguments */
727 if (ctx->i_oldargc < 3)
728 error(arg);
729 ctx->i_oldargc -= 2;
730 ctx->i_oldargv += 2;
731 continue;
732 }
733 if (strcmp(arg, "-xwe") == 0) {
734 /* turn warnings into errors */
735 newae(ctx->i_ae, "-Werror");
736 continue;
737 }
738 if (strcmp(arg, "-noex") == 0) {
739 /* no exceptions */
740 newae(ctx->i_ae, "-fno-exceptions");
741 /* no run time type descriptor information */
742 newae(ctx->i_ae, "-fno-rtti");
743 continue;
744 }
745 if (strcmp(arg, "-pic") == 0) {
746 newae(ctx->i_ae, "-fpic");
747 pic = 1;
748 continue;
749 }
750 if (strcmp(arg, "-PIC") == 0) {
751 newae(ctx->i_ae, "-fPIC");
752 pic = 1;
753 continue;
754 }
755 if (strcmp(arg, "-norunpath") == 0) {
756 /* gcc has no corresponding option */
757 continue;
758 }
759 if (strcmp(arg, "-nolib") == 0) {
760 /* -nodefaultlibs is on by default */
761 nolibc = 1;
762 continue;
763 }
764 #if defined(__sparc)
765 if (strcmp(arg, "-cg92") == 0) {
766 mflag |= xlate_xtb(ctx->i_ae, "v8");
767 xlate(ctx->i_ae, "super", xchip_tbl);
768 continue;
769 }
770 #endif /* __sparc */
771 }
772
773 switch ((c = arg[1])) {
774 case '_':
775 if (strcmp(arg, "-_noecho") == 0)
776 ctx->i_flags &= ~CW_F_ECHO;
777 else if (strncmp(arg, "-_cc=", 5) == 0 ||
778 strncmp(arg, "-_CC=", 5) == 0)
779 /* EMPTY */;
780 else if (strncmp(arg, "-_gcc=", 6) == 0 ||
781 strncmp(arg, "-_g++=", 6) == 0)
782 newae(ctx->i_ae, arg + 6);
783 else
784 error(arg);
785 break;
786 case '#':
787 if (arglen == 1) {
788 newae(ctx->i_ae, "-v");
789 break;
790 }
791 error(arg);
792 break;
793 case 'g':
794 newae(ctx->i_ae, "-gdwarf-2");
795 break;
796 case 'E':
797 if (arglen == 1) {
798 newae(ctx->i_ae, "-xc");
799 newae(ctx->i_ae, arg);
800 op = CW_O_PREPROCESS;
801 nolibc = 1;
802 break;
803 }
804 error(arg);
805 break;
806 case 'c':
807 case 'S':
808 if (arglen == 1) {
809 op = CW_O_COMPILE;
810 nolibc = 1;
811 }
812 /* FALLTHROUGH */
813 case 'C':
814 case 'H':
815 case 'p':
816 if (arglen == 1) {
817 newae(ctx->i_ae, arg);
818 break;
819 }
820 error(arg);
821 break;
822 case 'A':
823 case 'h':
824 case 'I':
825 case 'i':
826 case 'L':
827 case 'l':
828 case 'R':
829 case 'U':
830 case 'u':
831 case 'w':
832 newae(ctx->i_ae, arg);
833 break;
834 case 'o':
835 seen_o = 1;
836 if (arglen == 1) {
837 in_output = 1;
838 newae(ctx->i_ae, arg);
839 } else if (ctx->i_flags & CW_F_SHADOW) {
840 newae(ctx->i_ae, "-o");
841 newae(ctx->i_ae, ctx->i_discard);
842 } else {
843 newae(ctx->i_ae, arg);
844 }
845 break;
846 case 'D':
847 newae(ctx->i_ae, arg);
848 /*
849 * XXX Clearly a hack ... do we need _KADB too?
850 */
851 if (strcmp(arg, "-D_KERNEL") == 0 ||
852 strcmp(arg, "-D_BOOT") == 0)
853 newae(ctx->i_ae, "-ffreestanding");
854 break;
855 case 'd':
856 if (arglen == 2) {
857 if (strcmp(arg, "-dy") == 0) {
858 newae(ctx->i_ae, "-Wl,-dy");
859 break;
860 }
861 if (strcmp(arg, "-dn") == 0) {
862 newae(ctx->i_ae, "-Wl,-dn");
863 break;
864 }
865 }
866 if (strcmp(arg, "-dalign") == 0) {
867 /*
868 * -dalign forces alignment in some cases;
869 * gcc does not need any flag to do this.
870 */
871 break;
872 }
873 error(arg);
874 break;
875 case 'e':
876 if (strcmp(arg,
877 "-erroff=E_EMPTY_TRANSLATION_UNIT") == 0) {
878 /*
879 * Accept but ignore this -- gcc doesn't
880 * seem to complain about empty translation
881 * units
882 */
883 break;
884 }
885 /* XX64 -- ignore all -erroff= options, for now */
886 if (strncmp(arg, "-erroff=", 8) == 0)
887 break;
888 if (strcmp(arg, "-errtags=yes") == 0) {
889 warnings(ctx->i_ae);
890 break;
891 }
892 if (strcmp(arg, "-errwarn=%all") == 0) {
893 newae(ctx->i_ae, "-Werror");
894 break;
895 }
896 error(arg);
897 break;
898 case 'f':
899 if (strcmp(arg, "-flags") == 0) {
900 newae(ctx->i_ae, "--help");
901 break;
902 }
903 if (strncmp(arg, "-features=zla", 13) == 0) {
904 /*
905 * Accept but ignore this -- gcc allows
906 * zero length arrays.
907 */
908 break;
909 }
910 error(arg);
911 break;
912 case 'G':
913 newae(ctx->i_ae, "-shared");
914 nolibc = 1;
915 break;
916 case 'k':
917 if (strcmp(arg, "-keeptmp") == 0) {
918 newae(ctx->i_ae, "-save-temps");
919 break;
920 }
921 error(arg);
922 break;
923 case 'K':
924 if (arglen == 1) {
925 if ((arg = *++ctx->i_oldargv) == NULL ||
926 *arg == '\0')
927 error("-K");
928 ctx->i_oldargc--;
929 } else {
930 arg += 2;
931 }
932 if (strcmp(arg, "pic") == 0) {
933 newae(ctx->i_ae, "-fpic");
934 pic = 1;
935 break;
936 }
937 if (strcmp(arg, "PIC") == 0) {
938 newae(ctx->i_ae, "-fPIC");
939 pic = 1;
940 break;
941 }
942 error("-K");
943 break;
944 case 'm':
945 if (strcmp(arg, "-mt") == 0) {
946 newae(ctx->i_ae, "-D_REENTRANT");
947 break;
948 }
949 if (strcmp(arg, "-m64") == 0) {
950 newae(ctx->i_ae, "-m64");
951 #if defined(__x86)
952 newae(ctx->i_ae, "-mtune=opteron");
953 #endif
954 mflag |= M64;
955 break;
956 }
957 if (strcmp(arg, "-m32") == 0) {
958 newae(ctx->i_ae, "-m32");
959 mflag |= M32;
960 break;
961 }
962 error(arg);
963 break;
964 case 'B': /* linker options */
965 case 'M':
966 case 'z':
967 {
968 char *opt;
969 size_t len;
970 char *s;
971
972 if (arglen == 1) {
973 opt = *++ctx->i_oldargv;
974 if (opt == NULL || *opt == '\0')
975 error(arg);
976 ctx->i_oldargc--;
977 } else {
978 opt = arg + 2;
979 }
980 len = strlen(opt) + 7;
981 if ((s = malloc(len)) == NULL)
982 nomem();
983 (void) snprintf(s, len, "-Wl,-%c%s", c, opt);
984 newae(ctx->i_ae, s);
985 free(s);
986 }
987 break;
988 case 'n':
989 if (strcmp(arg, "-noqueue") == 0) {
990 /*
991 * Horrid license server stuff - n/a
992 */
993 break;
994 }
995 error(arg);
996 break;
997 case 'O':
998 if (arglen == 1) {
999 newae(ctx->i_ae, "-O");
1000 break;
1001 }
1002 error(arg);
1003 break;
1004 case 'P':
1005 /*
1006 * We could do '-E -o filename.i', but that's hard,
1007 * and we don't need it for the case that's triggering
1008 * this addition. We'll require the user to specify
1009 * -o in the Makefile. If they don't they'll find out
1010 * in a hurry.
1011 */
1012 newae(ctx->i_ae, "-E");
1013 op = CW_O_PREPROCESS;
1014 nolibc = 1;
1015 break;
1016 case 'q':
1017 if (strcmp(arg, "-qp") == 0) {
1018 newae(ctx->i_ae, "-p");
1019 break;
1020 }
1021 error(arg);
1022 break;
1023 case 's':
1024 if (arglen == 1) {
1025 newae(ctx->i_ae, "-Wl,-s");
1026 break;
1027 }
1028 error(arg);
1029 break;
1030 case 't':
1031 if (arglen == 1) {
1032 newae(ctx->i_ae, "-Wl,-t");
1033 break;
1034 }
1035 error(arg);
1036 break;
1037 case 'V':
1038 if (arglen == 1) {
1039 ctx->i_flags &= ~CW_F_ECHO;
1040 newae(ctx->i_ae, "--version");
1041 break;
1042 }
1043 error(arg);
1044 break;
1045 case 'v':
1046 if (arglen == 1) {
1047 warnings(ctx->i_ae);
1048 break;
1049 }
1050 error(arg);
1051 break;
1052 case 'W':
1053 if (strncmp(arg, "-Wp,-xc99", 9) == 0) {
1054 /*
1055 * gcc's preprocessor will accept c99
1056 * regardless, so accept and ignore.
1057 */
1058 break;
1059 }
1060 if (strncmp(arg, "-Wa,", 4) == 0 ||
1061 strncmp(arg, "-Wp,", 4) == 0 ||
1062 strncmp(arg, "-Wl,", 4) == 0) {
1063 newae(ctx->i_ae, arg);
1064 break;
1065 }
1066 if (strcmp(arg, "-W0,-xc99=pragma") == 0) {
1067 /* (undocumented) enables _Pragma */
1068 break;
1069 }
1070 if (strcmp(arg, "-W0,-xc99=%none") == 0) {
1071 /*
1072 * This is a polite way of saying
1073 * "no c99 constructs allowed!"
1074 * For now, just accept and ignore this.
1075 */
1076 break;
1077 }
1078 if (strcmp(arg, "-W0,-noglobal") == 0 ||
1079 strcmp(arg, "-W0,-xglobalstatic") == 0) {
1080 /*
1081 * gcc doesn't prefix local symbols
1082 * in debug mode, so this is not needed.
1083 */
1084 break;
1085 }
1086 if (strcmp(arg, "-W0,-Lt") == 0) {
1087 /*
1088 * Generate tests at the top of loops.
1089 * There is no direct gcc equivalent, ignore.
1090 */
1091 break;
1092 }
1093 if (strcmp(arg, "-W0,-xdbggen=no%usedonly") == 0) {
1094 newae(ctx->i_ae,
1095 "-fno-eliminate-unused-debug-symbols");
1096 newae(ctx->i_ae,
1097 "-fno-eliminate-unused-debug-types");
1098 break;
1099 }
1100 if (strcmp(arg, "-W2,-xwrap_int") == 0) {
1101 /*
1102 * Use the legacy behaviour (pre-SS11)
1103 * for integer wrapping.
1104 * gcc does not need this.
1105 */
1106 break;
1107 }
1108 if (strcmp(arg, "-W2,-Rcond_elim") == 0) {
1109 /*
1110 * Elimination and expansion of conditionals;
1111 * gcc has no direct equivalent.
1112 */
1113 break;
1114 }
1115 if (strcmp(arg, "-Wd,-xsafe=unboundsym") == 0) {
1116 /*
1117 * Prevents optimizing away checks for
1118 * unbound weak symbol addresses. gcc does
1119 * not do this, so it's not needed.
1120 */
1121 break;
1122 }
1123 if (strncmp(arg, "-Wc,-xcode=", 11) == 0) {
1124 xlate(ctx->i_ae, arg + 11, xcode_tbl);
1125 if (strncmp(arg + 11, "pic", 3) == 0)
1126 pic = 1;
1127 break;
1128 }
1129 if (strncmp(arg, "-Wc,-Qiselect", 13) == 0) {
1130 /*
1131 * Prevents insertion of register symbols.
1132 * gcc doesn't do this, so ignore it.
1133 */
1134 break;
1135 }
1136 if (strcmp(arg, "-Wc,-Qassembler-ounrefsym=0") == 0) {
1137 /*
1138 * Prevents optimizing away of static variables.
1139 * gcc does not do this, so it's not needed.
1140 */
1141 break;
1142 }
1143 #if defined(__x86)
1144 if (strcmp(arg, "-Wu,-xmodel=kernel") == 0) {
1145 newae(ctx->i_ae, "-ffreestanding");
1146 newae(ctx->i_ae, "-mno-red-zone");
1147 model = "-mcmodel=kernel";
1148 nolibc = 1;
1149 break;
1150 }
1151 if (strcmp(arg, "-Wu,-save_args") == 0) {
1152 newae(ctx->i_ae, "-msave-args");
1153 break;
1154 }
1155 #endif /* __x86 */
1156 error(arg);
1157 break;
1158 case 'X':
1159 if (strcmp(arg, "-Xa") == 0 ||
1160 strcmp(arg, "-Xt") == 0) {
1161 Xamode(ctx->i_ae);
1162 break;
1163 }
1164 if (strcmp(arg, "-Xc") == 0) {
1165 Xcmode(ctx->i_ae);
1166 break;
1167 }
1168 if (strcmp(arg, "-Xs") == 0) {
1169 Xsmode(ctx->i_ae);
1170 break;
1171 }
1172 error(arg);
1173 break;
1174 case 'x':
1175 if (arglen == 1)
1176 error(arg);
1177 switch (arg[2]) {
1178 #if defined(__x86)
1179 case '3':
1180 if (strcmp(arg, "-x386") == 0) {
1181 newae(ctx->i_ae, "-march=i386");
1182 break;
1183 }
1184 error(arg);
1185 break;
1186 case '4':
1187 if (strcmp(arg, "-x486") == 0) {
1188 newae(ctx->i_ae, "-march=i486");
1189 break;
1190 }
1191 error(arg);
1192 break;
1193 #endif /* __x86 */
1194 case 'a':
1195 if (strncmp(arg, "-xarch=", 7) == 0) {
1196 mflag |= xlate_xtb(ctx->i_ae, arg + 7);
1197 break;
1198 }
1199 error(arg);
1200 break;
1201 case 'b':
1202 if (strncmp(arg, "-xbuiltin=", 10) == 0) {
1203 if (strcmp(arg + 10, "%all"))
1204 newae(ctx->i_ae, "-fbuiltin");
1205 break;
1206 }
1207 error(arg);
1208 break;
1209 case 'C':
1210 /* Accept C++ style comments -- ignore */
1211 if (strcmp(arg, "-xCC") == 0)
1212 break;
1213 error(arg);
1214 break;
1215 case 'c':
1216 if (strncmp(arg, "-xc99=%all", 10) == 0) {
1217 newae(ctx->i_ae, "-std=gnu99");
1218 break;
1219 }
1220 if (strncmp(arg, "-xc99=%none", 11) == 0) {
1221 newae(ctx->i_ae, "-std=gnu89");
1222 break;
1223 }
1224 if (strncmp(arg, "-xchip=", 7) == 0) {
1225 xlate(ctx->i_ae, arg + 7, xchip_tbl);
1226 break;
1227 }
1228 if (strncmp(arg, "-xcode=", 7) == 0) {
1229 xlate(ctx->i_ae, arg + 7, xcode_tbl);
1230 if (strncmp(arg + 7, "pic", 3) == 0)
1231 pic = 1;
1232 break;
1233 }
1234 if (strncmp(arg, "-xcache=", 8) == 0)
1235 break;
1236 if (strncmp(arg, "-xcrossfile", 11) == 0)
1237 break;
1238 error(arg);
1239 break;
1240 case 'd':
1241 if (strcmp(arg, "-xdepend") == 0)
1242 break;
1243 if (strncmp(arg, "-xdebugformat=", 14) == 0)
1244 break;
1245 error(arg);
1246 break;
1247 case 'F':
1248 /*
1249 * Compile for mapfile reordering, or unused
1250 * section elimination, syntax can be -xF or
1251 * more complex, like -xF=%all -- ignore.
1252 */
1253 if (strncmp(arg, "-xF", 3) == 0)
1254 break;
1255 error(arg);
1256 break;
1257 case 'i':
1258 if (strncmp(arg, "-xinline", 8) == 0)
1259 /* No inlining; ignore */
1260 break;
1261 if (strcmp(arg, "-xildon") == 0 ||
1262 strcmp(arg, "-xildoff") == 0)
1263 /* No incremental linking; ignore */
1264 break;
1265 error(arg);
1266 break;
1267 #if defined(__x86)
1268 case 'm':
1269 if (strcmp(arg, "-xmodel=kernel") == 0) {
1270 newae(ctx->i_ae, "-ffreestanding");
1271 newae(ctx->i_ae, "-mno-red-zone");
1272 model = "-mcmodel=kernel";
1273 nolibc = 1;
1274 break;
1275 }
1276 error(arg);
1277 break;
1278 #endif /* __x86 */
1279 case 'M':
1280 if (strcmp(arg, "-xM") == 0) {
1281 newae(ctx->i_ae, "-M");
1282 break;
1283 }
1284 if (strcmp(arg, "-xM1") == 0) {
1285 newae(ctx->i_ae, "-MM");
1286 break;
1287 }
1288 error(arg);
1289 break;
1290 case 'n':
1291 if (strcmp(arg, "-xnolib") == 0) {
1292 nolibc = 1;
1293 break;
1294 }
1295 error(arg);
1296 break;
1297 case 'O':
1298 if (strncmp(arg, "-xO", 3) == 0) {
1299 size_t len = strlen(arg);
1300 char *s;
1301 int c = *(arg + 3);
1302 int level;
1303
1304 if (len != 4 || !isdigit(c))
1305 error(arg);
1306
1307 if ((s = malloc(len)) == NULL)
1308 nomem();
1309
1310 level = atoi(arg + 3);
1311 if (level > 5)
1312 error(arg);
1313 if (level >= 2) {
1314 /*
1315 * For gcc-3.4.x at -O2 we
1316 * need to disable optimizations
1317 * that break ON.
1318 */
1319 optim_disable(ctx->i_ae, level);
1320 /*
1321 * limit -xO3 to -O2 as well.
1322 */
1323 level = 2;
1324 }
1325 (void) snprintf(s, len, "-O%d", level);
1326 newae(ctx->i_ae, s);
1327 free(s);
1328 break;
1329 }
1330 error(arg);
1331 break;
1332 case 'p':
1333 if (strcmp(arg, "-xpentium") == 0) {
1334 newae(ctx->i_ae, "-march=pentium");
1335 break;
1336 }
1337 if (strcmp(arg, "-xpg") == 0) {
1338 newae(ctx->i_ae, "-pg");
1339 break;
1340 }
1341 error(arg);
1342 break;
1343 case 'r':
1344 if (strncmp(arg, "-xregs=", 7) == 0) {
1345 xlate(ctx->i_ae, arg + 7, xregs_tbl);
1346 break;
1347 }
1348 error(arg);
1349 break;
1350 case 's':
1351 if (strcmp(arg, "-xs") == 0 ||
1352 strcmp(arg, "-xspace") == 0 ||
1353 strcmp(arg, "-xstrconst") == 0)
1354 break;
1355 error(arg);
1356 break;
1357 case 't':
1358 if (strcmp(arg, "-xtransition") == 0) {
1359 newae(ctx->i_ae, "-Wtransition");
1360 break;
1361 }
1362 if (strcmp(arg, "-xtrigraphs=yes") == 0) {
1363 newae(ctx->i_ae, "-trigraphs");
1364 break;
1365 }
1366 if (strcmp(arg, "-xtrigraphs=no") == 0) {
1367 newae(ctx->i_ae, "-notrigraphs");
1368 break;
1369 }
1370 if (strncmp(arg, "-xtarget=", 9) == 0) {
1371 xlate(ctx->i_ae, arg + 9, xtarget_tbl);
1372 break;
1373 }
1374 error(arg);
1375 break;
1376 case 'e':
1377 case 'h':
1378 case 'l':
1379 default:
1380 error(arg);
1381 break;
1382 }
1383 break;
1384 case 'Y':
1385 if (arglen == 1) {
1386 if ((arg = *++ctx->i_oldargv) == NULL ||
1387 *arg == '\0')
1388 error("-Y");
1389 ctx->i_oldargc--;
1390 arglen = strlen(arg + 1);
1391 } else {
1392 arg += 2;
1393 }
1394 /* Just ignore -YS,... for now */
1395 if (strncmp(arg, "S,", 2) == 0)
1396 break;
1397 if (strncmp(arg, "l,", 2) == 0) {
1398 char *s = strdup(arg);
1399 s[0] = '-';
1400 s[1] = 'B';
1401 newae(ctx->i_ae, s);
1402 free(s);
1403 break;
1404 }
1405 if (strncmp(arg, "I,", 2) == 0) {
1406 char *s = strdup(arg);
1407 s[0] = '-';
1408 s[1] = 'I';
1409 newae(ctx->i_ae, "-nostdinc");
1410 newae(ctx->i_ae, s);
1411 free(s);
1412 break;
1413 }
1414 error(arg);
1415 break;
1416 case 'Q':
1417 /*
1418 * We could map -Qy into -Wl,-Qy etc.
1419 */
1420 default:
1421 error(arg);
1422 break;
1423 }
1424 }
1425
1426 if (c_files > 1 && (ctx->i_flags & CW_F_SHADOW) &&
1427 op != CW_O_PREPROCESS) {
1428 (void) fprintf(stderr, "%s: error: multiple source files are "
1429 "allowed only with -E or -P\n", progname);
1430 exit(2);
1431 }
1432
1433 /*
1434 * Make sure that we do not have any unintended interactions between
1435 * the xarch options passed in and the version of the Studio compiler
1436 * used.
1437 */
1438 if ((mflag & (SS11|SS12)) == (SS11|SS12)) {
1439 (void) fprintf(stderr,
1440 "Conflicting \"-xarch=\" flags (both Studio 11 and 12)\n");
1441 exit(2);
1442 }
1443
1444 switch (mflag) {
1445 case 0:
1446 /* FALLTHROUGH */
1447 case M32:
1448 #if defined(__sparc)
1449 /*
1450 * Only -m32 is defined and so put in the missing xarch
1451 * translation.
1452 */
1453 newae(ctx->i_ae, "-mcpu=v8");
1454 newae(ctx->i_ae, "-mno-v8plus");
1455 #endif
1456 break;
1457 case M64:
1458 #if defined(__sparc)
1459 /*
1460 * Only -m64 is defined and so put in the missing xarch
1461 * translation.
1462 */
1463 newae(ctx->i_ae, "-mcpu=v9");
1464 #endif
1465 break;
1466 case SS12:
1467 #if defined(__sparc)
1468 /* no -m32/-m64 flag used - this is an error for sparc builds */
1469 (void) fprintf(stderr, "No -m32/-m64 flag defined\n");
1470 exit(2);
1471 #endif
1472 break;
1473 case SS11:
1474 /* FALLTHROUGH */
1475 case (SS11|M32):
1476 case (SS11|M64):
1477 break;
1478 case (SS12|M32):
1479 #if defined(__sparc)
1480 /*
1481 * Need to add in further 32 bit options because with SS12
1482 * the xarch=sparcvis option can be applied to 32 or 64
1483 * bit, and so the translatation table (xtbl) cannot handle
1484 * that.
1485 */
1486 newae(ctx->i_ae, "-mv8plus");
1487 #endif
1488 break;
1489 case (SS12|M64):
1490 break;
1491 default:
1492 (void) fprintf(stderr,
1493 "Incompatible -xarch= and/or -m32/-m64 options used.\n");
1494 exit(2);
1495 }
1496 if (op == CW_O_LINK && (ctx->i_flags & CW_F_SHADOW))
1497 exit(0);
1498
1499 if (model && !pic)
1500 newae(ctx->i_ae, model);
1501 if (!nolibc)
1502 newae(ctx->i_ae, "-lc");
1503 if (!seen_o && (ctx->i_flags & CW_F_SHADOW)) {
1504 newae(ctx->i_ae, "-o");
1505 newae(ctx->i_ae, ctx->i_discard);
1506 }
1507 }
1508
1509 static void
1510 do_cc(cw_ictx_t *ctx)
1511 {
1512 int in_output = 0, seen_o = 0;
1513 cw_op_t op = CW_O_LINK;
1514
1515 if (ctx->i_flags & CW_F_PROG) {
1516 newae(ctx->i_ae, "-V");
1517 return;
1518 }
1519
1520 while (--ctx->i_oldargc > 0) {
1521 char *arg = *++ctx->i_oldargv;
1522
1523 if (*arg != '-') {
1524 if (in_output == 0 || !(ctx->i_flags & CW_F_SHADOW)) {
1525 newae(ctx->i_ae, arg);
1526 } else {
1527 in_output = 0;
1528 newae(ctx->i_ae, ctx->i_discard);
1529 }
1530 continue;
1531 }
1532 switch (*(arg + 1)) {
1533 case '_':
1534 if (strcmp(arg, "-_noecho") == 0) {
1535 ctx->i_flags &= ~CW_F_ECHO;
1536 } else if (strncmp(arg, "-_cc=", 5) == 0 ||
1537 strncmp(arg, "-_CC=", 5) == 0) {
1538 newae(ctx->i_ae, arg + 5);
1539 } else if (strncmp(arg, "-_gcc=", 6) != 0 &&
1540 strncmp(arg, "-_g++=", 6) != 0) {
1541 (void) fprintf(stderr,
1542 "%s: invalid argument '%s'\n", progname,
1543 arg);
1544 exit(2);
1545 }
1546 break;
1547 case 'V':
1548 ctx->i_flags &= ~CW_F_ECHO;
1549 newae(ctx->i_ae, arg);
1550 break;
1551 case 'o':
1552 seen_o = 1;
1553 if (strlen(arg) == 2) {
1554 in_output = 1;
1555 newae(ctx->i_ae, arg);
1556 } else if (ctx->i_flags & CW_F_SHADOW) {
1557 newae(ctx->i_ae, "-o");
1558 newae(ctx->i_ae, ctx->i_discard);
1559 } else {
1560 newae(ctx->i_ae, arg);
1561 }
1562 break;
1563 case 'c':
1564 case 'S':
1565 if (strlen(arg) == 2)
1566 op = CW_O_COMPILE;
1567 newae(ctx->i_ae, arg);
1568 break;
1569 case 'E':
1570 case 'P':
1571 if (strlen(arg) == 2)
1572 op = CW_O_PREPROCESS;
1573 /*FALLTHROUGH*/
1574 default:
1575 newae(ctx->i_ae, arg);
1576 }
1577 }
1578
1579 if ((op == CW_O_LINK || op == CW_O_PREPROCESS) &&
1580 (ctx->i_flags & CW_F_SHADOW))
1581 exit(0);
1582
1583 if (!seen_o && (ctx->i_flags & CW_F_SHADOW)) {
1584 newae(ctx->i_ae, "-o");
1585 newae(ctx->i_ae, ctx->i_discard);
1586 }
1587 }
1588
1589 static void
1590 prepctx(cw_ictx_t *ctx)
1591 {
1592 const char *dir = NULL, *cmd;
1593 char *program = NULL;
1594 size_t len;
1595
1596 switch (CIDX(CC(ctx), ctx->i_flags)) {
1597 case CIDX(CW_C_CC, 0):
1598 program = getenv("CW_CC");
1599 dir = getenv("CW_CC_DIR");
1600 break;
1601 case CIDX(CW_C_CC, CW_F_CXX):
1602 program = getenv("CW_CPLUSPLUS");
1603 dir = getenv("CW_CPLUSPLUS_DIR");
1604 break;
1605 case CIDX(CW_C_GCC, 0):
1606 program = getenv("CW_GCC");
1607 dir = getenv("CW_GCC_DIR");
1608 break;
1609 case CIDX(CW_C_GCC, CW_F_CXX):
1610 program = getenv("CW_GPLUSPLUS");
1611 dir = getenv("CW_GPLUSPLUS_DIR");
1612 break;
1613 }
1614
1615 if (program == NULL) {
1616 if (dir == NULL)
1617 dir = default_dir[CC(ctx)];
1618 cmd = cmds[CIDX(CC(ctx), ctx->i_flags)];
1619 len = strlen(dir) + strlen(cmd) + 2;
1620 if ((program = malloc(len)) == NULL)
1621 nomem();
1622 (void) snprintf(program, len, "%s/%s", dir, cmd);
1623 }
1624
1625 newae(ctx->i_ae, program);
1626
1627 if (ctx->i_flags & CW_F_PROG) {
1628 (void) printf("%s: %s\n", (ctx->i_flags & CW_F_SHADOW) ?
1629 "shadow" : "primary", program);
1630 (void) fflush(stdout);
1631 }
1632
1633 if (!(ctx->i_flags & CW_F_XLATE))
1634 return;
1635
1636 switch (CC(ctx)) {
1637 case CW_C_CC:
1638 do_cc(ctx);
1639 break;
1640 case CW_C_GCC:
1641 do_gcc(ctx);
1642 break;
1643 }
1644 }
1645
1646 static int
1647 invoke(cw_ictx_t *ctx)
1648 {
1649 char **newargv;
1650 int ac;
1651 struct ae *a;
1652
1653 if ((newargv = calloc(sizeof (*newargv), ctx->i_ae->ael_argc + 1)) ==
1654 NULL)
1655 nomem();
1656
1657 if (ctx->i_flags & CW_F_ECHO)
1658 (void) fprintf(stderr, "+ ");
1659
1660 for (ac = 0, a = ctx->i_ae->ael_head; a; a = a->ae_next, ac++) {
1661 newargv[ac] = a->ae_arg;
1662 if (ctx->i_flags & CW_F_ECHO)
1663 (void) fprintf(stderr, "%s ", a->ae_arg);
1664 if (a == ctx->i_ae->ael_tail)
1665 break;
1666 }
1667
1668 if (ctx->i_flags & CW_F_ECHO) {
1669 (void) fprintf(stderr, "\n");
1670 (void) fflush(stderr);
1671 }
1672
1673 if (!(ctx->i_flags & CW_F_EXEC))
1674 return (0);
1675
1676 /*
1677 * We must fix up the environment here so that the
1678 * dependency files are not trampled by the shadow compiler.
1679 */
1680 if ((ctx->i_flags & CW_F_SHADOW) &&
1681 (unsetenv("SUNPRO_DEPENDENCIES") != 0 ||
1682 unsetenv("DEPENDENCIES_OUTPUT") != 0)) {
1683 (void) fprintf(stderr, "error: environment setup failed: %s\n",
1684 strerror(errno));
1685 return (-1);
1686 }
1687
1688 (void) execv(newargv[0], newargv);
1689 cw_perror("couldn't run %s", newargv[0]);
1690
1691 return (-1);
1692 }
1693
1694 static int
1695 reap(cw_ictx_t *ctx)
1696 {
1697 int status, ret = 0;
1698 char buf[1024];
1699 struct stat s;
1700
1701 /*
1702 * Only wait for one specific child.
1703 */
1704 if (ctx->i_pid <= 0)
1705 return (-1);
1706
1707 do {
1708 if (waitpid(ctx->i_pid, &status, 0) < 0) {
1709 cw_perror("cannot reap child");
1710 return (-1);
1711 }
1712 if (status != 0) {
1713 if (WIFSIGNALED(status)) {
1714 ret = -WTERMSIG(status);
1715 break;
1716 } else if (WIFEXITED(status)) {
1717 ret = WEXITSTATUS(status);
1718 break;
1719 }
1720 }
1721 } while (!WIFEXITED(status) && !WIFSIGNALED(status));
1722
1723 (void) unlink(ctx->i_discard);
1724
1725 if (stat(ctx->i_stderr, &s) < 0) {
1726 cw_perror("stat failed on child cleanup");
1727 return (-1);
1728 }
1729 if (s.st_size != 0) {
1730 FILE *f;
1731
1732 if ((f = fopen(ctx->i_stderr, "r")) != NULL) {
1733 while (fgets(buf, sizeof (buf), f))
1734 (void) fprintf(stderr, "%s", buf);
1735 (void) fflush(stderr);
1736 (void) fclose(f);
1737 }
1738 }
1739 (void) unlink(ctx->i_stderr);
1740 free(ctx->i_stderr);
1741
1742 /*
1743 * cc returns an error code when given -V; we want that to succeed.
1744 */
1745 if (ctx->i_flags & CW_F_PROG)
1746 return (0);
1747
1748 return (ret);
1749 }
1750
1751 static int
1752 exec_ctx(cw_ictx_t *ctx, int block)
1753 {
1754 char *file;
1755
1756 /*
1757 * To avoid offending cc's sensibilities, the name of its output
1758 * file must end in '.o'.
1759 */
1760 if ((file = tempnam(NULL, ".cw")) == NULL) {
1761 nomem();
1762 return (-1);
1763 }
1764 (void) strlcpy(ctx->i_discard, file, MAXPATHLEN);
1765 (void) strlcat(ctx->i_discard, ".o", MAXPATHLEN);
1766 free(file);
1767
1768 if ((ctx->i_stderr = tempnam(NULL, ".cw")) == NULL) {
1769 nomem();
1770 return (-1);
1771 }
1772
1773 if ((ctx->i_pid = fork()) == 0) {
1774 int fd;
1775
1776 (void) fclose(stderr);
1777 if ((fd = open(ctx->i_stderr, O_WRONLY | O_CREAT | O_EXCL,
1778 0666)) < 0) {
1779 cw_perror("open failed for standard error");
1780 exit(1);
1781 }
1782 if (dup2(fd, 2) < 0) {
1783 cw_perror("dup2 failed for standard error");
1784 exit(1);
1785 }
1786 if (fd != 2)
1787 (void) close(fd);
1788 if (freopen("/dev/fd/2", "w", stderr) == NULL) {
1789 cw_perror("freopen failed for /dev/fd/2");
1790 exit(1);
1791 }
1792 prepctx(ctx);
1793 exit(invoke(ctx));
1794 }
1795
1796 if (ctx->i_pid < 0) {
1797 cw_perror("fork failed");
1798 return (1);
1799 }
1800
1801 if (block)
1802 return (reap(ctx));
1803
1804 return (0);
1805 }
1806
1807 int
1808 main(int argc, char **argv)
1809 {
1810 cw_ictx_t *ctx = newictx();
1811 cw_ictx_t *ctx_shadow = newictx();
1812 const char *dir;
1813 int do_serial, do_shadow;
1814 int ret = 0;
1815
1816 if ((progname = strrchr(argv[0], '/')) == NULL)
1817 progname = argv[0];
1818 else
1819 progname++;
1820
1821 if (ctx == NULL || ctx_shadow == NULL)
1822 nomem();
1823
1824 ctx->i_flags = CW_F_ECHO|CW_F_XLATE;
1825
1826 /*
1827 * Figure out where to get our tools from. This depends on
1828 * the environment variables set at run time.
1829 */
1830 if ((dir = getenv("SPRO_VROOT")) != NULL) {
1831 (void) snprintf(default_dir[CW_C_CC], MAXPATHLEN,
1832 "%s/bin", dir);
1833 } else if ((dir = getenv("SPRO_ROOT")) != NULL) {
1834 (void) snprintf(default_dir[CW_C_CC], MAXPATHLEN,
1835 "%s/SS12/bin", dir);
1836 } else if ((dir = getenv("BUILD_TOOLS")) != NULL) {
1837 (void) snprintf(default_dir[CW_C_CC], MAXPATHLEN,
1838 "%s/SUNWspro/SS12/bin", dir);
1839 }
1840
1841 if ((dir = getenv("GCC_ROOT")) != NULL) {
1842 (void) snprintf(default_dir[CW_C_GCC], MAXPATHLEN,
1843 "%s/bin", dir);
1844 }
1845
1846 do_shadow = (getenv("CW_NO_SHADOW") ? 0 : 1);
1847 do_serial = (getenv("CW_SHADOW_SERIAL") ? 1 : 0);
1848
1849 if (getenv("CW_NO_EXEC") == NULL)
1850 ctx->i_flags |= CW_F_EXEC;
1851
1852 /*
1853 * The first argument must be one of "-_cc", "-_gcc", "-_CC", or "-_g++"
1854 */
1855 if (argc == 1)
1856 usage();
1857 argc--;
1858 argv++;
1859 if (strcmp(argv[0], "-_cc") == 0) {
1860 ctx->i_compiler = CW_C_CC;
1861 } else if (strcmp(argv[0], "-_gcc") == 0) {
1862 ctx->i_compiler = CW_C_GCC;
1863 } else if (strcmp(argv[0], "-_CC") == 0) {
1864 ctx->i_compiler = CW_C_CC;
1865 ctx->i_flags |= CW_F_CXX;
1866 } else if (strcmp(argv[0], "-_g++") == 0) {
1867 ctx->i_compiler = CW_C_GCC;
1868 ctx->i_flags |= CW_F_CXX;
1869 } else {
1870 /* assume "-_gcc" by default */
1871 argc++;
1872 argv--;
1873 ctx->i_compiler = CW_C_GCC;
1874 }
1875
1876 /*
1877 * -_compiler - tell us the path to the primary compiler only
1878 */
1879 if (argc > 1 && strcmp(argv[1], "-_compiler") == 0) {
1880 ctx->i_flags &= ~CW_F_XLATE;
1881 prepctx(ctx);
1882 (void) printf("%s\n", ctx->i_ae->ael_head->ae_arg);
1883 return (0);
1884 }
1885
1886 /*
1887 * -_versions - tell us the cw version, paths to all compilers, and
1888 * ask each for its version if we know how.
1889 */
1890 if (argc > 1 && strcmp(argv[1], "-_versions") == 0) {
1891 (void) printf("cw version %s", CW_VERSION);
1892 if (!do_shadow)
1893 (void) printf(" (SHADOW MODE DISABLED)");
1894 (void) printf("\n");
1895 (void) fflush(stdout);
1896 ctx->i_flags &= ~CW_F_ECHO;
1897 ctx->i_flags |= CW_F_PROG|CW_F_EXEC;
1898 argc--;
1899 argv++;
1900 do_serial = 1;
1901 }
1902
1903 ctx->i_oldargc = argc;
1904 ctx->i_oldargv = argv;
1905
1906 ret |= exec_ctx(ctx, do_serial);
1907
1908 if (do_shadow) {
1909 (void) memcpy(ctx_shadow, ctx, sizeof (cw_ictx_t));
1910 ctx_shadow->i_flags |= CW_F_SHADOW;
1911 ret |= exec_ctx(ctx_shadow, 1);
1912 }
1913
1914 if (!do_serial)
1915 ret |= reap(ctx);
1916
1917 return (ret);
1918 }