1
2 /*
3 * CDDL HEADER START
4 *
5 * The contents of this file are subject to the terms of the
6 * Common Development and Distribution License (the "License").
7 * You may not use this file except in compliance with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22
23 /*
24 * Copyright 2018, Richard Lowe.
25 */
26 /*
27 * Copyright 2010 Sun Microsystems, Inc. All rights reserved.
28 * Use is subject to license terms.
29 */
30
31 /*
32 * Wrapper for the GNU C compiler to make it accept the Sun C compiler
33 * arguments where possible.
34 *
35 * Since the translation is inexact, this is something of a work-in-progress.
36 *
37 */
38
39 /* If you modify this file, you must increment CW_VERSION */
40 #define CW_VERSION "2.0"
41
42 /*
43 * -# Verbose mode
44 * -### Show compiler commands built by driver, no compilation
45 * -A<name[(tokens)]> Preprocessor predicate assertion
46 * -B<[static|dynamic]> Specify dynamic or static binding
47 * -C Prevent preprocessor from removing comments
48 * -c Compile only - produce .o files, suppress linking
49 * -cg92 Alias for -xtarget=ss1000
50 * -D<name[=token]> Associate name with token as if by #define
51 * -d[y|n] dynamic [-dy] or static [-dn] option to linker
52 * -E Compile source through preprocessor only, output to stdout
53 * -erroff=<t> Suppress warnings specified by tags t(%none, %all, <tag list>)
54 * -errtags=<a> Display messages with tags a(no, yes)
55 * -errwarn=<t> Treats warnings specified by tags t(%none, %all, <tag list>)
56 * as errors
57 * -fast Optimize using a selection of options
58 * -fd Report old-style function definitions and declarations
59 * -features=zla Allow zero-length arrays
60 * -flags Show this summary of compiler options
61 * -fnonstd Initialize floating-point hardware to non-standard preferences
62 * -fns[=<yes|no>] Select non-standard floating point mode
63 * -fprecision=<p> Set FP rounding precision mode p(single, double, extended)
64 * -fround=<r> Select the IEEE rounding mode in effect at startup
65 * -fsimple[=<n>] Select floating-point optimization preferences <n>
66 * -fsingle Use single-precision arithmetic (-Xt and -Xs modes only)
67 * -ftrap=<t> Select floating-point trapping mode in effect at startup
68 * -fstore force floating pt. values to target precision on assignment
69 * -G Build a dynamic shared library
70 * -g Compile for debugging
71 * -H Print path name of each file included during compilation
72 * -h <name> Assign <name> to generated dynamic shared library
73 * -I<dir> Add <dir> to preprocessor #include file search path
74 * -i Passed to linker to ignore any LD_LIBRARY_PATH setting
75 * -keeptmp Keep temporary files created during compilation
76 * -KPIC Compile position independent code with 32-bit addresses
77 * -Kpic Compile position independent code
78 * -L<dir> Pass to linker to add <dir> to the library search path
79 * -l<name> Link with library lib<name>.a or lib<name>.so
80 * -mc Remove duplicate strings from .comment section of output files
81 * -mr Remove all strings from .comment section of output files
82 * -mr,"string" Remove all strings and append "string" to .comment section
83 * -mt Specify options needed when compiling multi-threaded code
84 * -native Find available processor, generate code accordingly
85 * -nofstore Do not force floating pt. values to target precision
86 * on assignment
87 * -nolib Same as -xnolib
88 * -noqueue Disable queuing of compiler license requests
89 * -norunpath Do not build in a runtime path for shared libraries
90 * -O Use default optimization level (-xO2 or -xO3. Check man page.)
91 * -o <outputfile> Set name of output file to <outputfile>
92 * -P Compile source through preprocessor only, output to .i file
93 * -PIC Alias for -KPIC or -xcode=pic32
94 * -p Compile for profiling with prof
95 * -pic Alias for -Kpic or -xcode=pic13
96 * -Q[y|n] Emit/don't emit identification info to output file
97 * -qp Compile for profiling with prof
98 * -R<dir[:dir]> Build runtime search path list into executable
99 * -S Compile and only generate assembly code (.s)
100 * -s Strip symbol table from the executable file
101 * -t Turn off duplicate symbol warnings when linking
102 * -U<name> Delete initial definition of preprocessor symbol <name>
103 * -V Report version number of each compilation phase
104 * -v Do stricter semantic checking
105 * -W<c>,<arg> Pass <arg> to specified component <c> (a,l,m,p,0,2,h,i,u)
106 * -w Suppress compiler warning messages
107 * -Xa Compile assuming ANSI C conformance, allow K & R extensions
108 * (default mode)
109 * -Xc Compile assuming strict ANSI C conformance
110 * -Xs Compile assuming (pre-ANSI) K & R C style code
111 * -Xt Compile assuming K & R conformance, allow ANSI C
112 * -x386 Generate code for the 80386 processor
113 * -x486 Generate code for the 80486 processor
114 * -xarch=<a> Specify target architecture instruction set
115 * -xbuiltin[=<b>] When profitable inline, or substitute intrinisic functions
116 * for system functions, b={%all,%none}
117 * -xCC Accept C++ style comments
118 * -xchar_byte_order=<o> Specify multi-char byte order <o> (default, high, low)
119 * -xchip=<c> Specify the target processor for use by the optimizer
120 * -xcode=<c> Generate different code for forming addresses
121 * -xcrossfile[=<n>] Enable optimization and inlining across source files,
122 * n={0|1}
123 * -xe Perform only syntax/semantic checking, no code generation
124 * -xF Compile for later mapfile reordering or unused section
125 * elimination
126 * -xhelp=<f> Display on-line help information f(flags, readme, errors)
127 * -xildoff Cancel -xildon
128 * -xildon Enable use of the incremental linker, ild
129 * -xinline=[<a>,...,<a>] Attempt inlining of specified user routines,
130 * <a>={%auto,func,no%func}
131 * -xlibmieee Force IEEE 754 return values for math routines in
132 * exceptional cases
133 * -xlibmil Inline selected libm math routines for optimization
134 * -xlic_lib=sunperf Link in the Sun supplied performance libraries
135 * -xlicinfo Show license server information
136 * -xM Generate makefile dependencies
137 * -xM1 Generate makefile dependencies, but exclude /usr/include
138 * -xmaxopt=[off,1,2,3,4,5] maximum optimization level allowed on #pragma opt
139 * -xnolib Do not link with default system libraries
140 * -xnolibmil Cancel -xlibmil on command line
141 * -xO<n> Generate optimized code (n={1|2|3|4|5})
142 * -xP Print prototypes for function definitions
143 * -xpentium Generate code for the pentium processor
144 * -xpg Compile for profiling with gprof
145 * -xprofile=<p> Collect data for a profile or use a profile to optimize
146 * <p>={{collect,use}[:<path>],tcov}
147 * -xregs=<r> Control register allocation
148 * -xs Allow debugging without object (.o) files
149 * -xsb Compile for use with the WorkShop source browser
150 * -xsbfast Generate only WorkShop source browser info, no compilation
151 * -xsfpconst Represent unsuffixed floating point constants as single
152 * precision
153 * -xspace Do not do optimizations that increase code size
154 * -xstrconst Place string literals into read-only data segment
155 * -xtarget=<t> Specify target system for optimization
156 * -xtemp=<dir> Set directory for temporary files to <dir>
157 * -xtime Report the execution time for each compilation phase
158 * -xtransition Emit warnings for differences between K&R C and ANSI C
159 * -xtrigraphs[=<yes|no>] Enable|disable trigraph translation
160 * -xunroll=n Enable unrolling loops n times where possible
161 * -Y<c>,<dir> Specify <dir> for location of component <c> (a,l,m,p,0,h,i,u)
162 * -YA,<dir> Change default directory searched for components
163 * -YI,<dir> Change default directory searched for include files
164 * -YP,<dir> Change default directory for finding libraries files
165 * -YS,<dir> Change default directory for startup object files
166 */
167
168 /*
169 * Translation table:
170 */
171 /*
172 * -# -v
173 * -### error
174 * -A<name[(tokens)]> pass-thru
175 * -B<[static|dynamic]> pass-thru (syntax error for anything else)
176 * -C pass-thru
177 * -c pass-thru
178 * -cg92 -m32 -mcpu=v8 -mtune=supersparc (SPARC only)
179 * -D<name[=token]> pass-thru
180 * -dy or -dn -Wl,-dy or -Wl,-dn
181 * -E pass-thru
182 * -erroff=E_EMPTY_TRANSLATION_UNIT ignore
183 * -errtags=%all -Wall
184 * -errwarn=%all -Werror else -Wno-error
185 * -fast error
186 * -fd error
187 * -features=zla ignore
188 * -flags --help
189 * -fnonstd error
190 * -fns[=<yes|no>] error
191 * -fprecision=<p> error
192 * -fround=<r> error
193 * -fsimple[=<n>] error
194 * -fsingle[=<n>] error
195 * -ftrap=<t> error
196 * -fstore error
197 * -G pass-thru
198 * -g pass-thru
199 * -H pass-thru
200 * -h <name> pass-thru
201 * -I<dir> pass-thru
202 * -i pass-thru
203 * -keeptmp -save-temps
204 * -KPIC -fPIC
205 * -Kpic -fpic
206 * -L<dir> pass-thru
207 * -l<name> pass-thru
208 * -mc error
209 * -mr error
210 * -mr,"string" error
211 * -mt -D_REENTRANT
212 * -native error
213 * -nofstore error
214 * -nolib -nodefaultlibs
215 * -noqueue ignore
216 * -norunpath ignore
217 * -O -O1 (Check the man page to be certain)
218 * -o <outputfile> pass-thru
219 * -P -E -o filename.i (or error)
220 * -PIC -fPIC (C++ only)
221 * -p pass-thru
222 * -pic -fpic (C++ only)
223 * -Q[y|n] error
224 * -qp -p
225 * -R<dir[:dir]> pass-thru
226 * -S pass-thru
227 * -s -Wl,-s
228 * -t -Wl,-t
229 * -U<name> pass-thru
230 * -V --version
231 * -v -Wall
232 * -Wa,<arg> pass-thru
233 * -Wp,<arg> pass-thru except -xc99=<a>
234 * -Wl,<arg> pass-thru
235 * -W{m,0,2,h,i,u> error/ignore
236 * -Wu,-xmodel=kernel -ffreestanding -mcmodel=kernel -mno-red-zone
237 * -xmodel=kernel -ffreestanding -mcmodel=kernel -mno-red-zone
238 * -Wu,-save_args -msave-args
239 * -w pass-thru
240 * -Xa -std=iso9899:199409 or -ansi
241 * -Xc -ansi -pedantic
242 * -Xt error
243 * -Xs -traditional -std=c89
244 * -x386 -march=i386 (x86 only)
245 * -x486 -march=i486 (x86 only)
246 * -xarch=<a> table
247 * -xbuiltin[=<b>] -fbuiltin (-fno-builtin otherwise)
248 * -xCC ignore
249 * -xchar_byte_order=<o> error
250 * -xchip=<c> table
251 * -xcode=<c> table
252 * -xdebugformat=<format> ignore (always use dwarf-2 for gcc)
253 * -xcrossfile[=<n>] ignore
254 * -xe error
255 * -xF error
256 * -xhelp=<f> error
257 * -xildoff ignore
258 * -xildon ignore
259 * -xinline ignore
260 * -xlibmieee error
261 * -xlibmil error
262 * -xlic_lib=sunperf error
263 * -xM -M
264 * -xM1 -MM
265 * -xmaxopt=[...] error
266 * -xnolib -nodefaultlibs
267 * -xnolibmil error
268 * -xO<n> -O<n>
269 * -xP error
270 * -xpentium -march=pentium (x86 only)
271 * -xpg error
272 * -xprofile=<p> error
273 * -xregs=<r> table
274 * -xs error
275 * -xsb error
276 * -xsbfast error
277 * -xsfpconst error
278 * -xspace ignore (-not -Os)
279 * -xstrconst ignore
280 * -xtarget=<t> table
281 * -xtemp=<dir> error
282 * -xtime error
283 * -xtransition -Wtransition
284 * -xtrigraphs=<yes|no> -trigraphs -notrigraphs
285 * -xunroll=n error
286 * -W0,-xdbggen=no%usedonly -fno-eliminate-unused-debug-symbols
287 * -fno-eliminate-unused-debug-types
288 * -Y<c>,<dir> error
289 * -YA,<dir> error
290 * -YI,<dir> -nostdinc -I<dir>
291 * -YP,<dir> error
292 * -YS,<dir> error
293 */
294
295 #include <ctype.h>
296 #include <err.h>
297 #include <errno.h>
298 #include <fcntl.h>
299 #include <getopt.h>
300 #include <stdio.h>
301 #include <stdlib.h>
302 #include <string.h>
303 #include <unistd.h>
304
305 #include <sys/param.h>
306 #include <sys/stat.h>
307 #include <sys/types.h>
308 #include <sys/utsname.h>
309 #include <sys/wait.h>
310
311 #define CW_F_CXX 0x01
312 #define CW_F_SHADOW 0x02
313 #define CW_F_EXEC 0x04
314 #define CW_F_ECHO 0x08
315 #define CW_F_XLATE 0x10
316 #define CW_F_PROG 0x20
317
318 typedef enum cw_op {
319 CW_O_NONE = 0,
320 CW_O_PREPROCESS,
321 CW_O_COMPILE,
322 CW_O_LINK
323 } cw_op_t;
324
325 struct aelist {
326 struct ae {
327 struct ae *ae_next;
328 char *ae_arg;
329 } *ael_head, *ael_tail;
330 int ael_argc;
331 };
332
333 typedef enum {
334 GNU,
335 SUN
336 } compiler_style_t;
337
338 typedef struct {
339 char *c_name;
340 char *c_path;
341 compiler_style_t c_style;
342 } cw_compiler_t;
343
344 typedef struct cw_ictx {
345 cw_compiler_t *i_compiler;
346 struct aelist *i_ae;
347 uint32_t i_flags;
348 int i_oldargc;
349 char **i_oldargv;
350 pid_t i_pid;
351 char i_discard[MAXPATHLEN];
352 char *i_stderr;
353 } cw_ictx_t;
354
355 /*
356 * Status values to indicate which Studio compiler and associated
357 * flags are being used.
358 */
359 #define M32 0x01 /* -m32 - only on Studio 12 */
360 #define M64 0x02 /* -m64 - only on Studio 12 */
361 #define SS11 0x100 /* Studio 11 */
362 #define SS12 0x200 /* Studio 12 */
363
364 #define TRANS_ENTRY 5
365 /*
366 * Translation table definition for the -xarch= flag. The "x_arg"
367 * value is translated into the appropriate gcc flags according
368 * to the values in x_trans[n]. The x_flags indicates what compiler
369 * is being used and what flags have been set via the use of
370 * "x_arg".
371 */
372 typedef struct xarch_table {
373 char *x_arg;
374 int x_flags;
375 char *x_trans[TRANS_ENTRY];
376 } xarch_table_t;
377
378 /*
379 * The translation table for the -xarch= flag used in the Studio compilers.
380 */
381 static const xarch_table_t xtbl[] = {
382 #if defined(__x86)
383 { "generic", SS11, {NULL} },
384 { "generic64", (SS11|M64), { "-m64", "-mtune=opteron" } },
385 { "amd64", (SS11|M64), { "-m64", "-mtune=opteron" } },
386 { "386", SS11, { "-march=i386" } },
387 { "pentium_pro", SS11, { "-march=pentiumpro" } },
388 { "sse", SS11, { "-msse", "-mfpmath=sse" } },
389 { "sse2", SS11, { "-msse2", "-mfpmath=sse" } },
390 #elif defined(__sparc)
391 { "generic", (SS11|M32), { "-m32", "-mcpu=v8" } },
392 { "generic64", (SS11|M64), { "-m64", "-mcpu=v9" } },
393 { "v8", (SS11|M32), { "-m32", "-mcpu=v8", "-mno-v8plus" } },
394 { "v8plus", (SS11|M32), { "-m32", "-mcpu=v9", "-mv8plus" } },
395 { "v8plusa", (SS11|M32), { "-m32", "-mcpu=ultrasparc", "-mv8plus",
396 "-mvis" } },
397 { "v8plusb", (SS11|M32), { "-m32", "-mcpu=ultrasparc3", "-mv8plus",
398 "-mvis" } },
399 { "v9", (SS11|M64), { "-m64", "-mcpu=v9" } },
400 { "v9a", (SS11|M64), { "-m64", "-mcpu=ultrasparc", "-mvis" } },
401 { "v9b", (SS11|M64), { "-m64", "-mcpu=ultrasparc3", "-mvis" } },
402 { "sparc", SS12, { "-mcpu=v9", "-mv8plus" } },
403 { "sparcvis", SS12, { "-mcpu=ultrasparc", "-mvis" } },
404 { "sparcvis2", SS12, { "-mcpu=ultrasparc3", "-mvis" } }
405 #endif
406 };
407
408 static int xtbl_size = sizeof (xtbl) / sizeof (xarch_table_t);
409
410 static const char *xchip_tbl[] = {
411 #if defined(__x86)
412 "386", "-mtune=i386", NULL,
413 "486", "-mtune=i486", NULL,
414 "pentium", "-mtune=pentium", NULL,
415 "pentium_pro", "-mtune=pentiumpro", NULL,
416 #elif defined(__sparc)
417 "super", "-mtune=supersparc", NULL,
418 "ultra", "-mtune=ultrasparc", NULL,
419 "ultra3", "-mtune=ultrasparc3", NULL,
420 #endif
421 NULL, NULL
422 };
423
424 static const char *xcode_tbl[] = {
425 #if defined(__sparc)
426 "abs32", "-fno-pic", "-mcmodel=medlow", NULL,
427 "abs44", "-fno-pic", "-mcmodel=medmid", NULL,
428 "abs64", "-fno-pic", "-mcmodel=medany", NULL,
429 "pic13", "-fpic", NULL,
430 "pic32", "-fPIC", NULL,
431 #endif
432 NULL, NULL
433 };
434
435 static const char *xtarget_tbl[] = {
436 #if defined(__x86)
437 "pentium_pro", "-march=pentiumpro", NULL,
438 #endif /* __x86 */
439 NULL, NULL
440 };
441
442 static const char *xregs_tbl[] = {
443 #if defined(__sparc)
444 "appl", "-mapp-regs", NULL,
445 "no%appl", "-mno-app-regs", NULL,
446 "float", "-mfpu", NULL,
447 "no%float", "-mno-fpu", NULL,
448 #endif /* __sparc */
449 NULL, NULL
450 };
451
452 static void
453 nomem(void)
454 {
455 errx(1, "out of memory");
456 }
457
458 static void
459 newae(struct aelist *ael, const char *arg)
460 {
461 struct ae *ae;
462
463 if ((ae = calloc(sizeof (*ae), 1)) == NULL)
464 nomem();
465 ae->ae_arg = strdup(arg);
466 if (ael->ael_tail == NULL)
467 ael->ael_head = ae;
468 else
469 ael->ael_tail->ae_next = ae;
470 ael->ael_tail = ae;
471 ael->ael_argc++;
472 }
473
474 static cw_ictx_t *
475 newictx(void)
476 {
477 cw_ictx_t *ctx = calloc(sizeof (cw_ictx_t), 1);
478 if (ctx)
479 if ((ctx->i_ae = calloc(sizeof (struct aelist), 1)) == NULL) {
480 free(ctx);
481 return (NULL);
482 }
483
484 return (ctx);
485 }
486
487 static void
488 error(const char *arg)
489 {
490 errx(2, "error: mapping failed at or near arg '%s'\n", arg);
491 }
492
493 /*
494 * Add the current favourite set of warnings to the gcc invocation.
495 */
496 static void
497 warnings(struct aelist *h)
498 {
499 static int warningsonce;
500
501 if (warningsonce++)
502 return;
503
504 /*
505 * Enable as many warnings as exist, then disable those that we never
506 * ever want.
507 */
508 newae(h, "-Wall");
509 newae(h, "-Wextra");
510 }
511
512 static void
513 optim_disable(struct aelist *h, int level)
514 {
515 if (level >= 2) {
516 newae(h, "-fno-strict-aliasing");
517 newae(h, "-fno-unit-at-a-time");
518 newae(h, "-fno-optimize-sibling-calls");
519 }
520 }
521
522 /* ARGSUSED */
523 static void
524 Xamode(struct aelist __unused *h)
525 {
526 }
527
528 static void
529 Xcmode(struct aelist *h)
530 {
531 static int xconce;
532
533 if (xconce++)
534 return;
535
536 newae(h, "-ansi");
537 newae(h, "-pedantic-errors");
538 }
539
540 static void
541 Xsmode(struct aelist *h)
542 {
543 static int xsonce;
544
545 if (xsonce++)
546 return;
547
548 newae(h, "-traditional");
549 newae(h, "-traditional-cpp");
550 }
551
552 static void
553 usage()
554 {
555 extern char *__progname;
556 (void) fprintf(stderr,
557 "usage: %s [-C] [--versions] --primary <compiler> "
558 "[--shadow <compiler>]... -- cflags...\n",
559 __progname);
560 (void) fprintf(stderr, "compilers take the form: name,path,style\n"
561 " - name: a unique name usable in flag specifiers\n"
562 " - path: path to the compiler binary\n"
563 " - style: the style of flags expected: either sun or gnu\n");
564 exit(2);
565 }
566
567 static int
568 xlate_xtb(struct aelist *h, const char *xarg)
569 {
570 int i, j;
571
572 for (i = 0; i < xtbl_size; i++) {
573 if (strcmp(xtbl[i].x_arg, xarg) == 0)
574 break;
575 }
576
577 /*
578 * At the end of the table and so no matching "arg" entry
579 * found and so this must be a bad -xarch= flag.
580 */
581 if (i == xtbl_size)
582 error(xarg);
583
584 for (j = 0; j < TRANS_ENTRY; j++) {
585 if (xtbl[i].x_trans[j] != NULL)
586 newae(h, xtbl[i].x_trans[j]);
587 else
588 break;
589 }
590 return (xtbl[i].x_flags);
591
592 }
593
594 static void
595 xlate(struct aelist *h, const char *xarg, const char **table)
596 {
597 while (*table != NULL && strcmp(xarg, *table) != 0) {
598 while (*table != NULL)
599 table++;
600 table++;
601 }
602
603 if (*table == NULL)
604 error(xarg);
605
606 table++;
607
608 while (*table != NULL) {
609 newae(h, *table);
610 table++;
611 }
612 }
613
614 static void
615 do_gcc(cw_ictx_t *ctx)
616 {
617 int c;
618 int pic = 0, nolibc = 0;
619 int in_output = 0, seen_o = 0, c_files = 0;
620 cw_op_t op = CW_O_LINK;
621 char *model = NULL;
622 char *nameflag;
623 int mflag = 0;
624
625 if (ctx->i_flags & CW_F_PROG) {
626 newae(ctx->i_ae, "--version");
627 return;
628 }
629
630 newae(ctx->i_ae, "-fident");
631 newae(ctx->i_ae, "-finline");
632 newae(ctx->i_ae, "-fno-inline-functions");
633 newae(ctx->i_ae, "-fno-builtin");
634 newae(ctx->i_ae, "-fno-asm");
635 newae(ctx->i_ae, "-fdiagnostics-show-option");
636 newae(ctx->i_ae, "-nodefaultlibs");
637
638 #if defined(__sparc)
639 /*
640 * The SPARC ldd and std instructions require 8-byte alignment of
641 * their address operand. gcc correctly uses them only when the
642 * ABI requires 8-byte alignment; unfortunately we have a number of
643 * pieces of buggy code that doesn't conform to the ABI. This
644 * flag makes gcc work more like Studio with -xmemalign=4.
645 */
646 newae(ctx->i_ae, "-mno-integer-ldd-std");
647 #endif
648
649 /*
650 * This is needed because 'u' is defined
651 * under a conditional on 'sun'. Should
652 * probably just remove the conditional,
653 * or make it be dependent on '__sun'.
654 *
655 * -Dunix is also missing in enhanced ANSI mode
656 */
657 newae(ctx->i_ae, "-D__sun");
658
659 if (asprintf(&nameflag, "-_%s=", ctx->i_compiler->c_name) == -1)
660 nomem();
661
662 /*
663 * Walk the argument list, translating as we go ..
664 */
665 while (--ctx->i_oldargc > 0) {
666 char *arg = *++ctx->i_oldargv;
667 size_t arglen = strlen(arg);
668
669 if (*arg == '-') {
670 arglen--;
671 } else {
672 /*
673 * Discard inline files that gcc doesn't grok
674 */
675 if (!in_output && arglen > 3 &&
676 strcmp(arg + arglen - 3, ".il") == 0)
677 continue;
678
679 if (!in_output && arglen > 2 &&
680 arg[arglen - 2] == '.' &&
681 (arg[arglen - 1] == 'S' || arg[arglen - 1] == 's' ||
682 arg[arglen - 1] == 'c' || arg[arglen - 1] == 'i'))
683 c_files++;
684
685 /*
686 * Otherwise, filenames and partial arguments
687 * are passed through for gcc to chew on. However,
688 * output is always discarded for the secondary
689 * compiler.
690 */
691 if ((ctx->i_flags & CW_F_SHADOW) && in_output)
692 newae(ctx->i_ae, ctx->i_discard);
693 else
694 newae(ctx->i_ae, arg);
695 in_output = 0;
696 continue;
697 }
698
699 if (ctx->i_flags & CW_F_CXX) {
700 if (strncmp(arg, "-_g++=", 6) == 0) {
701 newae(ctx->i_ae, strchr(arg, '=') + 1);
702 continue;
703 }
704 if (strncmp(arg, "-compat=", 8) == 0) {
705 /* discard -compat=4 and -compat=5 */
706 continue;
707 }
708 if (strcmp(arg, "-Qoption") == 0) {
709 /* discard -Qoption and its two arguments */
710 if (ctx->i_oldargc < 3)
711 error(arg);
712 ctx->i_oldargc -= 2;
713 ctx->i_oldargv += 2;
714 continue;
715 }
716 if (strcmp(arg, "-xwe") == 0) {
717 /* turn warnings into errors */
718 newae(ctx->i_ae, "-Werror");
719 continue;
720 }
721 if (strcmp(arg, "-noex") == 0) {
722 /* no exceptions */
723 newae(ctx->i_ae, "-fno-exceptions");
724 /* no run time type descriptor information */
725 newae(ctx->i_ae, "-fno-rtti");
726 continue;
727 }
728 if (strcmp(arg, "-pic") == 0) {
729 newae(ctx->i_ae, "-fpic");
730 pic = 1;
731 continue;
732 }
733 if (strcmp(arg, "-PIC") == 0) {
734 newae(ctx->i_ae, "-fPIC");
735 pic = 1;
736 continue;
737 }
738 if (strcmp(arg, "-norunpath") == 0) {
739 /* gcc has no corresponding option */
740 continue;
741 }
742 if (strcmp(arg, "-nolib") == 0) {
743 /* -nodefaultlibs is on by default */
744 nolibc = 1;
745 continue;
746 }
747 #if defined(__sparc)
748 if (strcmp(arg, "-cg92") == 0) {
749 mflag |= xlate_xtb(ctx->i_ae, "v8");
750 xlate(ctx->i_ae, "super", xchip_tbl);
751 continue;
752 }
753 #endif /* __sparc */
754 }
755
756 switch ((c = arg[1])) {
757 case '_':
758 if ((strncmp(arg, nameflag, strlen(nameflag)) == 0) ||
759 (strncmp(arg, "-_gcc=", 6) == 0) ||
760 (strncmp(arg, "-_gnu=", 6) == 0)) {
761 newae(ctx->i_ae, strchr(arg, '=') + 1);
762 }
763 break;
764 case '#':
765 if (arglen == 1) {
766 newae(ctx->i_ae, "-v");
767 break;
768 }
769 error(arg);
770 break;
771 case 'g':
772 newae(ctx->i_ae, "-gdwarf-2");
773 break;
774 case 'E':
775 if (arglen == 1) {
776 newae(ctx->i_ae, "-xc");
777 newae(ctx->i_ae, arg);
778 op = CW_O_PREPROCESS;
779 nolibc = 1;
780 break;
781 }
782 error(arg);
783 break;
784 case 'c':
785 case 'S':
786 if (arglen == 1) {
787 op = CW_O_COMPILE;
788 nolibc = 1;
789 }
790 /* FALLTHROUGH */
791 case 'C':
792 case 'H':
793 case 'p':
794 if (arglen == 1) {
795 newae(ctx->i_ae, arg);
796 break;
797 }
798 error(arg);
799 break;
800 case 'A':
801 case 'h':
802 case 'I':
803 case 'i':
804 case 'L':
805 case 'l':
806 case 'R':
807 case 'U':
808 case 'u':
809 case 'w':
810 newae(ctx->i_ae, arg);
811 break;
812 case 'o':
813 seen_o = 1;
814 if (arglen == 1) {
815 in_output = 1;
816 newae(ctx->i_ae, arg);
817 } else if (ctx->i_flags & CW_F_SHADOW) {
818 newae(ctx->i_ae, "-o");
819 newae(ctx->i_ae, ctx->i_discard);
820 } else {
821 newae(ctx->i_ae, arg);
822 }
823 break;
824 case 'D':
825 newae(ctx->i_ae, arg);
826 /*
827 * XXX Clearly a hack ... do we need _KADB too?
828 */
829 if (strcmp(arg, "-D_KERNEL") == 0 ||
830 strcmp(arg, "-D_BOOT") == 0)
831 newae(ctx->i_ae, "-ffreestanding");
832 break;
833 case 'd':
834 if (arglen == 2) {
835 if (strcmp(arg, "-dy") == 0) {
836 newae(ctx->i_ae, "-Wl,-dy");
837 break;
838 }
839 if (strcmp(arg, "-dn") == 0) {
840 newae(ctx->i_ae, "-Wl,-dn");
841 break;
842 }
843 }
844 if (strcmp(arg, "-dalign") == 0) {
845 /*
846 * -dalign forces alignment in some cases;
847 * gcc does not need any flag to do this.
848 */
849 break;
850 }
851 error(arg);
852 break;
853 case 'e':
854 if (strcmp(arg,
855 "-erroff=E_EMPTY_TRANSLATION_UNIT") == 0) {
856 /*
857 * Accept but ignore this -- gcc doesn't
858 * seem to complain about empty translation
859 * units
860 */
861 break;
862 }
863 /* XX64 -- ignore all -erroff= options, for now */
864 if (strncmp(arg, "-erroff=", 8) == 0)
865 break;
866 if (strcmp(arg, "-errtags=yes") == 0) {
867 warnings(ctx->i_ae);
868 break;
869 }
870 if (strcmp(arg, "-errwarn=%all") == 0) {
871 newae(ctx->i_ae, "-Werror");
872 break;
873 }
874 error(arg);
875 break;
876 case 'f':
877 if (strcmp(arg, "-flags") == 0) {
878 newae(ctx->i_ae, "--help");
879 break;
880 }
881 if (strncmp(arg, "-features=zla", 13) == 0) {
882 /*
883 * Accept but ignore this -- gcc allows
884 * zero length arrays.
885 */
886 break;
887 }
888 error(arg);
889 break;
890 case 'G':
891 newae(ctx->i_ae, "-shared");
892 nolibc = 1;
893 break;
894 case 'k':
895 if (strcmp(arg, "-keeptmp") == 0) {
896 newae(ctx->i_ae, "-save-temps");
897 break;
898 }
899 error(arg);
900 break;
901 case 'K':
902 if (arglen == 1) {
903 if ((arg = *++ctx->i_oldargv) == NULL ||
904 *arg == '\0')
905 error("-K");
906 ctx->i_oldargc--;
907 } else {
908 arg += 2;
909 }
910 if (strcmp(arg, "pic") == 0) {
911 newae(ctx->i_ae, "-fpic");
912 pic = 1;
913 break;
914 }
915 if (strcmp(arg, "PIC") == 0) {
916 newae(ctx->i_ae, "-fPIC");
917 pic = 1;
918 break;
919 }
920 error("-K");
921 break;
922 case 'm':
923 if (strcmp(arg, "-mt") == 0) {
924 newae(ctx->i_ae, "-D_REENTRANT");
925 break;
926 }
927 if (strcmp(arg, "-m64") == 0) {
928 newae(ctx->i_ae, "-m64");
929 #if defined(__x86)
930 newae(ctx->i_ae, "-mtune=opteron");
931 #endif
932 mflag |= M64;
933 break;
934 }
935 if (strcmp(arg, "-m32") == 0) {
936 newae(ctx->i_ae, "-m32");
937 mflag |= M32;
938 break;
939 }
940 error(arg);
941 break;
942 case 'B': /* linker options */
943 case 'M':
944 case 'z':
945 {
946 char *opt;
947 size_t len;
948 char *s;
949
950 if (arglen == 1) {
951 opt = *++ctx->i_oldargv;
952 if (opt == NULL || *opt == '\0')
953 error(arg);
954 ctx->i_oldargc--;
955 } else {
956 opt = arg + 2;
957 }
958 len = strlen(opt) + 7;
959 if ((s = malloc(len)) == NULL)
960 nomem();
961 (void) snprintf(s, len, "-Wl,-%c%s", c, opt);
962 newae(ctx->i_ae, s);
963 free(s);
964 }
965 break;
966 case 'n':
967 if (strcmp(arg, "-noqueue") == 0) {
968 /*
969 * Horrid license server stuff - n/a
970 */
971 break;
972 }
973 error(arg);
974 break;
975 case 'O':
976 if (arglen == 1) {
977 newae(ctx->i_ae, "-O");
978 break;
979 }
980 error(arg);
981 break;
982 case 'P':
983 /*
984 * We could do '-E -o filename.i', but that's hard,
985 * and we don't need it for the case that's triggering
986 * this addition. We'll require the user to specify
987 * -o in the Makefile. If they don't they'll find out
988 * in a hurry.
989 */
990 newae(ctx->i_ae, "-E");
991 op = CW_O_PREPROCESS;
992 nolibc = 1;
993 break;
994 case 'q':
995 if (strcmp(arg, "-qp") == 0) {
996 newae(ctx->i_ae, "-p");
997 break;
998 }
999 error(arg);
1000 break;
1001 case 's':
1002 if (arglen == 1) {
1003 newae(ctx->i_ae, "-Wl,-s");
1004 break;
1005 }
1006 error(arg);
1007 break;
1008 case 't':
1009 if (arglen == 1) {
1010 newae(ctx->i_ae, "-Wl,-t");
1011 break;
1012 }
1013 error(arg);
1014 break;
1015 case 'V':
1016 if (arglen == 1) {
1017 ctx->i_flags &= ~CW_F_ECHO;
1018 newae(ctx->i_ae, "--version");
1019 break;
1020 }
1021 error(arg);
1022 break;
1023 case 'v':
1024 if (arglen == 1) {
1025 warnings(ctx->i_ae);
1026 break;
1027 }
1028 error(arg);
1029 break;
1030 case 'W':
1031 if (strncmp(arg, "-Wp,-xc99", 9) == 0) {
1032 /*
1033 * gcc's preprocessor will accept c99
1034 * regardless, so accept and ignore.
1035 */
1036 break;
1037 }
1038 if (strncmp(arg, "-Wa,", 4) == 0 ||
1039 strncmp(arg, "-Wp,", 4) == 0 ||
1040 strncmp(arg, "-Wl,", 4) == 0) {
1041 newae(ctx->i_ae, arg);
1042 break;
1043 }
1044 if (strcmp(arg, "-W0,-xc99=pragma") == 0) {
1045 /* (undocumented) enables _Pragma */
1046 break;
1047 }
1048 if (strcmp(arg, "-W0,-xc99=%none") == 0) {
1049 /*
1050 * This is a polite way of saying
1051 * "no c99 constructs allowed!"
1052 * For now, just accept and ignore this.
1053 */
1054 break;
1055 }
1056 if (strcmp(arg, "-W0,-noglobal") == 0 ||
1057 strcmp(arg, "-W0,-xglobalstatic") == 0) {
1058 /*
1059 * gcc doesn't prefix local symbols
1060 * in debug mode, so this is not needed.
1061 */
1062 break;
1063 }
1064 if (strcmp(arg, "-W0,-Lt") == 0) {
1065 /*
1066 * Generate tests at the top of loops.
1067 * There is no direct gcc equivalent, ignore.
1068 */
1069 break;
1070 }
1071 if (strcmp(arg, "-W0,-xdbggen=no%usedonly") == 0) {
1072 newae(ctx->i_ae,
1073 "-fno-eliminate-unused-debug-symbols");
1074 newae(ctx->i_ae,
1075 "-fno-eliminate-unused-debug-types");
1076 break;
1077 }
1078 if (strcmp(arg, "-W2,-xwrap_int") == 0) {
1079 /*
1080 * Use the legacy behaviour (pre-SS11)
1081 * for integer wrapping.
1082 * gcc does not need this.
1083 */
1084 break;
1085 }
1086 if (strcmp(arg, "-W2,-Rcond_elim") == 0) {
1087 /*
1088 * Elimination and expansion of conditionals;
1089 * gcc has no direct equivalent.
1090 */
1091 break;
1092 }
1093 if (strcmp(arg, "-Wd,-xsafe=unboundsym") == 0) {
1094 /*
1095 * Prevents optimizing away checks for
1096 * unbound weak symbol addresses. gcc does
1097 * not do this, so it's not needed.
1098 */
1099 break;
1100 }
1101 if (strncmp(arg, "-Wc,-xcode=", 11) == 0) {
1102 xlate(ctx->i_ae, arg + 11, xcode_tbl);
1103 if (strncmp(arg + 11, "pic", 3) == 0)
1104 pic = 1;
1105 break;
1106 }
1107 if (strncmp(arg, "-Wc,-Qiselect", 13) == 0) {
1108 /*
1109 * Prevents insertion of register symbols.
1110 * gcc doesn't do this, so ignore it.
1111 */
1112 break;
1113 }
1114 if (strcmp(arg, "-Wc,-Qassembler-ounrefsym=0") == 0) {
1115 /*
1116 * Prevents optimizing away of static variables.
1117 * gcc does not do this, so it's not needed.
1118 */
1119 break;
1120 }
1121 #if defined(__x86)
1122 if (strcmp(arg, "-Wu,-xmodel=kernel") == 0) {
1123 newae(ctx->i_ae, "-ffreestanding");
1124 newae(ctx->i_ae, "-mno-red-zone");
1125 model = "-mcmodel=kernel";
1126 nolibc = 1;
1127 break;
1128 }
1129 if (strcmp(arg, "-Wu,-save_args") == 0) {
1130 newae(ctx->i_ae, "-msave-args");
1131 break;
1132 }
1133 #endif /* __x86 */
1134 error(arg);
1135 break;
1136 case 'X':
1137 if (strcmp(arg, "-Xa") == 0 ||
1138 strcmp(arg, "-Xt") == 0) {
1139 Xamode(ctx->i_ae);
1140 break;
1141 }
1142 if (strcmp(arg, "-Xc") == 0) {
1143 Xcmode(ctx->i_ae);
1144 break;
1145 }
1146 if (strcmp(arg, "-Xs") == 0) {
1147 Xsmode(ctx->i_ae);
1148 break;
1149 }
1150 error(arg);
1151 break;
1152 case 'x':
1153 if (arglen == 1)
1154 error(arg);
1155 switch (arg[2]) {
1156 #if defined(__x86)
1157 case '3':
1158 if (strcmp(arg, "-x386") == 0) {
1159 newae(ctx->i_ae, "-march=i386");
1160 break;
1161 }
1162 error(arg);
1163 break;
1164 case '4':
1165 if (strcmp(arg, "-x486") == 0) {
1166 newae(ctx->i_ae, "-march=i486");
1167 break;
1168 }
1169 error(arg);
1170 break;
1171 #endif /* __x86 */
1172 case 'a':
1173 if (strncmp(arg, "-xarch=", 7) == 0) {
1174 mflag |= xlate_xtb(ctx->i_ae, arg + 7);
1175 break;
1176 }
1177 error(arg);
1178 break;
1179 case 'b':
1180 if (strncmp(arg, "-xbuiltin=", 10) == 0) {
1181 if (strcmp(arg + 10, "%all"))
1182 newae(ctx->i_ae, "-fbuiltin");
1183 break;
1184 }
1185 error(arg);
1186 break;
1187 case 'C':
1188 /* Accept C++ style comments -- ignore */
1189 if (strcmp(arg, "-xCC") == 0)
1190 break;
1191 error(arg);
1192 break;
1193 case 'c':
1194 if (strncmp(arg, "-xc99=%all", 10) == 0) {
1195 newae(ctx->i_ae, "-std=gnu99");
1196 break;
1197 }
1198 if (strncmp(arg, "-xc99=%none", 11) == 0) {
1199 newae(ctx->i_ae, "-std=gnu89");
1200 break;
1201 }
1202 if (strncmp(arg, "-xchip=", 7) == 0) {
1203 xlate(ctx->i_ae, arg + 7, xchip_tbl);
1204 break;
1205 }
1206 if (strncmp(arg, "-xcode=", 7) == 0) {
1207 xlate(ctx->i_ae, arg + 7, xcode_tbl);
1208 if (strncmp(arg + 7, "pic", 3) == 0)
1209 pic = 1;
1210 break;
1211 }
1212 if (strncmp(arg, "-xcache=", 8) == 0)
1213 break;
1214 if (strncmp(arg, "-xcrossfile", 11) == 0)
1215 break;
1216 error(arg);
1217 break;
1218 case 'd':
1219 if (strcmp(arg, "-xdepend") == 0)
1220 break;
1221 if (strncmp(arg, "-xdebugformat=", 14) == 0)
1222 break;
1223 error(arg);
1224 break;
1225 case 'F':
1226 /*
1227 * Compile for mapfile reordering, or unused
1228 * section elimination, syntax can be -xF or
1229 * more complex, like -xF=%all -- ignore.
1230 */
1231 if (strncmp(arg, "-xF", 3) == 0)
1232 break;
1233 error(arg);
1234 break;
1235 case 'i':
1236 if (strncmp(arg, "-xinline", 8) == 0)
1237 /* No inlining; ignore */
1238 break;
1239 if (strcmp(arg, "-xildon") == 0 ||
1240 strcmp(arg, "-xildoff") == 0)
1241 /* No incremental linking; ignore */
1242 break;
1243 error(arg);
1244 break;
1245 #if defined(__x86)
1246 case 'm':
1247 if (strcmp(arg, "-xmodel=kernel") == 0) {
1248 newae(ctx->i_ae, "-ffreestanding");
1249 newae(ctx->i_ae, "-mno-red-zone");
1250 model = "-mcmodel=kernel";
1251 nolibc = 1;
1252 break;
1253 }
1254 error(arg);
1255 break;
1256 #endif /* __x86 */
1257 case 'M':
1258 if (strcmp(arg, "-xM") == 0) {
1259 newae(ctx->i_ae, "-M");
1260 break;
1261 }
1262 if (strcmp(arg, "-xM1") == 0) {
1263 newae(ctx->i_ae, "-MM");
1264 break;
1265 }
1266 error(arg);
1267 break;
1268 case 'n':
1269 if (strcmp(arg, "-xnolib") == 0) {
1270 nolibc = 1;
1271 break;
1272 }
1273 error(arg);
1274 break;
1275 case 'O':
1276 if (strncmp(arg, "-xO", 3) == 0) {
1277 size_t len = strlen(arg);
1278 char *s;
1279 int c = *(arg + 3);
1280 int level;
1281
1282 if (len != 4 || !isdigit(c))
1283 error(arg);
1284
1285 if ((s = malloc(len)) == NULL)
1286 nomem();
1287
1288 level = atoi(arg + 3);
1289 if (level > 5)
1290 error(arg);
1291 if (level >= 2) {
1292 /*
1293 * For gcc-3.4.x at -O2 we
1294 * need to disable optimizations
1295 * that break ON.
1296 */
1297 optim_disable(ctx->i_ae, level);
1298 /*
1299 * limit -xO3 to -O2 as well.
1300 */
1301 level = 2;
1302 }
1303 (void) snprintf(s, len, "-O%d", level);
1304 newae(ctx->i_ae, s);
1305 free(s);
1306 break;
1307 }
1308 error(arg);
1309 break;
1310 case 'p':
1311 if (strcmp(arg, "-xpentium") == 0) {
1312 newae(ctx->i_ae, "-march=pentium");
1313 break;
1314 }
1315 if (strcmp(arg, "-xpg") == 0) {
1316 newae(ctx->i_ae, "-pg");
1317 break;
1318 }
1319 error(arg);
1320 break;
1321 case 'r':
1322 if (strncmp(arg, "-xregs=", 7) == 0) {
1323 xlate(ctx->i_ae, arg + 7, xregs_tbl);
1324 break;
1325 }
1326 error(arg);
1327 break;
1328 case 's':
1329 if (strcmp(arg, "-xs") == 0 ||
1330 strcmp(arg, "-xspace") == 0 ||
1331 strcmp(arg, "-xstrconst") == 0)
1332 break;
1333 error(arg);
1334 break;
1335 case 't':
1336 if (strcmp(arg, "-xtransition") == 0) {
1337 newae(ctx->i_ae, "-Wtransition");
1338 break;
1339 }
1340 if (strcmp(arg, "-xtrigraphs=yes") == 0) {
1341 newae(ctx->i_ae, "-trigraphs");
1342 break;
1343 }
1344 if (strcmp(arg, "-xtrigraphs=no") == 0) {
1345 newae(ctx->i_ae, "-notrigraphs");
1346 break;
1347 }
1348 if (strncmp(arg, "-xtarget=", 9) == 0) {
1349 xlate(ctx->i_ae, arg + 9, xtarget_tbl);
1350 break;
1351 }
1352 error(arg);
1353 break;
1354 case 'e':
1355 case 'h':
1356 case 'l':
1357 default:
1358 error(arg);
1359 break;
1360 }
1361 break;
1362 case 'Y':
1363 if (arglen == 1) {
1364 if ((arg = *++ctx->i_oldargv) == NULL ||
1365 *arg == '\0')
1366 error("-Y");
1367 ctx->i_oldargc--;
1368 arglen = strlen(arg + 1);
1369 } else {
1370 arg += 2;
1371 }
1372 /* Just ignore -YS,... for now */
1373 if (strncmp(arg, "S,", 2) == 0)
1374 break;
1375 if (strncmp(arg, "l,", 2) == 0) {
1376 char *s = strdup(arg);
1377 s[0] = '-';
1378 s[1] = 'B';
1379 newae(ctx->i_ae, s);
1380 free(s);
1381 break;
1382 }
1383 if (strncmp(arg, "I,", 2) == 0) {
1384 char *s = strdup(arg);
1385 s[0] = '-';
1386 s[1] = 'I';
1387 newae(ctx->i_ae, "-nostdinc");
1388 newae(ctx->i_ae, s);
1389 free(s);
1390 break;
1391 }
1392 error(arg);
1393 break;
1394 case 'Q':
1395 /*
1396 * We could map -Qy into -Wl,-Qy etc.
1397 */
1398 default:
1399 error(arg);
1400 break;
1401 }
1402 }
1403
1404 free(nameflag);
1405
1406 if (c_files > 1 && (ctx->i_flags & CW_F_SHADOW) &&
1407 op != CW_O_PREPROCESS) {
1408 errx(2, "multiple source files are "
1409 "allowed only with -E or -P");
1410 }
1411
1412 /*
1413 * Make sure that we do not have any unintended interactions between
1414 * the xarch options passed in and the version of the Studio compiler
1415 * used.
1416 */
1417 if ((mflag & (SS11|SS12)) == (SS11|SS12)) {
1418 errx(2,
1419 "Conflicting \"-xarch=\" flags (both Studio 11 and 12)\n");
1420 }
1421
1422 switch (mflag) {
1423 case 0:
1424 /* FALLTHROUGH */
1425 case M32:
1426 #if defined(__sparc)
1427 /*
1428 * Only -m32 is defined and so put in the missing xarch
1429 * translation.
1430 */
1431 newae(ctx->i_ae, "-mcpu=v8");
1432 newae(ctx->i_ae, "-mno-v8plus");
1433 #endif
1434 break;
1435 case M64:
1436 #if defined(__sparc)
1437 /*
1438 * Only -m64 is defined and so put in the missing xarch
1439 * translation.
1440 */
1441 newae(ctx->i_ae, "-mcpu=v9");
1442 #endif
1443 break;
1444 case SS12:
1445 #if defined(__sparc)
1446 /* no -m32/-m64 flag used - this is an error for sparc builds */
1447 (void) fprintf(stderr, "No -m32/-m64 flag defined\n");
1448 exit(2);
1449 #endif
1450 break;
1451 case SS11:
1452 /* FALLTHROUGH */
1453 case (SS11|M32):
1454 case (SS11|M64):
1455 break;
1456 case (SS12|M32):
1457 #if defined(__sparc)
1458 /*
1459 * Need to add in further 32 bit options because with SS12
1460 * the xarch=sparcvis option can be applied to 32 or 64
1461 * bit, and so the translatation table (xtbl) cannot handle
1462 * that.
1463 */
1464 newae(ctx->i_ae, "-mv8plus");
1465 #endif
1466 break;
1467 case (SS12|M64):
1468 break;
1469 default:
1470 (void) fprintf(stderr,
1471 "Incompatible -xarch= and/or -m32/-m64 options used.\n");
1472 exit(2);
1473 }
1474 if (op == CW_O_LINK && (ctx->i_flags & CW_F_SHADOW))
1475 exit(0);
1476
1477 if (model && !pic)
1478 newae(ctx->i_ae, model);
1479 if (!nolibc)
1480 newae(ctx->i_ae, "-lc");
1481 if (!seen_o && (ctx->i_flags & CW_F_SHADOW)) {
1482 newae(ctx->i_ae, "-o");
1483 newae(ctx->i_ae, ctx->i_discard);
1484 }
1485 }
1486
1487 static void
1488 do_cc(cw_ictx_t *ctx)
1489 {
1490 int in_output = 0, seen_o = 0;
1491 cw_op_t op = CW_O_LINK;
1492 char *nameflag;
1493
1494 if (ctx->i_flags & CW_F_PROG) {
1495 newae(ctx->i_ae, "-V");
1496 return;
1497 }
1498
1499 if (asprintf(&nameflag, "-_%s=", ctx->i_compiler->c_name) == -1)
1500 nomem();
1501
1502 while (--ctx->i_oldargc > 0) {
1503 char *arg = *++ctx->i_oldargv;
1504
1505 if (strncmp(arg, "-_CC=", 5) == 0) {
1506 newae(ctx->i_ae, strchr(arg, '=') + 1);
1507 continue;
1508 }
1509
1510 if (*arg != '-') {
1511 if (in_output == 0 || !(ctx->i_flags & CW_F_SHADOW)) {
1512 newae(ctx->i_ae, arg);
1513 } else {
1514 in_output = 0;
1515 newae(ctx->i_ae, ctx->i_discard);
1516 }
1517 continue;
1518 }
1519 switch (*(arg + 1)) {
1520 case '_':
1521 if ((strncmp(arg, nameflag, strlen(nameflag)) == 0) ||
1522 (strncmp(arg, "-_cc=", 5) == 0) ||
1523 (strncmp(arg, "-_sun=", 6) == 0)) {
1524 newae(ctx->i_ae, strchr(arg, '=') + 1);
1525 }
1526 break;
1527
1528 case 'V':
1529 ctx->i_flags &= ~CW_F_ECHO;
1530 newae(ctx->i_ae, arg);
1531 break;
1532 case 'o':
1533 seen_o = 1;
1534 if (strlen(arg) == 2) {
1535 in_output = 1;
1536 newae(ctx->i_ae, arg);
1537 } else if (ctx->i_flags & CW_F_SHADOW) {
1538 newae(ctx->i_ae, "-o");
1539 newae(ctx->i_ae, ctx->i_discard);
1540 } else {
1541 newae(ctx->i_ae, arg);
1542 }
1543 break;
1544 case 'c':
1545 case 'S':
1546 if (strlen(arg) == 2)
1547 op = CW_O_COMPILE;
1548 newae(ctx->i_ae, arg);
1549 break;
1550 case 'E':
1551 case 'P':
1552 if (strlen(arg) == 2)
1553 op = CW_O_PREPROCESS;
1554 /*FALLTHROUGH*/
1555 default:
1556 newae(ctx->i_ae, arg);
1557 }
1558 }
1559
1560 free(nameflag);
1561
1562 if ((op == CW_O_LINK || op == CW_O_PREPROCESS) &&
1563 (ctx->i_flags & CW_F_SHADOW))
1564 exit(0);
1565
1566 if (!seen_o && (ctx->i_flags & CW_F_SHADOW)) {
1567 newae(ctx->i_ae, "-o");
1568 newae(ctx->i_ae, ctx->i_discard);
1569 }
1570 }
1571
1572 static void
1573 prepctx(cw_ictx_t *ctx)
1574 {
1575 newae(ctx->i_ae, ctx->i_compiler->c_path);
1576
1577 if (ctx->i_flags & CW_F_PROG) {
1578 (void) printf("%s: %s\n", (ctx->i_flags & CW_F_SHADOW) ?
1579 "shadow" : "primary", ctx->i_compiler->c_path);
1580 (void) fflush(stdout);
1581 }
1582
1583 if (!(ctx->i_flags & CW_F_XLATE))
1584 return;
1585
1586 switch (ctx->i_compiler->c_style) {
1587 case SUN:
1588 do_cc(ctx);
1589 break;
1590 case GNU:
1591 do_gcc(ctx);
1592 break;
1593 }
1594 }
1595
1596 static int
1597 invoke(cw_ictx_t *ctx)
1598 {
1599 char **newargv;
1600 int ac;
1601 struct ae *a;
1602
1603 if ((newargv = calloc(sizeof (*newargv), ctx->i_ae->ael_argc + 1)) ==
1604 NULL)
1605 nomem();
1606
1607 if (ctx->i_flags & CW_F_ECHO)
1608 (void) fprintf(stderr, "+ ");
1609
1610 for (ac = 0, a = ctx->i_ae->ael_head; a; a = a->ae_next, ac++) {
1611 newargv[ac] = a->ae_arg;
1612 if (ctx->i_flags & CW_F_ECHO)
1613 (void) fprintf(stderr, "%s ", a->ae_arg);
1614 if (a == ctx->i_ae->ael_tail)
1615 break;
1616 }
1617
1618 if (ctx->i_flags & CW_F_ECHO) {
1619 (void) fprintf(stderr, "\n");
1620 (void) fflush(stderr);
1621 }
1622
1623 if (!(ctx->i_flags & CW_F_EXEC))
1624 return (0);
1625
1626 /*
1627 * We must fix up the environment here so that the
1628 * dependency files are not trampled by the shadow compiler.
1629 */
1630 if ((ctx->i_flags & CW_F_SHADOW) &&
1631 (unsetenv("SUNPRO_DEPENDENCIES") != 0 ||
1632 unsetenv("DEPENDENCIES_OUTPUT") != 0)) {
1633 (void) fprintf(stderr, "error: environment setup failed: %s\n",
1634 strerror(errno));
1635 return (-1);
1636 }
1637
1638 (void) execv(newargv[0], newargv);
1639 warn("couldn't run %s", newargv[0]);
1640
1641 return (-1);
1642 }
1643
1644 static int
1645 reap(cw_ictx_t *ctx)
1646 {
1647 int status, ret = 0;
1648 char buf[1024];
1649 struct stat s;
1650
1651 /*
1652 * Only wait for one specific child.
1653 */
1654 if (ctx->i_pid <= 0)
1655 return (-1);
1656
1657 do {
1658 if (waitpid(ctx->i_pid, &status, 0) < 0) {
1659 warn("cannot reap child");
1660 return (-1);
1661 }
1662 if (status != 0) {
1663 if (WIFSIGNALED(status)) {
1664 ret = -WTERMSIG(status);
1665 break;
1666 } else if (WIFEXITED(status)) {
1667 ret = WEXITSTATUS(status);
1668 break;
1669 }
1670 }
1671 } while (!WIFEXITED(status) && !WIFSIGNALED(status));
1672
1673 (void) unlink(ctx->i_discard);
1674
1675 if (stat(ctx->i_stderr, &s) < 0) {
1676 warn("stat failed on child cleanup");
1677 return (-1);
1678 }
1679 if (s.st_size != 0) {
1680 FILE *f;
1681
1682 if ((f = fopen(ctx->i_stderr, "r")) != NULL) {
1683 while (fgets(buf, sizeof (buf), f))
1684 (void) fprintf(stderr, "%s", buf);
1685 (void) fflush(stderr);
1686 (void) fclose(f);
1687 }
1688 }
1689 (void) unlink(ctx->i_stderr);
1690 free(ctx->i_stderr);
1691
1692 /*
1693 * cc returns an error code when given -V; we want that to succeed.
1694 */
1695 if (ctx->i_flags & CW_F_PROG)
1696 return (0);
1697
1698 return (ret);
1699 }
1700
1701 static int
1702 exec_ctx(cw_ictx_t *ctx, int block)
1703 {
1704 char *file;
1705
1706 /*
1707 * To avoid offending cc's sensibilities, the name of its output
1708 * file must end in '.o'.
1709 */
1710 if ((file = tempnam(NULL, ".cw")) == NULL) {
1711 nomem();
1712 return (-1);
1713 }
1714 (void) strlcpy(ctx->i_discard, file, MAXPATHLEN);
1715 (void) strlcat(ctx->i_discard, ".o", MAXPATHLEN);
1716 free(file);
1717
1718 if ((ctx->i_stderr = tempnam(NULL, ".cw")) == NULL) {
1719 nomem();
1720 return (-1);
1721 }
1722
1723 if ((ctx->i_pid = fork()) == 0) {
1724 int fd;
1725
1726 (void) fclose(stderr);
1727 if ((fd = open(ctx->i_stderr, O_WRONLY | O_CREAT | O_EXCL,
1728 0666)) < 0) {
1729 err(1, "open failed for standard error");
1730 }
1731 if (dup2(fd, 2) < 0) {
1732 err(1, "dup2 failed for standard error");
1733 }
1734 if (fd != 2)
1735 (void) close(fd);
1736 if (freopen("/dev/fd/2", "w", stderr) == NULL) {
1737 err(1, "freopen failed for /dev/fd/2");
1738 }
1739 prepctx(ctx);
1740 exit(invoke(ctx));
1741 }
1742
1743 if (ctx->i_pid < 0) {
1744 err(1, "fork failed");
1745 }
1746
1747 if (block)
1748 return (reap(ctx));
1749
1750 return (0);
1751 }
1752
1753 static int
1754 parse_compiler(const char *spec, cw_compiler_t *compiler)
1755 {
1756 char *tspec, *token;
1757
1758 if ((tspec = strdup(spec)) == NULL)
1759 nomem();
1760
1761 if ((token = strsep(&tspec, ",")) == NULL)
1762 errx(1, "Compiler is missing a name: %s", spec);
1763 compiler->c_name = token;
1764
1765 if ((token = strsep(&tspec, ",")) == NULL)
1766 errx(1, "Compiler is missing a path: %s", spec);
1767 compiler->c_path = token;
1768
1769 if ((token = strsep(&tspec, ",")) == NULL)
1770 errx(1, "Compiler is missing a style: %s", spec);
1771
1772 if ((strcasecmp(token, "gnu") == 0) ||
1773 (strcasecmp(token, "gcc") == 0))
1774 compiler->c_style = GNU;
1775 else if ((strcasecmp(token, "sun") == 0) ||
1776 (strcasecmp(token, "cc") == 0))
1777 compiler->c_style = SUN;
1778 else
1779 errx(1, "unknown compiler style: %s", token);
1780
1781 if (tspec != NULL)
1782 errx(1, "Excess tokens in compiler: %s", spec);
1783
1784 return (0);
1785 }
1786
1787 int
1788 main(int argc, char **argv)
1789 {
1790 int ch;
1791 cw_compiler_t primary = { NULL, NULL, 0 };
1792 cw_compiler_t shadows[10];
1793 int nshadows = 0;
1794 int ret = 0;
1795 boolean_t do_serial = B_FALSE;
1796 boolean_t do_exec = B_FALSE;
1797 boolean_t vflg = B_FALSE;
1798 boolean_t Cflg = B_FALSE;
1799 boolean_t cflg = B_FALSE;
1800 boolean_t nflg = B_FALSE;
1801
1802 cw_ictx_t *main_ctx;
1803
1804 static struct option longopts[] = {
1805 { "compiler", no_argument, NULL, 'c' },
1806 { "noecho", no_argument, NULL, 'n' },
1807 { "primary", required_argument, NULL, 'p' },
1808 { "shadow", required_argument, NULL, 's' },
1809 { "versions", no_argument, NULL, 'v' },
1810 { NULL, 0, NULL, 0 },
1811 };
1812
1813
1814 if ((main_ctx = newictx()) == NULL)
1815 nomem();
1816
1817
1818 while ((ch = getopt_long(argc, argv, "C", longopts, NULL)) != -1) {
1819 switch (ch) {
1820 case 'c':
1821 cflg = B_TRUE;
1822 break;
1823 case 'C':
1824 Cflg = B_TRUE;
1825 break;
1826 case 'n':
1827 nflg = B_TRUE;
1828 break;
1829 case 'p':
1830 if (primary.c_path != NULL) {
1831 warnx("Only one primary compiler may "
1832 "be specified");
1833 usage();
1834 }
1835
1836 if (parse_compiler(optarg, &primary) != 0)
1837 errx(1, "Couldn't parse %s as a compiler spec",
1838 optarg);
1839 break;
1840 case 's':
1841 if (nshadows >= 10)
1842 errx(1, "May only use 10 shadows at "
1843 "the moment");
1844 if (parse_compiler(optarg, &shadows[nshadows]) != 0)
1845 errx(1, "Couldn't parse %s as a compiler spec",
1846 optarg);
1847 nshadows++;
1848 break;
1849 case 'v':
1850 vflg = B_TRUE;
1851 break;
1852 default:
1853 (void) fprintf(stderr, "Did you forget '--'?\n");
1854 usage();
1855 }
1856 }
1857
1858 if (primary.c_path == NULL) {
1859 warnx("A primary compiler must be specified");
1860 usage();
1861 }
1862
1863 do_serial = (getenv("CW_SHADOW_SERIAL") == NULL) ? B_FALSE : B_TRUE;
1864 do_exec = (getenv("CW_NO_EXEC") == NULL) ? B_TRUE : B_FALSE;
1865
1866 /* Leave room for argv[0] */
1867 argc -= (optind - 1);
1868 argv += (optind - 1);
1869
1870 main_ctx->i_oldargc = argc;
1871 main_ctx->i_oldargv = argv;
1872 main_ctx->i_flags = CW_F_XLATE;
1873 if (nflg == 0)
1874 main_ctx->i_flags |= CW_F_ECHO;
1875 if (do_exec)
1876 main_ctx->i_flags |= CW_F_EXEC;
1877 if (Cflg)
1878 main_ctx->i_flags |= CW_F_CXX;
1879 main_ctx->i_compiler = &primary;
1880
1881 if (cflg) {
1882 (void) fputs(primary.c_path, stdout);
1883 }
1884
1885 if (vflg) {
1886 (void) printf("cw version %s\n", CW_VERSION);
1887 (void) fflush(stdout);
1888 main_ctx->i_flags &= ~CW_F_ECHO;
1889 main_ctx->i_flags |= CW_F_PROG|CW_F_EXEC;
1890 do_serial = 1;
1891 }
1892
1893 ret |= exec_ctx(main_ctx, do_serial);
1894
1895 for (int i = 0; i < nshadows; i++) {
1896 cw_ictx_t *shadow_ctx;
1897
1898 if ((shadow_ctx = newictx()) == NULL)
1899 nomem();
1900
1901 memcpy(shadow_ctx, main_ctx, sizeof (cw_ictx_t));
1902
1903 shadow_ctx->i_flags |= CW_F_SHADOW;
1904 shadow_ctx->i_compiler = &shadows[i];
1905
1906 /* XXX: Would be nice to run these parallel, too */
1907 ret |= exec_ctx(shadow_ctx, 1);
1908 }
1909
1910 if (!do_serial)
1911 ret |= reap(main_ctx);
1912
1913 return (ret);
1914 }