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
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,
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
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");
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);
1404 char *s = strdup(arg);
1405 s[0] = '-';
1406 s[1] = 'I';
1407 newae(ctx->i_ae, "-nostdinc");
1408 newae(ctx->i_ae, s);
1409 free(s);
1410 break;
1411 }
1412 error(arg);
1413 break;
1414 case 'Q':
1415 /*
1416 * We could map -Qy into -Wl,-Qy etc.
1417 */
1418 default:
1419 error(arg);
1420 break;
1421 }
1422 }
1423
1424 if (c_files > 1 && (ctx->i_flags & CW_F_SHADOW) &&
1425 op != CW_O_PREPROCESS) {
1426 (void) fprintf(stderr, "%s: error: multiple source files are "
1427 "allowed only with -E or -P\n", progname);
1428 exit(2);
1429 }
1430
1431 /*
1432 * Make sure that we do not have any unintended interactions between
1433 * the xarch options passed in and the version of the Studio compiler
1434 * used.
1435 */
1436 if ((mflag & (SS11|SS12)) == (SS11|SS12)) {
1437 (void) fprintf(stderr,
1438 "Conflicting \"-xarch=\" flags (both Studio 11 and 12)\n");
1439 exit(2);
1440 }
1441
1442 switch (mflag) {
1443 case 0:
1444 /* FALLTHROUGH */
1445 case M32:
1446 #if defined(__sparc)
1447 /*
1448 * Only -m32 is defined and so put in the missing xarch
1449 * translation.
1450 */
1451 newae(ctx->i_ae, "-mcpu=v8");
1452 newae(ctx->i_ae, "-mno-v8plus");
1453 #endif
1454 break;
1455 case M64:
1456 #if defined(__sparc)
1457 /*
1458 * Only -m64 is defined and so put in the missing xarch
1459 * translation.
1474 case (SS11|M64):
1475 break;
1476 case (SS12|M32):
1477 #if defined(__sparc)
1478 /*
1479 * Need to add in further 32 bit options because with SS12
1480 * the xarch=sparcvis option can be applied to 32 or 64
1481 * bit, and so the translatation table (xtbl) cannot handle
1482 * that.
1483 */
1484 newae(ctx->i_ae, "-mv8plus");
1485 #endif
1486 break;
1487 case (SS12|M64):
1488 break;
1489 default:
1490 (void) fprintf(stderr,
1491 "Incompatible -xarch= and/or -m32/-m64 options used.\n");
1492 exit(2);
1493 }
1494 if (op == CW_O_LINK && (ctx->i_flags & CW_F_SHADOW))
1495 exit(0);
1496
1497 if (model && !pic)
1498 newae(ctx->i_ae, model);
1499 if (!nolibc)
1500 newae(ctx->i_ae, "-lc");
1501 if (!seen_o && (ctx->i_flags & CW_F_SHADOW)) {
1502 newae(ctx->i_ae, "-o");
1503 newae(ctx->i_ae, ctx->i_discard);
1504 }
1505 }
1506
1507 static void
1508 do_cc(cw_ictx_t *ctx)
1509 {
1510 int in_output = 0, seen_o = 0;
1511 cw_op_t op = CW_O_LINK;
1512
1513 if (ctx->i_flags & CW_F_PROG) {
1514 newae(ctx->i_ae, "-V");
1515 return;
1516 }
1517
1518 while (--ctx->i_oldargc > 0) {
1519 char *arg = *++ctx->i_oldargv;
1520
1521 if (*arg != '-') {
1522 if (in_output == 0 || !(ctx->i_flags & CW_F_SHADOW)) {
1523 newae(ctx->i_ae, arg);
1524 } else {
1525 in_output = 0;
1526 newae(ctx->i_ae, ctx->i_discard);
1527 }
1528 continue;
1529 }
1530 switch (*(arg + 1)) {
1531 case '_':
1532 if (strcmp(arg, "-_noecho") == 0) {
1533 ctx->i_flags &= ~CW_F_ECHO;
1534 } else if (strncmp(arg, "-_cc=", 5) == 0 ||
1535 strncmp(arg, "-_CC=", 5) == 0) {
1536 newae(ctx->i_ae, arg + 5);
1537 } else if (strncmp(arg, "-_gcc=", 6) != 0 &&
1538 strncmp(arg, "-_g++=", 6) != 0) {
1539 (void) fprintf(stderr,
1540 "%s: invalid argument '%s'\n", progname,
1541 arg);
1542 exit(2);
1543 }
1544 break;
1545 case 'V':
1546 ctx->i_flags &= ~CW_F_ECHO;
1547 newae(ctx->i_ae, arg);
1548 break;
1549 case 'o':
1550 seen_o = 1;
1551 if (strlen(arg) == 2) {
1552 in_output = 1;
1553 newae(ctx->i_ae, arg);
1554 } else if (ctx->i_flags & CW_F_SHADOW) {
1555 newae(ctx->i_ae, "-o");
1556 newae(ctx->i_ae, ctx->i_discard);
1557 } else {
1558 newae(ctx->i_ae, arg);
1559 }
1560 break;
1561 case 'c':
1562 case 'S':
1563 if (strlen(arg) == 2)
1564 op = CW_O_COMPILE;
1565 newae(ctx->i_ae, arg);
1566 break;
1567 case 'E':
1568 case 'P':
1569 if (strlen(arg) == 2)
1570 op = CW_O_PREPROCESS;
1571 /*FALLTHROUGH*/
1572 default:
1573 newae(ctx->i_ae, arg);
1574 }
1575 }
1576
1577 if ((op == CW_O_LINK || op == CW_O_PREPROCESS) &&
1578 (ctx->i_flags & CW_F_SHADOW))
1579 exit(0);
1580
1581 if (!seen_o && (ctx->i_flags & CW_F_SHADOW)) {
1582 newae(ctx->i_ae, "-o");
1583 newae(ctx->i_ae, ctx->i_discard);
1584 }
1585 }
1586
1587 static void
1588 prepctx(cw_ictx_t *ctx)
1589 {
1590 const char *dir = NULL, *cmd;
1591 char *program = NULL;
1592 size_t len;
1593
1594 switch (CIDX(CC(ctx), ctx->i_flags)) {
1595 case CIDX(CW_C_CC, 0):
1596 program = getenv("CW_CC");
1597 dir = getenv("CW_CC_DIR");
1598 break;
1599 case CIDX(CW_C_CC, CW_F_CXX):
1600 program = getenv("CW_CPLUSPLUS");
1601 dir = getenv("CW_CPLUSPLUS_DIR");
1602 break;
1603 case CIDX(CW_C_GCC, 0):
1604 program = getenv("CW_GCC");
1605 dir = getenv("CW_GCC_DIR");
1606 break;
1607 case CIDX(CW_C_GCC, CW_F_CXX):
1608 program = getenv("CW_GPLUSPLUS");
1609 dir = getenv("CW_GPLUSPLUS_DIR");
1610 break;
1611 }
1612
1613 if (program == NULL) {
1614 if (dir == NULL)
1615 dir = default_dir[CC(ctx)];
1616 cmd = cmds[CIDX(CC(ctx), ctx->i_flags)];
1617 len = strlen(dir) + strlen(cmd) + 2;
1618 if ((program = malloc(len)) == NULL)
1619 nomem();
1620 (void) snprintf(program, len, "%s/%s", dir, cmd);
1621 }
1622
1623 newae(ctx->i_ae, program);
1624
1625 if (ctx->i_flags & CW_F_PROG) {
1626 (void) printf("%s: %s\n", (ctx->i_flags & CW_F_SHADOW) ?
1627 "shadow" : "primary", program);
1628 (void) fflush(stdout);
1629 }
1630
1631 if (!(ctx->i_flags & CW_F_XLATE))
1632 return;
1633
1634 switch (CC(ctx)) {
1635 case CW_C_CC:
1636 do_cc(ctx);
1637 break;
1638 case CW_C_GCC:
1639 do_gcc(ctx);
1640 break;
1641 }
1642 }
1643
1644 static int
1645 invoke(cw_ictx_t *ctx)
1646 {
1647 char **newargv;
1648 int ac;
1649 struct ae *a;
1650
1651 if ((newargv = calloc(sizeof (*newargv), ctx->i_ae->ael_argc + 1)) ==
1652 NULL)
1653 nomem();
1654
1655 if (ctx->i_flags & CW_F_ECHO)
1656 (void) fprintf(stderr, "+ ");
1657
1658 for (ac = 0, a = ctx->i_ae->ael_head; a; a = a->ae_next, ac++) {
1659 newargv[ac] = a->ae_arg;
1660 if (ctx->i_flags & CW_F_ECHO)
1661 (void) fprintf(stderr, "%s ", a->ae_arg);
1662 if (a == ctx->i_ae->ael_tail)
1663 break;
1664 }
1665
1666 if (ctx->i_flags & CW_F_ECHO) {
1667 (void) fprintf(stderr, "\n");
1668 (void) fflush(stderr);
1669 }
1670
1671 if (!(ctx->i_flags & CW_F_EXEC))
1672 return (0);
1673
1674 /*
1675 * We must fix up the environment here so that the
1676 * dependency files are not trampled by the shadow compiler.
1677 */
1678 if ((ctx->i_flags & CW_F_SHADOW) &&
1679 (unsetenv("SUNPRO_DEPENDENCIES") != 0 ||
1680 unsetenv("DEPENDENCIES_OUTPUT") != 0)) {
1681 (void) fprintf(stderr, "error: environment setup failed: %s\n",
1682 strerror(errno));
1683 return (-1);
1684 }
1685
1686 (void) execv(newargv[0], newargv);
1687 cw_perror("couldn't run %s", newargv[0]);
1688
1689 return (-1);
1690 }
1691
1692 static int
1693 reap(cw_ictx_t *ctx)
1694 {
1695 int status, ret = 0;
1696 char buf[1024];
1697 struct stat s;
1698
1699 /*
1700 * Only wait for one specific child.
1701 */
1702 if (ctx->i_pid <= 0)
1703 return (-1);
1704
1705 do {
1706 if (waitpid(ctx->i_pid, &status, 0) < 0) {
1707 cw_perror("cannot reap child");
1708 return (-1);
1709 }
1710 if (status != 0) {
1711 if (WIFSIGNALED(status)) {
1712 ret = -WTERMSIG(status);
1713 break;
1714 } else if (WIFEXITED(status)) {
1715 ret = WEXITSTATUS(status);
1716 break;
1717 }
1718 }
1719 } while (!WIFEXITED(status) && !WIFSIGNALED(status));
1720
1721 (void) unlink(ctx->i_discard);
1722
1723 if (stat(ctx->i_stderr, &s) < 0) {
1724 cw_perror("stat failed on child cleanup");
1725 return (-1);
1726 }
1727 if (s.st_size != 0) {
1728 FILE *f;
1729
1730 if ((f = fopen(ctx->i_stderr, "r")) != NULL) {
1731 while (fgets(buf, sizeof (buf), f))
1732 (void) fprintf(stderr, "%s", buf);
1733 (void) fflush(stderr);
1734 (void) fclose(f);
1735 }
1736 }
1737 (void) unlink(ctx->i_stderr);
1738 free(ctx->i_stderr);
1739
1740 /*
1741 * cc returns an error code when given -V; we want that to succeed.
1742 */
1743 if (ctx->i_flags & CW_F_PROG)
1744 return (0);
1757 */
1758 if ((file = tempnam(NULL, ".cw")) == NULL) {
1759 nomem();
1760 return (-1);
1761 }
1762 (void) strlcpy(ctx->i_discard, file, MAXPATHLEN);
1763 (void) strlcat(ctx->i_discard, ".o", MAXPATHLEN);
1764 free(file);
1765
1766 if ((ctx->i_stderr = tempnam(NULL, ".cw")) == NULL) {
1767 nomem();
1768 return (-1);
1769 }
1770
1771 if ((ctx->i_pid = fork()) == 0) {
1772 int fd;
1773
1774 (void) fclose(stderr);
1775 if ((fd = open(ctx->i_stderr, O_WRONLY | O_CREAT | O_EXCL,
1776 0666)) < 0) {
1777 cw_perror("open failed for standard error");
1778 exit(1);
1779 }
1780 if (dup2(fd, 2) < 0) {
1781 cw_perror("dup2 failed for standard error");
1782 exit(1);
1783 }
1784 if (fd != 2)
1785 (void) close(fd);
1786 if (freopen("/dev/fd/2", "w", stderr) == NULL) {
1787 cw_perror("freopen failed for /dev/fd/2");
1788 exit(1);
1789 }
1790 prepctx(ctx);
1791 exit(invoke(ctx));
1792 }
1793
1794 if (ctx->i_pid < 0) {
1795 cw_perror("fork failed");
1796 return (1);
1797 }
1798
1799 if (block)
1800 return (reap(ctx));
1801
1802 return (0);
1803 }
1804
1805 int
1806 main(int argc, char **argv)
1807 {
1808 cw_ictx_t *ctx = newictx();
1809 cw_ictx_t *ctx_shadow = newictx();
1810 const char *dir;
1811 int do_serial, do_shadow;
1812 int ret = 0;
1813
1814 if ((progname = strrchr(argv[0], '/')) == NULL)
1815 progname = argv[0];
1816 else
1817 progname++;
1818
1819 if (ctx == NULL || ctx_shadow == NULL)
1820 nomem();
1821
1822 ctx->i_flags = CW_F_ECHO|CW_F_XLATE;
1823
1824 /*
1825 * Figure out where to get our tools from. This depends on
1826 * the environment variables set at run time.
1827 */
1828 if ((dir = getenv("SPRO_VROOT")) != NULL) {
1829 (void) snprintf(default_dir[CW_C_CC], MAXPATHLEN,
1830 "%s/bin", dir);
1831 } else if ((dir = getenv("SPRO_ROOT")) != NULL) {
1832 (void) snprintf(default_dir[CW_C_CC], MAXPATHLEN,
1833 "%s/SS12/bin", dir);
1834 } else if ((dir = getenv("BUILD_TOOLS")) != NULL) {
1835 (void) snprintf(default_dir[CW_C_CC], MAXPATHLEN,
1836 "%s/SUNWspro/SS12/bin", dir);
1837 }
1838
1839 if ((dir = getenv("GNUC_ROOT")) != NULL) {
1840 (void) snprintf(default_dir[CW_C_GCC], MAXPATHLEN,
1841 "%s/bin", dir);
1842 }
1843
1844 do_shadow = (getenv("CW_NO_SHADOW") ? 0 : 1);
1845 do_serial = (getenv("CW_SHADOW_SERIAL") ? 1 : 0);
1846
1847 if (getenv("CW_NO_EXEC") == NULL)
1848 ctx->i_flags |= CW_F_EXEC;
1849
1850 /*
1851 * The first argument must be one of "-_cc", "-_gcc", "-_CC", or "-_g++"
1852 */
1853 if (argc == 1)
1854 usage();
1855 argc--;
1856 argv++;
1857 if (strcmp(argv[0], "-_cc") == 0) {
1858 ctx->i_compiler = CW_C_CC;
1859 } else if (strcmp(argv[0], "-_gcc") == 0) {
1860 ctx->i_compiler = CW_C_GCC;
1861 } else if (strcmp(argv[0], "-_CC") == 0) {
1862 ctx->i_compiler = CW_C_CC;
1863 ctx->i_flags |= CW_F_CXX;
1864 } else if (strcmp(argv[0], "-_g++") == 0) {
1865 ctx->i_compiler = CW_C_GCC;
1866 ctx->i_flags |= CW_F_CXX;
1867 } else {
1868 /* assume "-_gcc" by default */
1869 argc++;
1870 argv--;
1871 ctx->i_compiler = CW_C_GCC;
1872 }
1873
1874 /*
1875 * -_compiler - tell us the path to the primary compiler only
1876 */
1877 if (argc > 1 && strcmp(argv[1], "-_compiler") == 0) {
1878 ctx->i_flags &= ~CW_F_XLATE;
1879 prepctx(ctx);
1880 (void) printf("%s\n", ctx->i_ae->ael_head->ae_arg);
1881 return (0);
1882 }
1883
1884 /*
1885 * -_versions - tell us the cw version, paths to all compilers, and
1886 * ask each for its version if we know how.
1887 */
1888 if (argc > 1 && strcmp(argv[1], "-_versions") == 0) {
1889 (void) printf("cw version %s", CW_VERSION);
1890 if (!do_shadow)
1891 (void) printf(" (SHADOW MODE DISABLED)");
1892 (void) printf("\n");
1893 (void) fflush(stdout);
1894 ctx->i_flags &= ~CW_F_ECHO;
1895 ctx->i_flags |= CW_F_PROG|CW_F_EXEC;
1896 argc--;
1897 argv++;
1898 do_serial = 1;
1899 }
1900
1901 ctx->i_oldargc = argc;
1902 ctx->i_oldargv = argv;
1903
1904 ret |= exec_ctx(ctx, do_serial);
1905
1906 if (do_shadow) {
1907 (void) memcpy(ctx_shadow, ctx, sizeof (cw_ictx_t));
1908 ctx_shadow->i_flags |= CW_F_SHADOW;
1909 ret |= exec_ctx(ctx_shadow, 1);
1910 }
1911
1912 if (!do_serial)
1913 ret |= reap(ctx);
1914
1915 return (ret);
1916 }
|
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
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 struct cw_ictx *i_next;
346 cw_compiler_t *i_compiler;
347 struct aelist *i_ae;
348 uint32_t i_flags;
349 int i_oldargc;
350 char **i_oldargv;
351 pid_t i_pid;
352 char i_discard[MAXPATHLEN];
353 char *i_stderr;
354 } cw_ictx_t;
355
356 /*
357 * Status values to indicate which Studio compiler and associated
358 * flags are being used.
359 */
360 #define M32 0x01 /* -m32 - only on Studio 12 */
361 #define M64 0x02 /* -m64 - only on Studio 12 */
362 #define SS11 0x100 /* Studio 11 */
363 #define SS12 0x200 /* Studio 12 */
364
365 #define TRANS_ENTRY 5
366 /*
367 * Translation table definition for the -xarch= flag. The "x_arg"
368 * value is translated into the appropriate gcc flags according
369 * to the values in x_trans[n]. The x_flags indicates what compiler
370 * is being used and what flags have been set via the use of
371 * "x_arg".
372 */
373 typedef struct xarch_table {
374 char *x_arg;
375 int x_flags;
376 char *x_trans[TRANS_ENTRY];
377 } xarch_table_t;
378
379 /*
380 * The translation table for the -xarch= flag used in the Studio compilers.
381 */
382 static const xarch_table_t xtbl[] = {
383 #if defined(__x86)
384 { "generic", SS11, {NULL} },
385 { "generic64", (SS11|M64), { "-m64", "-mtune=opteron" } },
386 { "amd64", (SS11|M64), { "-m64", "-mtune=opteron" } },
387 { "386", SS11, { "-march=i386" } },
388 { "pentium_pro", SS11, { "-march=pentiumpro" } },
389 { "sse", SS11, { "-msse", "-mfpmath=sse" } },
390 { "sse2", SS11, { "-msse2", "-mfpmath=sse" } },
391 #elif defined(__sparc)
392 { "generic", (SS11|M32), { "-m32", "-mcpu=v8" } },
393 { "generic64", (SS11|M64), { "-m64", "-mcpu=v9" } },
394 { "v8", (SS11|M32), { "-m32", "-mcpu=v8", "-mno-v8plus" } },
395 { "v8plus", (SS11|M32), { "-m32", "-mcpu=v9", "-mv8plus" } },
396 { "v8plusa", (SS11|M32), { "-m32", "-mcpu=ultrasparc", "-mv8plus",
397 "-mvis" } },
398 { "v8plusb", (SS11|M32), { "-m32", "-mcpu=ultrasparc3", "-mv8plus",
399 "-mvis" } },
400 { "v9", (SS11|M64), { "-m64", "-mcpu=v9" } },
401 { "v9a", (SS11|M64), { "-m64", "-mcpu=ultrasparc", "-mvis" } },
402 { "v9b", (SS11|M64), { "-m64", "-mcpu=ultrasparc3", "-mvis" } },
403 { "sparc", SS12, { "-mcpu=v9", "-mv8plus" } },
404 { "sparcvis", SS12, { "-mcpu=ultrasparc", "-mvis" } },
405 { "sparcvis2", SS12, { "-mcpu=ultrasparc3", "-mvis" } }
406 #endif
407 };
408
409 static int xtbl_size = sizeof (xtbl) / sizeof (xarch_table_t);
410
411 static const char *xchip_tbl[] = {
412 #if defined(__x86)
413 "386", "-mtune=i386", NULL,
414 "486", "-mtune=i486", NULL,
415 "pentium", "-mtune=pentium", NULL,
416 "pentium_pro", "-mtune=pentiumpro", NULL,
417 #elif defined(__sparc)
418 "super", "-mtune=supersparc", NULL,
419 "ultra", "-mtune=ultrasparc", NULL,
420 "ultra3", "-mtune=ultrasparc3", NULL,
421 #endif
422 NULL, NULL
423 };
424
425 static const char *xcode_tbl[] = {
426 #if defined(__sparc)
427 "abs32", "-fno-pic", "-mcmodel=medlow", NULL,
428 "abs44", "-fno-pic", "-mcmodel=medmid", NULL,
429 "abs64", "-fno-pic", "-mcmodel=medany", NULL,
430 "pic13", "-fpic", NULL,
436 static const char *xtarget_tbl[] = {
437 #if defined(__x86)
438 "pentium_pro", "-march=pentiumpro", NULL,
439 #endif /* __x86 */
440 NULL, NULL
441 };
442
443 static const char *xregs_tbl[] = {
444 #if defined(__sparc)
445 "appl", "-mapp-regs", NULL,
446 "no%appl", "-mno-app-regs", NULL,
447 "float", "-mfpu", NULL,
448 "no%float", "-mno-fpu", NULL,
449 #endif /* __sparc */
450 NULL, NULL
451 };
452
453 static void
454 nomem(void)
455 {
456 errx(1, "out of memory");
457 }
458
459 static void
460 newae(struct aelist *ael, const char *arg)
461 {
462 struct ae *ae;
463
464 if ((ae = calloc(sizeof (*ae), 1)) == NULL)
465 nomem();
466 ae->ae_arg = strdup(arg);
467 if (ael->ael_tail == NULL)
468 ael->ael_head = ae;
469 else
470 ael->ael_tail->ae_next = ae;
471 ael->ael_tail = ae;
472 ael->ael_argc++;
473 }
474
475 static cw_ictx_t *
476 newictx(void)
477 {
478 cw_ictx_t *ctx = calloc(sizeof (cw_ictx_t), 1);
479 if (ctx)
480 if ((ctx->i_ae = calloc(sizeof (struct aelist), 1)) == NULL) {
481 free(ctx);
482 return (NULL);
483 }
484
485 return (ctx);
486 }
487
488 static void
489 error(const char *arg)
490 {
491 errx(2, "error: mapping failed at or near arg '%s'", arg);
492 }
493
494 /*
495 * Add the current favourite set of warnings to the gcc invocation.
496 */
497 static void
498 warnings(struct aelist *h)
499 {
500 static int warningsonce;
501
502 if (warningsonce++)
503 return;
504
505 /*
506 * Enable as many warnings as exist, then disable those that we never
507 * ever want.
508 */
509 newae(h, "-Wall");
510 newae(h, "-Wextra");
511 }
512
513 static void
514 optim_disable(struct aelist *h, int level)
515 {
516 if (level >= 2) {
517 newae(h, "-fno-strict-aliasing");
518 newae(h, "-fno-unit-at-a-time");
519 newae(h, "-fno-optimize-sibling-calls");
520 }
521 }
522
523 /* ARGSUSED */
524 static void
525 Xamode(struct aelist __unused *h)
526 {
527 }
528
529 static void
530 Xcmode(struct aelist *h)
531 {
532 static int xconce;
533
534 if (xconce++)
535 return;
536
537 newae(h, "-ansi");
538 newae(h, "-pedantic-errors");
539 }
540
541 static void
542 Xsmode(struct aelist *h)
543 {
544 static int xsonce;
545
546 if (xsonce++)
547 return;
548
549 newae(h, "-traditional");
550 newae(h, "-traditional-cpp");
551 }
552
553 static void
554 usage()
555 {
556 extern char *__progname;
557 (void) fprintf(stderr,
558 "usage: %s [-C] [--versions] --primary <compiler> "
559 "[--shadow <compiler>]... -- cflags...\n",
560 __progname);
561 (void) fprintf(stderr, "compilers take the form: name,path,style\n"
562 " - name: a unique name usable in flag specifiers\n"
563 " - path: path to the compiler binary\n"
564 " - style: the style of flags expected: either sun or gnu\n");
565 exit(2);
566 }
567
568 static int
569 xlate_xtb(struct aelist *h, const char *xarg)
570 {
571 int i, j;
572
573 for (i = 0; i < xtbl_size; i++) {
574 if (strcmp(xtbl[i].x_arg, xarg) == 0)
575 break;
576 }
577
578 /*
579 * At the end of the table and so no matching "arg" entry
580 * found and so this must be a bad -xarch= flag.
581 */
582 if (i == xtbl_size)
583 error(xarg);
584
603
604 if (*table == NULL)
605 error(xarg);
606
607 table++;
608
609 while (*table != NULL) {
610 newae(h, *table);
611 table++;
612 }
613 }
614
615 static void
616 do_gcc(cw_ictx_t *ctx)
617 {
618 int c;
619 int pic = 0, nolibc = 0;
620 int in_output = 0, seen_o = 0, c_files = 0;
621 cw_op_t op = CW_O_LINK;
622 char *model = NULL;
623 char *nameflag;
624 int mflag = 0;
625
626 if (ctx->i_flags & CW_F_PROG) {
627 newae(ctx->i_ae, "--version");
628 return;
629 }
630
631 newae(ctx->i_ae, "-fident");
632 newae(ctx->i_ae, "-finline");
633 newae(ctx->i_ae, "-fno-inline-functions");
634 newae(ctx->i_ae, "-fno-builtin");
635 newae(ctx->i_ae, "-fno-asm");
636 newae(ctx->i_ae, "-fdiagnostics-show-option");
637 newae(ctx->i_ae, "-nodefaultlibs");
638
639 #if defined(__sparc)
640 /*
641 * The SPARC ldd and std instructions require 8-byte alignment of
642 * their address operand. gcc correctly uses them only when the
643 * ABI requires 8-byte alignment; unfortunately we have a number of
644 * pieces of buggy code that doesn't conform to the ABI. This
645 * flag makes gcc work more like Studio with -xmemalign=4.
646 */
647 newae(ctx->i_ae, "-mno-integer-ldd-std");
648 #endif
649
650 /*
651 * This is needed because 'u' is defined
652 * under a conditional on 'sun'. Should
653 * probably just remove the conditional,
654 * or make it be dependent on '__sun'.
655 *
656 * -Dunix is also missing in enhanced ANSI mode
657 */
658 newae(ctx->i_ae, "-D__sun");
659
660 if (asprintf(&nameflag, "-_%s=", ctx->i_compiler->c_name) == -1)
661 nomem();
662
663 /*
664 * Walk the argument list, translating as we go ..
665 */
666 while (--ctx->i_oldargc > 0) {
667 char *arg = *++ctx->i_oldargv;
668 size_t arglen = strlen(arg);
669
670 if (*arg == '-') {
671 arglen--;
672 } else {
673 /*
674 * Discard inline files that gcc doesn't grok
675 */
676 if (!in_output && arglen > 3 &&
677 strcmp(arg + arglen - 3, ".il") == 0)
678 continue;
679
680 if (!in_output && arglen > 2 &&
681 arg[arglen - 2] == '.' &&
682 (arg[arglen - 1] == 'S' || arg[arglen - 1] == 's' ||
683 arg[arglen - 1] == 'c' || arg[arglen - 1] == 'i'))
684 c_files++;
685
686 /*
687 * Otherwise, filenames and partial arguments
688 * are passed through for gcc to chew on. However,
689 * output is always discarded for the secondary
690 * compiler.
691 */
692 if ((ctx->i_flags & CW_F_SHADOW) && in_output)
693 newae(ctx->i_ae, ctx->i_discard);
694 else
695 newae(ctx->i_ae, arg);
696 in_output = 0;
697 continue;
698 }
699
700 if (ctx->i_flags & CW_F_CXX) {
701 if (strncmp(arg, "-_g++=", 6) == 0) {
702 newae(ctx->i_ae, strchr(arg, '=') + 1);
703 continue;
704 }
705 if (strncmp(arg, "-compat=", 8) == 0) {
706 /* discard -compat=4 and -compat=5 */
707 continue;
708 }
709 if (strcmp(arg, "-Qoption") == 0) {
710 /* discard -Qoption and its two arguments */
711 if (ctx->i_oldargc < 3)
712 error(arg);
713 ctx->i_oldargc -= 2;
714 ctx->i_oldargv += 2;
715 continue;
716 }
717 if (strcmp(arg, "-xwe") == 0) {
718 /* turn warnings into errors */
719 newae(ctx->i_ae, "-Werror");
720 continue;
721 }
722 if (strcmp(arg, "-noex") == 0) {
723 /* no exceptions */
724 newae(ctx->i_ae, "-fno-exceptions");
739 if (strcmp(arg, "-norunpath") == 0) {
740 /* gcc has no corresponding option */
741 continue;
742 }
743 if (strcmp(arg, "-nolib") == 0) {
744 /* -nodefaultlibs is on by default */
745 nolibc = 1;
746 continue;
747 }
748 #if defined(__sparc)
749 if (strcmp(arg, "-cg92") == 0) {
750 mflag |= xlate_xtb(ctx->i_ae, "v8");
751 xlate(ctx->i_ae, "super", xchip_tbl);
752 continue;
753 }
754 #endif /* __sparc */
755 }
756
757 switch ((c = arg[1])) {
758 case '_':
759 if ((strncmp(arg, nameflag, strlen(nameflag)) == 0) ||
760 (strncmp(arg, "-_gcc=", 6) == 0) ||
761 (strncmp(arg, "-_gnu=", 6) == 0)) {
762 newae(ctx->i_ae, strchr(arg, '=') + 1);
763 }
764 break;
765 case '#':
766 if (arglen == 1) {
767 newae(ctx->i_ae, "-v");
768 break;
769 }
770 error(arg);
771 break;
772 case 'g':
773 newae(ctx->i_ae, "-gdwarf-2");
774 break;
775 case 'E':
776 if (arglen == 1) {
777 newae(ctx->i_ae, "-xc");
778 newae(ctx->i_ae, arg);
779 op = CW_O_PREPROCESS;
780 nolibc = 1;
781 break;
782 }
783 error(arg);
1383 char *s = strdup(arg);
1384 s[0] = '-';
1385 s[1] = 'I';
1386 newae(ctx->i_ae, "-nostdinc");
1387 newae(ctx->i_ae, s);
1388 free(s);
1389 break;
1390 }
1391 error(arg);
1392 break;
1393 case 'Q':
1394 /*
1395 * We could map -Qy into -Wl,-Qy etc.
1396 */
1397 default:
1398 error(arg);
1399 break;
1400 }
1401 }
1402
1403 free(nameflag);
1404
1405 if (c_files > 1 && (ctx->i_flags & CW_F_SHADOW) &&
1406 op != CW_O_PREPROCESS) {
1407 errx(2, "multiple source files are "
1408 "allowed only with -E or -P");
1409 }
1410
1411 /*
1412 * Make sure that we do not have any unintended interactions between
1413 * the xarch options passed in and the version of the Studio compiler
1414 * used.
1415 */
1416 if ((mflag & (SS11|SS12)) == (SS11|SS12)) {
1417 errx(2,
1418 "Conflicting \"-xarch=\" flags (both Studio 11 and 12)\n");
1419 }
1420
1421 switch (mflag) {
1422 case 0:
1423 /* FALLTHROUGH */
1424 case M32:
1425 #if defined(__sparc)
1426 /*
1427 * Only -m32 is defined and so put in the missing xarch
1428 * translation.
1429 */
1430 newae(ctx->i_ae, "-mcpu=v8");
1431 newae(ctx->i_ae, "-mno-v8plus");
1432 #endif
1433 break;
1434 case M64:
1435 #if defined(__sparc)
1436 /*
1437 * Only -m64 is defined and so put in the missing xarch
1438 * translation.
1453 case (SS11|M64):
1454 break;
1455 case (SS12|M32):
1456 #if defined(__sparc)
1457 /*
1458 * Need to add in further 32 bit options because with SS12
1459 * the xarch=sparcvis option can be applied to 32 or 64
1460 * bit, and so the translatation table (xtbl) cannot handle
1461 * that.
1462 */
1463 newae(ctx->i_ae, "-mv8plus");
1464 #endif
1465 break;
1466 case (SS12|M64):
1467 break;
1468 default:
1469 (void) fprintf(stderr,
1470 "Incompatible -xarch= and/or -m32/-m64 options used.\n");
1471 exit(2);
1472 }
1473
1474 if ((op == CW_O_LINK || op == CW_O_PREPROCESS) &&
1475 (ctx->i_flags & CW_F_SHADOW))
1476 exit(0);
1477
1478 if (model && !pic)
1479 newae(ctx->i_ae, model);
1480 if (!nolibc)
1481 newae(ctx->i_ae, "-lc");
1482 if (!seen_o && (ctx->i_flags & CW_F_SHADOW)) {
1483 newae(ctx->i_ae, "-o");
1484 newae(ctx->i_ae, ctx->i_discard);
1485 }
1486 }
1487
1488 static void
1489 do_cc(cw_ictx_t *ctx)
1490 {
1491 int in_output = 0, seen_o = 0;
1492 cw_op_t op = CW_O_LINK;
1493 char *nameflag;
1494
1495 if (ctx->i_flags & CW_F_PROG) {
1496 newae(ctx->i_ae, "-V");
1497 return;
1498 }
1499
1500 if (asprintf(&nameflag, "-_%s=", ctx->i_compiler->c_name) == -1)
1501 nomem();
1502
1503 while (--ctx->i_oldargc > 0) {
1504 char *arg = *++ctx->i_oldargv;
1505
1506 if (strncmp(arg, "-_CC=", 5) == 0) {
1507 newae(ctx->i_ae, strchr(arg, '=') + 1);
1508 continue;
1509 }
1510
1511 if (*arg != '-') {
1512 if (in_output == 0 || !(ctx->i_flags & CW_F_SHADOW)) {
1513 newae(ctx->i_ae, arg);
1514 } else {
1515 in_output = 0;
1516 newae(ctx->i_ae, ctx->i_discard);
1517 }
1518 continue;
1519 }
1520 switch (*(arg + 1)) {
1521 case '_':
1522 if ((strncmp(arg, nameflag, strlen(nameflag)) == 0) ||
1523 (strncmp(arg, "-_cc=", 5) == 0) ||
1524 (strncmp(arg, "-_sun=", 6) == 0)) {
1525 newae(ctx->i_ae, strchr(arg, '=') + 1);
1526 }
1527 break;
1528
1529 case 'V':
1530 ctx->i_flags &= ~CW_F_ECHO;
1531 newae(ctx->i_ae, arg);
1532 break;
1533 case 'o':
1534 seen_o = 1;
1535 if (strlen(arg) == 2) {
1536 in_output = 1;
1537 newae(ctx->i_ae, arg);
1538 } else if (ctx->i_flags & CW_F_SHADOW) {
1539 newae(ctx->i_ae, "-o");
1540 newae(ctx->i_ae, ctx->i_discard);
1541 } else {
1542 newae(ctx->i_ae, arg);
1543 }
1544 break;
1545 case 'c':
1546 case 'S':
1547 if (strlen(arg) == 2)
1548 op = CW_O_COMPILE;
1549 newae(ctx->i_ae, arg);
1550 break;
1551 case 'E':
1552 case 'P':
1553 if (strlen(arg) == 2)
1554 op = CW_O_PREPROCESS;
1555 /*FALLTHROUGH*/
1556 default:
1557 newae(ctx->i_ae, arg);
1558 }
1559 }
1560
1561 free(nameflag);
1562
1563 if ((op == CW_O_LINK || op == CW_O_PREPROCESS) &&
1564 (ctx->i_flags & CW_F_SHADOW))
1565 exit(0);
1566
1567 if (!seen_o && (ctx->i_flags & CW_F_SHADOW)) {
1568 newae(ctx->i_ae, "-o");
1569 newae(ctx->i_ae, ctx->i_discard);
1570 }
1571 }
1572
1573 static void
1574 prepctx(cw_ictx_t *ctx)
1575 {
1576 newae(ctx->i_ae, ctx->i_compiler->c_path);
1577
1578 if (ctx->i_flags & CW_F_PROG) {
1579 (void) printf("%s: %s\n", (ctx->i_flags & CW_F_SHADOW) ?
1580 "shadow" : "primary", ctx->i_compiler->c_path);
1581 (void) fflush(stdout);
1582 }
1583
1584 if (!(ctx->i_flags & CW_F_XLATE))
1585 return;
1586
1587 switch (ctx->i_compiler->c_style) {
1588 case SUN:
1589 do_cc(ctx);
1590 break;
1591 case GNU:
1592 do_gcc(ctx);
1593 break;
1594 }
1595 }
1596
1597 static int
1598 invoke(cw_ictx_t *ctx)
1599 {
1600 char **newargv;
1601 int ac;
1602 struct ae *a;
1603
1604 if ((newargv = calloc(sizeof (*newargv), ctx->i_ae->ael_argc + 1)) ==
1605 NULL)
1606 nomem();
1607
1608 if (ctx->i_flags & CW_F_ECHO)
1609 (void) fprintf(stderr, "+ ");
1610
1611 for (ac = 0, a = ctx->i_ae->ael_head; a; a = a->ae_next, ac++) {
1612 newargv[ac] = a->ae_arg;
1613 if (ctx->i_flags & CW_F_ECHO)
1614 (void) fprintf(stderr, "%s ", a->ae_arg);
1615 if (a == ctx->i_ae->ael_tail)
1616 break;
1617 }
1618
1619 if (ctx->i_flags & CW_F_ECHO) {
1620 (void) fprintf(stderr, "\n");
1621 (void) fflush(stderr);
1622 }
1623
1624 if (!(ctx->i_flags & CW_F_EXEC))
1625 return (0);
1626
1627 /*
1628 * We must fix up the environment here so that the dependency files are
1629 * not trampled by the shadow compiler. Also take care of GCC
1630 * environment variables that will throw off gcc. This assumes a primary
1631 * gcc.
1632 */
1633 if ((ctx->i_flags & CW_F_SHADOW) &&
1634 (unsetenv("SUNPRO_DEPENDENCIES") != 0 ||
1635 unsetenv("DEPENDENCIES_OUTPUT") != 0 ||
1636 unsetenv("GCC_ROOT") != 0)) {
1637 (void) fprintf(stderr, "error: environment setup failed: %s\n",
1638 strerror(errno));
1639 return (-1);
1640 }
1641
1642 (void) execv(newargv[0], newargv);
1643 warn("couldn't run %s", newargv[0]);
1644
1645 return (-1);
1646 }
1647
1648 static int
1649 reap(cw_ictx_t *ctx)
1650 {
1651 int status, ret = 0;
1652 char buf[1024];
1653 struct stat s;
1654
1655 /*
1656 * Only wait for one specific child.
1657 */
1658 if (ctx->i_pid <= 0)
1659 return (-1);
1660
1661 do {
1662 if (waitpid(ctx->i_pid, &status, 0) < 0) {
1663 warn("cannot reap child");
1664 return (-1);
1665 }
1666 if (status != 0) {
1667 if (WIFSIGNALED(status)) {
1668 ret = -WTERMSIG(status);
1669 break;
1670 } else if (WIFEXITED(status)) {
1671 ret = WEXITSTATUS(status);
1672 break;
1673 }
1674 }
1675 } while (!WIFEXITED(status) && !WIFSIGNALED(status));
1676
1677 (void) unlink(ctx->i_discard);
1678
1679 if (stat(ctx->i_stderr, &s) < 0) {
1680 warn("stat failed on child cleanup");
1681 return (-1);
1682 }
1683 if (s.st_size != 0) {
1684 FILE *f;
1685
1686 if ((f = fopen(ctx->i_stderr, "r")) != NULL) {
1687 while (fgets(buf, sizeof (buf), f))
1688 (void) fprintf(stderr, "%s", buf);
1689 (void) fflush(stderr);
1690 (void) fclose(f);
1691 }
1692 }
1693 (void) unlink(ctx->i_stderr);
1694 free(ctx->i_stderr);
1695
1696 /*
1697 * cc returns an error code when given -V; we want that to succeed.
1698 */
1699 if (ctx->i_flags & CW_F_PROG)
1700 return (0);
1713 */
1714 if ((file = tempnam(NULL, ".cw")) == NULL) {
1715 nomem();
1716 return (-1);
1717 }
1718 (void) strlcpy(ctx->i_discard, file, MAXPATHLEN);
1719 (void) strlcat(ctx->i_discard, ".o", MAXPATHLEN);
1720 free(file);
1721
1722 if ((ctx->i_stderr = tempnam(NULL, ".cw")) == NULL) {
1723 nomem();
1724 return (-1);
1725 }
1726
1727 if ((ctx->i_pid = fork()) == 0) {
1728 int fd;
1729
1730 (void) fclose(stderr);
1731 if ((fd = open(ctx->i_stderr, O_WRONLY | O_CREAT | O_EXCL,
1732 0666)) < 0) {
1733 err(1, "open failed for standard error");
1734 }
1735 if (dup2(fd, 2) < 0) {
1736 err(1, "dup2 failed for standard error");
1737 }
1738 if (fd != 2)
1739 (void) close(fd);
1740 if (freopen("/dev/fd/2", "w", stderr) == NULL) {
1741 err(1, "freopen failed for /dev/fd/2");
1742 }
1743
1744 prepctx(ctx);
1745 exit(invoke(ctx));
1746 }
1747
1748 if (ctx->i_pid < 0) {
1749 err(1, "fork failed");
1750 }
1751
1752 if (block)
1753 return (reap(ctx));
1754
1755 return (0);
1756 }
1757
1758 static void
1759 parse_compiler(const char *spec, cw_compiler_t *compiler)
1760 {
1761 char *tspec, *token;
1762
1763 if ((tspec = strdup(spec)) == NULL)
1764 nomem();
1765
1766 if ((token = strsep(&tspec, ",")) == NULL)
1767 errx(1, "Compiler is missing a name: %s", spec);
1768 compiler->c_name = token;
1769
1770 if ((token = strsep(&tspec, ",")) == NULL)
1771 errx(1, "Compiler is missing a path: %s", spec);
1772 compiler->c_path = token;
1773
1774 if ((token = strsep(&tspec, ",")) == NULL)
1775 errx(1, "Compiler is missing a style: %s", spec);
1776
1777 if ((strcasecmp(token, "gnu") == 0) ||
1778 (strcasecmp(token, "gcc") == 0))
1779 compiler->c_style = GNU;
1780 else if ((strcasecmp(token, "sun") == 0) ||
1781 (strcasecmp(token, "cc") == 0))
1782 compiler->c_style = SUN;
1783 else
1784 errx(1, "unknown compiler style: %s", token);
1785
1786 if (tspec != NULL)
1787 errx(1, "Excess tokens in compiler: %s", spec);
1788 }
1789
1790 int
1791 main(int argc, char **argv)
1792 {
1793 int ch;
1794 cw_compiler_t primary = { NULL, NULL, 0 };
1795 cw_compiler_t shadows[10];
1796 int nshadows = 0;
1797 int ret = 0;
1798 boolean_t do_serial = B_FALSE;
1799 boolean_t do_exec = B_FALSE;
1800 boolean_t vflg = B_FALSE;
1801 boolean_t Cflg = B_FALSE;
1802 boolean_t cflg = B_FALSE;
1803 boolean_t nflg = B_FALSE;
1804
1805 cw_ictx_t *main_ctx;
1806
1807 static struct option longopts[] = {
1808 { "compiler", no_argument, NULL, 'c' },
1809 { "noecho", no_argument, NULL, 'n' },
1810 { "primary", required_argument, NULL, 'p' },
1811 { "shadow", required_argument, NULL, 's' },
1812 { "versions", no_argument, NULL, 'v' },
1813 { NULL, 0, NULL, 0 },
1814 };
1815
1816
1817 if ((main_ctx = newictx()) == NULL)
1818 nomem();
1819
1820 while ((ch = getopt_long(argc, argv, "C", longopts, NULL)) != -1) {
1821 switch (ch) {
1822 case 'c':
1823 cflg = B_TRUE;
1824 break;
1825 case 'C':
1826 Cflg = B_TRUE;
1827 break;
1828 case 'n':
1829 nflg = B_TRUE;
1830 break;
1831 case 'p':
1832 if (primary.c_path != NULL) {
1833 warnx("Only one primary compiler may "
1834 "be specified");
1835 usage();
1836 }
1837
1838 parse_compiler(optarg, &primary);
1839 break;
1840 case 's':
1841 if (nshadows >= 10)
1842 errx(1, "May only use 10 shadows at "
1843 "the moment");
1844 parse_compiler(optarg, &shadows[nshadows]);
1845 nshadows++;
1846 break;
1847 case 'v':
1848 vflg = B_TRUE;
1849 break;
1850 default:
1851 (void) fprintf(stderr, "Did you forget '--'?\n");
1852 usage();
1853 }
1854 }
1855
1856 if (primary.c_path == NULL) {
1857 warnx("A primary compiler must be specified");
1858 usage();
1859 }
1860
1861 do_serial = (getenv("CW_SHADOW_SERIAL") == NULL) ? B_FALSE : B_TRUE;
1862 do_exec = (getenv("CW_NO_EXEC") == NULL) ? B_TRUE : B_FALSE;
1863
1864 /* Leave room for argv[0] */
1865 argc -= (optind - 1);
1866 argv += (optind - 1);
1867
1868 main_ctx->i_oldargc = argc;
1869 main_ctx->i_oldargv = argv;
1870 main_ctx->i_flags = CW_F_XLATE;
1871 if (nflg == 0)
1872 main_ctx->i_flags |= CW_F_ECHO;
1873 if (do_exec)
1874 main_ctx->i_flags |= CW_F_EXEC;
1875 if (Cflg)
1876 main_ctx->i_flags |= CW_F_CXX;
1877 main_ctx->i_compiler = &primary;
1878
1879 if (cflg) {
1880 (void) fputs(primary.c_path, stdout);
1881 }
1882
1883 if (vflg) {
1884 (void) printf("cw version %s\n", CW_VERSION);
1885 (void) fflush(stdout);
1886 main_ctx->i_flags &= ~CW_F_ECHO;
1887 main_ctx->i_flags |= CW_F_PROG | CW_F_EXEC;
1888 do_serial = 1;
1889 }
1890
1891 ret |= exec_ctx(main_ctx, do_serial);
1892
1893 for (int i = 0; i < nshadows; i++) {
1894 int r;
1895 cw_ictx_t *shadow_ctx;
1896
1897 if ((shadow_ctx = newictx()) == NULL)
1898 nomem();
1899
1900 memcpy(shadow_ctx, main_ctx, sizeof (cw_ictx_t));
1901
1902 shadow_ctx->i_flags |= CW_F_SHADOW;
1903 shadow_ctx->i_compiler = &shadows[i];
1904
1905 r = exec_ctx(shadow_ctx, do_serial);
1906 if (r == 0) {
1907 shadow_ctx->i_next = main_ctx->i_next;
1908 main_ctx->i_next = shadow_ctx;
1909 }
1910 ret |= r;
1911 }
1912
1913 if (!do_serial) {
1914 cw_ictx_t *next = main_ctx;
1915 while (next != NULL) {
1916 cw_ictx_t *toreap = next;
1917 next = next->i_next;
1918 ret |= reap(toreap);
1919 }
1920 }
1921
1922 return (ret);
1923 }
|