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 2010 Sun Microsystems, Inc. All rights reserved.
25 * Use is subject to license terms.
26 *
27 * Copyright 2018 Richard Lowe.
28 * Copyright 2019 Joyent, Inc.
29 * Copyright 2025 Oxide Computer Company
30 */
31
32 /*
33 * Wrapper for the GNU C compiler to make it accept the Sun C compiler
34 * arguments where possible.
35 *
36 * Since the translation is inexact, this is something of a work-in-progress.
37 *
38 */
39
40 /*
41 * If you modify this file, you must increment CW_VERSION. This is a semver,
42 * incompatible changes should bump the major, anything else the minor.
43 */
44 #define CW_VERSION "10.0"
45
46 /*
47 * -# Verbose mode
48 * -### Show compiler commands built by driver, no compilation
49 * -A<name[(tokens)]> Preprocessor predicate assertion
50 * -C Prevent preprocessor from removing comments
51 * -c Compile only - produce .o files, suppress linking
52 * -D<name[=token]> Associate name with token as if by #define
53 * -d[y|n] dynamic [-dy] or static [-dn] option to linker
54 * -E Compile source through preprocessor only, output to stdout
55 * -erroff=<t> Suppress warnings specified by tags t(%none, %all, <tag list>)
56 * -errtags=<a> Display messages with tags a(no, yes)
57 * -errwarn=<t> Treats warnings specified by tags t(%none, %all, <tag list>)
58 * as errors
59 * -g Compile for debugging
60 * -H Print path name of each file included during compilation
61 * -h <name> Assign <name> to generated dynamic shared library
62 * -I<dir> Add <dir> to preprocessor #include file search path
63 * -i Passed to linker to ignore any LD_LIBRARY_PATH setting
64 * -keeptmp Keep temporary files created during compilation
65 * -L<dir> Pass to linker to add <dir> to the library search path
66 * -l<name> Link with library lib<name>.a or lib<name>.so
67 * -mt Specify options needed when compiling multi-threaded code
68 * -O Use default optimization level (-xO2 or -xO3. Check man page.)
69 * -o <outputfile> Set name of output file to <outputfile>
70 * -P Compile source through preprocessor only, output to .i file
71 * -p Compile for profiling with prof
72 * -R<dir[:dir]> Build runtime search path list into executable
73 * -S Compile and only generate assembly code (.s)
74 * -s Strip symbol table from the executable file
75 * -std= Set the C standard (note this is in the GNU syntax)
76 * -t Turn off duplicate symbol warnings when linking
77 * -U<name> Delete initial definition of preprocessor symbol <name>
78 * -V Report version number of each compilation phase
79 * -v Do stricter semantic checking
80 * -W<c>,<arg> Pass <arg> to specified component <c> (a,l,m,p,0,2,h,i,u)
81 * -w Suppress compiler warning messages
82 * -Xa Compile assuming ANSI C conformance, allow K & R extensions
83 * (default mode)
84 * -Xs Compile assuming (pre-ANSI) K & R C style code
85 * -xarch=<a> Specify target architecture instruction set
86 * -xbuiltin[=<b>] When profitable inline, or substitute intrinisic functions
87 * for system functions, b={%all,%none}
88 * -xchip=<c> Specify the target processor for use by the optimizer
89 * -xO<n> Generate optimized code (n={1|2|3|4|5})
90 * -xtarget=<t> Specify target system for optimization
91 * -YI,<dir> Specify <dir> for location of headers
92 */
93
94 /*
95 * Translation table:
96 */
97 /*
98 * -# -v
99 * -### error
100 * -A<name[(tokens)]> pass-thru
101 * -B<[static|dynamic]> pass-thru (syntax error for anything else)
102 * -C pass-thru
103 * -c pass-thru
104 * -D<name[=token]> pass-thru
105 * -E pass-thru
106 * -errtags=%all -Wall
107 * -errwarn=%all -Werror else -Wno-error
108 * -g pass-thru
109 * -H pass-thru
110 * -I<dir> pass-thru
111 * -i pass-thru
112 * -keeptmp -save-temps
113 * -L<dir> pass-thru
114 * -l<name> pass-thru
115 * -mt -D_REENTRANT
116 * -nolib -nodefaultlibs
117 * -O -O1 (Check the man page to be certain)
118 * -o <outputfile> pass-thru
119 * -P -E -o filename.i (or error)
120 * -p pass-thru
121 * -R<dir[:dir]> pass-thru
122 * -S pass-thru
123 * -std= pass-thru
124 * -U<name> pass-thru
125 * -V --version
126 * -v -Wall
127 * -Wa,<arg> pass-thru
128 * -Wp,<arg> pass-thru
129 * -Wl,<arg> pass-thru
130 * -xmodel=kernel -ffreestanding -mcmodel=kernel -mno-red-zone
131 * -Wu,-save_args -msave-args
132 * -w pass-thru
133 * -Xa -std=iso9899:199409 or -ansi
134 * -Xs -traditional -std=c89
135 * -xarch=<a> table
136 * -xbuiltin[=<b>] -fbuiltin (-fno-builtin otherwise)
137 * -xchip=<c> table
138 * -xO<n> -O<n>
139 * -xtarget=<t> table
140 * -xtransition -Wtransition
141 * -YI,<dir> -nostdinc -I<dir>
142 */
143
144 #include <ctype.h>
145 #include <err.h>
146 #include <errno.h>
147 #include <fcntl.h>
148 #include <getopt.h>
149 #include <stdio.h>
150 #include <stdlib.h>
151 #include <stdbool.h>
152 #include <string.h>
153 #include <unistd.h>
154 #include <dirent.h>
155
156 #include <sys/param.h>
157 #include <sys/stat.h>
158 #include <sys/types.h>
159 #include <sys/utsname.h>
160 #include <sys/wait.h>
161
162 #define CW_F_CXX 0x01
163 #define CW_F_SHADOW 0x02
164 #define CW_F_EXEC 0x04
165 #define CW_F_ECHO 0x08
166 #define CW_F_XLATE 0x10
167 #define CW_F_PROG 0x20
168
169 typedef enum cw_op {
170 CW_O_NONE = 0,
171 CW_O_PREPROCESS,
172 CW_O_COMPILE,
173 CW_O_LINK
174 } cw_op_t;
175
176 struct aelist {
177 struct ae {
178 struct ae *ae_next;
179 char *ae_arg;
180 } *ael_head, *ael_tail;
181 int ael_argc;
182 };
183
184 typedef enum {
185 GNU,
186 SUN,
187 SMATCH
188 } compiler_style_t;
189
190 typedef enum {
191 SOURCE_FILE_T_NONE,
192 SOURCE_FILE_T_C,
193 SOURCE_FILE_T_S,
194 SOURCE_FILE_T_CPP,
195 SOURCE_FILE_T_CCX,
196 SOURCE_FILE_T_I
197 } source_file_type_t;
198
199 typedef struct {
200 char *c_name;
201 char *c_path;
202 compiler_style_t c_style;
203 } cw_compiler_t;
204
205 typedef struct cw_ictx {
206 struct cw_ictx *i_next;
207 cw_compiler_t *i_compiler;
208 char *i_linker;
209 struct aelist *i_ae;
210 uint32_t i_flags;
211 int i_oldargc;
212 char **i_oldargv;
213 pid_t i_pid;
214 char *i_tmpdir;
215 char *i_stderr;
216 } cw_ictx_t;
217
218 /*
219 * Status values to indicate which Studio compiler and associated
220 * flags are being used.
221 */
222 #define M32 0x01 /* -m32 - only on Studio 12 */
223 #define M64 0x02 /* -m64 - only on Studio 12 */
224 #define SS11 0x100 /* Studio 11 */
225 #define SS12 0x200 /* Studio 12 */
226
227 #define TRANS_ENTRY 5
228 /*
229 * Translation table definition for the -xarch= flag. The "x_arg"
230 * value is translated into the appropriate gcc flags according
231 * to the values in x_trans[n]. The x_flags indicates what compiler
232 * is being used and what flags have been set via the use of
233 * "x_arg".
234 */
235 typedef struct xarch_table {
236 char *x_arg;
237 int x_flags;
238 char *x_trans[TRANS_ENTRY];
239 } xarch_table_t;
240
241 /*
242 * The translation table for the -xarch= flag used in the Studio compilers.
243 */
244 static const xarch_table_t xtbl[] = {
245 #if defined(__x86)
246 { "generic", SS11, {NULL} },
247 { "generic64", (SS11|M64), { "-m64", "-mtune=opteron" } },
248 { "amd64", (SS11|M64), { "-m64", "-mtune=opteron" } },
249 { "386", SS11, { "-march=i386" } },
250 { "pentium_pro", SS11, { "-march=pentiumpro" } },
251 { "sse", SS11, { "-msse", "-mfpmath=sse" } },
252 { "sse2", SS11, { "-msse2", "-mfpmath=sse" } },
253 #endif
254 };
255
256 static int xtbl_size = sizeof (xtbl) / sizeof (xarch_table_t);
257
258 static const char *xchip_tbl[] = {
259 #if defined(__x86)
260 "386", "-mtune=i386", NULL,
261 "486", "-mtune=i486", NULL,
262 "pentium", "-mtune=pentium", NULL,
263 "pentium_pro", "-mtune=pentiumpro", NULL,
264 #endif
265 NULL, NULL
266 };
267
268 static const char *xtarget_tbl[] = {
269 #if defined(__x86)
270 "pentium_pro", "-march=pentiumpro", NULL,
271 #endif /* __x86 */
272 NULL, NULL
273 };
274
275 static void
nomem(void)276 nomem(void)
277 {
278 errx(1, "out of memory");
279 }
280
281 static void
newae(struct aelist * ael,const char * arg)282 newae(struct aelist *ael, const char *arg)
283 {
284 struct ae *ae;
285
286 if ((ae = calloc(1, sizeof (*ae))) == NULL)
287 nomem();
288 ae->ae_arg = strdup(arg);
289 if (ael->ael_tail == NULL)
290 ael->ael_head = ae;
291 else
292 ael->ael_tail->ae_next = ae;
293 ael->ael_tail = ae;
294 ael->ael_argc++;
295 }
296
297 static cw_ictx_t *
newictx(void)298 newictx(void)
299 {
300 cw_ictx_t *ctx = calloc(1, sizeof (cw_ictx_t));
301 if (ctx)
302 if ((ctx->i_ae = calloc(1, sizeof (struct aelist))) == NULL) {
303 free(ctx);
304 return (NULL);
305 }
306
307 return (ctx);
308 }
309
310 static void
error(const char * arg)311 error(const char *arg)
312 {
313 errx(2, "error: mapping failed at or near arg '%s'", arg);
314 }
315
316 /*
317 * Add the current favourite set of warnings to the gcc invocation.
318 */
319 static void
warnings(struct aelist * h)320 warnings(struct aelist *h)
321 {
322 static int warningsonce;
323
324 if (warningsonce++)
325 return;
326
327 /*
328 * Enable as many warnings as exist, then disable those that we never
329 * ever want.
330 */
331 newae(h, "-Wall");
332 newae(h, "-Wextra");
333 }
334
335 static void
optim_disable(struct aelist * h,int level)336 optim_disable(struct aelist *h, int level)
337 {
338 if (level >= 2) {
339 newae(h, "-fno-strict-aliasing");
340 newae(h, "-fno-unit-at-a-time");
341 newae(h, "-fno-optimize-sibling-calls");
342 }
343 }
344
345 static void
Xsmode(struct aelist * h)346 Xsmode(struct aelist *h)
347 {
348 static int xsonce;
349
350 if (xsonce++)
351 return;
352
353 newae(h, "-traditional");
354 newae(h, "-traditional-cpp");
355 }
356
357 static void
usage(void)358 usage(void)
359 {
360 extern char *__progname;
361 (void) fprintf(stderr,
362 "usage: %s [-C] [--tag arg] [--versions] --primary <compiler> "
363 "[--shadow <compiler>]... -- cflags...\n",
364 __progname);
365 (void) fprintf(stderr, "compilers take the form: name,path,style\n"
366 " - name: a unique name usable in flag specifiers\n"
367 " - path: path to the compiler binary\n"
368 " - style: the style of flags expected: either sun or gnu\n");
369 exit(2);
370 }
371
372 static int
xlate_xtb(struct aelist * h,const char * xarg)373 xlate_xtb(struct aelist *h, const char *xarg)
374 {
375 int i, j;
376
377 for (i = 0; i < xtbl_size; i++) {
378 if (strcmp(xtbl[i].x_arg, xarg) == 0)
379 break;
380 }
381
382 /*
383 * At the end of the table and so no matching "arg" entry
384 * found and so this must be a bad -xarch= flag.
385 */
386 if (i == xtbl_size)
387 error(xarg);
388
389 for (j = 0; j < TRANS_ENTRY; j++) {
390 if (xtbl[i].x_trans[j] != NULL)
391 newae(h, xtbl[i].x_trans[j]);
392 else
393 break;
394 }
395 return (xtbl[i].x_flags);
396
397 }
398
399 static void
xlate(struct aelist * h,const char * xarg,const char ** table)400 xlate(struct aelist *h, const char *xarg, const char **table)
401 {
402 while (*table != NULL && strcmp(xarg, *table) != 0) {
403 while (*table != NULL)
404 table++;
405 table++;
406 }
407
408 if (*table == NULL)
409 error(xarg);
410
411 table++;
412
413 while (*table != NULL) {
414 newae(h, *table);
415 table++;
416 }
417 }
418
419 /*
420 * The compiler wants the output file to end in appropriate extension. If
421 * we're generating a name from whole cloth (path == NULL), we assume that
422 * extension to be .o, otherwise we match the extension of the caller.
423 */
424 static char *
discard_file_name(cw_ictx_t * ctx,const char * path)425 discard_file_name(cw_ictx_t *ctx, const char *path)
426 {
427 char *ret, *ext;
428 char tmpl[] = "cwXXXXXX";
429
430 if (path == NULL) {
431 ext = ".o";
432 } else {
433 ext = strrchr(path, '.');
434 }
435
436 /*
437 * We need absolute control over where the temporary file goes, since
438 * we rely on it for cleanup so tempnam(3C) and tmpnam(3C) are
439 * inappropriate (they use TMPDIR, preferentially).
440 *
441 * mkstemp(3C) doesn't actually help us, since the temporary file
442 * isn't used by us, only its name.
443 */
444 if (mktemp(tmpl) == NULL)
445 nomem();
446
447 (void) asprintf(&ret, "%s/%s%s", ctx->i_tmpdir, tmpl,
448 (ext != NULL) ? ext : "");
449
450 if (ret == NULL)
451 nomem();
452
453 return (ret);
454 }
455
456 static source_file_type_t
id_source_file(const char * path)457 id_source_file(const char *path)
458 {
459 const char *ext = strrchr(path, '.');
460
461 if ((ext == NULL) || (*(ext + 1) == '\0'))
462 return (SOURCE_FILE_T_NONE);
463
464 ext += 1;
465
466 if (strcasecmp(ext, "c") == 0) {
467 return (SOURCE_FILE_T_C);
468 } else if (strcmp(ext, "cc") == 0) {
469 return (SOURCE_FILE_T_CCX);
470 } else if (strcmp(ext, "i") == 0) {
471 return (SOURCE_FILE_T_I);
472 } else if (strcasecmp(ext, "s") == 0) {
473 return (SOURCE_FILE_T_S);
474 } else if (strcmp(ext, "cpp") == 0) {
475 return (SOURCE_FILE_T_CPP);
476 }
477
478 return (SOURCE_FILE_T_NONE);
479
480 }
481
482 static bool
is_asm_file(const char * path)483 is_asm_file(const char *path)
484 {
485 return (id_source_file(path) == SOURCE_FILE_T_S);
486 }
487
488 static void
do_gcc(cw_ictx_t * ctx)489 do_gcc(cw_ictx_t *ctx)
490 {
491 int c;
492 int nolibc = 0;
493 int in_output = 0, seen_o = 0, src_files = 0;
494 cw_op_t op = CW_O_LINK;
495 char *model = NULL;
496 char *nameflag;
497 int mflag = 0;
498 bool seen_cstd = false, check_cstd = false;
499
500 if (ctx->i_flags & CW_F_PROG) {
501 newae(ctx->i_ae, "--version");
502 return;
503 }
504
505 newae(ctx->i_ae, "-fident");
506 newae(ctx->i_ae, "-finline");
507 newae(ctx->i_ae, "-fno-inline-functions");
508 newae(ctx->i_ae, "-fno-builtin");
509 newae(ctx->i_ae, "-fno-asm");
510 newae(ctx->i_ae, "-fdiagnostics-show-option");
511 newae(ctx->i_ae, "-nodefaultlibs");
512
513 /*
514 * This is needed because 'u' is defined
515 * under a conditional on 'sun'. Should
516 * probably just remove the conditional,
517 * or make it be dependent on '__sun'.
518 *
519 * -Dunix is also missing in enhanced ANSI mode
520 */
521 newae(ctx->i_ae, "-D__sun");
522
523 if (asprintf(&nameflag, "-_%s=", ctx->i_compiler->c_name) == -1)
524 nomem();
525
526 /*
527 * Walk the argument list, translating as we go ..
528 */
529 while (--ctx->i_oldargc > 0) {
530 char *arg = *++ctx->i_oldargv;
531 size_t arglen = strlen(arg);
532
533 if (*arg == '-') {
534 arglen--;
535 } else {
536 if (!in_output) {
537 source_file_type_t type = id_source_file(arg);
538 if (type != SOURCE_FILE_T_NONE)
539 src_files++;
540 if (type == SOURCE_FILE_T_C)
541 check_cstd = true;
542 }
543
544 /*
545 * Otherwise, filenames and partial arguments
546 * are passed through for gcc to chew on. However,
547 * output is always discarded for the secondary
548 * compiler.
549 */
550 if ((ctx->i_flags & CW_F_SHADOW) && in_output) {
551 newae(ctx->i_ae, discard_file_name(ctx, arg));
552 } else {
553 newae(ctx->i_ae, arg);
554 }
555 in_output = 0;
556 continue;
557 }
558
559 if (ctx->i_flags & CW_F_CXX) {
560 if (strncmp(arg, "-_g++=", 6) == 0) {
561 newae(ctx->i_ae, strchr(arg, '=') + 1);
562 continue;
563 }
564
565 if (strcmp(arg, "-xwe") == 0) {
566 /* turn warnings into errors */
567 newae(ctx->i_ae, "-Werror");
568 continue;
569 }
570 if (strcmp(arg, "-nolib") == 0) {
571 /* -nodefaultlibs is on by default */
572 nolibc = 1;
573 continue;
574 }
575 }
576
577 switch ((c = arg[1])) {
578 case '_':
579 if ((strncmp(arg, nameflag, strlen(nameflag)) == 0) ||
580 (strncmp(arg, "-_gcc=", 6) == 0) ||
581 (strncmp(arg, "-_gnu=", 6) == 0)) {
582 newae(ctx->i_ae, strchr(arg, '=') + 1);
583 }
584 break;
585 case '#':
586 if (arglen == 1) {
587 newae(ctx->i_ae, "-v");
588 break;
589 }
590 error(arg);
591 break;
592 case 'f':
593 if ((strcmp(arg, "-fpic") == 0) ||
594 (strcmp(arg, "-fPIC") == 0)) {
595 newae(ctx->i_ae, arg);
596 break;
597 }
598 error(arg);
599 break;
600 case 'E':
601 if (arglen == 1) {
602 newae(ctx->i_ae, "-xc");
603 newae(ctx->i_ae, arg);
604 op = CW_O_PREPROCESS;
605 nolibc = 1;
606 break;
607 }
608 error(arg);
609 break;
610 case 'c':
611 case 'S':
612 if (arglen == 1) {
613 op = CW_O_COMPILE;
614 nolibc = 1;
615 }
616 /* FALLTHROUGH */
617 case 'C':
618 case 'H':
619 case 'p':
620 if (arglen == 1) {
621 newae(ctx->i_ae, arg);
622 break;
623 }
624 error(arg);
625 break;
626 case 'A':
627 case 'g':
628 case 'I':
629 case 'i':
630 case 'L':
631 case 'l':
632 case 'R':
633 case 'U':
634 case 'u':
635 case 'w':
636 newae(ctx->i_ae, arg);
637 break;
638 case 'o':
639 seen_o = 1;
640 if (arglen == 1) {
641 in_output = 1;
642 newae(ctx->i_ae, arg);
643 } else if (ctx->i_flags & CW_F_SHADOW) {
644 newae(ctx->i_ae, "-o");
645 newae(ctx->i_ae, discard_file_name(ctx, arg));
646 } else {
647 newae(ctx->i_ae, arg);
648 }
649 break;
650 case 'D':
651 newae(ctx->i_ae, arg);
652 /*
653 * XXX Clearly a hack ... do we need _KADB too?
654 */
655 if (strcmp(arg, "-D_KERNEL") == 0 ||
656 strcmp(arg, "-D_BOOT") == 0)
657 newae(ctx->i_ae, "-ffreestanding");
658 break;
659 case 'e':
660 if (strcmp(arg, "-errtags=yes") == 0) {
661 warnings(ctx->i_ae);
662 break;
663 }
664 if (strcmp(arg, "-errwarn=%all") == 0) {
665 newae(ctx->i_ae, "-Werror");
666 break;
667 }
668 error(arg);
669 break;
670 case 'k':
671 if (strcmp(arg, "-keeptmp") == 0) {
672 newae(ctx->i_ae, "-save-temps");
673 break;
674 }
675 error(arg);
676 break;
677 case 'm':
678 if (strcmp(arg, "-mt") == 0) {
679 newae(ctx->i_ae, "-D_REENTRANT");
680 break;
681 }
682 if (strcmp(arg, "-m64") == 0) {
683 newae(ctx->i_ae, "-m64");
684 #if defined(__x86)
685 newae(ctx->i_ae, "-mtune=opteron");
686 #endif
687 mflag |= M64;
688 break;
689 }
690 if (strcmp(arg, "-m32") == 0) {
691 newae(ctx->i_ae, "-m32");
692 mflag |= M32;
693 break;
694 }
695 error(arg);
696 break;
697 case 'O':
698 if (arglen == 1) {
699 newae(ctx->i_ae, "-O");
700 break;
701 }
702 error(arg);
703 break;
704 case 'P':
705 /*
706 * We could do '-E -o filename.i', but that's hard,
707 * and we don't need it for the case that's triggering
708 * this addition. We'll require the user to specify
709 * -o in the Makefile. If they don't they'll find out
710 * in a hurry.
711 */
712 newae(ctx->i_ae, "-E");
713 op = CW_O_PREPROCESS;
714 nolibc = 1;
715 break;
716 case 's':
717 if (strcmp(arg, "-shared") == 0) {
718 newae(ctx->i_ae, "-shared");
719 nolibc = 1;
720 break;
721 }
722
723 if (strncmp(arg, "-std=", 4) == 0) {
724 seen_cstd = true;
725 newae(ctx->i_ae, arg);
726 break;
727 }
728 error(arg);
729 break;
730
731 case 'V':
732 if (arglen == 1) {
733 ctx->i_flags &= ~CW_F_ECHO;
734 newae(ctx->i_ae, "--version");
735 break;
736 }
737 error(arg);
738 break;
739 case 'v':
740 if (arglen == 1) {
741 warnings(ctx->i_ae);
742 break;
743 }
744 error(arg);
745 break;
746 case 'W':
747 if (strncmp(arg, "-Wa,", 4) == 0 ||
748 strncmp(arg, "-Wp,", 4) == 0 ||
749 strncmp(arg, "-Wl,", 4) == 0) {
750 newae(ctx->i_ae, arg);
751 break;
752 }
753
754 #if defined(__x86)
755 if (strcmp(arg, "-Wu,-save_args") == 0) {
756 newae(ctx->i_ae, "-msave-args");
757 break;
758 }
759 #endif /* __x86 */
760 error(arg);
761 break;
762 case 'X':
763 if (strcmp(arg, "-Xs") == 0) {
764 Xsmode(ctx->i_ae);
765 break;
766 }
767 error(arg);
768 break;
769 case 'x':
770 if (arglen == 1)
771 error(arg);
772 switch (arg[2]) {
773 case 'a':
774 if (strncmp(arg, "-xarch=", 7) == 0) {
775 mflag |= xlate_xtb(ctx->i_ae, arg + 7);
776 break;
777 }
778 error(arg);
779 break;
780 case 'b':
781 if (strncmp(arg, "-xbuiltin=", 10) == 0) {
782 if (strcmp(arg + 10, "%all"))
783 newae(ctx->i_ae, "-fbuiltin");
784 break;
785 }
786 error(arg);
787 break;
788 case 'c':
789 if (strncmp(arg, "-xc99=%all", 10) == 0) {
790 seen_cstd = true;
791 newae(ctx->i_ae, "-std=gnu99");
792 break;
793 }
794 if (strncmp(arg, "-xc99=%none", 11) == 0) {
795 seen_cstd = true;
796 newae(ctx->i_ae, "-std=gnu89");
797 break;
798 }
799 if (strncmp(arg, "-xchip=", 7) == 0) {
800 xlate(ctx->i_ae, arg + 7, xchip_tbl);
801 break;
802 }
803
804 error(arg);
805 break;
806 #if defined(__x86)
807 case 'm':
808 if (strcmp(arg, "-xmodel=kernel") == 0) {
809 newae(ctx->i_ae, "-ffreestanding");
810 newae(ctx->i_ae, "-mno-red-zone");
811 model = "-mcmodel=kernel";
812 nolibc = 1;
813 break;
814 }
815 error(arg);
816 break;
817 #endif /* __x86 */
818 case 'O':
819 if (strncmp(arg, "-xO", 3) == 0) {
820 size_t len = strlen(arg);
821 char *s = NULL;
822 int c = *(arg + 3);
823 int level;
824
825 if (len != 4 || !isdigit(c))
826 error(arg);
827
828 level = atoi(arg + 3);
829 if (level > 5)
830 error(arg);
831 if (level >= 2) {
832 /*
833 * For gcc-3.4.x at -O2 we
834 * need to disable optimizations
835 * that break ON.
836 */
837 optim_disable(ctx->i_ae, level);
838 /*
839 * limit -xO3 to -O2 as well.
840 */
841 level = 2;
842 }
843 if (asprintf(&s, "-O%d", level) == -1)
844 nomem();
845 newae(ctx->i_ae, s);
846 free(s);
847 break;
848 }
849 error(arg);
850 break;
851 case 't':
852 if (strncmp(arg, "-xtarget=", 9) == 0) {
853 xlate(ctx->i_ae, arg + 9, xtarget_tbl);
854 break;
855 }
856 error(arg);
857 break;
858 default:
859 error(arg);
860 break;
861 }
862 break;
863 case 'Y':
864 if (arglen == 1) {
865 if ((arg = *++ctx->i_oldargv) == NULL ||
866 *arg == '\0')
867 error("-Y");
868 ctx->i_oldargc--;
869 arglen = strlen(arg + 1);
870 } else {
871 arg += 2;
872 }
873 if (strncmp(arg, "I,", 2) == 0) {
874 char *s = strdup(arg);
875 s[0] = '-';
876 s[1] = 'I';
877 newae(ctx->i_ae, "-nostdinc");
878 newae(ctx->i_ae, s);
879 free(s);
880 break;
881 }
882 error(arg);
883 break;
884 default:
885 error(arg);
886 break;
887 }
888 }
889
890 free(nameflag);
891
892 /*
893 * We would like to catch occurrences where we have left out a -std
894 * argument so we don't end up with the compiler's default. The use of
895 * check_cstd keys on seeing a .c file, which ensures that we don't
896 * check C++, assembly, or other files, though we should check C++ at
897 * some point. In addition, if we do a link in a single action, it will
898 * actually catch it as well because we will see a .c file. However, if
899 * we're doing a normal link of multiple files then it won't misfire.
900 */
901 if (check_cstd && !seen_cstd) {
902 errx(2, "missing required -std= specification");
903 }
904
905 /*
906 * When compiling multiple source files in a single invocation some
907 * compilers output objects into the current directory with
908 * predictable and conventional names.
909 *
910 * We prevent any attempt to compile multiple files at once so that
911 * any such objects created by a shadow can't escape into a later
912 * link-edit.
913 */
914 if (src_files > 1 && op != CW_O_PREPROCESS) {
915 errx(2, "multiple source files are "
916 "allowed only with -E or -P");
917 }
918
919 /*
920 * Make sure that we do not have any unintended interactions between
921 * the xarch options passed in and the version of the Studio compiler
922 * used.
923 */
924 if ((mflag & (SS11|SS12)) == (SS11|SS12)) {
925 errx(2,
926 "Conflicting \"-xarch=\" flags (both Studio 11 and 12)\n");
927 }
928
929 switch (mflag) {
930 case 0:
931 case M32:
932 case M64:
933 case SS12:
934 case SS11:
935 case (SS11|M32):
936 case (SS11|M64):
937 case (SS12|M32):
938 case (SS12|M64):
939 break;
940 default:
941 (void) fprintf(stderr,
942 "Incompatible -xarch= and/or -m32/-m64 options used.\n");
943 exit(2);
944 }
945
946 if (ctx->i_flags & CW_F_SHADOW) {
947 if (op == CW_O_PREPROCESS)
948 exit(0);
949 else if (op == CW_O_LINK && src_files == 0)
950 exit(0);
951 }
952
953 if (model != NULL)
954 newae(ctx->i_ae, model);
955 if (!nolibc)
956 newae(ctx->i_ae, "-lc");
957 if (!seen_o && (ctx->i_flags & CW_F_SHADOW)) {
958 newae(ctx->i_ae, "-o");
959 newae(ctx->i_ae, discard_file_name(ctx, NULL));
960 }
961 }
962
963 static void
do_smatch(cw_ictx_t * ctx)964 do_smatch(cw_ictx_t *ctx)
965 {
966 if (ctx->i_flags & CW_F_PROG) {
967 newae(ctx->i_ae, "--version");
968 return;
969 }
970
971 /*
972 * Some sources shouldn't run smatch at all.
973 */
974 for (int i = 0; i < ctx->i_oldargc; i++) {
975 char *arg = ctx->i_oldargv[i];
976
977 if (strcmp(arg, "-_smatch=off") == 0) {
978 ctx->i_flags &= ~(CW_F_EXEC | CW_F_ECHO);
979 return;
980 }
981
982 /* smatch can't handle asm */
983 if ((arg[0] != '-') && is_asm_file(arg)) {
984 ctx->i_flags &= ~(CW_F_EXEC | CW_F_ECHO);
985 return;
986 }
987 }
988
989 /*
990 * smatch can handle gcc's options.
991 */
992 do_gcc(ctx);
993 }
994
995 static void
do_cc(cw_ictx_t * ctx)996 do_cc(cw_ictx_t *ctx)
997 {
998 int in_output = 0, seen_o = 0, c_files = 0;
999 cw_op_t op = CW_O_LINK;
1000 char *nameflag;
1001
1002 if (ctx->i_flags & CW_F_PROG) {
1003 newae(ctx->i_ae, "-V");
1004 return;
1005 }
1006
1007 if (asprintf(&nameflag, "-_%s=", ctx->i_compiler->c_name) == -1)
1008 nomem();
1009
1010 while (--ctx->i_oldargc > 0) {
1011 char *arg = *++ctx->i_oldargv;
1012
1013 if (strncmp(arg, "-_CC=", 5) == 0) {
1014 newae(ctx->i_ae, strchr(arg, '=') + 1);
1015 continue;
1016 }
1017
1018 if (*arg != '-') {
1019 if (!in_output && id_source_file(arg) !=
1020 SOURCE_FILE_T_NONE)
1021 c_files++;
1022
1023 if (in_output == 0 || !(ctx->i_flags & CW_F_SHADOW)) {
1024 newae(ctx->i_ae, arg);
1025 } else {
1026 in_output = 0;
1027 newae(ctx->i_ae, discard_file_name(ctx, arg));
1028 }
1029 continue;
1030 }
1031 switch (*(arg + 1)) {
1032 case '_':
1033 if ((strncmp(arg, nameflag, strlen(nameflag)) == 0) ||
1034 (strncmp(arg, "-_cc=", 5) == 0) ||
1035 (strncmp(arg, "-_sun=", 6) == 0)) {
1036 newae(ctx->i_ae, strchr(arg, '=') + 1);
1037 }
1038 break;
1039
1040 case 'V':
1041 ctx->i_flags &= ~CW_F_ECHO;
1042 newae(ctx->i_ae, arg);
1043 break;
1044 case 'o':
1045 seen_o = 1;
1046 if (strlen(arg) == 2) {
1047 in_output = 1;
1048 newae(ctx->i_ae, arg);
1049 } else if (ctx->i_flags & CW_F_SHADOW) {
1050 newae(ctx->i_ae, "-o");
1051 newae(ctx->i_ae, discard_file_name(ctx, arg));
1052 } else {
1053 newae(ctx->i_ae, arg);
1054 }
1055 break;
1056 case 'c':
1057 case 'S':
1058 if (strlen(arg) == 2)
1059 op = CW_O_COMPILE;
1060 newae(ctx->i_ae, arg);
1061 break;
1062 case 'E':
1063 case 'P':
1064 if (strlen(arg) == 2)
1065 op = CW_O_PREPROCESS;
1066 /*FALLTHROUGH*/
1067 default:
1068 newae(ctx->i_ae, arg);
1069 }
1070 }
1071
1072 free(nameflag);
1073
1074 /* See the comment on this same code in do_gcc() */
1075 if (c_files > 1 && op != CW_O_PREPROCESS) {
1076 errx(2, "multiple source files are "
1077 "allowed only with -E or -P");
1078 }
1079
1080 if (ctx->i_flags & CW_F_SHADOW) {
1081 if (op == CW_O_PREPROCESS)
1082 exit(0);
1083 else if (op == CW_O_LINK && c_files == 0)
1084 exit(0);
1085 }
1086
1087 if (!seen_o && (ctx->i_flags & CW_F_SHADOW)) {
1088 newae(ctx->i_ae, "-o");
1089 newae(ctx->i_ae, discard_file_name(ctx, NULL));
1090 }
1091 }
1092
1093 static void
prepctx(cw_ictx_t * ctx)1094 prepctx(cw_ictx_t *ctx)
1095 {
1096 newae(ctx->i_ae, ctx->i_compiler->c_path);
1097
1098 if (ctx->i_flags & CW_F_PROG) {
1099 (void) printf("%s: %s\n", (ctx->i_flags & CW_F_SHADOW) ?
1100 "shadow" : "primary", ctx->i_compiler->c_path);
1101 (void) fflush(stdout);
1102 }
1103
1104 /*
1105 * If LD_ALTEXEC is already set, the expectation would be that that
1106 * link-editor is run, as such we need to leave it the environment
1107 * alone and let that happen.
1108 */
1109 if ((ctx->i_linker != NULL) && (getenv("LD_ALTEXEC") == NULL))
1110 setenv("LD_ALTEXEC", ctx->i_linker, 1);
1111
1112 if (!(ctx->i_flags & CW_F_XLATE))
1113 return;
1114
1115 switch (ctx->i_compiler->c_style) {
1116 case SUN:
1117 do_cc(ctx);
1118 break;
1119 case GNU:
1120 do_gcc(ctx);
1121 break;
1122 case SMATCH:
1123 do_smatch(ctx);
1124 break;
1125 }
1126 }
1127
1128 static int
invoke(cw_ictx_t * ctx)1129 invoke(cw_ictx_t *ctx)
1130 {
1131 char **newargv, *makeflags;
1132 int ac;
1133 struct ae *a;
1134
1135 newargv = calloc(ctx->i_ae->ael_argc + 1, sizeof (*newargv));
1136 if (newargv == NULL)
1137 nomem();
1138
1139 /*
1140 * Check to see if the silent make flag is present (-s), if so, do not
1141 * echo. The MAKEFLAGS environment variable is set by dmake. By
1142 * observation it appears to place short flags without any arguments
1143 * first followed by any long form flags or flags with arguments.
1144 */
1145 makeflags = getenv("MAKEFLAGS");
1146 if (makeflags != NULL) {
1147 size_t makeflags_len = strlen(makeflags);
1148 for (size_t i = 0; i < makeflags_len; i++) {
1149 if (makeflags[i] == 's') {
1150 ctx->i_flags &= ~CW_F_ECHO;
1151 break;
1152 }
1153 /* end of short flags */
1154 if (makeflags[i] == ' ')
1155 break;
1156 }
1157 }
1158
1159 if (ctx->i_flags & CW_F_ECHO)
1160 (void) fprintf(stderr, "+ ");
1161
1162 for (ac = 0, a = ctx->i_ae->ael_head; a; a = a->ae_next, ac++) {
1163 newargv[ac] = a->ae_arg;
1164 if (ctx->i_flags & CW_F_ECHO)
1165 (void) fprintf(stderr, "%s ", a->ae_arg);
1166 if (a == ctx->i_ae->ael_tail)
1167 break;
1168 }
1169
1170 if (ctx->i_flags & CW_F_ECHO) {
1171 (void) fprintf(stderr, "\n");
1172 (void) fflush(stderr);
1173 }
1174
1175 if (!(ctx->i_flags & CW_F_EXEC))
1176 return (0);
1177
1178 /*
1179 * We must fix up the environment here so that the dependency files are
1180 * not trampled by the shadow compiler. Also take care of GCC
1181 * environment variables that will throw off gcc. This assumes a primary
1182 * gcc.
1183 */
1184 if ((ctx->i_flags & CW_F_SHADOW) &&
1185 (unsetenv("SUNPRO_DEPENDENCIES") != 0 ||
1186 unsetenv("DEPENDENCIES_OUTPUT") != 0 ||
1187 unsetenv("GCC_ROOT") != 0)) {
1188 (void) fprintf(stderr, "error: environment setup failed: %s\n",
1189 strerror(errno));
1190 return (-1);
1191 }
1192
1193 (void) execv(newargv[0], newargv);
1194 warn("couldn't run %s", newargv[0]);
1195
1196 return (-1);
1197 }
1198
1199 static int
reap(cw_ictx_t * ctx)1200 reap(cw_ictx_t *ctx)
1201 {
1202 int status, ret = 0;
1203 char buf[1024];
1204 struct stat s;
1205
1206 /*
1207 * Only wait for one specific child.
1208 */
1209 if (ctx->i_pid <= 0)
1210 return (-1);
1211
1212 do {
1213 if (waitpid(ctx->i_pid, &status, 0) < 0) {
1214 warn("cannot reap child");
1215 return (-1);
1216 }
1217 if (status != 0) {
1218 if (WIFSIGNALED(status)) {
1219 ret = -WTERMSIG(status);
1220 break;
1221 } else if (WIFEXITED(status)) {
1222 ret = WEXITSTATUS(status);
1223 break;
1224 }
1225 }
1226 } while (!WIFEXITED(status) && !WIFSIGNALED(status));
1227
1228 if (stat(ctx->i_stderr, &s) < 0) {
1229 warn("stat failed on child cleanup");
1230 return (-1);
1231 }
1232 if (s.st_size != 0) {
1233 FILE *f;
1234
1235 if ((f = fopen(ctx->i_stderr, "r")) != NULL) {
1236 while (fgets(buf, sizeof (buf), f))
1237 (void) fprintf(stderr, "%s", buf);
1238 (void) fflush(stderr);
1239 (void) fclose(f);
1240 }
1241 }
1242 (void) unlink(ctx->i_stderr);
1243 free(ctx->i_stderr);
1244
1245 /*
1246 * cc returns an error code when given -V; we want that to succeed.
1247 */
1248 if (ctx->i_flags & CW_F_PROG)
1249 return (0);
1250
1251 return (ret);
1252 }
1253
1254 static int
exec_ctx(cw_ictx_t * ctx,int block)1255 exec_ctx(cw_ictx_t *ctx, int block)
1256 {
1257 if ((ctx->i_stderr = tempnam(ctx->i_tmpdir, "cw")) == NULL) {
1258 nomem();
1259 return (-1);
1260 }
1261
1262 if ((ctx->i_pid = fork()) == 0) {
1263 int fd;
1264
1265 (void) fclose(stderr);
1266 if ((fd = open(ctx->i_stderr, O_WRONLY | O_CREAT | O_EXCL,
1267 0666)) < 0) {
1268 err(1, "open failed for standard error");
1269 }
1270 if (dup2(fd, 2) < 0) {
1271 err(1, "dup2 failed for standard error");
1272 }
1273 if (fd != 2)
1274 (void) close(fd);
1275 if (freopen("/dev/fd/2", "w", stderr) == NULL) {
1276 err(1, "freopen failed for /dev/fd/2");
1277 }
1278
1279 prepctx(ctx);
1280 exit(invoke(ctx));
1281 }
1282
1283 if (ctx->i_pid < 0) {
1284 err(1, "fork failed");
1285 }
1286
1287 if (block)
1288 return (reap(ctx));
1289
1290 return (0);
1291 }
1292
1293 static void
parse_compiler(const char * spec,cw_compiler_t * compiler)1294 parse_compiler(const char *spec, cw_compiler_t *compiler)
1295 {
1296 char *tspec, *token;
1297
1298 if ((tspec = strdup(spec)) == NULL)
1299 nomem();
1300
1301 if ((token = strsep(&tspec, ",")) == NULL)
1302 errx(1, "Compiler is missing a name: %s", spec);
1303 compiler->c_name = token;
1304
1305 if ((token = strsep(&tspec, ",")) == NULL)
1306 errx(1, "Compiler is missing a path: %s", spec);
1307 compiler->c_path = token;
1308
1309 if ((token = strsep(&tspec, ",")) == NULL)
1310 errx(1, "Compiler is missing a style: %s", spec);
1311
1312 if ((strcasecmp(token, "gnu") == 0) ||
1313 (strcasecmp(token, "gcc") == 0)) {
1314 compiler->c_style = GNU;
1315 } else if ((strcasecmp(token, "sun") == 0) ||
1316 (strcasecmp(token, "cc") == 0)) {
1317 compiler->c_style = SUN;
1318 } else if ((strcasecmp(token, "smatch") == 0)) {
1319 compiler->c_style = SMATCH;
1320 } else {
1321 errx(1, "unknown compiler style: %s", token);
1322 }
1323
1324 if (tspec != NULL)
1325 errx(1, "Excess tokens in compiler: %s", spec);
1326 }
1327
1328 static void
cleanup(cw_ictx_t * ctx)1329 cleanup(cw_ictx_t *ctx)
1330 {
1331 DIR *dirp;
1332 struct dirent *dp;
1333 char buf[MAXPATHLEN];
1334
1335 if ((dirp = opendir(ctx->i_tmpdir)) == NULL) {
1336 if (errno != ENOENT) {
1337 err(1, "couldn't open temp directory: %s",
1338 ctx->i_tmpdir);
1339 } else {
1340 return;
1341 }
1342 }
1343
1344 errno = 0;
1345 while ((dp = readdir(dirp)) != NULL) {
1346 (void) snprintf(buf, MAXPATHLEN, "%s/%s", ctx->i_tmpdir,
1347 dp->d_name);
1348
1349 if (strcmp(dp->d_name, ".") == 0 ||
1350 strcmp(dp->d_name, "..") == 0) {
1351 continue;
1352 }
1353
1354 if (unlink(buf) == -1)
1355 err(1, "failed to unlink temp file: %s", dp->d_name);
1356 errno = 0;
1357 }
1358
1359 if (errno != 0) {
1360 err(1, "failed to read temporary directory: %s",
1361 ctx->i_tmpdir);
1362 }
1363
1364 (void) closedir(dirp);
1365 if (rmdir(ctx->i_tmpdir) != 0) {
1366 err(1, "failed to unlink temporary directory: %s",
1367 ctx->i_tmpdir);
1368 }
1369 }
1370
1371 int
main(int argc,char ** argv)1372 main(int argc, char **argv)
1373 {
1374 int ch;
1375 cw_compiler_t primary = { NULL, NULL, 0 };
1376 cw_compiler_t shadows[10];
1377 int nshadows = 0;
1378 int ret = 0;
1379 bool do_serial;
1380 bool do_exec;
1381 bool vflg = false;
1382 bool Cflg = false;
1383 bool cflg = false;
1384 bool nflg = false;
1385 char *tmpdir;
1386
1387 cw_ictx_t *main_ctx;
1388
1389 static struct option longopts[] = {
1390 { "compiler", no_argument, NULL, 'c' },
1391 { "linker", required_argument, NULL, 'l' },
1392 { "noecho", no_argument, NULL, 'n' },
1393 { "primary", required_argument, NULL, 'p' },
1394 { "shadow", required_argument, NULL, 's' },
1395 { "tag", required_argument, NULL, 't' },
1396 { "versions", no_argument, NULL, 'v' },
1397 { NULL, 0, NULL, 0 },
1398 };
1399
1400
1401 if ((main_ctx = newictx()) == NULL)
1402 nomem();
1403
1404 while ((ch = getopt_long(argc, argv, "C", longopts, NULL)) != -1) {
1405 switch (ch) {
1406 case 'c':
1407 cflg = true;
1408 break;
1409 case 'C':
1410 Cflg = true;
1411 break;
1412 case 'l':
1413 if ((main_ctx->i_linker = strdup(optarg)) == NULL)
1414 nomem();
1415 break;
1416 case 'n':
1417 nflg = true;
1418 break;
1419 case 'p':
1420 if (primary.c_path != NULL) {
1421 warnx("Only one primary compiler may "
1422 "be specified");
1423 usage();
1424 }
1425
1426 parse_compiler(optarg, &primary);
1427 break;
1428 case 's':
1429 if (nshadows >= 10)
1430 errx(1, "May only use 10 shadows at "
1431 "the moment");
1432 parse_compiler(optarg, &shadows[nshadows]);
1433 nshadows++;
1434 break;
1435 case 't': /* Ignored, a diagnostic in build logs only */
1436 break;
1437 case 'v':
1438 vflg = true;
1439 break;
1440 default:
1441 (void) fprintf(stderr, "Did you forget '--'?\n");
1442 usage();
1443 }
1444 }
1445
1446 if (primary.c_path == NULL) {
1447 warnx("A primary compiler must be specified");
1448 usage();
1449 }
1450
1451 do_serial = getenv("CW_SHADOW_SERIAL") != NULL;
1452 do_exec = getenv("CW_NO_EXEC") == NULL;
1453
1454 /* Leave room for argv[0] */
1455 argc -= (optind - 1);
1456 argv += (optind - 1);
1457
1458 main_ctx->i_oldargc = argc;
1459 main_ctx->i_oldargv = argv;
1460 main_ctx->i_flags = CW_F_XLATE;
1461 if (nflg == 0)
1462 main_ctx->i_flags |= CW_F_ECHO;
1463 if (do_exec)
1464 main_ctx->i_flags |= CW_F_EXEC;
1465 if (Cflg)
1466 main_ctx->i_flags |= CW_F_CXX;
1467 main_ctx->i_compiler = &primary;
1468
1469 if (cflg) {
1470 (void) fputs(primary.c_path, stdout);
1471 }
1472
1473 if (vflg) {
1474 (void) printf("cw version %s\n", CW_VERSION);
1475 (void) fflush(stdout);
1476 main_ctx->i_flags &= ~CW_F_ECHO;
1477 main_ctx->i_flags |= CW_F_PROG | CW_F_EXEC;
1478 do_serial = 1;
1479 }
1480
1481 tmpdir = getenv("TMPDIR");
1482 if (tmpdir == NULL)
1483 tmpdir = "/tmp";
1484
1485 if (asprintf(&main_ctx->i_tmpdir, "%s/cw.XXXXXX", tmpdir) == -1)
1486 nomem();
1487
1488 if ((main_ctx->i_tmpdir = mkdtemp(main_ctx->i_tmpdir)) == NULL)
1489 errx(1, "failed to create temporary directory");
1490
1491 ret |= exec_ctx(main_ctx, do_serial);
1492
1493 for (int i = 0; i < nshadows; i++) {
1494 int r;
1495 cw_ictx_t *shadow_ctx;
1496
1497 if ((shadow_ctx = newictx()) == NULL)
1498 nomem();
1499
1500 (void) memcpy(shadow_ctx, main_ctx, sizeof (cw_ictx_t));
1501
1502 shadow_ctx->i_flags |= CW_F_SHADOW;
1503 shadow_ctx->i_compiler = &shadows[i];
1504
1505 r = exec_ctx(shadow_ctx, do_serial);
1506 if (r == 0) {
1507 shadow_ctx->i_next = main_ctx->i_next;
1508 main_ctx->i_next = shadow_ctx;
1509 }
1510 ret |= r;
1511 }
1512
1513 if (!do_serial) {
1514 cw_ictx_t *next = main_ctx;
1515 while (next != NULL) {
1516 cw_ictx_t *toreap = next;
1517 next = next->i_next;
1518 ret |= reap(toreap);
1519 }
1520 }
1521
1522 cleanup(main_ctx);
1523 return (ret);
1524 }
1525