Commit | Line | Data |
a0d0e21e |
1 | /* dl_aix.xs |
2 | * |
3 | * Written: 8/31/94 by Wayne Scott (wscott@ichips.intel.com) |
4 | * |
5 | * All I did was take Jens-Uwe Mager's libdl emulation library for |
6 | * AIX and merged it with the dl_dlopen.xs file to create a dynamic library |
7 | * package that works for AIX. |
8 | * |
9 | * I did change all malloc's, free's, strdup's, calloc's to use the perl |
10 | * equilvant. I also removed some stuff we will not need. Call fini() |
11 | * on statup... It can probably be trimmed more. |
12 | */ |
13 | |
14 | /* |
15 | * @(#)dlfcn.c 1.5 revision of 93/02/14 20:14:17 |
16 | * This is an unpublished work copyright (c) 1992 Helios Software GmbH |
17 | * 3000 Hannover 1, Germany |
18 | */ |
19 | #include "EXTERN.h" |
20 | #include "perl.h" |
21 | #include "XSUB.h" |
22 | |
23 | #include <stdio.h> |
24 | #include <errno.h> |
25 | #include <string.h> |
26 | #include <stdlib.h> |
27 | #include <sys/types.h> |
28 | #include <sys/ldr.h> |
29 | #include <a.out.h> |
30 | #include <ldfcn.h> |
31 | |
ee580363 |
32 | /* |
33 | * AIX 4.3 does remove some useful definitions from ldfcn.h. Define |
34 | * these here to compensate for that lossage. |
35 | */ |
36 | #ifndef BEGINNING |
37 | # define BEGINNING SEEK_SET |
38 | #endif |
39 | #ifndef FSEEK |
40 | # define FSEEK(ldptr,o,p) fseek(IOPTR(ldptr),(p==BEGINNING)?(OFFSET(ldptr) +o):o,p) |
41 | #endif |
42 | #ifndef FREAD |
43 | # define FREAD(p,s,n,ldptr) fread(p,s,n,IOPTR(ldptr)) |
44 | #endif |
45 | |
1553ab04 |
46 | /* If using PerlIO, redefine these macros from <ldfcn.h> */ |
47 | #ifdef USE_PERLIO |
48 | #define FSEEK(ldptr,o,p) PerlIO_seek(IOPTR(ldptr),(p==BEGINNING)?(OFFSET(ldptr)+o):o,p) |
49 | #define FREAD(p,s,n,ldptr) PerlIO_read(IOPTR(ldptr),p,s*n) |
50 | #endif |
51 | |
a0d0e21e |
52 | /* |
53 | * We simulate dlopen() et al. through a call to load. Because AIX has |
54 | * no call to find an exported symbol we read the loader section of the |
55 | * loaded module and build a list of exported symbols and their virtual |
56 | * address. |
57 | */ |
58 | |
59 | typedef struct { |
60 | char *name; /* the symbols's name */ |
61 | void *addr; /* its relocated virtual address */ |
62 | } Export, *ExportPtr; |
63 | |
64 | /* |
65 | * The void * handle returned from dlopen is actually a ModulePtr. |
66 | */ |
67 | typedef struct Module { |
68 | struct Module *next; |
69 | char *name; /* module name for refcounting */ |
70 | int refCnt; /* the number of references */ |
71 | void *entry; /* entry point from load */ |
72 | int nExports; /* the number of exports found */ |
73 | ExportPtr exports; /* the array of exports */ |
74 | } Module, *ModulePtr; |
75 | |
76 | /* |
77 | * We keep a list of all loaded modules to be able to call the fini |
78 | * handlers at atexit() time. |
79 | */ |
549a6b10 |
80 | static ModulePtr modList; /* XXX threaded */ |
a0d0e21e |
81 | |
82 | /* |
83 | * The last error from one of the dl* routines is kept in static |
84 | * variables here. Each error is returned only once to the caller. |
85 | */ |
549a6b10 |
86 | static char errbuf[BUFSIZ]; /* XXX threaded */ |
87 | static int errvalid; /* XXX threaded */ |
a0d0e21e |
88 | |
89 | static void caterr(char *); |
90 | static int readExports(ModulePtr); |
91 | static void terminate(void); |
a0d0e21e |
92 | |
ce637636 |
93 | static char *strerror_failed = "(strerror failed)"; |
94 | static char *strerror_r_failed = "(strerror_r failed)"; |
95 | |
fd206186 |
96 | char *strerrorcat(char *str, int err) { |
ce637636 |
97 | int strsiz = strlen(str); |
98 | int msgsiz; |
99 | char *msg; |
100 | |
101 | #ifdef USE_THREADS |
102 | char *buf = malloc(BUFSIZ); |
103 | |
104 | if (buf == 0) |
105 | return 0; |
549a6b10 |
106 | if (strerror_r(err, buf, BUFSIZ) == 0) |
ce637636 |
107 | msg = buf; |
108 | else |
109 | msg = strerror_r_failed; |
110 | msgsiz = strlen(msg); |
111 | if (strsiz + msgsiz < BUFSIZ) |
112 | strcat(str, msg); |
113 | free(buf); |
114 | #else |
115 | if ((msg = strerror(err)) == 0) |
116 | msg = strerror_failed; |
117 | msgsiz = strlen(msg); /* Note msg = buf and free() above. */ |
118 | if (strsiz + msgsiz < BUFSIZ) /* Do not move this after #endif. */ |
119 | strcat(str, msg); |
120 | #endif |
121 | |
fd206186 |
122 | return str; |
123 | } |
ce637636 |
124 | |
fd206186 |
125 | char *strerrorcpy(char *str, int err) { |
ce637636 |
126 | int msgsiz; |
127 | char *msg; |
128 | |
129 | #ifdef USE_THREADS |
130 | char *buf = malloc(BUFSIZ); |
131 | |
132 | if (buf == 0) |
133 | return 0; |
549a6b10 |
134 | if (strerror_r(err, buf, BUFSIZ) == 0) |
ce637636 |
135 | msg = buf; |
136 | else |
137 | msg = strerror_r_failed; |
138 | msgsiz = strlen(msg); |
139 | if (msgsiz < BUFSIZ) |
140 | strcpy(str, msg); |
141 | free(buf); |
142 | #else |
143 | if ((msg = strerror(err)) == 0) |
144 | msg = strerror_failed; |
145 | msgsiz = strlen(msg); /* Note msg = buf and free() above. */ |
146 | if (msgsiz < BUFSIZ) /* Do not move this after #endif. */ |
147 | strcpy(str, msg); |
148 | #endif |
149 | |
fd206186 |
150 | return str; |
151 | } |
a0d0e21e |
152 | |
153 | /* ARGSUSED */ |
154 | void *dlopen(char *path, int mode) |
155 | { |
5b877257 |
156 | dTHX; |
a0d0e21e |
157 | register ModulePtr mp; |
549a6b10 |
158 | static int inited; /* XXX threaded */ |
a0d0e21e |
159 | |
160 | /* |
161 | * Upon the first call register a terminate handler that will |
f6b3007c |
162 | * close all libraries. |
a0d0e21e |
163 | */ |
f6b3007c |
164 | if (!inited) { |
165 | inited++; |
a0d0e21e |
166 | atexit(terminate); |
167 | } |
168 | /* |
169 | * Scan the list of modules if have the module already loaded. |
170 | */ |
171 | for (mp = modList; mp; mp = mp->next) |
172 | if (strcmp(mp->name, path) == 0) { |
173 | mp->refCnt++; |
174 | return mp; |
175 | } |
176 | Newz(1000,mp,1,Module); |
177 | if (mp == NULL) { |
178 | errvalid++; |
179 | strcpy(errbuf, "Newz: "); |
fd206186 |
180 | strerrorcat(errbuf, errno); |
a0d0e21e |
181 | return NULL; |
182 | } |
183 | |
184 | if ((mp->name = savepv(path)) == NULL) { |
185 | errvalid++; |
186 | strcpy(errbuf, "savepv: "); |
fd206186 |
187 | strerrorcat(errbuf, errno); |
a0d0e21e |
188 | safefree(mp); |
189 | return NULL; |
190 | } |
549a6b10 |
191 | |
a0d0e21e |
192 | /* |
193 | * load should be declared load(const char *...). Thus we |
194 | * cast the path to a normal char *. Ugly. |
195 | */ |
549a6b10 |
196 | if ((mp->entry = (void *)load((char *)path, |
197 | #ifdef L_LIBPATH_EXEC |
198 | L_LIBPATH_EXEC | |
199 | #endif |
200 | L_NOAUTODEFER, |
201 | NULL)) == NULL) { |
202 | int saverrno = errno; |
203 | |
a0d0e21e |
204 | safefree(mp->name); |
205 | safefree(mp); |
206 | errvalid++; |
207 | strcpy(errbuf, "dlopen: "); |
208 | strcat(errbuf, path); |
209 | strcat(errbuf, ": "); |
210 | /* |
211 | * If AIX says the file is not executable, the error |
212 | * can be further described by querying the loader about |
213 | * the last error. |
214 | */ |
549a6b10 |
215 | if (saverrno == ENOEXEC) { |
216 | char *moreinfo[BUFSIZ/sizeof(char *)]; |
217 | if (loadquery(L_GETMESSAGES, moreinfo, sizeof(moreinfo)) == -1) |
218 | strerrorcpy(errbuf, saverrno); |
a0d0e21e |
219 | else { |
220 | char **p; |
549a6b10 |
221 | for (p = moreinfo; *p; p++) |
a0d0e21e |
222 | caterr(*p); |
223 | } |
224 | } else |
549a6b10 |
225 | strerrorcat(errbuf, saverrno); |
a0d0e21e |
226 | return NULL; |
227 | } |
228 | mp->refCnt = 1; |
229 | mp->next = modList; |
230 | modList = mp; |
f6b3007c |
231 | /* |
232 | * Assume anonymous exports come from the module this dlopen |
233 | * is linked into, that holds true as long as dlopen and all |
234 | * of the perl core are in the same shared object. |
235 | */ |
236 | if (loadbind(0, (void *)dlopen, mp->entry) == -1) { |
549a6b10 |
237 | int saverrno = errno; |
238 | |
a0d0e21e |
239 | dlclose(mp); |
240 | errvalid++; |
241 | strcpy(errbuf, "loadbind: "); |
549a6b10 |
242 | strerrorcat(errbuf, saverrno); |
a0d0e21e |
243 | return NULL; |
244 | } |
245 | if (readExports(mp) == -1) { |
246 | dlclose(mp); |
247 | return NULL; |
248 | } |
249 | return mp; |
250 | } |
251 | |
252 | /* |
253 | * Attempt to decipher an AIX loader error message and append it |
254 | * to our static error message buffer. |
255 | */ |
256 | static void caterr(char *s) |
257 | { |
258 | register char *p = s; |
259 | |
260 | while (*p >= '0' && *p <= '9') |
261 | p++; |
262 | switch(atoi(s)) { |
263 | case L_ERROR_TOOMANY: |
264 | strcat(errbuf, "to many errors"); |
265 | break; |
266 | case L_ERROR_NOLIB: |
267 | strcat(errbuf, "can't load library"); |
268 | strcat(errbuf, p); |
269 | break; |
270 | case L_ERROR_UNDEF: |
271 | strcat(errbuf, "can't find symbol"); |
272 | strcat(errbuf, p); |
273 | break; |
274 | case L_ERROR_RLDBAD: |
275 | strcat(errbuf, "bad RLD"); |
276 | strcat(errbuf, p); |
277 | break; |
278 | case L_ERROR_FORMAT: |
279 | strcat(errbuf, "bad exec format in"); |
280 | strcat(errbuf, p); |
281 | break; |
282 | case L_ERROR_ERRNO: |
fd206186 |
283 | strerrorcat(errbuf, atoi(++p)); |
a0d0e21e |
284 | break; |
285 | default: |
286 | strcat(errbuf, s); |
287 | break; |
288 | } |
289 | } |
290 | |
291 | void *dlsym(void *handle, const char *symbol) |
292 | { |
293 | register ModulePtr mp = (ModulePtr)handle; |
294 | register ExportPtr ep; |
295 | register int i; |
296 | |
297 | /* |
298 | * Could speed up search, but I assume that one assigns |
299 | * the result to function pointers anyways. |
300 | */ |
301 | for (ep = mp->exports, i = mp->nExports; i; i--, ep++) |
302 | if (strcmp(ep->name, symbol) == 0) |
303 | return ep->addr; |
304 | errvalid++; |
305 | strcpy(errbuf, "dlsym: undefined symbol "); |
306 | strcat(errbuf, symbol); |
307 | return NULL; |
308 | } |
309 | |
310 | char *dlerror(void) |
311 | { |
312 | if (errvalid) { |
313 | errvalid = 0; |
314 | return errbuf; |
315 | } |
316 | return NULL; |
317 | } |
318 | |
319 | int dlclose(void *handle) |
320 | { |
321 | register ModulePtr mp = (ModulePtr)handle; |
322 | int result; |
323 | register ModulePtr mp1; |
324 | |
325 | if (--mp->refCnt > 0) |
326 | return 0; |
327 | result = unload(mp->entry); |
328 | if (result == -1) { |
329 | errvalid++; |
fd206186 |
330 | strerrorcpy(errbuf, errno); |
a0d0e21e |
331 | } |
332 | if (mp->exports) { |
333 | register ExportPtr ep; |
334 | register int i; |
335 | for (ep = mp->exports, i = mp->nExports; i; i--, ep++) |
336 | if (ep->name) |
337 | safefree(ep->name); |
338 | safefree(mp->exports); |
339 | } |
340 | if (mp == modList) |
341 | modList = mp->next; |
342 | else { |
343 | for (mp1 = modList; mp1; mp1 = mp1->next) |
344 | if (mp1->next == mp) { |
345 | mp1->next = mp->next; |
346 | break; |
347 | } |
348 | } |
349 | safefree(mp->name); |
350 | safefree(mp); |
351 | return result; |
352 | } |
353 | |
354 | static void terminate(void) |
355 | { |
356 | while (modList) |
357 | dlclose(modList); |
358 | } |
359 | |
360 | /* Added by Wayne Scott |
361 | * This is needed because the ldopen system call calls |
362 | * calloc to allocated a block of date. The ldclose call calls free. |
363 | * Without this we get this system calloc and perl's free, resulting |
364 | * in a "Bad free" message. This way we always use perl's malloc. |
365 | */ |
366 | void *calloc(size_t ne, size_t sz) |
367 | { |
368 | void *out; |
369 | |
370 | out = (void *) safemalloc(ne*sz); |
371 | memzero(out, ne*sz); |
372 | return(out); |
373 | } |
374 | |
375 | /* |
376 | * Build the export table from the XCOFF .loader section. |
377 | */ |
378 | static int readExports(ModulePtr mp) |
379 | { |
5b877257 |
380 | dTHX; |
a0d0e21e |
381 | LDFILE *ldp = NULL; |
382 | SCNHDR sh; |
383 | LDHDR *lhp; |
384 | char *ldbuf; |
385 | LDSYM *ls; |
386 | int i; |
387 | ExportPtr ep; |
388 | |
389 | if ((ldp = ldopen(mp->name, ldp)) == NULL) { |
390 | struct ld_info *lp; |
391 | char *buf; |
392 | int size = 4*1024; |
393 | if (errno != ENOENT) { |
394 | errvalid++; |
395 | strcpy(errbuf, "readExports: "); |
fd206186 |
396 | strerrorcat(errbuf, errno); |
a0d0e21e |
397 | return -1; |
398 | } |
399 | /* |
400 | * The module might be loaded due to the LIBPATH |
401 | * environment variable. Search for the loaded |
402 | * module using L_GETINFO. |
403 | */ |
404 | if ((buf = safemalloc(size)) == NULL) { |
405 | errvalid++; |
406 | strcpy(errbuf, "readExports: "); |
fd206186 |
407 | strerrorcat(errbuf, errno); |
a0d0e21e |
408 | return -1; |
409 | } |
410 | while ((i = loadquery(L_GETINFO, buf, size)) == -1 && errno == ENOMEM) { |
411 | safefree(buf); |
412 | size += 4*1024; |
413 | if ((buf = safemalloc(size)) == NULL) { |
414 | errvalid++; |
415 | strcpy(errbuf, "readExports: "); |
fd206186 |
416 | strerrorcat(errbuf, errno); |
a0d0e21e |
417 | return -1; |
418 | } |
419 | } |
420 | if (i == -1) { |
421 | errvalid++; |
422 | strcpy(errbuf, "readExports: "); |
fd206186 |
423 | strerrorcat(errbuf, errno); |
a0d0e21e |
424 | safefree(buf); |
425 | return -1; |
426 | } |
427 | /* |
428 | * Traverse the list of loaded modules. The entry point |
429 | * returned by load() does actually point to the data |
430 | * segment origin. |
431 | */ |
432 | lp = (struct ld_info *)buf; |
433 | while (lp) { |
434 | if (lp->ldinfo_dataorg == mp->entry) { |
435 | ldp = ldopen(lp->ldinfo_filename, ldp); |
436 | break; |
437 | } |
438 | if (lp->ldinfo_next == 0) |
439 | lp = NULL; |
440 | else |
441 | lp = (struct ld_info *)((char *)lp + lp->ldinfo_next); |
442 | } |
443 | safefree(buf); |
444 | if (!ldp) { |
445 | errvalid++; |
446 | strcpy(errbuf, "readExports: "); |
fd206186 |
447 | strerrorcat(errbuf, errno); |
a0d0e21e |
448 | return -1; |
449 | } |
450 | } |
451 | if (TYPE(ldp) != U802TOCMAGIC) { |
452 | errvalid++; |
453 | strcpy(errbuf, "readExports: bad magic"); |
454 | while(ldclose(ldp) == FAILURE) |
455 | ; |
456 | return -1; |
457 | } |
458 | if (ldnshread(ldp, _LOADER, &sh) != SUCCESS) { |
459 | errvalid++; |
460 | strcpy(errbuf, "readExports: cannot read loader section header"); |
461 | while(ldclose(ldp) == FAILURE) |
462 | ; |
463 | return -1; |
464 | } |
465 | /* |
466 | * We read the complete loader section in one chunk, this makes |
467 | * finding long symbol names residing in the string table easier. |
468 | */ |
469 | if ((ldbuf = (char *)safemalloc(sh.s_size)) == NULL) { |
470 | errvalid++; |
471 | strcpy(errbuf, "readExports: "); |
fd206186 |
472 | strerrorcat(errbuf, errno); |
a0d0e21e |
473 | while(ldclose(ldp) == FAILURE) |
474 | ; |
475 | return -1; |
476 | } |
477 | if (FSEEK(ldp, sh.s_scnptr, BEGINNING) != OKFSEEK) { |
478 | errvalid++; |
479 | strcpy(errbuf, "readExports: cannot seek to loader section"); |
480 | safefree(ldbuf); |
481 | while(ldclose(ldp) == FAILURE) |
482 | ; |
483 | return -1; |
484 | } |
1553ab04 |
485 | /* This first case is a hack, since it assumes that the 3rd parameter to |
486 | FREAD is 1. See the redefinition of FREAD above to see how this works. */ |
487 | #ifdef USE_PERLIO |
488 | if (FREAD(ldbuf, sh.s_size, 1, ldp) != sh.s_size) { |
489 | #else |
a0d0e21e |
490 | if (FREAD(ldbuf, sh.s_size, 1, ldp) != 1) { |
1553ab04 |
491 | #endif |
a0d0e21e |
492 | errvalid++; |
493 | strcpy(errbuf, "readExports: cannot read loader section"); |
494 | safefree(ldbuf); |
495 | while(ldclose(ldp) == FAILURE) |
496 | ; |
497 | return -1; |
498 | } |
499 | lhp = (LDHDR *)ldbuf; |
500 | ls = (LDSYM *)(ldbuf+LDHDRSZ); |
501 | /* |
502 | * Count the number of exports to include in our export table. |
503 | */ |
504 | for (i = lhp->l_nsyms; i; i--, ls++) { |
505 | if (!LDR_EXPORT(*ls)) |
506 | continue; |
507 | mp->nExports++; |
508 | } |
509 | Newz(1001, mp->exports, mp->nExports, Export); |
510 | if (mp->exports == NULL) { |
511 | errvalid++; |
512 | strcpy(errbuf, "readExports: "); |
fd206186 |
513 | strerrorcat(errbuf, errno); |
a0d0e21e |
514 | safefree(ldbuf); |
515 | while(ldclose(ldp) == FAILURE) |
516 | ; |
517 | return -1; |
518 | } |
519 | /* |
520 | * Fill in the export table. All entries are relative to |
521 | * the entry point we got from load. |
522 | */ |
523 | ep = mp->exports; |
524 | ls = (LDSYM *)(ldbuf+LDHDRSZ); |
525 | for (i = lhp->l_nsyms; i; i--, ls++) { |
526 | char *symname; |
527 | if (!LDR_EXPORT(*ls)) |
528 | continue; |
529 | if (ls->l_zeroes == 0) |
530 | symname = ls->l_offset+lhp->l_stoff+ldbuf; |
531 | else |
532 | symname = ls->l_name; |
533 | ep->name = savepv(symname); |
534 | ep->addr = (void *)((unsigned long)mp->entry + ls->l_value); |
535 | ep++; |
536 | } |
537 | safefree(ldbuf); |
538 | while(ldclose(ldp) == FAILURE) |
539 | ; |
540 | return 0; |
541 | } |
542 | |
a0d0e21e |
543 | /* dl_dlopen.xs |
544 | * |
545 | * Platform: SunOS/Solaris, possibly others which use dlopen. |
546 | * Author: Paul Marquess (pmarquess@bfsec.bt.co.uk) |
547 | * Created: 10th July 1994 |
548 | * |
549 | * Modified: |
550 | * 15th July 1994 - Added code to explicitly save any error messages. |
551 | * 3rd August 1994 - Upgraded to v3 spec. |
552 | * 9th August 1994 - Changed to use IV |
553 | * 10th August 1994 - Tim Bunce: Added RTLD_LAZY, switchable debugging, |
554 | * basic FreeBSD support, removed ClearError |
555 | * |
556 | */ |
557 | |
558 | /* Porting notes: |
559 | |
560 | see dl_dlopen.xs |
561 | |
562 | */ |
563 | |
564 | #include "dlutils.c" /* SaveError() etc */ |
565 | |
566 | |
567 | static void |
cea2e8a9 |
568 | dl_private_init(pTHX) |
a0d0e21e |
569 | { |
cea2e8a9 |
570 | (void)dl_generic_private_init(aTHX); |
a0d0e21e |
571 | } |
572 | |
573 | MODULE = DynaLoader PACKAGE = DynaLoader |
574 | |
575 | BOOT: |
cea2e8a9 |
576 | (void)dl_private_init(aTHX); |
a0d0e21e |
577 | |
578 | |
579 | void * |
ff7f3c60 |
580 | dl_load_file(filename, flags=0) |
581 | char * filename |
582 | int flags |
a0d0e21e |
583 | CODE: |
bf49b057 |
584 | DLDEBUG(1,PerlIO_printf(Perl_debug_log, "dl_load_file(%s,%x):\n", filename,flags)); |
ff7f3c60 |
585 | if (flags & 0x01) |
cea2e8a9 |
586 | Perl_warn(aTHX_ "Can't make loaded symbols global on this platform while loading %s",filename); |
a0d0e21e |
587 | RETVAL = dlopen(filename, 1) ; |
bf49b057 |
588 | DLDEBUG(2,PerlIO_printf(Perl_debug_log, " libref=%x\n", RETVAL)); |
a0d0e21e |
589 | ST(0) = sv_newmortal() ; |
590 | if (RETVAL == NULL) |
cea2e8a9 |
591 | SaveError(aTHX_ "%s",dlerror()) ; |
a0d0e21e |
592 | else |
3175b8cd |
593 | sv_setiv( ST(0), PTR2IV(RETVAL) ); |
a0d0e21e |
594 | |
595 | |
596 | void * |
597 | dl_find_symbol(libhandle, symbolname) |
598 | void * libhandle |
599 | char * symbolname |
600 | CODE: |
bf49b057 |
601 | DLDEBUG(2,PerlIO_printf(Perl_debug_log, "dl_find_symbol(handle=%x, symbol=%s)\n", |
a0d0e21e |
602 | libhandle, symbolname)); |
603 | RETVAL = dlsym(libhandle, symbolname); |
bf49b057 |
604 | DLDEBUG(2,PerlIO_printf(Perl_debug_log, " symbolref = %x\n", RETVAL)); |
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605 | ST(0) = sv_newmortal() ; |
606 | if (RETVAL == NULL) |
cea2e8a9 |
607 | SaveError(aTHX_ "%s",dlerror()) ; |
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608 | else |
f66f545a |
609 | sv_setiv( ST(0), PTR2IV(RETVAL)); |
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610 | |
611 | |
612 | void |
613 | dl_undef_symbols() |
614 | PPCODE: |
615 | |
616 | |
617 | |
618 | # These functions should not need changing on any platform: |
619 | |
620 | void |
621 | dl_install_xsub(perl_name, symref, filename="$Package") |
622 | char * perl_name |
623 | void * symref |
624 | char * filename |
625 | CODE: |
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626 | DLDEBUG(2,PerlIO_printf(Perl_debug_log, "dl_install_xsub(name=%s, symref=%x)\n", |
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627 | perl_name, symref)); |
cea2e8a9 |
628 | ST(0) = sv_2mortal(newRV((SV*)newXS(perl_name, |
629 | (void(*)(pTHX_ CV *))symref, |
630 | filename))); |
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631 | |
632 | |
633 | char * |
634 | dl_error() |
635 | CODE: |
636 | RETVAL = LastError ; |
637 | OUTPUT: |
638 | RETVAL |
639 | |
640 | # end. |