frontend/main.c

   1 /*
   2  * (C) notaz, 2010-2011
   3  *
   4  * This work is licensed under the terms of the GNU GPLv2 or later.
   5  * See the COPYING file in the top-level directory.
   6  */
   7
   8 #include <stdio.h>
   9 #include <string.h>
  10 #include <stdarg.h>
  11 #include <dlfcn.h>
  12 #include <sys/stat.h>
  13 #include <sys/types.h>
  14 #include <unistd.h>
  15 #include <signal.h>
  16 #include <time.h>
  17
  18 #include "main.h"
  19 #include "plugin.h"
  20 #include "plugin_lib.h"
  21 #include "pcnt.h"
  22 #include "menu.h"
  23 #include "../libpcsxcore/misc.h"
  24 #include "../libpcsxcore/new_dynarec/new_dynarec.h"
  25 #include "../plugins/cdrcimg/cdrcimg.h"
  26 #include "common/plat.h"
  27 #include "common/input.h"
  28 #include "common/readpng.h"
  29
  30 int ready_to_go;
  31 unsigned long gpuDisp;
  32 char cfgfile_basename[MAXPATHLEN];
  33 static char *(*real_getenv)(const char *name);
  34 int state_slot;
  35 enum sched_action emu_action, emu_action_old;
  36 char hud_msg[64];
  37 int hud_new_msg;
  38
  39 // from softgpu plugin
  40 extern int UseFrameSkip;
  41
  42 static void make_path(char *buf, size_t size, const char *dir, const char *fname)
  43 {
  44         if (fname)
  45                 snprintf(buf, size, ".%s%s", dir, fname);
  46         else
  47                 snprintf(buf, size, ".%s", dir);
  48 }
  49 #define MAKE_PATH(buf, dir, fname) \
  50         make_path(buf, sizeof(buf), dir, fname)
  51
  52 static void create_profile_dir(const char *directory) {
  53         char path[MAXPATHLEN];
  54
  55         MAKE_PATH(path, directory, NULL);
  56         mkdir(path, S_IRWXU | S_IRWXG);
  57 }
  58
  59 static void CheckSubDir() {
  60         // make sure that ~/.pcsx exists
  61         create_profile_dir(PCSX_DOT_DIR);
  62
  63         create_profile_dir(BIOS_DIR);
  64         create_profile_dir(MEMCARD_DIR);
  65         create_profile_dir(STATES_DIR);
  66         create_profile_dir(PLUGINS_DIR);
  67         create_profile_dir(PLUGINS_CFG_DIR);
  68         create_profile_dir(CHEATS_DIR);
  69         create_profile_dir(PATCHES_DIR);
  70         create_profile_dir(PCSX_DOT_DIR "cfg");
  71         create_profile_dir("/screenshots/");
  72 }
  73
  74 static int get_gameid_filename(char *buf, int size, const char *fmt, int i) {
  75         char trimlabel[33];
  76         int j;
  77
  78         strncpy(trimlabel, CdromLabel, 32);
  79         trimlabel[32] = 0;
  80         for (j = 31; j >= 0; j--)
  81                 if (trimlabel[j] == ' ')
  82                         trimlabel[j] = 0;
  83                 else
  84                         continue;
  85
  86         snprintf(buf, size, fmt, trimlabel, CdromId, i);
  87
  88         return 0;
  89 }
  90
  91 void set_cd_image(const char *fname)
  92 {
  93         const char *ext = NULL;
  94
  95         if (fname != NULL)
  96                 ext = strrchr(fname, '.');
  97
  98         if (ext && (
  99             strcasecmp(ext, ".z") == 0 || strcasecmp(ext, ".bz") == 0 ||
 100             strcasecmp(ext, ".znx") == 0 || strcasecmp(ext, ".pbp") == 0)) {
 101                 SetIsoFile(NULL);
 102                 cdrcimg_set_fname(fname);
 103                 strcpy(Config.Cdr, "builtin_cdrcimg");
 104         } else {
 105                 SetIsoFile(fname);
 106                 strcpy(Config.Cdr, "builtin_cdr");
 107         }
 108 }
 109
 110 static void set_default_paths(void)
 111 {
 112         MAKE_PATH(Config.Mcd1, MEMCARD_DIR, "card1.mcd");
 113         MAKE_PATH(Config.Mcd2, MEMCARD_DIR, "card2.mcd");
 114         strcpy(Config.BiosDir, "bios");
 115
 116         strcpy(Config.PluginsDir, "plugins");
 117         strcpy(Config.Gpu, "builtin_gpu");
 118         strcpy(Config.Spu, "builtin_spu");
 119         strcpy(Config.Cdr, "builtin_cdr");
 120         strcpy(Config.Pad1, "builtin_pad");
 121         strcpy(Config.Pad2, "builtin_pad");
 122         strcpy(Config.Net, "Disabled");
 123         Config.PsxAuto = 1;
 124
 125         snprintf(Config.PatchesDir, sizeof(Config.PatchesDir), "." PATCHES_DIR);
 126 }
 127
 128 void do_emu_action(void)
 129 {
 130         char buf[MAXPATHLEN];
 131         int ret;
 132
 133         emu_action_old = emu_action;
 134
 135         switch (emu_action) {
 136         case SACTION_NONE:
 137                 return;
 138         case SACTION_ENTER_MENU:
 139                 menu_loop();
 140                 return;
 141         case SACTION_LOAD_STATE:
 142                 ret = emu_load_state(state_slot);
 143                 snprintf(hud_msg, sizeof(hud_msg), ret == 0 ? "LOADED" : "FAIL!");
 144                 break;
 145         case SACTION_SAVE_STATE:
 146                 ret = emu_save_state(state_slot);
 147                 snprintf(hud_msg, sizeof(hud_msg), ret == 0 ? "SAVED" : "FAIL!");
 148                 break;
 149         case SACTION_NEXT_SSLOT:
 150                 state_slot++;
 151                 if (state_slot > 9)
 152                         state_slot = 0;
 153                 goto do_state_slot;
 154         case SACTION_PREV_SSLOT:
 155                 state_slot--;
 156                 if (state_slot < 0)
 157                         state_slot = 9;
 158                 goto do_state_slot;
 159         case SACTION_TOGGLE_FSKIP:
 160                 UseFrameSkip ^= 1;
 161                 snprintf(hud_msg, sizeof(hud_msg), "FRAMESKIP %s",
 162                         UseFrameSkip ? "ON" : "OFF");
 163                 break;
 164         case SACTION_SCREENSHOT:
 165                 {
 166                         void *scrbuf;
 167                         int w, h, bpp;
 168                         time_t t = time(NULL);
 169                         struct tm *tb = localtime(&t);
 170                         int ti = tb->tm_yday * 1000000 + tb->tm_hour * 10000 +
 171                                 tb->tm_min * 100 + tb->tm_sec;
 172
 173                         scrbuf = pl_prepare_screenshot(&w, &h, &bpp);
 174                         get_gameid_filename(buf, sizeof(buf),
 175                                 "screenshots/%.32s-%.9s.%d.png", ti);
 176                         ret = -1;
 177                         if (scrbuf != 0 && bpp == 16)
 178                                 ret = writepng(buf, scrbuf, w, h);
 179                         if (ret == 0)
 180                                 snprintf(hud_msg, sizeof(hud_msg), "SCREENSHOT TAKEN");
 181                         break;
 182                 }
 183         }
 184         hud_new_msg = 3;
 185         return;
 186
 187 do_state_slot:
 188         snprintf(hud_msg, sizeof(hud_msg), "STATE SLOT %d [%s]", state_slot,
 189                 emu_check_state(state_slot) == 0 ? "USED" : "FREE");
 190         hud_new_msg = 3;
 191 }
 192
 193 int main(int argc, char *argv[])
 194 {
 195         void *tmp;
 196
 197         tmp = dlopen("/lib/libdl.so.2", RTLD_LAZY);
 198         if (tmp == NULL)
 199                 tmp = dlopen("/lib32/libdl.so.2", RTLD_LAZY);
 200         if (tmp != NULL)
 201                 real_getenv = dlsym(tmp, "getenv");
 202         if (real_getenv == NULL) {
 203                 fprintf(stderr, "%s\n", dlerror());
 204                 return 1;
 205         }
 206         dlclose(tmp);
 207
 208         // what is the name of the config file?
 209         // it may be redefined by -cfg on the command line
 210         strcpy(cfgfile_basename, "pcsx.cfg");
 211
 212         emuLog = stdout;
 213         SetIsoFile(NULL);
 214
 215         memset(&Config, 0, sizeof(Config));
 216
 217         CheckSubDir();
 218         set_default_paths();
 219         strcpy(Config.Bios, "HLE");
 220
 221 #ifdef MAEMO
 222         extern int maemo_main(int argc, char **argv);
 223         return maemo_main(argc, argv);
 224 #else
 225         char file[MAXPATHLEN] = "";
 226         char path[MAXPATHLEN];
 227         const char *cdfile = NULL;
 228         const char *loadst_f = NULL;
 229         int psxout = 0;
 230         int loadst = 0;
 231         int i;
 232
 233         // read command line options
 234         for (i = 1; i < argc; i++) {
 235                      if (!strcmp(argv[i], "-psxout")) psxout = 1;
 236                 else if (!strcmp(argv[i], "-load")) loadst = atol(argv[++i]);
 237                 else if (!strcmp(argv[i], "-cfg")) {
 238                         if (i+1 >= argc) break;
 239                         strncpy(cfgfile_basename, argv[++i], MAXPATHLEN-100);   /* TODO buffer overruns */
 240                         printf("Using config file %s.\n", cfgfile_basename);
 241                 }
 242                 else if (!strcmp(argv[i], "-cdfile")) {
 243                         char isofilename[MAXPATHLEN];
 244
 245                         if (i+1 >= argc) break;
 246                         strncpy(isofilename, argv[++i], MAXPATHLEN);
 247                         if (isofilename[0] != '/') {
 248                                 getcwd(path, MAXPATHLEN);
 249                                 if (strlen(path) + strlen(isofilename) + 1 < MAXPATHLEN) {
 250                                         strcat(path, "/");
 251                                         strcat(path, isofilename);
 252                                         strcpy(isofilename, path);
 253                                 } else
 254                                         isofilename[0] = 0;
 255                         }
 256
 257                         cdfile = isofilename;
 258                 }
 259                 else if (!strcmp(argv[i], "-loadf")) {
 260                         if (i+1 >= argc) break;
 261                         loadst_f = argv[++i];
 262                 }
 263                 else if (!strcmp(argv[i], "-h") ||
 264                          !strcmp(argv[i], "-help") ||
 265                          !strcmp(argv[i], "--help")) {
 266                          printf(PACKAGE_NAME " " PACKAGE_VERSION "\n");
 267                          printf("%s\n", _(
 268                                                         " pcsx [options] [file]\n"
 269                                                         "\toptions:\n"
 270                                                         "\t-cdfile FILE\tRuns a CD image file\n"
 271                                                         "\t-nogui\t\tDon't open the GTK GUI\n"
 272                                                         "\t-cfg FILE\tLoads desired configuration file (default: ~/.pcsx/pcsx.cfg)\n"
 273                                                         "\t-psxout\t\tEnable PSX output\n"
 274                                                         "\t-load STATENUM\tLoads savestate STATENUM (1-5)\n"
 275                                                         "\t-h -help\tDisplay this message\n"
 276                                                         "\tfile\t\tLoads file\n"));
 277                          return 0;
 278                 } else {
 279                         strncpy(file, argv[i], MAXPATHLEN);
 280                         if (file[0] != '/') {
 281                                 getcwd(path, MAXPATHLEN);
 282                                 if (strlen(path) + strlen(file) + 1 < MAXPATHLEN) {
 283                                         strcat(path, "/");
 284                                         strcat(path, file);
 285                                         strcpy(file, path);
 286                                 } else
 287                                         file[0] = 0;
 288                         }
 289                 }
 290         }
 291
 292         if (cdfile)
 293                 set_cd_image(cdfile);
 294
 295         if (SysInit() == -1)
 296                 return 1;
 297
 298         // frontend stuff
 299         in_init();
 300         //in_probe();
 301         plat_init();
 302         menu_init(); // loads config
 303
 304         if (psxout)
 305                 Config.PsxOut = 1;
 306
 307         if (LoadPlugins() == -1) {
 308                 // FIXME: this recovery doesn't work, just delete bad config and bail out
 309                 // SysMessage("could not load plugins, retrying with defaults\n");
 310                 set_default_paths();
 311                 snprintf(path, sizeof(path), "." PCSX_DOT_DIR "%s", cfgfile_basename);
 312                 remove(path);
 313                 SysMessage("Failed loading plugins!");
 314                 return 1;
 315         }
 316         pcnt_hook_plugins();
 317
 318         if (OpenPlugins() == -1) {
 319                 return 1;
 320         }
 321         plugin_call_rearmed_cbs();
 322
 323         CheckCdrom();
 324         SysReset();
 325
 326         if (file[0] != '\0') {
 327                 if (Load(file) != -1)
 328                         ready_to_go = 1;
 329         } else {
 330                 if (cdfile) {
 331                         if (LoadCdrom() == -1) {
 332                                 ClosePlugins();
 333                                 printf(_("Could not load CD-ROM!\n"));
 334                                 return -1;
 335                         }
 336                         ready_to_go = 1;
 337                 }
 338         }
 339
 340         if (ready_to_go) {
 341                 menu_prepare_emu();
 342
 343                 // If a state has been specified, then load that
 344                 if (loadst) {
 345                         int ret = emu_load_state(loadst - 1);
 346                         printf("%s state %d\n", ret ? "failed to load" : "loaded", loadst);
 347                 }
 348                 if (loadst_f) {
 349                         int ret = LoadState(loadst_f);
 350                         printf("%s state file: %s\n", ret ? "failed to load" : "loaded", loadst_f);
 351                 }
 352         }
 353         else
 354                 menu_loop();
 355
 356         pl_start_watchdog();
 357
 358         while (1)
 359         {
 360                 stop = 0;
 361                 emu_action = SACTION_NONE;
 362
 363                 psxCpu->Execute();
 364                 if (emu_action != SACTION_NONE)
 365                         do_emu_action();
 366         }
 367
 368         return 0;
 369 #endif
 370 }
 371
 372 int SysInit() {
 373         if (EmuInit() == -1) {
 374                 printf("PSX emulator couldn't be initialized.\n");
 375                 return -1;
 376         }
 377
 378         LoadMcds(Config.Mcd1, Config.Mcd2);     /* TODO Do we need to have this here, or in the calling main() function?? */
 379
 380         if (Config.Debug) {
 381                 StartDebugger();
 382         }
 383
 384         return 0;
 385 }
 386
 387 void SysRunGui() {
 388         printf("SysRunGui\n");
 389 }
 390
 391 void StartGui() {
 392         printf("StartGui\n");
 393 }
 394
 395 static void dummy_lace()
 396 {
 397 }
 398
 399 void SysReset() {
 400         // rearmed hack: EmuReset() runs some code when real BIOS is used,
 401         // but we usually do reset from menu while GPU is not open yet,
 402         // so we need to prevent updateLace() call..
 403         void *real_lace = GPU_updateLace;
 404         GPU_updateLace = dummy_lace;
 405
 406         EmuReset();
 407
 408         // hmh core forgets this
 409         CDR_stop();
 410
 411         GPU_updateLace = real_lace;
 412 }
 413
 414 void SysClose() {
 415         EmuShutdown();
 416         ReleasePlugins();
 417
 418         StopDebugger();
 419
 420         if (emuLog != NULL) fclose(emuLog);
 421 }
 422
 423 void SysUpdate() {
 424 }
 425
 426 void OnFile_Exit() {
 427         printf("OnFile_Exit\n");
 428 #ifndef MAEMO
 429         menu_finish();
 430 #endif
 431         SysClose();
 432         plat_finish();
 433         exit(0);
 434 }
 435
 436 int get_state_filename(char *buf, int size, int i) {
 437         return get_gameid_filename(buf, size,
 438                 "." STATES_DIR "%.32s-%.9s.%3.3d", i);
 439 }
 440
 441 int emu_check_state(int slot)
 442 {
 443         char fname[MAXPATHLEN];
 444         int ret;
 445
 446         ret = get_state_filename(fname, sizeof(fname), slot);
 447         if (ret != 0)
 448                 return ret;
 449
 450         return CheckState(fname);
 451 }
 452
 453 int emu_save_state(int slot)
 454 {
 455         char fname[MAXPATHLEN];
 456         int ret;
 457
 458         ret = get_state_filename(fname, sizeof(fname), slot);
 459         if (ret != 0)
 460                 return ret;
 461
 462         return SaveState(fname);
 463 }
 464
 465 int emu_load_state(int slot)
 466 {
 467         char fname[MAXPATHLEN];
 468         int ret;
 469
 470         ret = get_state_filename(fname, sizeof(fname), slot);
 471         if (ret != 0)
 472                 return ret;
 473
 474         return LoadState(fname);
 475 }
 476
 477 void SysPrintf(const char *fmt, ...) {
 478         va_list list;
 479         char msg[512];
 480
 481         va_start(list, fmt);
 482         vsprintf(msg, fmt, list);
 483         va_end(list);
 484
 485         fprintf(emuLog, "%s", msg);
 486 }
 487
 488 void SysMessage(const char *fmt, ...) {
 489         va_list list;
 490         char msg[512];
 491
 492         va_start(list, fmt);
 493         vsprintf(msg, fmt, list);
 494         va_end(list);
 495
 496         if (msg[strlen(msg) - 1] == '\n')
 497                 msg[strlen(msg) - 1] = 0;
 498
 499         fprintf(stderr, "%s\n", msg);
 500 }
 501
 502 static void SignalExit(int sig) {
 503         ClosePlugins();
 504         OnFile_Exit();
 505 }
 506
 507 #define PARSEPATH(dst, src) \
 508         ptr = src + strlen(src); \
 509         while (*ptr != '\\' && ptr != src) ptr--; \
 510         if (ptr != src) { \
 511                 strcpy(dst, ptr+1); \
 512         }
 513
 514 static int _OpenPlugins(void) {
 515         int ret;
 516
 517         signal(SIGINT, SignalExit);
 518         signal(SIGPIPE, SignalExit);
 519
 520         GPU_clearDynarec(clearDynarec);
 521
 522         ret = CDR_open();
 523         if (ret < 0) { SysMessage(_("Error opening CD-ROM plugin!")); return -1; }
 524         ret = SPU_open();
 525         if (ret < 0) { SysMessage(_("Error opening SPU plugin!")); return -1; }
 526         SPU_registerCallback(SPUirq);
 527         // pcsx-rearmed: we handle gpu elsewhere
 528         //ret = GPU_open(&gpuDisp, "PCSX", NULL);
 529         //if (ret < 0) { SysMessage(_("Error opening GPU plugin!")); return -1; }
 530         ret = PAD1_open(&gpuDisp);
 531         if (ret < 0) { SysMessage(_("Error opening Controller 1 plugin!")); return -1; }
 532         ret = PAD2_open(&gpuDisp);
 533         if (ret < 0) { SysMessage(_("Error opening Controller 2 plugin!")); return -1; }
 534
 535         if (Config.UseNet && !NetOpened) {
 536                 netInfo info;
 537                 char path[MAXPATHLEN];
 538                 char dotdir[MAXPATHLEN];
 539
 540                 MAKE_PATH(dotdir, "/.pcsx/plugins/", NULL);
 541
 542                 strcpy(info.EmuName, "PCSX " PACKAGE_VERSION);
 543                 strncpy(info.CdromID, CdromId, 9);
 544                 strncpy(info.CdromLabel, CdromLabel, 9);
 545                 info.psxMem = psxM;
 546                 info.GPU_showScreenPic = GPU_showScreenPic;
 547                 info.GPU_displayText = GPU_displayText;
 548                 info.GPU_showScreenPic = GPU_showScreenPic;
 549                 info.PAD_setSensitive = PAD1_setSensitive;
 550                 sprintf(path, "%s%s", Config.BiosDir, Config.Bios);
 551                 strcpy(info.BIOSpath, path);
 552                 strcpy(info.MCD1path, Config.Mcd1);
 553                 strcpy(info.MCD2path, Config.Mcd2);
 554                 sprintf(path, "%s%s", dotdir, Config.Gpu);
 555                 strcpy(info.GPUpath, path);
 556                 sprintf(path, "%s%s", dotdir, Config.Spu);
 557                 strcpy(info.SPUpath, path);
 558                 sprintf(path, "%s%s", dotdir, Config.Cdr);
 559                 strcpy(info.CDRpath, path);
 560                 NET_setInfo(&info);
 561
 562                 ret = NET_open(&gpuDisp);
 563                 if (ret < 0) {
 564                         if (ret == -2) {
 565                                 // -2 is returned when something in the info
 566                                 // changed and needs to be synced
 567                                 char *ptr;
 568
 569                                 PARSEPATH(Config.Bios, info.BIOSpath);
 570                                 PARSEPATH(Config.Gpu,  info.GPUpath);
 571                                 PARSEPATH(Config.Spu,  info.SPUpath);
 572                                 PARSEPATH(Config.Cdr,  info.CDRpath);
 573
 574                                 strcpy(Config.Mcd1, info.MCD1path);
 575                                 strcpy(Config.Mcd2, info.MCD2path);
 576                                 return -2;
 577                         } else {
 578                                 Config.UseNet = FALSE;
 579                         }
 580                 } else {
 581                         if (NET_queryPlayer() == 1) {
 582                                 if (SendPcsxInfo() == -1) Config.UseNet = FALSE;
 583                         } else {
 584                                 if (RecvPcsxInfo() == -1) Config.UseNet = FALSE;
 585                         }
 586                 }
 587                 NetOpened = TRUE;
 588         } else if (Config.UseNet) {
 589                 NET_resume();
 590         }
 591
 592         return 0;
 593 }
 594
 595 int OpenPlugins() {
 596         int ret;
 597
 598         while ((ret = _OpenPlugins()) == -2) {
 599                 ReleasePlugins();
 600                 LoadMcds(Config.Mcd1, Config.Mcd2);
 601                 if (LoadPlugins() == -1) return -1;
 602         }
 603         return ret;
 604 }
 605
 606 void ClosePlugins() {
 607         int ret;
 608
 609         signal(SIGINT, SIG_DFL);
 610         signal(SIGPIPE, SIG_DFL);
 611         ret = CDR_close();
 612         if (ret < 0) { SysMessage(_("Error closing CD-ROM plugin!")); return; }
 613         ret = SPU_close();
 614         if (ret < 0) { SysMessage(_("Error closing SPU plugin!")); return; }
 615         ret = PAD1_close();
 616         if (ret < 0) { SysMessage(_("Error closing Controller 1 Plugin!")); return; }
 617         ret = PAD2_close();
 618         if (ret < 0) { SysMessage(_("Error closing Controller 2 plugin!")); return; }
 619         // pcsx-rearmed: we handle gpu elsewhere
 620         //ret = GPU_close();
 621         //if (ret < 0) { SysMessage(_("Error closing GPU plugin!")); return; }
 622
 623         if (Config.UseNet) {
 624                 NET_pause();
 625         }
 626 }
 627
 628 #if 1
 629 /* this is to avoid having to hack every plugin to stop using $HOME */
 630 char *getenv(const char *name)
 631 {
 632         static char ret[8] = ".";
 633
 634         if (name && strcmp(name, "HOME") == 0 &&
 635                         ((int)name >> 28) == 0) // HACK: let libs find home
 636                 return ret;
 637
 638         return real_getenv(name);
 639 }
 640 #endif
 641
 642 /* we hook statically linked plugins here */
 643 static const char *builtin_plugins[] = {
 644         "builtin_gpu", "builtin_spu", "builtin_cdr", "builtin_pad",
 645         "builtin_cdrcimg",
 646 };
 647
 648 static const int builtin_plugin_ids[] = {
 649         PLUGIN_GPU, PLUGIN_SPU, PLUGIN_CDR, PLUGIN_PAD,
 650         PLUGIN_CDRCIMG,
 651 };
 652
 653 void *SysLoadLibrary(const char *lib) {
 654         const char *tmp = strrchr(lib, '/');
 655         void *ret;
 656         int i;
 657
 658         printf("plugin: %s\n", lib);
 659
 660         if (tmp != NULL) {
 661                 tmp++;
 662                 for (i = 0; i < ARRAY_SIZE(builtin_plugins); i++)
 663                         if (strcmp(tmp, builtin_plugins[i]) == 0)
 664                                 return (void *)(long)(PLUGIN_DL_BASE + builtin_plugin_ids[i]);
 665         }
 666
 667 #if defined(__x86_64__) || defined(__i386__)
 668         // convenience hack
 669         char name[MAXPATHLEN];
 670         snprintf(name, sizeof(name), "%s.x86", lib);
 671         lib = name;
 672 #endif
 673
 674         ret = dlopen(lib, RTLD_NOW);
 675         if (ret == NULL)
 676                 fprintf(stderr, "dlopen: %s\n", dlerror());
 677         return ret;
 678 }
 679
 680 void *SysLoadSym(void *lib, const char *sym) {
 681         unsigned int plugid = (unsigned int)(long)lib;
 682
 683         if (PLUGIN_DL_BASE <= plugid && plugid < PLUGIN_DL_BASE + ARRAY_SIZE(builtin_plugins))
 684                 return plugin_link(plugid - PLUGIN_DL_BASE, sym);
 685
 686         return dlsym(lib, sym);
 687 }
 688
 689 const char *SysLibError() {
 690         return dlerror();
 691 }
 692
 693 void SysCloseLibrary(void *lib) {
 694         unsigned int plugid = (unsigned int)(long)lib;
 695
 696         if (PLUGIN_DL_BASE <= plugid && plugid < PLUGIN_DL_BASE + ARRAY_SIZE(builtin_plugins))
 697                 return;
 698
 699         dlclose(lib);
 700 }
 701