| | 1 | //\r |
| | 2 | // FILE.CPP\r |
| | 3 | //\r |
| | 4 | // File support\r |
| | 5 | // by James Hammons\r |
| | 6 | // (C) 2010 Underground Software\r |
| | 7 | //\r |
| | 8 | // JLH = James Hammons <jlhamm@acm.org>\r |
| | 9 | // JPM = Jean-Paul Mari <djipi.mari@gmail.com>\r |
| | 10 | //\r |
| | 11 | // Who When What\r |
| | 12 | // --- ---------- ------------------------------------------------------------\r |
| | 13 | // JLH 01/16/2010 Created this log ;-)\r |
| | 14 | // JLH 02/28/2010 Added functions to look inside .ZIP files and handle contents\r |
| | 15 | // JLH 06/01/2012 Added function to check ZIP file CRCs against file DB\r |
| | 16 | // JPM June/2016 Visual Studio support, ELF format support and Soft debugger support\r |
| | 17 | // JPM 07/15/2016 DWARF format support\r |
| | 18 | // JPM 04/06/2019 Added ELF sections check\r |
| | 19 | // JPM 03/12/2020 Added ELF section types check and new error messages\r |
| | 20 | //\r |
| | 21 | \r |
| | 22 | #include "file.h"\r |
| | 23 | #if defined(_MSC_VER)\r |
| | 24 | #include "_MSC_VER/config.h"\r |
| | 25 | #endif // _MSC_VER\r |
| | 26 | #include <stdarg.h>\r |
| | 27 | #include <string.h>\r |
| | 28 | #include "crc32.h"\r |
| | 29 | #include "filedb.h"\r |
| | 30 | #include "eeprom.h"\r |
| | 31 | #include "jaguar.h"\r |
| | 32 | #include "log.h"\r |
| | 33 | #include "memory.h"\r |
| | 34 | #include "universalhdr.h"\r |
| | 35 | #include "unzip.h"\r |
| | 36 | #include "zlib.h"\r |
| | 37 | #include "libelf/libelf.h"\r |
| | 38 | #include "libelf/gelf.h"\r |
| | 39 | #include "libdwarf.h"\r |
| | 40 | #include "debugger/ELFManager.h"\r |
| | 41 | #include "debugger/DBGManager.h"\r |
| | 42 | #include "settings.h"\r |
| | 43 | \r |
| | 44 | \r |
| | 45 | // Private function prototypes\r |
| | 46 | \r |
| | 47 | static int gzfilelength(gzFile gd);\r |
| | 48 | //#if defined(_MSC_VER) || defined(__MINGW64__)|| defined(__MINGW32__) || defined(__CYGWIN__)\r |
| | 49 | static bool CheckExtension(const uint8_t *filename, const char *ext);\r |
| | 50 | //#else\r |
| | 51 | //static bool CheckExtension(const char * filename, const char * ext);\r |
| | 52 | //#endif // _MSC_VER\r |
| | 53 | //static int ParseFileType(uint8_t header1, uint8_t header2, uint32_t size);\r |
| | 54 | \r |
| | 55 | // Private variables/enums\r |
| | 56 | \r |
| | 57 | \r |
| | 58 | //\r |
| | 59 | // Generic ROM loading\r |
| | 60 | //\r |
| | 61 | uint32_t JaguarLoadROM(uint8_t * &rom, char * path)\r |
| | 62 | {\r |
| | 63 | // We really should have some kind of sanity checking for the ROM size here to prevent\r |
| | 64 | // a buffer overflow... !!! FIX !!!\r |
| | 65 | #if defined(_MSC_VER)\r |
| | 66 | #pragma message("Warning: !!! FIX !!! Should have sanity checking for ROM size to prevent buffer overflow!")\r |
| | 67 | #else\r |
| | 68 | #warning "!!! FIX !!! Should have sanity checking for ROM size to prevent buffer overflow!"\r |
| | 69 | #endif // _MSC_VER\r |
| | 70 | uint32_t romSize = 0;\r |
| | 71 | \r |
| | 72 | WriteLog("FILE: JaguarLoadROM attempting to load file '%s'...", path);\r |
| | 73 | char * ext = strrchr(path, '.');\r |
| | 74 | \r |
| | 75 | // No filename extension == YUO FAIL IT (it is loading the file).\r |
| | 76 | // This is naive, but it works. But should probably come up with something a little\r |
| | 77 | // more robust, to prevent problems with dopes trying to exploit this.\r |
| | 78 | if (ext == NULL)\r |
| | 79 | {\r |
| | 80 | WriteLog("FAILED!\n");\r |
| | 81 | return 0;\r |
| | 82 | }\r |
| | 83 | \r |
| | 84 | WriteLog("\nFILE: Succeeded in finding extension (%s)!\n", ext);\r |
| | 85 | WriteLog("FILE: Loading \"%s\"...", path);\r |
| | 86 | \r |
| | 87 | if (strcasecmp(ext, ".zip") == 0)\r |
| | 88 | {\r |
| | 89 | // Handle ZIP file loading here...\r |
| | 90 | WriteLog("(ZIPped)...");\r |
| | 91 | \r |
| | 92 | // uint8_t * buffer = NULL;\r |
| | 93 | // romSize = GetFileFromZIP(path, FT_SOFTWARE, buffer);\r |
| | 94 | romSize = GetFileFromZIP(path, FT_SOFTWARE, rom);\r |
| | 95 | \r |
| | 96 | if (romSize == 0)\r |
| | 97 | {\r |
| | 98 | WriteLog("Failed!\n");\r |
| | 99 | return 0;\r |
| | 100 | }\r |
| | 101 | \r |
| | 102 | // memcpy(rom, buffer, romSize);\r |
| | 103 | // delete[] buffer;\r |
| | 104 | }\r |
| | 105 | else\r |
| | 106 | {\r |
| | 107 | // Handle gzipped files transparently [Adam Green]...\r |
| | 108 | \r |
| | 109 | gzFile fp = gzopen(path, "rb");\r |
| | 110 | \r |
| | 111 | if (fp == NULL)\r |
| | 112 | {\r |
| | 113 | WriteLog("Failed!\n");\r |
| | 114 | return 0;\r |
| | 115 | }\r |
| | 116 | \r |
| | 117 | romSize = gzfilelength(fp);\r |
| | 118 | rom = new uint8_t[romSize];\r |
| | 119 | gzseek(fp, 0, SEEK_SET);\r |
| | 120 | gzread(fp, rom, romSize);\r |
| | 121 | gzclose(fp);\r |
| | 122 | }\r |
| | 123 | \r |
| | 124 | WriteLog("OK (%i bytes)\n", romSize);\r |
| | 125 | \r |
| | 126 | return romSize;\r |
| | 127 | }\r |
| | 128 | \r |
| | 129 | \r |
| | 130 | //\r |
| | 131 | // Jaguar file loading\r |
| | 132 | // We do a more intelligent file analysis here instead of relying on (possible\r |
| | 133 | // false) file extensions which people don't seem to give two shits about\r |
| | 134 | // anyway. :-(\r |
| | 135 | //\r |
| | 136 | bool JaguarLoadFile(char * path)\r |
| | 137 | {\r |
| | 138 | Elf *ElfMem;\r |
| | 139 | GElf_Ehdr ElfEhdr, *PtrGElfEhdr;\r |
| | 140 | Elf_Scn *PtrElfScn;\r |
| | 141 | Elf_Data *PtrElfData;\r |
| | 142 | GElf_Shdr GElfShdr, *PtrGElfShdr;\r |
| | 143 | size_t NbrSect;\r |
| | 144 | uint8_t *buffer = NULL;\r |
| | 145 | char *NameSection;\r |
| | 146 | size_t ElfSectionNameType;\r |
| | 147 | int DBGType = DBG_NO_TYPE;\r |
| | 148 | bool error;\r |
| | 149 | int err;\r |
| | 150 | \r |
| | 151 | jaguarROMSize = JaguarLoadROM(buffer, path);\r |
| | 152 | \r |
| | 153 | if (jaguarROMSize == 0)\r |
| | 154 | {\r |
| | 155 | // It's up to the GUI to report errors, not us. :-)\r |
| | 156 | WriteLog("FILE: Could not load ROM from file \"%s\"...\nAborting load!\n", path);\r |
| | 157 | return false;\r |
| | 158 | }\r |
| | 159 | \r |
| | 160 | jaguarMainROMCRC32 = crc32_calcCheckSum(buffer, jaguarROMSize);\r |
| | 161 | WriteLog("CRC: %08X\n", (unsigned int)jaguarMainROMCRC32);\r |
| | 162 | // TODO: Check for EEPROM file in ZIP file. If there is no EEPROM in the user's EEPROM\r |
| | 163 | // directory, copy the one from the ZIP file, if it exists.\r |
| | 164 | EepromInit();\r |
| | 165 | jaguarRunAddress = 0x802000; // For non-BIOS runs, this is true\r |
| | 166 | int fileType = ParseFileType(buffer, jaguarROMSize);\r |
| | 167 | jaguarCartInserted = false;\r |
| | 168 | DBGManager_Reset();\r |
| | 169 | \r |
| | 170 | if (fileType == JST_ROM)\r |
| | 171 | {\r |
| | 172 | jaguarCartInserted = true;\r |
| | 173 | memcpy(jagMemSpace + 0x800000, buffer, jaguarROMSize);\r |
| | 174 | // Checking something...\r |
| | 175 | jaguarRunAddress = GET32(jagMemSpace, 0x800404);\r |
| | 176 | WriteLog("FILE: Cartridge run address is reported as $%X...\n", jaguarRunAddress);\r |
| | 177 | delete[] buffer;\r |
| | 178 | return true;\r |
| | 179 | }\r |
| | 180 | else if (fileType == JST_ALPINE)\r |
| | 181 | {\r |
| | 182 | // File extension ".ROM": Alpine image that loads/runs at $802000\r |
| | 183 | WriteLog("FILE: Setting up Alpine ROM... Run address: 00802000, length: %08X\n", jaguarROMSize);\r |
| | 184 | memset(jagMemSpace + 0x800000, 0xFF, 0x2000);\r |
| | 185 | memcpy(jagMemSpace + 0x802000, buffer, jaguarROMSize);\r |
| | 186 | delete[] buffer;\r |
| | 187 | \r |
| | 188 | // Maybe instead of this, we could try requiring the STUBULATOR ROM? Just a thought...\r |
| | 189 | // Try setting the vector to say, $1000 and putting an instruction there that loops forever:\r |
| | 190 | // This kludge works! Yeah!\r |
| | 191 | SET32(jaguarMainRAM, 0x10, 0x00001000);\r |
| | 192 | SET16(jaguarMainRAM, 0x1000, 0x60FE); // Here: bra Here\r |
| | 193 | return true;\r |
| | 194 | }\r |
| | 195 | else if (fileType == JST_ELF32)\r |
| | 196 | {\r |
| | 197 | DBGType = DBG_ELF;\r |
| | 198 | \r |
| | 199 | char *PtrELFExe = (char *)ELFManager_ExeCopy(buffer, jaguarROMSize);\r |
| | 200 | \r |
| | 201 | if (PtrELFExe != NULL)\r |
| | 202 | {\r |
| | 203 | if ((elf_version(EV_CURRENT) != EV_NONE) && (ElfMem = ELFManager_MemOpen(PtrELFExe, jaguarROMSize)))\r |
| | 204 | {\r |
| | 205 | if (ELFManager_DwarfInit(ElfMem))\r |
| | 206 | {\r |
| | 207 | DBGType |= DBG_ELFDWARF;\r |
| | 208 | }\r |
| | 209 | \r |
| | 210 | if (!elf_getshdrnum(ElfMem, &NbrSect))\r |
| | 211 | {\r |
| | 212 | if (((PtrGElfEhdr = gelf_getehdr(ElfMem, &ElfEhdr)) != NULL) && ((PtrElfScn = elf_getscn(ElfMem, 0)) != NULL))\r |
| | 213 | {\r |
| | 214 | for (error = false; (PtrElfScn != NULL) && (error == false); PtrElfScn = elf_nextscn(ElfMem, PtrElfScn))\r |
| | 215 | {\r |
| | 216 | PtrElfData = NULL;\r |
| | 217 | \r |
| | 218 | if ((PtrGElfShdr = gelf_getshdr(PtrElfScn, &GElfShdr)) == NULL)\r |
| | 219 | {\r |
| | 220 | error = true;\r |
| | 221 | }\r |
| | 222 | else\r |
| | 223 | {\r |
| | 224 | NameSection = elf_strptr(ElfMem, PtrGElfEhdr->e_shstrndx, (size_t)PtrGElfShdr->sh_name);\r |
| | 225 | WriteLog("FILE: ELF Section %s found\n", NameSection);\r |
| | 226 | \r |
| | 227 | if (((ElfSectionNameType = ELFManager_GetSectionType(NameSection)) == ELF_NO_TYPE) && vjs.ELFSectionsCheck)\r |
| | 228 | {\r |
| | 229 | WriteLog("FILE: ELF Section %s not recognized\n", NameSection);\r |
| | 230 | error = true;\r |
| | 231 | }\r |
| | 232 | else\r |
| | 233 | {\r |
| | 234 | switch (PtrGElfShdr->sh_type)\r |
| | 235 | {\r |
| | 236 | case SHT_NULL:\r |
| | 237 | break;\r |
| | 238 | \r |
| | 239 | case SHT_PROGBITS:\r |
| | 240 | if ((PtrGElfShdr->sh_flags & (SHF_ALLOC | SHF_WRITE | SHF_EXECINSTR)))\r |
| | 241 | {\r |
| | 242 | if (PtrGElfShdr->sh_addr >= 0x800000)\r |
| | 243 | {\r |
| | 244 | memcpy(jagMemSpace + PtrGElfShdr->sh_addr, buffer + PtrGElfShdr->sh_offset, PtrGElfShdr->sh_size);\r |
| | 245 | //error = false;\r |
| | 246 | }\r |
| | 247 | else\r |
| | 248 | {\r |
| | 249 | memcpy(jaguarMainRAM + PtrGElfShdr->sh_addr, buffer + PtrGElfShdr->sh_offset, PtrGElfShdr->sh_size);\r |
| | 250 | }\r |
| | 251 | }\r |
| | 252 | else\r |
| | 253 | {\r |
| | 254 | switch (ElfSectionNameType)\r |
| | 255 | {\r |
| | 256 | case ELF_debug_TYPE:\r |
| | 257 | case ELF_debug_abbrev_TYPE:\r |
| | 258 | case ELF_debug_aranges_TYPE:\r |
| | 259 | case ELF_debug_frame_TYPE:\r |
| | 260 | case ELF_debug_info_TYPE:\r |
| | 261 | case ELF_debug_line_TYPE:\r |
| | 262 | case ELF_debug_loc_TYPE:\r |
| | 263 | case ELF_debug_macinfo_TYPE:\r |
| | 264 | case ELF_debug_pubnames_TYPE:\r |
| | 265 | case ELF_debug_pubtypes_TYPE:\r |
| | 266 | case ELF_debug_ranges_TYPE:\r |
| | 267 | case ELF_debug_str_TYPE:\r |
| | 268 | case ELF_debug_types_TYPE: \r |
| | 269 | break;\r |
| | 270 | \r |
| | 271 | case ELF_heap_TYPE:\r |
| | 272 | break;\r |
| | 273 | \r |
| | 274 | case ELF_comment_TYPE:\r |
| | 275 | break;\r |
| | 276 | \r |
| | 277 | default:\r |
| | 278 | WriteLog("FILE: ELF section %s is not recognized\n", NameSection);\r |
| | 279 | error = true;\r |
| | 280 | break;\r |
| | 281 | }\r |
| | 282 | }\r |
| | 283 | break;\r |
| | 284 | \r |
| | 285 | case SHT_NOBITS:\r |
| | 286 | break;\r |
| | 287 | \r |
| | 288 | case SHT_STRTAB:\r |
| | 289 | case SHT_SYMTAB:\r |
| | 290 | while ((error == false) && ((PtrElfData = elf_getdata(PtrElfScn, PtrElfData)) != NULL))\r |
| | 291 | {\r |
| | 292 | if (!ELFManager_AddTab(PtrElfData, ElfSectionNameType))\r |
| | 293 | {\r |
| | 294 | WriteLog("FILE: ELF tab cannot be allocated\n");\r |
| | 295 | error = true;\r |
| | 296 | }\r |
| | 297 | }\r |
| | 298 | break;\r |
| | 299 | \r |
| | 300 | default:\r |
| | 301 | WriteLog("FILE: ELF SHT type %i not recognized\n", PtrGElfShdr->sh_type);\r |
| | 302 | error = true;\r |
| | 303 | break;\r |
| | 304 | }\r |
| | 305 | }\r |
| | 306 | }\r |
| | 307 | }\r |
| | 308 | \r |
| | 309 | // Set the executable address\r |
| | 310 | jaguarRunAddress = (uint32_t)PtrGElfEhdr->e_entry;\r |
| | 311 | WriteLog("FILE: Setting up ELF 32bits... Run address: %08X\n", jaguarRunAddress);\r |
| | 312 | }\r |
| | 313 | else\r |
| | 314 | {\r |
| | 315 | error = true;\r |
| | 316 | }\r |
| | 317 | }\r |
| | 318 | else\r |
| | 319 | {\r |
| | 320 | WriteLog("FILE: Cannot get the number of the ELF sections\n");\r |
| | 321 | error = true;\r |
| | 322 | }\r |
| | 323 | }\r |
| | 324 | else\r |
| | 325 | {\r |
| | 326 | error = true;\r |
| | 327 | WriteLog("FILE: libelf version is not recognized or libelf memory cannot be opened\n");\r |
| | 328 | }\r |
| | 329 | }\r |
| | 330 | else\r |
| | 331 | {\r |
| | 332 | error = true;\r |
| | 333 | WriteLog("FILE: ELFManager cannot allocate memory\n");\r |
| | 334 | }\r |
| | 335 | \r |
| | 336 | delete[] buffer;\r |
| | 337 | \r |
| | 338 | if (error)\r |
| | 339 | {\r |
| | 340 | WriteLog("FILE: ELF parsing error\n");\r |
| | 341 | \r |
| | 342 | if ((err = elf_errno()))\r |
| | 343 | {\r |
| | 344 | WriteLog("FILE: ELF error: %s\n", elf_errmsg(err));\r |
| | 345 | }\r |
| | 346 | \r |
| | 347 | return false;\r |
| | 348 | }\r |
| | 349 | else\r |
| | 350 | {\r |
| | 351 | DBGManager_SetType(DBGType);\r |
| | 352 | return true;\r |
| | 353 | }\r |
| | 354 | }\r |
| | 355 | else if (fileType == JST_ABS_TYPE1)\r |
| | 356 | {\r |
| | 357 | // For ABS type 1, run address == load address\r |
| | 358 | uint32_t loadAddress = GET32(buffer, 0x16),\r |
| | 359 | codeSize = GET32(buffer, 0x02) + GET32(buffer, 0x06);\r |
| | 360 | WriteLog("FILE: Setting up homebrew (ABS-1)... Run address: %08X, length: %08X\n", loadAddress, codeSize);\r |
| | 361 | memcpy(jagMemSpace + loadAddress, buffer + 0x24, codeSize);\r |
| | 362 | delete[] buffer;\r |
| | 363 | jaguarRunAddress = loadAddress;\r |
| | 364 | return true;\r |
| | 365 | }\r |
| | 366 | else if (fileType == JST_ABS_TYPE2)\r |
| | 367 | {\r |
| | 368 | uint32_t loadAddress = GET32(buffer, 0x28), runAddress = GET32(buffer, 0x24),\r |
| | 369 | codeSize = GET32(buffer, 0x18) + GET32(buffer, 0x1C);\r |
| | 370 | WriteLog("FILE: Setting up homebrew (ABS-2)... Run address: %08X, length: %08X\n", runAddress, codeSize);\r |
| | 371 | memcpy(jagMemSpace + loadAddress, buffer + 0xA8, codeSize);\r |
| | 372 | delete[] buffer;\r |
| | 373 | jaguarRunAddress = runAddress;\r |
| | 374 | return true;\r |
| | 375 | }\r |
| | 376 | // NB: This is *wrong*\r |
| | 377 | /*\r |
| | 378 | Basically, if there is no "JAG" at position $1C, then the long there is the load/start\r |
| | 379 | address in LITTLE ENDIAN.\r |
| | 380 | If "JAG" is present, the the next character ("R" or "L") determines the size of the\r |
| | 381 | JagServer command (2 bytes vs. 4). Following that are the commands themselves;\r |
| | 382 | typically it will either be 2 (load) or 3 (load & run). Command headers go like so:\r |
| | 383 | 2:\r |
| | 384 | Load address (long)\r |
| | 385 | Length (long)\r |
| | 386 | payload\r |
| | 387 | 3:\r |
| | 388 | Load address (long)\r |
| | 389 | Length (long)\r |
| | 390 | Run address (long)\r |
| | 391 | payload\r |
| | 392 | 5: (Reset)\r |
| | 393 | [command only]\r |
| | 394 | 7: (Run at address)\r |
| | 395 | Run address (long)\r |
| | 396 | [no payload]\r |
| | 397 | 9: (Clear memory)\r |
| | 398 | Start address (long)\r |
| | 399 | End address (long)\r |
| | 400 | [no payload]\r |
| | 401 | 10: (Poll for commands)\r |
| | 402 | [command only]\r |
| | 403 | 12: (Load & run user program)\r |
| | 404 | filname, terminated with NULL\r |
| | 405 | [no payload]\r |
| | 406 | $FFFF: (Halt)\r |
| | 407 | [no payload]\r |
| | 408 | */\r |
| | 409 | else if (fileType == JST_JAGSERVER)\r |
| | 410 | {\r |
| | 411 | // This kind of shiaut should be in the detection code below...\r |
| | 412 | // (and now it is! :-)\r |
| | 413 | // if (buffer[0x1C] == 'J' && buffer[0x1D] == 'A' && buffer[0x1E] == 'G')\r |
| | 414 | // {\r |
| | 415 | // Still need to do some checking here for type 2 vs. type 3. This assumes 3\r |
| | 416 | // Also, JAGR vs. JAGL (word command size vs. long command size)\r |
| | 417 | uint32_t loadAddress = GET32(buffer, 0x22), runAddress = GET32(buffer, 0x2A);\r |
| | 418 | WriteLog("FILE: Setting up homebrew (Jag Server)... Run address: $%X, length: $%X\n", runAddress, jaguarROMSize - 0x2E);\r |
| | 419 | memcpy(jagMemSpace + loadAddress, buffer + 0x2E, jaguarROMSize - 0x2E);\r |
| | 420 | delete[] buffer;\r |
| | 421 | jaguarRunAddress = runAddress;\r |
| | 422 | \r |
| | 423 | // Hmm. Is this kludge necessary?\r |
| | 424 | SET32(jaguarMainRAM, 0x10, 0x00001000); // Set Exception #4 (Illegal Instruction)\r |
| | 425 | SET16(jaguarMainRAM, 0x1000, 0x60FE); // Here: bra Here\r |
| | 426 | \r |
| | 427 | return true;\r |
| | 428 | // }\r |
| | 429 | // else // Special WTFOMGBBQ type here...\r |
| | 430 | // {\r |
| | 431 | // uint32_t loadAddress = (buffer[0x1F] << 24) | (buffer[0x1E] << 16) | (buffer[0x1D] << 8) | buffer[0x1C];\r |
| | 432 | // WriteLog("FILE: Setting up homebrew (GEMDOS WTFOMGBBQ type)... Run address: $%X, length: $%X\n", loadAddress, jaguarROMSize - 0x20);\r |
| | 433 | // memcpy(jagMemSpace + loadAddress, buffer + 0x20, jaguarROMSize - 0x20);\r |
| | 434 | // delete[] buffer;\r |
| | 435 | // jaguarRunAddress = loadAddress;\r |
| | 436 | // return true;\r |
| | 437 | // }\r |
| | 438 | }\r |
| | 439 | else if (fileType == JST_WTFOMGBBQ)\r |
| | 440 | {\r |
| | 441 | uint32_t loadAddress = (buffer[0x1F] << 24) | (buffer[0x1E] << 16) | (buffer[0x1D] << 8) | buffer[0x1C];\r |
| | 442 | WriteLog("FILE: Setting up homebrew (GEMDOS WTFOMGBBQ type)... Run address: $%X, length: $%X\n", loadAddress, jaguarROMSize - 0x20);\r |
| | 443 | memcpy(jagMemSpace + loadAddress, buffer + 0x20, jaguarROMSize - 0x20);\r |
| | 444 | delete[] buffer;\r |
| | 445 | jaguarRunAddress = loadAddress;\r |
| | 446 | return true;\r |
| | 447 | }\r |
| | 448 | \r |
| | 449 | // We can assume we have JST_NONE at this point. :-P\r |
| | 450 | WriteLog("FILE: Failed to load headerless file.\n");\r |
| | 451 | return false;\r |
| | 452 | }\r |
| | 453 | \r |
| | 454 | \r |
| | 455 | //\r |
| | 456 | // "Debugger" file loading\r |
| | 457 | // To keep the things separate between "Debugger" and "Alpine" loading until usage clarification has been done\r |
| | 458 | //\r |
| | 459 | bool DebuggerLoadFile(char * path)\r |
| | 460 | {\r |
| | 461 | return (AlpineLoadFile(path));\r |
| | 462 | }\r |
| | 463 | \r |
| | 464 | \r |
| | 465 | //\r |
| | 466 | // "Alpine" file loading\r |
| | 467 | // Since the developers were coming after us with torches and pitchforks, we\r |
| | 468 | // decided to allow this kind of thing. ;-) But ONLY FOR THE DEVS, DAMMIT! >:-U\r |
| | 469 | // O_O\r |
| | 470 | //\r |
| | 471 | bool AlpineLoadFile(char * path)\r |
| | 472 | {\r |
| | 473 | uint8_t * buffer = NULL;\r |
| | 474 | jaguarROMSize = JaguarLoadROM(buffer, path);\r |
| | 475 | \r |
| | 476 | if (jaguarROMSize == 0)\r |
| | 477 | {\r |
| | 478 | // It's up to the GUI to deal with failure, not us. ;-)\r |
| | 479 | WriteLog("FILE: Could not load Alpine from file \"%s\"...\nAborting load!\n", path);\r |
| | 480 | return false;\r |
| | 481 | }\r |
| | 482 | \r |
| | 483 | jaguarMainROMCRC32 = crc32_calcCheckSum(buffer, jaguarROMSize);\r |
| | 484 | WriteLog("FILE: CRC is %08X\n", (unsigned int)jaguarMainROMCRC32);\r |
| | 485 | EepromInit();\r |
| | 486 | \r |
| | 487 | jaguarRunAddress = 0x802000;\r |
| | 488 | \r |
| | 489 | WriteLog("FILE: Setting up Alpine ROM with non-standard length... Run address: 00802000, length: %08X\n", jaguarROMSize);\r |
| | 490 | \r |
| | 491 | memset(jagMemSpace + 0x800000, 0xFF, 0x2000);\r |
| | 492 | memcpy(jagMemSpace + 0x802000, buffer, jaguarROMSize);\r |
| | 493 | delete[] buffer;\r |
| | 494 | \r |
| | 495 | // Maybe instead of this, we could try requiring the STUBULATOR ROM? Just a thought...\r |
| | 496 | // Try setting the vector to say, $1000 and putting an instruction there\r |
| | 497 | // that loops forever:\r |
| | 498 | // This kludge works! Yeah!\r |
| | 499 | SET32(jaguarMainRAM, 0x10, 0x00001000); // Set Exception #4 (Illegal Instruction)\r |
| | 500 | SET16(jaguarMainRAM, 0x1000, 0x60FE); // Here: bra Here\r |
| | 501 | \r |
| | 502 | return true;\r |
| | 503 | }\r |
| | 504 | \r |
| | 505 | \r |
| | 506 | //\r |
| | 507 | // Get the length of a (possibly) gzipped file\r |
| | 508 | //\r |
| | 509 | static int gzfilelength(gzFile gd)\r |
| | 510 | {\r |
| | 511 | int size = 0, length = 0;\r |
| | 512 | unsigned char buffer[0x10000];\r |
| | 513 | \r |
| | 514 | gzrewind(gd);\r |
| | 515 | \r |
| | 516 | do\r |
| | 517 | {\r |
| | 518 | // Read in chunks until EOF\r |
| | 519 | size = gzread(gd, buffer, 0x10000);\r |
| | 520 | \r |
| | 521 | if (size <= 0)\r |
| | 522 | break;\r |
| | 523 | \r |
| | 524 | length += size;\r |
| | 525 | }\r |
| | 526 | while (!gzeof(gd));\r |
| | 527 | \r |
| | 528 | gzrewind(gd);\r |
| | 529 | return length;\r |
| | 530 | }\r |
| | 531 | \r |
| | 532 | \r |
| | 533 | //\r |
| | 534 | // Compare extension to passed in filename. If equal, return true; otherwise false.\r |
| | 535 | //\r |
| | 536 | //#if defined(_MSC_VER) || defined(__MINGW64__)|| defined(__MINGW32__) || defined(__CYGWIN__)\r |
| | 537 | static bool CheckExtension(const uint8_t *filename, const char *ext)\r |
| | 538 | //#else\r |
| | 539 | //static bool CheckExtension(const char * filename, const char * ext)\r |
| | 540 | //#endif // _MSC_VER\r |
| | 541 | {\r |
| | 542 | // Sanity checking...\r |
| | 543 | if ((filename == NULL) || (ext == NULL))\r |
| | 544 | return false;\r |
| | 545 | \r |
| | 546 | const char * filenameExt = strrchr((const char *)filename, '.'); // Get the file's extension (if any)\r |
| | 547 | \r |
| | 548 | if (filenameExt == NULL)\r |
| | 549 | return false;\r |
| | 550 | \r |
| | 551 | return (strcasecmp(filenameExt, ext) == 0 ? true : false);\r |
| | 552 | }\r |
| | 553 | \r |
| | 554 | \r |
| | 555 | //\r |
| | 556 | // Get file from .ZIP\r |
| | 557 | // Returns the size of the file inside the .ZIP file that we're looking at\r |
| | 558 | // NOTE: If the thing we're looking for is found, it allocates it in the passed in buffer.\r |
| | 559 | // Which means we have to deallocate it later.\r |
| | 560 | //\r |
| | 561 | uint32_t GetFileFromZIP(const char * zipFile, FileType type, uint8_t * &buffer)\r |
| | 562 | {\r |
| | 563 | // NOTE: We could easily check for this by discarding anything that's larger than the RAM/ROM\r |
| | 564 | // size of the Jaguar console.\r |
| | 565 | #if defined(_MSC_VER)\r |
| | 566 | #pragma message("Warning: !!! FIX !!! Should have sanity checking for ROM size to prevent buffer overflow!")\r |
| | 567 | #else\r |
| | 568 | #warning "!!! FIX !!! Should have sanity checking for ROM size to prevent buffer overflow!"\r |
| | 569 | #endif // _MSC_VER\r |
| | 570 | const char ftStrings[5][32] = { "Software", "EEPROM", "Label", "Box Art", "Controller Overlay" };\r |
| | 571 | // ZIP * zip = openzip(0, 0, zipFile);\r |
| | 572 | FILE * zip = fopen(zipFile, "rb");\r |
| | 573 | \r |
| | 574 | if (zip == NULL)\r |
| | 575 | {\r |
| | 576 | WriteLog("FILE: Could not open file '%s'!\n", zipFile);\r |
| | 577 | return 0;\r |
| | 578 | }\r |
| | 579 | \r |
| | 580 | // zipent * ze;\r |
| | 581 | ZipFileEntry ze;\r |
| | 582 | bool found = false;\r |
| | 583 | \r |
| | 584 | // The order is here is important: If the file is found, we need to short-circuit the\r |
| | 585 | // readzip() call because otherwise, 'ze' will be pointing to the wrong file!\r |
| | 586 | // while (!found && readzip(zip))\r |
| | 587 | while (!found && GetZIPHeader(zip, ze))\r |
| | 588 | {\r |
| | 589 | // ze = &zip->ent;\r |
| | 590 | \r |
| | 591 | // Here we simply rely on the file extension to tell the truth, but we know\r |
| | 592 | // that extensions lie like sons-a-bitches. So this is naive, we need to do\r |
| | 593 | // something a little more robust to keep bad things from happening here.\r |
| | 594 | #if defined(_MSC_VER)\r |
| | 595 | #pragma message("Warning: !!! Checking for image by extension can be fooled !!!")\r |
| | 596 | #else\r |
| | 597 | #warning "!!! Checking for image by extension can be fooled !!!"\r |
| | 598 | #endif // _MSC_VER\r |
| | 599 | if ((type == FT_LABEL) && (CheckExtension(ze.filename, ".png") || CheckExtension(ze.filename, ".jpg") || CheckExtension(ze.filename, ".gif")))\r |
| | 600 | {\r |
| | 601 | found = true;\r |
| | 602 | WriteLog("FILE: Found image file '%s'.\n", ze.filename);\r |
| | 603 | }\r |
| | 604 | \r |
| | 605 | if ((type == FT_SOFTWARE) && (CheckExtension(ze.filename, ".j64")\r |
| | 606 | || CheckExtension(ze.filename, ".rom") || CheckExtension(ze.filename, ".abs")\r |
| | 607 | || CheckExtension(ze.filename, ".cof") || CheckExtension(ze.filename, ".coff")\r |
| | 608 | || CheckExtension(ze.filename, ".jag") || CheckExtension(ze.filename, ".elf")))\r |
| | 609 | {\r |
| | 610 | found = true;\r |
| | 611 | WriteLog("FILE: Found software file '%s'.\n", ze.filename);\r |
| | 612 | }\r |
| | 613 | \r |
| | 614 | if ((type == FT_EEPROM) && (CheckExtension(ze.filename, ".eep") || CheckExtension(ze.filename, ".eeprom")))\r |
| | 615 | {\r |
| | 616 | found = true;\r |
| | 617 | WriteLog("FILE: Found EEPROM file '%s'.\n", ze.filename);\r |
| | 618 | }\r |
| | 619 | \r |
| | 620 | if (!found)\r |
| | 621 | fseek(zip, ze.compressedSize, SEEK_CUR);\r |
| | 622 | }\r |
| | 623 | \r |
| | 624 | uint32_t fileSize = 0;\r |
| | 625 | \r |
| | 626 | if (found)\r |
| | 627 | {\r |
| | 628 | WriteLog("FILE: Uncompressing...");\r |
| | 629 | // Insert file size sanity check here...\r |
| | 630 | buffer = new uint8_t[ze.uncompressedSize];\r |
| | 631 | \r |
| | 632 | // if (readuncompresszip(zip, ze.compressedSize, buffer) == 0)\r |
| | 633 | // if (UncompressFileFromZIP(zip, ze.compressedSize, buffer) == 0)\r |
| | 634 | if (UncompressFileFromZIP(zip, ze, buffer) == 0)\r |
| | 635 | {\r |
| | 636 | fileSize = ze.uncompressedSize;\r |
| | 637 | WriteLog("success! (%u bytes)\n", fileSize);\r |
| | 638 | }\r |
| | 639 | else\r |
| | 640 | {\r |
| | 641 | delete[] buffer;\r |
| | 642 | buffer = NULL;\r |
| | 643 | WriteLog("FAILED!\n");\r |
| | 644 | }\r |
| | 645 | }\r |
| | 646 | else\r |
| | 647 | // Didn't find what we're looking for...\r |
| | 648 | WriteLog("FILE: Failed to find file of type %s...\n", ftStrings[type]);\r |
| | 649 | \r |
| | 650 | // closezip(zip);\r |
| | 651 | fclose(zip);\r |
| | 652 | return fileSize;\r |
| | 653 | }\r |
| | 654 | \r |
| | 655 | \r |
| | 656 | uint32_t GetFileDBIdentityFromZIP(const char * zipFile)\r |
| | 657 | {\r |
| | 658 | FILE * zip = fopen(zipFile, "rb");\r |
| | 659 | \r |
| | 660 | if (zip == NULL)\r |
| | 661 | {\r |
| | 662 | WriteLog("FILE: Could not open file '%s'!\n", zipFile);\r |
| | 663 | return 0;\r |
| | 664 | }\r |
| | 665 | \r |
| | 666 | ZipFileEntry ze;\r |
| | 667 | \r |
| | 668 | // Loop through all files in the zip file under consideration\r |
| | 669 | while (GetZIPHeader(zip, ze))\r |
| | 670 | {\r |
| | 671 | // & loop through all known CRC32s in our file DB to see if it's there!\r |
| | 672 | uint32_t index = 0;\r |
| | 673 | \r |
| | 674 | while (romList[index].crc32 != 0xFFFFFF)\r |
| | 675 | {\r |
| | 676 | if (romList[index].crc32 == ze.crc32)\r |
| | 677 | {\r |
| | 678 | fclose(zip);\r |
| | 679 | return index;\r |
| | 680 | }\r |
| | 681 | \r |
| | 682 | index++;\r |
| | 683 | }\r |
| | 684 | \r |
| | 685 | // We didn't find it, so skip the compressed data...\r |
| | 686 | fseek(zip, ze.compressedSize, SEEK_CUR);\r |
| | 687 | }\r |
| | 688 | \r |
| | 689 | fclose(zip);\r |
| | 690 | return (uint32_t )-1;\r |
| | 691 | }\r |
| | 692 | \r |
| | 693 | \r |
| | 694 | bool FindFileInZIPWithCRC32(const char * zipFile, uint32_t crc)\r |
| | 695 | {\r |
| | 696 | FILE * zip = fopen(zipFile, "rb");\r |
| | 697 | \r |
| | 698 | if (zip == NULL)\r |
| | 699 | {\r |
| | 700 | WriteLog("FILE: Could not open file '%s'!\n", zipFile);\r |
| | 701 | return 0;\r |
| | 702 | }\r |
| | 703 | \r |
| | 704 | ZipFileEntry ze;\r |
| | 705 | \r |
| | 706 | // Loop through all files in the zip file under consideration\r |
| | 707 | while (GetZIPHeader(zip, ze))\r |
| | 708 | {\r |
| | 709 | if (ze.crc32 == crc)\r |
| | 710 | {\r |
| | 711 | fclose(zip);\r |
| | 712 | return true;\r |
| | 713 | }\r |
| | 714 | \r |
| | 715 | fseek(zip, ze.compressedSize, SEEK_CUR);\r |
| | 716 | }\r |
| | 717 | \r |
| | 718 | fclose(zip);\r |
| | 719 | return false;\r |
| | 720 | }\r |
| | 721 | \r |
| | 722 | \r |
| | 723 | //\r |
| | 724 | // Parse the file type based upon file size and/or headers.\r |
| | 725 | //\r |
| | 726 | uint32_t ParseFileType(uint8_t * buffer, uint32_t size)\r |
| | 727 | {\r |
| | 728 | // Check headers first...\r |
| | 729 | \r |
| | 730 | // ELF 32bits\r |
| | 731 | if (buffer[EI_CLASS] == ELFCLASS32)\r |
| | 732 | {\r |
| | 733 | if (((BigToLittleEndian16(((Elf32_Ehdr *)buffer)->e_machine) & 0xFF) == EM_68K) && (BigToLittleEndian16(((Elf32_Ehdr *)buffer)->e_type) == ET_EXEC) && (buffer[0] == ELFMAG0) && (buffer[1] == ELFMAG1) && (buffer[2] == ELFMAG2) && (buffer[3] == ELFMAG3))\r |
| | 734 | return JST_ELF32;\r |
| | 735 | }\r |
| | 736 | \r |
| | 737 | // ABS/COFF type 1\r |
| | 738 | if (buffer[0] == 0x60 && buffer[1] == 0x1B)\r |
| | 739 | return JST_ABS_TYPE1;\r |
| | 740 | \r |
| | 741 | // ABS/COFF type 2\r |
| | 742 | if (buffer[0] == 0x01 && buffer[1] == 0x50)\r |
| | 743 | return JST_ABS_TYPE2;\r |
| | 744 | \r |
| | 745 | // Jag Server & other old shite\r |
| | 746 | if (buffer[0] == 0x60 && buffer[1] == 0x1A)\r |
| | 747 | {\r |
| | 748 | if (buffer[0x1C] == 'J' && buffer[0x1D] == 'A' && buffer[0x1E] == 'G')\r |
| | 749 | return JST_JAGSERVER;\r |
| | 750 | else\r |
| | 751 | return JST_WTFOMGBBQ;\r |
| | 752 | }\r |
| | 753 | \r |
| | 754 | // And if that fails, try file sizes...\r |
| | 755 | \r |
| | 756 | // If the file size is divisible by 1M, we probably have an regular ROM.\r |
| | 757 | // We can also check our CRC32 against the internal ROM database to be sure.\r |
| | 758 | // (We also check for the Memory Track cartridge size here as well...)\r |
| | 759 | if ((size % 1048576) == 0 || size == 131072)\r |
| | 760 | return JST_ROM;\r |
| | 761 | \r |
| | 762 | // If the file size + 8192 bytes is divisible by 1M, we probably have an\r |
| | 763 | // Alpine format ROM.\r |
| | 764 | if (((size + 8192) % 1048576) == 0)\r |
| | 765 | return JST_ALPINE;\r |
| | 766 | \r |
| | 767 | // Headerless crap\r |
| | 768 | return JST_NONE;\r |
| | 769 | }\r |
| | 770 | \r |
| | 771 | //\r |
| | 772 | // Check for universal header\r |
| | 773 | //\r |
| | 774 | bool HasUniversalHeader(uint8_t * rom, uint32_t romSize)\r |
| | 775 | {\r |
| | 776 | // Sanity check\r |
| | 777 | if (romSize < 8192)\r |
| | 778 | return false;\r |
| | 779 | \r |
| | 780 | for(int i=0; i<8192; i++)\r |
| | 781 | if (rom[i] != universalCartHeader[i])\r |
| | 782 | return false;\r |
| | 783 | \r |
| | 784 | return true;\r |
| | 785 | }\r |
| | 786 | \r |
| | 787 | #if 0\r |
| | 788 | // Misc. doco\r |
| | 789 | \r |
| | 790 | /*\r |
| | 791 | Stubulator ROM vectors...\r |
| | 792 | handler 001 at $00E00008\r |
| | 793 | handler 002 at $00E008DE\r |
| | 794 | handler 003 at $00E008E2\r |
| | 795 | handler 004 at $00E008E6\r |
| | 796 | handler 005 at $00E008EA\r |
| | 797 | handler 006 at $00E008EE\r |
| | 798 | handler 007 at $00E008F2\r |
| | 799 | handler 008 at $00E0054A\r |
| | 800 | handler 009 at $00E008FA\r |
| | 801 | handler 010 at $00000000\r |
| | 802 | handler 011 at $00000000\r |
| | 803 | handler 012 at $00E008FE\r |
| | 804 | handler 013 at $00E00902\r |
| | 805 | handler 014 at $00E00906\r |
| | 806 | handler 015 at $00E0090A\r |
| | 807 | handler 016 at $00E0090E\r |
| | 808 | handler 017 at $00E00912\r |
| | 809 | handler 018 at $00E00916\r |
| | 810 | handler 019 at $00E0091A\r |
| | 811 | handler 020 at $00E0091E\r |
| | 812 | handler 021 at $00E00922\r |
| | 813 | handler 022 at $00E00926\r |
| | 814 | handler 023 at $00E0092A\r |
| | 815 | handler 024 at $00E0092E\r |
| | 816 | handler 025 at $00E0107A\r |
| | 817 | handler 026 at $00E0107A\r |
| | 818 | handler 027 at $00E0107A\r |
| | 819 | handler 028 at $00E008DA\r |
| | 820 | handler 029 at $00E0107A\r |
| | 821 | handler 030 at $00E0107A\r |
| | 822 | handler 031 at $00E0107A\r |
| | 823 | handler 032 at $00000000\r |
| | 824 | \r |
| | 825 | Let's try setting up the illegal instruction vector for a stubulated jaguar...\r |
| | 826 | \r |
| | 827 | SET32(jaguar_mainRam, 0x08, 0x00E008DE);\r |
| | 828 | SET32(jaguar_mainRam, 0x0C, 0x00E008E2);\r |
| | 829 | SET32(jaguar_mainRam, 0x10, 0x00E008E6); // <-- Should be here (it is)...\r |
| | 830 | SET32(jaguar_mainRam, 0x14, 0x00E008EA);//*/\r |
| | 831 | \r |
| | 832 | /*\r |
| | 833 | ABS Format sleuthing (LBUGDEMO.ABS):\r |
| | 834 | \r |
| | 835 | 000000 60 1B 00 00 05 0C 00 04 62 C0 00 00 04 28 00 00\r |
| | 836 | 000010 12 A6 00 00 00 00 00 80 20 00 FF FF 00 80 25 0C\r |
| | 837 | 000020 00 00 40 00\r |
| | 838 | \r |
| | 839 | DRI-format file detected...\r |
| | 840 | Text segment size = 0x0000050c bytes\r |
| | 841 | Data segment size = 0x000462c0 bytes\r |
| | 842 | BSS Segment size = 0x00000428 bytes\r |
| | 843 | Symbol Table size = 0x000012a6 bytes\r |
| | 844 | Absolute Address for text segment = 0x00802000\r |
| | 845 | Absolute Address for data segment = 0x0080250c\r |
| | 846 | Absolute Address for BSS segment = 0x00004000\r |
| | 847 | \r |
| | 848 | (CRZDEMO.ABS):\r |
| | 849 | 000000 01 50 00 03 00 00 00 00 00 03 83 10 00 00 05 3b\r |
| | 850 | 000010 00 1c 00 03 00 00 01 07 00 00 1d d0 00 03 64 98\r |
| | 851 | 000020 00 06 8b 80 00 80 20 00 00 80 20 00 00 80 3d d0\r |
| | 852 | \r |
| | 853 | 000030 2e 74 78 74 00 00 00 00 00 80 20 00 00 80 20 00 .txt (+36 bytes)\r |
| | 854 | 000040 00 00 1d d0 00 00 00 a8 00 00 00 00 00 00 00 00\r |
| | 855 | 000050 00 00 00 00 00 00 00 20\r |
| | 856 | 000058 2e 64 74 61 00 00 00 00 00 80 3d d0 00 80 3d d0 .dta (+36 bytes)\r |
| | 857 | 000068 00 03 64 98 00 00 1e 78 00 00 00 00 00 00 00 00\r |
| | 858 | 000078 00 00 00 00 00 00 00 40\r |
| | 859 | 000080 2e 62 73 73 00 00 00 00 00 00 50 00 00 00 50 00 .bss (+36 bytes)\r |
| | 860 | 000090 00 06 8b 80 00 03 83 10 00 00 00 00 00 00 00 00\r |
| | 861 | 0000a0 00 00 00 00 00 00 00 80\r |
| | 862 | \r |
| | 863 | Header size is $A8 bytes...\r |
| | 864 | \r |
| | 865 | BSD/COFF format file detected...\r |
| | 866 | 3 sections specified\r |
| | 867 | Symbol Table offset = 230160 ($00038310)\r |
| | 868 | Symbol Table contains 1339 symbol entries ($0000053B)\r |
| | 869 | The additional header size is 28 bytes ($001C)\r |
| | 870 | Magic Number for RUN_HDR = 0x00000107\r |
| | 871 | Text Segment Size = 7632 ($00001DD0)\r |
| | 872 | Data Segment Size = 222360 ($00036498)\r |
| | 873 | BSS Segment Size = 428928 ($00068B80)\r |
| | 874 | Starting Address for executable = 0x00802000\r |
| | 875 | Start of Text Segment = 0x00802000\r |
| | 876 | Start of Data Segment = 0x00803dd0\r |
| | 877 | */\r |
| | 878 | #endif\r |
HCoop / clinton / Virtual-Jaguar-Rx.git / blame_incremental