HCoop / clinton / Virtual-Jaguar-Rx.git / blame
| Commit | Line | Data |
|---|---|---|
| 60b5816d JPM |
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\r | |
| 15 | // contents\r | |
| 16 | // JLH 06/01/2012 Added function to check ZIP file CRCs against file DB\r | |
| 17 | // JPM 06/06/2016 Visual Studio support\r | |
| 18 | // JPM 06/15/2016 ELF format support\r | |
| 19 | // JPM 06/19/2016 Soft debugger support\r | |
| 20 | // JPM 07/15/2016 DWARF format support\r | |
| 21 | //\r | |
| 22 | \r | |
| 23 | #include "file.h"\r | |
| 24 | #if defined(_MSC_VER)\r | |
| 25 | #include "_MSC_VER/config.h"\r | |
| 26 | #endif // _MSC_VER\r | |
| 27 | #include <stdarg.h>\r | |
| 28 | #include <string.h>\r | |
| 29 | #include "crc32.h"\r | |
| 30 | #include "filedb.h"\r | |
| 31 | #include "eeprom.h"\r | |
| 32 | #include "jaguar.h"\r | |
| 33 | #include "log.h"\r | |
| 34 | #include "memory.h"\r | |
| 35 | #include "universalhdr.h"\r | |
| 36 | #include "unzip.h"\r | |
| 37 | #include "zlib.h"\r | |
| 38 | #include "libelf/libelf.h"\r | |
| 39 | #include "libelf/gelf.h"\r | |
| 40 | #include "libdwarf.h"\r | |
| 60b5816d JPM |
41 | #include "debugger/ELFManager.h"\r |
| 42 | #include "debugger/DBGManager.h"\r | |
| 60b5816d JPM |
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 name: %s\n", NameSection);\r | |
| 226 | \r | |
| 227 | if ((ElfSectionNameType = ELFManager_GetSectionType(NameSection)) == ELF_NO_TYPE)\r | |
| 228 | {\r | |
| 229 | WriteLog("FILE: ELF Section not listed\n");\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_aranges_TYPE:\r | |
| 257 | case ELF_debug_info_TYPE:\r | |
| 258 | case ELF_debug_abbrev_TYPE:\r | |
| 259 | case ELF_debug_line_TYPE:\r | |
| 260 | case ELF_debug_frame_TYPE:\r | |
| 261 | case ELF_debug_ranges_TYPE:\r | |
| 262 | case ELF_debug_str_TYPE:\r | |
| 263 | case ELF_debug_loc_TYPE:\r | |
| 264 | break;\r | |
| 265 | \r | |
| 88b2434e JPM |
266 | case ELF_heap_TYPE:\r |
| 267 | break;\r | |
| 268 | \r | |
| 60b5816d JPM |
269 | case ELF_comment_TYPE:\r |
| 270 | break;\r | |
| 271 | \r | |
| 272 | default:\r | |
| 273 | error = true;\r | |
| 274 | break;\r | |
| 275 | }\r | |
| 276 | }\r | |
| 277 | break;\r | |
| 278 | \r | |
| 279 | case SHT_NOBITS:\r | |
| 280 | break;\r | |
| 281 | \r | |
| 282 | case SHT_STRTAB:\r | |
| 283 | case SHT_SYMTAB:\r | |
| 284 | while ((error == false) && ((PtrElfData = elf_getdata(PtrElfScn, PtrElfData)) != NULL))\r | |
| 285 | {\r | |
| 286 | if (!ELFManager_AddTab(PtrElfData, ElfSectionNameType))\r | |
| 287 | {\r | |
| 288 | error = true;\r | |
| 289 | }\r | |
| 290 | }\r | |
| 291 | break;\r | |
| 292 | \r | |
| 293 | default:\r | |
| 294 | error = true;\r | |
| 295 | break;\r | |
| 296 | }\r | |
| 297 | }\r | |
| 298 | }\r | |
| 299 | }\r | |
| 300 | \r | |
| 301 | jaguarRunAddress = (uint32_t)PtrGElfEhdr->e_entry;\r | |
| 302 | WriteLog("FILE: Setting up ELF 32bits... Run address: %08X\n", jaguarRunAddress);\r | |
| 303 | }\r | |
| 304 | else\r | |
| 305 | {\r | |
| 306 | error = true;\r | |
| 307 | }\r | |
| 308 | }\r | |
| 309 | else\r | |
| 310 | {\r | |
| 311 | error = true;\r | |
| 312 | }\r | |
| 313 | }\r | |
| 314 | else\r | |
| 315 | {\r | |
| 316 | error = true;\r | |
| 317 | WriteLog("FILE: libelf version is not recognized or libelf memory cannot be opened\n");\r | |
| 318 | }\r | |
| 319 | }\r | |
| 320 | else\r | |
| 321 | {\r | |
| 322 | error = true;\r | |
| 323 | WriteLog("FILE: ELFManager cannot allocate memory\n");\r | |
| 324 | }\r | |
| 325 | \r | |
| 326 | delete[] buffer;\r | |
| 327 | \r | |
| 328 | if (error)\r | |
| 329 | {\r | |
| 330 | WriteLog("FILE: ELF parsing error\n");\r | |
| 331 | \r | |
| 332 | if ((err = elf_errno()))\r | |
| 333 | {\r | |
| 334 | WriteLog("FILE: ELF error: %s\n", elf_errmsg(err));\r | |
| 335 | }\r | |
| 336 | \r | |
| 337 | return false;\r | |
| 338 | }\r | |
| 339 | else\r | |
| 340 | {\r | |
| 341 | DBGManager_SetType(DBGType);\r | |
| 342 | return true;\r | |
| 343 | }\r | |
| 344 | }\r | |
| 345 | else if (fileType == JST_ABS_TYPE1)\r | |
| 346 | {\r | |
| 347 | // For ABS type 1, run address == load address\r | |
| 348 | uint32_t loadAddress = GET32(buffer, 0x16),\r | |
| 349 | codeSize = GET32(buffer, 0x02) + GET32(buffer, 0x06);\r | |
| 350 | WriteLog("FILE: Setting up homebrew (ABS-1)... Run address: %08X, length: %08X\n", loadAddress, codeSize);\r | |
| 351 | memcpy(jagMemSpace + loadAddress, buffer + 0x24, codeSize);\r | |
| 352 | delete[] buffer;\r | |
| 353 | jaguarRunAddress = loadAddress;\r | |
| 354 | return true;\r | |
| 355 | }\r | |
| 356 | else if (fileType == JST_ABS_TYPE2)\r | |
| 357 | {\r | |
| 358 | uint32_t loadAddress = GET32(buffer, 0x28), runAddress = GET32(buffer, 0x24),\r | |
| 359 | codeSize = GET32(buffer, 0x18) + GET32(buffer, 0x1C);\r | |
| 360 | WriteLog("FILE: Setting up homebrew (ABS-2)... Run address: %08X, length: %08X\n", runAddress, codeSize);\r | |
| 361 | memcpy(jagMemSpace + loadAddress, buffer + 0xA8, codeSize);\r | |
| 362 | delete[] buffer;\r | |
| 363 | jaguarRunAddress = runAddress;\r | |
| 364 | return true;\r | |
| 365 | }\r | |
| 366 | // NB: This is *wrong*\r | |
| 367 | /*\r | |
| 368 | Basically, if there is no "JAG" at position $1C, then the long there is the load/start\r | |
| 369 | address in LITTLE ENDIAN.\r | |
| 370 | If "JAG" is present, the the next character ("R" or "L") determines the size of the\r | |
| 371 | JagServer command (2 bytes vs. 4). Following that are the commands themselves;\r | |
| 372 | typically it will either be 2 (load) or 3 (load & run). Command headers go like so:\r | |
| 373 | 2:\r | |
| 374 | Load address (long)\r | |
| 375 | Length (long)\r | |
| 376 | payload\r | |
| 377 | 3:\r | |
| 378 | Load address (long)\r | |
| 379 | Length (long)\r | |
| 380 | Run address (long)\r | |
| 381 | payload\r | |
| 382 | 5: (Reset)\r | |
| 383 | [command only]\r | |
| 384 | 7: (Run at address)\r | |
| 385 | Run address (long)\r | |
| 386 | [no payload]\r | |
| 387 | 9: (Clear memory)\r | |
| 388 | Start address (long)\r | |
| 389 | End address (long)\r | |
| 390 | [no payload]\r | |
| 391 | 10: (Poll for commands)\r | |
| 392 | [command only]\r | |
| 393 | 12: (Load & run user program)\r | |
| 394 | filname, terminated with NULL\r | |
| 395 | [no payload]\r | |
| 396 | $FFFF: (Halt)\r | |
| 397 | [no payload]\r | |
| 398 | */\r | |
| 399 | else if (fileType == JST_JAGSERVER)\r | |
| 400 | {\r | |
| 401 | // This kind of shiaut should be in the detection code below...\r | |
| 402 | // (and now it is! :-)\r | |
| 403 | // if (buffer[0x1C] == 'J' && buffer[0x1D] == 'A' && buffer[0x1E] == 'G')\r | |
| 404 | // {\r | |
| 405 | // Still need to do some checking here for type 2 vs. type 3. This assumes 3\r | |
| 406 | // Also, JAGR vs. JAGL (word command size vs. long command size)\r | |
| 407 | uint32_t loadAddress = GET32(buffer, 0x22), runAddress = GET32(buffer, 0x2A);\r | |
| 408 | WriteLog("FILE: Setting up homebrew (Jag Server)... Run address: $%X, length: $%X\n", runAddress, jaguarROMSize - 0x2E);\r | |
| 409 | memcpy(jagMemSpace + loadAddress, buffer + 0x2E, jaguarROMSize - 0x2E);\r | |
| 410 | delete[] buffer;\r | |
| 411 | jaguarRunAddress = runAddress;\r | |
| 412 | \r | |
| 413 | // Hmm. Is this kludge necessary?\r | |
| 414 | SET32(jaguarMainRAM, 0x10, 0x00001000); // Set Exception #4 (Illegal Instruction)\r | |
| 415 | SET16(jaguarMainRAM, 0x1000, 0x60FE); // Here: bra Here\r | |
| 416 | \r | |
| 417 | return true;\r | |
| 418 | // }\r | |
| 419 | // else // Special WTFOMGBBQ type here...\r | |
| 420 | // {\r | |
| 421 | // uint32_t loadAddress = (buffer[0x1F] << 24) | (buffer[0x1E] << 16) | (buffer[0x1D] << 8) | buffer[0x1C];\r | |
| 422 | // WriteLog("FILE: Setting up homebrew (GEMDOS WTFOMGBBQ type)... Run address: $%X, length: $%X\n", loadAddress, jaguarROMSize - 0x20);\r | |
| 423 | // memcpy(jagMemSpace + loadAddress, buffer + 0x20, jaguarROMSize - 0x20);\r | |
| 424 | // delete[] buffer;\r | |
| 425 | // jaguarRunAddress = loadAddress;\r | |
| 426 | // return true;\r | |
| 427 | // }\r | |
| 428 | }\r | |
| 429 | else if (fileType == JST_WTFOMGBBQ)\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 | // We can assume we have JST_NONE at this point. :-P\r | |
| 440 | WriteLog("FILE: Failed to load headerless file.\n");\r | |
| 441 | return false;\r | |
| 442 | }\r | |
| 443 | \r | |
| 444 | \r | |
| 445 | //\r | |
| 446 | // "Debugger" file loading\r | |
| 447 | // To keep the things separate between "Debugger" and "Alpine" loading until usage clarification has been done\r | |
| 448 | //\r | |
| 449 | bool DebuggerLoadFile(char * path)\r | |
| 450 | {\r | |
| 451 | return (AlpineLoadFile(path));\r | |
| 452 | }\r | |
| 453 | \r | |
| 454 | \r | |
| 455 | //\r | |
| 456 | // "Alpine" file loading\r | |
| 457 | // Since the developers were coming after us with torches and pitchforks, we\r | |
| 458 | // decided to allow this kind of thing. ;-) But ONLY FOR THE DEVS, DAMMIT! >:-U\r | |
| 459 | // O_O\r | |
| 460 | //\r | |
| 461 | bool AlpineLoadFile(char * path)\r | |
| 462 | {\r | |
| 463 | uint8_t * buffer = NULL;\r | |
| 464 | jaguarROMSize = JaguarLoadROM(buffer, path);\r | |
| 465 | \r | |
| 466 | if (jaguarROMSize == 0)\r | |
| 467 | {\r | |
| 468 | // It's up to the GUI to deal with failure, not us. ;-)\r | |
| 469 | WriteLog("FILE: Could not load Alpine from file \"%s\"...\nAborting load!\n", path);\r | |
| 470 | return false;\r | |
| 471 | }\r | |
| 472 | \r | |
| 473 | jaguarMainROMCRC32 = crc32_calcCheckSum(buffer, jaguarROMSize);\r | |
| 474 | WriteLog("FILE: CRC is %08X\n", (unsigned int)jaguarMainROMCRC32);\r | |
| 475 | EepromInit();\r | |
| 476 | \r | |
| 477 | jaguarRunAddress = 0x802000;\r | |
| 478 | \r | |
| 479 | WriteLog("FILE: Setting up Alpine ROM with non-standard length... Run address: 00802000, length: %08X\n", jaguarROMSize);\r | |
| 480 | \r | |
| 481 | memset(jagMemSpace + 0x800000, 0xFF, 0x2000);\r | |
| 482 | memcpy(jagMemSpace + 0x802000, buffer, jaguarROMSize);\r | |
| 483 | delete[] buffer;\r | |
| 484 | \r | |
| 485 | // Maybe instead of this, we could try requiring the STUBULATOR ROM? Just a thought...\r | |
| 486 | // Try setting the vector to say, $1000 and putting an instruction there\r | |
| 487 | // that loops forever:\r | |
| 488 | // This kludge works! Yeah!\r | |
| 489 | SET32(jaguarMainRAM, 0x10, 0x00001000); // Set Exception #4 (Illegal Instruction)\r | |
| 490 | SET16(jaguarMainRAM, 0x1000, 0x60FE); // Here: bra Here\r | |
| 491 | \r | |
| 492 | return true;\r | |
| 493 | }\r | |
| 494 | \r | |
| 495 | \r | |
| 496 | //\r | |
| 497 | // Get the length of a (possibly) gzipped file\r | |
| 498 | //\r | |
| 499 | static int gzfilelength(gzFile gd)\r | |
| 500 | {\r | |
| 501 | int size = 0, length = 0;\r | |
| 502 | unsigned char buffer[0x10000];\r | |
| 503 | \r | |
| 504 | gzrewind(gd);\r | |
| 505 | \r | |
| 506 | do\r | |
| 507 | {\r | |
| 508 | // Read in chunks until EOF\r | |
| 509 | size = gzread(gd, buffer, 0x10000);\r | |
| 510 | \r | |
| 511 | if (size <= 0)\r | |
| 512 | break;\r | |
| 513 | \r | |
| 514 | length += size;\r | |
| 515 | }\r | |
| 516 | while (!gzeof(gd));\r | |
| 517 | \r | |
| 518 | gzrewind(gd);\r | |
| 519 | return length;\r | |
| 520 | }\r | |
| 521 | \r | |
| 522 | \r | |
| 523 | //\r | |
| 524 | // Compare extension to passed in filename. If equal, return true; otherwise false.\r | |
| 525 | //\r | |
| 526 | //#if defined(_MSC_VER) || defined(__MINGW64__)|| defined(__MINGW32__) || defined(__CYGWIN__)\r | |
| 527 | static bool CheckExtension(const uint8_t *filename, const char *ext)\r | |
| 528 | //#else\r | |
| 529 | //static bool CheckExtension(const char * filename, const char * ext)\r | |
| 530 | //#endif // _MSC_VER\r | |
| 531 | {\r | |
| 532 | // Sanity checking...\r | |
| 533 | if ((filename == NULL) || (ext == NULL))\r | |
| 534 | return false;\r | |
| 535 | \r | |
| 536 | const char * filenameExt = strrchr((const char *)filename, '.'); // Get the file's extension (if any)\r | |
| 537 | \r | |
| 538 | if (filenameExt == NULL)\r | |
| 539 | return false;\r | |
| 540 | \r | |
| 541 | return (strcasecmp(filenameExt, ext) == 0 ? true : false);\r | |
| 542 | }\r | |
| 543 | \r | |
| 544 | \r | |
| 545 | //\r | |
| 546 | // Get file from .ZIP\r | |
| 547 | // Returns the size of the file inside the .ZIP file that we're looking at\r | |
| 548 | // NOTE: If the thing we're looking for is found, it allocates it in the passed in buffer.\r | |
| 549 | // Which means we have to deallocate it later.\r | |
| 550 | //\r | |
| 551 | uint32_t GetFileFromZIP(const char * zipFile, FileType type, uint8_t * &buffer)\r | |
| 552 | {\r | |
| 553 | // NOTE: We could easily check for this by discarding anything that's larger than the RAM/ROM\r | |
| 554 | // size of the Jaguar console.\r | |
| 555 | #if defined(_MSC_VER)\r | |
| 556 | #pragma message("Warning: !!! FIX !!! Should have sanity checking for ROM size to prevent buffer overflow!")\r | |
| 557 | #else\r | |
| 558 | #warning "!!! FIX !!! Should have sanity checking for ROM size to prevent buffer overflow!"\r | |
| 559 | #endif // _MSC_VER\r | |
| 560 | const char ftStrings[5][32] = { "Software", "EEPROM", "Label", "Box Art", "Controller Overlay" };\r | |
| 561 | // ZIP * zip = openzip(0, 0, zipFile);\r | |
| 562 | FILE * zip = fopen(zipFile, "rb");\r | |
| 563 | \r | |
| 564 | if (zip == NULL)\r | |
| 565 | {\r | |
| 566 | WriteLog("FILE: Could not open file '%s'!\n", zipFile);\r | |
| 567 | return 0;\r | |
| 568 | }\r | |
| 569 | \r | |
| 570 | // zipent * ze;\r | |
| 571 | ZipFileEntry ze;\r | |
| 572 | bool found = false;\r | |
| 573 | \r | |
| 574 | // The order is here is important: If the file is found, we need to short-circuit the\r | |
| 575 | // readzip() call because otherwise, 'ze' will be pointing to the wrong file!\r | |
| 576 | // while (!found && readzip(zip))\r | |
| 577 | while (!found && GetZIPHeader(zip, ze))\r | |
| 578 | {\r | |
| 579 | // ze = &zip->ent;\r | |
| 580 | \r | |
| 581 | // Here we simply rely on the file extension to tell the truth, but we know\r | |
| 582 | // that extensions lie like sons-a-bitches. So this is naive, we need to do\r | |
| 583 | // something a little more robust to keep bad things from happening here.\r | |
| 584 | #if defined(_MSC_VER)\r | |
| 585 | #pragma message("Warning: !!! Checking for image by extension can be fooled !!!")\r | |
| 586 | #else\r | |
| 587 | #warning "!!! Checking for image by extension can be fooled !!!"\r | |
| 588 | #endif // _MSC_VER\r | |
| 589 | if ((type == FT_LABEL) && (CheckExtension(ze.filename, ".png") || CheckExtension(ze.filename, ".jpg") || CheckExtension(ze.filename, ".gif")))\r | |
| 590 | {\r | |
| 591 | found = true;\r | |
| 592 | WriteLog("FILE: Found image file '%s'.\n", ze.filename);\r | |
| 593 | }\r | |
| 594 | \r | |
| 595 | if ((type == FT_SOFTWARE) && (CheckExtension(ze.filename, ".j64")\r | |
| 596 | || CheckExtension(ze.filename, ".rom") || CheckExtension(ze.filename, ".abs")\r | |
| 597 | || CheckExtension(ze.filename, ".cof") || CheckExtension(ze.filename, ".coff")\r | |
| 598 | || CheckExtension(ze.filename, ".jag") || CheckExtension(ze.filename, ".elf")))\r | |
| 599 | {\r | |
| 600 | found = true;\r | |
| 601 | WriteLog("FILE: Found software file '%s'.\n", ze.filename);\r | |
| 602 | }\r | |
| 603 | \r | |
| 604 | if ((type == FT_EEPROM) && (CheckExtension(ze.filename, ".eep") || CheckExtension(ze.filename, ".eeprom")))\r | |
| 605 | {\r | |
| 606 | found = true;\r | |
| 607 | WriteLog("FILE: Found EEPROM file '%s'.\n", ze.filename);\r | |
| 608 | }\r | |
| 609 | \r | |
| 610 | if (!found)\r | |
| 611 | fseek(zip, ze.compressedSize, SEEK_CUR);\r | |
| 612 | }\r | |
| 613 | \r | |
| 614 | uint32_t fileSize = 0;\r | |
| 615 | \r | |
| 616 | if (found)\r | |
| 617 | {\r | |
| 618 | WriteLog("FILE: Uncompressing...");\r | |
| 619 | // Insert file size sanity check here...\r | |
| 620 | buffer = new uint8_t[ze.uncompressedSize];\r | |
| 621 | \r | |
| 622 | // if (readuncompresszip(zip, ze.compressedSize, buffer) == 0)\r | |
| 623 | // if (UncompressFileFromZIP(zip, ze.compressedSize, buffer) == 0)\r | |
| 624 | if (UncompressFileFromZIP(zip, ze, buffer) == 0)\r | |
| 625 | {\r | |
| 626 | fileSize = ze.uncompressedSize;\r | |
| 627 | WriteLog("success! (%u bytes)\n", fileSize);\r | |
| 628 | }\r | |
| 629 | else\r | |
| 630 | {\r | |
| 631 | delete[] buffer;\r | |
| 632 | buffer = NULL;\r | |
| 633 | WriteLog("FAILED!\n");\r | |
| 634 | }\r | |
| 635 | }\r | |
| 636 | else\r | |
| 637 | // Didn't find what we're looking for...\r | |
| 638 | WriteLog("FILE: Failed to find file of type %s...\n", ftStrings[type]);\r | |
| 639 | \r | |
| 640 | // closezip(zip);\r | |
| 641 | fclose(zip);\r | |
| 642 | return fileSize;\r | |
| 643 | }\r | |
| 644 | \r | |
| 645 | \r | |
| 646 | uint32_t GetFileDBIdentityFromZIP(const char * zipFile)\r | |
| 647 | {\r | |
| 648 | FILE * zip = fopen(zipFile, "rb");\r | |
| 649 | \r | |
| 650 | if (zip == NULL)\r | |
| 651 | {\r | |
| 652 | WriteLog("FILE: Could not open file '%s'!\n", zipFile);\r | |
| 653 | return 0;\r | |
| 654 | }\r | |
| 655 | \r | |
| 656 | ZipFileEntry ze;\r | |
| 657 | \r | |
| 658 | // Loop through all files in the zip file under consideration\r | |
| 659 | while (GetZIPHeader(zip, ze))\r | |
| 660 | {\r | |
| 661 | // & loop through all known CRC32s in our file DB to see if it's there!\r | |
| 662 | uint32_t index = 0;\r | |
| 663 | \r | |
| 664 | while (romList[index].crc32 != 0xFFFFFF)\r | |
| 665 | {\r | |
| 666 | if (romList[index].crc32 == ze.crc32)\r | |
| 667 | {\r | |
| 668 | fclose(zip);\r | |
| 669 | return index;\r | |
| 670 | }\r | |
| 671 | \r | |
| 672 | index++;\r | |
| 673 | }\r | |
| 674 | \r | |
| 675 | // We didn't find it, so skip the compressed data...\r | |
| 676 | fseek(zip, ze.compressedSize, SEEK_CUR);\r | |
| 677 | }\r | |
| 678 | \r | |
| 679 | fclose(zip);\r | |
| 680 | return (uint32_t )-1;\r | |
| 681 | }\r | |
| 682 | \r | |
| 683 | \r | |
| 684 | bool FindFileInZIPWithCRC32(const char * zipFile, uint32_t crc)\r | |
| 685 | {\r | |
| 686 | FILE * zip = fopen(zipFile, "rb");\r | |
| 687 | \r | |
| 688 | if (zip == NULL)\r | |
| 689 | {\r | |
| 690 | WriteLog("FILE: Could not open file '%s'!\n", zipFile);\r | |
| 691 | return 0;\r | |
| 692 | }\r | |
| 693 | \r | |
| 694 | ZipFileEntry ze;\r | |
| 695 | \r | |
| 696 | // Loop through all files in the zip file under consideration\r | |
| 697 | while (GetZIPHeader(zip, ze))\r | |
| 698 | {\r | |
| 699 | if (ze.crc32 == crc)\r | |
| 700 | {\r | |
| 701 | fclose(zip);\r | |
| 702 | return true;\r | |
| 703 | }\r | |
| 704 | \r | |
| 705 | fseek(zip, ze.compressedSize, SEEK_CUR);\r | |
| 706 | }\r | |
| 707 | \r | |
| 708 | fclose(zip);\r | |
| 709 | return false;\r | |
| 710 | }\r | |
| 711 | \r | |
| 712 | \r | |
| 713 | //\r | |
| 714 | // Parse the file type based upon file size and/or headers.\r | |
| 715 | //\r | |
| 716 | uint32_t ParseFileType(uint8_t * buffer, uint32_t size)\r | |
| 717 | {\r | |
| 718 | // Check headers first...\r | |
| 719 | \r | |
| 720 | // ELF 32bits\r | |
| 721 | if (buffer[EI_CLASS] == ELFCLASS32)\r | |
| 722 | {\r | |
| 723 | 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 | |
| 724 | return JST_ELF32;\r | |
| 725 | }\r | |
| 726 | \r | |
| 727 | // ABS/COFF type 1\r | |
| 728 | if (buffer[0] == 0x60 && buffer[1] == 0x1B)\r | |
| 729 | return JST_ABS_TYPE1;\r | |
| 730 | \r | |
| 731 | // ABS/COFF type 2\r | |
| 732 | if (buffer[0] == 0x01 && buffer[1] == 0x50)\r | |
| 733 | return JST_ABS_TYPE2;\r | |
| 734 | \r | |
| 735 | // Jag Server & other old shite\r | |
| 736 | if (buffer[0] == 0x60 && buffer[1] == 0x1A)\r | |
| 737 | {\r | |
| 738 | if (buffer[0x1C] == 'J' && buffer[0x1D] == 'A' && buffer[0x1E] == 'G')\r | |
| 739 | return JST_JAGSERVER;\r | |
| 740 | else\r | |
| 741 | return JST_WTFOMGBBQ;\r | |
| 742 | }\r | |
| 743 | \r | |
| 744 | // And if that fails, try file sizes...\r | |
| 745 | \r | |
| 746 | // If the file size is divisible by 1M, we probably have an regular ROM.\r | |
| 747 | // We can also check our CRC32 against the internal ROM database to be sure.\r | |
| 748 | // (We also check for the Memory Track cartridge size here as well...)\r | |
| 749 | if ((size % 1048576) == 0 || size == 131072)\r | |
| 750 | return JST_ROM;\r | |
| 751 | \r | |
| 752 | // If the file size + 8192 bytes is divisible by 1M, we probably have an\r | |
| 753 | // Alpine format ROM.\r | |
| 754 | if (((size + 8192) % 1048576) == 0)\r | |
| 755 | return JST_ALPINE;\r | |
| 756 | \r | |
| 757 | // Headerless crap\r | |
| 758 | return JST_NONE;\r | |
| 759 | }\r | |
| 760 | \r | |
| 761 | //\r | |
| 762 | // Check for universal header\r | |
| 763 | //\r | |
| 764 | bool HasUniversalHeader(uint8_t * rom, uint32_t romSize)\r | |
| 765 | {\r | |
| 766 | // Sanity check\r | |
| 767 | if (romSize < 8192)\r | |
| 768 | return false;\r | |
| 769 | \r | |
| 770 | for(int i=0; i<8192; i++)\r | |
| 771 | if (rom[i] != universalCartHeader[i])\r | |
| 772 | return false;\r | |
| 773 | \r | |
| 774 | return true;\r | |
| 775 | }\r | |
| 776 | \r | |
| 777 | #if 0\r | |
| 778 | // Misc. doco\r | |
| 779 | \r | |
| 780 | /*\r | |
| 781 | Stubulator ROM vectors...\r | |
| 782 | handler 001 at $00E00008\r | |
| 783 | handler 002 at $00E008DE\r | |
| 784 | handler 003 at $00E008E2\r | |
| 785 | handler 004 at $00E008E6\r | |
| 786 | handler 005 at $00E008EA\r | |
| 787 | handler 006 at $00E008EE\r | |
| 788 | handler 007 at $00E008F2\r | |
| 789 | handler 008 at $00E0054A\r | |
| 790 | handler 009 at $00E008FA\r | |
| 791 | handler 010 at $00000000\r | |
| 792 | handler 011 at $00000000\r | |
| 793 | handler 012 at $00E008FE\r | |
| 794 | handler 013 at $00E00902\r | |
| 795 | handler 014 at $00E00906\r | |
| 796 | handler 015 at $00E0090A\r | |
| 797 | handler 016 at $00E0090E\r | |
| 798 | handler 017 at $00E00912\r | |
| 799 | handler 018 at $00E00916\r | |
| 800 | handler 019 at $00E0091A\r | |
| 801 | handler 020 at $00E0091E\r | |
| 802 | handler 021 at $00E00922\r | |
| 803 | handler 022 at $00E00926\r | |
| 804 | handler 023 at $00E0092A\r | |
| 805 | handler 024 at $00E0092E\r | |
| 806 | handler 025 at $00E0107A\r | |
| 807 | handler 026 at $00E0107A\r | |
| 808 | handler 027 at $00E0107A\r | |
| 809 | handler 028 at $00E008DA\r | |
| 810 | handler 029 at $00E0107A\r | |
| 811 | handler 030 at $00E0107A\r | |
| 812 | handler 031 at $00E0107A\r | |
| 813 | handler 032 at $00000000\r | |
| 814 | \r | |
| 815 | Let's try setting up the illegal instruction vector for a stubulated jaguar...\r | |
| 816 | \r | |
| 817 | SET32(jaguar_mainRam, 0x08, 0x00E008DE);\r | |
| 818 | SET32(jaguar_mainRam, 0x0C, 0x00E008E2);\r | |
| 819 | SET32(jaguar_mainRam, 0x10, 0x00E008E6); // <-- Should be here (it is)...\r | |
| 820 | SET32(jaguar_mainRam, 0x14, 0x00E008EA);//*/\r | |
| 821 | \r | |
| 822 | /*\r | |
| 823 | ABS Format sleuthing (LBUGDEMO.ABS):\r | |
| 824 | \r | |
| 825 | 000000 60 1B 00 00 05 0C 00 04 62 C0 00 00 04 28 00 00\r | |
| 826 | 000010 12 A6 00 00 00 00 00 80 20 00 FF FF 00 80 25 0C\r | |
| 827 | 000020 00 00 40 00\r | |
| 828 | \r | |
| 829 | DRI-format file detected...\r | |
| 830 | Text segment size = 0x0000050c bytes\r | |
| 831 | Data segment size = 0x000462c0 bytes\r | |
| 832 | BSS Segment size = 0x00000428 bytes\r | |
| 833 | Symbol Table size = 0x000012a6 bytes\r | |
| 834 | Absolute Address for text segment = 0x00802000\r | |
| 835 | Absolute Address for data segment = 0x0080250c\r | |
| 836 | Absolute Address for BSS segment = 0x00004000\r | |
| 837 | \r | |
| 838 | (CRZDEMO.ABS):\r | |
| 839 | 000000 01 50 00 03 00 00 00 00 00 03 83 10 00 00 05 3b\r | |
| 840 | 000010 00 1c 00 03 00 00 01 07 00 00 1d d0 00 03 64 98\r | |
| 841 | 000020 00 06 8b 80 00 80 20 00 00 80 20 00 00 80 3d d0\r | |
| 842 | \r | |
| 843 | 000030 2e 74 78 74 00 00 00 00 00 80 20 00 00 80 20 00 .txt (+36 bytes)\r | |
| 844 | 000040 00 00 1d d0 00 00 00 a8 00 00 00 00 00 00 00 00\r | |
| 845 | 000050 00 00 00 00 00 00 00 20\r | |
| 846 | 000058 2e 64 74 61 00 00 00 00 00 80 3d d0 00 80 3d d0 .dta (+36 bytes)\r | |
| 847 | 000068 00 03 64 98 00 00 1e 78 00 00 00 00 00 00 00 00\r | |
| 848 | 000078 00 00 00 00 00 00 00 40\r | |
| 849 | 000080 2e 62 73 73 00 00 00 00 00 00 50 00 00 00 50 00 .bss (+36 bytes)\r | |
| 850 | 000090 00 06 8b 80 00 03 83 10 00 00 00 00 00 00 00 00\r | |
| 851 | 0000a0 00 00 00 00 00 00 00 80\r | |
| 852 | \r | |
| 853 | Header size is $A8 bytes...\r | |
| 854 | \r | |
| 855 | BSD/COFF format file detected...\r | |
| 856 | 3 sections specified\r | |
| 857 | Symbol Table offset = 230160 ($00038310)\r | |
| 858 | Symbol Table contains 1339 symbol entries ($0000053B)\r | |
| 859 | The additional header size is 28 bytes ($001C)\r | |
| 860 | Magic Number for RUN_HDR = 0x00000107\r | |
| 861 | Text Segment Size = 7632 ($00001DD0)\r | |
| 862 | Data Segment Size = 222360 ($00036498)\r | |
| 863 | BSS Segment Size = 428928 ($00068B80)\r | |
| 864 | Starting Address for executable = 0x00802000\r | |
| 865 | Start of Text Segment = 0x00802000\r | |
| 866 | Start of Data Segment = 0x00803dd0\r | |
| 867 | */\r | |
| 868 | #endif\r |