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