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949f388f | 1 | /*++ @file |
2 | ||
3 | Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR> | |
4 | Portions copyright (c) 2008 - 2011, Apple Inc. All rights reserved.<BR> | |
5 | This program and the accompanying materials | |
6 | are licensed and made available under the terms and conditions of the BSD License | |
7 | which accompanies this distribution. The full text of the license may be found at | |
8 | http://opensource.org/licenses/bsd-license.php | |
9 | ||
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. | |
12 | ||
13 | **/ | |
14 | ||
15 | #include "SecMain.h" | |
16 | ||
17 | #ifdef __APPLE__ | |
18 | #define MAP_ANONYMOUS MAP_ANON | |
19 | char *gGdbWorkingFileName = NULL; | |
20 | #endif | |
21 | ||
22 | ||
23 | // | |
24 | // Globals | |
25 | // | |
26 | ||
27 | EMU_THUNK_PPI mSecEmuThunkPpi = { | |
28 | GasketSecUnixPeiAutoScan, | |
29 | GasketSecUnixFdAddress, | |
65e3f333 | 30 | GasketSecEmuThunkAddress |
949f388f | 31 | }; |
32 | ||
949f388f | 33 | |
34 | ||
35 | ||
36 | // | |
37 | // Default information about where the FD is located. | |
38 | // This array gets filled in with information from EFI_FIRMWARE_VOLUMES | |
39 | // EFI_FIRMWARE_VOLUMES is a host environment variable set by system.cmd. | |
40 | // The number of array elements is allocated base on parsing | |
41 | // EFI_FIRMWARE_VOLUMES and the memory is never freed. | |
42 | // | |
65e3f333 | 43 | UINTN gFdInfoCount = 0; |
44 | EMU_FD_INFO *gFdInfo; | |
949f388f | 45 | |
46 | // | |
47 | // Array that supports seperate memory rantes. | |
48 | // The memory ranges are set in system.cmd via the EFI_MEMORY_SIZE variable. | |
49 | // The number of array elements is allocated base on parsing | |
50 | // EFI_MEMORY_SIZE and the memory is never freed. | |
51 | // | |
65e3f333 | 52 | UINTN gSystemMemoryCount = 0; |
53 | EMU_SYSTEM_MEMORY *gSystemMemory; | |
949f388f | 54 | |
55 | ||
56 | ||
57 | UINTN mImageContextModHandleArraySize = 0; | |
58 | IMAGE_CONTEXT_TO_MOD_HANDLE *mImageContextModHandleArray = NULL; | |
59 | ||
946bfba2 | 60 | EFI_PEI_PPI_DESCRIPTOR *gPpiList; |
949f388f | 61 | |
949f388f | 62 | /*++ |
63 | ||
64 | Routine Description: | |
65 | Main entry point to SEC for Unix. This is a unix program | |
66 | ||
67 | Arguments: | |
68 | Argc - Number of command line arguments | |
69 | Argv - Array of command line argument strings | |
70 | Envp - Array of environmemt variable strings | |
71 | ||
72 | Returns: | |
73 | 0 - Normal exit | |
74 | 1 - Abnormal exit | |
75 | ||
76 | **/ | |
65e3f333 | 77 | int |
78 | main ( | |
79 | IN int Argc, | |
80 | IN char **Argv, | |
81 | IN char **Envp | |
82 | ) | |
949f388f | 83 | { |
84 | EFI_STATUS Status; | |
85 | EFI_PHYSICAL_ADDRESS InitialStackMemory; | |
86 | UINT64 InitialStackMemorySize; | |
87 | UINTN Index; | |
88 | UINTN Index1; | |
89 | UINTN Index2; | |
90 | UINTN PeiIndex; | |
91 | CHAR8 *FileName; | |
92 | BOOLEAN Done; | |
65e3f333 | 93 | EFI_PEI_FILE_HANDLE FileHandle; |
94 | VOID *SecFile; | |
949f388f | 95 | CHAR16 *MemorySizeStr; |
96 | CHAR16 *FirmwareVolumesStr; | |
97 | UINTN *StackPointer; | |
98 | ||
65e3f333 | 99 | setbuf (stdout, 0); |
100 | setbuf (stderr, 0); | |
949f388f | 101 | |
102 | MemorySizeStr = (CHAR16 *) PcdGetPtr (PcdEmuMemorySize); | |
103 | FirmwareVolumesStr = (CHAR16 *) PcdGetPtr (PcdEmuFirmwareVolume); | |
104 | ||
65e3f333 | 105 | printf ("\nEDK II UNIX Emulation Environment from edk2.sourceforge.net\n"); |
949f388f | 106 | |
107 | // | |
108 | // PPIs pased into PEI_CORE | |
109 | // | |
949f388f | 110 | AddThunkPpi (EFI_PEI_PPI_DESCRIPTOR_PPI, &gEmuThunkPpiGuid, &mSecEmuThunkPpi); |
949f388f | 111 | |
112 | SecInitThunkProtocol (); | |
113 | ||
114 | // | |
115 | // Emulator Bus Driver Thunks | |
116 | // | |
117 | AddThunkProtocol (&gX11ThunkIo, (CHAR16 *)PcdGetPtr (PcdEmuGop), TRUE); | |
118 | AddThunkProtocol (&gPosixFileSystemThunkIo, (CHAR16 *)PcdGetPtr (PcdEmuFileSystem), TRUE); | |
033d0e5f | 119 | AddThunkProtocol (&gBlockIoThunkIo, (CHAR16 *)PcdGetPtr (PcdEmuVirtualDisk), TRUE); |
2b59fcd5 | 120 | AddThunkProtocol (&gSnpThunkIo, (CHAR16 *)PcdGetPtr (PcdEmuNetworkInterface), TRUE); |
033d0e5f | 121 | |
949f388f | 122 | // |
123 | // Emulator other Thunks | |
124 | // | |
125 | AddThunkProtocol (&gPthreadThunkIo, (CHAR16 *)PcdGetPtr (PcdEmuApCount), FALSE); | |
126 | ||
127 | // EmuSecLibConstructor (); | |
65e3f333 | 128 | |
65e3f333 | 129 | gPpiList = GetThunkPpiList (); |
130 | ||
949f388f | 131 | |
132 | #ifdef __APPLE__ | |
133 | // | |
134 | // We can't use dlopen on OS X, so we need a scheme to get symboles into gdb | |
135 | // We need to create a temp file that contains gdb commands so we can load | |
136 | // symbols when we load every PE/COFF image. | |
137 | // | |
138 | Index = strlen (*Argv); | |
b8800fc5 | 139 | gGdbWorkingFileName = AllocatePool (Index + strlen(".gdb") + 1); |
949f388f | 140 | strcpy (gGdbWorkingFileName, *Argv); |
141 | strcat (gGdbWorkingFileName, ".gdb"); | |
142 | #endif | |
143 | ||
144 | ||
145 | // | |
146 | // Allocate space for gSystemMemory Array | |
147 | // | |
148 | gSystemMemoryCount = CountSeperatorsInString (MemorySizeStr, '!') + 1; | |
b8800fc5 | 149 | gSystemMemory = AllocateZeroPool (gSystemMemoryCount * sizeof (EMU_SYSTEM_MEMORY)); |
949f388f | 150 | if (gSystemMemory == NULL) { |
151 | printf ("ERROR : Can not allocate memory for system. Exiting.\n"); | |
152 | exit (1); | |
153 | } | |
154 | // | |
155 | // Allocate space for gSystemMemory Array | |
156 | // | |
157 | gFdInfoCount = CountSeperatorsInString (FirmwareVolumesStr, '!') + 1; | |
b8800fc5 | 158 | gFdInfo = AllocateZeroPool (gFdInfoCount * sizeof (EMU_FD_INFO)); |
949f388f | 159 | if (gFdInfo == NULL) { |
160 | printf ("ERROR : Can not allocate memory for fd info. Exiting.\n"); | |
161 | exit (1); | |
162 | } | |
163 | ||
164 | printf (" BootMode 0x%02x\n", (unsigned int)PcdGet32 (PcdEmuBootMode)); | |
165 | ||
166 | // | |
65e3f333 | 167 | // Open up a 128K file to emulate temp memory for SEC. |
949f388f | 168 | // on a real platform this would be SRAM, or using the cache as RAM. |
169 | // Set InitialStackMemory to zero so UnixOpenFile will allocate a new mapping | |
170 | // | |
171 | InitialStackMemorySize = STACK_SIZE; | |
65e3f333 | 172 | InitialStackMemory = (UINTN)MapMemory ( |
173 | 0, (UINT32) InitialStackMemorySize, | |
174 | PROT_READ | PROT_WRITE | PROT_EXEC, MAP_ANONYMOUS | MAP_PRIVATE | |
175 | ); | |
949f388f | 176 | if (InitialStackMemory == 0) { |
177 | printf ("ERROR : Can not open SecStack Exiting\n"); | |
178 | exit (1); | |
179 | } | |
180 | ||
65e3f333 | 181 | printf (" OS Emulator passing in %u KB of temp RAM at 0x%08lx to SEC\n", |
949f388f | 182 | (unsigned int)(InitialStackMemorySize / 1024), |
65e3f333 | 183 | (unsigned long)InitialStackMemory |
184 | ); | |
949f388f | 185 | |
186 | for (StackPointer = (UINTN*) (UINTN) InitialStackMemory; | |
187 | StackPointer < (UINTN*)(UINTN)((UINTN) InitialStackMemory + (UINT64) InitialStackMemorySize); | |
188 | StackPointer ++) { | |
189 | *StackPointer = 0x5AA55AA5; | |
190 | } | |
191 | ||
192 | // | |
193 | // Open All the firmware volumes and remember the info in the gFdInfo global | |
194 | // | |
b8800fc5 | 195 | FileName = (CHAR8 *) AllocatePool (StrLen (FirmwareVolumesStr) + 1); |
949f388f | 196 | if (FileName == NULL) { |
197 | printf ("ERROR : Can not allocate memory for firmware volume string\n"); | |
198 | exit (1); | |
199 | } | |
200 | ||
201 | Index2 = 0; | |
65e3f333 | 202 | for (Done = FALSE, Index = 0, PeiIndex = 0, SecFile = NULL; |
949f388f | 203 | FirmwareVolumesStr[Index2] != 0; |
204 | Index++) { | |
65e3f333 | 205 | for (Index1 = 0; (FirmwareVolumesStr[Index2] != '!') && (FirmwareVolumesStr[Index2] != 0); Index2++) { |
949f388f | 206 | FileName[Index1++] = FirmwareVolumesStr[Index2]; |
65e3f333 | 207 | } |
208 | if (FirmwareVolumesStr[Index2] == '!') { | |
949f388f | 209 | Index2++; |
65e3f333 | 210 | } |
949f388f | 211 | FileName[Index1] = '\0'; |
212 | ||
8052c4a2 | 213 | if (Index == 0) { |
214 | // Map FV Recovery Read Only and other areas Read/Write | |
215 | Status = MapFd0 ( | |
216 | FileName, | |
217 | &gFdInfo[0].Address, | |
218 | &gFdInfo[0].Size | |
219 | ); | |
220 | } else { | |
221 | // | |
222 | // Open the FD and remmeber where it got mapped into our processes address space | |
223 | // Maps Read Only | |
224 | // | |
225 | Status = MapFile ( | |
226 | FileName, | |
227 | &gFdInfo[Index].Address, | |
228 | &gFdInfo[Index].Size | |
229 | ); | |
230 | } | |
949f388f | 231 | if (EFI_ERROR (Status)) { |
232 | printf ("ERROR : Can not open Firmware Device File %s (%x). Exiting.\n", FileName, (unsigned int)Status); | |
233 | exit (1); | |
234 | } | |
235 | ||
65e3f333 | 236 | printf (" FD loaded from %s at 0x%08lx",FileName, (unsigned long)gFdInfo[Index].Address); |
949f388f | 237 | |
65e3f333 | 238 | if (SecFile == NULL) { |
949f388f | 239 | // |
65e3f333 | 240 | // Assume the beginning of the FD is an FV and look for the SEC Core. |
949f388f | 241 | // Load the first one we find. |
242 | // | |
65e3f333 | 243 | FileHandle = NULL; |
244 | Status = PeiServicesFfsFindNextFile ( | |
245 | EFI_FV_FILETYPE_SECURITY_CORE, | |
246 | (EFI_PEI_FV_HANDLE)(UINTN)gFdInfo[Index].Address, | |
247 | &FileHandle | |
248 | ); | |
949f388f | 249 | if (!EFI_ERROR (Status)) { |
65e3f333 | 250 | Status = PeiServicesFfsFindSectionData (EFI_SECTION_PE32, FileHandle, &SecFile); |
251 | if (!EFI_ERROR (Status)) { | |
252 | PeiIndex = Index; | |
253 | printf (" contains SEC Core"); | |
254 | } | |
949f388f | 255 | } |
256 | } | |
257 | ||
258 | printf ("\n"); | |
259 | } | |
260 | // | |
261 | // Calculate memory regions and store the information in the gSystemMemory | |
262 | // global for later use. The autosizing code will use this data to | |
263 | // map this memory into the SEC process memory space. | |
264 | // | |
265 | Index1 = 0; | |
266 | Index = 0; | |
267 | while (1) { | |
268 | UINTN val = 0; | |
269 | // | |
270 | // Save the size of the memory. | |
271 | // | |
272 | while (MemorySizeStr[Index1] >= '0' && MemorySizeStr[Index1] <= '9') { | |
273 | val = val * 10 + MemorySizeStr[Index1] - '0'; | |
274 | Index1++; | |
275 | } | |
276 | gSystemMemory[Index++].Size = val * 0x100000; | |
65e3f333 | 277 | if (MemorySizeStr[Index1] == 0) { |
949f388f | 278 | break; |
65e3f333 | 279 | } |
949f388f | 280 | Index1++; |
281 | } | |
282 | ||
283 | printf ("\n"); | |
284 | ||
285 | // | |
65e3f333 | 286 | // Hand off to SEC |
949f388f | 287 | // |
65e3f333 | 288 | SecLoadFromCore ((UINTN) InitialStackMemory, (UINTN) InitialStackMemorySize, (UINTN) gFdInfo[0].Address, SecFile); |
949f388f | 289 | |
290 | // | |
65e3f333 | 291 | // If we get here, then the SEC Core returned. This is an error as SEC should |
292 | // always hand off to PEI Core and then on to DXE Core. | |
949f388f | 293 | // |
65e3f333 | 294 | printf ("ERROR : SEC returned\n"); |
949f388f | 295 | exit (1); |
296 | } | |
297 | ||
65e3f333 | 298 | |
949f388f | 299 | EFI_PHYSICAL_ADDRESS * |
300 | MapMemory ( | |
bfa084fa | 301 | IN INTN fd, |
302 | IN UINT64 length, | |
303 | IN INTN prot, | |
304 | IN INTN flags | |
305 | ) | |
949f388f | 306 | { |
307 | STATIC UINTN base = 0x40000000; | |
308 | CONST UINTN align = (1 << 24); | |
309 | VOID *res = NULL; | |
310 | BOOLEAN isAligned = 0; | |
311 | ||
312 | // | |
313 | // Try to get an aligned block somewhere in the address space of this | |
314 | // process. | |
315 | // | |
316 | while((!isAligned) && (base != 0)) { | |
317 | res = mmap ((void *)base, length, prot, flags, fd, 0); | |
318 | if (res == MAP_FAILED) { | |
319 | return NULL; | |
320 | } | |
321 | if ((((UINTN)res) & ~(align-1)) == (UINTN)res) { | |
322 | isAligned=1; | |
65e3f333 | 323 | } else { |
949f388f | 324 | munmap(res, length); |
325 | base += align; | |
326 | } | |
327 | } | |
328 | return res; | |
329 | } | |
330 | ||
65e3f333 | 331 | |
949f388f | 332 | /*++ |
333 | ||
334 | Routine Description: | |
335 | Opens and memory maps a file using Unix services. If BaseAddress is non zero | |
336 | the process will try and allocate the memory starting at BaseAddress. | |
337 | ||
338 | Arguments: | |
339 | FileName - The name of the file to open and map | |
340 | MapSize - The amount of the file to map in bytes | |
341 | CreationDisposition - The flags to pass to CreateFile(). Use to create new files for | |
342 | memory emulation, and exiting files for firmware volume emulation | |
343 | BaseAddress - The base address of the mapped file in the user address space. | |
344 | If passed in as NULL the a new memory region is used. | |
345 | If passed in as non NULL the request memory region is used for | |
346 | the mapping of the file into the process space. | |
347 | Length - The size of the mapped region in bytes | |
348 | ||
349 | Returns: | |
350 | EFI_SUCCESS - The file was opened and mapped. | |
351 | EFI_NOT_FOUND - FileName was not found in the current directory | |
352 | EFI_DEVICE_ERROR - An error occured attempting to map the opened file | |
353 | ||
354 | **/ | |
65e3f333 | 355 | EFI_STATUS |
356 | MapFile ( | |
357 | IN CHAR8 *FileName, | |
358 | IN OUT EFI_PHYSICAL_ADDRESS *BaseAddress, | |
359 | OUT UINT64 *Length | |
360 | ) | |
949f388f | 361 | { |
8052c4a2 | 362 | int fd; |
949f388f | 363 | VOID *res; |
364 | UINTN FileSize; | |
365 | ||
7e284acb | 366 | fd = open (FileName, O_RDWR); |
65e3f333 | 367 | if (fd < 0) { |
949f388f | 368 | return EFI_NOT_FOUND; |
65e3f333 | 369 | } |
949f388f | 370 | FileSize = lseek (fd, 0, SEEK_END); |
371 | ||
372 | ||
946bfba2 | 373 | res = MapMemory (fd, FileSize, PROT_READ | PROT_EXEC, MAP_PRIVATE); |
949f388f | 374 | |
375 | close (fd); | |
376 | ||
7e284acb | 377 | if (res == NULL) { |
378 | perror ("MapFile() Failed"); | |
949f388f | 379 | return EFI_DEVICE_ERROR; |
65e3f333 | 380 | } |
8052c4a2 | 381 | |
949f388f | 382 | *Length = (UINT64) FileSize; |
383 | *BaseAddress = (EFI_PHYSICAL_ADDRESS) (UINTN) res; | |
384 | ||
385 | return EFI_SUCCESS; | |
386 | } | |
387 | ||
8052c4a2 | 388 | EFI_STATUS |
389 | MapFd0 ( | |
390 | IN CHAR8 *FileName, | |
391 | IN OUT EFI_PHYSICAL_ADDRESS *BaseAddress, | |
392 | OUT UINT64 *Length | |
393 | ) | |
394 | { | |
395 | int fd; | |
946bfba2 | 396 | void *res, *res2, *res3; |
8052c4a2 | 397 | UINTN FileSize; |
398 | UINTN FvSize; | |
946bfba2 | 399 | void *EmuMagicPage; |
8052c4a2 | 400 | |
401 | fd = open (FileName, O_RDWR); | |
402 | if (fd < 0) { | |
403 | return EFI_NOT_FOUND; | |
404 | } | |
405 | FileSize = lseek (fd, 0, SEEK_END); | |
406 | ||
407 | FvSize = FixedPcdGet64 (PcdEmuFlashFvRecoverySize); | |
408 | ||
409 | // Assume start of FD is Recovery FV, and make it write protected | |
410 | res = mmap ( | |
411 | (void *)(UINTN)FixedPcdGet64 (PcdEmuFlashFvRecoveryBase), | |
412 | FvSize, | |
946bfba2 | 413 | PROT_READ | PROT_EXEC, |
8052c4a2 | 414 | MAP_PRIVATE, |
415 | fd, | |
416 | 0 | |
417 | ); | |
418 | if (res == MAP_FAILED) { | |
946bfba2 | 419 | perror ("MapFd0() Failed res ="); |
8052c4a2 | 420 | close (fd); |
421 | return EFI_DEVICE_ERROR; | |
946bfba2 | 422 | } else if (res != (void *)(UINTN)FixedPcdGet64 (PcdEmuFlashFvRecoveryBase)) { |
423 | // We could not load at the build address, so we need to allow writes | |
424 | munmap (res, FvSize); | |
425 | res = mmap ( | |
426 | (void *)(UINTN)FixedPcdGet64 (PcdEmuFlashFvRecoveryBase), | |
427 | FvSize, | |
428 | PROT_READ | PROT_WRITE | PROT_EXEC, | |
429 | MAP_PRIVATE, | |
430 | fd, | |
431 | 0 | |
432 | ); | |
433 | if (res == MAP_FAILED) { | |
434 | perror ("MapFd0() Failed res ="); | |
435 | close (fd); | |
436 | return EFI_DEVICE_ERROR; | |
437 | } | |
8052c4a2 | 438 | } |
439 | ||
440 | // Map the rest of the FD as read/write | |
441 | res2 = mmap ( | |
112a857f | 442 | (void *)(UINTN)(FixedPcdGet64 (PcdEmuFlashFvRecoveryBase) + FvSize), |
8052c4a2 | 443 | FileSize - FvSize, |
444 | PROT_READ | PROT_WRITE | PROT_EXEC, | |
445 | MAP_SHARED, | |
446 | fd, | |
447 | FvSize | |
448 | ); | |
449 | close (fd); | |
450 | if (res2 == MAP_FAILED) { | |
946bfba2 | 451 | perror ("MapFd0() Failed res2 ="); |
8052c4a2 | 452 | return EFI_DEVICE_ERROR; |
453 | } | |
454 | ||
946bfba2 | 455 | // |
456 | // If enabled use the magic page to communicate between modules | |
457 | // This replaces the PI PeiServicesTable pointer mechanism that | |
458 | // deos not work in the emulator. It also allows the removal of | |
459 | // writable globals from SEC, PEI_CORE (libraries), PEIMs | |
460 | // | |
461 | EmuMagicPage = (void *)(UINTN)FixedPcdGet64 (PcdPeiServicesTablePage); | |
462 | if (EmuMagicPage != NULL) { | |
463 | res3 = mmap ( | |
464 | (void *)EmuMagicPage, | |
465 | 4096, | |
466 | PROT_READ | PROT_WRITE, | |
467 | MAP_PRIVATE | MAP_ANONYMOUS, | |
468 | 0, | |
469 | 0 | |
470 | ); | |
471 | if (res3 != EmuMagicPage) { | |
472 | printf ("MapFd0(): Could not allocate PeiServicesTablePage @ %lx\n", (long unsigned int)EmuMagicPage); | |
473 | return EFI_DEVICE_ERROR; | |
474 | } | |
475 | } | |
476 | ||
8052c4a2 | 477 | *Length = (UINT64) FileSize; |
478 | *BaseAddress = (EFI_PHYSICAL_ADDRESS) (UINTN) res; | |
479 | ||
480 | return EFI_SUCCESS; | |
481 | } | |
949f388f | 482 | |
483 | ||
949f388f | 484 | /*++ |
485 | ||
486 | Routine Description: | |
65e3f333 | 487 | This is the service to load the SEC Core from the Firmware Volume |
949f388f | 488 | |
489 | Arguments: | |
65e3f333 | 490 | LargestRegion - Memory to use for SEC. |
949f388f | 491 | LargestRegionSize - Size of Memory to use for PEI |
492 | BootFirmwareVolumeBase - Start of the Boot FV | |
65e3f333 | 493 | PeiCorePe32File - SEC PE32 |
949f388f | 494 | |
495 | Returns: | |
496 | Success means control is transfered and thus we should never return | |
497 | ||
498 | **/ | |
65e3f333 | 499 | VOID |
500 | SecLoadFromCore ( | |
501 | IN UINTN LargestRegion, | |
502 | IN UINTN LargestRegionSize, | |
503 | IN UINTN BootFirmwareVolumeBase, | |
504 | IN VOID *PeiCorePe32File | |
505 | ) | |
949f388f | 506 | { |
507 | EFI_STATUS Status; | |
508 | EFI_PHYSICAL_ADDRESS TopOfMemory; | |
509 | VOID *TopOfStack; | |
949f388f | 510 | EFI_PHYSICAL_ADDRESS PeiCoreEntryPoint; |
949f388f | 511 | EFI_SEC_PEI_HAND_OFF *SecCoreData; |
512 | UINTN PeiStackSize; | |
513 | ||
514 | // | |
515 | // Compute Top Of Memory for Stack and PEI Core Allocations | |
516 | // | |
517 | TopOfMemory = LargestRegion + LargestRegionSize; | |
518 | PeiStackSize = (UINTN)RShiftU64((UINT64)STACK_SIZE,1); | |
519 | ||
520 | // | |
521 | // |-----------| <---- TemporaryRamBase + TemporaryRamSize | |
522 | // | Heap | | |
523 | // | | | |
524 | // |-----------| <---- StackBase / PeiTemporaryMemoryBase | |
525 | // | | | |
526 | // | Stack | | |
527 | // |-----------| <---- TemporaryRamBase | |
528 | // | |
529 | TopOfStack = (VOID *)(LargestRegion + PeiStackSize); | |
530 | TopOfMemory = LargestRegion + PeiStackSize; | |
531 | ||
532 | // | |
533 | // Reservet space for storing PeiCore's parament in stack. | |
534 | // | |
535 | TopOfStack = (VOID *)((UINTN)TopOfStack - sizeof (EFI_SEC_PEI_HAND_OFF) - CPU_STACK_ALIGNMENT); | |
536 | TopOfStack = ALIGN_POINTER (TopOfStack, CPU_STACK_ALIGNMENT); | |
537 | ||
538 | ||
539 | // | |
540 | // Bind this information into the SEC hand-off state | |
541 | // | |
65e3f333 | 542 | SecCoreData = (EFI_SEC_PEI_HAND_OFF*)(UINTN) TopOfStack; |
949f388f | 543 | SecCoreData->DataSize = sizeof(EFI_SEC_PEI_HAND_OFF); |
544 | SecCoreData->BootFirmwareVolumeBase = (VOID*)BootFirmwareVolumeBase; | |
545 | SecCoreData->BootFirmwareVolumeSize = PcdGet32 (PcdEmuFirmwareFdSize); | |
546 | SecCoreData->TemporaryRamBase = (VOID*)(UINTN)LargestRegion; | |
547 | SecCoreData->TemporaryRamSize = STACK_SIZE; | |
548 | SecCoreData->StackBase = SecCoreData->TemporaryRamBase; | |
549 | SecCoreData->StackSize = PeiStackSize; | |
550 | SecCoreData->PeiTemporaryRamBase = (VOID*) ((UINTN) SecCoreData->TemporaryRamBase + PeiStackSize); | |
551 | SecCoreData->PeiTemporaryRamSize = STACK_SIZE - PeiStackSize; | |
552 | ||
553 | // | |
65e3f333 | 554 | // Find the SEC Core Entry Point |
949f388f | 555 | // |
65e3f333 | 556 | Status = SecPeCoffGetEntryPoint (PeiCorePe32File, (VOID **)&PeiCoreEntryPoint); |
949f388f | 557 | if (EFI_ERROR (Status)) { |
558 | return ; | |
559 | } | |
560 | ||
561 | // | |
65e3f333 | 562 | // Transfer control to the SEC Core |
949f388f | 563 | // |
564 | PeiSwitchStacks ( | |
565 | (SWITCH_STACK_ENTRY_POINT) (UINTN) PeiCoreEntryPoint, | |
566 | SecCoreData, | |
65e3f333 | 567 | (VOID *)gPpiList, |
949f388f | 568 | TopOfStack |
569 | ); | |
570 | // | |
65e3f333 | 571 | // If we get here, then the SEC Core returned. This is an error |
949f388f | 572 | // |
573 | return ; | |
574 | } | |
575 | ||
65e3f333 | 576 | |
949f388f | 577 | /*++ |
578 | ||
579 | Routine Description: | |
580 | This service is called from Index == 0 until it returns EFI_UNSUPPORTED. | |
581 | It allows discontiguous memory regions to be supported by the emulator. | |
582 | It uses gSystemMemory[] and gSystemMemoryCount that were created by | |
583 | parsing the host environment variable EFI_MEMORY_SIZE. | |
584 | The size comes from the varaible and the address comes from the call to | |
585 | UnixOpenFile. | |
586 | ||
587 | Arguments: | |
588 | Index - Which memory region to use | |
589 | MemoryBase - Return Base address of memory region | |
590 | MemorySize - Return size in bytes of the memory region | |
591 | ||
592 | Returns: | |
593 | EFI_SUCCESS - If memory region was mapped | |
594 | EFI_UNSUPPORTED - If Index is not supported | |
595 | ||
596 | **/ | |
65e3f333 | 597 | EFI_STATUS |
65e3f333 | 598 | SecUnixPeiAutoScan ( |
599 | IN UINTN Index, | |
600 | OUT EFI_PHYSICAL_ADDRESS *MemoryBase, | |
601 | OUT UINT64 *MemorySize | |
602 | ) | |
949f388f | 603 | { |
604 | void *res; | |
605 | ||
606 | if (Index >= gSystemMemoryCount) { | |
607 | return EFI_UNSUPPORTED; | |
608 | } | |
609 | ||
610 | *MemoryBase = 0; | |
65e3f333 | 611 | res = MapMemory ( |
612 | 0, gSystemMemory[Index].Size, | |
613 | PROT_READ | PROT_WRITE | PROT_EXEC, | |
614 | MAP_PRIVATE | MAP_ANONYMOUS | |
615 | ); | |
616 | if (res == MAP_FAILED) { | |
949f388f | 617 | return EFI_DEVICE_ERROR; |
65e3f333 | 618 | } |
949f388f | 619 | *MemorySize = gSystemMemory[Index].Size; |
620 | *MemoryBase = (UINTN)res; | |
621 | gSystemMemory[Index].Memory = *MemoryBase; | |
622 | ||
623 | return EFI_SUCCESS; | |
624 | } | |
625 | ||
65e3f333 | 626 | |
1d7ac5a6 | 627 | /*++ |
628 | ||
629 | Routine Description: | |
630 | Check to see if an address range is in the EFI GCD memory map. | |
631 | ||
632 | This is all of GCD for system memory passed to DXE Core. FV | |
633 | mapping and other device mapped into system memory are not | |
634 | inlcuded in the check. | |
635 | ||
636 | Arguments: | |
637 | Index - Which memory region to use | |
638 | MemoryBase - Return Base address of memory region | |
639 | MemorySize - Return size in bytes of the memory region | |
640 | ||
641 | Returns: | |
642 | TRUE - Address is in the EFI GCD memory map | |
643 | FALSE - Address is NOT in memory map | |
644 | ||
645 | **/ | |
646 | BOOLEAN | |
647 | EfiSystemMemoryRange ( | |
648 | IN VOID *MemoryAddress | |
649 | ) | |
650 | { | |
651 | UINTN Index; | |
652 | EFI_PHYSICAL_ADDRESS MemoryBase; | |
653 | ||
654 | MemoryBase = (EFI_PHYSICAL_ADDRESS)(UINTN)MemoryAddress; | |
655 | for (Index = 0; Index < gSystemMemoryCount; Index++) { | |
656 | if ((MemoryBase >= gSystemMemory[Index].Memory) && | |
657 | (MemoryBase < (gSystemMemory[Index].Memory + gSystemMemory[Index].Size)) ) { | |
658 | return TRUE; | |
659 | } | |
660 | } | |
661 | ||
662 | return FALSE; | |
663 | } | |
664 | ||
665 | ||
949f388f | 666 | /*++ |
667 | ||
668 | Routine Description: | |
669 | Since the SEC is the only Unix program in stack it must export | |
670 | an interface to do POSIX calls. gUnix is initailized in UnixThunk.c. | |
671 | ||
672 | Arguments: | |
673 | InterfaceSize - sizeof (EFI_WIN_NT_THUNK_PROTOCOL); | |
674 | InterfaceBase - Address of the gUnix global | |
675 | ||
676 | Returns: | |
677 | EFI_SUCCESS - Data returned | |
678 | ||
679 | **/ | |
65e3f333 | 680 | VOID * |
65e3f333 | 681 | SecEmuThunkAddress ( |
682 | VOID | |
683 | ) | |
949f388f | 684 | { |
685 | return &gEmuThunkProtocol; | |
686 | } | |
687 | ||
688 | ||
949f388f | 689 | |
690 | RETURN_STATUS | |
691 | EFIAPI | |
692 | SecPeCoffGetEntryPoint ( | |
693 | IN VOID *Pe32Data, | |
694 | IN OUT VOID **EntryPoint | |
695 | ) | |
696 | { | |
65e3f333 | 697 | EFI_STATUS Status; |
698 | PE_COFF_LOADER_IMAGE_CONTEXT ImageContext; | |
0ede3853 | 699 | |
700 | ZeroMem (&ImageContext, sizeof (ImageContext)); | |
701 | ImageContext.Handle = Pe32Data; | |
702 | ImageContext.ImageRead = (PE_COFF_LOADER_READ_FILE) SecImageRead; | |
703 | ||
704 | Status = PeCoffLoaderGetImageInfo (&ImageContext); | |
705 | if (EFI_ERROR (Status)) { | |
706 | return Status; | |
707 | } | |
708 | ||
946bfba2 | 709 | if (ImageContext.ImageAddress != (UINTN)Pe32Data) { |
e7523e06 | 710 | // |
711 | // Relocate image to match the address where it resides | |
712 | // | |
713 | ImageContext.ImageAddress = (UINTN)Pe32Data; | |
714 | Status = PeCoffLoaderLoadImage (&ImageContext); | |
715 | if (EFI_ERROR (Status)) { | |
716 | return Status; | |
717 | } | |
949f388f | 718 | |
e7523e06 | 719 | Status = PeCoffLoaderRelocateImage (&ImageContext); |
720 | if (EFI_ERROR (Status)) { | |
721 | return Status; | |
722 | } | |
946bfba2 | 723 | } else { |
724 | // | |
725 | // Or just return image entry point | |
726 | // | |
727 | ImageContext.PdbPointer = PeCoffLoaderGetPdbPointer (Pe32Data); | |
728 | Status = PeCoffLoaderGetEntryPoint (Pe32Data, EntryPoint); | |
729 | if (EFI_ERROR (Status)) { | |
730 | return Status; | |
731 | } | |
732 | ImageContext.EntryPoint = (UINTN)*EntryPoint; | |
733 | } | |
949f388f | 734 | |
65e3f333 | 735 | // On Unix a dlopen is done that will change the entry point |
736 | SecPeCoffRelocateImageExtraAction (&ImageContext); | |
737 | *EntryPoint = (VOID *)(UINTN)ImageContext.EntryPoint; | |
738 | ||
949f388f | 739 | return Status; |
740 | } | |
741 | ||
742 | ||
743 | ||
949f388f | 744 | /*++ |
745 | ||
746 | Routine Description: | |
747 | Return the FD Size and base address. Since the FD is loaded from a | |
748 | file into host memory only the SEC will know it's address. | |
749 | ||
750 | Arguments: | |
751 | Index - Which FD, starts at zero. | |
752 | FdSize - Size of the FD in bytes | |
753 | FdBase - Start address of the FD. Assume it points to an FV Header | |
754 | FixUp - Difference between actual FD address and build address | |
755 | ||
756 | Returns: | |
757 | EFI_SUCCESS - Return the Base address and size of the FV | |
758 | EFI_UNSUPPORTED - Index does nto map to an FD in the system | |
759 | ||
760 | **/ | |
65e3f333 | 761 | EFI_STATUS |
65e3f333 | 762 | SecUnixFdAddress ( |
763 | IN UINTN Index, | |
764 | IN OUT EFI_PHYSICAL_ADDRESS *FdBase, | |
765 | IN OUT UINT64 *FdSize, | |
766 | IN OUT EFI_PHYSICAL_ADDRESS *FixUp | |
767 | ) | |
949f388f | 768 | { |
769 | if (Index >= gFdInfoCount) { | |
770 | return EFI_UNSUPPORTED; | |
771 | } | |
772 | ||
773 | *FdBase = gFdInfo[Index].Address; | |
774 | *FdSize = gFdInfo[Index].Size; | |
775 | *FixUp = 0; | |
776 | ||
777 | if (*FdBase == 0 && *FdSize == 0) { | |
778 | return EFI_UNSUPPORTED; | |
779 | } | |
780 | ||
781 | if (Index == 0) { | |
782 | // | |
783 | // FD 0 has XIP code and well known PCD values | |
784 | // If the memory buffer could not be allocated at the FD build address | |
785 | // the Fixup is the difference. | |
786 | // | |
787 | *FixUp = *FdBase - PcdGet64 (PcdEmuFdBaseAddress); | |
788 | } | |
789 | ||
790 | return EFI_SUCCESS; | |
791 | } | |
792 | ||
949f388f | 793 | |
949f388f | 794 | /*++ |
795 | ||
796 | Routine Description: | |
797 | Count the number of seperators in String | |
798 | ||
799 | Arguments: | |
800 | String - String to process | |
801 | Seperator - Item to count | |
802 | ||
803 | Returns: | |
804 | Number of Seperator in String | |
805 | ||
806 | **/ | |
65e3f333 | 807 | UINTN |
808 | CountSeperatorsInString ( | |
809 | IN const CHAR16 *String, | |
810 | IN CHAR16 Seperator | |
811 | ) | |
949f388f | 812 | { |
813 | UINTN Count; | |
814 | ||
815 | for (Count = 0; *String != '\0'; String++) { | |
816 | if (*String == Seperator) { | |
817 | Count++; | |
818 | } | |
819 | } | |
820 | ||
821 | return Count; | |
822 | } | |
823 | ||
824 | ||
0ede3853 | 825 | EFI_STATUS |
7af94c1d | 826 | EFIAPI |
0ede3853 | 827 | SecImageRead ( |
828 | IN VOID *FileHandle, | |
829 | IN UINTN FileOffset, | |
830 | IN OUT UINTN *ReadSize, | |
831 | OUT VOID *Buffer | |
832 | ) | |
833 | /*++ | |
834 | ||
835 | Routine Description: | |
836 | Support routine for the PE/COFF Loader that reads a buffer from a PE/COFF file | |
837 | ||
838 | Arguments: | |
839 | FileHandle - The handle to the PE/COFF file | |
840 | FileOffset - The offset, in bytes, into the file to read | |
841 | ReadSize - The number of bytes to read from the file starting at FileOffset | |
842 | Buffer - A pointer to the buffer to read the data into. | |
843 | ||
844 | Returns: | |
845 | EFI_SUCCESS - ReadSize bytes of data were read into Buffer from the PE/COFF file starting at FileOffset | |
846 | ||
847 | **/ | |
848 | { | |
849 | CHAR8 *Destination8; | |
850 | CHAR8 *Source8; | |
851 | UINTN Length; | |
852 | ||
853 | Destination8 = Buffer; | |
854 | Source8 = (CHAR8 *) ((UINTN) FileHandle + FileOffset); | |
855 | Length = *ReadSize; | |
856 | while (Length--) { | |
857 | *(Destination8++) = *(Source8++); | |
858 | } | |
859 | ||
860 | return EFI_SUCCESS; | |
861 | } | |
862 | ||
863 | ||
949f388f | 864 | /*++ |
865 | ||
866 | Routine Description: | |
867 | Store the ModHandle in an array indexed by the Pdb File name. | |
868 | The ModHandle is needed to unload the image. | |
869 | ||
870 | Arguments: | |
871 | ImageContext - Input data returned from PE Laoder Library. Used to find the | |
872 | .PDB file name of the PE Image. | |
873 | ModHandle - Returned from LoadLibraryEx() and stored for call to | |
874 | FreeLibrary(). | |
875 | ||
876 | Returns: | |
877 | EFI_SUCCESS - ModHandle was stored. | |
878 | ||
879 | **/ | |
65e3f333 | 880 | EFI_STATUS |
881 | AddHandle ( | |
882 | IN PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext, | |
883 | IN VOID *ModHandle | |
884 | ) | |
949f388f | 885 | { |
886 | UINTN Index; | |
887 | IMAGE_CONTEXT_TO_MOD_HANDLE *Array; | |
888 | UINTN PreviousSize; | |
889 | ||
890 | ||
891 | Array = mImageContextModHandleArray; | |
892 | for (Index = 0; Index < mImageContextModHandleArraySize; Index++, Array++) { | |
893 | if (Array->ImageContext == NULL) { | |
894 | // | |
895 | // Make a copy of the stirng and store the ModHandle | |
896 | // | |
897 | Array->ImageContext = ImageContext; | |
898 | Array->ModHandle = ModHandle; | |
899 | return EFI_SUCCESS; | |
900 | } | |
901 | } | |
902 | ||
903 | // | |
904 | // No free space in mImageContextModHandleArray so grow it by | |
905 | // IMAGE_CONTEXT_TO_MOD_HANDLE entires. realloc will | |
906 | // copy the old values to the new locaiton. But it does | |
907 | // not zero the new memory area. | |
908 | // | |
909 | PreviousSize = mImageContextModHandleArraySize * sizeof (IMAGE_CONTEXT_TO_MOD_HANDLE); | |
910 | mImageContextModHandleArraySize += MAX_IMAGE_CONTEXT_TO_MOD_HANDLE_ARRAY_SIZE; | |
911 | ||
b8800fc5 | 912 | mImageContextModHandleArray = ReallocatePool ( |
913 | (mImageContextModHandleArraySize - 1) * sizeof (IMAGE_CONTEXT_TO_MOD_HANDLE), | |
914 | mImageContextModHandleArraySize * sizeof (IMAGE_CONTEXT_TO_MOD_HANDLE), | |
915 | mImageContextModHandleArray | |
916 | ); | |
949f388f | 917 | if (mImageContextModHandleArray == NULL) { |
918 | ASSERT (FALSE); | |
919 | return EFI_OUT_OF_RESOURCES; | |
920 | } | |
921 | ||
922 | memset (mImageContextModHandleArray + PreviousSize, 0, MAX_IMAGE_CONTEXT_TO_MOD_HANDLE_ARRAY_SIZE * sizeof (IMAGE_CONTEXT_TO_MOD_HANDLE)); | |
923 | ||
924 | return AddHandle (ImageContext, ModHandle); | |
925 | } | |
926 | ||
927 | ||
949f388f | 928 | /*++ |
929 | ||
930 | Routine Description: | |
931 | Return the ModHandle and delete the entry in the array. | |
932 | ||
933 | Arguments: | |
934 | ImageContext - Input data returned from PE Laoder Library. Used to find the | |
935 | .PDB file name of the PE Image. | |
936 | ||
937 | Returns: | |
938 | ModHandle - ModHandle assoicated with ImageContext is returned | |
939 | NULL - No ModHandle associated with ImageContext | |
940 | ||
941 | **/ | |
65e3f333 | 942 | VOID * |
943 | RemoveHandle ( | |
944 | IN PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext | |
945 | ) | |
949f388f | 946 | { |
947 | UINTN Index; | |
948 | IMAGE_CONTEXT_TO_MOD_HANDLE *Array; | |
949 | ||
950 | if (ImageContext->PdbPointer == NULL) { | |
951 | // | |
952 | // If no PDB pointer there is no ModHandle so return NULL | |
953 | // | |
954 | return NULL; | |
955 | } | |
956 | ||
957 | Array = mImageContextModHandleArray; | |
958 | for (Index = 0; Index < mImageContextModHandleArraySize; Index++, Array++) { | |
959 | if (Array->ImageContext == ImageContext) { | |
960 | // | |
961 | // If you find a match return it and delete the entry | |
962 | // | |
963 | Array->ImageContext = NULL; | |
964 | return Array->ModHandle; | |
965 | } | |
966 | } | |
967 | ||
968 | return NULL; | |
969 | } | |
970 | ||
971 | ||
972 | ||
973 | // | |
974 | // Target for gdb breakpoint in a script that uses gGdbWorkingFileName to source a | |
975 | // add-symbol-file command. Hey what can you say scripting in gdb is not that great.... | |
976 | // | |
977 | // Put .gdbinit in the CWD where you do gdb SecMain.dll for source level debug | |
978 | // | |
979 | // cat .gdbinit | |
980 | // b SecGdbScriptBreak | |
981 | // command | |
982 | // silent | |
65e3f333 | 983 | // source SecMain.gdb |
949f388f | 984 | // c |
985 | // end | |
986 | // | |
987 | VOID | |
988 | SecGdbScriptBreak ( | |
989 | VOID | |
990 | ) | |
991 | { | |
992 | } | |
993 | ||
994 | VOID | |
995 | SecUnixLoaderBreak ( | |
996 | VOID | |
997 | ) | |
998 | { | |
999 | } | |
1000 | ||
1001 | BOOLEAN | |
1002 | IsPdbFile ( | |
1003 | IN CHAR8 *PdbFileName | |
1004 | ) | |
1005 | { | |
1006 | UINTN Len; | |
1007 | ||
1008 | if (PdbFileName == NULL) { | |
1009 | return FALSE; | |
1010 | } | |
1011 | ||
1012 | Len = strlen (PdbFileName); | |
1013 | if ((Len < 5)|| (PdbFileName[Len - 4] != '.')) { | |
1014 | return FALSE; | |
1015 | } | |
1016 | ||
1017 | if ((PdbFileName[Len - 3] == 'P' || PdbFileName[Len - 3] == 'p') && | |
1018 | (PdbFileName[Len - 2] == 'D' || PdbFileName[Len - 2] == 'd') && | |
1019 | (PdbFileName[Len - 1] == 'B' || PdbFileName[Len - 1] == 'b')) { | |
1020 | return TRUE; | |
1021 | } | |
1022 | ||
1023 | return FALSE; | |
1024 | } | |
1025 | ||
1026 | ||
1027 | #define MAX_SPRINT_BUFFER_SIZE 0x200 | |
1028 | ||
1029 | void | |
1030 | PrintLoadAddress ( | |
1031 | IN PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext | |
1032 | ) | |
1033 | { | |
1034 | if (ImageContext->PdbPointer == NULL) { | |
1035 | fprintf (stderr, | |
1036 | "0x%08lx Loading NO DEBUG with entry point 0x%08lx\n", | |
1037 | (unsigned long)(ImageContext->ImageAddress), | |
1038 | (unsigned long)ImageContext->EntryPoint | |
1039 | ); | |
1040 | } else { | |
1041 | fprintf (stderr, | |
1042 | "0x%08lx Loading %s with entry point 0x%08lx\n", | |
1043 | (unsigned long)(ImageContext->ImageAddress + ImageContext->SizeOfHeaders), | |
1044 | ImageContext->PdbPointer, | |
1045 | (unsigned long)ImageContext->EntryPoint | |
1046 | ); | |
1047 | } | |
1048 | // Keep output synced up | |
1049 | fflush (stderr); | |
1050 | } | |
1051 | ||
1052 | ||
1053 | VOID | |
1054 | EFIAPI | |
1055 | SecPeCoffRelocateImageExtraAction ( | |
1056 | IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext | |
1057 | ) | |
1058 | { | |
1059 | ||
1060 | #ifdef __APPLE__ | |
1061 | BOOLEAN EnabledOnEntry; | |
1062 | ||
1063 | // | |
1064 | // Make sure writting of the file is an atomic operation | |
1065 | // | |
1066 | if (SecInterruptEanbled ()) { | |
1067 | SecDisableInterrupt (); | |
1068 | EnabledOnEntry = TRUE; | |
1069 | } else { | |
1070 | EnabledOnEntry = FALSE; | |
1071 | } | |
1072 | ||
1073 | PrintLoadAddress (ImageContext); | |
1074 | ||
1075 | // | |
1076 | // In mach-o (OS X executable) dlopen() can only load files in the MH_DYLIB of MH_BUNDLE format. | |
1077 | // To convert to PE/COFF we need to construct a mach-o with the MH_PRELOAD format. We create | |
1078 | // .dSYM files for the PE/COFF images that can be used by gdb for source level debugging. | |
1079 | // | |
1080 | FILE *GdbTempFile; | |
1081 | ||
1082 | // | |
1083 | // In the Mach-O to PE/COFF conversion the size of the PE/COFF headers is not accounted for. | |
1084 | // Thus we need to skip over the PE/COFF header when giving load addresses for our symbol table. | |
1085 | // | |
1086 | if (ImageContext->PdbPointer != NULL && !IsPdbFile (ImageContext->PdbPointer)) { | |
1087 | // | |
1088 | // Now we have a database of the images that are currently loaded | |
1089 | // | |
1090 | ||
1091 | // | |
1092 | // 'symbol-file' will clear out currnet symbol mappings in gdb. | |
1093 | // you can do a 'add-symbol-file filename address' for every image we loaded to get source | |
1094 | // level debug in gdb. Note Sec, being a true application will work differently. | |
1095 | // | |
1096 | // We add the PE/COFF header size into the image as the mach-O does not have a header in | |
1097 | // loaded into system memory. | |
1098 | // | |
1099 | // This gives us a data base of gdb commands and after something is unloaded that entry will be | |
1100 | // removed. We don't yet have the scheme of how to comunicate with gdb, but we have the | |
1101 | // data base of info ready to roll. | |
1102 | // | |
1103 | // We could use qXfer:libraries:read, but OS X GDB does not currently support it. | |
1104 | // <library-list> | |
1105 | // <library name="/lib/libc.so.6"> // ImageContext->PdbPointer | |
1106 | // <segment address="0x10000000"/> // ImageContext->ImageAddress + ImageContext->SizeOfHeaders | |
1107 | // </library> | |
1108 | // </library-list> | |
1109 | // | |
1110 | ||
1111 | // | |
1112 | // Write the file we need for the gdb script | |
1113 | // | |
1114 | GdbTempFile = fopen (gGdbWorkingFileName, "w"); | |
1115 | if (GdbTempFile != NULL) { | |
1116 | fprintf (GdbTempFile, "add-symbol-file %s 0x%08lx\n", ImageContext->PdbPointer, (long unsigned int)(ImageContext->ImageAddress + ImageContext->SizeOfHeaders)); | |
1117 | fclose (GdbTempFile); | |
1118 | ||
1119 | // | |
1120 | // Target for gdb breakpoint in a script that uses gGdbWorkingFileName to set a breakpoint. | |
1121 | // Hey what can you say scripting in gdb is not that great.... | |
1122 | // | |
1123 | SecGdbScriptBreak (); | |
1124 | } else { | |
1125 | ASSERT (FALSE); | |
1126 | } | |
1127 | ||
1128 | AddHandle (ImageContext, ImageContext->PdbPointer); | |
1129 | ||
1130 | if (EnabledOnEntry) { | |
1131 | SecEnableInterrupt (); | |
1132 | } | |
1133 | ||
1134 | ||
1135 | } | |
1136 | ||
1137 | #else | |
1138 | ||
1139 | void *Handle = NULL; | |
1140 | void *Entry = NULL; | |
1141 | ||
1142 | if (ImageContext->PdbPointer == NULL) { | |
1143 | return; | |
1144 | } | |
1145 | ||
1146 | if (!IsPdbFile (ImageContext->PdbPointer)) { | |
1147 | return; | |
1148 | } | |
1149 | ||
65e3f333 | 1150 | fprintf ( |
1151 | stderr, | |
949f388f | 1152 | "Loading %s 0x%08lx - entry point 0x%08lx\n", |
1153 | ImageContext->PdbPointer, | |
1154 | (unsigned long)ImageContext->ImageAddress, | |
65e3f333 | 1155 | (unsigned long)ImageContext->EntryPoint |
1156 | ); | |
949f388f | 1157 | |
1158 | Handle = dlopen (ImageContext->PdbPointer, RTLD_NOW); | |
1159 | ||
1160 | if (Handle) { | |
1161 | Entry = dlsym (Handle, "_ModuleEntryPoint"); | |
1162 | } else { | |
1163 | printf("%s\n", dlerror()); | |
1164 | } | |
1165 | ||
1166 | if (Entry != NULL) { | |
1167 | ImageContext->EntryPoint = (UINTN)Entry; | |
65e3f333 | 1168 | printf ("Change %s Entrypoint to :0x%08lx\n", ImageContext->PdbPointer, (unsigned long)Entry); |
949f388f | 1169 | } |
1170 | ||
1171 | SecUnixLoaderBreak (); | |
1172 | ||
1173 | #endif | |
1174 | ||
1175 | return; | |
1176 | } | |
1177 | ||
1178 | ||
1179 | VOID | |
1180 | EFIAPI | |
1181 | SecPeCoffUnloadImageExtraAction ( | |
1182 | IN PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext | |
1183 | ) | |
1184 | { | |
1185 | VOID *Handle; | |
1186 | ||
1187 | Handle = RemoveHandle (ImageContext); | |
1188 | ||
1189 | #ifdef __APPLE__ | |
1190 | FILE *GdbTempFile; | |
1191 | BOOLEAN EnabledOnEntry; | |
1192 | ||
1193 | if (Handle != NULL) { | |
1194 | // | |
1195 | // Need to skip .PDB files created from VC++ | |
1196 | // | |
1197 | if (!IsPdbFile (ImageContext->PdbPointer)) { | |
1198 | if (SecInterruptEanbled ()) { | |
1199 | SecDisableInterrupt (); | |
1200 | EnabledOnEntry = TRUE; | |
1201 | } else { | |
1202 | EnabledOnEntry = FALSE; | |
1203 | } | |
1204 | ||
1205 | // | |
1206 | // Write the file we need for the gdb script | |
1207 | // | |
1208 | GdbTempFile = fopen (gGdbWorkingFileName, "w"); | |
1209 | if (GdbTempFile != NULL) { | |
1210 | fprintf (GdbTempFile, "remove-symbol-file %s\n", ImageContext->PdbPointer); | |
1211 | fclose (GdbTempFile); | |
1212 | ||
1213 | // | |
1214 | // Target for gdb breakpoint in a script that uses gGdbWorkingFileName to set a breakpoint. | |
1215 | // Hey what can you say scripting in gdb is not that great.... | |
1216 | // | |
1217 | SecGdbScriptBreak (); | |
1218 | } else { | |
1219 | ASSERT (FALSE); | |
1220 | } | |
1221 | ||
1222 | if (EnabledOnEntry) { | |
1223 | SecEnableInterrupt (); | |
1224 | } | |
1225 | } | |
1226 | } | |
1227 | ||
1228 | #else | |
1229 | // | |
1230 | // Don't want to confuse gdb with symbols for something that got unloaded | |
1231 | // | |
1232 | if (Handle != NULL) { | |
1233 | dlclose (Handle); | |
1234 | } | |
1235 | ||
1236 | #endif | |
1237 | return; | |
1238 | } | |
1239 | ||
1240 |