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804405e7 | 1 | /*++ |
2 | ||
ccd55824 | 3 | Copyright (c) 2006 - 2009 Intel Corporation. |
4 | Portions copyright (c) 2008-2009 Apple Inc. | |
804405e7 | 5 | All rights reserved. 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 | Module Name: | |
14 | ||
15 | SecMain.c | |
16 | ||
17 | Abstract: | |
ccd55824 | 18 | Unix emulator of SEC phase. It's really a Posix application, but this is |
804405e7 | 19 | Ok since all the other modules for NT32 are NOT Posix applications. |
20 | ||
21 | This program processes host environment variables and figures out | |
22 | what the memory layout will be, how may FD's will be loaded and also | |
23 | what the boot mode is. | |
24 | ||
25 | The SEC registers a set of services with the SEC core. gPrivateDispatchTable | |
26 | is a list of PPI's produced by the SEC that are availble for usage in PEI. | |
27 | ||
28 | This code produces 128 K of temporary memory for the PEI stack by opening a | |
29 | host file and mapping it directly to memory addresses. | |
30 | ||
31 | The system.cmd script is used to set host environment variables that drive | |
32 | the configuration opitons of the SEC. | |
33 | ||
34 | --*/ | |
35 | ||
36 | #include "SecMain.h" | |
37 | #include <sys/mman.h> | |
38 | #include <Ppi/UnixPeiLoadFile.h> | |
ccd55824 | 39 | #include <Framework/StatusCode.h> |
804405e7 | 40 | #include <Ppi/TemporaryRamSupport.h> |
41 | #include <dlfcn.h> | |
ccd55824 | 42 | |
43 | #ifdef __APPLE__ | |
44 | #define MAP_ANONYMOUS MAP_ANON | |
45 | char *gGdbWorkingFileName = NULL; | |
46 | #endif | |
47 | ||
48 | ||
804405e7 | 49 | // |
50 | // Globals | |
51 | // | |
804405e7 | 52 | |
ccd55824 | 53 | UNIX_PEI_LOAD_FILE_PPI mSecUnixLoadFilePpi = { SecUnixPeiLoadFile }; |
804405e7 | 54 | |
ccd55824 | 55 | PEI_UNIX_AUTOSCAN_PPI mSecUnixAutoScanPpi = { SecUnixPeiAutoScan }; |
804405e7 | 56 | |
ccd55824 | 57 | PEI_UNIX_THUNK_PPI mSecUnixThunkPpi = { SecUnixUnixThunkAddress }; |
804405e7 | 58 | |
73aa7f04 | 59 | EFI_PEI_PROGRESS_CODE_PPI mSecStatusCodePpi = { SecPeiReportStatusCode }; |
804405e7 | 60 | |
ccd55824 | 61 | UNIX_FWH_PPI mSecFwhInformationPpi = { SecUnixFdAddress }; |
804405e7 | 62 | |
63 | TEMPORARY_RAM_SUPPORT_PPI mSecTemporaryRamSupportPpi = {SecTemporaryRamSupport}; | |
64 | ||
65 | EFI_PEI_PPI_DESCRIPTOR gPrivateDispatchTable[] = { | |
804405e7 | 66 | { |
67 | EFI_PEI_PPI_DESCRIPTOR_PPI, | |
68 | &gUnixPeiLoadFilePpiGuid, | |
ccd55824 | 69 | &mSecUnixLoadFilePpi |
804405e7 | 70 | }, |
71 | { | |
72 | EFI_PEI_PPI_DESCRIPTOR_PPI, | |
73 | &gPeiUnixAutoScanPpiGuid, | |
ccd55824 | 74 | &mSecUnixAutoScanPpi |
804405e7 | 75 | }, |
76 | { | |
77 | EFI_PEI_PPI_DESCRIPTOR_PPI, | |
78 | &gPeiUnixThunkPpiGuid, | |
ccd55824 | 79 | &mSecUnixThunkPpi |
804405e7 | 80 | }, |
81 | { | |
82 | EFI_PEI_PPI_DESCRIPTOR_PPI, | |
83 | &gEfiPeiStatusCodePpiGuid, | |
84 | &mSecStatusCodePpi | |
85 | }, | |
86 | { | |
87 | EFI_PEI_PPI_DESCRIPTOR_PPI, | |
88 | &gEfiTemporaryRamSupportPpiGuid, | |
89 | &mSecTemporaryRamSupportPpi | |
90 | }, | |
91 | { | |
92 | ||
93 | EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST, | |
94 | &gUnixFwhPpiGuid, | |
95 | &mSecFwhInformationPpi | |
96 | } | |
97 | }; | |
98 | ||
99 | ||
100 | // | |
101 | // Default information about where the FD is located. | |
102 | // This array gets filled in with information from EFI_FIRMWARE_VOLUMES | |
103 | // EFI_FIRMWARE_VOLUMES is a host environment variable set by system.cmd. | |
104 | // The number of array elements is allocated base on parsing | |
105 | // EFI_FIRMWARE_VOLUMES and the memory is never freed. | |
106 | // | |
107 | UINTN gFdInfoCount = 0; | |
108 | UNIX_FD_INFO *gFdInfo; | |
109 | ||
110 | // | |
111 | // Array that supports seperate memory rantes. | |
112 | // The memory ranges are set in system.cmd via the EFI_MEMORY_SIZE variable. | |
113 | // The number of array elements is allocated base on parsing | |
114 | // EFI_MEMORY_SIZE and the memory is never freed. | |
115 | // | |
116 | UINTN gSystemMemoryCount = 0; | |
117 | UNIX_SYSTEM_MEMORY *gSystemMemory; | |
118 | ||
ccd55824 | 119 | |
120 | ||
121 | UINTN mImageContextModHandleArraySize = 0; | |
122 | IMAGE_CONTEXT_TO_MOD_HANDLE *mImageContextModHandleArray = NULL; | |
123 | ||
124 | ||
804405e7 | 125 | VOID |
126 | EFIAPI | |
127 | SecSwitchStack ( | |
128 | UINT32 TemporaryMemoryBase, | |
129 | UINT32 PermenentMemoryBase | |
130 | ); | |
131 | ||
804405e7 | 132 | EFI_PHYSICAL_ADDRESS * |
133 | MapMemory ( | |
134 | INTN fd, | |
135 | UINT64 length, | |
136 | INTN prot, | |
137 | INTN flags); | |
138 | ||
804405e7 | 139 | EFI_STATUS |
140 | MapFile ( | |
141 | IN CHAR8 *FileName, | |
142 | IN OUT EFI_PHYSICAL_ADDRESS *BaseAddress, | |
143 | OUT UINT64 *Length | |
144 | ); | |
398b646f | 145 | EFI_STATUS |
146 | EFIAPI | |
147 | SecNt32PeCoffRelocateImage ( | |
148 | IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext | |
149 | ); | |
804405e7 | 150 | |
151 | ||
ccd55824 | 152 | int |
804405e7 | 153 | main ( |
ccd55824 | 154 | IN int Argc, |
155 | IN char **Argv, | |
156 | IN char **Envp | |
804405e7 | 157 | ) |
158 | /*++ | |
159 | ||
160 | Routine Description: | |
ccd55824 | 161 | Main entry point to SEC for Unix. This is a unix program |
804405e7 | 162 | |
163 | Arguments: | |
164 | Argc - Number of command line arguments | |
165 | Argv - Array of command line argument strings | |
166 | Envp - Array of environmemt variable strings | |
167 | ||
168 | Returns: | |
169 | 0 - Normal exit | |
170 | 1 - Abnormal exit | |
171 | ||
172 | --*/ | |
173 | { | |
174 | EFI_STATUS Status; | |
175 | EFI_PHYSICAL_ADDRESS InitialStackMemory; | |
176 | UINT64 InitialStackMemorySize; | |
177 | UINTN Index; | |
178 | UINTN Index1; | |
179 | UINTN Index2; | |
180 | UINTN PeiIndex; | |
181 | CHAR8 *FileName; | |
182 | BOOLEAN Done; | |
183 | VOID *PeiCoreFile; | |
184 | CHAR16 *MemorySizeStr; | |
185 | CHAR16 *FirmwareVolumesStr; | |
186 | UINTN *StackPointer; | |
187 | ||
188 | setbuf(stdout, 0); | |
189 | setbuf(stderr, 0); | |
190 | ||
191 | MemorySizeStr = (CHAR16 *) FixedPcdGetPtr (PcdUnixMemorySizeForSecMain); | |
192 | FirmwareVolumesStr = (CHAR16 *) FixedPcdGetPtr (PcdUnixFirmwareVolume); | |
193 | ||
194 | printf ("\nEDK SEC Main UNIX Emulation Environment from www.TianoCore.org\n"); | |
195 | ||
ccd55824 | 196 | #ifdef __APPLE__ |
197 | // | |
198 | // We can't use dlopen on OS X, so we need a scheme to get symboles into gdb | |
199 | // We need to create a temp file that contains gdb commands so we can load | |
200 | // symbols when we load every PE/COFF image. | |
201 | // | |
202 | Index = strlen (*Argv); | |
203 | gGdbWorkingFileName = malloc (Index + strlen(".gdb")); | |
204 | strcpy (gGdbWorkingFileName, *Argv); | |
205 | strcat (gGdbWorkingFileName, ".gdb"); | |
206 | #endif | |
207 | ||
208 | ||
804405e7 | 209 | // |
210 | // Allocate space for gSystemMemory Array | |
211 | // | |
212 | gSystemMemoryCount = CountSeperatorsInString (MemorySizeStr, '!') + 1; | |
213 | gSystemMemory = calloc (gSystemMemoryCount, sizeof (UNIX_SYSTEM_MEMORY)); | |
214 | if (gSystemMemory == NULL) { | |
215 | printf ("ERROR : Can not allocate memory for system. Exiting.\n"); | |
216 | exit (1); | |
217 | } | |
218 | // | |
219 | // Allocate space for gSystemMemory Array | |
220 | // | |
221 | gFdInfoCount = CountSeperatorsInString (FirmwareVolumesStr, '!') + 1; | |
222 | gFdInfo = calloc (gFdInfoCount, sizeof (UNIX_FD_INFO)); | |
223 | if (gFdInfo == NULL) { | |
224 | printf ("ERROR : Can not allocate memory for fd info. Exiting.\n"); | |
225 | exit (1); | |
226 | } | |
227 | // | |
228 | // Setup Boot Mode. If BootModeStr == "" then BootMode = 0 (BOOT_WITH_FULL_CONFIGURATION) | |
229 | // | |
ccd55824 | 230 | printf (" BootMode 0x%02x\n", (unsigned int)FixedPcdGet32 (PcdUnixBootMode)); |
804405e7 | 231 | |
232 | // | |
233 | // Open up a 128K file to emulate temp memory for PEI. | |
234 | // on a real platform this would be SRAM, or using the cache as RAM. | |
ccd55824 | 235 | // Set InitialStackMemory to zero so UnixOpenFile will allocate a new mapping |
804405e7 | 236 | // |
237 | InitialStackMemorySize = STACK_SIZE; | |
238 | InitialStackMemory = (UINTN)MapMemory(0, | |
239 | (UINT32) InitialStackMemorySize, | |
240 | PROT_READ | PROT_WRITE, | |
241 | MAP_ANONYMOUS | MAP_PRIVATE); | |
242 | if (InitialStackMemory == 0) { | |
243 | printf ("ERROR : Can not open SecStack Exiting\n"); | |
244 | exit (1); | |
245 | } | |
246 | ||
247 | printf (" SEC passing in %u KB of temp RAM at 0x%08lx to PEI\n", | |
ccd55824 | 248 | (unsigned int)(InitialStackMemorySize / 1024), |
804405e7 | 249 | (unsigned long)InitialStackMemory); |
250 | ||
251 | for (StackPointer = (UINTN*) (UINTN) InitialStackMemory; | |
ccd55824 | 252 | StackPointer < (UINTN*)(UINTN)((UINTN) InitialStackMemory + (UINT64) InitialStackMemorySize); |
804405e7 | 253 | StackPointer ++) { |
254 | *StackPointer = 0x5AA55AA5; | |
255 | } | |
256 | ||
257 | // | |
258 | // Open All the firmware volumes and remember the info in the gFdInfo global | |
259 | // | |
260 | FileName = (CHAR8 *)malloc (StrLen (FirmwareVolumesStr) + 1); | |
261 | if (FileName == NULL) { | |
262 | printf ("ERROR : Can not allocate memory for firmware volume string\n"); | |
263 | exit (1); | |
264 | } | |
265 | ||
266 | Index2 = 0; | |
267 | for (Done = FALSE, Index = 0, PeiIndex = 0, PeiCoreFile = NULL; | |
268 | FirmwareVolumesStr[Index2] != 0; | |
269 | Index++) { | |
270 | for (Index1 = 0; (FirmwareVolumesStr[Index2] != '!') && (FirmwareVolumesStr[Index2] != 0); Index2++) | |
271 | FileName[Index1++] = FirmwareVolumesStr[Index2]; | |
272 | if (FirmwareVolumesStr[Index2] == '!') | |
273 | Index2++; | |
274 | FileName[Index1] = '\0'; | |
275 | ||
276 | // | |
277 | // Open the FD and remmeber where it got mapped into our processes address space | |
278 | // | |
279 | Status = MapFile ( | |
280 | FileName, | |
281 | &gFdInfo[Index].Address, | |
282 | &gFdInfo[Index].Size | |
283 | ); | |
284 | if (EFI_ERROR (Status)) { | |
ccd55824 | 285 | printf ("ERROR : Can not open Firmware Device File %s (%x). Exiting.\n", FileName, (unsigned int)Status); |
804405e7 | 286 | exit (1); |
287 | } | |
288 | ||
289 | printf (" FD loaded from %s at 0x%08lx", | |
290 | FileName, (unsigned long)gFdInfo[Index].Address); | |
291 | ||
292 | if (PeiCoreFile == NULL) { | |
293 | // | |
294 | // Assume the beginning of the FD is an FV and look for the PEI Core. | |
295 | // Load the first one we find. | |
296 | // | |
297 | Status = SecFfsFindPeiCore ((EFI_FIRMWARE_VOLUME_HEADER *) (UINTN) gFdInfo[Index].Address, &PeiCoreFile); | |
298 | if (!EFI_ERROR (Status)) { | |
299 | PeiIndex = Index; | |
300 | printf (" contains SEC Core"); | |
301 | } | |
302 | } | |
303 | ||
304 | printf ("\n"); | |
305 | } | |
306 | // | |
307 | // Calculate memory regions and store the information in the gSystemMemory | |
308 | // global for later use. The autosizing code will use this data to | |
309 | // map this memory into the SEC process memory space. | |
310 | // | |
311 | Index1 = 0; | |
312 | Index = 0; | |
313 | while (1) { | |
314 | UINTN val = 0; | |
315 | // | |
316 | // Save the size of the memory. | |
317 | // | |
318 | while (MemorySizeStr[Index1] >= '0' && MemorySizeStr[Index1] <= '9') { | |
319 | val = val * 10 + MemorySizeStr[Index1] - '0'; | |
320 | Index1++; | |
321 | } | |
322 | gSystemMemory[Index++].Size = val * 0x100000; | |
323 | if (MemorySizeStr[Index1] == 0) | |
324 | break; | |
325 | Index1++; | |
326 | } | |
327 | ||
328 | printf ("\n"); | |
329 | ||
330 | // | |
331 | // Hand off to PEI Core | |
332 | // | |
333 | SecLoadFromCore ((UINTN) InitialStackMemory, (UINTN) InitialStackMemorySize, (UINTN) gFdInfo[0].Address, PeiCoreFile); | |
334 | ||
335 | // | |
336 | // If we get here, then the PEI Core returned. This is an error as PEI should | |
337 | // always hand off to DXE. | |
338 | // | |
339 | printf ("ERROR : PEI Core returned\n"); | |
340 | exit (1); | |
341 | } | |
342 | ||
343 | EFI_PHYSICAL_ADDRESS * | |
344 | MapMemory ( | |
345 | INTN fd, | |
346 | UINT64 length, | |
347 | INTN prot, | |
348 | INTN flags) | |
349 | { | |
350 | STATIC UINTN base = 0x40000000; | |
351 | CONST UINTN align = (1 << 24); | |
352 | VOID *res = NULL; | |
353 | BOOLEAN isAligned = 0; | |
354 | ||
355 | // | |
356 | // Try to get an aligned block somewhere in the address space of this | |
357 | // process. | |
358 | // | |
359 | while((!isAligned) && (base != 0)) { | |
360 | res = mmap ((void *)base, length, prot, flags, fd, 0); | |
361 | if (res == MAP_FAILED) { | |
362 | return NULL; | |
363 | } | |
364 | if ((((UINTN)res) & ~(align-1)) == (UINTN)res) { | |
365 | isAligned=1; | |
366 | } | |
367 | else { | |
368 | munmap(res, length); | |
369 | base += align; | |
370 | } | |
371 | } | |
372 | return res; | |
373 | } | |
374 | ||
375 | EFI_STATUS | |
376 | MapFile ( | |
377 | IN CHAR8 *FileName, | |
378 | IN OUT EFI_PHYSICAL_ADDRESS *BaseAddress, | |
379 | OUT UINT64 *Length | |
380 | ) | |
381 | /*++ | |
382 | ||
383 | Routine Description: | |
ccd55824 | 384 | Opens and memory maps a file using Unix services. If BaseAddress is non zero |
804405e7 | 385 | the process will try and allocate the memory starting at BaseAddress. |
386 | ||
387 | Arguments: | |
388 | FileName - The name of the file to open and map | |
389 | MapSize - The amount of the file to map in bytes | |
390 | CreationDisposition - The flags to pass to CreateFile(). Use to create new files for | |
391 | memory emulation, and exiting files for firmware volume emulation | |
392 | BaseAddress - The base address of the mapped file in the user address space. | |
393 | If passed in as NULL the a new memory region is used. | |
394 | If passed in as non NULL the request memory region is used for | |
395 | the mapping of the file into the process space. | |
396 | Length - The size of the mapped region in bytes | |
397 | ||
398 | Returns: | |
399 | EFI_SUCCESS - The file was opened and mapped. | |
400 | EFI_NOT_FOUND - FileName was not found in the current directory | |
401 | EFI_DEVICE_ERROR - An error occured attempting to map the opened file | |
402 | ||
403 | --*/ | |
404 | { | |
405 | int fd; | |
406 | VOID *res; | |
407 | UINTN FileSize; | |
408 | ||
409 | fd = open (FileName, O_RDONLY); | |
410 | if (fd < 0) | |
411 | return EFI_NOT_FOUND; | |
412 | FileSize = lseek (fd, 0, SEEK_END); | |
413 | ||
414 | #if 0 | |
415 | if (IsMain) | |
416 | { | |
417 | /* Read entry address. */ | |
418 | lseek (fd, FileSize - 0x20, SEEK_SET); | |
419 | if (read (fd, &EntryAddress, 4) != 4) | |
420 | { | |
421 | close (fd); | |
422 | return EFI_DEVICE_ERROR; | |
423 | } | |
424 | } | |
425 | #endif | |
426 | ||
427 | res = MapMemory(fd, FileSize, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE); | |
428 | ||
429 | close (fd); | |
430 | ||
431 | if (res == MAP_FAILED) | |
432 | return EFI_DEVICE_ERROR; | |
433 | ||
434 | *Length = (UINT64) FileSize; | |
435 | *BaseAddress = (EFI_PHYSICAL_ADDRESS) (UINTN) res; | |
436 | ||
437 | return EFI_SUCCESS; | |
438 | } | |
439 | ||
440 | #define BYTES_PER_RECORD 512 | |
441 | ||
442 | EFI_STATUS | |
443 | EFIAPI | |
444 | SecPeiReportStatusCode ( | |
ccd55824 | 445 | IN CONST EFI_PEI_SERVICES **PeiServices, |
804405e7 | 446 | IN EFI_STATUS_CODE_TYPE CodeType, |
447 | IN EFI_STATUS_CODE_VALUE Value, | |
448 | IN UINT32 Instance, | |
ccd55824 | 449 | IN CONST EFI_GUID *CallerId, |
450 | IN CONST EFI_STATUS_CODE_DATA *Data OPTIONAL | |
804405e7 | 451 | ) |
452 | /*++ | |
453 | ||
454 | Routine Description: | |
455 | ||
456 | This routine produces the ReportStatusCode PEI service. It's passed | |
457 | up to the PEI Core via a PPI. T | |
458 | ||
459 | This code currently uses the UNIX clib printf. This does not work the same way | |
460 | as the EFI Print (), as %t, %g, %s as Unicode are not supported. | |
461 | ||
462 | Arguments: | |
463 | (see EFI_PEI_REPORT_STATUS_CODE) | |
464 | ||
465 | Returns: | |
466 | EFI_SUCCESS - Always return success | |
467 | ||
468 | --*/ | |
469 | // TODO: PeiServices - add argument and description to function comment | |
470 | // TODO: CodeType - add argument and description to function comment | |
471 | // TODO: Value - add argument and description to function comment | |
472 | // TODO: Instance - add argument and description to function comment | |
473 | // TODO: CallerId - add argument and description to function comment | |
474 | // TODO: Data - add argument and description to function comment | |
475 | { | |
476 | CHAR8 *Format; | |
9c98c8e1 | 477 | BASE_LIST Marker; |
804405e7 | 478 | CHAR8 PrintBuffer[BYTES_PER_RECORD * 2]; |
479 | CHAR8 *Filename; | |
480 | CHAR8 *Description; | |
481 | UINT32 LineNumber; | |
482 | UINT32 ErrorLevel; | |
483 | ||
484 | ||
485 | if (Data == NULL) { | |
486 | } else if (ReportStatusCodeExtractAssertInfo (CodeType, Value, Data, &Filename, &Description, &LineNumber)) { | |
487 | // | |
488 | // Processes ASSERT () | |
489 | // | |
ccd55824 | 490 | printf ("ASSERT %s(%d): %s\n", Filename, (int)LineNumber, Description); |
804405e7 | 491 | |
492 | } else if (ReportStatusCodeExtractDebugInfo (Data, &ErrorLevel, &Marker, &Format)) { | |
493 | // | |
494 | // Process DEBUG () macro | |
495 | // | |
9c98c8e1 | 496 | AsciiBSPrint (PrintBuffer, BYTES_PER_RECORD, Format, Marker); |
804405e7 | 497 | printf (PrintBuffer); |
498 | } | |
499 | ||
500 | return EFI_SUCCESS; | |
501 | } | |
502 | ||
503 | /** | |
504 | Transfers control to a function starting with a new stack. | |
505 | ||
506 | Transfers control to the function specified by EntryPoint using the new stack | |
507 | specified by NewStack and passing in the parameters specified by Context1 and | |
508 | Context2. Context1 and Context2 are optional and may be NULL. The function | |
509 | EntryPoint must never return. | |
510 | ||
511 | If EntryPoint is NULL, then ASSERT(). | |
512 | If NewStack is NULL, then ASSERT(). | |
513 | ||
514 | @param EntryPoint A pointer to function to call with the new stack. | |
515 | @param Context1 A pointer to the context to pass into the EntryPoint | |
516 | function. | |
517 | @param Context2 A pointer to the context to pass into the EntryPoint | |
518 | function. | |
519 | @param NewStack A pointer to the new stack to use for the EntryPoint | |
520 | function. | |
521 | @param NewBsp A pointer to the new BSP for the EntryPoint on IPF. It's | |
522 | Reserved on other architectures. | |
523 | ||
524 | **/ | |
525 | VOID | |
526 | EFIAPI | |
527 | PeiSwitchStacks ( | |
528 | IN SWITCH_STACK_ENTRY_POINT EntryPoint, | |
529 | IN VOID *Context1, OPTIONAL | |
530 | IN VOID *Context2, OPTIONAL | |
531 | IN VOID *Context3, OPTIONAL | |
532 | IN VOID *NewStack | |
533 | ) | |
534 | { | |
535 | BASE_LIBRARY_JUMP_BUFFER JumpBuffer; | |
536 | ||
537 | ASSERT (EntryPoint != NULL); | |
538 | ASSERT (NewStack != NULL); | |
539 | ||
540 | // | |
541 | // Stack should be aligned with CPU_STACK_ALIGNMENT | |
542 | // | |
543 | ASSERT (((UINTN)NewStack & (CPU_STACK_ALIGNMENT - 1)) == 0); | |
544 | ||
545 | JumpBuffer.Eip = (UINTN)EntryPoint; | |
546 | JumpBuffer.Esp = (UINTN)NewStack - sizeof (VOID*); | |
547 | JumpBuffer.Esp -= sizeof (Context1) + sizeof (Context2) + sizeof(Context3); | |
548 | ((VOID**)JumpBuffer.Esp)[1] = Context1; | |
549 | ((VOID**)JumpBuffer.Esp)[2] = Context2; | |
550 | ((VOID**)JumpBuffer.Esp)[3] = Context3; | |
551 | ||
552 | LongJump (&JumpBuffer, (UINTN)-1); | |
553 | ||
554 | ||
555 | // | |
556 | // InternalSwitchStack () will never return | |
557 | // | |
558 | ASSERT (FALSE); | |
559 | } | |
560 | ||
561 | VOID | |
562 | SecLoadFromCore ( | |
563 | IN UINTN LargestRegion, | |
564 | IN UINTN LargestRegionSize, | |
565 | IN UINTN BootFirmwareVolumeBase, | |
566 | IN VOID *PeiCorePe32File | |
567 | ) | |
568 | /*++ | |
569 | ||
570 | Routine Description: | |
571 | This is the service to load the PEI Core from the Firmware Volume | |
572 | ||
573 | Arguments: | |
574 | LargestRegion - Memory to use for PEI. | |
575 | LargestRegionSize - Size of Memory to use for PEI | |
576 | BootFirmwareVolumeBase - Start of the Boot FV | |
577 | PeiCorePe32File - PEI Core PE32 | |
578 | ||
579 | Returns: | |
580 | Success means control is transfered and thus we should never return | |
581 | ||
582 | --*/ | |
583 | { | |
584 | EFI_STATUS Status; | |
585 | EFI_PHYSICAL_ADDRESS TopOfMemory; | |
586 | VOID *TopOfStack; | |
587 | UINT64 PeiCoreSize; | |
588 | EFI_PHYSICAL_ADDRESS PeiCoreEntryPoint; | |
589 | EFI_PHYSICAL_ADDRESS PeiImageAddress; | |
590 | EFI_SEC_PEI_HAND_OFF *SecCoreData; | |
591 | UINTN PeiStackSize; | |
592 | ||
593 | // | |
594 | // Compute Top Of Memory for Stack and PEI Core Allocations | |
595 | // | |
596 | TopOfMemory = LargestRegion + LargestRegionSize; | |
597 | PeiStackSize = (UINTN)RShiftU64((UINT64)STACK_SIZE,1); | |
598 | ||
599 | // | |
600 | // |-----------| <---- TemporaryRamBase + TemporaryRamSize | |
601 | // | Heap | | |
602 | // | | | |
603 | // |-----------| <---- StackBase / PeiTemporaryMemoryBase | |
604 | // | | | |
605 | // | Stack | | |
606 | // |-----------| <---- TemporaryRamBase | |
607 | // | |
608 | TopOfStack = (VOID *)(LargestRegion + PeiStackSize); | |
609 | TopOfMemory = LargestRegion + PeiStackSize; | |
610 | ||
611 | // | |
612 | // Reservet space for storing PeiCore's parament in stack. | |
613 | // | |
614 | TopOfStack = (VOID *)((UINTN)TopOfStack - sizeof (EFI_SEC_PEI_HAND_OFF) - CPU_STACK_ALIGNMENT); | |
615 | TopOfStack = ALIGN_POINTER (TopOfStack, CPU_STACK_ALIGNMENT); | |
616 | ||
398b646f | 617 | |
804405e7 | 618 | // |
619 | // Bind this information into the SEC hand-off state | |
620 | // | |
621 | SecCoreData = (EFI_SEC_PEI_HAND_OFF*)(UINTN) TopOfStack; | |
622 | SecCoreData->DataSize = sizeof(EFI_SEC_PEI_HAND_OFF); | |
623 | SecCoreData->BootFirmwareVolumeBase = (VOID*)BootFirmwareVolumeBase; | |
624 | SecCoreData->BootFirmwareVolumeSize = FixedPcdGet32(PcdUnixFirmwareFdSize); | |
625 | SecCoreData->TemporaryRamBase = (VOID*)(UINTN)LargestRegion; | |
626 | SecCoreData->TemporaryRamSize = STACK_SIZE; | |
627 | SecCoreData->StackBase = SecCoreData->TemporaryRamBase; | |
628 | SecCoreData->StackSize = PeiStackSize; | |
629 | SecCoreData->PeiTemporaryRamBase = (VOID*) ((UINTN) SecCoreData->TemporaryRamBase + PeiStackSize); | |
630 | SecCoreData->PeiTemporaryRamSize = STACK_SIZE - PeiStackSize; | |
631 | ||
632 | // | |
633 | // Load the PEI Core from a Firmware Volume | |
634 | // | |
ccd55824 | 635 | Status = SecUnixPeiLoadFile ( |
804405e7 | 636 | PeiCorePe32File, |
637 | &PeiImageAddress, | |
638 | &PeiCoreSize, | |
639 | &PeiCoreEntryPoint | |
640 | ); | |
641 | if (EFI_ERROR (Status)) { | |
642 | return ; | |
643 | } | |
644 | ||
645 | // | |
646 | // Transfer control to the PEI Core | |
647 | // | |
648 | PeiSwitchStacks ( | |
649 | (SWITCH_STACK_ENTRY_POINT) (UINTN) PeiCoreEntryPoint, | |
650 | SecCoreData, | |
651 | (VOID *) (UINTN) ((EFI_PEI_PPI_DESCRIPTOR *) &gPrivateDispatchTable), | |
652 | NULL, | |
653 | TopOfStack | |
654 | ); | |
655 | // | |
656 | // If we get here, then the PEI Core returned. This is an error | |
657 | // | |
658 | return ; | |
659 | } | |
660 | ||
661 | EFI_STATUS | |
662 | EFIAPI | |
ccd55824 | 663 | SecUnixPeiAutoScan ( |
804405e7 | 664 | IN UINTN Index, |
665 | OUT EFI_PHYSICAL_ADDRESS *MemoryBase, | |
666 | OUT UINT64 *MemorySize | |
667 | ) | |
668 | /*++ | |
669 | ||
670 | Routine Description: | |
671 | This service is called from Index == 0 until it returns EFI_UNSUPPORTED. | |
672 | It allows discontiguous memory regions to be supported by the emulator. | |
673 | It uses gSystemMemory[] and gSystemMemoryCount that were created by | |
674 | parsing the host environment variable EFI_MEMORY_SIZE. | |
675 | The size comes from the varaible and the address comes from the call to | |
ccd55824 | 676 | UnixOpenFile. |
804405e7 | 677 | |
678 | Arguments: | |
679 | Index - Which memory region to use | |
680 | MemoryBase - Return Base address of memory region | |
681 | MemorySize - Return size in bytes of the memory region | |
682 | ||
683 | Returns: | |
684 | EFI_SUCCESS - If memory region was mapped | |
685 | EFI_UNSUPPORTED - If Index is not supported | |
686 | ||
687 | --*/ | |
688 | { | |
689 | void *res; | |
690 | ||
691 | if (Index >= gSystemMemoryCount) { | |
692 | return EFI_UNSUPPORTED; | |
693 | } | |
694 | ||
695 | *MemoryBase = 0; | |
696 | res = MapMemory(0, gSystemMemory[Index].Size, | |
697 | PROT_READ | PROT_WRITE | PROT_EXEC, | |
698 | MAP_PRIVATE | MAP_ANONYMOUS); | |
699 | if (res == MAP_FAILED) | |
700 | return EFI_DEVICE_ERROR; | |
701 | *MemorySize = gSystemMemory[Index].Size; | |
702 | *MemoryBase = (UINTN)res; | |
703 | gSystemMemory[Index].Memory = *MemoryBase; | |
704 | ||
705 | return EFI_SUCCESS; | |
706 | } | |
707 | ||
708 | VOID * | |
709 | EFIAPI | |
ccd55824 | 710 | SecUnixUnixThunkAddress ( |
804405e7 | 711 | VOID |
712 | ) | |
713 | /*++ | |
714 | ||
715 | Routine Description: | |
716 | Since the SEC is the only Unix program in stack it must export | |
ccd55824 | 717 | an interface to do POSIX calls. gUnix is initailized in UnixThunk.c. |
804405e7 | 718 | |
719 | Arguments: | |
720 | InterfaceSize - sizeof (EFI_WIN_NT_THUNK_PROTOCOL); | |
ccd55824 | 721 | InterfaceBase - Address of the gUnix global |
804405e7 | 722 | |
723 | Returns: | |
724 | EFI_SUCCESS - Data returned | |
725 | ||
726 | --*/ | |
727 | { | |
728 | return gUnix; | |
729 | } | |
730 | ||
731 | ||
732 | EFI_STATUS | |
ccd55824 | 733 | SecUnixPeiLoadFile ( |
804405e7 | 734 | IN VOID *Pe32Data, |
ccd55824 | 735 | OUT EFI_PHYSICAL_ADDRESS *ImageAddress, |
736 | OUT UINT64 *ImageSize, | |
737 | OUT EFI_PHYSICAL_ADDRESS *EntryPoint | |
804405e7 | 738 | ) |
739 | /*++ | |
740 | ||
741 | Routine Description: | |
742 | Loads and relocates a PE/COFF image into memory. | |
743 | ||
744 | Arguments: | |
745 | Pe32Data - The base address of the PE/COFF file that is to be loaded and relocated | |
746 | ImageAddress - The base address of the relocated PE/COFF image | |
747 | ImageSize - The size of the relocated PE/COFF image | |
748 | EntryPoint - The entry point of the relocated PE/COFF image | |
749 | ||
750 | Returns: | |
751 | EFI_SUCCESS - The file was loaded and relocated | |
752 | EFI_OUT_OF_RESOURCES - There was not enough memory to load and relocate the PE/COFF file | |
753 | ||
754 | --*/ | |
755 | { | |
756 | EFI_STATUS Status; | |
757 | PE_COFF_LOADER_IMAGE_CONTEXT ImageContext; | |
758 | ||
759 | ZeroMem (&ImageContext, sizeof (ImageContext)); | |
760 | ImageContext.Handle = Pe32Data; | |
761 | ||
762 | ImageContext.ImageRead = (PE_COFF_LOADER_READ_FILE) SecImageRead; | |
763 | ||
398b646f | 764 | Status = PeCoffLoaderGetImageInfo (&ImageContext); |
804405e7 | 765 | if (EFI_ERROR (Status)) { |
766 | return Status; | |
767 | } | |
768 | // | |
769 | // Allocate space in UNIX (not emulator) memory. Extra space is for alignment | |
770 | // | |
771 | ImageContext.ImageAddress = (EFI_PHYSICAL_ADDRESS) (UINTN) malloc ((UINTN) (ImageContext.ImageSize + (ImageContext.SectionAlignment * 2))); | |
772 | if (ImageContext.ImageAddress == 0) { | |
773 | return EFI_OUT_OF_RESOURCES; | |
774 | } | |
775 | // | |
776 | // Align buffer on section boundry | |
777 | // | |
f7bef78c | 778 | ImageContext.ImageAddress += ImageContext.SectionAlignment - 1; |
804405e7 | 779 | ImageContext.ImageAddress &= ~(ImageContext.SectionAlignment - 1); |
780 | ||
781 | ||
398b646f | 782 | Status = PeCoffLoaderLoadImage (&ImageContext); |
804405e7 | 783 | if (EFI_ERROR (Status)) { |
784 | return Status; | |
785 | } | |
786 | ||
ccd55824 | 787 | SecPeCoffRelocateImageExtraAction (&ImageContext); |
804405e7 | 788 | |
789 | // | |
790 | // BugBug: Flush Instruction Cache Here when CPU Lib is ready | |
791 | // | |
792 | ||
793 | *ImageAddress = ImageContext.ImageAddress; | |
794 | *ImageSize = ImageContext.ImageSize; | |
795 | *EntryPoint = ImageContext.EntryPoint; | |
796 | ||
797 | return EFI_SUCCESS; | |
798 | } | |
799 | ||
ccd55824 | 800 | |
801 | RETURN_STATUS | |
802 | EFIAPI | |
803 | SecPeCoffGetEntryPoint ( | |
804 | IN VOID *Pe32Data, | |
805 | IN OUT VOID **EntryPoint | |
806 | ) | |
807 | { | |
808 | EFI_STATUS Status; | |
809 | EFI_PHYSICAL_ADDRESS ImageAddress; | |
810 | UINT64 ImageSize; | |
811 | EFI_PHYSICAL_ADDRESS PhysEntryPoint; | |
812 | ||
813 | Status = SecUnixPeiLoadFile (Pe32Data, &ImageAddress, &ImageSize, &PhysEntryPoint); | |
814 | ||
815 | *EntryPoint = (VOID *)(UINTN)PhysEntryPoint; | |
816 | return Status; | |
817 | } | |
818 | ||
819 | ||
820 | ||
804405e7 | 821 | EFI_STATUS |
822 | EFIAPI | |
ccd55824 | 823 | SecUnixFdAddress ( |
804405e7 | 824 | IN UINTN Index, |
825 | IN OUT EFI_PHYSICAL_ADDRESS *FdBase, | |
826 | IN OUT UINT64 *FdSize | |
827 | ) | |
828 | /*++ | |
829 | ||
830 | Routine Description: | |
831 | Return the FD Size and base address. Since the FD is loaded from a | |
832 | file into host memory only the SEC will know it's address. | |
833 | ||
834 | Arguments: | |
835 | Index - Which FD, starts at zero. | |
836 | FdSize - Size of the FD in bytes | |
837 | FdBase - Start address of the FD. Assume it points to an FV Header | |
838 | ||
839 | Returns: | |
840 | EFI_SUCCESS - Return the Base address and size of the FV | |
841 | EFI_UNSUPPORTED - Index does nto map to an FD in the system | |
842 | ||
843 | --*/ | |
844 | { | |
845 | if (Index >= gFdInfoCount) { | |
846 | return EFI_UNSUPPORTED; | |
847 | } | |
848 | ||
849 | *FdBase = gFdInfo[Index].Address; | |
850 | *FdSize = gFdInfo[Index].Size; | |
851 | ||
852 | if (*FdBase == 0 && *FdSize == 0) { | |
853 | return EFI_UNSUPPORTED; | |
854 | } | |
855 | ||
856 | return EFI_SUCCESS; | |
857 | } | |
858 | ||
859 | EFI_STATUS | |
860 | EFIAPI | |
861 | SecImageRead ( | |
862 | IN VOID *FileHandle, | |
863 | IN UINTN FileOffset, | |
864 | IN OUT UINTN *ReadSize, | |
865 | OUT VOID *Buffer | |
866 | ) | |
867 | /*++ | |
868 | ||
869 | Routine Description: | |
870 | Support routine for the PE/COFF Loader that reads a buffer from a PE/COFF file | |
871 | ||
872 | Arguments: | |
873 | FileHandle - The handle to the PE/COFF file | |
874 | FileOffset - The offset, in bytes, into the file to read | |
875 | ReadSize - The number of bytes to read from the file starting at FileOffset | |
876 | Buffer - A pointer to the buffer to read the data into. | |
877 | ||
878 | Returns: | |
879 | EFI_SUCCESS - ReadSize bytes of data were read into Buffer from the PE/COFF file starting at FileOffset | |
880 | ||
881 | --*/ | |
882 | { | |
883 | CHAR8 *Destination8; | |
884 | CHAR8 *Source8; | |
885 | UINTN Length; | |
886 | ||
887 | Destination8 = Buffer; | |
888 | Source8 = (CHAR8 *) ((UINTN) FileHandle + FileOffset); | |
889 | Length = *ReadSize; | |
890 | while (Length--) { | |
891 | *(Destination8++) = *(Source8++); | |
892 | } | |
893 | ||
894 | return EFI_SUCCESS; | |
895 | } | |
896 | ||
897 | UINTN | |
898 | CountSeperatorsInString ( | |
899 | IN const CHAR16 *String, | |
900 | IN CHAR16 Seperator | |
901 | ) | |
902 | /*++ | |
903 | ||
904 | Routine Description: | |
905 | Count the number of seperators in String | |
906 | ||
907 | Arguments: | |
908 | String - String to process | |
909 | Seperator - Item to count | |
910 | ||
911 | Returns: | |
912 | Number of Seperator in String | |
913 | ||
914 | --*/ | |
915 | { | |
916 | UINTN Count; | |
917 | ||
918 | for (Count = 0; *String != '\0'; String++) { | |
919 | if (*String == Seperator) { | |
920 | Count++; | |
921 | } | |
922 | } | |
923 | ||
924 | return Count; | |
925 | } | |
926 | ||
927 | ||
ccd55824 | 928 | EFI_STATUS |
929 | AddHandle ( | |
930 | IN PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext, | |
931 | IN VOID *ModHandle | |
932 | ) | |
933 | /*++ | |
934 | ||
935 | Routine Description: | |
936 | Store the ModHandle in an array indexed by the Pdb File name. | |
937 | The ModHandle is needed to unload the image. | |
938 | ||
939 | Arguments: | |
940 | ImageContext - Input data returned from PE Laoder Library. Used to find the | |
941 | .PDB file name of the PE Image. | |
942 | ModHandle - Returned from LoadLibraryEx() and stored for call to | |
943 | FreeLibrary(). | |
944 | ||
945 | Returns: | |
946 | EFI_SUCCESS - ModHandle was stored. | |
947 | ||
948 | --*/ | |
949 | { | |
950 | UINTN Index; | |
951 | IMAGE_CONTEXT_TO_MOD_HANDLE *Array; | |
952 | UINTN PreviousSize; | |
953 | ||
954 | ||
955 | Array = mImageContextModHandleArray; | |
956 | for (Index = 0; Index < mImageContextModHandleArraySize; Index++, Array++) { | |
957 | if (Array->ImageContext == NULL) { | |
958 | // | |
959 | // Make a copy of the stirng and store the ModHandle | |
960 | // | |
961 | Array->ImageContext = ImageContext; | |
962 | Array->ModHandle = ModHandle; | |
963 | return EFI_SUCCESS; | |
964 | } | |
965 | } | |
966 | ||
967 | // | |
968 | // No free space in mImageContextModHandleArray so grow it by | |
969 | // IMAGE_CONTEXT_TO_MOD_HANDLE entires. realloc will | |
970 | // copy the old values to the new locaiton. But it does | |
971 | // not zero the new memory area. | |
972 | // | |
973 | PreviousSize = mImageContextModHandleArraySize * sizeof (IMAGE_CONTEXT_TO_MOD_HANDLE); | |
974 | mImageContextModHandleArraySize += MAX_IMAGE_CONTEXT_TO_MOD_HANDLE_ARRAY_SIZE; | |
975 | ||
976 | mImageContextModHandleArray = realloc (mImageContextModHandleArray, mImageContextModHandleArraySize * sizeof (IMAGE_CONTEXT_TO_MOD_HANDLE)); | |
977 | if (mImageContextModHandleArray == NULL) { | |
978 | ASSERT (FALSE); | |
979 | return EFI_OUT_OF_RESOURCES; | |
980 | } | |
981 | ||
982 | memset (mImageContextModHandleArray + PreviousSize, 0, MAX_IMAGE_CONTEXT_TO_MOD_HANDLE_ARRAY_SIZE * sizeof (IMAGE_CONTEXT_TO_MOD_HANDLE)); | |
983 | ||
984 | return AddHandle (ImageContext, ModHandle); | |
985 | } | |
986 | ||
987 | ||
988 | VOID * | |
989 | RemoveHandle ( | |
990 | IN PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext | |
991 | ) | |
992 | /*++ | |
993 | ||
994 | Routine Description: | |
995 | Return the ModHandle and delete the entry in the array. | |
996 | ||
997 | Arguments: | |
998 | ImageContext - Input data returned from PE Laoder Library. Used to find the | |
999 | .PDB file name of the PE Image. | |
1000 | ||
1001 | Returns: | |
1002 | ModHandle - ModHandle assoicated with ImageContext is returned | |
1003 | NULL - No ModHandle associated with ImageContext | |
1004 | ||
1005 | --*/ | |
1006 | { | |
1007 | UINTN Index; | |
1008 | IMAGE_CONTEXT_TO_MOD_HANDLE *Array; | |
1009 | ||
1010 | if (ImageContext->PdbPointer == NULL) { | |
1011 | // | |
1012 | // If no PDB pointer there is no ModHandle so return NULL | |
1013 | // | |
1014 | return NULL; | |
1015 | } | |
1016 | ||
1017 | Array = mImageContextModHandleArray; | |
1018 | for (Index = 0; Index < mImageContextModHandleArraySize; Index++, Array++) { | |
1019 | if ((Array->ImageContext == ImageContext)) { | |
1020 | // | |
1021 | // If you find a match return it and delete the entry | |
1022 | // | |
1023 | Array->ImageContext = NULL; | |
1024 | return Array->ModHandle; | |
1025 | } | |
1026 | } | |
1027 | ||
1028 | return NULL; | |
1029 | } | |
1030 | ||
1031 | ||
1032 | ||
1033 | // | |
1034 | // Target for gdb breakpoint in a script that uses gGdbWorkingFileName to source a | |
1035 | // add-symbol-file command. Hey what can you say scripting in gdb is not that great.... | |
1036 | // | |
1037 | // Put .gdbinit in the CWD where you do gdb SecMain.dll for source level debug | |
1038 | // | |
1039 | // cat .gdbinit | |
1040 | // b SecGdbScriptBreak | |
1041 | // command | |
1042 | // silent | |
1043 | // source SecMain.dll.gdb | |
1044 | // c | |
1045 | // end | |
1046 | // | |
1047 | VOID | |
1048 | SecGdbScriptBreak ( | |
1049 | VOID | |
1050 | ) | |
1051 | { | |
1052 | } | |
804405e7 | 1053 | |
804405e7 | 1054 | VOID |
1055 | SecUnixLoaderBreak ( | |
1056 | VOID | |
1057 | ) | |
1058 | { | |
1059 | } | |
1060 | ||
ccd55824 | 1061 | BOOLEAN |
1062 | IsPdbFile ( | |
1063 | IN CHAR8 *PdbFileName | |
1064 | ) | |
1065 | { | |
1066 | UINTN Len; | |
1067 | ||
1068 | if (PdbFileName == NULL) { | |
1069 | return FALSE; | |
1070 | } | |
1071 | ||
1072 | Len = strlen (PdbFileName); | |
1073 | if ((Len < 5)|| (PdbFileName[Len - 4] != '.')) { | |
1074 | return FALSE; | |
1075 | } | |
1076 | ||
1077 | if ((PdbFileName[Len - 3] == 'P' || PdbFileName[Len - 3] == 'p') && | |
1078 | (PdbFileName[Len - 2] == 'D' || PdbFileName[Len - 2] == 'd') && | |
1079 | (PdbFileName[Len - 1] == 'B' || PdbFileName[Len - 1] == 'b')) { | |
1080 | return TRUE; | |
1081 | } | |
1082 | ||
1083 | return FALSE; | |
1084 | } | |
1085 | ||
1086 | ||
1087 | #define MAX_SPRINT_BUFFER_SIZE 0x200 | |
1088 | ||
1089 | void | |
1090 | PrintLoadAddress ( | |
1091 | IN PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext | |
1092 | ) | |
1093 | { | |
1094 | fprintf (stderr, | |
1095 | "0x%08lx Loading %s with entry point 0x%08lx\n", | |
1096 | (unsigned long)ImageContext->ImageAddress + ImageContext->SizeOfHeaders, | |
1097 | ImageContext->PdbPointer, | |
1098 | (unsigned long)ImageContext->EntryPoint | |
1099 | ); | |
1100 | ||
1101 | // Keep output synced up | |
1102 | fflush (stderr); | |
1103 | } | |
1104 | ||
1105 | ||
1106 | VOID | |
804405e7 | 1107 | EFIAPI |
ccd55824 | 1108 | SecPeCoffRelocateImageExtraAction ( |
804405e7 | 1109 | IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext |
1110 | ) | |
1111 | { | |
804405e7 | 1112 | EFI_STATUS Status; |
1113 | ||
804405e7 | 1114 | Status = PeCoffLoaderRelocateImage (ImageContext); |
ccd55824 | 1115 | if (EFI_ERROR (Status)) { |
1116 | PrintLoadAddress (ImageContext); | |
1117 | return; | |
1118 | } | |
1119 | ||
1120 | #ifdef __APPLE__ | |
1121 | PrintLoadAddress (ImageContext); | |
1122 | ||
1123 | // | |
1124 | // In mach-o (OS X executable) dlopen() can only load files in the MH_DYLIB of MH_BUNDLE format. | |
1125 | // To convert to PE/COFF we need to construct a mach-o with the MH_PRELOAD format. We create | |
1126 | // .dSYM files for the PE/COFF images that can be used by gdb for source level debugging. | |
1127 | // | |
1128 | FILE *GdbTempFile; | |
1129 | ||
1130 | // | |
1131 | // In the Mach-O to PE/COFF conversion the size of the PE/COFF headers is not accounted for. | |
1132 | // Thus we need to skip over the PE/COFF header when giving load addresses for our symbol table. | |
1133 | // | |
1134 | if (ImageContext->PdbPointer != NULL && !IsPdbFile (ImageContext->PdbPointer)) { | |
1135 | // | |
1136 | // Now we have a database of the images that are currently loaded | |
1137 | // | |
1138 | ||
1139 | // | |
1140 | // 'symbol-file' will clear out currnet symbol mappings in gdb. | |
1141 | // you can do a 'add-symbol-file filename address' for every image we loaded to get source | |
1142 | // level debug in gdb. Note Sec, being a true application will work differently. | |
1143 | // | |
1144 | // We add the PE/COFF header size into the image as the mach-O does not have a header in | |
1145 | // loaded into system memory. | |
1146 | // | |
1147 | // This gives us a data base of gdb commands and after something is unloaded that entry will be | |
1148 | // removed. We don't yet have the scheme of how to comunicate with gdb, but we have the | |
1149 | // data base of info ready to roll. | |
1150 | // | |
1151 | // We could use qXfer:libraries:read, but OS X GDB does not currently support it. | |
1152 | // <library-list> | |
1153 | // <library name="/lib/libc.so.6"> // ImageContext->PdbPointer | |
1154 | // <segment address="0x10000000"/> // ImageContext->ImageAddress + ImageContext->SizeOfHeaders | |
1155 | // </library> | |
1156 | // </library-list> | |
1157 | // | |
1158 | ||
1159 | // | |
1160 | // Write the file we need for the gdb script | |
1161 | // | |
1162 | GdbTempFile = fopen (gGdbWorkingFileName, "w"); | |
1163 | if (GdbTempFile != NULL) { | |
1164 | fprintf (GdbTempFile, "add-symbol-file %s 0x%x\n", ImageContext->PdbPointer, (UINTN)(ImageContext->ImageAddress + ImageContext->SizeOfHeaders)); | |
1165 | fclose (GdbTempFile); | |
1166 | ||
1167 | // | |
1168 | // Target for gdb breakpoint in a script that uses gGdbWorkingFileName to set a breakpoint. | |
1169 | // Hey what can you say scripting in gdb is not that great.... | |
1170 | // | |
1171 | SecGdbScriptBreak (); | |
1172 | } | |
1173 | ||
1174 | AddHandle (ImageContext, ImageContext->PdbPointer); | |
1175 | ||
1176 | } | |
1177 | ||
1178 | #else | |
1179 | ||
1180 | void *Handle = NULL; | |
1181 | void *Entry = NULL; | |
1182 | ||
804405e7 | 1183 | fprintf (stderr, |
1184 | "Loading %s 0x%08lx - entry point 0x%08lx\n", | |
1185 | ImageContext->PdbPointer, | |
1186 | (unsigned long)ImageContext->ImageAddress, | |
1187 | (unsigned long)ImageContext->EntryPoint); | |
1188 | ||
865c7e17 | 1189 | Handle = dlopen(ImageContext->PdbPointer, RTLD_NOW); |
1190 | ||
1191 | if (Handle) { | |
1192 | Entry = dlsym(Handle, "_ModuleEntryPoint"); | |
1193 | } else { | |
1194 | printf("%s\n", dlerror()); | |
1195 | } | |
1196 | ||
1197 | if (Entry != NULL) { | |
ccd55824 | 1198 | ImageContext->EntryPoint = (UINTN)Entry; |
1199 | printf("Change %s Entrypoint to :0x%08lx\n", ImageContext->PdbPointer, (unsigned long)Entry); | |
865c7e17 | 1200 | } |
1201 | ||
804405e7 | 1202 | SecUnixLoaderBreak (); |
1203 | ||
ccd55824 | 1204 | #endif |
1205 | ||
1206 | return; | |
804405e7 | 1207 | } |
1208 | ||
1209 | ||
ccd55824 | 1210 | VOID |
804405e7 | 1211 | EFIAPI |
ccd55824 | 1212 | SecPeCoffLoaderUnloadImageExtraAction ( |
804405e7 | 1213 | IN PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext |
1214 | ) | |
1215 | { | |
ccd55824 | 1216 | VOID *Handle; |
1217 | ||
1218 | Handle = RemoveHandle (ImageContext); | |
1219 | ||
1220 | #ifdef __APPLE__ | |
1221 | FILE *GdbTempFile; | |
1222 | ||
1223 | if (Handle != NULL) { | |
1224 | // | |
1225 | // Need to skip .PDB files created from VC++ | |
1226 | // | |
1227 | if (!IsPdbFile (ImageContext->PdbPointer)) { | |
1228 | // | |
1229 | // Write the file we need for the gdb script | |
1230 | // | |
1231 | GdbTempFile = fopen (gGdbWorkingFileName, "w"); | |
1232 | if (GdbTempFile != NULL) { | |
1233 | fprintf (GdbTempFile, "remove-symbol-file %s\n", ImageContext->PdbPointer); | |
1234 | fclose (GdbTempFile); | |
1235 | ||
1236 | // | |
1237 | // Target for gdb breakpoint in a script that uses gGdbWorkingFileName to set a breakpoint. | |
1238 | // Hey what can you say scripting in gdb is not that great.... | |
1239 | // | |
1240 | SecGdbScriptBreak (); | |
1241 | } | |
1242 | } | |
1243 | } | |
1244 | ||
1245 | #else | |
1246 | // | |
1247 | // Don't want to confuse gdb with symbols for something that got unloaded | |
1248 | // | |
1249 | if (Handle != NULL) { | |
1250 | dlclose (Handle); | |
1251 | } | |
1252 | ||
1253 | #endif | |
1254 | return; | |
804405e7 | 1255 | } |
1256 | ||
1257 | VOID | |
1258 | ModuleEntryPoint ( | |
1259 | VOID | |
1260 | ) | |
1261 | { | |
1262 | } | |
1263 | ||
1264 | EFI_STATUS | |
1265 | EFIAPI | |
1266 | SecTemporaryRamSupport ( | |
1267 | IN CONST EFI_PEI_SERVICES **PeiServices, | |
1268 | IN EFI_PHYSICAL_ADDRESS TemporaryMemoryBase, | |
1269 | IN EFI_PHYSICAL_ADDRESS PermanentMemoryBase, | |
1270 | IN UINTN CopySize | |
1271 | ) | |
1272 | { | |
1273 | // | |
1274 | // Migrate the whole temporary memory to permenent memory. | |
1275 | // | |
1276 | CopyMem ( | |
1277 | (VOID*)(UINTN)PermanentMemoryBase, | |
1278 | (VOID*)(UINTN)TemporaryMemoryBase, | |
1279 | CopySize | |
1280 | ); | |
1281 | ||
1282 | // | |
1283 | // SecSwitchStack function must be invoked after the memory migration | |
1284 | // immediatly, also we need fixup the stack change caused by new call into | |
1285 | // permenent memory. | |
1286 | // | |
1287 | SecSwitchStack ( | |
1288 | (UINT32) TemporaryMemoryBase, | |
1289 | (UINT32) PermanentMemoryBase | |
1290 | ); | |
1291 | ||
1292 | // | |
1293 | // We need *not* fix the return address because currently, | |
1294 | // The PeiCore is excuted in flash. | |
1295 | // | |
1296 | ||
1297 | // | |
1fd8c31a | 1298 | // Simulate to invalid temporary memory, terminate temporary memory |
804405e7 | 1299 | // |
1300 | //ZeroMem ((VOID*)(UINTN)TemporaryMemoryBase, CopySize); | |
1301 | ||
1302 | return EFI_SUCCESS; | |
1303 | } |