]>
Commit | Line | Data |
---|---|---|
f51461c8 | 1 | /** @file\r |
97fa0ee9 | 2 | Elf64 convert solution\r |
f51461c8 | 3 | \r |
251f9b39 | 4 | Copyright (c) 2010 - 2021, Intel Corporation. All rights reserved.<BR>\r |
1ee16228 | 5 | Portions copyright (c) 2013-2022, ARM Ltd. All rights reserved.<BR>\r |
ad1db975 | 6 | Portions Copyright (c) 2020, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>\r |
f51461c8 | 7 | \r |
2e351cbe | 8 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
f51461c8 LG |
9 | \r |
10 | **/\r | |
11 | \r | |
12 | #include "WinNtInclude.h"\r | |
13 | \r | |
14 | #ifndef __GNUC__\r | |
15 | #include <windows.h>\r | |
16 | #include <io.h>\r | |
17 | #endif\r | |
18 | #include <assert.h>\r | |
19 | #include <stdio.h>\r | |
20 | #include <stdlib.h>\r | |
21 | #include <string.h>\r | |
22 | #include <time.h>\r | |
23 | #include <ctype.h>\r | |
24 | \r | |
25 | #include <Common/UefiBaseTypes.h>\r | |
26 | #include <IndustryStandard/PeImage.h>\r | |
27 | \r | |
28 | #include "PeCoffLib.h"\r | |
29 | #include "EfiUtilityMsgs.h"\r | |
30 | \r | |
31 | #include "GenFw.h"\r | |
32 | #include "ElfConvert.h"\r | |
33 | #include "Elf64Convert.h"\r | |
34 | \r | |
35 | STATIC\r | |
36 | VOID\r | |
37 | ScanSections64 (\r | |
38 | VOID\r | |
39 | );\r | |
40 | \r | |
41 | STATIC\r | |
42 | BOOLEAN\r | |
43 | WriteSections64 (\r | |
44 | SECTION_FILTER_TYPES FilterType\r | |
45 | );\r | |
46 | \r | |
47 | STATIC\r | |
48 | VOID\r | |
49 | WriteRelocations64 (\r | |
50 | VOID\r | |
51 | );\r | |
52 | \r | |
53 | STATIC\r | |
54 | VOID\r | |
55 | WriteDebug64 (\r | |
56 | VOID\r | |
57 | );\r | |
58 | \r | |
414cd2a4 HLX |
59 | STATIC\r |
60 | VOID\r | |
61 | WriteExport64 (\r | |
62 | VOID\r | |
63 | );\r | |
64 | \r | |
f51461c8 LG |
65 | STATIC\r |
66 | VOID\r | |
67 | SetImageSize64 (\r | |
68 | VOID\r | |
69 | );\r | |
70 | \r | |
71 | STATIC\r | |
72 | VOID\r | |
73 | CleanUp64 (\r | |
74 | VOID\r | |
75 | );\r | |
76 | \r | |
77 | //\r | |
fb0b35e0 | 78 | // Rename ELF32 structures to common names to help when porting to ELF64.\r |
f51461c8 LG |
79 | //\r |
80 | typedef Elf64_Shdr Elf_Shdr;\r | |
81 | typedef Elf64_Ehdr Elf_Ehdr;\r | |
82 | typedef Elf64_Rel Elf_Rel;\r | |
83 | typedef Elf64_Rela Elf_Rela;\r | |
84 | typedef Elf64_Sym Elf_Sym;\r | |
85 | typedef Elf64_Phdr Elf_Phdr;\r | |
86 | typedef Elf64_Dyn Elf_Dyn;\r | |
87 | #define ELFCLASS ELFCLASS64\r | |
88 | #define ELF_R_TYPE(r) ELF64_R_TYPE(r)\r | |
89 | #define ELF_R_SYM(r) ELF64_R_SYM(r)\r | |
90 | \r | |
91 | //\r | |
92 | // Well known ELF structures.\r | |
93 | //\r | |
94 | STATIC Elf_Ehdr *mEhdr;\r | |
95 | STATIC Elf_Shdr *mShdrBase;\r | |
96 | STATIC Elf_Phdr *mPhdrBase;\r | |
97 | \r | |
ecbaa856 Z |
98 | //\r |
99 | // GOT information\r | |
100 | //\r | |
101 | STATIC Elf_Shdr *mGOTShdr = NULL;\r | |
102 | STATIC UINT32 mGOTShindex = 0;\r | |
103 | STATIC UINT32 *mGOTCoffEntries = NULL;\r | |
104 | STATIC UINT32 mGOTMaxCoffEntries = 0;\r | |
105 | STATIC UINT32 mGOTNumCoffEntries = 0;\r | |
106 | \r | |
f51461c8 LG |
107 | //\r |
108 | // Coff information\r | |
109 | //\r | |
54b1b57a | 110 | STATIC UINT32 mCoffAlignment = 0x20;\r |
f51461c8 LG |
111 | \r |
112 | //\r | |
113 | // PE section alignment.\r | |
114 | //\r | |
414cd2a4 | 115 | STATIC UINT16 mCoffNbrSections = 4;\r |
f51461c8 LG |
116 | \r |
117 | //\r | |
118 | // ELF sections to offset in Coff file.\r | |
119 | //\r | |
120 | STATIC UINT32 *mCoffSectionsOffset = NULL;\r | |
121 | \r | |
122 | //\r | |
123 | // Offsets in COFF file\r | |
124 | //\r | |
125 | STATIC UINT32 mNtHdrOffset;\r | |
126 | STATIC UINT32 mTextOffset;\r | |
127 | STATIC UINT32 mDataOffset;\r | |
128 | STATIC UINT32 mHiiRsrcOffset;\r | |
129 | STATIC UINT32 mRelocOffset;\r | |
0192b71c | 130 | STATIC UINT32 mDebugOffset;\r |
414cd2a4 | 131 | STATIC UINT32 mExportOffset;\r |
ad1db975 AC |
132 | //\r |
133 | // Used for RISC-V relocations.\r | |
134 | //\r | |
135 | STATIC UINT8 *mRiscVPass1Targ = NULL;\r | |
136 | STATIC Elf_Shdr *mRiscVPass1Sym = NULL;\r | |
137 | STATIC Elf64_Half mRiscVPass1SymSecIndex = 0;\r | |
abfff7c4 S |
138 | STATIC INT32 mRiscVPass1Offset;\r |
139 | STATIC INT32 mRiscVPass1GotFixup;\r | |
ad1db975 | 140 | \r |
414cd2a4 HLX |
141 | //\r |
142 | // Used for Export section.\r | |
143 | //\r | |
144 | STATIC UINT32 mExportSize;\r | |
145 | STATIC UINT32 mExportRVA[PRM_MODULE_EXPORT_SYMBOL_NUM];\r | |
146 | STATIC UINT32 mExportSymNum;\r | |
147 | STATIC CHAR8 mExportSymName[PRM_MODULE_EXPORT_SYMBOL_NUM][PRM_HANDLER_NAME_MAXIMUM_LENGTH];\r | |
148 | \r | |
f51461c8 LG |
149 | //\r |
150 | // Initialization Function\r | |
151 | //\r | |
152 | BOOLEAN\r | |
153 | InitializeElf64 (\r | |
154 | UINT8 *FileBuffer,\r | |
155 | ELF_FUNCTION_TABLE *ElfFunctions\r | |
156 | )\r | |
157 | {\r | |
158 | //\r | |
159 | // Initialize data pointer and structures.\r | |
160 | //\r | |
161 | VerboseMsg ("Set EHDR");\r | |
162 | mEhdr = (Elf_Ehdr*) FileBuffer;\r | |
163 | \r | |
164 | //\r | |
165 | // Check the ELF64 specific header information.\r | |
166 | //\r | |
167 | VerboseMsg ("Check ELF64 Header Information");\r | |
168 | if (mEhdr->e_ident[EI_CLASS] != ELFCLASS64) {\r | |
169 | Error (NULL, 0, 3000, "Unsupported", "ELF EI_DATA not ELFCLASS64");\r | |
170 | return FALSE;\r | |
171 | }\r | |
172 | if (mEhdr->e_ident[EI_DATA] != ELFDATA2LSB) {\r | |
173 | Error (NULL, 0, 3000, "Unsupported", "ELF EI_DATA not ELFDATA2LSB");\r | |
174 | return FALSE;\r | |
175 | }\r | |
176 | if ((mEhdr->e_type != ET_EXEC) && (mEhdr->e_type != ET_DYN)) {\r | |
177 | Error (NULL, 0, 3000, "Unsupported", "ELF e_type not ET_EXEC or ET_DYN");\r | |
178 | return FALSE;\r | |
179 | }\r | |
ad1db975 | 180 | if (!((mEhdr->e_machine == EM_X86_64) || (mEhdr->e_machine == EM_AARCH64) || (mEhdr->e_machine == EM_RISCV64))) {\r |
251f9b39 | 181 | Warning (NULL, 0, 3000, "Unsupported", "ELF e_machine is not Elf64 machine.");\r |
f51461c8 LG |
182 | }\r |
183 | if (mEhdr->e_version != EV_CURRENT) {\r | |
184 | Error (NULL, 0, 3000, "Unsupported", "ELF e_version (%u) not EV_CURRENT (%d)", (unsigned) mEhdr->e_version, EV_CURRENT);\r | |
185 | return FALSE;\r | |
186 | }\r | |
187 | \r | |
414cd2a4 | 188 | if (mExportFlag) {\r |
1ee16228 JM |
189 | if ((mEhdr->e_machine != EM_X86_64) && (mEhdr->e_machine != EM_AARCH64)) {\r |
190 | Error (NULL, 0, 3000, "Unsupported", "--prm option currently only supports X64 and AArch64 archs.");\r | |
414cd2a4 HLX |
191 | return FALSE;\r |
192 | }\r | |
193 | }\r | |
194 | \r | |
f51461c8 LG |
195 | //\r |
196 | // Update section header pointers\r | |
197 | //\r | |
198 | VerboseMsg ("Update Header Pointers");\r | |
199 | mShdrBase = (Elf_Shdr *)((UINT8 *)mEhdr + mEhdr->e_shoff);\r | |
200 | mPhdrBase = (Elf_Phdr *)((UINT8 *)mEhdr + mEhdr->e_phoff);\r | |
201 | \r | |
202 | //\r | |
203 | // Create COFF Section offset buffer and zero.\r | |
204 | //\r | |
205 | VerboseMsg ("Create COFF Section Offset Buffer");\r | |
206 | mCoffSectionsOffset = (UINT32 *)malloc(mEhdr->e_shnum * sizeof (UINT32));\r | |
06b45735 HW |
207 | if (mCoffSectionsOffset == NULL) {\r |
208 | Error (NULL, 0, 4001, "Resource", "memory cannot be allocated!");\r | |
209 | return FALSE;\r | |
210 | }\r | |
f51461c8 LG |
211 | memset(mCoffSectionsOffset, 0, mEhdr->e_shnum * sizeof(UINT32));\r |
212 | \r | |
213 | //\r | |
214 | // Fill in function pointers.\r | |
215 | //\r | |
216 | VerboseMsg ("Fill in Function Pointers");\r | |
217 | ElfFunctions->ScanSections = ScanSections64;\r | |
218 | ElfFunctions->WriteSections = WriteSections64;\r | |
219 | ElfFunctions->WriteRelocations = WriteRelocations64;\r | |
220 | ElfFunctions->WriteDebug = WriteDebug64;\r | |
221 | ElfFunctions->SetImageSize = SetImageSize64;\r | |
222 | ElfFunctions->CleanUp = CleanUp64;\r | |
223 | \r | |
414cd2a4 HLX |
224 | if (mExportFlag) {\r |
225 | mCoffNbrSections ++;\r | |
226 | ElfFunctions->WriteExport = WriteExport64;\r | |
227 | }\r | |
228 | \r | |
f51461c8 LG |
229 | return TRUE;\r |
230 | }\r | |
231 | \r | |
232 | \r | |
233 | //\r | |
234 | // Header by Index functions\r | |
235 | //\r | |
236 | STATIC\r | |
237 | Elf_Shdr*\r | |
238 | GetShdrByIndex (\r | |
239 | UINT32 Num\r | |
240 | )\r | |
241 | {\r | |
17751c5f ML |
242 | if (Num >= mEhdr->e_shnum) {\r |
243 | Error (NULL, 0, 3000, "Invalid", "GetShdrByIndex: Index %u is too high.", Num);\r | |
244 | exit(EXIT_FAILURE);\r | |
245 | }\r | |
246 | \r | |
f51461c8 LG |
247 | return (Elf_Shdr*)((UINT8*)mShdrBase + Num * mEhdr->e_shentsize);\r |
248 | }\r | |
249 | \r | |
250 | STATIC\r | |
251 | UINT32\r | |
252 | CoffAlign (\r | |
253 | UINT32 Offset\r | |
254 | )\r | |
255 | {\r | |
256 | return (Offset + mCoffAlignment - 1) & ~(mCoffAlignment - 1);\r | |
257 | }\r | |
258 | \r | |
4f7d5c67 AB |
259 | STATIC\r |
260 | UINT32\r | |
261 | DebugRvaAlign (\r | |
262 | UINT32 Offset\r | |
263 | )\r | |
264 | {\r | |
265 | return (Offset + 3) & ~3;\r | |
266 | }\r | |
267 | \r | |
f51461c8 LG |
268 | //\r |
269 | // filter functions\r | |
270 | //\r | |
271 | STATIC\r | |
272 | BOOLEAN\r | |
273 | IsTextShdr (\r | |
274 | Elf_Shdr *Shdr\r | |
275 | )\r | |
276 | {\r | |
1b380aa6 LG |
277 | return (BOOLEAN) (((Shdr->sh_flags & (SHF_EXECINSTR | SHF_ALLOC)) == (SHF_EXECINSTR | SHF_ALLOC)) ||\r |
278 | ((Shdr->sh_flags & (SHF_WRITE | SHF_ALLOC)) == SHF_ALLOC));\r | |
f51461c8 LG |
279 | }\r |
280 | \r | |
281 | STATIC\r | |
282 | BOOLEAN\r | |
283 | IsHiiRsrcShdr (\r | |
284 | Elf_Shdr *Shdr\r | |
285 | )\r | |
286 | {\r | |
287 | Elf_Shdr *Namedr = GetShdrByIndex(mEhdr->e_shstrndx);\r | |
288 | \r | |
289 | return (BOOLEAN) (strcmp((CHAR8*)mEhdr + Namedr->sh_offset + Shdr->sh_name, ELF_HII_SECTION_NAME) == 0);\r | |
290 | }\r | |
291 | \r | |
414cd2a4 HLX |
292 | STATIC\r |
293 | BOOLEAN\r | |
294 | IsSymbolShdr (\r | |
295 | Elf_Shdr *Shdr\r | |
296 | )\r | |
297 | {\r | |
298 | Elf_Shdr *Namehdr = GetShdrByIndex(mEhdr->e_shstrndx);\r | |
299 | \r | |
300 | return (BOOLEAN) (strcmp((CHAR8*)mEhdr + Namehdr->sh_offset + Shdr->sh_name, ELF_SYMBOL_SECTION_NAME) == 0);\r | |
301 | }\r | |
302 | \r | |
f51461c8 LG |
303 | STATIC\r |
304 | BOOLEAN\r | |
305 | IsDataShdr (\r | |
306 | Elf_Shdr *Shdr\r | |
307 | )\r | |
308 | {\r | |
309 | if (IsHiiRsrcShdr(Shdr)) {\r | |
310 | return FALSE;\r | |
311 | }\r | |
c6b872c6 | 312 | return (BOOLEAN) (Shdr->sh_flags & (SHF_EXECINSTR | SHF_WRITE | SHF_ALLOC)) == (SHF_ALLOC | SHF_WRITE);\r |
f51461c8 LG |
313 | }\r |
314 | \r | |
621bb723 ML |
315 | STATIC\r |
316 | BOOLEAN\r | |
317 | IsStrtabShdr (\r | |
318 | Elf_Shdr *Shdr\r | |
319 | )\r | |
320 | {\r | |
321 | Elf_Shdr *Namedr = GetShdrByIndex(mEhdr->e_shstrndx);\r | |
322 | \r | |
323 | return (BOOLEAN) (strcmp((CHAR8*)mEhdr + Namedr->sh_offset + Shdr->sh_name, ELF_STRTAB_SECTION_NAME) == 0);\r | |
324 | }\r | |
325 | \r | |
326 | STATIC\r | |
327 | Elf_Shdr *\r | |
328 | FindStrtabShdr (\r | |
329 | VOID\r | |
330 | )\r | |
331 | {\r | |
332 | UINT32 i;\r | |
333 | for (i = 0; i < mEhdr->e_shnum; i++) {\r | |
334 | Elf_Shdr *shdr = GetShdrByIndex(i);\r | |
335 | if (IsStrtabShdr(shdr)) {\r | |
336 | return shdr;\r | |
337 | }\r | |
338 | }\r | |
339 | return NULL;\r | |
340 | }\r | |
341 | \r | |
342 | STATIC\r | |
343 | const UINT8 *\r | |
344 | GetSymName (\r | |
345 | Elf_Sym *Sym\r | |
346 | )\r | |
347 | {\r | |
7be7b25d HW |
348 | Elf_Shdr *StrtabShdr;\r |
349 | UINT8 *StrtabContents;\r | |
350 | BOOLEAN foundEnd;\r | |
351 | UINT32 i;\r | |
352 | \r | |
621bb723 ML |
353 | if (Sym->st_name == 0) {\r |
354 | return NULL;\r | |
355 | }\r | |
356 | \r | |
7be7b25d | 357 | StrtabShdr = FindStrtabShdr();\r |
621bb723 ML |
358 | if (StrtabShdr == NULL) {\r |
359 | return NULL;\r | |
360 | }\r | |
361 | \r | |
362 | assert(Sym->st_name < StrtabShdr->sh_size);\r | |
363 | \r | |
7be7b25d | 364 | StrtabContents = (UINT8*)mEhdr + StrtabShdr->sh_offset;\r |
ea3e924a | 365 | \r |
7be7b25d | 366 | foundEnd = FALSE;\r |
a754c70c | 367 | for (i= Sym->st_name; (i < StrtabShdr->sh_size) && !foundEnd; i++) {\r |
7be7b25d | 368 | foundEnd = (BOOLEAN)(StrtabContents[i] == 0);\r |
ea3e924a ML |
369 | }\r |
370 | assert(foundEnd);\r | |
371 | \r | |
372 | return StrtabContents + Sym->st_name;\r | |
621bb723 ML |
373 | }\r |
374 | \r | |
414cd2a4 HLX |
375 | //\r |
376 | // Get Prm Handler number and name\r | |
377 | //\r | |
378 | STATIC\r | |
379 | VOID\r | |
380 | FindPrmHandler (\r | |
381 | UINT64 Offset\r | |
382 | )\r | |
383 | {\r | |
384 | PRM_MODULE_EXPORT_DESCRIPTOR_STRUCT_HEADER *PrmExport;\r | |
385 | PRM_HANDLER_EXPORT_DESCRIPTOR_STRUCT *PrmHandler;\r | |
386 | UINT32 HandlerNum;\r | |
387 | \r | |
388 | PrmExport = (PRM_MODULE_EXPORT_DESCRIPTOR_STRUCT_HEADER*)((UINT8*)mEhdr + Offset);\r | |
389 | PrmHandler = (PRM_HANDLER_EXPORT_DESCRIPTOR_STRUCT *)(PrmExport + 1);\r | |
390 | \r | |
391 | for (HandlerNum = 0; HandlerNum < PrmExport->NumberPrmHandlers; HandlerNum++) {\r | |
392 | strcpy(mExportSymName[mExportSymNum], PrmHandler->PrmHandlerName);\r | |
393 | mExportSymNum ++;\r | |
394 | PrmHandler += 1;\r | |
395 | \r | |
396 | //\r | |
397 | // Check if PRM handler number is larger than (PRM_MODULE_EXPORT_SYMBOL_NUM - 1)\r | |
398 | //\r | |
399 | if (mExportSymNum >= (PRM_MODULE_EXPORT_SYMBOL_NUM - 1)) {\r | |
400 | Error (NULL, 0, 3000, "Invalid", "FindPrmHandler: Number %u is too high.", mExportSymNum);\r | |
401 | exit(EXIT_FAILURE);\r | |
402 | }\r | |
403 | }\r | |
404 | }\r | |
405 | \r | |
ecbaa856 Z |
406 | //\r |
407 | // Find the ELF section hosting the GOT from an ELF Rva\r | |
408 | // of a single GOT entry. Normally, GOT is placed in\r | |
409 | // ELF .text section, so assume once we find in which\r | |
410 | // section the GOT is, all GOT entries are there, and\r | |
411 | // just verify this.\r | |
412 | //\r | |
413 | STATIC\r | |
414 | VOID\r | |
415 | FindElfGOTSectionFromGOTEntryElfRva (\r | |
416 | Elf64_Addr GOTEntryElfRva\r | |
417 | )\r | |
418 | {\r | |
419 | UINT32 i;\r | |
420 | if (mGOTShdr != NULL) {\r | |
421 | if (GOTEntryElfRva >= mGOTShdr->sh_addr &&\r | |
422 | GOTEntryElfRva < mGOTShdr->sh_addr + mGOTShdr->sh_size) {\r | |
423 | return;\r | |
424 | }\r | |
425 | Error (NULL, 0, 3000, "Unsupported", "FindElfGOTSectionFromGOTEntryElfRva: GOT entries found in multiple sections.");\r | |
426 | exit(EXIT_FAILURE);\r | |
427 | }\r | |
428 | for (i = 0; i < mEhdr->e_shnum; i++) {\r | |
429 | Elf_Shdr *shdr = GetShdrByIndex(i);\r | |
430 | if (GOTEntryElfRva >= shdr->sh_addr &&\r | |
431 | GOTEntryElfRva < shdr->sh_addr + shdr->sh_size) {\r | |
432 | mGOTShdr = shdr;\r | |
433 | mGOTShindex = i;\r | |
434 | return;\r | |
435 | }\r | |
436 | }\r | |
437 | Error (NULL, 0, 3000, "Invalid", "FindElfGOTSectionFromGOTEntryElfRva: ElfRva 0x%016LX for GOT entry not found in any section.", GOTEntryElfRva);\r | |
438 | exit(EXIT_FAILURE);\r | |
439 | }\r | |
440 | \r | |
441 | //\r | |
442 | // Stores locations of GOT entries in COFF image.\r | |
443 | // Returns TRUE if GOT entry is new.\r | |
444 | // Simple implementation as number of GOT\r | |
445 | // entries is expected to be low.\r | |
446 | //\r | |
447 | \r | |
448 | STATIC\r | |
449 | BOOLEAN\r | |
450 | AccumulateCoffGOTEntries (\r | |
451 | UINT32 GOTCoffEntry\r | |
452 | )\r | |
453 | {\r | |
454 | UINT32 i;\r | |
455 | if (mGOTCoffEntries != NULL) {\r | |
456 | for (i = 0; i < mGOTNumCoffEntries; i++) {\r | |
457 | if (mGOTCoffEntries[i] == GOTCoffEntry) {\r | |
458 | return FALSE;\r | |
459 | }\r | |
460 | }\r | |
461 | }\r | |
462 | if (mGOTCoffEntries == NULL) {\r | |
463 | mGOTCoffEntries = (UINT32*)malloc(5 * sizeof *mGOTCoffEntries);\r | |
464 | if (mGOTCoffEntries == NULL) {\r | |
465 | Error (NULL, 0, 4001, "Resource", "memory cannot be allocated!");\r | |
466 | }\r | |
467 | assert (mGOTCoffEntries != NULL);\r | |
468 | mGOTMaxCoffEntries = 5;\r | |
469 | mGOTNumCoffEntries = 0;\r | |
470 | } else if (mGOTNumCoffEntries == mGOTMaxCoffEntries) {\r | |
471 | mGOTCoffEntries = (UINT32*)realloc(mGOTCoffEntries, 2 * mGOTMaxCoffEntries * sizeof *mGOTCoffEntries);\r | |
472 | if (mGOTCoffEntries == NULL) {\r | |
473 | Error (NULL, 0, 4001, "Resource", "memory cannot be allocated!");\r | |
474 | }\r | |
475 | assert (mGOTCoffEntries != NULL);\r | |
476 | mGOTMaxCoffEntries += mGOTMaxCoffEntries;\r | |
477 | }\r | |
478 | mGOTCoffEntries[mGOTNumCoffEntries++] = GOTCoffEntry;\r | |
479 | return TRUE;\r | |
480 | }\r | |
481 | \r | |
482 | //\r | |
483 | // 32-bit Unsigned integer comparator for qsort.\r | |
484 | //\r | |
485 | STATIC\r | |
486 | int\r | |
487 | UINT32Comparator (\r | |
488 | const void* lhs,\r | |
489 | const void* rhs\r | |
490 | )\r | |
491 | {\r | |
492 | if (*(const UINT32*)lhs < *(const UINT32*)rhs) {\r | |
493 | return -1;\r | |
494 | }\r | |
495 | return *(const UINT32*)lhs > *(const UINT32*)rhs;\r | |
496 | }\r | |
497 | \r | |
498 | //\r | |
499 | // Emit accumulated Coff GOT entry relocations into\r | |
500 | // Coff image. This function performs its job\r | |
501 | // once and then releases the entry list, so\r | |
502 | // it can safely be called multiple times.\r | |
503 | //\r | |
504 | STATIC\r | |
505 | VOID\r | |
506 | EmitGOTRelocations (\r | |
507 | VOID\r | |
508 | )\r | |
509 | {\r | |
510 | UINT32 i;\r | |
511 | if (mGOTCoffEntries == NULL) {\r | |
512 | return;\r | |
513 | }\r | |
514 | //\r | |
515 | // Emit Coff relocations with Rvas ordered.\r | |
516 | //\r | |
517 | qsort(\r | |
518 | mGOTCoffEntries,\r | |
519 | mGOTNumCoffEntries,\r | |
520 | sizeof *mGOTCoffEntries,\r | |
521 | UINT32Comparator);\r | |
522 | for (i = 0; i < mGOTNumCoffEntries; i++) {\r | |
523 | VerboseMsg ("EFI_IMAGE_REL_BASED_DIR64 Offset: 0x%08X", mGOTCoffEntries[i]);\r | |
524 | CoffAddFixup(\r | |
525 | mGOTCoffEntries[i],\r | |
526 | EFI_IMAGE_REL_BASED_DIR64);\r | |
527 | }\r | |
528 | free(mGOTCoffEntries);\r | |
529 | mGOTCoffEntries = NULL;\r | |
530 | mGOTMaxCoffEntries = 0;\r | |
531 | mGOTNumCoffEntries = 0;\r | |
532 | }\r | |
ad1db975 AC |
533 | //\r |
534 | // RISC-V 64 specific Elf WriteSection function.\r | |
535 | //\r | |
536 | STATIC\r | |
537 | VOID\r | |
538 | WriteSectionRiscV64 (\r | |
539 | Elf_Rela *Rel,\r | |
540 | UINT8 *Targ,\r | |
541 | Elf_Shdr *SymShdr,\r | |
542 | Elf_Sym *Sym\r | |
543 | )\r | |
544 | {\r | |
545 | UINT32 Value;\r | |
546 | UINT32 Value2;\r | |
abfff7c4 | 547 | Elf64_Addr GOTEntryRva;\r |
ad1db975 AC |
548 | \r |
549 | switch (ELF_R_TYPE(Rel->r_info)) {\r | |
550 | case R_RISCV_NONE:\r | |
551 | break;\r | |
552 | \r | |
553 | case R_RISCV_32:\r | |
abfff7c4 | 554 | *(UINT64 *)Targ = Sym->st_value + Rel->r_addend;\r |
ad1db975 AC |
555 | break;\r |
556 | \r | |
557 | case R_RISCV_64:\r | |
abfff7c4 | 558 | *(UINT64 *)Targ = Sym->st_value + Rel->r_addend;\r |
ad1db975 AC |
559 | break;\r |
560 | \r | |
561 | case R_RISCV_HI20:\r | |
562 | mRiscVPass1Targ = Targ;\r | |
563 | mRiscVPass1Sym = SymShdr;\r | |
564 | mRiscVPass1SymSecIndex = Sym->st_shndx;\r | |
565 | break;\r | |
566 | \r | |
567 | case R_RISCV_LO12_I:\r | |
568 | if (mRiscVPass1Sym == SymShdr && mRiscVPass1Targ != NULL && mRiscVPass1SymSecIndex == Sym->st_shndx && mRiscVPass1SymSecIndex != 0) {\r | |
569 | Value = (UINT32)(RV_X(*(UINT32 *)mRiscVPass1Targ, 12, 20) << 12);\r | |
570 | Value2 = (UINT32)(RV_X(*(UINT32 *)Targ, 20, 12));\r | |
571 | if (Value2 & (RISCV_IMM_REACH/2)) {\r | |
572 | Value2 |= ~(RISCV_IMM_REACH-1);\r | |
573 | }\r | |
574 | Value += Value2;\r | |
575 | Value = Value - (UINT32)SymShdr->sh_addr + mCoffSectionsOffset[Sym->st_shndx];\r | |
576 | Value2 = RISCV_CONST_HIGH_PART (Value);\r | |
577 | *(UINT32 *)mRiscVPass1Targ = (RV_X (Value2, 12, 20) << 12) | \\r | |
578 | (RV_X (*(UINT32 *)mRiscVPass1Targ, 0, 12));\r | |
579 | *(UINT32 *)Targ = (RV_X (Value, 0, 12) << 20) | \\r | |
580 | (RV_X (*(UINT32 *)Targ, 0, 20));\r | |
581 | }\r | |
582 | mRiscVPass1Sym = NULL;\r | |
583 | mRiscVPass1Targ = NULL;\r | |
584 | mRiscVPass1SymSecIndex = 0;\r | |
585 | break;\r | |
586 | \r | |
587 | case R_RISCV_LO12_S:\r | |
588 | if (mRiscVPass1Sym == SymShdr && mRiscVPass1Targ != NULL && mRiscVPass1SymSecIndex == Sym->st_shndx && mRiscVPass1SymSecIndex != 0) {\r | |
589 | Value = (UINT32)(RV_X(*(UINT32 *)mRiscVPass1Targ, 12, 20) << 12);\r | |
590 | Value2 = (UINT32)(RV_X(*(UINT32 *)Targ, 7, 5) | (RV_X(*(UINT32 *)Targ, 25, 7) << 5));\r | |
591 | if (Value2 & (RISCV_IMM_REACH/2)) {\r | |
592 | Value2 |= ~(RISCV_IMM_REACH-1);\r | |
593 | }\r | |
594 | Value += Value2;\r | |
595 | Value = Value - (UINT32)SymShdr->sh_addr + mCoffSectionsOffset[Sym->st_shndx];\r | |
596 | Value2 = RISCV_CONST_HIGH_PART (Value);\r | |
597 | *(UINT32 *)mRiscVPass1Targ = (RV_X (Value2, 12, 20) << 12) | \\r | |
598 | (RV_X (*(UINT32 *)mRiscVPass1Targ, 0, 12));\r | |
599 | Value2 = *(UINT32 *)Targ & 0x01fff07f;\r | |
600 | Value &= RISCV_IMM_REACH - 1;\r | |
601 | *(UINT32 *)Targ = Value2 | (UINT32)(((RV_X(Value, 0, 5) << 7) | (RV_X(Value, 5, 7) << 25)));\r | |
602 | }\r | |
603 | mRiscVPass1Sym = NULL;\r | |
604 | mRiscVPass1Targ = NULL;\r | |
605 | mRiscVPass1SymSecIndex = 0;\r | |
606 | break;\r | |
607 | \r | |
abfff7c4 S |
608 | case R_RISCV_GOT_HI20:\r |
609 | GOTEntryRva = (Sym->st_value - Rel->r_offset);\r | |
610 | mRiscVPass1Offset = RV_X(GOTEntryRva, 0, 12);\r | |
611 | Value = (UINT32)RV_X(GOTEntryRva, 12, 20);\r | |
612 | *(UINT32 *)Targ = (Value << 12) | (RV_X(*(UINT32*)Targ, 0, 12));\r | |
613 | \r | |
614 | mRiscVPass1Targ = Targ;\r | |
615 | mRiscVPass1Sym = SymShdr;\r | |
616 | mRiscVPass1SymSecIndex = Sym->st_shndx;\r | |
617 | mRiscVPass1GotFixup = 1;\r | |
618 | break;\r | |
619 | \r | |
ad1db975 AC |
620 | case R_RISCV_PCREL_HI20:\r |
621 | mRiscVPass1Targ = Targ;\r | |
622 | mRiscVPass1Sym = SymShdr;\r | |
623 | mRiscVPass1SymSecIndex = Sym->st_shndx;\r | |
624 | \r | |
625 | Value = (UINT32)(RV_X(*(UINT32 *)mRiscVPass1Targ, 12, 20));\r | |
626 | break;\r | |
627 | \r | |
c32c5911 S |
628 | case R_RISCV_PCREL_LO12_S:\r |
629 | if (mRiscVPass1Targ != NULL && mRiscVPass1Sym != NULL && mRiscVPass1SymSecIndex != 0) {\r | |
630 | int i;\r | |
631 | Value2 = (UINT32)(RV_X(*(UINT32 *)mRiscVPass1Targ, 12, 20));\r | |
632 | \r | |
633 | Value = ((UINT32)(RV_X(*(UINT32 *)Targ, 25, 7)) << 5);\r | |
634 | Value = (Value | (UINT32)(RV_X(*(UINT32 *)Targ, 7, 5)));\r | |
635 | \r | |
636 | if(Value & (RISCV_IMM_REACH/2)) {\r | |
637 | Value |= ~(RISCV_IMM_REACH-1);\r | |
638 | }\r | |
639 | Value = Value - (UINT32)mRiscVPass1Sym->sh_addr + mCoffSectionsOffset[mRiscVPass1SymSecIndex];\r | |
640 | \r | |
641 | if(-2048 > (INT32)Value) {\r | |
642 | i = (((INT32)Value * -1) / 4096);\r | |
643 | Value2 -= i;\r | |
644 | Value += 4096 * i;\r | |
645 | if(-2048 > (INT32)Value) {\r | |
646 | Value2 -= 1;\r | |
647 | Value += 4096;\r | |
648 | }\r | |
649 | }\r | |
650 | else if( 2047 < (INT32)Value) {\r | |
651 | i = (Value / 4096);\r | |
652 | Value2 += i;\r | |
653 | Value -= 4096 * i;\r | |
654 | if(2047 < (INT32)Value) {\r | |
655 | Value2 += 1;\r | |
656 | Value -= 4096;\r | |
657 | }\r | |
658 | }\r | |
659 | \r | |
660 | // Update the IMM of SD instruction\r | |
661 | //\r | |
662 | // |31 25|24 20|19 15|14 12 |11 7|6 0|\r | |
663 | // |-------------------------------------------|-------|\r | |
664 | // |imm[11:5] | rs2 | rs1 | funct3 |imm[4:0] | opcode|\r | |
665 | // ---------------------------------------------------\r | |
666 | \r | |
667 | // First Zero out current IMM\r | |
668 | *(UINT32 *)Targ &= ~0xfe000f80;\r | |
669 | \r | |
670 | // Update with new IMM\r | |
671 | *(UINT32 *)Targ |= (RV_X(Value, 5, 7) << 25);\r | |
672 | *(UINT32 *)Targ |= (RV_X(Value, 0, 5) << 7);\r | |
673 | \r | |
674 | // Update previous instruction\r | |
675 | *(UINT32 *)mRiscVPass1Targ = (RV_X(Value2, 0, 20)<<12) | (RV_X(*(UINT32 *)mRiscVPass1Targ, 0, 12));\r | |
676 | }\r | |
677 | mRiscVPass1Sym = NULL;\r | |
678 | mRiscVPass1Targ = NULL;\r | |
679 | mRiscVPass1SymSecIndex = 0;\r | |
680 | break;\r | |
681 | \r | |
ad1db975 AC |
682 | case R_RISCV_PCREL_LO12_I:\r |
683 | if (mRiscVPass1Targ != NULL && mRiscVPass1Sym != NULL && mRiscVPass1SymSecIndex != 0) {\r | |
684 | int i;\r | |
685 | Value2 = (UINT32)(RV_X(*(UINT32 *)mRiscVPass1Targ, 12, 20));\r | |
abfff7c4 S |
686 | \r |
687 | if(mRiscVPass1GotFixup) {\r | |
688 | Value = (UINT32)(mRiscVPass1Offset);\r | |
689 | } else {\r | |
690 | Value = (UINT32)(RV_X(*(UINT32 *)Targ, 20, 12));\r | |
691 | if(Value & (RISCV_IMM_REACH/2)) {\r | |
692 | Value |= ~(RISCV_IMM_REACH-1);\r | |
693 | }\r | |
ad1db975 AC |
694 | }\r |
695 | Value = Value - (UINT32)mRiscVPass1Sym->sh_addr + mCoffSectionsOffset[mRiscVPass1SymSecIndex];\r | |
abfff7c4 | 696 | \r |
ad1db975 AC |
697 | if(-2048 > (INT32)Value) {\r |
698 | i = (((INT32)Value * -1) / 4096);\r | |
699 | Value2 -= i;\r | |
700 | Value += 4096 * i;\r | |
701 | if(-2048 > (INT32)Value) {\r | |
702 | Value2 -= 1;\r | |
703 | Value += 4096;\r | |
704 | }\r | |
705 | }\r | |
706 | else if( 2047 < (INT32)Value) {\r | |
707 | i = (Value / 4096);\r | |
708 | Value2 += i;\r | |
709 | Value -= 4096 * i;\r | |
710 | if(2047 < (INT32)Value) {\r | |
711 | Value2 += 1;\r | |
712 | Value -= 4096;\r | |
713 | }\r | |
714 | }\r | |
715 | \r | |
abfff7c4 S |
716 | if(mRiscVPass1GotFixup) {\r |
717 | *(UINT32 *)Targ = (RV_X((UINT32)Value, 0, 12) << 20)\r | |
718 | | (RV_X(*(UINT32*)Targ, 0, 20));\r | |
719 | // Convert LD instruction to ADDI\r | |
720 | //\r | |
721 | // |31 20|19 15|14 12|11 7|6 0|\r | |
722 | // |-----------------------------------------|\r | |
723 | // |imm[11:0] | rs1 | 011 | rd | 0000011 | LD\r | |
724 | // -----------------------------------------\r | |
725 | \r | |
726 | // |-----------------------------------------|\r | |
727 | // |imm[11:0] | rs1 | 000 | rd | 0010011 | ADDI\r | |
728 | // -----------------------------------------\r | |
729 | \r | |
730 | // To convert, let's first reset bits 12-14 and 0-6 using ~0x707f\r | |
731 | // Then modify the opcode to ADDI (0010011)\r | |
732 | // All other fields will remain same.\r | |
733 | \r | |
734 | *(UINT32 *)Targ = ((*(UINT32 *)Targ & ~0x707f) | 0x13);\r | |
735 | } else {\r | |
736 | *(UINT32 *)Targ = (RV_X(Value, 0, 12) << 20) | (RV_X(*(UINT32*)Targ, 0, 20));\r | |
737 | }\r | |
ad1db975 AC |
738 | *(UINT32 *)mRiscVPass1Targ = (RV_X(Value2, 0, 20)<<12) | (RV_X(*(UINT32 *)mRiscVPass1Targ, 0, 12));\r |
739 | }\r | |
740 | mRiscVPass1Sym = NULL;\r | |
741 | mRiscVPass1Targ = NULL;\r | |
742 | mRiscVPass1SymSecIndex = 0;\r | |
abfff7c4 S |
743 | mRiscVPass1Offset = 0;\r |
744 | mRiscVPass1GotFixup = 0;\r | |
ad1db975 AC |
745 | break;\r |
746 | \r | |
747 | case R_RISCV_ADD64:\r | |
748 | case R_RISCV_SUB64:\r | |
749 | case R_RISCV_ADD32:\r | |
750 | case R_RISCV_SUB32:\r | |
751 | case R_RISCV_BRANCH:\r | |
752 | case R_RISCV_JAL:\r | |
753 | case R_RISCV_GPREL_I:\r | |
754 | case R_RISCV_GPREL_S:\r | |
755 | case R_RISCV_CALL:\r | |
abfff7c4 | 756 | case R_RISCV_CALL_PLT:\r |
ad1db975 AC |
757 | case R_RISCV_RVC_BRANCH:\r |
758 | case R_RISCV_RVC_JUMP:\r | |
759 | case R_RISCV_RELAX:\r | |
760 | case R_RISCV_SUB6:\r | |
761 | case R_RISCV_SET6:\r | |
762 | case R_RISCV_SET8:\r | |
763 | case R_RISCV_SET16:\r | |
764 | case R_RISCV_SET32:\r | |
765 | break;\r | |
766 | \r | |
767 | default:\r | |
768 | Error (NULL, 0, 3000, "Invalid", "WriteSections64(): %s unsupported ELF EM_RISCV64 relocation 0x%x.", mInImageName, (unsigned) ELF_R_TYPE(Rel->r_info));\r | |
769 | }\r | |
770 | }\r | |
ecbaa856 | 771 | \r |
f51461c8 LG |
772 | //\r |
773 | // Elf functions interface implementation\r | |
774 | //\r | |
775 | \r | |
776 | STATIC\r | |
777 | VOID\r | |
778 | ScanSections64 (\r | |
779 | VOID\r | |
780 | )\r | |
781 | {\r | |
782 | UINT32 i;\r | |
783 | EFI_IMAGE_DOS_HEADER *DosHdr;\r | |
784 | EFI_IMAGE_OPTIONAL_HEADER_UNION *NtHdr;\r | |
785 | UINT32 CoffEntry;\r | |
786 | UINT32 SectionCount;\r | |
234f9ff9 | 787 | BOOLEAN FoundSection;\r |
414cd2a4 | 788 | UINT32 Offset;\r |
f51461c8 LG |
789 | \r |
790 | CoffEntry = 0;\r | |
791 | mCoffOffset = 0;\r | |
f51461c8 LG |
792 | \r |
793 | //\r | |
794 | // Coff file start with a DOS header.\r | |
795 | //\r | |
796 | mCoffOffset = sizeof(EFI_IMAGE_DOS_HEADER) + 0x40;\r | |
797 | mNtHdrOffset = mCoffOffset;\r | |
798 | switch (mEhdr->e_machine) {\r | |
799 | case EM_X86_64:\r | |
f51461c8 | 800 | case EM_AARCH64:\r |
ad1db975 | 801 | case EM_RISCV64:\r |
f51461c8 LG |
802 | mCoffOffset += sizeof (EFI_IMAGE_NT_HEADERS64);\r |
803 | break;\r | |
804 | default:\r | |
ea3e924a | 805 | VerboseMsg ("%s unknown e_machine type %hu. Assume X64", mInImageName, mEhdr->e_machine);\r |
f51461c8 LG |
806 | mCoffOffset += sizeof (EFI_IMAGE_NT_HEADERS64);\r |
807 | break;\r | |
808 | }\r | |
809 | \r | |
810 | mTableOffset = mCoffOffset;\r | |
811 | mCoffOffset += mCoffNbrSections * sizeof(EFI_IMAGE_SECTION_HEADER);\r | |
812 | \r | |
54b1b57a AB |
813 | //\r |
814 | // Set mCoffAlignment to the maximum alignment of the input sections\r | |
815 | // we care about\r | |
816 | //\r | |
817 | for (i = 0; i < mEhdr->e_shnum; i++) {\r | |
818 | Elf_Shdr *shdr = GetShdrByIndex(i);\r | |
819 | if (shdr->sh_addralign <= mCoffAlignment) {\r | |
820 | continue;\r | |
821 | }\r | |
822 | if (IsTextShdr(shdr) || IsDataShdr(shdr) || IsHiiRsrcShdr(shdr)) {\r | |
823 | mCoffAlignment = (UINT32)shdr->sh_addralign;\r | |
824 | }\r | |
825 | }\r | |
826 | \r | |
3f021800 YF |
827 | //\r |
828 | // Check if mCoffAlignment is larger than MAX_COFF_ALIGNMENT\r | |
829 | //\r | |
830 | if (mCoffAlignment > MAX_COFF_ALIGNMENT) {\r | |
831 | Error (NULL, 0, 3000, "Invalid", "Section alignment is larger than MAX_COFF_ALIGNMENT.");\r | |
832 | assert (FALSE);\r | |
833 | }\r | |
834 | \r | |
835 | \r | |
02a5421f AB |
836 | //\r |
837 | // Move the PE/COFF header right before the first section. This will help us\r | |
838 | // save space when converting to TE.\r | |
839 | //\r | |
840 | if (mCoffAlignment > mCoffOffset) {\r | |
841 | mNtHdrOffset += mCoffAlignment - mCoffOffset;\r | |
842 | mTableOffset += mCoffAlignment - mCoffOffset;\r | |
843 | mCoffOffset = mCoffAlignment;\r | |
844 | }\r | |
845 | \r | |
f51461c8 LG |
846 | //\r |
847 | // First text sections.\r | |
848 | //\r | |
849 | mCoffOffset = CoffAlign(mCoffOffset);\r | |
234f9ff9 EB |
850 | mTextOffset = mCoffOffset;\r |
851 | FoundSection = FALSE;\r | |
f51461c8 LG |
852 | SectionCount = 0;\r |
853 | for (i = 0; i < mEhdr->e_shnum; i++) {\r | |
854 | Elf_Shdr *shdr = GetShdrByIndex(i);\r | |
855 | if (IsTextShdr(shdr)) {\r | |
856 | if ((shdr->sh_addralign != 0) && (shdr->sh_addralign != 1)) {\r | |
857 | // the alignment field is valid\r | |
858 | if ((shdr->sh_addr & (shdr->sh_addralign - 1)) == 0) {\r | |
859 | // if the section address is aligned we must align PE/COFF\r | |
860 | mCoffOffset = (UINT32) ((mCoffOffset + shdr->sh_addralign - 1) & ~(shdr->sh_addralign - 1));\r | |
0c960e86 AB |
861 | } else {\r |
862 | Error (NULL, 0, 3000, "Invalid", "Section address not aligned to its own alignment.");\r | |
f51461c8 LG |
863 | }\r |
864 | }\r | |
865 | \r | |
866 | /* Relocate entry. */\r | |
867 | if ((mEhdr->e_entry >= shdr->sh_addr) &&\r | |
868 | (mEhdr->e_entry < shdr->sh_addr + shdr->sh_size)) {\r | |
869 | CoffEntry = (UINT32) (mCoffOffset + mEhdr->e_entry - shdr->sh_addr);\r | |
870 | }\r | |
871 | \r | |
872 | //\r | |
873 | // Set mTextOffset with the offset of the first '.text' section\r | |
874 | //\r | |
234f9ff9 | 875 | if (!FoundSection) {\r |
f51461c8 | 876 | mTextOffset = mCoffOffset;\r |
234f9ff9 | 877 | FoundSection = TRUE;\r |
f51461c8 LG |
878 | }\r |
879 | \r | |
880 | mCoffSectionsOffset[i] = mCoffOffset;\r | |
881 | mCoffOffset += (UINT32) shdr->sh_size;\r | |
882 | SectionCount ++;\r | |
883 | }\r | |
884 | }\r | |
885 | \r | |
ddb3fdbe | 886 | if (!FoundSection && mOutImageType != FW_ACPI_IMAGE) {\r |
f51461c8 LG |
887 | Error (NULL, 0, 3000, "Invalid", "Did not find any '.text' section.");\r |
888 | assert (FALSE);\r | |
889 | }\r | |
890 | \r | |
4f7d5c67 | 891 | mDebugOffset = DebugRvaAlign(mCoffOffset);\r |
0c960e86 | 892 | mCoffOffset = CoffAlign(mCoffOffset);\r |
f51461c8 LG |
893 | \r |
894 | if (SectionCount > 1 && mOutImageType == FW_EFI_IMAGE) {\r | |
fb0b35e0 | 895 | Warning (NULL, 0, 0, NULL, "Multiple sections in %s are merged into 1 text section. Source level debug might not work correctly.", mInImageName);\r |
f51461c8 LG |
896 | }\r |
897 | \r | |
898 | //\r | |
899 | // Then data sections.\r | |
900 | //\r | |
901 | mDataOffset = mCoffOffset;\r | |
234f9ff9 | 902 | FoundSection = FALSE;\r |
f51461c8 LG |
903 | SectionCount = 0;\r |
904 | for (i = 0; i < mEhdr->e_shnum; i++) {\r | |
905 | Elf_Shdr *shdr = GetShdrByIndex(i);\r | |
906 | if (IsDataShdr(shdr)) {\r | |
907 | if ((shdr->sh_addralign != 0) && (shdr->sh_addralign != 1)) {\r | |
908 | // the alignment field is valid\r | |
909 | if ((shdr->sh_addr & (shdr->sh_addralign - 1)) == 0) {\r | |
910 | // if the section address is aligned we must align PE/COFF\r | |
911 | mCoffOffset = (UINT32) ((mCoffOffset + shdr->sh_addralign - 1) & ~(shdr->sh_addralign - 1));\r | |
0c960e86 AB |
912 | } else {\r |
913 | Error (NULL, 0, 3000, "Invalid", "Section address not aligned to its own alignment.");\r | |
f51461c8 LG |
914 | }\r |
915 | }\r | |
234f9ff9 EB |
916 | \r |
917 | //\r | |
918 | // Set mDataOffset with the offset of the first '.data' section\r | |
919 | //\r | |
920 | if (!FoundSection) {\r | |
921 | mDataOffset = mCoffOffset;\r | |
922 | FoundSection = TRUE;\r | |
923 | }\r | |
f51461c8 LG |
924 | mCoffSectionsOffset[i] = mCoffOffset;\r |
925 | mCoffOffset += (UINT32) shdr->sh_size;\r | |
926 | SectionCount ++;\r | |
927 | }\r | |
928 | }\r | |
0192b71c AB |
929 | \r |
930 | //\r | |
931 | // Make room for .debug data in .data (or .text if .data is empty) instead of\r | |
932 | // putting it in a section of its own. This is explicitly allowed by the\r | |
933 | // PE/COFF spec, and prevents bloat in the binary when using large values for\r | |
934 | // section alignment.\r | |
935 | //\r | |
936 | if (SectionCount > 0) {\r | |
4f7d5c67 | 937 | mDebugOffset = DebugRvaAlign(mCoffOffset);\r |
0192b71c AB |
938 | }\r |
939 | mCoffOffset = mDebugOffset + sizeof(EFI_IMAGE_DEBUG_DIRECTORY_ENTRY) +\r | |
940 | sizeof(EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY) +\r | |
941 | strlen(mInImageName) + 1;\r | |
942 | \r | |
f51461c8 | 943 | mCoffOffset = CoffAlign(mCoffOffset);\r |
0192b71c AB |
944 | if (SectionCount == 0) {\r |
945 | mDataOffset = mCoffOffset;\r | |
946 | }\r | |
f51461c8 LG |
947 | \r |
948 | if (SectionCount > 1 && mOutImageType == FW_EFI_IMAGE) {\r | |
fb0b35e0 | 949 | Warning (NULL, 0, 0, NULL, "Multiple sections in %s are merged into 1 data section. Source level debug might not work correctly.", mInImageName);\r |
f51461c8 LG |
950 | }\r |
951 | \r | |
414cd2a4 HLX |
952 | //\r |
953 | // The Symbol sections.\r | |
954 | //\r | |
955 | if (mExportFlag) {\r | |
956 | UINT32 SymIndex;\r | |
957 | Elf_Sym *Sym;\r | |
958 | UINT64 SymNum;\r | |
959 | const UINT8 *SymName;\r | |
960 | \r | |
961 | mExportOffset = mCoffOffset;\r | |
962 | mExportSize = sizeof(EFI_IMAGE_EXPORT_DIRECTORY) + strlen(mInImageName) + 1;\r | |
963 | \r | |
964 | for (i = 0; i < mEhdr->e_shnum; i++) {\r | |
965 | \r | |
966 | //\r | |
967 | // Determine if this is a symbol section.\r | |
968 | //\r | |
969 | Elf_Shdr *shdr = GetShdrByIndex(i);\r | |
970 | if (!IsSymbolShdr(shdr)) {\r | |
971 | continue;\r | |
972 | }\r | |
973 | \r | |
974 | UINT8 *Symtab = (UINT8*)mEhdr + shdr->sh_offset;\r | |
975 | SymNum = (shdr->sh_size) / (shdr->sh_entsize);\r | |
976 | \r | |
977 | //\r | |
978 | // First Get PrmModuleExportDescriptor\r | |
979 | //\r | |
980 | for (SymIndex = 0; SymIndex < SymNum; SymIndex++) {\r | |
981 | Sym = (Elf_Sym *)(Symtab + SymIndex * shdr->sh_entsize);\r | |
982 | SymName = GetSymName(Sym);\r | |
983 | if (SymName == NULL) {\r | |
984 | continue;\r | |
985 | }\r | |
986 | \r | |
987 | if (strcmp((CHAR8*)SymName, PRM_MODULE_EXPORT_DESCRIPTOR_NAME) == 0) {\r | |
988 | //\r | |
989 | // Find PrmHandler Number and Name\r | |
990 | //\r | |
991 | FindPrmHandler(Sym->st_value);\r | |
992 | \r | |
993 | strcpy(mExportSymName[mExportSymNum], (CHAR8*)SymName);\r | |
994 | mExportRVA[mExportSymNum] = (UINT32)(Sym->st_value);\r | |
995 | mExportSize += 2 * EFI_IMAGE_EXPORT_ADDR_SIZE + EFI_IMAGE_EXPORT_ORDINAL_SIZE + strlen((CHAR8 *)SymName) + 1;\r | |
996 | mExportSymNum ++;\r | |
997 | break;\r | |
998 | }\r | |
999 | }\r | |
1000 | \r | |
1001 | //\r | |
1002 | // Second Get PrmHandler\r | |
1003 | //\r | |
1004 | for (SymIndex = 0; SymIndex < SymNum; SymIndex++) {\r | |
1005 | UINT32 ExpIndex;\r | |
1006 | Sym = (Elf_Sym *)(Symtab + SymIndex * shdr->sh_entsize);\r | |
1007 | SymName = GetSymName(Sym);\r | |
1008 | if (SymName == NULL) {\r | |
1009 | continue;\r | |
1010 | }\r | |
1011 | \r | |
1012 | for (ExpIndex = 0; ExpIndex < (mExportSymNum -1); ExpIndex++) {\r | |
1013 | if (strcmp((CHAR8*)SymName, mExportSymName[ExpIndex]) != 0) {\r | |
1014 | continue;\r | |
1015 | }\r | |
1016 | mExportRVA[ExpIndex] = (UINT32)(Sym->st_value);\r | |
1017 | mExportSize += 2 * EFI_IMAGE_EXPORT_ADDR_SIZE + EFI_IMAGE_EXPORT_ORDINAL_SIZE + strlen((CHAR8 *)SymName) + 1;\r | |
1018 | }\r | |
1019 | }\r | |
1020 | \r | |
1021 | break;\r | |
1022 | }\r | |
1023 | \r | |
1024 | mCoffOffset += mExportSize;\r | |
1025 | mCoffOffset = CoffAlign(mCoffOffset);\r | |
1026 | }\r | |
1027 | \r | |
f51461c8 LG |
1028 | //\r |
1029 | // The HII resource sections.\r | |
1030 | //\r | |
1031 | mHiiRsrcOffset = mCoffOffset;\r | |
1032 | for (i = 0; i < mEhdr->e_shnum; i++) {\r | |
1033 | Elf_Shdr *shdr = GetShdrByIndex(i);\r | |
1034 | if (IsHiiRsrcShdr(shdr)) {\r | |
1035 | if ((shdr->sh_addralign != 0) && (shdr->sh_addralign != 1)) {\r | |
1036 | // the alignment field is valid\r | |
1037 | if ((shdr->sh_addr & (shdr->sh_addralign - 1)) == 0) {\r | |
1038 | // if the section address is aligned we must align PE/COFF\r | |
1039 | mCoffOffset = (UINT32) ((mCoffOffset + shdr->sh_addralign - 1) & ~(shdr->sh_addralign - 1));\r | |
0c960e86 AB |
1040 | } else {\r |
1041 | Error (NULL, 0, 3000, "Invalid", "Section address not aligned to its own alignment.");\r | |
f51461c8 LG |
1042 | }\r |
1043 | }\r | |
1044 | if (shdr->sh_size != 0) {\r | |
234f9ff9 | 1045 | mHiiRsrcOffset = mCoffOffset;\r |
f51461c8 LG |
1046 | mCoffSectionsOffset[i] = mCoffOffset;\r |
1047 | mCoffOffset += (UINT32) shdr->sh_size;\r | |
1048 | mCoffOffset = CoffAlign(mCoffOffset);\r | |
1049 | SetHiiResourceHeader ((UINT8*) mEhdr + shdr->sh_offset, mHiiRsrcOffset);\r | |
1050 | }\r | |
1051 | break;\r | |
1052 | }\r | |
1053 | }\r | |
1054 | \r | |
1055 | mRelocOffset = mCoffOffset;\r | |
1056 | \r | |
1057 | //\r | |
1058 | // Allocate base Coff file. Will be expanded later for relocations.\r | |
1059 | //\r | |
1060 | mCoffFile = (UINT8 *)malloc(mCoffOffset);\r | |
06b45735 HW |
1061 | if (mCoffFile == NULL) {\r |
1062 | Error (NULL, 0, 4001, "Resource", "memory cannot be allocated!");\r | |
1063 | }\r | |
1064 | assert (mCoffFile != NULL);\r | |
f51461c8 LG |
1065 | memset(mCoffFile, 0, mCoffOffset);\r |
1066 | \r | |
1067 | //\r | |
1068 | // Fill headers.\r | |
1069 | //\r | |
1070 | DosHdr = (EFI_IMAGE_DOS_HEADER *)mCoffFile;\r | |
1071 | DosHdr->e_magic = EFI_IMAGE_DOS_SIGNATURE;\r | |
1072 | DosHdr->e_lfanew = mNtHdrOffset;\r | |
1073 | \r | |
1074 | NtHdr = (EFI_IMAGE_OPTIONAL_HEADER_UNION*)(mCoffFile + mNtHdrOffset);\r | |
1075 | \r | |
1076 | NtHdr->Pe32Plus.Signature = EFI_IMAGE_NT_SIGNATURE;\r | |
1077 | \r | |
1078 | switch (mEhdr->e_machine) {\r | |
1079 | case EM_X86_64:\r | |
1080 | NtHdr->Pe32Plus.FileHeader.Machine = EFI_IMAGE_MACHINE_X64;\r | |
1081 | NtHdr->Pe32Plus.OptionalHeader.Magic = EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC;\r | |
1082 | break;\r | |
f51461c8 LG |
1083 | case EM_AARCH64:\r |
1084 | NtHdr->Pe32Plus.FileHeader.Machine = EFI_IMAGE_MACHINE_AARCH64;\r | |
1085 | NtHdr->Pe32Plus.OptionalHeader.Magic = EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC;\r | |
1086 | break;\r | |
ad1db975 AC |
1087 | case EM_RISCV64:\r |
1088 | NtHdr->Pe32Plus.FileHeader.Machine = EFI_IMAGE_MACHINE_RISCV64;\r | |
1089 | NtHdr->Pe32Plus.OptionalHeader.Magic = EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC;\r | |
1090 | break;\r | |
1091 | \r | |
f51461c8 LG |
1092 | default:\r |
1093 | VerboseMsg ("%s unknown e_machine type. Assume X64", (UINTN)mEhdr->e_machine);\r | |
1094 | NtHdr->Pe32Plus.FileHeader.Machine = EFI_IMAGE_MACHINE_X64;\r | |
1095 | NtHdr->Pe32Plus.OptionalHeader.Magic = EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC;\r | |
1096 | }\r | |
1097 | \r | |
1098 | NtHdr->Pe32Plus.FileHeader.NumberOfSections = mCoffNbrSections;\r | |
1099 | NtHdr->Pe32Plus.FileHeader.TimeDateStamp = (UINT32) time(NULL);\r | |
1100 | mImageTimeStamp = NtHdr->Pe32Plus.FileHeader.TimeDateStamp;\r | |
1101 | NtHdr->Pe32Plus.FileHeader.PointerToSymbolTable = 0;\r | |
1102 | NtHdr->Pe32Plus.FileHeader.NumberOfSymbols = 0;\r | |
1103 | NtHdr->Pe32Plus.FileHeader.SizeOfOptionalHeader = sizeof(NtHdr->Pe32Plus.OptionalHeader);\r | |
1104 | NtHdr->Pe32Plus.FileHeader.Characteristics = EFI_IMAGE_FILE_EXECUTABLE_IMAGE\r | |
1105 | | EFI_IMAGE_FILE_LINE_NUMS_STRIPPED\r | |
1106 | | EFI_IMAGE_FILE_LOCAL_SYMS_STRIPPED\r | |
1107 | | EFI_IMAGE_FILE_LARGE_ADDRESS_AWARE;\r | |
1108 | \r | |
1109 | NtHdr->Pe32Plus.OptionalHeader.SizeOfCode = mDataOffset - mTextOffset;\r | |
1110 | NtHdr->Pe32Plus.OptionalHeader.SizeOfInitializedData = mRelocOffset - mDataOffset;\r | |
1111 | NtHdr->Pe32Plus.OptionalHeader.SizeOfUninitializedData = 0;\r | |
1112 | NtHdr->Pe32Plus.OptionalHeader.AddressOfEntryPoint = CoffEntry;\r | |
1113 | \r | |
1114 | NtHdr->Pe32Plus.OptionalHeader.BaseOfCode = mTextOffset;\r | |
1115 | \r | |
1116 | NtHdr->Pe32Plus.OptionalHeader.ImageBase = 0;\r | |
1117 | NtHdr->Pe32Plus.OptionalHeader.SectionAlignment = mCoffAlignment;\r | |
1118 | NtHdr->Pe32Plus.OptionalHeader.FileAlignment = mCoffAlignment;\r | |
1119 | NtHdr->Pe32Plus.OptionalHeader.SizeOfImage = 0;\r | |
1120 | \r | |
1121 | NtHdr->Pe32Plus.OptionalHeader.SizeOfHeaders = mTextOffset;\r | |
1122 | NtHdr->Pe32Plus.OptionalHeader.NumberOfRvaAndSizes = EFI_IMAGE_NUMBER_OF_DIRECTORY_ENTRIES;\r | |
1123 | \r | |
1124 | //\r | |
1125 | // Section headers.\r | |
1126 | //\r | |
1127 | if ((mDataOffset - mTextOffset) > 0) {\r | |
1128 | CreateSectionHeader (".text", mTextOffset, mDataOffset - mTextOffset,\r | |
1129 | EFI_IMAGE_SCN_CNT_CODE\r | |
1130 | | EFI_IMAGE_SCN_MEM_EXECUTE\r | |
1131 | | EFI_IMAGE_SCN_MEM_READ);\r | |
1132 | } else {\r | |
1133 | // Don't make a section of size 0.\r | |
1134 | NtHdr->Pe32Plus.FileHeader.NumberOfSections--;\r | |
1135 | }\r | |
1136 | \r | |
414cd2a4 HLX |
1137 | //\r |
1138 | // If found symbol, add edata section between data and rsrc section\r | |
1139 | //\r | |
1140 | if(mExportFlag) {\r | |
1141 | Offset = mExportOffset;\r | |
1142 | } else {\r | |
1143 | Offset = mHiiRsrcOffset;\r | |
1144 | }\r | |
1145 | \r | |
f51461c8 | 1146 | if ((mHiiRsrcOffset - mDataOffset) > 0) {\r |
414cd2a4 | 1147 | CreateSectionHeader (".data", mDataOffset, Offset - mDataOffset,\r |
f51461c8 LG |
1148 | EFI_IMAGE_SCN_CNT_INITIALIZED_DATA\r |
1149 | | EFI_IMAGE_SCN_MEM_WRITE\r | |
1150 | | EFI_IMAGE_SCN_MEM_READ);\r | |
1151 | } else {\r | |
1152 | // Don't make a section of size 0.\r | |
1153 | NtHdr->Pe32Plus.FileHeader.NumberOfSections--;\r | |
1154 | }\r | |
1155 | \r | |
414cd2a4 HLX |
1156 | if(mExportFlag) {\r |
1157 | if ((mHiiRsrcOffset - mExportOffset) > 0) {\r | |
1158 | CreateSectionHeader (".edata", mExportOffset, mHiiRsrcOffset - mExportOffset,\r | |
1159 | EFI_IMAGE_SCN_CNT_INITIALIZED_DATA\r | |
1160 | | EFI_IMAGE_SCN_MEM_READ);\r | |
1161 | NtHdr->Pe32Plus.OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_EXPORT].Size = mHiiRsrcOffset - mExportOffset;\r | |
1162 | NtHdr->Pe32Plus.OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress = mExportOffset;\r | |
1163 | \r | |
1164 | } else {\r | |
1165 | // Don't make a section of size 0.\r | |
1166 | NtHdr->Pe32Plus.FileHeader.NumberOfSections--;\r | |
1167 | }\r | |
1168 | }\r | |
1169 | \r | |
f51461c8 LG |
1170 | if ((mRelocOffset - mHiiRsrcOffset) > 0) {\r |
1171 | CreateSectionHeader (".rsrc", mHiiRsrcOffset, mRelocOffset - mHiiRsrcOffset,\r | |
1172 | EFI_IMAGE_SCN_CNT_INITIALIZED_DATA\r | |
1173 | | EFI_IMAGE_SCN_MEM_READ);\r | |
1174 | \r | |
1175 | NtHdr->Pe32Plus.OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_RESOURCE].Size = mRelocOffset - mHiiRsrcOffset;\r | |
1176 | NtHdr->Pe32Plus.OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_RESOURCE].VirtualAddress = mHiiRsrcOffset;\r | |
1177 | } else {\r | |
1178 | // Don't make a section of size 0.\r | |
1179 | NtHdr->Pe32Plus.FileHeader.NumberOfSections--;\r | |
1180 | }\r | |
1181 | \r | |
1182 | }\r | |
1183 | \r | |
1184 | STATIC\r | |
1185 | BOOLEAN\r | |
1186 | WriteSections64 (\r | |
1187 | SECTION_FILTER_TYPES FilterType\r | |
1188 | )\r | |
1189 | {\r | |
1190 | UINT32 Idx;\r | |
1191 | Elf_Shdr *SecShdr;\r | |
1192 | UINT32 SecOffset;\r | |
1193 | BOOLEAN (*Filter)(Elf_Shdr *);\r | |
ecbaa856 | 1194 | Elf64_Addr GOTEntryRva;\r |
f51461c8 LG |
1195 | \r |
1196 | //\r | |
1197 | // Initialize filter pointer\r | |
1198 | //\r | |
1199 | switch (FilterType) {\r | |
1200 | case SECTION_TEXT:\r | |
1201 | Filter = IsTextShdr;\r | |
1202 | break;\r | |
1203 | case SECTION_HII:\r | |
1204 | Filter = IsHiiRsrcShdr;\r | |
1205 | break;\r | |
1206 | case SECTION_DATA:\r | |
1207 | Filter = IsDataShdr;\r | |
1208 | break;\r | |
1209 | default:\r | |
1210 | return FALSE;\r | |
1211 | }\r | |
1212 | \r | |
1213 | //\r | |
1214 | // First: copy sections.\r | |
1215 | //\r | |
1216 | for (Idx = 0; Idx < mEhdr->e_shnum; Idx++) {\r | |
1217 | Elf_Shdr *Shdr = GetShdrByIndex(Idx);\r | |
1218 | if ((*Filter)(Shdr)) {\r | |
1219 | switch (Shdr->sh_type) {\r | |
1220 | case SHT_PROGBITS:\r | |
1221 | /* Copy. */\r | |
d78675d1 YF |
1222 | if (Shdr->sh_offset + Shdr->sh_size > mFileBufferSize) {\r |
1223 | return FALSE;\r | |
1224 | }\r | |
f51461c8 LG |
1225 | memcpy(mCoffFile + mCoffSectionsOffset[Idx],\r |
1226 | (UINT8*)mEhdr + Shdr->sh_offset,\r | |
1227 | (size_t) Shdr->sh_size);\r | |
1228 | break;\r | |
1229 | \r | |
1230 | case SHT_NOBITS:\r | |
1231 | memset(mCoffFile + mCoffSectionsOffset[Idx], 0, (size_t) Shdr->sh_size);\r | |
1232 | break;\r | |
1233 | \r | |
1234 | default:\r | |
1235 | //\r | |
fb0b35e0 | 1236 | // Ignore for unknown section type.\r |
f51461c8 | 1237 | //\r |
1794b98f | 1238 | VerboseMsg ("%s unknown section type %x. We ignore this unknown section type.", mInImageName, (unsigned)Shdr->sh_type);\r |
f51461c8 LG |
1239 | break;\r |
1240 | }\r | |
1241 | }\r | |
1242 | }\r | |
1243 | \r | |
1244 | //\r | |
1245 | // Second: apply relocations.\r | |
1246 | //\r | |
1247 | VerboseMsg ("Applying Relocations...");\r | |
1248 | for (Idx = 0; Idx < mEhdr->e_shnum; Idx++) {\r | |
1249 | //\r | |
1250 | // Determine if this is a relocation section.\r | |
1251 | //\r | |
1252 | Elf_Shdr *RelShdr = GetShdrByIndex(Idx);\r | |
1253 | if ((RelShdr->sh_type != SHT_REL) && (RelShdr->sh_type != SHT_RELA)) {\r | |
1254 | continue;\r | |
1255 | }\r | |
1256 | \r | |
4962fcfa AB |
1257 | //\r |
1258 | // If this is a ET_DYN (PIE) executable, we will encounter a dynamic SHT_RELA\r | |
1259 | // section that applies to the entire binary, and which will have its section\r | |
1260 | // index set to #0 (which is a NULL section with the SHF_ALLOC bit cleared).\r | |
1261 | //\r | |
ecbaa856 | 1262 | // In the absence of GOT based relocations,\r |
4962fcfa AB |
1263 | // this RELA section will contain redundant R_xxx_RELATIVE relocations, one\r |
1264 | // for every R_xxx_xx64 relocation appearing in the per-section RELA sections.\r | |
1265 | // (i.e., .rela.text and .rela.data)\r | |
1266 | //\r | |
1267 | if (RelShdr->sh_info == 0) {\r | |
1268 | continue;\r | |
1269 | }\r | |
1270 | \r | |
f51461c8 LG |
1271 | //\r |
1272 | // Relocation section found. Now extract section information that the relocations\r | |
1273 | // apply to in the ELF data and the new COFF data.\r | |
1274 | //\r | |
1275 | SecShdr = GetShdrByIndex(RelShdr->sh_info);\r | |
1276 | SecOffset = mCoffSectionsOffset[RelShdr->sh_info];\r | |
1277 | \r | |
1278 | //\r | |
1279 | // Only process relocations for the current filter type.\r | |
1280 | //\r | |
1281 | if (RelShdr->sh_type == SHT_RELA && (*Filter)(SecShdr)) {\r | |
1282 | UINT64 RelIdx;\r | |
1283 | \r | |
1284 | //\r | |
1285 | // Determine the symbol table referenced by the relocation data.\r | |
1286 | //\r | |
1287 | Elf_Shdr *SymtabShdr = GetShdrByIndex(RelShdr->sh_link);\r | |
1288 | UINT8 *Symtab = (UINT8*)mEhdr + SymtabShdr->sh_offset;\r | |
1289 | \r | |
1290 | //\r | |
1291 | // Process all relocation entries for this section.\r | |
1292 | //\r | |
1293 | for (RelIdx = 0; RelIdx < RelShdr->sh_size; RelIdx += (UINT32) RelShdr->sh_entsize) {\r | |
1294 | \r | |
1295 | //\r | |
1296 | // Set pointer to relocation entry\r | |
1297 | //\r | |
1298 | Elf_Rela *Rel = (Elf_Rela *)((UINT8*)mEhdr + RelShdr->sh_offset + RelIdx);\r | |
1299 | \r | |
1300 | //\r | |
1301 | // Set pointer to symbol table entry associated with the relocation entry.\r | |
1302 | //\r | |
1303 | Elf_Sym *Sym = (Elf_Sym *)(Symtab + ELF_R_SYM(Rel->r_info) * SymtabShdr->sh_entsize);\r | |
1304 | \r | |
1305 | Elf_Shdr *SymShdr;\r | |
1306 | UINT8 *Targ;\r | |
1307 | \r | |
7b8f69d7 AB |
1308 | //\r |
1309 | // The _GLOBAL_OFFSET_TABLE_ symbol is not actually an absolute symbol,\r | |
1310 | // but carries the SHN_ABS section index for historical reasons.\r | |
1311 | // It must be accompanied by a R_*_GOT_* type relocation on a\r | |
1312 | // subsequent instruction, which we handle below, specifically to avoid\r | |
1313 | // the GOT indirection, and to refer to the symbol directly. This means\r | |
1314 | // we can simply disregard direct references to the GOT symbol itself,\r | |
1315 | // as the resulting value will never be used.\r | |
1316 | //\r | |
1317 | if (Sym->st_shndx == SHN_ABS) {\r | |
1318 | const UINT8 *SymName = GetSymName (Sym);\r | |
1319 | if (strcmp ((CHAR8 *)SymName, "_GLOBAL_OFFSET_TABLE_") == 0) {\r | |
1320 | continue;\r | |
1321 | }\r | |
1322 | }\r | |
1323 | \r | |
f51461c8 LG |
1324 | //\r |
1325 | // Check section header index found in symbol table and get the section\r | |
1326 | // header location.\r | |
1327 | //\r | |
1328 | if (Sym->st_shndx == SHN_UNDEF\r | |
621bb723 ML |
1329 | || Sym->st_shndx >= mEhdr->e_shnum) {\r |
1330 | const UINT8 *SymName = GetSymName(Sym);\r | |
1331 | if (SymName == NULL) {\r | |
1332 | SymName = (const UINT8 *)"<unknown>";\r | |
1333 | }\r | |
1334 | \r | |
ad1db975 AC |
1335 | //\r |
1336 | // Skip error on EM_RISCV64 becasue no symble name is built\r | |
1337 | // from RISC-V toolchain.\r | |
1338 | //\r | |
1339 | if (mEhdr->e_machine != EM_RISCV64) {\r | |
1340 | Error (NULL, 0, 3000, "Invalid",\r | |
1341 | "%s: Bad definition for symbol '%s'@%#llx or unsupported symbol type. "\r | |
1342 | "For example, absolute and undefined symbols are not supported.",\r | |
1343 | mInImageName, SymName, Sym->st_value);\r | |
621bb723 | 1344 | \r |
ad1db975 AC |
1345 | exit(EXIT_FAILURE);\r |
1346 | }\r | |
c6b872c6 | 1347 | continue;\r |
f51461c8 LG |
1348 | }\r |
1349 | SymShdr = GetShdrByIndex(Sym->st_shndx);\r | |
1350 | \r | |
1351 | //\r | |
1352 | // Convert the relocation data to a pointer into the coff file.\r | |
1353 | //\r | |
1354 | // Note:\r | |
1355 | // r_offset is the virtual address of the storage unit to be relocated.\r | |
1356 | // sh_addr is the virtual address for the base of the section.\r | |
1357 | //\r | |
1358 | // r_offset in a memory address.\r | |
1359 | // Convert it to a pointer in the coff file.\r | |
1360 | //\r | |
1361 | Targ = mCoffFile + SecOffset + (Rel->r_offset - SecShdr->sh_addr);\r | |
1362 | \r | |
1363 | //\r | |
1364 | // Determine how to handle each relocation type based on the machine type.\r | |
1365 | //\r | |
1366 | if (mEhdr->e_machine == EM_X86_64) {\r | |
1367 | switch (ELF_R_TYPE(Rel->r_info)) {\r | |
1368 | case R_X86_64_NONE:\r | |
1369 | break;\r | |
1370 | case R_X86_64_64:\r | |
1371 | //\r | |
1372 | // Absolute relocation.\r | |
1373 | //\r | |
1374 | VerboseMsg ("R_X86_64_64");\r | |
f7496d71 LG |
1375 | VerboseMsg ("Offset: 0x%08X, Addend: 0x%016LX",\r |
1376 | (UINT32)(SecOffset + (Rel->r_offset - SecShdr->sh_addr)),\r | |
f51461c8 LG |
1377 | *(UINT64 *)Targ);\r |
1378 | *(UINT64 *)Targ = *(UINT64 *)Targ - SymShdr->sh_addr + mCoffSectionsOffset[Sym->st_shndx];\r | |
1379 | VerboseMsg ("Relocation: 0x%016LX", *(UINT64*)Targ);\r | |
1380 | break;\r | |
1381 | case R_X86_64_32:\r | |
1382 | VerboseMsg ("R_X86_64_32");\r | |
f7496d71 LG |
1383 | VerboseMsg ("Offset: 0x%08X, Addend: 0x%08X",\r |
1384 | (UINT32)(SecOffset + (Rel->r_offset - SecShdr->sh_addr)),\r | |
f51461c8 LG |
1385 | *(UINT32 *)Targ);\r |
1386 | *(UINT32 *)Targ = (UINT32)((UINT64)(*(UINT32 *)Targ) - SymShdr->sh_addr + mCoffSectionsOffset[Sym->st_shndx]);\r | |
1387 | VerboseMsg ("Relocation: 0x%08X", *(UINT32*)Targ);\r | |
1388 | break;\r | |
1389 | case R_X86_64_32S:\r | |
1390 | VerboseMsg ("R_X86_64_32S");\r | |
f7496d71 LG |
1391 | VerboseMsg ("Offset: 0x%08X, Addend: 0x%08X",\r |
1392 | (UINT32)(SecOffset + (Rel->r_offset - SecShdr->sh_addr)),\r | |
f51461c8 LG |
1393 | *(UINT32 *)Targ);\r |
1394 | *(INT32 *)Targ = (INT32)((INT64)(*(INT32 *)Targ) - SymShdr->sh_addr + mCoffSectionsOffset[Sym->st_shndx]);\r | |
1395 | VerboseMsg ("Relocation: 0x%08X", *(UINT32*)Targ);\r | |
1396 | break;\r | |
c9f29755 AB |
1397 | \r |
1398 | case R_X86_64_PLT32:\r | |
1399 | //\r | |
1400 | // Treat R_X86_64_PLT32 relocations as R_X86_64_PC32: this is\r | |
1401 | // possible since we know all code symbol references resolve to\r | |
1402 | // definitions in the same module (UEFI has no shared libraries),\r | |
1403 | // and so there is never a reason to jump via a PLT entry,\r | |
1404 | // allowing us to resolve the reference using the symbol directly.\r | |
1405 | //\r | |
1406 | VerboseMsg ("Treating R_X86_64_PLT32 as R_X86_64_PC32 ...");\r | |
1407 | /* fall through */\r | |
f51461c8 LG |
1408 | case R_X86_64_PC32:\r |
1409 | //\r | |
1410 | // Relative relocation: Symbol - Ip + Addend\r | |
1411 | //\r | |
1412 | VerboseMsg ("R_X86_64_PC32");\r | |
f7496d71 LG |
1413 | VerboseMsg ("Offset: 0x%08X, Addend: 0x%08X",\r |
1414 | (UINT32)(SecOffset + (Rel->r_offset - SecShdr->sh_addr)),\r | |
f51461c8 LG |
1415 | *(UINT32 *)Targ);\r |
1416 | *(UINT32 *)Targ = (UINT32) (*(UINT32 *)Targ\r | |
1417 | + (mCoffSectionsOffset[Sym->st_shndx] - SymShdr->sh_addr)\r | |
1418 | - (SecOffset - SecShdr->sh_addr));\r | |
1419 | VerboseMsg ("Relocation: 0x%08X", *(UINT32 *)Targ);\r | |
1420 | break;\r | |
ecbaa856 Z |
1421 | case R_X86_64_GOTPCREL:\r |
1422 | case R_X86_64_GOTPCRELX:\r | |
1423 | case R_X86_64_REX_GOTPCRELX:\r | |
1424 | VerboseMsg ("R_X86_64_GOTPCREL family");\r | |
1425 | VerboseMsg ("Offset: 0x%08X, Addend: 0x%08X",\r | |
1426 | (UINT32)(SecOffset + (Rel->r_offset - SecShdr->sh_addr)),\r | |
1427 | *(UINT32 *)Targ);\r | |
1428 | GOTEntryRva = Rel->r_offset - Rel->r_addend + *(INT32 *)Targ;\r | |
1429 | FindElfGOTSectionFromGOTEntryElfRva(GOTEntryRva);\r | |
1430 | *(UINT32 *)Targ = (UINT32) (*(UINT32 *)Targ\r | |
1431 | + (mCoffSectionsOffset[mGOTShindex] - mGOTShdr->sh_addr)\r | |
1432 | - (SecOffset - SecShdr->sh_addr));\r | |
1433 | VerboseMsg ("Relocation: 0x%08X", *(UINT32 *)Targ);\r | |
1434 | GOTEntryRva += (mCoffSectionsOffset[mGOTShindex] - mGOTShdr->sh_addr); // ELF Rva -> COFF Rva\r | |
1435 | if (AccumulateCoffGOTEntries((UINT32)GOTEntryRva)) {\r | |
1436 | //\r | |
1437 | // Relocate GOT entry if it's the first time we run into it\r | |
1438 | //\r | |
1439 | Targ = mCoffFile + GOTEntryRva;\r | |
1440 | //\r | |
1441 | // Limitation: The following three statements assume memory\r | |
1442 | // at *Targ is valid because the section containing the GOT\r | |
1443 | // has already been copied from the ELF image to the Coff image.\r | |
1444 | // This pre-condition presently holds because the GOT is placed\r | |
1445 | // in section .text, and the ELF text sections are all copied\r | |
1446 | // prior to reaching this point.\r | |
1447 | // If the pre-condition is violated in the future, this fixup\r | |
1448 | // either needs to be deferred after the GOT section is copied\r | |
1449 | // to the Coff image, or the fixup should be performed on the\r | |
1450 | // source Elf image instead of the destination Coff image.\r | |
1451 | //\r | |
1452 | VerboseMsg ("Offset: 0x%08X, Addend: 0x%016LX",\r | |
1453 | (UINT32)GOTEntryRva,\r | |
1454 | *(UINT64 *)Targ);\r | |
1455 | *(UINT64 *)Targ = *(UINT64 *)Targ - SymShdr->sh_addr + mCoffSectionsOffset[Sym->st_shndx];\r | |
1456 | VerboseMsg ("Relocation: 0x%016LX", *(UINT64*)Targ);\r | |
1457 | }\r | |
1458 | break;\r | |
f51461c8 LG |
1459 | default:\r |
1460 | Error (NULL, 0, 3000, "Invalid", "%s unsupported ELF EM_X86_64 relocation 0x%x.", mInImageName, (unsigned) ELF_R_TYPE(Rel->r_info));\r | |
1461 | }\r | |
1462 | } else if (mEhdr->e_machine == EM_AARCH64) {\r | |
1463 | \r | |
f51461c8 | 1464 | switch (ELF_R_TYPE(Rel->r_info)) {\r |
d2687f23 AB |
1465 | INT64 Offset;\r |
1466 | \r | |
7b8f69d7 AB |
1467 | case R_AARCH64_LD64_GOTOFF_LO15:\r |
1468 | case R_AARCH64_LD64_GOTPAGE_LO15:\r | |
1469 | //\r | |
1470 | // Convert into an ADR instruction that refers to the symbol directly.\r | |
1471 | //\r | |
1472 | Offset = Sym->st_value - Rel->r_offset;\r | |
1473 | \r | |
1474 | *(UINT32 *)Targ &= 0x1000001f;\r | |
1475 | *(UINT32 *)Targ |= ((Offset & 0x1ffffc) << (5 - 2)) | ((Offset & 0x3) << 29);\r | |
1476 | \r | |
1477 | if (Offset < -0x100000 || Offset > 0xfffff) {\r | |
1478 | Error (NULL, 0, 3000, "Invalid", "WriteSections64(): %s failed to relax GOT based symbol reference - image is too big (>1 MiB).",\r | |
1479 | mInImageName);\r | |
1480 | break;\r | |
1481 | }\r | |
1482 | break;\r | |
1483 | \r | |
d2687f23 AB |
1484 | case R_AARCH64_LD64_GOT_LO12_NC:\r |
1485 | //\r | |
1486 | // Convert into an ADD instruction - see R_AARCH64_ADR_GOT_PAGE below.\r | |
1487 | //\r | |
1488 | *(UINT32 *)Targ &= 0x3ff;\r | |
1489 | *(UINT32 *)Targ |= 0x91000000 | ((Sym->st_value & 0xfff) << 10);\r | |
1490 | break;\r | |
1491 | \r | |
1492 | case R_AARCH64_ADR_GOT_PAGE:\r | |
1493 | //\r | |
1494 | // This relocation points to the GOT entry that contains the absolute\r | |
1495 | // address of the symbol we are referring to. Since EDK2 only uses\r | |
1496 | // fully linked binaries, we can avoid the indirection, and simply\r | |
1497 | // refer to the symbol directly. This implies having to patch the\r | |
1498 | // subsequent LDR instruction (covered by a R_AARCH64_LD64_GOT_LO12_NC\r | |
1499 | // relocation) into an ADD instruction - this is handled above.\r | |
1500 | //\r | |
1501 | Offset = (Sym->st_value - (Rel->r_offset & ~0xfff)) >> 12;\r | |
1502 | \r | |
1503 | *(UINT32 *)Targ &= 0x9000001f;\r | |
1504 | *(UINT32 *)Targ |= ((Offset & 0x1ffffc) << (5 - 2)) | ((Offset & 0x3) << 29);\r | |
1505 | \r | |
1506 | /* fall through */\r | |
f51461c8 | 1507 | \r |
24d610e6 | 1508 | case R_AARCH64_ADR_PREL_PG_HI21:\r |
f55c76b3 AB |
1509 | //\r |
1510 | // In order to handle Cortex-A53 erratum #843419, the LD linker may\r | |
1511 | // convert ADRP instructions into ADR instructions, but without\r | |
1512 | // updating the static relocation type, and so we may end up here\r | |
1513 | // while the instruction in question is actually ADR. So let's\r | |
1514 | // just disregard it: the section offset check we apply below to\r | |
1515 | // ADR instructions will trigger for its R_AARCH64_xxx_ABS_LO12_NC\r | |
1516 | // companion instruction as well, so it is safe to omit it here.\r | |
1517 | //\r | |
1518 | if ((*(UINT32 *)Targ & BIT31) == 0) {\r | |
1519 | break;\r | |
1520 | }\r | |
1521 | \r | |
24d610e6 AB |
1522 | //\r |
1523 | // AArch64 PG_H21 relocations are typically paired with ABS_LO12\r | |
1524 | // relocations, where a PC-relative reference with +/- 4 GB range is\r | |
1525 | // split into a relative high part and an absolute low part. Since\r | |
1526 | // the absolute low part represents the offset into a 4 KB page, we\r | |
026a82ab AB |
1527 | // either have to convert the ADRP into an ADR instruction, or we\r |
1528 | // need to use a section alignment of at least 4 KB, so that the\r | |
1529 | // binary appears at a correct offset at runtime. In any case, we\r | |
24d610e6 AB |
1530 | // have to make sure that the 4 KB relative offsets of both the\r |
1531 | // section containing the reference as well as the section to which\r | |
1532 | // it refers have not been changed during PE/COFF conversion (i.e.,\r | |
1533 | // in ScanSections64() above).\r | |
1534 | //\r | |
026a82ab AB |
1535 | if (mCoffAlignment < 0x1000) {\r |
1536 | //\r | |
1537 | // Attempt to convert the ADRP into an ADR instruction.\r | |
1538 | // This is only possible if the symbol is within +/- 1 MB.\r | |
1539 | //\r | |
026a82ab AB |
1540 | \r |
1541 | // Decode the ADRP instruction\r | |
1542 | Offset = (INT32)((*(UINT32 *)Targ & 0xffffe0) << 8);\r | |
1543 | Offset = (Offset << (6 - 5)) | ((*(UINT32 *)Targ & 0x60000000) >> (29 - 12));\r | |
1544 | \r | |
1545 | //\r | |
1546 | // ADRP offset is relative to the previous page boundary,\r | |
1547 | // whereas ADR offset is relative to the instruction itself.\r | |
1548 | // So fix up the offset so it points to the page containing\r | |
1549 | // the symbol.\r | |
1550 | //\r | |
1551 | Offset -= (UINTN)(Targ - mCoffFile) & 0xfff;\r | |
1552 | \r | |
1553 | if (Offset < -0x100000 || Offset > 0xfffff) {\r | |
1554 | Error (NULL, 0, 3000, "Invalid", "WriteSections64(): %s due to its size (> 1 MB), this module requires 4 KB section alignment.",\r | |
1555 | mInImageName);\r | |
1556 | break;\r | |
1557 | }\r | |
1558 | \r | |
1559 | // Re-encode the offset as an ADR instruction\r | |
1560 | *(UINT32 *)Targ &= 0x1000001f;\r | |
1561 | *(UINT32 *)Targ |= ((Offset & 0x1ffffc) << (5 - 2)) | ((Offset & 0x3) << 29);\r | |
1562 | }\r | |
1563 | /* fall through */\r | |
1564 | \r | |
1565 | case R_AARCH64_ADD_ABS_LO12_NC:\r | |
1566 | case R_AARCH64_LDST8_ABS_LO12_NC:\r | |
1567 | case R_AARCH64_LDST16_ABS_LO12_NC:\r | |
1568 | case R_AARCH64_LDST32_ABS_LO12_NC:\r | |
1569 | case R_AARCH64_LDST64_ABS_LO12_NC:\r | |
1570 | case R_AARCH64_LDST128_ABS_LO12_NC:\r | |
24d610e6 | 1571 | if (((SecShdr->sh_addr ^ SecOffset) & 0xfff) != 0 ||\r |
026a82ab AB |
1572 | ((SymShdr->sh_addr ^ mCoffSectionsOffset[Sym->st_shndx]) & 0xfff) != 0) {\r |
1573 | Error (NULL, 0, 3000, "Invalid", "WriteSections64(): %s AARCH64 small code model requires identical ELF and PE/COFF section offsets modulo 4 KB.",\r | |
24d610e6 AB |
1574 | mInImageName);\r |
1575 | break;\r | |
87280982 | 1576 | }\r |
24d610e6 | 1577 | /* fall through */\r |
87280982 | 1578 | \r |
24d610e6 | 1579 | case R_AARCH64_ADR_PREL_LO21:\r |
87280982 | 1580 | case R_AARCH64_CONDBR19:\r |
f51461c8 | 1581 | case R_AARCH64_LD_PREL_LO19:\r |
f51461c8 | 1582 | case R_AARCH64_CALL26:\r |
f51461c8 | 1583 | case R_AARCH64_JUMP26:\r |
0b6249f5 AB |
1584 | case R_AARCH64_PREL64:\r |
1585 | case R_AARCH64_PREL32:\r | |
1586 | case R_AARCH64_PREL16:\r | |
24d610e6 AB |
1587 | //\r |
1588 | // The GCC toolchains (i.e., binutils) may corrupt section relative\r | |
1589 | // relocations when emitting relocation sections into fully linked\r | |
1590 | // binaries. More specifically, they tend to fail to take into\r | |
1591 | // account the fact that a '.rodata + XXX' relocation needs to have\r | |
1592 | // its addend recalculated once .rodata is merged into the .text\r | |
1593 | // section, and the relocation emitted into the .rela.text section.\r | |
1594 | //\r | |
1595 | // We cannot really recover from this loss of information, so the\r | |
1596 | // only workaround is to prevent having to recalculate any relative\r | |
1597 | // relocations at all, by using a linker script that ensures that\r | |
1598 | // the offset between the Place and the Symbol is the same in both\r | |
1599 | // the ELF and the PE/COFF versions of the binary.\r | |
1600 | //\r | |
1601 | if ((SymShdr->sh_addr - SecShdr->sh_addr) !=\r | |
1602 | (mCoffSectionsOffset[Sym->st_shndx] - SecOffset)) {\r | |
1603 | Error (NULL, 0, 3000, "Invalid", "WriteSections64(): %s AARCH64 relative relocations require identical ELF and PE/COFF section offsets",\r | |
1604 | mInImageName);\r | |
f51461c8 LG |
1605 | }\r |
1606 | break;\r | |
1607 | \r | |
f51461c8 LG |
1608 | // Absolute relocations.\r |
1609 | case R_AARCH64_ABS64:\r | |
1610 | *(UINT64 *)Targ = *(UINT64 *)Targ - SymShdr->sh_addr + mCoffSectionsOffset[Sym->st_shndx];\r | |
1611 | break;\r | |
1612 | \r | |
1613 | default:\r | |
1614 | Error (NULL, 0, 3000, "Invalid", "WriteSections64(): %s unsupported ELF EM_AARCH64 relocation 0x%x.", mInImageName, (unsigned) ELF_R_TYPE(Rel->r_info));\r | |
1615 | }\r | |
ad1db975 AC |
1616 | } else if (mEhdr->e_machine == EM_RISCV64) {\r |
1617 | //\r | |
1618 | // Write section for RISC-V 64 architecture.\r | |
1619 | //\r | |
1620 | WriteSectionRiscV64 (Rel, Targ, SymShdr, Sym);\r | |
f51461c8 LG |
1621 | } else {\r |
1622 | Error (NULL, 0, 3000, "Invalid", "Not a supported machine type");\r | |
1623 | }\r | |
1624 | }\r | |
1625 | }\r | |
1626 | }\r | |
1627 | \r | |
1628 | return TRUE;\r | |
1629 | }\r | |
1630 | \r | |
1631 | STATIC\r | |
1632 | VOID\r | |
1633 | WriteRelocations64 (\r | |
1634 | VOID\r | |
1635 | )\r | |
1636 | {\r | |
1637 | UINT32 Index;\r | |
1638 | EFI_IMAGE_OPTIONAL_HEADER_UNION *NtHdr;\r | |
1639 | EFI_IMAGE_DATA_DIRECTORY *Dir;\r | |
ad1db975 | 1640 | UINT32 RiscVRelType;\r |
f51461c8 LG |
1641 | \r |
1642 | for (Index = 0; Index < mEhdr->e_shnum; Index++) {\r | |
1643 | Elf_Shdr *RelShdr = GetShdrByIndex(Index);\r | |
1644 | if ((RelShdr->sh_type == SHT_REL) || (RelShdr->sh_type == SHT_RELA)) {\r | |
1645 | Elf_Shdr *SecShdr = GetShdrByIndex (RelShdr->sh_info);\r | |
1646 | if (IsTextShdr(SecShdr) || IsDataShdr(SecShdr)) {\r | |
1647 | UINT64 RelIdx;\r | |
1648 | \r | |
1649 | for (RelIdx = 0; RelIdx < RelShdr->sh_size; RelIdx += RelShdr->sh_entsize) {\r | |
1650 | Elf_Rela *Rel = (Elf_Rela *)((UINT8*)mEhdr + RelShdr->sh_offset + RelIdx);\r | |
1651 | \r | |
1652 | if (mEhdr->e_machine == EM_X86_64) {\r | |
1653 | switch (ELF_R_TYPE(Rel->r_info)) {\r | |
1654 | case R_X86_64_NONE:\r | |
1655 | case R_X86_64_PC32:\r | |
c9f29755 | 1656 | case R_X86_64_PLT32:\r |
ecbaa856 Z |
1657 | case R_X86_64_GOTPCREL:\r |
1658 | case R_X86_64_GOTPCRELX:\r | |
1659 | case R_X86_64_REX_GOTPCRELX:\r | |
f51461c8 LG |
1660 | break;\r |
1661 | case R_X86_64_64:\r | |
f7496d71 | 1662 | VerboseMsg ("EFI_IMAGE_REL_BASED_DIR64 Offset: 0x%08X",\r |
f51461c8 LG |
1663 | mCoffSectionsOffset[RelShdr->sh_info] + (Rel->r_offset - SecShdr->sh_addr));\r |
1664 | CoffAddFixup(\r | |
1665 | (UINT32) ((UINT64) mCoffSectionsOffset[RelShdr->sh_info]\r | |
1666 | + (Rel->r_offset - SecShdr->sh_addr)),\r | |
1667 | EFI_IMAGE_REL_BASED_DIR64);\r | |
1668 | break;\r | |
c6a14de3 Z |
1669 | //\r |
1670 | // R_X86_64_32 and R_X86_64_32S are ELF64 relocations emitted when using\r | |
1671 | // the SYSV X64 ABI small non-position-independent code model.\r | |
1672 | // R_X86_64_32 is used for unsigned 32-bit immediates with a 32-bit operand\r | |
1673 | // size. The value is either not extended, or zero-extended to 64 bits.\r | |
1674 | // R_X86_64_32S is used for either signed 32-bit non-rip-relative displacements\r | |
1675 | // or signed 32-bit immediates with a 64-bit operand size. The value is\r | |
1676 | // sign-extended to 64 bits.\r | |
1677 | // EFI_IMAGE_REL_BASED_HIGHLOW is a PE relocation that uses 32-bit arithmetic\r | |
1678 | // for rebasing an image.\r | |
1679 | // EFI PE binaries declare themselves EFI_IMAGE_FILE_LARGE_ADDRESS_AWARE and\r | |
1680 | // may load above 2GB. If an EFI PE binary with a converted R_X86_64_32S\r | |
1681 | // relocation is loaded above 2GB, the value will get sign-extended to the\r | |
1682 | // negative part of the 64-bit address space. The negative part of the 64-bit\r | |
1683 | // address space is unmapped, so accessing such an address page-faults.\r | |
1684 | // In order to support R_X86_64_32S, it is necessary to unset\r | |
1685 | // EFI_IMAGE_FILE_LARGE_ADDRESS_AWARE, and the EFI PE loader must implement\r | |
1686 | // this flag and abstain from loading such a PE binary above 2GB.\r | |
1687 | // Since this feature is not supported, support for R_X86_64_32S (and hence\r | |
1688 | // the small non-position-independent code model) is disabled.\r | |
1689 | //\r | |
1690 | // case R_X86_64_32S:\r | |
f51461c8 | 1691 | case R_X86_64_32:\r |
f7496d71 | 1692 | VerboseMsg ("EFI_IMAGE_REL_BASED_HIGHLOW Offset: 0x%08X",\r |
f51461c8 LG |
1693 | mCoffSectionsOffset[RelShdr->sh_info] + (Rel->r_offset - SecShdr->sh_addr));\r |
1694 | CoffAddFixup(\r | |
1695 | (UINT32) ((UINT64) mCoffSectionsOffset[RelShdr->sh_info]\r | |
1696 | + (Rel->r_offset - SecShdr->sh_addr)),\r | |
1697 | EFI_IMAGE_REL_BASED_HIGHLOW);\r | |
1698 | break;\r | |
1699 | default:\r | |
1700 | Error (NULL, 0, 3000, "Invalid", "%s unsupported ELF EM_X86_64 relocation 0x%x.", mInImageName, (unsigned) ELF_R_TYPE(Rel->r_info));\r | |
1701 | }\r | |
1702 | } else if (mEhdr->e_machine == EM_AARCH64) {\r | |
24d610e6 | 1703 | \r |
f51461c8 | 1704 | switch (ELF_R_TYPE(Rel->r_info)) {\r |
87280982 | 1705 | case R_AARCH64_ADR_PREL_LO21:\r |
87280982 | 1706 | case R_AARCH64_CONDBR19:\r |
f51461c8 | 1707 | case R_AARCH64_LD_PREL_LO19:\r |
f51461c8 | 1708 | case R_AARCH64_CALL26:\r |
f51461c8 | 1709 | case R_AARCH64_JUMP26:\r |
0b6249f5 AB |
1710 | case R_AARCH64_PREL64:\r |
1711 | case R_AARCH64_PREL32:\r | |
1712 | case R_AARCH64_PREL16:\r | |
f51461c8 | 1713 | case R_AARCH64_ADR_PREL_PG_HI21:\r |
f51461c8 | 1714 | case R_AARCH64_ADD_ABS_LO12_NC:\r |
24d610e6 AB |
1715 | case R_AARCH64_LDST8_ABS_LO12_NC:\r |
1716 | case R_AARCH64_LDST16_ABS_LO12_NC:\r | |
1717 | case R_AARCH64_LDST32_ABS_LO12_NC:\r | |
1718 | case R_AARCH64_LDST64_ABS_LO12_NC:\r | |
1719 | case R_AARCH64_LDST128_ABS_LO12_NC:\r | |
d2687f23 AB |
1720 | case R_AARCH64_ADR_GOT_PAGE:\r |
1721 | case R_AARCH64_LD64_GOT_LO12_NC:\r | |
7b8f69d7 AB |
1722 | case R_AARCH64_LD64_GOTOFF_LO15:\r |
1723 | case R_AARCH64_LD64_GOTPAGE_LO15:\r | |
0b6249f5 AB |
1724 | //\r |
1725 | // No fixups are required for relative relocations, provided that\r | |
1726 | // the relative offsets between sections have been preserved in\r | |
1727 | // the ELF to PE/COFF conversion. We have already asserted that\r | |
1728 | // this is the case in WriteSections64 ().\r | |
1729 | //\r | |
f51461c8 LG |
1730 | break;\r |
1731 | \r | |
1732 | case R_AARCH64_ABS64:\r | |
1733 | CoffAddFixup(\r | |
1734 | (UINT32) ((UINT64) mCoffSectionsOffset[RelShdr->sh_info]\r | |
1735 | + (Rel->r_offset - SecShdr->sh_addr)),\r | |
1736 | EFI_IMAGE_REL_BASED_DIR64);\r | |
1737 | break;\r | |
1738 | \r | |
1739 | case R_AARCH64_ABS32:\r | |
1740 | CoffAddFixup(\r | |
1741 | (UINT32) ((UINT64) mCoffSectionsOffset[RelShdr->sh_info]\r | |
1742 | + (Rel->r_offset - SecShdr->sh_addr)),\r | |
1743 | EFI_IMAGE_REL_BASED_HIGHLOW);\r | |
1744 | break;\r | |
1745 | \r | |
1746 | default:\r | |
1747 | Error (NULL, 0, 3000, "Invalid", "WriteRelocations64(): %s unsupported ELF EM_AARCH64 relocation 0x%x.", mInImageName, (unsigned) ELF_R_TYPE(Rel->r_info));\r | |
1748 | }\r | |
ad1db975 AC |
1749 | } else if (mEhdr->e_machine == EM_RISCV64) {\r |
1750 | RiscVRelType = ELF_R_TYPE(Rel->r_info);\r | |
1751 | switch (RiscVRelType) {\r | |
1752 | case R_RISCV_NONE:\r | |
1753 | break;\r | |
1754 | \r | |
1755 | case R_RISCV_32:\r | |
1756 | CoffAddFixup(\r | |
1757 | (UINT32) ((UINT64) mCoffSectionsOffset[RelShdr->sh_info]\r | |
1758 | + (Rel->r_offset - SecShdr->sh_addr)),\r | |
1759 | EFI_IMAGE_REL_BASED_HIGHLOW);\r | |
1760 | break;\r | |
1761 | \r | |
1762 | case R_RISCV_64:\r | |
1763 | CoffAddFixup(\r | |
1764 | (UINT32) ((UINT64) mCoffSectionsOffset[RelShdr->sh_info]\r | |
1765 | + (Rel->r_offset - SecShdr->sh_addr)),\r | |
1766 | EFI_IMAGE_REL_BASED_DIR64);\r | |
1767 | break;\r | |
1768 | \r | |
1769 | case R_RISCV_HI20:\r | |
1770 | CoffAddFixup(\r | |
1771 | (UINT32) ((UINT64) mCoffSectionsOffset[RelShdr->sh_info]\r | |
1772 | + (Rel->r_offset - SecShdr->sh_addr)),\r | |
1773 | EFI_IMAGE_REL_BASED_RISCV_HI20);\r | |
1774 | break;\r | |
1775 | \r | |
1776 | case R_RISCV_LO12_I:\r | |
1777 | CoffAddFixup(\r | |
1778 | (UINT32) ((UINT64) mCoffSectionsOffset[RelShdr->sh_info]\r | |
1779 | + (Rel->r_offset - SecShdr->sh_addr)),\r | |
1780 | EFI_IMAGE_REL_BASED_RISCV_LOW12I);\r | |
1781 | break;\r | |
1782 | \r | |
1783 | case R_RISCV_LO12_S:\r | |
1784 | CoffAddFixup(\r | |
1785 | (UINT32) ((UINT64) mCoffSectionsOffset[RelShdr->sh_info]\r | |
1786 | + (Rel->r_offset - SecShdr->sh_addr)),\r | |
1787 | EFI_IMAGE_REL_BASED_RISCV_LOW12S);\r | |
1788 | break;\r | |
1789 | \r | |
1790 | case R_RISCV_ADD64:\r | |
1791 | CoffAddFixup(\r | |
1792 | (UINT32) ((UINT64) mCoffSectionsOffset[RelShdr->sh_info]\r | |
1793 | + (Rel->r_offset - SecShdr->sh_addr)),\r | |
1794 | EFI_IMAGE_REL_BASED_ABSOLUTE);\r | |
1795 | break;\r | |
1796 | \r | |
1797 | case R_RISCV_SUB64:\r | |
1798 | CoffAddFixup(\r | |
1799 | (UINT32) ((UINT64) mCoffSectionsOffset[RelShdr->sh_info]\r | |
1800 | + (Rel->r_offset - SecShdr->sh_addr)),\r | |
1801 | EFI_IMAGE_REL_BASED_ABSOLUTE);\r | |
1802 | break;\r | |
1803 | \r | |
1804 | case R_RISCV_ADD32:\r | |
1805 | CoffAddFixup(\r | |
1806 | (UINT32) ((UINT64) mCoffSectionsOffset[RelShdr->sh_info]\r | |
1807 | + (Rel->r_offset - SecShdr->sh_addr)),\r | |
1808 | EFI_IMAGE_REL_BASED_ABSOLUTE);\r | |
1809 | break;\r | |
1810 | \r | |
1811 | case R_RISCV_SUB32:\r | |
1812 | CoffAddFixup(\r | |
1813 | (UINT32) ((UINT64) mCoffSectionsOffset[RelShdr->sh_info]\r | |
1814 | + (Rel->r_offset - SecShdr->sh_addr)),\r | |
1815 | EFI_IMAGE_REL_BASED_ABSOLUTE);\r | |
1816 | break;\r | |
1817 | \r | |
1818 | case R_RISCV_BRANCH:\r | |
1819 | CoffAddFixup(\r | |
1820 | (UINT32) ((UINT64) mCoffSectionsOffset[RelShdr->sh_info]\r | |
1821 | + (Rel->r_offset - SecShdr->sh_addr)),\r | |
1822 | EFI_IMAGE_REL_BASED_ABSOLUTE);\r | |
1823 | break;\r | |
1824 | \r | |
1825 | case R_RISCV_JAL:\r | |
1826 | CoffAddFixup(\r | |
1827 | (UINT32) ((UINT64) mCoffSectionsOffset[RelShdr->sh_info]\r | |
1828 | + (Rel->r_offset - SecShdr->sh_addr)),\r | |
1829 | EFI_IMAGE_REL_BASED_ABSOLUTE);\r | |
1830 | break;\r | |
1831 | \r | |
1832 | case R_RISCV_GPREL_I:\r | |
1833 | case R_RISCV_GPREL_S:\r | |
1834 | case R_RISCV_CALL:\r | |
abfff7c4 | 1835 | case R_RISCV_CALL_PLT:\r |
ad1db975 AC |
1836 | case R_RISCV_RVC_BRANCH:\r |
1837 | case R_RISCV_RVC_JUMP:\r | |
1838 | case R_RISCV_RELAX:\r | |
1839 | case R_RISCV_SUB6:\r | |
1840 | case R_RISCV_SET6:\r | |
1841 | case R_RISCV_SET8:\r | |
1842 | case R_RISCV_SET16:\r | |
1843 | case R_RISCV_SET32:\r | |
1844 | case R_RISCV_PCREL_HI20:\r | |
abfff7c4 | 1845 | case R_RISCV_GOT_HI20:\r |
ad1db975 | 1846 | case R_RISCV_PCREL_LO12_I:\r |
c32c5911 | 1847 | case R_RISCV_PCREL_LO12_S:\r |
ad1db975 AC |
1848 | break;\r |
1849 | \r | |
1850 | default:\r | |
1851 | Error (NULL, 0, 3000, "Invalid", "WriteRelocations64(): %s unsupported ELF EM_RISCV64 relocation 0x%x.", mInImageName, (unsigned) ELF_R_TYPE(Rel->r_info));\r | |
1852 | }\r | |
f51461c8 LG |
1853 | } else {\r |
1854 | Error (NULL, 0, 3000, "Not Supported", "This tool does not support relocations for ELF with e_machine %u (processor type).", (unsigned) mEhdr->e_machine);\r | |
1855 | }\r | |
1856 | }\r | |
ecbaa856 Z |
1857 | if (mEhdr->e_machine == EM_X86_64 && RelShdr->sh_info == mGOTShindex) {\r |
1858 | //\r | |
1859 | // Tack relocations for GOT entries after other relocations for\r | |
1860 | // the section the GOT is in, as it's usually found at the end\r | |
1861 | // of the section. This is done in order to maintain Rva order\r | |
1862 | // of Coff relocations.\r | |
1863 | //\r | |
1864 | EmitGOTRelocations();\r | |
1865 | }\r | |
f51461c8 LG |
1866 | }\r |
1867 | }\r | |
1868 | }\r | |
1869 | \r | |
ecbaa856 Z |
1870 | if (mEhdr->e_machine == EM_X86_64) {\r |
1871 | //\r | |
1872 | // This is a safety net just in case the GOT is in a section\r | |
1873 | // with no other relocations and the first invocation of\r | |
1874 | // EmitGOTRelocations() above was skipped. This invocation\r | |
1875 | // does not maintain Rva order of Coff relocations.\r | |
1876 | // At present, with a single text section, all references to\r | |
1877 | // the GOT and the GOT itself reside in section .text, so\r | |
1878 | // if there's a GOT at all, the first invocation above\r | |
1879 | // is executed.\r | |
1880 | //\r | |
1881 | EmitGOTRelocations();\r | |
1882 | }\r | |
f51461c8 LG |
1883 | //\r |
1884 | // Pad by adding empty entries.\r | |
1885 | //\r | |
1886 | while (mCoffOffset & (mCoffAlignment - 1)) {\r | |
1887 | CoffAddFixupEntry(0);\r | |
1888 | }\r | |
1889 | \r | |
1890 | NtHdr = (EFI_IMAGE_OPTIONAL_HEADER_UNION *)(mCoffFile + mNtHdrOffset);\r | |
1891 | Dir = &NtHdr->Pe32Plus.OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC];\r | |
1892 | Dir->Size = mCoffOffset - mRelocOffset;\r | |
1893 | if (Dir->Size == 0) {\r | |
1894 | // If no relocations, null out the directory entry and don't add the .reloc section\r | |
1895 | Dir->VirtualAddress = 0;\r | |
1896 | NtHdr->Pe32Plus.FileHeader.NumberOfSections--;\r | |
1897 | } else {\r | |
1898 | Dir->VirtualAddress = mRelocOffset;\r | |
1899 | CreateSectionHeader (".reloc", mRelocOffset, mCoffOffset - mRelocOffset,\r | |
1900 | EFI_IMAGE_SCN_CNT_INITIALIZED_DATA\r | |
1901 | | EFI_IMAGE_SCN_MEM_DISCARDABLE\r | |
1902 | | EFI_IMAGE_SCN_MEM_READ);\r | |
1903 | }\r | |
1904 | }\r | |
1905 | \r | |
1906 | STATIC\r | |
1907 | VOID\r | |
1908 | WriteDebug64 (\r | |
1909 | VOID\r | |
1910 | )\r | |
1911 | {\r | |
1912 | UINT32 Len;\r | |
f51461c8 LG |
1913 | EFI_IMAGE_OPTIONAL_HEADER_UNION *NtHdr;\r |
1914 | EFI_IMAGE_DATA_DIRECTORY *DataDir;\r | |
1915 | EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *Dir;\r | |
1916 | EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY *Nb10;\r | |
1917 | \r | |
1918 | Len = strlen(mInImageName) + 1;\r | |
f51461c8 | 1919 | \r |
0192b71c | 1920 | Dir = (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY*)(mCoffFile + mDebugOffset);\r |
f51461c8 LG |
1921 | Dir->Type = EFI_IMAGE_DEBUG_TYPE_CODEVIEW;\r |
1922 | Dir->SizeOfData = sizeof(EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY) + Len;\r | |
0192b71c AB |
1923 | Dir->RVA = mDebugOffset + sizeof(EFI_IMAGE_DEBUG_DIRECTORY_ENTRY);\r |
1924 | Dir->FileOffset = mDebugOffset + sizeof(EFI_IMAGE_DEBUG_DIRECTORY_ENTRY);\r | |
f51461c8 LG |
1925 | \r |
1926 | Nb10 = (EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY*)(Dir + 1);\r | |
1927 | Nb10->Signature = CODEVIEW_SIGNATURE_NB10;\r | |
1928 | strcpy ((char *)(Nb10 + 1), mInImageName);\r | |
1929 | \r | |
1930 | \r | |
1931 | NtHdr = (EFI_IMAGE_OPTIONAL_HEADER_UNION *)(mCoffFile + mNtHdrOffset);\r | |
1932 | DataDir = &NtHdr->Pe32Plus.OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_DEBUG];\r | |
0192b71c | 1933 | DataDir->VirtualAddress = mDebugOffset;\r |
60e85a39 | 1934 | DataDir->Size = sizeof(EFI_IMAGE_DEBUG_DIRECTORY_ENTRY);\r |
f51461c8 LG |
1935 | }\r |
1936 | \r | |
1937 | STATIC\r | |
1938 | VOID\r | |
1939 | SetImageSize64 (\r | |
1940 | VOID\r | |
1941 | )\r | |
1942 | {\r | |
1943 | EFI_IMAGE_OPTIONAL_HEADER_UNION *NtHdr;\r | |
1944 | \r | |
1945 | //\r | |
1946 | // Set image size\r | |
1947 | //\r | |
1948 | NtHdr = (EFI_IMAGE_OPTIONAL_HEADER_UNION *)(mCoffFile + mNtHdrOffset);\r | |
1949 | NtHdr->Pe32Plus.OptionalHeader.SizeOfImage = mCoffOffset;\r | |
1950 | }\r | |
1951 | \r | |
1952 | STATIC\r | |
1953 | VOID\r | |
1954 | CleanUp64 (\r | |
1955 | VOID\r | |
1956 | )\r | |
1957 | {\r | |
1958 | if (mCoffSectionsOffset != NULL) {\r | |
1959 | free (mCoffSectionsOffset);\r | |
1960 | }\r | |
1961 | }\r | |
1962 | \r | |
414cd2a4 HLX |
1963 | STATIC\r |
1964 | VOID\r | |
1965 | WriteExport64 (\r | |
1966 | VOID\r | |
1967 | )\r | |
1968 | {\r | |
1969 | EFI_IMAGE_OPTIONAL_HEADER_UNION *NtHdr;\r | |
1970 | EFI_IMAGE_EXPORT_DIRECTORY *ExportDir;\r | |
1971 | EFI_IMAGE_DATA_DIRECTORY *DataDir;\r | |
1972 | UINT32 FileNameOffset;\r | |
1973 | UINT32 NameOffset;\r | |
1974 | UINT16 Index;\r | |
1975 | UINT8 *Tdata = NULL;\r | |
1976 | \r | |
1977 | ExportDir = (EFI_IMAGE_EXPORT_DIRECTORY*)(mCoffFile + mExportOffset);\r | |
1978 | ExportDir->Characteristics = 0;\r | |
1979 | ExportDir->TimeDateStamp = 0;\r | |
1980 | ExportDir->MajorVersion = 0;\r | |
1981 | ExportDir->MinorVersion =0;\r | |
1982 | ExportDir->Name = 0;\r | |
1983 | ExportDir->NumberOfFunctions = mExportSymNum;\r | |
1984 | ExportDir->NumberOfNames = mExportSymNum;\r | |
1985 | ExportDir->Base = EFI_IMAGE_EXPORT_ORDINAL_BASE;\r | |
1986 | ExportDir->AddressOfFunctions = mExportOffset + sizeof(EFI_IMAGE_EXPORT_DIRECTORY);\r | |
1987 | ExportDir->AddressOfNames = ExportDir->AddressOfFunctions + EFI_IMAGE_EXPORT_ADDR_SIZE * mExportSymNum;\r | |
1988 | ExportDir->AddressOfNameOrdinals = ExportDir->AddressOfNames + EFI_IMAGE_EXPORT_ADDR_SIZE * mExportSymNum;\r | |
1989 | \r | |
1990 | FileNameOffset = ExportDir->AddressOfNameOrdinals + EFI_IMAGE_EXPORT_ORDINAL_SIZE * mExportSymNum;\r | |
1991 | NameOffset = FileNameOffset + strlen(mInImageName) + 1;\r | |
1992 | \r | |
1993 | // Write Input image Name RVA\r | |
1994 | ExportDir->Name = FileNameOffset;\r | |
1995 | \r | |
1996 | // Write Input image Name\r | |
1997 | strcpy((char *)(mCoffFile + FileNameOffset), mInImageName);\r | |
1998 | \r | |
1999 | for (Index = 0; Index < mExportSymNum; Index++) {\r | |
2000 | //\r | |
2001 | // Write Export Address Table\r | |
2002 | //\r | |
2003 | Tdata = mCoffFile + ExportDir->AddressOfFunctions + Index * EFI_IMAGE_EXPORT_ADDR_SIZE;\r | |
2004 | *(UINT32 *)Tdata = mExportRVA[Index];\r | |
2005 | \r | |
2006 | //\r | |
2007 | // Write Export Name Pointer Table\r | |
2008 | //\r | |
2009 | Tdata = mCoffFile + ExportDir->AddressOfNames + Index * EFI_IMAGE_EXPORT_ADDR_SIZE;\r | |
2010 | *(UINT32 *)Tdata = NameOffset;\r | |
2011 | \r | |
2012 | //\r | |
2013 | // Write Export Ordinal table\r | |
2014 | //\r | |
2015 | Tdata = mCoffFile + ExportDir->AddressOfNameOrdinals + Index * EFI_IMAGE_EXPORT_ORDINAL_SIZE;\r | |
2016 | *(UINT16 *)Tdata = Index;\r | |
2017 | \r | |
2018 | //\r | |
2019 | // Write Export Name Table\r | |
2020 | //\r | |
2021 | strcpy((char *)(mCoffFile + NameOffset), mExportSymName[Index]);\r | |
2022 | NameOffset += strlen(mExportSymName[Index]) + 1;\r | |
2023 | }\r | |
2024 | \r | |
2025 | NtHdr = (EFI_IMAGE_OPTIONAL_HEADER_UNION *)(mCoffFile + mNtHdrOffset);\r | |
2026 | DataDir = &NtHdr->Pe32Plus.OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_EXPORT];\r | |
2027 | DataDir->VirtualAddress = mExportOffset;\r | |
2028 | DataDir->Size = mExportSize;\r | |
2029 | \r | |
2030 | }\r | |
f51461c8 | 2031 | \r |