16 #ifndef LLVM_OBJECT_RELOCVISITOR_H
17 #define LLVM_OBJECT_RELOCVISITOR_H
46 : ObjToVisit(Obj), HasError(
false) {}
52 if (isa<ELFObjectFileBase>(ObjToVisit))
53 return visitELF(RelocType, R,
Value);
54 if (isa<COFFObjectFile>(ObjToVisit))
55 return visitCOFF(RelocType, R,
Value);
56 if (isa<MachOObjectFile>(ObjToVisit))
57 return visitMachO(RelocType, R,
Value);
63 bool error() {
return HasError; }
74 case llvm::ELF::R_X86_64_NONE:
75 return visitELF_X86_64_NONE(R);
76 case llvm::ELF::R_X86_64_64:
77 return visitELF_X86_64_64(R, Value);
78 case llvm::ELF::R_X86_64_PC32:
79 return visitELF_X86_64_PC32(R, Value);
80 case llvm::ELF::R_X86_64_32:
81 return visitELF_X86_64_32(R, Value);
82 case llvm::ELF::R_X86_64_32S:
83 return visitELF_X86_64_32S(R, Value);
91 case llvm::ELF::R_AARCH64_ABS32:
92 return visitELF_AARCH64_ABS32(R, Value);
93 case llvm::ELF::R_AARCH64_ABS64:
94 return visitELF_AARCH64_ABS64(R, Value);
102 case llvm::ELF::R_BPF_64_64:
103 return visitELF_BPF_64_64(R, Value);
104 case llvm::ELF::R_BPF_64_32:
105 return visitELF_BPF_64_32(R, Value);
108 return RelocToApply();
113 case llvm::ELF::R_MIPS_32:
114 return visitELF_MIPS64_32(R, Value);
115 case llvm::ELF::R_MIPS_64:
116 return visitELF_MIPS64_64(R, Value);
119 return RelocToApply();
124 case llvm::ELF::R_PPC64_ADDR32:
125 return visitELF_PPC64_ADDR32(R, Value);
126 case llvm::ELF::R_PPC64_ADDR64:
127 return visitELF_PPC64_ADDR64(R, Value);
130 return RelocToApply();
134 case llvm::ELF::R_390_32:
135 return visitELF_390_32(R, Value);
136 case llvm::ELF::R_390_64:
137 return visitELF_390_64(R, Value);
140 return RelocToApply();
144 case llvm::ELF::R_SPARC_32:
145 case llvm::ELF::R_SPARC_UA32:
146 return visitELF_SPARCV9_32(R, Value);
147 case llvm::ELF::R_SPARC_64:
148 case llvm::ELF::R_SPARC_UA64:
149 return visitELF_SPARCV9_64(R, Value);
152 return RelocToApply();
156 case llvm::ELF::R_AMDGPU_ABS32:
157 return visitELF_AMDGPU_ABS32(R, Value);
160 return RelocToApply();
164 return RelocToApply();
167 switch (ObjToVisit.
getArch()) {
170 case llvm::ELF::R_386_NONE:
171 return visitELF_386_NONE(R);
172 case llvm::ELF::R_386_32:
173 return visitELF_386_32(R, Value);
174 case llvm::ELF::R_386_PC32:
175 return visitELF_386_PC32(R, Value);
178 return RelocToApply();
182 case llvm::ELF::R_PPC_ADDR32:
183 return visitELF_PPC_ADDR32(R, Value);
186 return RelocToApply();
193 return RelocToApply();
194 case llvm::ELF::R_ARM_ABS32:
195 return visitELF_ARM_ABS32(R, Value);
199 case llvm::ELF::R_LANAI_32:
200 return visitELF_Lanai_32(R, Value);
203 return RelocToApply();
208 case llvm::ELF::R_MIPS_32:
209 return visitELF_MIPS_32(R, Value);
212 return RelocToApply();
216 case llvm::ELF::R_SPARC_32:
217 case llvm::ELF::R_SPARC_UA32:
218 return visitELF_SPARC_32(R, Value);
221 return RelocToApply();
225 case llvm::ELF::R_HEX_32:
226 return visitELF_HEX_32(R, Value);
229 return RelocToApply();
233 return RelocToApply();
240 RelocToApply visitCOFF(
uint32_t RelocType, RelocationRef R, uint64_t Value) {
241 switch (ObjToVisit.
getArch()) {
245 return visitCOFF_I386_SECREL(R, Value);
247 return visitCOFF_I386_DIR32(R, Value);
253 return visitCOFF_AMD64_SECREL(R, Value);
255 return visitCOFF_AMD64_ADDR64(R, Value);
260 return RelocToApply();
263 RelocToApply visitMachO(
uint32_t RelocType, RelocationRef R, uint64_t Value) {
264 switch (ObjToVisit.
getArch()) {
270 return visitMACHO_X86_64_UNSIGNED(R, Value);
274 return RelocToApply();
277 int64_t getELFAddend(RelocationRef R) {
278 ErrorOr<int64_t> AddendOrErr = ELFRelocationRef(R).getAddend();
279 if (std::error_code EC = AddendOrErr.getError())
284 uint8_t getLengthMachO64(RelocationRef R) {
285 const MachOObjectFile *Obj = cast<MachOObjectFile>(R.getObject());
286 return Obj->getRelocationLength(R.getRawDataRefImpl());
292 RelocToApply visitELF_386_NONE(RelocationRef R) {
293 return RelocToApply(0, 0);
298 RelocToApply visitELF_386_32(RelocationRef R, uint64_t Value) {
299 return RelocToApply(Value, 4);
302 RelocToApply visitELF_386_PC32(RelocationRef R, uint64_t Value) {
303 uint64_t
Address = R.getOffset();
304 return RelocToApply(Value - Address, 4);
308 RelocToApply visitELF_X86_64_NONE(RelocationRef R) {
309 return RelocToApply(0, 0);
311 RelocToApply visitELF_X86_64_64(RelocationRef R, uint64_t Value) {
312 int64_t Addend = getELFAddend(R);
313 return RelocToApply(Value + Addend, 8);
315 RelocToApply visitELF_X86_64_PC32(RelocationRef R, uint64_t Value) {
316 int64_t Addend = getELFAddend(R);
317 uint64_t Address = R.getOffset();
318 return RelocToApply(Value + Addend - Address, 4);
320 RelocToApply visitELF_X86_64_32(RelocationRef R, uint64_t Value) {
321 int64_t Addend = getELFAddend(R);
322 uint32_t Res = (Value + Addend) & 0xFFFFFFFF;
323 return RelocToApply(Res, 4);
325 RelocToApply visitELF_X86_64_32S(RelocationRef R, uint64_t Value) {
326 int64_t Addend = getELFAddend(R);
327 int32_t Res = (Value + Addend) & 0xFFFFFFFF;
328 return RelocToApply(Res, 4);
332 RelocToApply visitELF_BPF_64_32(RelocationRef R, uint64_t Value) {
334 return RelocToApply(Res, 4);
336 RelocToApply visitELF_BPF_64_64(RelocationRef R, uint64_t Value) {
337 return RelocToApply(Value, 8);
341 RelocToApply visitELF_PPC64_ADDR32(RelocationRef R, uint64_t Value) {
342 int64_t Addend = getELFAddend(R);
343 uint32_t Res = (Value + Addend) & 0xFFFFFFFF;
344 return RelocToApply(Res, 4);
346 RelocToApply visitELF_PPC64_ADDR64(RelocationRef R, uint64_t Value) {
347 int64_t Addend = getELFAddend(R);
348 return RelocToApply(Value + Addend, 8);
352 RelocToApply visitELF_PPC_ADDR32(RelocationRef R, uint64_t Value) {
353 int64_t Addend = getELFAddend(R);
354 uint32_t Res = (Value + Addend) & 0xFFFFFFFF;
355 return RelocToApply(Res, 4);
359 RelocToApply visitELF_Lanai_32(RelocationRef R, uint64_t Value) {
360 int64_t Addend = getELFAddend(R);
361 uint32_t Res = (Value + Addend) & 0xFFFFFFFF;
362 return RelocToApply(Res, 4);
366 RelocToApply visitELF_MIPS_32(RelocationRef R, uint64_t Value) {
368 return RelocToApply(Res, 4);
372 RelocToApply visitELF_MIPS64_32(RelocationRef R, uint64_t Value) {
373 int64_t Addend = getELFAddend(R);
374 uint32_t Res = (Value + Addend) & 0xFFFFFFFF;
375 return RelocToApply(Res, 4);
378 RelocToApply visitELF_MIPS64_64(RelocationRef R, uint64_t Value) {
379 int64_t Addend = getELFAddend(R);
380 uint64_t Res = (Value + Addend);
381 return RelocToApply(Res, 8);
385 RelocToApply visitELF_AARCH64_ABS32(RelocationRef R, uint64_t Value) {
386 int64_t Addend = getELFAddend(R);
387 int64_t Res = Value + Addend;
390 if (Res < INT32_MIN || Res > UINT32_MAX)
393 return RelocToApply(static_cast<uint32_t>(Res), 4);
396 RelocToApply visitELF_AARCH64_ABS64(RelocationRef R, uint64_t Value) {
397 int64_t Addend = getELFAddend(R);
398 return RelocToApply(Value + Addend, 8);
402 RelocToApply visitELF_390_32(RelocationRef R, uint64_t Value) {
403 int64_t Addend = getELFAddend(R);
404 int64_t Res = Value + Addend;
407 if (Res < INT32_MIN || Res > UINT32_MAX)
410 return RelocToApply(static_cast<uint32_t>(Res), 4);
413 RelocToApply visitELF_390_64(RelocationRef R, uint64_t Value) {
414 int64_t Addend = getELFAddend(R);
415 return RelocToApply(Value + Addend, 8);
418 RelocToApply visitELF_SPARC_32(RelocationRef R,
uint32_t Value) {
419 int32_t Addend = getELFAddend(R);
420 return RelocToApply(Value + Addend, 4);
423 RelocToApply visitELF_SPARCV9_32(RelocationRef R, uint64_t Value) {
424 int32_t Addend = getELFAddend(R);
425 return RelocToApply(Value + Addend, 4);
428 RelocToApply visitELF_SPARCV9_64(RelocationRef R, uint64_t Value) {
429 int64_t Addend = getELFAddend(R);
430 return RelocToApply(Value + Addend, 8);
433 RelocToApply visitELF_ARM_ABS32(RelocationRef R, uint64_t Value) {
437 if (Res < INT32_MIN || Res > UINT32_MAX)
440 return RelocToApply(static_cast<uint32_t>(Res), 4);
443 RelocToApply visitELF_HEX_32(RelocationRef R, uint64_t Value) {
444 int64_t Addend = getELFAddend(R);
445 return RelocToApply(Value + Addend, 4);
448 RelocToApply visitELF_AMDGPU_ABS32(RelocationRef R, uint64_t Value) {
449 int64_t Addend = getELFAddend(R);
450 return RelocToApply(Value + Addend, 4);
454 RelocToApply visitCOFF_I386_SECREL(RelocationRef R, uint64_t Value) {
455 return RelocToApply(static_cast<uint32_t>(Value), 4);
458 RelocToApply visitCOFF_I386_DIR32(RelocationRef R, uint64_t Value) {
459 return RelocToApply(static_cast<uint32_t>(Value), 4);
463 RelocToApply visitCOFF_AMD64_SECREL(RelocationRef R, uint64_t Value) {
464 return RelocToApply(static_cast<uint32_t>(Value), 4);
467 RelocToApply visitCOFF_AMD64_ADDR64(RelocationRef R, uint64_t Value) {
468 return RelocToApply(Value, 8);
472 RelocToApply visitMACHO_X86_64_UNSIGNED(RelocationRef R, uint64_t Value) {
473 uint8_t Length = getLengthMachO64(R);
475 return RelocToApply(Value, Length);
RelocToApply visit(uint32_t RelocType, RelocationRef R, uint64_t Value=0)
LLVM_ATTRIBUTE_NORETURN void report_fatal_error(Error Err, bool gen_crash_diag=true)
Report a serious error, calling any installed error handler.
RelocVisitor(const ObjectFile &Obj)
This class is the base class for all object file types.
virtual unsigned getArch() const =0
This is a value type class that represents a single relocation in the list of relocations in the obje...
Function Alias Analysis false
virtual uint8_t getBytesInAddress() const =0
The number of bytes used to represent an address in this object file format.
LLVM Value Representation.
RelocToApply(int64_t Value, char Width)
Base class for object file relocation visitors.