16 #ifndef LLVM_OBJECT_RELOCVISITOR_H
17 #define LLVM_OBJECT_RELOCVISITOR_H
47 : ObjToVisit(Obj), HasError(
false) {}
53 if (isa<ELFObjectFileBase>(ObjToVisit))
54 return visitELF(RelocType, R,
Value);
55 if (isa<COFFObjectFile>(ObjToVisit))
56 return visitCOFF(RelocType, R,
Value);
57 if (isa<MachOObjectFile>(ObjToVisit))
58 return visitMachO(RelocType, R,
Value);
64 bool error() {
return HasError; }
75 case llvm::ELF::R_X86_64_NONE:
76 return visitELF_X86_64_NONE(R);
77 case llvm::ELF::R_X86_64_64:
78 return visitELF_X86_64_64(R, Value);
79 case llvm::ELF::R_X86_64_PC32:
80 return visitELF_X86_64_PC32(R, Value);
81 case llvm::ELF::R_X86_64_32:
82 return visitELF_X86_64_32(R, Value);
83 case llvm::ELF::R_X86_64_32S:
84 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_MIPS_32:
103 return visitELF_MIPS64_32(R, Value);
104 case llvm::ELF::R_MIPS_64:
105 return visitELF_MIPS64_64(R, Value);
108 return RelocToApply();
113 case llvm::ELF::R_PPC64_ADDR32:
114 return visitELF_PPC64_ADDR32(R, Value);
115 case llvm::ELF::R_PPC64_ADDR64:
116 return visitELF_PPC64_ADDR64(R, Value);
119 return RelocToApply();
123 case llvm::ELF::R_390_32:
124 return visitELF_390_32(R, Value);
125 case llvm::ELF::R_390_64:
126 return visitELF_390_64(R, Value);
129 return RelocToApply();
133 case llvm::ELF::R_SPARC_32:
134 case llvm::ELF::R_SPARC_UA32:
135 return visitELF_SPARCV9_32(R, Value);
136 case llvm::ELF::R_SPARC_64:
137 case llvm::ELF::R_SPARC_UA64:
138 return visitELF_SPARCV9_64(R, Value);
141 return RelocToApply();
145 return RelocToApply();
148 switch (ObjToVisit.
getArch()) {
151 case llvm::ELF::R_386_NONE:
152 return visitELF_386_NONE(R);
153 case llvm::ELF::R_386_32:
154 return visitELF_386_32(R, Value);
155 case llvm::ELF::R_386_PC32:
156 return visitELF_386_PC32(R, Value);
159 return RelocToApply();
163 case llvm::ELF::R_PPC_ADDR32:
164 return visitELF_PPC_ADDR32(R, Value);
167 return RelocToApply();
174 return RelocToApply();
175 case llvm::ELF::R_ARM_ABS32:
176 return visitELF_ARM_ABS32(R, Value);
181 case llvm::ELF::R_MIPS_32:
182 return visitELF_MIPS_32(R, Value);
185 return RelocToApply();
189 case llvm::ELF::R_SPARC_32:
190 case llvm::ELF::R_SPARC_UA32:
191 return visitELF_SPARC_32(R, Value);
194 return RelocToApply();
198 return RelocToApply();
205 RelocToApply visitCOFF(uint32_t RelocType, RelocationRef R, uint64_t Value) {
206 switch (ObjToVisit.
getArch()) {
210 return visitCOFF_I386_SECREL(R, Value);
212 return visitCOFF_I386_DIR32(R, Value);
218 return visitCOFF_AMD64_SECREL(R, Value);
220 return visitCOFF_AMD64_ADDR64(R, Value);
225 return RelocToApply();
228 RelocToApply visitMachO(uint32_t RelocType, RelocationRef R, uint64_t Value) {
229 switch (ObjToVisit.
getArch()) {
235 return visitMACHO_X86_64_UNSIGNED(R, Value);
239 return RelocToApply();
242 int64_t getELFAddend(RelocationRef R) {
243 ErrorOr<int64_t> AddendOrErr = ELFRelocationRef(R).getAddend();
244 if (std::error_code EC = AddendOrErr.getError())
249 uint8_t getLengthMachO64(RelocationRef R) {
250 const MachOObjectFile *Obj = cast<MachOObjectFile>(R.getObject());
251 return Obj->getRelocationLength(R.getRawDataRefImpl());
257 RelocToApply visitELF_386_NONE(RelocationRef R) {
258 return RelocToApply(0, 0);
263 RelocToApply visitELF_386_32(RelocationRef R, uint64_t Value) {
264 return RelocToApply(Value, 4);
267 RelocToApply visitELF_386_PC32(RelocationRef R, uint64_t Value) {
268 uint64_t
Address = R.getOffset();
269 return RelocToApply(Value - Address, 4);
273 RelocToApply visitELF_X86_64_NONE(RelocationRef R) {
274 return RelocToApply(0, 0);
276 RelocToApply visitELF_X86_64_64(RelocationRef R, uint64_t Value) {
277 int64_t Addend = getELFAddend(R);
278 return RelocToApply(Value + Addend, 8);
280 RelocToApply visitELF_X86_64_PC32(RelocationRef R, uint64_t Value) {
281 int64_t Addend = getELFAddend(R);
282 uint64_t Address = R.getOffset();
283 return RelocToApply(Value + Addend - Address, 4);
285 RelocToApply visitELF_X86_64_32(RelocationRef R, uint64_t Value) {
286 int64_t Addend = getELFAddend(R);
287 uint32_t Res = (Value + Addend) & 0xFFFFFFFF;
288 return RelocToApply(Res, 4);
290 RelocToApply visitELF_X86_64_32S(RelocationRef R, uint64_t Value) {
291 int64_t Addend = getELFAddend(R);
292 int32_t Res = (Value + Addend) & 0xFFFFFFFF;
293 return RelocToApply(Res, 4);
297 RelocToApply visitELF_PPC64_ADDR32(RelocationRef R, uint64_t Value) {
298 int64_t Addend = getELFAddend(R);
299 uint32_t Res = (Value + Addend) & 0xFFFFFFFF;
300 return RelocToApply(Res, 4);
302 RelocToApply visitELF_PPC64_ADDR64(RelocationRef R, uint64_t Value) {
303 int64_t Addend = getELFAddend(R);
304 return RelocToApply(Value + Addend, 8);
308 RelocToApply visitELF_PPC_ADDR32(RelocationRef R, uint64_t Value) {
309 int64_t Addend = getELFAddend(R);
310 uint32_t Res = (Value + Addend) & 0xFFFFFFFF;
311 return RelocToApply(Res, 4);
315 RelocToApply visitELF_MIPS_32(RelocationRef R, uint64_t Value) {
316 uint32_t Res = Value & 0xFFFFFFFF;
317 return RelocToApply(Res, 4);
321 RelocToApply visitELF_MIPS64_32(RelocationRef R, uint64_t Value) {
322 int64_t Addend = getELFAddend(R);
323 uint32_t Res = (Value + Addend) & 0xFFFFFFFF;
324 return RelocToApply(Res, 4);
327 RelocToApply visitELF_MIPS64_64(RelocationRef R, uint64_t Value) {
328 int64_t Addend = getELFAddend(R);
329 uint64_t Res = (Value + Addend);
330 return RelocToApply(Res, 8);
334 RelocToApply visitELF_AARCH64_ABS32(RelocationRef R, uint64_t Value) {
335 int64_t Addend = getELFAddend(R);
336 int64_t Res = Value + Addend;
339 if (Res < INT32_MIN || Res > UINT32_MAX)
342 return RelocToApply(static_cast<uint32_t>(Res), 4);
345 RelocToApply visitELF_AARCH64_ABS64(RelocationRef R, uint64_t Value) {
346 int64_t Addend = getELFAddend(R);
347 return RelocToApply(Value + Addend, 8);
351 RelocToApply visitELF_390_32(RelocationRef R, uint64_t Value) {
352 int64_t Addend = getELFAddend(R);
353 int64_t Res = Value + Addend;
356 if (Res < INT32_MIN || Res > UINT32_MAX)
359 return RelocToApply(static_cast<uint32_t>(Res), 4);
362 RelocToApply visitELF_390_64(RelocationRef R, uint64_t Value) {
363 int64_t Addend = getELFAddend(R);
364 return RelocToApply(Value + Addend, 8);
367 RelocToApply visitELF_SPARC_32(RelocationRef R, uint32_t Value) {
368 int32_t Addend = getELFAddend(R);
369 return RelocToApply(Value + Addend, 4);
372 RelocToApply visitELF_SPARCV9_32(RelocationRef R, uint64_t Value) {
373 int32_t Addend = getELFAddend(R);
374 return RelocToApply(Value + Addend, 4);
377 RelocToApply visitELF_SPARCV9_64(RelocationRef R, uint64_t Value) {
378 int64_t Addend = getELFAddend(R);
379 return RelocToApply(Value + Addend, 8);
382 RelocToApply visitELF_ARM_ABS32(RelocationRef R, uint64_t Value) {
386 if (Res < INT32_MIN || Res > UINT32_MAX)
389 return RelocToApply(static_cast<uint32_t>(Res), 4);
393 RelocToApply visitCOFF_I386_SECREL(RelocationRef R, uint64_t Value) {
394 return RelocToApply(static_cast<uint32_t>(Value), 4);
397 RelocToApply visitCOFF_I386_DIR32(RelocationRef R, uint64_t Value) {
398 return RelocToApply(static_cast<uint32_t>(Value), 4);
402 RelocToApply visitCOFF_AMD64_SECREL(RelocationRef R, uint64_t Value) {
403 return RelocToApply(static_cast<uint32_t>(Value), 4);
406 RelocToApply visitCOFF_AMD64_ADDR64(RelocationRef R, uint64_t Value) {
407 return RelocToApply(Value, 8);
411 RelocToApply visitMACHO_X86_64_UNSIGNED(RelocationRef R, uint64_t Value) {
412 uint8_t Length = getLengthMachO64(R);
414 return RelocToApply(Value, Length);
RelocToApply visit(uint32_t RelocType, RelocationRef R, uint64_t Value=0)
RelocVisitor(const ObjectFile &Obj)
This class is the base class for all object file types.
virtual unsigned getArch() const =0
LLVM_ATTRIBUTE_NORETURN void report_fatal_error(const char *reason, bool gen_crash_diag=true)
Reports a serious error, calling any installed error handler.
This is a value type class that represents a single relocation in the list of relocations in the obje...
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.