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path: root/include/llvm/Object/ELFObjectFile.h
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Diffstat (limited to 'include/llvm/Object/ELFObjectFile.h')
-rw-r--r--include/llvm/Object/ELFObjectFile.h148
1 files changed, 28 insertions, 120 deletions
diff --git a/include/llvm/Object/ELFObjectFile.h b/include/llvm/Object/ELFObjectFile.h
index 9bd4c3241118..78d77be5be8d 100644
--- a/include/llvm/Object/ELFObjectFile.h
+++ b/include/llvm/Object/ELFObjectFile.h
@@ -79,9 +79,8 @@ protected:
StringRef &Res) const override;
std::error_code getSymbolAddress(DataRefImpl Symb,
uint64_t &Res) const override;
- std::error_code getSymbolAlignment(DataRefImpl Symb,
- uint32_t &Res) const override;
- std::error_code getSymbolSize(DataRefImpl Symb, uint64_t &Res) const override;
+ uint32_t getSymbolAlignment(DataRefImpl Symb) const override;
+ uint64_t getSymbolSize(DataRefImpl Symb) const override;
uint32_t getSymbolFlags(DataRefImpl Symb) const override;
std::error_code getSymbolOther(DataRefImpl Symb, uint8_t &Res) const override;
std::error_code getSymbolType(DataRefImpl Symb,
@@ -119,9 +118,6 @@ protected:
std::error_code
getRelocationTypeName(DataRefImpl Rel,
SmallVectorImpl<char> &Result) const override;
- std::error_code
- getRelocationValueString(DataRefImpl Rel,
- SmallVectorImpl<char> &Result) const override;
uint64_t getROffset(DataRefImpl Rel) const;
StringRef getRelocationTypeName(uint32_t Type) const;
@@ -227,7 +223,7 @@ public:
std::error_code getPlatformFlags(unsigned &Result) const override {
Result = EF.getHeader()->e_flags;
- return object_error::success;
+ return std::error_code();
}
const ELFFile<ELFT> *getELFFile() const { return &EF; }
@@ -244,12 +240,10 @@ public:
bool isRelocatableObject() const override;
};
-// Use an alignment of 2 for the typedefs since that is the worst case for
-// ELF files in archives.
-typedef ELFObjectFile<ELFType<support::little, 2, false> > ELF32LEObjectFile;
-typedef ELFObjectFile<ELFType<support::little, 2, true> > ELF64LEObjectFile;
-typedef ELFObjectFile<ELFType<support::big, 2, false> > ELF32BEObjectFile;
-typedef ELFObjectFile<ELFType<support::big, 2, true> > ELF64BEObjectFile;
+typedef ELFObjectFile<ELFType<support::little, false>> ELF32LEObjectFile;
+typedef ELFObjectFile<ELFType<support::little, true>> ELF64LEObjectFile;
+typedef ELFObjectFile<ELFType<support::big, false>> ELF32BEObjectFile;
+typedef ELFObjectFile<ELFType<support::big, true>> ELF64BEObjectFile;
template <class ELFT>
void ELFObjectFile<ELFT>::moveSymbolNext(DataRefImpl &Symb) const {
@@ -263,7 +257,7 @@ std::error_code ELFObjectFile<ELFT>::getSymbolName(DataRefImpl Symb,
if (!Name)
return Name.getError();
Result = *Name;
- return object_error::success;
+ return std::error_code();
}
template <class ELFT>
@@ -277,7 +271,7 @@ std::error_code ELFObjectFile<ELFT>::getSymbolVersion(SymbolRef SymRef,
if (!Ver)
return Ver.getError();
Version = *Ver;
- return object_error::success;
+ return std::error_code();
}
template <class ELFT>
@@ -300,10 +294,10 @@ std::error_code ELFObjectFile<ELFT>::getSymbolAddress(DataRefImpl Symb,
case ELF::SHN_COMMON:
case ELF::SHN_UNDEF:
Result = UnknownAddressOrSize;
- return object_error::success;
+ return std::error_code();
case ELF::SHN_ABS:
Result = ESym->st_value;
- return object_error::success;
+ return std::error_code();
default:
break;
}
@@ -322,32 +316,27 @@ std::error_code ELFObjectFile<ELFT>::getSymbolAddress(DataRefImpl Symb,
Result += Section->sh_addr;
}
- return object_error::success;
+ return std::error_code();
}
template <class ELFT>
-std::error_code ELFObjectFile<ELFT>::getSymbolAlignment(DataRefImpl Symb,
- uint32_t &Res) const {
+uint32_t ELFObjectFile<ELFT>::getSymbolAlignment(DataRefImpl Symb) const {
Elf_Sym_Iter Sym = toELFSymIter(Symb);
if (Sym->st_shndx == ELF::SHN_COMMON)
- Res = Sym->st_value;
- else
- Res = 0;
- return object_error::success;
+ return Sym->st_value;
+ return 0;
}
template <class ELFT>
-std::error_code ELFObjectFile<ELFT>::getSymbolSize(DataRefImpl Symb,
- uint64_t &Result) const {
- Result = toELFSymIter(Symb)->st_size;
- return object_error::success;
+uint64_t ELFObjectFile<ELFT>::getSymbolSize(DataRefImpl Symb) const {
+ return toELFSymIter(Symb)->st_size;
}
template <class ELFT>
std::error_code ELFObjectFile<ELFT>::getSymbolOther(DataRefImpl Symb,
uint8_t &Result) const {
Result = toELFSymIter(Symb)->st_other;
- return object_error::success;
+ return std::error_code();
}
template <class ELFT>
@@ -378,7 +367,7 @@ ELFObjectFile<ELFT>::getSymbolType(DataRefImpl Symb,
Result = SymbolRef::ST_Other;
break;
}
- return object_error::success;
+ return std::error_code();
}
template <class ELFT>
@@ -435,7 +424,7 @@ std::error_code
ELFObjectFile<ELFT>::getSymbolSection(DataRefImpl Symb,
section_iterator &Res) const {
Res = getSymbolSection(getSymbol(Symb));
- return object_error::success;
+ return std::error_code();
}
template <class ELFT>
@@ -450,7 +439,7 @@ std::error_code ELFObjectFile<ELFT>::getSectionName(DataRefImpl Sec,
if (!Name)
return Name.getError();
Result = *Name;
- return object_error::success;
+ return std::error_code();
}
template <class ELFT>
@@ -469,7 +458,7 @@ ELFObjectFile<ELFT>::getSectionContents(DataRefImpl Sec,
StringRef &Result) const {
Elf_Shdr_Iter EShdr = toELFShdrIter(Sec);
Result = StringRef((const char *)base() + EShdr->sh_offset, EShdr->sh_size);
- return object_error::success;
+ return std::error_code();
}
template <class ELFT>
@@ -624,7 +613,7 @@ ELFObjectFile<ELFT>::getRelocationAddress(DataRefImpl Rel,
Result = ROffset;
}
- return object_error::success;
+ return std::error_code();
}
template <class ELFT>
@@ -634,7 +623,7 @@ ELFObjectFile<ELFT>::getRelocationOffset(DataRefImpl Rel,
assert(EF.getHeader()->e_type == ELF::ET_REL &&
"Only relocatable object files have relocation offsets");
Result = getROffset(Rel);
- return object_error::success;
+ return std::error_code();
}
template <class ELFT>
@@ -666,7 +655,7 @@ std::error_code ELFObjectFile<ELFT>::getRelocationType(DataRefImpl Rel,
break;
}
}
- return object_error::success;
+ return std::error_code();
}
template <class ELFT>
@@ -693,7 +682,7 @@ std::error_code ELFObjectFile<ELFT>::getRelocationTypeName(
}
EF.getRelocationTypeName(type, Result);
- return object_error::success;
+ return std::error_code();
}
template <class ELFT>
@@ -706,94 +695,13 @@ ELFObjectFile<ELFT>::getRelocationAddend(DataRefImpl Rel,
report_fatal_error("Invalid section type in Rel!");
case ELF::SHT_REL: {
Result = 0;
- return object_error::success;
+ return std::error_code();
}
case ELF::SHT_RELA: {
Result = getRela(Rel)->r_addend;
- return object_error::success;
- }
+ return std::error_code();
}
-}
-
-template <class ELFT>
-std::error_code ELFObjectFile<ELFT>::getRelocationValueString(
- DataRefImpl Rel, SmallVectorImpl<char> &Result) const {
- const Elf_Shdr *sec = getRelSection(Rel);
- uint8_t type;
- StringRef res;
- int64_t addend = 0;
- uint16_t symbol_index = 0;
- switch (sec->sh_type) {
- default:
- return object_error::parse_failed;
- case ELF::SHT_REL: {
- type = getRel(Rel)->getType(EF.isMips64EL());
- symbol_index = getRel(Rel)->getSymbol(EF.isMips64EL());
- // TODO: Read implicit addend from section data.
- break;
- }
- case ELF::SHT_RELA: {
- type = getRela(Rel)->getType(EF.isMips64EL());
- symbol_index = getRela(Rel)->getSymbol(EF.isMips64EL());
- addend = getRela(Rel)->r_addend;
- break;
- }
- }
- const Elf_Sym *symb =
- EF.template getEntry<Elf_Sym>(sec->sh_link, symbol_index);
- ErrorOr<StringRef> SymName =
- EF.getSymbolName(EF.getSection(sec->sh_link), symb);
- if (!SymName)
- return SymName.getError();
- switch (EF.getHeader()->e_machine) {
- case ELF::EM_X86_64:
- switch (type) {
- case ELF::R_X86_64_PC8:
- case ELF::R_X86_64_PC16:
- case ELF::R_X86_64_PC32: {
- std::string fmtbuf;
- raw_string_ostream fmt(fmtbuf);
- fmt << *SymName << (addend < 0 ? "" : "+") << addend << "-P";
- fmt.flush();
- Result.append(fmtbuf.begin(), fmtbuf.end());
- } break;
- case ELF::R_X86_64_8:
- case ELF::R_X86_64_16:
- case ELF::R_X86_64_32:
- case ELF::R_X86_64_32S:
- case ELF::R_X86_64_64: {
- std::string fmtbuf;
- raw_string_ostream fmt(fmtbuf);
- fmt << *SymName << (addend < 0 ? "" : "+") << addend;
- fmt.flush();
- Result.append(fmtbuf.begin(), fmtbuf.end());
- } break;
- default:
- res = "Unknown";
- }
- break;
- case ELF::EM_AARCH64: {
- std::string fmtbuf;
- raw_string_ostream fmt(fmtbuf);
- fmt << *SymName;
- if (addend != 0)
- fmt << (addend < 0 ? "" : "+") << addend;
- fmt.flush();
- Result.append(fmtbuf.begin(), fmtbuf.end());
- break;
- }
- case ELF::EM_386:
- case ELF::EM_ARM:
- case ELF::EM_HEXAGON:
- case ELF::EM_MIPS:
- res = *SymName;
- break;
- default:
- res = "Unknown";
}
- if (Result.empty())
- Result.append(res.begin(), res.end());
- return object_error::success;
}
template <class ELFT>
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-29 12:26:23 +0000