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-rw-r--r--lib/Object/COFFObjectFile.cpp51
-rw-r--r--lib/Object/ELFObjectFile.cpp79
-rw-r--r--lib/Object/MachOObjectFile.cpp65
3 files changed, 192 insertions, 3 deletions
diff --git a/lib/Object/COFFObjectFile.cpp b/lib/Object/COFFObjectFile.cpp
index 2cf4b9c5c6..6d9e959f3f 100644
--- a/lib/Object/COFFObjectFile.cpp
+++ b/lib/Object/COFFObjectFile.cpp
@@ -114,7 +114,7 @@ error_code COFFObjectFile::getSymbolNext(DataRefImpl Symb,
return object_error::success;
}
-error_code COFFObjectFile::getSymbolAddress(DataRefImpl Symb,
+error_code COFFObjectFile::getSymbolOffset(DataRefImpl Symb,
uint64_t &Result) const {
const coff_symbol *symb = toSymb(Symb);
const coff_section *Section = NULL;
@@ -132,6 +132,55 @@ error_code COFFObjectFile::getSymbolAddress(DataRefImpl Symb,
return object_error::success;
}
+error_code COFFObjectFile::getSymbolAddress(DataRefImpl Symb,
+ uint64_t &Result) const {
+ const coff_symbol *symb = toSymb(Symb);
+ const coff_section *Section = NULL;
+ if (error_code ec = getSection(symb->SectionNumber, Section))
+ return ec;
+ char Type;
+ if (error_code ec = getSymbolNMTypeChar(Symb, Type))
+ return ec;
+ if (Type == 'U' || Type == 'w')
+ Result = UnknownAddressOrSize;
+ else if (Section)
+ Result = reinterpret_cast<uintptr_t>(base() +
+ Section->PointerToRawData +
+ symb->Value);
+ else
+ Result = reinterpret_cast<uintptr_t>(base() + symb->Value);
+ return object_error::success;
+}
+
+error_code COFFObjectFile::getSymbolType(DataRefImpl Symb,
+ SymbolRef::SymbolType &Result) const {
+ const coff_symbol *symb = toSymb(Symb);
+ Result = SymbolRef::ST_Other;
+ if (symb->StorageClass == COFF::IMAGE_SYM_CLASS_EXTERNAL &&
+ symb->SectionNumber == COFF::IMAGE_SYM_UNDEFINED) {
+ Result = SymbolRef::ST_External;
+ } else {
+ if (symb->Type.ComplexType == COFF::IMAGE_SYM_DTYPE_FUNCTION) {
+ Result = SymbolRef::ST_Function;
+ } else {
+ char Type;
+ if (error_code ec = getSymbolNMTypeChar(Symb, Type))
+ return ec;
+ if (Type == 'r' || Type == 'R') {
+ Result = SymbolRef::ST_Data;
+ }
+ }
+ }
+ return object_error::success;
+}
+
+error_code COFFObjectFile::isSymbolGlobal(DataRefImpl Symb,
+ bool &Result) const {
+ const coff_symbol *symb = toSymb(Symb);
+ Result = (symb->StorageClass == COFF::IMAGE_SYM_CLASS_EXTERNAL);
+ return object_error::success;
+}
+
error_code COFFObjectFile::getSymbolSize(DataRefImpl Symb,
uint64_t &Result) const {
// FIXME: Return the correct size. This requires looking at all the symbols
diff --git a/lib/Object/ELFObjectFile.cpp b/lib/Object/ELFObjectFile.cpp
index 15e7652774..0458c0713c 100644
--- a/lib/Object/ELFObjectFile.cpp
+++ b/lib/Object/ELFObjectFile.cpp
@@ -310,10 +310,13 @@ class ELFObjectFile : public ObjectFile {
protected:
virtual error_code getSymbolNext(DataRefImpl Symb, SymbolRef &Res) const;
virtual error_code getSymbolName(DataRefImpl Symb, StringRef &Res) const;
+ virtual error_code getSymbolOffset(DataRefImpl Symb, uint64_t &Res) const;
virtual error_code getSymbolAddress(DataRefImpl Symb, uint64_t &Res) const;
virtual error_code getSymbolSize(DataRefImpl Symb, uint64_t &Res) const;
virtual error_code getSymbolNMTypeChar(DataRefImpl Symb, char &Res) const;
virtual error_code isSymbolInternal(DataRefImpl Symb, bool &Res) const;
+ virtual error_code isSymbolGlobal(DataRefImpl Symb, bool &Res) const;
+ virtual error_code getSymbolType(DataRefImpl Symb, SymbolRef::SymbolType &Res) const;
virtual error_code getSectionNext(DataRefImpl Sec, SectionRef &Res) const;
virtual error_code getSectionName(DataRefImpl Sec, StringRef &Res) const;
@@ -415,7 +418,7 @@ error_code ELFObjectFile<target_endianness, is64Bits>
template<support::endianness target_endianness, bool is64Bits>
error_code ELFObjectFile<target_endianness, is64Bits>
- ::getSymbolAddress(DataRefImpl Symb,
+ ::getSymbolOffset(DataRefImpl Symb,
uint64_t &Result) const {
validateSymbol(Symb);
const Elf_Sym *symb = getSymbol(Symb);
@@ -449,6 +452,43 @@ error_code ELFObjectFile<target_endianness, is64Bits>
template<support::endianness target_endianness, bool is64Bits>
error_code ELFObjectFile<target_endianness, is64Bits>
+ ::getSymbolAddress(DataRefImpl Symb,
+ uint64_t &Result) const {
+ validateSymbol(Symb);
+ const Elf_Sym *symb = getSymbol(Symb);
+ const Elf_Shdr *Section;
+ switch (symb->st_shndx) {
+ case ELF::SHN_COMMON: // Fall through.
+ // Undefined symbols have no address yet.
+ case ELF::SHN_UNDEF:
+ Result = UnknownAddressOrSize;
+ return object_error::success;
+ case ELF::SHN_ABS:
+ Result = reinterpret_cast<uintptr_t>(base()+symb->st_value);
+ return object_error::success;
+ default: Section = getSection(symb->st_shndx);
+ }
+ const uint8_t* addr = base();
+ if (Section)
+ addr += Section->sh_offset;
+ switch (symb->getType()) {
+ case ELF::STT_SECTION:
+ Result = reinterpret_cast<uintptr_t>(addr);
+ return object_error::success;
+ case ELF::STT_FUNC: // Fall through.
+ case ELF::STT_OBJECT: // Fall through.
+ case ELF::STT_NOTYPE:
+ addr += symb->st_value;
+ Result = reinterpret_cast<uintptr_t>(addr);
+ return object_error::success;
+ default:
+ Result = UnknownAddressOrSize;
+ return object_error::success;
+ }
+}
+
+template<support::endianness target_endianness, bool is64Bits>
+error_code ELFObjectFile<target_endianness, is64Bits>
::getSymbolSize(DataRefImpl Symb,
uint64_t &Result) const {
validateSymbol(Symb);
@@ -526,6 +566,43 @@ error_code ELFObjectFile<target_endianness, is64Bits>
template<support::endianness target_endianness, bool is64Bits>
error_code ELFObjectFile<target_endianness, is64Bits>
+ ::getSymbolType(DataRefImpl Symb,
+ SymbolRef::SymbolType &Result) const {
+ validateSymbol(Symb);
+ const Elf_Sym *symb = getSymbol(Symb);
+
+ if (symb->st_shndx == ELF::SHN_UNDEF) {
+ Result = SymbolRef::ST_External;
+ return object_error::success;
+ }
+
+ switch (symb->getType()) {
+ case ELF::STT_FUNC:
+ Result = SymbolRef::ST_Function;
+ break;
+ case ELF::STT_OBJECT:
+ Result = SymbolRef::ST_Data;
+ break;
+ default:
+ Result = SymbolRef::ST_Other;
+ break;
+ }
+ return object_error::success;
+}
+
+template<support::endianness target_endianness, bool is64Bits>
+error_code ELFObjectFile<target_endianness, is64Bits>
+ ::isSymbolGlobal(DataRefImpl Symb,
+ bool &Result) const {
+ validateSymbol(Symb);
+ const Elf_Sym *symb = getSymbol(Symb);
+
+ Result = symb->getBinding() == ELF::STB_GLOBAL;
+ return object_error::success;
+}
+
+template<support::endianness target_endianness, bool is64Bits>
+error_code ELFObjectFile<target_endianness, is64Bits>
::isSymbolInternal(DataRefImpl Symb,
bool &Result) const {
validateSymbol(Symb);
diff --git a/lib/Object/MachOObjectFile.cpp b/lib/Object/MachOObjectFile.cpp
index 6ad6bc18f1..615e4e2162 100644
--- a/lib/Object/MachOObjectFile.cpp
+++ b/lib/Object/MachOObjectFile.cpp
@@ -49,10 +49,13 @@ public:
protected:
virtual error_code getSymbolNext(DataRefImpl Symb, SymbolRef &Res) const;
virtual error_code getSymbolName(DataRefImpl Symb, StringRef &Res) const;
+ virtual error_code getSymbolOffset(DataRefImpl Symb, uint64_t &Res) const;
virtual error_code getSymbolAddress(DataRefImpl Symb, uint64_t &Res) const;
virtual error_code getSymbolSize(DataRefImpl Symb, uint64_t &Res) const;
virtual error_code getSymbolNMTypeChar(DataRefImpl Symb, char &Res) const;
virtual error_code isSymbolInternal(DataRefImpl Symb, bool &Res) const;
+ virtual error_code isSymbolGlobal(DataRefImpl Symb, bool &Res) const;
+ virtual error_code getSymbolType(DataRefImpl Symb, SymbolRef::SymbolType &Res) const;
virtual error_code getSectionNext(DataRefImpl Sec, SectionRef &Res) const;
virtual error_code getSectionName(DataRefImpl Sec, StringRef &Res) const;
@@ -190,7 +193,7 @@ error_code MachOObjectFile::getSymbolName(DataRefImpl DRI,
return object_error::success;
}
-error_code MachOObjectFile::getSymbolAddress(DataRefImpl DRI,
+error_code MachOObjectFile::getSymbolOffset(DataRefImpl DRI,
uint64_t &Result) const {
if (MachOObj->is64Bit()) {
InMemoryStruct<macho::Symbol64TableEntry> Entry;
@@ -204,6 +207,27 @@ error_code MachOObjectFile::getSymbolAddress(DataRefImpl DRI,
return object_error::success;
}
+error_code MachOObjectFile::getSymbolAddress(DataRefImpl DRI,
+ uint64_t &Result) const {
+ uint64_t SymbolOffset;
+ uint8_t SectionIndex;
+ if (MachOObj->is64Bit()) {
+ InMemoryStruct<macho::Symbol64TableEntry> Entry;
+ getSymbol64TableEntry(DRI, Entry);
+ SymbolOffset = Entry->Value;
+ SectionIndex = Entry->SectionIndex;
+ } else {
+ InMemoryStruct<macho::SymbolTableEntry> Entry;
+ getSymbolTableEntry(DRI, Entry);
+ SymbolOffset = Entry->Value;
+ SectionIndex = Entry->SectionIndex;
+ }
+ getSectionAddress(Sections[SectionIndex], Result);
+ Result += SymbolOffset;
+
+ return object_error::success;
+}
+
error_code MachOObjectFile::getSymbolSize(DataRefImpl DRI,
uint64_t &Result) const {
Result = UnknownAddressOrSize;
@@ -259,6 +283,45 @@ error_code MachOObjectFile::isSymbolInternal(DataRefImpl DRI,
return object_error::success;
}
+error_code MachOObjectFile::isSymbolGlobal(DataRefImpl Symb, bool &Res) const {
+
+ if (MachOObj->is64Bit()) {
+ InMemoryStruct<macho::Symbol64TableEntry> Entry;
+ getSymbol64TableEntry(Symb, Entry);
+ Res = Entry->Type & MachO::NlistMaskExternal;
+ } else {
+ InMemoryStruct<macho::SymbolTableEntry> Entry;
+ getSymbolTableEntry(Symb, Entry);
+ Res = Entry->Type & MachO::NlistMaskExternal;
+ }
+ return object_error::success;
+}
+
+error_code MachOObjectFile::getSymbolType(DataRefImpl Symb,
+ SymbolRef::SymbolType &Res) const {
+ uint8_t n_type;
+ if (MachOObj->is64Bit()) {
+ InMemoryStruct<macho::Symbol64TableEntry> Entry;
+ getSymbol64TableEntry(Symb, Entry);
+ n_type = Entry->Type;
+ } else {
+ InMemoryStruct<macho::SymbolTableEntry> Entry;
+ getSymbolTableEntry(Symb, Entry);
+ n_type = Entry->Type;
+ }
+ Res = SymbolRef::ST_Other;
+ switch (n_type & MachO::NlistMaskType) {
+ case MachO::NListTypeUndefined :
+ Res = SymbolRef::ST_External;
+ break;
+ case MachO::NListTypeSection :
+ Res = SymbolRef::ST_Function;
+ break;
+ }
+ return object_error::success;
+}
+
+
ObjectFile::symbol_iterator MachOObjectFile::begin_symbols() const {
// DRI.d.a = segment number; DRI.d.b = symbol index.
DataRefImpl DRI;
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-05 05:14:19 +0000