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Fixed ObjectFile functions:

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- getSymbolOffset() renamed as getSymbolFileOffset()
- getSymbolFileOffset(), getSymbolAddress(), getRelocationAddress() returns same result for ELFObjectFile, MachOObjectFile and COFFObjectFile.
- added getRelocationOffset()
- fixed MachOObjectFile::getSymbolSize()
- fixed MachOObjectFile::getSymbolSection()
- fixed MachOObjectFile::getSymbolOffset() for symbols without section data.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145180 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Danil Malyshev
2011-11-27 10:12:52 +00:00
parent 2eb5a744b1
commit 9b24738bd1
11 changed files with 150 additions and 44 deletions
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49
lib/Object/ELFObjectFile.cpp
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@ -325,7 +325,7 @@ 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 getSymbolFileOffset(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;
@ -355,6 +355,8 @@ protected:
RelocationRef &Res) const;
virtual error_code getRelocationAddress(DataRefImpl Rel,
uint64_t &Res) const;
virtual error_code getRelocationOffset(DataRefImpl Rel,
uint64_t &Res) const;
virtual error_code getRelocationSymbol(DataRefImpl Rel,
SymbolRef &Res) const;
virtual error_code getRelocationType(DataRefImpl Rel,
@ -462,7 +464,7 @@ ELFObjectFile<target_endianness, is64Bits>
template<support::endianness target_endianness, bool is64Bits>
error_code ELFObjectFile<target_endianness, is64Bits>
::getSymbolOffset(DataRefImpl Symb,
::getSymbolFileOffset(DataRefImpl Symb,
uint64_t &Result) const {
validateSymbol(Symb);
const Elf_Sym *symb = getSymbol(Symb);
@ -486,7 +488,8 @@ error_code ELFObjectFile<target_endianness, is64Bits>
case ELF::STT_FUNC:
case ELF::STT_OBJECT:
case ELF::STT_NOTYPE:
Result = symb->st_value;
Result = symb->st_value +
(Section ? Section->sh_offset - Section->sh_addr : 0);
return object_error::success;
default:
Result = UnknownAddressOrSize;
@ -502,28 +505,25 @@ error_code ELFObjectFile<target_endianness, is64Bits>
const Elf_Sym *symb = getSymbol(Symb);
const Elf_Shdr *Section;
switch (getSymbolTableIndex(symb)) {
case ELF::SHN_COMMON: // Fall through.
case ELF::SHN_COMMON:
// 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);
Result = symb->st_value;
return object_error::success;
default: Section = getSection(symb);
}
const uint8_t* addr = base();
if (Section)
addr += Section->sh_offset;
switch (symb->getType()) {
case ELF::STT_SECTION:
Result = reinterpret_cast<uintptr_t>(addr);
Result = Section ? Section->sh_addr : UnknownAddressOrSize;
return object_error::success;
case ELF::STT_FUNC: // Fall through.
case ELF::STT_OBJECT: // Fall through.
case ELF::STT_FUNC:
case ELF::STT_OBJECT:
case ELF::STT_NOTYPE:
addr += symb->st_value;
Result = reinterpret_cast<uintptr_t>(addr);
Result = symb->st_value;
return object_error::success;
default:
Result = UnknownAddressOrSize;
@ -920,6 +920,29 @@ error_code ELFObjectFile<target_endianness, is64Bits>
return object_error::success;
}
template<support::endianness target_endianness, bool is64Bits>
error_code ELFObjectFile<target_endianness, is64Bits>
::getRelocationOffset(DataRefImpl Rel,
uint64_t &Result) const {
uint64_t offset;
const Elf_Shdr *sec = getSection(Rel.w.b);
switch (sec->sh_type) {
default :
report_fatal_error("Invalid section type in Rel!");
case ELF::SHT_REL : {
offset = getRel(Rel)->r_offset;
break;
}
case ELF::SHT_RELA : {
offset = getRela(Rel)->r_offset;
break;
}
}
Result = offset - sec->sh_addr;
return object_error::success;
}
template<support::endianness target_endianness, bool is64Bits>
error_code ELFObjectFile<target_endianness, is64Bits>
::getRelocationType(DataRefImpl Rel,