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Don't use InMemoryStruct in getRelocation.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178943 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola 2013-04-06 01:24:11 +00:00
parent 5044a9395a
commit 5cf0f51ae6
2 changed files with 28 additions and 34 deletions
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10
include/llvm/Object/MachO.h
View File

@ -55,6 +55,11 @@ namespace MachOFormat {
support::ulittle32_t Reserved2;
support::ulittle32_t Reserved3;
};
struct RelocationEntry {
support::ulittle32_t Word0;
support::ulittle32_t Word1;
};
}
typedef MachOObject::LoadCommandInfo LoadCommandInfo;
@ -161,11 +166,10 @@ private:
void moveToNextSymbol(DataRefImpl &DRI) const;
const MachOFormat::Section *getSection(DataRefImpl DRI) const;
const MachOFormat::Section64 *getSection64(DataRefImpl DRI) const;
void getRelocation(DataRefImpl Rel,
InMemoryStruct<macho::RelocationEntry> &Res) const;
const MachOFormat::RelocationEntry *getRelocation(DataRefImpl Rel) const;
std::size_t getSectionIndex(DataRefImpl Sec) const;
void printRelocationTargetName(InMemoryStruct<macho::RelocationEntry>& RE,
void printRelocationTargetName(const MachOFormat::RelocationEntry *RE,
raw_string_ostream &fmt) const;
};

52
lib/Object/MachOObjectFile.cpp
View File

@ -699,9 +699,8 @@ section_iterator MachOObjectFile::end_sections() const {
/*===-- Relocations -------------------------------------------------------===*/
void MachOObjectFile::
getRelocation(DataRefImpl Rel,
InMemoryStruct<macho::RelocationEntry> &Res) const {
const MachOFormat::RelocationEntry *
MachOObjectFile::getRelocation(DataRefImpl Rel) const {
uint32_t relOffset;
if (MachOObj->is64Bit()) {
const MachOFormat::Section64 *Sect = getSection64(Sections[Rel.d.b]);
@ -710,8 +709,12 @@ getRelocation(DataRefImpl Rel,
const MachOFormat::Section *Sect = getSection(Sections[Rel.d.b]);
relOffset = Sect->RelocationTableOffset;
}
MachOObj->ReadRelocationEntry(relOffset, Rel.d.a, Res);
uint64_t Offset = relOffset + Rel.d.a * sizeof(MachOFormat::RelocationEntry);
StringRef Data =
MachOObj->getData(Offset, sizeof(MachOFormat::RelocationEntry));
return reinterpret_cast<const MachOFormat::RelocationEntry*>(Data.data());
}
error_code MachOObjectFile::getRelocationNext(DataRefImpl Rel,
RelocationRef &Res) const {
++Rel.d.a;
@ -728,8 +731,7 @@ error_code MachOObjectFile::getRelocationAddress(DataRefImpl Rel,
const MachOFormat::Section *Sect = getSection(Sections[Rel.d.b]);
sectAddress += Sect->Address;
}
InMemoryStruct<macho::RelocationEntry> RE;
getRelocation(Rel, RE);
const MachOFormat::RelocationEntry *RE = getRelocation(Rel);
unsigned Arch = getArch();
bool isScattered = (Arch != Triple::x86_64) &&
@ -745,8 +747,7 @@ error_code MachOObjectFile::getRelocationAddress(DataRefImpl Rel,
}
error_code MachOObjectFile::getRelocationOffset(DataRefImpl Rel,
uint64_t &Res) const {
InMemoryStruct<macho::RelocationEntry> RE;
getRelocation(Rel, RE);
const MachOFormat::RelocationEntry *RE = getRelocation(Rel);
unsigned Arch = getArch();
bool isScattered = (Arch != Triple::x86_64) &&
@ -759,8 +760,7 @@ error_code MachOObjectFile::getRelocationOffset(DataRefImpl Rel,
}
error_code MachOObjectFile::getRelocationSymbol(DataRefImpl Rel,
SymbolRef &Res) const {
InMemoryStruct<macho::RelocationEntry> RE;
getRelocation(Rel, RE);
const MachOFormat::RelocationEntry *RE = getRelocation(Rel);
uint32_t SymbolIdx = RE->Word1 & 0xffffff;
bool isExtern = (RE->Word1 >> 27) & 1;
@ -779,8 +779,7 @@ error_code MachOObjectFile::getRelocationSymbol(DataRefImpl Rel,
}
error_code MachOObjectFile::getRelocationType(DataRefImpl Rel,
uint64_t &Res) const {
InMemoryStruct<macho::RelocationEntry> RE;
getRelocation(Rel, RE);
const MachOFormat::RelocationEntry *RE = getRelocation(Rel);
Res = RE->Word0;
Res <<= 32;
Res |= RE->Word1;
@ -790,8 +789,7 @@ error_code MachOObjectFile::getRelocationTypeName(DataRefImpl Rel,
SmallVectorImpl<char> &Result) const {
// TODO: Support scattered relocations.
StringRef res;
InMemoryStruct<macho::RelocationEntry> RE;
getRelocation(Rel, RE);
const MachOFormat::RelocationEntry *RE = getRelocation(Rel);
unsigned Arch = getArch();
bool isScattered = (Arch != Triple::x86_64) &&
@ -888,8 +886,7 @@ error_code MachOObjectFile::getRelocationTypeName(DataRefImpl Rel,
}
error_code MachOObjectFile::getRelocationAdditionalInfo(DataRefImpl Rel,
int64_t &Res) const {
InMemoryStruct<macho::RelocationEntry> RE;
getRelocation(Rel, RE);
const MachOFormat::RelocationEntry *RE = getRelocation(Rel);
bool isExtern = (RE->Word1 >> 27) & 1;
Res = 0;
if (!isExtern) {
@ -923,7 +920,7 @@ void advanceTo(T &it, size_t Val) {
}
void MachOObjectFile::printRelocationTargetName(
InMemoryStruct<macho::RelocationEntry>& RE,
const MachOFormat::RelocationEntry *RE,
raw_string_ostream &fmt) const {
unsigned Arch = getArch();
bool isScattered = (Arch != Triple::x86_64) &&
@ -994,8 +991,7 @@ void MachOObjectFile::printRelocationTargetName(
error_code MachOObjectFile::getRelocationValueString(DataRefImpl Rel,
SmallVectorImpl<char> &Result) const {
InMemoryStruct<macho::RelocationEntry> RE;
getRelocation(Rel, RE);
const MachOFormat::RelocationEntry *RE = getRelocation(Rel);
unsigned Arch = getArch();
bool isScattered = (Arch != Triple::x86_64) &&
@ -1032,10 +1028,9 @@ error_code MachOObjectFile::getRelocationValueString(DataRefImpl Rel,
break;
}
case macho::RIT_X86_64_Subtractor: { // X86_64_RELOC_SUBTRACTOR
InMemoryStruct<macho::RelocationEntry> RENext;
DataRefImpl RelNext = Rel;
RelNext.d.a++;
getRelocation(RelNext, RENext);
const MachOFormat::RelocationEntry *RENext = getRelocation(RelNext);
// X86_64_SUBTRACTOR must be followed by a relocation of type
// X86_64_RELOC_UNSIGNED.
@ -1080,10 +1075,9 @@ error_code MachOObjectFile::getRelocationValueString(DataRefImpl Rel,
case macho::RIT_Pair: // GENERIC_RELOC_PAIR - prints no info
return object_error::success;
case macho::RIT_Difference: { // GENERIC_RELOC_SECTDIFF
InMemoryStruct<macho::RelocationEntry> RENext;
DataRefImpl RelNext = Rel;
RelNext.d.a++;
getRelocation(RelNext, RENext);
const MachOFormat::RelocationEntry *RENext = getRelocation(RelNext);
// X86 sect diff's must be followed by a relocation of type
// GENERIC_RELOC_PAIR.
@ -1110,10 +1104,9 @@ error_code MachOObjectFile::getRelocationValueString(DataRefImpl Rel,
// handled in the generic code.
switch (Type) {
case macho::RIT_Generic_LocalDifference:{// GENERIC_RELOC_LOCAL_SECTDIFF
InMemoryStruct<macho::RelocationEntry> RENext;
DataRefImpl RelNext = Rel;
RelNext.d.a++;
getRelocation(RelNext, RENext);
const MachOFormat::RelocationEntry *RENext = getRelocation(RelNext);
// X86 sect diff's must be followed by a relocation of type
// GENERIC_RELOC_PAIR.
@ -1160,10 +1153,9 @@ error_code MachOObjectFile::getRelocationValueString(DataRefImpl Rel,
fmt << ":lower16:(";
printRelocationTargetName(RE, fmt);
InMemoryStruct<macho::RelocationEntry> RENext;
DataRefImpl RelNext = Rel;
RelNext.d.a++;
getRelocation(RelNext, RENext);
const MachOFormat::RelocationEntry *RENext = getRelocation(RelNext);
// ARM half relocs must be followed by a relocation of type
// ARM_RELOC_PAIR.
@ -1209,8 +1201,7 @@ error_code MachOObjectFile::getRelocationValueString(DataRefImpl Rel,
error_code MachOObjectFile::getRelocationHidden(DataRefImpl Rel,
bool &Result) const {
InMemoryStruct<macho::RelocationEntry> RE;
getRelocation(Rel, RE);
const MachOFormat::RelocationEntry *RE = getRelocation(Rel);
unsigned Arch = getArch();
bool isScattered = (Arch != Triple::x86_64) &&
@ -1233,8 +1224,7 @@ error_code MachOObjectFile::getRelocationHidden(DataRefImpl Rel,
if (Type == macho::RIT_X86_64_Unsigned && Rel.d.a > 0) {
DataRefImpl RelPrev = Rel;
RelPrev.d.a--;
InMemoryStruct<macho::RelocationEntry> REPrev;
getRelocation(RelPrev, REPrev);
const MachOFormat::RelocationEntry *REPrev = getRelocation(RelPrev);
unsigned PrevType = (REPrev->Word1 >> 28) & 0xF;