Replace ObjRelocationInfo with relocation_iterator.
For MachO we need information that is not represented in ObjRelocationInfo.
Instead of copying the bits we think are needed from a relocation_iterator,
just pass the relocation_iterator down to the format specific functions.
No functionality change yet as we still drop the information once
processRelocationRef returns.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180711 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp b/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp
index 7e94072..bb5f84e 100644
--- a/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp
+++ b/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp
@@ -593,15 +593,18 @@
}
}
-void RuntimeDyldELF::processRelocationRef(const ObjRelocationInfo &Rel,
+void RuntimeDyldELF::processRelocationRef(unsigned SectionID,
+ relocation_iterator RelI,
ObjectImage &Obj,
ObjSectionToIDMap &ObjSectionToID,
const SymbolTableMap &Symbols,
StubMap &Stubs) {
-
- uint32_t RelType = (uint32_t)(Rel.Type & 0xffffffffL);
- intptr_t Addend = (intptr_t)Rel.AdditionalInfo;
- const SymbolRef &Symbol = Rel.Symbol;
+ uint64_t RelType;
+ Check(RelI->getType(RelType));
+ int64_t Addend;
+ Check(RelI->getAdditionalInfo(Addend));
+ SymbolRef Symbol;
+ Check(RelI->getSymbol(Symbol));
// Obtain the symbol name which is referenced in the relocation
StringRef TargetName;
@@ -657,8 +660,11 @@
}
}
}
- DEBUG(dbgs() << "\t\tRel.SectionID: " << Rel.SectionID
- << " Rel.Offset: " << Rel.Offset
+ uint64_t Offset;
+ Check(RelI->getOffset(Offset));
+
+ DEBUG(dbgs() << "\t\tSectionID: " << SectionID
+ << " Offset: " << Offset
<< "\n");
if (Arch == Triple::arm &&
(RelType == ELF::R_ARM_PC24 ||
@@ -666,12 +672,12 @@
RelType == ELF::R_ARM_JUMP24)) {
// This is an ARM branch relocation, need to use a stub function.
DEBUG(dbgs() << "\t\tThis is an ARM branch relocation.");
- SectionEntry &Section = Sections[Rel.SectionID];
+ SectionEntry &Section = Sections[SectionID];
// Look for an existing stub.
StubMap::const_iterator i = Stubs.find(Value);
if (i != Stubs.end()) {
- resolveRelocation(Section, Rel.Offset,
+ resolveRelocation(Section, Offset,
(uint64_t)Section.Address + i->second, RelType, 0);
DEBUG(dbgs() << " Stub function found\n");
} else {
@@ -680,14 +686,14 @@
Stubs[Value] = Section.StubOffset;
uint8_t *StubTargetAddr = createStubFunction(Section.Address +
Section.StubOffset);
- RelocationEntry RE(Rel.SectionID, StubTargetAddr - Section.Address,
+ RelocationEntry RE(SectionID, StubTargetAddr - Section.Address,
ELF::R_ARM_ABS32, Value.Addend);
if (Value.SymbolName)
addRelocationForSymbol(RE, Value.SymbolName);
else
addRelocationForSection(RE, Value.SectionID);
- resolveRelocation(Section, Rel.Offset,
+ resolveRelocation(Section, Offset,
(uint64_t)Section.Address + Section.StubOffset,
RelType, 0);
Section.StubOffset += getMaxStubSize();
@@ -696,8 +702,8 @@
RelType == ELF::R_MIPS_26) {
// This is an Mips branch relocation, need to use a stub function.
DEBUG(dbgs() << "\t\tThis is a Mips branch relocation.");
- SectionEntry &Section = Sections[Rel.SectionID];
- uint8_t *Target = Section.Address + Rel.Offset;
+ SectionEntry &Section = Sections[SectionID];
+ uint8_t *Target = Section.Address + Offset;
uint32_t *TargetAddress = (uint32_t *)Target;
// Extract the addend from the instruction.
@@ -708,7 +714,7 @@
// Look up for existing stub.
StubMap::const_iterator i = Stubs.find(Value);
if (i != Stubs.end()) {
- resolveRelocation(Section, Rel.Offset,
+ resolveRelocation(Section, Offset,
(uint64_t)Section.Address + i->second, RelType, 0);
DEBUG(dbgs() << " Stub function found\n");
} else {
@@ -719,10 +725,10 @@
Section.StubOffset);
// Creating Hi and Lo relocations for the filled stub instructions.
- RelocationEntry REHi(Rel.SectionID,
+ RelocationEntry REHi(SectionID,
StubTargetAddr - Section.Address,
ELF::R_MIPS_HI16, Value.Addend);
- RelocationEntry RELo(Rel.SectionID,
+ RelocationEntry RELo(SectionID,
StubTargetAddr - Section.Address + 4,
ELF::R_MIPS_LO16, Value.Addend);
@@ -734,7 +740,7 @@
addRelocationForSection(RELo, Value.SectionID);
}
- resolveRelocation(Section, Rel.Offset,
+ resolveRelocation(Section, Offset,
(uint64_t)Section.Address + Section.StubOffset,
RelType, 0);
Section.StubOffset += getMaxStubSize();
@@ -744,8 +750,8 @@
// A PPC branch relocation will need a stub function if the target is
// an external symbol (Symbol::ST_Unknown) or if the target address
// is not within the signed 24-bits branch address.
- SectionEntry &Section = Sections[Rel.SectionID];
- uint8_t *Target = Section.Address + Rel.Offset;
+ SectionEntry &Section = Sections[SectionID];
+ uint8_t *Target = Section.Address + Offset;
bool RangeOverflow = false;
if (SymType != SymbolRef::ST_Unknown) {
// A function call may points to the .opd entry, so the final symbol value
@@ -755,7 +761,7 @@
int32_t delta = static_cast<int32_t>(Target - RelocTarget);
// If it is within 24-bits branch range, just set the branch target
if (SignExtend32<24>(delta) == delta) {
- RelocationEntry RE(Rel.SectionID, Rel.Offset, RelType, Value.Addend);
+ RelocationEntry RE(SectionID, Offset, RelType, Value.Addend);
if (Value.SymbolName)
addRelocationForSymbol(RE, Value.SymbolName);
else
@@ -770,7 +776,7 @@
StubMap::const_iterator i = Stubs.find(Value);
if (i != Stubs.end()) {
// Symbol function stub already created, just relocate to it
- resolveRelocation(Section, Rel.Offset,
+ resolveRelocation(Section, Offset,
(uint64_t)Section.Address + i->second, RelType, 0);
DEBUG(dbgs() << " Stub function found\n");
} else {
@@ -779,21 +785,21 @@
Stubs[Value] = Section.StubOffset;
uint8_t *StubTargetAddr = createStubFunction(Section.Address +
Section.StubOffset);
- RelocationEntry RE(Rel.SectionID, StubTargetAddr - Section.Address,
+ RelocationEntry RE(SectionID, StubTargetAddr - Section.Address,
ELF::R_PPC64_ADDR64, Value.Addend);
// Generates the 64-bits address loads as exemplified in section
// 4.5.1 in PPC64 ELF ABI.
- RelocationEntry REhst(Rel.SectionID,
+ RelocationEntry REhst(SectionID,
StubTargetAddr - Section.Address + 2,
ELF::R_PPC64_ADDR16_HIGHEST, Value.Addend);
- RelocationEntry REhr(Rel.SectionID,
+ RelocationEntry REhr(SectionID,
StubTargetAddr - Section.Address + 6,
ELF::R_PPC64_ADDR16_HIGHER, Value.Addend);
- RelocationEntry REh(Rel.SectionID,
+ RelocationEntry REh(SectionID,
StubTargetAddr - Section.Address + 14,
ELF::R_PPC64_ADDR16_HI, Value.Addend);
- RelocationEntry REl(Rel.SectionID,
+ RelocationEntry REl(SectionID,
StubTargetAddr - Section.Address + 18,
ELF::R_PPC64_ADDR16_LO, Value.Addend);
@@ -809,7 +815,7 @@
addRelocationForSection(REl, Value.SectionID);
}
- resolveRelocation(Section, Rel.Offset,
+ resolveRelocation(Section, Offset,
(uint64_t)Section.Address + Section.StubOffset,
RelType, 0);
if (SymType == SymbolRef::ST_Unknown)
@@ -819,7 +825,7 @@
}
}
} else {
- RelocationEntry RE(Rel.SectionID, Rel.Offset, RelType, Value.Addend);
+ RelocationEntry RE(SectionID, Offset, RelType, Value.Addend);
// Extra check to avoid relocation againt empty symbols (usually
// the R_PPC64_TOC).
if (Value.SymbolName && !TargetName.empty())
@@ -828,7 +834,7 @@
addRelocationForSection(RE, Value.SectionID);
}
} else {
- RelocationEntry RE(Rel.SectionID, Rel.Offset, RelType, Value.Addend);
+ RelocationEntry RE(SectionID, Offset, RelType, Value.Addend);
if (Value.SymbolName)
addRelocationForSymbol(RE, Value.SymbolName);
else