[Mips64] Add support for MCJIT for MIPS64r2 and MIPS64r6
Add support for resolving MIPS64r2 and MIPS64r6 relocations in MCJIT.
Patch by Vladimir Radosavljevic.
Differential Revision: http://reviews.llvm.org/D9667
llvm-svn: 238424
diff --git a/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h b/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h
index 9a4a863..3a377a2 100644
--- a/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h
+++ b/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h
@@ -25,7 +25,7 @@
void resolveRelocation(const SectionEntry &Section, uint64_t Offset,
uint64_t Value, uint32_t Type, int64_t Addend,
- uint64_t SymOffset = 0);
+ uint64_t SymOffset = 0, SID SectionID = 0);
void resolveX86_64Relocation(const SectionEntry &Section, uint64_t Offset,
uint64_t Value, uint32_t Type, int64_t Addend,
@@ -49,12 +49,24 @@
void resolveSystemZRelocation(const SectionEntry &Section, uint64_t Offset,
uint64_t Value, uint32_t Type, int64_t Addend);
+ void resolveMIPS64Relocation(const SectionEntry &Section, uint64_t Offset,
+ uint64_t Value, uint32_t Type, int64_t Addend,
+ uint64_t SymOffset, SID SectionID);
+
+ int64_t evaluateMIPS64Relocation(const SectionEntry &Section,
+ uint64_t Offset, uint64_t Value,
+ uint32_t Type, int64_t Addend,
+ uint64_t SymOffset, SID SectionID);
+
+ void applyMIPS64Relocation(uint8_t *TargetPtr, int64_t CalculatedValue,
+ uint32_t Type);
+
unsigned getMaxStubSize() override {
if (Arch == Triple::aarch64 || Arch == Triple::aarch64_be)
return 20; // movz; movk; movk; movk; br
if (Arch == Triple::arm || Arch == Triple::thumb)
return 8; // 32-bit instruction and 32-bit address
- else if (Arch == Triple::mipsel || Arch == Triple::mips)
+ else if (IsMipsO32ABI)
return 16;
else if (Arch == Triple::ppc64 || Arch == Triple::ppc64le)
return 44;
@@ -73,6 +85,8 @@
return 1;
}
+ void setMipsABI(const ObjectFile &Obj) override;
+
void findPPC64TOCSection(const ObjectFile &Obj,
ObjSectionToIDMap &LocalSections,
RelocationValueRef &Rel);
@@ -114,6 +128,13 @@
// that consume more than one slot)
unsigned CurrentGOTIndex;
+ // A map from section to a GOT section that has entries for section's GOT
+ // relocations. (Mips64 specific)
+ DenseMap<SID, SID> SectionToGOTMap;
+
+ // A map to avoid duplicate got entries (Mips64 specific)
+ StringMap<uint64_t> GOTSymbolOffsets;
+
// When a module is loaded we save the SectionID of the EH frame section
// in a table until we receive a request to register all unregistered
// EH frame sections with the memory manager.