[RuntimeDyld] Add support for MachO __jump_table and __pointers sections, and
SECTDIFF relocations on 32-bit x86.
This fixes several of the MCJIT regression test failures that show up on 32-bit
builds.
<rdar://problem/16886294>
llvm-svn: 208635
diff --git a/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.h b/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.h
index 0c799bd..138c59b 100644
--- a/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.h
+++ b/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.h
@@ -46,6 +46,14 @@
bool resolveARMRelocation(const RelocationEntry &RE, uint64_t Value);
bool resolveARM64Relocation(const RelocationEntry &RE, uint64_t Value);
+ // Populate stubs in __jump_table section.
+ void populateJumpTable(MachOObjectFile &Obj, const SectionRef &JTSection,
+ unsigned JTSectionID);
+
+ // Populate __pointers section.
+ void populatePointersSection(MachOObjectFile &Obj, const SectionRef &PTSection,
+ unsigned PTSectionID);
+
unsigned getMaxStubSize() override {
if (Arch == Triple::arm || Arch == Triple::thumb)
return 8; // 32-bit instruction and 32-bit address
@@ -57,6 +65,12 @@
unsigned getStubAlignment() override { return 1; }
+ relocation_iterator processSECTDIFFRelocation(
+ unsigned SectionID,
+ relocation_iterator RelI,
+ ObjectImage &ObjImg,
+ ObjSectionToIDMap &ObjSectionToID);
+
struct EHFrameRelatedSections {
EHFrameRelatedSections()
: EHFrameSID(RTDYLD_INVALID_SECTION_ID),
@@ -85,7 +99,8 @@
bool isCompatibleFormat(const ObjectBuffer *Buffer) const override;
bool isCompatibleFile(const object::ObjectFile *Obj) const override;
void registerEHFrames() override;
- void finalizeLoad(ObjSectionToIDMap &SectionMap) override;
+ void finalizeLoad(ObjectImage &ObjImg,
+ ObjSectionToIDMap &SectionMap) override;
static ObjectImage *createObjectImage(ObjectBuffer *InputBuffer) {
return new ObjectImageCommon(InputBuffer);