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[MCJIT] Make sure eh-frame fixups use the target's pointer type, not the host's.

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If the wrong pointer type is used it can cause corruption of the frame
description entries.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217124 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Lang Hames
2014-09-04 04:53:03 +00:00
parent 7125897c92
commit 21797d6cd6
7 changed files with 93 additions and 39 deletions
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28
lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.h
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@@ -122,7 +122,6 @@ public:
bool isCompatibleFormat(const ObjectBuffer *Buffer) const override;
bool isCompatibleFile(const object::ObjectFile *Obj) const override;
void registerEHFrames() override;
};
/// RuntimeDyldMachOTarget - Templated base class for generic MachO linker
@@ -138,32 +137,15 @@ private:
Impl &impl() { return static_cast<Impl &>(*this); }
const Impl &impl() const { return static_cast<const Impl &>(*this); }
unsigned char *processFDE(unsigned char *P, int64_t DeltaForText,
int64_t DeltaForEH);
public:
RuntimeDyldMachOCRTPBase(RTDyldMemoryManager *mm) : RuntimeDyldMachO(mm) {}
void finalizeLoad(ObjectImage &ObjImg,
ObjSectionToIDMap &SectionMap) override {
unsigned EHFrameSID = RTDYLD_INVALID_SECTION_ID;
unsigned TextSID = RTDYLD_INVALID_SECTION_ID;
unsigned ExceptTabSID = RTDYLD_INVALID_SECTION_ID;
ObjSectionToIDMap::iterator i, e;
for (i = SectionMap.begin(), e = SectionMap.end(); i != e; ++i) {
const SectionRef &Section = i->first;
StringRef Name;
Section.getName(Name);
if (Name == "__eh_frame")
EHFrameSID = i->second;
else if (Name == "__text")
TextSID = i->second;
else if (Name == "__gcc_except_tab")
ExceptTabSID = i->second;
else
impl().finalizeSection(ObjImg, i->second, Section);
}
UnregisteredEHFrameSections.push_back(
EHFrameRelatedSections(EHFrameSID, TextSID, ExceptTabSID));
}
ObjSectionToIDMap &SectionMap) override;
void registerEHFrames() override;
};
} // end namespace llvm