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Separating ELF and MachO stub info functions for RuntimeDyld

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192737 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Andrew Kaylor 2013-10-15 21:32:56 +00:00
parent 977ce007ad
commit 72be32c633
3 changed files with 39 additions and 23 deletions
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24
lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h
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@ -82,6 +82,30 @@ class RuntimeDyldELF : public RuntimeDyldImpl {
uint32_t Type,
int64_t Addend);
unsigned getMaxStubSize() {
if (Arch == Triple::aarch64)
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)
return 16;
else if (Arch == Triple::ppc64 || Arch == Triple::ppc64le)
return 44;
else if (Arch == Triple::x86_64)
return 6; // 2-byte jmp instruction + 32-bit relative address
else if (Arch == Triple::systemz)
return 16;
else
return 0;
}
unsigned getStubAlignment() {
if (Arch == Triple::systemz)
return 8;
else
return 1;
}
uint64_t findPPC64TOC() const;
void findOPDEntrySection(ObjectImage &Obj,
ObjSectionToIDMap &LocalSections,

25
lib/ExecutionEngine/RuntimeDyld/RuntimeDyldImpl.h
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@ -186,29 +186,8 @@ protected:
Triple::ArchType Arch;
bool IsTargetLittleEndian;
inline unsigned getMaxStubSize() {
if (Arch == Triple::aarch64)
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)
return 16;
else if (Arch == Triple::ppc64 || Arch == Triple::ppc64le)
return 44;
else if (Arch == Triple::x86_64)
return 6; // 2-byte jmp instruction + 32-bit relative address
else if (Arch == Triple::systemz)
return 16;
else
return 0;
}
inline unsigned getStubAlignment() {
if (Arch == Triple::systemz)
return 8;
else
return 1;
}
virtual unsigned getMaxStubSize() = 0;
virtual unsigned getStubAlignment() = 0;
bool HasError;
std::string ErrorStr;

13
lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.h
View File

@ -55,6 +55,19 @@ class RuntimeDyldMachO : public RuntimeDyldImpl {
bool isPCRel,
unsigned Size);
unsigned getMaxStubSize() {
if (Arch == Triple::arm || Arch == Triple::thumb)
return 8; // 32-bit instruction and 32-bit address
else if (Arch == Triple::x86_64)
return 8; // GOT entry
else
return 0;
}
unsigned getStubAlignment() {
return 1;
}
struct EHFrameRelatedSections {
EHFrameRelatedSections() : EHFrameSID(RTDYLD_INVALID_SECTION_ID),
TextSID(RTDYLD_INVALID_SECTION_ID),