diff options
Diffstat (limited to 'include/llvm/Target/TargetMachine.h')
| -rw-r--r-- | include/llvm/Target/TargetMachine.h | 35 |
1 files changed, 31 insertions, 4 deletions
diff --git a/include/llvm/Target/TargetMachine.h b/include/llvm/Target/TargetMachine.h index 84cd5b4..4db3d3e 100644 --- a/include/llvm/Target/TargetMachine.h +++ b/include/llvm/Target/TargetMachine.h @@ -81,6 +81,14 @@ namespace CodeGenOpt { }; } +// Specify if we should encode the LSDA pointer in the FDE as 4- or 8-bytes. +namespace DwarfLSDAEncoding { + enum Encoding { + Default, + FourByte, + EightByte + }; +} //===----------------------------------------------------------------------===// /// @@ -129,10 +137,7 @@ public: /// TargetSubtarget. In debug builds, it verifies that the object being /// returned is of the correct type. template<typename STC> const STC &getSubtarget() const { - const TargetSubtarget *TST = getSubtargetImpl(); - assert(TST && dynamic_cast<const STC*>(TST) && - "Not the right kind of subtarget!"); - return *static_cast<const STC*>(TST); + return *static_cast<const STC*>(getSubtargetImpl()); } /// getRegisterInfo - If register information is available, return it. If @@ -192,6 +197,20 @@ public: /// is false. static void setAsmVerbosityDefault(bool); + /// getLSDAEncoding - Returns the LSDA pointer encoding. The choices are + /// 4-byte, 8-byte, and target default. The CIE is hard-coded to indicate that + /// the LSDA pointer in the FDE section is an "sdata4", and should be encoded + /// as a 4-byte pointer by default. However, some systems may require a + /// different size due to bugs or other conditions. We will default to a + /// 4-byte encoding unless the system tells us otherwise. + /// + /// FIXME: This call-back isn't good! We should be using the correct encoding + /// regardless of the system. However, there are some systems which have bugs + /// that prevent this from occuring. + virtual DwarfLSDAEncoding::Encoding getLSDAEncoding() const { + return DwarfLSDAEncoding::Default; + } + /// CodeGenFileType - These enums are meant to be passed into /// addPassesToEmitFile to indicate what type of file to emit. enum CodeGenFileType { @@ -452,6 +471,14 @@ public: bool addAssemblyEmitter(PassManagerBase &, CodeGenOpt::Level, bool /* VerboseAsmDefault */, formatted_raw_ostream &); + + /// addObjectFileEmitter - Helper function which creates a target specific + /// object files emitter, if available. This interface is temporary, for + /// bringing up MCAssembler-based object file emitters. + /// + /// \return Returns 'false' on success. + bool addObjectFileEmitter(PassManagerBase &, CodeGenOpt::Level, + formatted_raw_ostream &); }; } // End llvm namespace |
