template <typename T> class SmallVectorImpl;
class TargetMachine;
- // DWARF encoding query type
- namespace DwarfEncoding {
- enum Target {
- Data = 0,
- CodeLabels = 1,
- Functions = 2
- };
- }
-
/// TargetAsmInfo - This class is intended to be used as a base class for asm
/// properties and features specific to the target.
class TargetAsmInfo {
virtual unsigned getInlineAsmLength(const char *Str) const;
/// PreferredEHDataFormat - This hook allows the target to select data
- /// format used for encoding pointers in exception handling data. Reason is
- /// 0 for data, 1 for code labels, 2 for function pointers. Global is true
- /// if the symbol can be relocated.
- virtual unsigned PreferredEHDataFormat(DwarfEncoding::Target Reason,
- bool Global) const;
+ /// format used for encoding pointers in exception handling data.
+ virtual unsigned PreferredEHDataFormat() const;
/// getSLEB128Size - Compute the number of bytes required for a signed
DwarfExceptionSection = ".section __DATA,__gcc_except_tab";
}
-unsigned
-X86DarwinTargetAsmInfo::PreferredEHDataFormat(DwarfEncoding::Target Reason,
- bool Global) const {
+unsigned X86DarwinTargetAsmInfo::PreferredEHDataFormat() const {
const X86Subtarget *Subtarget = &TM.getSubtarget<X86Subtarget>();
-
- if (Subtarget->getDarwinVers() > 9) {
- if ((Reason == DwarfEncoding::Data || Reason == DwarfEncoding::Functions)
- && Global)
- return DW_EH_PE_pcrel | DW_EH_PE_indirect | DW_EH_PE_sdata4;
-
- if (Reason == DwarfEncoding::CodeLabels || !Global)
- return DW_EH_PE_pcrel;
- }
+ if (Subtarget->getDarwinVers() > 9)
+ return DW_EH_PE_pcrel | DW_EH_PE_indirect | DW_EH_PE_sdata4;
return DW_EH_PE_absptr;
}
}
unsigned
-X86ELFTargetAsmInfo::PreferredEHDataFormat(DwarfEncoding::Target Reason,
- bool Global) const {
+X86ELFTargetAsmInfo::PreferredEHDataFormat() const {
CodeModel::Model CM = TM.getCodeModel();
bool is64Bit = TM.getSubtarget<X86Subtarget>().is64Bit();
// - code model is small OR
// - code model is medium and we're emitting externally visible symbols
// or any code symbols
- if (CM == CodeModel::Small ||
- (CM == CodeModel::Medium && (Global ||
- Reason != DwarfEncoding::Data)))
+ if (CM == CodeModel::Small || CM == CodeModel::Medium)
Format = DW_EH_PE_sdata4;
else
Format = DW_EH_PE_sdata8;
}
- if (Global)
- Format |= DW_EH_PE_indirect;
-
+ Format |= DW_EH_PE_indirect;
return (Format | DW_EH_PE_pcrel);
- } else {
- if (is64Bit &&
- (CM == CodeModel::Small ||
- (CM == CodeModel::Medium && Reason != DwarfEncoding::Data)))
- return DW_EH_PE_udata4;
- else
- return DW_EH_PE_absptr;
}
+
+ if (is64Bit && CM == CodeModel::Small)
+ return DW_EH_PE_udata4;
+ return DW_EH_PE_absptr;
}
unsigned
-X86COFFTargetAsmInfo::PreferredEHDataFormat(DwarfEncoding::Target Reason,
- bool Global) const {
+X86COFFTargetAsmInfo::PreferredEHDataFormat() const {
CodeModel::Model CM = TM.getCodeModel();
bool is64Bit = TM.getSubtarget<X86Subtarget>().is64Bit();
// - code model is small OR
// - code model is medium and we're emitting externally visible symbols
// or any code symbols
- if (CM == CodeModel::Small ||
- (CM == CodeModel::Medium && (Global ||
- Reason != DwarfEncoding::Data)))
+ if (CM == CodeModel::Small || CM == CodeModel::Medium)
Format = DW_EH_PE_sdata4;
else
Format = DW_EH_PE_sdata8;
}
- if (Global)
- Format |= DW_EH_PE_indirect;
-
+ Format |= DW_EH_PE_indirect;
return (Format | DW_EH_PE_pcrel);
}
- if (is64Bit &&
- (CM == CodeModel::Small ||
- (CM == CodeModel::Medium && Reason != DwarfEncoding::Data)))
+ if (is64Bit && CM == CodeModel::Small)
return DW_EH_PE_udata4;
return DW_EH_PE_absptr;
}
struct X86DarwinTargetAsmInfo : public X86TargetAsmInfo<DarwinTargetAsmInfo> {
explicit X86DarwinTargetAsmInfo(const X86TargetMachine &TM);
- virtual unsigned PreferredEHDataFormat(DwarfEncoding::Target Reason,
- bool Global) const;
+ virtual unsigned PreferredEHDataFormat() const;
virtual const char *getEHGlobalPrefix() const;
};
struct X86ELFTargetAsmInfo : public X86TargetAsmInfo<ELFTargetAsmInfo> {
explicit X86ELFTargetAsmInfo(const X86TargetMachine &TM);
- virtual unsigned PreferredEHDataFormat(DwarfEncoding::Target Reason,
- bool Global) const;
+ virtual unsigned PreferredEHDataFormat() const;
};
struct X86COFFTargetAsmInfo : public X86TargetAsmInfo<COFFTargetAsmInfo> {
explicit X86COFFTargetAsmInfo(const X86TargetMachine &TM) :
X86TargetAsmInfo<COFFTargetAsmInfo>(TM) {}
- virtual unsigned PreferredEHDataFormat(DwarfEncoding::Target Reason,
- bool Global) const;
+ virtual unsigned PreferredEHDataFormat() const;
};