Add a way of printing out an arbitrary label name for a section

given the section.

llvm-svn: 170087
This commit is contained in:
Eric Christopher 2012-12-13 03:00:35 +00:00
parent c1bdef1400
commit 325c9ba723
5 changed files with 31 additions and 0 deletions

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@ -14,6 +14,7 @@
#ifndef LLVM_MC_MCSECTION_H
#define LLVM_MC_MCSECTION_H
#include "llvm/ADT/StringRef.h"
#include "llvm/MC/SectionKind.h"
#include "llvm/Support/Compiler.h"
@ -49,6 +50,11 @@ namespace llvm {
virtual void PrintSwitchToSection(const MCAsmInfo &MAI,
raw_ostream &OS) const = 0;
// Convenience routines to get label names for the beginning/end of a
// section.
virtual std::string getLabelBeginName() const = 0;
virtual std::string getLabelEndName() const = 0;
/// isBaseAddressKnownZero - Return true if we know that this section will
/// get a base address of zero. In cases where we know that this is true we
/// can emit section offsets as direct references to avoid a subtraction

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@ -50,6 +50,12 @@ namespace llvm {
bool ShouldOmitSectionDirective(StringRef Name, const MCAsmInfo &MAI) const;
StringRef getSectionName() const { return SectionName; }
virtual std::string getLabelBeginName() const {
return SectionName.str() + "_begin";
}
virtual std::string getLabelEndName() const {
return SectionName.str() + "_end";
}
unsigned getCharacteristics() const { return Characteristics; }
int getSelection () const { return Selection; }

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@ -17,6 +17,8 @@
#include "llvm/ADT/StringRef.h"
#include "llvm/MC/MCSection.h"
#include "llvm/Support/ELF.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Support/Debug.h"
namespace llvm {
@ -57,6 +59,13 @@ public:
bool ShouldOmitSectionDirective(StringRef Name, const MCAsmInfo &MAI) const;
StringRef getSectionName() const { return SectionName; }
virtual std::string getLabelBeginName() const {
dbgs() << SectionName.data();
dbgs() << "_begin" << "\n";
return SectionName.str() + "_begin"; }
virtual std::string getLabelEndName() const {
return SectionName.str() + "_end";
}
unsigned getType() const { return Type; }
unsigned getFlags() const { return Flags; }
unsigned getEntrySize() const { return EntrySize; }

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@ -145,6 +145,14 @@ public:
return StringRef(SectionName);
}
virtual std::string getLabelBeginName() const {
return StringRef(getSegmentName().str() + getSectionName().str() + "_begin");
}
virtual std::string getLabelEndName() const {
return StringRef(getSegmentName().str() + getSectionName().str() + "_end");
}
unsigned getTypeAndAttributes() const { return TypeAndAttributes; }
unsigned getStubSize() const { return Reserved2; }

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@ -38,6 +38,8 @@ public:
virtual bool isBaseAddressKnownZero() const { return true; }
virtual bool UseCodeAlign() const { return false; }
virtual bool isVirtualSection() const { return false; }
virtual std::string getLabelBeginName() const { return ""; }
virtual std::string getLabelEndName() const { return ""; }
};
} // end namespace llvm