#include "llvm/ADT/StringRef.h"
#include "llvm/MC/MCSection.h"
-#include "llvm/Support/COFF.h"
namespace llvm {
class MCSymbol;
-/// MCSectionCOFF - This represents a section on Windows
- class MCSectionCOFF : public MCSection {
- // The memory for this string is stored in the same MCContext as *this.
- StringRef SectionName;
-
- // FIXME: The following fields should not be mutable, but are for now so
- // the asm parser can honor the .linkonce directive.
-
- /// Characteristics - This is the Characteristics field of a section,
- /// drawn from the enums below.
- mutable unsigned Characteristics;
-
- /// The COMDAT symbol of this section. Only valid if this is a COMDAT
- /// section. Two COMDAT sections are merged if they have the same
- /// COMDAT symbol.
- const MCSymbol *COMDATSymbol;
-
- /// Selection - This is the Selection field for the section symbol, if
- /// it is a COMDAT section (Characteristics & IMAGE_SCN_LNK_COMDAT) != 0
- mutable int Selection;
-
- /// Assoc - This is name of the associated section, if it is a COMDAT
- /// section (Characteristics & IMAGE_SCN_LNK_COMDAT) != 0 with an
- /// associative Selection (IMAGE_COMDAT_SELECT_ASSOCIATIVE).
- mutable const MCSectionCOFF *Assoc;
-
- private:
- friend class MCContext;
- MCSectionCOFF(StringRef Section, unsigned Characteristics,
- const MCSymbol *COMDATSymbol, int Selection,
- const MCSectionCOFF *Assoc, SectionKind K)
- : MCSection(SV_COFF, K), SectionName(Section),
- Characteristics(Characteristics), COMDATSymbol(COMDATSymbol),
- Selection(Selection), Assoc(Assoc) {
- assert ((Characteristics & 0x00F00000) == 0 &&
- "alignment must not be set upon section creation");
- assert ((Selection == COFF::IMAGE_COMDAT_SELECT_ASSOCIATIVE) ==
- (Assoc != nullptr) &&
- "associative COMDAT section must have an associated section");
- }
- ~MCSectionCOFF();
-
- public:
- /// ShouldOmitSectionDirective - Decides whether a '.section' directive
- /// should be printed before the section name
- bool ShouldOmitSectionDirective(StringRef Name, const MCAsmInfo &MAI) const;
-
- StringRef getSectionName() const { return SectionName; }
- std::string getLabelBeginName() const override {
- return SectionName.str() + "_begin";
- }
- std::string getLabelEndName() const override {
- return SectionName.str() + "_end";
- }
- unsigned getCharacteristics() const { return Characteristics; }
- const MCSymbol *getCOMDATSymbol() const { return COMDATSymbol; }
- int getSelection() const { return Selection; }
- const MCSectionCOFF *getAssocSection() const { return Assoc; }
-
- void setSelection(int Selection,
- const MCSectionCOFF *Assoc = nullptr) const;
-
- void PrintSwitchToSection(const MCAsmInfo &MAI, raw_ostream &OS,
- const MCExpr *Subsection) const override;
- bool UseCodeAlign() const override;
- bool isVirtualSection() const override;
-
- static bool classof(const MCSection *S) {
- return S->getVariant() == SV_COFF;
- }
- };
+/// This represents a section on Windows
+class MCSectionCOFF final : public MCSection {
+ // The memory for this string is stored in the same MCContext as *this.
+ StringRef SectionName;
+
+ // FIXME: The following fields should not be mutable, but are for now so the
+ // asm parser can honor the .linkonce directive.
+
+ /// This is the Characteristics field of a section, drawn from the enums
+ /// below.
+ mutable unsigned Characteristics;
+
+ /// The COMDAT symbol of this section. Only valid if this is a COMDAT section.
+ /// Two COMDAT sections are merged if they have the same COMDAT symbol.
+ MCSymbol *COMDATSymbol;
+
+ /// This is the Selection field for the section symbol, if it is a COMDAT
+ /// section (Characteristics & IMAGE_SCN_LNK_COMDAT) != 0
+ mutable int Selection;
+
+private:
+ friend class MCContext;
+ MCSectionCOFF(StringRef Section, unsigned Characteristics,
+ MCSymbol *COMDATSymbol, int Selection, SectionKind K,
+ MCSymbol *Begin)
+ : MCSection(SV_COFF, K, Begin), SectionName(Section),
+ Characteristics(Characteristics), COMDATSymbol(COMDATSymbol),
+ Selection(Selection) {
+ assert((Characteristics & 0x00F00000) == 0 &&
+ "alignment must not be set upon section creation");
+ }
+
+public:
+ ~MCSectionCOFF();
+
+ /// Decides whether a '.section' directive should be printed before the
+ /// section name
+ bool ShouldOmitSectionDirective(StringRef Name, const MCAsmInfo &MAI) const;
+
+ StringRef getSectionName() const { return SectionName; }
+ unsigned getCharacteristics() const { return Characteristics; }
+ MCSymbol *getCOMDATSymbol() const { return COMDATSymbol; }
+ int getSelection() const { return Selection; }
+
+ void setSelection(int Selection) const;
+
+ void PrintSwitchToSection(const MCAsmInfo &MAI, raw_ostream &OS,
+ const MCExpr *Subsection) const override;
+ bool UseCodeAlign() const override;
+ bool isVirtualSection() const override;
+
+ static bool classof(const MCSection *S) { return S->getVariant() == SV_COFF; }
+};
} // end namespace llvm