#include "llvm/MC/MCSection.h"
+#include "llvm/Support/COFF.h"
+
namespace llvm {
-
+
/// 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;
-
- /// Flags - This is the Characteristics field of a section, drawn
- /// from the enums below.
- unsigned Flags;
+
+ /// Characteristics - This is the Characteristics field of a section,
+ // drawn from the enums below.
+ unsigned Characteristics;
+
+ /// Selection - This is the Selection field for the section symbol, if
+ /// it is a COMDAT section (Characteristics & IMAGE_SCN_LNK_COMDAT) != 0
+ int Selection;
private:
friend class MCContext;
- MCSectionCOFF(StringRef Section, unsigned flags, SectionKind K)
- : MCSection(K), SectionName(Section), Flags(flags) {
+ MCSectionCOFF(StringRef Section, unsigned Characteristics,
+ int Selection, SectionKind K)
+ : MCSection(SV_COFF, K), SectionName(Section),
+ Characteristics(Characteristics), Selection (Selection) {
+ assert ((Characteristics & 0x00F00000) == 0 &&
+ "alignment must not be set upon section creation");
}
~MCSectionCOFF();
/// should be printed before the section name
bool ShouldOmitSectionDirective(StringRef Name, const MCAsmInfo &MAI) const;
- /// Valid section flags.
- enum {
- IMAGE_SCN_TYPE_NO_PAD = 0x00000008,
- IMAGE_SCN_CNT_CODE = 0x00000020,
- IMAGE_SCN_CNT_INITIALIZED_DATA = 0x00000040,
- IMAGE_SCN_CNT_UNINITIALIZED_DATA = 0x00000080,
- IMAGE_SCN_LNK_OTHER = 0x00000100,
- IMAGE_SCN_LNK_INFO = 0x00000200,
- IMAGE_SCN_LNK_REMOVE = 0x00000800,
- IMAGE_SCN_LNK_COMDAT = 0x00001000,
- IMAGE_SCN_MEM_FARDATA = 0x00008000,
- IMAGE_SCN_MEM_PURGEABLE = 0x00020000,
- IMAGE_SCN_MEM_16BIT = 0x00020000,
- IMAGE_SCN_MEM_LOCKED = 0x00040000,
- IMAGE_SCN_MEM_PRELOAD = 0x00080000,
- IMAGE_SCN_ALIGN_1BYTES = 0x00100000,
- IMAGE_SCN_ALIGN_2BYTES = 0x00200000,
- IMAGE_SCN_ALIGN_4BYTES = 0x00300000,
- IMAGE_SCN_ALIGN_8BYTES = 0x00400000,
- IMAGE_SCN_ALIGN_16BYTES = 0x00500000,
- IMAGE_SCN_ALIGN_32BYTES = 0x00600000,
- IMAGE_SCN_ALIGN_64BYTES = 0x00700000,
- IMAGE_SCN_LNK_NRELOC_OVFL = 0x01000000,
- IMAGE_SCN_MEM_DISCARDABLE = 0x02000000,
- IMAGE_SCN_MEM_NOT_CACHED = 0x04000000,
- IMAGE_SCN_MEM_NOT_PAGED = 0x08000000,
- IMAGE_SCN_MEM_SHARED = 0x10000000,
- IMAGE_SCN_MEM_EXECUTE = 0x20000000,
- IMAGE_SCN_MEM_READ = 0x40000000,
- IMAGE_SCN_MEM_WRITE = 0x80000000
- };
-
StringRef getSectionName() const { return SectionName; }
- unsigned getFlags() const { return Flags; }
-
+ unsigned getCharacteristics() const { return Characteristics; }
+ int getSelection () const { return Selection; }
+
virtual void PrintSwitchToSection(const MCAsmInfo &MAI,
raw_ostream &OS) const;
+ virtual bool UseCodeAlign() const;
+ virtual bool isVirtualSection() const;
+
+ static bool classof(const MCSection *S) {
+ return S->getVariant() == SV_COFF;
+ }
+ static bool classof(const MCSectionCOFF *) { return true; }
};
} // end namespace llvm