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-rw-r--r--include/llvm/Target/TargetELFWriterInfo.h39
1 files changed, 37 insertions, 2 deletions
diff --git a/include/llvm/Target/TargetELFWriterInfo.h b/include/llvm/Target/TargetELFWriterInfo.h
index e266a71..f7e3392 100644
--- a/include/llvm/Target/TargetELFWriterInfo.h
+++ b/include/llvm/Target/TargetELFWriterInfo.h
@@ -15,15 +15,21 @@
#define LLVM_TARGET_TARGETELFWRITERINFO_H
namespace llvm {
+ class Function;
+ class TargetData;
+ class TargetMachine;
//===--------------------------------------------------------------------===//
// TargetELFWriterInfo
//===--------------------------------------------------------------------===//
class TargetELFWriterInfo {
+ protected:
// EMachine - This field is the target specific value to emit as the
// e_machine member of the ELF header.
unsigned short EMachine;
+ TargetMachine &TM;
+ bool is64Bit, isLittleEndian;
public:
// Machine architectures
@@ -44,10 +50,39 @@ namespace llvm {
EM_X86_64 = 62 // AMD64
};
- explicit TargetELFWriterInfo(MachineType machine) : EMachine(machine) {}
- virtual ~TargetELFWriterInfo() {}
+ // ELF File classes
+ enum {
+ ELFCLASS32 = 1, // 32-bit object file
+ ELFCLASS64 = 2 // 64-bit object file
+ };
+
+ // ELF Endianess
+ enum {
+ ELFDATA2LSB = 1, // Little-endian object file
+ ELFDATA2MSB = 2 // Big-endian object file
+ };
+
+ explicit TargetELFWriterInfo(TargetMachine &tm);
+ virtual ~TargetELFWriterInfo();
unsigned short getEMachine() const { return EMachine; }
+ unsigned getEFlags() const { return 0; }
+ unsigned getEIClass() const { return is64Bit ? ELFCLASS64 : ELFCLASS32; }
+ unsigned getEIData() const {
+ return isLittleEndian ? ELFDATA2LSB : ELFDATA2MSB;
+ }
+
+ /// ELF Header and ELF Section Header Info
+ unsigned getHdrSize() const { return is64Bit ? 64 : 52; }
+ unsigned getSHdrSize() const { return is64Bit ? 64 : 40; }
+
+ /// Symbol Table Info
+ unsigned getSymTabEntrySize() const { return is64Bit ? 24 : 16; }
+ unsigned getSymTabAlignment() const { return is64Bit ? 8 : 4; }
+
+ /// getFunctionAlignment - Returns the alignment for function 'F', targets
+ /// with different alignment constraints should overload this method
+ virtual unsigned getFunctionAlignment(const Function *F) const;
};
} // end llvm namespace
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