[Object][ELF] Support dumping hash-tables from files with no section table.

[oota-llvm.git] / include / llvm / Object / ELFTypes.h

diff --git a/include/llvm/Object/ELFTypes.h b/include/llvm/Object/ELFTypes.h
index 3dcd46ef3052b16b762cabb5550ac41f4b65a249..1e6e20e0013e5932edd6067c4d6ee7c9144cd47b 100644 (file)
--- a/include/llvm/Object/ELFTypes.h
+++ b/include/llvm/Object/ELFTypes.h
@@ -10,9 +10,12 @@
 #ifndef LLVM_OBJECT_ELFTYPES_H
 #define LLVM_OBJECT_ELFTYPES_H
 
+#include "llvm/ADT/ArrayRef.h"
+#include "llvm/Object/Error.h"
 #include "llvm/Support/DataTypes.h"
 #include "llvm/Support/ELF.h"
 #include "llvm/Support/Endian.h"
+#include "llvm/Support/ErrorOr.h"
 
 namespace llvm {
 namespace object {
@@ -205,8 +208,18 @@ struct Elf_Sym_Impl : Elf_Sym_Base<ELFT> {
   bool isExternal() const {
     return getBinding() != ELF::STB_LOCAL;
   }
+
+  ErrorOr<StringRef> getName(StringRef StrTab) const;
 };
 
+template <class ELFT>
+ErrorOr<StringRef> Elf_Sym_Impl<ELFT>::getName(StringRef StrTab) const {
+  uint32_t Offset = this->st_name;
+  if (Offset >= StrTab.size())
+    return object_error::parse_failed;
+  return StringRef(StrTab.data() + Offset);
+}
+
 /// Elf_Versym: This is the structure of entries in the SHT_GNU_versym section
 /// (.gnu.version). This structure is identical for ELF32 and ELF64.
 template <class ELFT>
@@ -451,6 +464,23 @@ struct Elf_Phdr_Impl<ELFType<TargetEndianness, true>> {
   Elf_Xword p_align;  // Segment alignment constraint
 };
 
+// ELFT needed for endianess.
+template <class ELFT>
+struct Elf_Hash {
+  LLVM_ELF_IMPORT_TYPES_ELFT(ELFT)
+  Elf_Word nbucket;
+  Elf_Word nchain;
+
+  ArrayRef<Elf_Word> buckets() const {
+    return ArrayRef<Elf_Word>(&nbucket + 2, &nbucket + 2 + nbucket);
+  }
+
+  ArrayRef<Elf_Word> chains() const {
+    return ArrayRef<Elf_Word>(&nbucket + 2 + nbucket,
+                              &nbucket + 2 + nbucket + nchain);
+  }
+};
+
 // MIPS .reginfo section
 template <class ELFT>
 struct Elf_Mips_RegInfo;