Add a ELFSectionRef class and use it to expose getSectionType.

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

diff --git a/include/llvm/Object/ELFTypes.h b/include/llvm/Object/ELFTypes.h
index 09a6fea53efcfddd68abebf83e4dd9a6ae980445..8a648e509889ce84977cd99bf585ae7abaff6466 100644 (file)
--- a/include/llvm/Object/ELFTypes.h
+++ b/include/llvm/Object/ELFTypes.h
@@ -24,6 +24,11 @@ template <endianness target_endianness, bool is64Bits> struct ELFType {
   static const bool Is64Bits = is64Bits;
 };
 
+typedef ELFType<support::little, false> ELF32LE;
+typedef ELFType<support::big, false> ELF32BE;
+typedef ELFType<support::little, true> ELF64LE;
+typedef ELFType<support::big, true> ELF64BE;
+
 // Use an alignment of 2 for the typedefs since that is the worst case for
 // ELF files in archives.
 
@@ -156,11 +161,13 @@ struct Elf_Sym_Impl : Elf_Sym_Base<ELFT> {
   using Elf_Sym_Base<ELFT>::st_info;
   using Elf_Sym_Base<ELFT>::st_shndx;
   using Elf_Sym_Base<ELFT>::st_other;
+  using Elf_Sym_Base<ELFT>::st_value;
 
   // These accessors and mutators correspond to the ELF32_ST_BIND,
   // ELF32_ST_TYPE, and ELF32_ST_INFO macros defined in the ELF specification:
   unsigned char getBinding() const { return st_info >> 4; }
   unsigned char getType() const { return st_info & 0x0f; }
+  uint64_t getValue() const { return st_value; }
   void setBinding(unsigned char b) { setBindingAndType(b, getType()); }
   void setType(unsigned char t) { setBindingAndType(getBinding(), t); }
   void setBindingAndType(unsigned char b, unsigned char t) {
@@ -180,15 +187,9 @@ struct Elf_Sym_Impl : Elf_Sym_Base<ELFT> {
 
   bool isAbsolute() const { return st_shndx == ELF::SHN_ABS; }
   bool isCommon() const {
-    return !isUndefined() &&
-           !(st_shndx >= ELF::SHN_LORESERVE && st_shndx < ELF::SHN_ABS);
-  }
-  bool isDefined() const {
-    return !isUndefined() &&
-           (!(st_shndx >= ELF::SHN_LORESERVE &&
-              st_shndx <= ELF::SHN_HIRESERVE) ||
-            st_shndx == ELF::SHN_XINDEX);
+    return getType() == ELF::STT_COMMON || st_shndx == ELF::SHN_COMMON;
   }
+  bool isDefined() const { return !isUndefined(); }
   bool isProcessorSpecific() const {
     return st_shndx >= ELF::SHN_LOPROC && st_shndx <= ELF::SHN_HIPROC;
   }
@@ -196,9 +197,14 @@ struct Elf_Sym_Impl : Elf_Sym_Base<ELFT> {
     return st_shndx >= ELF::SHN_LOOS && st_shndx <= ELF::SHN_HIOS;
   }
   bool isReserved() const {
-    return st_shndx > ELF::SHN_HIOS && st_shndx < ELF::SHN_ABS;
+    // ELF::SHN_HIRESERVE is 0xffff so st_shndx <= ELF::SHN_HIRESERVE is always
+    // true and some compilers warn about it.
+    return st_shndx >= ELF::SHN_LORESERVE;
   }
   bool isUndefined() const { return st_shndx == ELF::SHN_UNDEF; }
+  bool isExternal() const {
+    return getBinding() != ELF::STB_LOCAL;
+  }
 };
 
 /// Elf_Versym: This is the structure of entries in the SHT_GNU_versym section
@@ -295,7 +301,7 @@ struct Elf_Dyn_Impl : Elf_Dyn_Base<ELFT> {
   using Elf_Dyn_Base<ELFT>::d_un;
   int64_t getTag() const { return d_tag; }
   uint64_t getVal() const { return d_un.d_val; }
-  uint64_t getPtr() const { return d_un.ptr; }
+  uint64_t getPtr() const { return d_un.d_ptr; }
 };
 
 // Elf_Rel: Elf Relocation