Basic support for parsing Mach-O universal binaries in LLVMObject library

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184191 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 18 insertions, 0 deletions

diff --git a/include/llvm/Object/MachOFormat.h b/include/llvm/Object/MachOFormat.h
index ffca391..96ee8a7 100644
--- a/include/llvm/Object/MachOFormat.h
+++ b/include/llvm/Object/MachOFormat.h
@@ -95,6 +95,8 @@ namespace macho {
   enum StructureSizes {
     Header32Size = 28,
     Header64Size = 32,
+    FatHeaderSize = 8,
+    FatArchHeaderSize = 20,
     SegmentLoadCommand32Size = 56,
     SegmentLoadCommand64Size = 72,
     Section32Size = 68,
@@ -130,6 +132,22 @@ namespace macho {
     uint32_t Reserved;
   };
 
+  /// \brief Header for universal object files.
+  struct FatHeader {
+    uint32_t Magic;
+    uint32_t NumFatArch;
+  };
+
+  /// \brief Header for a single-architecture object file in a
+  /// universal binary.
+  struct FatArchHeader {
+    uint32_t CPUType;
+    uint32_t CPUSubtype;
+    uint32_t Offset;
+    uint32_t Size;
+    uint32_t Align;
+  };
+
   // See <mach-o/loader.h>.
   enum HeaderFileType {
     HFT_Object = 0x1