Simplified executable file formats

src/exe/elf/ProgramHeader.go

@@ -0,0 +1,16 @@
+package elf
+
+// ProgramHeaderSize is equal to the size of a program header in bytes.
+const ProgramHeaderSize = 56
+
+// ProgramHeader points to the executable part of our program.
+type ProgramHeader struct {
+	Type            ProgramType
+	Flags           ProgramFlags
+	Offset          int64
+	VirtualAddress  int64
+	PhysicalAddress int64
+	SizeInFile      int64
+	SizeInMemory    int64
+	Align           int64
+}