[XCOFF] Implement parsing symbol table for xcoffobjfile and output as yaml format

Summary:
This patch implement parsing symbol table for xcoffobjfile and
output as yaml format. Parsing auxiliary entries of a symbol
will be in a separate patch.

The XCOFF object file (aix_xcoff.o) used in the test comes from
-bash-4.2$ cat test.c
extern int i;
extern int TestforXcoff;
int main()
{
i++;
TestforXcoff--;
}

Patch by DiggerLin

Reviewers: sfertile, hubert.reinterpretcast, MaskRay, daltenty

Differential Revision: https://reviews.llvm.org/D61532

llvm-svn: 361832

1 files changed, 67 insertions, 0 deletions

diff --git a/llvm/lib/ObjectYAML/XCOFFYAML.cpp b/llvm/lib/ObjectYAML/XCOFFYAML.cpp
index c3fe1bb868c..982e6aecbb9 100644
--- a/llvm/lib/ObjectYAML/XCOFFYAML.cpp
+++ b/llvm/lib/ObjectYAML/XCOFFYAML.cpp
@@ -11,6 +11,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/ObjectYAML/XCOFFYAML.h"
+#include "llvm/BinaryFormat/XCOFF.h"
 #include <string.h>
 
 namespace llvm {
@@ -22,6 +23,62 @@ Object::Object() { memset(&Header, 0, sizeof(Header)); }
 
 namespace yaml {
 
+void ScalarEnumerationTraits<XCOFF::StorageClass>::enumeration(
+    IO &IO, XCOFF::StorageClass &Value) {
+#define ECase(X) IO.enumCase(Value, #X, XCOFF::X)
+  ECase(C_NULL);
+  ECase(C_AUTO);
+  ECase(C_EXT);
+  ECase(C_STAT);
+  ECase(C_REG);
+  ECase(C_EXTDEF);
+  ECase(C_LABEL);
+  ECase(C_ULABEL);
+  ECase(C_MOS);
+  ECase(C_ARG);
+  ECase(C_STRTAG);
+  ECase(C_MOU);
+  ECase(C_UNTAG);
+  ECase(C_TPDEF);
+  ECase(C_USTATIC);
+  ECase(C_ENTAG);
+  ECase(C_MOE);
+  ECase(C_REGPARM);
+  ECase(C_FIELD);
+  ECase(C_BLOCK);
+  ECase(C_FCN);
+  ECase(C_EOS);
+  ECase(C_FILE);
+  ECase(C_LINE);
+  ECase(C_ALIAS);
+  ECase(C_HIDDEN);
+  ECase(C_HIDEXT);
+  ECase(C_BINCL);
+  ECase(C_EINCL);
+  ECase(C_INFO);
+  ECase(C_WEAKEXT);
+  ECase(C_DWARF);
+  ECase(C_GSYM);
+  ECase(C_LSYM);
+  ECase(C_PSYM);
+  ECase(C_RSYM);
+  ECase(C_RPSYM);
+  ECase(C_STSYM);
+  ECase(C_TCSYM);
+  ECase(C_BCOMM);
+  ECase(C_ECOML);
+  ECase(C_ECOMM);
+  ECase(C_DECL);
+  ECase(C_ENTRY);
+  ECase(C_FUN);
+  ECase(C_BSTAT);
+  ECase(C_ESTAT);
+  ECase(C_GTLS);
+  ECase(C_STTLS);
+  ECase(C_EFCN);
+#undef ECase
+}
+
 void MappingTraits<XCOFFYAML::FileHeader>::mapping(
     IO &IO, XCOFFYAML::FileHeader &FileHdr) {
   IO.mapRequired("MagicNumber", FileHdr.Magic);
@@ -33,9 +90,19 @@ void MappingTraits<XCOFFYAML::FileHeader>::mapping(
   IO.mapRequired("Flags", FileHdr.Flags);
 }
 
+void MappingTraits<XCOFFYAML::Symbol>::mapping(IO &IO, XCOFFYAML::Symbol &S) {
+  IO.mapRequired("Name", S.SymbolName);
+  IO.mapRequired("Value", S.Value);
+  IO.mapRequired("Section", S.SectionName);
+  IO.mapRequired("Type", S.Type);
+  IO.mapRequired("StorageClass", S.StorageClass);
+  IO.mapRequired("NumberOfAuxEntries", S.NumberOfAuxEntries);
+}
+
 void MappingTraits<XCOFFYAML::Object>::mapping(IO &IO, XCOFFYAML::Object &Obj) {
   IO.mapTag("!XCOFF", true);
   IO.mapRequired("FileHeader", Obj.Header);
+  IO.mapRequired("Symbols", Obj.Symbols);
 }
 
 } // namespace yaml