[XCOFF] Decode the relocation entries of loader section of xcoff for llvm-readobj

Summary:

support decoding the relocation entries of loader section of xcoff for llvm-readobj

https://www.ibm.com/docs/en/aix/7.2?topic=formats-xcoff-object-file-format#XCOFF__vra3i31ejbau

Reviewers: James Henderson, Esme Yi
Differential Revision: https://reviews.llvm.org/D136787

1 files changed, 7 insertions, 2 deletions

diff --git a/llvm/tools/llvm-readobj/llvm-readobj.cpp b/llvm/tools/llvm-readobj/llvm-readobj.cpp
index b618b4f..15a6c68 100644
--- a/llvm/tools/llvm-readobj/llvm-readobj.cpp
+++ b/llvm/tools/llvm-readobj/llvm-readobj.cpp
@@ -164,6 +164,7 @@ static bool COFFTLSDirectory;
 static bool XCOFFAuxiliaryHeader;
 static bool XCOFFLoaderSectionHeader;
 static bool XCOFFLoaderSectionSymbol;
+static bool XCOFFLoaderSectionRelocation;
 static bool XCOFFExceptionSection;
 
 OutputStyleTy Output = OutputStyleTy::LLVM;
@@ -307,6 +308,8 @@ static void parseOptions(const opt::InputArgList &Args) {
   opts::XCOFFAuxiliaryHeader = Args.hasArg(OPT_auxiliary_header);
   opts::XCOFFLoaderSectionHeader = Args.hasArg(OPT_loader_section_header);
   opts::XCOFFLoaderSectionSymbol = Args.hasArg(OPT_loader_section_symbols);
+  opts::XCOFFLoaderSectionRelocation =
+      Args.hasArg(OPT_loader_section_relocations);
   opts::XCOFFExceptionSection = Args.hasArg(OPT_exception_section);
 
   opts::InputFilenames = Args.getAllArgValues(OPT_INPUT);
@@ -512,9 +515,11 @@ static void dumpObject(ObjectFile &Obj, ScopedPrinter &Writer,
   }
 
   if (Obj.isXCOFF()) {
-    if (opts::XCOFFLoaderSectionHeader || opts::XCOFFLoaderSectionSymbol)
+    if (opts::XCOFFLoaderSectionHeader || opts::XCOFFLoaderSectionSymbol ||
+        opts::XCOFFLoaderSectionRelocation)
       Dumper->printLoaderSection(opts::XCOFFLoaderSectionHeader,
-                                 opts::XCOFFLoaderSectionSymbol);
+                                 opts::XCOFFLoaderSectionSymbol,
+                                 opts::XCOFFLoaderSectionRelocation);
 
     if (opts::XCOFFExceptionSection)
       Dumper->printExceptionSection();