[Object][ELF] Add support for dumping dynamic relocations when sections are stripped.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240703 91177308-0d34-0410-b5e6-96231b3b80d8

tools/llvm-readobj/llvm-readobj.cpp

@@ -40,7 +40,6 @@
 #include <string>
 #include <system_error>
 
-
 using namespace llvm;
 using namespace llvm::object;
 
@@ -91,6 +90,10 @@ namespace opts {
     cl::desc("Alias for --relocations"),
     cl::aliasopt(Relocations));
 
+  // -dyn-relocations
+  cl::opt<bool> DynRelocs("dyn-relocations",
+    cl::desc("Display the dynamic relocation entries in the file"));
+
   // -symbols, -t
   cl::opt<bool> Symbols("symbols",
     cl::desc("Display the symbol table"));
@@ -280,6 +283,8 @@ static void dumpObject(const ObjectFile *Obj) {
     Dumper->printSections();
   if (opts::Relocations)
     Dumper->printRelocations();
+  if (opts::DynRelocs)
+    Dumper->printDynamicRelocations();
   if (opts::Symbols)
     Dumper->printSymbols();
   if (opts::DynamicSymbols)
@@ -313,7 +318,6 @@ static void dumpObject(const ObjectFile *Obj) {
     Dumper->printCOFFBaseReloc();
 }
 
-
 /// @brief Dumps each object file in \a Arc;
 static void dumpArchive(const Archive *Arc) {
   for (Archive::child_iterator ArcI = Arc->child_begin(),
@@ -374,7 +378,6 @@ static void dumpInput(StringRef File) {
     reportError(File, readobj_error::unrecognized_file_format);
 }
 
-
 int main(int argc, const char *argv[]) {
   sys::PrintStackTraceOnErrorSignal();
   PrettyStackTraceProgram X(argc, argv);