llvm-objdump: add coff import library symbol listing support

This adds behaviour similar to binutils' objdump which can show symbols in an
import library.  Differences from that stem around the fact that we do not
create section symbols nor the all import import descriptor symbol reference.
However, this does mean that the tool can serve as a possible replacement for
the existing tool.

llvm-svn: 279088

1 files changed, 17 insertions, 0 deletions

diff --git a/llvm/tools/llvm-objdump/llvm-objdump.cpp b/llvm/tools/llvm-objdump/llvm-objdump.cpp
index 4fc4affa7f9..bff63e47b92 100644
--- a/llvm/tools/llvm-objdump/llvm-objdump.cpp
+++ b/llvm/tools/llvm-objdump/llvm-objdump.cpp
@@ -37,6 +37,7 @@
 #include "llvm/MC/MCSubtargetInfo.h"
 #include "llvm/Object/Archive.h"
 #include "llvm/Object/COFF.h"
+#include "llvm/Object/COFFImportFile.h"
 #include "llvm/Object/ELFObjectFile.h"
 #include "llvm/Object/MachO.h"
 #include "llvm/Object/ObjectFile.h"
@@ -1824,6 +1825,20 @@ static void DumpObject(const ObjectFile *o, const Archive *a = nullptr) {
   }
 }
 
+static void DumpObject(const COFFImportFile *I, const Archive *A) {
+  StringRef ArchiveName = A ? A->getFileName() : "";
+
+  // Avoid other output when using a raw option.
+  if (!RawClangAST)
+    outs() << '\n'
+           << ArchiveName << "(" << I->getFileName() << ")"
+           << ":\tfile format COFF-import-file"
+           << "\n\n";
+
+  if (SymbolTable)
+    printCOFFSymbolTable(I);
+}
+
 /// @brief Dump each object file in \a a;
 static void DumpArchive(const Archive *a) {
   Error Err;
@@ -1836,6 +1851,8 @@ static void DumpArchive(const Archive *a) {
     }
     if (ObjectFile *o = dyn_cast<ObjectFile>(&*ChildOrErr.get()))
       DumpObject(o, a);
+    else if (COFFImportFile *I = dyn_cast<COFFImportFile>(&*ChildOrErr.get()))
+      DumpObject(I, a);
     else
       report_error(a->getFileName(), object_error::invalid_file_type);
   }