[llvm] r321498 - [llvm-readobj] Support -needed-libs option for COFF files

[Petr Hosek via llvm-commits]

Author: phosek
Date: Wed Dec 27 11:59:56 2017
New Revision: 321498

URL: http://llvm.org/viewvc/llvm-project?rev=321498&view=rev
Log:
[llvm-readobj] Support -needed-libs option for COFF files

This implements the -needed-libs option in the COFF dumper.

Differential Revision: https://reviews.llvm.org/D41529

Added:
    llvm/trunk/test/tools/llvm-readobj/Inputs/needed-libs.obj.coff-am64
    llvm/trunk/test/tools/llvm-readobj/coff-needed-libs.test
Modified:
    llvm/trunk/tools/llvm-readobj/COFFDumper.cpp

Added: llvm/trunk/test/tools/llvm-readobj/Inputs/needed-libs.obj.coff-am64
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/tools/llvm-readobj/Inputs/needed-libs.obj.coff-am64?rev=321498&view=auto
==============================================================================
Binary files llvm/trunk/test/tools/llvm-readobj/Inputs/needed-libs.obj.coff-am64 (added) and llvm/trunk/test/tools/llvm-readobj/Inputs/needed-libs.obj.coff-am64 Wed Dec 27 11:59:56 2017 differ

Added: llvm/trunk/test/tools/llvm-readobj/coff-needed-libs.test
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/tools/llvm-readobj/coff-needed-libs.test?rev=321498&view=auto
==============================================================================
--- llvm/trunk/test/tools/llvm-readobj/coff-needed-libs.test (added)
+++ llvm/trunk/test/tools/llvm-readobj/coff-needed-libs.test Wed Dec 27 11:59:56 2017
@@ -0,0 +1,5 @@
+RUN: llvm-readobj -needed-libs %p/Inputs/needed-libs.obj.coff-am64 | FileCheck %s
+
+CHECK:      NeededLibraries [
+CHECK-NEXT:   KERNEL32.dll
+CHECK-NEXT: ]

Modified: llvm/trunk/tools/llvm-readobj/COFFDumper.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/llvm-readobj/COFFDumper.cpp?rev=321498&r1=321497&r2=321498&view=diff
==============================================================================
--- llvm/trunk/tools/llvm-readobj/COFFDumper.cpp (original)
+++ llvm/trunk/tools/llvm-readobj/COFFDumper.cpp Wed Dec 27 11:59:56 2017
@@ -81,6 +81,9 @@ public:
   void printSymbols() override;
   void printDynamicSymbols() override;
   void printUnwindInfo() override;
+
+  void printNeededLibraries() override;
+
   void printCOFFImports() override;
   void printCOFFExports() override;
   void printCOFFDirectives() override;
@@ -1522,6 +1525,25 @@ void COFFDumper::printUnwindInfo() {
   }
 }
 
+void COFFDumper::printNeededLibraries() {
+  ListScope D(W, "NeededLibraries");
+
+  using LibsTy = std::vector<StringRef>;
+  LibsTy Libs;
+
+  for (const ImportDirectoryEntryRef &DirRef : Obj->import_directories()) {
+    StringRef Name;
+    if (!DirRef.getName(Name))
+      Libs.push_back(Name);
+  }
+
+  std::stable_sort(Libs.begin(), Libs.end());
+
+  for (const auto &L : Libs) {
+    outs() << "  " << L << "\n";
+  }
+}
+
 void COFFDumper::printImportedSymbols(
     iterator_range<imported_symbol_iterator> Range) {
   for (const ImportedSymbolRef &I : Range) {