From 12a261e117f0e638362550cc675e266ceefceddd Mon Sep 17 00:00:00 2001
From: Tim Northover <tnorthover@apple.com>
Date: Mon, 30 Jun 2014 14:40:57 +0000
Subject: [PATCH] macho-dump: add code to print LC_ID_DYLIB load commands.

I want to check them in lld.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212043 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/llvm/Object/MachO.h     |  2 ++
 lib/Object/MachOObjectFile.cpp  |  6 ++++++
 tools/macho-dump/macho-dump.cpp | 13 +++++++++++++
 3 files changed, 21 insertions(+)

diff --git a/include/llvm/Object/MachO.h b/include/llvm/Object/MachO.h
index 69a1e2d3fc8..96b254c6a90 100644
--- a/include/llvm/Object/MachO.h
+++ b/include/llvm/Object/MachO.h
@@ -201,6 +201,8 @@ public:
   getLinkerOptionsLoadCommand(const LoadCommandInfo &L) const;
   MachO::version_min_command
   getVersionMinLoadCommand(const LoadCommandInfo &L) const;
+  MachO::dylib_command
+  getDylibIDLoadCommand(const LoadCommandInfo &L) const;
 
   MachO::any_relocation_info getRelocation(DataRefImpl Rel) const;
   MachO::data_in_code_entry getDice(DataRefImpl Rel) const;
diff --git a/lib/Object/MachOObjectFile.cpp b/lib/Object/MachOObjectFile.cpp
index dbfc07270a6..5abd10068fa 100644
--- a/lib/Object/MachOObjectFile.cpp
+++ b/lib/Object/MachOObjectFile.cpp
@@ -1721,6 +1721,12 @@ MachOObjectFile::getVersionMinLoadCommand(const LoadCommandInfo &L) const {
   return getStruct<MachO::version_min_command>(this, L.Ptr);
 }
 
+MachO::dylib_command
+MachOObjectFile::getDylibIDLoadCommand(const LoadCommandInfo &L) const {
+  return getStruct<MachO::dylib_command>(this, L.Ptr);
+}
+
+
 MachO::any_relocation_info
 MachOObjectFile::getRelocation(DataRefImpl Rel) const {
   DataRefImpl Sec;
diff --git a/tools/macho-dump/macho-dump.cpp b/tools/macho-dump/macho-dump.cpp
index bfe1a6eaef4..760097974db 100644
--- a/tools/macho-dump/macho-dump.cpp
+++ b/tools/macho-dump/macho-dump.cpp
@@ -328,6 +328,17 @@ DumpVersionMin(const MachOObjectFile &Obj,
   return 0;
 }
 
+static int
+DumpDylibID(const MachOObjectFile &Obj,
+            const MachOObjectFile::LoadCommandInfo &LCI) {
+  MachO::dylib_command DLLC = Obj.getDylibIDLoadCommand(LCI);
+  outs() << "  ('install_name', '" << LCI.Ptr + DLLC.dylib.name << "')\n"
+         << "  ('timestamp, " << DLLC.dylib.timestamp << ")\n"
+         << "  ('cur_version, " << DLLC.dylib.current_version << ")\n"
+         << "  ('compat_version, " << DLLC.dylib.compatibility_version << ")\n";
+  return 0;
+}
+
 static int DumpLoadCommand(const MachOObjectFile &Obj,
                            MachOObjectFile::LoadCommandInfo &LCI) {
   switch (LCI.C.cmd) {
@@ -350,6 +361,8 @@ static int DumpLoadCommand(const MachOObjectFile &Obj,
   case MachO::LC_VERSION_MIN_IPHONEOS:
   case MachO::LC_VERSION_MIN_MACOSX:
     return DumpVersionMin(Obj, LCI);
+  case MachO::LC_ID_DYLIB:
+    return DumpDylibID(Obj, LCI);
   default:
     Warning("unknown load command: " + Twine(LCI.C.cmd));
     return 0;
-- 
2.34.1