[llvm-readobj] Dump MachO Dysymtab command.

Example output:

File: <stdin>
Format: Mach-O 64-bit x86-64
Arch: x86_64
AddressSize: 64bit
Dysymtab {

ilocalsym: 0
nlocalsym: 6
iextdefsym: 6
nextdefsym: 2
iundefsym: 8
nundefsym: 0
tocoff: 0
ntoc: 0
modtaboff: 0
nmodtab: 0
extrefsymoff: 0
nextrefsyms: 0
indirectsymoff: 0
nindirectsyms: 0
extreloff: 0
nextrel: 0
locreloff: 0
nlocrel: 0

}

Differential Revision:	http://reviews.llvm.org/D12496

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246474 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/tools/llvm-readobj/MachODumper.cpp b/tools/llvm-readobj/MachODumper.cpp
index 57db9ed7b2d87b5404e6cd555af7646dab73a53c..e7cda4d84d48d9ab30c2452ab33d99a86a702dc7 100644 (file)
--- a/tools/llvm-readobj/MachODumper.cpp
+++ b/tools/llvm-readobj/MachODumper.cpp
@@ -43,6 +43,7 @@ public:
   // MachO-specific.
   void printMachODataInCode() override;
   void printMachOVersionMin() override;
   // MachO-specific.
   void printMachODataInCode() override;
   void printMachOVersionMin() override;

+  void printMachODysymtab() override;

 
 private:
   template<class MachHeader>
 
 private:
   template<class MachHeader>


@@ -663,3 +664,30 @@ void MachODumper::printMachOVersionMin() {
     }
   }
 }
     }
   }
 }

+
+void MachODumper::printMachODysymtab() {
+  for (const auto &Load : Obj->load_commands()) {
+    if (Load.C.cmd == MachO::LC_DYSYMTAB) {
+      MachO::dysymtab_command DLC = Obj->getDysymtabLoadCommand();
+      DictScope Group(W, "Dysymtab");
+      W.printNumber("ilocalsym", DLC.ilocalsym);
+      W.printNumber("nlocalsym", DLC.nlocalsym);
+      W.printNumber("iextdefsym", DLC.iextdefsym);
+      W.printNumber("nextdefsym", DLC.nextdefsym);
+      W.printNumber("iundefsym", DLC.iundefsym);
+      W.printNumber("nundefsym", DLC.nundefsym);
+      W.printNumber("tocoff", DLC.tocoff);
+      W.printNumber("ntoc", DLC.ntoc);
+      W.printNumber("modtaboff", DLC.modtaboff);
+      W.printNumber("nmodtab", DLC.nmodtab);
+      W.printNumber("extrefsymoff", DLC.extrefsymoff);
+      W.printNumber("nextrefsyms", DLC.nextrefsyms);
+      W.printNumber("indirectsymoff", DLC.indirectsymoff);
+      W.printNumber("nindirectsyms", DLC.nindirectsyms);
+      W.printNumber("extreloff", DLC.extreloff);
+      W.printNumber("nextrel", DLC.nextrel);
+      W.printNumber("locreloff", DLC.locreloff);
+      W.printNumber("nlocrel", DLC.nlocrel);
+    }
+  }
+}

diff --git a/tools/llvm-readobj/ObjDumper.h b/tools/llvm-readobj/ObjDumper.h
index 03a71b82ba68f945a94ad4dfb8efbfcfb97b48a2..22051708efaf6da1debb62b5bf03b2fc6b6b74f4 100644 (file)
--- a/tools/llvm-readobj/ObjDumper.h
+++ b/tools/llvm-readobj/ObjDumper.h
@@ -58,6 +58,7 @@ public:
   // Only implemented for MachO.
   virtual void printMachODataInCode() { }
   virtual void printMachOVersionMin() { }
   // Only implemented for MachO.
   virtual void printMachODataInCode() { }
   virtual void printMachOVersionMin() { }

+  virtual void printMachODysymtab() { }

 
   virtual void printStackMap() const = 0;
 
 
   virtual void printStackMap() const = 0;
 

diff --git a/tools/llvm-readobj/llvm-readobj.cpp b/tools/llvm-readobj/llvm-readobj.cpp
index d21303192a3ba4cf3a526577227584c61187bedd..c0e6add4f2cde446881d62cf19c8e63892cf1731 100644 (file)
--- a/tools/llvm-readobj/llvm-readobj.cpp
+++ b/tools/llvm-readobj/llvm-readobj.cpp
@@ -191,6 +191,12 @@ namespace opts {
   cl::opt<bool>
   MachOVersionMin("macho-version-min",
                   cl::desc("Display MachO version min command"));
   cl::opt<bool>
   MachOVersionMin("macho-version-min",
                   cl::desc("Display MachO version min command"));

+
+  // -macho-dysymtab
+  cl::opt<bool>
+  MachODysymtab("macho-dysymtab",
+                  cl::desc("Display MachO Dysymtab command"));
+

   // -stackmap
   cl::opt<bool>
   PrintStackMap("stackmap",
   // -stackmap
   cl::opt<bool>
   PrintStackMap("stackmap",


@@ -327,6 +333,8 @@ static void dumpObject(const ObjectFile *Obj) {
       Dumper->printMachODataInCode();
     if (opts::MachOVersionMin)
       Dumper->printMachOVersionMin();
       Dumper->printMachODataInCode();
     if (opts::MachOVersionMin)
       Dumper->printMachOVersionMin();

+    if (opts::MachODysymtab)
+      Dumper->printMachODysymtab();

   }
   if (opts::PrintStackMap)
     Dumper->printStackMap();
   }
   if (opts::PrintStackMap)
     Dumper->printStackMap();