[llvm] r216400 - [MCJIT] Make RuntimeDyld dump section contents in -debug mode.

[Lang Hames]

Author: lhames
Date: Mon Aug 25 13:37:38 2014
New Revision: 216400

URL: http://llvm.org/viewvc/llvm-project?rev=216400&view=rev
Log:
[MCJIT] Make RuntimeDyld dump section contents in -debug mode.

Modified:
    llvm/trunk/lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.cpp
    llvm/trunk/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.cpp

Modified: llvm/trunk/lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.cpp?rev=216400&r1=216399&r2=216400&view=diff
==============================================================================
--- llvm/trunk/lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.cpp (original)
+++ llvm/trunk/lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.cpp Mon Aug 25 13:37:38 2014
@@ -41,6 +41,35 @@ void RuntimeDyldImpl::registerEHFrames()
 
 void RuntimeDyldImpl::deregisterEHFrames() {}
 
+static void dumpSectionMemory(const SectionEntry &S) {
+  dbgs() << "----- Contents of section " << S.Name << " -----";
+
+  uint8_t *DataAddr = S.Address;
+  uint64_t LoadAddr = S.LoadAddress;
+
+  unsigned StartPadding = LoadAddr & 7;
+  unsigned BytesRemaining = S.Size;
+
+  if (StartPadding) {
+    dbgs() << "\n" << format("0x%08x", LoadAddr & ~7) << ":";
+    while (StartPadding--)
+      dbgs() << "   ";
+  }
+
+  while (BytesRemaining > 0) {
+    if ((LoadAddr & 7) == 0)
+      dbgs() << "\n" << format("0x%08x", LoadAddr) << ":";
+
+    dbgs() << " " << format("%02x", *DataAddr);
+
+    ++DataAddr;
+    ++LoadAddr;
+    --BytesRemaining;
+  }
+
+  dbgs() << "\n";
+}
+
 // Resolve the relocations for all symbols we currently know about.
 void RuntimeDyldImpl::resolveRelocations() {
   MutexGuard locked(lock);
@@ -56,7 +85,8 @@ void RuntimeDyldImpl::resolveRelocations
     // entry provides the section to which the relocation will be applied.
     uint64_t Addr = Sections[i].LoadAddress;
     DEBUG(dbgs() << "Resolving relocations Section #" << i << "\t"
-                 << format("%p", (uint8_t *)Addr) << "\n");
+                 << format("0x%x", Addr) << "\n");
+    DEBUG(dumpSectionMemory(Sections[i]));
     resolveRelocationList(Relocations[i], Addr);
     Relocations.erase(i);
   }
@@ -371,7 +401,7 @@ void RuntimeDyldImpl::emitCommonSymbols(
   if (!Addr)
     report_fatal_error("Unable to allocate memory for common symbols!");
   uint64_t Offset = 0;
-  Sections.push_back(SectionEntry(StringRef(), Addr, TotalSize, 0));
+  Sections.push_back(SectionEntry("<common symbols>", Addr, TotalSize, 0));
   memset(Addr, 0, TotalSize);
 
   DEBUG(dbgs() << "emitCommonSection SectionID: " << SectionID << " new addr: "

Modified: llvm/trunk/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.cpp?rev=216400&r1=216399&r2=216400&view=diff
==============================================================================
--- llvm/trunk/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.cpp (original)
+++ llvm/trunk/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.cpp Mon Aug 25 13:37:38 2014
@@ -104,8 +104,8 @@ void RuntimeDyldMachO::dumpRelocationToR
 
   dbgs() << "resolveRelocation Section: " << RE.SectionID
          << " LocalAddress: " << format("%p", LocalAddress)
-         << " FinalAddress: " << format("%p", FinalAddress)
-         << " Value: " << format("%p", Value) << " Addend: " << RE.Addend
+         << " FinalAddress: " << format("0x%x", FinalAddress)
+         << " Value: " << format("0x%x", Value) << " Addend: " << RE.Addend
          << " isPCRel: " << RE.IsPCRel << " MachoType: " << RE.RelType
          << " Size: " << (1 << RE.Size) << "\n";
 }