Store Debug Counter Relocation to the SCC on ARM

Signed-off-by: Irwin D'Souza <[email protected]>
eclipse-openj9 · Jun 28, 2018 · 7efa689 · 7efa689
1 parent c070460
commit 7efa689
Showing 1 changed file with 30 additions and 0 deletions.
diff --git a/runtime/compiler/arm/codegen/J9AheadOfTimeCompile.cpp b/runtime/compiler/arm/codegen/J9AheadOfTimeCompile.cpp
@@ -651,6 +651,35 @@ uint8_t *J9::ARM::AheadOfTimeCompile::initializeAOTRelocationHeader(TR::Iterated
          }
          break;
 
+      case TR_DebugCounter:
+         {
+         TR::DebugCounterBase *counter = (TR::DebugCounterBase *) relocation->getTargetAddress();
+         if (!counter || !counter->getReloData() || !counter->getName())
+            comp->failCompilation<TR::CompilationException>("Failed to generate debug counter relo data");
+
+         TR::DebugCounterReloData *counterReloData = counter->getReloData();
+
+         uintptrj_t offset = (uintptrj_t)fej9->sharedCache()->rememberDebugCounterName(counter->getName());
+
+         uint8_t flags = (uint8_t)counterReloData->_seqKind;
+         TR_ASSERT((flags & RELOCATION_CROSS_PLATFORM_FLAGS_MASK) == 0,  "reloFlags bits overlap cross-platform flags bits\n");
+         *flagsCursor |= (flags & RELOCATION_RELOC_FLAGS_MASK);
+
+         *(uintptrj_t *)cursor = (uintptrj_t)counterReloData->_callerIndex;
+         cursor += SIZEPOINTER;
+         *(uintptrj_t *)cursor = (uintptrj_t)counterReloData->_bytecodeIndex;
+         cursor += SIZEPOINTER;
+         *(uintptrj_t *)cursor = offset;
+         cursor += SIZEPOINTER;
+         *(uintptrj_t *)cursor = (uintptrj_t)counterReloData->_delta;
+         cursor += SIZEPOINTER;
+         *(uintptrj_t *)cursor = (uintptrj_t)counterReloData->_fidelity;
+         cursor += SIZEPOINTER;
+         *(uintptrj_t *)cursor = (uintptrj_t)counterReloData->_staticDelta;
+         cursor += SIZEPOINTER;
+         }
+         break;
+
       }
       return cursor;
    }
@@ -717,6 +746,7 @@ uint32_t J9::ARM::AheadOfTimeCompile::_relocationTargetTypeToHeaderSizeMap[TR_Nu
    0,                                        // TR_NativeMethodAbsolute                = 56,
    0,                                        // TR_NativeMethodRelative                = 57,
    16,                                       // TR_ArbitraryClassAddress               = 58,
+   28                                        // TR_DebugCounter                        = 59
    };