Layer the memory manager between the JIT and the runtime Dyld.

The JITMemory manager references LLVM IR constructs directly, while the
runtime Dyld works at a lower level and can handle objects which may not
originate from LLVM IR. Introduce a new layer for the memory manager to
handle the interface between them. For the MCJIT, this layer will be almost
entirely simply a call-through w/ translation between the IR objects and
symbol names.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128851 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 9 insertions, 5 deletions

diff --git a/lib/ExecutionEngine/MCJIT/MCJIT.cpp b/lib/ExecutionEngine/MCJIT/MCJIT.cpp
index 2e3c931..148e0d9 100644
--- a/lib/ExecutionEngine/MCJIT/MCJIT.cpp
+++ b/lib/ExecutionEngine/MCJIT/MCJIT.cpp
@@ -8,6 +8,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "MCJIT.h"
+#include "MCJITMemoryManager.h"
 #include "llvm/DerivedTypes.h"
 #include "llvm/Function.h"
 #include "llvm/ExecutionEngine/GenericValue.h"
@@ -57,7 +58,8 @@ ExecutionEngine *MCJIT::createJIT(Module *M,
 
   // If the target supports JIT code generation, create the JIT.
   if (TargetJITInfo *TJ = TM->getJITInfo())
-    return new MCJIT(M, TM, *TJ, JMM, OptLevel, GVsWithCode);
+    return new MCJIT(M, TM, *TJ, new MCJITMemoryManager(JMM), OptLevel,
+                     GVsWithCode);
 
   if (ErrorStr)
     *ErrorStr = "target does not support JIT code generation";
@@ -65,9 +67,9 @@ ExecutionEngine *MCJIT::createJIT(Module *M,
 }
 
 MCJIT::MCJIT(Module *m, TargetMachine *tm, TargetJITInfo &tji,
-             JITMemoryManager *JMM, CodeGenOpt::Level OptLevel,
+             RTDyldMemoryManager *MM, CodeGenOpt::Level OptLevel,
              bool AllocateGVsWithCode)
-  : ExecutionEngine(m), TM(tm), M(m), OS(Buffer), Dyld(JMM) {
+  : ExecutionEngine(m), TM(tm), MemMgr(MM), M(m), OS(Buffer), Dyld(MM) {
 
   PM.add(new TargetData(*TM->getTargetData()));
 
@@ -94,6 +96,7 @@ MCJIT::MCJIT(Module *m, TargetMachine *tm, TargetJITInfo &tji,
 }
 
 MCJIT::~MCJIT() {
+  delete MemMgr;
 }
 
 void *MCJIT::getPointerToBasicBlock(BasicBlock *BB) {
@@ -110,7 +113,7 @@ void *MCJIT::getPointerToFunction(Function *F) {
   }
 
   Twine Name = TM->getMCAsmInfo()->getGlobalPrefix() + F->getName();
-  return Dyld.getSymbolAddress(Name.str());
+  return (void*)Dyld.getSymbolAddress(Name.str());
 }
 
 void *MCJIT::recompileAndRelinkFunction(Function *F) {
diff --git a/lib/ExecutionEngine/MCJIT/MCJIT.h b/lib/ExecutionEngine/MCJIT/MCJIT.h
index 915ca0e..1b50766 100644
--- a/lib/ExecutionEngine/MCJIT/MCJIT.h
+++ b/lib/ExecutionEngine/MCJIT/MCJIT.h
@@ -24,11 +24,12 @@ namespace llvm {
 
 class MCJIT : public ExecutionEngine {
   MCJIT(Module *M, TargetMachine *tm, TargetJITInfo &tji,
-        JITMemoryManager *JMM, CodeGenOpt::Level OptLevel,
+        RTDyldMemoryManager *MemMgr, CodeGenOpt::Level OptLevel,
         bool AllocateGVsWithCode);
 
   TargetMachine *TM;
   MCContext *Ctx;
+  RTDyldMemoryManager *MemMgr;
 
   // FIXME: These may need moved to a separate 'jitstate' member like the
   // non-MC JIT does for multithreading and such. Just keep them here for now.