//===----------------------------------------------------------------------===//
#include "llvm/Config/config.h"
-#include "llvm/ExecutionEngine/JITEventListener.h"
-
-#define DEBUG_TYPE "amplifier-jit-event-listener"
-#include "llvm/DebugInfo.h"
-#include "llvm/Function.h"
-#include "llvm/Metadata.h"
+#include "IntelJITEventsWrapper.h"
#include "llvm/ADT/DenseMap.h"
-#include "llvm/ADT/OwningPtr.h"
#include "llvm/CodeGen/MachineFunction.h"
+#include "llvm/DebugInfo/DIContext.h"
+#include "llvm/DebugInfo/DWARF/DWARFContext.h"
+#include "llvm/ExecutionEngine/JITEventListener.h"
+#include "llvm/IR/DebugInfo.h"
+#include "llvm/IR/Function.h"
+#include "llvm/IR/Metadata.h"
+#include "llvm/IR/ValueHandle.h"
+#include "llvm/Object/ObjectFile.h"
+#include "llvm/Object/SymbolSize.h"
#include "llvm/Support/Debug.h"
-#include "llvm/Support/raw_ostream.h"
#include "llvm/Support/Errno.h"
-#include "llvm/Support/ValueHandle.h"
-#include "EventListenerCommon.h"
-#include "IntelJITEventsWrapper.h"
+#include "llvm/Support/raw_ostream.h"
using namespace llvm;
-using namespace llvm::jitprofiling;
+using namespace llvm::object;
+
+#define DEBUG_TYPE "amplifier-jit-event-listener"
namespace {
class IntelJITEventListener : public JITEventListener {
typedef DenseMap<void*, unsigned int> MethodIDMap;
- OwningPtr<IntelJITEventsWrapper> Wrapper;
+ std::unique_ptr<IntelJITEventsWrapper> Wrapper;
MethodIDMap MethodIDs;
- FilenameCache Filenames;
+
+ typedef SmallVector<const void *, 64> MethodAddressVector;
+ typedef DenseMap<const void *, MethodAddressVector> ObjectMap;
+
+ ObjectMap LoadedObjectMap;
+ std::map<const char*, OwningBinary<ObjectFile>> DebugObjects;
public:
IntelJITEventListener(IntelJITEventsWrapper* libraryWrapper) {
~IntelJITEventListener() {
}
- virtual void NotifyFunctionEmitted(const Function &F,
- void *FnStart, size_t FnSize,
- const EmittedFunctionDetails &Details);
+ void NotifyObjectEmitted(const ObjectFile &Obj,
+ const RuntimeDyld::LoadedObjectInfo &L) override;
- virtual void NotifyFreeingMachineCode(void *OldPtr);
-
- virtual void NotifyObjectEmitted(const ObjectImage &Obj);
-
- virtual void NotifyFreeingObject(const ObjectImage &Obj);
+ void NotifyFreeingObject(const ObjectFile &Obj) override;
};
-static LineNumberInfo LineStartToIntelJITFormat(
- uintptr_t StartAddress,
- uintptr_t Address,
- DebugLoc Loc) {
+static LineNumberInfo DILineInfoToIntelJITFormat(uintptr_t StartAddress,
+ uintptr_t Address,
+ DILineInfo Line) {
LineNumberInfo Result;
Result.Offset = Address - StartAddress;
- Result.LineNumber = Loc.getLine();
+ Result.LineNumber = Line.Line;
return Result;
}
return Result;
}
-// Adds the just-emitted function to the symbol table.
-void IntelJITEventListener::NotifyFunctionEmitted(
- const Function &F, void *FnStart, size_t FnSize,
- const EmittedFunctionDetails &Details) {
- iJIT_Method_Load FunctionMessage = FunctionDescToIntelJITFormat(*Wrapper,
- F.getName().data(),
- reinterpret_cast<uint64_t>(FnStart),
- FnSize);
-
- std::vector<LineNumberInfo> LineInfo;
-
- if (!Details.LineStarts.empty()) {
- // Now convert the line number information from the address/DebugLoc
- // format in Details to the offset/lineno in Intel JIT API format.
-
- LineInfo.reserve(Details.LineStarts.size() + 1);
-
- DebugLoc FirstLoc = Details.LineStarts[0].Loc;
- assert(!FirstLoc.isUnknown()
- && "LineStarts should not contain unknown DebugLocs");
-
- MDNode *FirstLocScope = FirstLoc.getScope(F.getContext());
- DISubprogram FunctionDI = getDISubprogram(FirstLocScope);
- if (FunctionDI.Verify()) {
- FunctionMessage.source_file_name = const_cast<char*>(
- Filenames.getFullPath(FirstLocScope));
-
- LineNumberInfo FirstLine;
- FirstLine.Offset = 0;
- FirstLine.LineNumber = FunctionDI.getLineNumber();
- LineInfo.push_back(FirstLine);
- }
-
- for (std::vector<EmittedFunctionDetails::LineStart>::const_iterator I =
- Details.LineStarts.begin(), E = Details.LineStarts.end();
- I != E; ++I) {
- // This implementation ignores the DebugLoc filename because the Intel
- // JIT API does not support multiple source files associated with a single
- // JIT function
- LineInfo.push_back(LineStartToIntelJITFormat(
- reinterpret_cast<uintptr_t>(FnStart),
- I->Address,
- I->Loc));
-
- // If we have no file name yet for the function, use the filename from
- // the first instruction that has one
- if (FunctionMessage.source_file_name == 0) {
- MDNode *scope = I->Loc.getScope(
- Details.MF->getFunction()->getContext());
- FunctionMessage.source_file_name = const_cast<char*>(
- Filenames.getFullPath(scope));
+void IntelJITEventListener::NotifyObjectEmitted(
+ const ObjectFile &Obj,
+ const RuntimeDyld::LoadedObjectInfo &L) {
+
+ OwningBinary<ObjectFile> DebugObjOwner = L.getObjectForDebug(Obj);
+ const ObjectFile &DebugObj = *DebugObjOwner.getBinary();
+
+ // Get the address of the object image for use as a unique identifier
+ const void* ObjData = DebugObj.getData().data();
+ DIContext* Context = new DWARFContextInMemory(DebugObj);
+ MethodAddressVector Functions;
+
+ // Use symbol info to iterate functions in the object.
+ for (const std::pair<SymbolRef, uint64_t> &P : computeSymbolSizes(DebugObj)) {
+ SymbolRef Sym = P.first;
+ std::vector<LineNumberInfo> LineInfo;
+ std::string SourceFileName;
+
+ if (Sym.getType() == SymbolRef::ST_Function) {
+ ErrorOr<StringRef> Name = Sym.getName();
+ if (!Name)
+ continue;
+
+ ErrorOr<uint64_t> AddrOrErr = Sym.getAddress();
+ if (AddrOrErr.getError())
+ continue;
+ uint64_t Addr = *AddrOrErr;
+ uint64_t Size = P.second;
+
+ // Record this address in a local vector
+ Functions.push_back((void*)Addr);
+
+ // Build the function loaded notification message
+ iJIT_Method_Load FunctionMessage =
+ FunctionDescToIntelJITFormat(*Wrapper, Name->data(), Addr, Size);
+ DILineInfoTable Lines = Context->getLineInfoForAddressRange(Addr, Size);
+ DILineInfoTable::iterator Begin = Lines.begin();
+ DILineInfoTable::iterator End = Lines.end();
+ for (DILineInfoTable::iterator It = Begin; It != End; ++It) {
+ LineInfo.push_back(
+ DILineInfoToIntelJITFormat((uintptr_t)Addr, It->first, It->second));
+ }
+ if (LineInfo.size() == 0) {
+ FunctionMessage.source_file_name = 0;
+ FunctionMessage.line_number_size = 0;
+ FunctionMessage.line_number_table = 0;
+ } else {
+ // Source line information for the address range is provided as
+ // a code offset for the start of the corresponding sub-range and
+ // a source line. JIT API treats offsets in LineNumberInfo structures
+ // as the end of the corresponding code region. The start of the code
+ // is taken from the previous element. Need to shift the elements.
+
+ LineNumberInfo last = LineInfo.back();
+ last.Offset = FunctionMessage.method_size;
+ LineInfo.push_back(last);
+ for (size_t i = LineInfo.size() - 2; i > 0; --i)
+ LineInfo[i].LineNumber = LineInfo[i - 1].LineNumber;
+
+ SourceFileName = Lines.front().second.FileName;
+ FunctionMessage.source_file_name =
+ const_cast<char *>(SourceFileName.c_str());
+ FunctionMessage.line_number_size = LineInfo.size();
+ FunctionMessage.line_number_table = &*LineInfo.begin();
}
- }
- FunctionMessage.line_number_size = LineInfo.size();
- FunctionMessage.line_number_table = &*LineInfo.begin();
- } else {
- FunctionMessage.line_number_size = 0;
- FunctionMessage.line_number_table = 0;
+ Wrapper->iJIT_NotifyEvent(iJVM_EVENT_TYPE_METHOD_LOAD_FINISHED,
+ &FunctionMessage);
+ MethodIDs[(void*)Addr] = FunctionMessage.method_id;
+ }
}
- Wrapper->iJIT_NotifyEvent(iJVM_EVENT_TYPE_METHOD_LOAD_FINISHED,
- &FunctionMessage);
- MethodIDs[FnStart] = FunctionMessage.method_id;
+ // To support object unload notification, we need to keep a list of
+ // registered function addresses for each loaded object. We will
+ // use the MethodIDs map to get the registered ID for each function.
+ LoadedObjectMap[ObjData] = Functions;
+ DebugObjects[Obj.getData().data()] = std::move(DebugObjOwner);
}
-void IntelJITEventListener::NotifyFreeingMachineCode(void *FnStart) {
- MethodIDMap::iterator I = MethodIDs.find(FnStart);
- if (I != MethodIDs.end()) {
- Wrapper->iJIT_NotifyEvent(iJVM_EVENT_TYPE_METHOD_UNLOAD_START, &I->second);
- MethodIDs.erase(I);
+void IntelJITEventListener::NotifyFreeingObject(const ObjectFile &Obj) {
+ // This object may not have been registered with the listener. If it wasn't,
+ // bail out.
+ if (DebugObjects.find(Obj.getData().data()) == DebugObjects.end())
+ return;
+
+ // Get the address of the object image for use as a unique identifier
+ const ObjectFile &DebugObj = *DebugObjects[Obj.getData().data()].getBinary();
+ const void* ObjData = DebugObj.getData().data();
+
+ // Get the object's function list from LoadedObjectMap
+ ObjectMap::iterator OI = LoadedObjectMap.find(ObjData);
+ if (OI == LoadedObjectMap.end())
+ return;
+ MethodAddressVector& Functions = OI->second;
+
+ // Walk the function list, unregistering each function
+ for (MethodAddressVector::iterator FI = Functions.begin(),
+ FE = Functions.end();
+ FI != FE;
+ ++FI) {
+ void* FnStart = const_cast<void*>(*FI);
+ MethodIDMap::iterator MI = MethodIDs.find(FnStart);
+ if (MI != MethodIDs.end()) {
+ Wrapper->iJIT_NotifyEvent(iJVM_EVENT_TYPE_METHOD_UNLOAD_START,
+ &MI->second);
+ MethodIDs.erase(MI);
+ }
}
-}
-
-void IntelJITEventListener::NotifyObjectEmitted(const ObjectImage &Obj) {
-}
-void IntelJITEventListener::NotifyFreeingObject(const ObjectImage &Obj) {
+ // Erase the object from LoadedObjectMap
+ LoadedObjectMap.erase(OI);
+ DebugObjects.erase(Obj.getData().data());
}
} // anonymous namespace.
projects / oota-llvm.git / blobdiff