[llvm] r257297 - [Orc] Add error codes and a new std::error_category for remote-jit errors.

[Lang Hames via llvm-commits]

Author: lhames
Date: Sun Jan 10 18:34:13 2016
New Revision: 257297

URL: http://llvm.org/viewvc/llvm-project?rev=257297&view=rev
Log:
[Orc] Add error codes and a new std::error_category for remote-jit errors.

These will be used by an upcoming patch that adds remote-jit support utilities
to ORC.


Added:
    llvm/trunk/include/llvm/ExecutionEngine/Orc/OrcError.h
    llvm/trunk/lib/ExecutionEngine/Orc/OrcError.cpp
Modified:
    llvm/trunk/lib/ExecutionEngine/Orc/CMakeLists.txt

Added: llvm/trunk/include/llvm/ExecutionEngine/Orc/OrcError.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/ExecutionEngine/Orc/OrcError.h?rev=257297&view=auto
==============================================================================
--- llvm/trunk/include/llvm/ExecutionEngine/Orc/OrcError.h (added)
+++ llvm/trunk/include/llvm/ExecutionEngine/Orc/OrcError.h Sun Jan 10 18:34:13 2016
@@ -0,0 +1,37 @@
+//===------ OrcError.h - Reject symbol lookup requests ------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+//   Define an error category, error codes, and helper utilities for Orc.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_EXECUTIONENGINE_ORC_ORCERROR_H
+#define LLVM_EXECUTIONENGINE_ORC_ORCERROR_H
+
+#include <system_error>
+
+namespace llvm {
+namespace orc {
+
+enum class OrcErrorCode : int {
+  // RPC Errors
+  RemoteAllocatorDoesNotExist = 1,
+  RemoteAllocatorIdAlreadyInUse,
+  RemoteMProtectAddrUnrecognized,
+  RemoteIndirectStubsOwnerDoesNotExist,
+  RemoteIndirectStubsOwnerIdAlreadyInUse,
+  UnexpectedRPCCall
+};
+
+std::error_code orcError(OrcErrorCode ErrCode);
+
+} // End namespace orc.
+} // End namespace llvm.
+
+#endif // LLVM_EXECUTIONENGINE_ORC_ORCERROR_H

Modified: llvm/trunk/lib/ExecutionEngine/Orc/CMakeLists.txt
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/ExecutionEngine/Orc/CMakeLists.txt?rev=257297&r1=257296&r2=257297&view=diff
==============================================================================
--- llvm/trunk/lib/ExecutionEngine/Orc/CMakeLists.txt (original)
+++ llvm/trunk/lib/ExecutionEngine/Orc/CMakeLists.txt Sun Jan 10 18:34:13 2016
@@ -4,6 +4,7 @@ add_llvm_library(LLVMOrcJIT
   NullResolver.cpp
   OrcCBindings.cpp
   OrcCBindingsStack.cpp
+  OrcError.cpp
   OrcMCJITReplacement.cpp
   OrcTargetSupport.cpp
 

Added: llvm/trunk/lib/ExecutionEngine/Orc/OrcError.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/ExecutionEngine/Orc/OrcError.cpp?rev=257297&view=auto
==============================================================================
--- llvm/trunk/lib/ExecutionEngine/Orc/OrcError.cpp (added)
+++ llvm/trunk/lib/ExecutionEngine/Orc/OrcError.cpp Sun Jan 10 18:34:13 2016
@@ -0,0 +1,57 @@
+//===---------------- OrcError.cpp - Error codes for ORC ------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// Error codes for ORC.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/ExecutionEngine/Orc/OrcError.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/ManagedStatic.h"
+
+using namespace llvm;
+using namespace llvm::orc;
+
+namespace {
+
+class OrcErrorCategory : public std::error_category {
+public:
+  const char *name() const LLVM_NOEXCEPT override { return "orc"; }
+
+  std::string message(int condition) const override {
+    switch (static_cast<OrcErrorCode>(condition)) {
+    case OrcErrorCode::RemoteAllocatorDoesNotExist:
+      return "Remote allocator does not exist";
+    case OrcErrorCode::RemoteAllocatorIdAlreadyInUse:
+      return "Remote allocator Id already in use";
+    case OrcErrorCode::RemoteMProtectAddrUnrecognized:
+      return "Remote mprotect call references unallocated memory";
+    case OrcErrorCode::RemoteIndirectStubsOwnerDoesNotExist:
+      return "Remote indirect stubs owner does not exist";
+    case OrcErrorCode::RemoteIndirectStubsOwnerIdAlreadyInUse:
+      return "Remote indirect stubs owner Id already in use";
+    case OrcErrorCode::UnexpectedRPCCall:
+      return "Unexpected RPC call";
+    }
+    llvm_unreachable("Unhandled error code");
+  }
+};
+
+static ManagedStatic<OrcErrorCategory> OrcErrCat;
+}
+
+namespace llvm {
+namespace orc {
+
+std::error_code orcError(OrcErrorCode ErrCode) {
+  typedef std::underlying_type<OrcErrorCode>::type UT;
+  return std::error_code(static_cast<UT>(ErrCode), *OrcErrCat);
+}
+}
+}