1 //===---------------- OrcError.cpp - Error codes for ORC ------------------===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // Error codes for ORC.
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #include "llvm/ExecutionEngine/Orc/OrcError.h"
15 #include "llvm/Support/ErrorHandling.h"
16 #include "llvm/Support/ManagedStatic.h"
17 
18 using namespace llvm;
19 using namespace llvm::orc;
20 
21 namespace {
22 
23 // FIXME: This class is only here to support the transition to llvm::Error. It
24 // will be removed once this transition is complete. Clients should prefer to
25 // deal with the Error value directly, rather than converting to error_code.
26 class OrcErrorCategory : public std::error_category {
27 public:
28   const char *name() const noexcept override { return "orc"; }
29 
30   std::string message(int condition) const override {
31     switch (static_cast<OrcErrorCode>(condition)) {
32     case OrcErrorCode::RemoteAllocatorDoesNotExist:
33       return "Remote allocator does not exist";
34     case OrcErrorCode::RemoteAllocatorIdAlreadyInUse:
35       return "Remote allocator Id already in use";
36     case OrcErrorCode::RemoteMProtectAddrUnrecognized:
37       return "Remote mprotect call references unallocated memory";
38     case OrcErrorCode::RemoteIndirectStubsOwnerDoesNotExist:
39       return "Remote indirect stubs owner does not exist";
40     case OrcErrorCode::RemoteIndirectStubsOwnerIdAlreadyInUse:
41       return "Remote indirect stubs owner Id already in use";
42     case OrcErrorCode::RPCConnectionClosed:
43       return "RPC connection closed";
44     case OrcErrorCode::RPCCouldNotNegotiateFunction:
45       return "Could not negotiate RPC function";
46     case OrcErrorCode::RPCResponseAbandoned:
47       return "RPC response abandoned";
48     case OrcErrorCode::JITSymbolNotFound:
49       return "JIT symbol not found";
50     case OrcErrorCode::UnexpectedRPCCall:
51       return "Unexpected RPC call";
52     case OrcErrorCode::UnexpectedRPCResponse:
53       return "Unexpected RPC response";
54     case OrcErrorCode::UnknownErrorCodeFromRemote:
55       return "Unknown error returned from remote RPC function "
56              "(Use StringError to get error message)";
57     case OrcErrorCode::UnknownResourceHandle:
58       return "Unknown resource handle";
59     }
60     llvm_unreachable("Unhandled error code");
61   }
62 };
63 
64 static ManagedStatic<OrcErrorCategory> OrcErrCat;
65 }
66 
67 namespace llvm {
68 namespace orc {
69 
70 char JITSymbolNotFound::ID = 0;
71 
72 std::error_code orcError(OrcErrorCode ErrCode) {
73   typedef std::underlying_type<OrcErrorCode>::type UT;
74   return std::error_code(static_cast<UT>(ErrCode), *OrcErrCat);
75 }
76 
77 JITSymbolNotFound::JITSymbolNotFound(std::string SymbolName)
78   : SymbolName(std::move(SymbolName)) {}
79 
80 std::error_code JITSymbolNotFound::convertToErrorCode() const {
81   typedef std::underlying_type<OrcErrorCode>::type UT;
82   return std::error_code(static_cast<UT>(OrcErrorCode::JITSymbolNotFound),
83                          *OrcErrCat);
84 }
85 
86 void JITSymbolNotFound::log(raw_ostream &OS) const {
87   OS << "Could not find symbol '" << SymbolName << "'";
88 }
89 
90 const std::string &JITSymbolNotFound::getSymbolName() const {
91   return SymbolName;
92 }
93 
94 }
95 }
96