1 //===----- x86_64.cpp - Generic JITLink x86-64 edge kinds, utilities ------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // Generic utilities for graphs representing x86-64 objects.
10 //
11 //===----------------------------------------------------------------------===//
12 
13 #include "llvm/ExecutionEngine/JITLink/x86_64.h"
14 
15 #define DEBUG_TYPE "jitlink"
16 
17 namespace llvm {
18 namespace jitlink {
19 namespace x86_64 {
20 
21 const char *getEdgeKindName(Edge::Kind K) {
22   switch (K) {
23   case Pointer64:
24     return "Pointer64";
25   case Pointer32:
26     return "Pointer32";
27   case Delta64:
28     return "Delta64";
29   case Delta32:
30     return "Delta32";
31   case NegDelta64:
32     return "NegDelta64";
33   case NegDelta32:
34     return "NegDelta32";
35   case Delta64FromGOT:
36     return "Delta64FromGOT";
37   case BranchPCRel32:
38     return "BranchPCRel32";
39   case BranchPCRel32ToPtrJumpStub:
40     return "BranchPCRel32ToPtrJumpStub";
41   case BranchPCRel32ToPtrJumpStubBypassable:
42     return "BranchPCRel32ToPtrJumpStubBypassable";
43   case RequestGOTAndTransformToDelta32:
44     return "RequestGOTAndTransformToDelta32";
45   case RequestGOTAndTransformToDelta64:
46     return "RequestGOTAndTransformToDelta64";
47   case RequestGOTAndTransformToDelta64FromGOT:
48     return "RequestGOTAndTransformToDelta64FromGOT";
49   case PCRel32GOTLoadREXRelaxable:
50     return "PCRel32GOTLoadREXRelaxable";
51   case RequestGOTAndTransformToPCRel32GOTLoadREXRelaxable:
52     return "RequestGOTAndTransformToPCRel32GOTLoadREXRelaxable";
53   case PCRel32TLVPLoadREXRelaxable:
54     return "PCRel32TLVPLoadREXRelaxable";
55   case RequestTLVPAndTransformToPCRel32TLVPLoadREXRelaxable:
56     return "RequestTLVPAndTransformToPCRel32TLVPLoadREXRelaxable";
57   default:
58     return getGenericEdgeKindName(static_cast<Edge::Kind>(K));
59   }
60 }
61 
62 const char NullPointerContent[PointerSize] = {0x00, 0x00, 0x00, 0x00,
63                                               0x00, 0x00, 0x00, 0x00};
64 
65 const char PointerJumpStubContent[6] = {
66     static_cast<char>(0xFFu), 0x25, 0x00, 0x00, 0x00, 0x00};
67 
68 } // end namespace x86_64
69 } // end namespace jitlink
70 } // end namespace llvm
71