xref: /freebsd/contrib/llvm-project/llvm/lib/ExecutionEngine/JITLink/x86_64.cpp (revision 32a95656b51ebefcdf3e0b02c110825f59abd26f)
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 BranchPCRel32:
36     return "BranchPCRel32";
37   case BranchPCRel32ToPtrJumpStub:
38     return "BranchPCRel32ToPtrJumpStub";
39   case BranchPCRel32ToPtrJumpStubRelaxable:
40     return "BranchPCRel32ToPtrJumpStubRelaxable";
41   case RequestGOTAndTransformToDelta32:
42     return "RequestGOTAndTransformToDelta32";
43   case PCRel32GOTLoadRelaxable:
44     return "PCRel32GOTLoadRelaxable";
45   case RequestGOTAndTransformToPCRel32GOTLoadRelaxable:
46     return "RequestGOTAndTransformToPCRel32GOTLoadRelaxable";
47   case PCRel32TLVPLoadRelaxable:
48     return "PCRel32TLVPLoadRelaxable";
49   case RequestTLVPAndTransformToPCRel32TLVPLoadRelaxable:
50     return "RequestTLVPAndTransformToPCRel32TLVPLoadRelaxable";
51   default:
52     return getGenericEdgeKindName(static_cast<Edge::Kind>(K));
53   }
54 }
55 
56 const char NullPointerContent[PointerSize] = {0x00, 0x00, 0x00, 0x00,
57                                               0x00, 0x00, 0x00, 0x00};
58 
59 const char PointerJumpStubContent[6] = {
60     static_cast<char>(0xFFu), 0x25, 0x00, 0x00, 0x00, 0x00};
61 
62 } // end namespace x86_64
63 } // end namespace jitlink
64 } // end namespace llvm
65