aboutsummaryrefslogtreecommitdiffstats
path: root/contrib/libs/llvm12/include/llvm/ExecutionEngine/Orc/TPCEHFrameRegistrar.h
blob: 9f9eb8420b30df794e6d52220c1ec32c68a6fe24 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
#pragma once 
 
#ifdef __GNUC__ 
#pragma GCC diagnostic push 
#pragma GCC diagnostic ignored "-Wunused-parameter" 
#endif 
 
//===-- TPCEHFrameRegistrar.h - TPC based eh-frame registration -*- C++ -*-===// 
// 
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 
// See https://llvm.org/LICENSE.txt for license information. 
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 
// 
//===----------------------------------------------------------------------===// 
// 
// TargetProcessControl based eh-frame registration. 
// 
//===----------------------------------------------------------------------===// 
 
#ifndef LLVM_EXECUTIONENGINE_ORC_TPCEHFRAMEREGISTRAR_H 
#define LLVM_EXECUTIONENGINE_ORC_TPCEHFRAMEREGISTRAR_H 
 
#include "llvm/ExecutionEngine/JITLink/EHFrameSupport.h" 
#include "llvm/ExecutionEngine/Orc/TargetProcessControl.h" 
 
namespace llvm { 
namespace orc { 
 
/// Register/Deregisters EH frames in a remote process via a 
/// TargetProcessControl instance. 
class TPCEHFrameRegistrar : public jitlink::EHFrameRegistrar { 
public: 
  /// Create from a TargetProcessControl instance alone. This will use 
  /// the TPC's lookupSymbols method to find the registration/deregistration 
  /// funciton addresses by name. 
  static Expected<std::unique_ptr<TPCEHFrameRegistrar>> 
  Create(TargetProcessControl &TPC); 
 
  /// Create a TPCEHFrameRegistrar with the given TargetProcessControl 
  /// object and registration/deregistration function addresses. 
  TPCEHFrameRegistrar(TargetProcessControl &TPC, 
                      JITTargetAddress RegisterEHFrameWrapperFnAddr, 
                      JITTargetAddress DeregisterEHFRameWrapperFnAddr) 
      : TPC(TPC), RegisterEHFrameWrapperFnAddr(RegisterEHFrameWrapperFnAddr), 
        DeregisterEHFrameWrapperFnAddr(DeregisterEHFRameWrapperFnAddr) {} 
 
  Error registerEHFrames(JITTargetAddress EHFrameSectionAddr, 
                         size_t EHFrameSectionSize) override; 
  Error deregisterEHFrames(JITTargetAddress EHFrameSectionAddr, 
                           size_t EHFrameSectionSize) override; 
 
private: 
  TargetProcessControl &TPC; 
  JITTargetAddress RegisterEHFrameWrapperFnAddr; 
  JITTargetAddress DeregisterEHFrameWrapperFnAddr; 
}; 
 
} // end namespace orc 
} // end namespace llvm 
 
#endif // LLVM_EXECUTIONENGINE_ORC_TPCEHFRAMEREGISTRAR_H 
 
#ifdef __GNUC__ 
#pragma GCC diagnostic pop 
#endif