LLDB mainline
RegisterContextFreeBSDKernel_i386.cpp
Go to the documentation of this file.
1//===-- RegisterContextFreeBSDKernel_i386.cpp -----------------------------===//
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
10
11#include "lldb/Target/Process.h"
12#include "lldb/Target/Thread.h"
14#include "llvm/Support/Endian.h"
15
16using namespace lldb;
17using namespace lldb_private;
18
20 Thread &thread, RegisterInfoInterface *register_info, lldb::addr_t pcb_addr)
21 : RegisterContextPOSIX_x86(thread, 0, register_info), m_pcb_addr(pcb_addr) {
22}
23
25
27
29 assert(0);
30 return false;
31}
32
34 assert(0);
35 return false;
36}
37
39 const RegisterInfo *reg_info, RegisterValue &value) {
41 return false;
42
43 struct {
44 llvm::support::ulittle32_t edi;
45 llvm::support::ulittle32_t esi;
46 llvm::support::ulittle32_t ebp;
47 llvm::support::ulittle32_t esp;
48 llvm::support::ulittle32_t ebx;
49 llvm::support::ulittle32_t eip;
50 } pcb;
51
53 size_t rd =
54 m_thread.GetProcess()->ReadMemory(m_pcb_addr, &pcb, sizeof(pcb), error);
55 if (rd != sizeof(pcb))
56 return false;
57
58 uint32_t reg = reg_info->kinds[lldb::eRegisterKindLLDB];
59 switch (reg) {
60#define REG(x) \
61 case lldb_##x##_i386: \
62 value = pcb.x; \
63 break;
64
65 REG(edi);
66 REG(esi);
67 REG(ebp);
68 REG(esp);
69 REG(eip);
70
71#undef REG
72
73 default:
74 return false;
75 }
76
77 return true;
78}
79
81 const RegisterInfo *reg_info, const RegisterValue &value) {
82 return false;
83}
static llvm::raw_ostream & error(Stream &strm)
#define REG(x)
bool WriteRegister(const lldb_private::RegisterInfo *reg_info, const lldb_private::RegisterValue &value) override
RegisterContextFreeBSDKernel_i386(lldb_private::Thread &thread, lldb_private::RegisterInfoInterface *register_info, lldb::addr_t pcb_addr)
bool ReadRegister(const lldb_private::RegisterInfo *reg_info, lldb_private::RegisterValue &value) override
RegisterInfo interface to patch RegisterInfo structure for archs.
An error handling class.
Definition: Status.h:44
lldb::ProcessSP GetProcess() const
Definition: Thread.h:153
#define LLDB_INVALID_ADDRESS
Definition: lldb-defines.h:74
A class that represents a running process on the host machine.
Definition: SBAddress.h:15
uint64_t addr_t
Definition: lldb-types.h:83
@ eRegisterKindLLDB
lldb's internal register numbers