1 //===-- ThreadElfCore.h -----------------------------------------*- C++ -*-===//
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
7 //===----------------------------------------------------------------------===//
9 #ifndef liblldb_ThreadElfCore_h_
10 #define liblldb_ThreadElfCore_h_
12 #include "Plugins/Process/elf-core/RegisterUtilities.h"
13 #include "lldb/Target/Thread.h"
14 #include "lldb/Utility/DataExtractor.h"
15 #include "llvm/ADT/DenseMap.h"
18 struct compat_timeval {
19 alignas(8) uint64_t tv_sec;
20 alignas(8) uint64_t tv_usec;
23 // PRSTATUS structure's size differs based on architecture.
24 // This is the layout in the x86-64 arch.
25 // In the i386 case we parse it manually and fill it again
26 // in the same structure
27 // The gp registers are also a part of this struct, but they are handled
34 struct ELFLinuxPrStatus {
41 alignas(8) uint64_t pr_sigpend;
42 alignas(8) uint64_t pr_sighold;
49 compat_timeval pr_utime;
50 compat_timeval pr_stime;
51 compat_timeval pr_cutime;
52 compat_timeval pr_cstime;
56 lldb_private::Status Parse(const lldb_private::DataExtractor &data,
57 const lldb_private::ArchSpec &arch);
59 // Return the bytesize of the structure
60 // 64 bit - just sizeof
61 // 32 bit - hardcoded because we are reusing the struct, but some of the
62 // members are smaller -
63 // so the layout is not the same
64 static size_t GetSize(const lldb_private::ArchSpec &arch);
67 static_assert(sizeof(ELFLinuxPrStatus) == 112,
68 "sizeof ELFLinuxPrStatus is not correct!");
70 struct ELFLinuxSigInfo {
77 lldb_private::Status Parse(const lldb_private::DataExtractor &data,
78 const lldb_private::ArchSpec &arch);
80 // Return the bytesize of the structure
81 // 64 bit - just sizeof
82 // 32 bit - hardcoded because we are reusing the struct, but some of the
83 // members are smaller -
84 // so the layout is not the same
85 static size_t GetSize(const lldb_private::ArchSpec &arch);
88 static_assert(sizeof(ELFLinuxSigInfo) == 12,
89 "sizeof ELFLinuxSigInfo is not correct!");
91 // PRPSINFO structure's size differs based on architecture.
92 // This is the layout in the x86-64 arch case.
93 // In the i386 case we parse it manually and fill it again
94 // in the same structure
95 struct ELFLinuxPrPsInfo {
100 alignas(8) uint64_t pr_flag;
112 lldb_private::Status Parse(const lldb_private::DataExtractor &data,
113 const lldb_private::ArchSpec &arch);
115 // Return the bytesize of the structure
116 // 64 bit - just sizeof
117 // 32 bit - hardcoded because we are reusing the struct, but some of the
118 // members are smaller -
119 // so the layout is not the same
120 static size_t GetSize(const lldb_private::ArchSpec &arch);
123 static_assert(sizeof(ELFLinuxPrPsInfo) == 136,
124 "sizeof ELFLinuxPrPsInfo is not correct!");
127 lldb_private::DataExtractor gpregset;
128 std::vector<lldb_private::CoreNote> notes;
131 int prstatus_sig = 0;
135 class ThreadElfCore : public lldb_private::Thread {
137 ThreadElfCore(lldb_private::Process &process, const ThreadData &td);
139 ~ThreadElfCore() override;
141 void RefreshStateAfterStop() override;
143 lldb::RegisterContextSP GetRegisterContext() override;
145 lldb::RegisterContextSP
146 CreateRegisterContextForFrame(lldb_private::StackFrame *frame) override;
148 static bool ThreadIDIsValid(lldb::tid_t thread) { return thread != 0; }
150 const char *GetName() override {
151 if (m_thread_name.empty())
153 return m_thread_name.c_str();
156 void SetName(const char *name) override {
158 m_thread_name.assign(name);
160 m_thread_name.clear();
165 std::string m_thread_name;
166 lldb::RegisterContextSP m_thread_reg_ctx_sp;
170 lldb_private::DataExtractor m_gpregset_data;
171 std::vector<lldb_private::CoreNote> m_notes;
173 bool CalculateStopInfo() override;
176 #endif // liblldb_ThreadElfCore_h_