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usr / src / contrib / llvm-project / lldb / source / Plugins / Process / elf-core /

📁 ..
📄 ProcessElfCore.cpp(32.61 KB)
📄 ProcessElfCore.h(5.56 KB)
📄 RegisterContextPOSIXCore_arm.cpp(2.25 KB)
📄 RegisterContextPOSIXCore_arm.h(1.79 KB)
📄 RegisterContextPOSIXCore_arm64.cpp(2.88 KB)
📄 RegisterContextPOSIXCore_arm64.h(1.85 KB)
📄 RegisterContextPOSIXCore_mips64.cpp(3 KB)
📄 RegisterContextPOSIXCore_mips64.h(1.88 KB)
📄 RegisterContextPOSIXCore_powerpc.cpp(3.59 KB)
📄 RegisterContextPOSIXCore_powerpc.h(1.98 KB)
📄 RegisterContextPOSIXCore_ppc64le.cpp(4.6 KB)
📄 RegisterContextPOSIXCore_ppc64le.h(1.73 KB)
📄 RegisterContextPOSIXCore_s390x.cpp(3.04 KB)
📄 RegisterContextPOSIXCore_s390x.h(1.83 KB)
📄 RegisterContextPOSIXCore_x86_64.cpp(2.92 KB)
📄 RegisterContextPOSIXCore_x86_64.h(1.69 KB)
📄 RegisterUtilities.cpp(1.34 KB)
📄 RegisterUtilities.h(3.94 KB)
📄 ThreadElfCore.cpp(13.69 KB)
📄 ThreadElfCore.h(4.72 KB)

Editing: ThreadElfCore.h

//===-- ThreadElfCore.h -----------------------------------------*- 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
//
//===----------------------------------------------------------------------===//

#ifndef LLDB_SOURCE_PLUGINS_PROCESS_ELF_CORE_THREADELFCORE_H
#define LLDB_SOURCE_PLUGINS_PROCESS_ELF_CORE_THREADELFCORE_H

#include "Plugins/Process/elf-core/RegisterUtilities.h"
#include "lldb/Target/Thread.h"
#include "lldb/Utility/DataExtractor.h"
#include "llvm/ADT/DenseMap.h"
#include <string>

struct compat_timeval {
  alignas(8) uint64_t tv_sec;
  alignas(8) uint64_t tv_usec;
};

// PRSTATUS structure's size differs based on architecture.
// This is the layout in the x86-64 arch.
// In the i386 case we parse it manually and fill it again
// in the same structure
// The gp registers are also a part of this struct, but they are handled
// separately

#undef si_signo
#undef si_code
#undef si_errno

struct ELFLinuxPrStatus {
  int32_t si_signo;
  int32_t si_code;
  int32_t si_errno;

int16_t pr_cursig;

alignas(8) uint64_t pr_sigpend;
  alignas(8) uint64_t pr_sighold;

uint32_t pr_pid;
  uint32_t pr_ppid;
  uint32_t pr_pgrp;
  uint32_t pr_sid;

compat_timeval pr_utime;
  compat_timeval pr_stime;
  compat_timeval pr_cutime;
  compat_timeval pr_cstime;

ELFLinuxPrStatus();

lldb_private::Status Parse(const lldb_private::DataExtractor &data,
                             const lldb_private::ArchSpec &arch);

// Return the bytesize of the structure
  // 64 bit - just sizeof
  // 32 bit - hardcoded because we are reusing the struct, but some of the
  // members are smaller -
  // so the layout is not the same
  static size_t GetSize(const lldb_private::ArchSpec &arch);
};

static_assert(sizeof(ELFLinuxPrStatus) == 112,
              "sizeof ELFLinuxPrStatus is not correct!");

struct ELFLinuxSigInfo {
  int32_t si_signo;
  int32_t si_code;
  int32_t si_errno;

ELFLinuxSigInfo();

lldb_private::Status Parse(const lldb_private::DataExtractor &data,
                             const lldb_private::ArchSpec &arch);

static_assert(sizeof(ELFLinuxSigInfo) == 12,
              "sizeof ELFLinuxSigInfo is not correct!");

// PRPSINFO structure's size differs based on architecture.
// This is the layout in the x86-64 arch case.
// In the i386 case we parse it manually and fill it again
// in the same structure
struct ELFLinuxPrPsInfo {
  char pr_state;
  char pr_sname;
  char pr_zomb;
  char pr_nice;
  alignas(8) uint64_t pr_flag;
  uint32_t pr_uid;
  uint32_t pr_gid;
  int32_t pr_pid;
  int32_t pr_ppid;
  int32_t pr_pgrp;
  int32_t pr_sid;
  char pr_fname[16];
  char pr_psargs[80];

ELFLinuxPrPsInfo();

lldb_private::Status Parse(const lldb_private::DataExtractor &data,
                             const lldb_private::ArchSpec &arch);

static_assert(sizeof(ELFLinuxPrPsInfo) == 136,
              "sizeof ELFLinuxPrPsInfo is not correct!");

struct ThreadData {
  lldb_private::DataExtractor gpregset;
  std::vector<lldb_private::CoreNote> notes;
  lldb::tid_t tid;
  int signo = 0;
  int prstatus_sig = 0;
  std::string name;
};

class ThreadElfCore : public lldb_private::Thread {
public:
  ThreadElfCore(lldb_private::Process &process, const ThreadData &td);

~ThreadElfCore() override;

void RefreshStateAfterStop() override;

lldb::RegisterContextSP GetRegisterContext() override;

lldb::RegisterContextSP
  CreateRegisterContextForFrame(lldb_private::StackFrame *frame) override;

static bool ThreadIDIsValid(lldb::tid_t thread) { return thread != 0; }

const char *GetName() override {
    if (m_thread_name.empty())
      return nullptr;
    return m_thread_name.c_str();
  }

void SetName(const char *name) override {
    if (name && name[0])
      m_thread_name.assign(name);
    else
      m_thread_name.clear();
  }

protected:
  // Member variables.
  std::string m_thread_name;
  lldb::RegisterContextSP m_thread_reg_ctx_sp;

int m_signo;

lldb_private::DataExtractor m_gpregset_data;
  std::vector<lldb_private::CoreNote> m_notes;

bool CalculateStopInfo() override;
};

#endif // LLDB_SOURCE_PLUGINS_PROCESS_ELF_CORE_THREADELFCORE_H

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Editing: ThreadElfCore.h

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