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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
class CrashInfo;
#if defined(__arm__)
#define user_regs_struct user_regs
#define user_fpregs_struct user_fpregs
#endif
#if defined(__aarch64__)
#define user_fpregs_struct user_fpsimd_struct
#endif
#if defined(__arm__) && defined(__VFP_FP__) && !defined(__SOFTFP__)
struct user_vfpregs_struct
{
unsigned long long fpregs[32];
unsigned long fpscr;
} __attribute__((__packed__));
#endif
class ThreadInfo
{
private:
pid_t m_tid; // thread id
pid_t m_ppid; // parent process
pid_t m_tgid; // thread group
struct user_regs_struct m_gpRegisters; // general purpose registers
struct user_fpregs_struct m_fpRegisters; // floating point registers
#if defined(__i386__)
struct user_fpxregs_struct m_fpxRegisters; // x86 floating point registers
#elif defined(__arm__) && defined(__VFP_FP__) && !defined(__SOFTFP__)
struct user_vfpregs_struct m_vfpRegisters; // ARM VFP/NEON registers
#endif
public:
ThreadInfo(pid_t tid);
~ThreadInfo();
bool Initialize(ICLRDataTarget* pDataTarget);
void ResumeThread();
bool UnwindThread(CrashInfo& crashInfo, IXCLRDataProcess* pClrDataProcess);
void GetThreadStack(CrashInfo& crashInfo);
void GetThreadContext(uint32_t flags, CONTEXT* context) const;
void SetRegisters(elf_prstatus *prstatus);
inline pid_t Tid() const { return m_tid; }
inline pid_t Ppid() const { return m_ppid; }
inline pid_t Tgid() const { return m_tgid; }
inline const user_regs_struct* GPRegisters() const { return &m_gpRegisters; }
inline const user_fpregs_struct* FPRegisters() const { return &m_fpRegisters; }
#if defined(__i386__)
inline const user_fpxregs_struct* FPXRegisters() const { return &m_fpxRegisters; }
#elif defined(__arm__) && defined(__VFP_FP__) && !defined(__SOFTFP__)
inline const user_vfpregs_struct* VFPRegisters() const { return &m_vfpRegisters; }
#endif
private:
void UnwindNativeFrames(CrashInfo& crashInfo, CONTEXT* pContext);
bool GetRegistersWithPTrace();
bool GetRegistersWithDataTarget(ICLRDataTarget* dataTarget);
};
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