NativeRegisterContextLinux_s390x.h
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//===-- NativeRegisterContextLinux_s390x.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
//
//===----------------------------------------------------------------------===//
#if defined(__s390x__) && defined(__linux__)
#ifndef lldb_NativeRegisterContextLinux_s390x_h
#define lldb_NativeRegisterContextLinux_s390x_h
#include "Plugins/Process/Linux/NativeRegisterContextLinux.h"
#include "Plugins/Process/Utility/RegisterContext_s390x.h"
#include "Plugins/Process/Utility/lldb-s390x-register-enums.h"
#include <asm/ptrace.h>
namespace lldb_private {
namespace process_linux {
class NativeProcessLinux;
class NativeRegisterContextLinux_s390x : public NativeRegisterContextLinux {
public:
NativeRegisterContextLinux_s390x(const ArchSpec &target_arch,
NativeThreadProtocol &native_thread);
uint32_t GetRegisterSetCount() const override;
const RegisterSet *GetRegisterSet(uint32_t set_index) const override;
uint32_t GetUserRegisterCount() const override;
Status ReadRegister(const RegisterInfo *reg_info,
RegisterValue ®_value) override;
Status WriteRegister(const RegisterInfo *reg_info,
const RegisterValue ®_value) override;
Status ReadAllRegisterValues(lldb::DataBufferSP &data_sp) override;
Status WriteAllRegisterValues(const lldb::DataBufferSP &data_sp) override;
Status IsWatchpointHit(uint32_t wp_index, bool &is_hit) override;
Status GetWatchpointHitIndex(uint32_t &wp_index,
lldb::addr_t trap_addr) override;
Status IsWatchpointVacant(uint32_t wp_index, bool &is_vacant) override;
bool ClearHardwareWatchpoint(uint32_t wp_index) override;
Status ClearAllHardwareWatchpoints() override;
uint32_t SetHardwareWatchpoint(lldb::addr_t addr, size_t size,
uint32_t watch_flags) override;
lldb::addr_t GetWatchpointAddress(uint32_t wp_index) override;
uint32_t NumSupportedHardwareWatchpoints() override;
protected:
Status DoReadRegisterValue(uint32_t offset, const char *reg_name,
uint32_t size, RegisterValue &value) override;
Status DoWriteRegisterValue(uint32_t offset, const char *reg_name,
const RegisterValue &value) override;
Status ReadGPR() override;
Status WriteGPR() override;
Status ReadFPR() override;
Status WriteFPR() override;
void *GetGPRBuffer() override { return &m_regs; }
size_t GetGPRSize() override { return sizeof(m_regs); }
void *GetFPRBuffer() override { return &m_fp_regs; }
size_t GetFPRSize() override { return sizeof(m_fp_regs); }
private:
// Info about register ranges.
struct RegInfo {
uint32_t num_registers;
uint32_t num_gpr_registers;
uint32_t num_fpr_registers;
uint32_t last_gpr;
uint32_t first_fpr;
uint32_t last_fpr;
};
// Private member variables.
RegInfo m_reg_info;
lldb::addr_t m_watchpoint_addr;
s390_regs m_regs;
s390_fp_regs m_fp_regs;
// Private member methods.
bool IsRegisterSetAvailable(uint32_t set_index) const;
bool IsGPR(uint32_t reg_index) const;
bool IsFPR(uint32_t reg_index) const;
Status PeekUserArea(uint32_t offset, void *buf, size_t buf_size);
Status PokeUserArea(uint32_t offset, const void *buf, size_t buf_size);
Status DoReadRegisterSet(uint32_t regset, void *buf, size_t buf_size);
Status DoWriteRegisterSet(uint32_t regset, const void *buf, size_t buf_size);
};
} // namespace process_linux
} // namespace lldb_private
#endif // #ifndef lldb_NativeRegisterContextLinux_s390x_h
#endif // defined(__s390x__) && defined(__linux__)