1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
|
//===-- NativeRegisterContextLinux_ppc64le.h --------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// This implementation is related to the OpenPOWER ABI for Power Architecture
// 64-bit ELF V2 ABI
#if defined(__powerpc64__)
#ifndef lldb_NativeRegisterContextLinux_ppc64le_h
#define lldb_NativeRegisterContextLinux_ppc64le_h
#include "Plugins/Process/Linux/NativeRegisterContextLinux.h"
#include "Plugins/Process/Utility/lldb-ppc64le-register-enums.h"
#define DECLARE_REGISTER_INFOS_PPC64LE_STRUCT
#include "Plugins/Process/Utility/RegisterInfos_ppc64le.h"
#undef DECLARE_REGISTER_INFOS_PPC64LE_STRUCT
namespace lldb_private {
namespace process_linux {
class NativeProcessLinux;
class NativeRegisterContextLinux_ppc64le : public NativeRegisterContextLinux {
public:
NativeRegisterContextLinux_ppc64le(const ArchSpec &target_arch,
NativeThreadProtocol &native_thread);
uint32_t GetRegisterSetCount() const override;
uint32_t GetUserRegisterCount() const override;
const RegisterSet *GetRegisterSet(uint32_t set_index) 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;
//------------------------------------------------------------------
// Hardware watchpoint management functions
//------------------------------------------------------------------
uint32_t NumSupportedHardwareWatchpoints() override;
uint32_t SetHardwareWatchpoint(lldb::addr_t addr, size_t size,
uint32_t watch_flags) override;
bool ClearHardwareWatchpoint(uint32_t hw_index) override;
Status GetWatchpointHitIndex(uint32_t &wp_index,
lldb::addr_t trap_addr) override;
lldb::addr_t GetWatchpointHitAddress(uint32_t wp_index) override;
lldb::addr_t GetWatchpointAddress(uint32_t wp_index) override;
uint32_t GetWatchpointSize(uint32_t wp_index);
bool WatchpointIsEnabled(uint32_t wp_index);
protected:
Status DoReadGPR(void *buf, size_t buf_size) override;
Status DoWriteGPR(void *buf, size_t buf_size) override;
Status DoReadFPR(void *buf, size_t buf_size) override;
Status DoWriteFPR(void *buf, size_t buf_size) override;
bool IsVMX(unsigned reg);
bool IsVSX(unsigned reg);
Status ReadVMX();
Status WriteVMX();
Status ReadVSX();
Status WriteVSX();
void *GetGPRBuffer() override { return &m_gpr_ppc64le; }
void *GetFPRBuffer() override { return &m_fpr_ppc64le; }
size_t GetFPRSize() override { return sizeof(m_fpr_ppc64le); }
private:
GPR m_gpr_ppc64le; // 64-bit general purpose registers.
FPR m_fpr_ppc64le; // floating-point registers including extended register.
VMX m_vmx_ppc64le; // VMX registers.
VSX m_vsx_ppc64le; // Last lower bytes from first VSX registers.
bool IsGPR(unsigned reg) const;
bool IsFPR(unsigned reg) const;
bool IsVMX(unsigned reg) const;
bool IsVSX(unsigned reg) const;
uint32_t CalculateFprOffset(const RegisterInfo *reg_info) const;
uint32_t CalculateVmxOffset(const RegisterInfo *reg_info) const;
uint32_t CalculateVsxOffset(const RegisterInfo *reg_info) const;
Status ReadHardwareDebugInfo();
Status WriteHardwareDebugRegs();
// Debug register info for hardware watchpoints management.
struct DREG {
lldb::addr_t address; // Breakpoint/watchpoint address value.
lldb::addr_t hit_addr; // Address at which last watchpoint trigger
// exception occurred.
lldb::addr_t real_addr; // Address value that should cause target to stop.
uint32_t control; // Breakpoint/watchpoint control value.
uint32_t refcount; // Serves as enable/disable and reference counter.
long slot; // Saves the value returned from PTRACE_SETHWDEBUG.
int mode; // Defines if watchpoint is read/write/access.
};
std::array<DREG, 4> m_hwp_regs;
// 16 is just a maximum value, query hardware for actual watchpoint count
uint32_t m_max_hwp_supported = 16;
uint32_t m_max_hbp_supported = 16;
bool m_refresh_hwdebug_info = true;
};
} // namespace process_linux
} // namespace lldb_private
#endif // #ifndef lldb_NativeRegisterContextLinux_ppc64le_h
#endif // defined(__powerpc64__)
|
