1 //===-- RegisterContextFreeBSD_arm64.cpp ----------------------*- C++ -*-===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===---------------------------------------------------------------------===//
9
10 #include <vector>
11 #include "RegisterContextPOSIX_arm64.h"
12 #include "RegisterContextFreeBSD_arm64.h"
13
14 using namespace lldb;
15
16 // Based on RegisterContextDarwin_arm64.cpp
17 #define GPR_OFFSET(idx) ((idx) * 8)
18 #define GPR_OFFSET_NAME(reg) (LLVM_EXTENSION offsetof (RegisterContextFreeBSD_arm64::GPR, reg))
19
20 #define FPU_OFFSET(idx) ((idx) * 16 + sizeof (RegisterContextFreeBSD_arm64::GPR))
21 #define FPU_OFFSET_NAME(reg) (LLVM_EXTENSION offsetof (RegisterContextFreeBSD_arm64::FPU, reg))
22
23 #define EXC_OFFSET_NAME(reg) (LLVM_EXTENSION offsetof (RegisterContextFreeBSD_arm64::EXC, reg) + sizeof (RegisterContextFreeBSD_arm64::GPR) + sizeof (RegisterContextFreeBSD_arm64::FPU))
24 #define DBG_OFFSET_NAME(reg) (LLVM_EXTENSION offsetof (RegisterContextFreeBSD_arm64::DBG, reg) + sizeof (RegisterContextFreeBSD_arm64::GPR) + sizeof (RegisterContextFreeBSD_arm64::FPU) + sizeof (RegisterContextFreeBSD_arm64::EXC))
25
26 #define DEFINE_DBG(reg, i) #reg, NULL, sizeof(((RegisterContextFreeBSD_arm64::DBG *)NULL)->reg[i]), DBG_OFFSET_NAME(reg[i]), lldb::eEncodingUint, lldb::eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, dbg_##reg##i }, NULL, NULL
27 #define REG_CONTEXT_SIZE (sizeof (RegisterContextFreeBSD_arm64::GPR) + sizeof (RegisterContextFreeBSD_arm64::FPU) + sizeof (RegisterContextFreeBSD_arm64::EXC))
28
29 //-----------------------------------------------------------------------------
30 // Include RegisterInfos_arm64 to declare our g_register_infos_arm64 structure.
31 //-----------------------------------------------------------------------------
32 #define DECLARE_REGISTER_INFOS_ARM64_STRUCT
33 #include "RegisterInfos_arm64.h"
34 #undef DECLARE_REGISTER_INFOS_ARM64_STRUCT
35
36 static const lldb_private::RegisterInfo *
GetRegisterInfoPtr(const lldb_private::ArchSpec & target_arch)37 GetRegisterInfoPtr(const lldb_private::ArchSpec &target_arch)
38 {
39 switch (target_arch.GetMachine())
40 {
41 case llvm::Triple::aarch64:
42 return g_register_infos_arm64;
43 default:
44 assert(false && "Unhandled target architecture.");
45 return nullptr;
46 }
47 }
48
49 static uint32_t
GetRegisterInfoCount(const lldb_private::ArchSpec & target_arch)50 GetRegisterInfoCount(const lldb_private::ArchSpec &target_arch)
51 {
52 switch (target_arch.GetMachine())
53 {
54 case llvm::Triple::aarch64:
55 return static_cast<uint32_t>(sizeof(g_register_infos_arm64) / sizeof(g_register_infos_arm64[0]));
56 default:
57 assert(false && "Unhandled target architecture.");
58 return 0;
59 }
60 }
61
RegisterContextFreeBSD_arm64(const lldb_private::ArchSpec & target_arch)62 RegisterContextFreeBSD_arm64::RegisterContextFreeBSD_arm64(const lldb_private::ArchSpec &target_arch) :
63 RegisterInfoInterface(target_arch),
64 m_register_info_p(GetRegisterInfoPtr(target_arch)),
65 m_register_info_count(GetRegisterInfoCount(target_arch))
66 {
67 }
68
69 size_t
GetGPRSize() const70 RegisterContextFreeBSD_arm64::GetGPRSize() const
71 {
72 return sizeof(struct RegisterContextFreeBSD_arm64::GPR);
73 }
74
75 const lldb_private::RegisterInfo *
GetRegisterInfo() const76 RegisterContextFreeBSD_arm64::GetRegisterInfo() const
77 {
78 return m_register_info_p;
79 }
80
81 uint32_t
GetRegisterCount() const82 RegisterContextFreeBSD_arm64::GetRegisterCount() const
83 {
84 return m_register_info_count;
85 }
86
87