1//===-- RegisterContextFreeBSD_x86_64.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_x86.h" 12#include "RegisterContextFreeBSD_i386.h" 13#include "RegisterContextFreeBSD_x86_64.h" 14 15using namespace lldb_private; 16using namespace lldb; 17 18// http://svnweb.freebsd.org/base/head/sys/x86/include/reg.h 19typedef struct _GPR 20{ 21 uint64_t r15; 22 uint64_t r14; 23 uint64_t r13; 24 uint64_t r12; 25 uint64_t r11; 26 uint64_t r10; 27 uint64_t r9; 28 uint64_t r8; 29 uint64_t rdi; 30 uint64_t rsi; 31 uint64_t rbp; 32 uint64_t rbx; 33 uint64_t rdx; 34 uint64_t rcx; 35 uint64_t rax; 36 uint32_t trapno; 37 uint16_t fs; 38 uint16_t gs; 39 uint32_t err; 40 uint16_t es; 41 uint16_t ds; 42 uint64_t rip; 43 uint64_t cs; 44 uint64_t rflags; 45 uint64_t rsp; 46 uint64_t ss; 47} GPR; 48 49struct dbreg { 50 uint64_t dr[16]; /* debug registers */ 51 /* Index 0-3: debug address registers */ 52 /* Index 4-5: reserved */ 53 /* Index 6: debug status */ 54 /* Index 7: debug control */ 55 /* Index 8-15: reserved */ 56}; 57 58#define DR_SIZE sizeof(uint64_t) 59#define DR_OFFSET(reg_index) \ 60 (LLVM_EXTENSION offsetof(dbreg, dr[reg_index])) 61 62 63//--------------------------------------------------------------------------- 64// Include RegisterInfos_x86_64 to declare our g_register_infos_x86_64 structure. 65//--------------------------------------------------------------------------- 66#define DECLARE_REGISTER_INFOS_X86_64_STRUCT 67#include "RegisterInfos_x86_64.h" 68#undef DECLARE_REGISTER_INFOS_X86_64_STRUCT 69 70static const RegisterInfo * 71GetRegisterInfo_i386(const lldb_private::ArchSpec& arch) 72{ 73 static std::vector<lldb_private::RegisterInfo> g_register_infos; 74 75 // Allocate RegisterInfo only once 76 if (g_register_infos.empty()) 77 { 78 // Copy the register information from base class 79 std::unique_ptr<RegisterContextFreeBSD_i386> reg_interface(new RegisterContextFreeBSD_i386 (arch)); 80 const RegisterInfo *base_info = reg_interface->GetRegisterInfo(); 81 g_register_infos.insert(g_register_infos.end(), &base_info[0], &base_info[k_num_registers_i386]); 82 83 //--------------------------------------------------------------------------- 84 // Include RegisterInfos_x86_64 to update the g_register_infos structure 85 // with x86_64 offsets. 86 //--------------------------------------------------------------------------- 87 #define UPDATE_REGISTER_INFOS_I386_STRUCT_WITH_X86_64_OFFSETS 88 #include "RegisterInfos_x86_64.h" 89 #undef UPDATE_REGISTER_INFOS_I386_STRUCT_WITH_X86_64_OFFSETS 90 } 91 92 return &g_register_infos[0]; 93} 94 95RegisterContextFreeBSD_x86_64::RegisterContextFreeBSD_x86_64(const ArchSpec &target_arch) : 96 RegisterInfoInterface(target_arch) 97{ 98} 99 100RegisterContextFreeBSD_x86_64::~RegisterContextFreeBSD_x86_64() 101{ 102} 103 104size_t 105RegisterContextFreeBSD_x86_64::GetGPRSize() 106{ 107 return sizeof(GPR); 108} 109 110const RegisterInfo * 111RegisterContextFreeBSD_x86_64::GetRegisterInfo() 112{ 113 switch (m_target_arch.GetCore()) 114 { 115 case ArchSpec::eCore_x86_32_i386: 116 case ArchSpec::eCore_x86_32_i486: 117 case ArchSpec::eCore_x86_32_i486sx: 118 return GetRegisterInfo_i386 (m_target_arch); 119 case ArchSpec::eCore_x86_64_x86_64: 120 return g_register_infos_x86_64; 121 default: 122 assert(false && "Unhandled target architecture."); 123 return NULL; 124 } 125} 126 127