| //===-- RegisterContextFreeBSD_x86_64.cpp ----------------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===---------------------------------------------------------------------===// |
| |
| #include "RegisterContextFreeBSD_x86_64.h" |
| #include "RegisterContextFreeBSD_i386.h" |
| #include "RegisterContextPOSIX_x86.h" |
| #include <vector> |
| |
| using namespace lldb_private; |
| using namespace lldb; |
| |
| // http://svnweb.freebsd.org/base/head/sys/x86/include/reg.h |
| typedef struct _GPR { |
| uint64_t r15; |
| uint64_t r14; |
| uint64_t r13; |
| uint64_t r12; |
| uint64_t r11; |
| uint64_t r10; |
| uint64_t r9; |
| uint64_t r8; |
| uint64_t rdi; |
| uint64_t rsi; |
| uint64_t rbp; |
| uint64_t rbx; |
| uint64_t rdx; |
| uint64_t rcx; |
| uint64_t rax; |
| uint32_t trapno; |
| uint16_t fs; |
| uint16_t gs; |
| uint32_t err; |
| uint16_t es; |
| uint16_t ds; |
| uint64_t rip; |
| uint64_t cs; |
| uint64_t rflags; |
| uint64_t rsp; |
| uint64_t ss; |
| } GPR; |
| |
| struct DBG { |
| uint64_t dr[16]; /* debug registers */ |
| /* Index 0-3: debug address registers */ |
| /* Index 4-5: reserved */ |
| /* Index 6: debug status */ |
| /* Index 7: debug control */ |
| /* Index 8-15: reserved */ |
| }; |
| |
| struct UserArea { |
| GPR gpr; |
| FPR fpr; |
| DBG dbg; |
| }; |
| |
| #define DR_OFFSET(reg_index) (LLVM_EXTENSION offsetof(DBG, dr[reg_index])) |
| |
| //--------------------------------------------------------------------------- |
| // Include RegisterInfos_x86_64 to declare our g_register_infos_x86_64 |
| // structure. |
| //--------------------------------------------------------------------------- |
| #define DECLARE_REGISTER_INFOS_X86_64_STRUCT |
| #include "RegisterInfos_x86_64.h" |
| #undef DECLARE_REGISTER_INFOS_X86_64_STRUCT |
| |
| static std::vector<lldb_private::RegisterInfo> &GetSharedRegisterInfoVector() { |
| static std::vector<lldb_private::RegisterInfo> register_infos; |
| return register_infos; |
| } |
| |
| static const RegisterInfo * |
| GetRegisterInfo_i386(const lldb_private::ArchSpec &arch) { |
| static std::vector<lldb_private::RegisterInfo> g_register_infos( |
| GetSharedRegisterInfoVector()); |
| |
| // Allocate RegisterInfo only once |
| if (g_register_infos.empty()) { |
| // Copy the register information from base class |
| std::unique_ptr<RegisterContextFreeBSD_i386> reg_interface( |
| new RegisterContextFreeBSD_i386(arch)); |
| const RegisterInfo *base_info = reg_interface->GetRegisterInfo(); |
| g_register_infos.insert(g_register_infos.end(), &base_info[0], |
| &base_info[k_num_registers_i386]); |
| |
| //--------------------------------------------------------------------------- |
| // Include RegisterInfos_x86_64 to update the g_register_infos structure |
| // with x86_64 offsets. |
| //--------------------------------------------------------------------------- |
| #define UPDATE_REGISTER_INFOS_I386_STRUCT_WITH_X86_64_OFFSETS |
| #include "RegisterInfos_x86_64.h" |
| #undef UPDATE_REGISTER_INFOS_I386_STRUCT_WITH_X86_64_OFFSETS |
| } |
| |
| return &g_register_infos[0]; |
| } |
| |
| static const RegisterInfo * |
| PrivateGetRegisterInfoPtr(const lldb_private::ArchSpec &target_arch) { |
| switch (target_arch.GetMachine()) { |
| case llvm::Triple::x86: |
| return GetRegisterInfo_i386(target_arch); |
| case llvm::Triple::x86_64: |
| return g_register_infos_x86_64; |
| default: |
| assert(false && "Unhandled target architecture."); |
| return nullptr; |
| } |
| } |
| |
| static uint32_t |
| PrivateGetRegisterCount(const lldb_private::ArchSpec &target_arch) { |
| switch (target_arch.GetMachine()) { |
| case llvm::Triple::x86: |
| // This vector should have already been filled. |
| assert(!GetSharedRegisterInfoVector().empty() && |
| "i386 register info vector not filled."); |
| return static_cast<uint32_t>(GetSharedRegisterInfoVector().size()); |
| case llvm::Triple::x86_64: |
| return static_cast<uint32_t>(sizeof(g_register_infos_x86_64) / |
| sizeof(g_register_infos_x86_64[0])); |
| default: |
| assert(false && "Unhandled target architecture."); |
| return 0; |
| } |
| } |
| |
| RegisterContextFreeBSD_x86_64::RegisterContextFreeBSD_x86_64( |
| const ArchSpec &target_arch) |
| : lldb_private::RegisterInfoInterface(target_arch), |
| m_register_info_p(PrivateGetRegisterInfoPtr(target_arch)), |
| m_register_count(PrivateGetRegisterCount(target_arch)) {} |
| |
| size_t RegisterContextFreeBSD_x86_64::GetGPRSize() const { return sizeof(GPR); } |
| |
| const RegisterInfo *RegisterContextFreeBSD_x86_64::GetRegisterInfo() const { |
| return m_register_info_p; |
| } |
| |
| uint32_t RegisterContextFreeBSD_x86_64::GetRegisterCount() const { |
| return m_register_count; |
| } |