| //===-- RegisterContextOpenBSD_i386.cpp ------------------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===---------------------------------------------------------------------===// |
| |
| #include "RegisterContextOpenBSD_i386.h" |
| #include "RegisterContextPOSIX_x86.h" |
| |
| using namespace lldb_private; |
| using namespace lldb; |
| |
| // /usr/include/machine/reg.h |
| struct GPR { |
| uint32_t eax; |
| uint32_t ecx; |
| uint32_t edx; |
| uint32_t ebx; |
| uint32_t esp; |
| uint32_t ebp; |
| uint32_t esi; |
| uint32_t edi; |
| uint32_t eip; |
| uint32_t eflags; |
| uint32_t cs; |
| uint32_t ss; |
| uint32_t ds; |
| uint32_t es; |
| uint32_t fs; |
| uint32_t gs; |
| }; |
| |
| struct dbreg { |
| uint32_t dr[8]; /* debug registers */ |
| /* Index 0-3: debug address registers */ |
| /* Index 4-5: reserved */ |
| /* Index 6: debug status */ |
| /* Index 7: debug control */ |
| }; |
| |
| using FPR_i386 = FXSAVE; |
| |
| struct UserArea { |
| GPR gpr; |
| FPR_i386 i387; |
| }; |
| |
| #define DR_SIZE sizeof(uint32_t) |
| #define DR_OFFSET(reg_index) (LLVM_EXTENSION offsetof(dbreg, dr[reg_index])) |
| |
| //--------------------------------------------------------------------------- |
| // Include RegisterInfos_i386 to declare our g_register_infos_i386 structure. |
| //--------------------------------------------------------------------------- |
| #define DECLARE_REGISTER_INFOS_I386_STRUCT |
| #include "RegisterInfos_i386.h" |
| #undef DECLARE_REGISTER_INFOS_I386_STRUCT |
| |
| RegisterContextOpenBSD_i386::RegisterContextOpenBSD_i386( |
| const ArchSpec &target_arch) |
| : RegisterInfoInterface(target_arch) {} |
| |
| size_t RegisterContextOpenBSD_i386::GetGPRSize() const { return sizeof(GPR); } |
| |
| const RegisterInfo *RegisterContextOpenBSD_i386::GetRegisterInfo() const { |
| switch (m_target_arch.GetMachine()) { |
| case llvm::Triple::x86: |
| return g_register_infos_i386; |
| default: |
| assert(false && "Unhandled target architecture."); |
| return NULL; |
| } |
| } |
| |
| uint32_t RegisterContextOpenBSD_i386::GetRegisterCount() const { |
| return static_cast<uint32_t>(sizeof(g_register_infos_i386) / |
| sizeof(g_register_infos_i386[0])); |
| } |