1 //===-- RegisterContextFreeBSD_i386.cpp ------------------------*- C++ -*-===//
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===---------------------------------------------------------------------===//
9 #include "RegisterContextFreeBSD_i386.h"
10 #include "RegisterContextPOSIX_x86.h"
12 using namespace lldb_private;
15 // http://svnweb.freebsd.org/base/head/sys/x86/include/reg.h
39 uint32_t dr[8]; /* debug registers */
40 /* Index 0-3: debug address registers */
41 /* Index 4-5: reserved */
42 /* Index 6: debug status */
43 /* Index 7: debug control */
46 using FPR_i386 = FXSAVE;
53 #define DR_SIZE sizeof(uint32_t)
54 #define DR_OFFSET(reg_index) (LLVM_EXTENSION offsetof(dbreg, dr[reg_index]))
56 // Include RegisterInfos_i386 to declare our g_register_infos_i386 structure.
57 #define DECLARE_REGISTER_INFOS_I386_STRUCT
58 #include "RegisterInfos_i386.h"
59 #undef DECLARE_REGISTER_INFOS_I386_STRUCT
61 RegisterContextFreeBSD_i386::RegisterContextFreeBSD_i386(
62 const ArchSpec &target_arch)
63 : RegisterInfoInterface(target_arch) {}
65 size_t RegisterContextFreeBSD_i386::GetGPRSize() const { return sizeof(GPR); }
67 const RegisterInfo *RegisterContextFreeBSD_i386::GetRegisterInfo() const {
68 switch (m_target_arch.GetMachine()) {
69 case llvm::Triple::x86:
70 return g_register_infos_i386;
72 assert(false && "Unhandled target architecture.");
77 uint32_t RegisterContextFreeBSD_i386::GetRegisterCount() const {
78 return static_cast<uint32_t>(sizeof(g_register_infos_i386) /
79 sizeof(g_register_infos_i386[0]));