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//===-- RegisterContextFreeBSD_i386.cpp -----------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===---------------------------------------------------------------------===//
#include "RegisterContextFreeBSD_i386.h"
#include "RegisterContextPOSIX_x86.h"
using namespace lldb_private;
using namespace lldb;
// http://svnweb.freebsd.org/base/head/sys/x86/include/reg.h
struct GPR {
uint32_t fs;
uint32_t es;
uint32_t ds;
uint32_t edi;
uint32_t esi;
uint32_t ebp;
uint32_t isp;
uint32_t ebx;
uint32_t edx;
uint32_t ecx;
uint32_t eax;
uint32_t trapno;
uint32_t err;
uint32_t eip;
uint32_t cs;
uint32_t eflags;
uint32_t esp;
uint32_t ss;
uint32_t gs;
};
struct DBG {
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;
DBG dbg;
};
#define DR_SIZE sizeof(uint32_t)
#define DR_OFFSET(reg_index) \
(LLVM_EXTENSION offsetof(UserArea, dbg) + \
LLVM_EXTENSION offsetof(DBG, 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
RegisterContextFreeBSD_i386::RegisterContextFreeBSD_i386(
const ArchSpec &target_arch)
: RegisterInfoInterface(target_arch) {}
size_t RegisterContextFreeBSD_i386::GetGPRSize() const { return sizeof(GPR); }
const RegisterInfo *RegisterContextFreeBSD_i386::GetRegisterInfo() const {
switch (GetTargetArchitecture().GetMachine()) {
case llvm::Triple::x86:
return g_register_infos_i386;
default:
assert(false && "Unhandled target architecture.");
return nullptr;
}
}
uint32_t RegisterContextFreeBSD_i386::GetRegisterCount() const {
return static_cast<uint32_t>(sizeof(g_register_infos_i386) /
sizeof(g_register_infos_i386[0]));
}
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