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//===-- RegisterContextPOSIX_mips64.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 <cerrno>
#include <cstdint>
#include <cstring>
#include "lldb/Target/Process.h"
#include "lldb/Target/Target.h"
#include "lldb/Target/Thread.h"
#include "lldb/Utility/DataBufferHeap.h"
#include "lldb/Utility/DataExtractor.h"
#include "lldb/Utility/Endian.h"
#include "lldb/Utility/RegisterValue.h"
#include "lldb/Utility/Scalar.h"
#include "llvm/Support/Compiler.h"
#include "RegisterContextPOSIX_mips64.h"
#include "RegisterContextFreeBSD_mips64.h"
using namespace lldb_private;
using namespace lldb;
bool RegisterContextPOSIX_mips64::IsGPR(unsigned reg) {
return reg < m_registers_count[gpr_registers_count]; // GPR's come first.
}
bool RegisterContextPOSIX_mips64::IsFPR(unsigned reg) {
int set = GetRegisterSetCount();
if (set > 1)
return reg < (m_registers_count[fpr_registers_count]
+ m_registers_count[gpr_registers_count]);
return false;
}
RegisterContextPOSIX_mips64::RegisterContextPOSIX_mips64(
Thread &thread, uint32_t concrete_frame_idx,
RegisterInfoInterface *register_info)
: RegisterContext(thread, concrete_frame_idx) {
m_register_info_up.reset(register_info);
m_num_registers = GetRegisterCount();
int set = GetRegisterSetCount();
const RegisterSet *reg_set_ptr;
for(int i = 0; i < set; ++i) {
reg_set_ptr = GetRegisterSet(i);
m_registers_count[i] = reg_set_ptr->num_registers;
}
assert(m_num_registers ==
static_cast<uint32_t>(m_registers_count[gpr_registers_count] +
m_registers_count[fpr_registers_count] +
m_registers_count[msa_registers_count]));
}
RegisterContextPOSIX_mips64::~RegisterContextPOSIX_mips64() = default;
void RegisterContextPOSIX_mips64::Invalidate() {}
void RegisterContextPOSIX_mips64::InvalidateAllRegisters() {}
unsigned RegisterContextPOSIX_mips64::GetRegisterOffset(unsigned reg) {
assert(reg < m_num_registers && "Invalid register number.");
return GetRegisterInfo()[reg].byte_offset;
}
unsigned RegisterContextPOSIX_mips64::GetRegisterSize(unsigned reg) {
assert(reg < m_num_registers && "Invalid register number.");
return GetRegisterInfo()[reg].byte_size;
}
size_t RegisterContextPOSIX_mips64::GetRegisterCount() {
return m_register_info_up->GetRegisterCount();
}
size_t RegisterContextPOSIX_mips64::GetGPRSize() {
return m_register_info_up->GetGPRSize();
}
const RegisterInfo *RegisterContextPOSIX_mips64::GetRegisterInfo() {
// Commonly, this method is overridden and g_register_infos is copied and
// specialized. So, use GetRegisterInfo() rather than g_register_infos in
// this scope.
return m_register_info_up->GetRegisterInfo();
}
const RegisterInfo *
RegisterContextPOSIX_mips64::GetRegisterInfoAtIndex(size_t reg) {
if (reg < m_num_registers)
return &GetRegisterInfo()[reg];
else
return nullptr;
}
size_t RegisterContextPOSIX_mips64::GetRegisterSetCount() {
ArchSpec target_arch = m_register_info_up->GetTargetArchitecture();
switch (target_arch.GetTriple().getOS()) {
default: {
const auto *context = static_cast<const RegisterContextFreeBSD_mips64 *>(
m_register_info_up.get());
return context->GetRegisterSetCount();
}
}
}
const RegisterSet *RegisterContextPOSIX_mips64::GetRegisterSet(size_t set) {
ArchSpec target_arch = m_register_info_up->GetTargetArchitecture();
switch (target_arch.GetTriple().getOS()) {
default: {
const auto *context = static_cast<const RegisterContextFreeBSD_mips64 *>(
m_register_info_up.get());
return context->GetRegisterSet(set);
}
}
}
const char *RegisterContextPOSIX_mips64::GetRegisterName(unsigned reg) {
assert(reg < m_num_registers && "Invalid register offset.");
return GetRegisterInfo()[reg].name;
}
bool RegisterContextPOSIX_mips64::IsRegisterSetAvailable(size_t set_index) {
size_t num_sets = GetRegisterSetCount();
return (set_index < num_sets);
}
// Used when parsing DWARF and EH frame information and any other object file
// sections that contain register numbers in them.
uint32_t RegisterContextPOSIX_mips64::ConvertRegisterKindToRegisterNumber(
lldb::RegisterKind kind, uint32_t num) {
const uint32_t num_regs = m_num_registers;
assert(kind < kNumRegisterKinds);
for (uint32_t reg_idx = 0; reg_idx < num_regs; ++reg_idx) {
const RegisterInfo *reg_info = GetRegisterInfoAtIndex(reg_idx);
if (reg_info->kinds[kind] == num)
return reg_idx;
}
return LLDB_INVALID_REGNUM;
}
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