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//===-- RegisterContextPOSIX_mips64.cpp -------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include <cstring>
#include <errno.h>
#include <stdint.h>
#include "lldb/Core/DataBufferHeap.h"
#include "lldb/Core/DataExtractor.h"
#include "lldb/Core/RegisterValue.h"
#include "lldb/Core/Scalar.h"
#include "lldb/Host/Endian.h"
#include "lldb/Target/Target.h"
#include "lldb/Target/Thread.h"
#include "llvm/Support/Compiler.h"
#include "Plugins/Process/elf-core/ProcessElfCore.h"
#include "RegisterContextPOSIX_mips64.h"
using namespace lldb_private;
using namespace lldb;
static const uint32_t g_gpr_regnums[] = {
gpr_zero_mips64, gpr_r1_mips64, gpr_r2_mips64, gpr_r3_mips64,
gpr_r4_mips64, gpr_r5_mips64, gpr_r6_mips64, gpr_r7_mips64,
gpr_r8_mips64, gpr_r9_mips64, gpr_r10_mips64, gpr_r11_mips64,
gpr_r12_mips64, gpr_r13_mips64, gpr_r14_mips64, gpr_r15_mips64,
gpr_r16_mips64, gpr_r17_mips64, gpr_r18_mips64, gpr_r19_mips64,
gpr_r20_mips64, gpr_r21_mips64, gpr_r22_mips64, gpr_r23_mips64,
gpr_r24_mips64, gpr_r25_mips64, gpr_r26_mips64, gpr_r27_mips64,
gpr_gp_mips64, gpr_sp_mips64, gpr_r30_mips64, gpr_ra_mips64,
gpr_sr_mips64, gpr_mullo_mips64, gpr_mulhi_mips64, gpr_badvaddr_mips64,
gpr_cause_mips64, gpr_pc_mips64, gpr_ic_mips64, gpr_dummy_mips64};
// Number of register sets provided by this context.
enum { k_num_register_sets = 1 };
static const RegisterSet g_reg_sets_mips64[k_num_register_sets] = {
{"General Purpose Registers", "gpr", k_num_gpr_registers_mips64,
g_gpr_regnums},
};
bool RegisterContextPOSIX_mips64::IsGPR(unsigned reg) {
return reg <= k_num_gpr_registers_mips64; // GPR's come first.
}
bool RegisterContextPOSIX_mips64::IsFPR(unsigned reg) {
// XXX
return false;
}
RegisterContextPOSIX_mips64::RegisterContextPOSIX_mips64(
Thread &thread, uint32_t concrete_frame_idx,
RegisterInfoInterface *register_info)
: RegisterContext(thread, concrete_frame_idx) {
m_register_info_ap.reset(register_info);
// elf-core yet to support ReadFPR()
ProcessSP base = CalculateProcess();
if (base.get()->GetPluginName() == ProcessElfCore::GetPluginNameStatic())
return;
}
RegisterContextPOSIX_mips64::~RegisterContextPOSIX_mips64() {}
void RegisterContextPOSIX_mips64::Invalidate() {}
void RegisterContextPOSIX_mips64::InvalidateAllRegisters() {}
unsigned RegisterContextPOSIX_mips64::GetRegisterOffset(unsigned reg) {
assert(reg < k_num_registers_mips64 && "Invalid register number.");
return GetRegisterInfo()[reg].byte_offset;
}
unsigned RegisterContextPOSIX_mips64::GetRegisterSize(unsigned reg) {
assert(reg < k_num_registers_mips64 && "Invalid register number.");
return GetRegisterInfo()[reg].byte_size;
}
size_t RegisterContextPOSIX_mips64::GetRegisterCount() {
size_t num_registers = k_num_registers_mips64;
return num_registers;
}
size_t RegisterContextPOSIX_mips64::GetGPRSize() {
return m_register_info_ap->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_ap->GetRegisterInfo();
}
const RegisterInfo *
RegisterContextPOSIX_mips64::GetRegisterInfoAtIndex(size_t reg) {
if (reg < k_num_registers_mips64)
return &GetRegisterInfo()[reg];
else
return NULL;
}
size_t RegisterContextPOSIX_mips64::GetRegisterSetCount() {
size_t sets = 0;
for (size_t set = 0; set < k_num_register_sets; ++set) {
if (IsRegisterSetAvailable(set))
++sets;
}
return sets;
}
const RegisterSet *RegisterContextPOSIX_mips64::GetRegisterSet(size_t set) {
if (IsRegisterSetAvailable(set))
return &g_reg_sets_mips64[set];
else
return NULL;
}
const char *RegisterContextPOSIX_mips64::GetRegisterName(unsigned reg) {
assert(reg < k_num_registers_mips64 && "Invalid register offset.");
return GetRegisterInfo()[reg].name;
}
lldb::ByteOrder RegisterContextPOSIX_mips64::GetByteOrder() {
// Get the target process whose privileged thread was used for the register
// read.
lldb::ByteOrder byte_order = eByteOrderInvalid;
Process *process = CalculateProcess().get();
if (process)
byte_order = process->GetByteOrder();
return byte_order;
}
bool RegisterContextPOSIX_mips64::IsRegisterSetAvailable(size_t set_index) {
size_t num_sets = k_num_register_sets;
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 = GetRegisterCount();
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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