RegisterContextLinux_mips64.cpp
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//===-- RegisterContextLinux_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 <stddef.h>
#include <vector>
// For eh_frame and DWARF Register numbers
#include "RegisterContextLinux_mips64.h"
// For GP and FP buffers
#include "RegisterContext_mips.h"
// Internal codes for all mips32 and mips64 registers
#include "lldb-mips-linux-register-enums.h"
using namespace lldb;
using namespace lldb_private;
// Include RegisterInfos_mips64 to declare our g_register_infos_mips64
// structure.
#define DECLARE_REGISTER_INFOS_MIPS64_STRUCT
#define LINUX_MIPS64
#include "RegisterInfos_mips64.h"
#undef LINUX_MIPS64
#undef DECLARE_REGISTER_INFOS_MIPS64_STRUCT
// Include RegisterInfos_mips to declare our g_register_infos_mips structure.
#define DECLARE_REGISTER_INFOS_MIPS_STRUCT
#include "RegisterInfos_mips.h"
#undef DECLARE_REGISTER_INFOS_MIPS_STRUCT
// mips64 general purpose registers.
const uint32_t g_gp_regnums_mips64[] = {
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_config5_mips64,
LLDB_INVALID_REGNUM // register sets need to end with this flag
};
static_assert((sizeof(g_gp_regnums_mips64) / sizeof(g_gp_regnums_mips64[0])) -
1 ==
k_num_gpr_registers_mips64,
"g_gp_regnums_mips64 has wrong number of register infos");
// mips64 floating point registers.
const uint32_t g_fp_regnums_mips64[] = {
fpr_f0_mips64, fpr_f1_mips64, fpr_f2_mips64, fpr_f3_mips64,
fpr_f4_mips64, fpr_f5_mips64, fpr_f6_mips64, fpr_f7_mips64,
fpr_f8_mips64, fpr_f9_mips64, fpr_f10_mips64, fpr_f11_mips64,
fpr_f12_mips64, fpr_f13_mips64, fpr_f14_mips64, fpr_f15_mips64,
fpr_f16_mips64, fpr_f17_mips64, fpr_f18_mips64, fpr_f19_mips64,
fpr_f20_mips64, fpr_f21_mips64, fpr_f22_mips64, fpr_f23_mips64,
fpr_f24_mips64, fpr_f25_mips64, fpr_f26_mips64, fpr_f27_mips64,
fpr_f28_mips64, fpr_f29_mips64, fpr_f30_mips64, fpr_f31_mips64,
fpr_fcsr_mips64, fpr_fir_mips64, fpr_config5_mips64,
LLDB_INVALID_REGNUM // register sets need to end with this flag
};
static_assert((sizeof(g_fp_regnums_mips64) / sizeof(g_fp_regnums_mips64[0])) -
1 ==
k_num_fpr_registers_mips64,
"g_fp_regnums_mips64 has wrong number of register infos");
// mips64 MSA registers.
const uint32_t g_msa_regnums_mips64[] = {
msa_w0_mips64, msa_w1_mips64, msa_w2_mips64, msa_w3_mips64,
msa_w4_mips64, msa_w5_mips64, msa_w6_mips64, msa_w7_mips64,
msa_w8_mips64, msa_w9_mips64, msa_w10_mips64, msa_w11_mips64,
msa_w12_mips64, msa_w13_mips64, msa_w14_mips64, msa_w15_mips64,
msa_w16_mips64, msa_w17_mips64, msa_w18_mips64, msa_w19_mips64,
msa_w20_mips64, msa_w21_mips64, msa_w22_mips64, msa_w23_mips64,
msa_w24_mips64, msa_w25_mips64, msa_w26_mips64, msa_w27_mips64,
msa_w28_mips64, msa_w29_mips64, msa_w30_mips64, msa_w31_mips64,
msa_fcsr_mips64, msa_fir_mips64, msa_mcsr_mips64, msa_mir_mips64,
msa_config5_mips64,
LLDB_INVALID_REGNUM // register sets need to end with this flag
};
static_assert((sizeof(g_msa_regnums_mips64) / sizeof(g_msa_regnums_mips64[0])) -
1 ==
k_num_msa_registers_mips64,
"g_msa_regnums_mips64 has wrong number of register infos");
// Number of register sets provided by this context.
constexpr size_t k_num_register_sets = 3;
// Register sets for mips64.
static const RegisterSet g_reg_sets_mips64[k_num_register_sets] = {
{"General Purpose Registers", "gpr", k_num_gpr_registers_mips64,
g_gp_regnums_mips64},
{"Floating Point Registers", "fpu", k_num_fpr_registers_mips64,
g_fp_regnums_mips64},
{"MSA Registers", "msa", k_num_msa_registers_mips64, g_msa_regnums_mips64},
};
const RegisterSet *
RegisterContextLinux_mips64::GetRegisterSet(size_t set) const {
if (set >= k_num_register_sets)
return nullptr;
switch (m_target_arch.GetMachine()) {
case llvm::Triple::mips64:
case llvm::Triple::mips64el:
return &g_reg_sets_mips64[set];
default:
assert(false && "Unhandled target architecture.");
return nullptr;
}
return nullptr;
}
size_t
RegisterContextLinux_mips64::GetRegisterSetCount() const {
return k_num_register_sets;
}
static const RegisterInfo *GetRegisterInfoPtr(const ArchSpec &target_arch) {
switch (target_arch.GetMachine()) {
case llvm::Triple::mips64:
case llvm::Triple::mips64el:
return g_register_infos_mips64;
case llvm::Triple::mips:
case llvm::Triple::mipsel:
return g_register_infos_mips;
default:
assert(false && "Unhandled target architecture.");
return nullptr;
}
}
static uint32_t GetRegisterInfoCount(const ArchSpec &target_arch) {
switch (target_arch.GetMachine()) {
case llvm::Triple::mips64:
case llvm::Triple::mips64el:
return static_cast<uint32_t>(sizeof(g_register_infos_mips64) /
sizeof(g_register_infos_mips64[0]));
case llvm::Triple::mips:
case llvm::Triple::mipsel:
return static_cast<uint32_t>(sizeof(g_register_infos_mips) /
sizeof(g_register_infos_mips[0]));
default:
assert(false && "Unhandled target architecture.");
return 0;
}
}
uint32_t GetUserRegisterInfoCount(const ArchSpec &target_arch,
bool msa_present) {
switch (target_arch.GetMachine()) {
case llvm::Triple::mips:
case llvm::Triple::mipsel:
if (msa_present)
return static_cast<uint32_t>(k_num_user_registers_mips);
return static_cast<uint32_t>(k_num_user_registers_mips -
k_num_msa_registers_mips);
case llvm::Triple::mips64el:
case llvm::Triple::mips64:
if (msa_present)
return static_cast<uint32_t>(k_num_user_registers_mips64);
return static_cast<uint32_t>(k_num_user_registers_mips64 -
k_num_msa_registers_mips64);
default:
assert(false && "Unhandled target architecture.");
return 0;
}
}
RegisterContextLinux_mips64::RegisterContextLinux_mips64(
const ArchSpec &target_arch, bool msa_present)
: lldb_private::RegisterInfoInterface(target_arch),
m_register_info_p(GetRegisterInfoPtr(target_arch)),
m_register_info_count(GetRegisterInfoCount(target_arch)),
m_user_register_count(
GetUserRegisterInfoCount(target_arch, msa_present)) {}
size_t RegisterContextLinux_mips64::GetGPRSize() const {
return sizeof(GPR_linux_mips);
}
const RegisterInfo *RegisterContextLinux_mips64::GetRegisterInfo() const {
return m_register_info_p;
}
uint32_t RegisterContextLinux_mips64::GetRegisterCount() const {
return m_register_info_count;
}
uint32_t RegisterContextLinux_mips64::GetUserRegisterCount() const {
return m_user_register_count;
}