lldb/source/Plugins/Process/Utility/RegisterContextFreeBSD_mips64.cpp

   1 //===-- RegisterContextFreeBSD_mips64.cpp ---------------------------------===//
   2 //
   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
   6 //
   7 //===---------------------------------------------------------------------===//
   8
   9 #include "RegisterContextFreeBSD_mips64.h"
  10 #include "RegisterContextPOSIX_mips64.h"
  11 #include "lldb-mips-freebsd-register-enums.h"
  12 #include <vector>
  13
  14 using namespace lldb_private;
  15 using namespace lldb;
  16
  17 static const uint32_t g_gp_regnums_mips64[] = {
  18     gpr_zero_mips64,    gpr_r1_mips64,    gpr_r2_mips64,    gpr_r3_mips64,
  19     gpr_r4_mips64,      gpr_r5_mips64,    gpr_r6_mips64,    gpr_r7_mips64,
  20     gpr_r8_mips64,      gpr_r9_mips64,    gpr_r10_mips64,   gpr_r11_mips64,
  21     gpr_r12_mips64,     gpr_r13_mips64,   gpr_r14_mips64,   gpr_r15_mips64,
  22     gpr_r16_mips64,     gpr_r17_mips64,   gpr_r18_mips64,   gpr_r19_mips64,
  23     gpr_r20_mips64,     gpr_r21_mips64,   gpr_r22_mips64,   gpr_r23_mips64,
  24     gpr_r24_mips64,     gpr_r25_mips64,   gpr_r26_mips64,   gpr_r27_mips64,
  25     gpr_gp_mips64,      gpr_sp_mips64,    gpr_r30_mips64,   gpr_ra_mips64,
  26     gpr_sr_mips64,      gpr_mullo_mips64, gpr_mulhi_mips64, gpr_badvaddr_mips64,
  27     gpr_cause_mips64,   gpr_pc_mips64,    gpr_ic_mips64,    gpr_dummy_mips64,
  28     LLDB_INVALID_REGNUM // register sets need to end with this flag
  29 };
  30
  31 static_assert((sizeof(g_gp_regnums_mips64) / sizeof(g_gp_regnums_mips64[0])) -
  32                       1 ==
  33                   k_num_gpr_registers_mips64,
  34               "g_gp_regnums_mips64 has wrong number of register infos");
  35
  36 const uint32_t g_fp_regnums_mips64[] = {
  37     fpr_f0_mips64,      fpr_f1_mips64,  fpr_f2_mips64,  fpr_f3_mips64,
  38     fpr_f4_mips64,      fpr_f5_mips64,  fpr_f6_mips64,  fpr_f7_mips64,
  39     fpr_f8_mips64,      fpr_f9_mips64,  fpr_f10_mips64, fpr_f11_mips64,
  40     fpr_f12_mips64,     fpr_f13_mips64, fpr_f14_mips64, fpr_f15_mips64,
  41     fpr_f16_mips64,     fpr_f17_mips64, fpr_f18_mips64, fpr_f19_mips64,
  42     fpr_f20_mips64,     fpr_f21_mips64, fpr_f22_mips64, fpr_f23_mips64,
  43     fpr_f24_mips64,     fpr_f25_mips64, fpr_f26_mips64, fpr_f27_mips64,
  44     fpr_f28_mips64,     fpr_f29_mips64, fpr_f30_mips64, fpr_f31_mips64,
  45     fpr_fcsr_mips64,    fpr_fir_mips64,
  46     LLDB_INVALID_REGNUM // register sets need to end with this flag
  47 };
  48
  49 static_assert((sizeof(g_fp_regnums_mips64) / sizeof(g_fp_regnums_mips64[0])) -
  50                       1 ==
  51                   k_num_fpr_registers_mips64,
  52               "g_fp_regnums_mips64 has wrong number of register infos");
  53
  54 // Number of register sets provided by this context.
  55 constexpr size_t k_num_register_sets = 2;
  56
  57 static const RegisterSet g_reg_sets_mips64[k_num_register_sets] = {
  58     {"General Purpose Registers", "gpr", k_num_gpr_registers_mips64,
  59      g_gp_regnums_mips64},
  60     {"Floating Point Registers", "fpu", k_num_fpr_registers_mips64,
  61      g_fp_regnums_mips64},
  62 };
  63
  64 // http://svnweb.freebsd.org/base/head/sys/mips/include/regnum.h
  65 typedef struct _GPR {
  66   uint64_t zero;
  67   uint64_t r1;
  68   uint64_t r2;
  69   uint64_t r3;
  70   uint64_t r4;
  71   uint64_t r5;
  72   uint64_t r6;
  73   uint64_t r7;
  74   uint64_t r8;
  75   uint64_t r9;
  76   uint64_t r10;
  77   uint64_t r11;
  78   uint64_t r12;
  79   uint64_t r13;
  80   uint64_t r14;
  81   uint64_t r15;
  82   uint64_t r16;
  83   uint64_t r17;
  84   uint64_t r18;
  85   uint64_t r19;
  86   uint64_t r20;
  87   uint64_t r21;
  88   uint64_t r22;
  89   uint64_t r23;
  90   uint64_t r24;
  91   uint64_t r25;
  92   uint64_t r26;
  93   uint64_t r27;
  94   uint64_t gp;
  95   uint64_t sp;
  96   uint64_t r30;
  97   uint64_t ra;
  98   uint64_t sr;
  99   uint64_t mullo;
 100   uint64_t mulhi;
 101   uint64_t badvaddr;
 102   uint64_t cause;
 103   uint64_t pc;
 104   uint64_t ic;
 105   uint64_t dummy;
 106 } GPR_freebsd_mips;
 107
 108 typedef struct _FPR {
 109   uint64_t f0;
 110   uint64_t f1;
 111   uint64_t f2;
 112   uint64_t f3;
 113   uint64_t f4;
 114   uint64_t f5;
 115   uint64_t f6;
 116   uint64_t f7;
 117   uint64_t f8;
 118   uint64_t f9;
 119   uint64_t f10;
 120   uint64_t f11;
 121   uint64_t f12;
 122   uint64_t f13;
 123   uint64_t f14;
 124   uint64_t f15;
 125   uint64_t f16;
 126   uint64_t f17;
 127   uint64_t f18;
 128   uint64_t f19;
 129   uint64_t f20;
 130   uint64_t f21;
 131   uint64_t f22;
 132   uint64_t f23;
 133   uint64_t f24;
 134   uint64_t f25;
 135   uint64_t f26;
 136   uint64_t f27;
 137   uint64_t f28;
 138   uint64_t f29;
 139   uint64_t f30;
 140   uint64_t f31;
 141   uint64_t fcsr;
 142   uint64_t fir;
 143 } FPR_freebsd_mips;
 144
 145 // Include RegisterInfos_mips64 to declare our g_register_infos_mips64
 146 // structure.
 147 #define DECLARE_REGISTER_INFOS_MIPS64_STRUCT
 148 #include "RegisterInfos_mips64.h"
 149 #undef DECLARE_REGISTER_INFOS_MIPS64_STRUCT
 150
 151 RegisterContextFreeBSD_mips64::RegisterContextFreeBSD_mips64(
 152     const ArchSpec &target_arch)
 153     : RegisterInfoInterface(target_arch) {}
 154
 155 size_t RegisterContextFreeBSD_mips64::GetGPRSize() const {
 156   return sizeof(GPR_freebsd_mips);
 157 }
 158
 159 const RegisterSet *
 160 RegisterContextFreeBSD_mips64::GetRegisterSet(size_t set) const {
 161   // Check if RegisterSet is available
 162   if (set < k_num_register_sets)
 163     return &g_reg_sets_mips64[set];
 164   return nullptr;
 165 }
 166
 167 size_t RegisterContextFreeBSD_mips64::GetRegisterSetCount() const {
 168   return k_num_register_sets;
 169 }
 170
 171 const RegisterInfo *RegisterContextFreeBSD_mips64::GetRegisterInfo() const {
 172   assert(GetTargetArchitecture().GetCore() == ArchSpec::eCore_mips64);
 173   return g_register_infos_mips64;
 174 }
 175
 176 uint32_t RegisterContextFreeBSD_mips64::GetRegisterCount() const {
 177   return static_cast<uint32_t>(sizeof(g_register_infos_mips64) /
 178                                sizeof(g_register_infos_mips64[0]));
 179 }