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      1 //===-- DNBArchImplX86_64.cpp -----------------------------------*- C++ -*-===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is distributed under the University of Illinois Open Source
      6 // License. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 //
     10 //  Created by Greg Clayton on 6/25/07.
     11 //
     12 //===----------------------------------------------------------------------===//
     13 
     14 #if defined (__i386__) || defined (__x86_64__)
     15 
     16 #include <sys/cdefs.h>
     17 #include <sys/types.h>
     18 #include <sys/sysctl.h>
     19 
     20 #include "MacOSX/x86_64/DNBArchImplX86_64.h"
     21 #include "DNBLog.h"
     22 #include "MachThread.h"
     23 #include "MachProcess.h"
     24 #include <mach/mach.h>
     25 #include <stdlib.h>
     26 
     27 #if defined (LLDB_DEBUGSERVER_RELEASE) || defined (LLDB_DEBUGSERVER_DEBUG)
     28 enum debugState {
     29     debugStateUnknown,
     30     debugStateOff,
     31     debugStateOn
     32 };
     33 
     34 static debugState sFPUDebugState = debugStateUnknown;
     35 static debugState sAVXForceState = debugStateUnknown;
     36 
     37 static bool DebugFPURegs ()
     38 {
     39     if (sFPUDebugState == debugStateUnknown)
     40     {
     41         if (getenv("DNB_DEBUG_FPU_REGS"))
     42             sFPUDebugState = debugStateOn;
     43         else
     44             sFPUDebugState = debugStateOff;
     45     }
     46 
     47     return (sFPUDebugState == debugStateOn);
     48 }
     49 
     50 static bool ForceAVXRegs ()
     51 {
     52     if (sFPUDebugState == debugStateUnknown)
     53     {
     54         if (getenv("DNB_DEBUG_X86_FORCE_AVX_REGS"))
     55             sAVXForceState = debugStateOn;
     56         else
     57             sAVXForceState = debugStateOff;
     58     }
     59 
     60     return (sAVXForceState == debugStateOn);
     61 }
     62 
     63 #define DEBUG_FPU_REGS (DebugFPURegs())
     64 #define FORCE_AVX_REGS (ForceAVXRegs())
     65 #else
     66 #define DEBUG_FPU_REGS (0)
     67 #define FORCE_AVX_REGS (0)
     68 #endif
     69 
     70 
     71 extern "C" bool
     72 CPUHasAVX()
     73 {
     74     enum AVXPresence
     75     {
     76         eAVXUnknown     = -1,
     77         eAVXNotPresent  =  0,
     78         eAVXPresent     =  1
     79     };
     80 
     81     static AVXPresence g_has_avx = eAVXUnknown;
     82     if (g_has_avx == eAVXUnknown)
     83     {
     84         g_has_avx = eAVXNotPresent;
     85 
     86         // Only xnu-2020 or later has AVX support, any versions before
     87         // this have a busted thread_get_state RPC where it would truncate
     88         // the thread state buffer (<rdar://problem/10122874>). So we need to
     89         // verify the kernel version number manually or disable AVX support.
     90         int mib[2];
     91         char buffer[1024];
     92         size_t length = sizeof(buffer);
     93         uint64_t xnu_version = 0;
     94         mib[0] = CTL_KERN;
     95         mib[1] = KERN_VERSION;
     96         int err = ::sysctl(mib, 2, &buffer, &length, NULL, 0);
     97         if (err == 0)
     98         {
     99             const char *xnu = strstr (buffer, "xnu-");
    100             if (xnu)
    101             {
    102                 const char *xnu_version_cstr = xnu + 4;
    103                 xnu_version = strtoull (xnu_version_cstr, NULL, 0);
    104                 if (xnu_version >= 2020 && xnu_version != ULLONG_MAX)
    105                 {
    106                     if (::HasAVX())
    107                     {
    108                         g_has_avx = eAVXPresent;
    109                     }
    110                 }
    111             }
    112         }
    113         DNBLogThreadedIf (LOG_THREAD, "CPUHasAVX(): g_has_avx = %i (err = %i, errno = %i, xnu_version = %llu)", g_has_avx, err, errno, xnu_version);
    114     }
    115 
    116     return (g_has_avx == eAVXPresent);
    117 }
    118 
    119 uint64_t
    120 DNBArchImplX86_64::GetPC(uint64_t failValue)
    121 {
    122     // Get program counter
    123     if (GetGPRState(false) == KERN_SUCCESS)
    124         return m_state.context.gpr.__rip;
    125     return failValue;
    126 }
    127 
    128 kern_return_t
    129 DNBArchImplX86_64::SetPC(uint64_t value)
    130 {
    131     // Get program counter
    132     kern_return_t err = GetGPRState(false);
    133     if (err == KERN_SUCCESS)
    134     {
    135         m_state.context.gpr.__rip = value;
    136         err = SetGPRState();
    137     }
    138     return err == KERN_SUCCESS;
    139 }
    140 
    141 uint64_t
    142 DNBArchImplX86_64::GetSP(uint64_t failValue)
    143 {
    144     // Get stack pointer
    145     if (GetGPRState(false) == KERN_SUCCESS)
    146         return m_state.context.gpr.__rsp;
    147     return failValue;
    148 }
    149 
    150 // Uncomment the value below to verify the values in the debugger.
    151 //#define DEBUG_GPR_VALUES 1    // DO NOT CHECK IN WITH THIS DEFINE ENABLED
    152 
    153 kern_return_t
    154 DNBArchImplX86_64::GetGPRState(bool force)
    155 {
    156     if (force || m_state.GetError(e_regSetGPR, Read))
    157     {
    158 #if DEBUG_GPR_VALUES
    159         m_state.context.gpr.__rax = ('a' << 8) + 'x';
    160         m_state.context.gpr.__rbx = ('b' << 8) + 'x';
    161         m_state.context.gpr.__rcx = ('c' << 8) + 'x';
    162         m_state.context.gpr.__rdx = ('d' << 8) + 'x';
    163         m_state.context.gpr.__rdi = ('d' << 8) + 'i';
    164         m_state.context.gpr.__rsi = ('s' << 8) + 'i';
    165         m_state.context.gpr.__rbp = ('b' << 8) + 'p';
    166         m_state.context.gpr.__rsp = ('s' << 8) + 'p';
    167         m_state.context.gpr.__r8  = ('r' << 8) + '8';
    168         m_state.context.gpr.__r9  = ('r' << 8) + '9';
    169         m_state.context.gpr.__r10 = ('r' << 8) + 'a';
    170         m_state.context.gpr.__r11 = ('r' << 8) + 'b';
    171         m_state.context.gpr.__r12 = ('r' << 8) + 'c';
    172         m_state.context.gpr.__r13 = ('r' << 8) + 'd';
    173         m_state.context.gpr.__r14 = ('r' << 8) + 'e';
    174         m_state.context.gpr.__r15 = ('r' << 8) + 'f';
    175         m_state.context.gpr.__rip = ('i' << 8) + 'p';
    176         m_state.context.gpr.__rflags = ('f' << 8) + 'l';
    177         m_state.context.gpr.__cs = ('c' << 8) + 's';
    178         m_state.context.gpr.__fs = ('f' << 8) + 's';
    179         m_state.context.gpr.__gs = ('g' << 8) + 's';
    180         m_state.SetError(e_regSetGPR, Read, 0);
    181 #else
    182         mach_msg_type_number_t count = e_regSetWordSizeGPR;
    183         m_state.SetError(e_regSetGPR, Read, ::thread_get_state(m_thread->MachPortNumber(), __x86_64_THREAD_STATE, (thread_state_t)&m_state.context.gpr, &count));
    184         DNBLogThreadedIf (LOG_THREAD, "::thread_get_state (0x%4.4x, %u, &gpr, %u) => 0x%8.8x"
    185                           "\n\trax = %16.16llx rbx = %16.16llx rcx = %16.16llx rdx = %16.16llx"
    186                           "\n\trdi = %16.16llx rsi = %16.16llx rbp = %16.16llx rsp = %16.16llx"
    187                           "\n\t r8 = %16.16llx  r9 = %16.16llx r10 = %16.16llx r11 = %16.16llx"
    188                           "\n\tr12 = %16.16llx r13 = %16.16llx r14 = %16.16llx r15 = %16.16llx"
    189                           "\n\trip = %16.16llx"
    190                           "\n\tflg = %16.16llx  cs = %16.16llx  fs = %16.16llx  gs = %16.16llx",
    191                           m_thread->MachPortNumber(), x86_THREAD_STATE64, x86_THREAD_STATE64_COUNT,
    192                           m_state.GetError(e_regSetGPR, Read),
    193                           m_state.context.gpr.__rax,m_state.context.gpr.__rbx,m_state.context.gpr.__rcx,
    194                           m_state.context.gpr.__rdx,m_state.context.gpr.__rdi,m_state.context.gpr.__rsi,
    195                           m_state.context.gpr.__rbp,m_state.context.gpr.__rsp,m_state.context.gpr.__r8,
    196                           m_state.context.gpr.__r9, m_state.context.gpr.__r10,m_state.context.gpr.__r11,
    197                           m_state.context.gpr.__r12,m_state.context.gpr.__r13,m_state.context.gpr.__r14,
    198                           m_state.context.gpr.__r15,m_state.context.gpr.__rip,m_state.context.gpr.__rflags,
    199                           m_state.context.gpr.__cs,m_state.context.gpr.__fs, m_state.context.gpr.__gs);
    200 
    201         //      DNBLogThreadedIf (LOG_THREAD, "thread_get_state(0x%4.4x, %u, &gpr, %u) => 0x%8.8x"
    202         //                        "\n\trax = %16.16llx"
    203         //                        "\n\trbx = %16.16llx"
    204         //                        "\n\trcx = %16.16llx"
    205         //                        "\n\trdx = %16.16llx"
    206         //                        "\n\trdi = %16.16llx"
    207         //                        "\n\trsi = %16.16llx"
    208         //                        "\n\trbp = %16.16llx"
    209         //                        "\n\trsp = %16.16llx"
    210         //                        "\n\t r8 = %16.16llx"
    211         //                        "\n\t r9 = %16.16llx"
    212         //                        "\n\tr10 = %16.16llx"
    213         //                        "\n\tr11 = %16.16llx"
    214         //                        "\n\tr12 = %16.16llx"
    215         //                        "\n\tr13 = %16.16llx"
    216         //                        "\n\tr14 = %16.16llx"
    217         //                        "\n\tr15 = %16.16llx"
    218         //                        "\n\trip = %16.16llx"
    219         //                        "\n\tflg = %16.16llx"
    220         //                        "\n\t cs = %16.16llx"
    221         //                        "\n\t fs = %16.16llx"
    222         //                        "\n\t gs = %16.16llx",
    223         //                        m_thread->MachPortNumber(),
    224         //                        x86_THREAD_STATE64,
    225         //                        x86_THREAD_STATE64_COUNT,
    226         //                        m_state.GetError(e_regSetGPR, Read),
    227         //                        m_state.context.gpr.__rax,
    228         //                        m_state.context.gpr.__rbx,
    229         //                        m_state.context.gpr.__rcx,
    230         //                        m_state.context.gpr.__rdx,
    231         //                        m_state.context.gpr.__rdi,
    232         //                        m_state.context.gpr.__rsi,
    233         //                        m_state.context.gpr.__rbp,
    234         //                        m_state.context.gpr.__rsp,
    235         //                        m_state.context.gpr.__r8,
    236         //                        m_state.context.gpr.__r9,
    237         //                        m_state.context.gpr.__r10,
    238         //                        m_state.context.gpr.__r11,
    239         //                        m_state.context.gpr.__r12,
    240         //                        m_state.context.gpr.__r13,
    241         //                        m_state.context.gpr.__r14,
    242         //                        m_state.context.gpr.__r15,
    243         //                        m_state.context.gpr.__rip,
    244         //                        m_state.context.gpr.__rflags,
    245         //                        m_state.context.gpr.__cs,
    246         //                        m_state.context.gpr.__fs,
    247         //                        m_state.context.gpr.__gs);
    248 #endif
    249     }
    250     return m_state.GetError(e_regSetGPR, Read);
    251 }
    252 
    253 // Uncomment the value below to verify the values in the debugger.
    254 //#define DEBUG_FPU_REGS 1    // DO NOT CHECK IN WITH THIS DEFINE ENABLED
    255 
    256 kern_return_t
    257 DNBArchImplX86_64::GetFPUState(bool force)
    258 {
    259     if (force || m_state.GetError(e_regSetFPU, Read))
    260     {
    261         if (DEBUG_FPU_REGS) {
    262             if (CPUHasAVX() || FORCE_AVX_REGS)
    263             {
    264                 m_state.context.fpu.avx.__fpu_reserved[0] = -1;
    265                 m_state.context.fpu.avx.__fpu_reserved[1] = -1;
    266                 *(uint16_t *)&(m_state.context.fpu.avx.__fpu_fcw) = 0x1234;
    267                 *(uint16_t *)&(m_state.context.fpu.avx.__fpu_fsw) = 0x5678;
    268                 m_state.context.fpu.avx.__fpu_ftw = 1;
    269                 m_state.context.fpu.avx.__fpu_rsrv1 = UINT8_MAX;
    270                 m_state.context.fpu.avx.__fpu_fop = 2;
    271                 m_state.context.fpu.avx.__fpu_ip = 3;
    272                 m_state.context.fpu.avx.__fpu_cs = 4;
    273                 m_state.context.fpu.avx.__fpu_rsrv2 = 5;
    274                 m_state.context.fpu.avx.__fpu_dp = 6;
    275                 m_state.context.fpu.avx.__fpu_ds = 7;
    276                 m_state.context.fpu.avx.__fpu_rsrv3 = UINT16_MAX;
    277                 m_state.context.fpu.avx.__fpu_mxcsr = 8;
    278                 m_state.context.fpu.avx.__fpu_mxcsrmask = 9;
    279                 int i;
    280                 for (i=0; i<16; ++i)
    281                 {
    282                     if (i<10)
    283                     {
    284                         m_state.context.fpu.avx.__fpu_stmm0.__mmst_reg[i] = 'a';
    285                         m_state.context.fpu.avx.__fpu_stmm1.__mmst_reg[i] = 'b';
    286                         m_state.context.fpu.avx.__fpu_stmm2.__mmst_reg[i] = 'c';
    287                         m_state.context.fpu.avx.__fpu_stmm3.__mmst_reg[i] = 'd';
    288                         m_state.context.fpu.avx.__fpu_stmm4.__mmst_reg[i] = 'e';
    289                         m_state.context.fpu.avx.__fpu_stmm5.__mmst_reg[i] = 'f';
    290                         m_state.context.fpu.avx.__fpu_stmm6.__mmst_reg[i] = 'g';
    291                         m_state.context.fpu.avx.__fpu_stmm7.__mmst_reg[i] = 'h';
    292                     }
    293                     else
    294                     {
    295                         m_state.context.fpu.avx.__fpu_stmm0.__mmst_reg[i] = INT8_MIN;
    296                         m_state.context.fpu.avx.__fpu_stmm1.__mmst_reg[i] = INT8_MIN;
    297                         m_state.context.fpu.avx.__fpu_stmm2.__mmst_reg[i] = INT8_MIN;
    298                         m_state.context.fpu.avx.__fpu_stmm3.__mmst_reg[i] = INT8_MIN;
    299                         m_state.context.fpu.avx.__fpu_stmm4.__mmst_reg[i] = INT8_MIN;
    300                         m_state.context.fpu.avx.__fpu_stmm5.__mmst_reg[i] = INT8_MIN;
    301                         m_state.context.fpu.avx.__fpu_stmm6.__mmst_reg[i] = INT8_MIN;
    302                         m_state.context.fpu.avx.__fpu_stmm7.__mmst_reg[i] = INT8_MIN;
    303                     }
    304 
    305                     m_state.context.fpu.avx.__fpu_xmm0.__xmm_reg[i] = '0';
    306                     m_state.context.fpu.avx.__fpu_xmm1.__xmm_reg[i] = '1';
    307                     m_state.context.fpu.avx.__fpu_xmm2.__xmm_reg[i] = '2';
    308                     m_state.context.fpu.avx.__fpu_xmm3.__xmm_reg[i] = '3';
    309                     m_state.context.fpu.avx.__fpu_xmm4.__xmm_reg[i] = '4';
    310                     m_state.context.fpu.avx.__fpu_xmm5.__xmm_reg[i] = '5';
    311                     m_state.context.fpu.avx.__fpu_xmm6.__xmm_reg[i] = '6';
    312                     m_state.context.fpu.avx.__fpu_xmm7.__xmm_reg[i] = '7';
    313                     m_state.context.fpu.avx.__fpu_xmm8.__xmm_reg[i] = '8';
    314                     m_state.context.fpu.avx.__fpu_xmm9.__xmm_reg[i] = '9';
    315                     m_state.context.fpu.avx.__fpu_xmm10.__xmm_reg[i] = 'A';
    316                     m_state.context.fpu.avx.__fpu_xmm11.__xmm_reg[i] = 'B';
    317                     m_state.context.fpu.avx.__fpu_xmm12.__xmm_reg[i] = 'C';
    318                     m_state.context.fpu.avx.__fpu_xmm13.__xmm_reg[i] = 'D';
    319                     m_state.context.fpu.avx.__fpu_xmm14.__xmm_reg[i] = 'E';
    320                     m_state.context.fpu.avx.__fpu_xmm15.__xmm_reg[i] = 'F';
    321 
    322                     m_state.context.fpu.avx.__fpu_ymmh0.__xmm_reg[i] = '0';
    323                     m_state.context.fpu.avx.__fpu_ymmh1.__xmm_reg[i] = '1';
    324                     m_state.context.fpu.avx.__fpu_ymmh2.__xmm_reg[i] = '2';
    325                     m_state.context.fpu.avx.__fpu_ymmh3.__xmm_reg[i] = '3';
    326                     m_state.context.fpu.avx.__fpu_ymmh4.__xmm_reg[i] = '4';
    327                     m_state.context.fpu.avx.__fpu_ymmh5.__xmm_reg[i] = '5';
    328                     m_state.context.fpu.avx.__fpu_ymmh6.__xmm_reg[i] = '6';
    329                     m_state.context.fpu.avx.__fpu_ymmh7.__xmm_reg[i] = '7';
    330                     m_state.context.fpu.avx.__fpu_ymmh8.__xmm_reg[i] = '8';
    331                     m_state.context.fpu.avx.__fpu_ymmh9.__xmm_reg[i] = '9';
    332                     m_state.context.fpu.avx.__fpu_ymmh10.__xmm_reg[i] = 'A';
    333                     m_state.context.fpu.avx.__fpu_ymmh11.__xmm_reg[i] = 'B';
    334                     m_state.context.fpu.avx.__fpu_ymmh12.__xmm_reg[i] = 'C';
    335                     m_state.context.fpu.avx.__fpu_ymmh13.__xmm_reg[i] = 'D';
    336                     m_state.context.fpu.avx.__fpu_ymmh14.__xmm_reg[i] = 'E';
    337                     m_state.context.fpu.avx.__fpu_ymmh15.__xmm_reg[i] = 'F';
    338                 }
    339                 for (i=0; i<sizeof(m_state.context.fpu.avx.__fpu_rsrv4); ++i)
    340                     m_state.context.fpu.avx.__fpu_rsrv4[i] = INT8_MIN;
    341                 m_state.context.fpu.avx.__fpu_reserved1 = -1;
    342                 for (i=0; i<sizeof(m_state.context.fpu.avx.__avx_reserved1); ++i)
    343                     m_state.context.fpu.avx.__avx_reserved1[i] = INT8_MIN;
    344                 m_state.SetError(e_regSetFPU, Read, 0);
    345             }
    346             else
    347             {
    348                 m_state.context.fpu.no_avx.__fpu_reserved[0] = -1;
    349                 m_state.context.fpu.no_avx.__fpu_reserved[1] = -1;
    350                 *(uint16_t *)&(m_state.context.fpu.no_avx.__fpu_fcw) = 0x1234;
    351                 *(uint16_t *)&(m_state.context.fpu.no_avx.__fpu_fsw) = 0x5678;
    352                 m_state.context.fpu.no_avx.__fpu_ftw = 1;
    353                 m_state.context.fpu.no_avx.__fpu_rsrv1 = UINT8_MAX;
    354                 m_state.context.fpu.no_avx.__fpu_fop = 2;
    355                 m_state.context.fpu.no_avx.__fpu_ip = 3;
    356                 m_state.context.fpu.no_avx.__fpu_cs = 4;
    357                 m_state.context.fpu.no_avx.__fpu_rsrv2 = 5;
    358                 m_state.context.fpu.no_avx.__fpu_dp = 6;
    359                 m_state.context.fpu.no_avx.__fpu_ds = 7;
    360                 m_state.context.fpu.no_avx.__fpu_rsrv3 = UINT16_MAX;
    361                 m_state.context.fpu.no_avx.__fpu_mxcsr = 8;
    362                 m_state.context.fpu.no_avx.__fpu_mxcsrmask = 9;
    363                 int i;
    364                 for (i=0; i<16; ++i)
    365                 {
    366                     if (i<10)
    367                     {
    368                         m_state.context.fpu.no_avx.__fpu_stmm0.__mmst_reg[i] = 'a';
    369                         m_state.context.fpu.no_avx.__fpu_stmm1.__mmst_reg[i] = 'b';
    370                         m_state.context.fpu.no_avx.__fpu_stmm2.__mmst_reg[i] = 'c';
    371                         m_state.context.fpu.no_avx.__fpu_stmm3.__mmst_reg[i] = 'd';
    372                         m_state.context.fpu.no_avx.__fpu_stmm4.__mmst_reg[i] = 'e';
    373                         m_state.context.fpu.no_avx.__fpu_stmm5.__mmst_reg[i] = 'f';
    374                         m_state.context.fpu.no_avx.__fpu_stmm6.__mmst_reg[i] = 'g';
    375                         m_state.context.fpu.no_avx.__fpu_stmm7.__mmst_reg[i] = 'h';
    376                     }
    377                     else
    378                     {
    379                         m_state.context.fpu.no_avx.__fpu_stmm0.__mmst_reg[i] = INT8_MIN;
    380                         m_state.context.fpu.no_avx.__fpu_stmm1.__mmst_reg[i] = INT8_MIN;
    381                         m_state.context.fpu.no_avx.__fpu_stmm2.__mmst_reg[i] = INT8_MIN;
    382                         m_state.context.fpu.no_avx.__fpu_stmm3.__mmst_reg[i] = INT8_MIN;
    383                         m_state.context.fpu.no_avx.__fpu_stmm4.__mmst_reg[i] = INT8_MIN;
    384                         m_state.context.fpu.no_avx.__fpu_stmm5.__mmst_reg[i] = INT8_MIN;
    385                         m_state.context.fpu.no_avx.__fpu_stmm6.__mmst_reg[i] = INT8_MIN;
    386                         m_state.context.fpu.no_avx.__fpu_stmm7.__mmst_reg[i] = INT8_MIN;
    387                     }
    388 
    389                     m_state.context.fpu.no_avx.__fpu_xmm0.__xmm_reg[i] = '0';
    390                     m_state.context.fpu.no_avx.__fpu_xmm1.__xmm_reg[i] = '1';
    391                     m_state.context.fpu.no_avx.__fpu_xmm2.__xmm_reg[i] = '2';
    392                     m_state.context.fpu.no_avx.__fpu_xmm3.__xmm_reg[i] = '3';
    393                     m_state.context.fpu.no_avx.__fpu_xmm4.__xmm_reg[i] = '4';
    394                     m_state.context.fpu.no_avx.__fpu_xmm5.__xmm_reg[i] = '5';
    395                     m_state.context.fpu.no_avx.__fpu_xmm6.__xmm_reg[i] = '6';
    396                     m_state.context.fpu.no_avx.__fpu_xmm7.__xmm_reg[i] = '7';
    397                     m_state.context.fpu.no_avx.__fpu_xmm8.__xmm_reg[i] = '8';
    398                     m_state.context.fpu.no_avx.__fpu_xmm9.__xmm_reg[i] = '9';
    399                     m_state.context.fpu.no_avx.__fpu_xmm10.__xmm_reg[i] = 'A';
    400                     m_state.context.fpu.no_avx.__fpu_xmm11.__xmm_reg[i] = 'B';
    401                     m_state.context.fpu.no_avx.__fpu_xmm12.__xmm_reg[i] = 'C';
    402                     m_state.context.fpu.no_avx.__fpu_xmm13.__xmm_reg[i] = 'D';
    403                     m_state.context.fpu.no_avx.__fpu_xmm14.__xmm_reg[i] = 'E';
    404                     m_state.context.fpu.no_avx.__fpu_xmm15.__xmm_reg[i] = 'F';
    405                 }
    406                 for (i=0; i<sizeof(m_state.context.fpu.no_avx.__fpu_rsrv4); ++i)
    407                     m_state.context.fpu.no_avx.__fpu_rsrv4[i] = INT8_MIN;
    408                 m_state.context.fpu.no_avx.__fpu_reserved1 = -1;
    409                 m_state.SetError(e_regSetFPU, Read, 0);
    410             }
    411         }
    412         else
    413         {
    414             if (CPUHasAVX() || FORCE_AVX_REGS)
    415             {
    416                 mach_msg_type_number_t count = e_regSetWordSizeAVX;
    417                 m_state.SetError(e_regSetFPU, Read, ::thread_get_state(m_thread->MachPortNumber(), __x86_64_AVX_STATE, (thread_state_t)&m_state.context.fpu.avx, &count));
    418                 DNBLogThreadedIf (LOG_THREAD, "::thread_get_state (0x%4.4x, %u, &avx, %u (%u passed in) carp) => 0x%8.8x",
    419                                   m_thread->MachPortNumber(), __x86_64_AVX_STATE, (uint32_t)count,
    420                                   e_regSetWordSizeAVX, m_state.GetError(e_regSetFPU, Read));
    421             }
    422             else
    423             {
    424                 mach_msg_type_number_t count = e_regSetWordSizeFPU;
    425                 m_state.SetError(e_regSetFPU, Read, ::thread_get_state(m_thread->MachPortNumber(), __x86_64_FLOAT_STATE, (thread_state_t)&m_state.context.fpu.no_avx, &count));
    426                 DNBLogThreadedIf (LOG_THREAD, "::thread_get_state (0x%4.4x, %u, &fpu, %u (%u passed in) => 0x%8.8x",
    427                                   m_thread->MachPortNumber(), __x86_64_FLOAT_STATE, (uint32_t)count,
    428                                   e_regSetWordSizeFPU, m_state.GetError(e_regSetFPU, Read));
    429             }
    430         }
    431     }
    432     return m_state.GetError(e_regSetFPU, Read);
    433 }
    434 
    435 kern_return_t
    436 DNBArchImplX86_64::GetEXCState(bool force)
    437 {
    438     if (force || m_state.GetError(e_regSetEXC, Read))
    439     {
    440         mach_msg_type_number_t count = e_regSetWordSizeEXC;
    441         m_state.SetError(e_regSetEXC, Read, ::thread_get_state(m_thread->MachPortNumber(), __x86_64_EXCEPTION_STATE, (thread_state_t)&m_state.context.exc, &count));
    442     }
    443     return m_state.GetError(e_regSetEXC, Read);
    444 }
    445 
    446 kern_return_t
    447 DNBArchImplX86_64::SetGPRState()
    448 {
    449     kern_return_t kret = ::thread_abort_safely(m_thread->MachPortNumber());
    450     DNBLogThreadedIf (LOG_THREAD, "thread = 0x%4.4x calling thread_abort_safely (tid) => %u (SetGPRState() for stop_count = %u)", m_thread->MachPortNumber(), kret, m_thread->Process()->StopCount());
    451 
    452     m_state.SetError(e_regSetGPR, Write, ::thread_set_state(m_thread->MachPortNumber(), __x86_64_THREAD_STATE, (thread_state_t)&m_state.context.gpr, e_regSetWordSizeGPR));
    453     DNBLogThreadedIf (LOG_THREAD, "::thread_set_state (0x%4.4x, %u, &gpr, %u) => 0x%8.8x"
    454                       "\n\trax = %16.16llx rbx = %16.16llx rcx = %16.16llx rdx = %16.16llx"
    455                       "\n\trdi = %16.16llx rsi = %16.16llx rbp = %16.16llx rsp = %16.16llx"
    456                       "\n\t r8 = %16.16llx  r9 = %16.16llx r10 = %16.16llx r11 = %16.16llx"
    457                       "\n\tr12 = %16.16llx r13 = %16.16llx r14 = %16.16llx r15 = %16.16llx"
    458                       "\n\trip = %16.16llx"
    459                       "\n\tflg = %16.16llx  cs = %16.16llx  fs = %16.16llx  gs = %16.16llx",
    460                       m_thread->MachPortNumber(), __x86_64_THREAD_STATE, e_regSetWordSizeGPR,
    461                       m_state.GetError(e_regSetGPR, Write),
    462                       m_state.context.gpr.__rax,m_state.context.gpr.__rbx,m_state.context.gpr.__rcx,
    463                       m_state.context.gpr.__rdx,m_state.context.gpr.__rdi,m_state.context.gpr.__rsi,
    464                       m_state.context.gpr.__rbp,m_state.context.gpr.__rsp,m_state.context.gpr.__r8,
    465                       m_state.context.gpr.__r9, m_state.context.gpr.__r10,m_state.context.gpr.__r11,
    466                       m_state.context.gpr.__r12,m_state.context.gpr.__r13,m_state.context.gpr.__r14,
    467                       m_state.context.gpr.__r15,m_state.context.gpr.__rip,m_state.context.gpr.__rflags,
    468                       m_state.context.gpr.__cs, m_state.context.gpr.__fs, m_state.context.gpr.__gs);
    469     return m_state.GetError(e_regSetGPR, Write);
    470 }
    471 
    472 kern_return_t
    473 DNBArchImplX86_64::SetFPUState()
    474 {
    475     if (DEBUG_FPU_REGS)
    476     {
    477         m_state.SetError(e_regSetFPU, Write, 0);
    478         return m_state.GetError(e_regSetFPU, Write);
    479     }
    480     else
    481     {
    482         if (CPUHasAVX() || FORCE_AVX_REGS)
    483         {
    484             m_state.SetError(e_regSetFPU, Write, ::thread_set_state(m_thread->MachPortNumber(), __x86_64_AVX_STATE, (thread_state_t)&m_state.context.fpu.avx, e_regSetWordSizeAVX));
    485             return m_state.GetError(e_regSetFPU, Write);
    486         }
    487         else
    488         {
    489             m_state.SetError(e_regSetFPU, Write, ::thread_set_state(m_thread->MachPortNumber(), __x86_64_FLOAT_STATE, (thread_state_t)&m_state.context.fpu.no_avx, e_regSetWordSizeFPU));
    490             return m_state.GetError(e_regSetFPU, Write);
    491         }
    492     }
    493 }
    494 
    495 kern_return_t
    496 DNBArchImplX86_64::SetEXCState()
    497 {
    498     m_state.SetError(e_regSetEXC, Write, ::thread_set_state(m_thread->MachPortNumber(), __x86_64_EXCEPTION_STATE, (thread_state_t)&m_state.context.exc, e_regSetWordSizeEXC));
    499     return m_state.GetError(e_regSetEXC, Write);
    500 }
    501 
    502 kern_return_t
    503 DNBArchImplX86_64::GetDBGState(bool force)
    504 {
    505     if (force || m_state.GetError(e_regSetDBG, Read))
    506     {
    507         mach_msg_type_number_t count = e_regSetWordSizeDBG;
    508         m_state.SetError(e_regSetDBG, Read, ::thread_get_state(m_thread->MachPortNumber(), __x86_64_DEBUG_STATE, (thread_state_t)&m_state.context.dbg, &count));
    509     }
    510     return m_state.GetError(e_regSetDBG, Read);
    511 }
    512 
    513 kern_return_t
    514 DNBArchImplX86_64::SetDBGState(bool also_set_on_task)
    515 {
    516     m_state.SetError(e_regSetDBG, Write, ::thread_set_state(m_thread->MachPortNumber(), __x86_64_DEBUG_STATE, (thread_state_t)&m_state.context.dbg, e_regSetWordSizeDBG));
    517     if (also_set_on_task)
    518     {
    519         kern_return_t kret = ::task_set_state(m_thread->Process()->Task().TaskPort(), __x86_64_DEBUG_STATE, (thread_state_t)&m_state.context.dbg, e_regSetWordSizeDBG);
    520         if (kret != KERN_SUCCESS)
    521             DNBLogThreadedIf(LOG_WATCHPOINTS, "DNBArchImplX86_64::SetDBGState failed to set debug control register state: 0x%8.8x.", kret);
    522     }
    523     return m_state.GetError(e_regSetDBG, Write);
    524 }
    525 
    526 void
    527 DNBArchImplX86_64::ThreadWillResume()
    528 {
    529     // Do we need to step this thread? If so, let the mach thread tell us so.
    530     if (m_thread->IsStepping())
    531     {
    532         // This is the primary thread, let the arch do anything it needs
    533         EnableHardwareSingleStep(true);
    534     }
    535 
    536     // Reset the debug status register, if necessary, before we resume.
    537     kern_return_t kret = GetDBGState(false);
    538     DNBLogThreadedIf(LOG_WATCHPOINTS, "DNBArchImplX86_64::ThreadWillResume() GetDBGState() => 0x%8.8x.", kret);
    539     if (kret != KERN_SUCCESS)
    540         return;
    541 
    542     DBG &debug_state = m_state.context.dbg;
    543     bool need_reset = false;
    544     uint32_t i, num = NumSupportedHardwareWatchpoints();
    545     for (i = 0; i < num; ++i)
    546         if (IsWatchpointHit(debug_state, i))
    547             need_reset = true;
    548 
    549     if (need_reset)
    550     {
    551         ClearWatchpointHits(debug_state);
    552         kret = SetDBGState(false);
    553         DNBLogThreadedIf(LOG_WATCHPOINTS, "DNBArchImplX86_64::ThreadWillResume() SetDBGState() => 0x%8.8x.", kret);
    554     }
    555 }
    556 
    557 bool
    558 DNBArchImplX86_64::ThreadDidStop()
    559 {
    560     bool success = true;
    561 
    562     m_state.InvalidateAllRegisterStates();
    563 
    564     // Are we stepping a single instruction?
    565     if (GetGPRState(true) == KERN_SUCCESS)
    566     {
    567         // We are single stepping, was this the primary thread?
    568         if (m_thread->IsStepping())
    569         {
    570             // This was the primary thread, we need to clear the trace
    571             // bit if so.
    572             success = EnableHardwareSingleStep(false) == KERN_SUCCESS;
    573         }
    574         else
    575         {
    576             // The MachThread will automatically restore the suspend count
    577             // in ThreadDidStop(), so we don't need to do anything here if
    578             // we weren't the primary thread the last time
    579         }
    580     }
    581     return success;
    582 }
    583 
    584 bool
    585 DNBArchImplX86_64::NotifyException(MachException::Data& exc)
    586 {
    587     switch (exc.exc_type)
    588     {
    589         case EXC_BAD_ACCESS:
    590             break;
    591         case EXC_BAD_INSTRUCTION:
    592             break;
    593         case EXC_ARITHMETIC:
    594             break;
    595         case EXC_EMULATION:
    596             break;
    597         case EXC_SOFTWARE:
    598             break;
    599         case EXC_BREAKPOINT:
    600             if (exc.exc_data.size() >= 2 && exc.exc_data[0] == 2)
    601             {
    602                 // exc_code = EXC_I386_BPT
    603                 //
    604                 nub_addr_t pc = GetPC(INVALID_NUB_ADDRESS);
    605                 if (pc != INVALID_NUB_ADDRESS && pc > 0)
    606                 {
    607                     pc -= 1;
    608                     // Check for a breakpoint at one byte prior to the current PC value
    609                     // since the PC will be just past the trap.
    610 
    611                     DNBBreakpoint *bp = m_thread->Process()->Breakpoints().FindByAddress(pc);
    612                     if (bp)
    613                     {
    614                         // Backup the PC for i386 since the trap was taken and the PC
    615                         // is at the address following the single byte trap instruction.
    616                         if (m_state.context.gpr.__rip > 0)
    617                         {
    618                             m_state.context.gpr.__rip = pc;
    619                             // Write the new PC back out
    620                             SetGPRState ();
    621                         }
    622                     }
    623                     return true;
    624                 }
    625             }
    626             else if (exc.exc_data.size() >= 2 && exc.exc_data[0] == 1)
    627             {
    628                 // exc_code = EXC_I386_SGL
    629                 //
    630                 // Check whether this corresponds to a watchpoint hit event.
    631                 // If yes, set the exc_sub_code to the data break address.
    632                 nub_addr_t addr = 0;
    633                 uint32_t hw_index = GetHardwareWatchpointHit(addr);
    634                 if (hw_index != INVALID_NUB_HW_INDEX)
    635                 {
    636                     exc.exc_data[1] = addr;
    637                     // Piggyback the hw_index in the exc.data.
    638                     exc.exc_data.push_back(hw_index);
    639                 }
    640 
    641                 return true;
    642             }
    643             break;
    644         case EXC_SYSCALL:
    645             break;
    646         case EXC_MACH_SYSCALL:
    647             break;
    648         case EXC_RPC_ALERT:
    649             break;
    650     }
    651     return false;
    652 }
    653 
    654 uint32_t
    655 DNBArchImplX86_64::NumSupportedHardwareWatchpoints()
    656 {
    657     // Available debug address registers: dr0, dr1, dr2, dr3.
    658     return 4;
    659 }
    660 
    661 static uint32_t
    662 size_and_rw_bits(nub_size_t size, bool read, bool write)
    663 {
    664     uint32_t rw;
    665     if (read) {
    666         rw = 0x3; // READ or READ/WRITE
    667     } else if (write) {
    668         rw = 0x1; // WRITE
    669     } else {
    670         assert(0 && "read and write cannot both be false");
    671     }
    672 
    673     switch (size) {
    674     case 1:
    675         return rw;
    676     case 2:
    677         return (0x1 << 2) | rw;
    678     case 4:
    679         return (0x3 << 2) | rw;
    680     case 8:
    681         return (0x2 << 2) | rw;
    682     default:
    683         assert(0 && "invalid size, must be one of 1, 2, 4, or 8");
    684     }
    685 }
    686 void
    687 DNBArchImplX86_64::SetWatchpoint(DBG &debug_state, uint32_t hw_index, nub_addr_t addr, nub_size_t size, bool read, bool write)
    688 {
    689     // Set both dr7 (debug control register) and dri (debug address register).
    690 
    691     // dr7{7-0} encodes the local/gloabl enable bits:
    692     //  global enable --. .-- local enable
    693     //                  | |
    694     //                  v v
    695     //      dr0 -> bits{1-0}
    696     //      dr1 -> bits{3-2}
    697     //      dr2 -> bits{5-4}
    698     //      dr3 -> bits{7-6}
    699     //
    700     // dr7{31-16} encodes the rw/len bits:
    701     //  b_x+3, b_x+2, b_x+1, b_x
    702     //      where bits{x+1, x} => rw
    703     //            0b00: execute, 0b01: write, 0b11: read-or-write, 0b10: io read-or-write (unused)
    704     //      and bits{x+3, x+2} => len
    705     //            0b00: 1-byte, 0b01: 2-byte, 0b11: 4-byte, 0b10: 8-byte
    706     //
    707     //      dr0 -> bits{19-16}
    708     //      dr1 -> bits{23-20}
    709     //      dr2 -> bits{27-24}
    710     //      dr3 -> bits{31-28}
    711     debug_state.__dr7 |= (1 << (2*hw_index) |
    712                           size_and_rw_bits(size, read, write) << (16+4*hw_index));
    713     switch (hw_index) {
    714     case 0:
    715         debug_state.__dr0 = addr; break;
    716     case 1:
    717         debug_state.__dr1 = addr; break;
    718     case 2:
    719         debug_state.__dr2 = addr; break;
    720     case 3:
    721         debug_state.__dr3 = addr; break;
    722     default:
    723         assert(0 && "invalid hardware register index, must be one of 0, 1, 2, or 3");
    724     }
    725     return;
    726 }
    727 
    728 void
    729 DNBArchImplX86_64::ClearWatchpoint(DBG &debug_state, uint32_t hw_index)
    730 {
    731     debug_state.__dr7 &= ~(3 << (2*hw_index));
    732     switch (hw_index) {
    733     case 0:
    734         debug_state.__dr0 = 0; break;
    735     case 1:
    736         debug_state.__dr1 = 0; break;
    737     case 2:
    738         debug_state.__dr2 = 0; break;
    739     case 3:
    740         debug_state.__dr3 = 0; break;
    741     default:
    742         assert(0 && "invalid hardware register index, must be one of 0, 1, 2, or 3");
    743     }
    744     return;
    745 }
    746 
    747 bool
    748 DNBArchImplX86_64::IsWatchpointVacant(const DBG &debug_state, uint32_t hw_index)
    749 {
    750     // Check dr7 (debug control register) for local/global enable bits:
    751     //  global enable --. .-- local enable
    752     //                  | |
    753     //                  v v
    754     //      dr0 -> bits{1-0}
    755     //      dr1 -> bits{3-2}
    756     //      dr2 -> bits{5-4}
    757     //      dr3 -> bits{7-6}
    758     return (debug_state.__dr7 & (3 << (2*hw_index))) == 0;
    759 }
    760 
    761 // Resets local copy of debug status register to wait for the next debug excpetion.
    762 void
    763 DNBArchImplX86_64::ClearWatchpointHits(DBG &debug_state)
    764 {
    765     // See also IsWatchpointHit().
    766     debug_state.__dr6 = 0;
    767     return;
    768 }
    769 
    770 bool
    771 DNBArchImplX86_64::IsWatchpointHit(const DBG &debug_state, uint32_t hw_index)
    772 {
    773     // Check dr6 (debug status register) whether a watchpoint hits:
    774     //          is watchpoint hit?
    775     //                  |
    776     //                  v
    777     //      dr0 -> bits{0}
    778     //      dr1 -> bits{1}
    779     //      dr2 -> bits{2}
    780     //      dr3 -> bits{3}
    781     return (debug_state.__dr6 & (1 << hw_index));
    782 }
    783 
    784 nub_addr_t
    785 DNBArchImplX86_64::GetWatchAddress(const DBG &debug_state, uint32_t hw_index)
    786 {
    787     switch (hw_index) {
    788     case 0:
    789         return debug_state.__dr0;
    790     case 1:
    791         return debug_state.__dr1;
    792     case 2:
    793         return debug_state.__dr2;
    794     case 3:
    795         return debug_state.__dr3;
    796     default:
    797         assert(0 && "invalid hardware register index, must be one of 0, 1, 2, or 3");
    798     }
    799 }
    800 
    801 bool
    802 DNBArchImplX86_64::StartTransForHWP()
    803 {
    804     if (m_2pc_trans_state != Trans_Done && m_2pc_trans_state != Trans_Rolled_Back)
    805         DNBLogError ("%s inconsistent state detected, expected %d or %d, got: %d", __FUNCTION__, Trans_Done, Trans_Rolled_Back, m_2pc_trans_state);
    806     m_2pc_dbg_checkpoint = m_state.context.dbg;
    807     m_2pc_trans_state = Trans_Pending;
    808     return true;
    809 }
    810 bool
    811 DNBArchImplX86_64::RollbackTransForHWP()
    812 {
    813     m_state.context.dbg = m_2pc_dbg_checkpoint;
    814     if (m_2pc_trans_state != Trans_Pending)
    815         DNBLogError ("%s inconsistent state detected, expected %d, got: %d", __FUNCTION__, Trans_Pending, m_2pc_trans_state);
    816     m_2pc_trans_state = Trans_Rolled_Back;
    817     kern_return_t kret = SetDBGState(false);
    818     DNBLogThreadedIf(LOG_WATCHPOINTS, "DNBArchImplX86_64::RollbackTransForHWP() SetDBGState() => 0x%8.8x.", kret);
    819 
    820     if (kret == KERN_SUCCESS)
    821         return true;
    822     else
    823         return false;
    824 }
    825 bool
    826 DNBArchImplX86_64::FinishTransForHWP()
    827 {
    828     m_2pc_trans_state = Trans_Done;
    829     return true;
    830 }
    831 DNBArchImplX86_64::DBG
    832 DNBArchImplX86_64::GetDBGCheckpoint()
    833 {
    834     return m_2pc_dbg_checkpoint;
    835 }
    836 
    837 uint32_t
    838 DNBArchImplX86_64::EnableHardwareWatchpoint (nub_addr_t addr, nub_size_t size, bool read, bool write, bool also_set_on_task)
    839 {
    840     DNBLogThreadedIf(LOG_WATCHPOINTS, "DNBArchImplX86_64::EnableHardwareWatchpoint(addr = 0x%llx, size = %llu, read = %u, write = %u)", (uint64_t)addr, (uint64_t)size, read, write);
    841 
    842     const uint32_t num_hw_watchpoints = NumSupportedHardwareWatchpoints();
    843 
    844     // Can only watch 1, 2, 4, or 8 bytes.
    845     if (!(size == 1 || size == 2 || size == 4 || size == 8))
    846         return INVALID_NUB_HW_INDEX;
    847 
    848     // We must watch for either read or write
    849     if (read == false && write == false)
    850         return INVALID_NUB_HW_INDEX;
    851 
    852     // Read the debug state
    853     kern_return_t kret = GetDBGState(false);
    854 
    855     if (kret == KERN_SUCCESS)
    856     {
    857         // Check to make sure we have the needed hardware support
    858         uint32_t i = 0;
    859 
    860         DBG &debug_state = m_state.context.dbg;
    861         for (i = 0; i < num_hw_watchpoints; ++i)
    862         {
    863             if (IsWatchpointVacant(debug_state, i))
    864                 break;
    865         }
    866 
    867         // See if we found an available hw breakpoint slot above
    868         if (i < num_hw_watchpoints)
    869         {
    870             StartTransForHWP();
    871 
    872             // Modify our local copy of the debug state, first.
    873             SetWatchpoint(debug_state, i, addr, size, read, write);
    874             // Now set the watch point in the inferior.
    875             kret = SetDBGState(also_set_on_task);
    876             DNBLogThreadedIf(LOG_WATCHPOINTS, "DNBArchImplX86_64::EnableHardwareWatchpoint() SetDBGState() => 0x%8.8x.", kret);
    877 
    878             if (kret == KERN_SUCCESS)
    879                 return i;
    880             else // Revert to the previous debug state voluntarily.  The transaction coordinator knows that we have failed.
    881                 m_state.context.dbg = GetDBGCheckpoint();
    882         }
    883         else
    884         {
    885             DNBLogThreadedIf(LOG_WATCHPOINTS, "DNBArchImplX86_64::EnableHardwareWatchpoint(): All hardware resources (%u) are in use.", num_hw_watchpoints);
    886         }
    887     }
    888     return INVALID_NUB_HW_INDEX;
    889 }
    890 
    891 bool
    892 DNBArchImplX86_64::DisableHardwareWatchpoint (uint32_t hw_index, bool also_set_on_task)
    893 {
    894     kern_return_t kret = GetDBGState(false);
    895 
    896     const uint32_t num_hw_points = NumSupportedHardwareWatchpoints();
    897     if (kret == KERN_SUCCESS)
    898     {
    899         DBG &debug_state = m_state.context.dbg;
    900         if (hw_index < num_hw_points && !IsWatchpointVacant(debug_state, hw_index))
    901         {
    902             StartTransForHWP();
    903 
    904             // Modify our local copy of the debug state, first.
    905             ClearWatchpoint(debug_state, hw_index);
    906             // Now disable the watch point in the inferior.
    907             kret = SetDBGState(also_set_on_task);
    908             DNBLogThreadedIf(LOG_WATCHPOINTS, "DNBArchImplX86_64::DisableHardwareWatchpoint( %u )",
    909                              hw_index);
    910 
    911             if (kret == KERN_SUCCESS)
    912                 return true;
    913             else // Revert to the previous debug state voluntarily.  The transaction coordinator knows that we have failed.
    914                 m_state.context.dbg = GetDBGCheckpoint();
    915         }
    916     }
    917     return false;
    918 }
    919 
    920 // Iterate through the debug status register; return the index of the first hit.
    921 uint32_t
    922 DNBArchImplX86_64::GetHardwareWatchpointHit(nub_addr_t &addr)
    923 {
    924     // Read the debug state
    925     kern_return_t kret = GetDBGState(true);
    926     DNBLogThreadedIf(LOG_WATCHPOINTS, "DNBArchImplX86_64::GetHardwareWatchpointHit() GetDBGState() => 0x%8.8x.", kret);
    927     if (kret == KERN_SUCCESS)
    928     {
    929         DBG &debug_state = m_state.context.dbg;
    930         uint32_t i, num = NumSupportedHardwareWatchpoints();
    931         for (i = 0; i < num; ++i)
    932         {
    933             if (IsWatchpointHit(debug_state, i))
    934             {
    935                 addr = GetWatchAddress(debug_state, i);
    936                 DNBLogThreadedIf(LOG_WATCHPOINTS,
    937                                  "DNBArchImplX86_64::GetHardwareWatchpointHit() found => %u (addr = 0x%llx).",
    938                                  i,
    939                                  (uint64_t)addr);
    940                 return i;
    941             }
    942         }
    943     }
    944     return INVALID_NUB_HW_INDEX;
    945 }
    946 
    947 // Set the single step bit in the processor status register.
    948 kern_return_t
    949 DNBArchImplX86_64::EnableHardwareSingleStep (bool enable)
    950 {
    951     if (GetGPRState(false) == KERN_SUCCESS)
    952     {
    953         const uint32_t trace_bit = 0x100u;
    954         if (enable)
    955             m_state.context.gpr.__rflags |= trace_bit;
    956         else
    957             m_state.context.gpr.__rflags &= ~trace_bit;
    958         return SetGPRState();
    959     }
    960     return m_state.GetError(e_regSetGPR, Read);
    961 }
    962 
    963 
    964 //----------------------------------------------------------------------
    965 // Register information defintions
    966 //----------------------------------------------------------------------
    967 
    968 enum
    969 {
    970     gpr_rax = 0,
    971     gpr_rbx,
    972     gpr_rcx,
    973     gpr_rdx,
    974     gpr_rdi,
    975     gpr_rsi,
    976     gpr_rbp,
    977     gpr_rsp,
    978     gpr_r8,
    979     gpr_r9,
    980     gpr_r10,
    981     gpr_r11,
    982     gpr_r12,
    983     gpr_r13,
    984     gpr_r14,
    985     gpr_r15,
    986     gpr_rip,
    987     gpr_rflags,
    988     gpr_cs,
    989     gpr_fs,
    990     gpr_gs,
    991     gpr_eax,
    992     gpr_ebx,
    993     gpr_ecx,
    994     gpr_edx,
    995     gpr_edi,
    996     gpr_esi,
    997     gpr_ebp,
    998     gpr_esp,
    999     gpr_r8d,    // Low 32 bits or r8
   1000     gpr_r9d,    // Low 32 bits or r9
   1001     gpr_r10d,   // Low 32 bits or r10
   1002     gpr_r11d,   // Low 32 bits or r11
   1003     gpr_r12d,   // Low 32 bits or r12
   1004     gpr_r13d,   // Low 32 bits or r13
   1005     gpr_r14d,   // Low 32 bits or r14
   1006     gpr_r15d,   // Low 32 bits or r15
   1007     gpr_ax ,
   1008     gpr_bx ,
   1009     gpr_cx ,
   1010     gpr_dx ,
   1011     gpr_di ,
   1012     gpr_si ,
   1013     gpr_bp ,
   1014     gpr_sp ,
   1015     gpr_r8w,    // Low 16 bits or r8
   1016     gpr_r9w,    // Low 16 bits or r9
   1017     gpr_r10w,   // Low 16 bits or r10
   1018     gpr_r11w,   // Low 16 bits or r11
   1019     gpr_r12w,   // Low 16 bits or r12
   1020     gpr_r13w,   // Low 16 bits or r13
   1021     gpr_r14w,   // Low 16 bits or r14
   1022     gpr_r15w,   // Low 16 bits or r15
   1023     gpr_ah ,
   1024     gpr_bh ,
   1025     gpr_ch ,
   1026     gpr_dh ,
   1027     gpr_al ,
   1028     gpr_bl ,
   1029     gpr_cl ,
   1030     gpr_dl ,
   1031     gpr_dil,
   1032     gpr_sil,
   1033     gpr_bpl,
   1034     gpr_spl,
   1035     gpr_r8l,    // Low 8 bits or r8
   1036     gpr_r9l,    // Low 8 bits or r9
   1037     gpr_r10l,   // Low 8 bits or r10
   1038     gpr_r11l,   // Low 8 bits or r11
   1039     gpr_r12l,   // Low 8 bits or r12
   1040     gpr_r13l,   // Low 8 bits or r13
   1041     gpr_r14l,   // Low 8 bits or r14
   1042     gpr_r15l,   // Low 8 bits or r15
   1043     k_num_gpr_regs
   1044 };
   1045 
   1046 enum {
   1047     fpu_fcw,
   1048     fpu_fsw,
   1049     fpu_ftw,
   1050     fpu_fop,
   1051     fpu_ip,
   1052     fpu_cs,
   1053     fpu_dp,
   1054     fpu_ds,
   1055     fpu_mxcsr,
   1056     fpu_mxcsrmask,
   1057     fpu_stmm0,
   1058     fpu_stmm1,
   1059     fpu_stmm2,
   1060     fpu_stmm3,
   1061     fpu_stmm4,
   1062     fpu_stmm5,
   1063     fpu_stmm6,
   1064     fpu_stmm7,
   1065     fpu_xmm0,
   1066     fpu_xmm1,
   1067     fpu_xmm2,
   1068     fpu_xmm3,
   1069     fpu_xmm4,
   1070     fpu_xmm5,
   1071     fpu_xmm6,
   1072     fpu_xmm7,
   1073     fpu_xmm8,
   1074     fpu_xmm9,
   1075     fpu_xmm10,
   1076     fpu_xmm11,
   1077     fpu_xmm12,
   1078     fpu_xmm13,
   1079     fpu_xmm14,
   1080     fpu_xmm15,
   1081     fpu_ymm0,
   1082     fpu_ymm1,
   1083     fpu_ymm2,
   1084     fpu_ymm3,
   1085     fpu_ymm4,
   1086     fpu_ymm5,
   1087     fpu_ymm6,
   1088     fpu_ymm7,
   1089     fpu_ymm8,
   1090     fpu_ymm9,
   1091     fpu_ymm10,
   1092     fpu_ymm11,
   1093     fpu_ymm12,
   1094     fpu_ymm13,
   1095     fpu_ymm14,
   1096     fpu_ymm15,
   1097     k_num_fpu_regs,
   1098 
   1099     // Aliases
   1100     fpu_fctrl = fpu_fcw,
   1101     fpu_fstat = fpu_fsw,
   1102     fpu_ftag  = fpu_ftw,
   1103     fpu_fiseg = fpu_cs,
   1104     fpu_fioff = fpu_ip,
   1105     fpu_foseg = fpu_ds,
   1106     fpu_fooff = fpu_dp
   1107 };
   1108 
   1109 enum {
   1110     exc_trapno,
   1111     exc_err,
   1112     exc_faultvaddr,
   1113     k_num_exc_regs,
   1114 };
   1115 
   1116 
   1117 enum gcc_dwarf_regnums
   1118 {
   1119     gcc_dwarf_rax = 0,
   1120     gcc_dwarf_rdx = 1,
   1121     gcc_dwarf_rcx = 2,
   1122     gcc_dwarf_rbx = 3,
   1123     gcc_dwarf_rsi = 4,
   1124     gcc_dwarf_rdi = 5,
   1125     gcc_dwarf_rbp = 6,
   1126     gcc_dwarf_rsp = 7,
   1127     gcc_dwarf_r8,
   1128     gcc_dwarf_r9,
   1129     gcc_dwarf_r10,
   1130     gcc_dwarf_r11,
   1131     gcc_dwarf_r12,
   1132     gcc_dwarf_r13,
   1133     gcc_dwarf_r14,
   1134     gcc_dwarf_r15,
   1135     gcc_dwarf_rip,
   1136     gcc_dwarf_xmm0,
   1137     gcc_dwarf_xmm1,
   1138     gcc_dwarf_xmm2,
   1139     gcc_dwarf_xmm3,
   1140     gcc_dwarf_xmm4,
   1141     gcc_dwarf_xmm5,
   1142     gcc_dwarf_xmm6,
   1143     gcc_dwarf_xmm7,
   1144     gcc_dwarf_xmm8,
   1145     gcc_dwarf_xmm9,
   1146     gcc_dwarf_xmm10,
   1147     gcc_dwarf_xmm11,
   1148     gcc_dwarf_xmm12,
   1149     gcc_dwarf_xmm13,
   1150     gcc_dwarf_xmm14,
   1151     gcc_dwarf_xmm15,
   1152     gcc_dwarf_stmm0,
   1153     gcc_dwarf_stmm1,
   1154     gcc_dwarf_stmm2,
   1155     gcc_dwarf_stmm3,
   1156     gcc_dwarf_stmm4,
   1157     gcc_dwarf_stmm5,
   1158     gcc_dwarf_stmm6,
   1159     gcc_dwarf_stmm7,
   1160     gcc_dwarf_ymm0 = gcc_dwarf_xmm0,
   1161     gcc_dwarf_ymm1 = gcc_dwarf_xmm1,
   1162     gcc_dwarf_ymm2 = gcc_dwarf_xmm2,
   1163     gcc_dwarf_ymm3 = gcc_dwarf_xmm3,
   1164     gcc_dwarf_ymm4 = gcc_dwarf_xmm4,
   1165     gcc_dwarf_ymm5 = gcc_dwarf_xmm5,
   1166     gcc_dwarf_ymm6 = gcc_dwarf_xmm6,
   1167     gcc_dwarf_ymm7 = gcc_dwarf_xmm7,
   1168     gcc_dwarf_ymm8 = gcc_dwarf_xmm8,
   1169     gcc_dwarf_ymm9 = gcc_dwarf_xmm9,
   1170     gcc_dwarf_ymm10 = gcc_dwarf_xmm10,
   1171     gcc_dwarf_ymm11 = gcc_dwarf_xmm11,
   1172     gcc_dwarf_ymm12 = gcc_dwarf_xmm12,
   1173     gcc_dwarf_ymm13 = gcc_dwarf_xmm13,
   1174     gcc_dwarf_ymm14 = gcc_dwarf_xmm14,
   1175     gcc_dwarf_ymm15 = gcc_dwarf_xmm15
   1176 };
   1177 
   1178 enum gdb_regnums
   1179 {
   1180     gdb_rax     =   0,
   1181     gdb_rbx     =   1,
   1182     gdb_rcx     =   2,
   1183     gdb_rdx     =   3,
   1184     gdb_rsi     =   4,
   1185     gdb_rdi     =   5,
   1186     gdb_rbp     =   6,
   1187     gdb_rsp     =   7,
   1188     gdb_r8      =   8,
   1189     gdb_r9      =   9,
   1190     gdb_r10     =  10,
   1191     gdb_r11     =  11,
   1192     gdb_r12     =  12,
   1193     gdb_r13     =  13,
   1194     gdb_r14     =  14,
   1195     gdb_r15     =  15,
   1196     gdb_rip     =  16,
   1197     gdb_rflags  =  17,
   1198     gdb_cs      =  18,
   1199     gdb_ss      =  19,
   1200     gdb_ds      =  20,
   1201     gdb_es      =  21,
   1202     gdb_fs      =  22,
   1203     gdb_gs      =  23,
   1204     gdb_stmm0   =  24,
   1205     gdb_stmm1   =  25,
   1206     gdb_stmm2   =  26,
   1207     gdb_stmm3   =  27,
   1208     gdb_stmm4   =  28,
   1209     gdb_stmm5   =  29,
   1210     gdb_stmm6   =  30,
   1211     gdb_stmm7   =  31,
   1212     gdb_fctrl   =  32,  gdb_fcw = gdb_fctrl,
   1213     gdb_fstat   =  33,  gdb_fsw = gdb_fstat,
   1214     gdb_ftag    =  34,  gdb_ftw = gdb_ftag,
   1215     gdb_fiseg   =  35,  gdb_fpu_cs  = gdb_fiseg,
   1216     gdb_fioff   =  36,  gdb_ip  = gdb_fioff,
   1217     gdb_foseg   =  37,  gdb_fpu_ds  = gdb_foseg,
   1218     gdb_fooff   =  38,  gdb_dp  = gdb_fooff,
   1219     gdb_fop     =  39,
   1220     gdb_xmm0    =  40,
   1221     gdb_xmm1    =  41,
   1222     gdb_xmm2    =  42,
   1223     gdb_xmm3    =  43,
   1224     gdb_xmm4    =  44,
   1225     gdb_xmm5    =  45,
   1226     gdb_xmm6    =  46,
   1227     gdb_xmm7    =  47,
   1228     gdb_xmm8    =  48,
   1229     gdb_xmm9    =  49,
   1230     gdb_xmm10   =  50,
   1231     gdb_xmm11   =  51,
   1232     gdb_xmm12   =  52,
   1233     gdb_xmm13   =  53,
   1234     gdb_xmm14   =  54,
   1235     gdb_xmm15   =  55,
   1236     gdb_mxcsr   =  56,
   1237     gdb_ymm0    =  gdb_xmm0,
   1238     gdb_ymm1    =  gdb_xmm1,
   1239     gdb_ymm2    =  gdb_xmm2,
   1240     gdb_ymm3    =  gdb_xmm3,
   1241     gdb_ymm4    =  gdb_xmm4,
   1242     gdb_ymm5    =  gdb_xmm5,
   1243     gdb_ymm6    =  gdb_xmm6,
   1244     gdb_ymm7    =  gdb_xmm7,
   1245     gdb_ymm8    =  gdb_xmm8,
   1246     gdb_ymm9    =  gdb_xmm9,
   1247     gdb_ymm10   =  gdb_xmm10,
   1248     gdb_ymm11   =  gdb_xmm11,
   1249     gdb_ymm12   =  gdb_xmm12,
   1250     gdb_ymm13   =  gdb_xmm13,
   1251     gdb_ymm14   =  gdb_xmm14,
   1252     gdb_ymm15   =  gdb_xmm15
   1253 };
   1254 
   1255 #define GPR_OFFSET(reg) (offsetof (DNBArchImplX86_64::GPR, __##reg))
   1256 #define FPU_OFFSET(reg) (offsetof (DNBArchImplX86_64::FPU, __fpu_##reg) + offsetof (DNBArchImplX86_64::Context, fpu.no_avx))
   1257 #define AVX_OFFSET(reg) (offsetof (DNBArchImplX86_64::AVX, __fpu_##reg) + offsetof (DNBArchImplX86_64::Context, fpu.avx))
   1258 #define EXC_OFFSET(reg) (offsetof (DNBArchImplX86_64::EXC, __##reg)     + offsetof (DNBArchImplX86_64::Context, exc))
   1259 
   1260 // This does not accurately identify the location of ymm0...7 in
   1261 // Context.fpu.avx.  That is because there is a bunch of padding
   1262 // in Context.fpu.avx that we don't need.  Offset macros lay out
   1263 // the register state that Debugserver transmits to the debugger
   1264 // -- not to interpret the thread_get_state info.
   1265 #define AVX_OFFSET_YMM(n)   (AVX_OFFSET(xmm7) + FPU_SIZE_XMM(xmm7) + (32 * n))
   1266 
   1267 #define GPR_SIZE(reg)       (sizeof(((DNBArchImplX86_64::GPR *)NULL)->__##reg))
   1268 #define FPU_SIZE_UINT(reg)  (sizeof(((DNBArchImplX86_64::FPU *)NULL)->__fpu_##reg))
   1269 #define FPU_SIZE_MMST(reg)  (sizeof(((DNBArchImplX86_64::FPU *)NULL)->__fpu_##reg.__mmst_reg))
   1270 #define FPU_SIZE_XMM(reg)   (sizeof(((DNBArchImplX86_64::FPU *)NULL)->__fpu_##reg.__xmm_reg))
   1271 #define FPU_SIZE_YMM(reg)   (32)
   1272 #define EXC_SIZE(reg)       (sizeof(((DNBArchImplX86_64::EXC *)NULL)->__##reg))
   1273 
   1274 // These macros will auto define the register name, alt name, register size,
   1275 // register offset, encoding, format and native register. This ensures that
   1276 // the register state structures are defined correctly and have the correct
   1277 // sizes and offsets.
   1278 #define DEFINE_GPR(reg)                   { e_regSetGPR, gpr_##reg, #reg, NULL, Uint, Hex, GPR_SIZE(reg), GPR_OFFSET(reg), gcc_dwarf_##reg, gcc_dwarf_##reg, INVALID_NUB_REGNUM, gdb_##reg, NULL, g_invalidate_##reg }
   1279 #define DEFINE_GPR_ALT(reg, alt, gen)     { e_regSetGPR, gpr_##reg, #reg, alt, Uint, Hex, GPR_SIZE(reg), GPR_OFFSET(reg), gcc_dwarf_##reg, gcc_dwarf_##reg, gen, gdb_##reg, NULL, g_invalidate_##reg }
   1280 #define DEFINE_GPR_ALT2(reg, alt)         { e_regSetGPR, gpr_##reg, #reg, alt, Uint, Hex, GPR_SIZE(reg), GPR_OFFSET(reg), INVALID_NUB_REGNUM, INVALID_NUB_REGNUM, INVALID_NUB_REGNUM, gdb_##reg, NULL, NULL }
   1281 #define DEFINE_GPR_ALT3(reg, alt, gen)    { e_regSetGPR, gpr_##reg, #reg, alt, Uint, Hex, GPR_SIZE(reg), GPR_OFFSET(reg), INVALID_NUB_REGNUM, INVALID_NUB_REGNUM, gen, gdb_##reg, NULL, NULL }
   1282 #define DEFINE_GPR_ALT4(reg, alt, gen)     { e_regSetGPR, gpr_##reg, #reg, alt, Uint, Hex, GPR_SIZE(reg), GPR_OFFSET(reg), gcc_dwarf_##reg, gcc_dwarf_##reg, gen, gdb_##reg, NULL, NULL }
   1283 
   1284 #define DEFINE_GPR_PSEUDO_32(reg32,reg64) { e_regSetGPR, gpr_##reg32, #reg32, NULL, Uint, Hex, 4, GPR_OFFSET(reg64)  ,INVALID_NUB_REGNUM, INVALID_NUB_REGNUM, INVALID_NUB_REGNUM, INVALID_NUB_REGNUM, g_contained_##reg64, g_invalidate_##reg64 }
   1285 #define DEFINE_GPR_PSEUDO_16(reg16,reg64) { e_regSetGPR, gpr_##reg16, #reg16, NULL, Uint, Hex, 2, GPR_OFFSET(reg64)  ,INVALID_NUB_REGNUM, INVALID_NUB_REGNUM, INVALID_NUB_REGNUM, INVALID_NUB_REGNUM, g_contained_##reg64, g_invalidate_##reg64 }
   1286 #define DEFINE_GPR_PSEUDO_8H(reg8,reg64)  { e_regSetGPR, gpr_##reg8 , #reg8 , NULL, Uint, Hex, 1, GPR_OFFSET(reg64)+1,INVALID_NUB_REGNUM, INVALID_NUB_REGNUM, INVALID_NUB_REGNUM, INVALID_NUB_REGNUM, g_contained_##reg64, g_invalidate_##reg64 }
   1287 #define DEFINE_GPR_PSEUDO_8L(reg8,reg64)  { e_regSetGPR, gpr_##reg8 , #reg8 , NULL, Uint, Hex, 1, GPR_OFFSET(reg64)  ,INVALID_NUB_REGNUM, INVALID_NUB_REGNUM, INVALID_NUB_REGNUM, INVALID_NUB_REGNUM, g_contained_##reg64, g_invalidate_##reg64 }
   1288 
   1289 // General purpose registers for 64 bit
   1290 
   1291 uint32_t g_contained_rax[] = { gpr_rax, INVALID_NUB_REGNUM };
   1292 uint32_t g_contained_rbx[] = { gpr_rbx, INVALID_NUB_REGNUM };
   1293 uint32_t g_contained_rcx[] = { gpr_rcx, INVALID_NUB_REGNUM };
   1294 uint32_t g_contained_rdx[] = { gpr_rdx, INVALID_NUB_REGNUM };
   1295 uint32_t g_contained_rdi[] = { gpr_rdi, INVALID_NUB_REGNUM };
   1296 uint32_t g_contained_rsi[] = { gpr_rsi, INVALID_NUB_REGNUM };
   1297 uint32_t g_contained_rbp[] = { gpr_rbp, INVALID_NUB_REGNUM };
   1298 uint32_t g_contained_rsp[] = { gpr_rsp, INVALID_NUB_REGNUM };
   1299 uint32_t g_contained_r8[]  = { gpr_r8 , INVALID_NUB_REGNUM };
   1300 uint32_t g_contained_r9[]  = { gpr_r9 , INVALID_NUB_REGNUM };
   1301 uint32_t g_contained_r10[] = { gpr_r10, INVALID_NUB_REGNUM };
   1302 uint32_t g_contained_r11[] = { gpr_r11, INVALID_NUB_REGNUM };
   1303 uint32_t g_contained_r12[] = { gpr_r12, INVALID_NUB_REGNUM };
   1304 uint32_t g_contained_r13[] = { gpr_r13, INVALID_NUB_REGNUM };
   1305 uint32_t g_contained_r14[] = { gpr_r14, INVALID_NUB_REGNUM };
   1306 uint32_t g_contained_r15[] = { gpr_r15, INVALID_NUB_REGNUM };
   1307 
   1308 uint32_t g_invalidate_rax[] = { gpr_rax, gpr_eax , gpr_ax  , gpr_ah  , gpr_al, INVALID_NUB_REGNUM };
   1309 uint32_t g_invalidate_rbx[] = { gpr_rbx, gpr_ebx , gpr_bx  , gpr_bh  , gpr_bl, INVALID_NUB_REGNUM };
   1310 uint32_t g_invalidate_rcx[] = { gpr_rcx, gpr_ecx , gpr_cx  , gpr_ch  , gpr_cl, INVALID_NUB_REGNUM };
   1311 uint32_t g_invalidate_rdx[] = { gpr_rdx, gpr_edx , gpr_dx  , gpr_dh  , gpr_dl, INVALID_NUB_REGNUM };
   1312 uint32_t g_invalidate_rdi[] = { gpr_rdi, gpr_edi , gpr_di  , gpr_dil , INVALID_NUB_REGNUM };
   1313 uint32_t g_invalidate_rsi[] = { gpr_rsi, gpr_esi , gpr_si  , gpr_sil , INVALID_NUB_REGNUM };
   1314 uint32_t g_invalidate_rbp[] = { gpr_rbp, gpr_ebp , gpr_bp  , gpr_bpl , INVALID_NUB_REGNUM };
   1315 uint32_t g_invalidate_rsp[] = { gpr_rsp, gpr_esp , gpr_sp  , gpr_spl , INVALID_NUB_REGNUM };
   1316 uint32_t g_invalidate_r8 [] = { gpr_r8 , gpr_r8d , gpr_r8w , gpr_r8l , INVALID_NUB_REGNUM };
   1317 uint32_t g_invalidate_r9 [] = { gpr_r9 , gpr_r9d , gpr_r9w , gpr_r9l , INVALID_NUB_REGNUM };
   1318 uint32_t g_invalidate_r10[] = { gpr_r10, gpr_r10d, gpr_r10w, gpr_r10l, INVALID_NUB_REGNUM };
   1319 uint32_t g_invalidate_r11[] = { gpr_r11, gpr_r11d, gpr_r11w, gpr_r11l, INVALID_NUB_REGNUM };
   1320 uint32_t g_invalidate_r12[] = { gpr_r12, gpr_r12d, gpr_r12w, gpr_r12l, INVALID_NUB_REGNUM };
   1321 uint32_t g_invalidate_r13[] = { gpr_r13, gpr_r13d, gpr_r13w, gpr_r13l, INVALID_NUB_REGNUM };
   1322 uint32_t g_invalidate_r14[] = { gpr_r14, gpr_r14d, gpr_r14w, gpr_r14l, INVALID_NUB_REGNUM };
   1323 uint32_t g_invalidate_r15[] = { gpr_r15, gpr_r15d, gpr_r15w, gpr_r15l, INVALID_NUB_REGNUM };
   1324 
   1325 const DNBRegisterInfo
   1326 DNBArchImplX86_64::g_gpr_registers[] =
   1327 {
   1328     DEFINE_GPR      (rax),
   1329     DEFINE_GPR      (rbx),
   1330     DEFINE_GPR_ALT  (rcx , "arg4", GENERIC_REGNUM_ARG4),
   1331     DEFINE_GPR_ALT  (rdx , "arg3", GENERIC_REGNUM_ARG3),
   1332     DEFINE_GPR_ALT  (rdi , "arg1", GENERIC_REGNUM_ARG1),
   1333     DEFINE_GPR_ALT  (rsi , "arg2", GENERIC_REGNUM_ARG2),
   1334     DEFINE_GPR_ALT  (rbp , "fp"  , GENERIC_REGNUM_FP),
   1335     DEFINE_GPR_ALT  (rsp , "sp"  , GENERIC_REGNUM_SP),
   1336     DEFINE_GPR_ALT  (r8  , "arg5", GENERIC_REGNUM_ARG5),
   1337     DEFINE_GPR_ALT  (r9  , "arg6", GENERIC_REGNUM_ARG6),
   1338     DEFINE_GPR      (r10),
   1339     DEFINE_GPR      (r11),
   1340     DEFINE_GPR      (r12),
   1341     DEFINE_GPR      (r13),
   1342     DEFINE_GPR      (r14),
   1343     DEFINE_GPR      (r15),
   1344     DEFINE_GPR_ALT4 (rip , "pc", GENERIC_REGNUM_PC),
   1345     DEFINE_GPR_ALT3 (rflags, "flags", GENERIC_REGNUM_FLAGS),
   1346     DEFINE_GPR_ALT2 (cs,        NULL),
   1347     DEFINE_GPR_ALT2 (fs,        NULL),
   1348     DEFINE_GPR_ALT2 (gs,        NULL),
   1349     DEFINE_GPR_PSEUDO_32 (eax, rax),
   1350     DEFINE_GPR_PSEUDO_32 (ebx, rbx),
   1351     DEFINE_GPR_PSEUDO_32 (ecx, rcx),
   1352     DEFINE_GPR_PSEUDO_32 (edx, rdx),
   1353     DEFINE_GPR_PSEUDO_32 (edi, rdi),
   1354     DEFINE_GPR_PSEUDO_32 (esi, rsi),
   1355     DEFINE_GPR_PSEUDO_32 (ebp, rbp),
   1356     DEFINE_GPR_PSEUDO_32 (esp, rsp),
   1357     DEFINE_GPR_PSEUDO_32 (r8d, r8),
   1358     DEFINE_GPR_PSEUDO_32 (r9d, r9),
   1359     DEFINE_GPR_PSEUDO_32 (r10d, r10),
   1360     DEFINE_GPR_PSEUDO_32 (r11d, r11),
   1361     DEFINE_GPR_PSEUDO_32 (r12d, r12),
   1362     DEFINE_GPR_PSEUDO_32 (r13d, r13),
   1363     DEFINE_GPR_PSEUDO_32 (r14d, r14),
   1364     DEFINE_GPR_PSEUDO_32 (r15d, r15),
   1365     DEFINE_GPR_PSEUDO_16 (ax , rax),
   1366     DEFINE_GPR_PSEUDO_16 (bx , rbx),
   1367     DEFINE_GPR_PSEUDO_16 (cx , rcx),
   1368     DEFINE_GPR_PSEUDO_16 (dx , rdx),
   1369     DEFINE_GPR_PSEUDO_16 (di , rdi),
   1370     DEFINE_GPR_PSEUDO_16 (si , rsi),
   1371     DEFINE_GPR_PSEUDO_16 (bp , rbp),
   1372     DEFINE_GPR_PSEUDO_16 (sp , rsp),
   1373     DEFINE_GPR_PSEUDO_16 (r8w, r8),
   1374     DEFINE_GPR_PSEUDO_16 (r9w, r9),
   1375     DEFINE_GPR_PSEUDO_16 (r10w, r10),
   1376     DEFINE_GPR_PSEUDO_16 (r11w, r11),
   1377     DEFINE_GPR_PSEUDO_16 (r12w, r12),
   1378     DEFINE_GPR_PSEUDO_16 (r13w, r13),
   1379     DEFINE_GPR_PSEUDO_16 (r14w, r14),
   1380     DEFINE_GPR_PSEUDO_16 (r15w, r15),
   1381     DEFINE_GPR_PSEUDO_8H (ah , rax),
   1382     DEFINE_GPR_PSEUDO_8H (bh , rbx),
   1383     DEFINE_GPR_PSEUDO_8H (ch , rcx),
   1384     DEFINE_GPR_PSEUDO_8H (dh , rdx),
   1385     DEFINE_GPR_PSEUDO_8L (al , rax),
   1386     DEFINE_GPR_PSEUDO_8L (bl , rbx),
   1387     DEFINE_GPR_PSEUDO_8L (cl , rcx),
   1388     DEFINE_GPR_PSEUDO_8L (dl , rdx),
   1389     DEFINE_GPR_PSEUDO_8L (dil, rdi),
   1390     DEFINE_GPR_PSEUDO_8L (sil, rsi),
   1391     DEFINE_GPR_PSEUDO_8L (bpl, rbp),
   1392     DEFINE_GPR_PSEUDO_8L (spl, rsp),
   1393     DEFINE_GPR_PSEUDO_8L (r8l, r8),
   1394     DEFINE_GPR_PSEUDO_8L (r9l, r9),
   1395     DEFINE_GPR_PSEUDO_8L (r10l, r10),
   1396     DEFINE_GPR_PSEUDO_8L (r11l, r11),
   1397     DEFINE_GPR_PSEUDO_8L (r12l, r12),
   1398     DEFINE_GPR_PSEUDO_8L (r13l, r13),
   1399     DEFINE_GPR_PSEUDO_8L (r14l, r14),
   1400     DEFINE_GPR_PSEUDO_8L (r15l, r15)
   1401 };
   1402 
   1403 // Floating point registers 64 bit
   1404 const DNBRegisterInfo
   1405 DNBArchImplX86_64::g_fpu_registers_no_avx[] =
   1406 {
   1407     { e_regSetFPU, fpu_fcw      , "fctrl"       , NULL, Uint, Hex, FPU_SIZE_UINT(fcw)       , FPU_OFFSET(fcw)       , -1U, -1U, -1U, -1U, NULL, NULL },
   1408     { e_regSetFPU, fpu_fsw      , "fstat"       , NULL, Uint, Hex, FPU_SIZE_UINT(fsw)       , FPU_OFFSET(fsw)       , -1U, -1U, -1U, -1U, NULL, NULL },
   1409     { e_regSetFPU, fpu_ftw      , "ftag"        , NULL, Uint, Hex, FPU_SIZE_UINT(ftw)       , FPU_OFFSET(ftw)       , -1U, -1U, -1U, -1U, NULL, NULL },
   1410     { e_regSetFPU, fpu_fop      , "fop"         , NULL, Uint, Hex, FPU_SIZE_UINT(fop)       , FPU_OFFSET(fop)       , -1U, -1U, -1U, -1U, NULL, NULL },
   1411     { e_regSetFPU, fpu_ip       , "fioff"       , NULL, Uint, Hex, FPU_SIZE_UINT(ip)        , FPU_OFFSET(ip)        , -1U, -1U, -1U, -1U, NULL, NULL },
   1412     { e_regSetFPU, fpu_cs       , "fiseg"       , NULL, Uint, Hex, FPU_SIZE_UINT(cs)        , FPU_OFFSET(cs)        , -1U, -1U, -1U, -1U, NULL, NULL },
   1413     { e_regSetFPU, fpu_dp       , "fooff"       , NULL, Uint, Hex, FPU_SIZE_UINT(dp)        , FPU_OFFSET(dp)        , -1U, -1U, -1U, -1U, NULL, NULL },
   1414     { e_regSetFPU, fpu_ds       , "foseg"       , NULL, Uint, Hex, FPU_SIZE_UINT(ds)        , FPU_OFFSET(ds)        , -1U, -1U, -1U, -1U, NULL, NULL },
   1415     { e_regSetFPU, fpu_mxcsr    , "mxcsr"       , NULL, Uint, Hex, FPU_SIZE_UINT(mxcsr)     , FPU_OFFSET(mxcsr)     , -1U, -1U, -1U, -1U, NULL, NULL },
   1416     { e_regSetFPU, fpu_mxcsrmask, "mxcsrmask"   , NULL, Uint, Hex, FPU_SIZE_UINT(mxcsrmask) , FPU_OFFSET(mxcsrmask) , -1U, -1U, -1U, -1U, NULL, NULL },
   1417 
   1418     { e_regSetFPU, fpu_stmm0, "stmm0", NULL, Vector, VectorOfUInt8, FPU_SIZE_MMST(stmm0), FPU_OFFSET(stmm0), gcc_dwarf_stmm0, gcc_dwarf_stmm0, -1U, gdb_stmm0, NULL, NULL },
   1419     { e_regSetFPU, fpu_stmm1, "stmm1", NULL, Vector, VectorOfUInt8, FPU_SIZE_MMST(stmm1), FPU_OFFSET(stmm1), gcc_dwarf_stmm1, gcc_dwarf_stmm1, -1U, gdb_stmm1, NULL, NULL },
   1420     { e_regSetFPU, fpu_stmm2, "stmm2", NULL, Vector, VectorOfUInt8, FPU_SIZE_MMST(stmm2), FPU_OFFSET(stmm2), gcc_dwarf_stmm2, gcc_dwarf_stmm2, -1U, gdb_stmm2, NULL, NULL },
   1421     { e_regSetFPU, fpu_stmm3, "stmm3", NULL, Vector, VectorOfUInt8, FPU_SIZE_MMST(stmm3), FPU_OFFSET(stmm3), gcc_dwarf_stmm3, gcc_dwarf_stmm3, -1U, gdb_stmm3, NULL, NULL },
   1422     { e_regSetFPU, fpu_stmm4, "stmm4", NULL, Vector, VectorOfUInt8, FPU_SIZE_MMST(stmm4), FPU_OFFSET(stmm4), gcc_dwarf_stmm4, gcc_dwarf_stmm4, -1U, gdb_stmm4, NULL, NULL },
   1423     { e_regSetFPU, fpu_stmm5, "stmm5", NULL, Vector, VectorOfUInt8, FPU_SIZE_MMST(stmm5), FPU_OFFSET(stmm5), gcc_dwarf_stmm5, gcc_dwarf_stmm5, -1U, gdb_stmm5, NULL, NULL },
   1424     { e_regSetFPU, fpu_stmm6, "stmm6", NULL, Vector, VectorOfUInt8, FPU_SIZE_MMST(stmm6), FPU_OFFSET(stmm6), gcc_dwarf_stmm6, gcc_dwarf_stmm6, -1U, gdb_stmm6, NULL, NULL },
   1425     { e_regSetFPU, fpu_stmm7, "stmm7", NULL, Vector, VectorOfUInt8, FPU_SIZE_MMST(stmm7), FPU_OFFSET(stmm7), gcc_dwarf_stmm7, gcc_dwarf_stmm7, -1U, gdb_stmm7, NULL, NULL },
   1426 
   1427     { e_regSetFPU, fpu_xmm0 , "xmm0"    , NULL, Vector, VectorOfUInt8, FPU_SIZE_XMM(xmm0)   , FPU_OFFSET(xmm0) , gcc_dwarf_xmm0 , gcc_dwarf_xmm0 , -1U, gdb_xmm0 , NULL, NULL },
   1428     { e_regSetFPU, fpu_xmm1 , "xmm1"    , NULL, Vector, VectorOfUInt8, FPU_SIZE_XMM(xmm1)   , FPU_OFFSET(xmm1) , gcc_dwarf_xmm1 , gcc_dwarf_xmm1 , -1U, gdb_xmm1 , NULL, NULL },
   1429     { e_regSetFPU, fpu_xmm2 , "xmm2"    , NULL, Vector, VectorOfUInt8, FPU_SIZE_XMM(xmm2)   , FPU_OFFSET(xmm2) , gcc_dwarf_xmm2 , gcc_dwarf_xmm2 , -1U, gdb_xmm2 , NULL, NULL },
   1430     { e_regSetFPU, fpu_xmm3 , "xmm3"    , NULL, Vector, VectorOfUInt8, FPU_SIZE_XMM(xmm3)   , FPU_OFFSET(xmm3) , gcc_dwarf_xmm3 , gcc_dwarf_xmm3 , -1U, gdb_xmm3 , NULL, NULL },
   1431     { e_regSetFPU, fpu_xmm4 , "xmm4"    , NULL, Vector, VectorOfUInt8, FPU_SIZE_XMM(xmm4)   , FPU_OFFSET(xmm4) , gcc_dwarf_xmm4 , gcc_dwarf_xmm4 , -1U, gdb_xmm4 , NULL, NULL },
   1432     { e_regSetFPU, fpu_xmm5 , "xmm5"    , NULL, Vector, VectorOfUInt8, FPU_SIZE_XMM(xmm5)   , FPU_OFFSET(xmm5) , gcc_dwarf_xmm5 , gcc_dwarf_xmm5 , -1U, gdb_xmm5 , NULL, NULL },
   1433     { e_regSetFPU, fpu_xmm6 , "xmm6"    , NULL, Vector, VectorOfUInt8, FPU_SIZE_XMM(xmm6)   , FPU_OFFSET(xmm6) , gcc_dwarf_xmm6 , gcc_dwarf_xmm6 , -1U, gdb_xmm6 , NULL, NULL },
   1434     { e_regSetFPU, fpu_xmm7 , "xmm7"    , NULL, Vector, VectorOfUInt8, FPU_SIZE_XMM(xmm7)   , FPU_OFFSET(xmm7) , gcc_dwarf_xmm7 , gcc_dwarf_xmm7 , -1U, gdb_xmm7 , NULL, NULL },
   1435     { e_regSetFPU, fpu_xmm8 , "xmm8"    , NULL, Vector, VectorOfUInt8, FPU_SIZE_XMM(xmm8)   , FPU_OFFSET(xmm8) , gcc_dwarf_xmm8 , gcc_dwarf_xmm8 , -1U, gdb_xmm8 , NULL, NULL },
   1436     { e_regSetFPU, fpu_xmm9 , "xmm9"    , NULL, Vector, VectorOfUInt8, FPU_SIZE_XMM(xmm9)   , FPU_OFFSET(xmm9) , gcc_dwarf_xmm9 , gcc_dwarf_xmm9 , -1U, gdb_xmm9 , NULL, NULL },
   1437     { e_regSetFPU, fpu_xmm10, "xmm10"   , NULL, Vector, VectorOfUInt8, FPU_SIZE_XMM(xmm10)  , FPU_OFFSET(xmm10), gcc_dwarf_xmm10, gcc_dwarf_xmm10, -1U, gdb_xmm10, NULL, NULL },
   1438     { e_regSetFPU, fpu_xmm11, "xmm11"   , NULL, Vector, VectorOfUInt8, FPU_SIZE_XMM(xmm11)  , FPU_OFFSET(xmm11), gcc_dwarf_xmm11, gcc_dwarf_xmm11, -1U, gdb_xmm11, NULL, NULL },
   1439     { e_regSetFPU, fpu_xmm12, "xmm12"   , NULL, Vector, VectorOfUInt8, FPU_SIZE_XMM(xmm12)  , FPU_OFFSET(xmm12), gcc_dwarf_xmm12, gcc_dwarf_xmm12, -1U, gdb_xmm12, NULL, NULL },
   1440     { e_regSetFPU, fpu_xmm13, "xmm13"   , NULL, Vector, VectorOfUInt8, FPU_SIZE_XMM(xmm13)  , FPU_OFFSET(xmm13), gcc_dwarf_xmm13, gcc_dwarf_xmm13, -1U, gdb_xmm13, NULL, NULL },
   1441     { e_regSetFPU, fpu_xmm14, "xmm14"   , NULL, Vector, VectorOfUInt8, FPU_SIZE_XMM(xmm14)  , FPU_OFFSET(xmm14), gcc_dwarf_xmm14, gcc_dwarf_xmm14, -1U, gdb_xmm14, NULL, NULL },
   1442     { e_regSetFPU, fpu_xmm15, "xmm15"   , NULL, Vector, VectorOfUInt8, FPU_SIZE_XMM(xmm15)  , FPU_OFFSET(xmm15), gcc_dwarf_xmm15, gcc_dwarf_xmm15, -1U, gdb_xmm15, NULL, NULL },
   1443 };
   1444 
   1445 const DNBRegisterInfo
   1446 DNBArchImplX86_64::g_fpu_registers_avx[] =
   1447 {
   1448     { e_regSetFPU, fpu_fcw      , "fctrl"       , NULL, Uint, Hex, FPU_SIZE_UINT(fcw)       , AVX_OFFSET(fcw)       , -1U, -1U, -1U, -1U, NULL, NULL },
   1449     { e_regSetFPU, fpu_fsw      , "fstat"       , NULL, Uint, Hex, FPU_SIZE_UINT(fsw)       , AVX_OFFSET(fsw)       , -1U, -1U, -1U, -1U, NULL, NULL },
   1450     { e_regSetFPU, fpu_ftw      , "ftag"        , NULL, Uint, Hex, FPU_SIZE_UINT(ftw)       , AVX_OFFSET(ftw)       , -1U, -1U, -1U, -1U, NULL, NULL },
   1451     { e_regSetFPU, fpu_fop      , "fop"         , NULL, Uint, Hex, FPU_SIZE_UINT(fop)       , AVX_OFFSET(fop)       , -1U, -1U, -1U, -1U, NULL, NULL },
   1452     { e_regSetFPU, fpu_ip       , "fioff"       , NULL, Uint, Hex, FPU_SIZE_UINT(ip)        , AVX_OFFSET(ip)        , -1U, -1U, -1U, -1U, NULL, NULL },
   1453     { e_regSetFPU, fpu_cs       , "fiseg"       , NULL, Uint, Hex, FPU_SIZE_UINT(cs)        , AVX_OFFSET(cs)        , -1U, -1U, -1U, -1U, NULL, NULL },
   1454     { e_regSetFPU, fpu_dp       , "fooff"       , NULL, Uint, Hex, FPU_SIZE_UINT(dp)        , AVX_OFFSET(dp)        , -1U, -1U, -1U, -1U, NULL, NULL },
   1455     { e_regSetFPU, fpu_ds       , "foseg"       , NULL, Uint, Hex, FPU_SIZE_UINT(ds)        , AVX_OFFSET(ds)        , -1U, -1U, -1U, -1U, NULL, NULL },
   1456     { e_regSetFPU, fpu_mxcsr    , "mxcsr"       , NULL, Uint, Hex, FPU_SIZE_UINT(mxcsr)     , AVX_OFFSET(mxcsr)     , -1U, -1U, -1U, -1U, NULL, NULL },
   1457     { e_regSetFPU, fpu_mxcsrmask, "mxcsrmask"   , NULL, Uint, Hex, FPU_SIZE_UINT(mxcsrmask) , AVX_OFFSET(mxcsrmask) , -1U, -1U, -1U, -1U, NULL, NULL },
   1458 
   1459     { e_regSetFPU, fpu_stmm0, "stmm0", NULL, Vector, VectorOfUInt8, FPU_SIZE_MMST(stmm0), AVX_OFFSET(stmm0), gcc_dwarf_stmm0, gcc_dwarf_stmm0, -1U, gdb_stmm0, NULL, NULL },
   1460     { e_regSetFPU, fpu_stmm1, "stmm1", NULL, Vector, VectorOfUInt8, FPU_SIZE_MMST(stmm1), AVX_OFFSET(stmm1), gcc_dwarf_stmm1, gcc_dwarf_stmm1, -1U, gdb_stmm1, NULL, NULL },
   1461     { e_regSetFPU, fpu_stmm2, "stmm2", NULL, Vector, VectorOfUInt8, FPU_SIZE_MMST(stmm2), AVX_OFFSET(stmm2), gcc_dwarf_stmm2, gcc_dwarf_stmm2, -1U, gdb_stmm2, NULL, NULL },
   1462     { e_regSetFPU, fpu_stmm3, "stmm3", NULL, Vector, VectorOfUInt8, FPU_SIZE_MMST(stmm3), AVX_OFFSET(stmm3), gcc_dwarf_stmm3, gcc_dwarf_stmm3, -1U, gdb_stmm3, NULL, NULL },
   1463     { e_regSetFPU, fpu_stmm4, "stmm4", NULL, Vector, VectorOfUInt8, FPU_SIZE_MMST(stmm4), AVX_OFFSET(stmm4), gcc_dwarf_stmm4, gcc_dwarf_stmm4, -1U, gdb_stmm4, NULL, NULL },
   1464     { e_regSetFPU, fpu_stmm5, "stmm5", NULL, Vector, VectorOfUInt8, FPU_SIZE_MMST(stmm5), AVX_OFFSET(stmm5), gcc_dwarf_stmm5, gcc_dwarf_stmm5, -1U, gdb_stmm5, NULL, NULL },
   1465     { e_regSetFPU, fpu_stmm6, "stmm6", NULL, Vector, VectorOfUInt8, FPU_SIZE_MMST(stmm6), AVX_OFFSET(stmm6), gcc_dwarf_stmm6, gcc_dwarf_stmm6, -1U, gdb_stmm6, NULL, NULL },
   1466     { e_regSetFPU, fpu_stmm7, "stmm7", NULL, Vector, VectorOfUInt8, FPU_SIZE_MMST(stmm7), AVX_OFFSET(stmm7), gcc_dwarf_stmm7, gcc_dwarf_stmm7, -1U, gdb_stmm7, NULL, NULL },
   1467 
   1468     { e_regSetFPU, fpu_xmm0 , "xmm0"    , NULL, Vector, VectorOfUInt8, FPU_SIZE_XMM(xmm0)   , AVX_OFFSET(xmm0) , gcc_dwarf_xmm0 , gcc_dwarf_xmm0 , -1U, gdb_xmm0 , NULL, NULL },
   1469     { e_regSetFPU, fpu_xmm1 , "xmm1"    , NULL, Vector, VectorOfUInt8, FPU_SIZE_XMM(xmm1)   , AVX_OFFSET(xmm1) , gcc_dwarf_xmm1 , gcc_dwarf_xmm1 , -1U, gdb_xmm1 , NULL, NULL },
   1470     { e_regSetFPU, fpu_xmm2 , "xmm2"    , NULL, Vector, VectorOfUInt8, FPU_SIZE_XMM(xmm2)   , AVX_OFFSET(xmm2) , gcc_dwarf_xmm2 , gcc_dwarf_xmm2 , -1U, gdb_xmm2 , NULL, NULL },
   1471     { e_regSetFPU, fpu_xmm3 , "xmm3"    , NULL, Vector, VectorOfUInt8, FPU_SIZE_XMM(xmm3)   , AVX_OFFSET(xmm3) , gcc_dwarf_xmm3 , gcc_dwarf_xmm3 , -1U, gdb_xmm3 , NULL, NULL },
   1472     { e_regSetFPU, fpu_xmm4 , "xmm4"    , NULL, Vector, VectorOfUInt8, FPU_SIZE_XMM(xmm4)   , AVX_OFFSET(xmm4) , gcc_dwarf_xmm4 , gcc_dwarf_xmm4 , -1U, gdb_xmm4 , NULL, NULL },
   1473     { e_regSetFPU, fpu_xmm5 , "xmm5"    , NULL, Vector, VectorOfUInt8, FPU_SIZE_XMM(xmm5)   , AVX_OFFSET(xmm5) , gcc_dwarf_xmm5 , gcc_dwarf_xmm5 , -1U, gdb_xmm5 , NULL, NULL },
   1474     { e_regSetFPU, fpu_xmm6 , "xmm6"    , NULL, Vector, VectorOfUInt8, FPU_SIZE_XMM(xmm6)   , AVX_OFFSET(xmm6) , gcc_dwarf_xmm6 , gcc_dwarf_xmm6 , -1U, gdb_xmm6 , NULL, NULL },
   1475     { e_regSetFPU, fpu_xmm7 , "xmm7"    , NULL, Vector, VectorOfUInt8, FPU_SIZE_XMM(xmm7)   , AVX_OFFSET(xmm7) , gcc_dwarf_xmm7 , gcc_dwarf_xmm7 , -1U, gdb_xmm7 , NULL, NULL },
   1476     { e_regSetFPU, fpu_xmm8 , "xmm8"    , NULL, Vector, VectorOfUInt8, FPU_SIZE_XMM(xmm8)   , AVX_OFFSET(xmm8) , gcc_dwarf_xmm8 , gcc_dwarf_xmm8 , -1U, gdb_xmm8 , NULL, NULL },
   1477     { e_regSetFPU, fpu_xmm9 , "xmm9"    , NULL, Vector, VectorOfUInt8, FPU_SIZE_XMM(xmm9)   , AVX_OFFSET(xmm9) , gcc_dwarf_xmm9 , gcc_dwarf_xmm9 , -1U, gdb_xmm9 , NULL, NULL },
   1478     { e_regSetFPU, fpu_xmm10, "xmm10"   , NULL, Vector, VectorOfUInt8, FPU_SIZE_XMM(xmm10)  , AVX_OFFSET(xmm10), gcc_dwarf_xmm10, gcc_dwarf_xmm10, -1U, gdb_xmm10, NULL, NULL },
   1479     { e_regSetFPU, fpu_xmm11, "xmm11"   , NULL, Vector, VectorOfUInt8, FPU_SIZE_XMM(xmm11)  , AVX_OFFSET(xmm11), gcc_dwarf_xmm11, gcc_dwarf_xmm11, -1U, gdb_xmm11, NULL, NULL },
   1480     { e_regSetFPU, fpu_xmm12, "xmm12"   , NULL, Vector, VectorOfUInt8, FPU_SIZE_XMM(xmm12)  , AVX_OFFSET(xmm12), gcc_dwarf_xmm12, gcc_dwarf_xmm12, -1U, gdb_xmm12, NULL, NULL },
   1481     { e_regSetFPU, fpu_xmm13, "xmm13"   , NULL, Vector, VectorOfUInt8, FPU_SIZE_XMM(xmm13)  , AVX_OFFSET(xmm13), gcc_dwarf_xmm13, gcc_dwarf_xmm13, -1U, gdb_xmm13, NULL, NULL },
   1482     { e_regSetFPU, fpu_xmm14, "xmm14"   , NULL, Vector, VectorOfUInt8, FPU_SIZE_XMM(xmm14)  , AVX_OFFSET(xmm14), gcc_dwarf_xmm14, gcc_dwarf_xmm14, -1U, gdb_xmm14, NULL, NULL },
   1483     { e_regSetFPU, fpu_xmm15, "xmm15"   , NULL, Vector, VectorOfUInt8, FPU_SIZE_XMM(xmm15)  , AVX_OFFSET(xmm15), gcc_dwarf_xmm15, gcc_dwarf_xmm15, -1U, gdb_xmm15, NULL, NULL },
   1484 
   1485     { e_regSetFPU, fpu_ymm0 , "ymm0"    , NULL, Vector, VectorOfUInt8, FPU_SIZE_YMM(ymm0)   , AVX_OFFSET_YMM(0) , gcc_dwarf_ymm0 , gcc_dwarf_ymm0 , -1U, gdb_ymm0, NULL, NULL },
   1486     { e_regSetFPU, fpu_ymm1 , "ymm1"    , NULL, Vector, VectorOfUInt8, FPU_SIZE_YMM(ymm1)   , AVX_OFFSET_YMM(1) , gcc_dwarf_ymm1 , gcc_dwarf_ymm1 , -1U, gdb_ymm1, NULL, NULL },
   1487     { e_regSetFPU, fpu_ymm2 , "ymm2"    , NULL, Vector, VectorOfUInt8, FPU_SIZE_YMM(ymm2)   , AVX_OFFSET_YMM(2) , gcc_dwarf_ymm2 , gcc_dwarf_ymm2 , -1U, gdb_ymm2, NULL, NULL },
   1488     { e_regSetFPU, fpu_ymm3 , "ymm3"    , NULL, Vector, VectorOfUInt8, FPU_SIZE_YMM(ymm3)   , AVX_OFFSET_YMM(3) , gcc_dwarf_ymm3 , gcc_dwarf_ymm3 , -1U, gdb_ymm3, NULL, NULL },
   1489     { e_regSetFPU, fpu_ymm4 , "ymm4"    , NULL, Vector, VectorOfUInt8, FPU_SIZE_YMM(ymm4)   , AVX_OFFSET_YMM(4) , gcc_dwarf_ymm4 , gcc_dwarf_ymm4 , -1U, gdb_ymm4, NULL, NULL },
   1490     { e_regSetFPU, fpu_ymm5 , "ymm5"    , NULL, Vector, VectorOfUInt8, FPU_SIZE_YMM(ymm5)   , AVX_OFFSET_YMM(5) , gcc_dwarf_ymm5 , gcc_dwarf_ymm5 , -1U, gdb_ymm5, NULL, NULL },
   1491     { e_regSetFPU, fpu_ymm6 , "ymm6"    , NULL, Vector, VectorOfUInt8, FPU_SIZE_YMM(ymm6)   , AVX_OFFSET_YMM(6) , gcc_dwarf_ymm6 , gcc_dwarf_ymm6 , -1U, gdb_ymm6, NULL, NULL },
   1492     { e_regSetFPU, fpu_ymm7 , "ymm7"    , NULL, Vector, VectorOfUInt8, FPU_SIZE_YMM(ymm7)   , AVX_OFFSET_YMM(7) , gcc_dwarf_ymm7 , gcc_dwarf_ymm7 , -1U, gdb_ymm7, NULL, NULL },
   1493     { e_regSetFPU, fpu_ymm8 , "ymm8"    , NULL, Vector, VectorOfUInt8, FPU_SIZE_YMM(ymm8)   , AVX_OFFSET_YMM(8) , gcc_dwarf_ymm8 , gcc_dwarf_ymm8 , -1U, gdb_ymm8 , NULL, NULL },
   1494     { e_regSetFPU, fpu_ymm9 , "ymm9"    , NULL, Vector, VectorOfUInt8, FPU_SIZE_YMM(ymm9)   , AVX_OFFSET_YMM(9) , gcc_dwarf_ymm9 , gcc_dwarf_ymm9 , -1U, gdb_ymm9 , NULL, NULL },
   1495     { e_regSetFPU, fpu_ymm10, "ymm10"   , NULL, Vector, VectorOfUInt8, FPU_SIZE_YMM(ymm10)  , AVX_OFFSET_YMM(10), gcc_dwarf_ymm10, gcc_dwarf_ymm10, -1U, gdb_ymm10, NULL, NULL },
   1496     { e_regSetFPU, fpu_ymm11, "ymm11"   , NULL, Vector, VectorOfUInt8, FPU_SIZE_YMM(ymm11)  , AVX_OFFSET_YMM(11), gcc_dwarf_ymm11, gcc_dwarf_ymm11, -1U, gdb_ymm11, NULL, NULL },
   1497     { e_regSetFPU, fpu_ymm12, "ymm12"   , NULL, Vector, VectorOfUInt8, FPU_SIZE_YMM(ymm12)  , AVX_OFFSET_YMM(12), gcc_dwarf_ymm12, gcc_dwarf_ymm12, -1U, gdb_ymm12, NULL, NULL },
   1498     { e_regSetFPU, fpu_ymm13, "ymm13"   , NULL, Vector, VectorOfUInt8, FPU_SIZE_YMM(ymm13)  , AVX_OFFSET_YMM(13), gcc_dwarf_ymm13, gcc_dwarf_ymm13, -1U, gdb_ymm13, NULL, NULL },
   1499     { e_regSetFPU, fpu_ymm14, "ymm14"   , NULL, Vector, VectorOfUInt8, FPU_SIZE_YMM(ymm14)  , AVX_OFFSET_YMM(14), gcc_dwarf_ymm14, gcc_dwarf_ymm14, -1U, gdb_ymm14, NULL, NULL },
   1500     { e_regSetFPU, fpu_ymm15, "ymm15"   , NULL, Vector, VectorOfUInt8, FPU_SIZE_YMM(ymm15)  , AVX_OFFSET_YMM(15), gcc_dwarf_ymm15, gcc_dwarf_ymm15, -1U, gdb_ymm15, NULL, NULL }
   1501 };
   1502 
   1503 // Exception registers
   1504 
   1505 const DNBRegisterInfo
   1506 DNBArchImplX86_64::g_exc_registers[] =
   1507 {
   1508     { e_regSetEXC, exc_trapno,      "trapno"    , NULL, Uint, Hex, EXC_SIZE (trapno)    , EXC_OFFSET (trapno)       , -1U, -1U, -1U, -1U, NULL, NULL },
   1509     { e_regSetEXC, exc_err,         "err"       , NULL, Uint, Hex, EXC_SIZE (err)       , EXC_OFFSET (err)          , -1U, -1U, -1U, -1U, NULL, NULL },
   1510     { e_regSetEXC, exc_faultvaddr,  "faultvaddr", NULL, Uint, Hex, EXC_SIZE (faultvaddr), EXC_OFFSET (faultvaddr)   , -1U, -1U, -1U, -1U, NULL, NULL }
   1511 };
   1512 
   1513 // Number of registers in each register set
   1514 const size_t DNBArchImplX86_64::k_num_gpr_registers = sizeof(g_gpr_registers)/sizeof(DNBRegisterInfo);
   1515 const size_t DNBArchImplX86_64::k_num_fpu_registers_no_avx = sizeof(g_fpu_registers_no_avx)/sizeof(DNBRegisterInfo);
   1516 const size_t DNBArchImplX86_64::k_num_fpu_registers_avx = sizeof(g_fpu_registers_avx)/sizeof(DNBRegisterInfo);
   1517 const size_t DNBArchImplX86_64::k_num_exc_registers = sizeof(g_exc_registers)/sizeof(DNBRegisterInfo);
   1518 const size_t DNBArchImplX86_64::k_num_all_registers_no_avx = k_num_gpr_registers + k_num_fpu_registers_no_avx + k_num_exc_registers;
   1519 const size_t DNBArchImplX86_64::k_num_all_registers_avx = k_num_gpr_registers + k_num_fpu_registers_avx + k_num_exc_registers;
   1520 
   1521 //----------------------------------------------------------------------
   1522 // Register set definitions. The first definitions at register set index
   1523 // of zero is for all registers, followed by other registers sets. The
   1524 // register information for the all register set need not be filled in.
   1525 //----------------------------------------------------------------------
   1526 const DNBRegisterSetInfo
   1527 DNBArchImplX86_64::g_reg_sets_no_avx[] =
   1528 {
   1529     { "x86_64 Registers",           NULL,               k_num_all_registers_no_avx },
   1530     { "General Purpose Registers",  g_gpr_registers,    k_num_gpr_registers },
   1531     { "Floating Point Registers",   g_fpu_registers_no_avx, k_num_fpu_registers_no_avx },
   1532     { "Exception State Registers",  g_exc_registers,    k_num_exc_registers }
   1533 };
   1534 
   1535 const DNBRegisterSetInfo
   1536 DNBArchImplX86_64::g_reg_sets_avx[] =
   1537 {
   1538     { "x86_64 Registers",           NULL,               k_num_all_registers_avx },
   1539     { "General Purpose Registers",  g_gpr_registers,    k_num_gpr_registers },
   1540     { "Floating Point Registers",   g_fpu_registers_avx, k_num_fpu_registers_avx },
   1541     { "Exception State Registers",  g_exc_registers,    k_num_exc_registers }
   1542 };
   1543 
   1544 // Total number of register sets for this architecture
   1545 const size_t DNBArchImplX86_64::k_num_register_sets = sizeof(g_reg_sets_avx)/sizeof(DNBRegisterSetInfo);
   1546 
   1547 
   1548 DNBArchProtocol *
   1549 DNBArchImplX86_64::Create (MachThread *thread)
   1550 {
   1551     DNBArchImplX86_64 *obj = new DNBArchImplX86_64 (thread);
   1552     return obj;
   1553 }
   1554 
   1555 const uint8_t * const
   1556 DNBArchImplX86_64::SoftwareBreakpointOpcode (nub_size_t byte_size)
   1557 {
   1558     static const uint8_t g_breakpoint_opcode[] = { 0xCC };
   1559     if (byte_size == 1)
   1560         return g_breakpoint_opcode;
   1561     return NULL;
   1562 }
   1563 
   1564 const DNBRegisterSetInfo *
   1565 DNBArchImplX86_64::GetRegisterSetInfo(nub_size_t *num_reg_sets)
   1566 {
   1567     *num_reg_sets = k_num_register_sets;
   1568 
   1569     if (CPUHasAVX() || FORCE_AVX_REGS)
   1570         return g_reg_sets_avx;
   1571     else
   1572         return g_reg_sets_no_avx;
   1573 }
   1574 
   1575 void
   1576 DNBArchImplX86_64::Initialize()
   1577 {
   1578     DNBArchPluginInfo arch_plugin_info =
   1579     {
   1580         CPU_TYPE_X86_64,
   1581         DNBArchImplX86_64::Create,
   1582         DNBArchImplX86_64::GetRegisterSetInfo,
   1583         DNBArchImplX86_64::SoftwareBreakpointOpcode
   1584     };
   1585 
   1586     // Register this arch plug-in with the main protocol class
   1587     DNBArchProtocol::RegisterArchPlugin (arch_plugin_info);
   1588 }
   1589 
   1590 bool
   1591 DNBArchImplX86_64::GetRegisterValue(int set, int reg, DNBRegisterValue *value)
   1592 {
   1593     if (set == REGISTER_SET_GENERIC)
   1594     {
   1595         switch (reg)
   1596         {
   1597             case GENERIC_REGNUM_PC:     // Program Counter
   1598                 set = e_regSetGPR;
   1599                 reg = gpr_rip;
   1600                 break;
   1601 
   1602             case GENERIC_REGNUM_SP:     // Stack Pointer
   1603                 set = e_regSetGPR;
   1604                 reg = gpr_rsp;
   1605                 break;
   1606 
   1607             case GENERIC_REGNUM_FP:     // Frame Pointer
   1608                 set = e_regSetGPR;
   1609                 reg = gpr_rbp;
   1610                 break;
   1611 
   1612             case GENERIC_REGNUM_FLAGS:  // Processor flags register
   1613                 set = e_regSetGPR;
   1614                 reg = gpr_rflags;
   1615                 break;
   1616 
   1617             case GENERIC_REGNUM_RA:     // Return Address
   1618             default:
   1619                 return false;
   1620         }
   1621     }
   1622 
   1623     if (GetRegisterState(set, false) != KERN_SUCCESS)
   1624         return false;
   1625 
   1626     const DNBRegisterInfo *regInfo = m_thread->GetRegisterInfo(set, reg);
   1627     if (regInfo)
   1628     {
   1629         value->info = *regInfo;
   1630         switch (set)
   1631         {
   1632             case e_regSetGPR:
   1633                 if (reg < k_num_gpr_registers)
   1634                 {
   1635                     value->value.uint64 = ((uint64_t*)(&m_state.context.gpr))[reg];
   1636                     return true;
   1637                 }
   1638                 break;
   1639 
   1640             case e_regSetFPU:
   1641                 if (CPUHasAVX() || FORCE_AVX_REGS)
   1642                 {
   1643                     switch (reg)
   1644                     {
   1645                     case fpu_fcw:       value->value.uint16 = *((uint16_t *)(&m_state.context.fpu.avx.__fpu_fcw));    return true;
   1646                     case fpu_fsw:       value->value.uint16 = *((uint16_t *)(&m_state.context.fpu.avx.__fpu_fsw));    return true;
   1647                     case fpu_ftw:       value->value.uint8  = m_state.context.fpu.avx.__fpu_ftw;                      return true;
   1648                     case fpu_fop:       value->value.uint16 = m_state.context.fpu.avx.__fpu_fop;                      return true;
   1649                     case fpu_ip:        value->value.uint32 = m_state.context.fpu.avx.__fpu_ip;                       return true;
   1650                     case fpu_cs:        value->value.uint16 = m_state.context.fpu.avx.__fpu_cs;                       return true;
   1651                     case fpu_dp:        value->value.uint32 = m_state.context.fpu.avx.__fpu_dp;                       return true;
   1652                     case fpu_ds:        value->value.uint16 = m_state.context.fpu.avx.__fpu_ds;                       return true;
   1653                     case fpu_mxcsr:     value->value.uint32 = m_state.context.fpu.avx.__fpu_mxcsr;                    return true;
   1654                     case fpu_mxcsrmask: value->value.uint32 = m_state.context.fpu.avx.__fpu_mxcsrmask;                return true;
   1655 
   1656                     case fpu_stmm0:
   1657                     case fpu_stmm1:
   1658                     case fpu_stmm2:
   1659                     case fpu_stmm3:
   1660                     case fpu_stmm4:
   1661                     case fpu_stmm5:
   1662                     case fpu_stmm6:
   1663                     case fpu_stmm7:
   1664                         memcpy(&value->value.uint8, &m_state.context.fpu.avx.__fpu_stmm0 + (reg - fpu_stmm0), 10);
   1665                         return true;
   1666 
   1667                     case fpu_xmm0:
   1668                     case fpu_xmm1:
   1669                     case fpu_xmm2:
   1670                     case fpu_xmm3:
   1671                     case fpu_xmm4:
   1672                     case fpu_xmm5:
   1673                     case fpu_xmm6:
   1674                     case fpu_xmm7:
   1675                     case fpu_xmm8:
   1676                     case fpu_xmm9:
   1677                     case fpu_xmm10:
   1678                     case fpu_xmm11:
   1679                     case fpu_xmm12:
   1680                     case fpu_xmm13:
   1681                     case fpu_xmm14:
   1682                     case fpu_xmm15:
   1683                         memcpy(&value->value.uint8, &m_state.context.fpu.avx.__fpu_xmm0 + (reg - fpu_xmm0), 16);
   1684                         return true;
   1685 
   1686                     case fpu_ymm0:
   1687                     case fpu_ymm1:
   1688                     case fpu_ymm2:
   1689                     case fpu_ymm3:
   1690                     case fpu_ymm4:
   1691                     case fpu_ymm5:
   1692                     case fpu_ymm6:
   1693                     case fpu_ymm7:
   1694                     case fpu_ymm8:
   1695                     case fpu_ymm9:
   1696                     case fpu_ymm10:
   1697                     case fpu_ymm11:
   1698                     case fpu_ymm12:
   1699                     case fpu_ymm13:
   1700                     case fpu_ymm14:
   1701                     case fpu_ymm15:
   1702                         memcpy(&value->value.uint8, &m_state.context.fpu.avx.__fpu_xmm0 + (reg - fpu_ymm0), 16);
   1703                         memcpy((&value->value.uint8) + 16, &m_state.context.fpu.avx.__fpu_ymmh0 + (reg - fpu_ymm0), 16);
   1704                         return true;
   1705                     }
   1706                 }
   1707                 else
   1708                 {
   1709                     switch (reg)
   1710                     {
   1711                         case fpu_fcw:       value->value.uint16 = *((uint16_t *)(&m_state.context.fpu.no_avx.__fpu_fcw));    return true;
   1712                         case fpu_fsw:       value->value.uint16 = *((uint16_t *)(&m_state.context.fpu.no_avx.__fpu_fsw));    return true;
   1713                         case fpu_ftw:       value->value.uint8  = m_state.context.fpu.no_avx.__fpu_ftw;                      return true;
   1714                         case fpu_fop:       value->value.uint16 = m_state.context.fpu.no_avx.__fpu_fop;                      return true;
   1715                         case fpu_ip:        value->value.uint32 = m_state.context.fpu.no_avx.__fpu_ip;                       return true;
   1716                         case fpu_cs:        value->value.uint16 = m_state.context.fpu.no_avx.__fpu_cs;                       return true;
   1717                         case fpu_dp:        value->value.uint32 = m_state.context.fpu.no_avx.__fpu_dp;                       return true;
   1718                         case fpu_ds:        value->value.uint16 = m_state.context.fpu.no_avx.__fpu_ds;                       return true;
   1719                         case fpu_mxcsr:     value->value.uint32 = m_state.context.fpu.no_avx.__fpu_mxcsr;                    return true;
   1720                         case fpu_mxcsrmask: value->value.uint32 = m_state.context.fpu.no_avx.__fpu_mxcsrmask;                return true;
   1721 
   1722                         case fpu_stmm0:
   1723                         case fpu_stmm1:
   1724                         case fpu_stmm2:
   1725                         case fpu_stmm3:
   1726                         case fpu_stmm4:
   1727                         case fpu_stmm5:
   1728                         case fpu_stmm6:
   1729                         case fpu_stmm7:
   1730                             memcpy(&value->value.uint8, &m_state.context.fpu.no_avx.__fpu_stmm0 + (reg - fpu_stmm0), 10);
   1731                             return true;
   1732 
   1733                         case fpu_xmm0:
   1734                         case fpu_xmm1:
   1735                         case fpu_xmm2:
   1736                         case fpu_xmm3:
   1737                         case fpu_xmm4:
   1738                         case fpu_xmm5:
   1739                         case fpu_xmm6:
   1740                         case fpu_xmm7:
   1741                         case fpu_xmm8:
   1742                         case fpu_xmm9:
   1743                         case fpu_xmm10:
   1744                         case fpu_xmm11:
   1745                         case fpu_xmm12:
   1746                         case fpu_xmm13:
   1747                         case fpu_xmm14:
   1748                         case fpu_xmm15:
   1749                             memcpy(&value->value.uint8, &m_state.context.fpu.no_avx.__fpu_xmm0 + (reg - fpu_xmm0), 16);
   1750                             return true;
   1751                     }
   1752                 }
   1753                 break;
   1754 
   1755             case e_regSetEXC:
   1756                 switch (reg)
   1757                 {
   1758                 case exc_trapno:    value->value.uint32 = m_state.context.exc.__trapno; return true;
   1759                 case exc_err:       value->value.uint32 = m_state.context.exc.__err; return true;
   1760                 case exc_faultvaddr:value->value.uint64 = m_state.context.exc.__faultvaddr; return true;
   1761                 }
   1762                 break;
   1763         }
   1764     }
   1765     return false;
   1766 }
   1767 
   1768 
   1769 bool
   1770 DNBArchImplX86_64::SetRegisterValue(int set, int reg, const DNBRegisterValue *value)
   1771 {
   1772     if (set == REGISTER_SET_GENERIC)
   1773     {
   1774         switch (reg)
   1775         {
   1776             case GENERIC_REGNUM_PC:     // Program Counter
   1777                 set = e_regSetGPR;
   1778                 reg = gpr_rip;
   1779                 break;
   1780 
   1781             case GENERIC_REGNUM_SP:     // Stack Pointer
   1782                 set = e_regSetGPR;
   1783                 reg = gpr_rsp;
   1784                 break;
   1785 
   1786             case GENERIC_REGNUM_FP:     // Frame Pointer
   1787                 set = e_regSetGPR;
   1788                 reg = gpr_rbp;
   1789                 break;
   1790 
   1791             case GENERIC_REGNUM_FLAGS:  // Processor flags register
   1792                 set = e_regSetGPR;
   1793                 reg = gpr_rflags;
   1794                 break;
   1795 
   1796             case GENERIC_REGNUM_RA:     // Return Address
   1797             default:
   1798                 return false;
   1799         }
   1800     }
   1801 
   1802     if (GetRegisterState(set, false) != KERN_SUCCESS)
   1803         return false;
   1804 
   1805     bool success = false;
   1806     const DNBRegisterInfo *regInfo = m_thread->GetRegisterInfo(set, reg);
   1807     if (regInfo)
   1808     {
   1809         switch (set)
   1810         {
   1811             case e_regSetGPR:
   1812                 if (reg < k_num_gpr_registers)
   1813                 {
   1814                     ((uint64_t*)(&m_state.context.gpr))[reg] = value->value.uint64;
   1815                     success = true;
   1816                 }
   1817                 break;
   1818 
   1819             case e_regSetFPU:
   1820                 if (CPUHasAVX() || FORCE_AVX_REGS)
   1821                 {
   1822                     switch (reg)
   1823                     {
   1824                     case fpu_fcw:       *((uint16_t *)(&m_state.context.fpu.avx.__fpu_fcw)) = value->value.uint16;    success = true; break;
   1825                     case fpu_fsw:       *((uint16_t *)(&m_state.context.fpu.avx.__fpu_fsw)) = value->value.uint16;    success = true; break;
   1826                     case fpu_ftw:       m_state.context.fpu.avx.__fpu_ftw = value->value.uint8;                       success = true; break;
   1827                     case fpu_fop:       m_state.context.fpu.avx.__fpu_fop = value->value.uint16;                      success = true; break;
   1828                     case fpu_ip:        m_state.context.fpu.avx.__fpu_ip = value->value.uint32;                       success = true; break;
   1829                     case fpu_cs:        m_state.context.fpu.avx.__fpu_cs = value->value.uint16;                       success = true; break;
   1830                     case fpu_dp:        m_state.context.fpu.avx.__fpu_dp = value->value.uint32;                       success = true; break;
   1831                     case fpu_ds:        m_state.context.fpu.avx.__fpu_ds = value->value.uint16;                       success = true; break;
   1832                     case fpu_mxcsr:     m_state.context.fpu.avx.__fpu_mxcsr = value->value.uint32;                    success = true; break;
   1833                     case fpu_mxcsrmask: m_state.context.fpu.avx.__fpu_mxcsrmask = value->value.uint32;                success = true; break;
   1834 
   1835                     case fpu_stmm0:
   1836                     case fpu_stmm1:
   1837                     case fpu_stmm2:
   1838                     case fpu_stmm3:
   1839                     case fpu_stmm4:
   1840                     case fpu_stmm5:
   1841                     case fpu_stmm6:
   1842                     case fpu_stmm7:
   1843                         memcpy (&m_state.context.fpu.avx.__fpu_stmm0 + (reg - fpu_stmm0), &value->value.uint8, 10);
   1844                         success = true;
   1845                         break;
   1846 
   1847                     case fpu_xmm0:
   1848                     case fpu_xmm1:
   1849                     case fpu_xmm2:
   1850                     case fpu_xmm3:
   1851                     case fpu_xmm4:
   1852                     case fpu_xmm5:
   1853                     case fpu_xmm6:
   1854                     case fpu_xmm7:
   1855                     case fpu_xmm8:
   1856                     case fpu_xmm9:
   1857                     case fpu_xmm10:
   1858                     case fpu_xmm11:
   1859                     case fpu_xmm12:
   1860                     case fpu_xmm13:
   1861                     case fpu_xmm14:
   1862                     case fpu_xmm15:
   1863                         memcpy (&m_state.context.fpu.avx.__fpu_xmm0 + (reg - fpu_xmm0), &value->value.uint8, 16);
   1864                         success = true;
   1865                         break;
   1866 
   1867                     case fpu_ymm0:
   1868                     case fpu_ymm1:
   1869                     case fpu_ymm2:
   1870                     case fpu_ymm3:
   1871                     case fpu_ymm4:
   1872                     case fpu_ymm5:
   1873                     case fpu_ymm6:
   1874                     case fpu_ymm7:
   1875                     case fpu_ymm8:
   1876                     case fpu_ymm9:
   1877                     case fpu_ymm10:
   1878                     case fpu_ymm11:
   1879                     case fpu_ymm12:
   1880                     case fpu_ymm13:
   1881                     case fpu_ymm14:
   1882                     case fpu_ymm15:
   1883                         memcpy(&m_state.context.fpu.avx.__fpu_xmm0 + (reg - fpu_ymm0), &value->value.uint8, 16);
   1884                         memcpy(&m_state.context.fpu.avx.__fpu_ymmh0 + (reg - fpu_ymm0), (&value->value.uint8) + 16, 16);
   1885                         return true;
   1886                     }
   1887                 }
   1888                 else
   1889                 {
   1890                     switch (reg)
   1891                     {
   1892                     case fpu_fcw:       *((uint16_t *)(&m_state.context.fpu.no_avx.__fpu_fcw)) = value->value.uint16;    success = true; break;
   1893                     case fpu_fsw:       *((uint16_t *)(&m_state.context.fpu.no_avx.__fpu_fsw)) = value->value.uint16;    success = true; break;
   1894                     case fpu_ftw:       m_state.context.fpu.no_avx.__fpu_ftw = value->value.uint8;                       success = true; break;
   1895                     case fpu_fop:       m_state.context.fpu.no_avx.__fpu_fop = value->value.uint16;                      success = true; break;
   1896                     case fpu_ip:        m_state.context.fpu.no_avx.__fpu_ip = value->value.uint32;                       success = true; break;
   1897                     case fpu_cs:        m_state.context.fpu.no_avx.__fpu_cs = value->value.uint16;                       success = true; break;
   1898                     case fpu_dp:        m_state.context.fpu.no_avx.__fpu_dp = value->value.uint32;                       success = true; break;
   1899                     case fpu_ds:        m_state.context.fpu.no_avx.__fpu_ds = value->value.uint16;                       success = true; break;
   1900                     case fpu_mxcsr:     m_state.context.fpu.no_avx.__fpu_mxcsr = value->value.uint32;                    success = true; break;
   1901                     case fpu_mxcsrmask: m_state.context.fpu.no_avx.__fpu_mxcsrmask = value->value.uint32;                success = true; break;
   1902 
   1903                     case fpu_stmm0:
   1904                     case fpu_stmm1:
   1905                     case fpu_stmm2:
   1906                     case fpu_stmm3:
   1907                     case fpu_stmm4:
   1908                     case fpu_stmm5:
   1909                     case fpu_stmm6:
   1910                     case fpu_stmm7:
   1911                         memcpy (&m_state.context.fpu.no_avx.__fpu_stmm0 + (reg - fpu_stmm0), &value->value.uint8, 10);
   1912                         success = true;
   1913                         break;
   1914 
   1915                     case fpu_xmm0:
   1916                     case fpu_xmm1:
   1917                     case fpu_xmm2:
   1918                     case fpu_xmm3:
   1919                     case fpu_xmm4:
   1920                     case fpu_xmm5:
   1921                     case fpu_xmm6:
   1922                     case fpu_xmm7:
   1923                     case fpu_xmm8:
   1924                     case fpu_xmm9:
   1925                     case fpu_xmm10:
   1926                     case fpu_xmm11:
   1927                     case fpu_xmm12:
   1928                     case fpu_xmm13:
   1929                     case fpu_xmm14:
   1930                     case fpu_xmm15:
   1931                         memcpy (&m_state.context.fpu.no_avx.__fpu_xmm0 + (reg - fpu_xmm0), &value->value.uint8, 16);
   1932                         success = true;
   1933                         break;
   1934                     }
   1935                 }
   1936                 break;
   1937 
   1938             case e_regSetEXC:
   1939                 switch (reg)
   1940             {
   1941                 case exc_trapno:    m_state.context.exc.__trapno = value->value.uint32;     success = true; break;
   1942                 case exc_err:       m_state.context.exc.__err = value->value.uint32;        success = true; break;
   1943                 case exc_faultvaddr:m_state.context.exc.__faultvaddr = value->value.uint64; success = true; break;
   1944             }
   1945                 break;
   1946         }
   1947     }
   1948 
   1949     if (success)
   1950         return SetRegisterState(set) == KERN_SUCCESS;
   1951     return false;
   1952 }
   1953 
   1954 
   1955 nub_size_t
   1956 DNBArchImplX86_64::GetRegisterContext (void *buf, nub_size_t buf_len)
   1957 {
   1958     nub_size_t size = sizeof (m_state.context);
   1959 
   1960     if (buf && buf_len)
   1961     {
   1962         if (size > buf_len)
   1963             size = buf_len;
   1964 
   1965         bool force = false;
   1966         kern_return_t kret;
   1967         if ((kret = GetGPRState(force)) != KERN_SUCCESS)
   1968         {
   1969             DNBLogThreadedIf (LOG_THREAD, "DNBArchImplX86_64::GetRegisterContext (buf = %p, len = %llu) error: GPR regs failed to read: %u ", buf, (uint64_t)buf_len, kret);
   1970             size = 0;
   1971         }
   1972         else
   1973         if ((kret = GetFPUState(force)) != KERN_SUCCESS)
   1974         {
   1975             DNBLogThreadedIf (LOG_THREAD, "DNBArchImplX86_64::GetRegisterContext (buf = %p, len = %llu) error: %s regs failed to read: %u", buf, (uint64_t)buf_len, CPUHasAVX() ? "AVX" : "FPU", kret);
   1976             size = 0;
   1977         }
   1978         else
   1979         if ((kret = GetEXCState(force)) != KERN_SUCCESS)
   1980         {
   1981             DNBLogThreadedIf (LOG_THREAD, "DNBArchImplX86_64::GetRegisterContext (buf = %p, len = %llu) error: EXC regs failed to read: %u", buf, (uint64_t)buf_len, kret);
   1982             size = 0;
   1983         }
   1984         else
   1985         {
   1986             // Success
   1987             ::memcpy (buf, &m_state.context, size);
   1988         }
   1989     }
   1990     DNBLogThreadedIf (LOG_THREAD, "DNBArchImplX86_64::GetRegisterContext (buf = %p, len = %llu) => %llu", buf, (uint64_t)buf_len, (uint64_t)size);
   1991     // Return the size of the register context even if NULL was passed in
   1992     return size;
   1993 }
   1994 
   1995 nub_size_t
   1996 DNBArchImplX86_64::SetRegisterContext (const void *buf, nub_size_t buf_len)
   1997 {
   1998     nub_size_t size = sizeof (m_state.context);
   1999     if (buf == NULL || buf_len == 0)
   2000         size = 0;
   2001 
   2002     if (size)
   2003     {
   2004         if (size > buf_len)
   2005             size = buf_len;
   2006 
   2007         ::memcpy (&m_state.context, buf, size);
   2008         kern_return_t kret;
   2009         if ((kret = SetGPRState()) != KERN_SUCCESS)
   2010             DNBLogThreadedIf (LOG_THREAD, "DNBArchImplX86_64::SetRegisterContext (buf = %p, len = %llu) error: GPR regs failed to write: %u", buf, (uint64_t)buf_len, kret);
   2011         if ((kret = SetFPUState()) != KERN_SUCCESS)
   2012             DNBLogThreadedIf (LOG_THREAD, "DNBArchImplX86_64::SetRegisterContext (buf = %p, len = %llu) error: %s regs failed to write: %u", buf, (uint64_t)buf_len, CPUHasAVX() ? "AVX" : "FPU", kret);
   2013         if ((kret = SetEXCState()) != KERN_SUCCESS)
   2014             DNBLogThreadedIf (LOG_THREAD, "DNBArchImplX86_64::SetRegisterContext (buf = %p, len = %llu) error: EXP regs failed to write: %u", buf, (uint64_t)buf_len, kret);
   2015     }
   2016     DNBLogThreadedIf (LOG_THREAD, "DNBArchImplX86_64::SetRegisterContext (buf = %p, len = %llu) => %llu", buf, (uint64_t)buf_len, (uint64_t)size);
   2017     return size;
   2018 }
   2019 
   2020 
   2021 kern_return_t
   2022 DNBArchImplX86_64::GetRegisterState(int set, bool force)
   2023 {
   2024     switch (set)
   2025     {
   2026         case e_regSetALL:    return GetGPRState(force) | GetFPUState(force) | GetEXCState(force);
   2027         case e_regSetGPR:    return GetGPRState(force);
   2028         case e_regSetFPU:    return GetFPUState(force);
   2029         case e_regSetEXC:    return GetEXCState(force);
   2030         default: break;
   2031     }
   2032     return KERN_INVALID_ARGUMENT;
   2033 }
   2034 
   2035 kern_return_t
   2036 DNBArchImplX86_64::SetRegisterState(int set)
   2037 {
   2038     // Make sure we have a valid context to set.
   2039     if (RegisterSetStateIsValid(set))
   2040     {
   2041         switch (set)
   2042         {
   2043             case e_regSetALL:    return SetGPRState() | SetFPUState() | SetEXCState();
   2044             case e_regSetGPR:    return SetGPRState();
   2045             case e_regSetFPU:    return SetFPUState();
   2046             case e_regSetEXC:    return SetEXCState();
   2047             default: break;
   2048         }
   2049     }
   2050     return KERN_INVALID_ARGUMENT;
   2051 }
   2052 
   2053 bool
   2054 DNBArchImplX86_64::RegisterSetStateIsValid (int set) const
   2055 {
   2056     return m_state.RegsAreValid(set);
   2057 }
   2058 
   2059 
   2060 
   2061 #endif    // #if defined (__i386__) || defined (__x86_64__)
   2062