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1 | b4608c04 | bellard | /*
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2 | b4608c04 | bellard | * gdb server stub
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3 | 5fafdf24 | ths | *
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4 | 3475187d | bellard | * Copyright (c) 2003-2005 Fabrice Bellard
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5 | b4608c04 | bellard | *
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6 | b4608c04 | bellard | * This library is free software; you can redistribute it and/or
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7 | b4608c04 | bellard | * modify it under the terms of the GNU Lesser General Public
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8 | b4608c04 | bellard | * License as published by the Free Software Foundation; either
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9 | b4608c04 | bellard | * version 2 of the License, or (at your option) any later version.
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10 | b4608c04 | bellard | *
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11 | b4608c04 | bellard | * This library is distributed in the hope that it will be useful,
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12 | b4608c04 | bellard | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | b4608c04 | bellard | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 | b4608c04 | bellard | * Lesser General Public License for more details.
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15 | b4608c04 | bellard | *
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16 | b4608c04 | bellard | * You should have received a copy of the GNU Lesser General Public
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17 | b4608c04 | bellard | * License along with this library; if not, write to the Free Software
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18 | fad6cb1a | aurel32 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA
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19 | b4608c04 | bellard | */
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20 | 978efd6a | pbrook | #include "config.h" |
21 | 56aebc89 | pbrook | #include "qemu-common.h" |
22 | 1fddef4b | bellard | #ifdef CONFIG_USER_ONLY
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23 | 1fddef4b | bellard | #include <stdlib.h> |
24 | 1fddef4b | bellard | #include <stdio.h> |
25 | 1fddef4b | bellard | #include <stdarg.h> |
26 | 1fddef4b | bellard | #include <string.h> |
27 | 1fddef4b | bellard | #include <errno.h> |
28 | 1fddef4b | bellard | #include <unistd.h> |
29 | 978efd6a | pbrook | #include <fcntl.h> |
30 | 1fddef4b | bellard | |
31 | 1fddef4b | bellard | #include "qemu.h" |
32 | 1fddef4b | bellard | #else
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33 | 8a34a0fb | aliguori | #include "monitor.h" |
34 | 87ecb68b | pbrook | #include "qemu-char.h" |
35 | 87ecb68b | pbrook | #include "sysemu.h" |
36 | 87ecb68b | pbrook | #include "gdbstub.h" |
37 | 1fddef4b | bellard | #endif
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38 | 67b915a5 | bellard | |
39 | 56aebc89 | pbrook | #define MAX_PACKET_LENGTH 4096 |
40 | 56aebc89 | pbrook | |
41 | 8f447cc7 | bellard | #include "qemu_socket.h" |
42 | ca587a8e | aurel32 | |
43 | ca587a8e | aurel32 | |
44 | ca587a8e | aurel32 | enum {
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45 | ca587a8e | aurel32 | GDB_SIGNAL_0 = 0,
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46 | ca587a8e | aurel32 | GDB_SIGNAL_INT = 2,
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47 | ca587a8e | aurel32 | GDB_SIGNAL_TRAP = 5,
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48 | ca587a8e | aurel32 | GDB_SIGNAL_UNKNOWN = 143
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49 | ca587a8e | aurel32 | }; |
50 | ca587a8e | aurel32 | |
51 | ca587a8e | aurel32 | #ifdef CONFIG_USER_ONLY
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52 | ca587a8e | aurel32 | |
53 | ca587a8e | aurel32 | /* Map target signal numbers to GDB protocol signal numbers and vice
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54 | ca587a8e | aurel32 | * versa. For user emulation's currently supported systems, we can
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55 | ca587a8e | aurel32 | * assume most signals are defined.
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56 | ca587a8e | aurel32 | */
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57 | ca587a8e | aurel32 | |
58 | ca587a8e | aurel32 | static int gdb_signal_table[] = { |
59 | ca587a8e | aurel32 | 0,
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60 | ca587a8e | aurel32 | TARGET_SIGHUP, |
61 | ca587a8e | aurel32 | TARGET_SIGINT, |
62 | ca587a8e | aurel32 | TARGET_SIGQUIT, |
63 | ca587a8e | aurel32 | TARGET_SIGILL, |
64 | ca587a8e | aurel32 | TARGET_SIGTRAP, |
65 | ca587a8e | aurel32 | TARGET_SIGABRT, |
66 | ca587a8e | aurel32 | -1, /* SIGEMT */ |
67 | ca587a8e | aurel32 | TARGET_SIGFPE, |
68 | ca587a8e | aurel32 | TARGET_SIGKILL, |
69 | ca587a8e | aurel32 | TARGET_SIGBUS, |
70 | ca587a8e | aurel32 | TARGET_SIGSEGV, |
71 | ca587a8e | aurel32 | TARGET_SIGSYS, |
72 | ca587a8e | aurel32 | TARGET_SIGPIPE, |
73 | ca587a8e | aurel32 | TARGET_SIGALRM, |
74 | ca587a8e | aurel32 | TARGET_SIGTERM, |
75 | ca587a8e | aurel32 | TARGET_SIGURG, |
76 | ca587a8e | aurel32 | TARGET_SIGSTOP, |
77 | ca587a8e | aurel32 | TARGET_SIGTSTP, |
78 | ca587a8e | aurel32 | TARGET_SIGCONT, |
79 | ca587a8e | aurel32 | TARGET_SIGCHLD, |
80 | ca587a8e | aurel32 | TARGET_SIGTTIN, |
81 | ca587a8e | aurel32 | TARGET_SIGTTOU, |
82 | ca587a8e | aurel32 | TARGET_SIGIO, |
83 | ca587a8e | aurel32 | TARGET_SIGXCPU, |
84 | ca587a8e | aurel32 | TARGET_SIGXFSZ, |
85 | ca587a8e | aurel32 | TARGET_SIGVTALRM, |
86 | ca587a8e | aurel32 | TARGET_SIGPROF, |
87 | ca587a8e | aurel32 | TARGET_SIGWINCH, |
88 | ca587a8e | aurel32 | -1, /* SIGLOST */ |
89 | ca587a8e | aurel32 | TARGET_SIGUSR1, |
90 | ca587a8e | aurel32 | TARGET_SIGUSR2, |
91 | c72d5bf8 | blueswir1 | #ifdef TARGET_SIGPWR
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92 | ca587a8e | aurel32 | TARGET_SIGPWR, |
93 | c72d5bf8 | blueswir1 | #else
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94 | c72d5bf8 | blueswir1 | -1,
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95 | c72d5bf8 | blueswir1 | #endif
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96 | ca587a8e | aurel32 | -1, /* SIGPOLL */ |
97 | ca587a8e | aurel32 | -1,
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98 | ca587a8e | aurel32 | -1,
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99 | ca587a8e | aurel32 | -1,
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100 | ca587a8e | aurel32 | -1,
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101 | ca587a8e | aurel32 | -1,
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102 | ca587a8e | aurel32 | -1,
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103 | ca587a8e | aurel32 | -1,
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104 | ca587a8e | aurel32 | -1,
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105 | ca587a8e | aurel32 | -1,
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106 | ca587a8e | aurel32 | -1,
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107 | ca587a8e | aurel32 | -1,
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108 | c72d5bf8 | blueswir1 | #ifdef __SIGRTMIN
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109 | ca587a8e | aurel32 | __SIGRTMIN + 1,
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110 | ca587a8e | aurel32 | __SIGRTMIN + 2,
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111 | ca587a8e | aurel32 | __SIGRTMIN + 3,
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112 | ca587a8e | aurel32 | __SIGRTMIN + 4,
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113 | ca587a8e | aurel32 | __SIGRTMIN + 5,
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114 | ca587a8e | aurel32 | __SIGRTMIN + 6,
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115 | ca587a8e | aurel32 | __SIGRTMIN + 7,
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116 | ca587a8e | aurel32 | __SIGRTMIN + 8,
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117 | ca587a8e | aurel32 | __SIGRTMIN + 9,
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118 | ca587a8e | aurel32 | __SIGRTMIN + 10,
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119 | ca587a8e | aurel32 | __SIGRTMIN + 11,
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120 | ca587a8e | aurel32 | __SIGRTMIN + 12,
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121 | ca587a8e | aurel32 | __SIGRTMIN + 13,
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122 | ca587a8e | aurel32 | __SIGRTMIN + 14,
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123 | ca587a8e | aurel32 | __SIGRTMIN + 15,
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124 | ca587a8e | aurel32 | __SIGRTMIN + 16,
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125 | ca587a8e | aurel32 | __SIGRTMIN + 17,
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126 | ca587a8e | aurel32 | __SIGRTMIN + 18,
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127 | ca587a8e | aurel32 | __SIGRTMIN + 19,
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128 | ca587a8e | aurel32 | __SIGRTMIN + 20,
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129 | ca587a8e | aurel32 | __SIGRTMIN + 21,
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130 | ca587a8e | aurel32 | __SIGRTMIN + 22,
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131 | ca587a8e | aurel32 | __SIGRTMIN + 23,
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132 | ca587a8e | aurel32 | __SIGRTMIN + 24,
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133 | ca587a8e | aurel32 | __SIGRTMIN + 25,
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134 | ca587a8e | aurel32 | __SIGRTMIN + 26,
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135 | ca587a8e | aurel32 | __SIGRTMIN + 27,
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136 | ca587a8e | aurel32 | __SIGRTMIN + 28,
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137 | ca587a8e | aurel32 | __SIGRTMIN + 29,
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138 | ca587a8e | aurel32 | __SIGRTMIN + 30,
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139 | ca587a8e | aurel32 | __SIGRTMIN + 31,
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140 | ca587a8e | aurel32 | -1, /* SIGCANCEL */ |
141 | ca587a8e | aurel32 | __SIGRTMIN, |
142 | ca587a8e | aurel32 | __SIGRTMIN + 32,
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143 | ca587a8e | aurel32 | __SIGRTMIN + 33,
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144 | ca587a8e | aurel32 | __SIGRTMIN + 34,
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145 | ca587a8e | aurel32 | __SIGRTMIN + 35,
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146 | ca587a8e | aurel32 | __SIGRTMIN + 36,
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147 | ca587a8e | aurel32 | __SIGRTMIN + 37,
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148 | ca587a8e | aurel32 | __SIGRTMIN + 38,
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149 | ca587a8e | aurel32 | __SIGRTMIN + 39,
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150 | ca587a8e | aurel32 | __SIGRTMIN + 40,
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151 | ca587a8e | aurel32 | __SIGRTMIN + 41,
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152 | ca587a8e | aurel32 | __SIGRTMIN + 42,
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153 | ca587a8e | aurel32 | __SIGRTMIN + 43,
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154 | ca587a8e | aurel32 | __SIGRTMIN + 44,
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155 | ca587a8e | aurel32 | __SIGRTMIN + 45,
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156 | ca587a8e | aurel32 | __SIGRTMIN + 46,
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157 | ca587a8e | aurel32 | __SIGRTMIN + 47,
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158 | ca587a8e | aurel32 | __SIGRTMIN + 48,
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159 | ca587a8e | aurel32 | __SIGRTMIN + 49,
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160 | ca587a8e | aurel32 | __SIGRTMIN + 50,
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161 | ca587a8e | aurel32 | __SIGRTMIN + 51,
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162 | ca587a8e | aurel32 | __SIGRTMIN + 52,
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163 | ca587a8e | aurel32 | __SIGRTMIN + 53,
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164 | ca587a8e | aurel32 | __SIGRTMIN + 54,
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165 | ca587a8e | aurel32 | __SIGRTMIN + 55,
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166 | ca587a8e | aurel32 | __SIGRTMIN + 56,
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167 | ca587a8e | aurel32 | __SIGRTMIN + 57,
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168 | ca587a8e | aurel32 | __SIGRTMIN + 58,
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169 | ca587a8e | aurel32 | __SIGRTMIN + 59,
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170 | ca587a8e | aurel32 | __SIGRTMIN + 60,
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171 | ca587a8e | aurel32 | __SIGRTMIN + 61,
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172 | ca587a8e | aurel32 | __SIGRTMIN + 62,
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173 | ca587a8e | aurel32 | __SIGRTMIN + 63,
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174 | ca587a8e | aurel32 | __SIGRTMIN + 64,
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175 | ca587a8e | aurel32 | __SIGRTMIN + 65,
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176 | ca587a8e | aurel32 | __SIGRTMIN + 66,
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177 | ca587a8e | aurel32 | __SIGRTMIN + 67,
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178 | ca587a8e | aurel32 | __SIGRTMIN + 68,
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179 | ca587a8e | aurel32 | __SIGRTMIN + 69,
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180 | ca587a8e | aurel32 | __SIGRTMIN + 70,
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181 | ca587a8e | aurel32 | __SIGRTMIN + 71,
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182 | ca587a8e | aurel32 | __SIGRTMIN + 72,
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183 | ca587a8e | aurel32 | __SIGRTMIN + 73,
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184 | ca587a8e | aurel32 | __SIGRTMIN + 74,
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185 | ca587a8e | aurel32 | __SIGRTMIN + 75,
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186 | ca587a8e | aurel32 | __SIGRTMIN + 76,
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187 | ca587a8e | aurel32 | __SIGRTMIN + 77,
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188 | ca587a8e | aurel32 | __SIGRTMIN + 78,
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189 | ca587a8e | aurel32 | __SIGRTMIN + 79,
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190 | ca587a8e | aurel32 | __SIGRTMIN + 80,
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191 | ca587a8e | aurel32 | __SIGRTMIN + 81,
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192 | ca587a8e | aurel32 | __SIGRTMIN + 82,
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193 | ca587a8e | aurel32 | __SIGRTMIN + 83,
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194 | ca587a8e | aurel32 | __SIGRTMIN + 84,
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195 | ca587a8e | aurel32 | __SIGRTMIN + 85,
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196 | ca587a8e | aurel32 | __SIGRTMIN + 86,
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197 | ca587a8e | aurel32 | __SIGRTMIN + 87,
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198 | ca587a8e | aurel32 | __SIGRTMIN + 88,
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199 | ca587a8e | aurel32 | __SIGRTMIN + 89,
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200 | ca587a8e | aurel32 | __SIGRTMIN + 90,
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201 | ca587a8e | aurel32 | __SIGRTMIN + 91,
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202 | ca587a8e | aurel32 | __SIGRTMIN + 92,
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203 | ca587a8e | aurel32 | __SIGRTMIN + 93,
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204 | ca587a8e | aurel32 | __SIGRTMIN + 94,
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205 | ca587a8e | aurel32 | __SIGRTMIN + 95,
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206 | ca587a8e | aurel32 | -1, /* SIGINFO */ |
207 | ca587a8e | aurel32 | -1, /* UNKNOWN */ |
208 | ca587a8e | aurel32 | -1, /* DEFAULT */ |
209 | ca587a8e | aurel32 | -1,
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210 | ca587a8e | aurel32 | -1,
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211 | ca587a8e | aurel32 | -1,
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212 | ca587a8e | aurel32 | -1,
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213 | ca587a8e | aurel32 | -1,
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214 | ca587a8e | aurel32 | -1
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215 | c72d5bf8 | blueswir1 | #endif
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216 | ca587a8e | aurel32 | }; |
217 | 8f447cc7 | bellard | #else
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218 | ca587a8e | aurel32 | /* In system mode we only need SIGINT and SIGTRAP; other signals
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219 | ca587a8e | aurel32 | are not yet supported. */
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220 | ca587a8e | aurel32 | |
221 | ca587a8e | aurel32 | enum {
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222 | ca587a8e | aurel32 | TARGET_SIGINT = 2,
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223 | ca587a8e | aurel32 | TARGET_SIGTRAP = 5
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224 | ca587a8e | aurel32 | }; |
225 | ca587a8e | aurel32 | |
226 | ca587a8e | aurel32 | static int gdb_signal_table[] = { |
227 | ca587a8e | aurel32 | -1,
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228 | ca587a8e | aurel32 | -1,
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229 | ca587a8e | aurel32 | TARGET_SIGINT, |
230 | ca587a8e | aurel32 | -1,
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231 | ca587a8e | aurel32 | -1,
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232 | ca587a8e | aurel32 | TARGET_SIGTRAP |
233 | ca587a8e | aurel32 | }; |
234 | ca587a8e | aurel32 | #endif
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235 | ca587a8e | aurel32 | |
236 | ca587a8e | aurel32 | #ifdef CONFIG_USER_ONLY
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237 | ca587a8e | aurel32 | static int target_signal_to_gdb (int sig) |
238 | ca587a8e | aurel32 | { |
239 | ca587a8e | aurel32 | int i;
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240 | ca587a8e | aurel32 | for (i = 0; i < ARRAY_SIZE (gdb_signal_table); i++) |
241 | ca587a8e | aurel32 | if (gdb_signal_table[i] == sig)
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242 | ca587a8e | aurel32 | return i;
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243 | ca587a8e | aurel32 | return GDB_SIGNAL_UNKNOWN;
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244 | ca587a8e | aurel32 | } |
245 | 8f447cc7 | bellard | #endif
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246 | b4608c04 | bellard | |
247 | ca587a8e | aurel32 | static int gdb_signal_to_target (int sig) |
248 | ca587a8e | aurel32 | { |
249 | ca587a8e | aurel32 | if (sig < ARRAY_SIZE (gdb_signal_table))
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250 | ca587a8e | aurel32 | return gdb_signal_table[sig];
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251 | ca587a8e | aurel32 | else
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252 | ca587a8e | aurel32 | return -1; |
253 | ca587a8e | aurel32 | } |
254 | ca587a8e | aurel32 | |
255 | 4abe615b | bellard | //#define DEBUG_GDB
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256 | b4608c04 | bellard | |
257 | 56aebc89 | pbrook | typedef struct GDBRegisterState { |
258 | 56aebc89 | pbrook | int base_reg;
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259 | 56aebc89 | pbrook | int num_regs;
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260 | 56aebc89 | pbrook | gdb_reg_cb get_reg; |
261 | 56aebc89 | pbrook | gdb_reg_cb set_reg; |
262 | 56aebc89 | pbrook | const char *xml; |
263 | 56aebc89 | pbrook | struct GDBRegisterState *next;
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264 | 56aebc89 | pbrook | } GDBRegisterState; |
265 | 56aebc89 | pbrook | |
266 | 858693c6 | bellard | enum RSState {
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267 | 858693c6 | bellard | RS_IDLE, |
268 | 858693c6 | bellard | RS_GETLINE, |
269 | 858693c6 | bellard | RS_CHKSUM1, |
270 | 858693c6 | bellard | RS_CHKSUM2, |
271 | a2d1ebaf | pbrook | RS_SYSCALL, |
272 | 858693c6 | bellard | }; |
273 | 858693c6 | bellard | typedef struct GDBState { |
274 | 880a7578 | aliguori | CPUState *c_cpu; /* current CPU for step/continue ops */
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275 | 880a7578 | aliguori | CPUState *g_cpu; /* current CPU for other ops */
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276 | 880a7578 | aliguori | CPUState *query_cpu; /* for q{f|s}ThreadInfo */
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277 | 41625033 | bellard | enum RSState state; /* parsing state */ |
278 | 56aebc89 | pbrook | char line_buf[MAX_PACKET_LENGTH];
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279 | 858693c6 | bellard | int line_buf_index;
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280 | 858693c6 | bellard | int line_csum;
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281 | 56aebc89 | pbrook | uint8_t last_packet[MAX_PACKET_LENGTH + 4];
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282 | 4046d913 | pbrook | int last_packet_len;
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283 | 1f487ee9 | edgar_igl | int signal;
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284 | 41625033 | bellard | #ifdef CONFIG_USER_ONLY
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285 | 4046d913 | pbrook | int fd;
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286 | 41625033 | bellard | int running_state;
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287 | 4046d913 | pbrook | #else
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288 | 4046d913 | pbrook | CharDriverState *chr; |
289 | 8a34a0fb | aliguori | CharDriverState *mon_chr; |
290 | 41625033 | bellard | #endif
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291 | 858693c6 | bellard | } GDBState; |
292 | b4608c04 | bellard | |
293 | 60897d36 | edgar_igl | /* By default use no IRQs and no timers while single stepping so as to
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294 | 60897d36 | edgar_igl | * make single stepping like an ICE HW step.
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295 | 60897d36 | edgar_igl | */
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296 | 60897d36 | edgar_igl | static int sstep_flags = SSTEP_ENABLE|SSTEP_NOIRQ|SSTEP_NOTIMER; |
297 | 60897d36 | edgar_igl | |
298 | 880a7578 | aliguori | static GDBState *gdbserver_state;
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299 | 880a7578 | aliguori | |
300 | 56aebc89 | pbrook | /* This is an ugly hack to cope with both new and old gdb.
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301 | 56aebc89 | pbrook | If gdb sends qXfer:features:read then assume we're talking to a newish
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302 | 56aebc89 | pbrook | gdb that understands target descriptions. */
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303 | 56aebc89 | pbrook | static int gdb_has_xml; |
304 | 56aebc89 | pbrook | |
305 | 1fddef4b | bellard | #ifdef CONFIG_USER_ONLY
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306 | 4046d913 | pbrook | /* XXX: This is not thread safe. Do we care? */
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307 | 4046d913 | pbrook | static int gdbserver_fd = -1; |
308 | 4046d913 | pbrook | |
309 | 858693c6 | bellard | static int get_char(GDBState *s) |
310 | b4608c04 | bellard | { |
311 | b4608c04 | bellard | uint8_t ch; |
312 | b4608c04 | bellard | int ret;
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313 | b4608c04 | bellard | |
314 | b4608c04 | bellard | for(;;) {
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315 | 8f447cc7 | bellard | ret = recv(s->fd, &ch, 1, 0); |
316 | b4608c04 | bellard | if (ret < 0) { |
317 | 1f487ee9 | edgar_igl | if (errno == ECONNRESET)
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318 | 1f487ee9 | edgar_igl | s->fd = -1;
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319 | b4608c04 | bellard | if (errno != EINTR && errno != EAGAIN)
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320 | b4608c04 | bellard | return -1; |
321 | b4608c04 | bellard | } else if (ret == 0) { |
322 | 1f487ee9 | edgar_igl | close(s->fd); |
323 | 1f487ee9 | edgar_igl | s->fd = -1;
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324 | b4608c04 | bellard | return -1; |
325 | b4608c04 | bellard | } else {
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326 | b4608c04 | bellard | break;
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327 | b4608c04 | bellard | } |
328 | b4608c04 | bellard | } |
329 | b4608c04 | bellard | return ch;
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330 | b4608c04 | bellard | } |
331 | 4046d913 | pbrook | #endif
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332 | b4608c04 | bellard | |
333 | a2d1ebaf | pbrook | static gdb_syscall_complete_cb gdb_current_syscall_cb;
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334 | a2d1ebaf | pbrook | |
335 | a2d1ebaf | pbrook | enum {
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336 | a2d1ebaf | pbrook | GDB_SYS_UNKNOWN, |
337 | a2d1ebaf | pbrook | GDB_SYS_ENABLED, |
338 | a2d1ebaf | pbrook | GDB_SYS_DISABLED, |
339 | a2d1ebaf | pbrook | } gdb_syscall_mode; |
340 | a2d1ebaf | pbrook | |
341 | a2d1ebaf | pbrook | /* If gdb is connected when the first semihosting syscall occurs then use
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342 | a2d1ebaf | pbrook | remote gdb syscalls. Otherwise use native file IO. */
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343 | a2d1ebaf | pbrook | int use_gdb_syscalls(void) |
344 | a2d1ebaf | pbrook | { |
345 | a2d1ebaf | pbrook | if (gdb_syscall_mode == GDB_SYS_UNKNOWN) {
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346 | 880a7578 | aliguori | gdb_syscall_mode = (gdbserver_state ? GDB_SYS_ENABLED |
347 | 880a7578 | aliguori | : GDB_SYS_DISABLED); |
348 | a2d1ebaf | pbrook | } |
349 | a2d1ebaf | pbrook | return gdb_syscall_mode == GDB_SYS_ENABLED;
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350 | a2d1ebaf | pbrook | } |
351 | a2d1ebaf | pbrook | |
352 | ba70a624 | edgar_igl | /* Resume execution. */
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353 | ba70a624 | edgar_igl | static inline void gdb_continue(GDBState *s) |
354 | ba70a624 | edgar_igl | { |
355 | ba70a624 | edgar_igl | #ifdef CONFIG_USER_ONLY
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356 | ba70a624 | edgar_igl | s->running_state = 1;
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357 | ba70a624 | edgar_igl | #else
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358 | ba70a624 | edgar_igl | vm_start(); |
359 | ba70a624 | edgar_igl | #endif
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360 | ba70a624 | edgar_igl | } |
361 | ba70a624 | edgar_igl | |
362 | 858693c6 | bellard | static void put_buffer(GDBState *s, const uint8_t *buf, int len) |
363 | b4608c04 | bellard | { |
364 | 4046d913 | pbrook | #ifdef CONFIG_USER_ONLY
|
365 | b4608c04 | bellard | int ret;
|
366 | b4608c04 | bellard | |
367 | b4608c04 | bellard | while (len > 0) { |
368 | 8f447cc7 | bellard | ret = send(s->fd, buf, len, 0);
|
369 | b4608c04 | bellard | if (ret < 0) { |
370 | b4608c04 | bellard | if (errno != EINTR && errno != EAGAIN)
|
371 | b4608c04 | bellard | return;
|
372 | b4608c04 | bellard | } else {
|
373 | b4608c04 | bellard | buf += ret; |
374 | b4608c04 | bellard | len -= ret; |
375 | b4608c04 | bellard | } |
376 | b4608c04 | bellard | } |
377 | 4046d913 | pbrook | #else
|
378 | 4046d913 | pbrook | qemu_chr_write(s->chr, buf, len); |
379 | 4046d913 | pbrook | #endif
|
380 | b4608c04 | bellard | } |
381 | b4608c04 | bellard | |
382 | b4608c04 | bellard | static inline int fromhex(int v) |
383 | b4608c04 | bellard | { |
384 | b4608c04 | bellard | if (v >= '0' && v <= '9') |
385 | b4608c04 | bellard | return v - '0'; |
386 | b4608c04 | bellard | else if (v >= 'A' && v <= 'F') |
387 | b4608c04 | bellard | return v - 'A' + 10; |
388 | b4608c04 | bellard | else if (v >= 'a' && v <= 'f') |
389 | b4608c04 | bellard | return v - 'a' + 10; |
390 | b4608c04 | bellard | else
|
391 | b4608c04 | bellard | return 0; |
392 | b4608c04 | bellard | } |
393 | b4608c04 | bellard | |
394 | b4608c04 | bellard | static inline int tohex(int v) |
395 | b4608c04 | bellard | { |
396 | b4608c04 | bellard | if (v < 10) |
397 | b4608c04 | bellard | return v + '0'; |
398 | b4608c04 | bellard | else
|
399 | b4608c04 | bellard | return v - 10 + 'a'; |
400 | b4608c04 | bellard | } |
401 | b4608c04 | bellard | |
402 | b4608c04 | bellard | static void memtohex(char *buf, const uint8_t *mem, int len) |
403 | b4608c04 | bellard | { |
404 | b4608c04 | bellard | int i, c;
|
405 | b4608c04 | bellard | char *q;
|
406 | b4608c04 | bellard | q = buf; |
407 | b4608c04 | bellard | for(i = 0; i < len; i++) { |
408 | b4608c04 | bellard | c = mem[i]; |
409 | b4608c04 | bellard | *q++ = tohex(c >> 4);
|
410 | b4608c04 | bellard | *q++ = tohex(c & 0xf);
|
411 | b4608c04 | bellard | } |
412 | b4608c04 | bellard | *q = '\0';
|
413 | b4608c04 | bellard | } |
414 | b4608c04 | bellard | |
415 | b4608c04 | bellard | static void hextomem(uint8_t *mem, const char *buf, int len) |
416 | b4608c04 | bellard | { |
417 | b4608c04 | bellard | int i;
|
418 | b4608c04 | bellard | |
419 | b4608c04 | bellard | for(i = 0; i < len; i++) { |
420 | b4608c04 | bellard | mem[i] = (fromhex(buf[0]) << 4) | fromhex(buf[1]); |
421 | b4608c04 | bellard | buf += 2;
|
422 | b4608c04 | bellard | } |
423 | b4608c04 | bellard | } |
424 | b4608c04 | bellard | |
425 | b4608c04 | bellard | /* return -1 if error, 0 if OK */
|
426 | 56aebc89 | pbrook | static int put_packet_binary(GDBState *s, const char *buf, int len) |
427 | b4608c04 | bellard | { |
428 | 56aebc89 | pbrook | int csum, i;
|
429 | 60fe76f3 | ths | uint8_t *p; |
430 | b4608c04 | bellard | |
431 | b4608c04 | bellard | for(;;) {
|
432 | 4046d913 | pbrook | p = s->last_packet; |
433 | 4046d913 | pbrook | *(p++) = '$';
|
434 | 4046d913 | pbrook | memcpy(p, buf, len); |
435 | 4046d913 | pbrook | p += len; |
436 | b4608c04 | bellard | csum = 0;
|
437 | b4608c04 | bellard | for(i = 0; i < len; i++) { |
438 | b4608c04 | bellard | csum += buf[i]; |
439 | b4608c04 | bellard | } |
440 | 4046d913 | pbrook | *(p++) = '#';
|
441 | 4046d913 | pbrook | *(p++) = tohex((csum >> 4) & 0xf); |
442 | 4046d913 | pbrook | *(p++) = tohex((csum) & 0xf);
|
443 | b4608c04 | bellard | |
444 | 4046d913 | pbrook | s->last_packet_len = p - s->last_packet; |
445 | ffe8ab83 | ths | put_buffer(s, (uint8_t *)s->last_packet, s->last_packet_len); |
446 | b4608c04 | bellard | |
447 | 4046d913 | pbrook | #ifdef CONFIG_USER_ONLY
|
448 | 4046d913 | pbrook | i = get_char(s); |
449 | 4046d913 | pbrook | if (i < 0) |
450 | b4608c04 | bellard | return -1; |
451 | 4046d913 | pbrook | if (i == '+') |
452 | b4608c04 | bellard | break;
|
453 | 4046d913 | pbrook | #else
|
454 | 4046d913 | pbrook | break;
|
455 | 4046d913 | pbrook | #endif
|
456 | b4608c04 | bellard | } |
457 | b4608c04 | bellard | return 0; |
458 | b4608c04 | bellard | } |
459 | b4608c04 | bellard | |
460 | 56aebc89 | pbrook | /* return -1 if error, 0 if OK */
|
461 | 56aebc89 | pbrook | static int put_packet(GDBState *s, const char *buf) |
462 | 56aebc89 | pbrook | { |
463 | 56aebc89 | pbrook | #ifdef DEBUG_GDB
|
464 | 56aebc89 | pbrook | printf("reply='%s'\n", buf);
|
465 | 56aebc89 | pbrook | #endif
|
466 | 79808573 | bellard | |
467 | 56aebc89 | pbrook | return put_packet_binary(s, buf, strlen(buf));
|
468 | 56aebc89 | pbrook | } |
469 | 56aebc89 | pbrook | |
470 | 56aebc89 | pbrook | /* The GDB remote protocol transfers values in target byte order. This means
|
471 | 56aebc89 | pbrook | we can use the raw memory access routines to access the value buffer.
|
472 | 56aebc89 | pbrook | Conveniently, these also handle the case where the buffer is mis-aligned.
|
473 | 56aebc89 | pbrook | */
|
474 | 56aebc89 | pbrook | #define GET_REG8(val) do { \ |
475 | 56aebc89 | pbrook | stb_p(mem_buf, val); \ |
476 | 56aebc89 | pbrook | return 1; \ |
477 | 56aebc89 | pbrook | } while(0) |
478 | 56aebc89 | pbrook | #define GET_REG16(val) do { \ |
479 | 56aebc89 | pbrook | stw_p(mem_buf, val); \ |
480 | 56aebc89 | pbrook | return 2; \ |
481 | 56aebc89 | pbrook | } while(0) |
482 | 56aebc89 | pbrook | #define GET_REG32(val) do { \ |
483 | 56aebc89 | pbrook | stl_p(mem_buf, val); \ |
484 | 56aebc89 | pbrook | return 4; \ |
485 | 56aebc89 | pbrook | } while(0) |
486 | 56aebc89 | pbrook | #define GET_REG64(val) do { \ |
487 | 56aebc89 | pbrook | stq_p(mem_buf, val); \ |
488 | 56aebc89 | pbrook | return 8; \ |
489 | 56aebc89 | pbrook | } while(0) |
490 | 56aebc89 | pbrook | |
491 | 56aebc89 | pbrook | #if TARGET_LONG_BITS == 64 |
492 | 56aebc89 | pbrook | #define GET_REGL(val) GET_REG64(val)
|
493 | 56aebc89 | pbrook | #define ldtul_p(addr) ldq_p(addr)
|
494 | 56aebc89 | pbrook | #else
|
495 | 56aebc89 | pbrook | #define GET_REGL(val) GET_REG32(val)
|
496 | 56aebc89 | pbrook | #define ldtul_p(addr) ldl_p(addr)
|
497 | 79808573 | bellard | #endif
|
498 | 79808573 | bellard | |
499 | 56aebc89 | pbrook | #if defined(TARGET_I386)
|
500 | 5ad265ee | balrog | |
501 | 5ad265ee | balrog | #ifdef TARGET_X86_64
|
502 | 56aebc89 | pbrook | static const int gpr_map[16] = { |
503 | 56aebc89 | pbrook | R_EAX, R_EBX, R_ECX, R_EDX, R_ESI, R_EDI, R_EBP, R_ESP, |
504 | 56aebc89 | pbrook | 8, 9, 10, 11, 12, 13, 14, 15 |
505 | 56aebc89 | pbrook | }; |
506 | 79808573 | bellard | #else
|
507 | 56aebc89 | pbrook | static const int gpr_map[8] = {0, 1, 2, 3, 4, 5, 6, 7}; |
508 | 79808573 | bellard | #endif
|
509 | 79808573 | bellard | |
510 | 56aebc89 | pbrook | #define NUM_CORE_REGS (CPU_NB_REGS * 2 + 25) |
511 | 56aebc89 | pbrook | |
512 | 56aebc89 | pbrook | static int cpu_gdb_read_register(CPUState *env, uint8_t *mem_buf, int n) |
513 | 79808573 | bellard | { |
514 | 56aebc89 | pbrook | if (n < CPU_NB_REGS) {
|
515 | 56aebc89 | pbrook | GET_REGL(env->regs[gpr_map[n]]); |
516 | 56aebc89 | pbrook | } else if (n >= CPU_NB_REGS + 8 && n < CPU_NB_REGS + 16) { |
517 | 56aebc89 | pbrook | /* FIXME: byteswap float values. */
|
518 | 56aebc89 | pbrook | #ifdef USE_X86LDOUBLE
|
519 | 56aebc89 | pbrook | memcpy(mem_buf, &env->fpregs[n - (CPU_NB_REGS + 8)], 10); |
520 | 79808573 | bellard | #else
|
521 | 56aebc89 | pbrook | memset(mem_buf, 0, 10); |
522 | 79808573 | bellard | #endif
|
523 | 56aebc89 | pbrook | return 10; |
524 | 56aebc89 | pbrook | } else if (n >= CPU_NB_REGS + 24) { |
525 | 56aebc89 | pbrook | n -= CPU_NB_REGS + 24;
|
526 | 56aebc89 | pbrook | if (n < CPU_NB_REGS) {
|
527 | 56aebc89 | pbrook | stq_p(mem_buf, env->xmm_regs[n].XMM_Q(0));
|
528 | 56aebc89 | pbrook | stq_p(mem_buf + 8, env->xmm_regs[n].XMM_Q(1)); |
529 | 56aebc89 | pbrook | return 16; |
530 | 56aebc89 | pbrook | } else if (n == CPU_NB_REGS) { |
531 | 56aebc89 | pbrook | GET_REG32(env->mxcsr); |
532 | 56aebc89 | pbrook | } |
533 | 56aebc89 | pbrook | } else {
|
534 | 56aebc89 | pbrook | n -= CPU_NB_REGS; |
535 | 56aebc89 | pbrook | switch (n) {
|
536 | 56aebc89 | pbrook | case 0: GET_REGL(env->eip); |
537 | 56aebc89 | pbrook | case 1: GET_REG32(env->eflags); |
538 | 56aebc89 | pbrook | case 2: GET_REG32(env->segs[R_CS].selector); |
539 | 56aebc89 | pbrook | case 3: GET_REG32(env->segs[R_SS].selector); |
540 | 56aebc89 | pbrook | case 4: GET_REG32(env->segs[R_DS].selector); |
541 | 56aebc89 | pbrook | case 5: GET_REG32(env->segs[R_ES].selector); |
542 | 56aebc89 | pbrook | case 6: GET_REG32(env->segs[R_FS].selector); |
543 | 56aebc89 | pbrook | case 7: GET_REG32(env->segs[R_GS].selector); |
544 | 56aebc89 | pbrook | /* 8...15 x87 regs. */
|
545 | 56aebc89 | pbrook | case 16: GET_REG32(env->fpuc); |
546 | 56aebc89 | pbrook | case 17: GET_REG32((env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11); |
547 | 56aebc89 | pbrook | case 18: GET_REG32(0); /* ftag */ |
548 | 56aebc89 | pbrook | case 19: GET_REG32(0); /* fiseg */ |
549 | 56aebc89 | pbrook | case 20: GET_REG32(0); /* fioff */ |
550 | 56aebc89 | pbrook | case 21: GET_REG32(0); /* foseg */ |
551 | 56aebc89 | pbrook | case 22: GET_REG32(0); /* fooff */ |
552 | 56aebc89 | pbrook | case 23: GET_REG32(0); /* fop */ |
553 | 56aebc89 | pbrook | /* 24+ xmm regs. */
|
554 | 56aebc89 | pbrook | } |
555 | 79808573 | bellard | } |
556 | 56aebc89 | pbrook | return 0; |
557 | 6da41eaf | bellard | } |
558 | 6da41eaf | bellard | |
559 | 56aebc89 | pbrook | static int cpu_gdb_write_register(CPUState *env, uint8_t *mem_buf, int i) |
560 | 6da41eaf | bellard | { |
561 | 56aebc89 | pbrook | uint32_t tmp; |
562 | 6da41eaf | bellard | |
563 | 56aebc89 | pbrook | if (i < CPU_NB_REGS) {
|
564 | 56aebc89 | pbrook | env->regs[gpr_map[i]] = ldtul_p(mem_buf); |
565 | 56aebc89 | pbrook | return sizeof(target_ulong); |
566 | 56aebc89 | pbrook | } else if (i >= CPU_NB_REGS + 8 && i < CPU_NB_REGS + 16) { |
567 | 56aebc89 | pbrook | i -= CPU_NB_REGS + 8;
|
568 | 56aebc89 | pbrook | #ifdef USE_X86LDOUBLE
|
569 | 56aebc89 | pbrook | memcpy(&env->fpregs[i], mem_buf, 10);
|
570 | 79808573 | bellard | #endif
|
571 | 56aebc89 | pbrook | return 10; |
572 | 56aebc89 | pbrook | } else if (i >= CPU_NB_REGS + 24) { |
573 | 56aebc89 | pbrook | i -= CPU_NB_REGS + 24;
|
574 | 56aebc89 | pbrook | if (i < CPU_NB_REGS) {
|
575 | 56aebc89 | pbrook | env->xmm_regs[i].XMM_Q(0) = ldq_p(mem_buf);
|
576 | 56aebc89 | pbrook | env->xmm_regs[i].XMM_Q(1) = ldq_p(mem_buf + 8); |
577 | 56aebc89 | pbrook | return 16; |
578 | 56aebc89 | pbrook | } else if (i == CPU_NB_REGS) { |
579 | 56aebc89 | pbrook | env->mxcsr = ldl_p(mem_buf); |
580 | 56aebc89 | pbrook | return 4; |
581 | 79808573 | bellard | } |
582 | 56aebc89 | pbrook | } else {
|
583 | 56aebc89 | pbrook | i -= CPU_NB_REGS; |
584 | 56aebc89 | pbrook | switch (i) {
|
585 | 56aebc89 | pbrook | case 0: env->eip = ldtul_p(mem_buf); return sizeof(target_ulong); |
586 | 56aebc89 | pbrook | case 1: env->eflags = ldl_p(mem_buf); return 4; |
587 | 56aebc89 | pbrook | #if defined(CONFIG_USER_ONLY)
|
588 | 56aebc89 | pbrook | #define LOAD_SEG(index, sreg)\
|
589 | 56aebc89 | pbrook | tmp = ldl_p(mem_buf);\ |
590 | 56aebc89 | pbrook | if (tmp != env->segs[sreg].selector)\
|
591 | 56aebc89 | pbrook | cpu_x86_load_seg(env, sreg, tmp); |
592 | 56aebc89 | pbrook | #else
|
593 | 56aebc89 | pbrook | /* FIXME: Honor segment registers. Needs to avoid raising an exception
|
594 | 56aebc89 | pbrook | when the selector is invalid. */
|
595 | 56aebc89 | pbrook | #define LOAD_SEG(index, sreg) do {} while(0) |
596 | 6da41eaf | bellard | #endif
|
597 | 56aebc89 | pbrook | case 2: LOAD_SEG(10, R_CS); return 4; |
598 | 56aebc89 | pbrook | case 3: LOAD_SEG(11, R_SS); return 4; |
599 | 56aebc89 | pbrook | case 4: LOAD_SEG(12, R_DS); return 4; |
600 | 56aebc89 | pbrook | case 5: LOAD_SEG(13, R_ES); return 4; |
601 | 56aebc89 | pbrook | case 6: LOAD_SEG(14, R_FS); return 4; |
602 | 56aebc89 | pbrook | case 7: LOAD_SEG(15, R_GS); return 4; |
603 | 56aebc89 | pbrook | /* 8...15 x87 regs. */
|
604 | 56aebc89 | pbrook | case 16: env->fpuc = ldl_p(mem_buf); return 4; |
605 | 56aebc89 | pbrook | case 17: |
606 | 56aebc89 | pbrook | tmp = ldl_p(mem_buf); |
607 | 56aebc89 | pbrook | env->fpstt = (tmp >> 11) & 7; |
608 | 56aebc89 | pbrook | env->fpus = tmp & ~0x3800;
|
609 | 56aebc89 | pbrook | return 4; |
610 | 56aebc89 | pbrook | case 18: /* ftag */ return 4; |
611 | 56aebc89 | pbrook | case 19: /* fiseg */ return 4; |
612 | 56aebc89 | pbrook | case 20: /* fioff */ return 4; |
613 | 56aebc89 | pbrook | case 21: /* foseg */ return 4; |
614 | 56aebc89 | pbrook | case 22: /* fooff */ return 4; |
615 | 56aebc89 | pbrook | case 23: /* fop */ return 4; |
616 | 56aebc89 | pbrook | /* 24+ xmm regs. */
|
617 | 79808573 | bellard | } |
618 | 79808573 | bellard | } |
619 | 56aebc89 | pbrook | /* Unrecognised register. */
|
620 | 56aebc89 | pbrook | return 0; |
621 | 6da41eaf | bellard | } |
622 | 6da41eaf | bellard | |
623 | 9e62fd7f | bellard | #elif defined (TARGET_PPC)
|
624 | 9e62fd7f | bellard | |
625 | e571cb47 | aurel32 | /* Old gdb always expects FP registers. Newer (xml-aware) gdb only
|
626 | e571cb47 | aurel32 | expects whatever the target description contains. Due to a
|
627 | e571cb47 | aurel32 | historical mishap the FP registers appear in between core integer
|
628 | e571cb47 | aurel32 | regs and PC, MSR, CR, and so forth. We hack round this by giving the
|
629 | e571cb47 | aurel32 | FP regs zero size when talking to a newer gdb. */
|
630 | 56aebc89 | pbrook | #define NUM_CORE_REGS 71 |
631 | e571cb47 | aurel32 | #if defined (TARGET_PPC64)
|
632 | e571cb47 | aurel32 | #define GDB_CORE_XML "power64-core.xml" |
633 | e571cb47 | aurel32 | #else
|
634 | e571cb47 | aurel32 | #define GDB_CORE_XML "power-core.xml" |
635 | e571cb47 | aurel32 | #endif
|
636 | 9e62fd7f | bellard | |
637 | 56aebc89 | pbrook | static int cpu_gdb_read_register(CPUState *env, uint8_t *mem_buf, int n) |
638 | 9e62fd7f | bellard | { |
639 | 56aebc89 | pbrook | if (n < 32) { |
640 | 56aebc89 | pbrook | /* gprs */
|
641 | 56aebc89 | pbrook | GET_REGL(env->gpr[n]); |
642 | 56aebc89 | pbrook | } else if (n < 64) { |
643 | 56aebc89 | pbrook | /* fprs */
|
644 | e571cb47 | aurel32 | if (gdb_has_xml)
|
645 | e571cb47 | aurel32 | return 0; |
646 | 8d4acf9b | aurel32 | stfq_p(mem_buf, env->fpr[n-32]);
|
647 | 56aebc89 | pbrook | return 8; |
648 | 56aebc89 | pbrook | } else {
|
649 | 56aebc89 | pbrook | switch (n) {
|
650 | 56aebc89 | pbrook | case 64: GET_REGL(env->nip); |
651 | 56aebc89 | pbrook | case 65: GET_REGL(env->msr); |
652 | 56aebc89 | pbrook | case 66: |
653 | 56aebc89 | pbrook | { |
654 | 56aebc89 | pbrook | uint32_t cr = 0;
|
655 | 56aebc89 | pbrook | int i;
|
656 | 56aebc89 | pbrook | for (i = 0; i < 8; i++) |
657 | 56aebc89 | pbrook | cr |= env->crf[i] << (32 - ((i + 1) * 4)); |
658 | 56aebc89 | pbrook | GET_REG32(cr); |
659 | 56aebc89 | pbrook | } |
660 | 56aebc89 | pbrook | case 67: GET_REGL(env->lr); |
661 | 56aebc89 | pbrook | case 68: GET_REGL(env->ctr); |
662 | 3d7b417e | aurel32 | case 69: GET_REGL(env->xer); |
663 | e571cb47 | aurel32 | case 70: |
664 | e571cb47 | aurel32 | { |
665 | e571cb47 | aurel32 | if (gdb_has_xml)
|
666 | e571cb47 | aurel32 | return 0; |
667 | e571cb47 | aurel32 | GET_REG32(0); /* fpscr */ |
668 | e571cb47 | aurel32 | } |
669 | 56aebc89 | pbrook | } |
670 | 56aebc89 | pbrook | } |
671 | 56aebc89 | pbrook | return 0; |
672 | 56aebc89 | pbrook | } |
673 | 9e62fd7f | bellard | |
674 | 56aebc89 | pbrook | static int cpu_gdb_write_register(CPUState *env, uint8_t *mem_buf, int n) |
675 | 56aebc89 | pbrook | { |
676 | 56aebc89 | pbrook | if (n < 32) { |
677 | 56aebc89 | pbrook | /* gprs */
|
678 | 56aebc89 | pbrook | env->gpr[n] = ldtul_p(mem_buf); |
679 | 56aebc89 | pbrook | return sizeof(target_ulong); |
680 | 56aebc89 | pbrook | } else if (n < 64) { |
681 | 56aebc89 | pbrook | /* fprs */
|
682 | e571cb47 | aurel32 | if (gdb_has_xml)
|
683 | e571cb47 | aurel32 | return 0; |
684 | 8d4acf9b | aurel32 | env->fpr[n-32] = ldfq_p(mem_buf);
|
685 | 56aebc89 | pbrook | return 8; |
686 | 56aebc89 | pbrook | } else {
|
687 | 56aebc89 | pbrook | switch (n) {
|
688 | 56aebc89 | pbrook | case 64: |
689 | 56aebc89 | pbrook | env->nip = ldtul_p(mem_buf); |
690 | 56aebc89 | pbrook | return sizeof(target_ulong); |
691 | 56aebc89 | pbrook | case 65: |
692 | 56aebc89 | pbrook | ppc_store_msr(env, ldtul_p(mem_buf)); |
693 | 56aebc89 | pbrook | return sizeof(target_ulong); |
694 | 56aebc89 | pbrook | case 66: |
695 | 56aebc89 | pbrook | { |
696 | 56aebc89 | pbrook | uint32_t cr = ldl_p(mem_buf); |
697 | 56aebc89 | pbrook | int i;
|
698 | 56aebc89 | pbrook | for (i = 0; i < 8; i++) |
699 | 56aebc89 | pbrook | env->crf[i] = (cr >> (32 - ((i + 1) * 4))) & 0xF; |
700 | 56aebc89 | pbrook | return 4; |
701 | 56aebc89 | pbrook | } |
702 | 56aebc89 | pbrook | case 67: |
703 | 56aebc89 | pbrook | env->lr = ldtul_p(mem_buf); |
704 | 56aebc89 | pbrook | return sizeof(target_ulong); |
705 | 56aebc89 | pbrook | case 68: |
706 | 56aebc89 | pbrook | env->ctr = ldtul_p(mem_buf); |
707 | 56aebc89 | pbrook | return sizeof(target_ulong); |
708 | 56aebc89 | pbrook | case 69: |
709 | 3d7b417e | aurel32 | env->xer = ldtul_p(mem_buf); |
710 | 3d7b417e | aurel32 | return sizeof(target_ulong); |
711 | 56aebc89 | pbrook | case 70: |
712 | 56aebc89 | pbrook | /* fpscr */
|
713 | e571cb47 | aurel32 | if (gdb_has_xml)
|
714 | e571cb47 | aurel32 | return 0; |
715 | 56aebc89 | pbrook | return 4; |
716 | 56aebc89 | pbrook | } |
717 | 56aebc89 | pbrook | } |
718 | 56aebc89 | pbrook | return 0; |
719 | e95c8d51 | bellard | } |
720 | 56aebc89 | pbrook | |
721 | e95c8d51 | bellard | #elif defined (TARGET_SPARC)
|
722 | 56aebc89 | pbrook | |
723 | 56aebc89 | pbrook | #if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
|
724 | 56aebc89 | pbrook | #define NUM_CORE_REGS 86 |
725 | 96d19126 | blueswir1 | #else
|
726 | 5a377912 | blueswir1 | #define NUM_CORE_REGS 72 |
727 | 96d19126 | blueswir1 | #endif
|
728 | 56aebc89 | pbrook | |
729 | 96d19126 | blueswir1 | #ifdef TARGET_ABI32
|
730 | 56aebc89 | pbrook | #define GET_REGA(val) GET_REG32(val)
|
731 | 96d19126 | blueswir1 | #else
|
732 | 56aebc89 | pbrook | #define GET_REGA(val) GET_REGL(val)
|
733 | 96d19126 | blueswir1 | #endif
|
734 | e95c8d51 | bellard | |
735 | 56aebc89 | pbrook | static int cpu_gdb_read_register(CPUState *env, uint8_t *mem_buf, int n) |
736 | 56aebc89 | pbrook | { |
737 | 56aebc89 | pbrook | if (n < 8) { |
738 | 56aebc89 | pbrook | /* g0..g7 */
|
739 | 56aebc89 | pbrook | GET_REGA(env->gregs[n]); |
740 | e95c8d51 | bellard | } |
741 | 56aebc89 | pbrook | if (n < 32) { |
742 | 56aebc89 | pbrook | /* register window */
|
743 | 56aebc89 | pbrook | GET_REGA(env->regwptr[n - 8]);
|
744 | e95c8d51 | bellard | } |
745 | 56aebc89 | pbrook | #if defined(TARGET_ABI32) || !defined(TARGET_SPARC64)
|
746 | 56aebc89 | pbrook | if (n < 64) { |
747 | 56aebc89 | pbrook | /* fprs */
|
748 | 56aebc89 | pbrook | GET_REG32(*((uint32_t *)&env->fpr[n - 32]));
|
749 | e95c8d51 | bellard | } |
750 | e95c8d51 | bellard | /* Y, PSR, WIM, TBR, PC, NPC, FPSR, CPSR */
|
751 | 56aebc89 | pbrook | switch (n) {
|
752 | 56aebc89 | pbrook | case 64: GET_REGA(env->y); |
753 | 56aebc89 | pbrook | case 65: GET_REGA(GET_PSR(env)); |
754 | 56aebc89 | pbrook | case 66: GET_REGA(env->wim); |
755 | 56aebc89 | pbrook | case 67: GET_REGA(env->tbr); |
756 | 56aebc89 | pbrook | case 68: GET_REGA(env->pc); |
757 | 56aebc89 | pbrook | case 69: GET_REGA(env->npc); |
758 | 56aebc89 | pbrook | case 70: GET_REGA(env->fsr); |
759 | 56aebc89 | pbrook | case 71: GET_REGA(0); /* csr */ |
760 | 5a377912 | blueswir1 | default: GET_REGA(0); |
761 | 56aebc89 | pbrook | } |
762 | 3475187d | bellard | #else
|
763 | 56aebc89 | pbrook | if (n < 64) { |
764 | 56aebc89 | pbrook | /* f0-f31 */
|
765 | 56aebc89 | pbrook | GET_REG32(*((uint32_t *)&env->fpr[n - 32]));
|
766 | 56aebc89 | pbrook | } |
767 | 56aebc89 | pbrook | if (n < 80) { |
768 | 56aebc89 | pbrook | /* f32-f62 (double width, even numbers only) */
|
769 | 56aebc89 | pbrook | uint64_t val; |
770 | 9d9754a3 | bellard | |
771 | 56aebc89 | pbrook | val = (uint64_t)*((uint32_t *)&env->fpr[(n - 64) * 2 + 32]) << 32; |
772 | 56aebc89 | pbrook | val |= *((uint32_t *)&env->fpr[(n - 64) * 2 + 33]); |
773 | 56aebc89 | pbrook | GET_REG64(val); |
774 | 3475187d | bellard | } |
775 | 56aebc89 | pbrook | switch (n) {
|
776 | 56aebc89 | pbrook | case 80: GET_REGL(env->pc); |
777 | 56aebc89 | pbrook | case 81: GET_REGL(env->npc); |
778 | 56aebc89 | pbrook | case 82: GET_REGL(((uint64_t)GET_CCR(env) << 32) | |
779 | 17d996e1 | blueswir1 | ((env->asi & 0xff) << 24) | |
780 | 17d996e1 | blueswir1 | ((env->pstate & 0xfff) << 8) | |
781 | 17d996e1 | blueswir1 | GET_CWP64(env)); |
782 | 56aebc89 | pbrook | case 83: GET_REGL(env->fsr); |
783 | 56aebc89 | pbrook | case 84: GET_REGL(env->fprs); |
784 | 56aebc89 | pbrook | case 85: GET_REGL(env->y); |
785 | 56aebc89 | pbrook | } |
786 | 3475187d | bellard | #endif
|
787 | 56aebc89 | pbrook | return 0; |
788 | e95c8d51 | bellard | } |
789 | e95c8d51 | bellard | |
790 | 56aebc89 | pbrook | static int cpu_gdb_write_register(CPUState *env, uint8_t *mem_buf, int n) |
791 | e95c8d51 | bellard | { |
792 | 56aebc89 | pbrook | #if defined(TARGET_ABI32)
|
793 | 56aebc89 | pbrook | abi_ulong tmp; |
794 | 56aebc89 | pbrook | |
795 | 56aebc89 | pbrook | tmp = ldl_p(mem_buf); |
796 | 96d19126 | blueswir1 | #else
|
797 | 56aebc89 | pbrook | target_ulong tmp; |
798 | 56aebc89 | pbrook | |
799 | 56aebc89 | pbrook | tmp = ldtul_p(mem_buf); |
800 | 96d19126 | blueswir1 | #endif
|
801 | e95c8d51 | bellard | |
802 | 56aebc89 | pbrook | if (n < 8) { |
803 | 56aebc89 | pbrook | /* g0..g7 */
|
804 | 56aebc89 | pbrook | env->gregs[n] = tmp; |
805 | 56aebc89 | pbrook | } else if (n < 32) { |
806 | 56aebc89 | pbrook | /* register window */
|
807 | 56aebc89 | pbrook | env->regwptr[n - 8] = tmp;
|
808 | e95c8d51 | bellard | } |
809 | 56aebc89 | pbrook | #if defined(TARGET_ABI32) || !defined(TARGET_SPARC64)
|
810 | 56aebc89 | pbrook | else if (n < 64) { |
811 | 56aebc89 | pbrook | /* fprs */
|
812 | 56aebc89 | pbrook | *((uint32_t *)&env->fpr[n - 32]) = tmp;
|
813 | 56aebc89 | pbrook | } else {
|
814 | 56aebc89 | pbrook | /* Y, PSR, WIM, TBR, PC, NPC, FPSR, CPSR */
|
815 | 56aebc89 | pbrook | switch (n) {
|
816 | 56aebc89 | pbrook | case 64: env->y = tmp; break; |
817 | 56aebc89 | pbrook | case 65: PUT_PSR(env, tmp); break; |
818 | 56aebc89 | pbrook | case 66: env->wim = tmp; break; |
819 | 56aebc89 | pbrook | case 67: env->tbr = tmp; break; |
820 | 56aebc89 | pbrook | case 68: env->pc = tmp; break; |
821 | 56aebc89 | pbrook | case 69: env->npc = tmp; break; |
822 | 56aebc89 | pbrook | case 70: env->fsr = tmp; break; |
823 | 56aebc89 | pbrook | default: return 0; |
824 | 56aebc89 | pbrook | } |
825 | e95c8d51 | bellard | } |
826 | 56aebc89 | pbrook | return 4; |
827 | 3475187d | bellard | #else
|
828 | 56aebc89 | pbrook | else if (n < 64) { |
829 | 56aebc89 | pbrook | /* f0-f31 */
|
830 | 56aebc89 | pbrook | env->fpr[n] = ldfl_p(mem_buf); |
831 | 56aebc89 | pbrook | return 4; |
832 | 56aebc89 | pbrook | } else if (n < 80) { |
833 | 56aebc89 | pbrook | /* f32-f62 (double width, even numbers only) */
|
834 | 56aebc89 | pbrook | *((uint32_t *)&env->fpr[(n - 64) * 2 + 32]) = tmp >> 32; |
835 | 56aebc89 | pbrook | *((uint32_t *)&env->fpr[(n - 64) * 2 + 33]) = tmp; |
836 | 56aebc89 | pbrook | } else {
|
837 | 56aebc89 | pbrook | switch (n) {
|
838 | 56aebc89 | pbrook | case 80: env->pc = tmp; break; |
839 | 56aebc89 | pbrook | case 81: env->npc = tmp; break; |
840 | 56aebc89 | pbrook | case 82: |
841 | 56aebc89 | pbrook | PUT_CCR(env, tmp >> 32);
|
842 | 56aebc89 | pbrook | env->asi = (tmp >> 24) & 0xff; |
843 | 56aebc89 | pbrook | env->pstate = (tmp >> 8) & 0xfff; |
844 | 56aebc89 | pbrook | PUT_CWP64(env, tmp & 0xff);
|
845 | 56aebc89 | pbrook | break;
|
846 | 56aebc89 | pbrook | case 83: env->fsr = tmp; break; |
847 | 56aebc89 | pbrook | case 84: env->fprs = tmp; break; |
848 | 56aebc89 | pbrook | case 85: env->y = tmp; break; |
849 | 56aebc89 | pbrook | default: return 0; |
850 | 56aebc89 | pbrook | } |
851 | 17d996e1 | blueswir1 | } |
852 | 56aebc89 | pbrook | return 8; |
853 | 3475187d | bellard | #endif
|
854 | 9e62fd7f | bellard | } |
855 | 1fddef4b | bellard | #elif defined (TARGET_ARM)
|
856 | 6da41eaf | bellard | |
857 | 56aebc89 | pbrook | /* Old gdb always expect FPA registers. Newer (xml-aware) gdb only expect
|
858 | 56aebc89 | pbrook | whatever the target description contains. Due to a historical mishap
|
859 | 56aebc89 | pbrook | the FPA registers appear in between core integer regs and the CPSR.
|
860 | 56aebc89 | pbrook | We hack round this by giving the FPA regs zero size when talking to a
|
861 | 56aebc89 | pbrook | newer gdb. */
|
862 | 56aebc89 | pbrook | #define NUM_CORE_REGS 26 |
863 | 56aebc89 | pbrook | #define GDB_CORE_XML "arm-core.xml" |
864 | e6e5906b | pbrook | |
865 | 56aebc89 | pbrook | static int cpu_gdb_read_register(CPUState *env, uint8_t *mem_buf, int n) |
866 | e6e5906b | pbrook | { |
867 | 56aebc89 | pbrook | if (n < 16) { |
868 | 56aebc89 | pbrook | /* Core integer register. */
|
869 | 56aebc89 | pbrook | GET_REG32(env->regs[n]); |
870 | 56aebc89 | pbrook | } |
871 | 56aebc89 | pbrook | if (n < 24) { |
872 | 56aebc89 | pbrook | /* FPA registers. */
|
873 | 56aebc89 | pbrook | if (gdb_has_xml)
|
874 | 56aebc89 | pbrook | return 0; |
875 | 56aebc89 | pbrook | memset(mem_buf, 0, 12); |
876 | 56aebc89 | pbrook | return 12; |
877 | 56aebc89 | pbrook | } |
878 | 56aebc89 | pbrook | switch (n) {
|
879 | 56aebc89 | pbrook | case 24: |
880 | 56aebc89 | pbrook | /* FPA status register. */
|
881 | 56aebc89 | pbrook | if (gdb_has_xml)
|
882 | 56aebc89 | pbrook | return 0; |
883 | 56aebc89 | pbrook | GET_REG32(0);
|
884 | 56aebc89 | pbrook | case 25: |
885 | 56aebc89 | pbrook | /* CPSR */
|
886 | 56aebc89 | pbrook | GET_REG32(cpsr_read(env)); |
887 | 56aebc89 | pbrook | } |
888 | 56aebc89 | pbrook | /* Unknown register. */
|
889 | 56aebc89 | pbrook | return 0; |
890 | e6e5906b | pbrook | } |
891 | 6f970bd9 | bellard | |
892 | 56aebc89 | pbrook | static int cpu_gdb_write_register(CPUState *env, uint8_t *mem_buf, int n) |
893 | 56aebc89 | pbrook | { |
894 | 56aebc89 | pbrook | uint32_t tmp; |
895 | 6f970bd9 | bellard | |
896 | 56aebc89 | pbrook | tmp = ldl_p(mem_buf); |
897 | 6f970bd9 | bellard | |
898 | 56aebc89 | pbrook | /* Mask out low bit of PC to workaround gdb bugs. This will probably
|
899 | 56aebc89 | pbrook | cause problems if we ever implement the Jazelle DBX extensions. */
|
900 | 56aebc89 | pbrook | if (n == 15) |
901 | 56aebc89 | pbrook | tmp &= ~1;
|
902 | 6f970bd9 | bellard | |
903 | 56aebc89 | pbrook | if (n < 16) { |
904 | 56aebc89 | pbrook | /* Core integer register. */
|
905 | 56aebc89 | pbrook | env->regs[n] = tmp; |
906 | 56aebc89 | pbrook | return 4; |
907 | 56aebc89 | pbrook | } |
908 | 56aebc89 | pbrook | if (n < 24) { /* 16-23 */ |
909 | 56aebc89 | pbrook | /* FPA registers (ignored). */
|
910 | 56aebc89 | pbrook | if (gdb_has_xml)
|
911 | 56aebc89 | pbrook | return 0; |
912 | 56aebc89 | pbrook | return 12; |
913 | 56aebc89 | pbrook | } |
914 | 56aebc89 | pbrook | switch (n) {
|
915 | 56aebc89 | pbrook | case 24: |
916 | 56aebc89 | pbrook | /* FPA status register (ignored). */
|
917 | 56aebc89 | pbrook | if (gdb_has_xml)
|
918 | 56aebc89 | pbrook | return 0; |
919 | 56aebc89 | pbrook | return 4; |
920 | 56aebc89 | pbrook | case 25: |
921 | 56aebc89 | pbrook | /* CPSR */
|
922 | 56aebc89 | pbrook | cpsr_write (env, tmp, 0xffffffff);
|
923 | 56aebc89 | pbrook | return 4; |
924 | 56aebc89 | pbrook | } |
925 | 56aebc89 | pbrook | /* Unknown register. */
|
926 | 56aebc89 | pbrook | return 0; |
927 | 56aebc89 | pbrook | } |
928 | 6f970bd9 | bellard | |
929 | 56aebc89 | pbrook | #elif defined (TARGET_M68K)
|
930 | 6f970bd9 | bellard | |
931 | 56aebc89 | pbrook | #define NUM_CORE_REGS 18 |
932 | 6f970bd9 | bellard | |
933 | 56aebc89 | pbrook | #define GDB_CORE_XML "cf-core.xml" |
934 | 6f970bd9 | bellard | |
935 | 56aebc89 | pbrook | static int cpu_gdb_read_register(CPUState *env, uint8_t *mem_buf, int n) |
936 | 56aebc89 | pbrook | { |
937 | 56aebc89 | pbrook | if (n < 8) { |
938 | 56aebc89 | pbrook | /* D0-D7 */
|
939 | 56aebc89 | pbrook | GET_REG32(env->dregs[n]); |
940 | 56aebc89 | pbrook | } else if (n < 16) { |
941 | 56aebc89 | pbrook | /* A0-A7 */
|
942 | 56aebc89 | pbrook | GET_REG32(env->aregs[n - 8]);
|
943 | 56aebc89 | pbrook | } else {
|
944 | 56aebc89 | pbrook | switch (n) {
|
945 | 56aebc89 | pbrook | case 16: GET_REG32(env->sr); |
946 | 56aebc89 | pbrook | case 17: GET_REG32(env->pc); |
947 | 56aebc89 | pbrook | } |
948 | 56aebc89 | pbrook | } |
949 | 56aebc89 | pbrook | /* FP registers not included here because they vary between
|
950 | 56aebc89 | pbrook | ColdFire and m68k. Use XML bits for these. */
|
951 | 56aebc89 | pbrook | return 0; |
952 | 56aebc89 | pbrook | } |
953 | 8e33c08c | ths | |
954 | 56aebc89 | pbrook | static int cpu_gdb_write_register(CPUState *env, uint8_t *mem_buf, int n) |
955 | 56aebc89 | pbrook | { |
956 | 56aebc89 | pbrook | uint32_t tmp; |
957 | 8e33c08c | ths | |
958 | 56aebc89 | pbrook | tmp = ldl_p(mem_buf); |
959 | 8e33c08c | ths | |
960 | 56aebc89 | pbrook | if (n < 8) { |
961 | 56aebc89 | pbrook | /* D0-D7 */
|
962 | 56aebc89 | pbrook | env->dregs[n] = tmp; |
963 | 56aebc89 | pbrook | } else if (n < 8) { |
964 | 56aebc89 | pbrook | /* A0-A7 */
|
965 | 56aebc89 | pbrook | env->aregs[n - 8] = tmp;
|
966 | 56aebc89 | pbrook | } else {
|
967 | 56aebc89 | pbrook | switch (n) {
|
968 | 56aebc89 | pbrook | case 16: env->sr = tmp; break; |
969 | 56aebc89 | pbrook | case 17: env->pc = tmp; break; |
970 | 56aebc89 | pbrook | default: return 0; |
971 | 56aebc89 | pbrook | } |
972 | 56aebc89 | pbrook | } |
973 | 56aebc89 | pbrook | return 4; |
974 | 56aebc89 | pbrook | } |
975 | 56aebc89 | pbrook | #elif defined (TARGET_MIPS)
|
976 | 7ac256b8 | ths | |
977 | 56aebc89 | pbrook | #define NUM_CORE_REGS 73 |
978 | 7ac256b8 | ths | |
979 | 56aebc89 | pbrook | static int cpu_gdb_read_register(CPUState *env, uint8_t *mem_buf, int n) |
980 | 56aebc89 | pbrook | { |
981 | 56aebc89 | pbrook | if (n < 32) { |
982 | 56aebc89 | pbrook | GET_REGL(env->active_tc.gpr[n]); |
983 | 56aebc89 | pbrook | } |
984 | 56aebc89 | pbrook | if (env->CP0_Config1 & (1 << CP0C1_FP)) { |
985 | 56aebc89 | pbrook | if (n >= 38 && n < 70) { |
986 | 56aebc89 | pbrook | if (env->CP0_Status & (1 << CP0St_FR)) |
987 | 56aebc89 | pbrook | GET_REGL(env->active_fpu.fpr[n - 38].d);
|
988 | 56aebc89 | pbrook | else
|
989 | 56aebc89 | pbrook | GET_REGL(env->active_fpu.fpr[n - 38].w[FP_ENDIAN_IDX]);
|
990 | 56aebc89 | pbrook | } |
991 | 56aebc89 | pbrook | switch (n) {
|
992 | 56aebc89 | pbrook | case 70: GET_REGL((int32_t)env->active_fpu.fcr31); |
993 | 56aebc89 | pbrook | case 71: GET_REGL((int32_t)env->active_fpu.fcr0); |
994 | 56aebc89 | pbrook | } |
995 | 56aebc89 | pbrook | } |
996 | 56aebc89 | pbrook | switch (n) {
|
997 | 56aebc89 | pbrook | case 32: GET_REGL((int32_t)env->CP0_Status); |
998 | 56aebc89 | pbrook | case 33: GET_REGL(env->active_tc.LO[0]); |
999 | 56aebc89 | pbrook | case 34: GET_REGL(env->active_tc.HI[0]); |
1000 | 56aebc89 | pbrook | case 35: GET_REGL(env->CP0_BadVAddr); |
1001 | 56aebc89 | pbrook | case 36: GET_REGL((int32_t)env->CP0_Cause); |
1002 | 56aebc89 | pbrook | case 37: GET_REGL(env->active_tc.PC); |
1003 | 56aebc89 | pbrook | case 72: GET_REGL(0); /* fp */ |
1004 | 56aebc89 | pbrook | case 89: GET_REGL((int32_t)env->CP0_PRid); |
1005 | 56aebc89 | pbrook | } |
1006 | 56aebc89 | pbrook | if (n >= 73 && n <= 88) { |
1007 | 56aebc89 | pbrook | /* 16 embedded regs. */
|
1008 | 56aebc89 | pbrook | GET_REGL(0);
|
1009 | 56aebc89 | pbrook | } |
1010 | 6f970bd9 | bellard | |
1011 | 56aebc89 | pbrook | return 0; |
1012 | 6f970bd9 | bellard | } |
1013 | 6f970bd9 | bellard | |
1014 | 8e33c08c | ths | /* convert MIPS rounding mode in FCR31 to IEEE library */
|
1015 | 8e33c08c | ths | static unsigned int ieee_rm[] = |
1016 | 8e33c08c | ths | { |
1017 | 8e33c08c | ths | float_round_nearest_even, |
1018 | 8e33c08c | ths | float_round_to_zero, |
1019 | 8e33c08c | ths | float_round_up, |
1020 | 8e33c08c | ths | float_round_down |
1021 | 8e33c08c | ths | }; |
1022 | 8e33c08c | ths | #define RESTORE_ROUNDING_MODE \
|
1023 | f01be154 | ths | set_float_rounding_mode(ieee_rm[env->active_fpu.fcr31 & 3], &env->active_fpu.fp_status)
|
1024 | 8e33c08c | ths | |
1025 | 56aebc89 | pbrook | static int cpu_gdb_write_register(CPUState *env, uint8_t *mem_buf, int n) |
1026 | 6f970bd9 | bellard | { |
1027 | 56aebc89 | pbrook | target_ulong tmp; |
1028 | 6f970bd9 | bellard | |
1029 | 56aebc89 | pbrook | tmp = ldtul_p(mem_buf); |
1030 | 6f970bd9 | bellard | |
1031 | 56aebc89 | pbrook | if (n < 32) { |
1032 | 56aebc89 | pbrook | env->active_tc.gpr[n] = tmp; |
1033 | 56aebc89 | pbrook | return sizeof(target_ulong); |
1034 | 56aebc89 | pbrook | } |
1035 | 56aebc89 | pbrook | if (env->CP0_Config1 & (1 << CP0C1_FP) |
1036 | 56aebc89 | pbrook | && n >= 38 && n < 73) { |
1037 | 56aebc89 | pbrook | if (n < 70) { |
1038 | 7ac256b8 | ths | if (env->CP0_Status & (1 << CP0St_FR)) |
1039 | 56aebc89 | pbrook | env->active_fpu.fpr[n - 38].d = tmp;
|
1040 | 7ac256b8 | ths | else
|
1041 | 56aebc89 | pbrook | env->active_fpu.fpr[n - 38].w[FP_ENDIAN_IDX] = tmp;
|
1042 | 56aebc89 | pbrook | } |
1043 | 56aebc89 | pbrook | switch (n) {
|
1044 | 56aebc89 | pbrook | case 70: |
1045 | 56aebc89 | pbrook | env->active_fpu.fcr31 = tmp & 0xFF83FFFF;
|
1046 | 56aebc89 | pbrook | /* set rounding mode */
|
1047 | 56aebc89 | pbrook | RESTORE_ROUNDING_MODE; |
1048 | 8e33c08c | ths | #ifndef CONFIG_SOFTFLOAT
|
1049 | 56aebc89 | pbrook | /* no floating point exception for native float */
|
1050 | 56aebc89 | pbrook | SET_FP_ENABLE(env->active_fpu.fcr31, 0);
|
1051 | 8e33c08c | ths | #endif
|
1052 | 56aebc89 | pbrook | break;
|
1053 | 56aebc89 | pbrook | case 71: env->active_fpu.fcr0 = tmp; break; |
1054 | 56aebc89 | pbrook | } |
1055 | 56aebc89 | pbrook | return sizeof(target_ulong); |
1056 | 56aebc89 | pbrook | } |
1057 | 56aebc89 | pbrook | switch (n) {
|
1058 | 56aebc89 | pbrook | case 32: env->CP0_Status = tmp; break; |
1059 | 56aebc89 | pbrook | case 33: env->active_tc.LO[0] = tmp; break; |
1060 | 56aebc89 | pbrook | case 34: env->active_tc.HI[0] = tmp; break; |
1061 | 56aebc89 | pbrook | case 35: env->CP0_BadVAddr = tmp; break; |
1062 | 56aebc89 | pbrook | case 36: env->CP0_Cause = tmp; break; |
1063 | 56aebc89 | pbrook | case 37: env->active_tc.PC = tmp; break; |
1064 | 56aebc89 | pbrook | case 72: /* fp, ignored */ break; |
1065 | 56aebc89 | pbrook | default:
|
1066 | 56aebc89 | pbrook | if (n > 89) |
1067 | 56aebc89 | pbrook | return 0; |
1068 | 56aebc89 | pbrook | /* Other registers are readonly. Ignore writes. */
|
1069 | 56aebc89 | pbrook | break;
|
1070 | 56aebc89 | pbrook | } |
1071 | 56aebc89 | pbrook | |
1072 | 56aebc89 | pbrook | return sizeof(target_ulong); |
1073 | 6f970bd9 | bellard | } |
1074 | fdf9b3e8 | bellard | #elif defined (TARGET_SH4)
|
1075 | 6ef99fc5 | ths | |
1076 | 6ef99fc5 | ths | /* Hint: Use "set architecture sh4" in GDB to see fpu registers */
|
1077 | 56aebc89 | pbrook | /* FIXME: We should use XML for this. */
|
1078 | 56aebc89 | pbrook | |
1079 | 56aebc89 | pbrook | #define NUM_CORE_REGS 59 |
1080 | 6ef99fc5 | ths | |
1081 | 56aebc89 | pbrook | static int cpu_gdb_read_register(CPUState *env, uint8_t *mem_buf, int n) |
1082 | fdf9b3e8 | bellard | { |
1083 | 56aebc89 | pbrook | if (n < 8) { |
1084 | 56aebc89 | pbrook | if ((env->sr & (SR_MD | SR_RB)) == (SR_MD | SR_RB)) {
|
1085 | 56aebc89 | pbrook | GET_REGL(env->gregs[n + 16]);
|
1086 | 56aebc89 | pbrook | } else {
|
1087 | 56aebc89 | pbrook | GET_REGL(env->gregs[n]); |
1088 | 56aebc89 | pbrook | } |
1089 | 56aebc89 | pbrook | } else if (n < 16) { |
1090 | 56aebc89 | pbrook | GET_REGL(env->gregs[n - 8]);
|
1091 | 56aebc89 | pbrook | } else if (n >= 25 && n < 41) { |
1092 | 56aebc89 | pbrook | GET_REGL(env->fregs[(n - 25) + ((env->fpscr & FPSCR_FR) ? 16 : 0)]); |
1093 | 56aebc89 | pbrook | } else if (n >= 43 && n < 51) { |
1094 | 56aebc89 | pbrook | GET_REGL(env->gregs[n - 43]);
|
1095 | 56aebc89 | pbrook | } else if (n >= 51 && n < 59) { |
1096 | 56aebc89 | pbrook | GET_REGL(env->gregs[n - (51 - 16)]); |
1097 | 56aebc89 | pbrook | } |
1098 | 56aebc89 | pbrook | switch (n) {
|
1099 | 56aebc89 | pbrook | case 16: GET_REGL(env->pc); |
1100 | 56aebc89 | pbrook | case 17: GET_REGL(env->pr); |
1101 | 56aebc89 | pbrook | case 18: GET_REGL(env->gbr); |
1102 | 56aebc89 | pbrook | case 19: GET_REGL(env->vbr); |
1103 | 56aebc89 | pbrook | case 20: GET_REGL(env->mach); |
1104 | 56aebc89 | pbrook | case 21: GET_REGL(env->macl); |
1105 | 56aebc89 | pbrook | case 22: GET_REGL(env->sr); |
1106 | 56aebc89 | pbrook | case 23: GET_REGL(env->fpul); |
1107 | 56aebc89 | pbrook | case 24: GET_REGL(env->fpscr); |
1108 | 56aebc89 | pbrook | case 41: GET_REGL(env->ssr); |
1109 | 56aebc89 | pbrook | case 42: GET_REGL(env->spc); |
1110 | 56aebc89 | pbrook | } |
1111 | 56aebc89 | pbrook | |
1112 | 56aebc89 | pbrook | return 0; |
1113 | fdf9b3e8 | bellard | } |
1114 | fdf9b3e8 | bellard | |
1115 | 56aebc89 | pbrook | static int cpu_gdb_write_register(CPUState *env, uint8_t *mem_buf, int n) |
1116 | fdf9b3e8 | bellard | { |
1117 | 56aebc89 | pbrook | uint32_t tmp; |
1118 | 56aebc89 | pbrook | |
1119 | 56aebc89 | pbrook | tmp = ldl_p(mem_buf); |
1120 | 56aebc89 | pbrook | |
1121 | 56aebc89 | pbrook | if (n < 8) { |
1122 | 56aebc89 | pbrook | if ((env->sr & (SR_MD | SR_RB)) == (SR_MD | SR_RB)) {
|
1123 | 56aebc89 | pbrook | env->gregs[n + 16] = tmp;
|
1124 | 56aebc89 | pbrook | } else {
|
1125 | 56aebc89 | pbrook | env->gregs[n] = tmp; |
1126 | 56aebc89 | pbrook | } |
1127 | 56aebc89 | pbrook | return 4; |
1128 | 56aebc89 | pbrook | } else if (n < 16) { |
1129 | 56aebc89 | pbrook | env->gregs[n - 8] = tmp;
|
1130 | 56aebc89 | pbrook | return 4; |
1131 | 56aebc89 | pbrook | } else if (n >= 25 && n < 41) { |
1132 | 56aebc89 | pbrook | env->fregs[(n - 25) + ((env->fpscr & FPSCR_FR) ? 16 : 0)] = tmp; |
1133 | 56aebc89 | pbrook | } else if (n >= 43 && n < 51) { |
1134 | 56aebc89 | pbrook | env->gregs[n - 43] = tmp;
|
1135 | 56aebc89 | pbrook | return 4; |
1136 | 56aebc89 | pbrook | } else if (n >= 51 && n < 59) { |
1137 | 56aebc89 | pbrook | env->gregs[n - (51 - 16)] = tmp; |
1138 | 56aebc89 | pbrook | return 4; |
1139 | 56aebc89 | pbrook | } |
1140 | 56aebc89 | pbrook | switch (n) {
|
1141 | 56aebc89 | pbrook | case 16: env->pc = tmp; |
1142 | 56aebc89 | pbrook | case 17: env->pr = tmp; |
1143 | 56aebc89 | pbrook | case 18: env->gbr = tmp; |
1144 | 56aebc89 | pbrook | case 19: env->vbr = tmp; |
1145 | 56aebc89 | pbrook | case 20: env->mach = tmp; |
1146 | 56aebc89 | pbrook | case 21: env->macl = tmp; |
1147 | 56aebc89 | pbrook | case 22: env->sr = tmp; |
1148 | 56aebc89 | pbrook | case 23: env->fpul = tmp; |
1149 | 56aebc89 | pbrook | case 24: env->fpscr = tmp; |
1150 | 56aebc89 | pbrook | case 41: env->ssr = tmp; |
1151 | 56aebc89 | pbrook | case 42: env->spc = tmp; |
1152 | 56aebc89 | pbrook | default: return 0; |
1153 | 56aebc89 | pbrook | } |
1154 | 56aebc89 | pbrook | |
1155 | 56aebc89 | pbrook | return 4; |
1156 | fdf9b3e8 | bellard | } |
1157 | f1ccf904 | ths | #elif defined (TARGET_CRIS)
|
1158 | f1ccf904 | ths | |
1159 | 56aebc89 | pbrook | #define NUM_CORE_REGS 49 |
1160 | 56aebc89 | pbrook | |
1161 | 56aebc89 | pbrook | static int cpu_gdb_read_register(CPUState *env, uint8_t *mem_buf, int n) |
1162 | f1ccf904 | ths | { |
1163 | 56aebc89 | pbrook | uint8_t srs; |
1164 | 56aebc89 | pbrook | |
1165 | 56aebc89 | pbrook | srs = env->pregs[PR_SRS]; |
1166 | 56aebc89 | pbrook | if (n < 16) { |
1167 | 56aebc89 | pbrook | GET_REG32(env->regs[n]); |
1168 | 56aebc89 | pbrook | } |
1169 | 56aebc89 | pbrook | |
1170 | 56aebc89 | pbrook | if (n >= 21 && n < 32) { |
1171 | 56aebc89 | pbrook | GET_REG32(env->pregs[n - 16]);
|
1172 | 56aebc89 | pbrook | } |
1173 | 56aebc89 | pbrook | if (n >= 33 && n < 49) { |
1174 | 56aebc89 | pbrook | GET_REG32(env->sregs[srs][n - 33]);
|
1175 | 56aebc89 | pbrook | } |
1176 | 56aebc89 | pbrook | switch (n) {
|
1177 | 56aebc89 | pbrook | case 16: GET_REG8(env->pregs[0]); |
1178 | 56aebc89 | pbrook | case 17: GET_REG8(env->pregs[1]); |
1179 | 56aebc89 | pbrook | case 18: GET_REG32(env->pregs[2]); |
1180 | 56aebc89 | pbrook | case 19: GET_REG8(srs); |
1181 | 56aebc89 | pbrook | case 20: GET_REG16(env->pregs[4]); |
1182 | 56aebc89 | pbrook | case 32: GET_REG32(env->pc); |
1183 | 56aebc89 | pbrook | } |
1184 | 56aebc89 | pbrook | |
1185 | 56aebc89 | pbrook | return 0; |
1186 | f1ccf904 | ths | } |
1187 | 56aebc89 | pbrook | |
1188 | 56aebc89 | pbrook | static int cpu_gdb_write_register(CPUState *env, uint8_t *mem_buf, int n) |
1189 | f1ccf904 | ths | { |
1190 | 56aebc89 | pbrook | uint32_t tmp; |
1191 | 56aebc89 | pbrook | |
1192 | 56aebc89 | pbrook | if (n > 49) |
1193 | 56aebc89 | pbrook | return 0; |
1194 | 56aebc89 | pbrook | |
1195 | 56aebc89 | pbrook | tmp = ldl_p(mem_buf); |
1196 | 56aebc89 | pbrook | |
1197 | 56aebc89 | pbrook | if (n < 16) { |
1198 | 56aebc89 | pbrook | env->regs[n] = tmp; |
1199 | 56aebc89 | pbrook | } |
1200 | 56aebc89 | pbrook | |
1201 | d7b6967a | edgar_igl | if (n >= 21 && n < 32) { |
1202 | d7b6967a | edgar_igl | env->pregs[n - 16] = tmp;
|
1203 | d7b6967a | edgar_igl | } |
1204 | d7b6967a | edgar_igl | |
1205 | d7b6967a | edgar_igl | /* FIXME: Should support function regs be writable? */
|
1206 | 56aebc89 | pbrook | switch (n) {
|
1207 | 56aebc89 | pbrook | case 16: return 1; |
1208 | 56aebc89 | pbrook | case 17: return 1; |
1209 | d7b6967a | edgar_igl | case 18: env->pregs[PR_PID] = tmp; break; |
1210 | 56aebc89 | pbrook | case 19: return 1; |
1211 | 56aebc89 | pbrook | case 20: return 2; |
1212 | 56aebc89 | pbrook | case 32: env->pc = tmp; break; |
1213 | 56aebc89 | pbrook | } |
1214 | 56aebc89 | pbrook | |
1215 | 56aebc89 | pbrook | return 4; |
1216 | f1ccf904 | ths | } |
1217 | 19bf517b | aurel32 | #elif defined (TARGET_ALPHA)
|
1218 | 19bf517b | aurel32 | |
1219 | 19bf517b | aurel32 | #define NUM_CORE_REGS 65 |
1220 | 19bf517b | aurel32 | |
1221 | 19bf517b | aurel32 | static int cpu_gdb_read_register(CPUState *env, uint8_t *mem_buf, int n) |
1222 | 19bf517b | aurel32 | { |
1223 | 19bf517b | aurel32 | if (n < 31) { |
1224 | 19bf517b | aurel32 | GET_REGL(env->ir[n]); |
1225 | 19bf517b | aurel32 | } |
1226 | 19bf517b | aurel32 | else if (n == 31) { |
1227 | 19bf517b | aurel32 | GET_REGL(0);
|
1228 | 19bf517b | aurel32 | } |
1229 | 19bf517b | aurel32 | else if (n<63) { |
1230 | 19bf517b | aurel32 | uint64_t val; |
1231 | 19bf517b | aurel32 | |
1232 | 19bf517b | aurel32 | val=*((uint64_t *)&env->fir[n-32]);
|
1233 | 19bf517b | aurel32 | GET_REGL(val); |
1234 | 19bf517b | aurel32 | } |
1235 | 19bf517b | aurel32 | else if (n==63) { |
1236 | 19bf517b | aurel32 | GET_REGL(env->fpcr); |
1237 | 19bf517b | aurel32 | } |
1238 | 19bf517b | aurel32 | else if (n==64) { |
1239 | 19bf517b | aurel32 | GET_REGL(env->pc); |
1240 | 19bf517b | aurel32 | } |
1241 | 19bf517b | aurel32 | else {
|
1242 | 19bf517b | aurel32 | GET_REGL(0);
|
1243 | 19bf517b | aurel32 | } |
1244 | 19bf517b | aurel32 | |
1245 | 19bf517b | aurel32 | return 0; |
1246 | 19bf517b | aurel32 | } |
1247 | 19bf517b | aurel32 | |
1248 | 19bf517b | aurel32 | static int cpu_gdb_write_register(CPUState *env, uint8_t *mem_buf, int n) |
1249 | 19bf517b | aurel32 | { |
1250 | 19bf517b | aurel32 | target_ulong tmp; |
1251 | 19bf517b | aurel32 | tmp = ldtul_p(mem_buf); |
1252 | 19bf517b | aurel32 | |
1253 | 19bf517b | aurel32 | if (n < 31) { |
1254 | 19bf517b | aurel32 | env->ir[n] = tmp; |
1255 | 19bf517b | aurel32 | } |
1256 | 19bf517b | aurel32 | |
1257 | 19bf517b | aurel32 | if (n > 31 && n < 63) { |
1258 | 19bf517b | aurel32 | env->fir[n - 32] = ldfl_p(mem_buf);
|
1259 | 19bf517b | aurel32 | } |
1260 | 19bf517b | aurel32 | |
1261 | 19bf517b | aurel32 | if (n == 64 ) { |
1262 | 19bf517b | aurel32 | env->pc=tmp; |
1263 | 19bf517b | aurel32 | } |
1264 | 19bf517b | aurel32 | |
1265 | 19bf517b | aurel32 | return 8; |
1266 | 19bf517b | aurel32 | } |
1267 | 56aebc89 | pbrook | #else
|
1268 | 56aebc89 | pbrook | |
1269 | 56aebc89 | pbrook | #define NUM_CORE_REGS 0 |
1270 | 56aebc89 | pbrook | |
1271 | 56aebc89 | pbrook | static int cpu_gdb_read_register(CPUState *env, uint8_t *mem_buf, int n) |
1272 | f1ccf904 | ths | { |
1273 | 56aebc89 | pbrook | return 0; |
1274 | f1ccf904 | ths | } |
1275 | f1ccf904 | ths | |
1276 | 56aebc89 | pbrook | static int cpu_gdb_write_register(CPUState *env, uint8_t *mem_buf, int n) |
1277 | f1ccf904 | ths | { |
1278 | 56aebc89 | pbrook | return 0; |
1279 | 56aebc89 | pbrook | } |
1280 | f1ccf904 | ths | |
1281 | 56aebc89 | pbrook | #endif
|
1282 | f1ccf904 | ths | |
1283 | 56aebc89 | pbrook | static int num_g_regs = NUM_CORE_REGS; |
1284 | f1ccf904 | ths | |
1285 | 56aebc89 | pbrook | #ifdef GDB_CORE_XML
|
1286 | 56aebc89 | pbrook | /* Encode data using the encoding for 'x' packets. */
|
1287 | 56aebc89 | pbrook | static int memtox(char *buf, const char *mem, int len) |
1288 | 56aebc89 | pbrook | { |
1289 | 56aebc89 | pbrook | char *p = buf;
|
1290 | 56aebc89 | pbrook | char c;
|
1291 | 56aebc89 | pbrook | |
1292 | 56aebc89 | pbrook | while (len--) {
|
1293 | 56aebc89 | pbrook | c = *(mem++); |
1294 | 56aebc89 | pbrook | switch (c) {
|
1295 | 56aebc89 | pbrook | case '#': case '$': case '*': case '}': |
1296 | 56aebc89 | pbrook | *(p++) = '}';
|
1297 | 56aebc89 | pbrook | *(p++) = c ^ 0x20;
|
1298 | 56aebc89 | pbrook | break;
|
1299 | 56aebc89 | pbrook | default:
|
1300 | 56aebc89 | pbrook | *(p++) = c; |
1301 | 56aebc89 | pbrook | break;
|
1302 | 56aebc89 | pbrook | } |
1303 | 56aebc89 | pbrook | } |
1304 | 56aebc89 | pbrook | return p - buf;
|
1305 | 56aebc89 | pbrook | } |
1306 | f1ccf904 | ths | |
1307 | 3faf778e | aurel32 | static const char *get_feature_xml(const char *p, const char **newp) |
1308 | 56aebc89 | pbrook | { |
1309 | 56aebc89 | pbrook | extern const char *const xml_builtin[][2]; |
1310 | 56aebc89 | pbrook | size_t len; |
1311 | 56aebc89 | pbrook | int i;
|
1312 | 56aebc89 | pbrook | const char *name; |
1313 | 56aebc89 | pbrook | static char target_xml[1024]; |
1314 | 56aebc89 | pbrook | |
1315 | 56aebc89 | pbrook | len = 0;
|
1316 | 56aebc89 | pbrook | while (p[len] && p[len] != ':') |
1317 | 56aebc89 | pbrook | len++; |
1318 | 56aebc89 | pbrook | *newp = p + len; |
1319 | 56aebc89 | pbrook | |
1320 | 56aebc89 | pbrook | name = NULL;
|
1321 | 56aebc89 | pbrook | if (strncmp(p, "target.xml", len) == 0) { |
1322 | 56aebc89 | pbrook | /* Generate the XML description for this CPU. */
|
1323 | 56aebc89 | pbrook | if (!target_xml[0]) { |
1324 | 56aebc89 | pbrook | GDBRegisterState *r; |
1325 | 56aebc89 | pbrook | |
1326 | 5b3715bf | blueswir1 | snprintf(target_xml, sizeof(target_xml),
|
1327 | 5b3715bf | blueswir1 | "<?xml version=\"1.0\"?>"
|
1328 | 5b3715bf | blueswir1 | "<!DOCTYPE target SYSTEM \"gdb-target.dtd\">"
|
1329 | 5b3715bf | blueswir1 | "<target>"
|
1330 | 5b3715bf | blueswir1 | "<xi:include href=\"%s\"/>",
|
1331 | 5b3715bf | blueswir1 | GDB_CORE_XML); |
1332 | 56aebc89 | pbrook | |
1333 | 880a7578 | aliguori | for (r = first_cpu->gdb_regs; r; r = r->next) {
|
1334 | 56aebc89 | pbrook | strcat(target_xml, "<xi:include href=\"");
|
1335 | 56aebc89 | pbrook | strcat(target_xml, r->xml); |
1336 | 56aebc89 | pbrook | strcat(target_xml, "\"/>");
|
1337 | 56aebc89 | pbrook | } |
1338 | 56aebc89 | pbrook | strcat(target_xml, "</target>");
|
1339 | 56aebc89 | pbrook | } |
1340 | 56aebc89 | pbrook | return target_xml;
|
1341 | 56aebc89 | pbrook | } |
1342 | 56aebc89 | pbrook | for (i = 0; ; i++) { |
1343 | 56aebc89 | pbrook | name = xml_builtin[i][0];
|
1344 | 56aebc89 | pbrook | if (!name || (strncmp(name, p, len) == 0 && strlen(name) == len)) |
1345 | 56aebc89 | pbrook | break;
|
1346 | 56aebc89 | pbrook | } |
1347 | 56aebc89 | pbrook | return name ? xml_builtin[i][1] : NULL; |
1348 | 56aebc89 | pbrook | } |
1349 | 56aebc89 | pbrook | #endif
|
1350 | f1ccf904 | ths | |
1351 | 56aebc89 | pbrook | static int gdb_read_register(CPUState *env, uint8_t *mem_buf, int reg) |
1352 | 56aebc89 | pbrook | { |
1353 | 56aebc89 | pbrook | GDBRegisterState *r; |
1354 | f1ccf904 | ths | |
1355 | 56aebc89 | pbrook | if (reg < NUM_CORE_REGS)
|
1356 | 56aebc89 | pbrook | return cpu_gdb_read_register(env, mem_buf, reg);
|
1357 | f1ccf904 | ths | |
1358 | 56aebc89 | pbrook | for (r = env->gdb_regs; r; r = r->next) {
|
1359 | 56aebc89 | pbrook | if (r->base_reg <= reg && reg < r->base_reg + r->num_regs) {
|
1360 | 56aebc89 | pbrook | return r->get_reg(env, mem_buf, reg - r->base_reg);
|
1361 | 56aebc89 | pbrook | } |
1362 | 56aebc89 | pbrook | } |
1363 | 56aebc89 | pbrook | return 0; |
1364 | f1ccf904 | ths | } |
1365 | f1ccf904 | ths | |
1366 | 56aebc89 | pbrook | static int gdb_write_register(CPUState *env, uint8_t *mem_buf, int reg) |
1367 | f1ccf904 | ths | { |
1368 | 56aebc89 | pbrook | GDBRegisterState *r; |
1369 | f1ccf904 | ths | |
1370 | 56aebc89 | pbrook | if (reg < NUM_CORE_REGS)
|
1371 | 56aebc89 | pbrook | return cpu_gdb_write_register(env, mem_buf, reg);
|
1372 | 56aebc89 | pbrook | |
1373 | 56aebc89 | pbrook | for (r = env->gdb_regs; r; r = r->next) {
|
1374 | 56aebc89 | pbrook | if (r->base_reg <= reg && reg < r->base_reg + r->num_regs) {
|
1375 | 56aebc89 | pbrook | return r->set_reg(env, mem_buf, reg - r->base_reg);
|
1376 | 56aebc89 | pbrook | } |
1377 | 56aebc89 | pbrook | } |
1378 | 6da41eaf | bellard | return 0; |
1379 | 6da41eaf | bellard | } |
1380 | 6da41eaf | bellard | |
1381 | 56aebc89 | pbrook | /* Register a supplemental set of CPU registers. If g_pos is nonzero it
|
1382 | 56aebc89 | pbrook | specifies the first register number and these registers are included in
|
1383 | 56aebc89 | pbrook | a standard "g" packet. Direction is relative to gdb, i.e. get_reg is
|
1384 | 56aebc89 | pbrook | gdb reading a CPU register, and set_reg is gdb modifying a CPU register.
|
1385 | 56aebc89 | pbrook | */
|
1386 | 56aebc89 | pbrook | |
1387 | 56aebc89 | pbrook | void gdb_register_coprocessor(CPUState * env,
|
1388 | 56aebc89 | pbrook | gdb_reg_cb get_reg, gdb_reg_cb set_reg, |
1389 | 56aebc89 | pbrook | int num_regs, const char *xml, int g_pos) |
1390 | 6da41eaf | bellard | { |
1391 | 56aebc89 | pbrook | GDBRegisterState *s; |
1392 | 56aebc89 | pbrook | GDBRegisterState **p; |
1393 | 56aebc89 | pbrook | static int last_reg = NUM_CORE_REGS; |
1394 | 56aebc89 | pbrook | |
1395 | 56aebc89 | pbrook | s = (GDBRegisterState *)qemu_mallocz(sizeof(GDBRegisterState));
|
1396 | 56aebc89 | pbrook | s->base_reg = last_reg; |
1397 | 56aebc89 | pbrook | s->num_regs = num_regs; |
1398 | 56aebc89 | pbrook | s->get_reg = get_reg; |
1399 | 56aebc89 | pbrook | s->set_reg = set_reg; |
1400 | 56aebc89 | pbrook | s->xml = xml; |
1401 | 56aebc89 | pbrook | p = &env->gdb_regs; |
1402 | 56aebc89 | pbrook | while (*p) {
|
1403 | 56aebc89 | pbrook | /* Check for duplicates. */
|
1404 | 56aebc89 | pbrook | if (strcmp((*p)->xml, xml) == 0) |
1405 | 56aebc89 | pbrook | return;
|
1406 | 56aebc89 | pbrook | p = &(*p)->next; |
1407 | 56aebc89 | pbrook | } |
1408 | 56aebc89 | pbrook | /* Add to end of list. */
|
1409 | 56aebc89 | pbrook | last_reg += num_regs; |
1410 | 56aebc89 | pbrook | *p = s; |
1411 | 56aebc89 | pbrook | if (g_pos) {
|
1412 | 56aebc89 | pbrook | if (g_pos != s->base_reg) {
|
1413 | 56aebc89 | pbrook | fprintf(stderr, "Error: Bad gdb register numbering for '%s'\n"
|
1414 | 56aebc89 | pbrook | "Expected %d got %d\n", xml, g_pos, s->base_reg);
|
1415 | 56aebc89 | pbrook | } else {
|
1416 | 56aebc89 | pbrook | num_g_regs = last_reg; |
1417 | 56aebc89 | pbrook | } |
1418 | 56aebc89 | pbrook | } |
1419 | 6da41eaf | bellard | } |
1420 | 6da41eaf | bellard | |
1421 | a1d1bb31 | aliguori | /* GDB breakpoint/watchpoint types */
|
1422 | a1d1bb31 | aliguori | #define GDB_BREAKPOINT_SW 0 |
1423 | a1d1bb31 | aliguori | #define GDB_BREAKPOINT_HW 1 |
1424 | a1d1bb31 | aliguori | #define GDB_WATCHPOINT_WRITE 2 |
1425 | a1d1bb31 | aliguori | #define GDB_WATCHPOINT_READ 3 |
1426 | a1d1bb31 | aliguori | #define GDB_WATCHPOINT_ACCESS 4 |
1427 | a1d1bb31 | aliguori | |
1428 | a1d1bb31 | aliguori | #ifndef CONFIG_USER_ONLY
|
1429 | a1d1bb31 | aliguori | static const int xlat_gdb_type[] = { |
1430 | a1d1bb31 | aliguori | [GDB_WATCHPOINT_WRITE] = BP_GDB | BP_MEM_WRITE, |
1431 | a1d1bb31 | aliguori | [GDB_WATCHPOINT_READ] = BP_GDB | BP_MEM_READ, |
1432 | a1d1bb31 | aliguori | [GDB_WATCHPOINT_ACCESS] = BP_GDB | BP_MEM_ACCESS, |
1433 | a1d1bb31 | aliguori | }; |
1434 | a1d1bb31 | aliguori | #endif
|
1435 | a1d1bb31 | aliguori | |
1436 | 880a7578 | aliguori | static int gdb_breakpoint_insert(target_ulong addr, target_ulong len, int type) |
1437 | a1d1bb31 | aliguori | { |
1438 | 880a7578 | aliguori | CPUState *env; |
1439 | 880a7578 | aliguori | int err = 0; |
1440 | 880a7578 | aliguori | |
1441 | a1d1bb31 | aliguori | switch (type) {
|
1442 | a1d1bb31 | aliguori | case GDB_BREAKPOINT_SW:
|
1443 | a1d1bb31 | aliguori | case GDB_BREAKPOINT_HW:
|
1444 | 880a7578 | aliguori | for (env = first_cpu; env != NULL; env = env->next_cpu) { |
1445 | 880a7578 | aliguori | err = cpu_breakpoint_insert(env, addr, BP_GDB, NULL);
|
1446 | 880a7578 | aliguori | if (err)
|
1447 | 880a7578 | aliguori | break;
|
1448 | 880a7578 | aliguori | } |
1449 | 880a7578 | aliguori | return err;
|
1450 | a1d1bb31 | aliguori | #ifndef CONFIG_USER_ONLY
|
1451 | a1d1bb31 | aliguori | case GDB_WATCHPOINT_WRITE:
|
1452 | a1d1bb31 | aliguori | case GDB_WATCHPOINT_READ:
|
1453 | a1d1bb31 | aliguori | case GDB_WATCHPOINT_ACCESS:
|
1454 | 880a7578 | aliguori | for (env = first_cpu; env != NULL; env = env->next_cpu) { |
1455 | 880a7578 | aliguori | err = cpu_watchpoint_insert(env, addr, len, xlat_gdb_type[type], |
1456 | 880a7578 | aliguori | NULL);
|
1457 | 880a7578 | aliguori | if (err)
|
1458 | 880a7578 | aliguori | break;
|
1459 | 880a7578 | aliguori | } |
1460 | 880a7578 | aliguori | return err;
|
1461 | a1d1bb31 | aliguori | #endif
|
1462 | a1d1bb31 | aliguori | default:
|
1463 | a1d1bb31 | aliguori | return -ENOSYS;
|
1464 | a1d1bb31 | aliguori | } |
1465 | a1d1bb31 | aliguori | } |
1466 | a1d1bb31 | aliguori | |
1467 | 880a7578 | aliguori | static int gdb_breakpoint_remove(target_ulong addr, target_ulong len, int type) |
1468 | a1d1bb31 | aliguori | { |
1469 | 880a7578 | aliguori | CPUState *env; |
1470 | 880a7578 | aliguori | int err = 0; |
1471 | 880a7578 | aliguori | |
1472 | a1d1bb31 | aliguori | switch (type) {
|
1473 | a1d1bb31 | aliguori | case GDB_BREAKPOINT_SW:
|
1474 | a1d1bb31 | aliguori | case GDB_BREAKPOINT_HW:
|
1475 | 880a7578 | aliguori | for (env = first_cpu; env != NULL; env = env->next_cpu) { |
1476 | 880a7578 | aliguori | err = cpu_breakpoint_remove(env, addr, BP_GDB); |
1477 | 880a7578 | aliguori | if (err)
|
1478 | 880a7578 | aliguori | break;
|
1479 | 880a7578 | aliguori | } |
1480 | 880a7578 | aliguori | return err;
|
1481 | a1d1bb31 | aliguori | #ifndef CONFIG_USER_ONLY
|
1482 | a1d1bb31 | aliguori | case GDB_WATCHPOINT_WRITE:
|
1483 | a1d1bb31 | aliguori | case GDB_WATCHPOINT_READ:
|
1484 | a1d1bb31 | aliguori | case GDB_WATCHPOINT_ACCESS:
|
1485 | 880a7578 | aliguori | for (env = first_cpu; env != NULL; env = env->next_cpu) { |
1486 | 880a7578 | aliguori | err = cpu_watchpoint_remove(env, addr, len, xlat_gdb_type[type]); |
1487 | 880a7578 | aliguori | if (err)
|
1488 | 880a7578 | aliguori | break;
|
1489 | 880a7578 | aliguori | } |
1490 | 880a7578 | aliguori | return err;
|
1491 | a1d1bb31 | aliguori | #endif
|
1492 | a1d1bb31 | aliguori | default:
|
1493 | a1d1bb31 | aliguori | return -ENOSYS;
|
1494 | a1d1bb31 | aliguori | } |
1495 | a1d1bb31 | aliguori | } |
1496 | a1d1bb31 | aliguori | |
1497 | 880a7578 | aliguori | static void gdb_breakpoint_remove_all(void) |
1498 | a1d1bb31 | aliguori | { |
1499 | 880a7578 | aliguori | CPUState *env; |
1500 | 880a7578 | aliguori | |
1501 | 880a7578 | aliguori | for (env = first_cpu; env != NULL; env = env->next_cpu) { |
1502 | 880a7578 | aliguori | cpu_breakpoint_remove_all(env, BP_GDB); |
1503 | a1d1bb31 | aliguori | #ifndef CONFIG_USER_ONLY
|
1504 | 880a7578 | aliguori | cpu_watchpoint_remove_all(env, BP_GDB); |
1505 | a1d1bb31 | aliguori | #endif
|
1506 | 880a7578 | aliguori | } |
1507 | a1d1bb31 | aliguori | } |
1508 | a1d1bb31 | aliguori | |
1509 | 880a7578 | aliguori | static int gdb_handle_packet(GDBState *s, const char *line_buf) |
1510 | b4608c04 | bellard | { |
1511 | 880a7578 | aliguori | CPUState *env; |
1512 | b4608c04 | bellard | const char *p; |
1513 | 880a7578 | aliguori | int ch, reg_size, type, res, thread;
|
1514 | 56aebc89 | pbrook | char buf[MAX_PACKET_LENGTH];
|
1515 | 56aebc89 | pbrook | uint8_t mem_buf[MAX_PACKET_LENGTH]; |
1516 | 56aebc89 | pbrook | uint8_t *registers; |
1517 | 9d9754a3 | bellard | target_ulong addr, len; |
1518 | 3b46e624 | ths | |
1519 | 858693c6 | bellard | #ifdef DEBUG_GDB
|
1520 | 858693c6 | bellard | printf("command='%s'\n", line_buf);
|
1521 | 858693c6 | bellard | #endif
|
1522 | 858693c6 | bellard | p = line_buf; |
1523 | 858693c6 | bellard | ch = *p++; |
1524 | 858693c6 | bellard | switch(ch) {
|
1525 | 858693c6 | bellard | case '?': |
1526 | 1fddef4b | bellard | /* TODO: Make this return the correct value for user-mode. */
|
1527 | ca587a8e | aurel32 | snprintf(buf, sizeof(buf), "T%02xthread:%02x;", GDB_SIGNAL_TRAP, |
1528 | 880a7578 | aliguori | s->c_cpu->cpu_index+1);
|
1529 | 858693c6 | bellard | put_packet(s, buf); |
1530 | 7d03f82f | edgar_igl | /* Remove all the breakpoints when this query is issued,
|
1531 | 7d03f82f | edgar_igl | * because gdb is doing and initial connect and the state
|
1532 | 7d03f82f | edgar_igl | * should be cleaned up.
|
1533 | 7d03f82f | edgar_igl | */
|
1534 | 880a7578 | aliguori | gdb_breakpoint_remove_all(); |
1535 | 858693c6 | bellard | break;
|
1536 | 858693c6 | bellard | case 'c': |
1537 | 858693c6 | bellard | if (*p != '\0') { |
1538 | 9d9754a3 | bellard | addr = strtoull(p, (char **)&p, 16); |
1539 | 4c3a88a2 | bellard | #if defined(TARGET_I386)
|
1540 | 880a7578 | aliguori | s->c_cpu->eip = addr; |
1541 | 5be1a8e0 | bellard | #elif defined (TARGET_PPC)
|
1542 | 880a7578 | aliguori | s->c_cpu->nip = addr; |
1543 | 8d5f07fa | bellard | #elif defined (TARGET_SPARC)
|
1544 | 880a7578 | aliguori | s->c_cpu->pc = addr; |
1545 | 880a7578 | aliguori | s->c_cpu->npc = addr + 4;
|
1546 | b5ff1b31 | bellard | #elif defined (TARGET_ARM)
|
1547 | 880a7578 | aliguori | s->c_cpu->regs[15] = addr;
|
1548 | fdf9b3e8 | bellard | #elif defined (TARGET_SH4)
|
1549 | 880a7578 | aliguori | s->c_cpu->pc = addr; |
1550 | 8fac5803 | ths | #elif defined (TARGET_MIPS)
|
1551 | 880a7578 | aliguori | s->c_cpu->active_tc.PC = addr; |
1552 | f1ccf904 | ths | #elif defined (TARGET_CRIS)
|
1553 | 880a7578 | aliguori | s->c_cpu->pc = addr; |
1554 | 19bf517b | aurel32 | #elif defined (TARGET_ALPHA)
|
1555 | 19bf517b | aurel32 | s->c_cpu->pc = addr; |
1556 | 4c3a88a2 | bellard | #endif
|
1557 | 858693c6 | bellard | } |
1558 | ca587a8e | aurel32 | s->signal = 0;
|
1559 | ba70a624 | edgar_igl | gdb_continue(s); |
1560 | 41625033 | bellard | return RS_IDLE;
|
1561 | 1f487ee9 | edgar_igl | case 'C': |
1562 | ca587a8e | aurel32 | s->signal = gdb_signal_to_target (strtoul(p, (char **)&p, 16)); |
1563 | ca587a8e | aurel32 | if (s->signal == -1) |
1564 | ca587a8e | aurel32 | s->signal = 0;
|
1565 | 1f487ee9 | edgar_igl | gdb_continue(s); |
1566 | 1f487ee9 | edgar_igl | return RS_IDLE;
|
1567 | 7d03f82f | edgar_igl | case 'k': |
1568 | 7d03f82f | edgar_igl | /* Kill the target */
|
1569 | 7d03f82f | edgar_igl | fprintf(stderr, "\nQEMU: Terminated via GDBstub\n");
|
1570 | 7d03f82f | edgar_igl | exit(0);
|
1571 | 7d03f82f | edgar_igl | case 'D': |
1572 | 7d03f82f | edgar_igl | /* Detach packet */
|
1573 | 880a7578 | aliguori | gdb_breakpoint_remove_all(); |
1574 | 7d03f82f | edgar_igl | gdb_continue(s); |
1575 | 7d03f82f | edgar_igl | put_packet(s, "OK");
|
1576 | 7d03f82f | edgar_igl | break;
|
1577 | 858693c6 | bellard | case 's': |
1578 | 858693c6 | bellard | if (*p != '\0') { |
1579 | 8fac5803 | ths | addr = strtoull(p, (char **)&p, 16); |
1580 | c33a346e | bellard | #if defined(TARGET_I386)
|
1581 | 880a7578 | aliguori | s->c_cpu->eip = addr; |
1582 | 5be1a8e0 | bellard | #elif defined (TARGET_PPC)
|
1583 | 880a7578 | aliguori | s->c_cpu->nip = addr; |
1584 | 8d5f07fa | bellard | #elif defined (TARGET_SPARC)
|
1585 | 880a7578 | aliguori | s->c_cpu->pc = addr; |
1586 | 880a7578 | aliguori | s->c_cpu->npc = addr + 4;
|
1587 | b5ff1b31 | bellard | #elif defined (TARGET_ARM)
|
1588 | 880a7578 | aliguori | s->c_cpu->regs[15] = addr;
|
1589 | fdf9b3e8 | bellard | #elif defined (TARGET_SH4)
|
1590 | 880a7578 | aliguori | s->c_cpu->pc = addr; |
1591 | 8fac5803 | ths | #elif defined (TARGET_MIPS)
|
1592 | 880a7578 | aliguori | s->c_cpu->active_tc.PC = addr; |
1593 | f1ccf904 | ths | #elif defined (TARGET_CRIS)
|
1594 | 880a7578 | aliguori | s->c_cpu->pc = addr; |
1595 | 19bf517b | aurel32 | #elif defined (TARGET_ALPHA)
|
1596 | 19bf517b | aurel32 | s->c_cpu->pc = addr; |
1597 | c33a346e | bellard | #endif
|
1598 | 858693c6 | bellard | } |
1599 | 880a7578 | aliguori | cpu_single_step(s->c_cpu, sstep_flags); |
1600 | ba70a624 | edgar_igl | gdb_continue(s); |
1601 | 41625033 | bellard | return RS_IDLE;
|
1602 | a2d1ebaf | pbrook | case 'F': |
1603 | a2d1ebaf | pbrook | { |
1604 | a2d1ebaf | pbrook | target_ulong ret; |
1605 | a2d1ebaf | pbrook | target_ulong err; |
1606 | a2d1ebaf | pbrook | |
1607 | a2d1ebaf | pbrook | ret = strtoull(p, (char **)&p, 16); |
1608 | a2d1ebaf | pbrook | if (*p == ',') { |
1609 | a2d1ebaf | pbrook | p++; |
1610 | a2d1ebaf | pbrook | err = strtoull(p, (char **)&p, 16); |
1611 | a2d1ebaf | pbrook | } else {
|
1612 | a2d1ebaf | pbrook | err = 0;
|
1613 | a2d1ebaf | pbrook | } |
1614 | a2d1ebaf | pbrook | if (*p == ',') |
1615 | a2d1ebaf | pbrook | p++; |
1616 | a2d1ebaf | pbrook | type = *p; |
1617 | a2d1ebaf | pbrook | if (gdb_current_syscall_cb)
|
1618 | 880a7578 | aliguori | gdb_current_syscall_cb(s->c_cpu, ret, err); |
1619 | a2d1ebaf | pbrook | if (type == 'C') { |
1620 | a2d1ebaf | pbrook | put_packet(s, "T02");
|
1621 | a2d1ebaf | pbrook | } else {
|
1622 | ba70a624 | edgar_igl | gdb_continue(s); |
1623 | a2d1ebaf | pbrook | } |
1624 | a2d1ebaf | pbrook | } |
1625 | a2d1ebaf | pbrook | break;
|
1626 | 858693c6 | bellard | case 'g': |
1627 | 56aebc89 | pbrook | len = 0;
|
1628 | 56aebc89 | pbrook | for (addr = 0; addr < num_g_regs; addr++) { |
1629 | 880a7578 | aliguori | reg_size = gdb_read_register(s->g_cpu, mem_buf + len, addr); |
1630 | 56aebc89 | pbrook | len += reg_size; |
1631 | 56aebc89 | pbrook | } |
1632 | 56aebc89 | pbrook | memtohex(buf, mem_buf, len); |
1633 | 858693c6 | bellard | put_packet(s, buf); |
1634 | 858693c6 | bellard | break;
|
1635 | 858693c6 | bellard | case 'G': |
1636 | 56aebc89 | pbrook | registers = mem_buf; |
1637 | 858693c6 | bellard | len = strlen(p) / 2;
|
1638 | 858693c6 | bellard | hextomem((uint8_t *)registers, p, len); |
1639 | 56aebc89 | pbrook | for (addr = 0; addr < num_g_regs && len > 0; addr++) { |
1640 | 880a7578 | aliguori | reg_size = gdb_write_register(s->g_cpu, registers, addr); |
1641 | 56aebc89 | pbrook | len -= reg_size; |
1642 | 56aebc89 | pbrook | registers += reg_size; |
1643 | 56aebc89 | pbrook | } |
1644 | 858693c6 | bellard | put_packet(s, "OK");
|
1645 | 858693c6 | bellard | break;
|
1646 | 858693c6 | bellard | case 'm': |
1647 | 9d9754a3 | bellard | addr = strtoull(p, (char **)&p, 16); |
1648 | 858693c6 | bellard | if (*p == ',') |
1649 | 858693c6 | bellard | p++; |
1650 | 9d9754a3 | bellard | len = strtoull(p, NULL, 16); |
1651 | 880a7578 | aliguori | if (cpu_memory_rw_debug(s->g_cpu, addr, mem_buf, len, 0) != 0) { |
1652 | 6f970bd9 | bellard | put_packet (s, "E14");
|
1653 | 6f970bd9 | bellard | } else {
|
1654 | 6f970bd9 | bellard | memtohex(buf, mem_buf, len); |
1655 | 6f970bd9 | bellard | put_packet(s, buf); |
1656 | 6f970bd9 | bellard | } |
1657 | 858693c6 | bellard | break;
|
1658 | 858693c6 | bellard | case 'M': |
1659 | 9d9754a3 | bellard | addr = strtoull(p, (char **)&p, 16); |
1660 | 858693c6 | bellard | if (*p == ',') |
1661 | 858693c6 | bellard | p++; |
1662 | 9d9754a3 | bellard | len = strtoull(p, (char **)&p, 16); |
1663 | b328f873 | bellard | if (*p == ':') |
1664 | 858693c6 | bellard | p++; |
1665 | 858693c6 | bellard | hextomem(mem_buf, p, len); |
1666 | 880a7578 | aliguori | if (cpu_memory_rw_debug(s->g_cpu, addr, mem_buf, len, 1) != 0) |
1667 | 905f20b1 | bellard | put_packet(s, "E14");
|
1668 | 858693c6 | bellard | else
|
1669 | 858693c6 | bellard | put_packet(s, "OK");
|
1670 | 858693c6 | bellard | break;
|
1671 | 56aebc89 | pbrook | case 'p': |
1672 | 56aebc89 | pbrook | /* Older gdb are really dumb, and don't use 'g' if 'p' is avaialable.
|
1673 | 56aebc89 | pbrook | This works, but can be very slow. Anything new enough to
|
1674 | 56aebc89 | pbrook | understand XML also knows how to use this properly. */
|
1675 | 56aebc89 | pbrook | if (!gdb_has_xml)
|
1676 | 56aebc89 | pbrook | goto unknown_command;
|
1677 | 56aebc89 | pbrook | addr = strtoull(p, (char **)&p, 16); |
1678 | 880a7578 | aliguori | reg_size = gdb_read_register(s->g_cpu, mem_buf, addr); |
1679 | 56aebc89 | pbrook | if (reg_size) {
|
1680 | 56aebc89 | pbrook | memtohex(buf, mem_buf, reg_size); |
1681 | 56aebc89 | pbrook | put_packet(s, buf); |
1682 | 56aebc89 | pbrook | } else {
|
1683 | 56aebc89 | pbrook | put_packet(s, "E14");
|
1684 | 56aebc89 | pbrook | } |
1685 | 56aebc89 | pbrook | break;
|
1686 | 56aebc89 | pbrook | case 'P': |
1687 | 56aebc89 | pbrook | if (!gdb_has_xml)
|
1688 | 56aebc89 | pbrook | goto unknown_command;
|
1689 | 56aebc89 | pbrook | addr = strtoull(p, (char **)&p, 16); |
1690 | 56aebc89 | pbrook | if (*p == '=') |
1691 | 56aebc89 | pbrook | p++; |
1692 | 56aebc89 | pbrook | reg_size = strlen(p) / 2;
|
1693 | 56aebc89 | pbrook | hextomem(mem_buf, p, reg_size); |
1694 | 880a7578 | aliguori | gdb_write_register(s->g_cpu, mem_buf, addr); |
1695 | 56aebc89 | pbrook | put_packet(s, "OK");
|
1696 | 56aebc89 | pbrook | break;
|
1697 | 858693c6 | bellard | case 'Z': |
1698 | 858693c6 | bellard | case 'z': |
1699 | 858693c6 | bellard | type = strtoul(p, (char **)&p, 16); |
1700 | 858693c6 | bellard | if (*p == ',') |
1701 | 858693c6 | bellard | p++; |
1702 | 9d9754a3 | bellard | addr = strtoull(p, (char **)&p, 16); |
1703 | 858693c6 | bellard | if (*p == ',') |
1704 | 858693c6 | bellard | p++; |
1705 | 9d9754a3 | bellard | len = strtoull(p, (char **)&p, 16); |
1706 | a1d1bb31 | aliguori | if (ch == 'Z') |
1707 | 880a7578 | aliguori | res = gdb_breakpoint_insert(addr, len, type); |
1708 | a1d1bb31 | aliguori | else
|
1709 | 880a7578 | aliguori | res = gdb_breakpoint_remove(addr, len, type); |
1710 | a1d1bb31 | aliguori | if (res >= 0) |
1711 | a1d1bb31 | aliguori | put_packet(s, "OK");
|
1712 | a1d1bb31 | aliguori | else if (res == -ENOSYS) |
1713 | 0f459d16 | pbrook | put_packet(s, "");
|
1714 | a1d1bb31 | aliguori | else
|
1715 | a1d1bb31 | aliguori | put_packet(s, "E22");
|
1716 | 858693c6 | bellard | break;
|
1717 | 880a7578 | aliguori | case 'H': |
1718 | 880a7578 | aliguori | type = *p++; |
1719 | 880a7578 | aliguori | thread = strtoull(p, (char **)&p, 16); |
1720 | 880a7578 | aliguori | if (thread == -1 || thread == 0) { |
1721 | 880a7578 | aliguori | put_packet(s, "OK");
|
1722 | 880a7578 | aliguori | break;
|
1723 | 880a7578 | aliguori | } |
1724 | 880a7578 | aliguori | for (env = first_cpu; env != NULL; env = env->next_cpu) |
1725 | 880a7578 | aliguori | if (env->cpu_index + 1 == thread) |
1726 | 880a7578 | aliguori | break;
|
1727 | 880a7578 | aliguori | if (env == NULL) { |
1728 | 880a7578 | aliguori | put_packet(s, "E22");
|
1729 | 880a7578 | aliguori | break;
|
1730 | 880a7578 | aliguori | } |
1731 | 880a7578 | aliguori | switch (type) {
|
1732 | 880a7578 | aliguori | case 'c': |
1733 | 880a7578 | aliguori | s->c_cpu = env; |
1734 | 880a7578 | aliguori | put_packet(s, "OK");
|
1735 | 880a7578 | aliguori | break;
|
1736 | 880a7578 | aliguori | case 'g': |
1737 | 880a7578 | aliguori | s->g_cpu = env; |
1738 | 880a7578 | aliguori | put_packet(s, "OK");
|
1739 | 880a7578 | aliguori | break;
|
1740 | 880a7578 | aliguori | default:
|
1741 | 880a7578 | aliguori | put_packet(s, "E22");
|
1742 | 880a7578 | aliguori | break;
|
1743 | 880a7578 | aliguori | } |
1744 | 880a7578 | aliguori | break;
|
1745 | 880a7578 | aliguori | case 'T': |
1746 | 880a7578 | aliguori | thread = strtoull(p, (char **)&p, 16); |
1747 | 880a7578 | aliguori | #ifndef CONFIG_USER_ONLY
|
1748 | 880a7578 | aliguori | if (thread > 0 && thread < smp_cpus + 1) |
1749 | 880a7578 | aliguori | #else
|
1750 | 880a7578 | aliguori | if (thread == 1) |
1751 | 880a7578 | aliguori | #endif
|
1752 | 880a7578 | aliguori | put_packet(s, "OK");
|
1753 | 880a7578 | aliguori | else
|
1754 | 880a7578 | aliguori | put_packet(s, "E22");
|
1755 | 880a7578 | aliguori | break;
|
1756 | 978efd6a | pbrook | case 'q': |
1757 | 60897d36 | edgar_igl | case 'Q': |
1758 | 60897d36 | edgar_igl | /* parse any 'q' packets here */
|
1759 | 60897d36 | edgar_igl | if (!strcmp(p,"qemu.sstepbits")) { |
1760 | 60897d36 | edgar_igl | /* Query Breakpoint bit definitions */
|
1761 | 363a37d5 | blueswir1 | snprintf(buf, sizeof(buf), "ENABLE=%x,NOIRQ=%x,NOTIMER=%x", |
1762 | 363a37d5 | blueswir1 | SSTEP_ENABLE, |
1763 | 363a37d5 | blueswir1 | SSTEP_NOIRQ, |
1764 | 363a37d5 | blueswir1 | SSTEP_NOTIMER); |
1765 | 60897d36 | edgar_igl | put_packet(s, buf); |
1766 | 60897d36 | edgar_igl | break;
|
1767 | 60897d36 | edgar_igl | } else if (strncmp(p,"qemu.sstep",10) == 0) { |
1768 | 60897d36 | edgar_igl | /* Display or change the sstep_flags */
|
1769 | 60897d36 | edgar_igl | p += 10;
|
1770 | 60897d36 | edgar_igl | if (*p != '=') { |
1771 | 60897d36 | edgar_igl | /* Display current setting */
|
1772 | 363a37d5 | blueswir1 | snprintf(buf, sizeof(buf), "0x%x", sstep_flags); |
1773 | 60897d36 | edgar_igl | put_packet(s, buf); |
1774 | 60897d36 | edgar_igl | break;
|
1775 | 60897d36 | edgar_igl | } |
1776 | 60897d36 | edgar_igl | p++; |
1777 | 60897d36 | edgar_igl | type = strtoul(p, (char **)&p, 16); |
1778 | 60897d36 | edgar_igl | sstep_flags = type; |
1779 | 60897d36 | edgar_igl | put_packet(s, "OK");
|
1780 | 60897d36 | edgar_igl | break;
|
1781 | 880a7578 | aliguori | } else if (strcmp(p,"C") == 0) { |
1782 | 880a7578 | aliguori | /* "Current thread" remains vague in the spec, so always return
|
1783 | 880a7578 | aliguori | * the first CPU (gdb returns the first thread). */
|
1784 | 880a7578 | aliguori | put_packet(s, "QC1");
|
1785 | 880a7578 | aliguori | break;
|
1786 | 880a7578 | aliguori | } else if (strcmp(p,"fThreadInfo") == 0) { |
1787 | 880a7578 | aliguori | s->query_cpu = first_cpu; |
1788 | 880a7578 | aliguori | goto report_cpuinfo;
|
1789 | 880a7578 | aliguori | } else if (strcmp(p,"sThreadInfo") == 0) { |
1790 | 880a7578 | aliguori | report_cpuinfo:
|
1791 | 880a7578 | aliguori | if (s->query_cpu) {
|
1792 | 880a7578 | aliguori | snprintf(buf, sizeof(buf), "m%x", s->query_cpu->cpu_index+1); |
1793 | 880a7578 | aliguori | put_packet(s, buf); |
1794 | 880a7578 | aliguori | s->query_cpu = s->query_cpu->next_cpu; |
1795 | 880a7578 | aliguori | } else
|
1796 | 880a7578 | aliguori | put_packet(s, "l");
|
1797 | 880a7578 | aliguori | break;
|
1798 | 880a7578 | aliguori | } else if (strncmp(p,"ThreadExtraInfo,", 16) == 0) { |
1799 | 880a7578 | aliguori | thread = strtoull(p+16, (char **)&p, 16); |
1800 | 880a7578 | aliguori | for (env = first_cpu; env != NULL; env = env->next_cpu) |
1801 | 880a7578 | aliguori | if (env->cpu_index + 1 == thread) { |
1802 | 880a7578 | aliguori | len = snprintf((char *)mem_buf, sizeof(mem_buf), |
1803 | 880a7578 | aliguori | "CPU#%d [%s]", env->cpu_index,
|
1804 | 880a7578 | aliguori | env->halted ? "halted " : "running"); |
1805 | 880a7578 | aliguori | memtohex(buf, mem_buf, len); |
1806 | 880a7578 | aliguori | put_packet(s, buf); |
1807 | 880a7578 | aliguori | break;
|
1808 | 880a7578 | aliguori | } |
1809 | 880a7578 | aliguori | break;
|
1810 | 60897d36 | edgar_igl | } |
1811 | 0b8a988c | blueswir1 | #ifdef CONFIG_USER_ONLY
|
1812 | 60897d36 | edgar_igl | else if (strncmp(p, "Offsets", 7) == 0) { |
1813 | 880a7578 | aliguori | TaskState *ts = s->c_cpu->opaque; |
1814 | 978efd6a | pbrook | |
1815 | 363a37d5 | blueswir1 | snprintf(buf, sizeof(buf),
|
1816 | 363a37d5 | blueswir1 | "Text=" TARGET_ABI_FMT_lx ";Data=" TARGET_ABI_FMT_lx |
1817 | 363a37d5 | blueswir1 | ";Bss=" TARGET_ABI_FMT_lx,
|
1818 | 363a37d5 | blueswir1 | ts->info->code_offset, |
1819 | 363a37d5 | blueswir1 | ts->info->data_offset, |
1820 | 363a37d5 | blueswir1 | ts->info->data_offset); |
1821 | 978efd6a | pbrook | put_packet(s, buf); |
1822 | 978efd6a | pbrook | break;
|
1823 | 978efd6a | pbrook | } |
1824 | 0b8a988c | blueswir1 | #else /* !CONFIG_USER_ONLY */ |
1825 | 8a34a0fb | aliguori | else if (strncmp(p, "Rcmd,", 5) == 0) { |
1826 | 8a34a0fb | aliguori | int len = strlen(p + 5); |
1827 | 8a34a0fb | aliguori | |
1828 | 8a34a0fb | aliguori | if ((len % 2) != 0) { |
1829 | 8a34a0fb | aliguori | put_packet(s, "E01");
|
1830 | 8a34a0fb | aliguori | break;
|
1831 | 8a34a0fb | aliguori | } |
1832 | 8a34a0fb | aliguori | hextomem(mem_buf, p + 5, len);
|
1833 | 8a34a0fb | aliguori | len = len / 2;
|
1834 | 8a34a0fb | aliguori | mem_buf[len++] = 0;
|
1835 | 8a34a0fb | aliguori | qemu_chr_read(s->mon_chr, mem_buf, len); |
1836 | 8a34a0fb | aliguori | put_packet(s, "OK");
|
1837 | 8a34a0fb | aliguori | break;
|
1838 | 8a34a0fb | aliguori | } |
1839 | 0b8a988c | blueswir1 | #endif /* !CONFIG_USER_ONLY */ |
1840 | 56aebc89 | pbrook | if (strncmp(p, "Supported", 9) == 0) { |
1841 | 5b3715bf | blueswir1 | snprintf(buf, sizeof(buf), "PacketSize=%x", MAX_PACKET_LENGTH); |
1842 | 56aebc89 | pbrook | #ifdef GDB_CORE_XML
|
1843 | 56aebc89 | pbrook | strcat(buf, ";qXfer:features:read+");
|
1844 | 56aebc89 | pbrook | #endif
|
1845 | 56aebc89 | pbrook | put_packet(s, buf); |
1846 | 56aebc89 | pbrook | break;
|
1847 | 56aebc89 | pbrook | } |
1848 | 56aebc89 | pbrook | #ifdef GDB_CORE_XML
|
1849 | 56aebc89 | pbrook | if (strncmp(p, "Xfer:features:read:", 19) == 0) { |
1850 | 56aebc89 | pbrook | const char *xml; |
1851 | 56aebc89 | pbrook | target_ulong total_len; |
1852 | 56aebc89 | pbrook | |
1853 | 56aebc89 | pbrook | gdb_has_xml = 1;
|
1854 | 56aebc89 | pbrook | p += 19;
|
1855 | 880a7578 | aliguori | xml = get_feature_xml(p, &p); |
1856 | 56aebc89 | pbrook | if (!xml) {
|
1857 | 5b3715bf | blueswir1 | snprintf(buf, sizeof(buf), "E00"); |
1858 | 56aebc89 | pbrook | put_packet(s, buf); |
1859 | 56aebc89 | pbrook | break;
|
1860 | 56aebc89 | pbrook | } |
1861 | 56aebc89 | pbrook | |
1862 | 56aebc89 | pbrook | if (*p == ':') |
1863 | 56aebc89 | pbrook | p++; |
1864 | 56aebc89 | pbrook | addr = strtoul(p, (char **)&p, 16); |
1865 | 56aebc89 | pbrook | if (*p == ',') |
1866 | 56aebc89 | pbrook | p++; |
1867 | 56aebc89 | pbrook | len = strtoul(p, (char **)&p, 16); |
1868 | 56aebc89 | pbrook | |
1869 | 56aebc89 | pbrook | total_len = strlen(xml); |
1870 | 56aebc89 | pbrook | if (addr > total_len) {
|
1871 | 5b3715bf | blueswir1 | snprintf(buf, sizeof(buf), "E00"); |
1872 | 56aebc89 | pbrook | put_packet(s, buf); |
1873 | 56aebc89 | pbrook | break;
|
1874 | 56aebc89 | pbrook | } |
1875 | 56aebc89 | pbrook | if (len > (MAX_PACKET_LENGTH - 5) / 2) |
1876 | 56aebc89 | pbrook | len = (MAX_PACKET_LENGTH - 5) / 2; |
1877 | 56aebc89 | pbrook | if (len < total_len - addr) {
|
1878 | 56aebc89 | pbrook | buf[0] = 'm'; |
1879 | 56aebc89 | pbrook | len = memtox(buf + 1, xml + addr, len);
|
1880 | 56aebc89 | pbrook | } else {
|
1881 | 56aebc89 | pbrook | buf[0] = 'l'; |
1882 | 56aebc89 | pbrook | len = memtox(buf + 1, xml + addr, total_len - addr);
|
1883 | 56aebc89 | pbrook | } |
1884 | 56aebc89 | pbrook | put_packet_binary(s, buf, len + 1);
|
1885 | 56aebc89 | pbrook | break;
|
1886 | 56aebc89 | pbrook | } |
1887 | 56aebc89 | pbrook | #endif
|
1888 | 56aebc89 | pbrook | /* Unrecognised 'q' command. */
|
1889 | 56aebc89 | pbrook | goto unknown_command;
|
1890 | 56aebc89 | pbrook | |
1891 | 858693c6 | bellard | default:
|
1892 | 56aebc89 | pbrook | unknown_command:
|
1893 | 858693c6 | bellard | /* put empty packet */
|
1894 | 858693c6 | bellard | buf[0] = '\0'; |
1895 | 858693c6 | bellard | put_packet(s, buf); |
1896 | 858693c6 | bellard | break;
|
1897 | 858693c6 | bellard | } |
1898 | 858693c6 | bellard | return RS_IDLE;
|
1899 | 858693c6 | bellard | } |
1900 | 858693c6 | bellard | |
1901 | 880a7578 | aliguori | void gdb_set_stop_cpu(CPUState *env)
|
1902 | 880a7578 | aliguori | { |
1903 | 880a7578 | aliguori | gdbserver_state->c_cpu = env; |
1904 | 880a7578 | aliguori | gdbserver_state->g_cpu = env; |
1905 | 880a7578 | aliguori | } |
1906 | 880a7578 | aliguori | |
1907 | 1fddef4b | bellard | #ifndef CONFIG_USER_ONLY
|
1908 | 9781e040 | aliguori | static void gdb_vm_state_change(void *opaque, int running, int reason) |
1909 | 858693c6 | bellard | { |
1910 | 880a7578 | aliguori | GDBState *s = gdbserver_state; |
1911 | 880a7578 | aliguori | CPUState *env = s->c_cpu; |
1912 | 858693c6 | bellard | char buf[256]; |
1913 | d6fc1b39 | aliguori | const char *type; |
1914 | 858693c6 | bellard | int ret;
|
1915 | 858693c6 | bellard | |
1916 | 9781e040 | aliguori | if (running || (reason != EXCP_DEBUG && reason != EXCP_INTERRUPT) ||
|
1917 | 9781e040 | aliguori | s->state == RS_SYSCALL) |
1918 | a2d1ebaf | pbrook | return;
|
1919 | a2d1ebaf | pbrook | |
1920 | 858693c6 | bellard | /* disable single step if it was enable */
|
1921 | 880a7578 | aliguori | cpu_single_step(env, 0);
|
1922 | 858693c6 | bellard | |
1923 | e80cfcfc | bellard | if (reason == EXCP_DEBUG) {
|
1924 | 880a7578 | aliguori | if (env->watchpoint_hit) {
|
1925 | 880a7578 | aliguori | switch (env->watchpoint_hit->flags & BP_MEM_ACCESS) {
|
1926 | a1d1bb31 | aliguori | case BP_MEM_READ:
|
1927 | d6fc1b39 | aliguori | type = "r";
|
1928 | d6fc1b39 | aliguori | break;
|
1929 | a1d1bb31 | aliguori | case BP_MEM_ACCESS:
|
1930 | d6fc1b39 | aliguori | type = "a";
|
1931 | d6fc1b39 | aliguori | break;
|
1932 | d6fc1b39 | aliguori | default:
|
1933 | d6fc1b39 | aliguori | type = "";
|
1934 | d6fc1b39 | aliguori | break;
|
1935 | d6fc1b39 | aliguori | } |
1936 | 880a7578 | aliguori | snprintf(buf, sizeof(buf),
|
1937 | 880a7578 | aliguori | "T%02xthread:%02x;%swatch:" TARGET_FMT_lx ";", |
1938 | ca587a8e | aurel32 | GDB_SIGNAL_TRAP, env->cpu_index+1, type,
|
1939 | 880a7578 | aliguori | env->watchpoint_hit->vaddr); |
1940 | 6658ffb8 | pbrook | put_packet(s, buf); |
1941 | 880a7578 | aliguori | env->watchpoint_hit = NULL;
|
1942 | 6658ffb8 | pbrook | return;
|
1943 | 6658ffb8 | pbrook | } |
1944 | 880a7578 | aliguori | tb_flush(env); |
1945 | ca587a8e | aurel32 | ret = GDB_SIGNAL_TRAP; |
1946 | bbeb7b5c | bellard | } else {
|
1947 | 9781e040 | aliguori | ret = GDB_SIGNAL_INT; |
1948 | bbeb7b5c | bellard | } |
1949 | 880a7578 | aliguori | snprintf(buf, sizeof(buf), "T%02xthread:%02x;", ret, env->cpu_index+1); |
1950 | 858693c6 | bellard | put_packet(s, buf); |
1951 | 858693c6 | bellard | } |
1952 | 1fddef4b | bellard | #endif
|
1953 | 858693c6 | bellard | |
1954 | a2d1ebaf | pbrook | /* Send a gdb syscall request.
|
1955 | a2d1ebaf | pbrook | This accepts limited printf-style format specifiers, specifically:
|
1956 | a87295e8 | pbrook | %x - target_ulong argument printed in hex.
|
1957 | a87295e8 | pbrook | %lx - 64-bit argument printed in hex.
|
1958 | a87295e8 | pbrook | %s - string pointer (target_ulong) and length (int) pair. */
|
1959 | 7ccfb2eb | blueswir1 | void gdb_do_syscall(gdb_syscall_complete_cb cb, const char *fmt, ...) |
1960 | a2d1ebaf | pbrook | { |
1961 | a2d1ebaf | pbrook | va_list va; |
1962 | a2d1ebaf | pbrook | char buf[256]; |
1963 | a2d1ebaf | pbrook | char *p;
|
1964 | a2d1ebaf | pbrook | target_ulong addr; |
1965 | a87295e8 | pbrook | uint64_t i64; |
1966 | a2d1ebaf | pbrook | GDBState *s; |
1967 | a2d1ebaf | pbrook | |
1968 | 880a7578 | aliguori | s = gdbserver_state; |
1969 | a2d1ebaf | pbrook | if (!s)
|
1970 | a2d1ebaf | pbrook | return;
|
1971 | a2d1ebaf | pbrook | gdb_current_syscall_cb = cb; |
1972 | a2d1ebaf | pbrook | s->state = RS_SYSCALL; |
1973 | a2d1ebaf | pbrook | #ifndef CONFIG_USER_ONLY
|
1974 | a2d1ebaf | pbrook | vm_stop(EXCP_DEBUG); |
1975 | a2d1ebaf | pbrook | #endif
|
1976 | a2d1ebaf | pbrook | s->state = RS_IDLE; |
1977 | a2d1ebaf | pbrook | va_start(va, fmt); |
1978 | a2d1ebaf | pbrook | p = buf; |
1979 | a2d1ebaf | pbrook | *(p++) = 'F';
|
1980 | a2d1ebaf | pbrook | while (*fmt) {
|
1981 | a2d1ebaf | pbrook | if (*fmt == '%') { |
1982 | a2d1ebaf | pbrook | fmt++; |
1983 | a2d1ebaf | pbrook | switch (*fmt++) {
|
1984 | a2d1ebaf | pbrook | case 'x': |
1985 | a2d1ebaf | pbrook | addr = va_arg(va, target_ulong); |
1986 | 363a37d5 | blueswir1 | p += snprintf(p, &buf[sizeof(buf)] - p, TARGET_FMT_lx, addr);
|
1987 | a2d1ebaf | pbrook | break;
|
1988 | a87295e8 | pbrook | case 'l': |
1989 | a87295e8 | pbrook | if (*(fmt++) != 'x') |
1990 | a87295e8 | pbrook | goto bad_format;
|
1991 | a87295e8 | pbrook | i64 = va_arg(va, uint64_t); |
1992 | 363a37d5 | blueswir1 | p += snprintf(p, &buf[sizeof(buf)] - p, "%" PRIx64, i64); |
1993 | a87295e8 | pbrook | break;
|
1994 | a2d1ebaf | pbrook | case 's': |
1995 | a2d1ebaf | pbrook | addr = va_arg(va, target_ulong); |
1996 | 363a37d5 | blueswir1 | p += snprintf(p, &buf[sizeof(buf)] - p, TARGET_FMT_lx "/%x", |
1997 | 363a37d5 | blueswir1 | addr, va_arg(va, int));
|
1998 | a2d1ebaf | pbrook | break;
|
1999 | a2d1ebaf | pbrook | default:
|
2000 | a87295e8 | pbrook | bad_format:
|
2001 | a2d1ebaf | pbrook | fprintf(stderr, "gdbstub: Bad syscall format string '%s'\n",
|
2002 | a2d1ebaf | pbrook | fmt - 1);
|
2003 | a2d1ebaf | pbrook | break;
|
2004 | a2d1ebaf | pbrook | } |
2005 | a2d1ebaf | pbrook | } else {
|
2006 | a2d1ebaf | pbrook | *(p++) = *(fmt++); |
2007 | a2d1ebaf | pbrook | } |
2008 | a2d1ebaf | pbrook | } |
2009 | 8a93e02a | pbrook | *p = 0;
|
2010 | a2d1ebaf | pbrook | va_end(va); |
2011 | a2d1ebaf | pbrook | put_packet(s, buf); |
2012 | a2d1ebaf | pbrook | #ifdef CONFIG_USER_ONLY
|
2013 | 880a7578 | aliguori | gdb_handlesig(s->c_cpu, 0);
|
2014 | a2d1ebaf | pbrook | #else
|
2015 | 880a7578 | aliguori | cpu_interrupt(s->c_cpu, CPU_INTERRUPT_EXIT); |
2016 | a2d1ebaf | pbrook | #endif
|
2017 | a2d1ebaf | pbrook | } |
2018 | a2d1ebaf | pbrook | |
2019 | 6a00d601 | bellard | static void gdb_read_byte(GDBState *s, int ch) |
2020 | 858693c6 | bellard | { |
2021 | 858693c6 | bellard | int i, csum;
|
2022 | 60fe76f3 | ths | uint8_t reply; |
2023 | 858693c6 | bellard | |
2024 | 1fddef4b | bellard | #ifndef CONFIG_USER_ONLY
|
2025 | 4046d913 | pbrook | if (s->last_packet_len) {
|
2026 | 4046d913 | pbrook | /* Waiting for a response to the last packet. If we see the start
|
2027 | 4046d913 | pbrook | of a new command then abandon the previous response. */
|
2028 | 4046d913 | pbrook | if (ch == '-') { |
2029 | 4046d913 | pbrook | #ifdef DEBUG_GDB
|
2030 | 4046d913 | pbrook | printf("Got NACK, retransmitting\n");
|
2031 | 4046d913 | pbrook | #endif
|
2032 | ffe8ab83 | ths | put_buffer(s, (uint8_t *)s->last_packet, s->last_packet_len); |
2033 | 4046d913 | pbrook | } |
2034 | 4046d913 | pbrook | #ifdef DEBUG_GDB
|
2035 | 4046d913 | pbrook | else if (ch == '+') |
2036 | 4046d913 | pbrook | printf("Got ACK\n");
|
2037 | 4046d913 | pbrook | else
|
2038 | 4046d913 | pbrook | printf("Got '%c' when expecting ACK/NACK\n", ch);
|
2039 | 4046d913 | pbrook | #endif
|
2040 | 4046d913 | pbrook | if (ch == '+' || ch == '$') |
2041 | 4046d913 | pbrook | s->last_packet_len = 0;
|
2042 | 4046d913 | pbrook | if (ch != '$') |
2043 | 4046d913 | pbrook | return;
|
2044 | 4046d913 | pbrook | } |
2045 | 858693c6 | bellard | if (vm_running) {
|
2046 | 858693c6 | bellard | /* when the CPU is running, we cannot do anything except stop
|
2047 | 858693c6 | bellard | it when receiving a char */
|
2048 | 858693c6 | bellard | vm_stop(EXCP_INTERRUPT); |
2049 | 5fafdf24 | ths | } else
|
2050 | 1fddef4b | bellard | #endif
|
2051 | 41625033 | bellard | { |
2052 | 858693c6 | bellard | switch(s->state) {
|
2053 | 858693c6 | bellard | case RS_IDLE:
|
2054 | 858693c6 | bellard | if (ch == '$') { |
2055 | 858693c6 | bellard | s->line_buf_index = 0;
|
2056 | 858693c6 | bellard | s->state = RS_GETLINE; |
2057 | c33a346e | bellard | } |
2058 | b4608c04 | bellard | break;
|
2059 | 858693c6 | bellard | case RS_GETLINE:
|
2060 | 858693c6 | bellard | if (ch == '#') { |
2061 | 858693c6 | bellard | s->state = RS_CHKSUM1; |
2062 | 858693c6 | bellard | } else if (s->line_buf_index >= sizeof(s->line_buf) - 1) { |
2063 | 858693c6 | bellard | s->state = RS_IDLE; |
2064 | 4c3a88a2 | bellard | } else {
|
2065 | 858693c6 | bellard | s->line_buf[s->line_buf_index++] = ch; |
2066 | 4c3a88a2 | bellard | } |
2067 | 4c3a88a2 | bellard | break;
|
2068 | 858693c6 | bellard | case RS_CHKSUM1:
|
2069 | 858693c6 | bellard | s->line_buf[s->line_buf_index] = '\0';
|
2070 | 858693c6 | bellard | s->line_csum = fromhex(ch) << 4;
|
2071 | 858693c6 | bellard | s->state = RS_CHKSUM2; |
2072 | 858693c6 | bellard | break;
|
2073 | 858693c6 | bellard | case RS_CHKSUM2:
|
2074 | 858693c6 | bellard | s->line_csum |= fromhex(ch); |
2075 | 858693c6 | bellard | csum = 0;
|
2076 | 858693c6 | bellard | for(i = 0; i < s->line_buf_index; i++) { |
2077 | 858693c6 | bellard | csum += s->line_buf[i]; |
2078 | 858693c6 | bellard | } |
2079 | 858693c6 | bellard | if (s->line_csum != (csum & 0xff)) { |
2080 | 60fe76f3 | ths | reply = '-';
|
2081 | 60fe76f3 | ths | put_buffer(s, &reply, 1);
|
2082 | 858693c6 | bellard | s->state = RS_IDLE; |
2083 | 4c3a88a2 | bellard | } else {
|
2084 | 60fe76f3 | ths | reply = '+';
|
2085 | 60fe76f3 | ths | put_buffer(s, &reply, 1);
|
2086 | 880a7578 | aliguori | s->state = gdb_handle_packet(s, s->line_buf); |
2087 | 4c3a88a2 | bellard | } |
2088 | 4c3a88a2 | bellard | break;
|
2089 | a2d1ebaf | pbrook | default:
|
2090 | a2d1ebaf | pbrook | abort(); |
2091 | 858693c6 | bellard | } |
2092 | 858693c6 | bellard | } |
2093 | 858693c6 | bellard | } |
2094 | 858693c6 | bellard | |
2095 | 1fddef4b | bellard | #ifdef CONFIG_USER_ONLY
|
2096 | 1fddef4b | bellard | int
|
2097 | ca587a8e | aurel32 | gdb_queuesig (void)
|
2098 | ca587a8e | aurel32 | { |
2099 | ca587a8e | aurel32 | GDBState *s; |
2100 | ca587a8e | aurel32 | |
2101 | ca587a8e | aurel32 | s = gdbserver_state; |
2102 | ca587a8e | aurel32 | |
2103 | ca587a8e | aurel32 | if (gdbserver_fd < 0 || s->fd < 0) |
2104 | ca587a8e | aurel32 | return 0; |
2105 | ca587a8e | aurel32 | else
|
2106 | ca587a8e | aurel32 | return 1; |
2107 | ca587a8e | aurel32 | } |
2108 | ca587a8e | aurel32 | |
2109 | ca587a8e | aurel32 | int
|
2110 | 1fddef4b | bellard | gdb_handlesig (CPUState *env, int sig)
|
2111 | 1fddef4b | bellard | { |
2112 | 1fddef4b | bellard | GDBState *s; |
2113 | 1fddef4b | bellard | char buf[256]; |
2114 | 1fddef4b | bellard | int n;
|
2115 | 1fddef4b | bellard | |
2116 | 880a7578 | aliguori | s = gdbserver_state; |
2117 | 1f487ee9 | edgar_igl | if (gdbserver_fd < 0 || s->fd < 0) |
2118 | 1f487ee9 | edgar_igl | return sig;
|
2119 | 1fddef4b | bellard | |
2120 | 1fddef4b | bellard | /* disable single step if it was enabled */
|
2121 | 1fddef4b | bellard | cpu_single_step(env, 0);
|
2122 | 1fddef4b | bellard | tb_flush(env); |
2123 | 1fddef4b | bellard | |
2124 | 1fddef4b | bellard | if (sig != 0) |
2125 | 1fddef4b | bellard | { |
2126 | ca587a8e | aurel32 | snprintf(buf, sizeof(buf), "S%02x", target_signal_to_gdb (sig)); |
2127 | 1fddef4b | bellard | put_packet(s, buf); |
2128 | 1fddef4b | bellard | } |
2129 | 1f487ee9 | edgar_igl | /* put_packet() might have detected that the peer terminated the
|
2130 | 1f487ee9 | edgar_igl | connection. */
|
2131 | 1f487ee9 | edgar_igl | if (s->fd < 0) |
2132 | 1f487ee9 | edgar_igl | return sig;
|
2133 | 1fddef4b | bellard | |
2134 | 1fddef4b | bellard | sig = 0;
|
2135 | 1fddef4b | bellard | s->state = RS_IDLE; |
2136 | 41625033 | bellard | s->running_state = 0;
|
2137 | 41625033 | bellard | while (s->running_state == 0) { |
2138 | 1fddef4b | bellard | n = read (s->fd, buf, 256);
|
2139 | 1fddef4b | bellard | if (n > 0) |
2140 | 1fddef4b | bellard | { |
2141 | 1fddef4b | bellard | int i;
|
2142 | 1fddef4b | bellard | |
2143 | 1fddef4b | bellard | for (i = 0; i < n; i++) |
2144 | 6a00d601 | bellard | gdb_read_byte (s, buf[i]); |
2145 | 1fddef4b | bellard | } |
2146 | 1fddef4b | bellard | else if (n == 0 || errno != EAGAIN) |
2147 | 1fddef4b | bellard | { |
2148 | 1fddef4b | bellard | /* XXX: Connection closed. Should probably wait for annother
|
2149 | 1fddef4b | bellard | connection before continuing. */
|
2150 | 1fddef4b | bellard | return sig;
|
2151 | 1fddef4b | bellard | } |
2152 | 41625033 | bellard | } |
2153 | 1f487ee9 | edgar_igl | sig = s->signal; |
2154 | 1f487ee9 | edgar_igl | s->signal = 0;
|
2155 | 1fddef4b | bellard | return sig;
|
2156 | 1fddef4b | bellard | } |
2157 | e9009676 | bellard | |
2158 | e9009676 | bellard | /* Tell the remote gdb that the process has exited. */
|
2159 | e9009676 | bellard | void gdb_exit(CPUState *env, int code) |
2160 | e9009676 | bellard | { |
2161 | e9009676 | bellard | GDBState *s; |
2162 | e9009676 | bellard | char buf[4]; |
2163 | e9009676 | bellard | |
2164 | 880a7578 | aliguori | s = gdbserver_state; |
2165 | 1f487ee9 | edgar_igl | if (gdbserver_fd < 0 || s->fd < 0) |
2166 | 1f487ee9 | edgar_igl | return;
|
2167 | e9009676 | bellard | |
2168 | e9009676 | bellard | snprintf(buf, sizeof(buf), "W%02x", code); |
2169 | e9009676 | bellard | put_packet(s, buf); |
2170 | e9009676 | bellard | } |
2171 | e9009676 | bellard | |
2172 | ca587a8e | aurel32 | /* Tell the remote gdb that the process has exited due to SIG. */
|
2173 | ca587a8e | aurel32 | void gdb_signalled(CPUState *env, int sig) |
2174 | ca587a8e | aurel32 | { |
2175 | ca587a8e | aurel32 | GDBState *s; |
2176 | ca587a8e | aurel32 | char buf[4]; |
2177 | ca587a8e | aurel32 | |
2178 | ca587a8e | aurel32 | s = gdbserver_state; |
2179 | ca587a8e | aurel32 | if (gdbserver_fd < 0 || s->fd < 0) |
2180 | ca587a8e | aurel32 | return;
|
2181 | ca587a8e | aurel32 | |
2182 | ca587a8e | aurel32 | snprintf(buf, sizeof(buf), "X%02x", target_signal_to_gdb (sig)); |
2183 | ca587a8e | aurel32 | put_packet(s, buf); |
2184 | ca587a8e | aurel32 | } |
2185 | 1fddef4b | bellard | |
2186 | 880a7578 | aliguori | static void gdb_accept(void) |
2187 | 858693c6 | bellard | { |
2188 | 858693c6 | bellard | GDBState *s; |
2189 | 858693c6 | bellard | struct sockaddr_in sockaddr;
|
2190 | 858693c6 | bellard | socklen_t len; |
2191 | 858693c6 | bellard | int val, fd;
|
2192 | 858693c6 | bellard | |
2193 | 858693c6 | bellard | for(;;) {
|
2194 | 858693c6 | bellard | len = sizeof(sockaddr);
|
2195 | 858693c6 | bellard | fd = accept(gdbserver_fd, (struct sockaddr *)&sockaddr, &len);
|
2196 | 858693c6 | bellard | if (fd < 0 && errno != EINTR) { |
2197 | 858693c6 | bellard | perror("accept");
|
2198 | 858693c6 | bellard | return;
|
2199 | 858693c6 | bellard | } else if (fd >= 0) { |
2200 | b4608c04 | bellard | break;
|
2201 | b4608c04 | bellard | } |
2202 | b4608c04 | bellard | } |
2203 | 858693c6 | bellard | |
2204 | 858693c6 | bellard | /* set short latency */
|
2205 | 858693c6 | bellard | val = 1;
|
2206 | 8f447cc7 | bellard | setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char *)&val, sizeof(val)); |
2207 | 3b46e624 | ths | |
2208 | 880a7578 | aliguori | s = qemu_mallocz(sizeof(GDBState));
|
2209 | 880a7578 | aliguori | |
2210 | 1fddef4b | bellard | memset (s, 0, sizeof (GDBState)); |
2211 | 880a7578 | aliguori | s->c_cpu = first_cpu; |
2212 | 880a7578 | aliguori | s->g_cpu = first_cpu; |
2213 | 858693c6 | bellard | s->fd = fd; |
2214 | 56aebc89 | pbrook | gdb_has_xml = 0;
|
2215 | 858693c6 | bellard | |
2216 | 880a7578 | aliguori | gdbserver_state = s; |
2217 | a2d1ebaf | pbrook | |
2218 | 858693c6 | bellard | fcntl(fd, F_SETFL, O_NONBLOCK); |
2219 | 858693c6 | bellard | } |
2220 | 858693c6 | bellard | |
2221 | 858693c6 | bellard | static int gdbserver_open(int port) |
2222 | 858693c6 | bellard | { |
2223 | 858693c6 | bellard | struct sockaddr_in sockaddr;
|
2224 | 858693c6 | bellard | int fd, val, ret;
|
2225 | 858693c6 | bellard | |
2226 | 858693c6 | bellard | fd = socket(PF_INET, SOCK_STREAM, 0);
|
2227 | 858693c6 | bellard | if (fd < 0) { |
2228 | 858693c6 | bellard | perror("socket");
|
2229 | 858693c6 | bellard | return -1; |
2230 | 858693c6 | bellard | } |
2231 | 858693c6 | bellard | |
2232 | 858693c6 | bellard | /* allow fast reuse */
|
2233 | 858693c6 | bellard | val = 1;
|
2234 | 8f447cc7 | bellard | setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char *)&val, sizeof(val)); |
2235 | 858693c6 | bellard | |
2236 | 858693c6 | bellard | sockaddr.sin_family = AF_INET; |
2237 | 858693c6 | bellard | sockaddr.sin_port = htons(port); |
2238 | 858693c6 | bellard | sockaddr.sin_addr.s_addr = 0;
|
2239 | 858693c6 | bellard | ret = bind(fd, (struct sockaddr *)&sockaddr, sizeof(sockaddr)); |
2240 | 858693c6 | bellard | if (ret < 0) { |
2241 | 858693c6 | bellard | perror("bind");
|
2242 | 858693c6 | bellard | return -1; |
2243 | 858693c6 | bellard | } |
2244 | 858693c6 | bellard | ret = listen(fd, 0);
|
2245 | 858693c6 | bellard | if (ret < 0) { |
2246 | 858693c6 | bellard | perror("listen");
|
2247 | 858693c6 | bellard | return -1; |
2248 | 858693c6 | bellard | } |
2249 | 858693c6 | bellard | return fd;
|
2250 | 858693c6 | bellard | } |
2251 | 858693c6 | bellard | |
2252 | 858693c6 | bellard | int gdbserver_start(int port) |
2253 | 858693c6 | bellard | { |
2254 | 858693c6 | bellard | gdbserver_fd = gdbserver_open(port); |
2255 | 858693c6 | bellard | if (gdbserver_fd < 0) |
2256 | 858693c6 | bellard | return -1; |
2257 | 858693c6 | bellard | /* accept connections */
|
2258 | 880a7578 | aliguori | gdb_accept(); |
2259 | 4046d913 | pbrook | return 0; |
2260 | 4046d913 | pbrook | } |
2261 | 2b1319c8 | aurel32 | |
2262 | 2b1319c8 | aurel32 | /* Disable gdb stub for child processes. */
|
2263 | 2b1319c8 | aurel32 | void gdbserver_fork(CPUState *env)
|
2264 | 2b1319c8 | aurel32 | { |
2265 | 2b1319c8 | aurel32 | GDBState *s = gdbserver_state; |
2266 | 9f6164d6 | edgar_igl | if (gdbserver_fd < 0 || s->fd < 0) |
2267 | 2b1319c8 | aurel32 | return;
|
2268 | 2b1319c8 | aurel32 | close(s->fd); |
2269 | 2b1319c8 | aurel32 | s->fd = -1;
|
2270 | 2b1319c8 | aurel32 | cpu_breakpoint_remove_all(env, BP_GDB); |
2271 | 2b1319c8 | aurel32 | cpu_watchpoint_remove_all(env, BP_GDB); |
2272 | 2b1319c8 | aurel32 | } |
2273 | 1fddef4b | bellard | #else
|
2274 | aa1f17c1 | ths | static int gdb_chr_can_receive(void *opaque) |
2275 | 4046d913 | pbrook | { |
2276 | 56aebc89 | pbrook | /* We can handle an arbitrarily large amount of data.
|
2277 | 56aebc89 | pbrook | Pick the maximum packet size, which is as good as anything. */
|
2278 | 56aebc89 | pbrook | return MAX_PACKET_LENGTH;
|
2279 | 4046d913 | pbrook | } |
2280 | 4046d913 | pbrook | |
2281 | aa1f17c1 | ths | static void gdb_chr_receive(void *opaque, const uint8_t *buf, int size) |
2282 | 4046d913 | pbrook | { |
2283 | 4046d913 | pbrook | int i;
|
2284 | 4046d913 | pbrook | |
2285 | 4046d913 | pbrook | for (i = 0; i < size; i++) { |
2286 | 880a7578 | aliguori | gdb_read_byte(gdbserver_state, buf[i]); |
2287 | 4046d913 | pbrook | } |
2288 | 4046d913 | pbrook | } |
2289 | 4046d913 | pbrook | |
2290 | 4046d913 | pbrook | static void gdb_chr_event(void *opaque, int event) |
2291 | 4046d913 | pbrook | { |
2292 | 4046d913 | pbrook | switch (event) {
|
2293 | 4046d913 | pbrook | case CHR_EVENT_RESET:
|
2294 | 4046d913 | pbrook | vm_stop(EXCP_INTERRUPT); |
2295 | 56aebc89 | pbrook | gdb_has_xml = 0;
|
2296 | 4046d913 | pbrook | break;
|
2297 | 4046d913 | pbrook | default:
|
2298 | 4046d913 | pbrook | break;
|
2299 | 4046d913 | pbrook | } |
2300 | 4046d913 | pbrook | } |
2301 | 4046d913 | pbrook | |
2302 | 8a34a0fb | aliguori | static void gdb_monitor_output(GDBState *s, const char *msg, int len) |
2303 | 8a34a0fb | aliguori | { |
2304 | 8a34a0fb | aliguori | char buf[MAX_PACKET_LENGTH];
|
2305 | 8a34a0fb | aliguori | |
2306 | 8a34a0fb | aliguori | buf[0] = 'O'; |
2307 | 8a34a0fb | aliguori | if (len > (MAX_PACKET_LENGTH/2) - 1) |
2308 | 8a34a0fb | aliguori | len = (MAX_PACKET_LENGTH/2) - 1; |
2309 | 8a34a0fb | aliguori | memtohex(buf + 1, (uint8_t *)msg, len);
|
2310 | 8a34a0fb | aliguori | put_packet(s, buf); |
2311 | 8a34a0fb | aliguori | } |
2312 | 8a34a0fb | aliguori | |
2313 | 8a34a0fb | aliguori | static int gdb_monitor_write(CharDriverState *chr, const uint8_t *buf, int len) |
2314 | 8a34a0fb | aliguori | { |
2315 | 8a34a0fb | aliguori | const char *p = (const char *)buf; |
2316 | 8a34a0fb | aliguori | int max_sz;
|
2317 | 8a34a0fb | aliguori | |
2318 | 8a34a0fb | aliguori | max_sz = (sizeof(gdbserver_state->last_packet) - 2) / 2; |
2319 | 8a34a0fb | aliguori | for (;;) {
|
2320 | 8a34a0fb | aliguori | if (len <= max_sz) {
|
2321 | 8a34a0fb | aliguori | gdb_monitor_output(gdbserver_state, p, len); |
2322 | 8a34a0fb | aliguori | break;
|
2323 | 8a34a0fb | aliguori | } |
2324 | 8a34a0fb | aliguori | gdb_monitor_output(gdbserver_state, p, max_sz); |
2325 | 8a34a0fb | aliguori | p += max_sz; |
2326 | 8a34a0fb | aliguori | len -= max_sz; |
2327 | 8a34a0fb | aliguori | } |
2328 | 8a34a0fb | aliguori | return len;
|
2329 | 8a34a0fb | aliguori | } |
2330 | 8a34a0fb | aliguori | |
2331 | cfc3475a | pbrook | int gdbserver_start(const char *port) |
2332 | 4046d913 | pbrook | { |
2333 | 4046d913 | pbrook | GDBState *s; |
2334 | cfc3475a | pbrook | char gdbstub_port_name[128]; |
2335 | cfc3475a | pbrook | int port_num;
|
2336 | cfc3475a | pbrook | char *p;
|
2337 | cfc3475a | pbrook | CharDriverState *chr; |
2338 | cfc3475a | pbrook | |
2339 | cfc3475a | pbrook | if (!port || !*port)
|
2340 | cfc3475a | pbrook | return -1; |
2341 | 4046d913 | pbrook | |
2342 | cfc3475a | pbrook | port_num = strtol(port, &p, 10);
|
2343 | cfc3475a | pbrook | if (*p == 0) { |
2344 | cfc3475a | pbrook | /* A numeric value is interpreted as a port number. */
|
2345 | cfc3475a | pbrook | snprintf(gdbstub_port_name, sizeof(gdbstub_port_name),
|
2346 | cfc3475a | pbrook | "tcp::%d,nowait,nodelay,server", port_num);
|
2347 | cfc3475a | pbrook | port = gdbstub_port_name; |
2348 | cfc3475a | pbrook | } |
2349 | cfc3475a | pbrook | |
2350 | ceecf1d1 | aurel32 | chr = qemu_chr_open("gdb", port, NULL); |
2351 | 4046d913 | pbrook | if (!chr)
|
2352 | 4046d913 | pbrook | return -1; |
2353 | 4046d913 | pbrook | |
2354 | 4046d913 | pbrook | s = qemu_mallocz(sizeof(GDBState));
|
2355 | 880a7578 | aliguori | s->c_cpu = first_cpu; |
2356 | 880a7578 | aliguori | s->g_cpu = first_cpu; |
2357 | 4046d913 | pbrook | s->chr = chr; |
2358 | 880a7578 | aliguori | gdbserver_state = s; |
2359 | aa1f17c1 | ths | qemu_chr_add_handlers(chr, gdb_chr_can_receive, gdb_chr_receive, |
2360 | 880a7578 | aliguori | gdb_chr_event, NULL);
|
2361 | 9781e040 | aliguori | qemu_add_vm_change_state_handler(gdb_vm_state_change, NULL);
|
2362 | 8a34a0fb | aliguori | |
2363 | 8a34a0fb | aliguori | /* Initialize a monitor terminal for gdb */
|
2364 | 8a34a0fb | aliguori | s->mon_chr = qemu_mallocz(sizeof(*s->mon_chr));
|
2365 | 8a34a0fb | aliguori | s->mon_chr->chr_write = gdb_monitor_write; |
2366 | 8a34a0fb | aliguori | monitor_init(s->mon_chr, 0);
|
2367 | 8a34a0fb | aliguori | |
2368 | b4608c04 | bellard | return 0; |
2369 | b4608c04 | bellard | } |
2370 | 4046d913 | pbrook | #endif |