sewardj | 112711a | 2015-04-10 12:30:09 +0000 | [diff] [blame] | 1 | /* Low level interface to valgrind, for the remote server for GDB integrated |
| 2 | in valgrind. |
| 3 | Copyright (C) 2012 |
| 4 | Free Software Foundation, Inc. |
| 5 | |
| 6 | This file is part of VALGRIND. |
| 7 | It has been inspired from a file from gdbserver in gdb 6.6. |
| 8 | |
| 9 | This program is free software; you can redistribute it and/or modify |
| 10 | it under the terms of the GNU General Public License as published by |
| 11 | the Free Software Foundation; either version 2 of the License, or |
| 12 | (at your option) any later version. |
| 13 | |
| 14 | This program is distributed in the hope that it will be useful, |
| 15 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | GNU General Public License for more details. |
| 18 | |
| 19 | You should have received a copy of the GNU General Public License |
| 20 | along with this program; if not, write to the Free Software |
| 21 | Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| 22 | Boston, MA 02110-1301, USA. */ |
| 23 | |
| 24 | #include "server.h" |
| 25 | #include "target.h" |
| 26 | #include "regdef.h" |
| 27 | #include "regcache.h" |
| 28 | |
| 29 | #include "pub_core_aspacemgr.h" |
| 30 | #include "pub_core_threadstate.h" |
| 31 | #include "pub_core_transtab.h" |
| 32 | #include "pub_core_gdbserver.h" |
| 33 | |
| 34 | #include "valgrind_low.h" |
| 35 | |
| 36 | #include "libvex_guest_tilegx.h" |
| 37 | #define REG_ONE(_n) { "r"#_n, 64 * (_n), 64 } |
| 38 | #define REG_ONE_NAME(_n, _name) { _name, 64 * (_n), 64 } |
| 39 | |
| 40 | static struct reg regs[] = { |
| 41 | REG_ONE(0), |
| 42 | REG_ONE(1), |
| 43 | REG_ONE(2), |
| 44 | REG_ONE(3), |
| 45 | REG_ONE(4), |
| 46 | REG_ONE(5), |
| 47 | REG_ONE(6), |
| 48 | REG_ONE(7), |
| 49 | REG_ONE(8), |
| 50 | REG_ONE(9), |
| 51 | |
| 52 | REG_ONE(10), |
| 53 | REG_ONE(11), |
| 54 | REG_ONE(12), |
| 55 | REG_ONE(13), |
| 56 | REG_ONE(14), |
| 57 | REG_ONE(15), |
| 58 | REG_ONE(16), |
| 59 | REG_ONE(17), |
| 60 | REG_ONE(18), |
| 61 | REG_ONE(19), |
| 62 | |
| 63 | REG_ONE(20), |
| 64 | REG_ONE(21), |
| 65 | REG_ONE(22), |
| 66 | REG_ONE(23), |
| 67 | REG_ONE(24), |
| 68 | REG_ONE(25), |
| 69 | REG_ONE(26), |
| 70 | REG_ONE(27), |
| 71 | REG_ONE(28), |
| 72 | REG_ONE(29), |
| 73 | |
| 74 | REG_ONE(30), |
| 75 | REG_ONE(31), |
| 76 | REG_ONE(32), |
| 77 | REG_ONE(33), |
| 78 | REG_ONE(34), |
| 79 | REG_ONE(35), |
| 80 | REG_ONE(36), |
| 81 | REG_ONE(37), |
| 82 | REG_ONE(38), |
| 83 | REG_ONE(39), |
| 84 | |
| 85 | REG_ONE(40), |
| 86 | REG_ONE(41), |
| 87 | REG_ONE(42), |
| 88 | REG_ONE(43), |
| 89 | REG_ONE(44), |
| 90 | REG_ONE(45), |
| 91 | REG_ONE(46), |
| 92 | REG_ONE(47), |
| 93 | REG_ONE(48), |
| 94 | REG_ONE(49), |
| 95 | |
| 96 | REG_ONE(50), |
| 97 | REG_ONE(51), |
| 98 | REG_ONE(52), |
| 99 | REG_ONE(53), |
| 100 | |
| 101 | REG_ONE_NAME(54, "sp"), |
| 102 | REG_ONE_NAME(55, "lr"), |
| 103 | REG_ONE(56), |
| 104 | REG_ONE(57), |
| 105 | REG_ONE(58), |
| 106 | REG_ONE(59), |
| 107 | |
| 108 | REG_ONE(60), |
| 109 | REG_ONE(61), |
| 110 | REG_ONE(62), |
| 111 | REG_ONE_NAME(63, "zero"), |
| 112 | REG_ONE_NAME(64, "pc"), |
| 113 | }; |
| 114 | |
| 115 | #define num_regs (sizeof (regs) / sizeof (regs[0])) |
| 116 | |
| 117 | static const char *expedite_regs[] = { "sp", "pc", 0 }; |
| 118 | |
| 119 | static |
| 120 | CORE_ADDR get_pc (void) |
| 121 | { |
| 122 | unsigned long pc; |
| 123 | |
| 124 | collect_register_by_name ("pc", &pc); |
| 125 | |
| 126 | dlog(1, "stop pc is %p\n", (void *) pc); |
| 127 | return pc; |
| 128 | } |
| 129 | |
| 130 | static |
| 131 | void set_pc ( CORE_ADDR newpc ) |
| 132 | { |
| 133 | Bool mod; |
| 134 | supply_register_by_name ("pc", &newpc, &mod); |
| 135 | if (mod) |
| 136 | dlog(1, "set pc to %p\n", C2v (newpc)); |
| 137 | else |
| 138 | dlog(1, "set pc not changed %p\n", C2v (newpc)); |
| 139 | } |
| 140 | |
| 141 | /* store registers in the guest state (gdbserver_to_valgrind) |
| 142 | or fetch register from the guest state (valgrind_to_gdbserver). */ |
| 143 | static |
| 144 | void transfer_register ( ThreadId tid, int abs_regno, void * buf, |
| 145 | transfer_direction dir, int size, Bool *mod ) |
| 146 | { |
| 147 | ThreadState* tst = VG_(get_ThreadState)(tid); |
| 148 | int set = abs_regno / num_regs; |
| 149 | int regno = abs_regno % num_regs; |
| 150 | *mod = False; |
| 151 | |
| 152 | VexGuestTILEGXState* tilegx = (VexGuestTILEGXState*) get_arch (set, tst); |
| 153 | |
| 154 | switch (regno) { |
| 155 | case 0: VG_(transfer) (&tilegx->guest_r0, buf, dir, size, mod); break; |
| 156 | case 1: VG_(transfer) (&tilegx->guest_r1, buf, dir, size, mod); break; |
| 157 | case 2: VG_(transfer) (&tilegx->guest_r2, buf, dir, size, mod); break; |
| 158 | case 3: VG_(transfer) (&tilegx->guest_r3, buf, dir, size, mod); break; |
| 159 | case 4: VG_(transfer) (&tilegx->guest_r4, buf, dir, size, mod); break; |
| 160 | case 5: VG_(transfer) (&tilegx->guest_r5, buf, dir, size, mod); break; |
| 161 | case 6: VG_(transfer) (&tilegx->guest_r6, buf, dir, size, mod); break; |
| 162 | case 7: VG_(transfer) (&tilegx->guest_r7, buf, dir, size, mod); break; |
| 163 | case 8: VG_(transfer) (&tilegx->guest_r8, buf, dir, size, mod); break; |
| 164 | case 9: VG_(transfer) (&tilegx->guest_r9, buf, dir, size, mod); break; |
| 165 | case 10: VG_(transfer) (&tilegx->guest_r10, buf, dir, size, mod); break; |
| 166 | case 11: VG_(transfer) (&tilegx->guest_r11, buf, dir, size, mod); break; |
| 167 | case 12: VG_(transfer) (&tilegx->guest_r12, buf, dir, size, mod); break; |
| 168 | case 13: VG_(transfer) (&tilegx->guest_r13, buf, dir, size, mod); break; |
| 169 | case 14: VG_(transfer) (&tilegx->guest_r14, buf, dir, size, mod); break; |
| 170 | case 15: VG_(transfer) (&tilegx->guest_r15, buf, dir, size, mod); break; |
| 171 | case 16: VG_(transfer) (&tilegx->guest_r16, buf, dir, size, mod); break; |
| 172 | case 17: VG_(transfer) (&tilegx->guest_r17, buf, dir, size, mod); break; |
| 173 | case 18: VG_(transfer) (&tilegx->guest_r18, buf, dir, size, mod); break; |
| 174 | case 19: VG_(transfer) (&tilegx->guest_r19, buf, dir, size, mod); break; |
| 175 | case 20: VG_(transfer) (&tilegx->guest_r20, buf, dir, size, mod); break; |
| 176 | case 21: VG_(transfer) (&tilegx->guest_r21, buf, dir, size, mod); break; |
| 177 | case 22: VG_(transfer) (&tilegx->guest_r22, buf, dir, size, mod); break; |
| 178 | case 23: VG_(transfer) (&tilegx->guest_r23, buf, dir, size, mod); break; |
| 179 | case 24: VG_(transfer) (&tilegx->guest_r24, buf, dir, size, mod); break; |
| 180 | case 25: VG_(transfer) (&tilegx->guest_r25, buf, dir, size, mod); break; |
| 181 | case 26: VG_(transfer) (&tilegx->guest_r26, buf, dir, size, mod); break; |
| 182 | case 27: VG_(transfer) (&tilegx->guest_r27, buf, dir, size, mod); break; |
| 183 | case 28: VG_(transfer) (&tilegx->guest_r28, buf, dir, size, mod); break; |
| 184 | case 29: VG_(transfer) (&tilegx->guest_r29, buf, dir, size, mod); break; |
| 185 | case 30: VG_(transfer) (&tilegx->guest_r30, buf, dir, size, mod); break; |
| 186 | case 31: VG_(transfer) (&tilegx->guest_r31, buf, dir, size, mod); break; |
| 187 | case 32: VG_(transfer) (&tilegx->guest_r32, buf, dir, size, mod); break; |
| 188 | case 33: VG_(transfer) (&tilegx->guest_r33, buf, dir, size, mod); break; |
| 189 | case 34: VG_(transfer) (&tilegx->guest_r34, buf, dir, size, mod); break; |
| 190 | case 35: VG_(transfer) (&tilegx->guest_r35, buf, dir, size, mod); break; |
| 191 | case 36: VG_(transfer) (&tilegx->guest_r36, buf, dir, size, mod); break; |
| 192 | case 37: VG_(transfer) (&tilegx->guest_r37, buf, dir, size, mod); break; |
| 193 | case 38: VG_(transfer) (&tilegx->guest_r38, buf, dir, size, mod); break; |
| 194 | case 39: VG_(transfer) (&tilegx->guest_r39, buf, dir, size, mod); break; |
| 195 | case 40: VG_(transfer) (&tilegx->guest_r40, buf, dir, size, mod); break; |
| 196 | case 41: VG_(transfer) (&tilegx->guest_r41, buf, dir, size, mod); break; |
| 197 | case 42: VG_(transfer) (&tilegx->guest_r42, buf, dir, size, mod); break; |
| 198 | case 43: VG_(transfer) (&tilegx->guest_r43, buf, dir, size, mod); break; |
| 199 | case 44: VG_(transfer) (&tilegx->guest_r44, buf, dir, size, mod); break; |
| 200 | case 45: VG_(transfer) (&tilegx->guest_r45, buf, dir, size, mod); break; |
| 201 | case 46: VG_(transfer) (&tilegx->guest_r46, buf, dir, size, mod); break; |
| 202 | case 47: VG_(transfer) (&tilegx->guest_r47, buf, dir, size, mod); break; |
| 203 | case 48: VG_(transfer) (&tilegx->guest_r48, buf, dir, size, mod); break; |
| 204 | case 49: VG_(transfer) (&tilegx->guest_r49, buf, dir, size, mod); break; |
| 205 | case 50: VG_(transfer) (&tilegx->guest_r50, buf, dir, size, mod); break; |
| 206 | case 51: VG_(transfer) (&tilegx->guest_r51, buf, dir, size, mod); break; |
| 207 | case 52: VG_(transfer) (&tilegx->guest_r52, buf, dir, size, mod); break; |
| 208 | case 53: VG_(transfer) (&tilegx->guest_r53, buf, dir, size, mod); break; |
| 209 | case 54: VG_(transfer) (&tilegx->guest_r54, buf, dir, size, mod); break; |
| 210 | case 55: VG_(transfer) (&tilegx->guest_r55, buf, dir, size, mod); break; |
| 211 | case 56: VG_(transfer) (&tilegx->guest_r56, buf, dir, size, mod); break; |
| 212 | case 57: VG_(transfer) (&tilegx->guest_r57, buf, dir, size, mod); break; |
| 213 | case 58: VG_(transfer) (&tilegx->guest_r58, buf, dir, size, mod); break; |
| 214 | case 59: VG_(transfer) (&tilegx->guest_r59, buf, dir, size, mod); break; |
| 215 | case 60: VG_(transfer) (&tilegx->guest_r60, buf, dir, size, mod); break; |
| 216 | case 61: VG_(transfer) (&tilegx->guest_r61, buf, dir, size, mod); break; |
| 217 | case 62: VG_(transfer) (&tilegx->guest_r62, buf, dir, size, mod); break; |
| 218 | case 63: VG_(transfer) (&tilegx->guest_r63, buf, dir, size, mod); break; |
| 219 | case 64: VG_(transfer) (&tilegx->guest_pc, buf, dir, size, mod); break; |
| 220 | |
| 221 | default: VG_(printf)("regno: %d\n", regno); vg_assert(0); |
| 222 | } |
| 223 | } |
| 224 | |
| 225 | static |
| 226 | const char* target_xml ( Bool shadow_mode ) |
| 227 | { |
zliu | fff0723 | 2015-08-07 13:25:24 +0000 | [diff] [blame] | 228 | return NULL; |
| 229 | #if 0 |
| 230 | if (shadow_mode) |
sewardj | 112711a | 2015-04-10 12:30:09 +0000 | [diff] [blame] | 231 | return "tilegx-linux-valgrind.xml"; |
zliu | fff0723 | 2015-08-07 13:25:24 +0000 | [diff] [blame] | 232 | else |
sewardj | 112711a | 2015-04-10 12:30:09 +0000 | [diff] [blame] | 233 | return "tilegx-linux.xml"; |
zliu | fff0723 | 2015-08-07 13:25:24 +0000 | [diff] [blame] | 234 | #endif |
sewardj | 112711a | 2015-04-10 12:30:09 +0000 | [diff] [blame] | 235 | } |
| 236 | |
| 237 | static CORE_ADDR** target_get_dtv (ThreadState *tst) |
| 238 | { |
| 239 | VexGuestTILEGXState* tilegx = (VexGuestTILEGXState*)&tst->arch.vex; |
| 240 | // tilegx dtv location similar to mips |
| 241 | return (CORE_ADDR**)((CORE_ADDR)tilegx->guest_r53 |
| 242 | - 0x7000 - sizeof(CORE_ADDR)); |
| 243 | } |
| 244 | |
| 245 | static struct valgrind_target_ops low_target = { |
| 246 | num_regs, |
| 247 | regs, |
| 248 | 54, //sp = r54, which is register offset 54 in regs |
| 249 | transfer_register, |
| 250 | get_pc, |
| 251 | set_pc, |
| 252 | "tilegx", |
| 253 | target_xml, |
| 254 | target_get_dtv |
| 255 | }; |
| 256 | |
| 257 | void tilegx_init_architecture ( struct valgrind_target_ops *target ) |
| 258 | { |
| 259 | *target = low_target; |
| 260 | set_register_cache (regs, num_regs); |
| 261 | gdbserver_expedite_regs = expedite_regs; |
| 262 | } |