sewardj | 3b29048 | 2011-05-06 21:02:55 +0000 | [diff] [blame] | 1 | /* Low level interface to valgrind, for the remote server for GDB integrated |
| 2 | in valgrind. |
| 3 | Copyright (C) 2011 |
| 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_tool_machine.h" |
| 31 | #include "pub_core_threadstate.h" |
| 32 | #include "pub_core_transtab.h" |
| 33 | #include "pub_core_gdbserver.h" |
| 34 | |
| 35 | #include "valgrind_low.h" |
| 36 | |
| 37 | #include "libvex_guest_s390x.h" |
| 38 | |
| 39 | struct reg regs[] = { |
| 40 | { "pswm", 0, 64 }, |
| 41 | { "pswa", 64, 64 }, |
| 42 | { "r0", 128, 64 }, |
| 43 | { "r1", 192, 64 }, |
| 44 | { "r2", 256, 64 }, |
| 45 | { "r3", 320, 64 }, |
| 46 | { "r4", 384, 64 }, |
| 47 | { "r5", 448, 64 }, |
| 48 | { "r6", 512, 64 }, |
| 49 | { "r7", 576, 64 }, |
| 50 | { "r8", 640, 64 }, |
| 51 | { "r9", 704, 64 }, |
| 52 | { "r10", 768, 64 }, |
| 53 | { "r11", 832, 64 }, |
| 54 | { "r12", 896, 64 }, |
| 55 | { "r13", 960, 64 }, |
| 56 | { "r14", 1024, 64 }, |
| 57 | { "r15", 1088, 64 }, |
| 58 | { "acr0", 1152, 32 }, |
| 59 | { "acr1", 1184, 32 }, |
| 60 | { "acr2", 1216, 32 }, |
| 61 | { "acr3", 1248, 32 }, |
| 62 | { "acr4", 1280, 32 }, |
| 63 | { "acr5", 1312, 32 }, |
| 64 | { "acr6", 1344, 32 }, |
| 65 | { "acr7", 1376, 32 }, |
| 66 | { "acr8", 1408, 32 }, |
| 67 | { "acr9", 1440, 32 }, |
| 68 | { "acr10", 1472, 32 }, |
| 69 | { "acr11", 1504, 32 }, |
| 70 | { "acr12", 1536, 32 }, |
| 71 | { "acr13", 1568, 32 }, |
| 72 | { "acr14", 1600, 32 }, |
| 73 | { "acr15", 1632, 32 }, |
| 74 | { "fpc", 1664, 32 }, |
| 75 | { "f0", 1696, 64 }, |
| 76 | { "f1", 1760, 64 }, |
| 77 | { "f2", 1824, 64 }, |
| 78 | { "f3", 1888, 64 }, |
| 79 | { "f4", 1952, 64 }, |
| 80 | { "f5", 2016, 64 }, |
| 81 | { "f6", 2080, 64 }, |
| 82 | { "f7", 2144, 64 }, |
| 83 | { "f8", 2208, 64 }, |
| 84 | { "f9", 2272, 64 }, |
| 85 | { "f10", 2336, 64 }, |
| 86 | { "f11", 2400, 64 }, |
| 87 | { "f12", 2464, 64 }, |
| 88 | { "f13", 2528, 64 }, |
| 89 | { "f14", 2592, 64 }, |
| 90 | { "f15", 2656, 64 }, |
| 91 | }; |
| 92 | static const char *expedite_regs[] = { "r14", "r15", "pswa", 0 }; |
| 93 | #define num_regs (sizeof (regs) / sizeof (regs[0])) |
| 94 | |
| 95 | static |
| 96 | CORE_ADDR get_pc (void) |
| 97 | { |
| 98 | unsigned long pc; |
| 99 | |
| 100 | collect_register_by_name ("pswa", &pc); |
| 101 | |
| 102 | dlog(1, "stop pc is %p\n", (void *) pc); |
| 103 | return pc; |
| 104 | } |
| 105 | |
| 106 | static |
| 107 | void set_pc (CORE_ADDR newpc) |
| 108 | { |
| 109 | Bool mod; |
| 110 | supply_register_by_name ("pswa", &newpc, &mod); |
| 111 | if (mod) |
| 112 | dlog(1, "set pc to %p\n", C2v (newpc)); |
| 113 | else |
| 114 | dlog(1, "set pc not changed %p\n", C2v (newpc)); |
| 115 | } |
| 116 | |
| 117 | /* store registers in the guest state (gdbserver_to_valgrind) |
| 118 | or fetch register from the guest state (valgrind_to_gdbserver). */ |
| 119 | static |
| 120 | void transfer_register (ThreadId tid, int abs_regno, void * buf, |
| 121 | transfer_direction dir, int size, Bool *mod) |
| 122 | { |
| 123 | ThreadState* tst = VG_(get_ThreadState)(tid); |
| 124 | int set = abs_regno / num_regs; |
| 125 | int regno = abs_regno % num_regs; |
| 126 | *mod = False; |
| 127 | |
| 128 | VexGuestS390XState* s390x = (VexGuestS390XState*) get_arch (set, tst); |
| 129 | |
| 130 | switch (regno) { |
| 131 | // numbers here have to match the order of regs above |
| 132 | // Attention: gdb order does not match valgrind order. |
sewardj | d8c12f1 | 2011-05-11 22:54:57 +0000 | [diff] [blame] | 133 | case 0: *mod = False; break; //GDBTD??? { "pswm", 0, 64 }, |
sewardj | 3b29048 | 2011-05-06 21:02:55 +0000 | [diff] [blame] | 134 | case 1: VG_(transfer) (&s390x->guest_IA, buf, dir, size, mod); break; |
| 135 | case 2: VG_(transfer) (&s390x->guest_r0, buf, dir, size, mod); break; |
| 136 | case 3: VG_(transfer) (&s390x->guest_r1, buf, dir, size, mod); break; |
| 137 | case 4: VG_(transfer) (&s390x->guest_r2, buf, dir, size, mod); break; |
| 138 | case 5: VG_(transfer) (&s390x->guest_r3, buf, dir, size, mod); break; |
| 139 | case 6: VG_(transfer) (&s390x->guest_r4, buf, dir, size, mod); break; |
| 140 | case 7: VG_(transfer) (&s390x->guest_r5, buf, dir, size, mod); break; |
| 141 | case 8: VG_(transfer) (&s390x->guest_r6, buf, dir, size, mod); break; |
| 142 | case 9: VG_(transfer) (&s390x->guest_r7, buf, dir, size, mod); break; |
| 143 | case 10: VG_(transfer) (&s390x->guest_r8, buf, dir, size, mod); break; |
| 144 | case 11: VG_(transfer) (&s390x->guest_r9, buf, dir, size, mod); break; |
| 145 | case 12: VG_(transfer) (&s390x->guest_r10, buf, dir, size, mod); break; |
| 146 | case 13: VG_(transfer) (&s390x->guest_r11, buf, dir, size, mod); break; |
| 147 | case 14: VG_(transfer) (&s390x->guest_r12, buf, dir, size, mod); break; |
| 148 | case 15: VG_(transfer) (&s390x->guest_r13, buf, dir, size, mod); break; |
| 149 | case 16: VG_(transfer) (&s390x->guest_r14, buf, dir, size, mod); break; |
| 150 | case 17: VG_(transfer) (&s390x->guest_r15, buf, dir, size, mod); break; |
| 151 | case 18: VG_(transfer) (&s390x->guest_a0, buf, dir, size, mod); break; |
| 152 | case 19: VG_(transfer) (&s390x->guest_a1, buf, dir, size, mod); break; |
| 153 | case 20: VG_(transfer) (&s390x->guest_a2, buf, dir, size, mod); break; |
| 154 | case 21: VG_(transfer) (&s390x->guest_a3, buf, dir, size, mod); break; |
| 155 | case 22: VG_(transfer) (&s390x->guest_a4, buf, dir, size, mod); break; |
| 156 | case 23: VG_(transfer) (&s390x->guest_a5, buf, dir, size, mod); break; |
| 157 | case 24: VG_(transfer) (&s390x->guest_a6, buf, dir, size, mod); break; |
| 158 | case 25: VG_(transfer) (&s390x->guest_a7, buf, dir, size, mod); break; |
| 159 | case 26: VG_(transfer) (&s390x->guest_a8, buf, dir, size, mod); break; |
| 160 | case 27: VG_(transfer) (&s390x->guest_a9, buf, dir, size, mod); break; |
| 161 | case 28: VG_(transfer) (&s390x->guest_a10, buf, dir, size, mod); break; |
| 162 | case 29: VG_(transfer) (&s390x->guest_a11, buf, dir, size, mod); break; |
| 163 | case 30: VG_(transfer) (&s390x->guest_a12, buf, dir, size, mod); break; |
| 164 | case 31: VG_(transfer) (&s390x->guest_a13, buf, dir, size, mod); break; |
| 165 | case 32: VG_(transfer) (&s390x->guest_a14, buf, dir, size, mod); break; |
| 166 | case 33: VG_(transfer) (&s390x->guest_a15, buf, dir, size, mod); break; |
| 167 | case 34: VG_(transfer) (&s390x->guest_fpc, buf, dir, size, mod); break; |
| 168 | case 35: VG_(transfer) (&s390x->guest_f0, buf, dir, size, mod); break; |
| 169 | case 36: VG_(transfer) (&s390x->guest_f1, buf, dir, size, mod); break; |
| 170 | case 37: VG_(transfer) (&s390x->guest_f2, buf, dir, size, mod); break; |
| 171 | case 38: VG_(transfer) (&s390x->guest_f3, buf, dir, size, mod); break; |
| 172 | case 39: VG_(transfer) (&s390x->guest_f4, buf, dir, size, mod); break; |
| 173 | case 40: VG_(transfer) (&s390x->guest_f5, buf, dir, size, mod); break; |
| 174 | case 41: VG_(transfer) (&s390x->guest_f6, buf, dir, size, mod); break; |
| 175 | case 42: VG_(transfer) (&s390x->guest_f7, buf, dir, size, mod); break; |
| 176 | case 43: VG_(transfer) (&s390x->guest_f8, buf, dir, size, mod); break; |
| 177 | case 44: VG_(transfer) (&s390x->guest_f9, buf, dir, size, mod); break; |
| 178 | case 45: VG_(transfer) (&s390x->guest_f10, buf, dir, size, mod); break; |
| 179 | case 46: VG_(transfer) (&s390x->guest_f11, buf, dir, size, mod); break; |
| 180 | case 47: VG_(transfer) (&s390x->guest_f12, buf, dir, size, mod); break; |
| 181 | case 48: VG_(transfer) (&s390x->guest_f13, buf, dir, size, mod); break; |
| 182 | case 49: VG_(transfer) (&s390x->guest_f14, buf, dir, size, mod); break; |
| 183 | case 50: VG_(transfer) (&s390x->guest_f15, buf, dir, size, mod); break; |
| 184 | default: vg_assert(0); |
| 185 | } |
| 186 | } |
| 187 | |
| 188 | static struct valgrind_target_ops low_target = { |
| 189 | num_regs, |
| 190 | regs, |
| 191 | 17, //sp = r15, which is register offset 17 in regs |
| 192 | transfer_register, |
| 193 | get_pc, |
| 194 | set_pc, |
| 195 | "s390x", |
| 196 | NULL, // target_xml not needed. |
| 197 | NULL // no xml shadow target description (yet?) |
| 198 | }; |
| 199 | |
| 200 | void s390x_init_architecture (struct valgrind_target_ops *target) |
| 201 | { |
| 202 | *target = low_target; |
| 203 | set_register_cache (regs, num_regs); |
| 204 | gdbserver_expedite_regs = expedite_regs; |
| 205 | } |