| /* Low level interface to valgrind, for the remote server for GDB integrated |
| in valgrind. |
| Copyright (C) 2012 |
| Free Software Foundation, Inc. |
| |
| This file is part of VALGRIND. |
| It has been inspired from a file from gdbserver in gdb 6.6. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, write to the Free Software |
| Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| Boston, MA 02110-1301, USA. */ |
| |
| #include "server.h" |
| #include "target.h" |
| #include "regdef.h" |
| #include "regcache.h" |
| |
| #include "pub_core_aspacemgr.h" |
| #include "pub_tool_machine.h" |
| #include "pub_core_threadstate.h" |
| #include "pub_core_transtab.h" |
| #include "pub_core_gdbserver.h" |
| |
| #include "valgrind_low.h" |
| |
| #include "libvex_guest_mips32.h" |
| |
| static struct reg regs[] = { |
| { "r0", 0, 32 }, |
| { "r1", 32, 32 }, |
| { "r2", 64, 32 }, |
| { "r3", 96, 32 }, |
| { "r4", 128, 32 }, |
| { "r5", 160, 32 }, |
| { "r6", 192, 32 }, |
| { "r7", 224, 32 }, |
| { "r8", 256, 32 }, |
| { "r9", 288, 32 }, |
| { "r10", 320, 32 }, |
| { "r11", 352, 32 }, |
| { "r12", 384, 32 }, |
| { "r13", 416, 32 }, |
| { "r14", 448, 32 }, |
| { "r15", 480, 32 }, |
| { "r16", 512, 32 }, |
| { "r17", 544, 32 }, |
| { "r18", 576, 32 }, |
| { "r19", 608, 32 }, |
| { "r20", 640, 32 }, |
| { "r21", 672, 32 }, |
| { "r22", 704, 32 }, |
| { "r23", 736, 32 }, |
| { "r24", 768, 32 }, |
| { "r25", 800, 32 }, |
| { "r26", 832, 32 }, |
| { "r27", 864, 32 }, |
| { "r28", 896, 32 }, |
| { "r29", 928, 32 }, |
| { "r30", 960, 32 }, |
| { "r31", 992, 32 }, |
| { "status", 1024, 32 }, |
| { "lo", 1056, 32 }, |
| { "hi", 1088, 32 }, |
| { "badvaddr", 1120, 32 }, |
| { "cause", 1152, 32 }, |
| { "pc", 1184, 32 }, |
| { "f0", 1216, 32 }, |
| { "f1", 1248, 32 }, |
| { "f2", 1280, 32 }, |
| { "f3", 1312, 32 }, |
| { "f4", 1344, 32 }, |
| { "f5", 1376, 32 }, |
| { "f6", 1408, 32 }, |
| { "f7", 1440, 32 }, |
| { "f8", 1472, 32 }, |
| { "f9", 1504, 32 }, |
| { "f10", 1536, 32 }, |
| { "f11", 1568, 32 }, |
| { "f12", 1600, 32 }, |
| { "f13", 1632, 32 }, |
| { "f14", 1664, 32 }, |
| { "f15", 1696, 32 }, |
| { "f16", 1728, 32 }, |
| { "f17", 1760, 32 }, |
| { "f18", 1792, 32 }, |
| { "f19", 1824, 32 }, |
| { "f20", 1856, 32 }, |
| { "f21", 1888, 32 }, |
| { "f22", 1920, 32 }, |
| { "f23", 1952, 32 }, |
| { "f24", 1984, 32 }, |
| { "f25", 2016, 32 }, |
| { "f26", 2048, 32 }, |
| { "f27", 2080, 32 }, |
| { "f28", 2112, 32 }, |
| { "f29", 2144, 32 }, |
| { "f30", 2176, 32 }, |
| { "f31", 2208, 32 }, |
| { "fcsr", 2240, 32 }, |
| { "fir", 2272, 32 }, |
| { "restart", 2304, 32 }, |
| }; |
| |
| #define num_regs (sizeof (regs) / sizeof (regs[0])) |
| |
| static const char *expedite_regs[] = { "r29", "pc", 0 }; |
| |
| static |
| CORE_ADDR get_pc (void) |
| { |
| unsigned long pc; |
| |
| collect_register_by_name ("pc", &pc); |
| |
| dlog(1, "stop pc is %p\n", (void *) pc); |
| return pc; |
| } |
| |
| static |
| void set_pc (CORE_ADDR newpc) |
| { |
| Bool mod; |
| supply_register_by_name ("pc", &newpc, &mod); |
| if (mod) |
| dlog(1, "set pc to %p\n", C2v (newpc)); |
| else |
| dlog(1, "set pc not changed %p\n", C2v (newpc)); |
| } |
| |
| /* store registers in the guest state (gdbserver_to_valgrind) |
| or fetch register from the guest state (valgrind_to_gdbserver). */ |
| static |
| void transfer_register (ThreadId tid, int abs_regno, void * buf, |
| transfer_direction dir, int size, Bool *mod) |
| { |
| ThreadState* tst = VG_(get_ThreadState)(tid); |
| int set = abs_regno / num_regs; |
| int regno = abs_regno % num_regs; |
| *mod = False; |
| |
| VexGuestMIPS32State* mips1 = (VexGuestMIPS32State*) get_arch (set, tst); |
| |
| switch (regno) { |
| case 0: VG_(transfer) (&mips1->guest_r0, buf, dir, size, mod); break; |
| case 1: VG_(transfer) (&mips1->guest_r1, buf, dir, size, mod); break; |
| case 2: VG_(transfer) (&mips1->guest_r2, buf, dir, size, mod); break; |
| case 3: VG_(transfer) (&mips1->guest_r3, buf, dir, size, mod); break; |
| case 4: VG_(transfer) (&mips1->guest_r4, buf, dir, size, mod); break; |
| case 5: VG_(transfer) (&mips1->guest_r5, buf, dir, size, mod); break; |
| case 6: VG_(transfer) (&mips1->guest_r6, buf, dir, size, mod); break; |
| case 7: VG_(transfer) (&mips1->guest_r7, buf, dir, size, mod); break; |
| case 8: VG_(transfer) (&mips1->guest_r8, buf, dir, size, mod); break; |
| case 9: VG_(transfer) (&mips1->guest_r9, buf, dir, size, mod); break; |
| case 10: VG_(transfer) (&mips1->guest_r10, buf, dir, size, mod); break; |
| case 11: VG_(transfer) (&mips1->guest_r11, buf, dir, size, mod); break; |
| case 12: VG_(transfer) (&mips1->guest_r12, buf, dir, size, mod); break; |
| case 13: VG_(transfer) (&mips1->guest_r13, buf, dir, size, mod); break; |
| case 14: VG_(transfer) (&mips1->guest_r14, buf, dir, size, mod); break; |
| case 15: VG_(transfer) (&mips1->guest_r15, buf, dir, size, mod); break; |
| case 16: VG_(transfer) (&mips1->guest_r16, buf, dir, size, mod); break; |
| case 17: VG_(transfer) (&mips1->guest_r17, buf, dir, size, mod); break; |
| case 18: VG_(transfer) (&mips1->guest_r18, buf, dir, size, mod); break; |
| case 19: VG_(transfer) (&mips1->guest_r19, buf, dir, size, mod); break; |
| case 20: VG_(transfer) (&mips1->guest_r20, buf, dir, size, mod); break; |
| case 21: VG_(transfer) (&mips1->guest_r21, buf, dir, size, mod); break; |
| case 22: VG_(transfer) (&mips1->guest_r22, buf, dir, size, mod); break; |
| case 23: VG_(transfer) (&mips1->guest_r23, buf, dir, size, mod); break; |
| case 24: VG_(transfer) (&mips1->guest_r24, buf, dir, size, mod); break; |
| case 25: VG_(transfer) (&mips1->guest_r25, buf, dir, size, mod); break; |
| case 26: VG_(transfer) (&mips1->guest_r26, buf, dir, size, mod); break; |
| case 27: VG_(transfer) (&mips1->guest_r27, buf, dir, size, mod); break; |
| case 28: VG_(transfer) (&mips1->guest_r28, buf, dir, size, mod); break; |
| case 29: VG_(transfer) (&mips1->guest_r29, buf, dir, size, mod); break; |
| case 30: VG_(transfer) (&mips1->guest_r30, buf, dir, size, mod); break; |
| case 31: VG_(transfer) (&mips1->guest_r31, buf, dir, size, mod); break; |
| case 32: *mod = False; break; // GDBTD???? VEX { "status", 1024, 32 }, |
| case 33: VG_(transfer) (&mips1->guest_LO, buf, dir, size, mod); break; |
| case 34: VG_(transfer) (&mips1->guest_HI, buf, dir, size, mod); break; |
| case 35: *mod = False; break; // GDBTD???? VEX { "badvaddr", 1120, 32 }, |
| case 36: *mod = False; break; // GDBTD???? VEX { "cause", 1152, 32 }, |
| case 37: VG_(transfer) (&mips1->guest_PC, buf, dir, size, mod); break; |
| case 38: VG_(transfer) (&mips1->guest_f0, buf, dir, size, mod); break; |
| case 39: VG_(transfer) (&mips1->guest_f1, buf, dir, size, mod); break; |
| case 40: VG_(transfer) (&mips1->guest_f2, buf, dir, size, mod); break; |
| case 41: VG_(transfer) (&mips1->guest_f3, buf, dir, size, mod); break; |
| case 42: VG_(transfer) (&mips1->guest_f4, buf, dir, size, mod); break; |
| case 43: VG_(transfer) (&mips1->guest_f5, buf, dir, size, mod); break; |
| case 44: VG_(transfer) (&mips1->guest_f6, buf, dir, size, mod); break; |
| case 45: VG_(transfer) (&mips1->guest_f7, buf, dir, size, mod); break; |
| case 46: VG_(transfer) (&mips1->guest_f8, buf, dir, size, mod); break; |
| case 47: VG_(transfer) (&mips1->guest_f9, buf, dir, size, mod); break; |
| case 48: VG_(transfer) (&mips1->guest_f10, buf, dir, size, mod); break; |
| case 49: VG_(transfer) (&mips1->guest_f11, buf, dir, size, mod); break; |
| case 50: VG_(transfer) (&mips1->guest_f12, buf, dir, size, mod); break; |
| case 51: VG_(transfer) (&mips1->guest_f13, buf, dir, size, mod); break; |
| case 52: VG_(transfer) (&mips1->guest_f14, buf, dir, size, mod); break; |
| case 53: VG_(transfer) (&mips1->guest_f15, buf, dir, size, mod); break; |
| case 54: VG_(transfer) (&mips1->guest_f16, buf, dir, size, mod); break; |
| case 55: VG_(transfer) (&mips1->guest_f17, buf, dir, size, mod); break; |
| case 56: VG_(transfer) (&mips1->guest_f18, buf, dir, size, mod); break; |
| case 57: VG_(transfer) (&mips1->guest_f19, buf, dir, size, mod); break; |
| case 58: VG_(transfer) (&mips1->guest_f20, buf, dir, size, mod); break; |
| case 59: VG_(transfer) (&mips1->guest_f21, buf, dir, size, mod); break; |
| case 60: VG_(transfer) (&mips1->guest_f22, buf, dir, size, mod); break; |
| case 61: VG_(transfer) (&mips1->guest_f23, buf, dir, size, mod); break; |
| case 62: VG_(transfer) (&mips1->guest_f24, buf, dir, size, mod); break; |
| case 63: VG_(transfer) (&mips1->guest_f25, buf, dir, size, mod); break; |
| case 64: VG_(transfer) (&mips1->guest_f26, buf, dir, size, mod); break; |
| case 65: VG_(transfer) (&mips1->guest_f27, buf, dir, size, mod); break; |
| case 66: VG_(transfer) (&mips1->guest_f28, buf, dir, size, mod); break; |
| case 67: VG_(transfer) (&mips1->guest_f29, buf, dir, size, mod); break; |
| case 68: VG_(transfer) (&mips1->guest_f30, buf, dir, size, mod); break; |
| case 69: VG_(transfer) (&mips1->guest_f31, buf, dir, size, mod); break; |
| case 70: VG_(transfer) (&mips1->guest_FCSR, buf, dir, size, mod); break; |
| case 71: VG_(transfer) (&mips1->guest_FIR, buf, dir, size, mod); break; |
| case 72: *mod = False; break; // GDBTD???? VEX{ "restart", 2304, 32 }, |
| default: VG_(printf)("regno: %d\n", regno); vg_assert(0); |
| } |
| } |
| |
| static |
| char* target_xml (Bool shadow_mode) |
| { |
| if (shadow_mode) { |
| return "mips-linux-valgrind.xml"; |
| } else { |
| return "mips-linux.xml"; |
| } |
| } |
| |
| static struct valgrind_target_ops low_target = { |
| num_regs, |
| regs, |
| 29, //sp = r29, which is register offset 29 in regs |
| transfer_register, |
| get_pc, |
| set_pc, |
| "mips", |
| target_xml |
| }; |
| |
| void mips32_init_architecture (struct valgrind_target_ops *target) |
| { |
| *target = low_target; |
| set_register_cache (regs, num_regs); |
| gdbserver_expedite_regs = expedite_regs; |
| } |