| /* Low level interface to valgrind, for the remote server for GDB integrated |
| in valgrind. |
| Copyright (C) 2011 |
| 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_ppc32.h" |
| |
| /* this is only the basic set of registers. |
| Need to look at what is the exact ppc32 model to support. |
| */ |
| 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 }, |
| { "f0", 1024, 64 }, |
| { "f1", 1088, 64 }, |
| { "f2", 1152, 64 }, |
| { "f3", 1216, 64 }, |
| { "f4", 1280, 64 }, |
| { "f5", 1344, 64 }, |
| { "f6", 1408, 64 }, |
| { "f7", 1472, 64 }, |
| { "f8", 1536, 64 }, |
| { "f9", 1600, 64 }, |
| { "f10", 1664, 64 }, |
| { "f11", 1728, 64 }, |
| { "f12", 1792, 64 }, |
| { "f13", 1856, 64 }, |
| { "f14", 1920, 64 }, |
| { "f15", 1984, 64 }, |
| { "f16", 2048, 64 }, |
| { "f17", 2112, 64 }, |
| { "f18", 2176, 64 }, |
| { "f19", 2240, 64 }, |
| { "f20", 2304, 64 }, |
| { "f21", 2368, 64 }, |
| { "f22", 2432, 64 }, |
| { "f23", 2496, 64 }, |
| { "f24", 2560, 64 }, |
| { "f25", 2624, 64 }, |
| { "f26", 2688, 64 }, |
| { "f27", 2752, 64 }, |
| { "f28", 2816, 64 }, |
| { "f29", 2880, 64 }, |
| { "f30", 2944, 64 }, |
| { "f31", 3008, 64 }, |
| { "pc", 3072, 32 }, |
| { "msr", 3104, 32 }, |
| { "cr", 3136, 32 }, |
| { "lr", 3168, 32 }, |
| { "ctr", 3200, 32 }, |
| { "xer", 3232, 32 }, |
| { "fpscr", 3264, 32 }, |
| { "orig_r3", 3296, 32 }, |
| { "trap", 3328, 32 }, |
| { "vr0", 3360, 128 }, |
| { "vr1", 3488, 128 }, |
| { "vr2", 3616, 128 }, |
| { "vr3", 3744, 128 }, |
| { "vr4", 3872, 128 }, |
| { "vr5", 4000, 128 }, |
| { "vr6", 4128, 128 }, |
| { "vr7", 4256, 128 }, |
| { "vr8", 4384, 128 }, |
| { "vr9", 4512, 128 }, |
| { "vr10", 4640, 128 }, |
| { "vr11", 4768, 128 }, |
| { "vr12", 4896, 128 }, |
| { "vr13", 5024, 128 }, |
| { "vr14", 5152, 128 }, |
| { "vr15", 5280, 128 }, |
| { "vr16", 5408, 128 }, |
| { "vr17", 5536, 128 }, |
| { "vr18", 5664, 128 }, |
| { "vr19", 5792, 128 }, |
| { "vr20", 5920, 128 }, |
| { "vr21", 6048, 128 }, |
| { "vr22", 6176, 128 }, |
| { "vr23", 6304, 128 }, |
| { "vr24", 6432, 128 }, |
| { "vr25", 6560, 128 }, |
| { "vr26", 6688, 128 }, |
| { "vr27", 6816, 128 }, |
| { "vr28", 6944, 128 }, |
| { "vr29", 7072, 128 }, |
| { "vr30", 7200, 128 }, |
| { "vr31", 7328, 128 }, |
| { "vscr", 7456, 32 }, |
| { "vrsave", 7488, 32 } |
| }; |
| static const char *expedite_regs[] = { "r1", "pc", 0 }; |
| #define num_regs (sizeof (regs) / sizeof (regs[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; |
| |
| VexGuestPPC32State* ppc32 = (VexGuestPPC32State*) get_arch (set, tst); |
| |
| switch (regno) { |
| // numbers here have to match the order of regs above |
| // Attention: gdb order does not match valgrind order. |
| case 0: VG_(transfer) (&ppc32->guest_GPR0, buf, dir, size, mod); break; |
| case 1: VG_(transfer) (&ppc32->guest_GPR1, buf, dir, size, mod); break; |
| case 2: VG_(transfer) (&ppc32->guest_GPR2, buf, dir, size, mod); break; |
| case 3: VG_(transfer) (&ppc32->guest_GPR3, buf, dir, size, mod); break; |
| case 4: VG_(transfer) (&ppc32->guest_GPR4, buf, dir, size, mod); break; |
| case 5: VG_(transfer) (&ppc32->guest_GPR5, buf, dir, size, mod); break; |
| case 6: VG_(transfer) (&ppc32->guest_GPR6, buf, dir, size, mod); break; |
| case 7: VG_(transfer) (&ppc32->guest_GPR7, buf, dir, size, mod); break; |
| case 8: VG_(transfer) (&ppc32->guest_GPR8, buf, dir, size, mod); break; |
| case 9: VG_(transfer) (&ppc32->guest_GPR9, buf, dir, size, mod); break; |
| case 10: VG_(transfer) (&ppc32->guest_GPR10, buf, dir, size, mod); break; |
| case 11: VG_(transfer) (&ppc32->guest_GPR11, buf, dir, size, mod); break; |
| case 12: VG_(transfer) (&ppc32->guest_GPR12, buf, dir, size, mod); break; |
| case 13: VG_(transfer) (&ppc32->guest_GPR13, buf, dir, size, mod); break; |
| case 14: VG_(transfer) (&ppc32->guest_GPR14, buf, dir, size, mod); break; |
| case 15: VG_(transfer) (&ppc32->guest_GPR15, buf, dir, size, mod); break; |
| case 16: VG_(transfer) (&ppc32->guest_GPR16, buf, dir, size, mod); break; |
| case 17: VG_(transfer) (&ppc32->guest_GPR17, buf, dir, size, mod); break; |
| case 18: VG_(transfer) (&ppc32->guest_GPR18, buf, dir, size, mod); break; |
| case 19: VG_(transfer) (&ppc32->guest_GPR19, buf, dir, size, mod); break; |
| case 20: VG_(transfer) (&ppc32->guest_GPR20, buf, dir, size, mod); break; |
| case 21: VG_(transfer) (&ppc32->guest_GPR21, buf, dir, size, mod); break; |
| case 22: VG_(transfer) (&ppc32->guest_GPR22, buf, dir, size, mod); break; |
| case 23: VG_(transfer) (&ppc32->guest_GPR23, buf, dir, size, mod); break; |
| case 24: VG_(transfer) (&ppc32->guest_GPR24, buf, dir, size, mod); break; |
| case 25: VG_(transfer) (&ppc32->guest_GPR25, buf, dir, size, mod); break; |
| case 26: VG_(transfer) (&ppc32->guest_GPR26, buf, dir, size, mod); break; |
| case 27: VG_(transfer) (&ppc32->guest_GPR27, buf, dir, size, mod); break; |
| case 28: VG_(transfer) (&ppc32->guest_GPR28, buf, dir, size, mod); break; |
| case 29: VG_(transfer) (&ppc32->guest_GPR29, buf, dir, size, mod); break; |
| case 30: VG_(transfer) (&ppc32->guest_GPR30, buf, dir, size, mod); break; |
| case 31: VG_(transfer) (&ppc32->guest_GPR31, buf, dir, size, mod); break; |
| case 32: VG_(transfer) (&ppc32->guest_VSR0, buf, dir, size, mod); break; |
| case 33: VG_(transfer) (&ppc32->guest_VSR1, buf, dir, size, mod); break; |
| case 34: VG_(transfer) (&ppc32->guest_VSR2, buf, dir, size, mod); break; |
| case 35: VG_(transfer) (&ppc32->guest_VSR3, buf, dir, size, mod); break; |
| case 36: VG_(transfer) (&ppc32->guest_VSR4, buf, dir, size, mod); break; |
| case 37: VG_(transfer) (&ppc32->guest_VSR5, buf, dir, size, mod); break; |
| case 38: VG_(transfer) (&ppc32->guest_VSR6, buf, dir, size, mod); break; |
| case 39: VG_(transfer) (&ppc32->guest_VSR7, buf, dir, size, mod); break; |
| case 40: VG_(transfer) (&ppc32->guest_VSR8, buf, dir, size, mod); break; |
| case 41: VG_(transfer) (&ppc32->guest_VSR9, buf, dir, size, mod); break; |
| case 42: VG_(transfer) (&ppc32->guest_VSR10, buf, dir, size, mod); break; |
| case 43: VG_(transfer) (&ppc32->guest_VSR11, buf, dir, size, mod); break; |
| case 44: VG_(transfer) (&ppc32->guest_VSR12, buf, dir, size, mod); break; |
| case 45: VG_(transfer) (&ppc32->guest_VSR13, buf, dir, size, mod); break; |
| case 46: VG_(transfer) (&ppc32->guest_VSR14, buf, dir, size, mod); break; |
| case 47: VG_(transfer) (&ppc32->guest_VSR15, buf, dir, size, mod); break; |
| case 48: VG_(transfer) (&ppc32->guest_VSR16, buf, dir, size, mod); break; |
| case 49: VG_(transfer) (&ppc32->guest_VSR17, buf, dir, size, mod); break; |
| case 50: VG_(transfer) (&ppc32->guest_VSR18, buf, dir, size, mod); break; |
| case 51: VG_(transfer) (&ppc32->guest_VSR19, buf, dir, size, mod); break; |
| case 52: VG_(transfer) (&ppc32->guest_VSR20, buf, dir, size, mod); break; |
| case 53: VG_(transfer) (&ppc32->guest_VSR21, buf, dir, size, mod); break; |
| case 54: VG_(transfer) (&ppc32->guest_VSR22, buf, dir, size, mod); break; |
| case 55: VG_(transfer) (&ppc32->guest_VSR23, buf, dir, size, mod); break; |
| case 56: VG_(transfer) (&ppc32->guest_VSR24, buf, dir, size, mod); break; |
| case 57: VG_(transfer) (&ppc32->guest_VSR25, buf, dir, size, mod); break; |
| case 58: VG_(transfer) (&ppc32->guest_VSR26, buf, dir, size, mod); break; |
| case 59: VG_(transfer) (&ppc32->guest_VSR27, buf, dir, size, mod); break; |
| case 60: VG_(transfer) (&ppc32->guest_VSR28, buf, dir, size, mod); break; |
| case 61: VG_(transfer) (&ppc32->guest_VSR29, buf, dir, size, mod); break; |
| case 62: VG_(transfer) (&ppc32->guest_VSR30, buf, dir, size, mod); break; |
| case 63: VG_(transfer) (&ppc32->guest_VSR31, buf, dir, size, mod); break; |
| case 64: VG_(transfer) (&ppc32->guest_CIA, buf, dir, size, mod); break; |
| case 65: *mod = False; break; // VEX does not model Machine State Register |
| case 66: { |
| UInt cr = LibVEX_GuestPPC32_get_CR (ppc32); |
| if (dir == valgrind_to_gdbserver) { |
| VG_(transfer) (&cr, buf, dir, size, mod); |
| } else { |
| UInt newcr; |
| VG_(transfer) (&newcr, buf, dir, size, mod); |
| *mod = newcr != cr; |
| LibVEX_GuestPPC32_put_CR (newcr, ppc32); |
| } |
| break; |
| } |
| case 67: VG_(transfer) (&ppc32->guest_LR, buf, dir, size, mod); break; |
| case 68: VG_(transfer) (&ppc32->guest_CTR, buf, dir, size, mod); break; |
| case 69: { |
| UInt xer = LibVEX_GuestPPC32_get_XER (ppc32); |
| if (dir == valgrind_to_gdbserver) { |
| VG_(transfer) (&xer, buf, dir, size, mod); |
| } else { |
| UInt newxer; |
| VG_(transfer) (&newxer, buf, dir, size, mod); |
| *mod = newxer != xer; |
| LibVEX_GuestPPC32_put_XER (newxer, ppc32); |
| } |
| break; |
| } |
| case 70: VG_(transfer) (&ppc32->guest_FPROUND, buf, dir, size, mod); break; |
| case 71: *mod = False; break; // GDBTD???? VEX { "orig_r3", 3296, 32 }, |
| case 72: *mod = False; break; // GDBTD???? VEX { "trap", 3328, 32 }, |
| case 73: VG_(transfer) (&ppc32->guest_VSR32, buf, dir, size, mod); break; |
| case 74: VG_(transfer) (&ppc32->guest_VSR33, buf, dir, size, mod); break; |
| case 75: VG_(transfer) (&ppc32->guest_VSR34, buf, dir, size, mod); break; |
| case 76: VG_(transfer) (&ppc32->guest_VSR35, buf, dir, size, mod); break; |
| case 77: VG_(transfer) (&ppc32->guest_VSR36, buf, dir, size, mod); break; |
| case 78: VG_(transfer) (&ppc32->guest_VSR37, buf, dir, size, mod); break; |
| case 79: VG_(transfer) (&ppc32->guest_VSR38, buf, dir, size, mod); break; |
| case 80: VG_(transfer) (&ppc32->guest_VSR39, buf, dir, size, mod); break; |
| case 81: VG_(transfer) (&ppc32->guest_VSR40, buf, dir, size, mod); break; |
| case 82: VG_(transfer) (&ppc32->guest_VSR41, buf, dir, size, mod); break; |
| case 83: VG_(transfer) (&ppc32->guest_VSR42, buf, dir, size, mod); break; |
| case 84: VG_(transfer) (&ppc32->guest_VSR43, buf, dir, size, mod); break; |
| case 85: VG_(transfer) (&ppc32->guest_VSR44, buf, dir, size, mod); break; |
| case 86: VG_(transfer) (&ppc32->guest_VSR45, buf, dir, size, mod); break; |
| case 87: VG_(transfer) (&ppc32->guest_VSR46, buf, dir, size, mod); break; |
| case 88: VG_(transfer) (&ppc32->guest_VSR47, buf, dir, size, mod); break; |
| case 89: VG_(transfer) (&ppc32->guest_VSR48, buf, dir, size, mod); break; |
| case 90: VG_(transfer) (&ppc32->guest_VSR49, buf, dir, size, mod); break; |
| case 91: VG_(transfer) (&ppc32->guest_VSR50, buf, dir, size, mod); break; |
| case 92: VG_(transfer) (&ppc32->guest_VSR51, buf, dir, size, mod); break; |
| case 93: VG_(transfer) (&ppc32->guest_VSR52, buf, dir, size, mod); break; |
| case 94: VG_(transfer) (&ppc32->guest_VSR53, buf, dir, size, mod); break; |
| case 95: VG_(transfer) (&ppc32->guest_VSR54, buf, dir, size, mod); break; |
| case 96: VG_(transfer) (&ppc32->guest_VSR55, buf, dir, size, mod); break; |
| case 97: VG_(transfer) (&ppc32->guest_VSR56, buf, dir, size, mod); break; |
| case 98: VG_(transfer) (&ppc32->guest_VSR57, buf, dir, size, mod); break; |
| case 99: VG_(transfer) (&ppc32->guest_VSR58, buf, dir, size, mod); break; |
| case 100: VG_(transfer) (&ppc32->guest_VSR59, buf, dir, size, mod); break; |
| case 101: VG_(transfer) (&ppc32->guest_VSR60, buf, dir, size, mod); break; |
| case 102: VG_(transfer) (&ppc32->guest_VSR61, buf, dir, size, mod); break; |
| case 103: VG_(transfer) (&ppc32->guest_VSR62, buf, dir, size, mod); break; |
| case 104: VG_(transfer) (&ppc32->guest_VSR63, buf, dir, size, mod); break; |
| case 105: VG_(transfer) (&ppc32->guest_VSCR, buf, dir, size, mod); break; |
| case 106: VG_(transfer) (&ppc32->guest_VRSAVE, buf, dir, size, mod); break; |
| default: vg_assert(0); |
| } |
| } |
| |
| static |
| char* target_xml (Bool shadow_mode) |
| { |
| if (shadow_mode) { |
| return "powerpc-altivec32l-valgrind.xml"; |
| } else { |
| return "powerpc-altivec32l.xml"; |
| } |
| } |
| |
| static struct valgrind_target_ops low_target = { |
| num_regs, |
| regs, |
| 1, //r1 |
| transfer_register, |
| get_pc, |
| set_pc, |
| "ppc32", |
| target_xml |
| }; |
| |
| void ppc32_init_architecture (struct valgrind_target_ops *target) |
| { |
| *target = low_target; |
| set_register_cache (regs, num_regs); |
| gdbserver_expedite_regs = expedite_regs; |
| } |
| |