1 /* Definitions of interface to the "low" (arch specific) functions 2 needed for interfacing the Valgrind gdbserver with the Valgrind 3 guest. 4 5 Copyright (C) 2011 6 Free Software Foundation, Inc. 7 8 This file has been inspired from a file that is part of GDB. 9 It has been modified to integrate it in valgrind 10 11 This program is free software; you can redistribute it and/or modify 12 it under the terms of the GNU General Public License as published by 13 the Free Software Foundation; either version 2 of the License, or 14 (at your option) any later version. 15 16 This program is distributed in the hope that it will be useful, 17 but WITHOUT ANY WARRANTY; without even the implied warranty of 18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 19 GNU General Public License for more details. 20 21 You should have received a copy of the GNU General Public License 22 along with this program; if not, write to the Free Software 23 Foundation, Inc., 51 Franklin Street, Fifth Floor, 24 Boston, MA 02110-1301, USA. */ 25 26 #ifndef VALGRIND_LOW_H 27 #define VALGRIND_LOW_H 28 29 /* defines the characteristics of the "low" valgrind target architecture. 30 In other words, struct valgrind_target_ops defines the functions and 31 data which are specific to the architecture (x86 or amd64 or 32 ppc32 or ...). */ 33 struct valgrind_target_ops 34 { 35 int num_regs; 36 struct reg *reg_defs; 37 38 int stack_pointer_regno; 39 /* register number of the stack pointer register */ 40 41 /* transfer the register regno from/to valgrind (guest state) 42 to/from buf 43 according to transfer_direction. 44 *mod set to True if destination content is modified by the transfer 45 otherwise it is set to False. */ 46 void (*transfer_register) (ThreadId tid, int regno, void * buf, 47 transfer_direction dir, int size, Bool *mod); 48 49 50 CORE_ADDR (*get_pc) (void); 51 void (*set_pc) (CORE_ADDR newpc); 52 53 /* What string to report to GDB when it asks for the architecture, 54 or NULL not to answer. */ 55 const char *arch_string; 56 57 /* Description of the set of registers. 58 For some architectures (e.g. arm), it is mandatory 59 to give a description of the registers, otherwise 60 gdb does not understand the reply to the 'g' packet 61 (which is used to get the registers). */ 62 const char *target_xml; 63 64 /* Same as target_xml, but describes also the two shadow 65 registers set. 66 This is mandatory to use the option --vgdb-shadow-registers=yes. */ 67 const char *shadow_target_xml; 68 }; 69 70 71 /* convert from CORE_ADDR to void* */ 72 extern void* C2v(CORE_ADDR addr); 73 74 /* builds an image of bin according to byte order of the architecture 75 Useful for register and int image */ 76 extern char* heximage (char *buf, char *bin, int count); 77 78 /* returns a pointer to the architecture state corresponding to 79 the provided register set: 0 => normal guest registers, 80 1 => shadow1 81 2 => shadow2 */ 82 VexGuestArchState* get_arch (int set, ThreadState* tst); 83 84 extern void x86_init_architecture (struct valgrind_target_ops *target); 85 extern void amd64_init_architecture (struct valgrind_target_ops *target); 86 extern void arm_init_architecture (struct valgrind_target_ops *target); 87 extern void ppc32_init_architecture (struct valgrind_target_ops *target); 88 extern void ppc64_init_architecture (struct valgrind_target_ops *target); 89 extern void s390x_init_architecture (struct valgrind_target_ops *target); 90 91 #endif 92