1 /* Native-dependent code for Motorola 88000 BSD's. 2 3 Copyright 2004 Free Software Foundation, Inc. 4 5 This file is part of GDB. 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 2 of the License, or 10 (at your option) any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program; if not, write to the Free Software 19 Foundation, Inc., 59 Temple Place - Suite 330, 20 Boston, MA 02111-1307, USA. */ 21 22 #include "defs.h" 23 #include "inferior.h" 24 #include "regcache.h" 25 #include "target.h" 26 27 #include <sys/types.h> 28 #include <sys/ptrace.h> 29 #include <machine/reg.h> 30 31 #include "m88k-tdep.h" 32 #include "inf-ptrace.h" 33 34 /* Supply the general-purpose registers stored in GREGS to REGCACHE. */ 35 36 static void 37 m88kbsd_supply_gregset (struct regcache *regcache, const void *gregs) 38 { 39 const char *regs = gregs; 40 int regnum; 41 42 for (regnum = 0; regnum < M88K_NUM_REGS; regnum++) 43 regcache_raw_supply (regcache, regnum, regs + regnum * 4); 44 } 45 46 /* Collect the general-purpose registers from REGCACHE and store them 47 in GREGS. */ 48 49 static void 50 m88kbsd_collect_gregset (const struct regcache *regcache, 51 void *gregs, int regnum) 52 { 53 char *regs = gregs; 54 int i; 55 56 for (i = 0; i < M88K_NUM_REGS; i++) 57 { 58 if (regnum == -1 || regnum == i) 59 regcache_raw_collect (regcache, i, regs + i * 4); 60 } 61 } 62 63 64 /* Fetch register REGNUM from the inferior. If REGNUM is -1, do this 65 for all registers. */ 66 67 static void 68 m88kbsd_fetch_inferior_registers (int regnum) 69 { 70 struct reg regs; 71 72 if (ptrace (PT_GETREGS, PIDGET (inferior_ptid), 73 (PTRACE_TYPE_ARG3) ®s, 0) == -1) 74 perror_with_name ("Couldn't get registers"); 75 76 m88kbsd_supply_gregset (current_regcache, ®s); 77 } 78 79 /* Store register REGNUM back into the inferior. If REGNUM is -1, do 80 this for all registers. */ 81 82 static void 83 m88kbsd_store_inferior_registers (int regnum) 84 { 85 struct reg regs; 86 87 if (ptrace (PT_GETREGS, PIDGET (inferior_ptid), 88 (PTRACE_TYPE_ARG3) ®s, 0) == -1) 89 perror_with_name ("Couldn't get registers"); 90 91 m88kbsd_collect_gregset (current_regcache, ®s, regnum); 92 93 if (ptrace (PT_SETREGS, PIDGET (inferior_ptid), 94 (PTRACE_TYPE_ARG3) ®s, 0) == -1) 95 perror_with_name ("Couldn't write registers"); 96 } 97 98 99 /* Provide a prototype to silence -Wmissing-prototypes. */ 100 void _initialize_m88kbsd_nat (void); 101 102 void 103 _initialize_m88kbsd_nat (void) 104 { 105 struct target_ops *t; 106 107 t = inf_ptrace_target (); 108 t->to_fetch_registers = m88kbsd_fetch_inferior_registers; 109 t->to_store_registers = m88kbsd_store_inferior_registers; 110 add_target (t); 111 } 112