1 /* CPU support. 2 Copyright (C) 1998-2015 Free Software Foundation, Inc. 3 Contributed by Cygnus Solutions. 4 5 This file is part of GDB, the GNU debugger. 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 3 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, see <http://www.gnu.org/licenses/>. */ 19 20 #include "sim-main.h" 21 #include "bfd.h" 22 23 /* Allocate space for all cpus in the simulator. 24 Space for the cpu must currently exist prior to parsing ARGV. 25 EXTRA_BYTES is additional space to allocate for the sim_cpu struct. */ 26 /* ??? wip. better solution must wait. */ 27 28 SIM_RC 29 sim_cpu_alloc_all (SIM_DESC sd, int ncpus, int extra_bytes) 30 { 31 int c; 32 33 for (c = 0; c < ncpus; ++c) 34 STATE_CPU (sd, c) = sim_cpu_alloc (sd, extra_bytes); 35 return SIM_RC_OK; 36 } 37 38 /* Allocate space for a cpu object. 39 EXTRA_BYTES is additional space to allocate for the sim_cpu struct. */ 40 41 sim_cpu * 42 sim_cpu_alloc (SIM_DESC sd, int extra_bytes) 43 { 44 return zalloc (sizeof (sim_cpu) + extra_bytes); 45 } 46 47 /* Free all resources held by all cpus. */ 48 49 void 50 sim_cpu_free_all (SIM_DESC sd) 51 { 52 int c; 53 54 for (c = 0; c < MAX_NR_PROCESSORS; ++c) 55 if (STATE_CPU (sd, c)) 56 sim_cpu_free (STATE_CPU (sd, c)); 57 } 58 59 /* Free all resources used by CPU. */ 60 61 void 62 sim_cpu_free (sim_cpu *cpu) 63 { 64 free (cpu); 65 } 66 67 /* PC utilities. */ 68 69 sim_cia 70 sim_pc_get (sim_cpu *cpu) 71 { 72 return (* CPU_PC_FETCH (cpu)) (cpu); 73 } 74 75 void 76 sim_pc_set (sim_cpu *cpu, sim_cia newval) 77 { 78 (* CPU_PC_STORE (cpu)) (cpu, newval); 79 } 80