1/* CPU support. 2 Copyright (C) 1998, 2007 Free Software Foundation, Inc. 3 Contributed by Cygnus Solutions. 4 5This file is part of GDB, the GNU debugger. 6 7This program is free software; you can redistribute it and/or modify 8it under the terms of the GNU General Public License as published by 9the Free Software Foundation; either version 3 of the License, or 10(at your option) any later version. 11 12This program is distributed in the hope that it will be useful, 13but WITHOUT ANY WARRANTY; without even the implied warranty of 14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15GNU General Public License for more details. 16 17You should have received a copy of the GNU General Public License 18along 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 28SIM_RC 29sim_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 41sim_cpu * 42sim_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 49void 50sim_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 61void 62sim_cpu_free (sim_cpu *cpu) 63{ 64 zfree (cpu); 65} 66 67/* PC utilities. */ 68 69sim_cia 70sim_pc_get (sim_cpu *cpu) 71{ 72 return (* CPU_PC_FETCH (cpu)) (cpu); 73} 74 75void 76sim_pc_set (sim_cpu *cpu, sim_cia newval) 77{ 78 (* CPU_PC_STORE (cpu)) (cpu, newval); 79} 80