1 /* CPU support. 2 Copyright (C) 1998-2020 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 <stdlib.h> 21 22 #include "sim-main.h" 23 #include "bfd.h" 24 25 /* Allocate space for all cpus in the simulator. 26 Space for the cpu must currently exist prior to parsing ARGV. 27 EXTRA_BYTES is additional space to allocate for the sim_cpu struct. */ 28 /* ??? wip. better solution must wait. */ 29 30 SIM_RC 31 sim_cpu_alloc_all (SIM_DESC sd, int ncpus, int extra_bytes) 32 { 33 int c; 34 35 for (c = 0; c < ncpus; ++c) 36 STATE_CPU (sd, c) = sim_cpu_alloc (sd, extra_bytes); 37 return SIM_RC_OK; 38 } 39 40 /* Allocate space for a cpu object. 41 EXTRA_BYTES is additional space to allocate for the sim_cpu struct. */ 42 43 sim_cpu * 44 sim_cpu_alloc (SIM_DESC sd, int extra_bytes) 45 { 46 return zalloc (sizeof (sim_cpu) + extra_bytes); 47 } 48 49 /* Free all resources held by all cpus. */ 50 51 void 52 sim_cpu_free_all (SIM_DESC sd) 53 { 54 int c; 55 56 for (c = 0; c < MAX_NR_PROCESSORS; ++c) 57 if (STATE_CPU (sd, c)) 58 sim_cpu_free (STATE_CPU (sd, c)); 59 } 60 61 /* Free all resources used by CPU. */ 62 63 void 64 sim_cpu_free (sim_cpu *cpu) 65 { 66 free (cpu); 67 } 68 69 /* PC utilities. */ 70 71 sim_cia 72 sim_pc_get (sim_cpu *cpu) 73 { 74 return (* CPU_PC_FETCH (cpu)) (cpu); 75 } 76 77 void 78 sim_pc_set (sim_cpu *cpu, sim_cia newval) 79 { 80 (* CPU_PC_STORE (cpu)) (cpu, newval); 81 } 82