1 /* CPU support. 2 Copyright (C) 1998-2023 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 /* This must come before any other includes. */ 21 #include "defs.h" 22 23 #include <stdlib.h> 24 25 #include "bfd.h" 26 27 #include "sim-main.h" 28 29 /* Allocate space for all cpus in the simulator. 30 Space for the cpu must currently exist prior to parsing ARGV. */ 31 /* ??? wip. better solution must wait. */ 32 33 SIM_RC 34 sim_cpu_alloc_all (SIM_DESC sd, int ncpus) 35 { 36 int c; 37 38 for (c = 0; c < ncpus; ++c) 39 STATE_CPU (sd, c) = sim_cpu_alloc (sd); 40 return SIM_RC_OK; 41 } 42 43 /* Allocate space for a cpu object. 44 EXTRA_BYTES is additional space to allocate for the sim_cpu struct. */ 45 46 sim_cpu * 47 sim_cpu_alloc (SIM_DESC sd) 48 { 49 int extra_bytes = 0; 50 51 #ifdef CGEN_ARCH 52 extra_bytes += cgen_cpu_max_extra_bytes (sd); 53 #endif 54 55 return zalloc (sizeof (sim_cpu) + extra_bytes); 56 } 57 58 /* Free all resources held by all cpus. */ 59 60 void 61 sim_cpu_free_all (SIM_DESC sd) 62 { 63 int c; 64 65 for (c = 0; c < MAX_NR_PROCESSORS; ++c) 66 if (STATE_CPU (sd, c)) 67 sim_cpu_free (STATE_CPU (sd, c)); 68 } 69 70 /* Free all resources used by CPU. */ 71 72 void 73 sim_cpu_free (sim_cpu *cpu) 74 { 75 free (cpu); 76 } 77 78 /* PC utilities. */ 79 80 sim_cia 81 sim_pc_get (sim_cpu *cpu) 82 { 83 return (* CPU_PC_FETCH (cpu)) (cpu); 84 } 85 86 void 87 sim_pc_set (sim_cpu *cpu, sim_cia newval) 88 { 89 (* CPU_PC_STORE (cpu)) (cpu, newval); 90 } 91