/* CPU support.
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/* CPU support.
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Copyright (C) 1998, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
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Copyright (C) 1998, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
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Contributed by Cygnus Solutions.
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Contributed by Cygnus Solutions.
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This file is part of GDB, the GNU debugger.
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This file is part of GDB, the GNU debugger.
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This program is free software; you can redistribute it and/or modify
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "sim-main.h"
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#include "sim-main.h"
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#include "bfd.h"
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#include "bfd.h"
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/* Allocate space for all cpus in the simulator.
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/* Allocate space for all cpus in the simulator.
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Space for the cpu must currently exist prior to parsing ARGV.
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Space for the cpu must currently exist prior to parsing ARGV.
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EXTRA_BYTES is additional space to allocate for the sim_cpu struct. */
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EXTRA_BYTES is additional space to allocate for the sim_cpu struct. */
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/* ??? wip. better solution must wait. */
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/* ??? wip. better solution must wait. */
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SIM_RC
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SIM_RC
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sim_cpu_alloc_all (SIM_DESC sd, int ncpus, int extra_bytes)
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sim_cpu_alloc_all (SIM_DESC sd, int ncpus, int extra_bytes)
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{
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{
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int c;
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int c;
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for (c = 0; c < ncpus; ++c)
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for (c = 0; c < ncpus; ++c)
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STATE_CPU (sd, c) = sim_cpu_alloc (sd, extra_bytes);
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STATE_CPU (sd, c) = sim_cpu_alloc (sd, extra_bytes);
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return SIM_RC_OK;
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return SIM_RC_OK;
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}
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}
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/* Allocate space for a cpu object.
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/* Allocate space for a cpu object.
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EXTRA_BYTES is additional space to allocate for the sim_cpu struct. */
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EXTRA_BYTES is additional space to allocate for the sim_cpu struct. */
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sim_cpu *
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sim_cpu *
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sim_cpu_alloc (SIM_DESC sd, int extra_bytes)
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sim_cpu_alloc (SIM_DESC sd, int extra_bytes)
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{
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{
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return zalloc (sizeof (sim_cpu) + extra_bytes);
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return zalloc (sizeof (sim_cpu) + extra_bytes);
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}
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}
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/* Free all resources held by all cpus. */
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/* Free all resources held by all cpus. */
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void
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void
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sim_cpu_free_all (SIM_DESC sd)
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sim_cpu_free_all (SIM_DESC sd)
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{
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{
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int c;
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int c;
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for (c = 0; c < MAX_NR_PROCESSORS; ++c)
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for (c = 0; c < MAX_NR_PROCESSORS; ++c)
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if (STATE_CPU (sd, c))
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if (STATE_CPU (sd, c))
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sim_cpu_free (STATE_CPU (sd, c));
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sim_cpu_free (STATE_CPU (sd, c));
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}
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}
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/* Free all resources used by CPU. */
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/* Free all resources used by CPU. */
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void
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void
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sim_cpu_free (sim_cpu *cpu)
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sim_cpu_free (sim_cpu *cpu)
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{
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{
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zfree (cpu);
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zfree (cpu);
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}
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}
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/* PC utilities. */
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/* PC utilities. */
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sim_cia
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sim_cia
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sim_pc_get (sim_cpu *cpu)
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sim_pc_get (sim_cpu *cpu)
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{
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{
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return (* CPU_PC_FETCH (cpu)) (cpu);
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return (* CPU_PC_FETCH (cpu)) (cpu);
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}
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}
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void
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void
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sim_pc_set (sim_cpu *cpu, sim_cia newval)
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sim_pc_set (sim_cpu *cpu, sim_cia newval)
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{
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{
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(* CPU_PC_STORE (cpu)) (cpu, newval);
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(* CPU_PC_STORE (cpu)) (cpu, newval);
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}
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}
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