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6df01ab8ab
The defs.h header will take care of including the various config.h headers. For now, it's just config.h, but we'll add more when we integrate gnulib in. This header should be used instead of config.h, and should be the first include in every .c file. We won't rely on the old behavior where we expected files to include the port's sim-main.h which then includes the common sim-basics.h which then includes config.h. We have a ton of code that includes things before sim-main.h, and it sometimes needs to be that way. Creating a dedicated header avoids the ordering mess and implicit inclusion that shows up otherwise.
98 lines
2.8 KiB
C
98 lines
2.8 KiB
C
/* Generic simulator resume.
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Copyright (C) 1997-2021 Free Software Foundation, Inc.
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Contributed by Cygnus Support.
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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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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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(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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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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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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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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/* This must come before any other includes. */
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#include "defs.h"
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#include "sim-main.h"
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#include "sim-assert.h"
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/* Halt the simulator after just one instruction */
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static void
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has_stepped (SIM_DESC sd,
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void *data)
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{
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ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
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sim_engine_halt (sd, NULL, NULL, NULL_CIA, sim_stopped, SIM_SIGTRAP);
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}
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/* Generic resume - assumes the existance of sim_engine_run */
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void
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sim_resume (SIM_DESC sd,
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int step,
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int siggnal)
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{
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sim_engine *engine = STATE_ENGINE (sd);
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jmp_buf buf;
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int jmpval;
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ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
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/* we only want to be single stepping the simulator once */
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if (engine->stepper != NULL)
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{
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sim_events_deschedule (sd, engine->stepper);
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engine->stepper = NULL;
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}
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if (step)
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engine->stepper = sim_events_schedule (sd, 1, has_stepped, sd);
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sim_module_resume (sd);
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/* run/resume the simulator */
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engine->jmpbuf = &buf;
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jmpval = setjmp (buf);
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if (jmpval == sim_engine_start_jmpval
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|| jmpval == sim_engine_restart_jmpval)
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{
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int last_cpu_nr = sim_engine_last_cpu_nr (sd);
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int next_cpu_nr = sim_engine_next_cpu_nr (sd);
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int nr_cpus = sim_engine_nr_cpus (sd);
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int sig_to_deliver;
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sim_events_preprocess (sd, last_cpu_nr >= nr_cpus, next_cpu_nr >= nr_cpus);
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if (next_cpu_nr >= nr_cpus)
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next_cpu_nr = 0;
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/* Only deliver the SIGGNAL [sic] the first time through - don't
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re-deliver any SIGGNAL during a restart. NOTE: A new local
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variable is used to avoid problems with the automatic
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variable ``siggnal'' being trashed by a long jump. */
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if (jmpval == sim_engine_start_jmpval)
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sig_to_deliver = siggnal;
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else
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sig_to_deliver = 0;
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#ifdef SIM_CPU_EXCEPTION_RESUME
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{
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sim_cpu* cpu = STATE_CPU (sd, next_cpu_nr);
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SIM_CPU_EXCEPTION_RESUME (sd, cpu, sig_to_deliver);
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}
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#endif
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sim_engine_run (sd, next_cpu_nr, nr_cpus, sig_to_deliver);
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}
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engine->jmpbuf = NULL;
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sim_module_suspend (sd);
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}
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