1 /* Generic simulator resume.
2 Copyright (C) 1997 Free Software Foundation, Inc.
3 Contributed by Cygnus Support.
5 This file is part of GDB, the GNU debugger.
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 2, or (at your option)
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.
17 You should have received a copy of the GNU General Public License along
18 with this program; if not, write to the Free Software Foundation, Inc.,
19 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
24 #include "sim-assert.h"
26 /* Halt the simulator after just one instruction */
29 has_stepped (SIM_DESC sd
,
32 ASSERT (STATE_MAGIC (sd
) == SIM_MAGIC_NUMBER
);
33 sim_engine_halt (sd
, NULL
, NULL
, NULL_CIA
, sim_stopped
, SIGTRAP
);
37 /* Generic resume - assumes the existance of sim_engine_run */
40 sim_resume (SIM_DESC sd
,
44 sim_engine
*engine
= STATE_ENGINE (sd
);
48 ASSERT (STATE_MAGIC (sd
) == SIM_MAGIC_NUMBER
);
50 /* we only want to be single stepping the simulator once */
51 if (engine
->stepper
!= NULL
)
53 sim_events_deschedule (sd
, engine
->stepper
);
54 engine
->stepper
= NULL
;
57 engine
->stepper
= sim_events_schedule (sd
, 1, has_stepped
, sd
);
59 /* run/resume the simulator */
60 /* jmpval: 0 (initial use) start simulator
65 engine
->jmpbuf
= &buf
;
66 jmpval
= setjmp (buf
);
67 if (jmpval
== 0 || jmpval
== 2)
69 int last_cpu_nr
= sim_engine_last_cpu_nr (sd
);
70 int next_cpu_nr
= sim_engine_next_cpu_nr (sd
);
71 int nr_cpus
= MAX_NR_PROCESSORS
; /* FIXME */
72 sim_events_preprocess (sd
, last_cpu_nr
>= nr_cpus
, next_cpu_nr
>= nr_cpus
);
73 if (next_cpu_nr
>= nr_cpus
)
75 sim_engine_run (sd
, next_cpu_nr
, siggnal
);
77 engine
->jmpbuf
= NULL
;
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