1 /* New version of run front end support for simulators.
2 Copyright (C) 1997, 2004, 2007-2012 Free Software Foundation, Inc.
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 3 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
23 extern char **environ
;
31 static void usage (void);
33 extern host_callback default_callback
;
44 fprintf (stderr
, "Quit!\n");
50 main (int argc
, char **argv
)
53 char **prog_argv
= NULL
;
58 RETSIGTYPE (*prev_sigint
) ();
60 myname
= argv
[0] + strlen (argv
[0]);
61 while (myname
> argv
[0] && myname
[-1] != '/')
64 /* INTERNAL: When MYNAME is `step', single step the simulator
65 instead of allowing it to run free. The sole purpose of this
66 HACK is to allow the sim_resume interface's step argument to be
67 tested without having to build/run gdb. */
68 if (strlen (myname
) > 4 && strcmp (myname
- 4, "step") == 0)
73 /* Create an instance of the simulator. */
74 default_callback
.init (&default_callback
);
75 sd
= sim_open (SIM_OPEN_STANDALONE
, &default_callback
, NULL
, argv
);
78 if (STATE_MAGIC (sd
) != SIM_MAGIC_NUMBER
)
80 fprintf (stderr
, "Internal error - bad magic number in simulator struct\n");
84 /* We can't set the endianness in the callback structure until
85 sim_config is called, which happens in sim_open. */
86 default_callback
.target_endian
87 = (CURRENT_TARGET_BYTE_ORDER
== BIG_ENDIAN
88 ? BFD_ENDIAN_BIG
: BFD_ENDIAN_LITTLE
);
90 /* Was there a program to run? */
91 prog_argv
= STATE_PROG_ARGV (sd
);
92 prog_bfd
= STATE_PROG_BFD (sd
);
93 if (prog_argv
== NULL
|| *prog_argv
== NULL
)
98 /* For simulators that don't open prog during sim_open() */
101 prog_bfd
= bfd_openr (name
, 0);
102 if (prog_bfd
== NULL
)
104 fprintf (stderr
, "%s: can't open \"%s\": %s\n",
105 myname
, name
, bfd_errmsg (bfd_get_error ()));
108 if (!bfd_check_format (prog_bfd
, bfd_object
))
110 fprintf (stderr
, "%s: \"%s\" is not an object file: %s\n",
111 myname
, name
, bfd_errmsg (bfd_get_error ()));
116 if (STATE_VERBOSE_P (sd
))
117 printf ("%s %s\n", myname
, name
);
119 /* Load the program into the simulator. */
120 if (sim_load (sd
, name
, prog_bfd
, 0) == SIM_RC_FAIL
)
123 /* Prepare the program for execution. */
125 sim_create_inferior (sd
, prog_bfd
, prog_argv
, environ
);
127 sim_create_inferior (sd
, prog_bfd
, prog_argv
, NULL
);
130 /* To accommodate relative file paths, chdir to sysroot now. We
131 mustn't do this until BFD has opened the program, else we wouldn't
132 find the executable if it has a relative file path. */
133 if (simulator_sysroot
[0] != '\0' && chdir (simulator_sysroot
) < 0)
135 fprintf (stderr
, "%s: can't change directory to \"%s\"\n",
136 myname
, simulator_sysroot
);
140 /* Run/Step the program. */
145 prev_sigint
= signal (SIGINT
, cntrl_c
);
146 sim_resume (sd
, 1/*step*/, 0);
147 signal (SIGINT
, prev_sigint
);
148 sim_stop_reason (sd
, &reason
, &sigrc
);
150 if ((reason
== sim_stopped
) &&
151 (sigrc
== sim_signal_to_host (sd
, SIM_SIGINT
)))
152 break; /* exit on control-C */
154 /* remain on breakpoint or signals in oe mode*/
155 while (((reason
== sim_signalled
) &&
156 (sigrc
== sim_signal_to_host (sd
, SIM_SIGTRAP
))) ||
157 ((reason
== sim_stopped
) &&
158 (STATE_ENVIRONMENT (sd
) == OPERATING_ENVIRONMENT
)));
164 #if defined (HAVE_SIGACTION) && defined (SA_RESTART)
165 struct sigaction sa
, osa
;
166 sa
.sa_handler
= cntrl_c
;
167 sigemptyset (&sa
.sa_mask
);
169 sigaction (SIGINT
, &sa
, &osa
);
170 prev_sigint
= osa
.sa_handler
;
172 prev_sigint
= signal (SIGINT
, cntrl_c
);
174 sim_resume (sd
, 0, sigrc
);
175 signal (SIGINT
, prev_sigint
);
176 sim_stop_reason (sd
, &reason
, &sigrc
);
178 if ((reason
== sim_stopped
) &&
179 (sigrc
== sim_signal_to_host (sd
, SIM_SIGINT
)))
180 break; /* exit on control-C */
182 /* remain on signals in oe mode */
183 } while ((reason
== sim_stopped
) &&
184 (STATE_ENVIRONMENT (sd
) == OPERATING_ENVIRONMENT
));
187 /* Print any stats the simulator collected. */
188 if (STATE_VERBOSE_P (sd
))
191 /* Shutdown the simulator. */
194 /* If reason is sim_exited, then sigrc holds the exit code which we want
195 to return. If reason is sim_stopped or sim_signalled, then sigrc holds
196 the signal that the simulator received; we want to return that to
199 /* Why did we stop? */
205 fprintf (stderr
, "program stopped with signal %d.\n", sigrc
);
212 fprintf (stderr
, "program in undefined state (%d:%d)\n", reason
, sigrc
);
223 fprintf (stderr
, "Usage: %s [options] program [program args]\n", myname
);
224 fprintf (stderr
, "Run `%s --help' for full list of options.\n", myname
);