* Copyright (c) 1980, 1993
* The Regents of the University of California. All rights reserved.
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
static char sccsid
[] = "@(#)start.c 8.1 (Berkeley) 6/6/93";
* For px, pstart does a traced exec to read in px and then stop. But we
* want control after px has read in the obj file and before it starts
* executing. The zeroth argument to px tells it to give us control
* by sending itself a signal just prior to interpreting.
* We set a "END_BP" breakpoint at the end of the code so that the
* process data doesn't disappear after the program terminates.
start(argv
, infile
, outfile
)
pstart(process
, cmd
, argv
, infile
, outfile
);
if (process
->status
== STOPPED
) {
if (process
->status
!= STOPPED
) {
panic("px exited with %d", process
->exitval
);
dread(&ap
, process
->fp
, sizeof(ap
));
ap
= (TRAPARGS
*)((unsigned)ap
- 4);
dread(&RETLOC
, process
->fp
- 8, sizeof(RETLOC
));
dread(&ap
, process
->fp
+ 2*sizeof(int), sizeof(ap
));
dread(&t
, ap
, sizeof(TRAPARGS
));
# define STKNARGS (sizeof(int)*(NARGS+1))
# define NARGLOC t.trp_removed
# define STKNARGS (NARGS)
if (NARGLOC
!= STKNARGS
) {
panic("start: args out of sync");
addbp(lastaddr(), END_BP
, NIL
, NIL
, NIL
, 0);
* Note the termination of the program. We do this so as to avoid
* having the process exit, which would make the values of variables
* Although the END_BP should really be deleted, it is taken
* care of by fixbps the next time the program runs.
printf("\nexecution completed\n");
skimsource(srcfilename(pc
));
* set up what signals we want to trace
psigtrace(p
, SIGINT
, TRUE
);
psigtrace(p
, SIGTRAP
, TRUE
);
psigtrace(p
, SIGIOT
, TRUE
);
psigtrace(p
, SIGILL
, TRUE
);
psigtrace(p
, SIGBUS
, TRUE
);