Stack tracing?

[Don Bowman]

Does anyone know of, or have, code to trace the stack
on a MIPS (R4K) processor? I've got the algorithm in
the SYS V ABI, but it would be nice not to have to write
it myself.

It needn't be symbolic, just straight hex addresses is fine.

--
bow...@waterloo.hp.com ** 519-883-3019 ** http://www.waterloo.hp.com/~bowman

[David B.Anderson]

In article <42562j$4...@hppadbk.waterloo.hp.com>,

Don Bowman <bow...@waterloo.hp.com> wrote:
>Does anyone know of, or have, code to trace the stack
>on a MIPS (R4K) processor? I've got the algorithm in
>the SYS V ABI, but it would be nice not to have to write
>it myself.
>
>It needn't be symbolic, just straight hex addresses is fine.

>bow...@waterloo.hp.com ** 519-883-3019 ** http://www.waterloo.hp.com/~bowman

hp?

It's quite hard to do without some debug information.

There is no standard supported way to do it at present.

By far the simplest way to do this is to use dbx:

#include <stdio.h>
#include <signal.h>
extern char *sys_errlist[];
extern int sys_nerr;
#define DIED -1
int proc3(i,j)
int i,j;
{
int mypid, errno, termsig;
static char *dbxstring = " ";
static char *createfile =" ";
static char *filename = "/tmp/tttttttttt";
static char *rmfile = " ";
int irr;
mypid = getpid();
sprintf(filename + 7, "%d" , mypid);
sprintf (dbxstring, "echo \"where\nquit\" | dbx -p %d 1>&2",mypid);
sprintf (createfile, "echo \"where\nquit\" > %s",filename);
sprintf (rmfile, "rm -rf %s",filename);
irr = system (dbxstring);
if (irr != 0)
perror ("Unable to call dbx for trace");
if (system (rmfile) < 0)
fprintf (stderr, "Error unable to remove temp file: %s\n", filename);
return (0);
}
proc2(i,j)
int i,j;
{
int kk;
kk = proc3(j,i);
if (kk == 0)
printf ("successfull return from trace\n");
}
main()
{
int i,j;
i = 10;
j = 12;
proc2(i,j);
}

[ David B. Anderson (415)390-4263 da...@sgi.com ]
[ Suddenly to me that no verb in this sentence. -m.toy]