FreeChainXenon/binutils-gdb
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2002-01-17 Daniel Jacobowitz <drow@mvista.com>

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* low-hppabsd.c (myattach): New function, returning -1.
        * low-lynx.c (myattach): Likewise.
        * low-nbsd.c (myattach): Likewise.
        * low-sim.c (myattach): Likewise.
        * low-sparc.c (myattach): Likewise.
        * low-sun3.c (myattach): Likewise.

        * low-linux.c (myattach): New function.

        * server.c (attach_inferior): New function.
        (main): Handle "--attach".
This commit is contained in:
Daniel Jacobowitz 2002-01-17 20:46:16 +00:00
parent 55baa95bb2
commit 45b7b34510
9 changed files with 140 additions and 9 deletions
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76
gdb/gdbserver/server.c
View file

@ -39,6 +39,21 @@ start_inferior (char *argv[], char *statusptr)
return mywait (statusptr);
}
static int
attach_inferior (int pid, char *statusptr, unsigned char *sigptr)
{
/* myattach should return -1 if attaching is unsupported,
0 if it succeeded, and call error() otherwise. */
if (myattach (pid) != 0)
return -1;
inferior_pid = pid;
*sigptr = mywait (statusptr);
return 0;
}
extern int remote_debug;
int
@ -49,6 +64,10 @@ main (int argc, char *argv[])
unsigned char signal;
unsigned int len;
CORE_ADDR mem_addr;
int bad_attach = 0;
int pid = 0;
int attached = 0;
char *arg_end;
if (setjmp (toplevel))
{
@ -56,15 +75,44 @@ main (int argc, char *argv[])
exit (1);
}
if (argc < 3)
error ("Usage: gdbserver tty prog [args ...]");
if (argc >= 3 && strcmp (argv[2], "--attach") == 0)
{
if (argc == 4
&& argv[3] != '\0'
&& (pid = strtoul (argv[3], &arg_end, 10)) != 0
&& *arg_end == '\0')
{
;
}
else
bad_attach = 1;
}
if (argc < 3 || bad_attach)
error ("Usage:\tgdbserver tty prog [args ...]\n"
"\tgdbserver tty --attach pid");
initialize_low ();
/* Wait till we are at first instruction in program. */
signal = start_inferior (&argv[2], &status);
if (pid == 0)
{
/* Wait till we are at first instruction in program. */
signal = start_inferior (&argv[2], &status);
/* We are now stopped at the first instruction of the target process */
/* We are now stopped at the first instruction of the target process */
}
else
{
switch (attach_inferior (pid, &status, &signal))
{
case -1:
error ("Attaching not supported on this target");
break;
default:
attached = 1;
break;
}
}
while (1)
{
@ -83,8 +131,18 @@ main (int argc, char *argv[])
remote_debug = !remote_debug;
break;
case '!':
extended_protocol = 1;
prepare_resume_reply (own_buf, status, signal);
if (attached == 0)
{
extended_protocol = 1;
prepare_resume_reply (own_buf, status, signal);
}
else
{
/* We can not use the extended protocol if we are
attached, because we can not restart the running
program. So return unrecognized. */
own_buf[0] = '\0';
}
break;
case '?':
prepare_resume_reply (own_buf, status, signal);
@ -250,8 +308,8 @@ main (int argc, char *argv[])
}
else
{
fprintf (stderr, "Remote side has terminated connection. GDBserver will reopen the connection.\n");
fprintf (stderr, "Remote side has terminated connection. "
"GDBserver will reopen the connection.\n");
remote_close ();
}
}