int cleanup() {
// shutdown child
gdb_write("quit\n");
int rc = wait_for_child_gone();
if(!rc)
rc = term_child();
return rc;
}
void
handle_exception (int exceptionVector)
{
int sigval, stepping;
int addr, length, i;
unsigned char *ptr;
unsigned char buf[16];
int binary;
if (!finish_from_step ())
return; /* "false step": let the target continue */
gdb_m32r_vector = exceptionVector;
if (remote_debug)
{
mem2hex ((unsigned char *) &exceptionVector, buf, 4, 0);
gdb_error ("Handle exception %s, ", buf);
mem2hex ((unsigned char *) ®isters[PC], buf, 4, 0);
gdb_error ("PC == 0x%s\n", buf);
}
/* reply to host that an exception has occurred */
sigval = computeSignal (exceptionVector);
ptr = remcomOutBuffer;
*ptr++ = 'T'; /* notify gdb with signo, PC, FP and SP */
*ptr++ = hexchars[sigval >> 4];
*ptr++ = hexchars[sigval & 0xf];
*ptr++ = hexchars[PC >> 4];
*ptr++ = hexchars[PC & 0xf];
*ptr++ = ':';
ptr = mem2hex ((unsigned char *) ®isters[PC], ptr, 4, 0); /* PC */
*ptr++ = ';';
*ptr++ = hexchars[R13 >> 4];
*ptr++ = hexchars[R13 & 0xf];
*ptr++ = ':';
ptr = mem2hex ((unsigned char *) ®isters[R13], ptr, 4, 0); /* FP */
*ptr++ = ';';
*ptr++ = hexchars[R15 >> 4];
*ptr++ = hexchars[R15 & 0xf];
*ptr++ = ':';
ptr = mem2hex ((unsigned char *) ®isters[R15], ptr, 4, 0); /* SP */
*ptr++ = ';';
*ptr++ = 0;
if (exceptionVector == 0) /* simulated SYS call stuff */
{
mem2hex ((unsigned char *) ®isters[PC], buf, 4, 0);
switch (registers[R0])
{
case SYS_exit:
gdb_error ("Target program has exited at %s\n", buf);
ptr = remcomOutBuffer;
*ptr++ = 'W';
sigval = registers[R1] & 0xff;
*ptr++ = hexchars[sigval >> 4];
*ptr++ = hexchars[sigval & 0xf];
*ptr++ = 0;
break;
case SYS_open:
gdb_error ("Target attempts SYS_open call at %s\n", buf);
break;
case SYS_close:
gdb_error ("Target attempts SYS_close call at %s\n", buf);
break;
case SYS_read:
gdb_error ("Target attempts SYS_read call at %s\n", buf);
break;
case SYS_write:
if (registers[R1] == 1 || /* write to stdout */
registers[R1] == 2) /* write to stderr */
{ /* (we can do that) */
registers[R0] =
gdb_write ((void *) registers[R2], registers[R3]);
return;
}
else
gdb_error ("Target attempts SYS_write call at %s\n", buf);
break;
case SYS_lseek:
gdb_error ("Target attempts SYS_lseek call at %s\n", buf);
break;
case SYS_unlink:
gdb_error ("Target attempts SYS_unlink call at %s\n", buf);
break;
case SYS_getpid:
gdb_error ("Target attempts SYS_getpid call at %s\n", buf);
break;
case SYS_kill:
gdb_error ("Target attempts SYS_kill call at %s\n", buf);
break;
case SYS_fstat:
gdb_error ("Target attempts SYS_fstat call at %s\n", buf);
break;
default:
gdb_error ("Target attempts unknown SYS call at %s\n", buf);
break;
}
}