1*b725ae77Skettenis /* Target operations for the remote server for GDB.
2*b725ae77Skettenis Copyright 2002, 2004
3*b725ae77Skettenis Free Software Foundation, Inc.
4*b725ae77Skettenis
5*b725ae77Skettenis Contributed by MontaVista Software.
6*b725ae77Skettenis
7*b725ae77Skettenis This file is part of GDB.
8*b725ae77Skettenis
9*b725ae77Skettenis This program is free software; you can redistribute it and/or modify
10*b725ae77Skettenis it under the terms of the GNU General Public License as published by
11*b725ae77Skettenis the Free Software Foundation; either version 2 of the License, or
12*b725ae77Skettenis (at your option) any later version.
13*b725ae77Skettenis
14*b725ae77Skettenis This program is distributed in the hope that it will be useful,
15*b725ae77Skettenis but WITHOUT ANY WARRANTY; without even the implied warranty of
16*b725ae77Skettenis MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17*b725ae77Skettenis GNU General Public License for more details.
18*b725ae77Skettenis
19*b725ae77Skettenis You should have received a copy of the GNU General Public License
20*b725ae77Skettenis along with this program; if not, write to the Free Software
21*b725ae77Skettenis Foundation, Inc., 59 Temple Place - Suite 330,
22*b725ae77Skettenis Boston, MA 02111-1307, USA. */
23*b725ae77Skettenis
24*b725ae77Skettenis #include "server.h"
25*b725ae77Skettenis
26*b725ae77Skettenis struct target_ops *the_target;
27*b725ae77Skettenis
28*b725ae77Skettenis void
set_desired_inferior(int use_general)29*b725ae77Skettenis set_desired_inferior (int use_general)
30*b725ae77Skettenis {
31*b725ae77Skettenis struct thread_info *found;
32*b725ae77Skettenis
33*b725ae77Skettenis if (use_general == 1)
34*b725ae77Skettenis {
35*b725ae77Skettenis found = (struct thread_info *) find_inferior_id (&all_threads,
36*b725ae77Skettenis general_thread);
37*b725ae77Skettenis }
38*b725ae77Skettenis else
39*b725ae77Skettenis {
40*b725ae77Skettenis found = NULL;
41*b725ae77Skettenis
42*b725ae77Skettenis /* If we are continuing any (all) thread(s), use step_thread
43*b725ae77Skettenis to decide which thread to step and/or send the specified
44*b725ae77Skettenis signal to. */
45*b725ae77Skettenis if (step_thread > 0 && (cont_thread == 0 || cont_thread == -1))
46*b725ae77Skettenis found = (struct thread_info *) find_inferior_id (&all_threads,
47*b725ae77Skettenis step_thread);
48*b725ae77Skettenis
49*b725ae77Skettenis if (found == NULL)
50*b725ae77Skettenis found = (struct thread_info *) find_inferior_id (&all_threads,
51*b725ae77Skettenis cont_thread);
52*b725ae77Skettenis }
53*b725ae77Skettenis
54*b725ae77Skettenis if (found == NULL)
55*b725ae77Skettenis current_inferior = (struct thread_info *) all_threads.head;
56*b725ae77Skettenis else
57*b725ae77Skettenis current_inferior = found;
58*b725ae77Skettenis }
59*b725ae77Skettenis
60*b725ae77Skettenis int
read_inferior_memory(CORE_ADDR memaddr,char * myaddr,int len)61*b725ae77Skettenis read_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len)
62*b725ae77Skettenis {
63*b725ae77Skettenis int res;
64*b725ae77Skettenis res = (*the_target->read_memory) (memaddr, myaddr, len);
65*b725ae77Skettenis check_mem_read (memaddr, myaddr, len);
66*b725ae77Skettenis return res;
67*b725ae77Skettenis }
68*b725ae77Skettenis
69*b725ae77Skettenis int
write_inferior_memory(CORE_ADDR memaddr,const char * myaddr,int len)70*b725ae77Skettenis write_inferior_memory (CORE_ADDR memaddr, const char *myaddr, int len)
71*b725ae77Skettenis {
72*b725ae77Skettenis /* Lacking cleanups, there is some potential for a memory leak if the
73*b725ae77Skettenis write fails and we go through error(). Make sure that no more than
74*b725ae77Skettenis one buffer is ever pending by making BUFFER static. */
75*b725ae77Skettenis static char *buffer = 0;
76*b725ae77Skettenis int res;
77*b725ae77Skettenis
78*b725ae77Skettenis if (buffer != NULL)
79*b725ae77Skettenis free (buffer);
80*b725ae77Skettenis
81*b725ae77Skettenis buffer = malloc (len);
82*b725ae77Skettenis memcpy (buffer, myaddr, len);
83*b725ae77Skettenis check_mem_write (memaddr, buffer, len);
84*b725ae77Skettenis res = (*the_target->write_memory) (memaddr, buffer, len);
85*b725ae77Skettenis free (buffer);
86*b725ae77Skettenis buffer = NULL;
87*b725ae77Skettenis
88*b725ae77Skettenis return res;
89*b725ae77Skettenis }
90*b725ae77Skettenis
91*b725ae77Skettenis unsigned char
mywait(char * statusp,int connected_wait)92*b725ae77Skettenis mywait (char *statusp, int connected_wait)
93*b725ae77Skettenis {
94*b725ae77Skettenis unsigned char ret;
95*b725ae77Skettenis
96*b725ae77Skettenis if (connected_wait)
97*b725ae77Skettenis server_waiting = 1;
98*b725ae77Skettenis
99*b725ae77Skettenis ret = (*the_target->wait) (statusp);
100*b725ae77Skettenis
101*b725ae77Skettenis if (connected_wait)
102*b725ae77Skettenis server_waiting = 0;
103*b725ae77Skettenis
104*b725ae77Skettenis return ret;
105*b725ae77Skettenis }
106*b725ae77Skettenis
107*b725ae77Skettenis void
set_target_ops(struct target_ops * target)108*b725ae77Skettenis set_target_ops (struct target_ops *target)
109*b725ae77Skettenis {
110*b725ae77Skettenis the_target = (struct target_ops *) malloc (sizeof (*the_target));
111*b725ae77Skettenis memcpy (the_target, target, sizeof (*the_target));
112*b725ae77Skettenis }
113