static int _server_handle_qSupported(libgdbr_t *g) {
int ret;
char *buf;
if (!(buf = malloc (128))) {
return -1;
}
snprintf (buf, 127, "PacketSize=%x", g->read_max - 1);
ret = handle_qSupported (g);
if (ret < 0) {
return ret;
}
return send_msg (g, buf);
}
static int _server_handle_qSupported(libgdbr_t *g) {
int ret;
char *buf;
if (!(buf = malloc (128))) {
return -1;
}
snprintf (buf, 127, "PacketSize=%x;QStartNoAckMode+", (ut32) (g->read_max - 1));
if ((ret = handle_qSupported (g)) < 0) {
return -1;
}
ret = send_msg (g, buf);
free (buf);
return ret;
}
int gdbr_connect(libgdbr_t *g, const char *host, int port) {
const char *message = "qSupported:multiprocess+;qRelocInsn+;xmlRegisters=i386";
RStrBuf tmp;
r_strbuf_init (&tmp);
int ret;
if (!g || !host) {
return -1;
}
// Initial max_packet_size for remote target (minimum so far for AVR = 64)
g->stub_features.pkt_sz = 64;
char *env_pktsz_str;
ut32 env_pktsz;
if ((env_pktsz_str = getenv ("R2_GDB_PKTSZ"))) {
if ((env_pktsz = (ut32) strtoul (env_pktsz_str, NULL, 10))) {
g->stub_features.pkt_sz = R_MAX (env_pktsz, 64);
}
}
ret = snprintf (tmp.buf, sizeof (tmp.buf) - 1, "%d", port);
if (!ret) {
return -1;
}
if (*host == '/') {
ret = r_socket_connect_serial (g->sock, host, port, 1);
} else {
ret = r_socket_connect_tcp (g->sock, host, tmp.buf, 200);
}
if (!ret) {
return -1;
}
if (send_ack (g) < 0) {
return -1;
}
read_packet (g);
g->connected = 1;
// TODO add config possibility here
ret = send_msg (g, message);
if (ret < 0) {
return ret;
}
read_packet (g);
ret = handle_qSupported (g);
if (ret < 0) {
return ret;
}
if (env_pktsz > 0) {
g->stub_features.pkt_sz = R_MAX (R_MIN (env_pktsz, g->stub_features.pkt_sz), 64);
}
// If no-ack supported, enable no-ack mode (should speed up things)
if (g->stub_features.QStartNoAckMode) {
if (send_msg (g, "QStartNoAckMode") < 0) {
return -1;
}
read_packet (g);
if (!strncmp (g->data, "OK", 2)) {
// Just in case, send ack
send_ack (g);
g->no_ack = true;
}
}
if (g->remote_type == GDB_REMOTE_TYPE_LLDB) {
return gdbr_connect_lldb (g);
}
// Query the thread / process id
g->stub_features.qC = true;
g->pid = g->tid = 0;
ret = send_msg (g, "qC");
if (ret < 0) {
return ret;
}
read_packet (g);
ret = handle_qC (g);
if (ret < 0) {
g->stub_features.qC = false;
}
// Check if vCont is supported
gdbr_check_vcont (g);
// Set pid/thread for operations other than "step" and "continue"
if (g->stub_features.multiprocess) {
snprintf (tmp.buf, sizeof (tmp.buf) - 1, "Hgp%x.0", (ut32) g->pid);
#if 0
if (g->tid < 0) {
snprintf (tmp.buf, sizeof (tmp.buf) - 1, "Hgp%x.-1", (ut32) g->pid);
} else {
snprintf (tmp.buf, sizeof (tmp.buf) - 1, "Hgp%x.%x", (ut32) g->pid, (ut32) g->tid);
}
#endif
} else {
snprintf (tmp.buf, sizeof (tmp.buf) - 1, "Hg0");
#if 0
if (g->tid < 0) {
snprintf (tmp.buf, sizeof (tmp.buf) - 1, "Hg-1");
} else {
snprintf (tmp.buf, sizeof (tmp.buf) - 1, "Hg%x", (ut32) g->tid);
}
#endif
}
ret = send_msg (g, tmp.buf);
if (ret < 0) {
return ret;
}
read_packet (g);
ret = send_ack (g);
if (strncmp (g->data, "OK", 2)) {
// return -1;
}
// Set thread for "step" and "continue" operations
snprintf (tmp.buf, sizeof (tmp.buf) - 1, "Hc-1");
ret = send_msg (g, tmp.buf);
if (ret < 0) {
return ret;
}
read_packet (g);
ret = send_ack (g);
if (strncmp (g->data, "OK", 2)) {
// return -1;
}
if (g->stub_features.qXfer_features_read) {
gdbr_read_target_xml (g);
}
reg_cache_init (g);
return ret;
}