X-Git-Url: https://review.openocd.org/gitweb?a=blobdiff_plain;f=src%2Fserver%2Fgdb_server.c;h=483e5510b115234d5d4243fa5cb8c9e8d7b6a1e7;hb=b43b95e46022d3baf76b44f7be34bbf0e6119594;hp=660e05ef949c3be64c0e38955bfd49ffa921ca22;hpb=4f885215816624df7bc19523ea2da94ca90772f3;p=openocd.git
diff --git a/src/server/gdb_server.c b/src/server/gdb_server.c
index 660e05ef94..483e5510b1 100644
--- a/src/server/gdb_server.c
+++ b/src/server/gdb_server.c
@@ -31,9 +31,7 @@
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
- * along with this program; if not, write to the *
- * Free Software Foundation, Inc., *
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
+ * along with this program. If not, see . *
***************************************************************************/
#ifdef HAVE_CONFIG_H
@@ -92,6 +90,8 @@ struct gdb_connection {
bool attached;
/* temporarily used for target description support */
struct target_desc_format target_desc;
+ /* temporarily used for thread list support */
+ char *thread_list;
};
#if 0
@@ -104,8 +104,8 @@ static int gdb_breakpoint_override;
static enum breakpoint_type gdb_breakpoint_override_type;
static int gdb_error(struct connection *connection, int retval);
-static const char *gdb_port;
-static const char *gdb_port_next;
+static char *gdb_port;
+static char *gdb_port_next;
static void gdb_log_callback(void *priv, const char *file, unsigned line,
const char *function, const char *string);
@@ -617,11 +617,21 @@ static int gdb_get_packet_inner(struct connection *connection,
case '$':
break;
case '+':
- /* gdb sends a dummy ack '+' at every remote connect - see
- * remote_start_remote (remote.c)
- * in case anyone tries to debug why they receive this
- * warning every time */
- LOG_WARNING("acknowledgment received, but no packet pending");
+ /* According to the GDB documentation
+ * (https://sourceware.org/gdb/onlinedocs/gdb/Packet-Acknowledgment.html):
+ * "gdb sends a final `+` acknowledgment of the stub's `OK`
+ * response, which can be safely ignored by the stub."
+ * However OpenOCD server already is in noack mode at this
+ * point and instead of ignoring this it was emitting a
+ * warning. This code makes server ignore the first ACK
+ * that will be received after going into noack mode,
+ * warning only about subsequent ACK's. */
+ if (gdb_con->noack_mode > 1) {
+ LOG_WARNING("acknowledgment received, but no packet pending");
+ } else if (gdb_con->noack_mode) {
+ LOG_DEBUG("Received first acknowledgment after entering noack mode. Ignoring it.");
+ gdb_con->noack_mode = 2;
+ }
break;
case '-':
LOG_WARNING("negative acknowledgment, but no packet pending");
@@ -687,7 +697,8 @@ static int gdb_output_con(struct connection *connection, const char *line)
return ERROR_GDB_BUFFER_TOO_SMALL;
hex_buffer[0] = 'O';
- int pkt_len = hexify(hex_buffer + 1, line, bin_size, bin_size * 2 + 1);
+ size_t pkt_len = hexify(hex_buffer + 1, (const uint8_t *)line, bin_size,
+ bin_size * 2 + 1);
int retval = gdb_put_packet(connection, hex_buffer, pkt_len + 1);
free(hex_buffer);
@@ -704,11 +715,14 @@ static int gdb_output(struct command_context *context, const char *line)
static void gdb_signal_reply(struct target *target, struct connection *connection)
{
struct gdb_connection *gdb_connection = connection->priv;
- char sig_reply[20];
+ char sig_reply[45];
char stop_reason[20];
+ char current_thread[25];
int sig_reply_len;
int signal_var;
+ rtos_update_threads(target);
+
if (target->debug_reason == DBG_REASON_EXIT) {
sig_reply_len = snprintf(sig_reply, sizeof(sig_reply), "W00");
} else {
@@ -721,22 +735,22 @@ static void gdb_signal_reply(struct target *target, struct connection *connectio
stop_reason[0] = '\0';
if (target->debug_reason == DBG_REASON_WATCHPOINT) {
enum watchpoint_rw hit_wp_type;
- uint32_t hit_wp_address;
+ target_addr_t hit_wp_address;
if (watchpoint_hit(target, &hit_wp_type, &hit_wp_address) == ERROR_OK) {
switch (hit_wp_type) {
case WPT_WRITE:
snprintf(stop_reason, sizeof(stop_reason),
- "watch:%08x;", hit_wp_address);
+ "watch:%08" TARGET_PRIxADDR ";", hit_wp_address);
break;
case WPT_READ:
snprintf(stop_reason, sizeof(stop_reason),
- "rwatch:%08x;", hit_wp_address);
+ "rwatch:%08" TARGET_PRIxADDR ";", hit_wp_address);
break;
case WPT_ACCESS:
snprintf(stop_reason, sizeof(stop_reason),
- "awatch:%08x;", hit_wp_address);
+ "awatch:%08" TARGET_PRIxADDR ";", hit_wp_address);
break;
default:
break;
@@ -744,13 +758,18 @@ static void gdb_signal_reply(struct target *target, struct connection *connectio
}
}
- sig_reply_len = snprintf(sig_reply, sizeof(sig_reply), "T%2.2x%s",
- signal_var, stop_reason);
+ current_thread[0] = '\0';
+ if (target->rtos != NULL) {
+ snprintf(current_thread, sizeof(current_thread), "thread:%016" PRIx64 ";", target->rtos->current_thread);
+ target->rtos->current_threadid = target->rtos->current_thread;
+ }
+
+ sig_reply_len = snprintf(sig_reply, sizeof(sig_reply), "T%2.2x%s%s",
+ signal_var, stop_reason, current_thread);
}
gdb_put_packet(connection, sig_reply, sig_reply_len);
gdb_connection->frontend_state = TARGET_HALTED;
- rtos_update_threads(target);
}
static void gdb_fileio_reply(struct target *target, struct connection *connection)
@@ -761,64 +780,64 @@ static void gdb_fileio_reply(struct target *target, struct connection *connectio
bool program_exited = false;
if (strcmp(target->fileio_info->identifier, "open") == 0)
- sprintf(fileio_command, "F%s,%x/%x,%x,%x", target->fileio_info->identifier,
+ sprintf(fileio_command, "F%s,%" PRIx32 "/%" PRIx32 ",%" PRIx32 ",%" PRIx32, target->fileio_info->identifier,
target->fileio_info->param_1,
target->fileio_info->param_2,
target->fileio_info->param_3,
target->fileio_info->param_4);
else if (strcmp(target->fileio_info->identifier, "close") == 0)
- sprintf(fileio_command, "F%s,%x", target->fileio_info->identifier,
+ sprintf(fileio_command, "F%s,%" PRIx32, target->fileio_info->identifier,
target->fileio_info->param_1);
else if (strcmp(target->fileio_info->identifier, "read") == 0)
- sprintf(fileio_command, "F%s,%x,%x,%x", target->fileio_info->identifier,
+ sprintf(fileio_command, "F%s,%" PRIx32 ",%" PRIx32 ",%" PRIx32, target->fileio_info->identifier,
target->fileio_info->param_1,
target->fileio_info->param_2,
target->fileio_info->param_3);
else if (strcmp(target->fileio_info->identifier, "write") == 0)
- sprintf(fileio_command, "F%s,%x,%x,%x", target->fileio_info->identifier,
+ sprintf(fileio_command, "F%s,%" PRIx32 ",%" PRIx32 ",%" PRIx32, target->fileio_info->identifier,
target->fileio_info->param_1,
target->fileio_info->param_2,
target->fileio_info->param_3);
else if (strcmp(target->fileio_info->identifier, "lseek") == 0)
- sprintf(fileio_command, "F%s,%x,%x,%x", target->fileio_info->identifier,
+ sprintf(fileio_command, "F%s,%" PRIx32 ",%" PRIx32 ",%" PRIx32, target->fileio_info->identifier,
target->fileio_info->param_1,
target->fileio_info->param_2,
target->fileio_info->param_3);
else if (strcmp(target->fileio_info->identifier, "rename") == 0)
- sprintf(fileio_command, "F%s,%x/%x,%x/%x", target->fileio_info->identifier,
+ sprintf(fileio_command, "F%s,%" PRIx32 "/%" PRIx32 ",%" PRIx32 "/%" PRIx32, target->fileio_info->identifier,
target->fileio_info->param_1,
target->fileio_info->param_2,
target->fileio_info->param_3,
target->fileio_info->param_4);
else if (strcmp(target->fileio_info->identifier, "unlink") == 0)
- sprintf(fileio_command, "F%s,%x/%x", target->fileio_info->identifier,
+ sprintf(fileio_command, "F%s,%" PRIx32 "/%" PRIx32, target->fileio_info->identifier,
target->fileio_info->param_1,
target->fileio_info->param_2);
else if (strcmp(target->fileio_info->identifier, "stat") == 0)
- sprintf(fileio_command, "F%s,%x/%x,%x", target->fileio_info->identifier,
+ sprintf(fileio_command, "F%s,%" PRIx32 "/%" PRIx32 ",%" PRIx32, target->fileio_info->identifier,
target->fileio_info->param_1,
target->fileio_info->param_2,
target->fileio_info->param_3);
else if (strcmp(target->fileio_info->identifier, "fstat") == 0)
- sprintf(fileio_command, "F%s,%x,%x", target->fileio_info->identifier,
+ sprintf(fileio_command, "F%s,%" PRIx32 ",%" PRIx32, target->fileio_info->identifier,
target->fileio_info->param_1,
target->fileio_info->param_2);
else if (strcmp(target->fileio_info->identifier, "gettimeofday") == 0)
- sprintf(fileio_command, "F%s,%x,%x", target->fileio_info->identifier,
+ sprintf(fileio_command, "F%s,%" PRIx32 ",%" PRIx32, target->fileio_info->identifier,
target->fileio_info->param_1,
target->fileio_info->param_2);
else if (strcmp(target->fileio_info->identifier, "isatty") == 0)
- sprintf(fileio_command, "F%s,%x", target->fileio_info->identifier,
+ sprintf(fileio_command, "F%s,%" PRIx32, target->fileio_info->identifier,
target->fileio_info->param_1);
else if (strcmp(target->fileio_info->identifier, "system") == 0)
- sprintf(fileio_command, "F%s,%x/%x", target->fileio_info->identifier,
+ sprintf(fileio_command, "F%s,%" PRIx32 "/%" PRIx32, target->fileio_info->identifier,
target->fileio_info->param_1,
target->fileio_info->param_2);
else if (strcmp(target->fileio_info->identifier, "exit") == 0) {
/* If target hits exit syscall, report to GDB the program is terminated.
* In addition, let target run its own exit syscall handler. */
program_exited = true;
- sprintf(fileio_command, "W%02x", target->fileio_info->param_1);
+ sprintf(fileio_command, "W%02" PRIx32, target->fileio_info->param_1);
} else {
LOG_DEBUG("Unknown syscall: %s", target->fileio_info->identifier);
@@ -918,6 +937,7 @@ static int gdb_new_connection(struct connection *connection)
gdb_connection->attached = true;
gdb_connection->target_desc.tdesc = NULL;
gdb_connection->target_desc.tdesc_length = 0;
+ gdb_connection->thread_list = NULL;
/* send ACK to GDB for debug request */
gdb_write(connection, "+", 1);
@@ -957,6 +977,9 @@ static int gdb_new_connection(struct connection *connection)
int i;
for (i = 0; i < flash_get_bank_count(); i++) {
struct flash_bank *p;
+ p = get_flash_bank_by_num_noprobe(i);
+ if (p->target != gdb_service->target)
+ continue;
retval = get_flash_bank_by_num(i, &p);
if (retval != ERROR_OK) {
LOG_ERROR("Connect failed. Consider setting up a gdb-attach event for the target " \
@@ -1031,7 +1054,7 @@ static void gdb_send_error(struct connection *connection, uint8_t the_error)
}
static int gdb_last_signal_packet(struct connection *connection,
- char *packet, int packet_size)
+ char const *packet, int packet_size)
{
struct target *target = get_target_from_connection(connection);
struct gdb_connection *gdb_con = connection->priv;
@@ -1088,7 +1111,7 @@ static void gdb_str_to_target(struct target *target,
/* copy over in register buffer */
static void gdb_target_to_reg(struct target *target,
- char *tstr, int str_len, uint8_t *bin)
+ char const *tstr, int str_len, uint8_t *bin)
{
if (str_len % 2) {
LOG_ERROR("BUG: gdb value with uneven number of characters encountered");
@@ -1109,7 +1132,7 @@ static void gdb_target_to_reg(struct target *target,
}
static int gdb_get_registers_packet(struct connection *connection,
- char *packet, int packet_size)
+ char const *packet, int packet_size)
{
struct target *target = get_target_from_connection(connection);
struct reg **reg_list;
@@ -1138,6 +1161,9 @@ static int gdb_get_registers_packet(struct connection *connection,
assert(reg_packet_size > 0);
reg_packet = malloc(reg_packet_size + 1); /* plus one for string termination null */
+ if (reg_packet == NULL)
+ return ERROR_FAIL;
+
reg_packet_p = reg_packet;
for (i = 0; i < reg_list_size; i++) {
@@ -1165,14 +1191,14 @@ static int gdb_get_registers_packet(struct connection *connection,
}
static int gdb_set_registers_packet(struct connection *connection,
- char *packet, int packet_size)
+ char const *packet, int packet_size)
{
struct target *target = get_target_from_connection(connection);
int i;
struct reg **reg_list;
int reg_list_size;
int retval;
- char *packet_p;
+ char const *packet_p;
#ifdef _DEBUG_GDB_IO_
LOG_DEBUG("-");
@@ -1220,7 +1246,7 @@ static int gdb_set_registers_packet(struct connection *connection,
}
static int gdb_get_register_packet(struct connection *connection,
- char *packet, int packet_size)
+ char const *packet, int packet_size)
{
struct target *target = get_target_from_connection(connection);
char *reg_packet;
@@ -1259,7 +1285,7 @@ static int gdb_get_register_packet(struct connection *connection,
}
static int gdb_set_register_packet(struct connection *connection,
- char *packet, int packet_size)
+ char const *packet, int packet_size)
{
struct target *target = get_target_from_connection(connection);
char *separator;
@@ -1325,11 +1351,11 @@ static int gdb_error(struct connection *connection, int retval)
* 8191 bytes by the looks of it. Why 8191 bytes instead of 8192?????
*/
static int gdb_read_memory_packet(struct connection *connection,
- char *packet, int packet_size)
+ char const *packet, int packet_size)
{
struct target *target = get_target_from_connection(connection);
char *separator;
- uint32_t addr = 0;
+ uint64_t addr = 0;
uint32_t len = 0;
uint8_t *buffer;
@@ -1340,7 +1366,7 @@ static int gdb_read_memory_packet(struct connection *connection,
/* skip command character */
packet++;
- addr = strtoul(packet, &separator, 16);
+ addr = strtoull(packet, &separator, 16);
if (*separator != ',') {
LOG_ERROR("incomplete read memory packet received, dropping connection");
@@ -1349,9 +1375,15 @@ static int gdb_read_memory_packet(struct connection *connection,
len = strtoul(separator + 1, NULL, 16);
+ if (!len) {
+ LOG_WARNING("invalid read memory packet received (len == 0)");
+ gdb_put_packet(connection, NULL, 0);
+ return ERROR_OK;
+ }
+
buffer = malloc(len);
- LOG_DEBUG("addr: 0x%8.8" PRIx32 ", len: 0x%8.8" PRIx32 "", addr, len);
+ LOG_DEBUG("addr: 0x%16.16" PRIx64 ", len: 0x%8.8" PRIx32 "", addr, len);
retval = target_read_buffer(target, addr, len, buffer);
@@ -1376,7 +1408,7 @@ static int gdb_read_memory_packet(struct connection *connection,
if (retval == ERROR_OK) {
hex_buffer = malloc(len * 2 + 1);
- int pkt_len = hexify(hex_buffer, (char *)buffer, len, len * 2 + 1);
+ size_t pkt_len = hexify(hex_buffer, buffer, len, len * 2 + 1);
gdb_put_packet(connection, hex_buffer, pkt_len);
@@ -1390,11 +1422,11 @@ static int gdb_read_memory_packet(struct connection *connection,
}
static int gdb_write_memory_packet(struct connection *connection,
- char *packet, int packet_size)
+ char const *packet, int packet_size)
{
struct target *target = get_target_from_connection(connection);
char *separator;
- uint32_t addr = 0;
+ uint64_t addr = 0;
uint32_t len = 0;
uint8_t *buffer;
@@ -1403,7 +1435,7 @@ static int gdb_write_memory_packet(struct connection *connection,
/* skip command character */
packet++;
- addr = strtoul(packet, &separator, 16);
+ addr = strtoull(packet, &separator, 16);
if (*separator != ',') {
LOG_ERROR("incomplete write memory packet received, dropping connection");
@@ -1419,9 +1451,9 @@ static int gdb_write_memory_packet(struct connection *connection,
buffer = malloc(len);
- LOG_DEBUG("addr: 0x%8.8" PRIx32 ", len: 0x%8.8" PRIx32 "", addr, len);
+ LOG_DEBUG("addr: 0x%" PRIx64 ", len: 0x%8.8" PRIx32 "", addr, len);
- if (unhexify((char *)buffer, separator, len) != (int)len)
+ if (unhexify(buffer, separator, len) != len)
LOG_ERROR("unable to decode memory packet");
retval = target_write_buffer(target, addr, len, buffer);
@@ -1437,19 +1469,23 @@ static int gdb_write_memory_packet(struct connection *connection,
}
static int gdb_write_memory_binary_packet(struct connection *connection,
- char *packet, int packet_size)
+ char const *packet, int packet_size)
{
struct target *target = get_target_from_connection(connection);
char *separator;
- uint32_t addr = 0;
+ uint64_t addr = 0;
uint32_t len = 0;
int retval = ERROR_OK;
+ /* Packets larger than fast_limit bytes will be acknowledged instantly on
+ * the assumption that we're in a download and it's important to go as fast
+ * as possible. */
+ uint32_t fast_limit = 8;
/* skip command character */
packet++;
- addr = strtoul(packet, &separator, 16);
+ addr = strtoull(packet, &separator, 16);
if (*separator != ',') {
LOG_ERROR("incomplete write memory binary packet received, dropping connection");
@@ -1465,48 +1501,60 @@ static int gdb_write_memory_binary_packet(struct connection *connection,
struct gdb_connection *gdb_connection = connection->priv;
- if (gdb_connection->mem_write_error) {
+ if (gdb_connection->mem_write_error)
retval = ERROR_FAIL;
- /* now that we have reported the memory write error, we can clear the condition */
- gdb_connection->mem_write_error = false;
- }
- /* By replying the packet *immediately* GDB will send us a new packet
- * while we write the last one to the target.
- */
- if (retval == ERROR_OK)
- gdb_put_packet(connection, "OK", 2);
- else {
+ if (retval == ERROR_OK) {
+ if (len >= fast_limit) {
+ /* By replying the packet *immediately* GDB will send us a new packet
+ * while we write the last one to the target.
+ * We only do this for larger writes, so that users who do something like:
+ * p *((int*)0xdeadbeef)=8675309
+ * will get immediate feedback that that write failed.
+ */
+ gdb_put_packet(connection, "OK", 2);
+ }
+ } else {
retval = gdb_error(connection, retval);
+ /* now that we have reported the memory write error, we can clear the condition */
+ gdb_connection->mem_write_error = false;
if (retval != ERROR_OK)
return retval;
}
if (len) {
- LOG_DEBUG("addr: 0x%8.8" PRIx32 ", len: 0x%8.8" PRIx32 "", addr, len);
+ LOG_DEBUG("addr: 0x%" PRIx64 ", len: 0x%8.8" PRIx32 "", addr, len);
retval = target_write_buffer(target, addr, len, (uint8_t *)separator);
if (retval != ERROR_OK)
gdb_connection->mem_write_error = true;
}
+ if (len < fast_limit) {
+ if (retval != ERROR_OK) {
+ gdb_error(connection, retval);
+ gdb_connection->mem_write_error = false;
+ } else {
+ gdb_put_packet(connection, "OK", 2);
+ }
+ }
+
return ERROR_OK;
}
static int gdb_step_continue_packet(struct connection *connection,
- char *packet, int packet_size)
+ char const *packet, int packet_size)
{
struct target *target = get_target_from_connection(connection);
int current = 0;
- uint32_t address = 0x0;
+ uint64_t address = 0x0;
int retval = ERROR_OK;
LOG_DEBUG("-");
- if (packet_size > 1) {
- packet[packet_size] = 0;
- address = strtoul(packet + 1, NULL, 16);
- } else
+ if (packet_size > 1)
+ address = strtoull(packet + 1, NULL, 16);
+ else
current = 1;
gdb_running_type = packet[0];
@@ -1523,13 +1571,13 @@ static int gdb_step_continue_packet(struct connection *connection,
}
static int gdb_breakpoint_watchpoint_packet(struct connection *connection,
- char *packet, int packet_size)
+ char const *packet, int packet_size)
{
struct target *target = get_target_from_connection(connection);
int type;
enum breakpoint_type bp_type = BKPT_SOFT /* dummy init to avoid warning */;
enum watchpoint_rw wp_type = WPT_READ /* dummy init to avoid warning */;
- uint32_t address;
+ uint64_t address;
uint32_t size;
char *separator;
int retval;
@@ -1561,7 +1609,7 @@ static int gdb_breakpoint_watchpoint_packet(struct connection *connection,
return ERROR_SERVER_REMOTE_CLOSED;
}
- address = strtoul(separator + 1, &separator, 16);
+ address = strtoull(separator + 1, &separator, 16);
if (*separator != ',') {
LOG_ERROR("incomplete breakpoint/watchpoint packet received, dropping connection");
@@ -1651,29 +1699,31 @@ static void xml_printf(int *retval, char **xml, int *pos, int *size,
}
}
-static int decode_xfer_read(char *buf, char **annex, int *ofs, unsigned int *len)
+static int decode_xfer_read(char const *buf, char **annex, int *ofs, unsigned int *len)
{
- char *separator;
-
- /* Extract and NUL-terminate the annex. */
- *annex = buf;
- while (*buf && *buf != ':')
- buf++;
- if (*buf == '\0')
- return -1;
- *buf++ = 0;
+ /* Locate the annex. */
+ const char *annex_end = strchr(buf, ':');
+ if (annex_end == NULL)
+ return ERROR_FAIL;
/* After the read marker and annex, qXfer looks like a
* traditional 'm' packet. */
-
- *ofs = strtoul(buf, &separator, 16);
+ char *separator;
+ *ofs = strtoul(annex_end + 1, &separator, 16);
if (*separator != ',')
- return -1;
+ return ERROR_FAIL;
*len = strtoul(separator + 1, NULL, 16);
- return 0;
+ /* Extract the annex if needed */
+ if (annex != NULL) {
+ *annex = strndup(buf, annex_end - buf);
+ if (*annex == NULL)
+ return ERROR_FAIL;
+ }
+
+ return ERROR_OK;
}
static int compare_bank(const void *a, const void *b)
@@ -1691,7 +1741,7 @@ static int compare_bank(const void *a, const void *b)
}
static int gdb_memory_map(struct connection *connection,
- char *packet, int packet_size)
+ char const *packet, int packet_size)
{
/* We get away with only specifying flash here. Regions that are not
* specified are treated as if we provided no memory map(if not we
@@ -1732,14 +1782,16 @@ static int gdb_memory_map(struct connection *connection,
banks = malloc(sizeof(struct flash_bank *)*flash_get_bank_count());
for (i = 0; i < flash_get_bank_count(); i++) {
+ p = get_flash_bank_by_num_noprobe(i);
+ if (p->target != target)
+ continue;
retval = get_flash_bank_by_num(i, &p);
if (retval != ERROR_OK) {
free(banks);
gdb_error(connection, retval);
return retval;
}
- if (p->target == target)
- banks[target_flash_banks++] = p;
+ banks[target_flash_banks++] = p;
}
qsort(banks, target_flash_banks, sizeof(struct flash_bank *),
@@ -1976,7 +2028,7 @@ static int gdb_generate_reg_type_description(struct target *target,
/* Get a list of available target registers features. feature_list must
* be freed by caller.
*/
-static int get_reg_features_list(struct target *target, char **feature_list[], int *feature_list_size,
+static int get_reg_features_list(struct target *target, char const **feature_list[], int *feature_list_size,
struct reg **reg_list, int reg_list_size)
{
int tbl_sz = 0;
@@ -1988,7 +2040,8 @@ static int get_reg_features_list(struct target *target, char **feature_list[], i
if (reg_list[i]->exist == false)
continue;
- if ((reg_list[i]->feature->name != NULL)
+ if (reg_list[i]->feature != NULL
+ && reg_list[i]->feature->name != NULL
&& (strcmp(reg_list[i]->feature->name, ""))) {
/* We found a feature, check if the feature is already in the
* table. If not, allocate a new entry for the table and
@@ -1996,7 +2049,7 @@ static int get_reg_features_list(struct target *target, char **feature_list[], i
*/
for (int j = 0; j < (tbl_sz + 1); j++) {
if (!((*feature_list)[j])) {
- (*feature_list)[tbl_sz++] = strdup(reg_list[i]->feature->name);
+ (*feature_list)[tbl_sz++] = reg_list[i]->feature->name;
*feature_list = realloc(*feature_list, sizeof(char *) * (tbl_sz + 1));
(*feature_list)[tbl_sz] = NULL;
break;
@@ -2017,8 +2070,10 @@ static int get_reg_features_list(struct target *target, char **feature_list[], i
static int gdb_generate_target_description(struct target *target, char **tdesc_out)
{
int retval = ERROR_OK;
- struct reg **reg_list;
+ struct reg **reg_list = NULL;
int reg_list_size;
+ char const **features = NULL;
+ int feature_list_size = 0;
char *tdesc = NULL;
int pos = 0;
int size = 0;
@@ -2028,21 +2083,22 @@ static int gdb_generate_target_description(struct target *target, char **tdesc_o
if (retval != ERROR_OK) {
LOG_ERROR("get register list failed");
- return ERROR_FAIL;
+ retval = ERROR_FAIL;
+ goto error;
}
if (reg_list_size <= 0) {
- free(reg_list);
- return ERROR_FAIL;
+ LOG_ERROR("get register list failed");
+ retval = ERROR_FAIL;
+ goto error;
}
- char **features = NULL;
/* Get a list of available target registers features */
- retval = get_reg_features_list(target, &features, NULL, reg_list, reg_list_size);
+ retval = get_reg_features_list(target, &features, &feature_list_size, reg_list, reg_list_size);
if (retval != ERROR_OK) {
LOG_ERROR("Can't get the registers feature list");
- free(reg_list);
- return ERROR_FAIL;
+ retval = ERROR_FAIL;
+ goto error;
}
/* If we found some features associated with registers, create sections */
@@ -2122,8 +2178,9 @@ static int gdb_generate_target_description(struct target *target, char **tdesc_o
xml_printf(&retval, &tdesc, &pos, &size,
"\n");
- free(reg_list);
+error:
free(features);
+ free(reg_list);
if (retval == ERROR_OK)
*tdesc_out = tdesc;
@@ -2192,6 +2249,7 @@ static int gdb_target_description_supported(struct target *target, int *supporte
int retval = ERROR_OK;
struct reg **reg_list = NULL;
int reg_list_size = 0;
+ char const **features = NULL;
int feature_list_size = 0;
retval = target_get_gdb_reg_list(target, ®_list,
@@ -2202,11 +2260,11 @@ static int gdb_target_description_supported(struct target *target, int *supporte
}
if (reg_list_size <= 0) {
+ LOG_ERROR("get register list failed");
retval = ERROR_FAIL;
goto error;
}
- char **features = NULL;
/* Get a list of available target registers features */
retval = get_reg_features_list(target, &features, &feature_list_size, reg_list, reg_list_size);
if (retval != ERROR_OK) {
@@ -2222,17 +2280,104 @@ static int gdb_target_description_supported(struct target *target, int *supporte
}
error:
- if (reg_list != NULL)
- free(reg_list);
+ free(features);
+
+ free(reg_list);
+
+ return retval;
+}
+
+static int gdb_generate_thread_list(struct target *target, char **thread_list_out)
+{
+ struct rtos *rtos = target->rtos;
+ int retval = ERROR_OK;
+ char *thread_list = NULL;
+ int pos = 0;
+ int size = 0;
+
+ xml_printf(&retval, &thread_list, &pos, &size,
+ "\n"
+ "\n");
+
+ if (rtos != NULL) {
+ for (int i = 0; i < rtos->thread_count; i++) {
+ struct thread_detail *thread_detail = &rtos->thread_details[i];
- if (features != NULL)
- free(features);
+ if (!thread_detail->exists)
+ continue;
+
+ xml_printf(&retval, &thread_list, &pos, &size,
+ "", thread_detail->threadid);
+
+ if (thread_detail->thread_name_str != NULL)
+ xml_printf(&retval, &thread_list, &pos, &size,
+ "Name: %s", thread_detail->thread_name_str);
+
+ if (thread_detail->extra_info_str != NULL) {
+ if (thread_detail->thread_name_str != NULL)
+ xml_printf(&retval, &thread_list, &pos, &size,
+ ", ");
+ xml_printf(&retval, &thread_list, &pos, &size,
+ thread_detail->extra_info_str);
+ }
+
+ xml_printf(&retval, &thread_list, &pos, &size,
+ "\n");
+ }
+ }
+
+ xml_printf(&retval, &thread_list, &pos, &size,
+ "\n");
+
+ if (retval == ERROR_OK)
+ *thread_list_out = thread_list;
+ else
+ free(thread_list);
return retval;
}
+static int gdb_get_thread_list_chunk(struct target *target, char **thread_list,
+ char **chunk, int32_t offset, uint32_t length)
+{
+ if (*thread_list == NULL) {
+ int retval = gdb_generate_thread_list(target, thread_list);
+ if (retval != ERROR_OK) {
+ LOG_ERROR("Unable to Generate Thread List");
+ return ERROR_FAIL;
+ }
+ }
+
+ size_t thread_list_length = strlen(*thread_list);
+ char transfer_type;
+
+ length = MIN(length, thread_list_length - offset);
+ if (length < (thread_list_length - offset))
+ transfer_type = 'm';
+ else
+ transfer_type = 'l';
+
+ *chunk = malloc(length + 2);
+ if (*chunk == NULL) {
+ LOG_ERROR("Unable to allocate memory");
+ return ERROR_FAIL;
+ }
+
+ (*chunk)[0] = transfer_type;
+ strncpy((*chunk) + 1, (*thread_list) + offset, length);
+ (*chunk)[1 + length] = '\0';
+
+ /* After gdb-server sends out last chunk, invalidate thread list. */
+ if (transfer_type == 'l') {
+ free(*thread_list);
+ *thread_list = NULL;
+ }
+
+ return ERROR_OK;
+}
+
static int gdb_query_packet(struct connection *connection,
- char *packet, int packet_size)
+ char const *packet, int packet_size)
{
struct command_context *cmd_ctx = connection->cmd_ctx;
struct gdb_connection *gdb_connection = connection->priv;
@@ -2242,7 +2387,7 @@ static int gdb_query_packet(struct connection *connection,
if (packet_size > 6) {
char *cmd;
cmd = malloc((packet_size - 6) / 2 + 1);
- int len = unhexify(cmd, packet + 6, (packet_size - 6) / 2);
+ size_t len = unhexify((uint8_t *)cmd, packet + 6, (packet_size - 6) / 2);
cmd[len] = 0;
/* We want to print all debug output to GDB connection */
@@ -2320,7 +2465,7 @@ static int gdb_query_packet(struct connection *connection,
&buffer,
&pos,
&size,
- "PacketSize=%x;qXfer:memory-map:read%c;qXfer:features:read%c;QStartNoAckMode+",
+ "PacketSize=%x;qXfer:memory-map:read%c;qXfer:features:read%c;qXfer:threads:read+;QStartNoAckMode+",
(GDB_BUFFER_SIZE - 1),
((gdb_use_memory_map == 1) && (flash_get_bank_count() > 0)) ? '+' : '-',
(gdb_target_desc_supported == 1) ? '+' : '-');
@@ -2343,12 +2488,11 @@ static int gdb_query_packet(struct connection *connection,
int offset;
unsigned int length;
- char *annex;
/* skip command character */
packet += 20;
- if (decode_xfer_read(packet, &annex, &offset, &length) < 0) {
+ if (decode_xfer_read(packet, NULL, &offset, &length) < 0) {
gdb_send_error(connection, 01);
return ERROR_OK;
}
@@ -2367,6 +2511,37 @@ static int gdb_query_packet(struct connection *connection,
gdb_put_packet(connection, xml, strlen(xml));
+ free(xml);
+ return ERROR_OK;
+ } else if (strncmp(packet, "qXfer:threads:read:", 19) == 0) {
+ char *xml = NULL;
+ int retval = ERROR_OK;
+
+ int offset;
+ unsigned int length;
+
+ /* skip command character */
+ packet += 19;
+
+ if (decode_xfer_read(packet, NULL, &offset, &length) < 0) {
+ gdb_send_error(connection, 01);
+ return ERROR_OK;
+ }
+
+ /* Target should prepare correct thread list for annex.
+ * The first character of returned xml is 'm' or 'l'. 'm' for
+ * there are *more* chunks to transfer. 'l' for it is the *last*
+ * chunk of target description.
+ */
+ retval = gdb_get_thread_list_chunk(target, &gdb_connection->thread_list,
+ &xml, offset, length);
+ if (retval != ERROR_OK) {
+ gdb_error(connection, retval);
+ return retval;
+ }
+
+ gdb_put_packet(connection, xml, strlen(xml));
+
free(xml);
return ERROR_OK;
} else if (strncmp(packet, "QStartNoAckMode", 15) == 0) {
@@ -2380,7 +2555,7 @@ static int gdb_query_packet(struct connection *connection,
}
static int gdb_v_packet(struct connection *connection,
- char *packet, int packet_size)
+ char const *packet, int packet_size)
{
struct gdb_connection *gdb_connection = connection->priv;
struct gdb_service *gdb_service = connection->service->priv;
@@ -2397,20 +2572,20 @@ static int gdb_v_packet(struct connection *connection,
unsigned long addr;
unsigned long length;
- char *parse = packet + 12;
+ char const *parse = packet + 12;
if (*parse == '\0') {
LOG_ERROR("incomplete vFlashErase packet received, dropping connection");
return ERROR_SERVER_REMOTE_CLOSED;
}
- addr = strtoul(parse, &parse, 16);
+ addr = strtoul(parse, (char **)&parse, 16);
if (*(parse++) != ',' || *parse == '\0') {
LOG_ERROR("incomplete vFlashErase packet received, dropping connection");
return ERROR_SERVER_REMOTE_CLOSED;
}
- length = strtoul(parse, &parse, 16);
+ length = strtoul(parse, (char **)&parse, 16);
if (*parse != '\0') {
LOG_ERROR("incomplete vFlashErase packet received, dropping connection");
@@ -2453,13 +2628,13 @@ static int gdb_v_packet(struct connection *connection,
int retval;
unsigned long addr;
unsigned long length;
- char *parse = packet + 12;
+ char const *parse = packet + 12;
if (*parse == '\0') {
LOG_ERROR("incomplete vFlashErase packet received, dropping connection");
return ERROR_SERVER_REMOTE_CLOSED;
}
- addr = strtoul(parse, &parse, 16);
+ addr = strtoul(parse, (char **)&parse, 16);
if (*(parse++) != ':') {
LOG_ERROR("incomplete vFlashErase packet received, dropping connection");
return ERROR_SERVER_REMOTE_CLOSED;
@@ -2474,7 +2649,7 @@ static int gdb_v_packet(struct connection *connection,
/* create new section with content from packet buffer */
retval = image_add_section(gdb_connection->vflash_image,
- addr, length, 0x0, (uint8_t *)parse);
+ addr, length, 0x0, (uint8_t const *)parse);
if (retval != ERROR_OK)
return retval;
@@ -2526,7 +2701,7 @@ static int gdb_detach(struct connection *connection)
* Fretcode,errno,Ctrl-C flag;call-specific attachment
*/
static int gdb_fileio_response_packet(struct connection *connection,
- char *packet, int packet_size)
+ char const *packet, int packet_size)
{
struct target *target = get_target_from_connection(connection);
char *separator;
@@ -2598,7 +2773,7 @@ static int gdb_input_inner(struct connection *connection)
struct gdb_service *gdb_service = connection->service->priv;
struct target *target = gdb_service->target;
- char *packet = gdb_packet_buffer;
+ char const *packet = gdb_packet_buffer;
int packet_size;
int retval;
struct gdb_connection *gdb_con = connection->priv;
@@ -2617,12 +2792,12 @@ static int gdb_input_inner(struct connection *connection)
*/
do {
packet_size = GDB_BUFFER_SIZE-1;
- retval = gdb_get_packet(connection, packet, &packet_size);
+ retval = gdb_get_packet(connection, gdb_packet_buffer, &packet_size);
if (retval != ERROR_OK)
return retval;
/* terminate with zero */
- packet[packet_size] = 0;
+ gdb_packet_buffer[packet_size] = '\0';
if (LOG_LEVEL_IS(LOG_LVL_DEBUG)) {
if (packet[0] == 'X') {
@@ -2887,6 +3062,11 @@ static int gdb_target_start(struct target *target, const char *port)
static int gdb_target_add_one(struct target *target)
{
+ if (strcmp(gdb_port, "disabled") == 0) {
+ LOG_INFO("gdb port disabled");
+ return ERROR_OK;
+ }
+
/* one gdb instance per smp list */
if ((target->smp) && (target->gdb_service))
return ERROR_OK;
@@ -2900,7 +3080,7 @@ static int gdb_target_add_one(struct target *target)
portnumber = strtol(gdb_port_next, &end, 0);
if (!*end) {
if (parse_long(gdb_port_next, &portnumber) == ERROR_OK) {
- free((void *)gdb_port_next);
+ free(gdb_port_next);
gdb_port_next = alloc_printf("%d", portnumber+1);
}
}
@@ -2910,6 +3090,11 @@ static int gdb_target_add_one(struct target *target)
int gdb_target_add_all(struct target *target)
{
+ if (strcmp(gdb_port, "disabled") == 0) {
+ LOG_INFO("gdb server disabled");
+ return ERROR_OK;
+ }
+
if (NULL == target) {
LOG_WARNING("gdb services need one or more targets defined");
return ERROR_OK;
@@ -2947,7 +3132,7 @@ COMMAND_HANDLER(handle_gdb_port_command)
{
int retval = CALL_COMMAND_HANDLER(server_pipe_command, &gdb_port);
if (ERROR_OK == retval) {
- free((void *)gdb_port_next);
+ free(gdb_port_next);
gdb_port_next = strdup(gdb_port);
}
return retval;
@@ -3027,7 +3212,7 @@ COMMAND_HANDLER(handle_gdb_save_tdesc_command)
tdesc_length = strlen(tdesc);
- struct fileio fileio;
+ struct fileio *fileio;
size_t size_written;
char *tdesc_filename = alloc_printf("%s.xml", target_type_name(target));
@@ -3043,9 +3228,9 @@ COMMAND_HANDLER(handle_gdb_save_tdesc_command)
goto out;
}
- retval = fileio_write(&fileio, tdesc_length, tdesc, &size_written);
+ retval = fileio_write(fileio, tdesc_length, tdesc, &size_written);
- fileio_close(&fileio);
+ fileio_close(fileio);
if (retval != ERROR_OK)
LOG_ERROR("Error while writing the tdesc file");
@@ -3075,7 +3260,7 @@ static const struct command_registration gdb_command_handlers[] = {
"server listens for the next port number after the "
"base port number specified. "
"No arguments reports GDB port. \"pipe\" means listen to stdin "
- "output to stdout, an integer is base port number, \"disable\" disables "
+ "output to stdout, an integer is base port number, \"disabled\" disables "
"port. Any other string is are interpreted as named pipe to listen to. "
"Output pipe is the same name as input pipe, but with 'o' appended.",
.usage = "[port_num]",