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-rw-r--r--src/server/gdb_server.c35
-rw-r--r--src/target/target.c83
2 files changed, 60 insertions, 58 deletions
diff --git a/src/server/gdb_server.c b/src/server/gdb_server.c
index f01d638f..ce45f298 100644
--- a/src/server/gdb_server.c
+++ b/src/server/gdb_server.c
@@ -678,25 +678,23 @@ int gdb_new_connection(connection_t *connection)
/* register callback to be informed about target events */
target_register_event_callback(gdb_target_callback_event_handler, connection);
- /* a gdb session just attached, try to put the target in halt mode
- * or alterantively try to issue a reset.
- *
- * GDB connection will fail if e.g. register read packets fail,
- * otherwise resetting/halting the target could have been left to GDB init
- * scripts
+ /* a gdb session just attached, try to put the target in halt mode.
*
* DANGER!!!!
- * We need a synchronous halt, lest connect will fail.
- * Also there is no guarantee that poll() will be invoked
- * between here and serving the first packet, so the halt()
- * statement above is *NOT* sufficient
+ *
+ * If the halt fails(e.g. target needs a reset, JTAG communication not
+ * working, etc.), then the GDB connect will succeed as
+ * the get_gdb_reg_list() will lie and return a register list with
+ * dummy values.
+ *
+ * This allows GDB monitor commands to be run from a GDB init script to
+ * initialize the target
+ *
+ * Also, since the halt() is asynchronous target connect will be
+ * instantaneous and thus avoiding annoying timeout problems during
+ * connect.
*/
- if ((retval = gdb_service->target->type->halt(gdb_service->target)) != ERROR_OK)
- {
- ERROR("error(%d) when trying to halt target, falling back to \"reset\"", retval);
- command_run_line(connection->cmd_ctx, "reset");
- }
- command_run_line(connection->cmd_ctx, "halt");
+ gdb_service->target->type->halt(gdb_service->target);
/* remove the initial ACK from the incoming buffer */
if ((retval = gdb_get_char(connection, &initial_ack)) != ERROR_OK)
@@ -1182,13 +1180,12 @@ int gdb_write_memory_packet(connection_t *connection, target_t *target, char *pa
}
else
{
- if ((retval = gdb_error(connection, retval)) != ERROR_OK)
- return retval;
+ retval = gdb_error(connection, retval);
}
free(buffer);
- return ERROR_OK;
+ return retval;
}
int gdb_write_memory_binary_packet(connection_t *connection, target_t *target, char *packet, int packet_size)
diff --git a/src/target/target.c b/src/target/target.c
index dc69e994..51aef65e 100644
--- a/src/target/target.c
+++ b/src/target/target.c
@@ -749,7 +749,7 @@ int target_register_commands(struct command_context_s *cmd_ctx)
register_command(cmd_ctx, NULL, "targets", handle_targets_command, COMMAND_EXEC, NULL);
register_command(cmd_ctx, NULL, "daemon_startup", handle_daemon_startup_command, COMMAND_CONFIG, NULL);
register_command(cmd_ctx, NULL, "target_script", handle_target_script_command, COMMAND_CONFIG, NULL);
- register_command(cmd_ctx, NULL, "run_and_halt_time", handle_run_and_halt_time_command, COMMAND_CONFIG, NULL);
+ register_command(cmd_ctx, NULL, "run_and_halt_time", handle_run_and_halt_time_command, COMMAND_CONFIG, "<target> <run time ms>");
register_command(cmd_ctx, NULL, "working_area", handle_working_area_command, COMMAND_ANY, "working_area <target#> <address> <size> <'backup'|'nobackup'> [virtual address]");
register_command(cmd_ctx, NULL, "virt2phys", handle_virt2phys_command, COMMAND_ANY, "virt2phys <virtual address>");
@@ -1110,8 +1110,7 @@ int handle_target_command(struct command_context_s *cmd_ctx, char *cmd, char **a
if (argc < 3)
{
- ERROR("target command requires at least three arguments: <type> <endianess> <reset_mode>");
- exit(-1);
+ return ERROR_COMMAND_SYNTAX_ERROR;
}
/* search for the specified target */
@@ -1148,7 +1147,7 @@ int handle_target_command(struct command_context_s *cmd_ctx, char *cmd, char **a
else
{
ERROR("endianness must be either 'little' or 'big', not '%s'", args[1]);
- exit(-1);
+ return ERROR_COMMAND_SYNTAX_ERROR;
}
/* what to do on a target reset */
@@ -1165,7 +1164,7 @@ int handle_target_command(struct command_context_s *cmd_ctx, char *cmd, char **a
else
{
ERROR("unknown target startup mode %s", args[2]);
- exit(-1);
+ return ERROR_COMMAND_SYNTAX_ERROR;
}
(*last_target_p)->run_and_halt_time = 1000; /* default 1s */
@@ -1212,7 +1211,7 @@ int handle_target_command(struct command_context_s *cmd_ctx, char *cmd, char **a
if (!found)
{
ERROR("target '%s' not found", args[0]);
- exit(-1);
+ return ERROR_COMMAND_SYNTAX_ERROR;
}
return ERROR_OK;
@@ -1226,15 +1225,14 @@ int handle_target_script_command(struct command_context_s *cmd_ctx, char *cmd, c
if (argc < 3)
{
ERROR("incomplete target_script command");
- exit(-1);
+ return ERROR_COMMAND_SYNTAX_ERROR;
}
target = get_target_by_num(strtoul(args[0], NULL, 0));
if (!target)
{
- ERROR("target number '%s' not defined", args[0]);
- exit(-1);
+ return ERROR_COMMAND_SYNTAX_ERROR;
}
if (strcmp(args[1], "reset") == 0)
@@ -1264,7 +1262,7 @@ int handle_target_script_command(struct command_context_s *cmd_ctx, char *cmd, c
else
{
ERROR("unknown event type: '%s", args[1]);
- exit(-1);
+ return ERROR_COMMAND_SYNTAX_ERROR;
}
return ERROR_OK;
@@ -1276,16 +1274,14 @@ int handle_run_and_halt_time_command(struct command_context_s *cmd_ctx, char *cm
if (argc < 2)
{
- ERROR("incomplete run_and_halt_time command");
- exit(-1);
+ return ERROR_COMMAND_SYNTAX_ERROR;
}
target = get_target_by_num(strtoul(args[0], NULL, 0));
if (!target)
{
- ERROR("target number '%s' not defined", args[0]);
- exit(-1);
+ return ERROR_COMMAND_SYNTAX_ERROR;
}
target->run_and_halt_time = strtoul(args[1], NULL, 0);
@@ -1306,8 +1302,7 @@ int handle_working_area_command(struct command_context_s *cmd_ctx, char *cmd, ch
if (!target)
{
- ERROR("target number '%s' not defined", args[0]);
- exit(-1);
+ return ERROR_COMMAND_SYNTAX_ERROR;
}
target_free_all_working_areas(target);
@@ -1898,6 +1893,7 @@ int handle_load_image_command(struct command_context_s *cmd_ctx, char *cmd, char
}
image_size = 0x0;
+ retval = ERROR_OK;
for (i = 0; i < image.num_sections; i++)
{
buffer = malloc(image.sections[i].size);
@@ -1909,13 +1905,14 @@ int handle_load_image_command(struct command_context_s *cmd_ctx, char *cmd, char
if ((retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt)) != ERROR_OK)
{
- ERROR("image_read_section failed with error code: %i", retval);
- command_print(cmd_ctx, "image reading failed, download aborted");
free(buffer);
- image_close(&image);
- return ERROR_OK;
+ break;
+ }
+ if ((retval = target_write_buffer(target, image.sections[i].base_address, buf_cnt, buffer)) != ERROR_OK)
+ {
+ free(buffer);
+ break;
}
- target_write_buffer(target, image.sections[i].base_address, buf_cnt, buffer);
image_size += buf_cnt;
command_print(cmd_ctx, "%u byte written at address 0x%8.8x", buf_cnt, image.sections[i].base_address);
@@ -1923,12 +1920,15 @@ int handle_load_image_command(struct command_context_s *cmd_ctx, char *cmd, char
}
duration_stop_measure(&duration, &duration_text);
- command_print(cmd_ctx, "downloaded %u byte in %s", image_size, duration_text);
+ if (retval==ERROR_OK)
+ {
+ command_print(cmd_ctx, "downloaded %u byte in %s", image_size, duration_text);
+ }
free(duration_text);
image_close(&image);
- return ERROR_OK;
+ return retval;
}
@@ -1939,7 +1939,7 @@ int handle_dump_image_command(struct command_context_s *cmd_ctx, char *cmd, char
u32 address;
u32 size;
u8 buffer[560];
- int retval;
+ int retval=ERROR_OK;
duration_t duration;
char *duration_text;
@@ -1976,11 +1976,14 @@ int handle_dump_image_command(struct command_context_s *cmd_ctx, char *cmd, char
retval = target->type->read_memory(target, address, 4, this_run_size / 4, buffer);
if (retval != ERROR_OK)
{
- command_print(cmd_ctx, "Reading memory failed %d", retval);
break;
}
- fileio_write(&fileio, this_run_size, buffer, &size_written);
+ retval = fileio_write(&fileio, this_run_size, buffer, &size_written);
+ if (retval != ERROR_OK)
+ {
+ break;
+ }
size -= this_run_size;
address += this_run_size;
@@ -1989,7 +1992,10 @@ int handle_dump_image_command(struct command_context_s *cmd_ctx, char *cmd, char
fileio_close(&fileio);
duration_stop_measure(&duration, &duration_text);
- command_print(cmd_ctx, "dumped %"PRIi64" byte in %s", fileio.size, duration_text);
+ if (retval==ERROR_OK)
+ {
+ command_print(cmd_ctx, "dumped %"PRIi64" byte in %s", fileio.size, duration_text);
+ }
free(duration_text);
return ERROR_OK;
@@ -2045,6 +2051,7 @@ int handle_verify_image_command(struct command_context_s *cmd_ctx, char *cmd, ch
}
image_size = 0x0;
+ retval=ERROR_OK;
for (i = 0; i < image.num_sections; i++)
{
buffer = malloc(image.sections[i].size);
@@ -2055,11 +2062,8 @@ int handle_verify_image_command(struct command_context_s *cmd_ctx, char *cmd, ch
}
if ((retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt)) != ERROR_OK)
{
- ERROR("image_read_section failed with error code: %i", retval);
- command_print(cmd_ctx, "image reading failed, verify aborted");
free(buffer);
- image_close(&image);
- return ERROR_OK;
+ break;
}
/* calculate checksum of image */
@@ -2069,10 +2073,8 @@ int handle_verify_image_command(struct command_context_s *cmd_ctx, char *cmd, ch
if( retval != ERROR_OK )
{
- command_print(cmd_ctx, "could not calculate checksum, verify aborted");
free(buffer);
- image_close(&image);
- return ERROR_OK;
+ break;
}
if( checksum != mem_checksum )
@@ -2104,8 +2106,8 @@ int handle_verify_image_command(struct command_context_s *cmd_ctx, char *cmd, ch
command_print(cmd_ctx, "Verify operation failed address 0x%08x. Was 0x%02x instead of 0x%02x\n", t + image.sections[i].base_address, data[t], buffer[t]);
free(data);
free(buffer);
- image_close(&image);
- return ERROR_OK;
+ retval=ERROR_FAIL;
+ goto done;
}
}
}
@@ -2116,14 +2118,17 @@ int handle_verify_image_command(struct command_context_s *cmd_ctx, char *cmd, ch
free(buffer);
image_size += buf_cnt;
}
-
+done:
duration_stop_measure(&duration, &duration_text);
- command_print(cmd_ctx, "verified %u bytes in %s", image_size, duration_text);
+ if (retval==ERROR_OK)
+ {
+ command_print(cmd_ctx, "verified %u bytes in %s", image_size, duration_text);
+ }
free(duration_text);
image_close(&image);
- return ERROR_OK;
+ return retval;
}
int handle_bp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
generated by cgit v1.2.3 (git 2.46.0) at 2024-12-23 16:45:55 +0000