* Initialize common semihosting support.
*
* @param target Pointer to the target to initialize.
+ * @param setup
+ * @param post_result
* @return An error status if there is a problem during initialization.
*/
int semihosting_common_init(struct target *target, void *setup,
{
struct semihosting *semihosting = target->semihosting;
if (!semihosting) {
- /* Silently ignore if the semhosting field was not set. */
+ /* Silently ignore if the semihosting field was not set. */
return ERROR_OK;
}
else {
int fd = semihosting_get_field(target, 0, fields);
if (semihosting->is_fileio) {
+ if (fd == 0 || fd == 1 || fd == 2) {
+ semihosting->result = 0;
+ break;
+ }
semihosting->hit_fileio = true;
fileio_info->identifier = "close";
fileio_info->param_1 = fd;
"semihosting: *** application exited normally ***\n");
}
} else if (semihosting->param == ADP_STOPPED_RUN_TIME_ERROR) {
- /* Chosen more or less arbitrarly to have a nicer message,
+ /* Chosen more or less arbitrarily to have a nicer message,
* otherwise all other return the same exit code 1. */
if (!gdb_actual_connections)
exit(1);
* - –1 if an error occurs.
*/
if (semihosting->is_fileio) {
- LOG_ERROR("SYS_FLEN not supported by semihosting fileio");
- return ERROR_FAIL;
+ semihosting->result = -1;
+ semihosting->sys_errno = EINVAL;
}
retval = semihosting_read_fields(target, 1, fields);
if (retval != ERROR_OK)
/* TODO: implement the :semihosting-features special file.
* */
if (semihosting->is_fileio) {
- if (strcmp((char *)fn, ":tt") == 0)
- semihosting->result = 0;
- else {
+ if (strcmp((char *)fn, ":semihosting-features") == 0) {
+ semihosting->result = -1;
+ semihosting->sys_errno = EINVAL;
+ } else if (strcmp((char *)fn, ":tt") == 0) {
+ if (mode == 0)
+ semihosting->result = 0;
+ else if (mode == 4)
+ semihosting->result = 1;
+ else if (mode == 8)
+ semihosting->result = 2;
+ else
+ semihosting->result = -1;
+ } else {
semihosting->hit_fileio = true;
fileio_info->identifier = "open";
fileio_info->param_1 = addr;
uint8_t *fn1 = malloc(len1+1);
uint8_t *fn2 = malloc(len2+1);
if (!fn1 || !fn2) {
+ free(fn1);
+ free(fn2);
semihosting->result = -1;
semihosting->sys_errno = ENOMEM;
} else {
uint8_t *fields)
{
struct semihosting *semihosting = target->semihosting;
- return target_read_memory(target, semihosting->param,
- semihosting->word_size_bytes, number, fields);
+ /* Use 4-byte multiples to trigger fast memory access. */
+ return target_read_memory(target, semihosting->param, 4,
+ number * (semihosting->word_size_bytes / 4), fields);
}
/**
uint8_t *fields)
{
struct semihosting *semihosting = target->semihosting;
- return target_write_memory(target, semihosting->param,
- semihosting->word_size_bytes, number, fields);
+ /* Use 4-byte multiples to trigger fast memory access. */
+ return target_write_memory(target, semihosting->param, 4,
+ number * (semihosting->word_size_bytes / 4), fields);
}
/**
/* -------------------------------------------------------------------------
* Common semihosting commands handlers. */
-__COMMAND_HANDLER(handle_common_semihosting_command)
+static __COMMAND_HANDLER(handle_common_semihosting_command)
{
struct target *target = get_current_target(CMD_CTX);
struct semihosting *semihosting = target->semihosting;
if (!semihosting) {
- command_print(CMD_CTX, "semihosting not supported for current target");
+ command_print(CMD, "semihosting not supported for current target");
return ERROR_FAIL;
}
semihosting->is_active = is_active;
}
- command_print(CMD_CTX, "semihosting is %s",
+ command_print(CMD, "semihosting is %s",
semihosting->is_active
? "enabled" : "disabled");
return ERROR_OK;
}
-
-__COMMAND_HANDLER(handle_common_semihosting_fileio_command)
+static __COMMAND_HANDLER(handle_common_semihosting_fileio_command)
{
struct target *target = get_current_target(CMD_CTX);
struct semihosting *semihosting = target->semihosting;
if (!semihosting) {
- command_print(CMD_CTX, "semihosting not supported for current target");
+ command_print(CMD, "semihosting not supported for current target");
return ERROR_FAIL;
}
if (!semihosting->is_active) {
- command_print(CMD_CTX, "semihosting not yet enabled for current target");
+ command_print(CMD, "semihosting not yet enabled for current target");
return ERROR_FAIL;
}
if (CMD_ARGC > 0)
COMMAND_PARSE_ENABLE(CMD_ARGV[0], semihosting->is_fileio);
- command_print(CMD_CTX, "semihosting fileio is %s",
+ command_print(CMD, "semihosting fileio is %s",
semihosting->is_fileio
? "enabled" : "disabled");
return ERROR_OK;
}
-__COMMAND_HANDLER(handle_common_semihosting_cmdline)
+static __COMMAND_HANDLER(handle_common_semihosting_cmdline)
{
struct target *target = get_current_target(CMD_CTX);
unsigned int i;
struct semihosting *semihosting = target->semihosting;
if (!semihosting) {
- command_print(CMD_CTX, "semihosting not supported for current target");
+ command_print(CMD, "semihosting not supported for current target");
return ERROR_FAIL;
}
semihosting->cmdline = cmdline;
}
- command_print(CMD_CTX, "semihosting command line is [%s]",
+ command_print(CMD, "semihosting command line is [%s]",
semihosting->cmdline);
return ERROR_OK;
}
-__COMMAND_HANDLER(handle_common_semihosting_resumable_exit_command)
+static __COMMAND_HANDLER(handle_common_semihosting_resumable_exit_command)
{
struct target *target = get_current_target(CMD_CTX);
struct semihosting *semihosting = target->semihosting;
if (!semihosting) {
- command_print(CMD_CTX, "semihosting not supported for current target");
+ command_print(CMD, "semihosting not supported for current target");
return ERROR_FAIL;
}
if (!semihosting->is_active) {
- command_print(CMD_CTX, "semihosting not yet enabled for current target");
+ command_print(CMD, "semihosting not yet enabled for current target");
return ERROR_FAIL;
}
if (CMD_ARGC > 0)
COMMAND_PARSE_ENABLE(CMD_ARGV[0], semihosting->has_resumable_exit);
- command_print(CMD_CTX, "semihosting resumable exit is %s",
+ command_print(CMD, "semihosting resumable exit is %s",
semihosting->has_resumable_exit
? "enabled" : "disabled");
return ERROR_OK;
}
+
+const struct command_registration semihosting_common_handlers[] = {
+ {
+ "semihosting",
+ .handler = handle_common_semihosting_command,
+ .mode = COMMAND_EXEC,
+ .usage = "['enable'|'disable']",
+ .help = "activate support for semihosting operations",
+ },
+ {
+ "semihosting_cmdline",
+ .handler = handle_common_semihosting_cmdline,
+ .mode = COMMAND_EXEC,
+ .usage = "arguments",
+ .help = "command line arguments to be passed to program",
+ },
+ {
+ "semihosting_fileio",
+ .handler = handle_common_semihosting_fileio_command,
+ .mode = COMMAND_EXEC,
+ .usage = "['enable'|'disable']",
+ .help = "activate support for semihosting fileio operations",
+ },
+ {
+ "semihosting_resexit",
+ .handler = handle_common_semihosting_resumable_exit_command,
+ .mode = COMMAND_EXEC,
+ .usage = "['enable'|'disable']",
+ .help = "activate support for semihosting resumable exit",
+ },
+ COMMAND_REGISTRATION_DONE
+};