+static void gdb_fileio_reply(struct target *target, struct connection *connection)
+{
+ struct gdb_connection *gdb_connection = connection->priv;
+ char fileio_command[256];
+ int command_len;
+ bool program_exited = false;
+
+ if (strcmp(target->fileio_info->identifier, "open") == 0)
+ sprintf(fileio_command, "F%s,%" PRIx64 "/%" PRIx64 ",%" PRIx64 ",%" PRIx64, 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,%" PRIx64, target->fileio_info->identifier,
+ target->fileio_info->param_1);
+ else if (strcmp(target->fileio_info->identifier, "read") == 0)
+ sprintf(fileio_command, "F%s,%" PRIx64 ",%" PRIx64 ",%" PRIx64, 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,%" PRIx64 ",%" PRIx64 ",%" PRIx64, 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,%" PRIx64 ",%" PRIx64 ",%" PRIx64, 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,%" PRIx64 "/%" PRIx64 ",%" PRIx64 "/%" PRIx64, 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,%" PRIx64 "/%" PRIx64, 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,%" PRIx64 "/%" PRIx64 ",%" PRIx64, 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,%" PRIx64 ",%" PRIx64, 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,%" PRIx64 ",%" PRIx64, 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,%" PRIx64, target->fileio_info->identifier,
+ target->fileio_info->param_1);
+ else if (strcmp(target->fileio_info->identifier, "system") == 0)
+ sprintf(fileio_command, "F%s,%" PRIx64 "/%" PRIx64, 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%02" PRIx64, target->fileio_info->param_1);
+ } else {
+ LOG_DEBUG("Unknown syscall: %s", target->fileio_info->identifier);
+
+ /* encounter unknown syscall, continue */
+ gdb_connection->frontend_state = TARGET_RUNNING;
+ target_resume(target, 1, 0x0, 0, 0);
+ return;
+ }
+
+ command_len = strlen(fileio_command);
+ gdb_put_packet(connection, fileio_command, command_len);
+
+ if (program_exited) {
+ /* Use target_resume() to let target run its own exit syscall handler. */
+ gdb_connection->frontend_state = TARGET_RUNNING;
+ target_resume(target, 1, 0x0, 0, 0);
+ } else {