u-boot-brain/arch/sandbox/cpu/start.c
Simon Glass c5a62d4a7b sandbox: Add -i option to enter interactive mode
Normally when U-Boot starts with a command (-c option) it quits when the
command completes. Normally this is what is requires, since the test is
likely complete.

Provide an option to jump into the console instead, so that debugging or
other tasks may be performed before quitting.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
2014-01-08 17:24:53 -07:00

132 lines
2.9 KiB
C

/*
* Copyright (c) 2011-2012 The Chromium OS Authors.
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/getopt.h>
#include <asm/sections.h>
#include <asm/state.h>
#include <os.h>
DECLARE_GLOBAL_DATA_PTR;
int sandbox_early_getopt_check(void)
{
struct sandbox_state *state = state_get_current();
struct sandbox_cmdline_option **sb_opt = __u_boot_sandbox_option_start;
size_t num_options = __u_boot_sandbox_option_count();
size_t i;
int max_arg_len, max_noarg_len;
/* parse_err will be a string of the faulting option */
if (!state->parse_err)
return 0;
if (strcmp(state->parse_err, "help")) {
printf("u-boot: error: failed while parsing option: %s\n"
"\ttry running with --help for more information.\n",
state->parse_err);
os_exit(1);
}
printf(
"u-boot, a command line test interface to U-Boot\n\n"
"Usage: u-boot [options]\n"
"Options:\n");
max_arg_len = 0;
for (i = 0; i < num_options; ++i)
max_arg_len = max(strlen(sb_opt[i]->flag), max_arg_len);
max_noarg_len = max_arg_len + 7;
for (i = 0; i < num_options; ++i) {
struct sandbox_cmdline_option *opt = sb_opt[i];
/* first output the short flag if it has one */
if (opt->flag_short >= 0x100)
printf(" ");
else
printf(" -%c, ", opt->flag_short);
/* then the long flag */
if (opt->has_arg)
printf("--%-*s <arg> ", max_arg_len, opt->flag);
else
printf("--%-*s", max_noarg_len, opt->flag);
/* finally the help text */
printf(" %s\n", opt->help);
}
os_exit(0);
}
static int sandbox_cmdline_cb_help(struct sandbox_state *state, const char *arg)
{
/* just flag to sandbox_early_getopt_check to show usage */
return 1;
}
SANDBOX_CMDLINE_OPT_SHORT(help, 'h', 0, "Display help");
int sandbox_main_loop_init(void)
{
struct sandbox_state *state = state_get_current();
/* Execute command if required */
if (state->cmd) {
run_command_list(state->cmd, -1, 0);
if (!state->interactive)
os_exit(state->exit_type);
}
return 0;
}
static int sandbox_cmdline_cb_command(struct sandbox_state *state,
const char *arg)
{
state->cmd = arg;
return 0;
}
SANDBOX_CMDLINE_OPT_SHORT(command, 'c', 1, "Execute U-Boot command");
static int sandbox_cmdline_cb_fdt(struct sandbox_state *state, const char *arg)
{
state->fdt_fname = arg;
return 0;
}
SANDBOX_CMDLINE_OPT_SHORT(fdt, 'd', 1, "Specify U-Boot's control FDT");
static int sandbox_cmdline_cb_interactive(struct sandbox_state *state,
const char *arg)
{
state->interactive = true;
return 0;
}
SANDBOX_CMDLINE_OPT_SHORT(interactive, 'i', 0, "Enter interactive mode");
int main(int argc, char *argv[])
{
struct sandbox_state *state;
int err;
err = state_init();
if (err)
return err;
state = state_get_current();
if (os_parse_args(state, argc, argv))
return 1;
/* Do pre- and post-relocation init */
board_init_f(0);
board_init_r(gd->new_gd, 0);
/* NOTREACHED - board_init_r() does not return */
return 0;
}