mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-17 15:38:51 +09:00
![Simon Glass](/assets/img/avatar_default.png)
It is often useful to be able to save out the state from a sandbox test run, for analysis or to restore it later to continue a test. Add generic infrastructure for doing this using a device tree binary file. This is a flexible tagged file format which is already supported by U-Boot, and it supports hierarchy if needed. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Hung-ying Tyan <tyanh@chromium.org>
191 lines
4.3 KiB
C
191 lines
4.3 KiB
C
/*
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* Copyright (c) 2011-2012 The Chromium OS Authors.
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <os.h>
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#include <asm/getopt.h>
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#include <asm/sections.h>
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#include <asm/state.h>
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DECLARE_GLOBAL_DATA_PTR;
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int sandbox_early_getopt_check(void)
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{
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struct sandbox_state *state = state_get_current();
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struct sandbox_cmdline_option **sb_opt = __u_boot_sandbox_option_start;
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size_t num_options = __u_boot_sandbox_option_count();
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size_t i;
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int max_arg_len, max_noarg_len;
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/* parse_err will be a string of the faulting option */
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if (!state->parse_err)
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return 0;
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if (strcmp(state->parse_err, "help")) {
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printf("u-boot: error: failed while parsing option: %s\n"
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"\ttry running with --help for more information.\n",
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state->parse_err);
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os_exit(1);
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}
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printf(
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"u-boot, a command line test interface to U-Boot\n\n"
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"Usage: u-boot [options]\n"
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"Options:\n");
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max_arg_len = 0;
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for (i = 0; i < num_options; ++i)
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max_arg_len = max(strlen(sb_opt[i]->flag), max_arg_len);
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max_noarg_len = max_arg_len + 7;
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for (i = 0; i < num_options; ++i) {
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struct sandbox_cmdline_option *opt = sb_opt[i];
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/* first output the short flag if it has one */
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if (opt->flag_short >= 0x100)
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printf(" ");
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else
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printf(" -%c, ", opt->flag_short);
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/* then the long flag */
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if (opt->has_arg)
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printf("--%-*s <arg> ", max_arg_len, opt->flag);
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else
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printf("--%-*s", max_noarg_len, opt->flag);
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/* finally the help text */
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printf(" %s\n", opt->help);
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}
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os_exit(0);
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}
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static int sandbox_cmdline_cb_help(struct sandbox_state *state, const char *arg)
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{
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/* just flag to sandbox_early_getopt_check to show usage */
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return 1;
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}
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SANDBOX_CMDLINE_OPT_SHORT(help, 'h', 0, "Display help");
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int sandbox_main_loop_init(void)
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{
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struct sandbox_state *state = state_get_current();
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/* Execute command if required */
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if (state->cmd) {
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run_command_list(state->cmd, -1, 0);
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if (!state->interactive)
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os_exit(state->exit_type);
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}
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return 0;
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}
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static int sandbox_cmdline_cb_command(struct sandbox_state *state,
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const char *arg)
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{
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state->cmd = arg;
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return 0;
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}
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SANDBOX_CMDLINE_OPT_SHORT(command, 'c', 1, "Execute U-Boot command");
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static int sandbox_cmdline_cb_fdt(struct sandbox_state *state, const char *arg)
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{
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state->fdt_fname = arg;
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return 0;
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}
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SANDBOX_CMDLINE_OPT_SHORT(fdt, 'd', 1, "Specify U-Boot's control FDT");
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static int sandbox_cmdline_cb_interactive(struct sandbox_state *state,
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const char *arg)
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{
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state->interactive = true;
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return 0;
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}
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SANDBOX_CMDLINE_OPT_SHORT(interactive, 'i', 0, "Enter interactive mode");
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static int sandbox_cmdline_cb_memory(struct sandbox_state *state,
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const char *arg)
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{
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int err;
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/* For now assume we always want to write it */
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state->write_ram_buf = true;
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state->ram_buf_fname = arg;
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if (os_read_ram_buf(arg)) {
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printf("Failed to read RAM buffer\n");
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return err;
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}
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return 0;
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}
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SANDBOX_CMDLINE_OPT_SHORT(memory, 'm', 1,
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"Read/write ram_buf memory contents from file");
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static int sandbox_cmdline_cb_state(struct sandbox_state *state,
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const char *arg)
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{
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state->state_fname = arg;
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return 0;
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}
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SANDBOX_CMDLINE_OPT_SHORT(state, 's', 1, "Specify the sandbox state FDT");
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static int sandbox_cmdline_cb_read(struct sandbox_state *state,
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const char *arg)
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{
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state->read_state = true;
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return 0;
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}
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SANDBOX_CMDLINE_OPT_SHORT(read, 'r', 0, "Read the state FDT on startup");
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static int sandbox_cmdline_cb_write(struct sandbox_state *state,
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const char *arg)
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{
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state->write_state = true;
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return 0;
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}
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SANDBOX_CMDLINE_OPT_SHORT(write, 'w', 0, "Write state FDT on exit");
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static int sandbox_cmdline_cb_ignore_missing(struct sandbox_state *state,
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const char *arg)
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{
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state->ignore_missing_state_on_read = true;
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return 0;
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}
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SANDBOX_CMDLINE_OPT_SHORT(ignore_missing, 'n', 0,
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"Ignore missing state on read");
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int main(int argc, char *argv[])
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{
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struct sandbox_state *state;
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int ret;
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ret = state_init();
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if (ret)
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goto err;
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state = state_get_current();
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if (os_parse_args(state, argc, argv))
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return 1;
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ret = sandbox_read_state(state, state->state_fname);
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if (ret)
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goto err;
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/* Do pre- and post-relocation init */
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board_init_f(0);
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board_init_r(gd->new_gd, 0);
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/* NOTREACHED - board_init_r() does not return */
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return 0;
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err:
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printf("Error %d\n", ret);
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return 1;
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}
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