u-boot/lib/hang.c
Simon Glass f2980ece06 sandbox: Quit when hang() is called
It doesn't make a lot of sense to hang on sandbox when hang() is called,
since the only way out is Ctrl-C. In fact, Ctrl-C does not work if the
terminal is in raw mode, which it will be if the command-line has not been
reached yet. In that case, Ctrl-Z / kill -9 must be used, which is not
very friendly.

Avoid all of this by quiting when hang() is called.

Signed-off-by: Simon Glass <sjg@chromium.org>
2019-07-10 16:52:58 -06:00

35 lines
884 B
C

// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2013
* Andreas Bießmann <andreas@biessmann.org>
*
* This file consolidates all the different hang() functions implemented in
* u-boot.
*/
#include <common.h>
#include <bootstage.h>
#include <os.h>
/**
* hang - stop processing by staying in an endless loop
*
* The purpose of this function is to stop further execution of code cause
* something went completely wrong. To catch this and give some feedback to
* the user one needs to catch the bootstage_error (see show_boot_progress())
* in the board code.
*/
void hang(void)
{
#if !defined(CONFIG_SPL_BUILD) || \
(CONFIG_IS_ENABLED(LIBCOMMON_SUPPORT) && \
CONFIG_IS_ENABLED(SERIAL_SUPPORT))
puts("### ERROR ### Please RESET the board ###\n");
#endif
bootstage_error(BOOTSTAGE_ID_NEED_RESET);
if (IS_ENABLED(CONFIG_SANDBOX))
os_exit(1);
for (;;)
;
}