dtoc fixes with pylint, tests

Remove the dependency on CMD_PXE from BOOTMETH_DISTRO by introducing a
new hidden kconfig symbol to control whether pxe_utils is compiled,
allowing bootstd's distro method to be compiled without needing
networking support enabled.

Signed-off-by: John Keeping <john@metanate.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Correct build errors when CMD_BOOTM is not enabled:
Signed-off-by: Simon Glass <sjg@chromium.org>

The declarations in the header and in the implementation must match.

Reported-by: Sergei Antonov <saproj@gmail.com>
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

Add a basic test of the 'fdt addr' command, to kick things off.

This includes a new convenience function to run a command from a printf()
string.

Signed-off-by: Simon Glass <sjg@chromium.org>

Sphinx expects Return: and not @return to indicate a return value.

find . -name '*.c' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

find . -name '*.h' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

This text should never change during execution, so it makes sense to
use a const char * so that it can be declared as const in the code.
Update struct cmd_tbl with a const char * pointer for 'help'.

We cannot make usage const because of the bmode command, used on mx53ppd
for example.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

The U_BOOT_CMDREP_COMPLETE() macro produces a build error if CONFIG_CMDLINE
is not enabled. Fix this by updating the macro to provide the 'repeatable'
arugment in this case.

Signed-off-by: Simon Glass <sjg@chromium.org>

Add "zboot" command to the list of supported boot in the
label_boot function.

Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: add component tags in the summary]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>

Remove the extern of the header because they are useless.

Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
[bmeng: minor edit on the commit message]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>

Add tests to check for buffer overflow using simple replacement as well
as back references. At present these don't fully pass.

Signed-off-by: Simon Glass <sjg@chromium.org>