On Mon, Sep 28, 2020 at 03:34:45PM +0200, Alexander Dahl wrote:
> Hei Roland,
>
> Am Dienstag, 22. September 2020, 11:28:59 CEST schrieb Roland Hieber:
> > The current process to generate a kernel .config file from a defconfig
> > is a bit cumbersome:
> >
> > $ ptxdist extract kernel
> > $ cd platform-foo/build-target/linux-<version>
> > $ make ARCH=... CROSS_COMPILE=... foo_defconfig
> > $ cp .config ../../../configs/platform-foo/kernelconfig
>
> What about the following?
>
> $ ptxdist extract kernel
> $ cp platform-foo/build-target/linux-<version>/arch/arm/configs/
> bar_defconfig configs/platform-foo/kernelconfig
> $ ptxdist oldconfig kernel
>
> > All kernel and barebox rules and templates already support the
> > <package>_%config target since commit b0f9f2fe33ca9027a554 (2020-08-07,
> > "barebox, kernel: enable use of {allyes, allno, allmod, alldef,
> > rand}config"), so we only need to wire them into the command line
> > parser, and then we can easily get a defconfig like this:
> >
> > $ ptxdist defconfig kernel # most ARCHs
> > $ ptxdist imx_v6_v7_defconfig kernel # e.g. with ARCH=arm
>
> This looks somehow like a weird syntax, but I have no idea for a better one.
> :-/
Hmm, I agree that this looks weird. And having a wildcard for a ptxdist
command is not something that I want. Maybe:
ptxdist defconfig kernel imx_v6_v7
Michael
> What about U-Boot? Currently there's PTXCONF_U_BOOT_CONFIGSYSTEM_LEGACY and
> you can just use a defconfig name in there.
>
> (That was actually not supposed to target defconfig in particular, but the
> pre
> kconfig U-Boot config mechanism, but it also works for recent U-Boot
> defconfigs.)
>
> Greets
> Alex
>
> > Signed-off-by: Roland Hieber <r...@pengutronix.de>
> > ---
> > * v2: fix <pkg> in help text, it's not an optional parameter
> >
> > bin/ptxdist | 15 ++++++++++++++-
> > doc/ref_parameter.rst | 9 +++++++++
> > 2 files changed, 23 insertions(+), 1 deletion(-)
> >
> > diff --git a/bin/ptxdist b/bin/ptxdist
> > index 0d5e4328e1d6..000879f45187 100755
> > --- a/bin/ptxdist
> > +++ b/bin/ptxdist
> > @@ -705,6 +705,9 @@ Setup and Project Actions:
> >
> > menuconfig barebox configure the bootloader Barebox
> >
> > + [<prefix>]defconfig <pkg> generate a default config file for <pkg>
> > + e.g.: ptxdist multi_v7_defconfig kernel
> > +
> > oldconfig run 'make oldconfig' on ptxconfig file
> > allmodconfig run 'make allmodconfig' on ptxconfig
> > file
> > allyesconfig run 'make allyesconfig' on ptxconfig
> > file
> > @@ -1267,6 +1270,16 @@ do_config()
> > case "${config}" in
> > menuconfig|nconfig|oldconfig|all*config|randconfig)
> > ;;
> > + *defconfig)
> > + case "${part}" in
> > +
> > "ptx"|"ptxdist"|""|"setup"|"platform"|"board"|"user"|"collection")
> > + echo
> > + echo "${PTXDIST_LOG_PROMPT}error: cannot do a
> > '${config}' for part
> > '${part}'" + echo
> > + exit 1
> > + ;;
> > + esac
> > + ;;
> > *)
> > echo
> > echo "${PTXDIST_LOG_PROMPT}error: invalid use of '${FUNCNAME}
> > ${@}'"
> > @@ -1625,7 +1638,7 @@ parse_second()
> >
> > ######## *config, *setup, toolchain
> >
> > -
> > menuconfig|nconfig|oldconfig|allmodconfig|allyesconfig|allnoconfig|
> alldef
> > config|randconfig)
> > +
> > menuconfig|nconfig|oldconfig|allmodconfig|allyesconfig|allnoconfig|*defc
> > onfig|randconfig) do_config "${cmd}" "${@}"
> > exit
> > ;;
> > diff --git a/doc/ref_parameter.rst b/doc/ref_parameter.rst
> > index 1d54fa4b4428..cac35cddb5ac 100644
> > --- a/doc/ref_parameter.rst
> > +++ b/doc/ref_parameter.rst
> > @@ -95,6 +95,15 @@ Setup and Project Actions
> > functionality as ``menuconfig``. It can be used instead of ``menuconfig``
> > for all the component described above.
> >
> > +``[<prefix>]defconfig <package>``
> > + generate a default config file for kconfig-based packages (kernel,
> > barebox). + The ``[<prefix>]`` can be given optionally to use a specific
> > defconfig file, + which depends on the respective package and the
> > architecture.
> > + Examples::
> > +
> > + $ ptxdist defconfig kernel # most ARCHs
> > + $ ptxdist imx_v6_v7_defconfig kernel # e.g. for ARCH=arm
> > +
> > ``oldconfig [<component>]``, ``allmodconfig [<component>]``, ``allyesconfig
> > [<component>]``, ``allnoconfig [<component>]``, ``alldefconfig
> > [<component>]``, ``randconfig [<component>]`` this action will run the
> > corresponding kconfig action for the specified component. ``oldconfig``
> > will prompt for all new options.
>
>
>
>
>
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