Commit graph

1547 commits

Author SHA1 Message Date
Pavel Machek
c4aaf2e0a6 fix makefiles to respect DTC setting
Top-level Makefile has option to select dtc binary, but it is ignored
due to bug in Makefile.lib. Fix it.

Signed-off-by: Pavel Machek <pavel@denx.de>
2015-04-07 08:41:10 -04:00
Masahiro Yamada
5f9eb22075 kbuild: remove scripts/multiconfig.sh
We have switched to the single .config configuration system,
the same one as used in Linux Kernel.

The necessary glue code is small enough now, so move it to the
top-level Makefile and scripts/kconfig/Makefile, and then delete
scripts/multiconfig.sh.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2015-03-28 09:03:08 -04:00
Masahiro Yamada
97ec89e501 kbuild: remove "*_felconfig" target
This target was added by commit cbdd9a9737 (sunxi: kconfig: Add
%_felconfig rule to enable FEL build of sunxi platforms.).

At that time, U-Boot used separate .config files for U-Boot proper
and SPL.  I understood the pain to modify both .config and
spl/.config.

Now, we have switched to single .config configuration.
It seems acceptable to run "make menuconfig" or friends to enable
CONFIG_SPL_FEL, as we do for other CONFIGs.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Ian Campbell <ijc@hellion.org.uk>
Cc: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2015-03-28 09:03:08 -04:00
Masahiro Yamada
fc196d0e9b fixdep: remove multiple .config support code
Since commit e02ee2548a (kconfig: switch to single .config
configuration), the ".*.cmd" files are not correctly created
for SPL/TPL.  The U-Boot extension code in fixdep, which was
introduced to support the multiple .config, must be removed.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2015-03-05 20:50:30 -05:00
Kim Phillips
a32ab4d910 scripts/checkstack.pl: update to get AArch64 port from Linux
Bring checkstack.pl up to date from its upstream Linux development.
Effectively, the following linux commits:

208ad00 checkstack.pl: port to AArch64
fda9f99 scripts/checkstack.pl: automatically handle 32-bit and 64-bit mode for ARCH=x86
7eb6e34 kbuild: trivial - remove trailing empty lines
690998b scripts/checkstack.pl: Add metag support

Reported-by: York Sun <yorksun@freescale.com>
Cc: Masahiro Yamada <yamada.m@jp.panasonic.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
2015-03-05 11:17:53 -05:00
Masahiro Yamada
cc2b49c2ba kconfig: remove unneeded U-Boot extension code
This code was introduced to support the multiple .config
configuration in U-Boot.  We do not need it any more.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2015-03-02 08:48:14 -05:00
Masahiro Yamada
d648964fc2 kconfig: remove unneeded dependency on !SPL_BUILD
Now CONFIG_SPL_BUILD is not defined in Kconfig, so
"!depends on SPL_BUILD" and "if !SPL_BUILD" are redundant.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2015-02-24 17:06:27 -05:00
Masahiro Yamada
e02ee2548a kconfig: switch to single .config configuration
When Kconfig for U-boot was examined, one of the biggest issues was
how to support multiple images (Normal, SPL, TPL).  There were
actually two options, "single .config" and "multiple .config".
After some discussions and thought experiments, I chose the latter,
i.e. to create ".config", "spl/.config", "tpl/.config" for Normal,
SPL, TPL, respectively.

It is true that the "multiple .config" strategy provided us the
maximum flexibility and helped to avoid duplicating CONFIGs among
Normal, SPL, TPL, but I have noticed some fatal problems:

[1] It is impossible to share CONFIG options across the images.
  If you change the configuration of Main image, you often have to
  adjust some SPL configurations correspondingly.  Currently, we
  cannot handle the dependencies between them.  It means one of the
  biggest advantages of Kconfig is lost.

[2] It is too painful to change both ".config" and "spl/.config".
  Sunxi guys started to work around this problem by creating a new
  configuration target.  Commit cbdd9a9737 (sunxi: kconfig: Add
  %_felconfig rule to enable FEL build of sunxi platforms.) added
  "make *_felconfig" to enable CONFIG_SPL_FEL on both images.
  Changing the configuration of multiple images in one command is a
  generic demand.  The current implementation cannot propose any
  good solution about this.

[3] Kconfig files are getting ugly and difficult to understand.
  Commit b724bd7d63 (dm: Kconfig: Move CONFIG_SYS_MALLOC_F_LEN to
  Kconfig) has sprinkled "if !SPL_BUILD" over the Kconfig files.

[4] The build system got more complicated than it should be.
  To adjust Linux-originated Kconfig to U-Boot, the helper script
  "scripts/multiconfig.sh" was introduced.  Writing a complicated
  text processor is a shell script sometimes caused problems.

Now I believe the "single .config" will serve us better.  With it,
all the problems above would go away.  Instead, we will have to add
some CONFIG_SPL_* (and CONFIG_TPL_*) options such as CONFIG_SPL_DM,
but we will not have much.  Anyway, this is what we do now in
scripts/Makefile.spl.

I admit my mistake with my apology and this commit switches to the
single .config configuration.

It is not so difficult to do that:

 - Remove unnecessary processings from scripts/multiconfig.sh
  This file will remain for a while to support the current defconfig
  format.  It will be removed after more cleanups are done.

 - Adjust some makefiles and Kconfigs

 - Add some entries to include/config_uncmd_spl.h and the new file
   scripts/Makefile.uncmd_spl.  Some CONFIG options that are not
   supported on SPL must be disabled because one .config is shared
   between SPL and U-Boot proper going forward.  I know this is not
   a beautiful solution and I think we can do better, but let's see
   how much we will have to describe them.

 - update doc/README.kconfig

More cleaning up patches will follow this.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2015-02-24 17:06:23 -05:00
Masahiro Yamada
0e7368c6c4 kbuild: prepare for moving headers into mach-*/include/mach
In U-Boot, SoC-specific headers are placed in
arch/$(ARCH)/include/asm/arch-$(SOC) and a symbolic link to that
directory is created at the early stage of the build process.

Creating and removing a symbolic link during the build is not
preferred.  In fact, Linux Kernel did away with include/asm-$(ARCH)
directories a long time time ago.

As for ARM, now it is possible to collect SoC sources into
arch/arm/mach-$(SOC).  It is also reasonable to move SoC headers
into arch/arm/mach-$(SOC)/include/mach.

This commit prepares for that.
If the directory arch/$(ARCH)/mach-$(SOC)/include/mach exists,
a symbolic to that directory is created.  Otherwise, a symbolic link
to arch/$(ARCH)/include/asm/arch-$(SOC) or arch-$(CPU) is created.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2015-02-21 08:23:52 -05:00
Simon Glass
942cb0b6a2 sunxi: Normalise FEL support
Make sunxi's FEL code fit with the normal U-Boot boot sequence instead of
creating its own. There are some #ifdefs required in start.S. Future work
will hopefully remove these.

This series is available at u-boot-dm, branch sunxi-working.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2015-02-16 20:15:09 +01:00
Stefan Roese
0cf47862bf scripts/Makefile.spl: Add MVEBU DDR code to SPL
Signed-off-by: Stefan Roese <sr@denx.de>
Reviewed-by: Luka Perkov <luka.perkov@sartura.hr>
2015-02-06 17:24:54 +01:00
Masahiro Yamada
478d9372d1 scripts: add a utility to fill blank fields of doc/README.scrapyard
We are removing bunch of non-generic boards these days.

Updating doc/README.scrapyard is a really tedious task, but it can
be automated.  I hope this tool will make our life easier.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2015-01-14 10:58:49 -05:00
Siarhei Siamashka
f0ce28e9ed sunxi: Fix CONFIG_UART0_PORT_F build and add it to menuconfig
The CONFIG_UART0_PORT_F option has been supported since
    http://git.denx.de/?p=u-boot.git;a=commit;h=ff2b47f6a9cc1025

This option is primarily useful only for low level u-boot debugging
on tablets, where normal UART0 is difficult to access and requires
device disassembly and/or soldering.

This patch now allows it to be selected from menuconfig. A dependency on
SPL_FEL is added because u-boot does not support booting from NAND yet
and also booting from SD card is impossible when a MicroSD breakout board
is plugged into the SD slot.

Additionally a compilation problem is fixed:

common/spl/built-in.o: In function `spl_mmc_load_image':
/tmp/u-boot-sunxi/common/spl/spl_mmc.c:94: undefined reference to `mmc_initialize'
/tmp/u-boot-sunxi/common/spl/spl_mmc.c:96: undefined reference to `find_mmc_device'
/tmp/u-boot-sunxi/common/spl/spl_mmc.c:104: undefined reference to `mmc_init'
scripts/Makefile.spl:206: recipe for target 'spl/u-boot-spl' failed

Signed-off-by: Siarhei Siamashka <siarhei.siamashka@gmail.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2015-01-14 14:56:37 +01:00
Bill Pringlemeir
b6b1b44586 scripts: fix binutils-version.sh for 'as' without a package.
Commit 73c25753 fixed the common issue that binutil packages (tool/organization
that packaged or built the bin-utils) are included in brackets and this may
falsely be recognized as a version.  However, some tools do not provide a
'package' and previously we add the 'Gnu assembler..' to the version.

Strip out the '(package version text)' and then look for a ##.## string.

Signed-off-by: Bill Pringlemeir <bpringlemeir@nbsps.com>
Tested-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
2015-01-08 11:00:45 -05:00
Masahiro Yamada
73c2575306 scripts: fix binutils-version.sh
The current binutils-version.sh expects the version string at the end
of the first line.  It turned out to not work with Linaro toolchain:
It has "Linaro 2014.09" at the back.

To fix this issue, let's parse the word right after the close
parenthesis.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Reported-by: York Sun <yorksun@freescale.com>
Acked-by: Dirk Behme <dirk.behme@gmail.com>
2014-12-29 16:31:23 -05:00
Peter Kümmel
60cd06e13c kconfig: Fix warning "‘jump’ may be used uninitialized"
Warning:
In file included from scripts/kconfig/zconf.tab.c:2537:0:
scripts/kconfig/menu.c: In function ‘get_symbol_str’:
scripts/kconfig/menu.c:590:18: warning: ‘jump’ may be used uninitialized in this function [-Wmaybe-uninitialized]
     jump->offset = strlen(r->s);

Simplifies the test logic because (head && local) means (jump != 0)
and makes GCC happy when checking if the jump pointer was initialized.

Signed-off-by: Peter Kümmel <syntheticpp@gmx.net>
Signed-off-by: Michal Marek <mmarek@suse.cz>
[ imported from Linux Kernel, commit 2d5603060967 ]
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-12-08 09:35:48 -05:00
Daniel Schwierzeck
e19db555b4 Kbuild: introduce Makefile in arch/$ARCH/
Introduce a Makefile under arch/$ARCH/ and include it in the
top Makefile (similar to Linux kernel). This allows further
refactoringi like moving architecture-specific code out of global
makefiles, deprecating config variables (CPU, CPUDIR, SOC) or
deprecating arch/$ARCH/config.mk.

In contrary to Linux kernel, U-Boot defines the ARCH variable by
Kconfig, thus the arch Makefile can only included conditionally
after the top config.mk.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Acked-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-12-08 09:35:45 -05:00
Daniel Schwierzeck
27e77183a1 get_maintainer.pl: fix source tree detection
get_maintainer.pl always fails with following message:
./scripts/get_maintainer.pl: The current directory does not appear to be a linux kernel source tree.

This was caused by commit:

commit 548b310c68
Author: Masahiro Yamada <yamada.m@jp.panasonic.com>
Date:   Thu Oct 30 15:50:15 2014 +0900

    Remove the CREDITS file

    This file is not maintained these days.

    We use MAINTAINERS for the maintainership of the supported boards.
    For dead boards, we have some clues in doc/README.scrapyard and
    also imperishable history in git-log.

Remove CREDITS from source tree detection to fix this.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
2014-12-08 09:35:41 -05:00
Simon Glass
5c30bf435f Align embedded device tree correctly
Device trees must be aligned to a 4-byte boundary. This was dropped in the
Kbuild conversion. Bring it back, and use 16-byte alignment for good
measure.

Signed-off-by: Simon Glass <sjg@chromium.org>
2014-11-25 06:33:58 -07:00
Tom Rini
1739564e75 Merge git://git.denx.de/u-boot-dm
Conflicts:
	drivers/serial/serial-uclass.c

Signed-off-by: Tom Rini <trini@ti.com>
2014-11-24 12:01:48 -05:00
Masahiro Yamada
167544e83a spl: fix descending condition to drivers/mtd/nand/
SPL should not reference CONFIG_CMD_NAND to decide whether or not
it should build drivers/mtd/nand.  CONFIG_CMD_NAND should be only
used to select the NAND utility command on the command parser.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-11-23 06:49:03 -05:00
Masahiro Yamada
165ecd26f0 kbuild: Descend into SOC directory from CPU directory
Some CPUs of some architectures have SOC directories.
At present, the build system directly descends into SOC directories
from the top Makefile, but it should generally descend into each
directory from its parent directory.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-11-23 06:49:02 -05:00
Simon Glass
1151651831 dm: spl: Allow driver model to be used
When enabled, set up driver model for SPL. This allows SPL to use the same
drivers as the main U-Boot.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Tom Rini <trini@ti.com>
2014-11-21 08:12:55 +01:00
Heiko Schocher
c001486d99 arm, at91: generate boot.bin file for all atmel SoC
generate the boot.bin file for all atmel SoC (arm920, arm926, armv7)

Signed-off-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Andreas Bießmann <andreas.devel@googlemail.com>
Reviewed-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
[fix subject]
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
2014-11-17 08:47:16 -05:00
Masahiro Yamada
06471dfc3d kbuild: Make scripts executable
The Makefiles call the respective interpreter explicitly, but this makes
it easier to use the scripts manually.

(This commit follows commit 06ed5c2bfaca of Linux Kernel)

Signed-off-by: Michal Marek <mmarek@suse.cz>
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-11-12 13:25:42 -05:00
Masahiro Yamada
176d098277 kbuild: sync misc scripts with Linux 3.18-rc1
This commit imports some updates in misc scripts from Linux 3.18-rc1.

[1] commit cbb4d3e6510b99522719c5ef0 by Horia Geanta
scripts/kernel-doc: handle object-like macros

[2] commit 164f0d2efaaef83 by Michal Marek
kbuild: Fix handling of backslashes in *.cmd files

[3] commit 270a00963cd367214e by Randy Dunlap
scripts/kernel-doc: recognize __meminit

[4] commit a4954fd7724c0f55361eb5 by Masahiro Yamada
  kbuild: remove obj-n and lib-n handling

[5] commit 5b2389b45d1a9c12b9f by Masahiro Yamada
kbuild: simplify build, clean, modbuiltin shorthands

Signed-off-by: Horia Geanta <horia.geanta@freescale.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-11-07 16:27:07 -05:00
Masahiro Yamada
ad618992f7 kconfig: sync kconfig files with Linux 3.18-rc1
This commit imports Kconfig updates from Linux 3.18-rc1.

'kvmconfig' and 'tinyconfig' help message have been commented out
since they are unavailable at least now;  in the future perhaps
we can implement 'tinyconfig' to disable most of CONFIG_CMD_* to
create a very small U-Boot image.

[1] commit 3aaefce10351 by Josh Triplett
x86, platform, kconfig: move kvmconfig functionality to a helper

[2] commit 0da1d4a0b951 by Josh Triplett
x86: Add "make tinyconfig" to configure the tiniest possible kernel

[3] commit c40724d3f381 by Brian Norris
  kconfig: lxdialog: fix spelling

[4] commit 7285996aa000 by Brian Norris
  kconfig: nconfig: fix multi-byte UTF handling

Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-11-07 16:27:07 -05:00
Masahiro Yamada
ffe29ebc07 kbuild: sync top Makefile with Linux 3.18-rc1
Since Linux 3.15, relative path feature and related fixes,
cleanups have been merged to the top Makefile.

The relative path feature looks stable enough, so let's import it
to U-Boot along with various cleanups.

Commits imported from Linux (some need adjustment) are:

[1] commit 7e1c04779efd by Michal Marek
  kbuild: Use relative path for $(objtree)

[2] commit 890676c65d69 by Michal Marek
  kbuild: Use relative path when building in the source tree

[3] commit 9da0763bdd82 by Michal Marek
  kbuild: Use relative path when building in a subdir of the source tree

[4] commit c2e28dc975ea by Michal Marek
  kbuild: Print the name of the build directory

[5] commit 066b7ed95580 by Michal Marek
  kbuild: Do not print the build directory with make -s

[6] commit 3f1d9a6cec01 by Michal Marek
  kbuild: make -s should be used with kernelrelease/kernelversion/image_name

[7] commit 7ff525712acf by Masahiro Yamada
  kbuild: fake the "Entering directory ..." message more simply

[8] commit 745a254322c8 by Masahiro Yamada
  kbuild: use $(Q) for sub-make target

[9] commit aa55c8e2f7a3 by Masahiro Yamada
  kbuild: handle C=... and M=... after entering into build directory

[10] commit ab7474ea5361 by Borislav Petkov
  Kbuild: Ignore GREP_OPTIONS env variable

To use relative path feature, tools/Makefile and scripts/Makefile.autoconf
must be tweaked.

Signed-off-by: Michal Marek <mmarek@suse.cz>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-11-07 16:27:06 -05:00
Masahiro Yamada
cb6e7b0db9 kbuild: improve multi-objs dependency and cleanups
Since Linux 3.18-rc1, Kbuild is able to handle multi-objs
dependency correctly, which also allows us futher cleanups
of some makefiles.

This commit imports those commits:

[1] commit c8589d1e9e01 by Masahiro Yamada
kbuild: handle multi-objs dependency appropriately

[2] commit 97e3226e6e98 by Masahiro Yamada
kbuild: handle the dependency of multi-objs hostprogs appropriately

[3] commit 022af62d0190 by Masahiro Yamada
kbuild: refactor script/kconfig/Makefile

[4] commit 221ecca6cafe by Masahiro Yamada
kbuild: remove redundant clean-files from scripts/kconfig/Makefile

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-11-07 16:27:06 -05:00
Masahiro Yamada
87e90729ea kbuild: bug fixes and cleanups of Makefile.host
This commit imports updates of scripts/Makefile.host
from Linux 3.18-rc1.

Imported commits are:

[1] commit d8d9efe22709 by Masahiro Yamada
  kbuild: fix a typo in scripts/Makefile.host

[2] commit edb950c17de0 by Masahiro Yamada
  kbuild: fix a bug of C++ host program handling

[3] commit 62e2210798ed by Masahiro Yamada
  kbuild: drop shared library support from Makefile.host

[4] commit 663935593915 by Masahiro Yamada
  kbuild: clean up scripts/Makefile.host

[5] commit 1791ff7179f6 by Masahiro Yamada
  kbuild: clean-up and bug fix of scripts/Makefile.host

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-11-07 16:27:06 -05:00
Ian Campbell
cbdd9a9737 sunxi: kconfig: Add %_felconfig rule to enable FEL build of sunxi platforms.
$ make BOARD_felconfig
is more convenient than
    $ make BOARD_defconfig
    $ echo CONFIG_SPL_FEL=y >> .config
    $ echo CONFIG_SPL_FEL=y >> spl/.config

Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2014-11-05 13:09:58 +01:00
Masahiro Yamada
15cfa32a22 kbuild: do not hide clang warnings during build with W=1
These lines originate in Linux;  it looks like Linux folks chose to
hide bunch of warnings reported by clang rather than fixing C code.

In U-boot, warnings are being fixed thanks to Jeroen's great efforts.
Let's stop suppressing clang warnings.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Jeroen Hofstee <jeroen@myspectrum.nl>
2014-11-04 15:01:56 -05:00
Robert P. J. Day
5699ea6d0e Correct two non-functional misspellings "overrided".
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
2014-10-27 17:54:11 -04:00
Masahiro Yamada
0732b2f96b kconfig: invoke silentoldconfig if spl, tpl/.config is updated
When spl/.config is updated by "make spl/menuconfig" or friends,
spl/include/config/auto.conf, spl/include/generated/autoconf.h
and some other files must be updated by "make silentoldconfig".

There is no hook for SPL in the top Makefile, so this commit
touches .config when spl/.config is updated to invoke silentoldconfig.
Likewise for TPL.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-10-23 13:19:13 -04:00
Masahiro Yamada
9adb6d2407 kbuild: fix a bug of the u-boot-spl link rule
cmd_u-boot-spl includes $(PLATFORM_LIBS) which changes
when CONFIG_USE_PRIVATE_GCC is updated.  The u-boot-spl image
should be re-linked if any prerequisite is newer than it
or the command line has changed.
$(call, if_changed,...) should be used instead of $(call cmd,...).

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-10-23 13:19:11 -04:00
York Sun
703a08f2b3 scripts/multiconfig.sh: Fix a typo
Fix the spelling of "configs".

Signed-off-by: York Sun <yorksun@freescale.com>
CC: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-10-10 09:44:45 -04:00
Jeroen Hofstee
16c429c9ea multiconfig.sh: replace GNU sed specific match
A SPL/TPL enabled target would was not recognized as
such by BSD sed, since it relies on a GNU extension.
Instead of or-ing just spell out both matches.

Cc: Masahiro Yamada <yamada.m@jp.panasonic.com>
Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
Acked-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-10-10 09:44:45 -04:00
Masahiro Yamada
717a23b871 kconfig: fix another bug of "make savedefconfig"
In some cases, the last lines of SPL or TPL are not output to a file.
The entries remaining in the "unmatched" variable must be flushed.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Simon Glass <sjg@chromium.org>
2014-10-10 09:44:42 -04:00
Joe Perches
e3a4facdfc checkpatch: remove unnecessary + after {8,8}
Pick the following commit from Linux kernel:
commit 66cb4ee0e52ca721f609fd5eec16187189ae5fda
Author: Joe Perches <joe@perches.com>
Date:   Wed Sep 10 09:40:47 2014 +1000

checkpatch: remove unnecessary + after {8,8}

There's a useless "+" use that needs to be removed as perl 5.20 emits a
"Useless use of greediness modifier '+'" message each time it's hit.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Tom Rini <trini@ti.com>
2014-09-25 09:31:24 -04:00
Masahiro Yamada
64147e564c kconfig: remove config_cmd_defaults.h
Now config_cmd_defaults.h is empty so it can be deleted safely.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Simon Glass <sjg@chromium.org>
2014-09-24 18:30:29 -04:00
Masahiro Yamada
11b5db6787 kconfig: add sanity checks for SPL configuration
For the SPL configuration, "make <dir>/<target>" is used.
Here,
  <dir> is either "spl" or "tpl"
  <target> is one of "config", "menuconfig", "xconfig", etc.

This commit adds two checks:

[1] If <dir> is given an unsupported subimage, the configuration
    should error out like this:

  $ make qpl/menuconfig
  ***
  *** "make qpl/menuconfig" is not supported.
  ***

[2] Make sure that "CONFIG_SPL" is enabled in the ".config" before
    running "make spl/menuconfig.  Otherwise, the SPL image
    is not built at all.  Having "spl/.config" makes no sense.
    In such a case, the configuration should exit with a message:

  $ make spl/menuconfig
  ***
  *** Create ".config" with "CONFIG_SPL" enabled
  *** before "make spl/menuconfig".
  ***

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Suggested-by: Simon Glass <sjg@chromium.org>
2014-09-16 12:23:59 -04:00
Masahiro Yamada
021f049597 scripts/Makefile.clean: clean also $(extra-m) and $(extra-)
This commit is a backport from Linux Kernel,
commit 9d5db8949f1ecf4019785b04d8986835d3c0e99e,
written by me.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-09-16 12:23:58 -04:00
Masahiro Yamada
8caaec6260 kconfig: show an error message when defconfig is not found
When a non-existing defconfig is specified,
display an easy-to-understand message
(fake the error message on Linux Kernel):

  $ make foo_defconfig
  ***
  *** Can't find default configuration "confis/foo_defconfig"!
  ***

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
2014-09-16 12:23:58 -04:00
Masahiro Yamada
dee745bf3d kconfig: fix savedefconfig to handle TPL correctly
Since 3ff291f371
(kconfig: convert Kconfig helper script into a shell script),
"make savedefconfig" of TPL boards has not been working.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Simon Glass <sjg@chromium.o.rg
Acked-by: Simon Glass <sjg@chromium.org>
2014-09-16 12:23:58 -04:00
Masahiro Yamada
8dffe663a2 kconfig: fix whitespace handling bug of savedefconfig
Commit 3ff291f371
(kconfig: convert Kconfig helper script into a shell script)
introduced another regression.

Shell usually handles whitespaces as separators,
so "make saveconfig" outputs

  # CONFIG_FOO is not set

into:

  #
  CONFIG_FOO
  is
  not
  set

Whitespaces should not be treated as separators here.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Simon Glass <sjg@chromium.org>
2014-09-16 12:23:58 -04:00
Masahiro Yamada
93481b9f6b kconfig: fix savedefconfig to output empty defconfig
Commit 3ff291f371
(kconfig: convert Kconfig helper script into a shell script)
introduced a minor regression.

make alldefconfig; make savedefconfig
should create an empty 'defconfig'.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Simon Glass <sjg@chromium.org>
2014-09-16 12:23:58 -04:00
Jeroen Hofstee
1401d87b44 cc-option: also detect unsupported warnings options
By default clang will echo a warning if a warning option is
unknown. Turning warnings into errors when polling for options
also catches such cases and prevents passing arguments to the
compiler which cause warnings.

cc: Masahiro Yamada <yamada.m@jp.panasonic.com>
cc: Tom Rini <trini@ti.com>
Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
2014-09-09 13:51:00 +02:00
Masahiro Yamada
d1b60d3407 README.kconfig: document backward compatibility "make *_config"
Commit 3ff291f371
(kconfig: convert Kconfig helper script into a shell script)
restored "<board>_config" target for backward compatibility.
It should be documented.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
2014-08-28 17:18:49 -04:00
Masahiro Yamada
a6f47d2434 scripts: refetch scripts/setlocalversion from Linux 3.16
Now we have CONFIG_LOCALVERSION and CONFIG_LOCALVERSION_AUTO
in Kconfig so we can use scripts/setlocalversion without
any adjustment.  Copy it from Linux 3.16 as is.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-08-28 17:18:48 -04:00
Masahiro Yamada
3ff291f371 kconfig: convert Kconfig helper script into a shell script
Commit 51148790 added scripts/multiconfig.py written in Python 2
to adjust Kconfig for U-Boot.

It has been hard for Python 3 users because Python 2 and Python 3
are not compatible with each other.

We are not happy about adding a new host tool dependency
(in this case, Python version dependency) for the core build process.
After some discussion, we decided to use only basic tools.

The script may get a bit more unreadable by shell scripting,
but we believe it is worthwhile.

In addition, this commit revives "<board>_config" target that is
equivalent to "<board>_defconfig" for backwards compatibility.
It is annoying to adjust various projects which use U-Boot.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Suggested-by: Igor Grinberg <grinberg@compulab.co.il>
Tested-by: Igor Grinberg <grinberg@compulab.co.il>
Acked-by: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@ti.com>
Cc: Jeroen Hofstee <jeroen@myspectrum.nl>
Cc: Stephen Warren <swarren@nvidia.com>
2014-08-22 10:41:50 -04:00
Masahiro Yamada
bf52b8ae9f scripts/Lindent: import from Linux 3.16
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-08-21 12:01:29 -04:00
Masahiro Yamada
9b586031db scripts: objdiff: sync with Linux 3.16
Import scripts/objdiff improvements from Linux v3.16, which
consists of 7 commits written by me.

  commit 7fa0e6db3cedc9b70d68a4170f1352e2b1aa0f90
  scripts: objdiff: support directories for the augument of record command

  commit 8ac28bee76eec006aac5ba5c418878a607d53a9b
  scripts: objdiff: fix a comment

  commit 8b5d0f20d64f00ffd5685879f8eb3659379f5aaa
  scripts: objdiff: change the extension of disassembly from .o to .dis

  commit 18165efa8203a34d82f60a1831ea290e7304c654
  scripts: objdiff: improve path flexibility for record command

  commit 1ecc8e489abfdaa6d8d1689f7ff62fdf1adda30c
  scripts: objdiff: remove unnecessary code

  commit 5ab370e91af70d5f1b1dbaec78798a2ff236a2d5
  scripts: objdiff: direct error messages to stderr

  commit fd6e12423311697860f30d10398a0f9eb91977d2
  scripts: objdiff: get the path to .tmp_objdiff more simply

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-08-21 12:01:11 -04:00
Masahiro Yamada
e773440425 kbuild: sync mixed targets handling with Linux 3.16
"make %_config all" was supported for the first time in U-Boot:
  commit 53bca5ab
  kbuild: support simultaneous board configuration and "make all"

Surprisingly it had not been working in Linux Kernel for a long time.

So I sent back the patch to the Linux Kbuild community and it was
accepted with a little code improvement, at commit 9319f453.

Now, you can do "make defconfig all" or "make %_defconfig all"
in Linux too.

This commit updates some scripts to fill the code-diff
between Linux and U-Boot.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-08-21 12:01:11 -04:00
Masahiro Yamada
6419e14492 kbuild: move extra gcc checks to scripts/Makefile.extrawarn
This commit was imported from Linux Kernel:
commit a86fe353 written by me.

W=... provides extra gcc checks.

Having such code in scripts/Makefile.build results in the same flags
being added to KBUILD_CFLAGS multiple times becuase
scripts/Makefile.build is invoked every time Kbuild descends into
the subdirectories.

Since the top Makefile is already too cluttered, this commit moves
all of extra gcc check stuff to a new file scripts/Makefile.extrawarn,
which is included from the top Makefile.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-08-21 12:01:11 -04:00
Masahiro Yamada
31e2141d5a tools, scripts: refactor error-out statements of Python scripts
In Python, sys.exit() function can also take an object other
than an integer.

If an integer is given to the argument, Python exits with the return
code of it.  If a non-integer argument is given, Python outputs it
to stderr and exits with the return code of 1.

That means,

    print >> sys.stderr, "Blah Blah"
    sys.exit(1)

is equivalent to

    sys.exit("Blah Blah")

The latter is a useful shorthand.

Note:
Some error messages in Buildman and Patman were output to stdout.
But they should go to stderr.  They are also fixed by this commit.
This is a nice side effect.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Simon Glass <sjg@chromium.org>
2014-08-21 12:01:11 -04:00
Daniel Schwierzeck
68dc8769e3 get_maintainer.pl: add support for scanning multiple MAINTAINERS files
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2014-08-09 11:17:05 -04:00
Daniel Schwierzeck
ee360cd26a get_maintainer.pl: adapt to U-Boot tree
Switch core maintainer to Tom Rini. Adapt directory layout for
git tree detection.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
2014-08-09 11:17:05 -04:00
Daniel Schwierzeck
92bca3981d get_maintainer.pl: import script from linux 3.15
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
2014-08-09 11:17:05 -04:00
Masahiro Yamada
51148790f2 kconfig: switch to Kconfig
This commit enables Kconfig.
Going forward, we use Kconfig for the board configuration.
mkconfig will never be used. Nor will include/config.mk be generated.

Kconfig must be adjusted for U-Boot because our situation is
a little more complicated than Linux Kernel.
We have to generate multiple boot images (Normal, SPL, TPL)
from one source tree.
Each image needs its own configuration input.

Usage:

Run "make <board>_defconfig" to do the board configuration.

It will create the .config file and additionally spl/.config, tpl/.config
if SPL, TPL is enabled, respectively.

You can use "make config", "make menuconfig" etc. to create
a new .config or modify the existing one.

Use "make spl/config", "make spl/menuconfig" etc. for spl/.config
and do likewise for tpl/.config file.

The generic syntax of configuration targets for SPL, TPL is:

  <target_image>/<config_command>

Here, <target_image> is either 'spl' or 'tpl'
      <config_command> is 'config', 'menuconfig', 'xconfig', etc.

When the configuration is done, run "make".
(Or "make <board>_defconfig all" will do the configuration and build
in one time.)

For futher information of how Kconfig works in U-Boot,
please read the comment block of scripts/multiconfig.py.

By the way, there is another item worth remarking here:
coexistence of Kconfig and board herder files.

Prior to Kconfig, we used C headers to define a set of configs.

We expect a very long term to migrate from C headers to Kconfig.
Two different infractructure must coexist in the interim.

In our former configuration scheme, include/autoconf.mk was generated
for use in makefiles.
It is still generated under include/, spl/include/, tpl/include/ directory
for the Normal, SPL, TPL image, respectively.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Simon Glass <sjg@chromium.org>
2014-07-30 08:48:03 -04:00
Masahiro Yamada
0a9064fb47 kconfig: import Kconfig files from Linux 3.16-rc7
Import
  - scripts/kconfig/*
  - include/linux/kconfig.h
from Linux 3.16-rc7.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2014-07-30 08:47:46 -04:00
Masahiro Yamada
b68a406263 scripts: add scripts/show-gnu-make to get GNU Make command name
U-Boot is expected to be built on various platforms.

We should keep in mind that the command 'make' is not always GNU Make,
while all the makefiles are written for GNU Make.

For example, on Linux, people generally do:

  make <board>_config; make

But FreeBSD folks do

  gmake <board>_config; gmake

(The command 'make' on FreeBSD is BSD Make, not GNU Make)

It is not a good idea to hard-code the command name 'make'
in MAKEALL or buildman.

They should call this helper script and get the command name
for GNU Make.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-07-29 11:48:36 -04:00
Masahiro Yamada
45765eeda2 scripts: add mailmapper, a tool to create/update mailmap file
This tool helps to create/update the mailmap file.

It runs 'git shortlog' internally and searches differently spelled author
names which share the same email address. The author name with the most
commits is asuumed to be a canonical real name. If the number of commits
from the cananonical name is equal to or greater than 'MIN_COMMITS' (=50),
the entry for the cananical name will be output. ('MIN_COMMITS' is used
here because we do not want to create a fat mailmap by adding every author
with only a few commits.)

If there exists a mailmap file specified by the mailmap.file configuration
options or '.mailmap' at the toplevel of the repository, it is used as
a base file.

The base file and the newly added entries are merged together and sorted
alphabetically (but the comment block is kept untouched), and then printed
to standard output.

 Usage
 -----

  scripts/mailmapper

prints the mailmapping to standard output.

  scripts/mailmapper > tmp; mv tmp .mailmap

will be useful for updating '.mailmap' file.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-07-22 07:44:27 -04:00
Tom Rini
39b6d07fd7 Merge branch 'master' of git://git.denx.de/u-boot-dm 2014-06-20 20:03:51 -04:00
Simon Glass
5957ac2a9f Makefile: Support include files for .dts files
Linux supports this, and if we are to have compatible device tree files,
U-Boot should also.

Avoid giving the device tree files access to U-Boot's include/ directory.
Only include/dt-bindings is accessible.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-06-20 11:55:03 -06:00
Masahiro Yamada
45f0ad9545 cosmetic: kbuild: clean-up coding style (sync with Linux 3.16-rc1)
Import the following trivial commits from Linux v3.16-rc1:

 bb66fc6 kbuild: trivial - use tabs for code indent where possible
 7eb6e34 kbuild: trivial - remove trailing empty lines
 3fbb43d kbuild: trivial - fix comment block indent
 38385f8 kbuild: trivial - remove trailing spaces

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-06-20 11:56:26 -04:00
Masahiro Yamada
c71630838d kbuild: move spl/Makefile to scripts/Makefile.spl
All files under spl/ and tpl/ are generated during the build process
except spl/Makefile.

We can simplify clean-rule and git-ignore by moving spl/Makefile
to somewhere else.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-06-11 16:27:05 -04:00
Masahiro Yamada
ba8dd7755e kbuild: move cmd_mkimage to scripts/Makefile.lib
Because cmd_mkimage is used in various subdirectories,
it seems reasonable to define it in scripts/Makefile.lib.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-06-05 17:01:58 -04:00
Masahiro Yamada
598e2d3388 kbuild: sync with Linux Kernel v3.15-rc1
This commit imports Kbuild-related updates
from v3.14 to v3.15-rc1.

 - commit 3d3d6b8474204b6819688c9800774d52d370a538
    kbuild: LLVMLinux: Adapt warnings for compilation with clang
 - commit 61163efae02040f66a95c8ed17f4407951ba58fa
    kbuild: LLVMLinux: Add Kbuild support for building kernel with Clang
 - commit 79192ca8ebd9a25c583aa46024a250fef1e7766f
    scripts: objdiff: detect object code changes between two commits
 - commit 1c9e70a55b088d97a59241744fe459409d0c3582
    kbuild: create a build directory automatically for out-of-tree build
 - commit a03fcb50e816a69acffb13b5e56db75063aeba8a
    kbuild: remove redundant '.*.cmd' pattern from make distclean
 - commit 13338935f1574a2dcd1c891461b0dcc42f8cff42
    kbuild: move "quote" to Kbuild.include to be consistent
 - commit bfdfaeae500a3b194b73b01e92a8034791a58b7f
    kbuild: specify build_docproc as a phony target
 - commit f4d4ffc03efc864645b990e1d579bbe1b8e358a4
    kbuild: dtbs_install: new make target
 - commit 1e64ff42ea3d8d2fc8aa71f9717b3c1cb6c2f893
    Kbuild, lto: Disable LTO for asm-offsets.c
 - commit ccbef1674a1579842c7dbdf554efca85d2cd245a
    Kbuild, lto: add ld-version and ld-ifversion macros
 - commit ae63b2d7bdd9bd66b88843be0daf8e37d8f0b574
    scripts/tags.sh: Ignore *.mod.c
 - commit e36aaea28972c57a32a3ba5365e61633739719b9
    kbuild: Fix silent builds with make-4

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-04-18 11:43:36 -04:00
Masahiro Yamada
6bd04bb487 kbuild: fix bugs in cleaning targets
"make clean", "make clobber", "make mrproper" and "make distclean"
missed to clean-up some files when they were run with
O=<some_dir> option.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Reported-by: Wolfgang Denk <wd@denx.de>
2014-03-28 15:06:32 -04:00
Masahiro Yamada
026f9cf24f kbuild: improve Kbuild speed
Kbuild brought about many advantages for us but a significant
performance regression was reported by Simon Glass.

After some discussions and analysis, it turned out
its main cause is in $(call cc-option,...).

Historically, U-Boot parses all config.mk
(arch/*/config.mk and board/*/config.mk)
every time descending into subdirectories.
That means cc-options are evaluated over and over again.

$(call cc-option,...) is useful but costly.
So we want to evaluate them only in ./Makefile
and spl/Makefile and export compiler flags.

This commit changes the build system as follows:

  - Modify scripts/Makefile.build to not include config.mk
    Instead, add $(PLATFORM_CPPFLAGS) to asflags-y, ccflags-y,
    cppflags-y.

  - Export many variables
    Going forward, Kbuild will not parse config.mk files
    when it descends into subdirectories.
    If we want to set variables in config.mk and use them
    in subdirectories, they must be exported.

    This is the list of variables to get exported:
      PLATFORM_CPPFLAGS
      CPUDIR
      BOARDDIR
      OBJCOPYFLAGS
      LDFLAGS
      LDFLAGS_FINAL
        (used in nand_spl/board/*/*/Makefile)
      CONFIG_STANDALONE_LOAD_ADDR
        (used in examples/standalone/Makefile)
      SYM_PREFIX
        (used in examples/standalone/Makefile)
      RELFLAGS
        (used in examples/standalone/Makefile)

  - Delete CPPFLAGS
    This variable has been replaced with PLATFORM_CPPFLAGS

  - Copy gcclibdir from example/standalone/Makefile
    to arch/sparc/config.mk
    The reference in CONFIG_STANDALONE_LOAD_ADDR must be
    resolved before it is exported.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Reported-by: Simon Glass <sjg@chromium.org>
Acked-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org> [on Sandbox]
Tested-by: Stephen Warren <swarren@nvidia.com> [on Tegra]
2014-03-07 10:59:06 -05:00
Tom Rini
6b9709d914 scripts: update checkpatch.pl to latest upstream version
Update to v3.14-rc4's version of checkpatch.pl.  In doing so we drop the
changes to top_of_kernel_tree() as we pass in --no-tree and drop our
changes about MAINTAINERS as that's for reporting checkpatch.pl problems
itself (and upstream has said they'll reword this section to be
clearer).

Signed-off-by: Tom Rini <trini@ti.com>
2014-03-04 12:15:30 -05:00
Tom Rini
eeb72e6761 Merge branch 'master' of git://git.denx.de/u-boot-arm
Conflicts:
	arch/arm/cpu/armv7/config.mk
	board/ti/am43xx/mux.c
	include/configs/am43xx_evm.h

Signed-off-by: Tom Rini <trini@ti.com>
2014-02-26 16:49:58 -05:00
Tom Rini
f503cc49a5 checkpatch.pl: Add warning for new __packed additions
While there are valid reasons to use __packed, often the answer is that
you should be doing something else here instead.

Signed-off-by: Tom Rini <trini@ti.com>
2014-02-26 21:19:29 +01:00
Masahiro Yamada
7424145f30 kbuild: consolidate version and timestamp headers generation
- Generate include/generated/{timestamp.h, version.h}
   more simply by using filechk rule.

 - Add $(UBOOTRELEASE) variable and re-write u-boot.imx rule
   more simply.

 - Rename U_BOOT_VERSION in Makefile to UBOOTVERSION

   Before this commit, the same variable name, "U_BOOT_VERSION"
   was used for two different strings.

   One of them was defined in Makefile.
   It takes the form like "2014.01-rc1" and used in
   makefiles and script files.

   The other is defined in include/generated/version.h
   It takes the form like "U-Boot 2014.01-rc1-00010-gbe6d426-dirty"
   and used in C and Aseembler.

   It is confusing when grepping the source tree. So, this commit
   renames the former to UBOOTVERSION.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-02-25 11:01:28 -05:00
Masahiro Yamada
5b1f1f4aff Makefile: add a new script to check -fstack-usage support
If -fstack-usage option is given to crosstools
that do not support it, gcc displays a warning message
but still exits with status 0.

This means we can not rely on $(call cc-option,...)
to detect if -fstack-usage option is supported or not.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-02-25 07:51:08 -05:00
Masahiro Yamada
5ab502cb89 dts: move device tree sources to arch/$(ARCH)/dts/
Unlike Linux Kernel, U-Boot historically had *.dts files under
board/$(VENDOR)/dts/ and *.dtsi files under arch/$(ARCH)/dts/.

I think arch/$(ARCH)/dts dicretory is a better location
to store both *.dts and *.dtsi files.

For example, before this commit, board/xilinx/dts directory
had both Microblaze dts (microblaze-generic.dts) and
ARM dts (zynq-*.dts), which are totally unrelated.

This commit moves *.dts to arch/$(ARCH)/dts/ directories,
allowing us to describe nicely mutiple DTBs generation in the next commit.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-02-19 11:10:05 -05:00
Masahiro Yamada
6ab6b2afa0 dts: re-write dts/Makefile more simply with Kbuild
Useful rules in scripts/Makefile.lib allows us to easily
generate a device tree blob and wrap it in assembly code.

We do not need to parse a linker script to get output format and arch.

This commit deletes ./u-boot.dtb since it is a copy of dts/dt.dtb.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-02-19 11:10:05 -05:00
Masahiro Yamada
ced032989a kernel-doc: update kernel-doc related files to Linux v3.13
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Simon Glass <sjg@chromium.org>
2014-02-19 11:10:04 -05:00
Masahiro Yamada
8fac9c7b7d kernel-doc: move kernel-doc tools to scripts/
tools/kernel-doc/docproc.c and tools/kernel-doc/kernel-doc are
files imported from Linux Kernel.

They originally resided under scripts/ directory in Linux Kernel.

This commit moves them to the original location.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Simon Glass <sjg@chromium.org>
2014-02-19 11:10:04 -05:00
Masahiro Yamada
9a368d0f58 kbuild: Do not generate .*.su files at the top directory
Without this workaround, you will see a lot of ".*.su" files
at the top directory after building with a compiler
which supports "-fstack-usage" option.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-02-19 11:10:04 -05:00
Masahiro Yamada
efcf861931 kbuild: use scripts/Makefile.clean
This commit refactors cleaning targets such as
clean, clobber, mrpropper, distclean
with scripts/Makefile.clean.

By using scripts/Makefile.clean, we can recursively descend
into subdirectories and delete generated files there.

We do not need add a big list of generated files
to the "clean" target.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-02-19 11:10:04 -05:00
Masahiro Yamada
01072b44db kbuild: move include directives of board configuration files
This commit changes the location of include directives
of board configuration files.

The purpose of this change is:
 - Slim down $(TOPDIR)/config.mk
 - Prevent $(TOPDIR)/Makefile from including the same
    configuration file twice
 - Do not include include/config.mk multiple times
    because ARCH, CPU, BOARD, VENDOR, SOC are exported

Before this commit:

 - include/autoconf.mk was included from $(TOPDIR)/Makefile
   and $(TOPDIR)/config.mk
   (This means $(TOPDIR)/Makefile included include/autoconf.mk twice)

 - include/{spl,tpl}-autoconf.mk was included from $(TOPDIR)/config.mk

 - include/config.mk was included from $(TOPDIR)/Makefile
   and $(TOPDIR)/config.mk
   (This means $(TOPDIR)/Makefile included include/config.mk twice)

After this commit:

 - include/autoconf.mk is included from $(TOPDIR)/Makefile
   and $(TOPDIR)/scripts/Makefile.build

 - include/{spl,tpl}-autoconf.mk is included from $(TOPDIR)/spl/Makefile
   and $(TOPDIR)/scripts/Makefile.build

 - include/config.mk is included from $(TOPDIR)/config.mk and
   $(TOPDIR)/spl/Makefile

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-02-19 11:07:51 -05:00
Masahiro Yamada
f2d293d0f8 kbuild: delete temporary build scripts
We had switched to Kbuild.
We do not need old build scripts any more.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-02-19 11:07:50 -05:00
Masahiro Yamada
6825a95b0b kbuild: use Linux Kernel build scripts
Now we are ready to switch over to real Kbuild.

This commit disables temporary scripts:
  scripts/{Makefile.build.tmp, Makefile.host.tmp}
and enables real Kbuild scripts:
  scripts/{Makefile.build,Makefile.host,Makefile.lib}.

This switch is triggered by the line in scripts/Kbuild.include
  -build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build.tmp obj
  +build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build obj

We need to adjust some build scripts for U-Boot.
But smaller amount of modification is preferable.

Additionally, we need to fix compiler flags which are
locally added or removed.

In Kbuild, it is not allowed to change CFLAGS locally.
Instead, ccflags-y, asflags-y, cppflags-y,
CFLAGS_$(basetarget).o, CFLAGS_REMOVE_$(basetarget).o
are prepared for that purpose.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Tested-by: Gerhard Sittig <gsi@denx.de>
2014-02-19 11:07:50 -05:00
Masahiro Yamada
22433fc54b kbuild: import more build scripts from Linux v3.13 tag
This commit imports build scripts from Linux Kernel v3.13
as they are.

I know they include some trailing spaces
but I am intentionally keeping them untouched.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-02-19 11:07:50 -05:00
Masahiro Yamada
ec626f1139 Makefile: rename scripts/Makefile.build to scripts/Makefile.build.tmp
Some build scripts including scripts/Makefile.build
will be imported from Linux Kernel in the next commit.
We need to adjust them for U-Boot in the following commits.

To make it easier for reviewers to track the modification,
this commit renames scripts/Makefile.build to
scripts/Makefile.build.tmp beforehand.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-02-19 11:07:50 -05:00
Masahiro Yamada
9e4140329e kbuild: change out-of-tree build
This commit changes the working directory
where the build process occurs.

Before this commit, build process occurred under the source
tree for both in-tree and out-of-tree build.

That's why we needed to add $(obj) prefix to all generated
files in makefiles like follows:
  $(obj)u-boot.bin:  $(obj)u-boot

Here, $(obj) is empty for in-tree build, whereas it points
to the output directory for out-of-tree build.

And our old build system changes the current working directory
with "make -C <sub-dir>" syntax when descending into the
sub-directories.

On the other hand, Kbuild uses a different idea
to handle out-of-tree build and directory descending.

The build process of Kbuild always occurs under the output tree.
When "O=dir/to/store/output/files" is given, the build system
changes the current working directory to that directory and
restarts the make.

Kbuild uses "make -f $(srctree)/scripts/Makefile.build obj=<sub-dir>"
syntax for descending into sub-directories.
(We can write it like "make $(obj)=<sub-dir>" with a shorthand.)
This means the current working directory is always the top
of the output directory.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Tested-by: Gerhard Sittig <gsi@denx.de>
2014-02-19 11:07:50 -05:00
Masahiro Yamada
bf4b3de101 kbuild: Use Kbuild.include
This commit adjusts some files to use Kbuild.include.

 - Use cc-option defined in Kbuild.include
    (Delete cc-option in config.mk)
 - Use cc-version defined in
    (Delete cc-version in config.mk)
 - Move binutils-version and dtc-version to Kbuild.include
     by analogy to cc-version

This commit also adds srctree (same as SRCTREE)
to use Kbuild scripts.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-02-19 11:07:50 -05:00
Masahiro Yamada
ceec4c8746 kbuild: import Kbuild.include from linux v3.13 tag
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-02-19 11:07:50 -05:00
Masahiro Yamada
5651ccffa4 Makfile: move suffix rules to Makefile.build
This commit moves suffix rules from config.mk
to scripts/Makefile.build, which will allow us
to switch smoothly to real Kbuild.

Note1:
post/lib_powerpc/fpu/Makefile has
its own rule to compile C sources.
We need to tweak it to keep the same behavior.

Note2:
There are two file2 with the same name:
arch/arm/lib/crt0.S and eamples/api/crt0.S.
To keep the same build behavior,
examples/api/Makefile also has to be treaked.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-02-19 11:07:50 -05:00
Masahiro Yamada
4a20df395d examples: Use scripts/Makefile.build
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-02-19 11:07:49 -05:00
Masahiro Yamada
ad71fa9971 Makefile.host.tmp: add a new script to refactor tools
This commit adds scripts/Makefile.host.tmp which will
be used in the next commit to convert makefiles
under tools/ directory to Kbuild style.

Notice this script, scripts/Makefile.host.tmp
is temporary.

When switching over to real Kbuild,
it will be replaced with scripts/Makefile.host of Linux Kernel.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-02-19 11:05:13 -05:00
Masahiro Yamada
dd88ab325c Makefile: Move some scripts imported from Linux
We have some scripts imported from Linux Kernel:
setlocalversion, checkstack.pl, checkpatch.pl, cleanpatch

They are located under tools/ directory in U-Boot now.
But they were originally located under scripts/ directory
in Linux Kernel.

This commit moves them to the original location.

It is true that binutils-version.sh and dtc-version.sh
do not originate in Linux Kernel, but they should
be moved by analogy to gcc-version.sh.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2013-12-13 09:18:45 -05:00
Masahiro Yamada
e5c5301f14 Makefile: make directories by Makefile.build
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2013-11-17 14:11:31 -05:00
Masahiro Yamada
3fdf5c8e94 Makefile: abolish COBJS, SOBJS, etc.
The support for COBJS, COBJS-y, SOBJS, SOBJS-y, GLCOBJS, GLSOBJS
from scripts/Makefile.build.
Going forward we need to use Kbuild style consistently.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2013-11-17 14:11:30 -05:00
Masahiro Yamada
ac7e735322 Makefile: support descending down to subdirectories
This patch tweaks scripts/Makefile.build to allow
the build system to descend into subdirectories like Kbuild.

To use this feature, use "obj-y += foo/" syntax.

Example:
    obj-$(CONFIG_FOO) += foo/

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Simon Glass <sjg@chromium.org>
2013-10-31 13:26:44 -04:00
Masahiro Yamada
ce28d7ac6d Makefile: prepare for using Kbuild-style Makefile
Every makefile in sub directories has common lines
at the top and the bottom.
This commit pushes the common parts into script/Makefile.build.

Going forward sub-makefiles only need to describe this part:

    COBJS := ...
    COBJS += ...
    SOBJS := ...

But using obj-y is preferable to prepare for switching to Kbuild.

The conventional (non-Kbuild) Makefile style is still supported.
This is achieved by greping the Makefile before entering into it.
U-Boot conventional sub makefiles always include some other makefiles.
So the build system searches a line beginning with "include" keyword
in the makefile in order to distinguish which style it is.
If the Makefile include a "include" line, we assume it is a conventional
U-Boot style. Otherwise, it is treated as a Kbuild-style makefile.

With this tweak, we can switch sub-makefiles
from U-Boot style to Kbuild style little by little.

obj-y := foo/
syntax (descending into the sub directory) is not supportd yet.
It will be implemented in the upcomming commit.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@ti.com>
2013-10-31 12:53:39 -04:00