Commit graph

205 commits

Author SHA1 Message Date
Masahiro Yamada
19233d80bc kbuild: post: fix dependency tracking correctly
$(call if_changed,...) must take FORCE as a prerequite.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Simon Glass <sjg@chromium.org>
2014-03-04 09:27:38 -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
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
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
e8a8b8246a Makefile: Select objects by CONFIG_ rather than $(ARCH) or $(CPU)
Convert like follows:

 CPU mpc83xx  -> CONFIG_MPC83xx
 CPU mpc85xx  -> CONFIG_MPC85xx
 CPU mpc86xx  -> CONFIG_MPC86xx
 CPU mpc5xxx  -> CONFIG_MPC5xxx
 CPU mpc8xx   -> CONFIG_8xx
 CPU mpc8260  -> CONFIG_8260
 CPU ppc4xx   -> CONFIG_4xx
 CPU x86      -> CONFIG_X86
 ARCH x86     -> CONFIG_X86
 ARCH powerpc -> CONFIG_PPC

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2013-12-16 08:59:42 -05:00
Masahiro Yamada
755e08f0e5 post: descend only when CONFIG_HAS_POST is defined
All objects under post/ directory are enabled by CONFIG_HAS_POST.
(post/tests.o is enabled by CONFIG_POST_STD_LIST.
But CONFIG_POST_STD_LIST depends on CONFIG_HAS_POST.)

We can move CONFIG_HAS_POST switch to the top Makefile.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2013-12-13 09:17:33 -05:00
Masahiro Yamada
0e53691529 post: remove unnecessary include path settings
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2013-11-25 10:41:53 -05:00
Masahiro Yamada
a67cefc353 post: convert makefiles to Kbuild style
This commit also deletes post/rules.mk,
which in not necessary any more.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2013-11-01 11:42:12 -04:00
Wolfgang Denk
93e1459641 Coding Style cleanup: replace leading SPACEs by TABs
Signed-off-by: Wolfgang Denk <wd@denx.de>
[trini: Drop changes for PEP 4 following python tools]
Signed-off-by: Tom Rini <trini@ti.com>
2013-10-14 16:06:54 -04:00
Robert P. J. Day
1bce2aeb6f Cosmetic: Fix a number of typos, no functional changes.
Fix various misspellings of things like "environment", "kernel",
"default" and "volatile", and throw in a couple grammar fixes.

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
2013-09-20 10:30:54 -04:00
Wolfgang Denk
1a4596601f Add GPL-2.0+ SPDX-License-Identifier to source files
Signed-off-by: Wolfgang Denk <wd@denx.de>
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini <trini@ti.com>
2013-07-24 09:44:38 -04:00
Anatolij Gustschin
c55285015a post: fix I2C POST failure for devices in CONFIG_SYS_POST_I2C_IGNORES
Devices in CONFIG_SYS_POST_I2C_IGNORES list may be absent
and the rule is not to report I2C POST failure for devices
in this list. Currently this doesn't work since probing for
these devices isn't done and thus they are not marked as
successfully probed. Ignore optional devices when checking
for devices that didn't respond.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
2013-05-01 10:37:35 -04:00
Wolfgang Denk
1b0757eced PPC: remove dead boards (AMX860, c2mon, ETX094, IAD210, LANTEC, SCM)
These boards have long reached EOL, and there has been no indication
of any active users of such hardware for years.  Get rid of the dead
weight.

Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Wolfgang Grandegger <wg@denx.de>
2012-10-28 20:17:25 +01:00
Marek Vasut
036036d79c serial: Remove CONFIG_SERIAL_MULTI from remaining sources
Remove the parts depending either on disabled CONFIG_SERIAL_MULTI
or ifdefs around CONFIG_SERIAL_MULTI parts since CONFIG_SERIAL_MULTI
is now enabled by default.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Marek Vasut <marek.vasut@gmail.com>
Cc: Tom Rini <trini@ti.com>
Cc: Anatolij Gustschin <agust@denx.de>
Cc: Stefan Roese <sr@denx.de>
2012-10-15 11:53:59 -07:00
Valentin Longchamp
4e518b8875 post: remove #warning for kirkwood CPUs
Since commit 96f5c4b the needed functions (get_ticks() and get_tbclk() )
are defined for kirkwood CPUs as well. This warning is then not relevant
anymore.

Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com>
cc: Holger Brunck <holger.brunck@keymile.com>
cc: Prafulla Wadaskar <prafulla@marvell.com>
cc: Albert Aribaud <albert.u.boot@aribaud.net>
2012-03-30 18:21:09 +02:00
Simon Glass
770605e4f9 bootstage: Replace show_boot_progress/error() with bootstage_...()
These calls should not be made directly any more, since bootstage
will call the show_boot_...() functions as needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
2012-03-18 21:41:39 +01:00
Simon Glass
8ade950638 bootstage: Convert progress numbers 20-41 to enums
Signed-off-by: Simon Glass <sjg@chromium.org>
2012-03-18 21:16:22 +01:00
Simon Glass
5ddb118da4 bootstage: Use show_boot_error() for -ve progress numbers
Rather than the caller negating our progress numbers to indicate an
error has occurred, which seems hacky, add a function to indicate this.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Mike Frysinger <vapier@gentoo.org>
2012-03-18 20:56:00 +01:00
Wolfgang Denk
6751b05f85 Revert "post/Makefile: Only build FP post tests if enabled via CONFIG_SYS_POST_FPU"
This reverts commit 3e16abe0e4.

The logic of this patch is broken - testing for CONFIG_SYS_POST_FPU in
the Makefile cannot work, as this is only a bit that may (or may not)
be set in the CONFIG_POST variable.

The patch cases build errors on a number of boards, so we revert it.

Signed-off-by: Wolfgang Denk <wd@denx.de>
2012-03-12 15:00:23 +01:00
Mike Frysinger
23f1dded5e post: add blackfin to the post_time_ms list
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-02-12 15:03:25 -05:00
Kumar Gala
3e16abe0e4 post/Makefile: Only build FP post tests if enabled via CONFIG_SYS_POST_FPU
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-01-13 20:42:44 +01:00
Wolfgang Denk
7ddd4475a8 post/lib_powerpc/multi.c: fix stack overflow error
The code and comment disagreed: the comment claimed that r6...r31
were copied, and consequently the arrays for "src" and "dst" were
declared with 26 entries, but the actual code ("lmw r5,0(r3)" and
"stmw r5,0(r4)") copied _27_ words (r5 through r31), which resulted
in false "POST cpu Error at multi test" messages.

Fix the comment and the array sizes.

Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Anatolij Gustschin <agust@denx.de>
Cc: Stefan Roese <sr@denx.de>
Cc: Kumar Gala <galak@kernel.crashing.org>
Cc: Kim Phillips <kim.phillips@freescale.com>
Cc: Andy Fleming <afleming@gmail.com>
Acked-by: Anatolij Gustschin <agust@denx.de>
Tested-by: Anatolij Gustschin <agust@denx.de>
2011-12-23 20:08:10 +01:00
Wolfgang Denk
38081ff7a4 post/lib_powerpc/multi.c: code cleanup
Clean up and document the code:

- get rid of unneeded code block
- add comment which code is generated

Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Anatolij Gustschin <agust@denx.de>
Cc: Stefan Roese <sr@denx.de>
Cc: Kumar Gala <galak@kernel.crashing.org>
Cc: Kim Phillips <kim.phillips@freescale.com>
Cc: Andy Fleming <afleming@gmail.com>
Acked-by: Anatolij Gustschin <agust@denx.de>
2011-12-23 20:07:41 +01:00
Wolfgang Denk
a63aec54a4 post/lib_powerpc/multi.c: make checkpatch clean
Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Anatolij Gustschin <agust@denx.de>
Cc: Stefan Roese <sr@denx.de>
Cc: Kumar Gala <galak@kernel.crashing.org>
Cc: Kim Phillips <kim.phillips@freescale.com>
Cc: Andy Fleming <afleming@gmail.com>
Acked-by: Anatolij Gustschin <agust@denx.de>
2011-12-23 20:06:28 +01:00
Wolfgang Denk
139e1875d3 PPC: fix "Warning: FOO uses hard float, BAR uses soft float".
It appears that with recent versions of GCC the explicit
"-mhard-float" command line option takes precedence over the
``asm(".gnu_attribute 4, 2");'' in the source file, so this no longer
helps to avoid the warnings we get when linking code that uses FP
instructions with other code that was built using soft-float.

We can remove the ".gnu_attribute" (which appears to carry no other
information, at least so far) from the object files, but we also have
to make sure we don't pull in the __gcc_qsub() and __gcc_qmul()
functions from the standard libgcc, as these would again "infect" our
linking.  We copy this code from:
	gcc-4.2.2/gcc/config/rs6000/darwin-ldouble.c
This old version was chosen because it was still available under a
compatible license (GCC v2+).   The file was stripped down to the
needed parts, and reformatted so it passes checkpatch with only one
warning (do not add new typedefs).

Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Kumar Gala <galak@kernel.crashing.org>
Cc: Stefan Roese <sr@denx.de>
Cc: Andy Fleming <afleming@gmail.com>
Cc: Kim Phillips <kim.phillips@freescale.com>
Tested-by: Stefan Roese <sr@denx.de>
Tested-by: Anatolij Gustschin <agust@denx.de>
2011-12-23 20:03:55 +01:00
Holger Brunck
2f88566aaa post: fix compile issue for post tests on kirkwood
commit f31a911fe (arm, post: add missing post_time_ms for arm)
enables get_ticks and get_tbclk for all arm based boards,
but kirkwood has currently no implementation for this. So
undefine this for kirkwood boards.

Signed-off-by: Holger Brunck <holger.brunck@keymile.com>
cc: Heiko Schocher <hs@denx.de>
cc: Prafulla Wadaskar <prafulla@marvell.com>
cc: Valentin Longchamp <valentin.longchamp@keymile.com>
2011-12-11 13:44:23 +01:00
Christian Riesch
c90a4dd79c post/post.c: Use lldiv for 64-bit divisions
Signed-off-by: Christian Riesch <christian.riesch@omicron.at>
Cc: Tom Rini <trini@ti.com>
Cc: Heiko Schocher <hs@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
2011-12-10 23:15:14 +01:00
Wolfgang Denk
e607a15ddb post/board/lwmon5/gdc.c: Fix GCC 4.6 build warning
Fix:
gdc.c: In function 'gdc_test_reg_one':
gdc.c:66:6: warning: variable 'ret' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Stefan Roese <sr@denx.de>
Acked-by: Stefan Roese <sr@denx.de>
2011-12-02 00:14:40 +01:00
Stefan Roese
944416e07c 20001122-1.c: Fix GCC 4.6 build warning
Fix:
20001122-1.c: In function 'fpu_post_test_math1':
20001122-1.c:37:22: warning: variable 'p' set but not used [-Wunused-but-set-variable]

Signed-off-by: Stefan Roese <sr@denx.de>
2011-11-16 21:16:23 +01:00
Wolfgang Denk
4d6402b012 post/post.c: fix GCC 4.6 build warnings
Fix:
post.c: In function 'post_log':
post.c:425:7: warning: variable 'i' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Wolfgang Denk <wd@denx.de>
2011-11-03 20:44:18 +01:00
Wolfgang Denk
50da837663 post/post.c: CodingStyle cleanup
Make checkpatch-clean..

Signed-off-by: Wolfgang Denk <wd@denx.de>
Acked-by: Marek Vasut <marek.vasut@gmail.com>
2011-11-03 20:43:51 +01:00
Heiko Schocher
f31a911fe2 arm, post: add missing post_time_ms for arm
Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Albert ARIBAUD <albert.u.boot@aribaud.net>
2011-10-27 21:56:30 +02:00
Heiko Schocher
e92372c8a7 cosmetic, post: Codingstyle cleanup
Signed-off-by: Heiko Schocher <hs@denx.de>
2011-10-27 21:56:30 +02:00
Heiko Schocher
7b5d61b5a3 arm, post, memory: fix bug if sdram base != 0x00000000
commit 8d3fcb5e60 breaks post
memory support for sdram base != 0x00000000. Fix this.

Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Valentin Longchamp <valentin.longchamp@keymile.com>
Cc: Holger Brunck <holger.brunck@keymile.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
2011-10-23 23:32:44 +02:00
Valentin Longchamp
8d3fcb5e60 POST: add new memory regions test
This test is similar to the actual POST memory test but quicker and
far less complete. It checks the address and data lines and then only
tests some regularly placed sub regions of the RAM.
This can be useful when we want to test the RAM but we do not have enough
time to run the full memory test.

The POST memory test code was rearranged in order to avoid code duplication
between the two tests but the memory test functionnality remains the same.

Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com>
Signed-off-by: Holger Brunck <holger.brunck@keymile.com>
Ackey-by: Mike Frysinger <vapier@gentoo.org>
2011-10-05 22:03:11 +02:00
Valentin Longchamp
ca51d05758 POST: drivers/memory.c coding style cleanup
This is needed for a further patch adding a new memory test.

Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
2011-10-05 22:03:10 +02:00
Valentin Longchamp
212a0cafad POST: make env test flags fetching optional
Some boards have the environment variables defined in a slow EEPROM. post_run
accesses these environment variables to define which tests have to be run (in
post_get_flags). This is very slow before the code relocation on some boards
with a slow I2C EEPROM for environement variables.

This patch adds a config option to skip the fetching of the test flags in the
environment variables. The test flags assigned to the tests then only are the
ones statically defined for the test in post/tests.c.

Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com>
Signed-off-by: Holger Brunck <holger.brunck@keymile.com>
2011-10-05 22:03:10 +02:00
Valentin Longchamp
79843950b2 POST: add post_log_res field for post results in global data
The current post_log_word in global data is currently split into 2x
16 bits: half for the test start, half for the test success.
Since we alredy have more than 16 POST tests defined and more could
be defined, this may result in an overflow and the post_output_backlog
would not work for the tests defined further of these 16 positions.

An additional field is added to global data so that we can now support up
to 32 (depending of architecture) tests. The post_log_word is only used
to record the start of the test and the new field post_log_res for the
test success (or failure). The post_output_backlog is for this change
also adapted.

Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com>
2011-10-05 22:03:10 +02:00
Mike Frysinger
2151374fa6 Blackfin: post: generalize led/button tests with GPIOs
Make it easy for any Blackfin board to enable led/push button tests.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-09-29 16:38:05 -04:00
Heiko Schocher
4204298db0 post, memorytest: add support for none powerpc archs
change bd->bi_memsize to gd->ram_size, as this is defined
on all archs, so this post test can used on none powerpc
archs too.

Signed-off-by: Heiko Schocher <hs@denx.de>
cc: Wolfgang Denk <hs@denx.de>
cc: Mike Frysinger <vapier@gentoo.org>
2011-07-27 23:38:08 +02:00
Heiko Schocher
90ea601536 post, memorytest: fix if vstart is not = 0x0
Signed-off-by: Heiko Schocher <hs@denx.de>
2011-07-27 23:37:01 +02:00
James Kosin
975afc34dd post: fix indendation/brace confusion
The post.c code is missing braces around the pass case, and as a
result, the diagnostic function will post both fail and pass for
a failed test.  The reason for this bug is probably the incorrect
indentation used, so when reading the code it seems like there
are proper braces.

Indent the code to the correct depth and put proper braces around
the "else" branch of the "if" statement.

Signed-off-by: James Kosin <jkosin@intcomgrp.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-26 16:57:49 +02:00
Mike Frysinger
f6f7395eb3 post: new nor flash test
This adds a simple flash test to automatically verify erasing,
writing, and reading of sectors.  The code is based on existing
Blackfin tests but generalized for everyone to use.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-26 16:49:44 +02:00
Mike Frysinger
d2397817f1 post: use ARRAY_SIZE
We've got a handy dandy macro already for calculating the number of
elements in an array, so use it.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-26 16:48:33 +02:00
Mike Frysinger
9146d13821 post: add gpio hotkey support
Now that we have the generic GPIO layer, we can easily provide a common
implementation for the post_hotkeys_pressed() function based on it.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-26 16:47:39 +02:00
Kumar Gala
e009cdeb63 powerpc: Fix FPU post related link warnings
If we built POST on PPC's that didn't enable CONFIG_SYS_POST_FPU we'd
get the following warning with newer toolchains:

powerpc-linux-gnu-ld: Warning: lib_powerpc/fpu/libpostpowerpcfpu.o
		      uses hard float, libpost.o uses soft float

We actually worked around this sometime ago with the following commit:

commit ce82ff0538
Author: Yuri Tikhonov <yur@emcraft.com>
Date:   Sat Dec 20 14:54:21 2008 +0300

   FPU POST: fix warnings when building with 2.18 binutils

However, this only took into effect if CONFIG_SYS_POST_FPU was enabled.
We can simply move the GNU_FPOST_ATTR out of the CONFIG_SYS_POST_FPU
ifdef block to address the issue.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-01-25 21:16:08 +01:00
Stefan Roese
ac69243d83 ppc4xx/POST: Change ethernet test loop count to a default of 10
This patch changes the PPC4xx ethernet POST loop test count from
currently 192 (256 - 64) to a default of 10. While doing this the max
frame size is increased. Each loop run uses a different frame size,
starting with a max of 1514 bytes, down to 64. The default loop
count of 10 can be overriden using CONFIG_SYS_POST_ETH_LOOPS in the
board config header.

The TEST_NUM loop has been removed as it was never used.

The main reason for this change is to reduce the boot time on boards
using this POST test, like the lwmon5 board. This change reduces the
boot time by about 600ms on the lwmon5 board.

Signed-off-by: Stefan Roese <sr@denx.de>
Acked-by: Wolfgang Denk <wd@denx.de>
2010-12-17 09:44:32 +01:00
Stefan Roese
28e94bb2f7 ppc4xx/POST: Handle cached SDRAM correctly in Denali (440EPx) ECC POST
This patch fixes a problem in the Denali (440EPx) SDRAM ECC POST test.
When cache is enabled in the SDRAM area, the values written to SDRAM
need to be flushed from cache to SDRAM using the dcfb instruction.

Without this patch the POST ECC test failed. Now its working again on
platforms with cache enabled in SDRAM.

Signed-off-by: Stefan Roese <sr@denx.de>
2010-11-28 11:06:47 +01:00
Wolfgang Denk
b9d77535e9 Merge branch 'master' of git://git.denx.de/u-boot-i2c 2010-11-19 22:02:40 +01:00
Sebastien Carlier
6d8962e814 Switch from archive libraries to partial linking
Before this commit, weak symbols were not overridden by non-weak symbols
found in archive libraries when linking with recent versions of
binutils.  As stated in the System V ABI, "the link editor does not
extract archive members to resolve undefined weak symbols".

This commit changes all Makefiles to use partial linking (ld -r) instead
of creating library archives, which forces all symbols to participate in
linking, allowing non-weak symbols to override weak symbols as intended.
This approach is also used by Linux, from which the gmake function
cmd_link_o_target (defined in config.mk and used in all Makefiles) is
inspired.

The name of each former library archive is preserved except for
extensions which change from ".a" to ".o".  This commit updates
references accordingly where needed, in particular in some linker
scripts.

This commit reveals board configurations that exclude some features but
include source files that depend these disabled features in the build,
resulting in undefined symbols.  Known such cases include:
- disabling CMD_NET but not CMD_NFS;
- enabling CONFIG_OF_LIBFDT but not CONFIG_QE.

Signed-off-by: Sebastien Carlier <sebastien.carlier@gmail.com>
2010-11-17 21:02:18 +01:00