This becomes important with gcc-4.9. Without this gcc assumes
that accessing NULL pointers traps and everything that happens
behind the access is not executed. This recently happened with
i.MX53 which has:
static int imx53_silicon_revision(void)
{
void __iomem *rom = MX53_IROM_BASE_ADDR;
rev = readl(rom + SI_REV);
...
}
This resulted in object code in which the last instruction is
the readl, the reset of the function is missing because gcc assumes this
is never executed.
Disable this optimization with -fno-delete-null-pointer-checks since
in barebox NULL pointers can indeed be valid.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Make 'check_file_size' more flexible by not hardcoding the file whose
size is going to be checked to '$@'. This way it is possible to use
this subroutine to check the size of files other than the target of
the rule.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Since commit 7fa10256c3 (defaultenv: Allow multiple
defaultenvironment overlays), barebox_default_env* is created
in the defaultenv/ directory. They are cleaned up when
"make clean" descends into the defaultenv/ directory.
We can simply delete "common/barebox_default_env*" from the
top Makefile.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Since commit a1a9665113 (kbuild: do not create symbolic link
include/asm), the symbolic link include/asm is not created.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Otherwise, "make mrproper" misses to delete some generated files
such as include/generated/compile.h.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Kbuild supports saving output files in a separate directory.
But the build directory must be created beforehand. For example,
$ mkdir -p dir/to/store/output/files
$ make O=dir/to/store/output/files defconfig
Creating a build directory automatically would be useful.
[ imported from Linux Kernel, commit 1c9e70a55b08 ]
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
There does not exist include/asm-$(SRCARCH) any more, so no point
to create a symbolic link to an empty directory.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
include/generated/autoconf.h is included from include/linux/kconfig.h
and we already have "-include $(srctree)/include/linux/kconfig.h"
just below.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch is based on these linux kernel commits:
commit d384e35a25445bb60457b7dab8cffe178c6b7ecb
Author: Linus Nilsson <lajnold@acc.umu.se>
Date: Sun Jan 20 17:10:01 2008 +0100
Makefile: Change typoed 'behavour' to 'behaviour'
commit fe8d0a41081d6d0912386f3672ccc0bf1d675630
Author: Kirill Smelkov <kirr@mns.spb.ru>
Date: Thu Apr 9 15:34:34 2009 +0400
kbuild: fix a few typos in top-level Makefile
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch is based on linux kernel commit
commit e1b8513d21845fbeb93d6d2c4973db874385059f
Author: Robert P. J. Day <rpjday@crashcourse.ca>
Date: Sun Feb 3 15:14:02 2008 +0200
Typoes: "whith" -> "with"
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Cc: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This should prevent us from ever again missing an
failure similar to that one fixed in ee3254569d
(EFI: add missing include) by throwing a build error.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This is a rewrite of the Documentation in reStructuredText format using
Sphinx as build system, see http://sphinx-doc.org/.
The documentation is built into static html pages with 'make docs'.
The pages can be found under Documentation/html after building.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The doxygen documentation is long outdated. Remove it. It will
be replaced with sphinx based documentation later.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
barebox used to have its own include/dt-bindings with files copied
from the corresponding kernel files. Use upstream dt-bindings directly
instead.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Sascha Hauer
Andrey Smirnov
Masahiro Yamada
Antony Pavlov
Lucas Stach
Robert P. J. Day