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>
This commit merges commonly-used header include paths
to UBOOTINCLUDE and NOSTDINC_FLAGS variables, which are placed
at the top Makefile.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Before this commit, most of compiler flags were defined in config.mk.
But it is redundant because config.mk is included from all recursive make.
This commit moves many complier flags to the top Makefile
and export them.
And we use new vaiarables to store them:
KBUILD_CPPFLAGS, KBUILD_CFLAGS, KBUILD_AFLAGS.
This will allow us to switch more smoothly to Kbuild.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
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>
This commit moves some variable definitions from config.mk
to the top Makefile:
- HOSTCC, HOSTCFLAGS, HOSTLDFLAGS
- AS, LD, CC, CPP, etc.
- SHELL (renamed to CONFIG_SHELL)
I'd like to slim down config.mk file
because it is included from all recursive make.
It is redundant to re-define the variables
every time descending into sub directories.
We should rather define them at the top Makefile
and export them.
U-Boot makefiles has been used "SHELL" variable to store shell
chosen for the user, whereas Linux Kernel uses "CONFIG_SHELL".
We should never use "SHELL" variable because it is
a special variable for GNU Make.
Changing SHELL may cause unpredictable side effects
whose root cause is usually difficult to find.
We should use a generic variable name "CONFIG_SHELL".
We should not use the syntax as follows either:
rm -f $(obj)tools/env/{fw_printenv,fw_setenv}
This depends on "bash" although GNU Make generally
invokes "sh" to run the each rule.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Some Samsung boards have their own tools under board/samsung/<board>/tools/.
This commit refactor more makefiles with "hostprogs-y".
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Before this commit, makefiles under tools/ directory
were implemented with their own way.
This commit refactors them by using "hostprogs-y" variable.
Several C sources have been added to wrap other C sources
to simplify Makefile.
For example, tools/crc32.c includes lib/crc32.c
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Rename CONFIG_PBLRCW_CONFIG and CONFIG_PBLRCW_CONFIG.
Also add their details in README.
Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
While performing relocations on u-boot.bin should be good enough for
booting on real hardware, some simulators insist on booting an ELF file
(and yet don't perform ELF relocations), so convert the relocated
binary back into an ELF file. This can go away in the future if we
change relocate-rela to operate directly on the ELF file, or if and
when we stop caring about a simulator with this restriction.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: David Feng <fenghua@phytium.com.cn>
ARM64 uses the newer RELA-style relocations rather than the older REL.
RELA relocations have an addend in the relocation struct, rather than
expecting the loader to read a value from the location to be updated.
While this is beneficial for ordinary program loading, it's problematic
for U-Boot because the location to be updated starts out with zero,
rather than a pre-relocation value. Since we need to be able to run C
code before relocation, we need a tool to apply the relocations at
build time.
In theory this tool is applicable to other newer architectures (mainly
64-bit), but currently the only relocations it supports are for arm64,
and it assumes a 64-bit little-endian target. If the latter limitation
is ever to be changed, we'll need a way to tell the tool what format
the image is in. Eventually this may be replaced by a tool that uses
libelf or similar and operates directly on the ELF file. I've written
some code for such an approach but libelf does not make it easy to poke
addresses by memory address (rather than by section), and I was
hesitant to write code to manually parse the program headers and do the
update outside of libelf (or to iterate over sections) -- especially
since it wouldn't get test coverage on things like binaries with
multiple PT_LOAD segments. This should be good enough for now to let
the manual relocation stuff be removed from the arm64 patches.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: David Feng <fenghua@phytium.com.cn>
u-boot-dtb-tegra.bin and u-boot-nodtb-tegra.bin binaries
are generated only if the SPL build is enabled as they have
dependency on SPL build
Signed-off-by: Vidya Sagar <vidyas@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
Before this commit, a broken pipe error sometimes happened
when building lcd4_lwmon5 board with Buildman.
This commit re-writes build rules of
u-boot.spr and u-boot-img-spl-at-end.bin
more simply without using a pipe.
Besides fixing a broken pipe error,
this commit gives us other advantages:
- Do not generate intermidiate files, spl/u-boot-spl.img
and spl/u-boot-spl-pad.img for creating u-boot.spr
- Do not generate an intermidiate file, u-boot-pad.img
for creating u-boot-img-spl-at-end.bin
Such intermidiate files were not deleted by "make clean" or "make mrpropr".
Nor u-boot-pad.img was ignored by git.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Stefan Roese <sr@denx.de>
Commit fea25720 renamed arch/i386 to arch/x86.
But it missed to modify examples/standalone/Makefile.
Since then, examples/standalone/82559_eeprom has
never compiled and nobody has noticed that.
After some discussion on ML, we agreed to delete this example.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
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>
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>
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>
$(LDSCRIPT) is a source file, not a generated file.
We do not need a make rule of $(LDSCRIPT).
And one more trivial fix:
$(obj)/u-boot should not dierectly depend on $(LDSCRIPTS).
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Some editors such as Emacs can highlight source files.
But their parser algorithm is not perfect.
If you use one double-quotation alone, some editor cannot
handle it nicely and mark source lines as a string by mistake.
It is preferable to use two double-quotations as a pair.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
The build rules of
- include/autoconf.mk.dep
- include/autoconf.mk
- include/spl-autoconf.mk
- include/tpl-autoconf.mk
were not nice.
They created empty files (which are never updated)
if an error occurs during preprocessing.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Given a multi-file image created through the mkimage's -d option:
$ mkimage -A x86 -O linux -T multi -n x86 -d vmlinuz:initrd.img:System.map \
multi.img
Image Name: x86
Created: Thu Jul 25 10:29:13 2013
Image Type: Intel x86 Linux Multi-File Image (gzip compressed)
Data Size: 13722956 Bytes = 13401.32 kB = 13.09 MB
Load Address: 00000000
Entry Point: 00000000
Contents:
Image 0: 4040128 Bytes = 3945.44 kB = 3.85 MB
Image 1: 7991719 Bytes = 7804.41 kB = 7.62 MB
Image 2: 1691092 Bytes = 1651.46 kB = 1.61 MB
It is possible to perform the innverse operation -- extracting any file from
the image -- by using the dumpimage's -i option:
$ dumpimage -i multi.img -p 2 System.map
Although it's feasible to retrieve "data files" from image through scripting,
the requirement to embed tools such 'dd', 'awk' and 'sed' for this sole purpose
is cumbersome and unreliable -- once you must keep track of file sizes inside
the image. Furthermore, extracting data files using "dumpimage" tool is faster
than through scripting.
Signed-off-by: Guilherme Maciel Ferreira <guilherme.maciel.ferreira@gmail.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
Current LDS files /DISCARD/ a lot of sections when linking ELF
files, causing diagnostic tools such as readelf or objdump to
produce partial output. Keep all section at link stage, filter
only at objcopy time so that .bin remains minimal.
Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
Reviewed-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Freescale DDR driver has been used for mpc83xx, mpc85xx, mpc86xx SoCs.
The similar DDR controllers will be used for ARM-based SoCs.
Signed-off-by: York Sun <yorksun@freescale.com>
All objects under api/ and examples/api/ directories are selected
by CONFIG_API.
So we can move CONFIG_API switch to the top Makefile.
In order to use CONFIG_API, the definition of SUBDIR_EXAMPLES-y
must be moved after "sinlude $(obj)include/autoconf.mk".
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
tools/updater needs board/MAI/AmigaOneG3SE board
for compiling.
But AmigaOneG3SE board was already deleted
by Commit 953b7e6.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Masahiro Yamada
Prabhakar Kushwaha
Tom Rini
Scott Wood
Vidya Sagar
Bo Shen
Guilherme Maciel Ferreira
Albert ARIBAUD
York Sun