Commit graph

56 commits

Author SHA1 Message Date
Tom Rini
051f409d25 pylibfdt: Allow version normalization to fail
In some cases, we might not have the sic portion of setuputils
available. Make our import and use of this be done in try/except blocks
as this is done to suppress a run-time warning that is otherwise
non-fatal.

Reported-by: Pali Rohár <pali@kernel.org>
Fixes: 1416591876 ("pylibfdt: Fix disable version normalization")
Signed-off-by: Tom Rini <trini@konsulko.com>
2023-01-07 18:02:26 -05:00
Philippe Schenker
1416591876 pylibfdt: Fix disable version normalization
On Arch Linux based systems python setuptools does not contain
"setuptools.extern" hence it is failing with the following
error-message:
"
ModuleNotFoundError: No module named 'setuptools.extern'
"

According to a eschwartz `setuptools.extern` is not a public API and
shall not be assumed to be present in the setuptools package. He
mentions that the setuptools project anyway wants to drop this. [1]

Use the correct solution introduced by python setuptools developers to
disable normalization. [2]

[1] https://bbs.archlinux.org/viewtopic.php?id=259608
[2] https://github.com/pypa/setuptools/pull/2026
Fixes: 440098c42e ("pylibfdt: Fix version normalization warning")
Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2023-01-06 08:14:19 -05:00
Marek Vasut
440098c42e pylibfdt: Fix version normalization warning
Fix the following version normalization warning:
"
/usr/lib/python3/dist-packages/setuptools/dist.py:530: UserWarning: Normalizing '2023.01' to '2023.1'
"

Using suggestion from Richard Jones:
https://github.com/pypa/setuptools/issues/308#issuecomment-405817468

Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-12-22 15:39:13 -05:00
Simon Glass
6b08fb5cc4 fdt: Move to setuptools
The distutils package is deprecated. The upstream libfdt repo uses
setuptools for building the pylibfdt module, so bring in that code,
suitably modified for U-Boot. Also bring in the README.

The modifications include setting the version correctly, making use of
the environment variables provided by the Makefile and various tweaks
to the directories.

Note that the version omits the minus character at the start of
EXTRAVERSION, since this creates a warning. The build is really just used
within U-Boot itself, so it doesn't matter too much if the version matches
upstream, or exactly matches U-Boot.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-10-29 07:36:33 -06:00
Michal Suchanek
7d01bb1c5a libfdt: Fix build with python 3.10
Python 3.10 requires defining PY_SSIZE_T_CLEAN. This will be fixed in
swig 4.10 but it is not clear when it will be released. There was a
warning since python 3.8.

Link: https://github.com/swig/swig/pull/2277

Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-10-29 07:36:33 -06:00
Michal Suchanek
c977b18435 libfdt: Fix invalid version warning
python does not like the u-boot- prefix in the version, drop it.

/usr/lib/python3.10/site-packages/setuptools/dist.py:544: UserWarning:
The version specified ('u-boot-2022.10') is an invalid version, this may
not work as expected with newer versions of setuptools, pip, and PyPI.
Please see PEP 440 for more details.

Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-10-29 07:36:33 -06:00
Philippe Reynes
70f42e720c scripts: dtc: libfdt: fdt_ro.c: always define fdt_check_full
On some configs (like stm32mp15_dhcom_basic_defconfig), if configs
SPL_LOAD_FIT_FULL and SPL_FIT_FULL_CHECK are enabled. Then the compilatio
fails with the following error:

arm-linux-gnueabi-ld.bfd: boot/image-fit.o: in function `fit_check_format':
<PATH>/uboot/u-boot-stm/boot/image-fit.c:1641: undefined reference to `fdt_check_full'
scripts/Makefile.spl:509: recipe for target 'spl/u-boot-spl' failed

This issue happens because the function fdt_check_full is only defined if
"!defined(FDT_ASSUME_MASK) || FDT_ASSUME_MASK != 0xff". But this function
may be called even if this condition are not verified. To avoid this issue,
the function fdt_check_full is always defined.

Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-02-22 10:05:44 -07:00
Heinrich Schuchardt
185f812c41 doc: replace @return by Return:
Sphinx expects Return: and not @return to indicate a return value.

find . -name '*.c' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

find . -name '*.h' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-01-19 18:11:34 +01:00
Wolfgang Denk
66356b4c06 WS cleanup: remove trailing empty lines
Signed-off-by: Wolfgang Denk <wd@denx.de>
2021-09-30 08:08:56 -04:00
Tom Rini
a2cfad8ecc pylibfdt: Rework "avoid unused variable warning" lines
Clang has -Wself-assign enabled by default under -Wall and so when
building with -Werror we would get an error here.  Inspired by Linux
kernel git commit a21151b9d81a ("tools/build: tweak unused value
workaround") make use of the fact that both Clang and GCC support
casting to `void` as the method to note that something is intentionally
unused.

Signed-off-by: Tom Rini <trini@konsulko.com>
2021-05-24 11:47:44 -04:00
Simon Glass
4b5019e3e5 dtc: Update the build rule for pylibfdt
Some versions of make complain about using a grouped target without a
recipe:

.../pylibfdt/Makefile:36: *** grouped targets must provide a recipe.  Stop.

Fix this by adding a dummy recipe.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-04-06 16:33:10 +12:00
Simon Glass
91f414b3a8 libfdt: Tidy up pylibfdt build rule
At present the build rule for pylibfdt depends on _libfdt.so but modern
Python versions add a different suffix to the output file, resulting in
something like _libfdt.cpython-38-x86_64-linux-gnu.so

The result is that pylibfdt is rebuilt every time.

Rename the file the standard name so that the rule works correctly. Also
add libfdt.py to the dependencies, so that file is always created if
missing.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-03-26 17:03:04 +13:00
Simon Glass
124c255731 libfdt: Check for multiple/invalid root nodes
It is possible to construct a devicetree blob with multiple root nodes.
Update fdt_check_full() to check for this, along with a root node with an
invalid name.

CVE-2021-27097

Signed-off-by: Simon Glass <sjg@chromium.org>
Reported-by: Bruce Monroe <bruce.monroe@intel.com>
Reported-by: Arie Haenel <arie.haenel@intel.com>
Reported-by: Julien Lenoir <julien.lenoir@intel.com>
2021-02-15 22:31:53 -05:00
Andre Przywara
832bfad745 libfdt: Fix signedness comparison warnings
This is a combination of upstream libfdt commits to fix warnings about
comparing signed and unsigned integers:
==========
scripts/dtc/libfdt/fdt.c: In function ‘fdt_offset_ptr’:
scripts/dtc/libfdt/fdt.c:137:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   if ((absoffset < offset)
...
==========

For a detailed description of the fixes, see the dtc repo:
https://git.kernel.org/pub/scm/utils/dtc/dtc.git/log/?id=73e0f143b73d808

For this patch the commits between 73e0f143b73d8088 and ca19c3db2bf62000
have been combined and adjusted for the slight differences in U-Boot's
libfdt code base.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2020-11-10 14:31:08 -05:00
Simon Glass
211cfa503f libfdt: Detected out-of-space with fdt_finish()
At present the Python sequential-write interface can produce an error when
it calls fdt_finish(), since this needs to add a terminating tag to the
end of the struct section.

Fix this by automatically expanding the buffer if needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-09-22 12:50:43 -06:00
Simon Glass
73bc9e2e21 binman: Adjust pylibfdt for incremental build
If the pylibfdt shared-object file is detected, then Python assumes that
the libfdt.py file exists also.

Sometimes when an incremental build aborts, the shared-object file is
built but the libfdt.py is not. The only way out at this point is to use
'make mkproper', or similar.

Fix this by removing the .so file before it is built. This seems to make
Python rebuild everything.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-07-24 19:25:15 -06:00
Tom Rini
7208396bbf Revert "Merge tag 'dm-pull-20jul20' of git://git.denx.de/u-boot-dm"
This reverts commit 5d3a21df66, reversing
changes made to 56d37f1c56.

Unfortunately this is causing CI failures:
https://travis-ci.org/github/trini/u-boot/jobs/711313649

Signed-off-by: Tom Rini <trini@konsulko.com>
2020-07-24 08:42:06 -04:00
Simon Glass
8beed3d7ac binman: Adjust pylibfdt for incremental build
If the pylibfdt shared-object file is detected, then Python assumes that
the libfdt.py file exists also.

Sometimes when an incremental build aborts, the shared-object file is
built but the libfdt.py is not. The only way out at this point is to use
'make mkproper', or similar.

Fix this by removing the .so file before it is built. This seems to make
Python rebuild everything.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-07-20 11:37:47 -06:00
Marcus Comstedt
42a768c689 libfdt: Remove superfluous NUL character from overlay symbols
The symbol path already ends with a NUL character (something which is
actually checked by the code) and this NUL is included in
rel_path_len, so there is no need to add a second one.

This change fixes incorrect display in "fdt list /__symbols" after
applying an overlay with symbols.

Signed-off-by: Marcus Comstedt <marcus@mc.pp.se>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-06-11 20:52:11 -06:00
Marek Vasut
c1bde2378a libfdt: Export overlay_apply_node() as fdt_overlay_apply_node()
This function is useful to merge a subset of DT into another DT, for
example if some prior-stage firmware passes a DT fragment to U-Boot
and U-Boot needs to merge it into its own DT. Export this function
to permit implementing such functionality.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Cc: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@konsulko.com>
2020-05-20 13:20:19 +02:00
Tom Rini
587e4a4296 kconfig / kbuild: Re-sync with Linux 4.19
Align Kconfig and Kbuild logic to Linux 4.19 release with minimal impact
on files outside of this scope.

Our previous Kconfig sync was done by commit 5972ff077e ("kconfig /
kbuild: re-sync with Linux 4.18").

In this particular re-sync in order to keep clang support working a
number of related changes needed to be pulled in that had been missed
previously.  Not all of these changes we easily traceable and so have
been omitted from the list below.

The imported Linux commits are:
[From prior to v4.18]
9f3f1fd29976 kbuild: Add __cc-option macro
d7f14c66c273 kbuild: Enable Large File Support for hostprogs
6d79a7b424a5 kbuild: suppress warnings from 'getconf LFS_*'
24403874316a Shared library support
86a9df597cdd kbuild: fix linker feature test macros when cross compiling with Clang
0294e6f4a000 kbuild: simplify ld-option implementation

[From v4.18 to v4.19]
96f14fe738b6 kbuild: Rename HOSTCFLAGS to KBUILD_HOSTCFLAGS
10844aebf448 kbuild: Rename HOSTCXXFLAGS to KBUILD_HOSTCXXFLAGS
b90a368000ab kbuild: Rename HOSTLDFLAGS to KBUILD_HOSTLDFLAGS
8377bd2b9ee1 kbuild: Rename HOST_LOADLIBES to KBUILD_HOSTLDLIBS
f92d19e0ef9b kbuild: Use HOST*FLAGS options from the command line
4ab3b80159d4 kconfig: check for pkg-config on make {menu,n,g,x}config
693359f7ac90 kconfig: rename SYMBOL_AUTO to SYMBOL_NO_WRITE
f60b992e30ff kbuild: replace $(LDFLAGS) $(ldflags-y) with $(ld_flags)
2fb9279f2c3e kbuild: change ld_flags to contain LDFLAGS_$(@F)
c931d34ea085 arm64: build with baremetal linker target instead of Linux when available
5accd7f3360e kconfig: handle format string before calling conf_message_callback()
a2ff4040151a kconfig: rename file_write_dep and move it to confdata.c
0608182ad542 kconfig: split out useful helpers in confdata.c
adc18acf42a1 kconfig: remove unneeded directory generation from local*config
79123b1389cc kconfig: create directories needed for syncconfig by itself
16952b77d8b5 kconfig: make syncconfig update .config regardless of sym_change_count
d6c6ab93e17f kbuild: remove deprecated host-progs variable
56869d45e364 kconfig: fix the rule of mainmenu_stmt symbol
c151272d1687 kconfig: remove unused sym_get_env_prop() function
1880861226c1 kconfig: remove P_ENV property type
e3fd9b5384f3 scripts/dtc: consolidate include path options in Makefile
4bf6a9af0e91 kconfig: add build-only configurator targets
f1575595d156 kconfig: error out when seeing recursive dependency
5e8c5299d315 kconfig: report recursive dependency involving 'imply'
f498926c47aa kconfig: improve the recursive dependency report
98a4afbfafd2 kconfig: fix "Can't open ..." in parallel build
9a9ddcf47831 kconfig: suppress "configuration written to .config" for syncconfig
87a32e624037 kbuild: pass LDFLAGS to recordmcount.pl
d503ac531a52 kbuild: rename LDFLAGS to KBUILD_LDFLAGS
217c3e019675 disable stringop truncation warnings for now
bc8d2e20a3eb kconfig: remove a spurious self-assignment
fd65465b7016 kconfig: do not require pkg-config on make {menu,n}config
5a4630aadb9a ftrace: Build with CPPFLAGS to get -Qunused-arguments

Note that this adds new cleanup work to do in that we should adapt the
shared library support we have to what is now upstream.

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Masahiro Yamada <masahiroy@kernel.org>
2020-04-10 11:18:32 -04:00
Rob Herring
6e916dfd9d scripts/dtc: Update to upstream version v1.4.6-21-g84e414b0b5bc
This adds the following commits from upstream:

84e414b0b5bc tests: Add a test case for the omit-if-no-ref keyword
4038fd90056e dtc: add ability to make nodes conditional on them being referenced
e1f139ea4900 checks: drop warning for missing PCI bridge bus-range
f4eba68d89ee checks: Print duplicate node name instead of parent name
46df1fb1b211 .travis.yml: Run valgrind checks via Travis
14a3002a1aee tests: Update valgrind suppressions for sw_tree1
02c5fe9debc0 tests: Remove valgrind error from tests/get_path
df536831d02c checks: add graph binding checks
2347c96edcbe checks: add a check for duplicate unit-addresses of child nodes
8f1b35f88395 Correct overlay syntactic sugar for generating target-path fragments
afbddcd418fb Suppress warnings on overlay fragments
119e27300359 Improve tests for dtc overlay generation

[From Linux Kernel commit 50aafd60898a8b3edf2f60e014a8288da3b2e5e3]
Signed-off-by: Rob Herring <robh@kernel.org>

[For applying to U-Boot]
Signed-off-by: Tom Rini <trini@konsulko.com>
2020-03-16 18:54:18 -04:00
Maxime Ripard
5ed2dc5623 dtc: add ability to make nodes conditional on them being referenced
This is needed when importing mainline DTs into U-Boot, as some started
using this /omit-if-no-ref/ tag, so won't compile with U-Boot's current
dtc copy. This is just a cherry-pick of the patch introducing this
feature.
Original commit message from Maxime:
------------------
A number of platforms have a need to reduce the number of DT nodes,
mostly because of two similar constraints: the size of the DT blob, and
the time it takes to parse it.

As the DT is used in more and more SoCs, and by more projects, some
constraints start to appear in bootloaders running from SRAM with an
order of magnitude of 10kB. A typical DT is in the same order of
magnitude, so any effort to reduce the blob size is welcome in such an
environment.

Some platforms also want to reach very fast boot time, and the time it
takes to parse a typical DT starts to be noticeable.

Both of these issues can be mitigated by reducing the number of nodes in
the DT. The biggest provider of nodes is usually the pin controller and
its subnodes, usually one for each valid pin configuration in a given
SoC.

Obviously, a single, fixed, set of these nodes will be used by a given
board, so we can introduce a node property that will tell the DT
compiler to drop the nodes when they are not referenced in the tree, and
as such wouldn't be useful in the targetted system.

Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-02-05 19:33:46 -07:00
Peter Robinson
018921ee79 Remove redundant YYLOC global declaration
Same as the upstream fix for building dtc with gcc 10.

Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
2020-01-30 13:30:35 -05:00
Tom Rini
e8c2d25845 libfdt: Revert 6dcb8ba4 from upstream libfdt
In upstream libfdt, 6dcb8ba4 "libfdt: Add helpers for accessing
unaligned words" introduced changes to support unaligned reads for ARM
platforms and 11738cf01f15 "libfdt: Don't use memcpy to handle unaligned
reads on ARM" improved the performance of these helpers.

In practice however, this only occurs when the user has forced the
device tree to be placed in memory in a non-aligned way, which in turn
violates both our rules and the Linux Kernel rules for how things must
reside in memory to function.

This "in practice" part is important as handling these other cases adds
visible (1 second or more) delay to boot in what would be considered the
fast path of the code.

Cc: Patrice CHOTARD <patrice.chotard@st.com>
Cc: Patrick DELAUNAY <patrick.delaunay@st.com>
Link: https://www.spinics.net/lists/devicetree-compiler/msg02972.html
Signed-off-by: Tom Rini <trini@konsulko.com>
Tested-by: Patrice Chotard <patrice.chotard@st.com>
2020-01-30 13:30:35 -05:00
Bartosz Golaszewski
163b7641f8 scripts: dtc: ignore files generated generated by python
Add __pycache__ to ignored files and extend the rule for _libfdt to also
include generated shared objects (e.g. _libfdt.cpython-37m-x86_64-linux-gnu.so).

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2019-11-23 14:53:48 -05:00
Simon Glass
97de532e59 pylibfdt: Correct the type for fdt_property_stub()
This function should use a void * type, not char *. This causes an error:

TypeError: in method 'fdt_property_stub', argument 3 of type 'char const *'

Fix it.

Signed-off-by: Simon Glass <sjg@chromium.org>
2019-11-04 18:15:32 -07:00
Simon Glass
903fe17aa8 pylibfdt: Sync up with upstream
Sync up the libfdt Python bindings with upstream, commit:

430419c (tests: fix some python warnings)

Signed-off-by: Simon Glass <sjg@chromium.org>
2019-11-04 18:15:32 -07:00
Simon Glass
b4cf5f1df7 pylibfdt: Convert to Python 3
Build this swig module with Python 3.

Signed-off-by: Simon Glass <sjg@chromium.org>
2019-11-04 18:15:32 -07:00
Simon Glass
f0921f5098 fdt: Sync up to the latest libfdt
Bring over the fdt from this commit:

430419c (origin/master) tests: fix some python warnings

adding in the 'assumptions' series designed to reduce code size.

Signed-off-by: Simon Glass <sjg@chromium.org>
2019-11-04 18:15:32 -07:00
Giulio Benetti
4ab6a45ec7 libfdt: fix typo on comment
Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
2019-10-15 08:40:03 -06:00
Matthias Brugger
8076fc298e libfdt: Allow #size-cells of 0
The commit "libfdt: fdt_address_cells() and fdt_size_cells()" introduced
a bug as it consolidated code between the helpers for getting
be 0, and is frequently found so in practice for /cpus.  IEEE1275 only
requires implementations to handle 1..4 for #address-cells, although one
could make a case for #address-cells == #size-cells == 0 being used to
represent a bridge with a single port.

While we're there, it's not totally obvious that the existing implicit
cast of a u32 to int will give the correct results according to strict C,
although it does work in practice.  Straighten that up to cast only after
we've made our range checks.

This is based on upstream commit:
b8d6eca ("libfdt: Allow #size-cells of 0")
but misses the test cases,as we don't implement them in U-Boot.

Signed-off-by: Matthias Brugger <mbrugger@suse.com>
2019-10-15 08:40:02 -06:00
Matthias Brugger
0ba41ce1b7 libfdt: return correct value if #size-cells property is not present
According to the device tree specification, the default value for
was not present.

This patch also makes fdt_address_cells() and fdt_size_cells() conform
to the behaviour documented in libfdt.h. The defaults are only returned
if fdt_getprop() returns -FDT_ERR_NOTFOUND, otherwise the actual error
is returned.

This is based on upstream commit:
aa7254d ("libfdt: return correct value if #size-cells property is not present")
but misses the test case part, as we don't implement them in U-Boot.

Signed-off-by: Matthias Brugger <mbrugger@suse.com>
2019-10-15 08:40:02 -06:00
Matthias Brugger
ce2dae3a44 libfdt: fdt_address_cells() and fdt_size_cells()
Add internal fdt_cells() to avoid copy and paste. Fix typo in
fdt_size_cells() documentation comment.

This is based in upstream commit:
c12b2b0 ("libfdt: fdt_address_cells() and fdt_size_cells()")
but misses the test cases, as we don't implement them in U-Boot.

Signed-off-by: Matthias Brugger <mbrugger@suse.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2019-10-15 08:40:02 -06:00
Simon Glass
89d66907b3 libfdt: Copy the struct region in fdt_resize()
At present this function appears to copy only the data before the struct
region and the data in the string region. It does not seem to copy the
struct region itself.

>From the arguments of this function it seems that it should support fdt
and buf being different. This patch attempts to fix this problem.

Upstream commit: c72fa77 libfdt: Copy the struct region in fdt_resize()

Signed-off-by: Simon Glass <sjg@chromium.org>
2019-07-29 09:38:06 -06:00
Thierry Reding
ea1df3e07c libfdt: Add phandle generation helper
The new fdt_generate_phandle() function can be used to generate a new,
unused phandle given a specific device tree blob. The implementation is
somewhat naive in that it simply walks the entire device tree to find
the highest phandle value and then returns a phandle value one higher
than that. A more clever implementation might try to find holes in the
current set of phandle values and fill them. But this implementation is
relatively simple and works reliably.

Also add a test that validates that phandles generated by this new API
are indeed unique.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2019-04-11 20:10:50 -06:00
Josef Lusticky
03e6151d5b pylibfdt: Use Python 2 in Makefile
pylibfdt needs Python 2 to build.
Replace $(PYTHON) with $(PYTHON2) in pylibfdt Makefile
to ensure Python 2 is used to build it.

This fixes build on systems where Python 3 is the default version
of the "python" interpreter.
Reviewed-by: Simon Glass <sjg@chromium.org>
2019-01-15 15:28:45 -05:00
Simon Glass
34967c2618 fdt: Add Python support for adding/removing nodes
Pull this support from these upstream commits:

   bfbfab0 pylibfdt: Add a means to add and delete notes
   9005f41 pylibfdt: Allow delprop() to return errors

Signed-off-by: Simon Glass <sjg@chromium.org>
2018-09-28 11:09:01 -06:00
Simon Glass
50c59522c2 libfdt: Update to latest pylibfdt implementation
The enhanced pylibfdt support in U-Boot needed for binman was a
placeholder while upstreaming of this work continued. This is now
complete, so bring in the changes and update the tools as needed.

There are quite a few changes since we decided to split the
implementation into three fdt classes instead of two.

The Fdt.del_node() method was unfortunately missed in this process and
will be dealt with later. It exists in U-Boot but not upstream.

Further syncing of libfdt probably needs to wait until we assess the
code-size impact of all the new checking code on SPL and possibly provide
a way to disable it.

Signed-off-by: Simon Glass <sjg@chromium.org>
2018-08-08 12:49:36 +01:00
Simon Glass
c640ed0ce6 libfdt: Add get_property() and del_node()
Add support for these functions in the Python binding. This patch stands
in for a pending upstream change.

Signed-off-by: Simon Glass <sjg@chromium.org>
2018-07-09 09:11:00 -06:00
Simon Glass
a1e0085519 libfdt: Fix the Python pack() function
This currently fails to reduce the device-tree bytearray size. Fix this.

This stands in for a pending upstream change.

Signed-off-by: Simon Glass <sjg@chromium.org>
2018-07-09 09:11:00 -06:00
Simon Glass
3def0cf238 libfdt: Bring in proposed pylibfdt changes
This provides various patches sent to the devicetree-compiler mailing list
to enhance the Python bindings. A final version of this patch may be
created once upstreaming is complete, but if it takes too long, this can
act as a placeholder.

New pylibfdt features:
- Support for most remaining, relevant libfdt functions
- Support for sequential-write functions

Changes are applied to existing U-Boot tools as needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
2018-07-09 09:11:00 -06:00
Eugeniu Rosca
82bca3625c scripts/dtc: Re-sync with Linux 4.17-rc4
To achieve a DTC state (more or less) equivalent to Linux 4.17-rc4,
backport the DTC-specific part from below Linux commits:

b23d1a241f4eb4 ("kbuild: add %.lex.c and %.tab.[ch] to 'targets' automatically")
9a8dfb394c0467 ("kbuild: clean up *.lex.c and *.tab.[ch] patterns from top-level Makefile")
59889300274569 (".gitignore: move *.lex.c *.tab.[ch] patterns to the top-level .gitignore")
e039139be8c251 ("scripts/dtc: generate lexer and parser during build instead of shipping")
b24413180f5600 ("License cleanup: add SPDX GPL-2.0 license identifier to files with no license")

With this commit, the diff between Linux and U-boot common DTC files is:
$ git diff --stat --diff-filter=M v4.17-rc4 <this-commit> -- scripts/dtc
  scripts/dtc/.gitignore | 2 +-
  scripts/dtc/Makefile   | 3 +++

The delta is coming from U-boot commits:
* v2017.11 de163ecedb ("scripts: dtc: Add .gitignore")
* v2018.01 15b97f5c5e ("pylibfdt: move pylibfdt to scripts/dtc/pylibfdt and refactor makefile")

Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-05-31 08:53:11 -04:00
Rob Herring
db405d1980 scripts/dtc: Update to upstream version v1.4.6-9-gaadd0b65c987
This adds the following commits from upstream:

aadd0b65c987 checks: centralize printing of property names in failure messages
88960e398907 checks: centralize printing of node path in check_msg
f1879e1a50eb Add limited read-only support for older (V2 and V3) device tree to libfdt.
37dea76e9700 srcpos: drop special handling of tab
65893da4aee0 libfdt: overlay: Add missing license
962a45ca034d Avoid installing pylibfdt when dependencies are missing
cd6ea1b2bea6 Makefile: Split INSTALL out into INSTALL_{PROGRAM,LIB,DATA,SCRIPT}
51b3a16338df Makefile.tests: Add LIBDL make(1) variable for portability sake
333d533a8f4d Attempt to auto-detect stat(1) being used if not given proper invocation
e54388015af1 dtc: Bump version to v1.4.6
a1fe86f380cb fdtoverlay: Switch from using alloca to malloc
c8d5472de3ff tests: Improve compatibility with other platforms
c81d389a10cc checks: add chosen node checks
e671852042a7 checks: add aliases node checks
d0c44ebe3f42 checks: check for #{size,address}-cells without child nodes
18a3d84bb802 checks: add string list check for *-names properties
8fe94fd6f19f checks: add string list check
6c5730819604 checks: add a string check for 'label' property
a384191eba09 checks: fix sound-dai phandle with arg property check
b260c4f610c0 Fix ambiguous grammar for devicetree rule
fe667e382bac tests: Add some basic tests for the pci_bridge checks
7975f6422260 Fix widespread incorrect use of strneq(), replace with new strprefixeq()
fca296445eab Add strstarts() helper function
cc392f089007 tests: Check non-matching cases for fdt_node_check_compatible()
bba26a5291c8 livetree: avoid assertion of orphan phandles with overlays
c8f8194d76cc implement strnlen for systems that need it
c8b38f65fdec libfdt: Remove leading underscores from identifiers
3b62fdaebfe5 Remove leading underscores from identifiers
2d45d1c5c65e Replace FDT_VERSION() with stringify()
2e6fe5a107b5 Fix some errors in comments
b0ae9e4b0ceb tests: Correct warning in sw_tree1.c

Commit c8b38f65fdec upstream ("libfdt: Remove leading underscores from
identifiers") changed the multiple inclusion define protection, so the
kernel's libfdt_env.h needs the corresponding update.

Signed-off-by: Rob Herring <robh@kernel.org>
[ Linux commit: 9130ba884640328bb78aaa4840e5ddf06ccafb1c ]
[erosca: - Fixup conflicts in include/linux/libfdt_env.h caused by v2018.03-rc4
           commit b08c8c4870 ("libfdt: move headers to <linux/libfdt.h>
	   and <linux/libfdt_env.h>")
	 - Fix build errors in lib/libfdt/fdt_ro.c, tools/libfdt/fdt_rw.c by:
	   - s/_fdt_mem_rsv/fdt_mem_rsv_/
	   - s/_fdt_offset_ptr/fdt_offset_ptr_/
	   - s/_fdt_check_node_offset/fdt_check_node_offset_/
	   - s/_fdt_check_prop_offset/fdt_check_prop_offset_/
	   - s/_fdt_find_add_string/fdt_find_add_string_/]
Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-05-31 08:53:11 -04:00
Rob Herring
072a2995bd scripts/dtc: Update to upstream version v1.4.5-6-gc1e55a5513e9
Pickup the fix for handling unresolved phandles in overlays.

This adds the following commits from upstream:

c1e55a5513e9 checks: fix handling of unresolved phandles for dts plugins
f8872e29ce06 tests: Avoid 64-bit arithmetic in assembler
48c91c08bcfa libfdt: add stringlist functions to linker script

Signed-off-by: Rob Herring <robh@kernel.org>
[ Linux commit: e45fe7f788dd1395befe5639149ad8dacfbd94ab ]
Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-05-31 08:53:11 -04:00
Marek Vasut
f919fbd350 pylibfdt: Add missing CC and LD to Makefile
Add missing CC and LDSHARED variables to the Makefile to pass the
correct C compiler and linker path to the build of _libfdt.so .

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Tom Rini <trini@konsulko.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Simon Glass <sjg@chromium.org>
Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-05-23 22:06:41 -04:00
Tom Rini
4549e789c1 SPDX: Convert all of our multiple license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have multiple licenses (in
these cases, dual license) declared in the SPDX-License-Identifier tag.
In this case we change from listing "LICENSE-A LICENSE-B" or "LICENSE-A
or LICENSE-B" or "(LICENSE-A OR LICENSE-B)" to "LICENSE-A OR LICENSE-B"
as per the Linux Kernel style document.  Note that parenthesis are
allowed so when they were used before we continue to use them.

Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 10:24:31 -04:00
Masahiro Yamada
94b13bbae9 host-tools: use python2 explicitly for shebang
All of these host tools are apparently written for Python2,
not Python3.

Use 'python2' in the shebang line according to PEP 394
(https://www.python.org/dev/peps/pep-0394/).

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-01-28 12:27:30 -05:00
Masahiro Yamada
d6a0c78a4e pylibfdt: compile pylibfdt only when dtoc/binman is necessary
Currently, pylibfdt is always compiled if swig is installed on your
machine.  It is really annoying because most of targets (excepts
x86, sunxi, rockchip) do not use dtoc or binman.

"checkbinman" and "checkdtoc" are wrong.  It is odd that the final
build stage checks if we have built necessary tools.  If your platform
depends on dtoc/binman, you must be able to build pylibfdt.  If swig
is not installed, it should fail immediately.

I added PYLIBFDT, DTOC, BINMAN entries to Kconfig.  They should be
property select:ed by platforms that need them.  Kbuild will descend
into scripts/dtc/pylibfdt/ only when CONFIG_PYLIBFDT is enabled.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-11-17 07:43:32 -05:00
Masahiro Yamada
15b97f5c5e pylibfdt: move pylibfdt to scripts/dtc/pylibfdt and refactor makefile
The pylibfdt is used by dtoc (and, indirectly by binman), but there
is no reason why it must be generated in the tools/ directory.

Recently, U-Boot switched over to the bundled DTC, and the directory
structure under scripts/dtc/ now mirrors the upstream DTC project.
So, scripts/dtc/pylibfdt is the best location.

I also rewrote the Makefile in a cleaner Kbuild style.

The scripts from the upstream have been moved as follows:

  lib/libfdt/pylibfdt/setup.py -> scripts/dtc/pylibfdt/setup.py
  lib/libfdt/pylibfdt/libfdt.i -> scripts/dtc/pylibfdt/libfdt.i_shipped

The .i_shipped is coped to .i during building because the .i must be
located in the objtree when we build it out of tree.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-11-17 07:43:32 -05:00