u-boot.git/scripts/dtc/libfdt, branch master

scripts/dtc: Update to upstream version v1.7.2-35-g52f07dcca47c

2026-01-05T15:01:59+00:00

Synchronize local copy of DTC with Linux 6.17 . This includes the
following picked and squashed commits from Linux kernel. The squash
was necessary, since the DTC here contains changes which were also
part of DTC in Linux alraedy, and the squash helped resolve those
without going back and forth with the changes.

The following commits from Linux are picked:

8f324cd712df7 # scripts/dtc: consolidate include path options in Makefile
b5b3d9b63b0ee # scripts/dtc: Add yamltree.c to dtc sources
7d97a76f226d6 # scripts/dtc: Update to upstream version v1.4.7-14-gc86da84d30e4
ea6f243be74e5 # scripts/dtc: Update to upstream version v1.4.7-57-gf267e674d145
02d435d4eccd8 # scripts/dtc: Update to upstream version v1.5.0-23-g87963ee20693
6e321b7637396 # scripts/dtc: Update to upstream version v1.5.0-30-g702c1b6c0e73
9f19ec91a7a35 # scripts/dtc: dtx_diff - add color output support
8287d642f38d1 # scripts/dtc: Update to upstream version v1.5.1-22-gc40aeb60b47a
4c52deef9225d # scripts/dtc: Revert "yamltree: Ensure consistent bracketing of properties with phandles"
5d3827e1452ed # scripts/dtc: Remove unused makefile fragments
40dd266887654 # scripts/dtc: Update to upstream version v1.6.0-2-g87a656ae5ff9
8d4cf6b6acb59 # scripts/dtc: use pkg-config to include  in non-standard path
b9bf9ace5ae90 # scripts/dtc: Update to upstream version v1.6.0-11-g9d7888cbf19c
69a883b6f5ac0 # scripts/dtc: dtx_diff - make help text formatting consistent
8f829108b8aed # scripts/dtc: only append to HOST_EXTRACFLAGS instead of overwriting
b39b4342ac495 # scripts/dtc: Update to upstream version v1.6.0-31-gcbca977ea121
93c6424c486b3 # scripts: dtc: Fetch fdtoverlay.c from external DTC project
0dd574a1d75c3 # scripts/dtc: Update to upstream version v1.6.0-51-g183df9e9c2b9
ec38b5df8a231 # scripts: dtc: Build fdtoverlay tool
a0c8c431411f5 # scripts: dtc: Remove the unused fdtdump.c file
e7dc653d4e890 # scripts/dtc: Add missing fdtoverlay to gitignore
d2bf5d2e3f09c # scripts/dtc: Update to upstream version v1.6.1-19-g0a3a9d3449c8
a60878f5532d0 # scripts/dtc: dtx_diff: remove broken example from help text
8b739d8658a9b # scripts/dtc: Call pkg-config POSIXly correct
b6eeafa67df00 # scripts/dtc: Update to upstream version v1.6.1-63-g55778a03df61
f96cc4c787588 # scripts/dtc: Update to upstream version v1.6.1-66-gabbd523bae6e
09ab9c092ef2b # scripts/dtc: Update to upstream version v1.7.0-93-g1df7b047fe43
ded8a5a498f2d # scripts/dtc: Update to upstream version v1.7.0-95-gbcd02b523429
ee6ff6fca7e71 # scripts/dtc: Update to upstream version v1.7.2-35-g52f07dcca47c

This also includes forward port of U-Boot commit
e8c2d25845c7 ("libfdt: Revert 6dcb8ba4 from upstream libfdt")
to avoid binary size growth.

Signed-off-by: Marek Vasut

scripts: Remove duplicate newlines

2024-07-15T18:12:18+00:00

Drop all duplicate newlines. No functional change.

Signed-off-by: Marek Vasut

scripts: dtc: libfdt: fdt_ro.c: always define fdt_check_full

2022-02-22T17:05:44+00:00

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':
/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 
Reviewed-by: Simon Glass

doc: replace @return by Return:

2022-01-19T17:11:34+00:00

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

libfdt: Check for multiple/invalid root nodes

2021-02-16T03:31:53+00:00

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 
Reported-by: Bruce Monroe 
Reported-by: Arie Haenel 
Reported-by: Julien Lenoir

libfdt: Fix signedness comparison warnings

2020-11-10T19:31:08+00:00

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

libfdt: Remove superfluous NUL character from overlay symbols

2020-06-12T02:52:11+00:00

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 
Reviewed-by: Simon Glass

libfdt: Export overlay_apply_node() as fdt_overlay_apply_node()

2020-05-20T11:20:19+00:00

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 
Signed-off-by: Marek Vasut 
Cc: Nobuhiro Iwamatsu 
Cc: Simon Glass 
Cc: Tom Rini

libfdt: Revert 6dcb8ba4 from upstream libfdt

2020-01-30T18:30:35+00:00

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 
Cc: Patrick DELAUNAY 
Link: https://www.spinics.net/lists/devicetree-compiler/msg02972.html
Signed-off-by: Tom Rini 
Tested-by: Patrice Chotard

fdt: Sync up to the latest libfdt

2019-11-05T01:15:32+00:00

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