Commit graph

5615 commits

Author SHA1 Message Date
Martí Bolívar
7c3b445323 edtlib: add Node.child_index()
It can be useful to know what the index of a particular child is in
the list of nodes. Add a a helper for computing that and some test
cases.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2022-03-24 10:48:40 +01:00
Yuriy Vynnychek
1c78447428 scripts: runners: spi_burn: replaced delay by wait for response
Replaced hard-coded delay by wait for response during ICEman
connection.

Signed-off-by: Yuriy Vynnychek <yura.vynnychek@telink-semi.com>
Signed-off-by: Alex Kolosov <rikorsev@gmail.com>
2022-03-23 18:33:24 +01:00
Mikkel Jakobsen
646499c36e twister: fix valgrind failure handling
falures found during valgrind execution were treated as normal test
failures, so the logger would display a link to handler.log and not to
valgrind.log, leading to some confusion.

the return code is now handled in a correct sequence.

Signed-off-by: Mikkel Jakobsen <mikkel.aunsbjerg@escolifesciences.com>
2022-03-23 09:21:50 -04:00
Mikkel Jakobsen
78aa424f69 twister: error if valgrind executable not found
if --enable-valgrind is selected but no valgrind executable can be
found in PATH, exit with an error

Signed-off-by: Mikkel Jakobsen <mikkel.aunsbjerg@escolifesciences.com>
2022-03-23 09:21:50 -04:00
Mikkel Jakobsen
9314f6e527 twister: add --track-origin to valgrind execution
generate full information when looking for uninitialized variables

Signed-off-by: Mikkel Jakobsen <mikkel.aunsbjerg@escolifesciences.com>
2022-03-23 09:21:50 -04:00
Michał Barnaś
a1ab8da862 kconfig: fix dt_node_has_prop and add nodelabel functions
The Kconfig function "dt_node_has_prop" was using label as its
parameter, where other functions use either chosen or path.
The documentation says that the parameter is path, so this patch
makes the function as documentation says and as other functions
in the file.
The additional nodelabel functions were added as counterparts that
are using nodes labels instead of paths.

Signed-off-by: Michał Barnaś <mb@semihalf.com>
2022-03-23 13:25:21 +01:00
Anas Nashif
ab9de7c6d7 twister: support retrying on build errors
Allow retries on build errors, this is now done using
--retry-build-errors. This option is useful when for example build
failures are caused by licensing issues or intermittent network issues.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2022-03-22 12:09:14 -04:00
Anas Nashif
becef8c83b twister: Improve counting and count at runtime
Do not wait till the end to update counters, do the counting at
realitime and reuse data for on-screen reporting.

Add a counter summary function for debugging.

This patch changes how we count and report skipped tests and the total
now has the skipped tests included.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2022-03-22 12:09:14 -04:00
Anas Nashif
cdc84dc8cf twister: remove commented logger call
Remove old commented logger call.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2022-03-22 12:09:14 -04:00
David Leach
c243da02ed code_relocation: Move NOCOPY flag to avoid OS drive colon
COPY/NOCOPY flag was added to the end of the string with ':'
as separators. The python script then split the line on ':'
which breaks on Windows build because the string was

[MEM]:[FILE]:[COPY]

In windows you will have 'c:\' in the file path so the
line.split() in script will split on the 'c:'.

Move the COPY/NOCOPY to:

[MEM]:[COPY/NOCOPY]:[FILE]

Note that the comments at top of gen_relocate_app.py also
indicates this format.

Fixes #43950

Signed-off-by: David Leach <david.leach@nxp.com>
2022-03-22 12:33:40 +01:00
Gerard Marull-Paretas
8b91cb0cd4 scripts: utils: pinctrl_nrf_migrate: support more peripherals
Add support for more peripherals:

- I2C
- SPI (master mode assumed)
- PDM
- QDEC
- QSPI
- PWM
- I2S

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
2022-03-21 15:09:28 +01:00
Erwan Gouriou
3b4544005c scripts/checkpatch: typdefsfile: Derogate on STM32Cube CMSIS *_TypeDef
Add a derogation to checkpatch's 'SPACING' rule, which randomly returns
the following type of issue when STM32Cube HAL *_TypeDef are used:

-:10: ERROR:SPACING: need consistent spacing around '*' (ctx:WxV)
#10: FILE: drivers/adc/adc_stm32.c:806:
+	ADC_TypeDef *adc = config->base;

This derogation applies to all _TypDef structures defined in STM32Cube
CMSIS descriptions:
FMC_Bank1E_6_TypeDef
DMA_Channel_TypeDef
ADC_TypeDef

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
2022-03-21 10:11:54 +01:00
Carlo Caione
bc72fb67b1 linker: Create sections from zephyr,memory-region nodes
Currently when a node has a 'zephyr,memory-region' compatible and a
'zephyr,memory-region' string property, a new memory region is created
in the linker script.

Having a memory region without a section to place variables in could be
not that useful. With this patch we extend the memory-region mechanism
to also create sections.

The user can then place variables in the sections as usual by using for
example the GCC attributes.

Signed-off-by: Carlo Caione <ccaione@baylibre.com>
2022-03-19 14:32:17 -04:00
Nazar Kazakov
f483b1bc4c everywhere: fix typos
Fix a lot of typos

Signed-off-by: Nazar Kazakov <nazar.kazakov.work@gmail.com>
2022-03-18 13:24:08 -04:00
Maciej Perkowski
62c7774014 twister: footprints: Move footprint calculation
Adds operation "gather_footprint" after the build stage
with minor refactoring. Before footprints were collected
only at the very end of the twister workflow
and there were situations were elf files were not available any more
(for qemu and --runtime-artifact-cleanup used).

Signed-off-by: Maciej Perkowski <Maciej.Perkowski@nordicsemi.no>
2022-03-17 18:23:59 -04:00
Daniel Leung
a5b33f89b7 scripts: gen_kobject_list: fix pylint complain on using keys()
This fixes a pylint complain on using .keys() while looping through
dictionary.

Signed-off-by: Daniel Leung <daniel.leung@intel.com>
2022-03-15 17:34:15 -04:00
Daniel Leung
7f8dba9d04 scripts: gen_kobject_list: linker section for _thread_idx_map
In some circumstances, _thread_idx_map[] is all zero and the linker
decides to put it into BSS instead of DATA section. This results in
kernel objects being pushed away so the hash table is no longer
valid. This forces _thread_idx_map to be in the data section inside
the intermediate object file so it will be placed in the data
section in final binary.

Fixes #43618

Signed-off-by: Daniel Leung <daniel.leung@intel.com>
2022-03-15 17:34:15 -04:00
Andreas Pettersson
d356280b54 twister: make git describe work without tags present
Git describe should work in eg. shallow clones when there are no tags.
Has been fixed in cmake previously, but not in twister.

Signed-off-by: Andreas Pettersson <andreaspettersson95@gmail.com>
2022-03-14 14:54:40 -04:00
Chen Peng1
1246404923 twister: fix skipped count issue in xml result with --only-failed.
When running twister with --only-failed option, based on last xml
result, the new skipped count should be the last skipped count
plus current skipped count.

Signed-off-by: Chen Peng1 <peng1.chen@intel.com>
2022-03-14 14:39:42 -04:00
enjia mai
be7dabed19 Revert "twister: passing the build dir to device serial pty"
This reverts commit 919b014509.
2022-03-11 17:57:04 -05:00
Marc Herbert
29fd1826cb sign.py: pass west -v flag(s) to rimage
Give rimage the same number of -v that were given to west.

Signed-off-by: Marc Herbert <marc.herbert@intel.com>
2022-03-11 11:52:38 -08:00
Enjia Mai
919b014509 twister: passing the build dir to device serial pty
Passing the zephyr build directory to the script run by
--device-serial-pty, it makes the feature of the device serial
pty more flexible.

Signed-off-by: Enjia Mai <enjia.mai@intel.com>
2022-03-10 13:29:06 -05:00
Damian Krolik
a505148d2f scripts: enforce module name uniqueness
Although CMake scripts already support duplicated module
names, if two modules with the same name provide different
Kconfig files, then both files will be loaded leading to
potential conflicts.

Modify zephyr_module.py to enforce that all modules are
uniquely named so that it is possbile to override some of
the built-in modules using ZEPHYR_EXTRA_MODULES variable.

Signed-off-by: Damian Krolik <damian.krolik@nordicsemi.no>
2022-03-10 09:47:58 -05:00
Henrik Brix Andersen
e9c9caa80d net: remove unmaintained 6LoCAN implementation
Remove the unmaintained, experimental 6LoCAN (IPv6 over CAN bus)
implementation.

Fixes: #42559

Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
2022-03-09 18:07:31 +01:00
Gerard Marull-Paretas
6b2391d000 scripts: ci: check_compliance: add check for boolean prompt text
Add a new check that enforces boolean's prompt to not start with
"Enable...".

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
2022-03-09 15:35:54 +01:00
Gerard Marull-Paretas
6a273838e4 scripts: checkpatch: allow parentheses around operators
Some macros, e.g., FOR_EACH_FIXED_ARG, require a separator argument that
needs to be in parentheses, e.g., (||). This should not trigger a
checkpatch warning.

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
2022-03-09 12:05:22 +01:00
Nicolas Pitre
1db5c8b948 scripts: gen_syscalls: fix argument marshalling with 64-bit debug builds
Let's consider this (simplified) compilation result of a debug build
using -O0 for riscv64:

|__pinned_func
|static inline int k_sem_init(struct k_sem * sem,
|                             unsigned int initial_count,
|                             unsigned int limit)
|{
|    80000ad0:   6105                    addi    sp,sp,32
|    80000ad2:   ec06                    sd      ra,24(sp)
|    80000ad4:   e42a                    sd      a0,8(sp)
|    80000ad6:   c22e                    sw      a1,4(sp)
|    80000ad8:   c032                    sw      a2,0(sp)
|        ret = arch_is_user_context();
|    80000ada:   b39ff0ef                jal     ra,80000612
|        if (z_syscall_trap()) {
|    80000ade:   c911                    beqz    a0,80000af2
|                return (int) arch_syscall_invoke3(*(uintptr_t *)&sem,
|                                    *(uintptr_t *)&initial_count,
|                                    *(uintptr_t *)&limit,
|                                    K_SYSCALL_K_SEM_INIT);
|    80000ae0:   6522                    ld      a0,8(sp)
|    80000ae2:   00413583                ld      a1,4(sp)
|    80000ae6:   6602                    ld      a2,0(sp)
|    80000ae8:   0b700693                li      a3,183
|    [...]

We clearly see the 32-bit values `initial_count` (a1) and `limit` (a2)
being stored in memory with the `sw` (store word) instruction. Then,
according to the source code, the address of those values is casted
as a pointer to uintptr_t values, and that pointer is dereferenced to
get back those values with the `ld` (load double) instruction this time.

In other words, the assembly does exactly what the C code indicates.
This is wrong for 2 reasons:

- The top half of a1 and a2 will contain garbage due to the `ld` used
  to retrieve them. Whether or not the top bits will be cleared
  eventually depends on the architecture and compiler.
- Regardless of the above, a1 and a2 would be plain wrong on a big
  endian system.
- The load of a1 will cause a misaligned trap as it is 4-byte aligned
  while `ld` expects a 8-byte alignment.

The above code happens to work properly when compiling with
optimizations enabled as the compiler simplifies the cast and
dereference away, and register content is used as is in that case.
That doesn't make the code any more "correct" though.

The reason for taking the address of an argument and dereference it as an
uintptr_t pointer is most likely done to work around the fact that the
compiler refuses to cast an aggregate value to an integer, even if that
aggregate value is in fact a simple structure wrapping an integer.

So let's fix this code by:

- Removing the pointer dereference roundtrip and associated casts. This
  gets rid of all the issues listed above.
- Using a union to perform the type transition which deals with
  aggregates perfectly well. The compiler does optimize things to the
  same assembly output in the end.

This also makes the compiler happier as those pragmas to shut up warnings
are no longer needed. It should be the same about coverity.

Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
2022-03-08 11:26:58 +01:00
Nicolas Pitre
df80c77ed8 scripts: gen_syscalls: fix access validation size on extra params array
It was one below the entire array size.

Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
2022-03-08 11:26:58 +01:00
Otavio Salvador
e2edb3e405 scripts: Allow use of bash outside of /bin
Even though bash is commonly available as /bin/bash there are
exceptions (e.g NixOS). This commit allow the use of the scripts in my
environment and is generic.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
2022-03-08 11:11:10 +01:00
Anas Nashif
dd651c0323 twister: add option to ignore skipped tests in reports
With --no-skipped-report, twister will skip over all tests marked as
skipped (filtered) in the junit report.

This is useful for CI where have 1000s of filtered tests that appear in
the report and in some cases cause tools parsing the output to fail or
provide incomplete results.

Fixes #38179

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2022-03-03 12:12:03 -05:00
Gerard Marull-Paretas
036b780c89 scripts: kconfig: update symbol info hint URL
Kconfig options are now in
http://docs.zephyrproject.org/latest/kconfig.html#CONFIG_XXX.

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
2022-03-03 08:30:25 -05:00
Maciej Perkowski
02f949401e twister: footprints: Fix missing memory footprints
Commit 28b2e55321 introduced a regression
into twister workflow, breaking memory footprint calculation.
The commit changed name of produced .elf files.
There is no more zephyr_prebuilt.elf and instead we have
zephyr_pre0.elf and zephyr_pre1.elf. This commit fixes a filter
telling which files to exclude when calculating memory footprints,
to match the current status.

Signed-off-by: Maciej Perkowski <Maciej.Perkowski@nordicsemi.no>
2022-03-02 10:02:40 -08:00
Markus Swarowsky
9510f96179 west: runners: Fix verify warning from nrfjprog
nrfjprog prints out a warning if a device is programed without the
--verify option, which can be confusing.
So added the option when programming with nrfjprog.
Then west flash can be used without getting a warning.
Also changed the tests to only accept programming with --verify
option.

Signed-off-by: Markus Swarowsky <markus.swarowsky@nordicsemi.no>
2022-03-01 08:41:40 -08:00
Henrik Brix Andersen
7249dab0c8 scripts: twister: harness: pytest: add support for custom cmd line args
Add support for passing custom command line arguments to a pytest
harness in twister.

Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
2022-02-28 12:18:48 -05:00
Henrik Brix Andersen
57a9f0431b scripts: ci: test_plan: use common code for finding matching boards
Use the common code in scripts/list_boards.py for finding matching
boards in scripts/ci/test_plan.py. This has the benefit of not trying to
use board revisions files as board names.

Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
2022-02-28 07:31:19 -08:00
Gregers Gram Rygg
4680180944 scripts: add board revision help text for west build
west build supports specifying the board revision using @revision, but
it's not mentioned in the help text. This commit updates the help text
to describe how to specify the board revision.

Signed-off-by: Gregers Gram Rygg <gregers.gram.rygg@nordicsemi.no>
2022-02-24 13:44:01 -08:00
Jingru Wang
eb614e268c scripts: twister: output error message
Sometimes custom script fails, but we can't see the
error information in twister log, because the twister
uses _ to ignore the stderr.

Signed-off-by: Jingru Wang <jingru@synopsys.com>
2022-02-22 18:52:39 -05:00
Marc Herbert
2fdc551acc sign.py: stop ignoring the -- -c foo.toml option passed to rimage
The -c option points rimage at its main and mandatory configuration
file ("signing schema"). The -c option passed by sign.py to rimage comes
from _two_ different places:

A. From the command line, example:

   west sign -t rimage -- OTHER_ARGS_FOR_RIMAGE -c foo.toml

However passing -- -c signing_schema.toml on the west sign command line
has always been optional because:

B. west sign systematically adds another `-c bar.toml` option. The name
   'bar' is found in the CMakeCache. Right now 'bar' comes from
   a product specific `board.cmake` file.

There were two problems fixed by this commit:

1. The -c option from the command line was passed _first_ but the last
   -c wins with rimage. The command line should have precedence.

2. The "last -c wins" behavior is not documented/official, it's an
   rimage implementation deteail.

To fix both, simply scan the command line for a '-c' option. If any is
found then it takes precedence over the CMakeCache-based value which is
dropped.

Signed-off-by: Marc Herbert <marc.herbert@intel.com>
2022-02-22 11:55:09 -08:00
Torsten Rasmussen
61453e4a58 cmake: Zephyr CMake package and CMake modules
Create a cmake/modules folder containing all Zephyr CMake modules.
All Zephyr cmake files that are included from boilerplate are now
converted into CMake modules which can be individually loaded.

The Zephyr CMake package is updated to support loading of individual
CMake modules using the COMPONENTS argument to `find_package(Zephyr)`.
If the COMPONENTS argument is not specified, the default Zephyr build
system will load.
If COMPONENTS is specified then, only those components and the
dependencies will be loaded.

If a Zephyr CMake module depends on another CMake module which has not
been loaded, it will automatically be loaded.

This allows us to modularize and reuse individual parts of the Zephyr
CMake build system in a more flexible way in future.

Such usage could be:
- Higher livel multi image build system
- Invocation of individual components, for example dts processing by
  twister without loading all build code
- Doc build
- Unittesting

With this new CMake package and CMake module scheme then direct
sourcing of boilerplate.cmake has been deprecated.

Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
2022-02-22 10:02:39 -08:00
Carles Cufi
e83a13aabf kconfig: Rename the TEST_EXTRA stack size option to align with the rest
All stack sizes should end with STACK_SIZE.

Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
2022-02-22 08:23:05 -05:00
Anas Nashif
c50966ac17 twister: support xt-sim as a runnable target
Use xt-sim to run Xtensa simulator in twister.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2022-02-21 22:10:42 -05:00
Carlo Caione
d3203dc70d code_relocation: Add NOCOPY feature
* Use case of interest:

Some platforms are shipping in parallel to the internal FLASH some other
storage / external FLASH (usually a QSPI FLASH) that can be used to
execute (XIP) code from.

The content of this external FLASH can usually be written at flash time
using proper tools (see for example the case of the external FLASH on
the nRF5340DK that can be written at flash time using nrfjprog).

The external FLASH is a nice addition that is extremely useful when a
large application code doesn't entirely fit on the internal FLASH so
that we could want to move part of it in the auxiliary FLASH to XIP the
code from there.

* The problem:

Right now Zephyr doesn't have a formal and generic way to move at build
time part of the code to a different memory region.

* The current status:

Zephyr is indeed shipping a code_relocation feature but that doesn't
entirely match our needs.

When XIP is enabled, the code_relocation feature is used in Zephyr to
move the selected code (that is to copy text section, to initialize data
and zero bss) from FLASH to SRAM at run time and execute code from SRAM.

The relocation is done by a generated snippet of code that is
memcpy()-ing the right content to the destination region also using some
build-time generated portions of linker script to retrieve start and
destination addresses and regions.

* This patch:

This patch is leveraging the code_relocation code and adding a NOCOPY
feature. This feature is using the code_relocation feature to
dynamically build the linker script snippets but entirely skipping the
run-time code relocation so that the code can be XIP-ed from the
destination region.

* Example:

Let's say that we have a big file called `huge_file.c` that we want to
XIP from the external FLASH that is mapped in an EXTFLASH region.

In this case we should enable `CONFIG_XIP` and
`CONFIG_CODE_DATA_RELOCATION` and instruct cmake as follows:

  zephyr_code_relocate(src/huge_file.c EXTFLASH_TEXT NOCOPY)
  zephyr_code_relocate(src/huge_file.c SRAM_DATA)

this means that:

- The .text section of the `huge_file.c` must reside in the EXTFLASH
  memory region and we do not need to copy the section there because we
  are going to XIP it (and we assume that the file is going to be placed
  in the external FLASH at flash time).
- The .data section of the `huge_file.c` must still reside in the SRAM
  memory region.

* TODOs:

It's desirable to have the possibility to relocate libraries and
pre-build files instead of source code files.

Signed-off-by: Carlo Caione <ccaione@baylibre.com>
2022-02-21 22:09:46 -05:00
Carlo Caione
3c0c03b9eb cmake: dts: Add dt_comp_path() cmake function
Add a new cmake extension function:

  dt_comp_path(<var> COMPATIBLE <compatible> [INDEX <idx>])

to get a list of paths for the nodes with the given <compatible>. This
is useful when we have to cycle through several nodes with the same
compatible.

Signed-off-by: Carlo Caione <ccaione@baylibre.com>
2022-02-21 22:02:04 -05:00
Chen Peng1
c0319cffa2 twister: add fixtures given by --fixture option to each devices.
fixtures could also be given by twister command with --fixture option
explicitly, not only hardware map file. In this case, we should
assign those fixtures to each devices too.

Signed-off-by: Chen Peng1 <peng1.chen@intel.com>
2022-02-21 21:59:50 -05:00
Nicolas Pitre
678b76e4b0 kernel/init.c: allow for memset/memcpy alternatives during early boot
Zeroing the BSS and copying data to RAM with regular memset/memcpy may
cause problems when those functions are assuming a fully initialized
system for their optimizations to work e.g. some instructions require
an active MMU, but turning the MMU on needs the .bss section to be
cleared first, etc.

Commit c5b898743a ("aarch64: Fix alignment fault on z_bss_zero()")
provides a detailed explanation of such a case.

Replacing z_bss_zero() with an architecture specific one is problematic
as the former may see new sections added to it that would be missed by
the later. The same reasoning goes for z_data_copy().

Let's make maintenance much easier by providing weak versions of
memset/memcpy that can be overridden by architecture-specific safe
versions when needed.

Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
2022-02-21 21:00:12 -05:00
Piotr Golyzniak
b618f4bf8e twister: add option to create shorter build paths
Add possibility to create shorter build paths when --short-build-path
option is enabled. This can help during run Twister on Windows OS and
building programs by CMake which has a problem when paths with building
files are too long. The solution based on symbolic links which help to
connect "traditional" long paths with shorter one like:
"twister_links/test_0".

Fixes #41929

Signed-off-by: Piotr Golyzniak <piotr.golyzniak@nordicsemi.no>
2022-02-21 19:39:32 -05:00
Gerard Marull-Paretas
724b042108 scripts: ci: check_compliance: check for (re)defined Kconfig symbols
Kconfig symbols must not be defined in Kconfig.defconfig.* files. Such
files are meant to change the default value of certain options.

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
2022-02-21 19:35:21 -05:00
Carlo Caione
ccf51e3cd3 gen_relocate_app: Create files from scratch, do not append
The problem with append is that when doing incremental (non-clean)
build, the content of these files are appended each time to the previous
leftover content.

Example:

 # west build -p -b qemu_cortex_m3 \
 	samples/application_development/code_relocation/

 #   // disable for example CONFIG_XIP

 # west build -b qemu_cortex_m3 \
        samples/application_development/code_relocation/

at this point the content of the generated files (i.e.
linker_relocate.ld) is wrong.

Signed-off-by: Carlo Caione <ccaione@baylibre.com>
2022-02-15 16:17:54 -05:00
Gerard Marull-Paretas
10da718fd7 doc: requirements: stick to breathe < 4.33
Looks like the 4.33 release has some more issues, so let's wait until
everything gets fixed before allowing future versions.

Ref. https://github.com/michaeljones/breathe/issues/805

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
2022-02-15 11:26:13 +01:00
Gerard Marull-Paretas
8889114e3c doc: requirements: disallow breathe 4.33.0
Sphinx 4.33.0 introduces Graphviz support, but the Graphviz
configuration value names clash with the Sphinx built-in Graphviz
extension.

Issue: https://github.com/michaeljones/breathe/issues/803

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
2022-02-14 10:00:41 +01:00