I think a lot of the confusion with promptless symbols being assigned
might come from opening zephyr/.config, seeing that it assigns a bunch
of promptless symbols, and assuming that Kconfig must respect those
assignments, even though it doesn't.
Explain why zephyr/.config assigns promptless symbols (it's because it
doubles as configuration output). That should clarify things a bit.
Also mention what "invisible" means for symbols early on in the page.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
Diagram and text improvements:
- Redraw the configuration phase diagram to better reflect the actual
logic. Remove some misleading arrows, like from devicetree.h to
Kconfig. Kconfig uses the devicetree scripts directly.
- After the old devicetree scripts were removed in commit c8c35f76ab
("scripts: dts: Remove deprecated extract_dts_includes.py script"),
the dtc compiler is only run to catch any high-level warnings and
errors from it. The output is unused.
Update the diagram and descriptions to explain how dtc is used.
- Mention kconfigfunctions.py and explain better how devicetree and
Kconfig interact
- Clarify that 'cpp' is the C preprocessor. People often confuse it
with C++.
- Fix a typo'd devicetree_fixups.h in the text
- Use the :file: role for files instead of italic text
- Add links to the devicetree and Kconfig sections of the manual, and
use the :zephyr_file: role to turn more files into direct links
- Make the text generic re. Make vs. Ninja
- Lots of other minor tweaks and clarifications
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
Patch introduce references to LittleFS instead of NFFS where it
was suitable. In other places NFFS mentions were removed
Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
Gerson Fernando Budke missed the Documentation Generation page. Nice to
link to it from the Documentation Guidelines page, in case people are
looking for documentation information and find it first.
Maybe the two pages could be put under a common Documentation section
too, though it's nice to have Documentation Generation clearly visible
in the top-level User Guides index.
Co-authored-by: Gerson Fernando Budke <nandojve@gmail.com>
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
List Documentation Guidelines right after Documentation Generation in
the index for User and Developer Guides. Makes it easier to spot.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
generated_dts_board.h is pretty redundant and confusing as a name. Call
it devicetree.h instead.
dts.h would be another option, but DTS stands for "devicetree source"
and is the source code format, so it's a bit confusing too.
The replacement was done by grepping for 'generated_dts_board' and
'GENERATED_DTS_BOARD'.
Two build diagram and input-output SVG files were updated as well, along
with misc. documentation.
hal_ti, mcuboot, and ci-tools updates are included too, in the west.yml
update.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
HAS_SEGGER_RTT is assigned by various Nordic boards, but assignments
have no effect on promptless symbols. This symbol is enabled through
being select'ed by SOC_SERIES_NRF52X.
Holyiot, nRF52833-PCA10100, nRF52840-PCA10056, and nRF52-PCA10040 only
assign HAS_SEGGER_RTT without assigning USE_SEGGER_RTT. They probably
meant to enable USE_SEGGER_RTT, so do that instead.
Also add a help text to HAS_SEGGER_RTT and a warning re. HAS_SEGGER_RTT
vs. USE_SEGGER_RTT to the documentation.
Flagged by https://github.com/zephyrproject-rtos/zephyr/pull/20742.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
'title:' was deprecated in commit 2934ee2cda ("dts: bindings: Remove
'title:' and put all info. into 'description:'"). Overlooked leftover.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
Unused after the old devicescript were removed in commit c8c35f76ab
("scripts: dts: Remove deprecated extract_dts_includes.py script"). The
old scripts relied on parsing the output of 'dts -Odts', which replaces
e.g. phandle references. The new scripts parse the DTS files directly.
Keep running the dtc compiler just to catch any warnings/errors from it.
The edit to doc/guides/build/build-config-phase.svg is to remove the box
with '*.dts_compiled' in it (and the arrows to/from it). https://draw.io
can be used to edit it.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
Rewrite most of the 'Input and output files' section to add more details
and implementation notes, and to make some description more more
concrete:
- Mention dtlib, edtlib, and gen_defines.py, and explain what they do
- Add an example of how macros get generated from the devicetree, and
explain the DT_<node>_<property> format of the generated identifiers.
Merge the 'Include files generation' section into the 'Input and
output files' section at the same time.
- Explain that the base devicetree and the overlays just get
concatenated, and why this works
- Add more details on how dts_fixup.h files work
- Mention that the C dtc compiler is only run to catch errors and
warnings from it
- Mention that the concatenated devicetree appears in
zephyr/<BOARD>.dts.pre.tmp
- Mention /include/, which is the native DTS mechanism for including
other files
- Misc. other minor tweaks
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
Turn the CONFIG_* identifiers in the /chosen table into links to the
Kconfig reference.
Also explain why devicetree information doesn't show up in the Kconfig
reference.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
It's cryptic that some identifiers for devicetree-related stuff start
with DT_*, while others start with CONFIG_*. Explain what's going on,
and link to the Kconfig preprocessor documentation.
Also remove an early mention of bindings that might be confusing.
Bindings are much more about checking devicetree conformance than about
controlling output, though they do some of that too.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
Not all /chosen properties were documented. Add the missing ones along
with the macros generated for them.
Found with some grepping for '\<zephyr,.*='.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
The *_ON_DEV_NAME macros generated from /chosen properties changed
prefix from DT_* to CONFIG_* in commit 8ce0cf0126 ("kconfig: Convert
device tree chosen properties to new kconfigfunctions"), but the
devicetree documentation still lists the old names. Update the
documentation with the correct anmes.
Also remove an outdated reference to
DT_SRAM_SIZE/DT_SRAM_BASE_REFERENCE, and give a complete list of
generated macros.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
We have a collection of python scripts that are part of our build
system. This PR collects docstring comments added to these scripts into
a summary document. Previous references to just the script name in
other documentation are updated to point to this build tool
documentation.
Some of the scripts needed an update to be processed (via include
directives) consistently.
Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
It is actually possible to use several shields in the same project.
Reflect it in the shields documentation.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Before introducing the code for ARM64 (AArch64) we need to relocate the
current ARM code to a new AArch32 sub-directory. For now we can assume
that no code is shared between ARM and ARM64.
There are no functional changes. The code is moved to the new location
and the file paths are fixed to reflect this change.
Signed-off-by: Carlo Caione <ccaione@baylibre.com>
I keep mixing these up, so that's probably a sign that the names are
bad. The root of the problem is that "parent-bus" can be read as both
"this is the parent bus" and as "the parent bus is this".
Use 'bus:' for the bus "provider" and 'on-bus:' for nodes on the bus
instead, which is less confusing.
Support the old keys for backwards compatibility, along with a
deprecation warning.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
Explain a common subtle Kconfig gotcha where it might appear that
symbols with prompts are incorrectly "stuck" to a particular value in
the menuconfig interface. I've seen it come up several times now, e.g.
in the discussion that lead to
https://github.com/zephyrproject-rtos/zephyr/pull/20702. I also suspect
it's what's causing
https://github.com/zephyrproject-rtos/zephyr/issues/20673.
Also give suggestions for how to make things behave as intended.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
Document how to configure out-of-tree tests/samples and boards in the
module.yml file to be used by sanitycheck.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Commit 27e5dd13 fixed a bunch of uses of "device tree" in the
documentation, but accidentally hit the part of the documentation
that stated that "devicetree" should be preferred over "device tree".
Signed-off-by: Josh Gao <josh@jmgao.dev>
Remove leading/trailing blank lines in .c, .h, .py, .rst, .yml, and
.yaml files.
Will avoid failures with the new CI test in
https://github.com/zephyrproject-rtos/ci-tools/pull/112, though it only
checks changed files.
Move the 'target-notes' target in boards/xtensa/odroid_go/doc/index.rst
to get rid of the trailing blank line there. It was probably misplaced.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
This option, if set, will add arguments to CMake whenever a new build
system is being generated.
It doesn't affect other invocations of CMake, such as when cmake(1) is
run in build tool mode to actually compile the application.
See the documentation changes for details.
Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
Put a short Kconfig overview on the index page that links to the other
Kconfig documentation.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
Add a new 'Setting Kconfig configuration values' page in the new Kconfig
section in 'User and Developer Guides'. Move all the information on
setting Kconfig symbols from 'Application Development' and the board
porting guide into it. The same page now covers both configuration files
and Kconfig.defconfig files.
Add links to the new page in various places to make it easy to find.
Also add some more references to the top-level Kconfig page and other
Kconfig pages.
A lot of stuff was rewritten while moving it over (the CONF_FILE
documentation has been cleaned up in particular). Some new information
has been added as well, like a tip re. minimal configurations being
helpful when making Kconfig settings permanent, and a warning re.
dependencies being ORed rather than ANDed when defining a symbol in
multiple locations.
Fixes: #20915
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
Move the documentation for the menuconfig and guiconfig interfaces from
Application Development to a new Interactive Kconfig Interfaces page in
User and Developer Guides.
Also tweak Application Development to mention the configuration
interfaces earlier. It's good to encourage people to try things out in
menuconfig, because dependencies often get lost when people seldom run
it and just hand-edit files.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
The Kconfiglib Kconfig extensions are documented in the porting guide,
which is a pretty weird place to document them. Document them under a
new page in the Kconfig section of User and Developer Guides instead.
Also remove the section about the old Zephyr Kconfig behavior for
defaults (tried last-to-first instead of first-to-last). The behavior
was changed 16 months ago (and was undocumented before that), so it
might not be that useful to mention anymore.
Piggyback misc. small language cleanups and organization nits.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
Touch up the Kconfig preprocessor function documentation a bit and add
some more details to the example. Use the Kconfig preprocessor call
syntax instead of Python syntax in the function synopses.
Also move the preprocessor docs to a separate page, and add a top-level
Kconfig section to User and Developer Guides that links to the Kconfig
tips page and the preprocessor page.
Trying to avoid the Kconfig tips page becoming a dumping ground for
random Kconfig documentation.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
Fix misspellings in docs (and Kconfig and headers processed into docs)
missed during regular reviews.
Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
Additions:
- Provide clear description of a typical board port on zephyr
- Add a clear statement that peripherals should be disabled by
default (unless clearly specified)
- Add clear mentions on peripheral that should actually be enabled
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
We've added some new capabilities for documentation writers such as the
tabbed interface and numbered instruction steps, as used in the updated
Getting Started Guide.
Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
The discard report is now generated for every run as
sanity-out/sanitycheck_discard.csv, the option --discard-report was
dropped.
Fixes#20804
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
A detailed overview of Zephyr's build system. This is a
thorough view of the low level build process starting from CMake and
using Make as the build system tool. Things missing here that will be
further documented:
- west
- external modules/libraries
Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
As presented to the TSC, Zephyr's out-of-box experience for new
developers is, well, complicated. A number of suggestions were
presented including simplifying the getting started material to present
a straight-forward path through the setup and installation steps through
to getting a sample application built, flashed, and running.
This PR is a work-in-progress towards addressing this OOB experience
with a minimal-distractions version of the GSG. Alternatives, warnings,
and material that could lead the developer astray were moved to
alternative/advanced instruction documents (based on the previous
separate Linux/macOS/Windows setup guides) and a new "Beyond the GSG"
document.
We do take advantage of a sphinx-tabs extension for synchronized tabs to
present OS-specific instructions: clicking on one tab will display all
same-named tabs throughout the doc.
We hope (and will continue evaluating) that this new GSG gets developers
set up quickly and then we can send them along to other documents to
continue learning about Zephyr and trying other sample apps.
Thanks for all your previous feedback that I've worked
into this new version.
Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
Promote the private z_arch_* namespace, which specifies
the interface between the core kernel and the
architecture code, to a new top-level namespace named
arch_*.
This allows our documentation generation to create
online documentation for this set of interfaces,
and this set of interfaces is worth treating in a
more formal way anyway.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
Add a cleaned-up version of a script I used to find a bunch of unused
symbols and some other Kconfig issues. It's set up to be run directly,
with few environment dependencies.
West is required, because the checks need to see Kconfig files and
source code from all modules.
Checks so far:
- Symbols that can never be anything but n/empty
- Symbols that look unused
- menuconfig symbols with empty menus
- Symbols only defined in Kconfig.defconfig files
See the help strings for the command-line flags for more information.
Some of these checks could probably be checked in CI later, though the
always-n and unused-symbol checks are a bit heuristic and might need a
lot of whitelisting.
Another reason I want to get this in is to have a clean standalone
reference for how to set up the environment for parsing the Kconfig
files. It's gotten trickier over time.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
Add function that will return 'y' or 'n' if a node pointed to by a
chosen property exists and is enabled.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
There are two set of code supporting x86_64: x86_64 using x32 ABI,
and x86 long mode, and this consolidates both into one x86_64
architecture and SoC supporting truly 64-bit mode.
() Removes the x86_64:x32 architecture and SoC, and replaces
them with the existing x86 long mode arch and SoC.
() Replace qemu_x86_64 with qemu_x86_long as qemu_x86_64.
() Updates samples and tests to remove reference to
qemu_x86_long.
() Renames CONFIG_X86_LONGMODE to CONFIG_X86_64.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
Replace:
dt_chosen_reg_addr
dt_chosen_reg_size
dt_node_reg_addr
dt_node_reg_size
with:
dt_chosen_reg_addr_int
dt_chosen_reg_size_int
dt_chosen_reg_addr_hex
dt_chosen_reg_size_hex
dt_node_reg_addr_int
dt_node_reg_size_int
dt_node_reg_addr_hex
dt_node_reg_size_hex
So that we get the proper formatted string for the type of symbol.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Some of this information is stale and needs to be fixed.
Try to make a few other things clearer while we're here.
Signed-off-by: Marti Bolivar <marti.bolivar@nordicsemi.no>
Document why and how we use the devicetree nexus map properties to
preserve devicetree flag specifications.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
