Not all DTS changes are board specific and we should support overlays
that can be used with multiple boards. For example with a sensor, for
example:
Use this overlay for a sensor:
&arduino_i2c {
bme280@76 {
compatible = "bosch,bme280";
reg = <0x76>;
label = "BME280";
};
};
This will work with any board that has &arduino_i2c defined, but should
also work if you specify the instance directly (&i2c0 or &i2c1).
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
cmake has a number of issues dealing with symbolic links:
https://gitlab.kitware.com/cmake/cmake/issues/16228
One of them can cause cmake to rewrite the -S input from the user and
CMAKE_SOURCE_DIR to unexpectedly include symbolic links:
https://cmake.org/pipermail/cmake/2019-May/thread.html#69496
Catch this corner case and warn about subtle issues like breaking
-fmacro-prefix-map=${ZEPHYR_BASE}=
Sample warning message:
CMake Warning at ../../CMakeLists.txt:30 (message):
ZEPHYR_BASE doesn't match CMAKE_CURRENT_SOURCE_DIR
ZEPHYR_BASE = ~/zephyrproject/zephyr
PWD = ~/westsymlink/zephyr/samples/hello_world
CMAKE_CURRENT_SOURCE_DIR = ~/westsymlink/zephyr
You may be using a mix of symbolic links and real paths which causes
subtle and hard to debug CMake issues.
Signed-off-by: Marc Herbert <marc.herbert@intel.com>
With the addition of a local CMake variable ZEPHYR_BASE that mirrors the
value of the environment variable the documentation build broke on
Windows. This is because CMake was incorrectly interpreting backslashes
present in the Windows path as escaping characters. In order to avoid
this, use CMake's built-in file(TO_CMAKE_PATH) functionality, which
converts the path to a canonical version using forward slashes only.
At the same time rework boilerplate.cmake to use the same mechanism
instead of manually replacing backslashes and removing trailing ones.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
Shields can often be very complex to setup in a generic way for several
boards to support. Let's allow shields to have their own .conf files
as well as specialized overlays per board (when needed).
Signed-off-by: Michael Scott <mike@foundries.io>
Allows snippets to be placed in different locations:
- The noinit, rwdata and rodata output sections
- Two different locations for placing custom output sections,
one location for RAM and another for all other sections.
Signed-off-by: Øyvind Rønningstad <oyvind.ronningstad@nordicsemi.no>
In windows an additional / is added when using zephyr-env.cmd
this causes a build error in some scenarios. It also creates
ugly file paths.
Signed-off-by: Sigvart Hovland <sigvart.hovland@nordicsemi.no>
After the rework in #12403, specifying a shield which has overlay
out of the tree causes unnecessary inclusions of overlays.
For every board root, overlays that have same index as
expected overlay are being included.
Fix this by removing already included overlays from SHIELD list.
Signed-off-by: Marcin Szymczyk <Marcin.Szymczyk@nordicsemi.no>
Update the files which contain no license information with the
'Apache-2.0' SPDX license identifier. Many source files in the tree are
missing licensing information, which makes it harder for compliance
tools to determine the correct license.
By default all files without license information are under the default
license of Zephyr, which is Apache version 2.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
In-tree, all usage of 'set_conf_file' is implementing the same
pattern (with some inconsequential differences).
To reduce copy-paste and get closer to dropping support for
'set_conf_file', we include this pattern into the built-in set of
patterns.
'set_conf_file' is causing issues for future extensions,
e.g. multi-image support, and is also the source of a lot of
duplicated code.
Note support for 'set_conf_file' is not dropped, it is only marked as
deprecated.
Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
Drop these CMake comments. It is redundant with a below comment to
describe 'app', and it is incorrect to state that omitting
boilerplate.cmake is permitted/supported.
Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
We had an if-statement around policy 79 because we used to need to
support CMake versions before 3.13.0. But now 3.13.1 is the minimum
required version so the if statement always evaluates to true and can
be omitted.
Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
This commit allows for Zephyr modules to be natively integrated into
the build system with CMakeLists.txt and Kconfig files.
The sourcing of module files are done in following order:
- If <module>/zephyr/module.yml exists, use cmake and kconfig settings
for sourcing of additional file
- Else if <module>/zephyr/CMakeLists.txt exists, source this file into
CMake build tree and add <module>/zephyr/Kconfig as osource
If none of the above files are present, the project is considered to
not be a Zephyr module
Signed-off-by: Torsten Rasmussen <torsten.rasmussen@nordicsemi.no>
Introduces the ARCH_ROOT argument, similar to BOARD_ROOT and SOC_ROOT.
This enables support for out-of-tree architectures.
The ARCH_ROOT out-of-tree layout is expected to be the following:
* ${ARCH_ROOT}/arch/${ARCH}/
* ${ARCH_ROOT}/include/arch/${ARCH}/ (Optional)
Signed-off-by: Klaus Petersen <kape@oticon.com>
Based on work from Sebastian Bøe and updated to current tree.
Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Rather than specifying SHIELD via Kconfig, we move it to being
specified via the command line, similar to board.
So we can do:
-DSHIELD=x_nucleo_iks01a1
or, for multiple shields:
-DSHIELD="x_nucleo_iks01a1 frdm_kw41z"
Following cmake change, update x_nucleo_iks01a1 sample in order
not to enable CONFIG option anymore but set SHIELD cmake option.
Last, update documentation to reflect this change.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Move to latest cmake version with many bug fixes and enhancements.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
Follow the same convention as that of ccache.
Improve readability of boilerplate.cmake file.
Move inclusion of version.cmake up to satisfy git.cmake dependency.
Signed-off-by: Mark Ruvald Pedersen <mped@oticon.com>
Cosmetics, no functional change expected.
Fixed leading space alignment.
Replaced tabs with spaces.
Emulation error message output is now aligned.
To locate tabs in cmake, the following bash is useful:
grep -PRil "\t" * | grep -i cmake | grep -v ^sanity
Signed-off-by: Mark Ruvald Pedersen <mped@oticon.com>
Aid user in understanding what CMake expects of:
* Document and add CMAKE_SYSTEM_VERSION
* Document CMAKE_SYSTEM_NAME
* Document CMAKE_SYSTEM_PROCESSOR
* Document BUILD_SHARED_LIBS
* Document Policies CMP0002, CMP0079
CMAKE_SYSTEM_VERSION is required officially by CMake, but appears
unused -- at least now we are compliant.
Signed-off-by: Mark Ruvald Pedersen <mped@oticon.com>
CheckCCompilerFlag and CheckCXXCompilerFlag does not belong to
extensions.cmake since they are standard CMake files. Boilerplate
seems more appropriate.
Signed-off-by: Mark Ruvald Pedersen <mped@oticon.com>
Split up the toolchain configuration into two phases, generic and
target. The 'generic' phase configures the toolchain just enough to be
able to preprocess DT files. The 'target' phase completes the
configuration with target-specific configuration.
Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
In CMake 3.13 a warning is produced if one does not explicitly state
what the policy for CMP0079 should be. To resolve this warning we set
policy CMP0079 to OLD.
This is expected to have no semantical change. When we want a
semantical change we can flip the policy and port the build scripts to
the new behaviour.
This fixes#11794
Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
This patch creates a rule in the cmake to trigger the generation
of linker_relocate.ld and code_relocation.c files.
The linker_relocate.ld will create appropriate sections and will
link the required functions or variables from all the selected
files.
The code_relocation.c will have code that is needed for
initializing data sections and copy of text sections(if XIP).
Also this will contain code that is needed for zeroing of bss.
The procedure to invoke this feature is:
1. Enable CONFIG_CODE_RELOCATION in the prj.conf
2. Inside CMakeList.txt in the project we need to mention
all the files that needs to get relocated.
zephyr_kernel_code_relocate(src/*.c SRAM2)
Where the first argument is the file/files and the second
argument is the memory where it has be placed.
NOTE: The file argument supports glob expressions.
NOTE: Step 2 can be done as many times as required. And relative
paths can be given here.
Signed-off-by: Adithya Baglody <adithya.nagaraj.baglody@intel.com>
Move libapp.a into it's own directory. This would make it's placement
consistent with how zephyr.elf is placed.
E.g. it might now look like:
ls b/*
b/build.ninja b/CMakeCache.txt b/cmake_install.cmake b/rules.ninja
b/app:
libapp.a
b/CMakeFiles:
3.12.0 cmake.check_cache CMakeOutput.log TargetDirectories.txt
app.dir CMakeError.log CMakeTmp
b/zephyr:
arch kernel subsys
boards lib tests
cmake liboffsets.a zephyr.bin
CMakeFiles libzephyr.a zephyr.elf
cmake_install.cmake linker.cmd zephyr.hex
ext linker_pass_final.cmd zephyr.map
include linker_pass_final.cmd.dep zephyr_prebuilt.elf
isrList.bin misc zephyr.stat
Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
The 'FindPythonInterp' that is distributed with CMake 3.8 is affected
by bug: https://github.com/zephyrproject-rtos/zephyr/issues/11103
To work around this, until we upgrade to 3.13, we copy and patch the
3.8 version of 'FindPythonInterp' into the Zephyr repository.
Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
CMake prints a helpful error message with all the boards supported
when a board name has been misspelled. But CMake also
remembers (caches) the corrupted board name and refuses to change it
until the board directory has been cleared.
CMake is rightly hesitant to change the board, as other cached
variables depend on what the board is. But it is safe to change the
board just after it has been selected, because we verify it's
correctness before using it to calculate other variables.
So to support the use-case of changing a misspelled board
name (without clearing the build directory) we unset the cached board
when it is invalid.
Also; change the now unused (in-tree) macro 'assert_with_usage' to
'print_usage'.
Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
MSYS support was added as a stop-gap while native windows support was
unsupported. Now that Native windows support is stable we can drop
support for MSYS.
Dropping support for MSYS fixes#11260 and allows us to spend more
resources on native windows support.
Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
Introduce new Kconfig option for selecting either slip or ethernet
connectivity to host.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
When Python3 is not found the build system will warn the user and then
continue. Python3 is required and continuing can only confuse the user
with new off-topic error messages.
This patch denotes Python3 as required to resolve this.
Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
1. The generator handles just the COMPILE_DEFINITIONS.
(See: __ZEPHYR_SUPERVISOR__)
For the defines in INTERFACE_COMPILE_DEFINITIONS
a special handling is necessary.
Solution:
The amendment function generates a macro header file
${CMAKE_BINARY_DIR}/zephyr/include/generated/cmake_intdef.h
based on INTERFACE_COMPILE_DEFINITIONS and appends the
defines from the file to
CMAKE_EXTRA_GENERATOR_C_SYSTEM_DEFINED_MACROS.
2. Eclipse CDT4 indexer has problems with CMake 'Eclipse CDT4 - x'
generator projects that use mixed C/C++.
The Eclipse CDT4 indexer is showing a lot of unresolved symbol
errors, when the project was created with CMake generator and
the code is a mix of C and C++.
The root cause of the problem is the g++ built-in __cplusplus macro,
that is passed by CMake generator in the '.cproject' file.
The defines in '.cproject' are always the same for C and C++.
In mixed C/C++ projects, the header files often contain the following
lines to let C++ code call the C functions:
#ifdef __cplusplus
extern "C" {
#endif
< header content >
#ifdef __cplusplus
}
#endif
Whenever the Eclipse CDT4 indexer compiles the code for
code analysis, it has the macro __cplusplus set,
independent of whether standard C or C++ source files are compiled.
The 'extern "C"' confuses the standard C compilation and the indexer
is messed up.
Solution:
The amendment function deletes the __cplusplus entry from
CMAKE_EXTRA_GENERATOR_CXX_SYSTEM_DEFINED_MACROS.
3. The amendment function appends the defines from
${CMAKE_BINARY_DIR}/zephyr/include/generated/autoconf.h to
CMAKE_EXTRA_GENERATOR_C_SYSTEM_DEFINED_MACROS.
Signed-off-by: Istvan Bisz <istvan.bisz@t-online.hu>
The deprecation warning has existed for 1 release and 3 months, giving
users plenty of time to be warned.
This reverts commit 9c93e8e87b.
Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
It is very inconvenient to maintain an application that both runs on a
Zephyr board and an out-of-tree board.
It forces one to write build scripts like this in the app:
if(BOARD STREQUAL my_out_of_tree_board)
set(BOARD_ROOT some/out/of/tree/board/path)
endif()
To avoid this we change the semantics of BOARD_ROOT. Instead of it
being a path to the board root it is now a prioritized list of board
root directories. Zephyr will append ZEPHYR_BASE to BOARD_ROOT.
This ensures that Zephyr boards can be used when the out-of-tree board
directory can not supply the requested board.
Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
The commit 1b80f00f56 made git describe
failure as fatal. But a failure can happens when no tag is in a
repository. And such a repository might exist for a internal build
system or some test environments.
Zephyr's build system is capable building without a commit hash.
This commit makes it non-fatal again and inform users that the build
system is failed to execute "git describe" but continues building with
KERNEL_VERSION_STRING.
Signed-off-by: Yasushi SHOJI <y-shoji@ispace-inc.com>
A confusing warning has popped up since 3.13. It can be observed as
so:
Zephyr version: 1.13.99
Parsing Kconfig tree in /home/sebo/zephyr/Kconfig
Merging /home/sebo/zephyr/samples/hello_world/prj.conf
warning: tag 'zephyr-v1.13.0' is really 'v1.13.0' here
-- Generating zephyr/include/generated/generated_dts_board.h
This warning is more confusing than useful so we suppress stderr from
'git describe' when the command runs successfully.
Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
Always print the note to make sure it isn't missed, but make it easy to
disable (by creating an empty file).
The note will be removed later.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
CMake has several prototypes/signatures for the function
'target_link_libraries'. This commit migrates the usage of
'target_link_libraries' on Zephyr CMake libraries from the old 'plain'
signature to the new '<PRIVATE|PUBLIC|INTERFACE>' signature.
For technical reasons the two signatures can not be mixed. Each
library must exclusively use either the old or new signature.
The 'old' plain signature is equivalent to using the PUBLIC
signature. Migrating to use 'PUBLIC' is therefore expected to be a
safe change.
After the migration it will be possible to use the PRIVATE and
INTERFACE signatures on Zephyr CMake libraries. This is useful for
instance to fix issue 8438.
Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
Older Git versions still do not support the -C argument for specifying
the working directory. Switch to using cmake WORKING_DIRECTORY instead.
This fixes#7287 again after commit 5e7e1cb.
Signed-off-by: Henrik Brix Andersen <henrik@brixandersen.dk>
The "git describe" call for setting the boot banner is broken. The
--work-tree option sets the checked out work tree, not the directory
containing .git, which is where git describe needs to look for
information on tags.
Use -C instead so it's as if Git were run from the zephyr base
directory instead.
Signed-off-by: Marti Bolivar <marti@opensourcefoundries.com>
Both variables were used (with the same value) interchangeably
throughout CMake files and per the discussion in GH issue,
ZEPHYR_BASE is preferred.
Also add a comment with explanation of one vs. the other.
Tested by building hello_world for several boards ensuring no errors.
Fixes#7173.
Signed-off-by: Alex Tereschenko <alext.mkrs@gmail.com>
Older Git versions do not support the -C argument for specifying the
working directory. Switch to using --work-tree instead.
This fixes#7287.
Signed-off-by: Henrik Brix Andersen <henrik@brixandersen.dk>
Instead of using a module that tries to do too many things that break
in different places, keep it simple and just call git describe.
This fixes#7044 and fixes#7207.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
To improve the build system's "clean build" runtime we need to cache
files in a directory outside of the build directory.
Caching files outside of the build directory is is already being done
to a certain degree today. For instance, if a user has installed
ccache it will cache files in $HOME/.ccache/.
This commit locates a directory that is suitable for caching files in
a cross-platform way. For instance on Linux this is believed to be
$HOME, on Windows this is believed to be %LOCALAPPDATA%.
If for whatever reason no environment variables are are found to be
suitable we fall back to using $ZEPHYR_BASE/.cache/. For users that
often use 'git -clean' the caching mechanism will not work as well,
but it will at least be better than no caching at all.
Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
This uses the version and hash (git describe) and replaces the timestamp
currently used in the boot banner. This works much better than using
timestamps. It lets us point to the exact commit being used to run a
certain application or test.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
