fix(hal/include): fix header violations in hal component
fix(hal/include): Move type definitions from `xx_hal.h` to `xx_types.h`
fix(hal/include): Move type definitions from `xx_hal.h` to `xx_types.h`
fix(hal/include): Add comment for a far away `#endif`
fix(hal/include): change scope for cpp guard
ci: Remove components/hal/ comment from public headers check exceptions
Add missing include macro sdkconfig.h for header files
Add missing include macro stdbool.h for header files
Add missing include macro stdint.h for header files
Add missing capability guard macro for header files
Add missing cpp guard macro for header files
Remove some useless include macros
Add some missing `inline` attribute for functions defined in header files
Remove components/hal/ from public headers check exceptions
fix(hal/include): fix invalid licenses
fix(hal/include): fix invalid licenses
fix(hal/include): add missing soc_caps.h
fix(hal): include soc_caps.h before cap macro is used
fix(hal): Remove unnecessary target check
fix(hal): fix header and macro problems
Add missing include macro
Remove loop dependency in hal
Add comment for far-away endif
fix(hal): Add missing soc_caps.h
ci: update check_copyright_ignore.txt
Change the sequence of `#include` macro, cpp guard macro
Change the wrap scope of capacity macro
fix(hal): Change position of C++ guard to pass test
- add hardware stack guard based on assist-debug module
- enable hardware stack guard by default
- disable hardware stack guard for freertos ci.release test
- refactor rtos_int_enter/rtos_int_exit to change SP register inside them
- fix panic_reason.h header for RISC-V
- update docs to include information about the new feature
Current version of the test is using "git-submodule foreach", which
requires submodules to be initialized. Non-initialized submodules are
ignored. Our CI is not performing submodule initialization, but instead
it only downloads the submodule content in tools/ci/ci_fetch_submodule.py
from cache and copies it into the submodule path.
Since we already know the submodule path from .gitconfig, we can use it
as argument to git-ls-tree and avoid calling git-submodule at all. This
allows to perform the test even if the submodules are not initialization
and also it makes the code simpler.
Signed-off-by: Frantisek Hrbata <frantisek.hrbata@espressif.com>
This uses the test from CI introduced in MR !23989. Even though the
original CI test is run with pytest, it doesn't use any pytest specific
code/features and it should never need them. So it make sense just to
re-use the code.
Signed-off-by: Frantisek Hrbata <frantisek.hrbata@espressif.com>
The script works the same way with httpd and softap mode, but it's a bit
confusing to provision the device over Ethernet or USB and call the
transport "softap". That's why we introduce an alias called httpd which
uses the same idea (http server with service name), but that service
runs on any interface (where the specified service is available)
As pointed out by Fu Hanxi, the pytest_build_system job is currently
using --parallel-index and --parallel-count, which are provided by
pytest-embedded, so we should not disable it. Moreover to properly
disable pytest-embedded we should use "no:pytest_embedded". Meaning
this probably was not working as indented anyway.
Signed-off-by: Frantisek Hrbata <frantisek.hrbata@espressif.com>
This adds SBOM information for submodules, which are not managed
by Espressif. Meaning there is no fork for them in the espressif
namespace. Other submodules should add sbom.yml manifest file to
the root of their git repository.
The SBOM information for submodules is stored in the .gitmodules file.
Each SBOM related variable has the "sbom-" prefix and the following
variables may be used:
sbom-version:
submodule version
sbom-cpe:
CPE record if available in NVD. This will be used by the SBOM
tool to check for possible submodule vulnerabilities. The
version in the CPE can be replaced with the "{}" placeholder,
which will be replaced by the "sbom-version" value from above.
sbom-supplier:
Person or organization who is providing the submodule.
It has to start with "Person:" or "Organization:" prefix
as required by the SPDX-2.2 standard.
sbom-url:
URL to the project if exists, e.g. github.
sbom-description:
Project description.
sbom-hash:
Submodule SHA as recorded in the git-tree. This field is used by
CI to check that the submodule checkout hash and info in .gitmodules
are in sync. IOW if submodule is updated and it has SBOM info in
.gitmodules, the .gitmodules has to be updated too. The test is
part of this commit. The checkout has of the submodule can be found
by using "git submodule status".
Example for micro-ecc submodule
---8<---
[submodule "components/bootloader/subproject/components/micro-ecc/micro-ecc"]
path = components/bootloader/subproject/components/micro-ecc/micro-ecc
url = ../../kmackay/micro-ecc.git
sbom-version = 1.0
sbom-cpe = cpe:2.3🅰️micro-ecc_project:micro-ecc:{}:*:*:*:*:*:*:*
sbom-supplier = Person: Ken MacKay
sbom-url = https://github.com/kmackay/micro-ecc
sbom-description = A small and fast ECDH and ECDSA implementation for 8-bit, 32-bit, and 64-bit processors
sbom-hash = d037ec89546fad14b5c4d5456c2e23a71e554966
---8<---
Signed-off-by: Frantisek Hrbata <frantisek.hrbata@espressif.com>
This extends information provided in the project_description.json file.
Newly added information can be used in the SBOM generating tool and
also to improve hints regarding the the component dependency issues.
Added fields
version:
This adds versioning to the project_description.json file,
so it's easy to identify if it contains the required information.
project_version:
Can be used as a version for the resulting binary e.g. `hello_world.bin`.
idf_path:
This one is probably not necessary, but it allows tools to run even without
esp-idf environment exported(e.g. export.sh).
c_compiler:
The `CMAKE_C_COMPILER` value with full path to the compiler binary. This can
be used to get information about toolchain, which was used to build the project.
common_component_reqs:
List of common components as presented in cmake's __COMPONENT_REQUIRES_COMMON
and set in tools/cmake/build.cmake:__build_init().
build_component_info:
Detailed information about components used during build. It's a
dictionary with the component name as a key and each component has
a dictionary with detailed information. Following is an example for
the efuse component.
"efuse": {
"alias": "idf::efuse",
"target": "___idf_efuse",
"prefix": "idf",
"dir": "/home/fhrbata/work/esp-idf/components/efuse",
"type": "LIBRARY",
"lib": "__idf_efuse",
"reqs": [],
"priv_reqs": [ "bootloader_support", "soc", "spi_flash" ],
"managed_reqs": [],
"managed_priv_reqs": [],
"file": "/home/fhrbata/work/blink/build/esp-idf/efuse/libefuse.a",
"sources": [ "/home/fhrbata/work/esp-idf/components/efuse/esp32s3/esp_efuse_table.c", ... ],
"include_dirs": [ "include", "esp32s3/include" ]
}
Signed-off-by: Frantisek Hrbata <frantisek.hrbata@espressif.com>
Currently make_json_list() returns '[ "" ]' for empty cmake list. Fix this
so empty json list is returned instead.
Signed-off-by: Frantisek Hrbata <frantisek.hrbata@espressif.com>
- This features allows the NVS encryption keys to be derived and protected using
the HMAC peripheral. Since the encryption keys are derived at runtime, they
are not stored anywhere in the flash and hence this feature does not require
a separate `nvs_keys` partition.
This commit adds support for handling multiple requests simultaneously by introducing two new functions: `httpd_req_async_handler_begin()` and `httpd_req_async_handler_complete()`. These functions allow creating an asynchronous copy of a request that can be used on a separate thread and marking the asynchronous request as completed, respectively.
Additionally, a new flag `for_async_req` has been added to the `httpd_sess_t` struct to indicate if a socket is being used for an asynchronous request and should not be purged from the LRU cache.
An example have been added to demonstrate the usage of these new functions.
Closes https://github.com/espressif/esp-idf/issues/10594
Signed-off-by: Harshit Malpani <harshit.malpani@espressif.com>
esp_bootloader_format: Adds bootloader description structure to read bootloader version from app
Closes IDFGH-7206 and IDFGH-7573
See merge request espressif/esp-idf!21592
spi_flash: One more step for supporting flash suspend. 1. Support more esp chips 2. Improve real-time performance 3. Make timing more stable
See merge request espressif/esp-idf!22755
Currently hints are processed only once the process is finished and
exits with non-error exit code. In interactive mode, e.g. for monitor,
we want to process ouput lines for hints right away.
This adds a simple buffer, which keeps the last line and once EOL is
reached, it is processed for hints.
Since the original hints processing was file based, a new helper
function was added to allow processing hints in string.
Signed-off-by: Frantisek Hrbata <frantisek.hrbata@espressif.com>
* reverted old faulty mechanism to set different
standard according to the toolchain
* Using -std=gnu++2b now for both gcc and clang
* Added a build test app to check the C++ standard in IDF
* Updated english docs to reflect the change to C++23
This commit refactors the "freertos" component's structure as follows:
- "FreeRTOSConfig.h" related files moved to "./config" directory
- Refactored CMakeLists.txt file in preparation for v10.5.1 upgrade
- Grouped list appends based on component organization
- Removed some unecessarily public "include_dirs"
- Removed FreeRTOS-openocd.c
- uxTopUsedPriority has been added back to tasks.c since v10.4.2
- Thus the workaround in FreeRTOS-openocd.c is no longer needed and can
be removed.
ADDITIONAL_MAKE_CLEAN_FILES is deprecated and only worked with make.
Replaced with the new ADDITIONAL_CLEAN_FILES (CMake 3.15) which also works with ninja.
Changed rv_utils_intr_edge_ack and esp_cpu_intr_edge_ack to
take uint32_t instead of int to avoid build errors.
The test is to test in particular that __builtin_ffsll, used in
xt_utils.h, which is included via esp_cpu.h, compiles fine
in C++20 with -Wsign-conversion enabled.
Closes https://github.com/espressif/esp-idf/pull/10895
* The unit tests are derived from the FreeRTOS test app
in components/freertos/test_apps/freertos. They are
quite incompatible with the main test application, which
is why they have been placed under
tools/test_apps/linux_compatible/linux_freertos for now.
This feature allows calling fsync even if the vfs component is not
used.
The second part of the commit adds an fsync call in the panic test app
enabling it to be used over usb-serial-jtag.
system: support USB_OTG CDC console on ESP32-S3
Closes IDF-2048, IDF-2987, IDFGH-7134, IDFGH-7291, and IDFGH-7835
See merge request espressif/esp-idf!19312
Used esp-rom tag esp32s3-20210327 and did manual cleanup.
Rename s_usb_osglue to rom_usb_osglue like it was done for esp32s2.
Some comments in esp32s2 headers are synced from esp32s3.
On Windows, when path is specified as absolute for cmdl argument, cmake can
interpret parts of the path as invalid escape chars. For example "C:\Users\..."
will result in "Invalid character escape '\U'." Externally specified
paths should be converted into cmake's representation, which uses '/'.
This can be done e.g. by using 'get_filename_component()'. Currently
there doesn't seem to be any problem with this, but let's add a test for
this.
Suggested-by: Ivan Grokhotkov <ivan@espressif.com>
Signed-off-by: Frantisek Hrbata <frantisek.hrbata@espressif.com>
Currently the forced progress in RunTool is trying to fit the output
line into a terminal width, but it doesn't take into an account a
situation when the terminal width is reported as zero. This manifests
when running in docker image with redirected output and can be seen
in the github workflow output for esp-idf-ci-action.
docker run --rm -t my_ubuntu_esp python3 -c 'import os,sys; print(os.get_terminal_size(), sys.stdout.isatty())'
os.terminal_size(columns=238, lines=59) True
vs
docker run --rm -t my_ubuntu_esp python3 -c 'import os,sys; print(os.get_terminal_size(), sys.stdout.isatty())' | tee
os.terminal_size(columns=0, lines=0) True
Since the output is reported as tty and the terminal width as 0, the
fit_text_in_terminal() function returns empty string. I also verified this
by running idf.py build inside a testing docker image.
This fix adjusts the fit_text_in_terminal() function to return original
line if the terminal width is zero.
Also simplify the progress print and use same approach as ninja
https://github.com/ninja-build/ninja/blob/master/src/line_printer.cc#L66
Signed-off-by: Frantisek Hrbata <frantisek.hrbata@espressif.com>
Currently if the IDF_TARGET env is set, and old sdkconfig exists with
different target value in CONFIG_IDF_TARGET, the set-target action fails
complaining about the IDF_TARGET env and value in sdkconfig being different.
We should ignore IDF_TARGET value from sdkconfig, because we are
actually setting new target and the old sdkconfig is renamed in cmake.
This can be easily reproduced with
---8<---
$ IDF_TARGET=esp32 idf.py set-target esp32
$ IDF_TARGET=esp32s3 idf.py set-target esp32s3
Project sdkconfig '/home/fhrbata/work/hello_world/sdkconfig' was generated
for target 'esp32s3', but environment variable IDF_TARGET is set to 'esp32'.
Run 'idf.py set-target esp32' to generate new sdkconfig file for target esp32.
---8<---
This also adds test for this use case to test_non_default_target.py.
Signed-off-by: Frantisek Hrbata <frantisek.hrbata@espressif.com>
This commit removes all idf_size.py files and references to them and adds esp-idf-size as a dependency and adequate wrappers to avoid breaking changes.
Two new tests are added.
1) test_check_python_dependencies
The test prepares artificial constraints file containing packages from
requirements.core.txt, which are also reported in pip-freeze output
for virtual env. The constraints file requires package versions higher
than currently installed in venv, so check_python_dependencies
should fail for all of them.
2) test_check_required_packages_only
Test for espressif/esp-idf/-/merge_requests/17917. After installing
core requirements, install additional foopackage, which is embedded.
Add version requirement for foopackage, which cannot be satisfied,
to constraints file. Since foopackage is not a direct requirement,
check-python-dependencies should not fail.
This also fixes existing TestCustomPythonPathInstall test, which sets
IDF_PYTHON_ENV_PATH, but does not restore it. Unittest seems to be
running tests in order based on class/test name. Meaning this test runs
before TestPythonInstall and all tests in TestPythonInstall are using
the latest tmpdir from TestCustomPythonPathInstall as IDF_PYTHON_ENV_PATH.
IOW TestPythonInstall is actually testing custom python env path, same as
TestCustomPythonPathInstall. This fixes it by restoring the
IDF_PYTHON_ENV_PATH. Note that since the actual IDF_PYTHON_ENV_PATH
was different(tmpdir) from PYTHON_DIR, the default PYTHON_DIR was never used,
so the tests were running with old python env(no
shutil.rmtree(PYTHON_DIR).
Since TestCustomPythonPathInstall is inheriting from TestPythonInstall
it also runs test_opt_argument and test_no_constraints for the second
time. This seems unnecessary, so this patch also skips these two tests
in TestCustomPythonPathInstall.
Signed-off-by: Frantisek Hrbata <frantisek.hrbata@espressif.com>
esp_execute_shared_stack_function always restored the stack watchpoint
regardless of CONFIG_FREERTOS_WATCHPOINT_END_OF_STACK. This would lead
to an abondoned but active watchpoint on a former stack once the task
calling esp_execute_shared_stack_function is deleted, if
CONFIG_FREERTOS_WATCHPOINT_END_OF_STACK is inactive.
This has been fixed now.
Closes https://github.com/espressif/esp-idf/issues/10414
Update wifi lib with below -
1. Create NAN Discovery SM for beaconing & cluster formation
2. Create NAN interface for Tx/Rx of beacons & action frames
3. Add commands & events for NAN Services Publish/Subscribe/Followup
4. Add NAN Datapath definitions, Events, Peer structures
5. Support for forming and parsing of Datapath related attributes
6. Modules for NDP Req, Resp, Confirm, Term, Peer management
7. NAN Interface related additions in Datapath, Data Tx Q's
In addition include below changes -
1. Add netif and driver support for NAN Interface
2. Add simple examples for Publisher-Subscriber usecases
3. Add an advanced console example that supports commands
for NAN Discovery, Services & Datapath
4. Add wifi_apps for providing better NAN API's and Peer management
Co-authored-by: Shyamal Khachane <shyamal.khachane@espressif.com>
Currently the set-target has sdkconfig file name hardcoded to the
default one and doesn't honor custom config paths or names.
IMHO the only place where we can really now the config file name
is in cmake. But also the config should be really renamed only if
the set-target action is running.
This moves the config file renaming into cmake and it's performed only
when _IDF_PY_SET_TARGET_ACTION env. var. is set to 'ON'. This should
hopefully guarantee that it's really renamed only while set-target is
running.
Signed-off-by: Frantisek Hrbata <frantisek.hrbata@espressif.com>
Extend target checks in cmake, in case it's run directly and not via
idf.py or if idf.py misses something. This may happen
for example if cmake variables are set in project's CMakeLists.txt.
Some clean-ups are included along with the new checks and tests.
1. __target_check() function is removed. IIUC it should never fail,
because the selected target is explicitly passed as environmental
variable to kconfgen. Meaning the IDF_TARGET from environment variable may
not be actually used in kconfgen if IDF_TARGET is already set it cmake cache.
Note that the IDF_TARGET environment variable used for kconfgen is not
based on the actual IDF_TARGET environment variable set for idf.py, but
rather on the value set in __target_init() with
set(IDF_TARGET ${env_idf_target} CACHE STRING "IDF Build Target")
My understanding is that the original check was introduced to handle
situation, where IDF_TARGET was already set in cmake's cache and
the IDF_TARGET from environment variable was different. Since
the kconfgen would use the original environment variable(not
explicitly passed as it is now) the IDF_TARGET in cmake and in
sdkconfig could differ. IOW I think the original check was introduced
to cope with the following cmake behaviour
set(VARIABLE "value1" CACHE STRING "test variable")
set(VARIABLE "value2" CACHE STRING "test variable")
message("Variable value: ${VARIABLE}")
output: Variable value: value1
2. I scratched by head how it is possible that the following code
in __target_check()
if(NOT ${IDF_TARGET} STREQUAL ${env_idf_target})
could fail if IDF_TARGET is not set. For example in clean project
IDF_TARGET=esp32 idf.py reconfigure
Here env_idf_target==esp32 and IDF_TARGET is not set, so I would
expect that cmake will fail with error message that the cache
and env target do not match. The thing is that the variable
evaluation is done before the if command, so it actually
sees this
if(NOT STREQUAL esp32)
which is false and the error is not printed. It can be seen
with 'cmake --trace-expand' command. I don't know if this
was used on purpose or it worked just as a coincidence, but
I find it very confusing, so I added explicit check if the
IDF_TARGET is defined before the actual check. Same for
CMAKE_TOOLCHAIN_FILE.
3. Error messages are not formated(line-wrapped) by cmake's markup
so it's easier to check the output in tests.
Signed-off-by: Frantisek Hrbata <frantisek.hrbata@espressif.com>
Extend existing target consistency checks for the two following cases.
1. Target does not match currently used toolchain
$ IDF_TARGET=esp32s2 idf.py reconfigure
$ idf.py -DIDF_TARGET=esp32c3 build
2. Target is ambiguous, because it's specified also as env. var.
IDF_TARGET=esp32s3 idf.py set-target esp32c2
Signed-off-by: Frantisek Hrbata <frantisek.hrbata@espressif.com>
The _guess_or_check_idf_target() function has sdkconfig and sdkconfig.defaults
file names hardcoded. Since config file names may be specified with SDKCONFIG
or SDKCONFIG_DEFAULTS cmake vars, directly in CMakeLists.txt or passed in with
the -D cmake option, they are not respected.
Problem is when SDKCONFIG or SDKCONFIG_DEFAULTS is set in
CMakeLists.txt. While idf can detect cmake vars passed through it
to cmake via the -D option, detecting SDKCONFIG and SDKCONFIG_DEFAULTS
vars settings in CMakeLists.txt would require to parse it. This seems
like error prone approach. Also if the vars defined by the -D option
are passed directly to cmake, not via idf, they will not be visible to idf.
It seems reasonable to move the logic into cmake, where we know the correct
SDKCONFIG and SDKCONFIG_DEFAULTS values. So the IDF_TARGET detection/guessing
is moved into targets.cmake, where the IDF_TARGET is actually set. The target
is guessed based on the following precendence.
1) $ENV{IDF_TARGET}
2) IDF_TARGET
3) SDKCONFIG
4) sdkconfig
5) SDKCONFIG_DEFAULTS if non-empty or
$ENV{SDKCONFIG_DEFAULTS} if non-empty or
sdkconfig.defaults
6) esp32
All config files referred in $ENV{SDKCONFIG_DEFAULTS} and SDKCONFIG_DEFAULTS
are searched, compared to the current behaviour. First target found in the
above chain is used.
The original _guess_or_check_idf_target() is renamed to _check_idf_target() and
used for the target consistency checks only.
The get_sdkconfig_filename() helper is now used to get the sdkconfig file
for consistency checks. It looks in SDKCONFIG specified with the -D
option and project_description.json.
With this change config full paths are reported in messages, so it's clear
e.g. from which config the target was guessed from or which config has
consistency problem. test_non_default_target.py was adjusted to this
change and also new test for testing the IDF_TARGET guessing was added.
Signed-off-by: Frantisek Hrbata <frantisek.hrbata@espressif.com>
Get project's current sdkconfig file name. It looks in SDKCONFIG cmake var
defined by the -D option and project_description.json. If not found return
default sdkconfig.
Signed-off-by: Frantisek Hrbata <frantisek.hrbata@espressif.com>
This parses cmakes cache vars defined on command line with -D options
into dictionary. It allows to simplify the check for new cache entries
and also can be re-used for other checks.
Signed-off-by: Frantisek Hrbata <frantisek.hrbata@espressif.com>
1. Remove RTC_CLOCK_BBPLL_POWER_ON_WITH_USB Kconfig option
During sleep, BBPLL clock always gets disabled
esp_restart does not disable BBPLL clock, so that first stage bootloader log can be printed
2. Add a new Kconfig option PM_NO_AUTO_LS_ON_USJ_CONNECTED
When this option is selected, IDF will constantly monitor USB CDC port connection status.
As long as it gets connected to a HOST, automatic light-sleep will not happen.
Closes https://github.com/espressif/esp-idf/issues/8507
Pros:
- Using thread would face GIL issue and turns out very slow when running
with poor hardware.
Cons:
- Does not support windows anymore. For testing purpose, it's fine.
- Add support for esp32s2, esp32c3 and esp32c2 for the `memprot`-related tests
- Preliminary support for esp32s3 has also been added,
the test app will be enabled for esp32s3 later when
the memprot-related issues are fixed.
- Override panic handler to dump the violation intr status
- Dump the `memprot` violation registers before calling the
real panic handler
- Handle `Illegal Instruction` exception in case of memprot permission violation
* In esp32c3 with `memprot` enabled, if we try to execute arbitrary code
from RTC_FAST_MEM we get an `Illegal Instruction` exception from the panic
handler rather than a `Memory Protection Fault`.
* This is because the Illegal Instruction interrupt occurs earlier than the
memory protection interrupt due to a higher interrupt latency.
- Added minor improvements to `panic` test app
* Replaced existing API to disable flash cache which did not disabled cache always
(`esp_flash_default_chip->os_func->start(esp_flash_default_chip->os_func_data)`)
with `spi_flash_enable_interrupts_caches_and_other_cpu`
* Included some required headers explicitly (`esp_memory_utils.h` and `esp_heap_caps.h`)
IDF_PYTHON_ENV_PATH is the path where the Python environment is created
and used. By default it is inside IDF_TOOLS_PATH. IDF_PYTHON_ENV_PATH
was exported by idf_tools.py but was not imported back. This fixes the
issue and ESP-IDF will honor the value of IDF_PYTHON_ENV_PATH.
Closes https://github.com/espressif/esp-idf/issues/10489
This adds a new outdated option, which only lists outdated
packages installed in IDF_TOOLS_PATH. It searches for the
latest installed tool version in the IDF_TOOLS_PATH/tools path and
compares it against the latest available version in the tools.json
file. If the latest version of a tool installed in IDF_TOOLS_PATH/tools
is smaller, it's reported as outdated. Nothing is reported if the tool
is up to date.
Two new tests are added. First just checks if nothing is reported in
case there is no update available. The second artificially generates
new tools.json file called tools.outdated.json and sets XTENSA_ESP32_ELF
version to 'zzzzzz'. It then checks if the XTENSA_ESP32_ELF tool
is reported as outdated by the 'zzzzzz' version.
Description of the new outdated option is addedd to docs as well.
Signed-off-by: Frantisek Hrbata <frantisek.hrbata@espressif.com>
This moves one hint, which was hardcoded in debug_ext.py to
hints.yml and adds a new one when openocd process does not have
permissions to the USB JTAG/serial device.
Also hint replacing the original 'Please check JTAG connection!'
hardcoded message is added.
Suggested-by: Alexey Lapshin <alexey.lapshin@espressif.com>
Signed-off-by: Frantisek Hrbata <frantisek.hrbata@espressif.com>
The debug targets are currently not utilizing hints, because they
are not using RunTool() helper from tools.py to spawn sub-processes.
Adjusting debug targets to use RunTool() would require some significant
changes to debug targets and RunTool() as well. Since debug targets
are already storing their output in logs, we can use these and process
them for hints.
Signed-off-by: Frantisek Hrbata <frantisek.hrbata@espressif.com>
