kernel: Add k_thread_runtime_stats_is_enabled function

[rruuaanng]

Add 'k_thread_runtime_stats_is_enabled' to 'usage.c', which's used to check whether runtime statistics collection is enabled for a thread.

It can determine whether the thread has enabled runtime statistics collection when the program is running. It allows users to add conditional statements based on this function when using it.

for example:

void f()
{
    // Assume there is a thread id
    if (k_thread_runtime_stats_is_enabled(id)) {
        /* do something */
    }
    ...
}

And it can provide a complete support when similar operations are needed. for example enable, disable, is_enabled.
For example, its use in the implementation of CLOCK_THREAD_CPUTIME_ID actually lacks k_thread_runtime_stats_is_enabled, which makes the entire function impossible to implement safely. It is necessary.

[cfriedt]

Thanks for all of the POSIX clock work.

Just a question / suggestion regarding runtime function call overhead.

[cfriedt]

Just some suggestions around CONFIG_POSIX_THREAD_CPUTIME

[rruuaanng]

I've made change, Please riewer again!

[peter-mitsis]

Kernel side seems reasonable to me.

[cfriedt]

My personal understanding of this is that the test should be submitted with the new function, and make sure that they can be synchronized when rolling back later.

That's one way to do it, but in Zephyr we almost always separate code and test commits.

[rruuaanng]

I've made change :) @cfriedt

[stephanosio]

Apart from the comments below, the commits should be reordered such that kernel: Add k_thread_runtime_stats_is_enabled function comes before posix: Add posix CLOCK_THREAD_CPUTIME_ID support.

[cfriedt]

Forgot I had one pending comment 😬

[rruuaanng]

This PR has been deferred to 4.1. Maybe I won't be in such a hurry to handle it. I will prepare a PR for the implementation of DT_FOREACH_ANCESTOR today. Stay tuned :)

[rruuaanng]

I've change them, please review again :)
@cfriedt @stephanosio

[rruuaanng]

CI throws. Emmm, I don't know :(

dts.cmake

warning: STDOUT_CONSOLE (defined at lib/libc/Kconfig:135) was assigned the value 'y' but got the
value 'n'. Check these unsatisfied dependencies: CONSOLE_HAS_DRIVER (=n). See
http://docs.zephyrproject.org/latest/kconfig.html#CONFIG_STDOUT_CONSOLE and/or look up
STDOUT_CONSOLE in the menuconfig/guiconfig interface. The Application Development Primer, Setting
Configuration Values, and Kconfig - Tips and Best Practices sections of the manual might be helpful
too.

Parsing /__w/zephyr/zephyr/Kconfig
Loaded configuration '/__w/zephyr/zephyr/boards/m5stack/m5stack_cores3/m5stack_cores3_appcpu_defconfig'
Merged configuration '/__w/zephyr/zephyr/samples/synchronization/prj.conf'
Merged configuration '/__w/zephyr/zephyr/twister-out/m5stack_cores3_esp32s3_appcpu/samples/synchronization/sample.kernel.synchronization/zephyr/misc/generated/extra_kconfig_options.conf'
Configuration saved to '/__w/zephyr/zephyr/twister-out/m5stack_cores3_esp32s3_appcpu/samples/synchronization/sample.kernel.synchronization/zephyr/.config'
Kconfig header saved to '/__w/zephyr/zephyr/twister-out/m5stack_cores3_esp32s3_appcpu/samples/synchronization/sample.kernel.synchronization/zephyr/include/generated/zephyr/autoconf.h'
-- Found GnuLd: /opt/toolchains/zephyr-sdk-0.17.0/xtensa-espressif_esp32s3_zephyr-elf/xtensa-espressif_esp32s3_zephyr-elf/bin/ld.bfd (found version "2.38") 
-- The C compiler identification is GNU 12.2.0
-- The CXX compiler identification is GNU 12.2.0
-- The ASM compiler identification is GNU
-- Found assembler: /opt/toolchains/zephyr-sdk-0.17.0/xtensa-espressif_esp32s3_zephyr-elf/bin/xtensa-espressif_esp32s3_zephyr-elf-gcc
-- Espressif HAL path: /__w/zephyr/modules/hal/espressif
CMake Error at /__w/zephyr/zephyr/cmake/modules/extensions.cmake:4178 (message):
  dt_reg_addr(image_off ...) missing required argument: PATH
Call Stack (most recent call first):
  /__w/zephyr/zephyr/soc/espressif/esp32s3/CMakeLists.txt:78 (dt_reg_addr)

[cfriedt]

@rruuaanng - this seems like an unrelated issue in CI. You might need to rebase once it's resolved on main.

[ycsin]

refresh +1 while I'm here before the CI passes

[cfriedt]

Probably needs a rebase. qemu_arc_em was doing something kind of wacky, so I made a pr to disable it for the test that's failing.

[rruuaanng]

Ehm... There are really many errors in the unittest

RunID: f2a3ca8e6d3fa1c0d4a920a1812b95e8
PROJECT EXECUTION FAILED

INFO    - /__w/zephyr/zephyr/twister-out/qemu_x86_64_atom/tests/kernel/smp_boot_delay/kernel.multiprocessing.smp_boot_delay.minimallibc/handler.log
INFO    - 4 Iteration:
INFO    - Adding tasks to the queue...
INFO    - Added initial list of jobs to queue

INFO    - 698/698 qemu_x86_64/atom          kernel.multiprocessing.smp_boot_delay.minimallibc  FAILED Testsuite failed (qemu 1.354s)
INFO    - /__w/zephyr/zephyr/twister-out/qemu_x86_64_atom/tests/kernel/smp_boot_delay/kernel.multiprocessing.smp_boot_delay.minimallibc/handler.log
ERROR   - SeaBIOS (version zephyr-v1.0.0-0-g31d4e0e-dirty-20200714_234759-fv-az50-zephyr)
Booting from ROM..
*** Booting Zephyr OS build v4.0.0-1254-gdce4594f9040 ***
Running TESTSUITE smp_boot_delay