53 lines
1.4 KiB
ReStructuredText
53 lines
1.4 KiB
ReStructuredText
.. zephyr:code-sample:: posix-uname
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:name: uname()
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Use ``uname()`` to acquire system information and output it to the console.
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Overview
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********
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In this sample application, the POSIX `uname()`_ function is used to acquire system information and
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it is output to the console. Additionally, uname is added as a shell command and system information
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is displayed according to the option(s) provided for the command.
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Building and Running
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********************
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This project outputs to the console. It can be built and executed on QEMU as follows:
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.. zephyr-app-commands::
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:zephyr-app: samples/posix/uname
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:host-os: unix
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:board: qemu_x86
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:goals: run
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:compact:
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For comparison, to build directly for your host OS if it is POSIX compliant (for ex. Linux):
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.. code-block:: console
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cd samples/posix/uname
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make -f Makefile.host
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The make output file will be located in samples/posix/uname/build.
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Sample Output
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=============
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.. code-block:: console
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Printing everything in utsname...
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sysname[7]: Zephyr
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nodename[7]: zephyr
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release[13]: 3.5.99
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version[61]: zephyr-v3.5.0-3515-g10156f5f1d9c Jan 9 2024 22:23:04
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machine[4]: x86
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uart:~$ uname -a
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Zephyr zephyr 3.5.99 zephyr-v3.5.0-3515-g10156f5f1d9c Jan 9 2024 22:23:04 x86 qemu_x86
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uart:~$ uname -smi
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Zephyr x86 qemu_x86
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.. _uname(): https://pubs.opengroup.org/onlinepubs/9699919799/functions/uname.html
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