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Merge topic 'host-distro-info'

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b9698f89df cmake_host_system_information: Make it available for all systems
5469c71a82 Refactor: Simplify `GetValue()` function calls
6c92f80f2e cmake_host_system_information: Also set `USED_FALLBACK_SCRIPT`
efe139d1b8 cmake_host_system_information: Can run fallback scripts
1e65e4a6e5 cmake_host_system_information: Can read `/etc/os-release` file
e808cbb1dd Testing: Convert `cmake_host_system_information` tests into `RunCMake`
9e831284e5 Documentation: Use definition list instead of tables
346f3de005 Refactor: Deduplicate code for `VS_nn_DIR` keys processing
...

Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: buildbot <buildbot@kitware.com>
Merge-request: !6410
This commit is contained in:
Brad King
2021-08-24 14:04:03 +00:00
committed by Kitware Robot
parent 91d5bf68ae b9698f89df
commit cf90aa5595
42 changed files with 1018 additions and 245 deletions
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Help/command/cmake_host_system_information.rst
+227 -37
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@@ -13,46 +13,236 @@ queried. The list of queried values is stored in ``<variable>``.
``<key>`` can be one of the following values:
============================= ================================================
Key Description
============================= ================================================
``NUMBER_OF_LOGICAL_CORES`` Number of logical cores
``NUMBER_OF_PHYSICAL_CORES`` Number of physical cores
``HOSTNAME`` Hostname
``FQDN`` Fully qualified domain name
``TOTAL_VIRTUAL_MEMORY`` Total virtual memory in MiB [#mebibytes]_
``AVAILABLE_VIRTUAL_MEMORY`` Available virtual memory in MiB [#mebibytes]_
``TOTAL_PHYSICAL_MEMORY`` Total physical memory in MiB [#mebibytes]_
``AVAILABLE_PHYSICAL_MEMORY`` Available physical memory in MiB [#mebibytes]_
============================= ================================================
``NUMBER_OF_LOGICAL_CORES``
Number of logical cores
.. versionadded:: 3.10
Additional ``<key>`` values are available:
``NUMBER_OF_PHYSICAL_CORES``
Number of physical cores
``HOSTNAME``
Hostname
``FQDN``
Fully qualified domain name
``TOTAL_VIRTUAL_MEMORY``
Total virtual memory in MiB [#mebibytes]_
``AVAILABLE_VIRTUAL_MEMORY``
Available virtual memory in MiB [#mebibytes]_
``TOTAL_PHYSICAL_MEMORY``
Total physical memory in MiB [#mebibytes]_
``AVAILABLE_PHYSICAL_MEMORY``
Available physical memory in MiB [#mebibytes]_
``IS_64BIT``
.. versionadded:: 3.10
One if processor is 64Bit
``HAS_FPU``
.. versionadded:: 3.10
One if processor has floating point unit
``HAS_MMX``
.. versionadded:: 3.10
One if processor supports MMX instructions
``HAS_MMX_PLUS``
.. versionadded:: 3.10
One if processor supports Ext. MMX instructions
``HAS_SSE``
.. versionadded:: 3.10
One if processor supports SSE instructions
``HAS_SSE2``
.. versionadded:: 3.10
One if processor supports SSE2 instructions
``HAS_SSE_FP``
.. versionadded:: 3.10
One if processor supports SSE FP instructions
``HAS_SSE_MMX``
.. versionadded:: 3.10
One if processor supports SSE MMX instructions
``HAS_AMD_3DNOW``
.. versionadded:: 3.10
One if processor supports 3DNow instructions
``HAS_AMD_3DNOW_PLUS``
.. versionadded:: 3.10
One if processor supports 3DNow+ instructions
``HAS_IA64``
.. versionadded:: 3.10
One if IA64 processor emulating x86
``HAS_SERIAL_NUMBER``
.. versionadded:: 3.10
One if processor has serial number
``PROCESSOR_SERIAL_NUMBER``
.. versionadded:: 3.10
Processor serial number
``PROCESSOR_NAME``
.. versionadded:: 3.10
Human readable processor name
``PROCESSOR_DESCRIPTION``
.. versionadded:: 3.10
Human readable full processor description
``OS_NAME``
.. versionadded:: 3.10
See :variable:`CMAKE_HOST_SYSTEM_NAME`
``OS_RELEASE``
.. versionadded:: 3.10
The OS sub-type e.g. on Windows ``Professional``
``OS_VERSION``
.. versionadded:: 3.10
The OS build ID
``OS_PLATFORM``
.. versionadded:: 3.10
See :variable:`CMAKE_HOST_SYSTEM_PROCESSOR`
``DISTRIB_INFO``
.. versionadded:: 3.22
Read :file:`/etc/os-release` file and define the given ``<variable>``
into a list of read variables
``DISTRIB_<name>``
.. versionadded:: 3.22
Get the ``<name>`` variable (see `man 5 os-release`_) if it exists in the
:file:`/etc/os-release` file
Example:
.. code-block:: cmake
cmake_host_system_information(RESULT PRETTY_NAME QUERY DISTRIB_PRETTY_NAME)
message(STATUS "${PRETTY_NAME}")
cmake_host_system_information(RESULT DISTRO QUERY DISTRIB_INFO)
foreach(VAR IN LISTS DISTRO)
message(STATUS "${VAR}=`${${VAR}}`")
endforeach()
Output::
-- Ubuntu 20.04.2 LTS
-- DISTRO_BUG_REPORT_URL=`https://bugs.launchpad.net/ubuntu/`
-- DISTRO_HOME_URL=`https://www.ubuntu.com/`
-- DISTRO_ID=`ubuntu`
-- DISTRO_ID_LIKE=`debian`
-- DISTRO_NAME=`Ubuntu`
-- DISTRO_PRETTY_NAME=`Ubuntu 20.04.2 LTS`
-- DISTRO_PRIVACY_POLICY_URL=`https://www.ubuntu.com/legal/terms-and-policies/privacy-policy`
-- DISTRO_SUPPORT_URL=`https://help.ubuntu.com/`
-- DISTRO_UBUNTU_CODENAME=`focal`
-- DISTRO_VERSION=`20.04.2 LTS (Focal Fossa)`
-- DISTRO_VERSION_CODENAME=`focal`
-- DISTRO_VERSION_ID=`20.04`
If :file:`/etc/os-release` file is not found, the command tries to gather OS
identification via fallback scripts. The fallback script can use `various
distribution-specific files`_ to collect OS identification data and map it
into `man 5 os-release`_ variables.
Fallback Interface Variables
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
.. variable:: CMAKE_GET_OS_RELEASE_FALLBACK_SCRIPTS
In addition to the scripts shipped with CMake, a user may append full
paths to his script(s) to the this list. The script filename has the
following format: ``NNN-<name>.cmake``, where ``NNN`` is three digits
used to apply collected scripts in a specific order.
.. variable:: CMAKE_GET_OS_RELEASE_FALLBACK_RESULT_<varname>
Variables collected by the user provided fallback script
ought to be assigned to CMake variables using this naming
convention. Example, the ``ID`` variable from the manual becomes
``CMAKE_GET_OS_RELEASE_FALLBACK_RESULT_ID``.
.. variable:: CMAKE_GET_OS_RELEASE_FALLBACK_RESULT
The fallback script ought to store names of all assigned
``CMAKE_GET_OS_RELEASE_FALLBACK_RESULT_<varname>`` variables in this list.
Example:
.. code-block:: cmake
# Try to detect some old distribution
# See also
# - http://linuxmafia.com/faq/Admin/release-files.html
#
if(NOT EXISTS "${CMAKE_SYSROOT}/etc/foobar-release")
return()
endif()
# Get the first string only
file(
STRINGS "${CMAKE_SYSROOT}/etc/foobar-release" CMAKE_GET_OS_RELEASE_FALLBACK_CONTENT
LIMIT_COUNT 1
)
#
# Example:
#
# Foobar distribution release 1.2.3 (server)
#
if(CMAKE_GET_OS_RELEASE_FALLBACK_CONTENT MATCHES "Foobar distribution release ([0-9\.]+) .*")
set(CMAKE_GET_OS_RELEASE_FALLBACK_RESULT_NAME Foobar)
set(CMAKE_GET_OS_RELEASE_FALLBACK_RESULT_PRETTY_NAME "${CMAKE_GET_OS_RELEASE_FALLBACK_CONTENT}")
set(CMAKE_GET_OS_RELEASE_FALLBACK_RESULT_ID foobar)
set(CMAKE_GET_OS_RELEASE_FALLBACK_RESULT_VERSION ${CMAKE_MATCH_1})
set(CMAKE_GET_OS_RELEASE_FALLBACK_RESULT_VERSION_ID ${CMAKE_MATCH_1})
list(
APPEND CMAKE_GET_OS_RELEASE_FALLBACK_RESULT
CMAKE_GET_OS_RELEASE_FALLBACK_RESULT_NAME
CMAKE_GET_OS_RELEASE_FALLBACK_RESULT_PRETTY_NAME
CMAKE_GET_OS_RELEASE_FALLBACK_RESULT_ID
CMAKE_GET_OS_RELEASE_FALLBACK_RESULT_VERSION
CMAKE_GET_OS_RELEASE_FALLBACK_RESULT_VERSION_ID
)
endif()
unset(CMAKE_GET_OS_RELEASE_FALLBACK_CONTENT)
============================= ================================================
Key Description
============================= ================================================
``IS_64BIT`` One if processor is 64Bit
``HAS_FPU`` One if processor has floating point unit
``HAS_MMX`` One if processor supports MMX instructions
``HAS_MMX_PLUS`` One if processor supports Ext. MMX instructions
``HAS_SSE`` One if processor supports SSE instructions
``HAS_SSE2`` One if processor supports SSE2 instructions
``HAS_SSE_FP`` One if processor supports SSE FP instructions
``HAS_SSE_MMX`` One if processor supports SSE MMX instructions
``HAS_AMD_3DNOW`` One if processor supports 3DNow instructions
``HAS_AMD_3DNOW_PLUS`` One if processor supports 3DNow+ instructions
``HAS_IA64`` One if IA64 processor emulating x86
``HAS_SERIAL_NUMBER`` One if processor has serial number
``PROCESSOR_SERIAL_NUMBER`` Processor serial number
``PROCESSOR_NAME`` Human readable processor name
``PROCESSOR_DESCRIPTION`` Human readable full processor description
``OS_NAME`` See :variable:`CMAKE_HOST_SYSTEM_NAME`
``OS_RELEASE`` The OS sub-type e.g. on Windows ``Professional``
``OS_VERSION`` The OS build ID
``OS_PLATFORM`` See :variable:`CMAKE_HOST_SYSTEM_PROCESSOR`
============================= ================================================
.. rubric:: Footnotes
.. [#mebibytes] One MiB (mebibyte) is equal to 1024x1024 bytes.
.. _man 5 os-release: https://www.freedesktop.org/software/systemd/man/os-release.html
.. _various distribution-specific files: http://linuxmafia.com/faq/Admin/release-files.html