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diff --git a/share/cmake-3.22/Help/command/cmake_host_system_information.rst b/share/cmake-3.22/Help/command/cmake_host_system_information.rst new file mode 100644 index 0000000..998e146 --- /dev/null +++ b/share/cmake-3.22/Help/command/cmake_host_system_information.rst @@ -0,0 +1,248 @@ +cmake_host_system_information +----------------------------- + +Query host system specific information. + +.. code-block:: cmake + + cmake_host_system_information(RESULT <variable> QUERY <key> ...) + +Queries system information of the host system on which cmake runs. +One or more ``<key>`` can be provided to select the information to be +queried. The list of queried values is stored in ``<variable>``. + +``<key>`` can be one of the following values: + +``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]_ + +``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) + + +.. 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 |