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authorCraig Scott <craig.scott@crascit.com>2024-03-22 10:11:50 (GMT)
committerCraig Scott <craig.scott@crascit.com>2024-03-25 21:03:14 (GMT)
commit6ba2bbc0f34eb2a0b2dac2eb84755a551fa34203 (patch)
tree7f41c454c87f5d06f0f12714b3b1f05914816eda /Help
parentc39bc6e412f3ee7e28844b5ecaa0186790ce78e6 (diff)
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Help: Restructure and improve LINKER_TYPE docs
Diffstat (limited to 'Help')
-rw-r--r--Help/prop_tgt/LINKER_TYPE.rst24
-rw-r--r--Help/variable/CMAKE_LINKER_TYPE.rst4
-rw-r--r--Help/variable/LINKER_PREDEFINED_TYPES.txt61
3 files changed, 46 insertions, 43 deletions
diff --git a/Help/prop_tgt/LINKER_TYPE.rst b/Help/prop_tgt/LINKER_TYPE.rst
index 90a663d..0a016fe 100644
--- a/Help/prop_tgt/LINKER_TYPE.rst
+++ b/Help/prop_tgt/LINKER_TYPE.rst
@@ -6,21 +6,23 @@ LINKER_TYPE
Specify which linker will be used for the link step. The property value may use
:manual:`generator expressions <cmake-generator-expressions(7)>`.
+.. include:: ../variable/LINKER_PREDEFINED_TYPES.txt
+
+This property is not supported on :generator:`Green Hills MULTI` and
+:generator:`Visual Studio 9 2008` generators.
+
+The implementation details for the selected linker will be provided by the
+:variable:`CMAKE_<LANG>_USING_LINKER_<TYPE>` variable. For example:
+
.. code-block:: cmake
add_library(lib1 SHARED ...)
set_property(TARGET lib1 PROPERTY LINKER_TYPE LLD)
This specifies that ``lib1`` should use linker type ``LLD`` for the link step.
-The implementation details will be provided by the variable
-:variable:`CMAKE_<LANG>_USING_LINKER_<TYPE>` with ``<TYPE>`` having the value
-``LLD``.
+The command line options that will be passed to the toolchain will be provided
+by the ``CMAKE_<LANG>_USING_LINKER_LLD`` variable.
-This property is not supported on :generator:`Green Hills MULTI` and
-:generator:`Visual Studio 9 2008` generators.
-
-.. note::
- It is assumed that the linker specified is fully compatible with the standard
- one. CMake will not do any options translation.
-
-.. include:: ../variable/LINKER_PREDEFINED_TYPES.txt
+Note that the linker would typically be set using :variable:`CMAKE_LINKER_TYPE`
+for the whole build rather than setting the ``LINKER_TYPE`` property on
+individual targets.
diff --git a/Help/variable/CMAKE_LINKER_TYPE.rst b/Help/variable/CMAKE_LINKER_TYPE.rst
index ac72c38..e2989ec 100644
--- a/Help/variable/CMAKE_LINKER_TYPE.rst
+++ b/Help/variable/CMAKE_LINKER_TYPE.rst
@@ -5,10 +5,6 @@ CMAKE_LINKER_TYPE
Specify which linker will be used for the link step.
-.. note::
- It is assumed that the linker specified is fully compatible with the standard
- one. CMake will not do any options translation.
-
This variable is used to initialize the :prop_tgt:`LINKER_TYPE` property
on each target created by a call to :command:`add_library` or
:command:`add_executable`. It is meaningful only for targets having a
diff --git a/Help/variable/LINKER_PREDEFINED_TYPES.txt b/Help/variable/LINKER_PREDEFINED_TYPES.txt
index e8cb19f..69ac1c2 100644
--- a/Help/variable/LINKER_PREDEFINED_TYPES.txt
+++ b/Help/variable/LINKER_PREDEFINED_TYPES.txt
@@ -1,59 +1,64 @@
+.. note::
+ It is assumed that the linker specified is fully compatible with the default
+ one the compiler would normally invoke. CMake will not do any option
+ translation.
+
Linker types are case-sensitive and may only contain letters, numbers and
underscores. Linker types defined in all uppercase are reserved for CMake's own
built-in types. The pre-defined linker types are:
``DEFAULT``
- This type corresponds to standard linking, essentially equivalent to
- not specifying :prop_tgt:`LINKER_TYPE` target property.
+ This type corresponds to standard linking, essentially equivalent to the
+ :prop_tgt:`LINKER_TYPE` target property not being set at all.
``SYSTEM``
- Use the standard linker delivered by the platform or the standard toolkit
- (for example, ``SYSTEM`` imply Microsoft linker for all ``MSVC`` compatible
- compilers). This type is supported for the following platforms/compilers:
+ Use the standard linker provided by the platform or toolchain. For example,
+ this implies the Microsoft linker for all ``MSVC``-compatible compilers.
+ This type is supported for the following platform-compiler combinations:
- * Linux, for ``GNU``, ``Clang``, ``LLVMFlang`` and ``NVIDIA`` compilers.
- * All Apple variants for ``AppleClang``, ``Clang`` and ``GNU`` compilers.
- * Windows, for ``MSVC``, ``GNU``, ``Clang`` and ``NVIDIA`` compilers.
+ * Linux: ``GNU``, ``Clang``, ``LLVMFlang`` and ``NVIDIA`` compilers.
+ * All Apple variants: ``AppleClang``, ``Clang`` and ``GNU`` compilers.
+ * Windows: ``MSVC``, ``GNU``, ``Clang`` and ``NVIDIA`` compilers.
``LLD``
Use the ``LLVM`` linker. This type is supported for the following
- platforms/compilers:
+ platform-compiler combinations:
- * Linux, for ``GNU``, ``Clang``, ``LLVMFlang`` and ``NVIDIA`` compilers.
- * All Apple variants for ``Clang`` and ``AppleClang`` compilers.
- * Windows, for ``GNU``, ``Clang`` compilers with ``GNU`` front-end and
- ``CLang``, ``MSVC`` and ``NVIDIA`` compilers with ``MSVC`` front-end.
+ * Linux: ``GNU``, ``Clang``, ``LLVMFlang`` and ``NVIDIA`` compilers.
+ * All Apple variants: ``Clang`` and ``AppleClang`` compilers.
+ * Windows: ``GNU``, ``Clang``, ``Clang`` compilers with ``GNU`` front-end,
+ ``MSVC`` and ``NVIDIA`` compilers with ``MSVC`` front-end.
``BFD``
Use the ``GNU`` linker. This type is supported for the following
- platforms/compilers:
+ platform-compiler combinations:
- * Linux, for ``GNU``, ``Clang``, ``LLVMFlang`` and ``NVIDIA`` compilers.
- * Windows, for ``GNU``, ``Clang`` compilers with ``GNU`` front-end.
+ * Linux: ``GNU``, ``Clang``, ``LLVMFlang`` and ``NVIDIA`` compilers.
+ * Windows: ``GNU``, ``Clang`` compilers with ``GNU`` front-end.
``GOLD``
- Supported on Linux platform for ``GNU``, ``Clang``, ``LLVMFlang`` and
+ Supported on Linux platform with ``GNU``, ``Clang``, ``LLVMFlang`` and
``NVIDIA`` compilers.
``MOLD``
Use the `mold linker <https://github.com/rui314/mold>`_. This type is
- supported on the following platforms:
+ supported on the following platform-compiler combinations:
- * Linux platform for ``GNU``, ``Clang``, ``LLVMFlang`` and ``NVIDIA``
- compilers.
- * All Apple variants for ``Clang`` and ``AppleClang`` compilers as an
- alias to ``SOLD``.
+ * Linux: ``GNU``, ``Clang``, ``LLVMFlang`` and ``NVIDIA`` compilers.
+ * All Apple variants: ``Clang`` and ``AppleClang`` compilers (acts as an
+ alias to the `sold linker`_).
``SOLD``
- Use the `sold linker <https://github.com/bluewhalesystems/sold>`_. This type
- is only supported on Apple platforms for ``Clang`` and ``AppleClang``
- compilers.
+ Use the `sold linker`_. This type is only supported on Apple platforms
+ with ``Clang`` and ``AppleClang`` compilers.
``APPLE_CLASSIC``
Use the Apple linker in the classic behavior (i.e. before ``Xcode 15.0``).
- This type is only supported on Apple platforms for ``GNU``, ``Clang`` and
+ This type is only supported on Apple platforms with ``GNU``, ``Clang`` and
``AppleClang`` compilers.
``MSVC``
- Use the Microsoft linker. This type is only supported on Windows
- platform for ``MSVC`` and ``Clang`` compiler with ``MSVC`` front-end.
+ Use the Microsoft linker. This type is only supported on the Windows
+ platform with ``MSVC`` and ``Clang`` compiler with ``MSVC`` front-end.
+
+.. _sold linker: https://github.com/bluewhalesystems/sold