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[4/8] ref-manual/variables.rst: document the LTO variable

Message ID 20260302-release-notes-6-0-v1-4-9662dee58591@bootlin.com
State New
Headers show
Series Update the documentation for 6.0 (Wrynose) | expand

Commit Message

Antonin Godard March 2, 2026, 9:37 a.m. UTC 
Added by 228b5a91516c ("lto: Add global LTO distro policy file") in
OE-Core.

Signed-off-by: Antonin Godard <antonin.godard@bootlin.com>
---
 documentation/ref-manual/variables.rst | 7 +++++++
 1 file changed, 7 insertions(+)
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Patch

diff --git a/documentation/ref-manual/variables.rst b/documentation/ref-manual/variables.rst
index 1fedb98d2..579faf7be 100644
--- a/documentation/ref-manual/variables.rst
+++ b/documentation/ref-manual/variables.rst
@@ -5893,6 +5893,13 @@  system and gives an overview of their function and contents.
       For the directory containing logs specific to each task, see the
       :term:`T` variable.
 
+   :term:`LTO`
+      The :term:`LTO` variable define the flags specific to the ``lto``
+      :term:`distro feature <DISTRO_FEATURES>`. The value of this variable is
+      appended to the :term:`TARGET_LDFLAGS` variable, adding `Link-Time
+      Optimisation <https://gcc.gnu.org/wiki/LinkTimeOptimization>`__ flags to
+      the linker in-use.
+
    :term:`MACHINE`
       Specifies the target device for which the image is built. You define
       :term:`MACHINE` in the ``local.conf`` file found in the