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Merge "feat(gcs): support guarded control stack" into integration

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Bipin Ravi 2023-04-25 07:50:22 +02:00 • committed by TrustedFirmware Code Review
commit 760fbfc490
11 changed files with 69 additions and 1 deletions
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6
docs/getting_started/build-options.rst
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@ -374,6 +374,12 @@ Common build options
can take the values 0 to 2, to align with the ``FEATURE_DETECTION``
mechanism. Default value is ``0``.
- ``ENABLE_FEAT_GCS``: Numeric value to set the bit SCR_EL3.GCSEn in EL3 to
allow use of Guarded Control Stack from EL2 as well as adding the GCS
registers to the EL2 context save/restore operations. This flag can take
the values 0 to 2, to align with the ``FEATURE_DETECTION`` mechanism.
Default value is ``0``.
- ``ENABLE_LTO``: Boolean option to enable Link Time Optimization (LTO)
support in GCC for TF-A. This option is currently only supported for
AArch64. Default is 0.