diff options
Diffstat (limited to 'docs/getting_started/build-options.rst')
| -rw-r--r-- | docs/getting_started/build-options.rst | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/docs/getting_started/build-options.rst b/docs/getting_started/build-options.rst index f207886fb..81903e140 100644 --- a/docs/getting_started/build-options.rst +++ b/docs/getting_started/build-options.rst @@ -88,6 +88,7 @@ Common build options - 1: Enables all types of branch protection features - 2: Return address signing to its standard level - 3: Extend the signing to include leaf functions +- 4: Turn on branch target identification mechanism The table below summarizes ``BRANCH_PROTECTION`` values, GCC compilation options and resulting PAuth/BTI features. @@ -103,6 +104,8 @@ Common build options +-------+--------------+-------+-----+ | 3 | pac-ret+leaf | Y | N | +-------+--------------+-------+-----+ + | 4 | bti | N | Y | + +-------+--------------+-------+-----+ This option defaults to 0 and this is an experimental feature. Note that Pointer Authentication is enabled for Non-secure world |