Makefile: Add FEAT_RNG support define
Define ENABLE_FEAT_RNG that describes whether the
armv8.5 FEAT_RNG is supported in this build. This
allows conditional inclusion of code targetting
RNDR and RNDRRS registers.
Signed-off-by: Tomas Pilar <tomas@nuviainc.com>
Change-Id: Idd632f8b9bc20ea3d8793f55ead88fa12cb08821
diff --git a/Makefile b/Makefile
index 2d5a5bb..a3a79f8 100644
--- a/Makefile
+++ b/Makefile
@@ -242,6 +242,9 @@
$(info Arm Architecture Features specified: $(subst +, ,$(arch-features)))
endif # arch-features
+# Determine if FEAT_RNG is supported
+ENABLE_FEAT_RNG = $(if $(findstring rng,${arch-features}),1,0)
+
ifneq ($(findstring armclang,$(notdir $(CC))),)
TF_CFLAGS_aarch32 = -target arm-arm-none-eabi $(march32-directive)
TF_CFLAGS_aarch64 = -target aarch64-arm-none-eabi $(march64-directive)
@@ -940,6 +943,7 @@
RAS_TRAP_LOWER_EL_ERR_ACCESS \
COT_DESC_IN_DTB \
USE_SP804_TIMER \
+ ENABLE_FEAT_RNG \
)))
$(eval $(call assert_numerics,\
@@ -1030,6 +1034,7 @@
RAS_TRAP_LOWER_EL_ERR_ACCESS \
COT_DESC_IN_DTB \
USE_SP804_TIMER \
+ ENABLE_FEAT_RNG \
)))
ifeq (${SANITIZE_UB},trap)