FVP: Enable PIE for RESET_TO_BL31=1
This patch enabled PIE for FVP when RESET_TO_BL31=1. The references
to BL31_BASE are replaced by BL31_START as being a symbol exported by
the linker, will create a dynamic relocation entry in .rela.dyn and
hence will be fixed up by dynamic linker at runtime. Also, we disable
RECLAIM_INIT_CODE when PIE is enabled as the init section overlay
creates some static relocations which cannot be handled by the
dynamic linker currently.
Change-Id: I86df1b0a8b2a8bbbe7c3f3c0b9a08c86c2963ec0
Signed-off-by: Soby Mathew <soby.mathew@arm.com>
diff --git a/plat/arm/common/arm_common.mk b/plat/arm/common/arm_common.mk
index 3fb1eff..23777fb 100644
--- a/plat/arm/common/arm_common.mk
+++ b/plat/arm/common/arm_common.mk
@@ -130,6 +130,11 @@
$(eval $(call assert_boolean,ARM_CRYPTOCELL_INTEG))
$(eval $(call add_define,ARM_CRYPTOCELL_INTEG))
+# Enable PIE support for RESET_TO_BL31 case
+ifeq (${RESET_TO_BL31},1)
+ ENABLE_PIE := 1
+endif
+
# CryptoCell integration relies on coherent buffers for passing data from
# the AP CPU to the CryptoCell
ifeq (${ARM_CRYPTOCELL_INTEG},1)