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feat(plat/zynqmp): disable the -mbranch-protection flag 

With new gcc11.2 by default the -mbranch-protection is
set to "standard" which is leading to increase the text
section by 4Kb. As the ZynqMP uses the ARMv8 architecture,
so there is no impact when we disable the branch protection.
These instructions do not provide the branch protection in
architectures before Armv8.3-A.

Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@xilinx.com>
Acked-by: Michal Simek <michal.simek@xilinx.com>
Change-Id: I36f7a55abf99f50df2ee265255598d83b1f480c6
This commit is contained in:
Venkatesh Yadav Abbarapu 2021-12-06 21:28:34 -07:00
parent 3210a434d4
commit 67abd4762b
1 changed files with 1 additions and 0 deletions
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plat/xilinx/zynqmp/platform.mk
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@ -118,6 +118,7 @@ BL31_SOURCES += plat/xilinx/zynqmp/zynqmp_ehf.c \
endif
BL31_CPPFLAGS += -fno-jump-tables
TF_CFLAGS_aarch64 += -mbranch-protection=none
ifneq (${RESET_TO_BL31},1)
$(error "Using BL31 as the reset vector is only one option supported on ZynqMP. Please set RESET_TO_BL31 to 1.")