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authorAntonio Nino Diaz <antonio.ninodiaz@arm.com>2019-01-31 11:01:26 +0000
committerAntonio Nino Diaz <antonio.ninodiaz@arm.com>2019-02-27 11:58:10 +0000
commit88cfd9a604cee29cc6536a43cd136b7eef0b78b9 (patch)
tree532afae2b89a70c75b7d3389c34c78ac715744e6 /bl31/bl31.mk
parentdcbfa11bd96af98dbb93df3410008f025a131d59 (diff)
downloadtrusted-firmware-a-88cfd9a604cee29cc6536a43cd136b7eef0b78b9.tar.gz
BL31: Enable pointer authentication support
The size increase after enabling options related to ARMv8.3-PAuth is: +----------------------------+-------+-------+-------+--------+ | | text | bss | data | rodata | +----------------------------+-------+-------+-------+--------+ | CTX_INCLUDE_PAUTH_REGS = 1 | +192 | +1536 | +0 | +0 | | | 0.3% | 3.1% | | | +----------------------------+-------+-------+-------+--------+ | ENABLE_PAUTH = 1 | +1848 | +1536 | +16 | +0 | | | 3.3% | 3.1% | 3.1% | | +----------------------------+-------+-------+-------+--------+ Results calculated with the following build configuration: make PLAT=fvp SPD=tspd DEBUG=1 \ SDEI_SUPPORT=1 \ EL3_EXCEPTION_HANDLING=1 \ TSP_NS_INTR_ASYNC_PREEMPT=1 \ CTX_INCLUDE_PAUTH_REGS=1 \ ENABLE_PAUTH=1 Change-Id: I43db7e509a4f39da6599ec2faa690d197573ec1b Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
Diffstat (limited to 'bl31/bl31.mk')
-rw-r--r--bl31/bl31.mk4
1 files changed, 4 insertions, 0 deletions
diff --git a/bl31/bl31.mk b/bl31/bl31.mk
index c9ba926c59..10feae161f 100644
--- a/bl31/bl31.mk
+++ b/bl31/bl31.mk
@@ -75,6 +75,10 @@ ifeq (${ENABLE_MPAM_FOR_LOWER_ELS},1)
BL31_SOURCES += lib/extensions/mpam/mpam.c
endif
+ifeq (${ENABLE_PAUTH},1)
+BL31_CFLAGS += -msign-return-address=non-leaf
+endif
+
ifeq (${WORKAROUND_CVE_2017_5715},1)
BL31_SOURCES += lib/cpus/aarch64/wa_cve_2017_5715_bpiall.S \
lib/cpus/aarch64/wa_cve_2017_5715_mmu.S