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| author | Antonio Nino Diaz <antonio.ninodiaz@arm.com> | 2019-01-31 11:01:26 +0000 |
|---|---|---|
| committer | Antonio Nino Diaz <antonio.ninodiaz@arm.com> | 2019-02-27 11:58:10 +0000 |
| commit | 88cfd9a604cee29cc6536a43cd136b7eef0b78b9 (patch) | |
| tree | 532afae2b89a70c75b7d3389c34c78ac715744e6 /bl31/bl31.mk | |
| parent | dcbfa11bd96af98dbb93df3410008f025a131d59 (diff) | |
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.mk | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/bl31/bl31.mk b/bl31/bl31.mk index c9ba926c..10feae16 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 |