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| author | Antonio Nino Diaz <antonio.ninodiaz@arm.com> | 2019-02-26 11:41:03 +0000 |
|---|---|---|
| committer | Antonio Nino Diaz <antonio.ninodiaz@arm.com> | 2019-02-27 11:58:10 +0000 |
| commit | 67b6ff9f8ccd84cea1627d738f3e2d4eb0a789e1 (patch) | |
| tree | ce226614498b06f2c9bb078ccb3cc1b189adf1b2 /bl32/tsp/tsp.mk | |
| parent | 88cfd9a604cee29cc6536a43cd136b7eef0b78b9 (diff) | |
| download | platform_external_arm-trusted-firmware-67b6ff9f8ccd84cea1627d738f3e2d4eb0a789e1.tar.gz platform_external_arm-trusted-firmware-67b6ff9f8ccd84cea1627d738f3e2d4eb0a789e1.tar.bz2 platform_external_arm-trusted-firmware-67b6ff9f8ccd84cea1627d738f3e2d4eb0a789e1.zip | |
TSP: 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 | +40 | +0 | +0 | +0 |
| | 0.4% | | | |
+----------------------------+-------+-------+-------+--------+
| ENABLE_PAUTH = 1 | +352 | +0 | +16 | +0 |
| | 3.1% | | 15.8% | |
+----------------------------+-------+-------+-------+--------+
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: I6cc1fe0b2345c547dcef66f98758c4eb55fe5ee4
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
Diffstat (limited to 'bl32/tsp/tsp.mk')
| -rw-r--r-- | bl32/tsp/tsp.mk | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/bl32/tsp/tsp.mk b/bl32/tsp/tsp.mk index 4ea3dfb9f..b1fe7ff60 100644 --- a/bl32/tsp/tsp.mk +++ b/bl32/tsp/tsp.mk @@ -1,5 +1,5 @@ # -# Copyright (c) 2013-2016, ARM Limited and Contributors. All rights reserved. +# Copyright (c) 2013-2019, ARM Limited and Contributors. All rights reserved. # # SPDX-License-Identifier: BSD-3-Clause # @@ -17,6 +17,11 @@ BL32_SOURCES += bl32/tsp/tsp_main.c \ BL32_LINKERFILE := bl32/tsp/tsp.ld.S +# This flag determines whether pointer authentication is used in the TSP or not +ifeq ($(ENABLE_PAUTH),1) +BL32_CFLAGS += -msign-return-address=non-leaf +endif + # This flag determines if the TSPD initializes BL32 in tspd_init() (synchronous # method) or configures BL31 to pass control to BL32 instead of BL33 # (asynchronous method). |