Kernel documentation states that it will change PAuth keys on exec() calls.
Verify that all keys are correctly switched to new ones.
Cc: Shuah Khan <shuah@xxxxxxxxxx>
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: Will Deacon <will@xxxxxxxxxx>
Signed-off-by: Boyan Karatotev <boyan.karatotev@xxxxxxx>
---
tools/testing/selftests/arm64/pauth/Makefile | 4 +
.../selftests/arm64/pauth/exec_target.c | 35 +++++
tools/testing/selftests/arm64/pauth/helper.h | 10 ++
tools/testing/selftests/arm64/pauth/pac.c | 148 ++++++++++++++++++
4 files changed, 197 insertions(+)
create mode 100644 tools/testing/selftests/arm64/pauth/exec_target.c
diff --git a/tools/testing/selftests/arm64/pauth/Makefile b/tools/testing/selftests/arm64/pauth/Makefile
index a017d1c8dd58..2e237b21ccf6 100644
--- a/tools/testing/selftests/arm64/pauth/Makefile
+++ b/tools/testing/selftests/arm64/pauth/Makefile
@@ -5,6 +5,7 @@ CFLAGS += -mbranch-protection=pac-ret