diff options
| author | Mark Brown <broonie@kernel.org> | 2024-11-11 18:32:58 +0000 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2024-11-12 13:19:06 +0000 |
| commit | c297aa7d3fb6755890b78b483e82c9cf07370d50 (patch) | |
| tree | 32d151ff87587ecf094eb8120fbf4f01cbf3ec72 | |
| parent | 116e50d6474e82579086c0397d2fa3999815f29e (diff) | |
kselftest/arm64: Enable build of PAC tests with LLVM=1
Currently we don't build the PAC selftests when building with LLVM=1 since
we attempt to test for PAC support in the toolchain before we've set up the
build system to point at LLVM in lib.mk, which has to be one of the last
things in the Makefile.
Since all versions of LLVM supported for use with the kernel have PAC
support we can just sidestep the issue by just assuming PAC is there when
doing a LLVM=1 build.
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20241111-arm64-selftest-pac-clang-v1-1-08599ceee418@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
| -rw-r--r-- | tools/testing/selftests/arm64/pauth/Makefile | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/tools/testing/selftests/arm64/pauth/Makefile b/tools/testing/selftests/arm64/pauth/Makefile index 72e290b0b10c..b5a1c80e0ead 100644 --- a/tools/testing/selftests/arm64/pauth/Makefile +++ b/tools/testing/selftests/arm64/pauth/Makefile @@ -7,8 +7,14 @@ CC := $(CROSS_COMPILE)gcc endif CFLAGS += -mbranch-protection=pac-ret + +# All supported LLVMs have PAC, test for GCC +ifeq ($(LLVM),1) +pauth_cc_support := 1 +else # check if the compiler supports ARMv8.3 and branch protection with PAuth pauth_cc_support := $(shell if ($(CC) $(CFLAGS) -march=armv8.3-a -E -x c /dev/null -o /dev/null 2>&1) then echo "1"; fi) +endif ifeq ($(pauth_cc_support),1) TEST_GEN_PROGS := pac |