kselftest/arm64: Add framework support for GCS to signal handling tests

Teach the framework about the GCS signal context, avoiding warnings on
the unknown context.

Reviewed-by: Thiago Jung Bauermann <thiago.bauermann@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20241001-arm64-gcs-v13-31-222b78d87eee@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

diff --git a/tools/testing/selftests/arm64/signal/testcases/testcases.c b/tools/testing/selftests/arm64/signal/testcases/testcases.c
index e6daa94fcd2e1e50148a7f233c82a73fb9403f4c..0c1a6b26afac499057da551c52fb4f990dd28374 100644 (file)
--- a/tools/testing/selftests/arm64/signal/testcases/testcases.c
+++ b/tools/testing/selftests/arm64/signal/testcases/testcases.c
@@ -198,6 +198,13 @@ bool validate_reserved(ucontext_t *uc, size_t resv_sz, char **err)
                                *err = "Bad size for fpmr_context";
                        new_flags |= FPMR_CTX;
                        break;
+               case GCS_MAGIC:
+                       if (flags & GCS_CTX)
+                               *err = "Multiple GCS_MAGIC";
+                       if (head->size != sizeof(struct gcs_context))
+                               *err = "Bad size for gcs_context";
+                       new_flags |= GCS_CTX;
+                       break;
                case EXTRA_MAGIC:
                        if (flags & EXTRA_CTX)
                                *err = "Multiple EXTRA_MAGIC";

diff --git a/tools/testing/selftests/arm64/signal/testcases/testcases.h b/tools/testing/selftests/arm64/signal/testcases/testcases.h
index 9872b89127144456ea5813c4aac66cfc1ceab7e9..98b97efdda232944664b26467726a9003063b5ca 100644 (file)
--- a/tools/testing/selftests/arm64/signal/testcases/testcases.h
+++ b/tools/testing/selftests/arm64/signal/testcases/testcases.h
@@ -20,6 +20,7 @@
 #define EXTRA_CTX      (1 << 3)
 #define ZT_CTX         (1 << 4)
 #define FPMR_CTX       (1 << 5)
+#define GCS_CTX                (1 << 6)
 
 #define KSFT_BAD_MAGIC 0xdeadbeef