CFI: Run the tests only on supported architectures/OSs.

Specifically, only run the cfi-icall tests on x86/x86_64, and add
an XFAIL for darwin.

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@247325 91177308-0d34-0410-b5e6-96231b3b80d8

3 files changed, 57 insertions, 0 deletions

diff --git a/test/cfi/icall/bad-signature.c b/test/cfi/icall/bad-signature.c
new file mode 100644
index 000000000..43de1178f
--- /dev/null
+++ b/test/cfi/icall/bad-signature.c
@@ -0,0 +1,27 @@
+// RUN: %clangxx -o %t1 %s
+// RUN: %t1 2>&1 | FileCheck --check-prefix=NCFI %s
+
+// RUN: %clangxx_cfi -o %t2 %s
+// RUN: %expect_crash %t2 2>&1 | FileCheck --check-prefix=CFI %s
+
+// RUN: %clangxx_cfi_diag -g -o %t3 %s
+// RUN: %t3 2>&1 | FileCheck --check-prefix=CFI-DIAG %s
+
+#include <stdio.h>
+
+void f() {
+}
+
+int main() {
+  // CFI: 1
+  // NCFI: 1
+  fprintf(stderr, "1\n");
+
+  // CFI-DIAG: runtime error: control flow integrity check for type 'void (int)' failed during indirect function call
+  // CFI-DIAG: f() defined here
+  ((void (*)(int))f)(42); // UB here
+
+  // CFI-NOT: 2
+  // NCFI: 2
+  fprintf(stderr, "2\n");
+}
diff --git a/test/cfi/icall/external-call.c b/test/cfi/icall/external-call.c
new file mode 100644
index 000000000..43fc25207
--- /dev/null
+++ b/test/cfi/icall/external-call.c
@@ -0,0 +1,27 @@
+// RUN: %clangxx_cfi -o %t1 %s
+// RUN: %t1 c 1 2>&1 | FileCheck --check-prefix=CFI %s
+// RUN: %t1 s 2 2>&1 | FileCheck --check-prefix=CFI %s
+
+// This test uses jump tables containing PC-relative references to external
+// symbols, which the Mach-O object writer does not currently support.
+// XFAIL: darwin
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <math.h>
+
+int main(int argc, char **argv) {
+  // CFI: 1
+  fprintf(stderr, "1\n");
+
+  double (*fn)(double);
+  if (argv[1][0] == 's')
+    fn = sin;
+  else
+    fn = cos;
+
+  fn(atof(argv[2]));
+
+  // CFI: 2
+  fprintf(stderr, "2\n");
+}
diff --git a/test/cfi/icall/lit.local.cfg b/test/cfi/icall/lit.local.cfg
new file mode 100644
index 000000000..db08765a2
--- /dev/null
+++ b/test/cfi/icall/lit.local.cfg
@@ -0,0 +1,3 @@
+# The cfi-icall checker is only supported on x86 and x86_64 for now.
+if config.root.host_arch not in ['x86', 'x86_64']:
+  config.unsupported = True