Broken tests in libffi testsuite

[Andrew Haley <aph at redhat dot com>]

Following our discussion about the fact that return values are
full-word-sized, here are some tests that were using libffi
incorrectly, and thus failing on (big-endian)
powerpc64-redhat-linux-gnu.

With these changes I get a clean test run.

Andrew.


2013-11-15    Andrew Haley <aph@redhat.com>

	* testsuite/libffi.call/va_struct1.c (main): Fix broken test.
	* testsuite/libffi.call/cls_uint_va.c (cls_ret_T_fn): Likewise
	* testsuite/libffi.call/cls_struct_va1.c (test_fn): Likewise.
	* testsuite/libffi.call/va_1.c (main): Likewise.

diff --git a/testsuite/libffi.call/cls_struct_va1.c b/testsuite/libffi.call/cls_struct_va1.c
index 175ed96..6d1fdae 100644
--- a/testsuite/libffi.call/cls_struct_va1.c
+++ b/testsuite/libffi.call/cls_struct_va1.c
@@ -35,7 +35,7 @@ test_fn (ffi_cif* cif __UNUSED__, void* resp,
   printf ("%d %d %d %d %d %d %d %d %d %d\n", n, s1.a, s1.b,
          l1.a, l1.b, l1.c, l1.d, l1.e,
          s2.a, s2.b);
-  * (int*) resp = 42;
+  * (ffi_arg*) resp = 42;
 }

 int
diff --git a/testsuite/libffi.call/cls_uint_va.c b/testsuite/libffi.call/cls_uint_va.c
index 150fddd..548d8c6 100644
--- a/testsuite/libffi.call/cls_uint_va.c
+++ b/testsuite/libffi.call/cls_uint_va.c
@@ -10,12 +10,13 @@

 typedef unsigned int T;

-static void cls_ret_T_fn(ffi_cif* cif __UNUSED__, void* resp, void** args,
+static void cls_ret_T_fn(ffi_cif* cif __UNUSED__, void *resp, void** args,
                         void* userdata __UNUSED__)
  {
-   *(T *)resp = *(T *)args[0];
+   *(ffi_arg*)resp = *(T *)args[0];

-   printf("%d: %d %d\n", *(T *)resp, *(T *)args[0], *(T *)args[1]);
+
+   printf("%d: %d %d\n", (int)*(ffi_arg *)resp, *(T *)args[0], *(T *)args[1]);
  }

 typedef T (*cls_ret_T)(T, ...);
diff --git a/testsuite/libffi.call/va_1.c b/testsuite/libffi.call/va_1.c
index cf4dd85..7f96809 100644
--- a/testsuite/libffi.call/va_1.c
+++ b/testsuite/libffi.call/va_1.c
@@ -94,7 +94,7 @@ main (void)
   struct large_tag l1;

   int n;
-  int res;
+  ffi_arg res;

   unsigned char uc;
   signed char sc;
diff --git a/testsuite/libffi.call/va_struct1.c b/testsuite/libffi.call/va_struct1.c
index 11d1f10..e645206 100644
--- a/testsuite/libffi.call/va_struct1.c
+++ b/testsuite/libffi.call/va_struct1.c
@@ -61,7 +61,7 @@ main (void)
   struct large_tag l1;

   int n;
-  int res;
+  ffi_arg res;

   s_type.size = 0;
   s_type.alignment = 0;