Fix testcases using __attribute__((noclone)) with Clang

Clang fails to compile a number of files with the following warning:
unknown attribute 'noclone' ignored [-Wunknown-attributes].  This
commit adds a new header, lib/noclone.h, which defines the macro
ATTRIBUTE_NOCLONE accordingly, and updates the relevant testcases
to use it.

gdb/testsuite/ChangeLog:

	* lib/attributes.h: New header.
	* gdb.base/backtrace.c: Include the above. Replace
	__attribute__(noclone)) with ATTRIBUTE_NOCLONE.
	* gdb.base/infcall-nested-structs.c: Likewise.
	* gdb.base/vla-optimized-out.c: Likewise.

1 files changed, 33 insertions, 32 deletions

diff --git a/gdb/testsuite/gdb.base/infcall-nested-structs.c b/gdb/testsuite/gdb.base/infcall-nested-structs.c
index c0c8e19..ee347d4 100644
--- a/gdb/testsuite/gdb.base/infcall-nested-structs.c
+++ b/gdb/testsuite/gdb.base/infcall-nested-structs.c
@@ -33,6 +33,7 @@
    in the structs.exp test script.  */
 
 #include <string.h>
+#include "../lib/attributes.h"
 
 /* Useful abreviations.  */
 typedef char tc;
@@ -51,13 +52,13 @@ typedef long double _Complex tldc;
 #endif /* TEST_COMPLEX */
 
 #define MAKE_CHECK_FUNCS(TYPE)					\
-  int __attribute__((noinline,noclone))				\
+  int __attribute__((noinline)) ATTRIBUTE_NOCLONE		\
   check_arg_ ## TYPE (struct TYPE arg)				\
   {								\
     return cmp_ ## TYPE (arg, ref_val_ ## TYPE);		\
   }								\
 								\
-  struct TYPE __attribute__((noinline,noclone))			\
+  struct TYPE __attribute__((noinline)) ATTRIBUTE_NOCLONE	\
   rtn_str_ ## TYPE (void)					\
   {								\
     return (ref_val_ ## TYPE);					\
@@ -128,141 +129,141 @@ struct struct_static_06_04 { ES(es1); ES(es2); static tA a; ES(es3); static tB b
 
 #endif
 
-int __attribute__((noinline,noclone))
+int __attribute__((noinline)) ATTRIBUTE_NOCLONE
 cmp_struct_01_01 (struct struct_01_01 a, struct struct_01_01 b)
 { return a.s2.s1.a == b.s2.s1.a; }
 
-int __attribute__((noinline,noclone))
+int __attribute__((noinline)) ATTRIBUTE_NOCLONE
 cmp_struct_01_02 (struct struct_01_02 a, struct struct_01_02 b)
 { return a.a == b.a; }
 
-int __attribute__((noinline,noclone))
+int __attribute__((noinline)) ATTRIBUTE_NOCLONE
 cmp_struct_01_03 (struct struct_01_03 a, struct struct_01_03 b)
 { return a.s4.s3.a == b.s4.s3.a; }
 
-int __attribute__((noinline,noclone))
+int __attribute__((noinline)) ATTRIBUTE_NOCLONE
 cmp_struct_01_04 (struct struct_01_04 a, struct struct_01_04 b)
 { return a.a == b.a; }
 
-int __attribute__((noinline,noclone))
+int __attribute__((noinline)) ATTRIBUTE_NOCLONE
 cmp_struct_02_01 (struct struct_02_01 a, struct struct_02_01 b)
 { return a.s2.s1.a == b.s2.s1.a && a.s2.s1.b == b.s2.s1.b; }
 
-int __attribute__((noinline,noclone))
+int __attribute__((noinline)) ATTRIBUTE_NOCLONE
 cmp_struct_02_02 (struct struct_02_02 a, struct struct_02_02 b)
 { return a.a == b.a && a.b == b.b; }
 
-int __attribute__((noinline,noclone))
+int __attribute__((noinline)) ATTRIBUTE_NOCLONE
 cmp_struct_02_03 (struct struct_02_03 a, struct struct_02_03 b)
 { return a.s4.s3.a == b.s4.s3.a && a.s6.s5.b == b.s6.s5.b; }
 
-int __attribute__((noinline,noclone))
+int __attribute__((noinline)) ATTRIBUTE_NOCLONE
 cmp_struct_02_04 (struct struct_02_04 a, struct struct_02_04 b)
 { return a.a == b.a && a.b == b.b; }
 
-int __attribute__((noinline,noclone))
+int __attribute__((noinline)) ATTRIBUTE_NOCLONE
 cmp_struct_04_01 (struct struct_04_01 a, struct struct_04_01 b)
 { return a.s2.s1.a == b.s2.s1.a && a.s2.s1.b == b.s2.s1.b
 	 && a.s2.s1.c == b.s2.s1.c && a.s2.s1.d == b.s2.s1.d; }
 
-int __attribute__((noinline,noclone))
+int __attribute__((noinline)) ATTRIBUTE_NOCLONE
 cmp_struct_04_02 (struct struct_04_02 a, struct struct_04_02 b)
 { return a.a == b.a && a.b == b.b && a.c == b.c && a.d == b.d; }
 
-int __attribute__((noinline,noclone))
+int __attribute__((noinline)) ATTRIBUTE_NOCLONE
 cmp_struct_04_03 (struct struct_04_03 a, struct struct_04_03 b)
 { return a.s4.s3.a == b.s4.s3.a && a.s6.s5.b == b.s6.s5.b
 	 && a.s8.s7.c == b.s8.s7.c && a.s10.s9.d == b.s10.s9.d; }
 
-int __attribute__((noinline,noclone))
+int __attribute__((noinline)) ATTRIBUTE_NOCLONE
 cmp_struct_04_04 (struct struct_04_04 a, struct struct_04_04 b)
 { return a.a == b.a && a.b == b.b && a.c == b.c && a.d == b.d; }
 
-int __attribute__((noinline,noclone))
+int __attribute__((noinline)) ATTRIBUTE_NOCLONE
 cmp_struct_05_01 (struct struct_05_01 a, struct struct_05_01 b)
 { return a.s2.s1.a == b.s2.s1.a && a.s2.s1.b == b.s2.s1.b
 	 && a.s2.s1.c == b.s2.s1.c && a.s2.s1.d == b.s2.s1.d
 	 && a.s2.s1.e == b.s2.s1.e; }
 
-int __attribute__((noinline,noclone))
+int __attribute__((noinline)) ATTRIBUTE_NOCLONE
 cmp_struct_05_02 (struct struct_05_02 a, struct struct_05_02 b)
 { return a.a == b.a && a.b == b.b && a.c == b.c && a.d == b.d && a.e == b.e; }
 
-int __attribute__((noinline,noclone))
+int __attribute__((noinline)) ATTRIBUTE_NOCLONE
 cmp_struct_05_03 (struct struct_05_03 a, struct struct_05_03 b)
 { return a.s4.s3.a == b.s4.s3.a && a.s6.s5.b == b.s6.s5.b
 	 && a.s8.s7.c == b.s8.s7.c && a.s10.s9.d == b.s10.s9.d
 	 && a.s12.s11.e == b.s12.s11.e; }
 
-int __attribute__((noinline,noclone))
+int __attribute__((noinline)) ATTRIBUTE_NOCLONE
 cmp_struct_05_04 (struct struct_05_04 a, struct struct_05_04 b)
 { return a.a == b.a && a.b == b.b && a.c == b.c && a.d == b.d && a.e == b.e; }
 
 #ifdef __cplusplus
 
-int __attribute__((noinline,noclone))
+int __attribute__((noinline)) ATTRIBUTE_NOCLONE
 cmp_struct_static_02_01 (struct struct_static_02_01 a,
 			 struct struct_static_02_01 b)
 { return a.s2.s1.a == b.s2.s1.a && a.s2.s1.b == b.s2.s1.b; }
 
-int __attribute__((noinline,noclone))
+int __attribute__((noinline)) ATTRIBUTE_NOCLONE
 cmp_struct_static_02_02 (struct struct_static_02_02 a,
 			 struct struct_static_02_02 b)
 { return a.a == b.a && a.b == b.b; }
 
-int __attribute__((noinline,noclone))
+int __attribute__((noinline)) ATTRIBUTE_NOCLONE
 cmp_struct_static_02_03 (struct struct_static_02_03 a,
 			 struct struct_static_02_03 b)
 { return a.s4.s3.a == b.s4.s3.a && a.s6.s5.b == b.s6.s5.b; }
 
-int __attribute__((noinline,noclone))
+int __attribute__((noinline)) ATTRIBUTE_NOCLONE
 cmp_struct_static_02_04 (struct struct_static_02_04 a,
 			     struct struct_static_02_04 b)
 { return a.a == b.a && a.b == b.b; }
 
-int __attribute__((noinline,noclone))
+int __attribute__((noinline)) ATTRIBUTE_NOCLONE
 cmp_struct_static_04_01 (struct struct_static_04_01 a,
 			 struct struct_static_04_01 b)
 { return a.s2.s1.a == b.s2.s1.a && a.s2.s1.b == b.s2.s1.b
 	 && a.s2.s1.c == b.s2.s1.c && a.s2.s1.d == b.s2.s1.d; }
 
-int __attribute__((noinline,noclone))
+int __attribute__((noinline)) ATTRIBUTE_NOCLONE
 cmp_struct_static_04_02 (struct struct_static_04_02 a,
 			 struct struct_static_04_02 b)
 { return a.a == b.a && a.b == b.b && a.c == b.c && a.d == b.d; }
 
-int __attribute__((noinline,noclone))
+int __attribute__((noinline)) ATTRIBUTE_NOCLONE
 cmp_struct_static_04_03 (struct struct_static_04_03 a,
 			 struct struct_static_04_03 b)
 { return a.s4.s3.a == b.s4.s3.a && a.s6.s5.b == b.s6.s5.b
 	 && a.s8.s7.c == b.s8.s7.c && a.s10.s9.d == b.s10.s9.d; }
 
-int __attribute__((noinline,noclone))
+int __attribute__((noinline)) ATTRIBUTE_NOCLONE
 cmp_struct_static_04_04 (struct struct_static_04_04 a,
 			 struct struct_static_04_04 b)
 { return a.a == b.a && a.b == b.b && a.c == b.c && a.d == b.d; }
 
-int __attribute__((noinline,noclone))
+int __attribute__((noinline)) ATTRIBUTE_NOCLONE
 cmp_struct_static_06_01 (struct struct_static_06_01 a,
 			 struct struct_static_06_01 b)
 { return a.s2.s1.a == b.s2.s1.a && a.s2.s1.b == b.s2.s1.b
 	 && a.s2.s1.c == b.s2.s1.c && a.s2.s1.d == b.s2.s1.d
 	 && a.s2.s1.e == b.s2.s1.e && a.f == b.f; }
 
-int __attribute__((noinline,noclone))
+int __attribute__((noinline)) ATTRIBUTE_NOCLONE
 cmp_struct_static_06_02 (struct struct_static_06_02 a,
 			 struct struct_static_06_02 b)
 { return a.a == b.a && a.b == b.b && a.c == b.c && a.d == b.d && a.e == b.e
 	 && a.f == b.f; }
 
-int __attribute__((noinline,noclone))
+int __attribute__((noinline)) ATTRIBUTE_NOCLONE
 cmp_struct_static_06_03 (struct struct_static_06_03 a,
 			 struct struct_static_06_03 b)
 { return a.s4.s3.a == b.s4.s3.a && a.s6.s5.b == b.s6.s5.b
 	 && a.s8.s7.c == b.s8.s7.c && a.s10.s9.d == b.s10.s9.d
 	 && a.s12.s11.e == b.s12.s11.e && a.s12.s11.f == b.s12.s11.f; }
 
-int __attribute__((noinline,noclone))
+int __attribute__((noinline)) ATTRIBUTE_NOCLONE
 cmp_struct_static_06_04 (struct struct_static_06_04 a,
 			 struct struct_static_06_04 b)
 { return a.a == b.a && a.b == b.b && a.c == b.c && a.d == b.d && a.e == b.e
@@ -366,7 +367,7 @@ MAKE_CHECK_FUNCS(struct_static_06_04)
 
 #define CALL_LINE(NAME) val += check_arg_ ## NAME (rtn_str_ ## NAME ())
 
-int __attribute__((noinline,noclone))
+int __attribute__((noinline)) ATTRIBUTE_NOCLONE
 call_all ()
 {
   int val = 0;
@@ -407,7 +408,7 @@ call_all ()
 
 int volatile v = 1;
 
-void __attribute__((noinline, noclone))
+void __attribute__((noinline)) ATTRIBUTE_NOCLONE
 breakpt (void)
 {
   v++;