[PATCH,v2] [AArch64] Fix testcase compilation failure

[Luis Machado]

On 7/11/22 12:58, Luis Machado via Gdb-patches wrote:
> v2:
> 
> - Removed unused constants
> 
> --
> 
> Newer distros carry newer headers that contains MTE definitions.  Account
> for that fact in the MTE testcases and define constants conditionally to
> prevent compilation failures.
> ---
>   gdb/testsuite/gdb.arch/aarch64-mte.c | 15 ++++++++++-----
>   1 file changed, 10 insertions(+), 5 deletions(-)
> 
> diff --git a/gdb/testsuite/gdb.arch/aarch64-mte.c b/gdb/testsuite/gdb.arch/aarch64-mte.c
> index bd7f1a6cf53..fc38d58fe5e 100644
> --- a/gdb/testsuite/gdb.arch/aarch64-mte.c
> +++ b/gdb/testsuite/gdb.arch/aarch64-mte.c
> @@ -30,22 +30,27 @@
>   #include <sys/prctl.h>
>   
>   /* From arch/arm64/include/uapi/asm/hwcap.h */
> +#ifndef HWCAP2_MTE
>   #define HWCAP2_MTE              (1 << 18)
> +#endif
>   
>   /* From arch/arm64/include/uapi/asm/mman.h */
> +#ifndef PROT_MTE
>   #define PROT_MTE  0x20
> +#endif
>   
> -/* From include/uapi/linux/prctl.h */
> +#ifndef PR_SET_TAGGED_ADDR_CTRL
>   #define PR_SET_TAGGED_ADDR_CTRL 55
> -#define PR_GET_TAGGED_ADDR_CTRL 56
>   #define PR_TAGGED_ADDR_ENABLE	(1UL << 0)
> +#endif
> +
> +/* From include/uapi/linux/prctl.h */
> +#ifndef PR_MTE_TCF_SHIFT
>   #define PR_MTE_TCF_SHIFT	1
> -#define PR_MTE_TCF_NONE		(0UL << PR_MTE_TCF_SHIFT)
>   #define PR_MTE_TCF_SYNC		(1UL << PR_MTE_TCF_SHIFT)
>   #define PR_MTE_TCF_ASYNC	(2UL << PR_MTE_TCF_SHIFT)
> -#define PR_MTE_TCF_MASK		(3UL << PR_MTE_TCF_SHIFT)
>   #define PR_MTE_TAG_SHIFT	3
> -#define PR_MTE_TAG_MASK		(0xffffUL << PR_MTE_TAG_SHIFT)
> +#endif
>   
>   void
>   access_memory (unsigned char *tagged_ptr, unsigned char *untagged_ptr)

Pushed now.