[LTP] [PATCH V2] getrlimit03: adjust a bit of code to compatiable with mips32

[Jan Stancek <jstancek@redhat.com>]

----- Original Message -----
> Error info:
> getrlimit03.c:104: FAIL: __NR_prlimit64(0) had rlim_cur =
> ffffffffffffffff but __NR_getrlimit(0) had rlim_cur = 7fffffff
> 
> According to kernel code: [arch/mips/include/uapi/asm/resource.h]
> RLIM_INFINITY is set to 0x7fffffffUL instead of ULONG_MAX on mips32.
> 
> /*
>  * SuS says limits have to be unsigned.
>  * Which makes a ton more sense anyway,
>  * but we keep the old value on MIPS32,
>  * for compatibility:
>  */
> #ifndef __mips64
> # define RLIM_INFINITY      0x7fffffffUL
> #endif
> 
> Adding conditional statement about mips to fix this.
> 
> Signed-off-by: Hongzhi.Song <hongzhi.song@windriver.com>
> ---
>  testcases/kernel/syscalls/getrlimit/getrlimit03.c | 10 ++++++++--
>  1 file changed, 8 insertions(+), 2 deletions(-)
> 
> diff --git a/testcases/kernel/syscalls/getrlimit/getrlimit03.c
> b/testcases/kernel/syscalls/getrlimit/getrlimit03.c
> index e4d56c4..1903558 100644
> --- a/testcases/kernel/syscalls/getrlimit/getrlimit03.c
> +++ b/testcases/kernel/syscalls/getrlimit/getrlimit03.c
> @@ -61,7 +61,13 @@ struct rlimit_ulong {
>  	unsigned long rlim_cur;
>  	unsigned long rlim_max;
>  };
> +#ifdef __mips
> +#ifndef __mips64
> +const unsigned long RLIM_INFINITY_UL = 0x7fffffffUL;
> +#else
>  const unsigned long RLIM_INFINITY_UL = ULONG_MAX;
> +#endif
> +#endif

Hi,

This will break every other arch, because it's now undefined everywhere except mips.

>  
>  static int getrlimit_ulong(int resource, struct rlimit_ulong *rlim)
>  {
> @@ -101,8 +107,8 @@ static int compare_u64_ulong(int resource, uint64_t
> val_u64,
>  {
>  	if ((val_u64 > RLIM_INFINITY_UL && val_ul != RLIM_INFINITY_UL) ||
>  	    (val_u64 <= RLIM_INFINITY_UL && val_ul != val_u64)) {
> -		tst_res(TFAIL, "__NR_prlimit64(%d) had %s = %" PRIx64 " but "
> __NR_getrlimit_ulong_str "(%d) had %s = %lx",
> -			resource, kind, val_u64,
> +		tst_res(TFAIL, "SIGNED_GETRLIMIT = %d __WORDSIZE %d ULONG_MAX = %lu
> RLIM_INFINITY_UL = %lu __NR_prlimit64(%d) had %s = %" PRIx64 " but "
> __NR_getrlimit_ulong_str "(%d) had %s = %lx",
> +			SIGNED_GETRLIMIT, __WORDSIZE, ULONG_MAX, RLIM_INFINITY_UL, resource,

I suggest to split it into another tst_res() message, line above is nearly 200 characters.

Regards,
Jan

> kind, val_u64,
>  			resource, kind, val_ul);
>  		return -1;
>  	}
> --
> 2.8.1
> 
> 
> --
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>