[LTP] [PATCH v5 2/3] Print prot flag when SAFE_MMAP() fails

[Cyril Hrubis]

Hi!
>  include/tst_safe_macros.h | 10 ++++++++--
>  1 file changed, 8 insertions(+), 2 deletions(-)
> 
> diff --git a/include/tst_safe_macros.h b/include/tst_safe_macros.h
> index 15f914619..63ad46b85 100644
> --- a/include/tst_safe_macros.h
> +++ b/include/tst_safe_macros.h
> @@ -304,12 +304,18 @@ static inline void *safe_mmap(const char *file, const int lineno,
>                                int prot, int flags, int fd, off_t offset)
>  {
>  	void *rval;
> +	char *prot_buf;

Shouldn't we add the TDEBUG message here?

>  	rval = mmap(addr, length, prot, flags, fd, offset);
>  	if (rval == MAP_FAILED) {
> +		prot_buf = (char*) safe_malloc(file, lineno, 0, 512);
> +		prot_to_str(prot, prot_buf);
> +
>  		tst_brk_(file, lineno, TBROK | TERRNO,
> -			"mmap(%p,%zu,%d,%d,%d,%ld) failed",
> -			addr, length, prot, flags, fd, (long) offset);
> +			"mmap(%p,%zu,%s(%x),%d,%d,%ld) failed",
> +			addr, length, prot_buf, prot, flags, fd, (long) offset);
> +
> +		free(prot_buf);

This is fine as long as we switch to an on the stack array.

>  	}
>  
>  	return rval;
> -- 
> 2.35.3
> 
> 
> -- 
> Mailing list info: https://lists.linux.it/listinfo/ltp

-- 
Cyril Hrubis
chrubis@suse.cz