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Re: [Qemu-devel] [PULL 05/15] translate-all: Fix formatting of dump outp


From: Stefan Weil
Subject: Re: [Qemu-devel] [PULL 05/15] translate-all: Fix formatting of dump output
Date: Tue, 17 Sep 2013 19:59:43 +0200
User-agent: Mozilla/5.0 (X11; Linux i686; rv:17.0) Gecko/20130803 Thunderbird/17.0.8

Am 14.09.2013 21:47, schrieb Michael Tokarev:
> From: Stefan Weil <address@hidden>
>
> The page dump writes a table with 3 abi_ulong values in each row.
> These values take 8 or 16 characters (depending on sizeof abi_ulong).
>
> Fix the table headings to be aligned with the table columns.
>
> old:
> start    end      size     prot
> 0000000120000000-000000012021e000 000000000021e000 rwx
> 0000004000000000-0000004000002000 0000000000002000 ---
> 0000004000002000-0000004000802000 0000000000800000 rw-
>
> new:
> start            end              size             prot
> 0000000120000000-000000012021e000 000000000021e000 rwx
> 0000004000000000-0000004000002000 0000000000002000 ---
> 0000004000002000-0000004000802000 0000000000800000 rw-
>
> Signed-off-by: Stefan Weil <address@hidden>
> Signed-off-by: Michael Tokarev <address@hidden>
> ---
>  translate-all.c |    5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/translate-all.c b/translate-all.c
> index 2c923c6..3b97c66 100644
> --- a/translate-all.c
> +++ b/translate-all.c
> @@ -1679,8 +1679,9 @@ static int dump_region(void *priv, abi_ulong start,
>  /* dump memory mappings */
>  void page_dump(FILE *f)
>  {
> -    (void) fprintf(f, "%-8s %-8s %-8s %s\n",
> -            "start", "end", "size", "prot");
> +    const size_t length = sizeof(abi_ulong) * 2;
> +    (void) fprintf(f, "%-*s %-*s %-*s %s\n",
> +            length, "start", length, "end", length, "size", "prot");
>      walk_memory_regions(f, dump_region);
>  }
>  

Sorry, I just noticed that this patch causes compiler warnings on some
systems:

translate-all.c:1684:13: error: field width specifier ‘*’ expects
argument of type ‘int’, but argument 3 has type ‘size_t’ [-Werror=format]
translate-all.c:1684:13: error: field width specifier ‘*’ expects
argument of type ‘int’, but argument 5 has type ‘size_t’ [-Werror=format]
translate-all.c:1684:13: error: field width specifier ‘*’ expects
argument of type ‘int’, but argument 7 has type ‘size_t’ [-Werror=format]

Changing the type of variable 'length' to int fixes this:

+    const int length = sizeof(abi_ulong) * 2;


Regards,
Stefan




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