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Date: Tue, 15 Jan 2013 20:10:47 +0100
From: magnum <john.magnum@...hmail.com>
To: john-dev@...ts.openwall.com
Subject: Re: New compiler warnings (was: charset.c warnings)
On 24 Dec, 2012, at 21:01 , Solar Designer <solar@...nwall.com> wrote:
> On Mon, Dec 24, 2012 at 02:48:30AM +0100, Lukas Odzioba wrote:
>> charset.c: In function ?charset_generate_chars?:
>> charset.c:180:8: warning: ignoring return value of ?fwrite?, declared
>> with attribute warn_unused_result
>
> Yeah, I expected that we'd start getting these eventually. First they
> added warnings for fread(), now also for fwrite().
We also get these with gcc-4.7:
DES_bs.c:310:25: warning: always_inline function might not be inlinable [-Wattributes]
MD5_std.c:587:24: warning: always_inline function might not be inlinable [-Wattributes]
trip_fmt.c:341:26: warning: always_inline function might not be inlinable [-Wattributes]
trip_fmt.c:294:26: warning: always_inline function might not be inlinable [-Wattributes]
dynamic_fmt.c: In function 'cmp_all':
dynamic_fmt.c:1311:4: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
dynamic_fmt.c: In function 'cmp_all_64_4x6':
dynamic_fmt.c:1350:4: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
wpapsk_fmt.c:68:26: warning: always_inline function might not be inlinable [-Wattributes]
In file included from wpapsk_fmt.c:15:0:
wpapsk.h:180:26: warning: always_inline function might not be inlinable [-Wattributes]
lotus5_fmt_plug.c:176:19: warning: always_inline function might not be inlinable [-Wattributes]
lotus5_fmt_plug.c:159:1: warning: always_inline function might not be inlinable [-Wattributes]
pkzip_fmt_plug.c:1141:12: warning: always_inline function might not be inlinable [-Wattributes]
pkzip_fmt_plug.c:1054:12: warning: always_inline function might not be inlinable [-Wattributes]
Adding -Wno-attributes obviously works fine but would that mute things we'd like to see? Here's the man page on that:
Do not warn if an unexpected "__attribute__" is used, such as
unrecognized attributes, function attributes applied to variables,
etc. This will not stop errors for incorrect use of supported
attributes.
Anway, I'll fix the dynamic warnings.
magnum
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