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From: Mike Frysinger <vapier@gentoo.org>
To: Simon Marchi <simon.marchi@polymtl.ca>
Cc: gdb-patches@sourceware.org
Subject: Re: [PATCH 1/2] sim: move UNUSED before TYPE in SIM_ENDIAN_INLINE's definition
Date: Sat, 19 Jun 2021 22:07:12 -0400	[thread overview]
Message-ID: <YM6i0IXMRMpwyASs@vapier> (raw)
In-Reply-To: <20210620013532.578626-1-simon.marchi@polymtl.ca>

On 19 Jun 2021 21:35, Simon Marchi via Gdb-patches wrote:
> I get this when building with gcc 11:
> 
>       CC       common/common_libcommon_a-sim-load.o
>     In file included from /home/simark/src/binutils-gdb/sim/common/sim-n-bits.h:27,
>                      from /home/simark/src/binutils-gdb/sim/common/sim-bits.c:259,
>                      from /home/simark/src/binutils-gdb/sim/common/sim-bits.h:599,
>                      from /home/simark/src/binutils-gdb/sim/common/sim-basics.h:122,
>                      from /home/simark/src/binutils-gdb/sim/common/sim-load.c:30:
>     /home/simark/src/binutils-gdb/sim/common/sim-n-endian.h:39:27: error: ‘offset_16’ defined but not used [-Werror=unused-function]
>        39 | #define offset_N XCONCAT2(offset_,N)
>           |                           ^~~~~~~
>     /home/simark/src/binutils-gdb/sim/../include/symcat.h:23:26: note: in definition of macro ‘CONCAT2’
>        23 | #define CONCAT2(a,b)     a##b
>           |                          ^
>     /home/simark/src/binutils-gdb/sim/common/sim-n-endian.h:39:18: note: in expansion of macro ‘XCONCAT2’
>        39 | #define offset_N XCONCAT2(offset_,N)
>           |                  ^~~~~~~~
>     /home/simark/src/binutils-gdb/sim/common/sim-n-endian.h:138:1: note: in expansion of macro ‘offset_N’
>       138 | offset_N (unsigned_N *x,
>           | ^~~~~~~~
> 
> offset_N uses INLINE_SIM_ENDIAN, which uses UNUSED to put the "unused"
> attribute.  However, it appears after the function's return type, which
> seems to make it not apply to the function.  Moving it to before the
> return type fixes the error.

idea looks fine, but i'm pretty sure we want to s/TYPE UNUSED/UNUSED TYPE/
on this whole file, not this one macro.
-mike

  parent reply	other threads:[~2021-06-20  2:07 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-20  1:35 Simon Marchi
2021-06-20  1:35 ` [PATCH 2/2] sim: use INLINE2 in STATIC_INLINE's definition Simon Marchi
2021-06-20  2:07 ` Mike Frysinger [this message]
2021-06-20  2:21   ` [PATCH 1/2] sim: move UNUSED before TYPE in SIM_ENDIAN_INLINE's definition Simon Marchi
2021-06-20  2:47     ` Mike Frysinger
2021-06-20  2:50       ` Simon Marchi

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