linux-kernel - Re: [PATCH v2] compiler-gcc.h: Disable _

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Message-ID: <87h69t75do.fsf@igel.home>
Date: Thu, 03 Oct 2024 14:11:47 +0200
From: Andreas Schwab <schwab@...ux-m68k.org>
To: Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
Cc: Geert Uytterhoeven <geert@...ux-m68k.org>,  Tony Ambardar
 <tony.ambardar@...il.com>,  Daniel Borkmann <daniel@...earbox.net>,
  Miguel Ojeda <ojeda@...nel.org>,  Jiri Olsa <jolsa@...nel.org>,  Andrew
 Morton <akpm@...ux-foundation.org>,  Arnd Bergmann <arnd@...db.de>,
  linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] compiler-gcc.h: Disable __retain on gcc-11

On Okt 03 2024, Miguel Ojeda wrote:

> Otherwise, does it mean we need a build-time test?

A simple gcc version test definitely does not suffice.

The suport for retain also depends on HAVE_INITFINI_ARRAY_SUPPORT, which
is usually enabled by default (depends on glibc support, but that is
much older), but can be disabled with --disable-initfini-array.

-- 
Andreas Schwab, schwab@...ux-m68k.org
GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510  2552 DF73 E780 A9DA AEC1
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