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

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Message-ID: <878qv5739u.fsf@igel.home>
Date: Thu, 03 Oct 2024 14:57:17 +0200
From: Andreas Schwab <schwab@...ux-m68k.org>
To: Geert Uytterhoeven <geert@...ux-m68k.org>
Cc: Miguel Ojeda <miguel.ojeda.sandonis@...il.com>,  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, Geert Uytterhoeven wrote:

> Hi Andreas,
>
> On Thu, Oct 3, 2024 at 2:34 PM Andreas Schwab <schwab@...ux-m68k.org> wrote:
>> On Okt 03 2024, Geert Uytterhoeven wrote:
>> > On Thu, Oct 3, 2024 at 2:11 PM Andreas Schwab <schwab@...ux-m68k.org> wrote:
>> >> 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.
>> >
>> > FTR, no --disable-initfini-array seen here:
>>
>> --disable-initfini-array is the default for cross compilers.
>
> Apparently not for cross compilers targeting riscv64?

Yes, targets in the aarch64 era or newer enable initfini_array by
default.  Also, gcc 12+ generally defaults to --enable-initfini-array on
Linux as well.

-- 
Andreas Schwab, schwab@...ux-m68k.org
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