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From: Florian Weimer <fweimer@redhat.com>
To: gcc@gcc.gnu.org
Cc: gnu@amylaar.uk, claziss@synopsys.com
Subject: GCC arc port defaults to -fcommon
Date: Wed, 07 Jul 2021 10:59:16 +0200	[thread overview]
Message-ID: <875yxmbiu3.fsf@oldenburg.str.redhat.com> (raw)

It seems to me that the arc port still defaults to -fcommon, presumably
due to this in gcc/common/config/arc/arc-common.c:

static void
arc_option_init_struct (struct gcc_options *opts)
{
  opts->x_flag_no_common = 255; /* Mark as not user-initialized.  */

  /* Which cpu we're compiling for (ARC600, ARC601, ARC700, ARCv2).  */
  arc_cpu = PROCESSOR_NONE;
}

Is that really necessary?  Is -fno-common broken on arc?

I plan to switch glibc to build with -fno-common unconditionally, for
all GCC versions and architectures, and I wonder if that would be a
blocker.

Thanks,
Florian


             reply	other threads:[~2021-07-07  8:59 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-07  8:59 Florian Weimer [this message]
2021-07-07  9:56 ` Richard Biener
2021-07-07  9:58   ` Richard Biener
2021-07-07 10:06     ` Florian Weimer
2021-07-07 12:18       ` Claudiu Zissulescu
2021-07-07 10:06     ` Claudiu Zissulescu

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