Le 27/03/2025 à 17:24, Venkat Rao Bagalkote a écrit :

On 27/03/25 8:36 pm, Madhavan Srinivasan wrote:

quoted

On 3/27/25 7:31 PM, Venkat Rao Bagalkote wrote:

quoted

On 27/03/25 7:22 pm, Madhavan Srinivasan wrote:

quoted

On 3/27/25 12:33 AM, Venkat Rao Bagalkote wrote:

quoted

Greetings!!!

I see below build warnings while compiling mainline kernel on IBM 
Power9 system.

Repo Link: https://eur01.safelinks.protection.outlook.com/? 
url=https%3A%2F%2Fgit.kernel.org%2Fpub%2Fscm%2Flinux%2Fkernel%2Fgit%2Ftorvalds%2Flinux.git%2F&data=05%7C02%7Cchristophe.leroy2%40cs-soprasteria.com%7Cd6121f3814a7497bc5e608dd6d4be6c8%7C8b87af7d86474dc78df45f69a2011bb5%7C0%7C0%7C638786894952762400%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=3el3Uw9JR2vxDzjOIvF%2BVnienBrwtOsA%2Ftg0kGBqziE%3D&reserved=0

Head Commit: f6e0150b2003fb2b9265028a618aa1732b3edc8f

Attached is the .config.

Machine: IBM Power9

gcc version 11.5.0

What is the ld version in your system.

Please find the ld version below.

GNU ld version 2.35.2-59.el9

ah ok that explains. Kindly can you try with this patch and let us 
know whether
this fixes the warning in your setup

diff --git a/arch/powerpc/boot/wrapper b/arch/powerpc/boot/wrapper
index 1db60fe13802..09ceb5a42d81 100755
--- a/arch/powerpc/boot/wrapper
+++ b/arch/powerpc/boot/wrapper

@@ -235,7 +235,7 @@ fi

  # suppress some warnings in recent ld versions
  nowarn="-z noexecstack"
  if ! ld_is_lld; then
-       if [ "$LD_VERSION" -ge "$(echo 2.39 | ld_version)" ]; then
+       if [ "$LD_VERSION" -ge "$(echo 2.35 | ld_version)" ]; then
                 nowarn="$nowarn --no-warn-rwx-segments"
         fi
  fi

Above change fixes the issue. No warnings observed. Thank you!!

Take care, this must be a special version of binutils.

With regular 2.36.1 I get following error:

$ /opt/gcc/gcc-8.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
GNU ld (GNU Binutils) 2.36.1
Copyright (C) 2021 Free Software Foundation, Inc.
This program is free software; you may redistribute it under the terms of
the GNU General Public License version 3 or (at your option) a later 
version.
This program has absolutely no warranty.

$ /opt/gcc/gcc-8.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld 
--no-warn-rwx-segments test.o
/opt/gcc/gcc-8.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld: 
unrecognized option '--no-warn-rwx-segments'
/opt/gcc/gcc-8.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld: use 
the --help option for usage information