korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-16 16:54:20 +08:00
Code Issues Packages Projects Releases Wiki Activity

powerpc: suppress some linker warnings in recent linker versions

Browse Source 
This is a follow on from commit

  0d362be5b1 ("Makefile: link with -z noexecstack --no-warn-rwx-segments")

for arch/powerpc/boot to address wanrings like:

  ld: warning: opal-calls.o: missing .note.GNU-stack section implies executable stack
  ld: NOTE: This behaviour is deprecated and will be removed in a future version of the linker
  ld: warning: arch/powerpc/boot/zImage.epapr has a LOAD segment with RWX permissions

This fixes issue https://github.com/linuxppc/issues/issues/417

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20221010165721.106267e6@canb.auug.org.au
This commit is contained in:
Stephen Rothwell 2022-10-10 16:57:21 +11:00 committed by Michael Ellerman
parent 2cb1dfac6f
commit 579aee9fc5
1 changed files with 14 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
arch/powerpc/boot/wrapper
View File

@ -215,6 +215,11 @@ ld_version()
}'
}
ld_is_lld()
{
${CROSS}ld -V 2>&1 | grep -q LLD
}
# Do not include PT_INTERP segment when linking pie. Non-pie linking
# just ignores this option.
LD_VERSION=$(${CROSS}ld --version | ld_version)
@ -223,6 +228,14 @@ if [ "$LD_VERSION" -ge "$LD_NO_DL_MIN_VERSION" ] ; then
nodl="--no-dynamic-linker"
fi
# suppress some warnings in recent ld versions
nowarn="-z noexecstack"
if ! ld_is_lld; then
if [ "$LD_VERSION" -ge "$(echo 2.39 | ld_version)" ]; then
nowarn="$nowarn --no-warn-rwx-segments"
fi
fi
platformo=$object/"$platform".o
lds=$object/zImage.lds
ext=strip
@ -504,7 +517,7 @@ if [ "$platform" != "miboot" ]; then
text_start="-Ttext $link_address"
fi
#link everything
${CROSS}ld -m $format -T $lds $text_start $pie $nodl $rodynamic $notext -o "$ofile" $map \
${CROSS}ld -m $format -T $lds $text_start $pie $nodl $nowarn $rodynamic $notext -o "$ofile" $map \
$platformo $tmp $object/wrapper.a
rm $tmp
fi