64 lines
2.0 KiB
Diff
64 lines
2.0 KiB
Diff
From 579aee9fc594af94c242068c011b0233563d4bbf Mon Sep 17 00:00:00 2001
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From: Stephen Rothwell <sfr@canb.auug.org.au>
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Date: Mon, 10 Oct 2022 16:57:21 +1100
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Subject: [PATCH] powerpc: suppress some linker warnings in recent linker
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versions
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This is a follow on from commit
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0d362be5b142 ("Makefile: link with -z noexecstack --no-warn-rwx-segments")
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for arch/powerpc/boot to address wanrings like:
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ld: warning: opal-calls.o: missing .note.GNU-stack section implies executable stack
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ld: NOTE: This behaviour is deprecated and will be removed in a future version of the linker
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ld: warning: arch/powerpc/boot/zImage.epapr has a LOAD segment with RWX permissions
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This fixes issue https://github.com/linuxppc/issues/issues/417
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Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
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Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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Link: https://lore.kernel.org/r/20221010165721.106267e6@canb.auug.org.au
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---
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arch/powerpc/boot/wrapper | 15 ++++++++++++++-
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1 file changed, 14 insertions(+), 1 deletion(-)
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--- a/arch/powerpc/boot/wrapper
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+++ b/arch/powerpc/boot/wrapper
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@@ -215,6 +215,11 @@ ld_version()
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}'
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}
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+ld_is_lld()
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+{
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+ ${CROSS}ld -V 2>&1 | grep -q LLD
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+}
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+
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# Do not include PT_INTERP segment when linking pie. Non-pie linking
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# just ignores this option.
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LD_VERSION=$(${CROSS}ld --version | ld_version)
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@@ -223,6 +228,14 @@ if [ "$LD_VERSION" -ge "$LD_NO_DL_MIN_VE
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nodl="--no-dynamic-linker"
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fi
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+# suppress some warnings in recent ld versions
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+nowarn="-z noexecstack"
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+if ! ld_is_lld; then
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+ if [ "$LD_VERSION" -ge "$(echo 2.39 | ld_version)" ]; then
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+ nowarn="$nowarn --no-warn-rwx-segments"
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+ fi
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+fi
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+
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platformo=$object/"$platform".o
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lds=$object/zImage.lds
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ext=strip
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@@ -504,7 +517,7 @@ if [ "$platform" != "miboot" ]; then
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text_start="-Ttext $link_address"
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fi
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#link everything
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- ${CROSS}ld -m $format -T $lds $text_start $pie $nodl $rodynamic $notext -o "$ofile" $map \
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+ ${CROSS}ld -m $format -T $lds $text_start $pie $nodl $nowarn $rodynamic $notext -o "$ofile" $map \
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$platformo $tmp $object/wrapper.a
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rm $tmp
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fi
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