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build: Restore backwards compatibility with existing containers #904

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merged 1 commit into from
Oct 25, 2021
Merged

build: Restore backwards compatibility with existing containers #904

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21 changes: 19 additions & 2 deletions src/go-build-wrapper
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Original file line number Diff line number Diff line change
Expand Up @@ -34,8 +34,25 @@ if ! interpreter=$(patchelf --print-interpreter "$2/toolbox"); then
exit 1
fi

if ! patchelf --set-interpreter "/run/host$interpreter" "$2/toolbox"; then
echo "go-build-wrapper: failed to change PT_INTERP of $2/toolbox to /run/host$interpreter" >&2
if ! interpreter_canonical=$(readlink --canonicalize "$interpreter"); then
echo "go-build-wrapper: failed to canonicalize PT_INTERP" >&2
exit 1
fi

if ! interpreter_basename=$(basename "$interpreter"); then
echo "go-build-wrapper: failed to read the basename of PT_INTERP" >&2
exit 1
fi

if ! interpreter_canonical_dirname=$(dirname "$interpreter_canonical"); then
echo "go-build-wrapper: failed to read the dirname of the canonicalized PT_INTERP" >&2
exit 1
fi

interpreter="/run/host$interpreter_canonical_dirname/$interpreter_basename"

if ! patchelf --set-interpreter "$interpreter" "$2/toolbox"; then
echo "go-build-wrapper: failed to change PT_INTERP of $2/toolbox to $interpreter" >&2
exit 1
fi

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