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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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12345678910111213141516171819202122#!/bin/sh -eu# SPDX-License-Identifier: GPL-2.0
tmp_file=$(mktemp)trap "rm -f $tmp_file.o $tmp_file $tmp_file.bin" EXIT
cat << "END" | $CC -c -x c - -o $tmp_file.o >/dev/null 2>&1void *p = &p;END
# ld.lld before 15 did not support -z pack-relative-relocs.if ! $LD $tmp_file.o -shared -Bsymbolic --pack-dyn-relocs=relr -o $tmp_file 2>/dev/null; then $LD $tmp_file.o -shared -Bsymbolic -z pack-relative-relocs -o $tmp_file 2>&1 | grep -q pack-relative-relocs && exit 1fi
# Despite printing an error message, GNU nm still exits with exit code 0 if it# sees a relr section. So we need to check that nothing is printed to stderr.test -z "$($NM $tmp_file 2>&1 >/dev/null)"
$OBJCOPY -O binary $tmp_file $tmp_file.bin