#!/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>&1 | |
void *p = &p; | |
END | |
$LD $tmp_file.o -shared -Bsymbolic --pack-dyn-relocs=relr \ | |
--use-android-relr-tags -o $tmp_file | |
# Despite printing an error message, GNU nm still exits with exit code 0 if it | |
# sees a relr section. So we need to check that nothing is printed to stderr. | |
test -z "$($NM $tmp_file 2>&1 >/dev/null)" | |
$OBJCOPY -O binary $tmp_file $tmp_file.bin |