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- #!/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.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 $tmp_file 2>&1 |
- grep -q pack-relative-relocs && exit 1
- fi
- # Despite printing an error message, GNU nm still exits with exit code 0 if it
- # sees a relr section. So we need to check that nothing is printed to stderr.
- test -z "$($NM $tmp_file 2>&1 >/dev/null)"
- $OBJCOPY -O binary $tmp_file $tmp_file.bin
|
