tools-support-relr.sh 546 B

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  1. #!/bin/sh -eu
  2. # SPDX-License-Identifier: GPL-2.0
  3. tmp_file=$(mktemp)
  4. trap "rm -f $tmp_file.o $tmp_file $tmp_file.bin" EXIT
  5. cat << "END" | $CC -c -x c - -o $tmp_file.o >/dev/null 2>&1
  6. void *p = &p;
  7. END
  8. $LD $tmp_file.o -shared -Bsymbolic --pack-dyn-relocs=relr \
  9. --use-android-relr-tags -o $tmp_file
  10. # Despite printing an error message, GNU nm still exits with exit code 0 if it
  11. # sees a relr section. So we need to check that nothing is printed to stderr.
  12. test -z "$($NM $tmp_file 2>&1 >/dev/null)"
  13. $OBJCOPY -O binary $tmp_file $tmp_file.bin