scripts/gcc-x86_32-has-stack-protector.sh

   1 #!/bin/sh
   2 # SPDX-License-Identifier: GPL-2.0
   3
   4 # This requires GCC 8.1 or better.  Specifically, we require
   5 # -mstack-protector-guard-reg, added by
   6 # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81708
   7
   8 echo "int foo(void) { char X[200]; return 3; }" | $* -S -x c -m32 -O0 -fstack-protector -mstack-protector-guard-reg=fs -mstack-protector-guard-symbol=__stack_chk_guard - -o - 2> /dev/null | grep -q "%fs"