https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96260
--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Kito Cheng <k...@gcc.gnu.org>: https://gcc.gnu.org/g:2ca1b6d009b194286c3ec91f9c51cc6b0a475458 commit r11-2283-g2ca1b6d009b194286c3ec91f9c51cc6b0a475458 Author: Kito Cheng <kito.ch...@sifive.com> Date: Wed Jul 22 14:50:40 2020 +0800 PR target/96260 - KASAN should work even back-end not porting anything. - Most KASAN function don't need any porting anything in back-end except asan stack protection. - However kernel will given shadow offset when enable asan stack protection, so eveything in KASAN can work if shadow offset is given. - Verified with x86 and risc-v. - Verified with RISC-V linux kernel. gcc/ChangeLog: PR target/96260 * asan.c (asan_shadow_offset_set_p): New. * asan.h (asan_shadow_offset_set_p): Ditto. * toplev.c (process_options): Allow -fsanitize=kernel-address even TARGET_ASAN_SHADOW_OFFSET not implemented, only check when asan stack protection is enabled. gcc/testsuite/ChangeLog: PR target/96260 * gcc.target/riscv/pr91441.c: Update warning message. * gcc.target/riscv/pr96260.c: New.