On Wed, Aug 19, 2020 at 1:02 AM Joshua via Gcc-patches <gcc-patches@gcc.gnu.org> wrote: > * config/riscv/riscv.c (asan_shadow_offset): Implement the offset of > asan shadow memory for risc-v. > (asan_shadow_offset): new macro definition.
When I try the patch, I get asan errors complaining about memory mappings. ==9422==Shadow memory range interleaves with an existing memory mapping. ASan cannot proceed correctly. ABORTING. ==9422==ASan shadow was supposed to be located in the [0x00007fff7000-0x10007fff7fff] range. I haven't gotten it working yet, but I haven't tried debugging it yet either. How exactly are you testing it? It fails for me using a 4.15 kernel on hardware, and on a user mode qemu. I haven't tried booting a 5.x kernel in qemu, that would take some time to set up. Likewise using a 5.x kernel on hardware would take some time to set up. Jim
