https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88022
Bug ID: 88022
Summary: Support dynamic shadow offset in ASan
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: sanitizer
Assignee: unassigned at gcc dot gnu.org
Reporter: chefmax at gcc dot gnu.org
CC: dodji at gcc dot gnu.org, dvyukov at gcc dot gnu.org,
jakub at gcc dot gnu.org, kcc at gcc dot gnu.org, marxin at
gcc dot gnu.org
Target Milestone: ---
This is a possible feature for GCC 10.
The possibility of setting ASan shadow offset dynamically is discussed many
times and recent libsanitizer already supports it for Android and Windows.
Although Linux is not supported yet, it seems that code for Android can be
reused quite easily.
Mainly, we'll need to tweak ifdefs in libsanitizer and add support on compiler
side (which won't be hard).
Preliminary performance numbers can be obtained from here:
https://github.com/google/sanitizers/issues/837
