Merge pull request #129 from WebAssembly/tooling-sanitizers

Sanitizers: mention trapping and shadow stack.

1 files changed, 5 insertions, 2 deletions

diff --git a/Tooling.md b/Tooling.md
index 330a7f1..015756f 100644
--- a/Tooling.md
+++ b/Tooling.md
@@ -32,12 +32,15 @@ The tooling we expect to support includes:
     programs, inspecting their state, modifying their state.
   - Debug information is better delivered on-demand instead of built-in to a
     WebAssembly module.
-* Sanitizers for non-memory-safe languages: asan, tsan, msan, ubsan.
+* Sanitizers for non-memory-safe languages: asan, tsan, msan, ubsan. Efficient
+  support of sanitizers may require inproving:
+  - Trapping support;
+  - Shadow stack techniques (often implemented through `mmap`'s `MAP_FIXED`).
 * Opt-in security enhancements for developers' own code: developers targeting
   WebAssembly may want their own code to be sandboxed further than what
   WebAssembly implementations require to protect users.
 * Profilers:
-  - Sample-based.
+  - Sample-based;
   - Instrumentation-based.
 * Process dump: local variables, call stack, heap, global variables, list of
   threads.