tree 8a959cd0c8016978504f1afbb5fb18aed4ccb211
parent 7631bdf0de44e8af6ca0d71df5f4dbf651f7494f
author Lokbondo Kung <lokokung@google.com> 1749197847 -0700
committer Dawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com> 1749197847 -0700

[dawn][emscripten] Convert ptrs to unsigned when using in JS map.

- Some users found that if the linkopts used to build the bindings
  are not the same as the linkopts used in dependencies, we can have
  issues where WASM allocates pointer addresses that have their top
  bit set. When used incorrectly, this results in negative values
  being used to access the map and causes crashes. As a result, we
  force all pointers to be unsigned before looking up or storing
  them into the JS map.

Bug: 422847728
No-Try: true
Change-Id: I6a7028a273f2d0dfec5d399ba535774a66eb67ef
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/245794
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Auto-Submit: Loko Kung <lokokung@google.com>