Commits on Aug 21, 2024

1. ARRISEOS-45892 limit conservative scan range (#410) …

   * ARRISEOS-45892 limit conservative scan range
   
   Turns out that conservative GC root scanning is
   scanning too deep into the stack & this results
   in GC being prevented (for more details see the
   ticket & upstream issue:
   WebPlatformForEmbedded#1363
   
   This workaround introduces 'stack guards' that prevent
   this in particular cases, that is - if there is gloop
   main loop routine in the stack (see RunLoopGLib), the
   GC root search will not go deeper that this frame. This
   is enough to make GC work when invoked synchronously,
   via VM::shrinkFootprintWhenIdle; therefore for the
   workaround to work, wpe plugin needs to call that
   (another part of the workaround is implemented in
   WebKitBrowser plugin)
   
   * ARRISEOS-45892 limit conservative scan range
   
   Small correction: immediate garbageCollectNow is
   still useful, since under heavy load shrinkFootprintWhenIdle
   might be executed quite late.

   

   tomasz-karczewski-red authored and amol-virnodkar-infosys committed Aug 21, 2024
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