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GDScript: Add limit to call depth

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The hard limit is set at 2048 depth which seems sensible between
legitimate recursive calls while still avoiding a crash because of a
stack overflow in most of the cases.

Note that it is still possible to reach the stack limit and get an
overflow before reaching a call depth. This is intended as a half-way
measure to stop crashing in most cases, since there's no reliable nor
portable way to check the amount of stack memory left.
This commit is contained in:
George Marques
2023-02-07 17:09:40 -03:00
parent a05670c617
commit 34f0a2ca46
3 changed files with 35 additions and 1 deletions
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2
modules/gdscript/gdscript.cpp
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@@ -2563,7 +2563,7 @@ GDScriptLanguage::GDScriptLanguage() {
script_frame_time = 0;
_debug_call_stack_pos = 0;
int dmcs = GLOBAL_DEF(PropertyInfo(Variant::INT, "debug/settings/gdscript/max_call_stack", PROPERTY_HINT_RANGE, "1024,4096,1,or_greater"), 1024);
int dmcs = GLOBAL_DEF(PropertyInfo(Variant::INT, "debug/settings/gdscript/max_call_stack", PROPERTY_HINT_RANGE, "512," + itos(GDScriptFunction::MAX_CALL_DEPTH - 1) + ",1"), 1024);
if (EngineDebugger::is_active()) {
//debugging enabled!