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LibJS/Bytecode: Do a stack check when entering run_bytecode()

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If we don't have enough stack space, throw an exception while we still
can, and give the caller a chance to recover.

This particular problem will go away once we make calls non-recursive.
This commit is contained in:
Andreas Kling
2024-05-07 07:50:19 +02:00
parent ebe6ec6069
commit a020a0779d
1 changed files with 5 additions and 0 deletions
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5
Userland/Libraries/LibJS/Bytecode/Interpreter.cpp
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@@ -339,6 +339,11 @@ Interpreter::HandleExceptionResponse Interpreter::handle_exception(size_t& progr
FLATTEN_ON_CLANG void Interpreter::run_bytecode(size_t entry_point) FLATTEN_ON_CLANG void Interpreter::run_bytecode(size_t entry_point)
{ {
if (vm().did_reach_stack_space_limit()) {
reg(Register::exception()) = vm().throw_completion<InternalError>(ErrorType::CallStackSizeExceeded).release_value().value();
return;
}
auto& running_execution_context = vm().running_execution_context(); auto& running_execution_context = vm().running_execution_context();
auto* locals = running_execution_context.locals.data(); auto* locals = running_execution_context.locals.data();
auto& accumulator = this->accumulator(); auto& accumulator = this->accumulator();