>
> How did the issue present itself before you enabled UBSAN? (Are you sure
> its the same issue?)
It's pretty much the same:
RuntimeError: memory access out of bounds
at
std::__2::pair<std::__2::__hash_iterator<std::__2::__hash_node<antlr4::dfa::DFAState*,
void*>*>, bool> std::__2::__hash_table<antlr4::dfa::DFAState*,
antlr4::dfa::DFA::DFAStateHasher, antlr4::dfa::DFA::DFAStateComparer,
std::__2::allocator<antlr4::dfa::DFAState*>>::__emplace_unique_key_args<antlr4::dfa::DFAState*,
antlr4::dfa::DFAState* const&>(antlr4::dfa::DFAState* const&,
antlr4::dfa::DFAState* const&)
(wasm://wasm/06ddd9e2:wasm-function[16499]:0x222e01)
at std::__2::__hash_table<antlr4::dfa::DFAState*,
antlr4::dfa::DFA::DFAStateHasher, antlr4::dfa::DFA::DFAStateComparer,
std::__2::allocator<antlr4::dfa::DFAState*>>::__insert_unique[abi:v160004](antlr4::dfa::DFAState*
const&) (wasm://wasm/06ddd9e2:wasm-function[16371]:0x21f157)
at std::__2::unordered_set<antlr4::dfa::DFAState*,
antlr4::dfa::DFA::DFAStateHasher, antlr4::dfa::DFA::DFAStateComparer,
std::__2::allocator<antlr4::dfa::DFAState*>>::insert[abi:v160004](antlr4::dfa::DFAState*
const&) (wasm://wasm/06ddd9e2:wasm-function[16366]:0x21ef8f)
at antlr4::atn::LexerATNSimulator::addDFAState(antlr4::atn::ATNConfigSet*,
bool) (wasm://wasm/06ddd9e2:wasm-function[16363]:0x21ec90)
at antlr4::atn::LexerATNSimulator::matchATN(antlr4::CharStream*)
(wasm://wasm/06ddd9e2:wasm-function[16290]:0x218e8a)
at antlr4::atn::LexerATNSimulator::match(antlr4::CharStream*, unsigned
long) (wasm://wasm/06ddd9e2:wasm-function[16275]:0x2183e1)
at antlr4::Lexer::nextToken()
(wasm://wasm/06ddd9e2:wasm-function[12053]:0x17b1bf)
at embind_init_main()::$_6::operator()(LexerHelper&) const
(wasm://wasm/06ddd9e2:wasm-function[3619]:0xa43d3)
at embind_init_main()::$_6::__invoke(LexerHelper&)
(wasm://wasm/06ddd9e2:wasm-function[3618]:0xa4362)
at
emscripten::internal::FunctionInvoker<std::__2::unique_ptr<antlr4::Token,
std::__2::default_delete<antlr4::Token>> (*)(LexerHelper&),
std::__2::unique_ptr<antlr4::Token, std::__2::default_delete<antlr4::Token>>,
LexerHelper&>::invoke(std::__2::unique_ptr<antlr4::Token,
std::__2::default_delete<antlr4::Token>> (**)(LexerHelper&), LexerHelper*)
(wasm://wasm/06ddd9e2:wasm-function[3611]:0xa4111)
>
> Is there some way you could make/share a minimal repro case?
I can try, but what I'd really need is a way to debug the C++ code. Otherwise
it becomes a pretty frustrating trial and error experience, which costs a lot
of time.
>
> cheers,
> sam
Thanks for trying to help Sam!
Mike
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