emscripten-core/emscripten

Module.instantiateWasm callback failed with error: ReferenceError: resetPrototype is not defined, when using pthreads+MODULARIZE+sanitizers

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#12,865 opened on Nov 23, 2020

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Description

When simple C++ source code is compiled with sanitize and pthreads flags, following error occurs at runtime.

Module.instantiateWasm callback failed with error: ReferenceError: resetPrototype is not defined emcc_pthread_and_sanitize_error

PFA test case WebAssembly.zip to reproduce the above issue. Issue is reproducible on Emscripten version 2.0.7. To compile the test.cc, following command is used. em++ -fsanitize=address -sINITIAL_MEMORY=536870912 -sUSE_PTHREADS=1 -sPTHREAD_POOL_SIZE=1 -sMODULARIZE=1 -sEXPORT_NAME="testWasmModuleReady" --bind --no-entry test.cc -o test.js

Note that, issue is not reproducible if sanitize flag is removed from the compilation.

Contributor guide

Research direction
Inspect the generated JavaScript for references to resetPrototype and trace how it should be defined in the modularize+asan+pthreads case.
Tech stack
cppwasm
Domain
compilers
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
C++EmscriptenGit
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
45