Increase wasm limit to 32kb

Tools/wasm/wasi.py

@@ -280,9 +280,9 @@ def main():
  default_host_runner = (f"{shutil.which('wasmtime')} run "
  # Make sure the stack size will work for a pydebug
  # build.
- # The 8388608 value comes from double of `ulimit -s` under Linux
- # which equates to 8291*2 KiB.
- "--wasm max-wasm-stack=16777216 "
+ # The 33554432 value comes from quadruple of `ulimit -s` under Linux
+ # which equates to 8291*4 KiB.
+ "--wasm max-wasm-stack=33554432 "
  # Use WASI 0.2 primitives.
  "--wasi preview2 "
  # Enable thread support; causes use of preview1.

Tools/wasm/wasm_build.py

@@ -329,7 +329,7 @@ def _check_wasi() -> None:
  # workaround for https://github.com/python/cpython/issues/95952
  "HOSTRUNNER": (
  "wasmtime run "
- "--wasm max-wasm-stack=16777216 "
+ "--wasm max-wasm-stack=33554432 "
  "--wasi preview2 "
  "--dir {srcdir}::/ "
  "--env PYTHONPATH=/{relbuilddir}/build/lib.wasi-wasm32-{version}:/Lib"

configure.ac

@@ -1609,7 +1609,7 @@ then
  dnl TODO: support other WASI runtimes
  dnl wasmtime starts the proces with "/" as CWD. For OOT builds add the
  dnl directory containing _sysconfigdata to PYTHONPATH.
- [WASI/*], [HOSTRUNNER='wasmtime run --wasm max-wasm-stack=16777216 --wasi preview2 --env PYTHONPATH=/$(shell realpath --relative-to $(abs_srcdir) $(abs_builddir))/$(shell cat pybuilddir.txt):/Lib --dir $(srcdir)::/'],
+ [WASI/*], [HOSTRUNNER='wasmtime run --wasm max-wasm-stack=33554432 --wasi preview2 --env PYTHONPATH=/$(shell realpath --relative-to $(abs_srcdir) $(abs_builddir))/$(shell cat pybuilddir.txt):/Lib --dir $(srcdir)::/'],
  [HOSTRUNNER='']
  )
 fi