gh-90473: Increase stack size, disable obmalloc on WASI (GH-92732)

(cherry picked from commit d81d57e)

Co-authored-by: Christian Heimes <christian@python.org>

Lib/test/support/os_helper.py

@@ -50,7 +50,7 @@
                   % (TESTFN_UNENCODABLE, sys.getfilesystemencoding()))
             TESTFN_UNENCODABLE = None
 # macOS and Emscripten deny unencodable filenames (invalid utf-8)
-elif sys.platform not in {'darwin', 'emscripten'}:
+elif sys.platform not in {'darwin', 'emscripten', 'wasi'}:
     try:
         # ascii and utf-8 cannot encode the byte 0xff
         b'\xff'.decode(sys.getfilesystemencoding())

Lib/test/test_builtin.py

@@ -393,7 +393,10 @@ def test_compile_top_level_await_no_coro(self):
                                 msg=f"source={source} mode={mode}")
 
 
-    @unittest.skipIf(support.is_emscripten, "socket.accept is broken")
+    @unittest.skipIf(
+        support.is_emscripten or support.is_wasi,
+        "socket.accept is broken"
+    )
     def test_compile_top_level_await(self):
         """Test whether code some top level await can be compiled.
 

Misc/NEWS.d/next/Build/2022-05-12-10-19-15.gh-issue-90473.-syvqK.rst

@@ -0,0 +1 @@
+Disable pymalloc and increase stack size on ``wasm32-wasi``.

configure.ac

@@ -1994,6 +1994,10 @@ AS_CASE([$ac_sys_system],
     AC_DEFINE([_WASI_EMULATED_PROCESS_CLOCKS], [1], [Define to 1 if you want to emulate process clocks on WASI])
     LIBS="$LIBS -lwasi-emulated-signal -lwasi-emulated-getpid -lwasi-emulated-process-clocks"
     echo "#define _WASI_EMULATED_SIGNAL 1" >> confdefs.h
+
+    dnl increase initial memory and stack size, move stack first
+    dnl https://github.com/WebAssembly/wasi-libc/issues/233
+    AS_VAR_APPEND([LDFLAGS_NODIST], [" -z stack-size=524288 -Wl,--stack-first -Wl,--initial-memory=10485760"])
   ]
 )
 
@@ -4046,13 +4050,17 @@ dnl the check does not work on cross compilation case...
 #include <sys/types.h>
 #include <sys/socket.h>]],
 [[int domain = AF_INET6;]])],[
-  AC_MSG_RESULT(yes)
   ipv6=yes
 ],[
-  AC_MSG_RESULT(no)
   ipv6=no
 ])
 
+AS_CASE([$ac_sys_system],
+  [WASI], [ipv6=no]
+)
+
+AC_MSG_RESULT([$ipv6])
+
 if test "$ipv6" = "yes"; then
 	AC_MSG_CHECKING(if RFC2553 API is available)
 	AC_COMPILE_IFELSE([
@@ -4232,9 +4240,10 @@ AC_ARG_WITH(pymalloc,
 
 if test -z "$with_pymalloc"
 then
-  dnl default to yes except for wasm32-emscripten
+  dnl default to yes except for wasm32-emscripten and wasm32-wasi.
   AS_CASE([$ac_sys_system],
     [Emscripten], [with_pymalloc="no"],
+    [WASI], [with_pymalloc="no"],
     [with_pymalloc="yes"]
   )
 fi
@@ -6680,7 +6689,11 @@ AS_CASE([$ac_sys_system],
         )
       ],
       [Emscripten/node*], [],
-      [WASI/*], []
+      [WASI/*], [
+        PY_STDLIB_MOD_SET_NA(
+          [_ctypes_test],
+        )
+      ]
     )
   ],
   [PY_STDLIB_MOD_SET_NA([_scproxy])]