bpo-40514: Add --with-experimental-isolated-subinterpreters (GH-19926)

bpo-40514: Add --with-experimental-isolated-subinterpreters (GH-19926) · python/cpython@c5fa364

5 files changed

lines changed

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,2 @@`
	`1`	+Add ``--with-experimental-isolated-subinterpreters`` build option to
	`2`	+``configure``: better isolate subinterpreters, experimental build mode.

Original file line number	Diff line number	Diff line change
`@@ -291,7 +291,17 @@ _PyPreConfig_InitCompatConfig(PyPreConfig *config)`
`291`	`291`	`config->coerce_c_locale_warn = 0;`
`292`	`292`
`293`	`293`	`config->dev_mode = -1;`
	`294`	`+#ifdef EXPERIMENTAL_ISOLATED_SUBINTERPRETERS`
	`295`	`+/* bpo-40512: pymalloc is not compatible with subinterpreters,`
	`296`	`+ force usage of libc malloc() which is thread-safe. */`
	`297`	`+#ifdef Py_DEBUG`
	`298`	`+config->allocator = PYMEM_ALLOCATOR_MALLOC_DEBUG;`
	`299`	`+#else`
	`300`	`+config->allocator = PYMEM_ALLOCATOR_MALLOC;`
	`301`	`+#endif`
	`302`	`+#else`
`294`	`303`	`config->allocator = PYMEM_ALLOCATOR_NOT_SET;`
	`304`	`+#endif`
`295`	`305`	`#ifdef MS_WINDOWS`
`296`	`306`	`config->legacy_windows_fs_encoding = -1;`
`297`	`307`	`#endif`

Original file line number	Diff line number	Diff line change
`@@ -845,6 +845,7 @@ with_computed_gotos`
`845`	`845`	`with_ensurepip`
`846`	`846`	`with_openssl`
`847`	`847`	`with_ssl_default_suites`
	`848`	`+with_experimental_isolated_subinterpreters`
`848`	`849`	`'`
`849`	`850`	`ac_precious_vars='build_alias`
`850`	`851`	`host_alias`
`@@ -1575,6 +1576,9 @@ Optional Packages:`
`1575`	`1576`	`leave OpenSSL's defaults untouched, STRING: use a`
`1576`	`1577`	`custom string, PROTOCOL_SSLv2 ignores the setting,`
`1577`	`1578`	`see Doc/library/ssl.rst`
	`1579`	`+ --with-experimental-isolated-subinterpreters`
	`1580`	`+ better isolate subinterpreters, experimental build`
	`1581`	`+ mode (default is no)`
`1578`	`1582`
`1579`	`1583`	`Some influential environment variables:`
`1580`	`1584`	`MACHDEP name for machine-dependent library files`
`@@ -17489,6 +17493,30 @@ $as_echo "#define PY_SSL_DEFAULT_CIPHERS 1" >>confdefs.h`
`17489`	`17493`	`fi`
`17490`	`17494`
`17491`	`17495`
	`17496`	`+# --with-experimental-isolated-subinterpreters`
	`17497`	`+`
	`17498`	`+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for --with-experimental-isolated-subinterpreters" >&5`
	`17499`	`+$as_echo_n "checking for --with-experimental-isolated-subinterpreters... " >&6; }`
	`17500`	`+`
	`17501`	`+# Check whether --with-experimental-isolated-subinterpreters was given.`
	`17502`	`+if test "${with_experimental_isolated_subinterpreters+set}" = set; then :`
	`17503`	`+ withval=$with_experimental_isolated_subinterpreters;`
	`17504`	`+if test "$withval" != no`
	`17505`	`+then`
	`17506`	`+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5`
	`17507`	`+$as_echo "yes" >&6; };`
	`17508`	`+$as_echo "#define EXPERIMENTAL_ISOLATED_SUBINTERPRETERS 1" >>confdefs.h`
	`17509`	`+`
	`17510`	`+else`
	`17511`	`+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5`
	`17512`	`+$as_echo "no" >&6; };`
	`17513`	`+fi`
	`17514`	`+else`
	`17515`	`+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5`
	`17516`	`+$as_echo "no" >&6; }`
	`17517`	`+fi`
	`17518`	`+`
	`17519`	`+`
`17492`	`17520`
`17493`	`17521`	`# generate output files`
`17494`	`17522`	`ac_config_files="$ac_config_files Makefile.pre Misc/python.pc Misc/python-embed.pc Misc/python-config.sh"`

Original file line number	Diff line number	Diff line change
`@@ -5717,6 +5717,23 @@ AC_MSG_RESULT(python)`
`5717`	`5717`	`AC_DEFINE(PY_SSL_DEFAULT_CIPHERS, 1)`
`5718`	`5718`	`])`
`5719`	`5719`
	`5720`	`+# --with-experimental-isolated-subinterpreters`
	`5721`	`+AH_TEMPLATE(EXPERIMENTAL_ISOLATED_SUBINTERPRETERS,`
	`5722`	`+[Better isolate subinterpreters, experimental build mode.])`
	`5723`	`+AC_MSG_CHECKING(for --with-experimental-isolated-subinterpreters)`
	`5724`	`+AC_ARG_WITH(experimental-isolated-subinterpreters,`
	`5725`	`+AS_HELP_STRING([--with-experimental-isolated-subinterpreters],`
	`5726`	`+[better isolate subinterpreters, experimental build mode (default is no)]),`
	`5727`	`+[`
	`5728`	`+if test "$withval" != no`
	`5729`	`+then`
	`5730`	`+ AC_MSG_RESULT(yes);`
	`5731`	`+ AC_DEFINE(EXPERIMENTAL_ISOLATED_SUBINTERPRETERS)`
	`5732`	`+else`
	`5733`	`+ AC_MSG_RESULT(no);`
	`5734`	`+fi],`
	`5735`	`+[AC_MSG_RESULT(no)])`
	`5736`	`+`
`5720`	`5737`
`5721`	`5738`	`# generate output files`
`5722`	`5739`	`AC_CONFIG_FILES(Makefile.pre Misc/python.pc Misc/python-embed.pc Misc/python-config.sh)`

Original file line number	Diff line number	Diff line change
`@@ -38,6 +38,9 @@`
`38`	`38`	`/* Define if --enable-ipv6 is specified */`
`39`	`39`	`#undef ENABLE_IPV6`
`40`	`40`
	`41`	`+/* Better isolate subinterpreters, experimental build mode. */`
	`42`	`+#undef EXPERIMENTAL_ISOLATED_SUBINTERPRETERS`
	`43`	`+`
`41`	`44`	`/* Define to 1 if your system stores words within floats with the most`
`42`	`45`	`significant word first */`
`43`	`46`	`#undef FLOAT_WORDS_BIGENDIAN`