bpo-31904 : Python should support VxWorks RTOS

Include/osdefs.h

@@ -14,6 +14,10 @@ extern "C" {
 #define DELIM L';'
 #endif
 
+#ifdef __VXWORKS__
+#define DELIM L';'
+#endif
+
 /* Filename separator */
 #ifndef SEP
 #define SEP L'/'

Include/symtable.h

@@ -103,6 +103,10 @@ PyAPI_FUNC(void) PySymtable_Free(struct symtable *);
 #define SCOPE_OFFSET 11
 #define SCOPE_MASK (DEF_GLOBAL | DEF_LOCAL | DEF_PARAM | DEF_NONLOCAL)
 
+#ifdef __VXWORKS__
+  #undef LOCAL
+#endif
+
 #define LOCAL 1
 #define GLOBAL_EXPLICIT 2
 #define GLOBAL_IMPLICIT 3

Makefile.pre.in

@@ -56,6 +56,7 @@ DTRACE_HEADERS= @DTRACE_HEADERS@
 DTRACE_OBJS=    @DTRACE_OBJS@
 
 GNULD=		@GNULD@
+PY_ENABLE_SHARED=@PY_ENABLE_SHARED@
 
 # Shell used by make (some versions default to the login shell, which is bad)
 SHELL=		/bin/sh
@@ -101,11 +102,19 @@ PY_LDFLAGS=	$(CONFIGURE_LDFLAGS) $(LDFLAGS)
 NO_AS_NEEDED=	@NO_AS_NEEDED@
 LDLAST=		@LDLAST@
 SGI_ABI=	@SGI_ABI@
-CCSHARED=	@CCSHARED@
-LINKFORSHARED=	@LINKFORSHARED@
-ARFLAGS=	@ARFLAGS@
+
+ifeq ($(PY_ENABLE_SHARED),1)
+CCSHARED=       @CCSHARED@
+LINKFORSHARED=  @LINKFORSHARED@
 # Extra C flags added for building the interpreter object files.
 CFLAGSFORSHARED=@CFLAGSFORSHARED@
+else
+CCSHARED=
+LINKFORSHARED=
+CFLAGSFORSHARED=
+endif
+
+ARFLAGS=	@ARFLAGS@
 # C flags used for building the interpreter object files
 PY_CORE_CFLAGS=	$(PY_CFLAGS) $(PY_CFLAGS_NODIST) $(PY_CPPFLAGS) $(CFLAGSFORSHARED) -DPy_BUILD_CORE
 # Strict or non-strict aliasing flags used to compile dtoa.c, see above
@@ -440,7 +449,11 @@ DTRACE_DEPS = \
 
 # Default target
 all:		@DEF_MAKE_ALL_RULE@
-build_all:	$(BUILDPYTHON) oldsharedmods sharedmods gdbhooks Programs/_testembed python-config
+ifeq ($(PY_ENABLE_SHARED),1)
+build_all:      $(BUILDPYTHON) oldsharedmods sharedmods gdbhooks Programs/_testembed python-config
+else
+build_all:      $(BUILDPYTHON) gdbhooks Programs/_testembed python-config
+endif
 
 # Compile a binary with profile guided optimization.
 profile-opt:

Modules/_multiprocessing/multiprocessing.h

@@ -32,8 +32,12 @@
 #  define BOOL int
 #  define UINT32 uint32_t
 #  define INT32 int32_t
-#  define TRUE 1
-#  define FALSE 0
+#  ifndef TRUE
+#    define TRUE 1
+#  endif
+#  ifndef FALSE
+#    define FALSE 0
+#  endif
 #  define INVALID_HANDLE_VALUE (-1)
 #endif
 

Modules/faulthandler.c

@@ -13,7 +13,9 @@
 #ifdef HAVE_SYS_RESOURCE_H
 #  include <sys/resource.h>
 #endif
-
+#ifdef __VXWORKS__
+#  include <ioLib.h>
+#endif
 /* Allocate at maximum 100 MB of the stack to raise the stack overflow */
 #define STACK_OVERFLOW_MAX_SIZE (100*1024*1024)
 

Modules/fcntlmodule.c

@@ -15,6 +15,10 @@
 #include <stropts.h>
 #endif
 
+#ifdef __VXWORKS__
+#include <ioLib.h>   /* ioctl() */
+#endif
+
 /*[clinic input]
 module fcntl
 [clinic start generated code]*/

Modules/getbuildinfo.c

@@ -4,6 +4,11 @@
 #include <stdio.h>
 #endif
 
+#ifdef __VXWORKS__
+#undef DATE
+#undef TIME
+#endif
+
 #ifndef DATE
 #ifdef __DATE__
 #define DATE __DATE__

Modules/mmapmodule.c

@@ -1463,9 +1463,9 @@ PyInit_mmap(void)
 #endif
 
     setint(dict, "PAGESIZE", (long)my_getpagesize());
-
+#ifndef __VXWORKS__
     setint(dict, "ALLOCATIONGRANULARITY", (long)my_getallocationgranularity());
-
+#endif
     setint(dict, "ACCESS_READ", ACCESS_READ);
     setint(dict, "ACCESS_WRITE", ACCESS_WRITE);
     setint(dict, "ACCESS_COPY", ACCESS_COPY);

Modules/posixmodule.c

@@ -174,6 +174,7 @@ corresponding Unix manual entries for more information on calls.");
 #define HAVE_FSYNC      1
 #define fsync _commit
 #else
+#ifndef __VXWORKS__
 /* Unix functions that the configure script doesn't check for */
 #define HAVE_EXECV      1
 #define HAVE_FORK       1
@@ -184,6 +185,7 @@ corresponding Unix manual entries for more information on calls.");
 #define HAVE_GETEUID    1
 #define HAVE_GETGID     1
 #define HAVE_GETPPID    1
+#endif
 #define HAVE_GETUID     1
 #define HAVE_KILL       1
 #define HAVE_OPENDIR    1

Modules/signalmodule.c

@@ -965,11 +965,18 @@ fill_siginfo(siginfo_t *si)
 
     PyStructSequence_SET_ITEM(result, 0, PyLong_FromLong((long)(si->si_signo)));
     PyStructSequence_SET_ITEM(result, 1, PyLong_FromLong((long)(si->si_code)));
+#ifdef __VXWORKS__   
+    PyStructSequence_SET_ITEM(result, 2, PyLong_FromLong(0L));
+    PyStructSequence_SET_ITEM(result, 3, PyLong_FromLong(0L));
+    PyStructSequence_SET_ITEM(result, 4, PyLong_FromLong(0L));
+    PyStructSequence_SET_ITEM(result, 5, PyLong_FromLong(0L));
+#else   
     PyStructSequence_SET_ITEM(result, 2, PyLong_FromLong((long)(si->si_errno)));
     PyStructSequence_SET_ITEM(result, 3, PyLong_FromPid(si->si_pid));
     PyStructSequence_SET_ITEM(result, 4, _PyLong_FromUid(si->si_uid));
     PyStructSequence_SET_ITEM(result, 5,
                                 PyLong_FromLong((long)(si->si_status)));
+#endif   
 #ifdef HAVE_SIGINFO_T_SI_BAND
     PyStructSequence_SET_ITEM(result, 6, PyLong_FromLong(si->si_band));
 #else

Modules/socketmodule.c

@@ -97,6 +97,7 @@ Local naming conventions:
 # pragma weak inet_aton
 #endif
 
+
 #include "Python.h"
 #include "structmember.h"
 
@@ -159,7 +160,7 @@ if_indextoname(index) -- return the corresponding interface name\n\
 # undef HAVE_GETHOSTBYNAME_R_6_ARG
 #endif
 
-#if defined(__OpenBSD__)
+#if defined(__OpenBSD__) || defined(__VXWORKS__)
 # include <sys/uio.h>
 #endif
 
@@ -181,6 +182,12 @@ if_indextoname(index) -- return the corresponding interface name\n\
 # endif
 #endif
 
+#ifdef __VXWORKS__
+# include <ipcom_sock2.h>
+# define gethostbyaddr_r( a1, a2, a3, a4, a5, a6, a7 )  ipcom_gethostbyaddr_r( a1, a2, a3, a4, a5, a6, a7 )
+# include <hostLib.h>
+#endif
+
 #if !defined(HAVE_GETHOSTBYNAME_R) && !defined(MS_WINDOWS)
 # define USE_GETHOSTBYNAME_LOCK
 #endif
@@ -532,7 +539,7 @@ set_error(void)
     return PyErr_SetFromErrno(PyExc_OSError);
 }
 
-
+#ifndef __VXWORKS__
 static PyObject *
 set_herror(int h_error)
 {
@@ -550,7 +557,7 @@ set_herror(int h_error)
 
     return NULL;
 }
-
+#endif
 
 static PyObject *
 set_gaierror(int error)
@@ -903,7 +910,7 @@ init_sockobject(PySocketSockObject *s,
     return 0;
 }
 
-
+#ifdef HAVE_SOCKETPAIR
 /* Create a new socket object.
    This just creates the object and initializes it.
    If the creation fails, return NULL and set an exception (implicit
@@ -923,7 +930,7 @@ new_sockobject(SOCKET_T fd, int family, int type, int proto)
     }
     return s;
 }
-
+#endif
 
 /* Lock to allow python interpreter to continue, but only allow one
    thread to be in gethostbyname or getaddrinfo */
@@ -2314,17 +2321,17 @@ cmsg_min_space(struct msghdr *msg, struct cmsghdr *cmsgh, size_t space)
     #endif
     if (msg->msg_controllen < 0)
         return 0;
+    if (space < cmsg_len_end)
+        space = cmsg_len_end;
+    cmsg_offset = (char *)cmsgh - (char *)msg->msg_control;
+    return (cmsg_offset <= (size_t)-1 - space &&
+            cmsg_offset + space <= msg->msg_controllen);
     #if defined(__GNUC__) && ((__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ > 5)))
     #pragma GCC diagnostic pop
     #endif
     #ifdef __clang__
     #pragma clang diagnostic pop
     #endif
-    if (space < cmsg_len_end)
-        space = cmsg_len_end;
-    cmsg_offset = (char *)cmsgh - (char *)msg->msg_control;
-    return (cmsg_offset <= (size_t)-1 - space &&
-            cmsg_offset + space <= msg->msg_controllen);
 }
 
 /* If pointer CMSG_DATA(cmsgh) is in buffer msg->msg_control, set
@@ -5079,7 +5086,9 @@ gethost_common(struct hostent *h, struct sockaddr *addr, size_t alen, int af)
 
     if (h == NULL) {
         /* Let's get real error message to return */
+#ifndef __VXWORKS__	
         set_herror(h_errno);
+#endif        
         return NULL;
     }
 
@@ -5426,6 +5435,7 @@ Return the service name from a port number and protocol name.\n\
 The optional protocol name, if given, should be 'tcp' or 'udp',\n\
 otherwise any protocol will match.");
 
+#ifndef __VXWORKS__
 /* Python interface to getprotobyname(name).
    This only returns the protocol number, since the other info is
    already known or not useful (like the list of aliases). */
@@ -5452,7 +5462,7 @@ PyDoc_STRVAR(getprotobyname_doc,
 "getprotobyname(name) -> integer\n\
 \n\
 Return the protocol number for the named protocol.  (Rarely used.)");
-
+#endif
 
 #ifndef NO_DUP
 /* dup() function for socket fds */
@@ -6392,8 +6402,10 @@ static PyMethodDef socket_methods[] = {
      METH_VARARGS, getservbyname_doc},
     {"getservbyport",           socket_getservbyport,
      METH_VARARGS, getservbyport_doc},
+#ifndef __VXWORKS__     
     {"getprotobyname",          socket_getprotobyname,
      METH_VARARGS, getprotobyname_doc},
+#endif     
 #ifndef NO_DUP
     {"dup",                     socket_dup,
      METH_O, dup_doc},

Modules/syslogmodule.c

@@ -54,6 +54,10 @@ Revision history:
 
 #include <syslog.h>
 
+#ifndef LOG_UPTO
+#define	LOG_UPTO(pri)	((1 << ((pri)+1)) - 1)	/* all priorities through pri */
+#endif
+
 /*  only one instance, only one syslog, so globals should be ok  */
 static PyObject *S_ident_o = NULL;                      /*  identifier, held by openlog()  */
 static char S_log_open = 0;

Modules/timemodule.c

@@ -1215,13 +1215,15 @@ PyInit_timezone(PyObject *m) {
 #if defined(HAVE_TZNAME) && !defined(__GLIBC__) && !defined(__CYGWIN__)
     PyObject *otz0, *otz1;
     tzset();
+#ifndef __VXWORKS__
     PyModule_AddIntConstant(m, "timezone", timezone);
 #ifdef HAVE_ALTZONE
     PyModule_AddIntConstant(m, "altzone", altzone);
 #else
     PyModule_AddIntConstant(m, "altzone", timezone-3600);
 #endif
     PyModule_AddIntConstant(m, "daylight", daylight);
+#endif    
     otz0 = PyUnicode_DecodeLocale(tzname[0], "surrogateescape");
     otz1 = PyUnicode_DecodeLocale(tzname[1], "surrogateescape");
     PyModule_AddObject(m, "tzname", Py_BuildValue("(NN)", otz0, otz1));

Python/pylifecycle.c

@@ -1421,6 +1421,10 @@ initfsencoding(PyInterpreterState *interp)
         Py_FileSystemDefaultEncoding = "utf-8";
         Py_FileSystemDefaultEncodeErrors = "surrogatepass";
     }
+#elif defined(__VXWORKS__)
+    {
+    Py_FileSystemDefaultEncoding = "ascii";
+    }
 #else
     if (Py_FileSystemDefaultEncoding == NULL)
     {

configure

@@ -2927,7 +2927,7 @@ $as_echo_n "checking for python interpreter for cross build... " >&6; }
 	    if $interp -c "import sys;sys.exit(not '.'.join(str(n) for n in sys.version_info[:2]) == '$PACKAGE_VERSION')"; then
 	        break
 	    fi
-            interp=
+
 	done
         if test x$interp = x; then
 	    as_fn_error $? "python$PACKAGE_VERSION interpreter not found" "$LINENO" 5
@@ -3258,6 +3258,9 @@ then
 	*-*-cygwin*)
 		ac_sys_system=Cygwin
 		;;
+	*-*-vxworks*)
+		ac_sys_system=VxWorks
+		;;
 	*)
 		# for now, limit cross builds to known configurations
 		MACHDEP="unknown"
@@ -3302,6 +3305,9 @@ if test "$cross_compiling" = yes; then
 	*-*-cygwin*)
 		_host_cpu=
 		;;
+	*-*-vxworks*)
+		_host_cpu=
+		;;
 	*)
 		# for now, limit cross builds to known configurations
 		MACHDEP="unknown"
@@ -3320,6 +3326,10 @@ fi
 # wildcard, and that the wildcard does not include future systems
 # (which may remove their limitations).
 case $ac_sys_system/$ac_sys_release in
+  # On VxWorks if _XOPEN_SOURCE is defined the socket.h header 
+  # has undefined types.
+  VxWorks* )
+    define_xopen_source=no;;
   # On OpenBSD, select(2) is not available if _XOPEN_SOURCE is defined,
   # even though select is a POSIX function. Reported by J. Ribbens.
   # Reconfirmed for OpenBSD 3.3 by Zachary Hamm, for 3.4 by Jason Ish.
@@ -13299,7 +13309,7 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_char_unsigned" >&5
 $as_echo "$ac_cv_c_char_unsigned" >&6; }
-if test $ac_cv_c_char_unsigned = yes && test "$GCC" != yes; then
+if test $ac_cv_c_char_unsigned = yes && test "$GCC" != yes && test "$ac_sys_system" != "VxWorks"  ; then
   $as_echo "#define __CHAR_UNSIGNED__ 1" >>confdefs.h
 
 fi