Patch #412229: Add functions sys.getdlopenflags and sys.setdlopenflags.
Add dlopenflags to PyInterpreterState, and use it in dlopen calls.
diff --git a/Python/sysmodule.c b/Python/sysmodule.c
index 76d40bf..0d6d5a0 100644
--- a/Python/sysmodule.c
+++ b/Python/sysmodule.c
@@ -394,6 +394,48 @@
of the Python interpreter stack. This limit prevents infinite\n\
recursion from causing an overflow of the C stack and crashing Python.";
+#ifdef HAVE_DLOPEN
+static PyObject *
+sys_setdlopenflags(PyObject *self, PyObject *args)
+{
+ int new_val;
+ PyThreadState *tstate = PyThreadState_Get();
+ if (!PyArg_ParseTuple(args, "i:setdlopenflags", &new_val))
+ return NULL;
+ if (!tstate)
+ return NULL;
+ tstate->interp->dlopenflags = new_val;
+ Py_INCREF(Py_None);
+ return Py_None;
+}
+
+static char setdlopenflags_doc[] =
+"setdlopenflags(n) -> None\n\
+\n\
+Set the flags that will be used for dlopen() calls. Among other\n\
+things, this will enable a lazy resolving of symbols when imporing\n\
+a module, if called as sys.setdlopenflags(0)\n\
+To share symols across extension modules, call as\n\
+sys.setdlopenflags(dl.RTLD_NOW|dl.RTLD_GLOBAL)";
+
+static PyObject *
+sys_getdlopenflags(PyObject *self, PyObject *args)
+{
+ PyThreadState *tstate = PyThreadState_Get();
+ if (!PyArg_ParseTuple(args, ":getdlopenflags"))
+ return NULL;
+ if (!tstate)
+ return NULL;
+ return PyInt_FromLong(tstate->interp->dlopenflags);
+}
+
+static char getdlopenflags_doc[] =
+"getdlopenflags() -> int\n\
+\n\
+Return the current value of the flags that are used for dlopen()\n\
+calls. The flag constants are defined in the dl module.";
+#endif
+
#ifdef USE_MALLOPT
/* Link with -lmalloc (or -lmpc) on an SGI */
#include <malloc.h>
@@ -501,6 +543,10 @@
{"exit", sys_exit, 0, exit_doc},
{"getdefaultencoding", sys_getdefaultencoding, 1,
getdefaultencoding_doc},
+#ifdef HAVE_DLOPEN
+ {"getdlopenflags", sys_getdlopenflags, 1,
+ getdlopenflags_doc},
+#endif
#ifdef COUNT_ALLOCS
{"getcounts", sys_getcounts, 1},
#endif
@@ -522,6 +568,10 @@
setdefaultencoding_doc},
{"setcheckinterval", sys_setcheckinterval, 1,
setcheckinterval_doc},
+#ifdef HAVE_DLOPEN
+ {"setdlopenflags", sys_setdlopenflags, 1,
+ setdlopenflags_doc},
+#endif
{"setprofile", sys_setprofile, 0, setprofile_doc},
{"setrecursionlimit", sys_setrecursionlimit, 1,
setrecursionlimit_doc},
@@ -659,9 +709,11 @@
excepthook() -- print an exception and its traceback to sys.stderr\n\
exc_info() -- return thread-safe information about the current exception\n\
exit() -- exit the interpreter by raising SystemExit\n\
+getdlopenflags() -- returns flags to be used for dlopen() calls\n\
getrefcount() -- return the reference count for an object (plus one :-)\n\
getrecursionlimit() -- return the max recursion depth for the interpreter\n\
setcheckinterval() -- control how often the interpreter checks for events\n\
+setdlopenflags() -- set the flags to be used for dlopen() calls\n\
setprofile() -- set the global profiling function\n\
setrecursionlimit() -- set the max recursion depth for the interpreter\n\
settrace() -- set the global debug tracing function\n\