Subject: [Bug 3433012]: Added dummy version of TclpLoadMemory to use in the event that a platform thinks it can load from memory but cannot actually do so due to it being disabled at configuration time.

From: dkf <[email-masked]>
Date: Tue, 5 Feb 2013 09:17:44 +0000

---
 ChangeLog             |  7 +++++++
 generic/tclLoadNone.c | 33 +++++++++++++++++++++++++++++++++
 2 files changed, 40 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index fac0bd3..747e1e8 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2013-02-05  Donal K. Fellows  <[email-masked]>
+
+	* generic/tclLoadNone.c (TclpLoadMemory): [Bug 3433012]: Added dummy
+	version of this function to use in the event that a platform thinks it
+	can load from memory but cannot actually do so due to it being
+	disabled at configuration time.
+
 2013-01-30  Andreas Kupries  <[email-masked]>
 
 	* library/platform/platform.tcl (::platform::LibcVersion): See
diff --git a/generic/tclLoadNone.c b/generic/tclLoadNone.c
index d328a41..af4ca81 100644
--- a/generic/tclLoadNone.c
+++ b/generic/tclLoadNone.c
@@ -134,6 +134,39 @@ TclpUnloadFile(
 }
 
 /*
+ * These functions are fallbacks if we somehow determine that the platform can
+ * do loading from memory but the user wishes to disable it. They just report
+ * (gracefully) that they fail.
+ */
+
+#ifdef TCL_LOAD_FROM_MEMORY
+
+MODULE_SCOPE void *
+TclpLoadMemoryGetBuffer(
+    Tcl_Interp *interp,		/* Dummy: unused by this implementation */
+    int size)			/* Dummy: unused by this implementation */
+{
+    return NULL;
+}
+
+MODULE_SCOPE int
+TclpLoadMemory(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    void *buffer,		/* Dummy: unused by this implementation */
+    int size,			/* Dummy: unused by this implementation */
+    int codeSize,		/* Dummy: unused by this implementation */
+    Tcl_LoadHandle *loadHandle,	/* Dummy: unused by this implementation */
+    Tcl_FSUnloadFileProc **unloadProcPtr)
+				/* Dummy: unused by this implementation */
+{
+    Tcl_SetResult(interp, "dynamic loading from memory is not available "
+	    "on this system", TCL_STATIC);
+    return TCL_ERROR;
+}
+
+#endif /* TCL_LOAD_FROM_MEMORY */
+
+/*
  * Local Variables:
  * mode: c
  * c-basic-offset: 4
-- 
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