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- /*
- * tclLoadDld.c --
- *
- * This procedure provides a version of the TclLoadFile that
- * works with the "dld_link" and "dld_get_func" library procedures
- * for dynamic loading. It has been tested on Linux 1.1.95 and
- * dld-3.2.7. This file probably isn't needed anymore, since it
- * makes more sense to use "dl_open" etc.
- *
- * Copyright (c) 1995 Sun Microsystems, Inc.
- *
- * See the file "license.terms" for information on usage and redistribution
- * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
- *
- * SCCS: @(#) tclLoadDld.c 1.5 97/05/14 13:24:22
- */
-
- #include "tclInt.h"
- #include "dld.h"
-
- /*
- * In some systems, like SunOS 4.1.3, the RTLD_NOW flag isn't defined
- * and this argument to dlopen must always be 1.
- */
-
- #ifndef RTLD_NOW
- # define RTLD_NOW 1
- #endif
-
- /*
- *----------------------------------------------------------------------
- *
- * TclLoadFile --
- *
- * Dynamically loads a binary code file into memory and returns
- * the addresses of two procedures within that file, if they
- * are defined.
- *
- * Results:
- * A standard Tcl completion code. If an error occurs, an error
- * message is left in interp->result. *proc1Ptr and *proc2Ptr
- * are filled in with the addresses of the symbols given by
- * *sym1 and *sym2, or NULL if those symbols can't be found.
- *
- * Side effects:
- * New code suddenly appears in memory.
- *
- *----------------------------------------------------------------------
- */
-
- int
- TclLoadFile(interp, fileName, sym1, sym2, proc1Ptr, proc2Ptr)
- Tcl_Interp *interp; /* Used for error reporting. */
- char *fileName; /* Name of the file containing the desired
- * code. */
- char *sym1, *sym2; /* Names of two procedures to look up in
- * the file's symbol table. */
- Tcl_PackageInitProc **proc1Ptr, **proc2Ptr;
- /* Where to return the addresses corresponding
- * to sym1 and sym2. */
- {
- static int firstTime = 1;
- int returnCode;
-
- /*
- * The dld package needs to know the pathname to the tcl binary.
- * If that's not know, return an error.
- */
-
- if (firstTime) {
- if (tclExecutableName == NULL) {
- Tcl_SetResult(interp,
- "don't know name of application binary file, so can't initialize dynamic loader",
- TCL_STATIC);
- return TCL_ERROR;
- }
- returnCode = dld_init(tclExecutableName);
- if (returnCode != 0) {
- Tcl_AppendResult(interp,
- "initialization failed for dynamic loader: ",
- dld_strerror(returnCode), (char *) NULL);
- return TCL_ERROR;
- }
- firstTime = 0;
- }
-
- if ((returnCode = dld_link(fileName)) != 0) {
- Tcl_AppendResult(interp, "couldn't load file \"", fileName,
- "\": ", dld_strerror(returnCode), (char *) NULL);
- return TCL_ERROR;
- }
- *proc1Ptr = (Tcl_PackageInitProc *) dld_get_func(sym1);
- *proc2Ptr = (Tcl_PackageInitProc *) dld_get_func(sym2);
- return TCL_OK;
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * TclGuessPackageName --
- *
- * If the "load" command is invoked without providing a package
- * name, this procedure is invoked to try to figure it out.
- *
- * Results:
- * Always returns 0 to indicate that we couldn't figure out a
- * package name; generic code will then try to guess the package
- * from the file name. A return value of 1 would have meant that
- * we figured out the package name and put it in bufPtr.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
-
- int
- TclGuessPackageName(fileName, bufPtr)
- char *fileName; /* Name of file containing package (already
- * translated to local form if needed). */
- Tcl_DString *bufPtr; /* Initialized empty dstring. Append
- * package name to this if possible. */
- {
- return 0;
- }
-