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-rw-r--r--unix/tclLoadDld.c162
1 files changed, 0 insertions, 162 deletions
diff --git a/unix/tclLoadDld.c b/unix/tclLoadDld.c
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--- a/unix/tclLoadDld.c
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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) 1995-1997 Sun Microsystems, Inc.
- *
- * See the file "license.terms" for information on usage and redistribution
- * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
- *
- * RCS: @(#) $Id: tclLoadDld.c,v 1.3 1999/04/16 00:48:04 stanton Exp $
- */
-
-#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
-
-/*
- *----------------------------------------------------------------------
- *
- * TclpLoadFile --
- *
- * 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 the interp's 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
-TclpLoadFile(interp, fileName, sym1, sym2, proc1Ptr, proc2Ptr, clientDataPtr)
- 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. */
- ClientData *clientDataPtr; /* Filled with token for dynamically loaded
- * file which will be passed back to
- * TclpUnloadFile() to unload the file. */
-{
- 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);
- *clientDataPtr = strcpy(
- (char *) ckalloc((unsigned) (strlen(fileName) + 1)), fileName);
- return TCL_OK;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TclpUnloadFile --
- *
- * Unloads a dynamically loaded binary code file from memory.
- * Code pointers in the formerly loaded file are no longer valid
- * after calling this function.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Code removed from memory.
- *
- *----------------------------------------------------------------------
- */
-
-void
-TclpUnloadFile(clientData)
- ClientData clientData; /* ClientData returned by a previous call
- * to TclpLoadFile(). The clientData is
- * a token that represents the loaded
- * file. */
-{
- char *fileName;
-
- handle = (char *) clientData;
- dld_unlink_by_file(handle, 0);
- ckfree(handle);
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * 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;
-}