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Diffstat (limited to 'unix/tclLoadDld.c')
-rw-r--r-- | unix/tclLoadDld.c | 162 |
1 files changed, 0 insertions, 162 deletions
diff --git a/unix/tclLoadDld.c b/unix/tclLoadDld.c deleted file mode 100644 index 1f9e702..0000000 --- a/unix/tclLoadDld.c +++ /dev/null @@ -1,162 +0,0 @@ -/* - * 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; -} |