diff options
Diffstat (limited to 'unix/tclLoadShl.c')
| -rw-r--r-- | unix/tclLoadShl.c | 174 |
1 files changed, 0 insertions, 174 deletions
diff --git a/unix/tclLoadShl.c b/unix/tclLoadShl.c deleted file mode 100644 index 3330919..0000000 --- a/unix/tclLoadShl.c +++ /dev/null @@ -1,174 +0,0 @@ -/* - * tclLoadShl.c -- - * - * This procedure provides a version of the TclLoadFile that works - * with the "shl_load" and "shl_findsym" library procedures for - * dynamic loading (e.g. for HP machines). - * - * 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: tclLoadShl.c,v 1.3 1999/04/16 00:48:04 stanton Exp $ - */ - -#include <dl.h> - -/* - * On some HP machines, dl.h defines EXTERN; remove that definition. - */ - -#ifdef EXTERN -# undef EXTERN -#endif - -#include "tcl.h" - -/* - *---------------------------------------------------------------------- - * - * 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. */ -{ - shl_t handle; - Tcl_DString newName; - - /* - * The flags below used to be BIND_IMMEDIATE; they were changed at - * the suggestion of Wolfgang Kechel (wolfgang@prs.de): "This - * enables verbosity for missing symbols when loading a shared lib - * and allows to load libtk8.0.sl into tclsh8.0 without problems. - * In general, this delays resolving symbols until they are actually - * needed. Shared libs do no longer need all libraries linked in - * when they are build." - */ - - handle = shl_load(fileName, BIND_DEFERRED|BIND_VERBOSE, 0L); - if (handle == NULL) { - Tcl_AppendResult(interp, "couldn't load file \"", fileName, - "\": ", Tcl_PosixError(interp), (char *) NULL); - return TCL_ERROR; - } - *clientDataPtr = (ClientData) handle; - - /* - * Some versions of the HP system software still use "_" at the - * beginning of exported symbols while others don't; try both - * forms of each name. - */ - - if (shl_findsym(&handle, sym1, (short) TYPE_PROCEDURE, (void *) proc1Ptr) - != 0) { - Tcl_DStringInit(&newName); - Tcl_DStringAppend(&newName, "_", 1); - Tcl_DStringAppend(&newName, sym1, -1); - if (shl_findsym(&handle, Tcl_DStringValue(&newName), - (short) TYPE_PROCEDURE, (void *) proc1Ptr) != 0) { - *proc1Ptr = NULL; - } - Tcl_DStringFree(&newName); - } - if (shl_findsym(&handle, sym2, (short) TYPE_PROCEDURE, (void *) proc2Ptr) - != 0) { - Tcl_DStringInit(&newName); - Tcl_DStringAppend(&newName, "_", 1); - Tcl_DStringAppend(&newName, sym2, -1); - if (shl_findsym(&handle, Tcl_DStringValue(&newName), - (short) TYPE_PROCEDURE, (void *) proc2Ptr) != 0) { - *proc2Ptr = NULL; - } - Tcl_DStringFree(&newName); - } - 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. */ -{ - shl_t handle; - - handle = (shl_t) clientData; - shl_unload(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; -} |