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- /*
- * tclLoadOSF.c --
- *
- * This procedure provides a version of the TclLoadFile that works
- * under OSF/1 1.0/1.1/1.2 and related systems, utilizing the old OSF/1
- * /sbin/loader and /usr/include/loader.h. OSF/1 versions from 1.3 and
- * on use ELF, rtld, and dlopen()[/usr/include/ldfcn.h].
- *
- * This is useful for:
- * OSF/1 1.0, 1.1, 1.2 (from OSF)
- * includes: MK4 and AD1 (from OSF RI)
- * OSF/1 1.3 (from OSF) using ROSE
- * HP OSF/1 1.0 ("Acorn") using COFF
- *
- * This is likely to be useful for:
- * Paragon OSF/1 (from Intel)
- * HI-OSF/1 (from Hitachi)
- *
- * This is NOT to be used on:
- * Digitial Alpha OSF/1 systems
- * OSF/1 1.3 or later (from OSF) using ELF
- * includes: MK6, MK7, AD2, AD3 (from OSF RI)
- *
- * This approach to things was utter @&^#; thankfully,
- * OSF/1 eventually supported dlopen().
- *
- * John Robert LoVerso <loverso@freebsd.osf.org>
- *
- * 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: @(#) tclLoadOSF.c 1.2 96/02/15 11:58:40
- */
-
- #include "tclInt.h"
- #include <sys/types.h>
- #include <loader.h>
-
- /*
- *----------------------------------------------------------------------
- *
- * 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. */
- {
- ldr_module_t lm;
- char *pkg;
-
- lm = (Tcl_PackageInitProc *) load(fileName, LDR_NOFLAGS);
- if (lm == LDR_NULL_MODULE) {
- Tcl_AppendResult(interp, "couldn't load file \"", fileName,
- "\": ", Tcl_PosixError (interp), (char *) NULL);
- return TCL_ERROR;
- }
-
- /*
- * My convention is to use a [OSF loader] package name the same as shlib,
- * since the idiots never implemented ldr_lookup() and it is otherwise
- * impossible to get a package name given a module.
- *
- * I build loadable modules with a makefile rule like
- * ld ... -export $@: -o $@ $(OBJS)
- */
- if ((pkg = strrchr(fileName, '/')) == NULL)
- pkg = fileName;
- else
- pkg++;
- *proc1Ptr = ldr_lookup_package(pkg, sym1);
- *proc2Ptr = ldr_lookup_package(pkg, 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;
- }
-