diff options
Diffstat (limited to 'tcl8.6/unix/tclLoadNext.c')
| -rw-r--r-- | tcl8.6/unix/tclLoadNext.c | 217 |
1 files changed, 0 insertions, 217 deletions
diff --git a/tcl8.6/unix/tclLoadNext.c b/tcl8.6/unix/tclLoadNext.c deleted file mode 100644 index eb0affa..0000000 --- a/tcl8.6/unix/tclLoadNext.c +++ /dev/null @@ -1,217 +0,0 @@ -/* - * tclLoadNext.c -- - * - * This procedure provides a version of the TclLoadFile that works with - * NeXTs rld_* dynamic loading. This file provided by Pedja Bogdanovich. - * - * 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. - */ - -#include "tclInt.h" -#include <mach-o/rld.h> -#include <streams/streams.h> - -/* Static procedures defined within this file */ - -static void * FindSymbol(Tcl_Interp *interp, - Tcl_LoadHandle loadHandle, const char* symbol); -static void UnloadFile(Tcl_LoadHandle loadHandle); - -/* - *---------------------------------------------------------------------- - * - * TclpDlopen -- - * - * Dynamically loads a binary code file into memory and returns a handle - * to the new code. - * - * Results: - * A standard Tcl completion code. If an error occurs, an error message - * is left in the interp's result. - * - * Side effects: - * New code suddenly appears in memory. - * - *---------------------------------------------------------------------- - */ - -int -TclpDlopen( - Tcl_Interp *interp, /* Used for error reporting. */ - Tcl_Obj *pathPtr, /* Name of the file containing the desired - * code (UTF-8). */ - Tcl_LoadHandle *loadHandle, /* Filled with token for dynamically loaded - * file which will be passed back to - * (*unloadProcPtr)() to unload the file. */ - Tcl_FSUnloadFileProc **unloadProcPtr, - /* Filled with address of Tcl_FSUnloadFileProc - * function which should be used for this - * file. */ - int flags) -{ - Tcl_LoadHandle newHandle; - struct mach_header *header; - char *fileName; - char *files[2]; - const char *native; - int result = 1; - - NXStream *errorStream = NXOpenMemory(0,0,NX_READWRITE); - - fileName = Tcl_GetString(pathPtr); - - /* - * First try the full path the user gave us. This is particularly - * important if the cwd is inside a vfs, and we are trying to load using a - * relative path. - */ - - native = Tcl_FSGetNativePath(pathPtr); - files = {native,NULL}; - - result = rld_load(errorStream, &header, files, NULL); - - if (!result) { - /* - * Let the OS loader examine the binary search path for whatever - * string the user gave us which hopefully refers to a file on the - * binary path - */ - - Tcl_DString ds; - - native = Tcl_UtfToExternalDString(NULL, fileName, -1, &ds); - files = {native,NULL}; - result = rld_load(errorStream, &header, files, NULL); - Tcl_DStringFree(&ds); - } - - if (!result) { - char *data; - int len, maxlen; - - NXGetMemoryBuffer(errorStream, &data, &len, &maxlen); - Tcl_SetObjResult(interp, Tcl_ObjPrintf( - "couldn't load file \"%s\": %s", fileName, data)); - NXCloseMemory(errorStream, NX_FREEBUFFER); - return TCL_ERROR; - } - NXCloseMemory(errorStream, NX_FREEBUFFER); - - newHandle = ckalloc(sizeof(Tcl_LoadHandle)); - newHandle->clientData = INT2PTR(1); - newHandle->findSymbolProcPtr = &FindSymbol; - newHandle->unloadFileProcPtr = &UnloadFile; - *loadHandle = newHandle; - *unloadProcPtr = &UnloadFile; - - return TCL_OK; -} - -/* - *---------------------------------------------------------------------- - * - * FindSymbol -- - * - * Looks up a symbol, by name, through a handle associated with a - * previously loaded piece of code (shared library). - * - * Results: - * Returns a pointer to the function associated with 'symbol' if it is - * found. Otherwise returns NULL and may leave an error message in the - * interp's result. - * - *---------------------------------------------------------------------- - */ - -static void * -FindSymbol( - Tcl_Interp *interp, - Tcl_LoadHandle loadHandle, - const char *symbol) -{ - Tcl_PackageInitProc *proc = NULL; - - if (symbol) { - char sym[strlen(symbol) + 2]; - - sym[0] = '_'; - sym[1] = 0; - strcat(sym, symbol); - rld_lookup(NULL, sym, (unsigned long *) &proc); - } - if (proc == NULL && interp != NULL) { - Tcl_SetObjResult(interp, Tcl_ObjPrintf( - "cannot find symbol \"%s\"", symbol)); - Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "LOAD_SYMBOL", symbol, NULL); - } - return proc; -} - -/* - *---------------------------------------------------------------------- - * - * UnloadFile -- - * - * 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: - * Does nothing. Can anything be done? - * - *---------------------------------------------------------------------- - */ - -void -UnloadFile( - Tcl_LoadHandle loadHandle) /* loadHandle returned by a previous call to - * TclpDlopen(). The loadHandle is a token - * that represents the loaded file. */ -{ - ckfree(loadHandle); -} - -/* - *---------------------------------------------------------------------- - * - * 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( - const 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; -} - -/* - * Local Variables: - * mode: c - * c-basic-offset: 4 - * fill-column: 78 - * End: - */ |