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22a1d3671b
file per platform (really: per style of Dl API; e.g. all platforms using dlopen() are grouped together in dynload_shlib.c.). This is part of a set of patches by Greg Stein.
135 lines
4.1 KiB
C
135 lines
4.1 KiB
C
/***********************************************************
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Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
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The Netherlands.
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All Rights Reserved
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Permission to use, copy, modify, and distribute this software and its
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documentation for any purpose and without fee is hereby granted,
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provided that the above copyright notice appear in all copies and that
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both that copyright notice and this permission notice appear in
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supporting documentation, and that the names of Stichting Mathematisch
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Centrum or CWI or Corporation for National Research Initiatives or
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CNRI not be used in advertising or publicity pertaining to
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distribution of the software without specific, written prior
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permission.
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While CWI is the initial source for this software, a modified version
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is made available by the Corporation for National Research Initiatives
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(CNRI) at the Internet address ftp://ftp.python.org.
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STICHTING MATHEMATISCH CENTRUM AND CNRI DISCLAIM ALL WARRANTIES WITH
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REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH
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CENTRUM OR CNRI BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
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DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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PERFORMANCE OF THIS SOFTWARE.
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******************************************************************/
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/* Support for dynamic loading of extension modules */
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#include "Python.h"
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#include "importdl.h"
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#include <Aliases.h>
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#include <CodeFragments.h>
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#ifdef SYMANTEC__CFM68K__ /* Really an older version of Universal Headers */
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#define CFragConnectionID ConnectionID
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#define kLoadCFrag 0x01
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#endif
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#ifdef USE_GUSI
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#include "TFileSpec.h" /* for Path2FSSpec() */
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#endif
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#include <Files.h>
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#include "macdefs.h"
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#include "macglue.h"
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const struct filedescr _PyImport_DynLoadFiletab[] = {
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{".slb", "rb", C_EXTENSION},
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#ifdef __CFM68K__
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{".CFM68K.slb", "rb", C_EXTENSION},
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#else
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{".ppc.slb", "rb", C_EXTENSION},
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#endif
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{0, 0}
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};
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dl_funcptr _PyImport_GetDynLoadFunc(const char *name, const char *funcname,
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const char *pathname, FILE *fp)
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{
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dl_funcptr p;
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/*
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** Dynamic loading of CFM shared libraries on the Mac. The
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** code has become more convoluted than it was, because we
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** want to be able to put multiple modules in a single
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** file. For this reason, we have to determine the fragment
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** name, and we cannot use the library entry point but we have
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** to locate the correct init routine "by hand".
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*/
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FSSpec libspec;
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CFragConnectionID connID;
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Ptr mainAddr;
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Str255 errMessage;
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OSErr err;
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#ifndef USE_GUSI
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Boolean isfolder, didsomething;
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#endif
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char buf[512];
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Str63 fragname;
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Ptr symAddr;
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CFragSymbolClass class;
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/* First resolve any aliases to find the real file */
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#ifdef USE_GUSI
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err = Path2FSSpec(pathname, &libspec);
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#else
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(void)FSMakeFSSpec(0, 0, Pstring(pathname), &libspec);
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err = ResolveAliasFile(&libspec, 1, &isfolder, &didsomething);
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#endif
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if ( err ) {
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sprintf(buf, "%.255s: %.200s",
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pathname, PyMac_StrError(err));
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PyErr_SetString(PyExc_ImportError, buf);
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return NULL;
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}
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/* Next, determine the fragment name,
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by stripping '.slb' and 'module' */
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memcpy(fragname+1, libspec.name+1, libspec.name[0]);
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fragname[0] = libspec.name[0];
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if( strncmp((char *)(fragname+1+fragname[0]-4),
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".slb", 4) == 0 )
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fragname[0] -= 4;
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if ( strncmp((char *)(fragname+1+fragname[0]-6),
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"module", 6) == 0 )
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fragname[0] -= 6;
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/* Load the fragment
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(or return the connID if it is already loaded */
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err = GetDiskFragment(&libspec, 0, 0, fragname,
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kLoadCFrag, &connID, &mainAddr,
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errMessage);
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if ( err ) {
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sprintf(buf, "%.*s: %.200s",
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errMessage[0], errMessage+1,
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PyMac_StrError(err));
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PyErr_SetString(PyExc_ImportError, buf);
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return NULL;
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}
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/* Locate the address of the correct init function */
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err = FindSymbol(connID, Pstring(funcname), &symAddr, &class);
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if ( err ) {
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sprintf(buf, "%s: %.200s",
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funcname, PyMac_StrError(err));
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PyErr_SetString(PyExc_ImportError, buf);
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return NULL;
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}
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p = (dl_funcptr)symAddr;
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return p;
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}
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