Delete old hw/xfree86/loader/loader.c changes
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/*
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* Copyright 1995-1998 by Metro Link, Inc.
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of Metro Link, Inc. not be used in
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* advertising or publicity pertaining to distribution of the software without
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* specific, written prior permission. Metro Link, Inc. makes no
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* representations about the suitability of this software for any purpose.
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* It is provided "as is" without express or implied warranty.
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*
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* METRO LINK, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL METRO LINK, INC. BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR 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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/*
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* Copyright (c) 1997-2003 by The XFree86 Project, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Except as contained in this notice, the name of the copyright holder(s)
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* and author(s) shall not be used in advertising or otherwise to promote
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* the sale, use or other dealings in this Software without prior written
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* authorization from the copyright holder(s) and author(s).
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*/
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#ifdef HAVE_XORG_CONFIG_H
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#include <xorg-config.h>
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#endif
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#include <string.h>
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#include "os.h"
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#include "loader.h"
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#include "loaderProcs.h"
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#ifdef HAVE_DLFCN_H
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#include <dlfcn.h>
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#include <X11/Xos.h>
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#else
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#error i have no dynamic linker and i must scream
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#endif
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#ifndef XORG_NO_SDKSYMS
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extern void *xorg_symbols[];
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#endif
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void
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LoaderInit(void)
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{
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#ifndef XORG_NO_SDKSYMS
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LogMessageVerb(X_INFO, 2, "Loader magic: %p\n", (void *) xorg_symbols);
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#endif
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LogMessageVerb(X_INFO, 2, "Module ABI versions:\n");
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LogMessageVerb(X_NONE, 2, "\t%s: %d.%d\n", ABI_CLASS_ANSIC,
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GET_ABI_MAJOR(LoaderVersionInfo.ansicVersion),
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GET_ABI_MINOR(LoaderVersionInfo.ansicVersion));
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LogMessageVerb(X_NONE, 2, "\t%s: %d.%d\n", ABI_CLASS_VIDEODRV,
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GET_ABI_MAJOR(LoaderVersionInfo.videodrvVersion),
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GET_ABI_MINOR(LoaderVersionInfo.videodrvVersion));
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LogMessageVerb(X_NONE, 2, "\t%s : %d.%d\n", ABI_CLASS_XINPUT,
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GET_ABI_MAJOR(LoaderVersionInfo.xinputVersion),
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GET_ABI_MINOR(LoaderVersionInfo.xinputVersion));
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LogMessageVerb(X_NONE, 2, "\t%s : %d.%d\n", ABI_CLASS_EXTENSION,
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GET_ABI_MAJOR(LoaderVersionInfo.extensionVersion),
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GET_ABI_MINOR(LoaderVersionInfo.extensionVersion));
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}
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/* Public Interface to the loader. */
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void *
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LoaderOpen(const char *module, int *errmaj)
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{
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void *ret;
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#if defined(DEBUG)
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ErrorF("LoaderOpen(%s)\n", module);
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#endif
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LogMessage(X_INFO, "Loading %s\n", module);
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if (!(ret = dlopen(module, RTLD_LAZY | RTLD_GLOBAL))) {
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LogMessage(X_ERROR, "Failed to load %s: %s\n", module, dlerror());
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if (errmaj)
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*errmaj = LDR_NOLOAD;
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return NULL;
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}
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return ret;
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}
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void *
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LoaderSymbol(const char *name)
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{
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static void *global_scope = NULL;
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void *p;
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p = dlsym(RTLD_DEFAULT, name);
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if (p != NULL)
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return p;
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if (!global_scope)
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global_scope = dlopen(NULL, RTLD_LAZY | RTLD_GLOBAL);
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if (global_scope)
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return dlsym(global_scope, name);
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return NULL;
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}
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void *
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LoaderSymbolFromModule(void *handle, const char *name)
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{
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ModuleDescPtr mod = handle;
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return dlsym(mod->handle, name);
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}
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void
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LoaderUnload(const char *name, void *handle)
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{
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LogMessageVerb(X_INFO, 1, "Unloading %s\n", name);
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if (handle)
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dlclose(handle);
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}
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unsigned long LoaderOptions = 0;
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void
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LoaderSetOptions(unsigned long opts)
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{
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LoaderOptions |= opts;
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}
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Bool
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LoaderShouldIgnoreABI(void)
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{
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LogMessage(X_WARNING,
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"ABI mismatch detected possibly from an NVIDIA driver. Attempting to continue loading X...\n"
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"Expected ABI versions: ANSIC=%d, VideoDriver=%d, XInput=%d, Extension=%d\n",
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LoaderVersionInfo.ansicVersion,
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LoaderVersionInfo.videodrvVersion,
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LoaderVersionInfo.xinputVersion,
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LoaderVersionInfo.extensionVersion);
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return TRUE;
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}
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int
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LoaderGetABIVersion(const char *abiclass)
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{
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struct {
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const char *name;
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int version;
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} classes[] = {
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{ABI_CLASS_ANSIC, LoaderVersionInfo.ansicVersion},
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{ABI_CLASS_VIDEODRV, LoaderVersionInfo.videodrvVersion},
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{ABI_CLASS_XINPUT, LoaderVersionInfo.xinputVersion},
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{ABI_CLASS_EXTENSION, LoaderVersionInfo.extensionVersion},
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{NULL, 0}
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};
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int i;
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for (i = 0; classes[i].name; i++) {
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if (!strcmp(classes[i].name, abiclass)) {
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return classes[i].version;
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}
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}
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return 0;
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}
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