xserver git update 11/9/2010

1 files changed, 319 insertions, 321 deletions

diff --git a/xorg-server/hw/xfree86/loader/loader.c b/xorg-server/hw/xfree86/loader/loader.c
index 6a4c08916..7ea934a89 100644
--- a/xorg-server/hw/xfree86/loader/loader.c
+++ b/xorg-server/hw/xfree86/loader/loader.c
@@ -1,321 +1,319 @@
-/*
- * Copyright 1995-1998 by Metro Link, Inc.
- *
- * Permission to use, copy, modify, distribute, and sell this software and its
- * documentation for any purpose is hereby granted without fee, provided that
- * the above copyright notice appear in all copies and that both that
- * copyright notice and this permission notice appear in supporting
- * documentation, and that the name of Metro Link, Inc. not be used in
- * advertising or publicity pertaining to distribution of the software without
- * specific, written prior permission.  Metro Link, Inc. makes no
- * representations about the suitability of this software for any purpose.
- *  It is provided "as is" without express or implied warranty.
- *
- * METRO LINK, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
- * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
- * EVENT SHALL METRO LINK, INC. BE LIABLE FOR ANY SPECIAL, INDIRECT OR
- * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
- * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
- * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
- * PERFORMANCE OF THIS SOFTWARE.
- */
-/*
- * Copyright (c) 1997-2003 by The XFree86 Project, Inc.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
- * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
- * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
- *
- * Except as contained in this notice, the name of the copyright holder(s)
- * and author(s) shall not be used in advertising or otherwise to promote
- * the sale, use or other dealings in this Software without prior written
- * authorization from the copyright holder(s) and author(s).
- */
-
-#ifdef HAVE_XORG_CONFIG_H
-#include <xorg-config.h>
-#endif
-
-#include <errno.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/types.h>
-#if defined(UseMMAP) || (defined(linux) && defined(__ia64__))
-#include <sys/mman.h>
-#endif
-#include <unistd.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <string.h>
-#if defined(linux) && \
-    (defined(__alpha__) || defined(__powerpc__) || defined(__ia64__) \
-    || defined(__amd64__))
-#include <malloc.h>
-#endif
-#include <stdarg.h>
-
-#include "os.h"
-#include "loader.h"
-#include "loaderProcs.h"
-#include "xf86.h"
-#include "xf86Priv.h"
-#include "compiler.h"
-
-extern void *xorg_symbols[];
-
-#define MAX_HANDLE 256
-static int refCount[MAX_HANDLE];
-
-static int moduleseq = 0;
-
-/* Prototypes for static functions. */
-static loaderPtr listHead = NULL;
-
-static loaderPtr
-_LoaderListPush(void)
-{
-    loaderPtr item = calloc(1, sizeof(struct _loader));
-
-    item->next = listHead;
-    listHead = item;
-
-    return item;
-}
-
-static loaderPtr
-_LoaderListPop(int handle)
-{
-    loaderPtr item = listHead;
-    loaderPtr *bptr = &listHead;	/* pointer to previous node */
-
-    while (item) {
-	if (item->handle == handle) {
-	    *bptr = item->next;	/* remove this from the list */
-	    return item;
-	}
-	bptr = &(item->next);
-	item = item->next;
-    }
-
-    return 0;
-}
-
-void
-LoaderInit(void)
-{
-    xf86MsgVerb(X_INFO, 2, "Loader magic: %p\n", (void *)xorg_symbols);
-    xf86MsgVerb(X_INFO, 2, "Module ABI versions:\n");
-    xf86ErrorFVerb(2, "\t%s: %d.%d\n", ABI_CLASS_ANSIC,
-		   GET_ABI_MAJOR(LoaderVersionInfo.ansicVersion),
-		   GET_ABI_MINOR(LoaderVersionInfo.ansicVersion));
-    xf86ErrorFVerb(2, "\t%s: %d.%d\n", ABI_CLASS_VIDEODRV,
-		   GET_ABI_MAJOR(LoaderVersionInfo.videodrvVersion),
-		   GET_ABI_MINOR(LoaderVersionInfo.videodrvVersion));
-    xf86ErrorFVerb(2, "\t%s : %d.%d\n", ABI_CLASS_XINPUT,
-		   GET_ABI_MAJOR(LoaderVersionInfo.xinputVersion),
-		   GET_ABI_MINOR(LoaderVersionInfo.xinputVersion));
-    xf86ErrorFVerb(2, "\t%s : %d.%d\n", ABI_CLASS_EXTENSION,
-		   GET_ABI_MAJOR(LoaderVersionInfo.extensionVersion),
-		   GET_ABI_MINOR(LoaderVersionInfo.extensionVersion));
-
-#if defined(__UNIXWARE__) && !defined(__GNUC__)
-    /* For UnixWare we need to load the C Runtime libraries which are
-     * normally auto-linked by the compiler. Otherwise we are bound to
-     * see unresolved symbols when trying to use the type "long long".
-     * Obviously, this does not apply if the GNU C compiler is used.
-     */
-    {
-	int errmaj, errmin, wasLoaded; /* place holders */
-	char *xcrtpath = DEFAULT_MODULE_PATH "/libcrt.a";
-	char *uwcrtpath = "/usr/ccs/lib/libcrt.a";
-	char *path;
-	struct stat st;
-
-	if(stat(xcrtpath, &st) < 0)
-	    path = uwcrtpath; /* fallback: try to get libcrt.a from the uccs */
-	else
-	    path = xcrtpath; /* get the libcrt.a we compiled with */
-	LoaderOpen (path, "libcrt", 0, &errmaj, &errmin, &wasLoaded);
-    }
-#endif
-}
-
-/* Public Interface to the loader. */
-
-int
-LoaderOpen(const char *module, const char *cname, int handle,
-	   int *errmaj, int *errmin, int *wasLoaded, int flags)
-{
-    loaderPtr tmp;
-    int new_handle;
-
-#if defined(DEBUG)
-    ErrorF("LoaderOpen(%s)\n", module);
-#endif
-
-    /* Is the module already loaded? */
-    if (handle >= 0) {
-	tmp = listHead;
-	while (tmp) {
-#ifdef DEBUGLIST
-	    ErrorF("strcmp(%x(%s),{%x} %x(%s))\n", module, module,
-		   &(tmp->name), tmp->name, tmp->name);
-#endif
-	    if (!strcmp(module, tmp->name)) {
-		refCount[tmp->handle]++;
-		if (wasLoaded)
-		    *wasLoaded = 1;
-		xf86MsgVerb(X_INFO, 2, "Reloading %s\n", module);
-		return tmp->handle;
-	    }
-	    tmp = tmp->next;
-	}
-    }
-
-    /*
-     * OK, it's a new one. Add it.
-     */
-    xf86Msg(X_INFO, "Loading %s\n", module);
-    if (wasLoaded)
-	*wasLoaded = 0;
-
-    /*
-     * Find a free handle.
-     */
-    new_handle = 1;
-    while (new_handle < MAX_HANDLE && refCount[new_handle])
-	new_handle++;
-
-    if (new_handle == MAX_HANDLE) {
-	xf86Msg(X_ERROR, "Out of loader space\n");	/* XXX */
-	if (errmaj)
-	    *errmaj = LDR_NOSPACE;
-	if (errmin)
-	    *errmin = LDR_NOSPACE;
-	return -1;
-    }
-
-    refCount[new_handle] = 1;
-
-    tmp = _LoaderListPush();
-    tmp->name = malloc(strlen(module) + 1);
-    strcpy(tmp->name, module);
-    tmp->cname = malloc(strlen(cname) + 1);
-    strcpy(tmp->cname, cname);
-    tmp->handle = new_handle;
-    tmp->module = moduleseq++;
-
-    if ((tmp->private = DLLoadModule(tmp, flags)) == NULL) {
-	xf86Msg(X_ERROR, "Failed to load %s\n", module);
-	_LoaderListPop(new_handle);
-	refCount[new_handle] = 0;
-	if (errmaj)
-	    *errmaj = LDR_NOLOAD;
-	if (errmin)
-	    *errmin = LDR_NOLOAD;
-	return -1;
-    }
-
-    return new_handle;
-}
-
-int
-LoaderHandleOpen(int handle)
-{
-    if (handle < 0 || handle >= MAX_HANDLE)
-	return -1;
-
-    if (!refCount[handle])
-	return -1;
-
-    refCount[handle]++;
-    return handle;
-}
-
-void *
-LoaderSymbol(const char *sym)
-{
-    return (DLFindSymbol(sym));
-}
-
-int
-LoaderUnload(int handle)
-{
-    loaderRec fakeHead;
-    loaderPtr tmp = &fakeHead;
-
-    if (handle < 0 || handle >= MAX_HANDLE)
-	return -1;
-
-    /*
-     * check the reference count, only free it if it goes to zero
-     */
-    if (--refCount[handle])
-	return 0;
-    /*
-     * find the loaderRecs associated with this handle.
-     */
-
-    while ((tmp = _LoaderListPop(handle)) != NULL) {
-	xf86Msg(X_INFO, "Unloading %s\n", tmp->name);
-	DLUnloadModule(tmp->private);
-	free(tmp->name);
-	free(tmp->cname);
-	free(tmp);
-    }
-
-    return 0;
-}
-
-unsigned long LoaderOptions = 0;
-
-void
-LoaderSetOptions(unsigned long opts)
-{
-    LoaderOptions |= opts;
-}
-
-Bool
-LoaderShouldIgnoreABI(void)
-{
-    return (LoaderOptions & LDR_OPT_ABI_MISMATCH_NONFATAL) != 0;
-}
-
-int
-LoaderGetABIVersion(const char *abiclass)
-{
-    struct {
-        const char *name;
-        int version;
-    } classes[] = {
-        { ABI_CLASS_ANSIC,     LoaderVersionInfo.ansicVersion },
-        { ABI_CLASS_VIDEODRV,  LoaderVersionInfo.videodrvVersion },
-        { ABI_CLASS_XINPUT,    LoaderVersionInfo.xinputVersion },
-        { ABI_CLASS_EXTENSION, LoaderVersionInfo.extensionVersion },
-        { ABI_CLASS_FONT,      LoaderVersionInfo.fontVersion },
-        { NULL,                0 }
-    };
-    int i;
-
-    for(i = 0; classes[i].name; i++) {
-        if(!strcmp(classes[i].name, abiclass)) {
-            return classes[i].version;
-        }
-    }
-
-    return 0;
-}
+/*

+ * Copyright 1995-1998 by Metro Link, Inc.

+ *

+ * Permission to use, copy, modify, distribute, and sell this software and its

+ * documentation for any purpose is hereby granted without fee, provided that

+ * the above copyright notice appear in all copies and that both that

+ * copyright notice and this permission notice appear in supporting

+ * documentation, and that the name of Metro Link, Inc. not be used in

+ * advertising or publicity pertaining to distribution of the software without

+ * specific, written prior permission.  Metro Link, Inc. makes no

+ * representations about the suitability of this software for any purpose.

+ *  It is provided "as is" without express or implied warranty.

+ *

+ * METRO LINK, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,

+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO

+ * EVENT SHALL METRO LINK, INC. BE LIABLE FOR ANY SPECIAL, INDIRECT OR

+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,

+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER

+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR

+ * PERFORMANCE OF THIS SOFTWARE.

+ */

+/*

+ * Copyright (c) 1997-2003 by The XFree86 Project, Inc.

+ *

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the "Software"),

+ * to deal in the Software without restriction, including without limitation

+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,

+ * and/or sell copies of the Software, and to permit persons to whom the

+ * Software is furnished to do so, subject to the following conditions:

+ *

+ * The above copyright notice and this permission notice shall be included in

+ * all copies or substantial portions of the Software.

+ *

+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR

+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,

+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR

+ * OTHER DEALINGS IN THE SOFTWARE.

+ *

+ * Except as contained in this notice, the name of the copyright holder(s)

+ * and author(s) shall not be used in advertising or otherwise to promote

+ * the sale, use or other dealings in this Software without prior written

+ * authorization from the copyright holder(s) and author(s).

+ */

+

+#ifdef HAVE_XORG_CONFIG_H

+#include <xorg-config.h>

+#endif

+

+#include <errno.h>

+#include <stdio.h>

+#include <stdlib.h>

+#include <sys/types.h>

+#if defined(UseMMAP) || (defined(linux) && defined(__ia64__))

+#include <sys/mman.h>

+#endif

+#include <unistd.h>

+#include <sys/stat.h>

+#include <fcntl.h>

+#include <string.h>

+#if defined(linux) && \

+    (defined(__alpha__) || defined(__powerpc__) || defined(__ia64__) \

+    || defined(__amd64__))

+#include <malloc.h>

+#endif

+#include <stdarg.h>

+

+#include "os.h"

+#include "loader.h"

+#include "loaderProcs.h"

+#include "xf86.h"

+#include "xf86Priv.h"

+#include "compiler.h"

+

+extern void *xorg_symbols[];

+

+#define MAX_HANDLE 256

+static int refCount[MAX_HANDLE];

+

+static int moduleseq = 0;

+

+/* Prototypes for static functions. */

+static loaderPtr listHead = NULL;

+

+static loaderPtr

+_LoaderListPush(void)

+{

+    loaderPtr item = calloc(1, sizeof(struct _loader));

+

+    item->next = listHead;

+    listHead = item;

+

+    return item;

+}

+

+static loaderPtr

+_LoaderListPop(int handle)

+{

+    loaderPtr item = listHead;

+    loaderPtr *bptr = &listHead;	/* pointer to previous node */

+

+    while (item) {

+	if (item->handle == handle) {

+	    *bptr = item->next;	/* remove this from the list */

+	    return item;

+	}

+	bptr = &(item->next);

+	item = item->next;

+    }

+

+    return 0;

+}

+

+void

+LoaderInit(void)

+{

+    xf86MsgVerb(X_INFO, 2, "Loader magic: %p\n", (void *)xorg_symbols);

+    xf86MsgVerb(X_INFO, 2, "Module ABI versions:\n");

+    xf86ErrorFVerb(2, "\t%s: %d.%d\n", ABI_CLASS_ANSIC,

+		   GET_ABI_MAJOR(LoaderVersionInfo.ansicVersion),

+		   GET_ABI_MINOR(LoaderVersionInfo.ansicVersion));

+    xf86ErrorFVerb(2, "\t%s: %d.%d\n", ABI_CLASS_VIDEODRV,

+		   GET_ABI_MAJOR(LoaderVersionInfo.videodrvVersion),

+		   GET_ABI_MINOR(LoaderVersionInfo.videodrvVersion));

+    xf86ErrorFVerb(2, "\t%s : %d.%d\n", ABI_CLASS_XINPUT,

+		   GET_ABI_MAJOR(LoaderVersionInfo.xinputVersion),

+		   GET_ABI_MINOR(LoaderVersionInfo.xinputVersion));

+    xf86ErrorFVerb(2, "\t%s : %d.%d\n", ABI_CLASS_EXTENSION,

+		   GET_ABI_MAJOR(LoaderVersionInfo.extensionVersion),

+		   GET_ABI_MINOR(LoaderVersionInfo.extensionVersion));

+

+#if defined(__UNIXWARE__) && !defined(__GNUC__)

+    /* For UnixWare we need to load the C Runtime libraries which are

+     * normally auto-linked by the compiler. Otherwise we are bound to

+     * see unresolved symbols when trying to use the type "long long".

+     * Obviously, this does not apply if the GNU C compiler is used.

+     */

+    {

+	int errmaj, errmin, wasLoaded; /* place holders */

+	char *xcrtpath = DEFAULT_MODULE_PATH "/libcrt.a";

+	char *uwcrtpath = "/usr/ccs/lib/libcrt.a";

+	char *path;

+	struct stat st;

+

+	if(stat(xcrtpath, &st) < 0)

+	    path = uwcrtpath; /* fallback: try to get libcrt.a from the uccs */

+	else

+	    path = xcrtpath; /* get the libcrt.a we compiled with */

+	LoaderOpen (path, "libcrt", 0, &errmaj, &errmin, &wasLoaded);

+    }

+#endif

+}

+

+/* Public Interface to the loader. */

+

+int

+LoaderOpen(const char *module, const char *cname, int handle,

+	   int *errmaj, int *errmin, int *wasLoaded, int flags)

+{

+    loaderPtr tmp;

+    int new_handle;

+

+#if defined(DEBUG)

+    ErrorF("LoaderOpen(%s)\n", module);

+#endif

+

+    /* Is the module already loaded? */

+    if (handle >= 0) {

+	tmp = listHead;

+	while (tmp) {

+#ifdef DEBUGLIST

+	    ErrorF("strcmp(%x(%s),{%x} %x(%s))\n", module, module,

+		   &(tmp->name), tmp->name, tmp->name);

+#endif

+	    if (!strcmp(module, tmp->name)) {

+		refCount[tmp->handle]++;

+		if (wasLoaded)

+		    *wasLoaded = 1;

+		xf86MsgVerb(X_INFO, 2, "Reloading %s\n", module);

+		return tmp->handle;

+	    }

+	    tmp = tmp->next;

+	}

+    }

+

+    /*

+     * OK, it's a new one. Add it.

+     */

+    xf86Msg(X_INFO, "Loading %s\n", module);

+    if (wasLoaded)

+	*wasLoaded = 0;

+

+    /*

+     * Find a free handle.

+     */

+    new_handle = 1;

+    while (new_handle < MAX_HANDLE && refCount[new_handle])

+	new_handle++;

+

+    if (new_handle == MAX_HANDLE) {

+	xf86Msg(X_ERROR, "Out of loader space\n");	/* XXX */

+	if (errmaj)

+	    *errmaj = LDR_NOSPACE;

+	if (errmin)

+	    *errmin = LDR_NOSPACE;

+	return -1;

+    }

+

+    refCount[new_handle] = 1;

+

+    tmp = _LoaderListPush();

+    tmp->name = strdup(module);

+    tmp->cname = strdup(cname);

+    tmp->handle = new_handle;

+    tmp->module = moduleseq++;

+

+    if ((tmp->private = DLLoadModule(tmp, flags)) == NULL) {

+	xf86Msg(X_ERROR, "Failed to load %s\n", module);

+	_LoaderListPop(new_handle);

+	refCount[new_handle] = 0;

+	if (errmaj)

+	    *errmaj = LDR_NOLOAD;

+	if (errmin)

+	    *errmin = LDR_NOLOAD;

+	return -1;

+    }

+

+    return new_handle;

+}

+

+int

+LoaderHandleOpen(int handle)

+{

+    if (handle < 0 || handle >= MAX_HANDLE)

+	return -1;

+

+    if (!refCount[handle])

+	return -1;

+

+    refCount[handle]++;

+    return handle;

+}

+

+void *

+LoaderSymbol(const char *sym)

+{

+    return (DLFindSymbol(sym));

+}

+

+int

+LoaderUnload(int handle)

+{

+    loaderRec fakeHead;

+    loaderPtr tmp = &fakeHead;

+

+    if (handle < 0 || handle >= MAX_HANDLE)

+	return -1;

+

+    /*

+     * check the reference count, only free it if it goes to zero

+     */

+    if (--refCount[handle])

+	return 0;

+    /*

+     * find the loaderRecs associated with this handle.

+     */

+

+    while ((tmp = _LoaderListPop(handle)) != NULL) {

+	xf86Msg(X_INFO, "Unloading %s\n", tmp->name);

+	DLUnloadModule(tmp->private);

+	free(tmp->name);

+	free(tmp->cname);

+	free(tmp);

+    }

+

+    return 0;

+}

+

+unsigned long LoaderOptions = 0;

+

+void

+LoaderSetOptions(unsigned long opts)

+{

+    LoaderOptions |= opts;

+}

+

+Bool

+LoaderShouldIgnoreABI(void)

+{

+    return (LoaderOptions & LDR_OPT_ABI_MISMATCH_NONFATAL) != 0;

+}

+

+int

+LoaderGetABIVersion(const char *abiclass)

+{

+    struct {

+        const char *name;

+        int version;

+    } classes[] = {

+        { ABI_CLASS_ANSIC,     LoaderVersionInfo.ansicVersion },

+        { ABI_CLASS_VIDEODRV,  LoaderVersionInfo.videodrvVersion },

+        { ABI_CLASS_XINPUT,    LoaderVersionInfo.xinputVersion },

+        { ABI_CLASS_EXTENSION, LoaderVersionInfo.extensionVersion },

+        { ABI_CLASS_FONT,      LoaderVersionInfo.fontVersion },

+        { NULL,                0 }

+    };

+    int i;

+

+    for(i = 0; classes[i].name; i++) {

+        if(!strcmp(classes[i].name, abiclass)) {

+            return classes[i].version;

+        }

+    }

+

+    return 0;

+}