mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
215 lines
7.4 KiB
C++
215 lines
7.4 KiB
C++
/* -*- Mode: C++; tab-width: 40; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
|
* 1.1 (the "License"); you may not use this file except in compliance with
|
|
* the License. You may obtain a copy of the License at
|
|
* http://www.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the
|
|
* License.
|
|
*
|
|
* The Original Code is mozilla.org code.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* the Mozilla Foundation <http://www.mozilla.org/>
|
|
* Portions created by the Initial Developer are Copyright (C) 2010
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
* Karl Tomlinson <karlt+@karlt.net>
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either the GNU General Public License Version 2 or later (the "GPL"), or
|
|
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
* use your version of this file under the terms of the MPL, indicate your
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this file under
|
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
#include "nsX11ErrorHandler.h"
|
|
|
|
#include "mozilla/plugins/PluginProcessChild.h"
|
|
using mozilla::plugins::PluginProcessChild;
|
|
|
|
#include "prenv.h"
|
|
#include "nsXULAppAPI.h"
|
|
#include "nsExceptionHandler.h"
|
|
#include "nsDebug.h"
|
|
|
|
#include "mozilla/X11Util.h"
|
|
#include <X11/Xlib.h>
|
|
|
|
#define BUFSIZE 2048 // What Xlib uses with XGetErrorDatabaseText
|
|
|
|
extern "C" {
|
|
static int
|
|
X11Error(Display *display, XErrorEvent *event) {
|
|
// Get an indication of how long ago the request that caused the error was
|
|
// made.
|
|
unsigned long age = NextRequest(display) - event->serial;
|
|
|
|
// Get a string to represent the request that caused the error.
|
|
nsCAutoString message;
|
|
if (event->request_code < 128) {
|
|
// Core protocol request
|
|
message.AppendInt(event->request_code);
|
|
} else {
|
|
// Extension request
|
|
|
|
// man XSetErrorHandler says "the error handler should not call any
|
|
// functions (directly or indirectly) on the display that will generate
|
|
// protocol requests or that will look for input events" so we use another
|
|
// temporary Display to request extension information. This assumes on
|
|
// the DISPLAY environment variable has been set and matches what was used
|
|
// to open |display|.
|
|
Display *tmpDisplay = XOpenDisplay(NULL);
|
|
if (tmpDisplay) {
|
|
int nExts;
|
|
char** extNames = XListExtensions(tmpDisplay, &nExts);
|
|
int first_error;
|
|
if (extNames) {
|
|
for (int i = 0; i < nExts; ++i) {
|
|
int major_opcode, first_event;
|
|
if (XQueryExtension(tmpDisplay, extNames[i],
|
|
&major_opcode, &first_event, &first_error)
|
|
&& major_opcode == event->request_code) {
|
|
message.Append(extNames[i]);
|
|
message.Append('.');
|
|
message.AppendInt(event->minor_code);
|
|
break;
|
|
}
|
|
}
|
|
|
|
XFreeExtensionList(extNames);
|
|
}
|
|
XCloseDisplay(tmpDisplay);
|
|
|
|
#ifdef MOZ_WIDGET_GTK2
|
|
// GDK2 calls XCloseDevice the devices that it opened on startup, but
|
|
// the XI protocol no longer ensures that the devices will still exist.
|
|
// If they have been removed, then a BadDevice error results. Ignore
|
|
// this error.
|
|
if (message.EqualsLiteral("XInputExtension.4") &&
|
|
event->error_code == first_error + 0) {
|
|
return 0;
|
|
}
|
|
#endif
|
|
}
|
|
}
|
|
|
|
char buffer[BUFSIZE];
|
|
if (message.IsEmpty()) {
|
|
buffer[0] = '\0';
|
|
} else {
|
|
XGetErrorDatabaseText(display, "XRequest", message.get(), "",
|
|
buffer, sizeof(buffer));
|
|
}
|
|
|
|
nsCAutoString notes;
|
|
if (buffer[0]) {
|
|
notes.Append(buffer);
|
|
} else {
|
|
notes.Append("Request ");
|
|
notes.AppendInt(event->request_code);
|
|
notes.Append('.');
|
|
notes.AppendInt(event->minor_code);
|
|
}
|
|
|
|
notes.Append(": ");
|
|
|
|
// Get a string to describe the error.
|
|
XGetErrorText(display, event->error_code, buffer, sizeof(buffer));
|
|
notes.Append(buffer);
|
|
|
|
// For requests where Xlib gets the reply synchronously, |age| will be 1
|
|
// and the stack will include the function making the request. For
|
|
// asynchronous requests, the current stack will often be unrelated to the
|
|
// point of making the request, even if |age| is 1, but sometimes this may
|
|
// help us count back to the point of the request. With XSynchronize on,
|
|
// the stack will include the function making the request, even though
|
|
// |age| will be 2 for asynchronous requests because XSynchronize is
|
|
// implemented by an empty request from an XSync, which has not yet been
|
|
// processed.
|
|
if (age > 1) {
|
|
// XSynchronize returns the previous "after function". If a second
|
|
// XSynchronize call returns the same function after an enable call then
|
|
// synchronization must have already been enabled.
|
|
if (XSynchronize(display, True) == XSynchronize(display, False)) {
|
|
notes.Append("; sync");
|
|
} else {
|
|
notes.Append("; ");
|
|
notes.AppendInt(PRUint32(age));
|
|
notes.Append(" requests ago");
|
|
}
|
|
}
|
|
|
|
#ifdef MOZ_CRASHREPORTER
|
|
switch (XRE_GetProcessType()) {
|
|
case GeckoProcessType_Default:
|
|
CrashReporter::AppendAppNotesToCrashReport(notes);
|
|
break;
|
|
case GeckoProcessType_Plugin:
|
|
if (CrashReporter::GetEnabled()) {
|
|
// This is assuming that X operations are performed on the plugin
|
|
// thread. If plugins are using X on another thread, then we'll need to
|
|
// handle that differently.
|
|
PluginProcessChild::AppendNotesToCrashReport(notes);
|
|
}
|
|
break;
|
|
default:
|
|
; // crash report notes not supported.
|
|
}
|
|
#endif
|
|
|
|
#ifdef DEBUG
|
|
// The resource id is unlikely to be useful in a crash report without
|
|
// context of other ids, but add it to the debug console output.
|
|
notes.Append("; id=0x");
|
|
notes.AppendInt(PRUint32(event->resourceid), 16);
|
|
#ifdef MOZ_X11
|
|
// Actually, for requests where Xlib gets the reply synchronously,
|
|
// MOZ_X_SYNC=1 will not be necessary, but we don't have a table to tell us
|
|
// which requests get a synchronous reply.
|
|
if (!PR_GetEnv("MOZ_X_SYNC")) {
|
|
notes.Append("\nRe-running with MOZ_X_SYNC=1 in the environment may give a more helpful backtrace.");
|
|
}
|
|
#endif
|
|
#endif
|
|
|
|
#ifdef MOZ_WIDGET_QT
|
|
// We should not abort here if MOZ_X_SYNC is not set
|
|
// until http://bugreports.qt.nokia.com/browse/QTBUG-4042
|
|
// not fixed, just print error value
|
|
if (!PR_GetEnv("MOZ_X_SYNC")) {
|
|
fprintf(stderr, "XError: %s\n", notes.get());
|
|
return 0; // temporary workaround for bug 161472
|
|
}
|
|
#endif
|
|
|
|
NS_RUNTIMEABORT(notes.get());
|
|
return 0; // not reached
|
|
}
|
|
}
|
|
|
|
void
|
|
InstallX11ErrorHandler()
|
|
{
|
|
XSetErrorHandler(X11Error);
|
|
|
|
Display *display = mozilla::DefaultXDisplay();
|
|
NS_ASSERTION(display, "No X display");
|
|
if (PR_GetEnv("MOZ_X_SYNC")) {
|
|
XSynchronize(display, True);
|
|
}
|
|
}
|