XPCDebug.cpp (1653B)
1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ 2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */ 3 /* This Source Code Form is subject to the terms of the Mozilla Public 4 * License, v. 2.0. If a copy of the MPL was not distributed with this 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 6 7 #include "xpcprivate.h" 8 #include "js/friend/DumpFunctions.h" // JS::FormatStackDump 9 #include "nsThreadUtils.h" 10 #include "nsContentUtils.h" 11 12 #include "mozilla/Sprintf.h" 13 14 #ifdef XP_WIN 15 # include <windows.h> 16 # include "nsPrintfCString.h" 17 #endif 18 19 #ifdef ANDROID 20 # include <android/log.h> 21 #endif 22 23 static void DebugDump(const char* str) { 24 #ifdef XP_WIN 25 if (IsDebuggerPresent()) { 26 nsPrintfCString output("%s\n", str); 27 OutputDebugStringA(output.get()); 28 } 29 #elif defined(ANDROID) 30 __android_log_print(ANDROID_LOG_DEBUG, "Gecko", "%s\n", str); 31 #endif 32 printf("%s\n", str); 33 } 34 35 bool xpc_DumpJSStack(bool showArgs, bool showLocals, bool showThisProps) { 36 JSContext* cx = nsContentUtils::GetCurrentJSContext(); 37 if (!cx) { 38 printf("there is no JSContext on the stack!\n"); 39 } else if (JS::UniqueChars buf = 40 xpc_PrintJSStack(cx, showArgs, showLocals, showThisProps)) { 41 DebugDump(buf.get()); 42 } 43 return true; 44 } 45 46 JS::UniqueChars xpc_PrintJSStack(JSContext* cx, bool showArgs, bool showLocals, 47 bool showThisProps) { 48 JS::AutoSaveExceptionState state(cx); 49 50 JS::UniqueChars buf = 51 JS::FormatStackDump(cx, showArgs, showLocals, showThisProps); 52 if (!buf) { 53 DebugDump("Failed to format JavaScript stack for dump"); 54 } 55 56 state.restore(); 57 return buf; 58 }