src/checks.cc
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00001 // Copyright 2006-2008 the V8 project authors. All rights reserved. 00002 // Redistribution and use in source and binary forms, with or without 00003 // modification, are permitted provided that the following conditions are 00004 // met: 00005 // 00006 // * Redistributions of source code must retain the above copyright 00007 // notice, this list of conditions and the following disclaimer. 00008 // * Redistributions in binary form must reproduce the above 00009 // copyright notice, this list of conditions and the following 00010 // disclaimer in the documentation and/or other materials provided 00011 // with the distribution. 00012 // * Neither the name of Google Inc. nor the names of its 00013 // contributors may be used to endorse or promote products derived 00014 // from this software without specific prior written permission. 00015 // 00016 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 00017 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 00018 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 00019 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 00020 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 00021 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 00022 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 00023 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 00024 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 00025 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 00026 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00027 00028 #include <stdarg.h> 00029 00030 #include "v8.h" 00031 00032 #include "platform.h" 00033 #include "top.h" 00034 00035 using namespace v8::internal; 00036 00037 static int fatal_error_handler_nesting_depth = 0; 00038 00039 // Contains protection against recursive calls (faults while handling faults). 00040 extern "C" void V8_Fatal(const char* file, int line, const char* format, ...) { 00041 fatal_error_handler_nesting_depth++; 00042 // First time we try to print an error message 00043 if (fatal_error_handler_nesting_depth < 2) { 00044 OS::PrintError("\n\n#\n# Fatal error in %s, line %d\n# ", file, line); 00045 va_list arguments; 00046 va_start(arguments, format); 00047 OS::VPrintError(format, arguments); 00048 va_end(arguments); 00049 OS::PrintError("\n#\n\n"); 00050 } 00051 // First two times we may try to print a stack dump. 00052 if (fatal_error_handler_nesting_depth < 3) { 00053 if (FLAG_stack_trace_on_abort) { 00054 // Call this one twice on double fault 00055 Top::PrintStack(); 00056 } 00057 } 00058 OS::Abort(); 00059 } 00060 00061 00062 void CheckEqualsHelper(const char* file, 00063 int line, 00064 const char* expected_source, 00065 v8::Handle<v8::Value> expected, 00066 const char* value_source, 00067 v8::Handle<v8::Value> value) { 00068 if (!expected->Equals(value)) { 00069 v8::String::Utf8Value value_str(value); 00070 v8::String::Utf8Value expected_str(expected); 00071 V8_Fatal(file, line, 00072 "CHECK_EQ(%s, %s) failed\n# Expected: %s\n# Found: %s", 00073 expected_source, value_source, *expected_str, *value_str); 00074 } 00075 } 00076 00077 00078 void CheckNonEqualsHelper(const char* file, 00079 int line, 00080 const char* unexpected_source, 00081 v8::Handle<v8::Value> unexpected, 00082 const char* value_source, 00083 v8::Handle<v8::Value> value) { 00084 if (unexpected->Equals(value)) { 00085 v8::String::Utf8Value value_str(value); 00086 V8_Fatal(file, line, "CHECK_NE(%s, %s) failed\n# Value: %s", 00087 unexpected_source, value_source, *value_str); 00088 } 00089 } 00090 00091 00092 void API_Fatal(const char* location, const char* format, ...) { 00093 OS::PrintError("\n#\n# Fatal error in %s\n# ", location); 00094 va_list arguments; 00095 va_start(arguments, format); 00096 OS::VPrintError(format, arguments); 00097 va_end(arguments); 00098 OS::PrintError("\n#\n\n"); 00099 OS::Abort(); 00100 }
