1 // Copyright 2006-2008 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are
4 // met:
5 //
6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided
11 // with the distribution.
12 // * Neither the name of Google Inc. nor the names of its
13 // contributors may be used to endorse or promote products derived
14 // from this software without specific prior written permission.
15 //
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
28 #include <stdarg.h>
29
30 #include "v8.h"
31
32 #include "platform.h"
33
34 // TODO(isolates): is it necessary to lift this?
35 static int fatal_error_handler_nesting_depth = 0;
36
37 // Contains protection against recursive calls (faults while handling faults).
V8_Fatal(const char * file,int line,const char * format,...)38 extern "C" void V8_Fatal(const char* file, int line, const char* format, ...) {
39 fflush(stdout);
40 fflush(stderr);
41 fatal_error_handler_nesting_depth++;
42 // First time we try to print an error message
43 if (fatal_error_handler_nesting_depth < 2) {
44 i::OS::PrintError("\n\n#\n# Fatal error in %s, line %d\n# ", file, line);
45 va_list arguments;
46 va_start(arguments, format);
47 i::OS::VPrintError(format, arguments);
48 va_end(arguments);
49 i::OS::PrintError("\n#\n\n");
50 }
51 // First two times we may try to print a stack dump.
52 if (fatal_error_handler_nesting_depth < 3) {
53 if (i::FLAG_stack_trace_on_abort) {
54 // Call this one twice on double fault
55 i::Isolate::Current()->PrintStack();
56 }
57 }
58 i::OS::Abort();
59 }
60
61
CheckEqualsHelper(const char * file,int line,const char * expected_source,v8::Handle<v8::Value> expected,const char * value_source,v8::Handle<v8::Value> value)62 void CheckEqualsHelper(const char* file,
63 int line,
64 const char* expected_source,
65 v8::Handle<v8::Value> expected,
66 const char* value_source,
67 v8::Handle<v8::Value> value) {
68 if (!expected->Equals(value)) {
69 v8::String::Utf8Value value_str(value);
70 v8::String::Utf8Value expected_str(expected);
71 V8_Fatal(file, line,
72 "CHECK_EQ(%s, %s) failed\n# Expected: %s\n# Found: %s",
73 expected_source, value_source, *expected_str, *value_str);
74 }
75 }
76
77
CheckNonEqualsHelper(const char * file,int line,const char * unexpected_source,v8::Handle<v8::Value> unexpected,const char * value_source,v8::Handle<v8::Value> value)78 void CheckNonEqualsHelper(const char* file,
79 int line,
80 const char* unexpected_source,
81 v8::Handle<v8::Value> unexpected,
82 const char* value_source,
83 v8::Handle<v8::Value> value) {
84 if (unexpected->Equals(value)) {
85 v8::String::Utf8Value value_str(value);
86 V8_Fatal(file, line, "CHECK_NE(%s, %s) failed\n# Value: %s",
87 unexpected_source, value_source, *value_str);
88 }
89 }
90
91
API_Fatal(const char * location,const char * format,...)92 void API_Fatal(const char* location, const char* format, ...) {
93 i::OS::PrintError("\n#\n# Fatal error in %s\n# ", location);
94 va_list arguments;
95 va_start(arguments, format);
96 i::OS::VPrintError(format, arguments);
97 va_end(arguments);
98 i::OS::PrintError("\n#\n\n");
99 i::OS::Abort();
100 }
101
102
103 namespace v8 { namespace internal {
104
EnableSlowAsserts()105 bool EnableSlowAsserts() { return FLAG_enable_slow_asserts; }
106
HeapObjectTagMask()107 intptr_t HeapObjectTagMask() { return kHeapObjectTagMask; }
108
109 } } // namespace v8::internal
110
111