1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
// Copyright 2016 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "src/assembler-inl.h"
#include "src/trap-handler/trap-handler.h"
#include "src/wasm/wasm-macro-gen.h"
#include "test/cctest/cctest.h"
#include "test/cctest/compiler/value-helper.h"
#include "test/cctest/wasm/wasm-run-utils.h"
#include "test/common/wasm/test-signatures.h"
using namespace v8::base;
using namespace v8::internal;
using namespace v8::internal::compiler;
using namespace v8::internal::wasm;
using v8::Local;
using v8::Utils;
namespace {
#define CHECK_CSTREQ(exp, found) \
do { \
const char* exp_ = (exp); \
const char* found_ = (found); \
DCHECK_NOT_NULL(exp); \
if (V8_UNLIKELY(found_ == nullptr || strcmp(exp_, found_) != 0)) { \
V8_Fatal(__FILE__, __LINE__, \
"Check failed: (%s) != (%s) ('%s' vs '%s').", #exp, #found, \
exp_, found_ ? found_ : "<null>"); \
} \
} while (0)
struct ExceptionInfo {
const char* func_name;
int line_nr;
int column;
};
template <int N>
void CheckExceptionInfos(Handle<Object> exc,
const ExceptionInfo (&excInfos)[N]) {
// Check that it's indeed an Error object.
CHECK(exc->IsJSError());
exc->Print();
// Extract stack frame from the exception.
Local<v8::Value> localExc = Utils::ToLocal(exc);
v8::Local<v8::StackTrace> stack = v8::Exception::GetStackTrace(localExc);
CHECK(!stack.IsEmpty());
CHECK_EQ(N, stack->GetFrameCount());
for (int frameNr = 0; frameNr < N; ++frameNr) {
v8::Local<v8::StackFrame> frame = stack->GetFrame(frameNr);
v8::String::Utf8Value funName(frame->GetFunctionName());
CHECK_CSTREQ(excInfos[frameNr].func_name, *funName);
CHECK_EQ(excInfos[frameNr].line_nr, frame->GetLineNumber());
CHECK_EQ(excInfos[frameNr].column, frame->GetColumn());
}
}
} // namespace
// Trigger a trap for executing unreachable.
TEST(Unreachable) {
WasmRunner<void> r(kExecuteCompiled);
TestSignatures sigs;
// Set the execution context, such that a runtime error can be thrown.
r.SetModuleContext();
BUILD(r, WASM_UNREACHABLE);
uint32_t wasm_index = r.function()->func_index;
Handle<JSFunction> js_wasm_wrapper = r.module().WrapCode(wasm_index);
Handle<JSFunction> js_trampoline = Handle<JSFunction>::cast(
v8::Utils::OpenHandle(*v8::Local<v8::Function>::Cast(
CompileRun("(function callFn(fn) { fn(); })"))));
Isolate* isolate = js_wasm_wrapper->GetIsolate();
isolate->SetCaptureStackTraceForUncaughtExceptions(true, 10,
v8::StackTrace::kOverview);
Handle<Object> global(isolate->context()->global_object(), isolate);
MaybeHandle<Object> maybe_exc;
Handle<Object> args[] = {js_wasm_wrapper};
MaybeHandle<Object> returnObjMaybe =
Execution::TryCall(isolate, js_trampoline, global, 1, args,
Execution::MessageHandling::kReport, &maybe_exc);
CHECK(returnObjMaybe.is_null());
// Line and column are 1-based, so add 1 for the expected wasm output.
ExceptionInfo expected_exceptions[] = {
{"main", static_cast<int>(wasm_index) + 1, 2}, // --
{"callFn", 1, 24} // --
};
CheckExceptionInfos(maybe_exc.ToHandleChecked(), expected_exceptions);
}
// Trigger a trap for loading from out-of-bounds.
TEST(IllegalLoad) {
WasmRunner<void> r(kExecuteCompiled);
TestSignatures sigs;
// Set the execution context, such that a runtime error can be thrown.
r.SetModuleContext();
r.module().AddMemory(0L);
BUILD(r, WASM_IF(WASM_ONE, WASM_SEQ(WASM_LOAD_MEM(MachineType::Int32(),
WASM_I32V_1(-3)),
WASM_DROP)));
uint32_t wasm_index_1 = r.function()->func_index;
WasmFunctionCompiler& f2 = r.NewFunction<void>("call_main");
// Insert a NOP such that the position of the call is not one.
BUILD(f2, WASM_NOP, WASM_CALL_FUNCTION0(wasm_index_1));
uint32_t wasm_index_2 = f2.function_index();
Handle<JSFunction> js_wasm_wrapper = r.module().WrapCode(wasm_index_2);
Handle<JSFunction> js_trampoline = Handle<JSFunction>::cast(
v8::Utils::OpenHandle(*v8::Local<v8::Function>::Cast(
CompileRun("(function callFn(fn) { fn(); })"))));
Isolate* isolate = js_wasm_wrapper->GetIsolate();
isolate->SetCaptureStackTraceForUncaughtExceptions(true, 10,
v8::StackTrace::kOverview);
Handle<Object> global(isolate->context()->global_object(), isolate);
MaybeHandle<Object> maybe_exc;
Handle<Object> args[] = {js_wasm_wrapper};
MaybeHandle<Object> returnObjMaybe =
Execution::TryCall(isolate, js_trampoline, global, 1, args,
Execution::MessageHandling::kReport, &maybe_exc);
CHECK(returnObjMaybe.is_null());
// Line and column are 1-based, so add 1 for the expected wasm output.
ExceptionInfo expected_exceptions[] = {
{"main", static_cast<int>(wasm_index_1) + 1, 8}, // --
{"call_main", static_cast<int>(wasm_index_2) + 1, 3}, // --
{"callFn", 1, 24} // --
};
CheckExceptionInfos(maybe_exc.ToHandleChecked(), expected_exceptions);
}
|
