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1 // Copyright 2016 the V8 project authors. All rights reserved. | 1 // Copyright 2016 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // Flags: --expose-wasm | 5 // Flags: --expose-wasm |
6 | 6 |
7 load("test/mjsunit/wasm/wasm-constants.js"); | 7 load("test/mjsunit/wasm/wasm-constants.js"); |
8 load("test/mjsunit/wasm/wasm-module-builder.js"); | 8 load("test/mjsunit/wasm/wasm-module-builder.js"); |
9 | 9 |
10 // Collect the Callsite objects instead of just a string: | 10 // Collect the Callsite objects instead of just a string: |
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23 // unreachable; | 23 // unreachable; |
24 // } else { | 24 // } else { |
25 // return call_indirect(idx); | 25 // return call_indirect(idx); |
26 // } | 26 // } |
27 // There are four different traps which are triggered by different input values: | 27 // There are four different traps which are triggered by different input values: |
28 // (0) division by zero; (1) mem oob; (2) unreachable; (3) invalid call target | 28 // (0) division by zero; (1) mem oob; (2) unreachable; (3) invalid call target |
29 // Each of them also has a different location where it traps. | 29 // Each of them also has a different location where it traps. |
30 builder.addFunction("main", kSig_i_i) | 30 builder.addFunction("main", kSig_i_i) |
31 .addBody([ | 31 .addBody([ |
32 // offset 1 | 32 // offset 1 |
33 kExprBlock, | 33 kExprBlock, kAstI32, |
34 kExprGetLocal, 0, | 34 kExprGetLocal, 0, |
35 kExprI32Const, 2, | 35 kExprI32Const, 2, |
36 kExprI32LtU, | 36 kExprI32LtU, |
37 kExprIf, | 37 kExprIf, kAstStmt, |
38 // offset 8 | 38 // offset 9 |
39 kExprI32Const, 0x7e /* -2 */, | 39 kExprI32Const, 0x7e /* -2 */, |
40 kExprGetLocal, 0, | 40 kExprGetLocal, 0, |
41 kExprI32DivU, | 41 kExprI32DivU, |
42 // offset 13 | 42 // offset 15 |
43 kExprI32LoadMem, 0, 0, | 43 kExprI32LoadMem, 0, 0, |
44 kExprBr, 1, 1, | 44 kExprBr, 1, |
45 kExprEnd, | 45 kExprEnd, |
46 // offset 20 | 46 // offset 21 |
47 kExprGetLocal, 0, | 47 kExprGetLocal, 0, |
48 kExprI32Const, 2, | 48 kExprI32Const, 2, |
49 kExprI32Eq, | 49 kExprI32Eq, |
50 kExprIf, | 50 kExprIf, kAstStmt, |
51 kExprUnreachable, | 51 kExprUnreachable, |
52 kExprEnd, | 52 kExprEnd, |
53 // offset 28 | 53 // offset 30 |
54 kExprGetLocal, 0, | 54 kExprGetLocal, 0, |
55 kExprCallIndirect, kArity0, sig_index, | 55 kExprCallIndirect, sig_index, |
56 kExprEnd, | 56 kExprEnd, |
57 ]) | 57 ]) |
58 .exportAs("main"); | 58 .exportAs("main"); |
59 | 59 |
60 var module = builder.instantiate(); | 60 var module = builder.instantiate(); |
61 | 61 |
62 function testWasmTrap(value, reason, position) { | 62 function testWasmTrap(value, reason, position) { |
63 try { | 63 try { |
64 module.exports.main(value); | 64 module.exports.main(value); |
65 fail("expected wasm exception"); | 65 fail("expected wasm exception"); |
66 } catch (e) { | 66 } catch (e) { |
67 assertEquals(kTrapMsgs[reason], e.message, "trap reason"); | 67 assertEquals(kTrapMsgs[reason], e.message, "trap reason"); |
68 assertEquals(3, e.stack.length, "number of frames"); | 68 assertEquals(3, e.stack.length, "number of frames"); |
69 assertEquals(0, e.stack[0].getLineNumber(), "wasmFunctionIndex"); | 69 assertEquals(0, e.stack[0].getLineNumber(), "wasmFunctionIndex"); |
70 assertEquals(position, e.stack[0].getPosition(), "position"); | 70 assertEquals(position, e.stack[0].getPosition(), "position"); |
71 } | 71 } |
72 } | 72 } |
73 | 73 |
74 // The actual tests: | 74 // The actual tests: |
75 testWasmTrap(0, kTrapDivByZero, 12); | 75 testWasmTrap(0, kTrapDivByZero, 14); |
76 testWasmTrap(1, kTrapMemOutOfBounds, 13); | 76 testWasmTrap(1, kTrapMemOutOfBounds, 15); |
77 testWasmTrap(2, kTrapUnreachable, 26); | 77 testWasmTrap(2, kTrapUnreachable, 28); |
78 testWasmTrap(3, kTrapFuncInvalid, 30); | 78 testWasmTrap(3, kTrapFuncInvalid, 32); |
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