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|
const RuntimeError = WebAssembly.RuntimeError;
function loadModuleSrc(type, ext, offset, align, drop = false) {
let maybeResult = drop ? '' : `(result ${type})`;
let maybeDrop = drop ? 'drop' : '';
return `(module
(memory 1)
(data (i32.const 0) "\\00\\01\\02\\03\\04\\05\\06\\07\\08\\09\\0a\\0b\\0c\\0d\\0e\\0f")
(data (i32.const 16) "\\f0\\f1\\f2\\f3\\f4\\f5\\f6\\f7\\f8\\f9\\fa\\fb\\fc\\fd\\fe\\ff")
(func $load (param i32) ${maybeResult}
(${type}.load${ext}
offset=${offset}
${align != 0 ? 'align=' + align : ''}
(local.get 0)
)
${maybeDrop}
) (export "" (func 0)))`;
}
function loadModule(type, ext, offset, align, drop = false) {
return wasmEvalText(loadModuleSrc(type, ext, offset, align, drop)).exports[""];
}
function storeModuleSrc(type, ext, offset, align) {
var load_ext = ext === '' ? '' : ext + '_s';
return `(module
(memory 1)
(data (i32.const 0) "\\00\\01\\02\\03\\04\\05\\06\\07\\08\\09\\0a\\0b\\0c\\0d\\0e\\0f")
(data (i32.const 16) "\\f0\\f1\\f2\\f3\\f4\\f5\\f6\\f7\\f8\\f9\\fa\\fb\\fc\\fd\\fe\\ff")
(func $store (param i32) (param ${type})
(${type}.store${ext}
offset=${offset}
${align != 0 ? 'align=' + align : ''}
(local.get 0)
(local.get 1)
)
) (export "store" (func 0))
(func $load (param i32) (result ${type})
(${type}.load${load_ext}
offset=${offset}
${align != 0 ? 'align=' + align : ''}
(local.get 0)
)
) (export "load" (func 1)))`;
}
function storeModule(type, ext, offset, align) {
return wasmEvalText(storeModuleSrc(type, ext, offset, align)).exports;
}
function storeModuleCstSrc(type, ext, offset, align, value) {
var load_ext = ext === '' ? '' : ext + '_s';
return `(module
(memory 1)
(data (i32.const 0) "\\00\\01\\02\\03\\04\\05\\06\\07\\08\\09\\0a\\0b\\0c\\0d\\0e\\0f")
(data (i32.const 16) "\\f0\\f1\\f2\\f3\\f4\\f5\\f6\\f7\\f8\\f9\\fa\\fb\\fc\\fd\\fe\\ff")
(func $store (param i32)
(${type}.store${ext}
offset=${offset}
${align != 0 ? 'align=' + align : ''}
(local.get 0)
(${type}.const ${value})
)
) (export "store" (func 0))
(func $load (param i32) (result ${type})
(${type}.load${load_ext}
offset=${offset}
${align != 0 ? 'align=' + align : ''}
(local.get 0)
)
) (export "load" (func 1)))`;
}
function storeModuleCst(type, ext, offset, align, value) {
return wasmEvalText(storeModuleCstSrc(type, ext, offset, align, value)).exports;
}
function testLoad(type, ext, base, offset, align, expect) {
if (type === 'i64') {
wasmAssert(loadModuleSrc(type, ext, offset, align), [{
type,
func: '$load',
expected: expect,
args: [`i32.const ${base}`]
}]);
}
else {
assertEq(loadModule(type, ext, offset, align)(base), expect);
}
}
function testLoadOOB(type, ext, base, offset, align) {
assertErrorMessage(() => loadModule(type, ext, offset, align, /*drop*/ true)(base), RuntimeError, /index out of bounds/);
}
function testStore(type, ext, base, offset, align, value) {
if (type === 'i64') {
wasmAssert(storeModuleSrc(type, ext, offset, align), [
{type, func: '$store', args: [`i32.const ${base}`, `i64.const ${value}`]},
{type, func: '$load', args: [`i32.const ${base}`], expected: value},
]);
wasmAssert(storeModuleCstSrc(type, ext, offset, align, value), [
{type, func: '$store', args: [`i32.const ${base}`]},
{type, func: '$load', args: [`i32.const ${base}`], expected: value},
]);
} else {
let module = storeModule(type, ext, offset, align);
let moduleCst = storeModuleCst(type, ext, offset, align, value);
module.store(base, value);
assertEq(module.load(base), value);
moduleCst.store(base);
assertEq(moduleCst.load(base), value);
}
}
function testStoreOOB(type, ext, base, offset, align, value) {
if (type === 'i64') {
assertErrorMessage(() => wasmAssert(
storeModuleSrc(type, ext, offset, align),
[{type, func: '$store', args: [`i32.const ${base}`, `i64.const ${value}`]}]
), RuntimeError, /index out of bounds/);
} else {
assertErrorMessage(() => storeModule(type, ext, offset, align).store(base, value), RuntimeError, /index out of bounds/);
}
}
function badLoadModule(type, ext) {
wasmFailValidateText( `(module (func (param i32) (${type}.load${ext} (local.get 0))) (export "" (func 0)))`, /(can't touch memory)|(unknown memory 0)/);
}
function badStoreModule(type, ext) {
wasmFailValidateText(`(module (func (param i32) (${type}.store${ext} (local.get 0) (${type}.const 0))) (export "" (func 0)))`, /(can't touch memory)|(unknown memory 0)/);
}
// Can't touch memory.
for (let [type, ext] of [
['i32', ''],
['i32', '8_s'],
['i32', '8_u'],
['i32', '16_s'],
['i32', '16_u'],
['i64', ''],
['i64', '8_s'],
['i64', '8_u'],
['i64', '16_s'],
['i64', '16_u'],
['i64', '32_s'],
['i64', '32_u'],
['f32', ''],
['f64', ''],
])
{
badLoadModule(type, ext);
}
for (let [type, ext] of [
['i32', ''],
['i32', '8'],
['i32', '16'],
['i64', ''],
['i64', '8'],
['i64', '16'],
['i64', '32'],
['f32', ''],
['f64', ''],
])
{
badStoreModule(type, ext);
}
assertEq(getJitCompilerOptions()['wasm.fold-offsets'], 1);
for (var foldOffsets = 0; foldOffsets <= 1; foldOffsets++) {
setJitCompilerOption('wasm.fold-offsets', foldOffsets | 0);
testLoad('i32', '', 0, 0, 0, 0x03020100);
testLoad('i32', '', 1, 0, 1, 0x04030201);
testLoad('i32', '', 0, 4, 0, 0x07060504);
testLoad('i32', '', 1, 3, 4, 0x07060504);
testLoad('f32', '', 0, 0, 0, 3.820471434542632e-37);
testLoad('f32', '', 1, 0, 1, 1.539989614439558e-36);
testLoad('f32', '', 0, 4, 0, 1.0082513512365273e-34);
testLoad('f32', '', 1, 3, 4, 1.0082513512365273e-34);
testLoad('f64', '', 0, 0, 0, 7.949928895127363e-275);
testLoad('f64', '', 1, 0, 1, 5.447603722011605e-270);
testLoad('f64', '', 0, 8, 0, 3.6919162048650923e-236);
testLoad('f64', '', 1, 7, 8, 3.6919162048650923e-236);
testLoad('i32', '8_s', 16, 0, 0, -0x10);
testLoad('i32', '8_u', 16, 0, 0, 0xf0);
testLoad('i32', '16_s', 16, 0, 0, -0xe10);
testLoad('i32', '16_u', 16, 0, 0, 0xf1f0);
testStore('i32', '', 0, 0, 0, -0x3f3e2c2c);
testStore('i32', '', 1, 0, 1, -0x3f3e2c2c);
testStore('i32', '', 0, 1, 1, -0x3f3e2c2c);
testStore('i32', '', 1, 1, 4, -0x3f3e2c2c);
testStore('f32', '', 0, 0, 0, 0.01234566979110241);
testStore('f32', '', 1, 0, 1, 0.01234566979110241);
testStore('f32', '', 0, 4, 0, 0.01234566979110241);
testStore('f32', '', 1, 3, 4, 0.01234566979110241);
testStore('f64', '', 0, 0, 0, 0.89012345);
testStore('f64', '', 1, 0, 1, 0.89012345);
testStore('f64', '', 0, 8, 0, 0.89012345);
testStore('f64', '', 1, 7, 8, 0.89012345);
testStore('i32', '8', 0, 0, 0, 0x23);
testStore('i32', '16', 0, 0, 0, 0x2345);
wasmFailValidateText('(module (memory 2 1))', /maximum length 1 is less than initial length 2/);
// Test bounds checks and edge cases.
for (let align of [0,1,2,4]) {
for (let offset of [0, 1, 2, 3, 4, 8, 16, 41, 0xfff8]) {
// Accesses of 1 byte.
let lastValidIndex = 0x10000 - 1 - offset;
if (align < 2) {
testLoad('i32', '8_s', lastValidIndex, offset, align, 0);
testLoadOOB('i32', '8_s', lastValidIndex + 1, offset, align);
testLoad('i32', '8_u', lastValidIndex, offset, align, 0);
testLoadOOB('i32', '8_u', lastValidIndex + 1, offset, align);
testStore('i32', '8', lastValidIndex, offset, align, -42);
testStoreOOB('i32', '8', lastValidIndex + 1, offset, align, -42);
}
// Accesses of 2 bytes.
lastValidIndex = 0x10000 - 2 - offset;
if (align < 4) {
testLoad('i32', '16_s', lastValidIndex, offset, align, 0);
testLoadOOB('i32', '16_s', lastValidIndex + 1, offset, align);
testLoad('i32', '16_u', lastValidIndex, offset, align, 0);
testLoadOOB('i32', '16_u', lastValidIndex + 1, offset, align);
testStore('i32', '16', lastValidIndex, offset, align, -32768);
testStoreOOB('i32', '16', lastValidIndex + 1, offset, align, -32768);
}
// Accesses of 4 bytes.
lastValidIndex = 0x10000 - 4 - offset;
testLoad('i32', '', lastValidIndex, offset, align, 0);
testLoadOOB('i32', '', lastValidIndex + 1, offset, align);
testLoad('f32', '', lastValidIndex, offset, align, 0);
testLoadOOB('f32', '', lastValidIndex + 1, offset, align);
testStore('i32', '', lastValidIndex, offset, align, 1337);
testStoreOOB('i32', '', lastValidIndex + 1, offset, align, 1337);
testStore('f32', '', lastValidIndex, offset, align, Math.fround(13.37));
testStoreOOB('f32', '', lastValidIndex + 1, offset, align, Math.fround(13.37));
// Accesses of 8 bytes.
lastValidIndex = 0x10000 - 8 - offset;
testLoad('f64', '', lastValidIndex, offset, align, 0);
testLoadOOB('f64', '', lastValidIndex + 1, offset, align);
testStore('f64', '', lastValidIndex, offset, align, 1.23456789);
testStoreOOB('f64', '', lastValidIndex + 1, offset, align, 1.23456789);
}
// Ensure wrapping doesn't apply.
offset = 0x7fffffff;
for (let index of [0, 1, 2, 3, 0x7fffffff, 0x80000000, 0x80000001]) {
if (align < 2) {
testLoadOOB('i32', '8_s', index, offset, align);
}
if (align < 4) {
testLoadOOB('i32', '16_s', index, offset, align);
}
testLoadOOB('i32', '', index, offset, align);
testLoadOOB('f32', '', index, offset, align);
testLoadOOB('f64', '', index, offset, align);
}
// Ensure out of bounds when the offset is greater than the immediate range.
index = 0;
for (let offset of [0x80000000, 0xfffffffe, 0xffffffff]) {
testLoadOOB('i32', '8_s', index, offset, 1);
testLoadOOB('i32', '16_s', index, offset, 1);
testLoadOOB('i32', '16_s', index, offset, 2);
testLoadOOB('i32', '', index, offset, 1);
testLoadOOB('i32', '', index, offset, 4);
testLoadOOB('f32', '', index, offset, 1);
testLoadOOB('f32', '', index, offset, 4);
testLoadOOB('f64', '', index, offset, 1);
testLoadOOB('f64', '', index, offset, 8);
}
wasmFailValidateText('(module (memory 1) (func (f64.store offset=0 (i32.const 0) (i32.const 0))))', mismatchError("i32", "f64"));
wasmFailValidateText('(module (memory 1) (func (f64.store offset=0 (i32.const 0) (f32.const 0))))', mismatchError("f32", "f64"));
wasmFailValidateText('(module (memory 1) (func (f32.store offset=0 (i32.const 0) (i32.const 0))))', mismatchError("i32", "f32"));
wasmFailValidateText('(module (memory 1) (func (f32.store offset=0 (i32.const 0) (f64.const 0))))', mismatchError("f64", "f32"));
wasmFailValidateText('(module (memory 1) (func (i32.store offset=0 (i32.const 0) (f32.const 0))))', mismatchError("f32", "i32"));
wasmFailValidateText('(module (memory 1) (func (i32.store offset=0 (i32.const 0) (f64.const 0))))', mismatchError("f64", "i32"));
// Test high number of registers.
function testRegisters() {
assertEq(wasmEvalText(
`(module
(memory 1)
(data (i32.const 0) "\\00\\01\\02\\03\\04\\05\\06\\07\\08\\09\\0a\\0b\\0c\\0d\\0e\\0f")
(data (i32.const 16) "\\f0\\f1\\f2\\f3\\f4\\f5\\f6\\f7\\f8\\f9\\fa\\fb\\fc\\fd\\fe\\ff")
(func (param i32) (result i32) (local i32 i32 i32 i32 f32 f64)
(local.set 1 (i32.load8_s offset=4 (local.get 0)))
(local.set 2 (i32.load16_s (local.get 1)))
(i32.store8 offset=4 (local.get 0) (local.get 1))
(local.set 3 (i32.load16_u (local.get 2)))
(i32.store16 (local.get 1) (local.get 2))
(local.set 4 (i32.load (local.get 2)))
(i32.store (local.get 1) (local.get 2))
(local.set 5 (f32.load (local.get 4)))
(f32.store (local.get 4) (local.get 5))
(local.set 6 (f64.load (local.get 4)))
(f64.store (local.get 4) (local.get 6))
(i32.add
(i32.add
(local.get 0)
(local.get 1)
)
(i32.add
(i32.add
(local.get 2)
(local.get 3)
)
(i32.add
(local.get 4)
(i32.reinterpret/f32 (local.get 5))
)
)
)
) (export "" (func 0)))`
).exports[""](1), 50464523);
}
testRegisters();
testLoad('i64', '', 0, 0, 0, '0x0706050403020100');
testLoad('i64', '', 1, 0, 0, '0x0807060504030201');
testLoad('i64', '', 0, 1, 0, '0x0807060504030201');
testLoad('i64', '', 1, 1, 4, '0x0908070605040302');
testLoad('i64', '8_s', 16, 0, 0, -0x10);
testLoad('i64', '8_u', 16, 0, 0, 0xf0);
testLoad('i64', '16_s', 16, 0, 0, -0xe10);
testLoad('i64', '16_u', 16, 0, 0, 0xf1f0);
testLoad('i64', '32_s', 16, 0, 0, 0xf3f2f1f0 | 0);
testLoad('i64', '32_u', 16, 0, 0, '0xf3f2f1f0');
testStore('i64', '', 0, 0, 0, '0xc0c1d3d4e6e7090a');
testStore('i64', '', 1, 0, 0, '0xc0c1d3d4e6e7090a');
testStore('i64', '', 0, 1, 0, '0xc0c1d3d4e6e7090a');
testStore('i64', '', 1, 1, 4, '0xc0c1d3d4e6e7090a');
testStore('i64', '8', 0, 0, 0, 0x23);
testStore('i64', '16', 0, 0, 0, 0x23);
testStore('i64', '32', 0, 0, 0, 0x23);
for (let offset of [0, 1, 2, 3, 4, 8, 16, 41, 0xfff8]) {
// Accesses of 1 byte.
let lastValidIndex = 0x10000 - 1 - offset;
if (align < 2) {
testLoad('i64', '8_s', lastValidIndex, offset, align, 0);
testLoadOOB('i64', '8_s', lastValidIndex + 1, offset, align);
testLoad('i64', '8_u', lastValidIndex, offset, align, 0);
testLoadOOB('i64', '8_u', lastValidIndex + 1, offset, align);
testStore('i64', '8', lastValidIndex, offset, align, -42);
testStoreOOB('i64', '8', lastValidIndex + 1, offset, align, -42);
}
// Accesses of 2 bytes.
lastValidIndex = 0x10000 - 2 - offset;
if (align < 4) {
testLoad('i64', '16_s', lastValidIndex, offset, align, 0);
testLoadOOB('i64', '16_s', lastValidIndex + 1, offset, align);
testLoad('i64', '16_u', lastValidIndex, offset, align, 0);
testLoadOOB('i64', '16_u', lastValidIndex + 1, offset, align);
testStore('i64', '16', lastValidIndex, offset, align, -32768);
testStoreOOB('i64', '16', lastValidIndex + 1, offset, align, -32768);
}
// Accesses of 4 bytes.
lastValidIndex = 0x10000 - 4 - offset;
testLoad('i64', '32_s', lastValidIndex, offset, align, 0);
testLoadOOB('i64', '32_s', lastValidIndex + 1, offset, align);
testLoad('i64', '32_u', lastValidIndex, offset, align, 0);
testLoadOOB('i64', '32_u', lastValidIndex + 1, offset, align);
testStore('i64', '32', lastValidIndex, offset, align, 0xf1231337 | 0);
testStoreOOB('i64', '32', lastValidIndex + 1, offset, align, 0xf1231337 | 0);
// Accesses of 8 bytes.
lastValidIndex = 0x10000 - 8 - offset;
testLoad('i64', '', lastValidIndex, offset, align, 0);
testLoadOOB('i64', '', lastValidIndex + 1, offset, align);
testStore('i64', '', lastValidIndex, offset, align, '0x1234567887654321');
testStoreOOB('i64', '', lastValidIndex + 1, offset, align, '0x1234567887654321');
}
}
}
setJitCompilerOption('wasm.fold-offsets', 1);
// Test active segments with a memory index.
{
function makeIt(flag, memindex) {
return new Uint8Array([0x00, 0x61, 0x73, 0x6d,
0x01, 0x00, 0x00, 0x00,
0x05, // Memory section
0x03, // Section size
0x01, // One memory
0x00, // Unshared, min only
0x01, // Min
0x0b, // Data section
0x0a, // Section size
0x01, // One data segment
flag, // Flag should be 2, or > 2 if invalid
memindex, // Memory index should be 0, or > 0 if invalid
0x41, // Init expr: i32.const
0x00, // Init expr: zero (payload)
0x0b, // Init expr: end
0x03, // Three bytes, because why not?
0x01,
0x02,
0x03]);
}
// Should succeed because this is what an active segment with index looks like
new WebAssembly.Module(makeIt(0x02, 0x00));
// Should fail because the kind is unknown
assertErrorMessage(() => new WebAssembly.Module(makeIt(0x03, 0x00)),
WebAssembly.CompileError,
/invalid data initializer-kind/);
// Should fail because the memory index is bad
assertErrorMessage(() => new WebAssembly.Module(makeIt(0x02, 0x01)),
WebAssembly.CompileError,
/memory index must be zero/);
}
// Misc syntax for data.
// When memory index is present it must be zero, and the offset must be present too;
// but it's OK for there to be neither
new WebAssembly.Module(wasmTextToBinary(`(module (memory 1) (data 0 (i32.const 0) ""))`));
new WebAssembly.Module(wasmTextToBinary(`(module (memory 1) (data 0 (offset (i32.const 0)) ""))`));
new WebAssembly.Module(wasmTextToBinary(`(module (memory 1) (data ""))`));
assertErrorMessage(() => new WebAssembly.Module(wasmTextToBinary(`(module (memory 1) (data 0 ""))`)),
SyntaxError,
/wasm text error/);
assertErrorMessage(() => new WebAssembly.Module(wasmTextToBinary(`(module (memory 1) (data 1 (i32.const 0) ""))`)),
WebAssembly.CompileError,
/memory index must be zero/);
// Make sure we handle memory instructions without memory
var nomem = /(can't touch memory without memory)|(unknown memory)/;
assertErrorMessage(() => new WebAssembly.Module(wasmTextToBinary(`(module (func (result i32) memory.size))`)),
WebAssembly.CompileError,
nomem);
assertErrorMessage(() => new WebAssembly.Module(wasmTextToBinary(`(module (func (result i32) (memory.grow (i32.const 1))))`)),
WebAssembly.CompileError,
nomem);
assertErrorMessage(() => new WebAssembly.Module(wasmTextToBinary(`
(module (func (param i32 i32 i32)
(memory.copy (local.get 0) (local.get 1) (local.get 2))))`)),
WebAssembly.CompileError,
nomem);
assertErrorMessage(() => new WebAssembly.Module(wasmTextToBinary(`
(module (func (param i32 i32 i32)
(memory.fill (local.get 0) (local.get 1) (local.get 2))))`)),
WebAssembly.CompileError,
nomem);
assertErrorMessage(() => new WebAssembly.Module(wasmTextToBinary(`
(module
(data $d "01234")
(func (param i32 i32)
(memory.init $d (local.get 0) (local.get 1))))`)),
WebAssembly.CompileError,
nomem);
|
