wasmi interpreter (#7796)
This commit is contained in:
Nikolay Volf
Afri Schoedon
parent
ebda6d3916
commit
fb4582a90e
33
Cargo.lock
generated
33
Cargo.lock
generated
@ -2280,12 +2280,12 @@ dependencies = [
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[[package]]
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name = "parity-wasm"
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version = "0.15.3"
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version = "0.23.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"byteorder 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
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"parking_lot 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
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"parking_lot 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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@ -2327,15 +2327,6 @@ dependencies = [
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"rand 0.3.20 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "parking_lot"
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version = "0.4.8"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"owning_ref 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
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"parking_lot_core 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "parking_lot"
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version = "0.5.3"
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@ -3470,15 +3461,16 @@ dependencies = [
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"ethereum-types 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
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"libc 0.2.31 (registry+https://github.com/rust-lang/crates.io-index)",
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"log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
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"parity-wasm 0.15.3 (registry+https://github.com/rust-lang/crates.io-index)",
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"parity-wasm 0.23.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"vm 0.1.0",
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"wasm-utils 0.1.0 (git+https://github.com/paritytech/wasm-utils)",
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"wasmi 0.0.0 (git+https://github.com/pepyakin/wasmi)",
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]
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[[package]]
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name = "wasm-utils"
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version = "0.1.0"
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source = "git+https://github.com/paritytech/wasm-utils#3d59f7ca0661317bc66894a26b2a5a319fa5d229"
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source = "git+https://github.com/paritytech/wasm-utils#6fdc1c4ed47a6acb0a4774da505a416dd637bc6d"
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dependencies = [
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"byteorder 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"clap 2.29.1 (registry+https://github.com/rust-lang/crates.io-index)",
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@ -3486,7 +3478,16 @@ dependencies = [
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"glob 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
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"lazy_static 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
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"log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
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"parity-wasm 0.15.3 (registry+https://github.com/rust-lang/crates.io-index)",
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"parity-wasm 0.23.0 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "wasmi"
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version = "0.0.0"
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source = "git+https://github.com/pepyakin/wasmi#551c99273042deaad869c17798060e2212deacab"
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dependencies = [
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"byteorder 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"parity-wasm 0.23.0 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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@ -3721,9 +3722,8 @@ dependencies = [
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"checksum parity-ui-old-dev 1.9.0 (git+https://github.com/parity-js/dapp-wallet.git?rev=9993240efecb415aa880250ecef2710a413cf73f)" = "<none>"
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"checksum parity-ui-old-precompiled 1.9.0 (git+https://github.com/js-dist-paritytech/parity-master-1-9-v1.git)" = "<none>"
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"checksum parity-ui-precompiled 1.9.0 (git+https://github.com/js-dist-paritytech/parity-master-1-9-shell.git)" = "<none>"
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"checksum parity-wasm 0.15.3 (registry+https://github.com/rust-lang/crates.io-index)" = "8431a184ad88cfbcd71a792aaca319cc7203a94300c26b8dce2d0df0681ea87d"
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"checksum parity-wasm 0.23.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b1ba4b1d4236b76694f6ab8d8d00cdbe1e37c6dd1b5c803d26721f27e097d4d9"
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"checksum parity-wordlist 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1d0dec124478845b142f68b446cbee953d14d4b41f1bc0425024417720dce693"
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"checksum parking_lot 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)" = "149d8f5b97f3c1133e3cfcd8886449959e856b557ff281e292b733d7c69e005e"
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"checksum parking_lot 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)" = "3e7f7c9857874e54afeb950eebeae662b1e51a2493666d2ea4c0a5d91dcf0412"
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"checksum parking_lot_core 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)" = "4f610cb9664da38e417ea3225f23051f589851999535290e077939838ab7a595"
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"checksum percent-encoding 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "de154f638187706bde41d9b4738748933d64e6b37bdbffc0b47a97d16a6ae356"
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@ -3844,6 +3844,7 @@ dependencies = [
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"checksum version_check 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "6b772017e347561807c1aa192438c5fd74242a670a6cffacc40f2defd1dc069d"
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"checksum void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "6a02e4885ed3bc0f2de90ea6dd45ebcbb66dacffe03547fadbb0eeae2770887d"
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"checksum wasm-utils 0.1.0 (git+https://github.com/paritytech/wasm-utils)" = "<none>"
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"checksum wasmi 0.0.0 (git+https://github.com/pepyakin/wasmi)" = "<none>"
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"checksum winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "167dc9d6949a9b857f3451275e911c3f44255842c1f7a76f33c55103a909087a"
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"checksum winapi 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "b09fb3b6f248ea4cd42c9a65113a847d612e17505d6ebd1f7357ad68a8bf8693"
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"checksum winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "2d315eee3b34aca4797b2da6b13ed88266e6d612562a0c46390af8299fc699bc"
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@ -1 +1 @@
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Subproject commit f25e60e300ade96aba2adffb3ebca8e5b4965720
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Subproject commit ff8504a7f3b3fe78af47fa4e0c24e4a75a7306fd
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@ -154,11 +154,7 @@ impl TransactOptions<trace::NoopTracer, trace::NoopVMTracer> {
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pub fn executor(machine: &Machine, vm_factory: &Factory, params: &ActionParams) -> Box<vm::Vm> {
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if machine.supports_wasm() && params.code.as_ref().map_or(false, |code| code.len() > 4 && &code[0..4] == WASM_MAGIC_NUMBER) {
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Box::new(
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wasm::WasmInterpreter::new()
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// prefer to fail fast
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.expect("Failed to create wasm runtime")
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)
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Box::new(wasm::WasmInterpreter)
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} else {
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vm_factory.create(params.gas)
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}
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@ -127,20 +127,19 @@ pub struct WasmCosts {
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pub mul: u32,
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/// Memory (load/store) operations multiplier.
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pub mem: u32,
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/// Memory copy operation, per byte.
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pub mem_cmp: u32,
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/// Memory copy operation, per byte.
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pub mem_copy: u32,
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/// Memory move operation, per byte.
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pub mem_move: u32,
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/// Memory set operation, per byte.
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pub mem_set: u32,
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/// Static region charge, per byte.
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pub static_region: u32,
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/// General static query of U256 value from env-info
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pub static_u256: u32,
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/// General static query of Address value from env-info
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pub static_address: u32,
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/// Memory stipend. Amount of free memory (in 64kb pages) each contract can use for stack.
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pub initial_mem: u32,
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/// Grow memory cost, per page (64kb)
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pub grow_mem: u32,
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/// Cost of wasm opcode is calculated as TABLE_ENTRY_COST * `opcodes_mul` / `opcodes_div`
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pub opcodes_mul: u32,
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/// Cost of wasm opcode is calculated as TABLE_ENTRY_COST * `opcodes_mul` / `opcodes_div`
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pub opcodes_div: u32,
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}
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impl Default for WasmCosts {
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@ -150,13 +149,12 @@ impl Default for WasmCosts {
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div: 16,
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mul: 4,
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mem: 2,
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mem_cmp: 1,
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mem_copy: 1,
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mem_move: 1,
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mem_set: 1,
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static_region: 1,
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static_u256: 64,
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static_address: 40,
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initial_mem: 4096,
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grow_mem: 8192,
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opcodes_mul: 3,
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opcodes_div: 8,
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}
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}
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}
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@ -7,8 +7,9 @@ authors = ["Parity Technologies <admin@parity.io>"]
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byteorder = "1.0"
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ethereum-types = "0.1"
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log = "0.3"
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parity-wasm = "0.15"
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parity-wasm = "0.23"
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libc = "0.2"
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wasm-utils = { git = "https://github.com/paritytech/wasm-utils" }
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vm = { path = "../vm" }
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ethcore-logger = { path = "../../logger" }
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wasmi = { git = "https://github.com/pepyakin/wasmi" }
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@ -16,7 +16,7 @@ fn load_code<P: AsRef<path::Path>>(p: P) -> io::Result<Vec<u8>> {
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}
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fn wasm_interpreter() -> WasmInterpreter {
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WasmInterpreter::new().expect("wasm interpreter to create without errors")
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WasmInterpreter
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}
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#[derive(Debug)]
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@ -14,183 +14,279 @@
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// You should have received a copy of the GNU General Public License
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// along with Parity. If not, see <http://www.gnu.org/licenses/>.
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//! Wasm env module bindings
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//! Env module glue for wasmi interpreter
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use parity_wasm::elements::ValueType::*;
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use parity_wasm::interpreter::{self, UserFunctionDescriptor};
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use parity_wasm::interpreter::UserFunctionDescriptor::*;
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use super::runtime::{Runtime, UserTrap};
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use std::cell::RefCell;
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use wasmi::{
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self, Signature, Error, FuncRef, FuncInstance, MemoryDescriptor,
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MemoryRef, MemoryInstance,
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};
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pub const SIGNATURES: &'static [UserFunctionDescriptor] = &[
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Static(
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"_storage_read",
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&[I32; 2],
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/// Internal ids all functions runtime supports. This is just a glue for wasmi interpreter
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/// that lacks high-level api and later will be factored out
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pub mod ids {
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pub const STORAGE_WRITE_FUNC: usize = 0;
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pub const STORAGE_READ_FUNC: usize = 10;
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pub const RET_FUNC: usize = 20;
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pub const GAS_FUNC: usize = 30;
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pub const FETCH_INPUT_FUNC: usize = 40;
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pub const INPUT_LENGTH_FUNC: usize = 50;
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pub const CCALL_FUNC: usize = 60;
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pub const SCALL_FUNC: usize = 70;
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pub const DCALL_FUNC: usize = 80;
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pub const VALUE_FUNC: usize = 90;
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pub const CREATE_FUNC: usize = 100;
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pub const SUICIDE_FUNC: usize = 110;
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pub const BLOCKHASH_FUNC: usize = 120;
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pub const BLOCKNUMBER_FUNC: usize = 130;
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pub const COINBASE_FUNC: usize = 140;
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pub const DIFFICULTY_FUNC: usize = 150;
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pub const GASLIMIT_FUNC: usize = 160;
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pub const TIMESTAMP_FUNC: usize = 170;
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pub const ADDRESS_FUNC: usize = 180;
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pub const SENDER_FUNC: usize = 190;
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pub const ORIGIN_FUNC: usize = 200;
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pub const ELOG_FUNC: usize = 210;
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pub const PANIC_FUNC: usize = 1000;
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pub const DEBUG_FUNC: usize = 1010;
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}
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/// Signatures of all functions runtime supports. The actual dispatch happens at
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/// impl runtime::Runtime methods.
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pub mod signatures {
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use wasmi::{self, ValueType};
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use wasmi::ValueType::*;
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pub struct StaticSignature(pub &'static [ValueType], pub Option<ValueType>);
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pub const STORAGE_READ: StaticSignature = StaticSignature(
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&[I32, I32],
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None,
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),
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Static(
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"_storage_write",
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&[I32; 2],
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);
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pub const STORAGE_WRITE: StaticSignature = StaticSignature(
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&[I32, I32],
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None,
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),
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Static(
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"_balance",
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&[I32; 2],
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);
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pub const RET: StaticSignature = StaticSignature(
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&[I32, I32],
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None,
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),
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Static(
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"_ext_malloc",
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);
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pub const GAS: StaticSignature = StaticSignature(
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&[I32],
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None,
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);
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pub const FETCH_INPUT: StaticSignature = StaticSignature(
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&[I32],
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None,
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);
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pub const INPUT_LENGTH: StaticSignature = StaticSignature(
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&[],
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Some(I32),
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),
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Static(
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"_ext_free",
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&[I32],
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None,
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),
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Static(
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"gas",
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&[I32],
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None,
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),
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Static(
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"_debug",
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&[I32; 2],
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None,
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),
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Static(
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"_suicide",
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&[I32],
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None,
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),
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Static(
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"_create",
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&[I32; 4],
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Some(I32),
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),
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Static(
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"_ccall",
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);
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pub const CCALL: StaticSignature = StaticSignature(
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&[I64, I32, I32, I32, I32, I32, I32],
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Some(I32),
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),
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Static(
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"_dcall",
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);
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pub const DCALL: StaticSignature = StaticSignature(
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&[I64, I32, I32, I32, I32, I32],
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Some(I32),
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),
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Static(
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"_scall",
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);
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pub const SCALL: StaticSignature = StaticSignature(
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&[I64, I32, I32, I32, I32, I32],
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Some(I32),
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),
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Static(
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"abort",
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);
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pub const PANIC: StaticSignature = StaticSignature(
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&[I32, I32],
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None,
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);
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pub const DEBUG: StaticSignature = StaticSignature(
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&[I32, I32],
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None,
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);
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pub const VALUE: StaticSignature = StaticSignature(
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&[I32],
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None,
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),
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Static(
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"_emscripten_memcpy_big",
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&[I32; 3],
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);
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pub const CREATE: StaticSignature = StaticSignature(
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&[I32, I32, I32, I32],
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Some(I32),
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),
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Static(
|
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"_ext_memcmp",
|
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&[I32; 3],
|
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Some(I32),
|
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),
|
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Static(
|
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"_ext_memcpy",
|
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&[I32; 3],
|
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Some(I32),
|
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),
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Static(
|
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"_ext_memset",
|
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&[I32; 3],
|
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Some(I32),
|
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),
|
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Static(
|
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"_ext_memmove",
|
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&[I32; 3],
|
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Some(I32),
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),
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Static(
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"_panic",
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&[I32; 2],
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);
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pub const SUICIDE: StaticSignature = StaticSignature(
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&[I32],
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None,
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),
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Static(
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"_blockhash",
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);
|
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pub const BLOCKHASH: StaticSignature = StaticSignature(
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&[I64, I32],
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None,
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),
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Static(
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"_coinbase",
|
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&[I32],
|
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None,
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),
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Static(
|
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"_sender",
|
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&[I32],
|
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None,
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),
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Static(
|
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"_origin",
|
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&[I32],
|
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None,
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),
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Static(
|
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"_address",
|
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&[I32],
|
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None,
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),
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Static(
|
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"_value",
|
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&[I32],
|
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None,
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),
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Static(
|
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"_timestamp",
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);
|
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|
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pub const BLOCKNUMBER: StaticSignature = StaticSignature(
|
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&[],
|
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Some(I64),
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),
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Static(
|
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"_blocknumber",
|
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);
|
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|
||||
pub const COINBASE: StaticSignature = StaticSignature(
|
||||
&[I32],
|
||||
None,
|
||||
);
|
||||
|
||||
pub const DIFFICULTY: StaticSignature = StaticSignature(
|
||||
&[I32],
|
||||
None,
|
||||
);
|
||||
|
||||
pub const GASLIMIT: StaticSignature = StaticSignature(
|
||||
&[I32],
|
||||
None,
|
||||
);
|
||||
|
||||
pub const TIMESTAMP: StaticSignature = StaticSignature(
|
||||
&[],
|
||||
Some(I64),
|
||||
),
|
||||
Static(
|
||||
"_difficulty",
|
||||
);
|
||||
|
||||
pub const ADDRESS: StaticSignature = StaticSignature(
|
||||
&[I32],
|
||||
None,
|
||||
),
|
||||
Static(
|
||||
"_gaslimit",
|
||||
);
|
||||
|
||||
pub const SENDER: StaticSignature = StaticSignature(
|
||||
&[I32],
|
||||
None,
|
||||
),
|
||||
Static(
|
||||
"_elog",
|
||||
&[I32; 4],
|
||||
);
|
||||
|
||||
pub const ORIGIN: StaticSignature = StaticSignature(
|
||||
&[I32],
|
||||
None,
|
||||
),
|
||||
);
|
||||
|
||||
// TODO: Get rid of it also somehow?
|
||||
Static(
|
||||
"_llvm_trap",
|
||||
&[I32; 0],
|
||||
None
|
||||
),
|
||||
pub const ELOG: StaticSignature = StaticSignature(
|
||||
&[I32, I32, I32, I32],
|
||||
None,
|
||||
);
|
||||
|
||||
Static(
|
||||
"_llvm_bswap_i64",
|
||||
&[I64],
|
||||
Some(I64)
|
||||
),
|
||||
];
|
||||
|
||||
pub fn native_bindings<'a>(runtime: &'a mut Runtime) -> interpreter::UserDefinedElements<'a, UserTrap> {
|
||||
interpreter::UserDefinedElements {
|
||||
executor: Some(runtime),
|
||||
globals: ::std::collections::HashMap::new(),
|
||||
functions: ::std::borrow::Cow::from(SIGNATURES),
|
||||
impl Into<wasmi::Signature> for StaticSignature {
|
||||
fn into(self) -> wasmi::Signature {
|
||||
wasmi::Signature::new(self.0, self.1)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn host(signature: signatures::StaticSignature, idx: usize) -> FuncRef {
|
||||
FuncInstance::alloc_host(signature.into(), idx)
|
||||
}
|
||||
|
||||
/// Import resolver for wasmi
|
||||
/// Maps all functions that runtime support to the corresponding contract import
|
||||
/// entries.
|
||||
/// Also manages initial memory request from the runtime.
|
||||
#[derive(Default)]
|
||||
pub struct ImportResolver {
|
||||
max_memory: u32,
|
||||
memory: RefCell<Option<MemoryRef>>,
|
||||
}
|
||||
|
||||
impl ImportResolver {
|
||||
/// New import resolver with specifed maximum amount of inital memory (in wasm pages = 64kb)
|
||||
pub fn with_limit(max_memory: u32) -> ImportResolver {
|
||||
ImportResolver {
|
||||
max_memory: max_memory,
|
||||
memory: RefCell::new(None),
|
||||
}
|
||||
}
|
||||
|
||||
/// Returns memory that was instantiated during the contract module
|
||||
/// start. If contract does not use memory at all, the dummy memory of length (0, 0)
|
||||
/// will be created instead. So this method always returns memory instance
|
||||
/// unless errored.
|
||||
pub fn memory_ref(&self) -> MemoryRef {
|
||||
{
|
||||
let mut mem_ref = self.memory.borrow_mut();
|
||||
if mem_ref.is_none() {
|
||||
*mem_ref = Some(
|
||||
MemoryInstance::alloc(0, Some(0)).expect("Memory allocation (0, 0) should not fail; qed")
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
self.memory.borrow().clone().expect("it is either existed or was created as (0, 0) above; qed")
|
||||
}
|
||||
|
||||
/// Returns memory size module initially requested
|
||||
pub fn memory_size(&self) -> Result<u32, Error> {
|
||||
Ok(self.memory_ref().size())
|
||||
}
|
||||
}
|
||||
|
||||
impl wasmi::ModuleImportResolver for ImportResolver {
|
||||
fn resolve_func(&self, field_name: &str, _signature: &Signature) -> Result<FuncRef, Error> {
|
||||
let func_ref = match field_name {
|
||||
"storage_read" => host(signatures::STORAGE_READ, ids::STORAGE_READ_FUNC),
|
||||
"storage_write" => host(signatures::STORAGE_WRITE, ids::STORAGE_WRITE_FUNC),
|
||||
"ret" => host(signatures::RET, ids::RET_FUNC),
|
||||
"gas" => host(signatures::GAS, ids::GAS_FUNC),
|
||||
"input_length" => host(signatures::INPUT_LENGTH, ids::INPUT_LENGTH_FUNC),
|
||||
"fetch_input" => host(signatures::FETCH_INPUT, ids::FETCH_INPUT_FUNC),
|
||||
"panic" => host(signatures::PANIC, ids::PANIC_FUNC),
|
||||
"debug" => host(signatures::DEBUG, ids::DEBUG_FUNC),
|
||||
"ccall" => host(signatures::CCALL, ids::CCALL_FUNC),
|
||||
"dcall" => host(signatures::DCALL, ids::DCALL_FUNC),
|
||||
"scall" => host(signatures::SCALL, ids::SCALL_FUNC),
|
||||
"value" => host(signatures::VALUE, ids::VALUE_FUNC),
|
||||
"create" => host(signatures::CREATE, ids::CREATE_FUNC),
|
||||
"suicide" => host(signatures::SUICIDE, ids::SUICIDE_FUNC),
|
||||
"blockhash" => host(signatures::BLOCKHASH, ids::BLOCKHASH_FUNC),
|
||||
"blocknumber" => host(signatures::BLOCKNUMBER, ids::BLOCKNUMBER_FUNC),
|
||||
"coinbase" => host(signatures::COINBASE, ids::COINBASE_FUNC),
|
||||
"difficulty" => host(signatures::DIFFICULTY, ids::DIFFICULTY_FUNC),
|
||||
"gaslimit" => host(signatures::GASLIMIT, ids::GASLIMIT_FUNC),
|
||||
"timestamp" => host(signatures::TIMESTAMP, ids::TIMESTAMP_FUNC),
|
||||
"address" => host(signatures::ADDRESS, ids::ADDRESS_FUNC),
|
||||
"sender" => host(signatures::SENDER, ids::SENDER_FUNC),
|
||||
"origin" => host(signatures::ORIGIN, ids::ORIGIN_FUNC),
|
||||
"elog" => host(signatures::ELOG, ids::ELOG_FUNC),
|
||||
_ => {
|
||||
return Err(wasmi::Error::Instantiation(
|
||||
format!("Export {} not found", field_name),
|
||||
))
|
||||
}
|
||||
};
|
||||
|
||||
Ok(func_ref)
|
||||
}
|
||||
|
||||
fn resolve_memory(
|
||||
&self,
|
||||
field_name: &str,
|
||||
descriptor: &MemoryDescriptor,
|
||||
) -> Result<MemoryRef, Error> {
|
||||
if field_name == "memory" {
|
||||
let effective_max = descriptor.maximum().unwrap_or(self.max_memory + 1);
|
||||
if descriptor.initial() > self.max_memory || effective_max > self.max_memory
|
||||
{
|
||||
Err(Error::Instantiation("Module requested too much memory".to_owned()))
|
||||
} else {
|
||||
let mem = MemoryInstance::alloc(descriptor.initial(), descriptor.maximum())?;
|
||||
*self.memory.borrow_mut() = Some(mem.clone());
|
||||
Ok(mem)
|
||||
}
|
||||
} else {
|
||||
Err(Error::Instantiation("Memory imported under unknown name".to_owned()))
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -16,34 +16,29 @@
|
||||
|
||||
//! Wasm Interpreter
|
||||
|
||||
extern crate vm;
|
||||
extern crate byteorder;
|
||||
extern crate ethcore_logger;
|
||||
extern crate ethereum_types;
|
||||
#[macro_use] extern crate log;
|
||||
extern crate ethcore_logger;
|
||||
extern crate byteorder;
|
||||
extern crate parity_wasm;
|
||||
extern crate libc;
|
||||
extern crate parity_wasm;
|
||||
extern crate vm;
|
||||
extern crate wasm_utils;
|
||||
extern crate wasmi;
|
||||
|
||||
mod runtime;
|
||||
mod ptr;
|
||||
mod result;
|
||||
#[cfg(test)]
|
||||
mod tests;
|
||||
mod env;
|
||||
mod panic_payload;
|
||||
|
||||
const DEFAULT_STACK_SPACE: u32 = 5 * 1024 * 1024;
|
||||
|
||||
use parity_wasm::{interpreter, elements};
|
||||
use parity_wasm::interpreter::ModuleInstanceInterface;
|
||||
mod parser;
|
||||
|
||||
use vm::{GasLeft, ReturnData, ActionParams};
|
||||
use self::runtime::{Runtime, RuntimeContext, UserTrap};
|
||||
use wasmi::Error as InterpreterError;
|
||||
|
||||
pub use self::runtime::InterpreterError;
|
||||
use runtime::{Runtime, RuntimeContext};
|
||||
|
||||
const DEFAULT_RESULT_BUFFER: usize = 1024;
|
||||
use ethereum_types::U256;
|
||||
|
||||
/// Wrapped interpreter error
|
||||
#[derive(Debug)]
|
||||
@ -61,139 +56,110 @@ impl From<Error> for vm::Error {
|
||||
}
|
||||
}
|
||||
|
||||
impl From<UserTrap> for vm::Error {
|
||||
fn from(e: UserTrap) -> Self { e.into() }
|
||||
}
|
||||
|
||||
/// Wasm interpreter instance
|
||||
pub struct WasmInterpreter {
|
||||
program: runtime::InterpreterProgramInstance,
|
||||
result: Vec<u8>,
|
||||
}
|
||||
pub struct WasmInterpreter;
|
||||
|
||||
impl WasmInterpreter {
|
||||
/// New wasm interpreter instance
|
||||
pub fn new() -> Result<WasmInterpreter, Error> {
|
||||
Ok(WasmInterpreter {
|
||||
program: interpreter::ProgramInstance::new()?,
|
||||
result: Vec::with_capacity(DEFAULT_RESULT_BUFFER),
|
||||
})
|
||||
impl From<runtime::Error> for vm::Error {
|
||||
fn from(e: runtime::Error) -> Self {
|
||||
vm::Error::Wasm(format!("Wasm runtime error: {:?}", e))
|
||||
}
|
||||
}
|
||||
|
||||
impl vm::Vm for WasmInterpreter {
|
||||
|
||||
fn exec(&mut self, params: ActionParams, ext: &mut vm::Ext) -> vm::Result<GasLeft> {
|
||||
use parity_wasm::elements::Deserialize;
|
||||
let (module, data) = parser::payload(¶ms, ext.schedule())?;
|
||||
|
||||
let code = params.code.expect("exec is only called on contract with code; qed");
|
||||
let loaded_module = wasmi::Module::from_parity_wasm_module(module).map_err(Error)?;
|
||||
|
||||
trace!(target: "wasm", "Started wasm interpreter with code.len={:?}", code.len());
|
||||
let instantiation_resolover = env::ImportResolver::with_limit(16);
|
||||
|
||||
let env_instance = self.program.module("env")
|
||||
// prefer explicit panic here
|
||||
.expect("Wasm program to contain env module");
|
||||
let module_instance = wasmi::ModuleInstance::new(
|
||||
&loaded_module,
|
||||
&wasmi::ImportsBuilder::new().with_resolver("env", &instantiation_resolover)
|
||||
).map_err(Error)?;
|
||||
|
||||
let env_memory = env_instance.memory(interpreter::ItemIndex::Internal(0))
|
||||
// prefer explicit panic here
|
||||
.expect("Linear memory to exist in wasm runtime");
|
||||
let adjusted_gas = params.gas * U256::from(ext.schedule().wasm.opcodes_div) /
|
||||
U256::from(ext.schedule().wasm.opcodes_mul);
|
||||
|
||||
if params.gas > ::std::u64::MAX.into() {
|
||||
return Err(vm::Error::Wasm("Wasm interpreter cannot run contracts with gas >= 2^64".to_owned()));
|
||||
if adjusted_gas > ::std::u64::MAX.into()
|
||||
{
|
||||
return Err(vm::Error::Wasm("Wasm interpreter cannot run contracts with gas (wasm adjusted) >= 2^64".to_owned()));
|
||||
}
|
||||
|
||||
let mut runtime = Runtime::with_params(
|
||||
ext,
|
||||
env_memory,
|
||||
DEFAULT_STACK_SPACE,
|
||||
params.gas.low_u64(),
|
||||
RuntimeContext {
|
||||
address: params.address,
|
||||
sender: params.sender,
|
||||
origin: params.origin,
|
||||
code_address: params.code_address,
|
||||
value: params.value.value(),
|
||||
},
|
||||
&self.program,
|
||||
);
|
||||
let initial_memory = instantiation_resolover.memory_size().map_err(Error)?;
|
||||
trace!(target: "wasm", "Contract requested {:?} pages of initial memory", initial_memory);
|
||||
|
||||
let (mut cursor, data_position) = match params.params_type {
|
||||
vm::ParamsType::Embedded => {
|
||||
let module_size = parity_wasm::peek_size(&*code);
|
||||
(
|
||||
::std::io::Cursor::new(&code[..module_size]),
|
||||
module_size
|
||||
)
|
||||
},
|
||||
vm::ParamsType::Separate => {
|
||||
(::std::io::Cursor::new(&code[..]), 0)
|
||||
},
|
||||
};
|
||||
|
||||
let contract_module = wasm_utils::inject_gas_counter(
|
||||
elements::Module::deserialize(
|
||||
&mut cursor
|
||||
).map_err(|err| {
|
||||
vm::Error::Wasm(format!("Error deserializing contract code ({:?})", err))
|
||||
})?,
|
||||
runtime.gas_rules(),
|
||||
);
|
||||
|
||||
let data_section_length = contract_module.data_section()
|
||||
.map(|section| section.entries().iter().fold(0, |sum, entry| sum + entry.value().len()))
|
||||
.unwrap_or(0)
|
||||
as u64;
|
||||
|
||||
let static_segment_cost = data_section_length * runtime.ext().schedule().wasm.static_region as u64;
|
||||
runtime.charge(|_| static_segment_cost).map_err(Error)?;
|
||||
|
||||
let d_ptr = {
|
||||
match params.params_type {
|
||||
vm::ParamsType::Embedded => {
|
||||
runtime.write_descriptor(
|
||||
if data_position < code.len() { &code[data_position..] } else { &[] }
|
||||
).map_err(Error)?
|
||||
let (gas_left, result) = {
|
||||
let mut runtime = Runtime::with_params(
|
||||
ext,
|
||||
instantiation_resolover.memory_ref(),
|
||||
// cannot overflow, checked above
|
||||
adjusted_gas.low_u64(),
|
||||
data.to_vec(),
|
||||
RuntimeContext {
|
||||
address: params.address,
|
||||
sender: params.sender,
|
||||
origin: params.origin,
|
||||
code_address: params.code_address,
|
||||
value: params.value.value(),
|
||||
},
|
||||
vm::ParamsType::Separate => {
|
||||
runtime.write_descriptor(¶ms.data.unwrap_or_default())
|
||||
.map_err(Error)?
|
||||
}
|
||||
}
|
||||
};
|
||||
);
|
||||
|
||||
{
|
||||
let execution_params = runtime.execution_params()
|
||||
.add_argument(interpreter::RuntimeValue::I32(d_ptr.as_raw() as i32));
|
||||
// cannot overflow if static_region < 2^16,
|
||||
// initial_memory ∈ [0..2^32)
|
||||
// total_charge <- static_region * 2^32 * 2^16
|
||||
// total_charge ∈ [0..2^64) if static_region ∈ [0..2^16)
|
||||
// qed
|
||||
assert!(runtime.schedule().wasm.initial_mem < 1 << 16);
|
||||
runtime.charge(|s| initial_memory as u64 * s.wasm.initial_mem as u64)?;
|
||||
|
||||
let module_instance = self.program.add_module("contract", contract_module, Some(&execution_params.externals))
|
||||
.map_err(|err| {
|
||||
trace!(target: "wasm", "Error adding contract module: {:?}", err);
|
||||
vm::Error::from(Error(err))
|
||||
})?;
|
||||
let module_instance = module_instance.run_start(&mut runtime).map_err(Error)?;
|
||||
|
||||
match module_instance.execute_export("_call", execution_params) {
|
||||
match module_instance.invoke_export("call", &[], &mut runtime) {
|
||||
Ok(_) => { },
|
||||
Err(interpreter::Error::User(UserTrap::Suicide)) => { },
|
||||
Err(InterpreterError::Host(boxed)) => {
|
||||
match boxed.downcast_ref::<runtime::Error>() {
|
||||
None => {
|
||||
return Err(vm::Error::Wasm("Invalid user error used in interpreter".to_owned()));
|
||||
}
|
||||
Some(runtime_err) => {
|
||||
match *runtime_err {
|
||||
runtime::Error::Suicide => {
|
||||
// Suicide uses trap to break execution
|
||||
}
|
||||
ref any_err => {
|
||||
trace!(target: "wasm", "Error executing contract: {:?}", boxed);
|
||||
return Err(vm::Error::from(Error::from(InterpreterError::Host(Box::new(any_err.clone())))));
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
},
|
||||
Err(err) => {
|
||||
trace!(target: "wasm", "Error executing contract: {:?}", err);
|
||||
return Err(vm::Error::from(Error(err)))
|
||||
return Err(vm::Error::from(Error::from(err)))
|
||||
}
|
||||
}
|
||||
}
|
||||
(
|
||||
runtime.gas_left().expect("Cannot fail since it was not updated since last charge"),
|
||||
runtime.into_result(),
|
||||
)
|
||||
};
|
||||
|
||||
let result = result::WasmResult::new(d_ptr);
|
||||
if result.peek_empty(&*runtime.memory()).map_err(|e| Error(e))? {
|
||||
let gas_left =
|
||||
U256::from(gas_left) * U256::from(ext.schedule().wasm.opcodes_mul)
|
||||
/ U256::from(ext.schedule().wasm.opcodes_div);
|
||||
|
||||
if result.is_empty() {
|
||||
trace!(target: "wasm", "Contract execution result is empty.");
|
||||
Ok(GasLeft::Known(runtime.gas_left()?.into()))
|
||||
Ok(GasLeft::Known(gas_left))
|
||||
} else {
|
||||
self.result.clear();
|
||||
// todo: use memory views to avoid copy
|
||||
self.result.extend(result.pop(&*runtime.memory()).map_err(|e| Error(e.into()))?);
|
||||
let len = self.result.len();
|
||||
let len = result.len();
|
||||
Ok(GasLeft::NeedsReturn {
|
||||
gas_left: runtime.gas_left().map_err(|e| Error(e.into()))?.into(),
|
||||
gas_left: gas_left,
|
||||
data: ReturnData::new(
|
||||
::std::mem::replace(&mut self.result, Vec::with_capacity(DEFAULT_RESULT_BUFFER)),
|
||||
result,
|
||||
0,
|
||||
len,
|
||||
),
|
||||
|
||||
81
ethcore/wasm/src/parser.rs
Normal file
81
ethcore/wasm/src/parser.rs
Normal file
@ -0,0 +1,81 @@
|
||||
// Copyright 2015-2017 Parity Technologies (UK) Ltd.
|
||||
// This file is part of Parity.
|
||||
|
||||
// Parity is free software: you can redistribute it and/or modify
|
||||
// it under the terms of the GNU General Public License as published by
|
||||
// the Free Software Foundation, either version 3 of the License, or
|
||||
// (at your option) any later version.
|
||||
|
||||
// Parity is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
// GNU General Public License for more details.
|
||||
|
||||
// You should have received a copy of the GNU General Public License
|
||||
// along with Parity. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
//! ActionParams parser for wasm
|
||||
|
||||
use vm;
|
||||
use wasm_utils::{self, rules};
|
||||
use parity_wasm::elements::{self, Deserialize};
|
||||
use parity_wasm::peek_size;
|
||||
|
||||
fn gas_rules(schedule: &vm::Schedule) -> rules::Set {
|
||||
rules::Set::new({
|
||||
let mut vals = ::std::collections::HashMap::with_capacity(4);
|
||||
vals.insert(rules::InstructionType::Load, schedule.wasm.mem as u32);
|
||||
vals.insert(rules::InstructionType::Store, schedule.wasm.mem as u32);
|
||||
vals.insert(rules::InstructionType::Div, schedule.wasm.div as u32);
|
||||
vals.insert(rules::InstructionType::Mul, schedule.wasm.mul as u32);
|
||||
vals
|
||||
}).with_grow_cost(schedule.wasm.grow_mem)
|
||||
}
|
||||
|
||||
/// Splits payload to code and data according to params.params_type, also
|
||||
/// loads the module instance from payload and injects gas counter according
|
||||
/// to schedule.
|
||||
pub fn payload<'a>(params: &'a vm::ActionParams, schedule: &vm::Schedule)
|
||||
-> Result<(elements::Module, &'a [u8]), vm::Error>
|
||||
{
|
||||
let code = match params.code {
|
||||
Some(ref code) => &code[..],
|
||||
None => { return Err(vm::Error::Wasm("Invalid wasm call".to_owned())); }
|
||||
};
|
||||
|
||||
let (mut cursor, data_position) = match params.params_type {
|
||||
vm::ParamsType::Embedded => {
|
||||
let module_size = peek_size(&*code);
|
||||
(
|
||||
::std::io::Cursor::new(&code[..module_size]),
|
||||
module_size
|
||||
)
|
||||
},
|
||||
vm::ParamsType::Separate => {
|
||||
(::std::io::Cursor::new(&code[..]), 0)
|
||||
},
|
||||
};
|
||||
|
||||
let contract_module = wasm_utils::inject_gas_counter(
|
||||
elements::Module::deserialize(
|
||||
&mut cursor
|
||||
).map_err(|err| {
|
||||
vm::Error::Wasm(format!("Error deserializing contract code ({:?})", err))
|
||||
})?,
|
||||
&gas_rules(schedule),
|
||||
);
|
||||
|
||||
let data = match params.params_type {
|
||||
vm::ParamsType::Embedded => {
|
||||
if data_position < code.len() { &code[data_position..] } else { &[] }
|
||||
},
|
||||
vm::ParamsType::Separate => {
|
||||
match params.data {
|
||||
Some(ref s) => &s[..],
|
||||
None => &[]
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
Ok((contract_module, data))
|
||||
}
|
||||
@ -1,58 +0,0 @@
|
||||
// Copyright 2015-2017 Parity Technologies (UK) Ltd.
|
||||
// This file is part of Parity.
|
||||
|
||||
// Parity is free software: you can redistribute it and/or modify
|
||||
// it under the terms of the GNU General Public License as published by
|
||||
// the Free Software Foundation, either version 3 of the License, or
|
||||
// (at your option) any later version.
|
||||
|
||||
// Parity is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
// GNU General Public License for more details.
|
||||
|
||||
// You should have received a copy of the GNU General Public License
|
||||
// along with Parity. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
//! Wasm bound-checked ptr
|
||||
|
||||
use super::runtime::{InterpreterMemoryInstance, InterpreterError, UserTrap};
|
||||
|
||||
/// Bound-checked wrapper for webassembly memory
|
||||
pub struct WasmPtr(u32);
|
||||
|
||||
/// Error in bound check
|
||||
#[derive(Debug)]
|
||||
pub enum Error {
|
||||
AccessViolation,
|
||||
}
|
||||
|
||||
impl From<u32> for WasmPtr {
|
||||
fn from(raw: u32) -> Self {
|
||||
WasmPtr(raw)
|
||||
}
|
||||
}
|
||||
|
||||
impl From<Error> for InterpreterError {
|
||||
fn from(_e: Error) -> Self {
|
||||
UserTrap::MemoryAccessViolation.into()
|
||||
}
|
||||
}
|
||||
|
||||
impl WasmPtr {
|
||||
// todo: use memory view when they are on
|
||||
/// Check memory range and return data with given length starting from the current pointer value
|
||||
pub fn slice(&self, len: u32, mem: &InterpreterMemoryInstance) -> Result<Vec<u8>, Error> {
|
||||
mem.get(self.0, len as usize).map_err(|_| Error::AccessViolation)
|
||||
}
|
||||
|
||||
// todo: maybe 2gb limit can be enhanced
|
||||
/// Convert i32 from wasm stack to the wrapped pointer
|
||||
pub fn from_i32(raw_ptr: i32) -> Result<Self, Error> {
|
||||
if raw_ptr < 0 { return Err(Error::AccessViolation); }
|
||||
Ok(WasmPtr(raw_ptr as u32))
|
||||
}
|
||||
|
||||
/// Return pointer raw value
|
||||
pub fn as_raw(&self) -> u32 { self.0 }
|
||||
}
|
||||
@ -1,49 +0,0 @@
|
||||
// Copyright 2015-2017 Parity Technologies (UK) Ltd.
|
||||
// This file is part of Parity.
|
||||
|
||||
// Parity is free software: you can redistribute it and/or modify
|
||||
// it under the terms of the GNU General Public License as published by
|
||||
// the Free Software Foundation, either version 3 of the License, or
|
||||
// (at your option) any later version.
|
||||
|
||||
// Parity is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
// GNU General Public License for more details.
|
||||
|
||||
// You should have received a copy of the GNU General Public License
|
||||
// along with Parity. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
//! Wasm evm results helper
|
||||
|
||||
use byteorder::{LittleEndian, ByteOrder};
|
||||
|
||||
use super::ptr::WasmPtr;
|
||||
use super::runtime::{InterpreterError, InterpreterMemoryInstance};
|
||||
|
||||
/// Wrapper for wasm contract call result
|
||||
pub struct WasmResult {
|
||||
ptr: WasmPtr,
|
||||
}
|
||||
|
||||
impl WasmResult {
|
||||
/// New call result from given ptr
|
||||
pub fn new(descriptor_ptr: WasmPtr) -> WasmResult {
|
||||
WasmResult { ptr: descriptor_ptr }
|
||||
}
|
||||
|
||||
/// Check if the result contains any data
|
||||
pub fn peek_empty(&self, mem: &InterpreterMemoryInstance) -> Result<bool, InterpreterError> {
|
||||
let result_len = LittleEndian::read_u32(&self.ptr.slice(16, mem)?[12..16]);
|
||||
Ok(result_len == 0)
|
||||
}
|
||||
|
||||
/// Consume the result ptr and return the actual data from wasm linear memory
|
||||
pub fn pop(self, mem: &InterpreterMemoryInstance) -> Result<Vec<u8>, InterpreterError> {
|
||||
let result_ptr = LittleEndian::read_u32(&self.ptr.slice(16, mem)?[8..12]);
|
||||
let result_len = LittleEndian::read_u32(&self.ptr.slice(16, mem)?[12..16]);
|
||||
trace!(target: "wasm", "contract result: {} bytes at @{}", result_len, result_ptr);
|
||||
|
||||
Ok(mem.get(result_ptr, result_len as usize)?)
|
||||
}
|
||||
}
|
||||
File diff suppressed because it is too large
Load Diff
@ -66,7 +66,7 @@ fn test_finalize(res: Result<GasLeft, vm::Error>) -> Result<U256, vm::Error> {
|
||||
}
|
||||
|
||||
fn wasm_interpreter() -> WasmInterpreter {
|
||||
WasmInterpreter::new().expect("wasm interpreter to create without errors")
|
||||
WasmInterpreter
|
||||
}
|
||||
|
||||
/// Empty contract does almost nothing except producing 1 (one) local node debug log message
|
||||
@ -86,7 +86,7 @@ fn empty() {
|
||||
test_finalize(interpreter.exec(params, &mut ext)).unwrap()
|
||||
};
|
||||
|
||||
assert_eq!(gas_left, U256::from(96_678));
|
||||
assert_eq!(gas_left, U256::from(98462));
|
||||
}
|
||||
|
||||
// This test checks if the contract deserializes payload header properly.
|
||||
@ -138,7 +138,7 @@ fn logger() {
|
||||
U256::from(1_000_000_000),
|
||||
"Logger sets 0x04 key to the trasferred value"
|
||||
);
|
||||
assert_eq!(gas_left, U256::from(15_860));
|
||||
assert_eq!(gas_left, U256::from(17_578));
|
||||
}
|
||||
|
||||
// This test checks if the contract can allocate memory and pass pointer to the result stream properly.
|
||||
@ -173,7 +173,7 @@ fn identity() {
|
||||
sender,
|
||||
"Idenity test contract does not return the sender passed"
|
||||
);
|
||||
assert_eq!(gas_left, U256::from(96_540));
|
||||
assert_eq!(gas_left, U256::from(98_408));
|
||||
}
|
||||
|
||||
// Dispersion test sends byte array and expect the contract to 'disperse' the original elements with
|
||||
@ -182,6 +182,8 @@ fn identity() {
|
||||
// This also tests byte-perfect memory allocation and in/out ptr lifecycle.
|
||||
#[test]
|
||||
fn dispersion() {
|
||||
::ethcore_logger::init_log();
|
||||
|
||||
let code = load_sample!("dispersion.wasm");
|
||||
|
||||
let mut params = ActionParams::default();
|
||||
@ -201,12 +203,11 @@ fn dispersion() {
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
assert_eq!(
|
||||
result,
|
||||
vec![0u8, 0, 125, 11, 197, 7, 255, 8, 19, 0]
|
||||
);
|
||||
assert_eq!(gas_left, U256::from(96_116));
|
||||
assert_eq!(gas_left, U256::from(93_972));
|
||||
}
|
||||
|
||||
#[test]
|
||||
@ -234,7 +235,7 @@ fn suicide_not() {
|
||||
result,
|
||||
vec![0u8]
|
||||
);
|
||||
assert_eq!(gas_left, U256::from(96_461));
|
||||
assert_eq!(gas_left, U256::from(94_970));
|
||||
}
|
||||
|
||||
#[test]
|
||||
@ -266,7 +267,7 @@ fn suicide() {
|
||||
};
|
||||
|
||||
assert!(ext.suicides.contains(&refund));
|
||||
assert_eq!(gas_left, U256::from(96_429));
|
||||
assert_eq!(gas_left, U256::from(94_933));
|
||||
}
|
||||
|
||||
#[test]
|
||||
@ -296,7 +297,7 @@ fn create() {
|
||||
assert!(ext.calls.contains(
|
||||
&FakeCall {
|
||||
call_type: FakeCallType::Create,
|
||||
gas: U256::from(62_545),
|
||||
gas: U256::from(60_917),
|
||||
sender_address: None,
|
||||
receive_address: None,
|
||||
value: Some(1_000_000_000.into()),
|
||||
@ -304,7 +305,7 @@ fn create() {
|
||||
code_address: None,
|
||||
}
|
||||
));
|
||||
assert_eq!(gas_left, U256::from(62_538));
|
||||
assert_eq!(gas_left, U256::from(60_903));
|
||||
}
|
||||
|
||||
#[test]
|
||||
@ -348,7 +349,7 @@ fn call_msg() {
|
||||
}
|
||||
));
|
||||
|
||||
assert_eq!(gas_left, U256::from(95_699));
|
||||
assert_eq!(gas_left, U256::from(93_511));
|
||||
}
|
||||
|
||||
#[test]
|
||||
@ -393,7 +394,7 @@ fn call_code() {
|
||||
// siphash result
|
||||
let res = LittleEndian::read_u32(&result[..]);
|
||||
assert_eq!(res, 4198595614);
|
||||
assert_eq!(gas_left, U256::from(90_550));
|
||||
assert_eq!(gas_left, U256::from(92_381));
|
||||
}
|
||||
|
||||
#[test]
|
||||
@ -441,7 +442,7 @@ fn call_static() {
|
||||
let res = LittleEndian::read_u32(&result[..]);
|
||||
assert_eq!(res, 317632590);
|
||||
|
||||
assert_eq!(gas_left, U256::from(90_550));
|
||||
assert_eq!(gas_left, U256::from(92_381));
|
||||
}
|
||||
|
||||
// Realloc test
|
||||
@ -464,13 +465,37 @@ fn realloc() {
|
||||
}
|
||||
};
|
||||
assert_eq!(result, vec![0u8; 2]);
|
||||
assert_eq!(gas_left, U256::from(96_445));
|
||||
assert_eq!(gas_left, U256::from(94_352));
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn alloc() {
|
||||
let code = load_sample!("alloc.wasm");
|
||||
|
||||
let mut params = ActionParams::default();
|
||||
params.gas = U256::from(10_000_000);
|
||||
params.code = Some(Arc::new(code));
|
||||
params.data = Some(vec![0u8]);
|
||||
let mut ext = FakeExt::new();
|
||||
|
||||
let (gas_left, result) = {
|
||||
let mut interpreter = wasm_interpreter();
|
||||
let result = interpreter.exec(params, &mut ext).expect("Interpreter to execute without any errors");
|
||||
match result {
|
||||
GasLeft::Known(_) => { panic!("alloc test should return payload"); },
|
||||
GasLeft::NeedsReturn { gas_left: gas, data: result, apply_state: _apply } => (gas, result.to_vec()),
|
||||
}
|
||||
};
|
||||
assert_eq!(result, vec![5u8; 1024*450]);
|
||||
assert_eq!(gas_left, U256::from(6_506_844));
|
||||
}
|
||||
|
||||
// Tests that contract's ability to read from a storage
|
||||
// Test prepopulates address into storage, than executes a contract which read that address from storage and write this address into result
|
||||
#[test]
|
||||
fn storage_read() {
|
||||
::ethcore_logger::init_log();
|
||||
|
||||
let code = load_sample!("storage_read.wasm");
|
||||
let address: Address = "0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6".parse().unwrap();
|
||||
|
||||
@ -490,7 +515,7 @@ fn storage_read() {
|
||||
};
|
||||
|
||||
assert_eq!(Address::from(&result[12..32]), address);
|
||||
assert_eq!(gas_left, U256::from(96_463));
|
||||
assert_eq!(gas_left, U256::from(98_298));
|
||||
}
|
||||
|
||||
// Tests keccak calculation
|
||||
@ -516,126 +541,7 @@ fn keccak() {
|
||||
};
|
||||
|
||||
assert_eq!(H256::from_slice(&result), H256::from("68371d7e884c168ae2022c82bd837d51837718a7f7dfb7aa3f753074a35e1d87"));
|
||||
assert_eq!(gas_left, U256::from(81_067));
|
||||
}
|
||||
|
||||
// memcmp test.
|
||||
#[test]
|
||||
fn memcmp() {
|
||||
::ethcore_logger::init_log();
|
||||
|
||||
let (gas_left, result) = reqrep_test! {
|
||||
"memcmp.wasm",
|
||||
vec![1u8, 1, 1]
|
||||
}.expect("Interpreter to execute without any errors");
|
||||
|
||||
assert_eq!(0i32, LittleEndian::read_i32(&result));
|
||||
assert_eq!(gas_left, U256::from(96610));
|
||||
|
||||
let (gas_left, result) = reqrep_test! {
|
||||
"memcmp.wasm",
|
||||
vec![1u8, 1, 3, 1]
|
||||
}.expect("Interpreter to execute without any errors");
|
||||
|
||||
assert_eq!(2i32, LittleEndian::read_i32(&result));
|
||||
assert_eq!(gas_left, U256::from(96610));
|
||||
|
||||
let (gas_left, result) = reqrep_test! {
|
||||
"memcmp.wasm",
|
||||
vec![1u8, 1, 0]
|
||||
}.expect("Interpreter to execute without any errors");
|
||||
|
||||
assert_eq!(-1i32, LittleEndian::read_i32(&result));
|
||||
assert_eq!(gas_left, U256::from(96610));
|
||||
}
|
||||
|
||||
// memcpy test.
|
||||
#[test]
|
||||
fn memcpy() {
|
||||
::ethcore_logger::init_log();
|
||||
let code = load_sample!("mem.wasm");
|
||||
|
||||
let mut test_payload = Vec::with_capacity(8192);
|
||||
for i in 0..8192 {
|
||||
test_payload.push((i % 255) as u8);
|
||||
}
|
||||
let mut data = vec![0u8];
|
||||
data.extend(&test_payload);
|
||||
|
||||
let mut params = ActionParams::default();
|
||||
params.gas = U256::from(100_000);
|
||||
params.code = Some(Arc::new(code));
|
||||
params.data = Some(data);
|
||||
let mut ext = FakeExt::new();
|
||||
|
||||
let (gas_left, result) = {
|
||||
let mut interpreter = wasm_interpreter();
|
||||
let result = interpreter.exec(params, &mut ext).expect("Interpreter to execute without any errors");
|
||||
match result {
|
||||
GasLeft::Known(_) => { panic!("mem should return payload"); },
|
||||
GasLeft::NeedsReturn { gas_left: gas, data: result, apply_state: _apply } => (gas, result.to_vec()),
|
||||
}
|
||||
};
|
||||
|
||||
assert_eq!(result, test_payload);
|
||||
assert_eq!(gas_left, U256::from(71_940));
|
||||
}
|
||||
|
||||
// memmove test.
|
||||
#[test]
|
||||
fn memmove() {
|
||||
::ethcore_logger::init_log();
|
||||
let code = load_sample!("mem.wasm");
|
||||
|
||||
let mut test_payload = Vec::with_capacity(8192);
|
||||
for i in 0..8192 {
|
||||
test_payload.push((i % 255) as u8);
|
||||
}
|
||||
let mut data = vec![1u8];
|
||||
data.extend(&test_payload);
|
||||
|
||||
let mut params = ActionParams::default();
|
||||
params.gas = U256::from(100_000);
|
||||
params.code = Some(Arc::new(code));
|
||||
params.data = Some(data);
|
||||
let mut ext = FakeExt::new();
|
||||
|
||||
let (gas_left, result) = {
|
||||
let mut interpreter = wasm_interpreter();
|
||||
let result = interpreter.exec(params, &mut ext).expect("Interpreter to execute without any errors");
|
||||
match result {
|
||||
GasLeft::Known(_) => { panic!("mem should return payload"); },
|
||||
GasLeft::NeedsReturn { gas_left: gas, data: result, apply_state: _apply } => (gas, result.to_vec()),
|
||||
}
|
||||
};
|
||||
|
||||
assert_eq!(result, test_payload);
|
||||
assert_eq!(gas_left, U256::from(71_940));
|
||||
}
|
||||
|
||||
// memset test
|
||||
#[test]
|
||||
fn memset() {
|
||||
::ethcore_logger::init_log();
|
||||
let code = load_sample!("mem.wasm");
|
||||
|
||||
let mut params = ActionParams::default();
|
||||
params.gas = U256::from(100_000);
|
||||
params.code = Some(Arc::new(code));
|
||||
params.data = Some(vec![2u8, 228u8]);
|
||||
let mut ext = FakeExt::new();
|
||||
|
||||
let (gas_left, result) = {
|
||||
let mut interpreter = wasm_interpreter();
|
||||
let result = interpreter.exec(params, &mut ext).expect("Interpreter to execute without any errors");
|
||||
match result {
|
||||
GasLeft::Known(_) => { panic!("mem should return payload"); },
|
||||
GasLeft::NeedsReturn { gas_left: gas, data: result, apply_state: _apply } => (gas, result.to_vec()),
|
||||
}
|
||||
};
|
||||
|
||||
assert_eq!(result, vec![228u8; 8192]);
|
||||
assert_eq!(gas_left, U256::from(71_921));
|
||||
assert_eq!(gas_left, U256::from(84_223));
|
||||
}
|
||||
|
||||
// math_* tests check the ability of wasm contract to perform big integer operations
|
||||
@ -664,7 +570,7 @@ fn math_add() {
|
||||
U256::from_dec_str("1888888888888888888888888888887").unwrap(),
|
||||
(&result[..]).into()
|
||||
);
|
||||
assert_eq!(gas_left, U256::from(95_384));
|
||||
assert_eq!(gas_left, U256::from(93_818));
|
||||
}
|
||||
|
||||
// multiplication
|
||||
@ -686,7 +592,7 @@ fn math_mul() {
|
||||
U256::from_dec_str("888888888888888888888888888887111111111111111111111111111112").unwrap(),
|
||||
(&result[..]).into()
|
||||
);
|
||||
assert_eq!(gas_left, U256::from(94_374));
|
||||
assert_eq!(gas_left, U256::from(93_304));
|
||||
}
|
||||
|
||||
// subtraction
|
||||
@ -708,7 +614,7 @@ fn math_sub() {
|
||||
U256::from_dec_str("111111111111111111111111111111").unwrap(),
|
||||
(&result[..]).into()
|
||||
);
|
||||
assert_eq!(gas_left, U256::from(95_372));
|
||||
assert_eq!(gas_left, U256::from(93_831));
|
||||
}
|
||||
|
||||
// subtraction with overflow
|
||||
@ -750,7 +656,7 @@ fn math_div() {
|
||||
U256::from_dec_str("1125000").unwrap(),
|
||||
(&result[..]).into()
|
||||
);
|
||||
assert_eq!(gas_left, U256::from(88_356));
|
||||
assert_eq!(gas_left, U256::from(90_607));
|
||||
}
|
||||
|
||||
// This test checks the ability of wasm contract to invoke
|
||||
@ -838,7 +744,7 @@ fn externs() {
|
||||
"Gas limit requested and returned does not match"
|
||||
);
|
||||
|
||||
assert_eq!(gas_left, U256::from(95_321));
|
||||
assert_eq!(gas_left, U256::from(92_089));
|
||||
}
|
||||
|
||||
#[test]
|
||||
@ -864,7 +770,7 @@ fn embedded_keccak() {
|
||||
};
|
||||
|
||||
assert_eq!(H256::from_slice(&result), H256::from("68371d7e884c168ae2022c82bd837d51837718a7f7dfb7aa3f753074a35e1d87"));
|
||||
assert_eq!(gas_left, U256::from(81_067));
|
||||
assert_eq!(gas_left, U256::from(84_223));
|
||||
}
|
||||
|
||||
/// This test checks the correctness of log extern
|
||||
@ -899,5 +805,5 @@ fn events() {
|
||||
assert_eq!(&log_entry.data, b"gnihtemos");
|
||||
|
||||
assert_eq!(&result, b"gnihtemos");
|
||||
assert_eq!(gas_left, U256::from(79_206));
|
||||
assert_eq!(gas_left, U256::from(81_235));
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user