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
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
pub use self::inner::*;
#[macro_use]
#[cfg(not(feature = "evm-debug"))]
mod inner {
macro_rules! evm_debug {
($x: expr) => {}
}
pub struct EvmInformant;
impl EvmInformant {
pub fn new(_depth: usize) -> Self {
EvmInformant {}
}
pub fn done(&mut self) {}
}
}
#[macro_use]
#[cfg(feature = "evm-debug")]
mod inner {
use std::iter;
use std::collections::HashMap;
use std::time::{Instant, Duration};
use evm::interpreter::stack::Stack;
use evm::instructions::{Instruction, InstructionInfo, INSTRUCTIONS};
use evm::{CostType};
use util::U256;
macro_rules! evm_debug {
($x: expr) => {
$x
}
}
fn print(data: String) {
if cfg!(feature = "evm-debug-tests") {
println!("{}", data);
} else {
debug!(target: "evm", "{}", data);
}
}
pub struct EvmInformant {
spacing: String,
last_instruction: Instant,
stats: HashMap<Instruction, Stats>,
}
impl EvmInformant {
fn color(instruction: Instruction, name: &str) -> String {
let c = instruction as usize % 6;
let colors = [31, 34, 33, 32, 35, 36];
format!("\x1B[1;{}m{}\x1B[0m", colors[c], name)
}
fn as_micro(duration: &Duration) -> u64 {
let mut sec = duration.as_secs();
let subsec = duration.subsec_nanos() as u64;
sec = sec.saturating_mul(1_000_000u64);
sec += subsec / 1_000;
sec
}
pub fn new(depth: usize) -> Self {
EvmInformant {
spacing: iter::repeat(".").take(depth).collect(),
last_instruction: Instant::now(),
stats: HashMap::new(),
}
}
pub fn before_instruction<Cost: CostType>(&mut self, pc: usize, instruction: Instruction, info: &InstructionInfo, current_gas: &Cost, stack: &Stack<U256>) {
let time = self.last_instruction.elapsed();
self.last_instruction = Instant::now();
print(format!("{}[0x{:<3x}][{:>19}(0x{:<2x}) Gas Left: {:6?} (Previous took: {:10}μs)",
&self.spacing,
pc,
Self::color(instruction, info.name),
instruction,
current_gas,
Self::as_micro(&time),
));
if info.args > 0 {
for (idx, item) in stack.peek_top(info.args).iter().enumerate() {
print(format!("{} |{:2}: {:?}", self.spacing, idx, item));
}
}
}
pub fn after_instruction(&mut self, instruction: Instruction) {
let mut stats = self.stats.entry(instruction).or_insert_with(|| Stats::default());
let took = self.last_instruction.elapsed();
stats.note(took);
}
pub fn done(&mut self) {
let infos = &*INSTRUCTIONS;
let mut stats: Vec<(_,_)> = self.stats.drain().collect();
stats.sort_by(|ref a, ref b| b.1.avg().cmp(&a.1.avg()));
print(format!("\n{}-------OPCODE STATS:", self.spacing));
for (instruction, stats) in stats.into_iter() {
let info = infos[instruction as usize];
print(format!("{}-------{:>19}(0x{:<2x}) count: {:4}, avg: {:10}μs",
self.spacing,
Self::color(instruction, info.name),
instruction,
stats.count,
stats.avg(),
));
}
}
}
struct Stats {
count: u64,
total_duration: Duration,
}
impl Default for Stats {
fn default() -> Self {
Stats {
count: 0,
total_duration: Duration::from_secs(0),
}
}
}
impl Stats {
fn note(&mut self, took: Duration) {
self.count += 1;
self.total_duration += took;
}
fn avg(&self) -> u64 {
EvmInformant::as_micro(&self.total_duration) / self.count
}
}
}