|
| 1 | +use std::collections::HashMap; |
| 2 | +use std::convert::TryInto; |
| 3 | +use std::fmt::{Write, Error as FmtError}; |
| 4 | +use std::result::Result as StdResult; |
| 5 | +use std::sync::atomic::{AtomicUsize, Ordering}; |
| 6 | +use std::sync::{Arc, Mutex}; |
| 7 | + |
| 8 | +use crate::usercalls::*; |
| 9 | + |
| 10 | +use fortanix_sgx_abi::*; |
| 11 | + |
| 12 | +use lazy_static::lazy_static; |
| 13 | + |
| 14 | +lazy_static! { |
| 15 | + static ref USERCALL_COUNTERS: [AtomicUsize; 17] = [ |
| 16 | + AtomicUsize::default(), |
| 17 | + AtomicUsize::default(), AtomicUsize::default(), AtomicUsize::default(), AtomicUsize::default(), |
| 18 | + AtomicUsize::default(), AtomicUsize::default(), AtomicUsize::default(), AtomicUsize::default(), |
| 19 | + AtomicUsize::default(), AtomicUsize::default(), AtomicUsize::default(), AtomicUsize::default(), |
| 20 | + AtomicUsize::default(), AtomicUsize::default(), AtomicUsize::default(), AtomicUsize::default(), |
| 21 | + ]; |
| 22 | + static ref TCS_MAPPINGS: Arc<Mutex<HashMap<usize, TcsStats>>> = Arc::new(Mutex::new(HashMap::new())); |
| 23 | +} |
| 24 | + |
| 25 | +#[derive(Clone, Default, Debug)] |
| 26 | +pub struct TcsStats { |
| 27 | + // Each index corresponds to that usercall number |
| 28 | + sync_calls: [usize; 17], |
| 29 | + // WAIT_NO, WAIT_INDEFINITE, other |
| 30 | + // There are 16 because there are 4 possible events to wait for |
| 31 | + waits: [(usize, usize, usize); 16], |
| 32 | + // targeted, not targeted |
| 33 | + sends: [usize; 16], |
| 34 | +} |
| 35 | + |
| 36 | +pub struct RunnerStats { |
| 37 | + pub sync_calls: HashMap<usize, TcsStats>, |
| 38 | + pub async_calls: [usize; 17], |
| 39 | +} |
| 40 | + |
| 41 | +impl RunnerStats { |
| 42 | + /// The total number of sync usercalls that have been handled as of this snapshot |
| 43 | + pub fn total_sync_calls(&self) -> usize { |
| 44 | + self.sync_calls.iter() |
| 45 | + .map(|(_, stats)| stats.sync_calls.iter().sum::<usize>()) |
| 46 | + .sum() |
| 47 | + } |
| 48 | + |
| 49 | + /// The total number of async usercalls that have been handled as of this snapshot |
| 50 | + pub fn total_async_calls(&self) -> usize { |
| 51 | + self.async_calls.iter().sum::<usize>() |
| 52 | + } |
| 53 | + |
| 54 | + /// The total number of usercalls that have been handled as of this snapshot |
| 55 | + pub fn total_calls(&self) -> usize { |
| 56 | + self.total_sync_calls() + self.total_async_calls() |
| 57 | + } |
| 58 | + |
| 59 | + // A "stock" formatting for this information |
| 60 | + pub fn pretty_format(&self) -> StdResult<String, FmtError> { |
| 61 | + let mut out = String::new(); |
| 62 | + let mut counts = USERCALL_COUNTERS.iter() |
| 63 | + .enumerate() |
| 64 | + .map(|(i, counter)| (i, counter.load(Ordering::Relaxed))) |
| 65 | + .filter(|(_, counter)| *counter > 0) |
| 66 | + .map(|(i, counter)| format!("{:?}: {}", abi::UsercallList::from_u64(i as _), counter)) |
| 67 | + .collect::<Vec<_>>() |
| 68 | + .join(", "); |
| 69 | + |
| 70 | + if counts.is_empty() { |
| 71 | + counts = "None".to_owned(); |
| 72 | + } |
| 73 | + |
| 74 | + writeln!(out, "Async usercall counts: {}", counts)?; |
| 75 | + writeln!(out, "Sync usercall count mappings:")?; |
| 76 | + for (addr, stats) in TCS_MAPPINGS.lock().map_err(|_| FmtError)?.iter() { |
| 77 | + if stats.should_print() { |
| 78 | + writeln!(out, "Address: 0x{:0>16x}", addr)?; |
| 79 | + write!(out, "{}", stats.format()?)?; |
| 80 | + } |
| 81 | + } |
| 82 | + |
| 83 | + Ok(out) |
| 84 | + } |
| 85 | +} |
| 86 | + |
| 87 | +fn mask_to_str(ev: usize) -> String { |
| 88 | + let mut events = vec!(); |
| 89 | + let ev = ev as u64; |
| 90 | + if ev & EV_CANCELQ_NOT_FULL != 0 { |
| 91 | + events.push("CANCELQ_NOT_FULL"); |
| 92 | + } |
| 93 | + if ev & EV_RETURNQ_NOT_EMPTY != 0 { |
| 94 | + events.push("RETURNQ_NOT_EMPTY"); |
| 95 | + } |
| 96 | + if ev & EV_USERCALLQ_NOT_FULL != 0 { |
| 97 | + events.push("USERCALLQ_NOT_FULL"); |
| 98 | + } |
| 99 | + if ev & EV_UNPARK != 0 { |
| 100 | + events.push("UNPARK"); |
| 101 | + } |
| 102 | + if events.is_empty() { |
| 103 | + events.push("NONE"); |
| 104 | + } |
| 105 | + events.join(" | ") |
| 106 | +} |
| 107 | + |
| 108 | +pub(crate) fn record_usercall( |
| 109 | + tcs_address: Option<TcsAddress>, |
| 110 | + p1: u64, |
| 111 | + p2: u64, |
| 112 | + p3: u64 |
| 113 | +) { |
| 114 | + // Map sync usercalls to the TCS that made them |
| 115 | + if let Some(tcs_address) = tcs_address { |
| 116 | + let mut mappings = TCS_MAPPINGS.lock().expect("poisoned mutex"); |
| 117 | + let entry = mappings.entry(tcs_address.0).or_default(); |
| 118 | + // type |
| 119 | + entry.sync_calls[p1 as usize] += 1; |
| 120 | + if p1 == 11 { |
| 121 | + // waits |
| 122 | + let mask = &mut entry.waits[p2 as usize]; |
| 123 | + match p3 { |
| 124 | + WAIT_NO => mask.0 += 1, |
| 125 | + WAIT_INDEFINITE => mask.1 += 1, |
| 126 | + _ => mask.2 += 1, |
| 127 | + } |
| 128 | + } else if p1 == 12 { |
| 129 | + // sends |
| 130 | + entry.sends[p2 as usize] += 1; // event mask |
| 131 | + } |
| 132 | + } else { |
| 133 | + // For async calls where we don't know the TCS, just store aggregates |
| 134 | + USERCALL_COUNTERS[p1 as usize].fetch_add(1, Ordering::Relaxed); |
| 135 | + } |
| 136 | +} |
| 137 | + |
| 138 | +impl TcsStats { |
| 139 | + fn should_print(&self) -> bool { |
| 140 | + self.sync_calls.iter().sum::<usize>() > 10 |
| 141 | + } |
| 142 | + |
| 143 | + pub fn format(&self) -> StdResult<String, FmtError> { |
| 144 | + let mut out = String::new(); |
| 145 | + writeln!(out, |
| 146 | + " Sync Totals: {}", |
| 147 | + self.sync_calls.iter() |
| 148 | + .enumerate() |
| 149 | + .filter(|(_, cnt)| **cnt > 0) |
| 150 | + .map(|(idx, cnt)| { |
| 151 | + format!("{:?}: {}", abi::UsercallList::from_u64(idx as u64), cnt) |
| 152 | + }) |
| 153 | + .collect::<Vec<_>>() |
| 154 | + .join(", ") |
| 155 | + )?; |
| 156 | + writeln!(out, |
| 157 | + " Wait Totals: {}", |
| 158 | + self.waits.iter() |
| 159 | + .enumerate() |
| 160 | + .filter(|(_, (a, b, c))| a + b + c > 0) |
| 161 | + .map(|(idx, cnt)| { |
| 162 | + format!("{}: WAIT_NO: {} WAIT_INDEFINITE: {} OTHER: {}", mask_to_str(idx), cnt.0, cnt.1, cnt.2) |
| 163 | + }) |
| 164 | + .collect::<Vec<_>>() |
| 165 | + .join("\n ") |
| 166 | + )?; |
| 167 | + writeln!(out, |
| 168 | + " Send Totals: {}", |
| 169 | + self.sends.iter() |
| 170 | + .enumerate() |
| 171 | + .filter(|(_, cnt)| **cnt > 0) |
| 172 | + .map(|(idx, cnt)| { |
| 173 | + format!("{}: {}", mask_to_str(idx), cnt) |
| 174 | + }) |
| 175 | + .collect::<Vec<_>>() |
| 176 | + .join(", ") |
| 177 | + )?; |
| 178 | + Ok(out) |
| 179 | + } |
| 180 | +} |
| 181 | + |
| 182 | +pub fn get_stats() -> RunnerStats { |
| 183 | + let async_calls: [usize; 17] = USERCALL_COUNTERS.iter() |
| 184 | + .map(|c| c.load(Ordering::Relaxed)) |
| 185 | + .collect::<Vec<_>>() |
| 186 | + .try_into() |
| 187 | + .unwrap(); |
| 188 | + |
| 189 | + assert!(async_calls.len() == 17); |
| 190 | + |
| 191 | + let sync_calls = { |
| 192 | + TCS_MAPPINGS.lock().expect("poison error").clone() |
| 193 | + }; |
| 194 | + |
| 195 | + RunnerStats { |
| 196 | + sync_calls, |
| 197 | + async_calls, |
| 198 | + } |
| 199 | +} |
0 commit comments