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YJIT: Buffer writes to the perf map

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This commit is contained in:
Alan Wu 2025-10-22 16:48:27 -04:00
parent 3861918fd3
commit fee863b4df
Notes: git 2025-10-22 21:24:57 +00:00 
Merged: https://github.com/ruby/ruby/pull/14912
1 changed files with 1 additions and 1 deletions
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yjit/src/codegen.rs
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@ -438,7 +438,7 @@ impl<'a> JITState<'a> {
fn flush_perf_symbols(&self, cb: &CodeBlock) {
assert_eq!(0, self.perf_stack.len());
let path = format!("/tmp/perf-{}.map", std::process::id());
let mut f = std::fs::File::options().create(true).append(true).open(path).unwrap();
let mut f = std::io::BufWriter::new(std::fs::File::options().create(true).append(true).open(path).unwrap());
for sym in self.perf_map.borrow().iter() {
if let (start, Some(end), name) = sym {
// In case the code straddles two pages, part of it belongs to the symbol.