unexpand: save stack size

oech3 · oech3 · commit 3d7e283d0ea3 · 2026-04-15T17:15:37.000+09:00
diff --git a/src/uu/unexpand/src/unexpand.rs b/src/uu/unexpand/src/unexpand.rs
@@ -595,7 +595,7 @@ fn unexpand_file(
 }
 
 fn unexpand(options: &Options) -> UResult<()> {
-    let mut buf = [0u8; 128];
+    let mut buf = vec![0u8; 128]; // stack spill with stack array and codegen-units=1 <https://github.com/rust-lang/rust/issues/148670>
     let mut output = BufWriter::new(stdout());
     let tab_config = &options.tab_config;
     let lastcol = if tab_config.tabstops.len() > 1

Original file line number	Diff line number	Diff line change
`@@ -595,7 +595,7 @@ fn unexpand_file(`
`595`	`595`	`}`
`596`	`596`
`597`	`597`	`fn unexpand(options: &Options) -> UResult<()> {`
`598`		`- let mut buf = [0u8; 128];`
	`598`	`+ let mut buf = vec![0u8; 128]; // stack spill with stack array and codegen-units=1 <https://github.com/rust-lang/rust/issues/148670>`
`599`	`599`	`let mut output = BufWriter::new(stdout());`
`600`	`600`	`let tab_config = &options.tab_config;`
`601`	`601`	`let lastcol = if tab_config.tabstops.len() > 1`