Document ARGV_INIT_ARRAY

leo60228 · leo60228 · commit e282b2227f4d · 2019-11-22T12:27:07.000-05:00
diff --git a/src/libstd/sys/unix/args.rs b/src/libstd/sys/unix/args.rs
@@ -78,6 +78,8 @@ mod imp {
         ARGV = argv;
     }
 
+    /// glibc passes argc, argv, and envp to functions in .init_array, as a non-standard extension.
+    /// This allows `std::env::args` to work even in a `cdylib`, as it does on macOS and Windows.
     #[cfg(all(target_os = "linux", target_env = "gnu"))]
     #[used]
     #[link_section = ".init_array.00099"]

Original file line number	Diff line number	Diff line change
`@@ -78,6 +78,8 @@ mod imp {`
`78`	`78`	`ARGV = argv;`
`79`	`79`	`}`
`80`	`80`
	`81`	`+ /// glibc passes argc, argv, and envp to functions in .init_array, as a non-standard extension.`
	`82`	+ /// This allows `std::env::args` to work even in a `cdylib`, as it does on macOS and Windows.
`81`	`83`	`#[cfg(all(target_os = "linux", target_env = "gnu"))]`
`82`	`84`	`#[used]`
`83`	`85`	`#[link_section = ".init_array.00099"]`