1 files changed, 23 insertions, 0 deletions
diff --git a/third_party/rust/goblin/examples/automagic.rs b/third_party/rust/goblin/examples/automagic.rs
new file mode 100644
index 0000000000..cd31fdeb92
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+++ b/third_party/rust/goblin/examples/automagic.rs
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+use std::default::Default;
+
+// demonstrates "automagical" elf32/64 switches via cfg on arch and pub use hacks.
+// SIZEOF_* will change depending on whether it's an x86_64 system or 32-bit x86, or really any cfg you can think of.
+// similarly the printers will be different, since they have different impls. #typepuns4life
+
+#[cfg(target_pointer_width = "64")]
+pub use goblin::elf64 as elf;
+
+#[cfg(target_pointer_width = "32")]
+pub use goblin::elf32 as elf;
+
+#[cfg(any(target_pointer_width = "64", target_pointer_width = "32"))]
+use crate::elf::{header, sym};
+
+#[cfg(any(target_pointer_width = "64", target_pointer_width = "32"))]
+fn main() {
+    let header: header::Header = Default::default();
+    let sym: sym::Sym = Default::default();
+    println!("header: {:?}, sym: {:?}", header, sym);
+    println!("sizeof header: {}", header::SIZEOF_EHDR);
+    println!("sizeof sym: {}", sym::SIZEOF_SYM);
+}