1 files changed, 67 insertions, 0 deletions
diff --git a/vendor/gimli/examples/simple.rs b/vendor/gimli/examples/simple.rs
new file mode 100644
index 000000000..b73ab7552
--- /dev/null
+++ b/vendor/gimli/examples/simple.rs
@@ -0,0 +1,67 @@
+//! A simple example of parsing `.debug_info`.
+
+use object::{Object, ObjectSection};
+use std::{borrow, env, fs};
+
+fn main() {
+    for path in env::args().skip(1) {
+        let file = fs::File::open(&path).unwrap();
+        let mmap = unsafe { memmap::Mmap::map(&file).unwrap() };
+        let object = object::File::parse(&*mmap).unwrap();
+        let endian = if object.is_little_endian() {
+            gimli::RunTimeEndian::Little
+        } else {
+            gimli::RunTimeEndian::Big
+        };
+        dump_file(&object, endian).unwrap();
+    }
+}
+
+fn dump_file(object: &object::File, endian: gimli::RunTimeEndian) -> Result<(), gimli::Error> {
+    // Load a section and return as `Cow<[u8]>`.
+    let load_section = |id: gimli::SectionId| -> Result<borrow::Cow<[u8]>, gimli::Error> {
+        match object.section_by_name(id.name()) {
+            Some(ref section) => Ok(section
+                .uncompressed_data()
+                .unwrap_or(borrow::Cow::Borrowed(&[][..]))),
+            None => Ok(borrow::Cow::Borrowed(&[][..])),
+        }
+    };
+
+    // Load all of the sections.
+    let dwarf_cow = gimli::Dwarf::load(&load_section)?;
+
+    // Borrow a `Cow<[u8]>` to create an `EndianSlice`.
+    let borrow_section: &dyn for<'a> Fn(
+        &'a borrow::Cow<[u8]>,
+    ) -> gimli::EndianSlice<'a, gimli::RunTimeEndian> =
+        &|section| gimli::EndianSlice::new(&*section, endian);
+
+    // Create `EndianSlice`s for all of the sections.
+    let dwarf = dwarf_cow.borrow(&borrow_section);
+
+    // Iterate over the compilation units.
+    let mut iter = dwarf.units();
+    while let Some(header) = iter.next()? {
+        println!(
+            "Unit at <.debug_info+0x{:x}>",
+            header.offset().as_debug_info_offset().unwrap().0
+        );
+        let unit = dwarf.unit(header)?;
+
+        // Iterate over the Debugging Information Entries (DIEs) in the unit.
+        let mut depth = 0;
+        let mut entries = unit.entries();
+        while let Some((delta_depth, entry)) = entries.next_dfs()? {
+            depth += delta_depth;
+            println!("<{}><{:x}> {}", depth, entry.offset().0, entry.tag());
+
+            // Iterate over the attributes in the DIE.
+            let mut attrs = entry.attrs();
+            while let Some(attr) = attrs.next()? {
+                println!("   {}: {:?}", attr.name(), attr.value());
+            }
+        }
+    }
+    Ok(())
+}