whatever

uwuwind/src/identify.rs

@@ -0,0 +1,36 @@
+use std::ffi::CStr;
+
+pub fn identify(addr: usize) -> Option<&'static CStr> {
+    unsafe {
+        let mut info: libc::Dl_info = std::mem::zeroed();
+
+        libc::dladdr(addr as _, &mut info);
+
+        if !info.dli_sname.is_null() {
+            let sym_name = CStr::from_ptr(info.dli_sname);
+            return Some(sym_name);
+        }
+
+        /*
+        let parse = |str| usize::from_str_radix(str, 16).ok();
+        let maps = std::fs::read_to_string("/proc/self/maps").unwrap();
+        maps.lines()
+            .filter_map(|line| {
+                let mut ws = line.split_ascii_whitespace();
+
+                let addr_range = ws.next()?;
+                let mut addr_range = addr_range.split("-");
+                let addr_range = (parse(addr_range.next()?)?)..(parse(addr_range.next()?)?);
+
+                if addr_range.contains(&addr) {
+                    ws.nth(4).map(ToOwned::to_owned)
+                } else {
+                    None
+                }
+            })
+            .next()
+             */
+
+        None
+    }
+}