1 files changed, 37 insertions, 25 deletions
diff --git a/src/libstd/sys/unix/backtrace/printing/dladdr.rs b/src/libstd/sys/unix/backtrace/printing/dladdr.rs
index d9b759dc673..05a071a7978 100644
--- a/src/libstd/sys/unix/backtrace/printing/dladdr.rs
+++ b/src/libstd/sys/unix/backtrace/printing/dladdr.rs
@@ -9,33 +9,45 @@
 // except according to those terms.
 
 use io;
-use io::prelude::*;
+use intrinsics;
+use ffi::CStr;
 use libc;
+use sys::backtrace::BacktraceContext;
+use sys_common::backtrace::Frame;
 
-pub fn print(w: &mut Write, idx: isize, addr: *mut libc::c_void,
-             _symaddr: *mut libc::c_void) -> io::Result<()> {
-    use sys_common::backtrace::{output};
-    use intrinsics;
-    use ffi::CStr;
-
-    #[repr(C)]
-    struct Dl_info {
-        dli_fname: *const libc::c_char,
-        dli_fbase: *mut libc::c_void,
-        dli_sname: *const libc::c_char,
-        dli_saddr: *mut libc::c_void,
-    }
-    extern {
-        fn dladdr(addr: *const libc::c_void,
-                  info: *mut Dl_info) -> libc::c_int;
+pub fn resolve_symname<F>(frame: Frame,
+                          callback: F,
+                          _: &BacktraceContext) -> io::Result<()>
+    where F: FnOnce(Option<&str>) -> io::Result<()>
+{
+    unsafe {
+        let mut info: Dl_info = intrinsics::init();
+        let symname = if dladdr(frame.exact_position, &mut info) == 0 {
+            None
+        } else {
+            CStr::from_ptr(info.dli_sname).to_str().ok()
+        };
+        callback(symname)
     }
+}
 
-    let mut info: Dl_info = unsafe { intrinsics::init() };
-    if unsafe { dladdr(addr, &mut info) == 0 } {
-        output(w, idx,addr, None)
-    } else {
-        output(w, idx, addr, Some(unsafe {
-            CStr::from_ptr(info.dli_sname).to_bytes()
-        }))
-    }
+pub fn foreach_symbol_fileline<F>(_symbol_addr: Frame,
+                                  _f: F,
+                                  _: &BacktraceContext) -> io::Result<bool>
+    where F: FnMut(&[u8], libc::c_int) -> io::Result<()>
+{
+    Ok(false)
+}
+
+#[repr(C)]
+struct Dl_info {
+    dli_fname: *const libc::c_char,
+    dli_fbase: *mut libc::c_void,
+    dli_sname: *const libc::c_char,
+    dli_saddr: *mut libc::c_void,
+}
+
+extern {
+    fn dladdr(addr: *const libc::c_void,
+              info: *mut Dl_info) -> libc::c_int;
 }