3 files changed, 53 insertions, 3 deletions
diff --git a/src/librustc/middle/trans/expr.rs b/src/librustc/middle/trans/expr.rs
index 995b2467888..0cf9c9a2242 100644
--- a/src/librustc/middle/trans/expr.rs
+++ b/src/librustc/middle/trans/expr.rs
@@ -119,6 +119,7 @@ use back::link;
 use lib::llvm::{ValueRef, llvm, SetLinkage, False};
 use lib;
 use metadata::csearch;
+use metadata::cstore;
 use middle::trans::_match;
 use middle::trans::adt;
 use middle::trans::asm;
@@ -1797,9 +1798,14 @@ pub fn trans_log_level(bcx: @mut Block) -> DatumBlock {
     let ccx = bcx.ccx();
 
     let (modpath, modname) = {
-        let path = &mut bcx.fcx.path;
-        let mut modpath = ~[path_mod(ccx.sess.ident_of(ccx.link_meta.name))];
-        for e in path.iter() {
+        let srccrate = match ccx.external_srcs.find(&bcx.fcx.id) {
+            Some(&src) => {
+                cstore::get_crate_data(ccx.sess.cstore, src.crate).name
+            }
+            None => ccx.link_meta.name,
+        };
+        let mut modpath = ~[path_mod(ccx.sess.ident_of(srccrate))];
+        for e in bcx.fcx.path.iter() {
             match *e {
                 path_mod(_) => { modpath.push(*e) }
                 _ => {}
diff --git a/src/test/auxiliary/logging_right_crate.rs b/src/test/auxiliary/logging_right_crate.rs
new file mode 100644
index 00000000000..84bf6f0240f
--- /dev/null
+++ b/src/test/auxiliary/logging_right_crate.rs
@@ -0,0 +1,14 @@
+// Copyright 2013 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+pub fn foo<T>() {
+    fn death() -> int { fail2!() }
+    debug2!("{:?}", (||{ death() })());
+}
diff --git a/src/test/run-pass/logging-right-crate.rs b/src/test/run-pass/logging-right-crate.rs
new file mode 100644
index 00000000000..21b45cec235
--- /dev/null
+++ b/src/test/run-pass/logging-right-crate.rs
@@ -0,0 +1,30 @@
+// Copyright 2013 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// aux-build:logging_right_crate.rs
+// xfail-fast
+// exec-env:RUST_LOG=logging-right-crate=debug
+
+// This is a test for issue #3046 to make sure that when we monomorphize a
+// function from one crate to another the right top-level logging name is
+// preserved.
+//
+// It used to be the case that if logging were turned on for this crate, all
+// monomorphized functions from other crates had logging turned on (their
+// logging module names were all incorrect). This test ensures that this no
+// longer happens by enabling logging for *this* crate and then invoking a
+// function in an external crate which will fail when logging is enabled.
+
+extern mod logging_right_crate;
+
+fn main() {
+    // this function fails if logging is turned on
+    logging_right_crate::foo::<int>();
+}