Eliminate run-time system crash in code:load_abs/1

The run-time system would terminate if code:load_abs/1 was
called with a filename containing any non-latin1 characters.
The reason is that code_server would attempt to construct a
module name from the filename using list_to_atom/1 and that
atoms currently are limited to the latin1 character set.

But how should the error be reported?

I have decided to that the simplest and least confusing way
is to move the call to list_to_atom/1 to 'code' module and
let it crash the calling process. The resulting stack back
trace will make it clear what the reason for the crash was.

1 files changed, 3 insertions, 1 deletions

diff --git a/lib/kernel/src/code.erl b/lib/kernel/src/code.erl
index 352c02562b..7d0102d4ef 100644
--- a/lib/kernel/src/code.erl
+++ b/lib/kernel/src/code.erl
@@ -142,7 +142,9 @@ ensure_loaded(Mod) when is_atom(Mod) ->
 %% XXX File as an atom is allowed only for backwards compatibility.
 -spec load_abs(Filename) -> load_ret() when
       Filename :: file:filename().
-load_abs(File) when is_list(File); is_atom(File) -> call({load_abs,File,[]}).
+load_abs(File) when is_list(File); is_atom(File) ->
+    Mod = list_to_atom(filename:basename(File)),
+    call({load_abs,File,Mod}).
 
 %% XXX Filename is also an atom(), e.g. 'cover_compiled'
 -spec load_abs(Filename :: loaded_filename(), Module :: module()) -> load_ret().