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-rw-r--r--erts/preloaded/src/erl_prim_loader.erl12
1 files changed, 11 insertions, 1 deletions
diff --git a/erts/preloaded/src/erl_prim_loader.erl b/erts/preloaded/src/erl_prim_loader.erl
index c2fac8c0fc..7490954f2d 100644
--- a/erts/preloaded/src/erl_prim_loader.erl
+++ b/erts/preloaded/src/erl_prim_loader.erl
@@ -150,7 +150,17 @@ start_it("inet", Id, Pid, Hosts) ->
start_it("efile", Id, Pid, _Hosts) ->
process_flag(trap_exit, true),
{ok, Port} = prim_file:start(),
- init_ack(Pid),
+ %% Check that we started in a valid directory.
+ case prim_file:get_cwd(Port) of
+ {error, _} ->
+ %% At this point in the startup, we have no error_logger at all.
+ Report = "Invalid current directory or invalid filename "
+ "mode: loader cannot read current directory\n",
+ erlang:display(Report),
+ exit({error, invalid_current_directory});
+ _ ->
+ init_ack(Pid)
+ end,
MultiGet = case erlang:system_info(thread_pool_size) of
0 -> false;
_ -> true