Merge branch 'bjorn/line-numbers-in-exceptions/OTP-9468' into major

* bjorn/line-numbers-in-exceptions/OTP-9468: (51 commits)
  debugger: By default, only save non-tail-recursive calls
  debugger: Add line_number_SUITE
  debugger: Include line numbers in exceptions
  Update examples in the documentation to include line numbers
  Update documentation for erlang:raise/3 and erlang:get_stacktrace/0
  beam_lib: Retain the "Line" chunk when stripping BEAM files
  erl: Add +L to suppress loading of line number information
  compiler: Add no_line_info for suppressing line/1 instructions
  exception_SUITE: Test line numbers in exceptions
  common_test: Use line numbers in exceptions
  common_test tests: Don't do detailed testing of the stack backtrace
  test_server: Refactor init_per_testcase/3 into two functions
  Implement process_info(Pid, current_{location,stacktrace})
  beam_emu: Factor out saving of stack trace from save_stacktrace()
  compiler: Don't create filenames starting with "./"
  ops.tab: Remove line instructions before tail-recursive calls
  Lookup and include filenames and line numbers in exceptions
  Fix decrement of continuation pointers
  Refactor building of the exception stacktrace
  BEAM loader: Load the line table
  ...

2 files changed, 11 insertions, 5 deletions

diff --git a/lib/kernel/src/error_handler.erl b/lib/kernel/src/error_handler.erl
index e1f99bf417..a67b11a888 100644
--- a/lib/kernel/src/error_handler.erl
+++ b/lib/kernel/src/error_handler.erl
@@ -88,12 +88,12 @@ int() -> int.
 -spec crash(atom(), [term()]) -> no_return().
 
 crash(Fun, Args) ->
-    crash({Fun,Args}).
+    crash({Fun,Args,[]}).
 
 -spec crash(atom(), atom(), arity()) -> no_return().
 
 crash(M, F, A) ->
-    crash({M,F,A}).
+    crash({M,F,A,[]}).
 
 -spec crash(tuple()) -> no_return().
 
@@ -101,7 +101,8 @@ crash(Tuple) ->
     try erlang:error(undef)
     catch
 	error:undef ->
-	    erlang:raise(error, undef, [Tuple|tl(erlang:get_stacktrace())])
+	    Stk = [Tuple|tl(erlang:get_stacktrace())],
+	    erlang:raise(error, undef, Stk)
     end.
 
 %% If the code_server has not been started yet dynamic code loading
@@ -127,7 +128,7 @@ ensure_loaded(Module) ->
 -spec stub_function(atom(), atom(), [_]) -> no_return().
 
 stub_function(Mod, Func, Args) ->
-    exit({undef,[{Mod,Func,Args}]}).
+    exit({undef,[{Mod,Func,Args,[]}]}).
 
 check_inheritance(Module, Args) ->
     Attrs = erlang:get_module_info(Module, attributes),
diff --git a/lib/kernel/src/file.erl b/lib/kernel/src/file.erl
index 5e4e1b0ba8..706c60caaf 100644
--- a/lib/kernel/src/file.erl
+++ b/lib/kernel/src/file.erl
@@ -1163,7 +1163,7 @@ path_open_first([Path|Rest], Name, Mode, LastError) ->
 	{error, _} = Error ->
 	    Error;
 	FilePath ->
-	    FileName = filename:join(FilePath, Name),
+	    FileName = fname_join(FilePath, Name),
 	    case open(FileName, Mode) of
 		{ok, Fd} ->
 		    {ok, Fd, FileName};
@@ -1176,6 +1176,11 @@ path_open_first([Path|Rest], Name, Mode, LastError) ->
 path_open_first([], _Name, _Mode, LastError) ->
     {error, LastError}.
 
+fname_join(".", Name) ->
+    Name;
+fname_join(Dir, Name) ->
+    filename:join(Dir, Name).
+
 %%%-----------------------------------------------------------------
 %%% Utility functions.