1--  GHDL Run Time (GRT) - Error handling.
2--  Copyright (C) 2002 - 2014 Tristan Gingold
3--
4--  This program is free software: you can redistribute it and/or modify
5--  it under the terms of the GNU General Public License as published by
6--  the Free Software Foundation, either version 2 of the License, or
7--  (at your option) any later version.
8--
9--  This program is distributed in the hope that it will be useful,
10--  but WITHOUT ANY WARRANTY; without even the implied warranty of
11--  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12--  GNU General Public License for more details.
13--
14--  You should have received a copy of the GNU General Public License
15--  along with this program.  If not, see <gnu.org/licenses>.
16--
17--  As a special exception, if other files instantiate generics from this
18--  unit, or you link this unit with other files to produce an executable,
19--  this unit does not by itself cause the resulting executable to be
20--  covered by the GNU General Public License. This exception does not
21--  however invalidate any other reasons why the executable file might be
22--  covered by the GNU Public License.
23
24with Grt.Errors; use Grt.Errors;
25with Grt.Backtraces;
26
27with Grt.Signals;
28with Grt.Rtis_Addr;
29with Grt.Threads;
30with Grt.Processes;
31with Grt.Rtis_Utils;
32
33package body Grt.Errors_Exec is
34   procedure Error_Call_Stack (Str : String; Skip : Natural)
35   is
36      Bt : Backtrace_Addrs;
37   begin
38      Save_Backtrace (Bt, Skip + 1);
39      Diag_C (Str);
40      Error_E_Call_Stack (Bt);
41   end Error_Call_Stack;
42
43   procedure Error_E_Call_Stack (Bt : Backtrace_Addrs)
44   is
45      use Grt.Signals;
46      use Grt.Rtis_Addr;
47      use Grt.Threads;
48      use Grt.Processes;
49      use Grt.Rtis_Utils;
50      Proc : Process_Acc;
51      Proc_Rti : Rti_Context;
52   begin
53      Newline_Err;
54
55      Proc := Get_Current_Process;
56      if Proc /= null then
57         Proc_Rti := Get_Rti_Context (Proc);
58         if Proc_Rti /= Null_Context then
59            Diag_C ("in process ");
60            Put (Get_Error_Stream, Proc_Rti);
61            Newline_Err;
62         end if;
63      end if;
64
65      Grt.Backtraces.Put_Err_Backtrace (Bt);
66
67      --  Should be able to call Error_E, but we don't want the newline.
68      Fatal_Error;
69   end Error_E_Call_Stack;
70
71   procedure Error_E_Call_Stack (Bt : Backtrace_Addrs_Acc) is
72   begin
73      if Bt /= null then
74         Error_E_Call_Stack (Bt.all);
75      else
76         Error_E;
77      end if;
78   end Error_E_Call_Stack;
79
80   procedure Grt_Overflow_Error (Bt : Backtrace_Addrs_Acc) is
81   begin
82      Error_S ("overflow detected");
83      Error_E_Call_Stack (Bt);
84   end Grt_Overflow_Error;
85
86   procedure Grt_Null_Access_Error (Bt : Backtrace_Addrs_Acc) is
87   begin
88      Error_S ("NULL access dereferenced");
89      Error_E_Call_Stack (Bt);
90   end Grt_Null_Access_Error;
91end Grt.Errors_Exec;
92