1------------------------------------------------------------------------------
2--                                                                          --
3--                         GNAT COMPILER COMPONENTS                         --
4--                                                                          --
5--                                D E B U G                                 --
6--                                                                          --
7--                                 S p e c                                  --
8--                                                                          --
9--          Copyright (C) 1992-2020, Free Software Foundation, Inc.         --
10--                                                                          --
11-- GNAT is free software;  you can  redistribute it  and/or modify it under --
12-- terms of the  GNU General Public License as published  by the Free Soft- --
13-- ware  Foundation;  either version 3,  or (at your option) any later ver- --
14-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
15-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
16-- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
17-- for  more details.  You should have  received  a copy of the GNU General --
18-- Public License  distributed with GNAT; see file COPYING3.  If not, go to --
19-- http://www.gnu.org/licenses for a complete copy of the license.          --
20--                                                                          --
21-- GNAT was originally developed  by the GNAT team at  New York University. --
22-- Extensive contributions were provided by Ada Core Technologies Inc.      --
23--                                                                          --
24------------------------------------------------------------------------------
25
26--  This package contains global flags used to control the inclusion
27--  of debugging code in various phases of the compiler. Some of these
28--  flags are also used by the binder and gnatmake.
29
30package Debug is
31   pragma Preelaborate;
32
33   -------------------------
34   -- Dynamic Debug Flags --
35   -------------------------
36
37   --  Flags that can be used to activate various specialized debugging output
38   --  information. The flags are preset to False, which corresponds to the
39   --  given output being suppressed. The individual flags can be turned on
40   --  using the undocumented switch dxxx where xxx is a string of letters for
41   --  flags to be turned on. Documentation on the current usage of these flags
42   --  is contained in the body of Debug rather than the spec, so that we don't
43   --  have to recompile the world when a new debug flag is added.
44
45   --  WARNING: There is a matching C declaration of a few flags in fe.h
46
47   Debug_Flag_A : Boolean := False;
48   Debug_Flag_B : Boolean := False;
49   Debug_Flag_C : Boolean := False;
50   Debug_Flag_D : Boolean := False;
51   Debug_Flag_E : Boolean := False;
52   Debug_Flag_F : Boolean := False;
53   Debug_Flag_G : Boolean := False;
54   Debug_Flag_H : Boolean := False;
55   Debug_Flag_I : Boolean := False;
56   Debug_Flag_J : Boolean := False;
57   Debug_Flag_K : Boolean := False;
58   Debug_Flag_L : Boolean := False;
59   Debug_Flag_M : Boolean := False;
60   Debug_Flag_N : Boolean := False;
61   Debug_Flag_O : Boolean := False;
62   Debug_Flag_P : Boolean := False;
63   Debug_Flag_Q : Boolean := False;
64   Debug_Flag_R : Boolean := False;
65   Debug_Flag_S : Boolean := False;
66   Debug_Flag_T : Boolean := False;
67   Debug_Flag_U : Boolean := False;
68   Debug_Flag_V : Boolean := False;
69   Debug_Flag_W : Boolean := False;
70   Debug_Flag_X : Boolean := False;
71   Debug_Flag_Y : Boolean := False;
72   Debug_Flag_Z : Boolean := False;
73
74   Debug_Flag_AA : Boolean := False;
75   Debug_Flag_BB : Boolean := False;
76   Debug_Flag_CC : Boolean := False;
77   Debug_Flag_DD : Boolean := False;
78   Debug_Flag_EE : Boolean := False;
79   Debug_Flag_FF : Boolean := False;
80   Debug_Flag_GG : Boolean := False;
81   Debug_Flag_HH : Boolean := False;
82   Debug_Flag_II : Boolean := False;
83   Debug_Flag_JJ : Boolean := False;
84   Debug_Flag_KK : Boolean := False;
85   Debug_Flag_LL : Boolean := False;
86   Debug_Flag_MM : Boolean := False;
87   Debug_Flag_NN : Boolean := False;
88   Debug_Flag_OO : Boolean := False;
89   Debug_Flag_PP : Boolean := False;
90   Debug_Flag_QQ : Boolean := False;
91   Debug_Flag_RR : Boolean := False;
92   Debug_Flag_SS : Boolean := False;
93   Debug_Flag_TT : Boolean := False;
94   Debug_Flag_UU : Boolean := False;
95   Debug_Flag_VV : Boolean := False;
96   Debug_Flag_WW : Boolean := False;
97   Debug_Flag_XX : Boolean := False;
98   Debug_Flag_YY : Boolean := False;
99   Debug_Flag_ZZ : Boolean := False;
100
101   Debug_Flag_1 : Boolean := False;
102   Debug_Flag_2 : Boolean := False;
103   Debug_Flag_3 : Boolean := False;
104   Debug_Flag_4 : Boolean := False;
105   Debug_Flag_5 : Boolean := False;
106   Debug_Flag_6 : Boolean := False;
107   Debug_Flag_7 : Boolean := False;
108   Debug_Flag_8 : Boolean := False;
109   Debug_Flag_9 : Boolean := False;
110
111   Debug_Flag_Dot_A : Boolean := False;
112   Debug_Flag_Dot_B : Boolean := False;
113   Debug_Flag_Dot_C : Boolean := False;
114   Debug_Flag_Dot_D : Boolean := False;
115   Debug_Flag_Dot_E : Boolean := False;
116   Debug_Flag_Dot_F : Boolean := False;
117   Debug_Flag_Dot_G : Boolean := False;
118   Debug_Flag_Dot_H : Boolean := False;
119   Debug_Flag_Dot_I : Boolean := False;
120   Debug_Flag_Dot_J : Boolean := False;
121   Debug_Flag_Dot_K : Boolean := False;
122   Debug_Flag_Dot_L : Boolean := False;
123   Debug_Flag_Dot_M : Boolean := False;
124   Debug_Flag_Dot_N : Boolean := False;
125   Debug_Flag_Dot_O : Boolean := False;
126   Debug_Flag_Dot_P : Boolean := False;
127   Debug_Flag_Dot_Q : Boolean := False;
128   Debug_Flag_Dot_R : Boolean := False;
129   Debug_Flag_Dot_S : Boolean := False;
130   Debug_Flag_Dot_T : Boolean := False;
131   Debug_Flag_Dot_U : Boolean := False;
132   Debug_Flag_Dot_V : Boolean := False;
133   Debug_Flag_Dot_W : Boolean := False;
134   Debug_Flag_Dot_X : Boolean := False;
135   Debug_Flag_Dot_Y : Boolean := False;
136   Debug_Flag_Dot_Z : Boolean := False;
137
138   Debug_Flag_Dot_AA : Boolean := False;
139   Debug_Flag_Dot_BB : Boolean := False;
140   Debug_Flag_Dot_CC : Boolean := False;
141   Debug_Flag_Dot_DD : Boolean := False;
142   Debug_Flag_Dot_EE : Boolean := False;
143   Debug_Flag_Dot_FF : Boolean := False;
144   Debug_Flag_Dot_GG : Boolean := False;
145   Debug_Flag_Dot_HH : Boolean := False;
146   Debug_Flag_Dot_II : Boolean := False;
147   Debug_Flag_Dot_JJ : Boolean := False;
148   Debug_Flag_Dot_KK : Boolean := False;
149   Debug_Flag_Dot_LL : Boolean := False;
150   Debug_Flag_Dot_MM : Boolean := False;
151   Debug_Flag_Dot_NN : Boolean := False;
152   Debug_Flag_Dot_OO : Boolean := False;
153   Debug_Flag_Dot_PP : Boolean := False;
154   Debug_Flag_Dot_QQ : Boolean := False;
155   Debug_Flag_Dot_RR : Boolean := False;
156   Debug_Flag_Dot_SS : Boolean := False;
157   Debug_Flag_Dot_TT : Boolean := False;
158   Debug_Flag_Dot_UU : Boolean := False;
159   Debug_Flag_Dot_VV : Boolean := False;
160   Debug_Flag_Dot_WW : Boolean := False;
161   Debug_Flag_Dot_XX : Boolean := False;
162   Debug_Flag_Dot_YY : Boolean := False;
163   Debug_Flag_Dot_ZZ : Boolean := False;
164
165   Debug_Flag_Dot_1 : Boolean := False;
166   Debug_Flag_Dot_2 : Boolean := False;
167   Debug_Flag_Dot_3 : Boolean := False;
168   Debug_Flag_Dot_4 : Boolean := False;
169   Debug_Flag_Dot_5 : Boolean := False;
170   Debug_Flag_Dot_6 : Boolean := False;
171   Debug_Flag_Dot_7 : Boolean := False;
172   Debug_Flag_Dot_8 : Boolean := False;
173   Debug_Flag_Dot_9 : Boolean := False;
174
175   Debug_Flag_Underscore_A : Boolean := False;
176   Debug_Flag_Underscore_B : Boolean := False;
177   Debug_Flag_Underscore_C : Boolean := False;
178   Debug_Flag_Underscore_D : Boolean := False;
179   Debug_Flag_Underscore_E : Boolean := False;
180   Debug_Flag_Underscore_F : Boolean := False;
181   Debug_Flag_Underscore_G : Boolean := False;
182   Debug_Flag_Underscore_H : Boolean := False;
183   Debug_Flag_Underscore_I : Boolean := False;
184   Debug_Flag_Underscore_J : Boolean := False;
185   Debug_Flag_Underscore_K : Boolean := False;
186   Debug_Flag_Underscore_L : Boolean := False;
187   Debug_Flag_Underscore_M : Boolean := False;
188   Debug_Flag_Underscore_N : Boolean := False;
189   Debug_Flag_Underscore_O : Boolean := False;
190   Debug_Flag_Underscore_P : Boolean := False;
191   Debug_Flag_Underscore_Q : Boolean := False;
192   Debug_Flag_Underscore_R : Boolean := False;
193   Debug_Flag_Underscore_S : Boolean := False;
194   Debug_Flag_Underscore_T : Boolean := False;
195   Debug_Flag_Underscore_U : Boolean := False;
196   Debug_Flag_Underscore_V : Boolean := False;
197   Debug_Flag_Underscore_W : Boolean := False;
198   Debug_Flag_Underscore_X : Boolean := False;
199   Debug_Flag_Underscore_Y : Boolean := False;
200   Debug_Flag_Underscore_Z : Boolean := False;
201
202   Debug_Flag_Underscore_AA : Boolean := False;
203   Debug_Flag_Underscore_BB : Boolean := False;
204   Debug_Flag_Underscore_CC : Boolean := False;
205   Debug_Flag_Underscore_DD : Boolean := False;
206   Debug_Flag_Underscore_EE : Boolean := False;
207   Debug_Flag_Underscore_FF : Boolean := False;
208   Debug_Flag_Underscore_GG : Boolean := False;
209   Debug_Flag_Underscore_HH : Boolean := False;
210   Debug_Flag_Underscore_II : Boolean := False;
211   Debug_Flag_Underscore_JJ : Boolean := False;
212   Debug_Flag_Underscore_KK : Boolean := False;
213   Debug_Flag_Underscore_LL : Boolean := False;
214   Debug_Flag_Underscore_MM : Boolean := False;
215   Debug_Flag_Underscore_NN : Boolean := False;
216   Debug_Flag_Underscore_OO : Boolean := False;
217   Debug_Flag_Underscore_PP : Boolean := False;
218   Debug_Flag_Underscore_QQ : Boolean := False;
219   Debug_Flag_Underscore_RR : Boolean := False;
220   Debug_Flag_Underscore_SS : Boolean := False;
221   Debug_Flag_Underscore_TT : Boolean := False;
222   Debug_Flag_Underscore_UU : Boolean := False;
223   Debug_Flag_Underscore_VV : Boolean := False;
224   Debug_Flag_Underscore_WW : Boolean := False;
225   Debug_Flag_Underscore_XX : Boolean := False;
226   Debug_Flag_Underscore_YY : Boolean := False;
227   Debug_Flag_Underscore_ZZ : Boolean := False;
228
229   Debug_Flag_Underscore_1 : Boolean := False;
230   Debug_Flag_Underscore_2 : Boolean := False;
231   Debug_Flag_Underscore_3 : Boolean := False;
232   Debug_Flag_Underscore_4 : Boolean := False;
233   Debug_Flag_Underscore_5 : Boolean := False;
234   Debug_Flag_Underscore_6 : Boolean := False;
235   Debug_Flag_Underscore_7 : Boolean := False;
236   Debug_Flag_Underscore_8 : Boolean := False;
237   Debug_Flag_Underscore_9 : Boolean := False;
238
239   procedure Set_Debug_Flag (C : Character; Val : Boolean := True);
240   --  Where C is 0-9, A-Z, or a-z, sets the corresponding debug flag to
241   --  the given value. In the checks off version of debug, the call to
242   --  Set_Debug_Flag is always a null operation.
243
244   procedure Set_Dotted_Debug_Flag (C : Character; Val : Boolean := True);
245   --  Where C is 0-9, A-Z, or a-z, sets the corresponding dotted debug
246   --  flag (e.g. call with C = 'a' for the .a flag).
247
248   procedure Set_Underscored_Debug_Flag (C : Character; Val : Boolean := True);
249   --  Where C is 0-9, A-Z, or a-z, sets the corresponding underscored debug
250   --  flag (e.g. call with C = 'a' for the _a flag).
251
252end Debug;
253