1 ------------------------------------------------------------------------------
3 -- GNAT COMPILER COMPONENTS --
9 -- Copyright (C) 2001-2002 Free Software Foundation, Inc. --
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 2, 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 COPYING. If not, write --
19 -- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
20 -- MA 02111-1307, USA. --
22 -- GNAT was originally developed by the GNAT team at New York University. --
23 -- Extensive contributions were provided by Ada Core Technologies Inc. --
25 ------------------------------------------------------------------------------
27 with Debug; use Debug;
28 with Osint; use Osint;
31 with System.WCh_Con; use System.WCh_Con;
33 package body Switch.B is
35 --------------------------
36 -- Scan_Binder_Switches --
37 --------------------------
39 procedure Scan_Binder_Switches (Switch_Chars : String) is
40 Ptr : Integer := Switch_Chars'First;
41 Max : Integer := Switch_Chars'Last;
45 -- Skip past the initial character (must be the switch character)
53 -- A little check, "gnat" at the start of a switch is not allowed
54 -- except for the compiler
56 if Switch_Chars'Last >= Ptr + 3
57 and then Switch_Chars (Ptr .. Ptr + 3) = "gnat"
59 Osint.Fail ("invalid switch: """, Switch_Chars, """"
60 & " (gnat not needed here)");
64 -- Loop to scan through switches given in switch string
67 C := Switch_Chars (Ptr);
71 -- Processing for A switch
76 Ada_Bind_File := True;
78 -- Processing for b switch
84 -- Processing for c switch
91 -- Processing for C switch
96 Ada_Bind_File := False;
98 -- Processing for d switch
102 -- Note: for the debug switch, the remaining characters in this
103 -- switch field must all be debug flags, since all valid switch
104 -- characters are also valid debug characters. This switch is not
105 -- documented on purpose because it is only used by the
108 -- Loop to scan out debug flags
112 C := Switch_Chars (Ptr);
113 exit when C = ASCII.NUL or else C = '/' or else C = '-';
115 if C in '1' .. '9' or else
116 C in 'a' .. 'z' or else
125 -- Make sure Zero_Cost_Exceptions is set if gnatdX set. This
126 -- is for backwards compatibility with old versions and usage.
128 if Debug_Flag_XX then
129 Zero_Cost_Exceptions_Set := True;
130 Zero_Cost_Exceptions_Val := True;
135 -- Processing for e switch
139 Elab_Dependency_Output := True;
141 -- Processing for E switch
145 Exception_Tracebacks := True;
147 -- Processing for f switch
151 Force_RM_Elaboration_Order := True;
153 -- Processing for g switch
159 C := Switch_Chars (Ptr);
161 if C in '0' .. '3' then
164 (Switch_Chars (Ptr)) - Character'Pos ('0');
172 -- Processing for h switch
176 Usage_Requested := True;
178 -- Processing for i switch
186 C := Switch_Chars (Ptr);
195 Identifier_Character_Set := C;
201 -- Processing for K switch
205 Output_Linker_Option_List := True;
207 -- Processing for l switch
211 Elab_Order_Output := True;
213 -- Processing for m switch
217 Scan_Pos (Switch_Chars, Max, Ptr, Maximum_Errors);
219 -- Processing for n switch
223 Bind_Main_Program := False;
225 -- Note: The -L option of the binder also implies -n, so
226 -- any change here must also be reflected in the processing
227 -- for -L that is found in Gnatbind.Scan_Bind_Arg.
229 -- Processing for o switch
234 if Output_File_Name_Present then
235 raise Too_Many_Output_Files;
238 Output_File_Name_Present := True;
241 -- Processing for O switch
245 Output_Object_List := True;
247 -- Processing for p switch
251 Pessimistic_Elab_Order := True;
253 -- Processing for q switch
257 Quiet_Output := True;
259 -- Processing for r switch
263 List_Restrictions := True;
265 -- Processing for s switch
270 Check_Source_Files := True;
272 -- Processing for t switch
276 Tolerate_Consistency_Errors := True;
278 -- Processing for T switch
282 Time_Slice_Set := True;
283 Scan_Nat (Switch_Chars, Max, Ptr, Time_Slice_Value);
285 -- Processing for v switch
289 Verbose_Mode := True;
291 -- Processing for w switch
295 -- For the binder we only allow suppress/error cases
299 case Switch_Chars (Ptr) is
302 Warning_Mode := Treat_As_Error;
305 Warning_Mode := Suppress;
313 -- Processing for W switch
318 for J in WC_Encoding_Method loop
319 if Switch_Chars (Ptr) = WC_Encoding_Letters (J) then
320 Wide_Character_Encoding_Method := J;
323 elsif J = WC_Encoding_Method'Last then
328 Upper_Half_Encoding :=
329 Wide_Character_Encoding_Method in
330 WC_Upper_Half_Encoding_Method;
334 -- Processing for x switch
338 All_Sources := False;
339 Check_Source_Files := False;
341 -- Processing for z switch
345 No_Main_Subprogram := True;
347 -- Ignore extra switch character
352 -- Ignore '-' extra switch caracter, only if it isn't followed by
353 -- 'RTS'. If it is, then we must process the 'RTS' switch
357 if Ptr + 3 <= Max and then
358 Switch_Chars (Ptr + 1 .. Ptr + 3) = "RTS"
362 if Switch_Chars (Ptr + 3) /= '=' or else
363 (Switch_Chars (Ptr + 3) = '='
364 and then Ptr + 4 > Max)
366 Osint.Fail ("missing path for --RTS");
369 -- valid --RTS switch
370 Opt.No_Stdinc := True;
371 Opt.RTS_Switch := True;
374 Src_Path_Name : String_Ptr := Get_RTS_Search_Dir
375 (Switch_Chars (Ptr + 4 .. Switch_Chars'Last), Include);
376 Lib_Path_Name : String_Ptr := Get_RTS_Search_Dir
377 (Switch_Chars (Ptr + 4 .. Switch_Chars'Last), Objects);
379 if Src_Path_Name /= null and then
380 Lib_Path_Name /= null
382 Add_Search_Dirs (Src_Path_Name, Include);
383 Add_Search_Dirs (Lib_Path_Name, Objects);
384 -- we can exit as there can not be another switch
387 elsif Src_Path_Name = null
388 and Lib_Path_Name = null then
389 Osint.Fail ("RTS path not valid: missing " &
390 "adainclude and adalib directories");
391 elsif Src_Path_Name = null then
392 Osint.Fail ("RTS path not valid: missing " &
393 "adainclude directory");
394 elsif Lib_Path_Name = null then
395 Osint.Fail ("RTS path not valid: missing " &
405 -- Anything else is an error (illegal switch character)
414 Osint.Fail ("invalid switch: ", (1 => C));
416 when Bad_Switch_Value =>
417 Osint.Fail ("numeric value too big for switch: ", (1 => C));
419 when Missing_Switch_Value =>
420 Osint.Fail ("missing numeric value for switch: ", (1 => C));
422 when Too_Many_Output_Files =>
423 Osint.Fail ("duplicate -o switch");
424 end Scan_Binder_Switches;