1 ------------------------------------------------------------------------------
3 -- GNAT COMPILER COMPONENTS --
9 -- Copyright (C) 1992-2004 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 Butil; use Butil;
28 with Debug; use Debug;
29 with Fname; use Fname;
30 with Namet; use Namet;
32 with Osint; use Osint;
33 with Output; use Output;
38 -- Make control characters visible
40 -- The following variable records which characters currently are
41 -- used as line type markers in the ALI file. This is used in
42 -- Scan_ALI to detect (or skip) invalid lines.
44 Known_ALI_Lines : constant array (Character range 'A' .. 'Z') of Boolean :=
45 ('V' => True, -- version
46 'M' => True, -- main program
47 'A' => True, -- argument
48 'P' => True, -- program
49 'R' => True, -- restriction
50 'I' => True, -- interrupt
53 'L' => True, -- linker option
54 'E' => True, -- external
55 'D' => True, -- dependency
63 procedure Initialize_ALI is
65 -- When (re)initializing ALI data structures the ALI user expects to
66 -- get a fresh set of data structures. Thus we first need to erase the
67 -- marks put in the name table by the previous set of ALI routine calls.
68 -- These two loops are empty and harmless the first time in.
70 for J in ALIs.First .. ALIs.Last loop
71 Set_Name_Table_Info (ALIs.Table (J).Afile, 0);
74 for J in Units.First .. Units.Last loop
75 Set_Name_Table_Info (Units.Table (J).Uname, 0);
78 -- Free argument table strings
80 for J in Args.First .. Args.Last loop
81 Free (Args.Table (J));
84 -- Initialize all tables
96 -- Add dummy zero'th item in Linker_Options for the sort function
98 Linker_Options.Increment_Last;
100 -- Initialize global variables recording cumulative options in all
101 -- ALI files that are read for a given processing run in gnatbind.
103 Dynamic_Elaboration_Checks_Specified := False;
104 Float_Format_Specified := ' ';
105 Locking_Policy_Specified := ' ';
106 No_Normalize_Scalars_Specified := False;
107 No_Object_Specified := False;
108 Normalize_Scalars_Specified := False;
109 Queuing_Policy_Specified := ' ';
110 Static_Elaboration_Model_Used := False;
111 Task_Dispatching_Policy_Specified := ' ';
112 Unreserve_All_Interrupts_Specified := False;
113 Zero_Cost_Exceptions_Specified := False;
125 Read_Xref : Boolean := False;
126 Read_Lines : String := "";
127 Ignore_Lines : String := "X";
128 Ignore_Errors : Boolean := False) return ALI_Id
130 P : Text_Ptr := T'First;
131 Line : Logical_Line_Number := 1;
137 Ignore : array (Character range 'A' .. 'Z') of Boolean;
138 -- Ignore (X) is set to True if lines starting with X are to
139 -- be ignored by Scan_ALI and skipped, and False if the lines
140 -- are to be read and processed.
142 Restrictions_Initial : Rident.Restrictions_Info;
143 pragma Warnings (Off, Restrictions_Initial);
144 -- This variable, which should really be a constant (but that's not
145 -- allowed by the language) is used only for initialization, and the
146 -- reason we are declaring it is to get the default initialization
147 -- set for the object.
149 Bad_ALI_Format : exception;
150 -- Exception raised by Fatal_Error if Err is True
152 function At_Eol return Boolean;
153 -- Test if at end of line
155 function At_End_Of_Field return Boolean;
156 -- Test if at end of line, or if at blank or horizontal tab
158 procedure Check_At_End_Of_Field;
159 -- Check if we are at end of field, fatal error if not
161 procedure Checkc (C : Character);
162 -- Check next character is C. If so bump past it, if not fatal error
164 procedure Check_Unknown_Line;
165 -- If Ignore_Errors mode, then checks C to make sure that it is not
166 -- an unknown ALI line type characters, and if so, skips lines
167 -- until the first character of the line is one of these characters,
168 -- at which point it does a Getc to put that character in C. The
169 -- call has no effect if C is already an appropriate character.
170 -- If not in Ignore_Errors mode, a fatal error is signalled if the
171 -- line is unknown. Note that if C is an EOL on entry, the line is
172 -- skipped (it is assumed that blank lines are never significant).
173 -- If C is EOF on entry, the call has no effect (it is assumed that
174 -- the caller will properly handle this case).
176 procedure Fatal_Error;
177 -- Generate fatal error message for badly formatted ALI file if
178 -- Err is false, or raise Bad_ALI_Format if Err is True.
180 procedure Fatal_Error_Ignore;
181 pragma Inline (Fatal_Error_Ignore);
182 -- In Ignore_Errors mode, has no effect, otherwise same as Fatal_Error
184 function Getc return Character;
185 -- Get next character, bumping P past the character obtained
188 (Lower : Boolean := False;
189 Ignore_Spaces : Boolean := False) return Name_Id;
190 -- Skip blanks, then scan out a name (name is left in Name_Buffer with
191 -- length in Name_Len, as well as being returned in Name_Id form).
192 -- If Lower is set to True then the Name_Buffer will be converted to
193 -- all lower case, for systems where file names are not case sensitive.
194 -- This ensures that gnatbind works correctly regardless of the case
195 -- of the file name on all systems. The name is terminated by a either
196 -- white space (when Ignore_Spaces is False) or a typeref bracket or
197 -- an equal sign except for the special case of an operator name
198 -- starting with a double quite which is terminated by another double
201 function Get_Nat return Nat;
202 -- Skip blanks, then scan out an unsigned integer value in Nat range.
204 function Get_Stamp return Time_Stamp_Type;
205 -- Skip blanks, then scan out a time stamp
207 function Nextc return Character;
208 -- Return current character without modifying pointer P
211 -- Skip past spaces, then skip past end of line (fatal error if not
212 -- at end of line). Also skips past any following blank lines.
215 -- Skip rest of current line and any following blank lines.
217 procedure Skip_Space;
218 -- Skip past white space (blanks or horizontal tab)
221 -- Skip past next character, does not affect value in C. This call
222 -- is like calling Getc and ignoring the returned result.
224 ---------------------
225 -- At_End_Of_Field --
226 ---------------------
228 function At_End_Of_Field return Boolean is
237 function At_Eol return Boolean is
239 return Nextc = EOF or else Nextc = CR or else Nextc = LF;
242 ---------------------------
243 -- Check_At_End_Of_Field --
244 ---------------------------
246 procedure Check_At_End_Of_Field is
248 if not At_End_Of_Field then
249 if Ignore_Errors then
250 while Nextc > ' ' loop
257 end Check_At_End_Of_Field;
263 procedure Checkc (C : Character) is
267 elsif Ignore_Errors then
274 ------------------------
275 -- Check_Unknown_Line --
276 ------------------------
278 procedure Check_Unknown_Line is
280 while C not in 'A' .. 'Z'
281 or else not Known_ALI_Lines (C)
283 if C = CR or else C = LF then
290 elsif Ignore_Errors then
298 end Check_Unknown_Line;
304 procedure Fatal_Error is
309 procedure Wchar (C : Character);
310 -- Write a single character, replacing horizontal tab by spaces
312 procedure Wchar (C : Character) is
317 exit when Col mod 8 = 0;
326 -- Start of processing for Fatal_Error
330 raise Bad_ALI_Format;
334 Write_Str ("fatal error: file ");
336 Write_Str (" is incorrectly formatted");
339 ("make sure you are using consistent versions of gcc/gnatbind");
342 -- Find start of line
347 and then T (Ptr1 - 1) /= CR
348 and then T (Ptr1 - 1) /= LF
353 Write_Int (Int (Line));
368 and then T (Ptr2) /= CR
369 and then T (Ptr2) /= LF
381 if T (Ptr1) = HT then
393 Exit_Program (E_Fatal);
396 ------------------------
397 -- Fatal_Error_Ignore --
398 ------------------------
400 procedure Fatal_Error_Ignore is
402 if not Ignore_Errors then
405 end Fatal_Error_Ignore;
412 (Lower : Boolean := False;
413 Ignore_Spaces : Boolean := False) return Name_Id
420 if Ignore_Errors then
428 Name_Len := Name_Len + 1;
429 Name_Buffer (Name_Len) := Getc;
431 exit when At_End_Of_Field and not Ignore_Spaces;
433 if Name_Buffer (1) = '"' then
434 exit when Name_Len > 1 and then Name_Buffer (Name_Len) = '"';
437 exit when (At_End_Of_Field and not Ignore_Spaces)
438 or else Nextc = '(' or else Nextc = ')'
439 or else Nextc = '{' or else Nextc = '}'
440 or else Nextc = '<' or else Nextc = '>'
445 -- Convert file name to all lower case if file names are not case
446 -- sensitive. This ensures that we handle names in the canonical
447 -- lower case format, regardless of the actual case.
449 if Lower and not File_Names_Case_Sensitive then
450 Canonical_Case_File_Name (Name_Buffer (1 .. Name_Len));
460 function Get_Nat return Nat is
468 V := V * 10 + (Character'Pos (Getc) - Character'Pos ('0'));
469 exit when At_End_Of_Field;
470 exit when Nextc < '0' or Nextc > '9';
480 function Get_Stamp return Time_Stamp_Type is
488 if Ignore_Errors then
489 return Dummy_Time_Stamp;
495 -- Following reads old style time stamp missing first two digits
497 if Nextc in '7' .. '9' then
502 -- Normal case of full year in time stamp
508 for J in Start .. T'Last loop
519 function Getc return Character is
533 function Nextc return Character is
542 procedure Skip_Eol is
547 if Ignore_Errors then
548 while not At_Eol loop
556 -- Loop to skip past blank lines (first time through skips this EOL)
558 while Nextc < ' ' and then Nextc /= EOF loop
571 procedure Skip_Line is
573 while not At_Eol loop
584 procedure Skip_Space is
586 while Nextc = ' ' or else Nextc = HT loop
602 -- Start of processing for Scan_ALI
605 First_Sdep_Entry := Sdep.Last + 1;
607 -- Acquire lines to be ignored
610 Ignore := ('U' | 'W' | 'D' | 'X' => False, others => True);
612 -- Read_Lines parameter given
614 elsif Read_Lines /= "" then
615 Ignore := ('U' => False, others => True);
617 for J in Read_Lines'Range loop
618 Ignore (Read_Lines (J)) := False;
621 -- Process Ignore_Lines parameter
624 Ignore := (others => False);
626 for J in Ignore_Lines'Range loop
627 pragma Assert (Ignore_Lines (J) /= 'U');
628 Ignore (Ignore_Lines (J)) := True;
632 -- Setup ALI Table entry with appropriate defaults
636 Set_Name_Table_Info (F, Int (Id));
640 Compile_Errors => False,
641 First_Interrupt_State => Interrupt_States.Last + 1,
642 First_Sdep => No_Sdep_Id,
643 First_Unit => No_Unit_Id,
645 Last_Interrupt_State => Interrupt_States.Last,
646 Last_Sdep => No_Sdep_Id,
647 Last_Unit => No_Unit_Id,
648 Locking_Policy => ' ',
650 Main_Program => None,
652 Normalize_Scalars => False,
653 Ofile_Full_Name => Full_Object_File_Name,
654 Queuing_Policy => ' ',
655 Restrictions => Restrictions_Initial,
657 Task_Dispatching_Policy => ' ',
658 Time_Slice_Value => -1,
660 Unit_Exception_Table => False,
661 Ver => (others => ' '),
664 Zero_Cost_Exceptions => False);
666 -- Now we acquire the input lines from the ALI file. Note that the
667 -- convention in the following code is that as we enter each section,
668 -- C is set to contain the first character of the following line.
673 -- Acquire library version
677 -- The V line missing really indicates trouble, most likely it
678 -- means we don't have an ALI file at all, so here we give a
679 -- fatal error even if we are in Ignore_Errors mode.
683 elsif Ignore ('V') then
691 for J in 1 .. Ver_Len_Max loop
694 ALIs.Table (Id).Ver (J) := C;
695 ALIs.Table (Id).Ver_Len := J;
704 -- Acquire main program line if present
717 ALIs.Table (Id).Main_Program := Func;
719 ALIs.Table (Id).Main_Program := Proc;
729 ALIs.Table (Id).Main_Priority := Get_Nat;
737 ALIs.Table (Id).Time_Slice_Value := Get_Nat;
744 ALIs.Table (Id).WC_Encoding := Getc;
753 -- Acquire argument lines
755 First_Arg := Args.Last + 1;
759 exit A_Loop when C /= 'A';
768 while not At_Eol loop
769 Name_Len := Name_Len + 1;
770 Name_Buffer (Name_Len) := Getc;
774 Args.Table (Args.Last) := new String'(Name_Buffer (1 .. Name_Len));
787 if Ignore_Errors then
807 while not At_Eol loop
816 ALIs.Table (Id).Compile_Errors := True;
818 -- Processing for FD/FG/FI
821 Float_Format_Specified := Getc;
822 ALIs.Table (Id).Float_Format := Float_Format_Specified;
827 Locking_Policy_Specified := Getc;
828 ALIs.Table (Id).Locking_Policy := Locking_Policy_Specified;
830 -- Processing for flags starting with N
838 ALIs.Table (Id).No_Object := True;
839 No_Object_Specified := True;
844 No_Run_Time_Mode := True;
845 Configurable_Run_Time_Mode := True;
850 ALIs.Table (Id).Normalize_Scalars := True;
851 Normalize_Scalars_Specified := True;
854 -- Invalid switch starting with N
863 Queuing_Policy_Specified := Getc;
864 ALIs.Table (Id).Queuing_Policy := Queuing_Policy_Specified;
866 -- Processing for flags starting with S
874 ALIs.Table (Id).Interface := True;
879 Opt.Sec_Stack_Used := True;
881 -- Invalid switch starting with S
890 Task_Dispatching_Policy_Specified := Getc;
891 ALIs.Table (Id).Task_Dispatching_Policy :=
892 Task_Dispatching_Policy_Specified;
894 -- Processing for switch starting with U
902 Unreserve_All_Interrupts_Specified := True;
907 ALIs.Table (Id).Unit_Exception_Table := True;
909 -- Invalid switches starting with U
921 ALIs.Table (Id).Zero_Cost_Exceptions := True;
922 Zero_Cost_Exceptions_Specified := True;
936 No_Normalize_Scalars_Specified := True;
945 -- Acquire restrictions line
948 if Ignore_Errors then
963 -- Process restrictions line
966 Scan_Restrictions : declare
967 Save_R : constant Restrictions_Info := Cumulative_Restrictions;
968 -- Save cumulative restrictions in case we have a fatal error
970 Bad_R_Line : exception;
971 -- Signal bad restrictions line
977 -- Acquire information for boolean restrictions
979 for R in All_Boolean_Restrictions loop
984 ALIs.Table (Id).Restrictions.Violated (R) := True;
985 Cumulative_Restrictions.Violated (R) := True;
988 ALIs.Table (Id).Restrictions.Set (R) := True;
989 Cumulative_Restrictions.Set (R) := True;
999 -- Acquire information for parameter restrictions
1001 for RP in All_Parameter_Restrictions loop
1003 -- Acquire restrictions pragma information
1010 ALIs.Table (Id).Restrictions.Set (RP) := True;
1013 N : constant Integer := Integer (Get_Nat);
1015 ALIs.Table (Id).Restrictions.Value (RP) := N;
1017 if Cumulative_Restrictions.Set (RP) then
1018 Cumulative_Restrictions.Value (RP) :=
1020 (Cumulative_Restrictions.Value (RP), N);
1022 Cumulative_Restrictions.Set (RP) := True;
1023 Cumulative_Restrictions.Value (RP) := N;
1031 -- Acquire restrictions violations information
1038 ALIs.Table (Id).Restrictions.Violated (RP) := True;
1039 Cumulative_Restrictions.Violated (RP) := True;
1042 N : constant Integer := Integer (Get_Nat);
1043 pragma Unsuppress (Overflow_Check);
1046 ALIs.Table (Id).Restrictions.Count (RP) := N;
1048 if RP in Checked_Max_Parameter_Restrictions then
1049 Cumulative_Restrictions.Count (RP) :=
1051 (Cumulative_Restrictions.Count (RP), N);
1053 Cumulative_Restrictions.Count (RP) :=
1054 Cumulative_Restrictions.Count (RP) + N;
1058 when Constraint_Error =>
1060 -- A constraint error comes from the addition in
1061 -- the else branch. We reset to the maximum and
1062 -- indicate that the real value is now unknown.
1064 Cumulative_Restrictions.Value (RP) := Integer'Last;
1065 Cumulative_Restrictions.Unknown (RP) := True;
1070 ALIs.Table (Id).Restrictions.Unknown (RP) := True;
1071 Cumulative_Restrictions.Unknown (RP) := True;
1081 -- Here if error during scanning of restrictions line
1086 -- In Ignore_Errors mode, undo any changes to restrictions
1087 -- from this unit, and continue on.
1089 if Ignore_Errors then
1090 Cumulative_Restrictions := Save_R;
1091 ALIs.Table (Id).Restrictions := Restrictions_Initial;
1093 -- In normal mode, this is a fatal error
1099 end Scan_Restrictions;
1102 -- Acquire 'I' lines if present
1108 if Ignore ('I') then
1114 I_State : Character;
1123 Interrupt_States.Append (
1124 (Interrupt_Id => Int_Num,
1125 Interrupt_State => I_State,
1126 IS_Pragma_Line => Line_No));
1128 ALIs.Table (Id).Last_Interrupt_State := Interrupt_States.Last;
1136 -- Loop to acquire unit entries
1140 exit U_Loop when C /= 'U';
1142 -- Note: as per spec, we never ignore U lines
1146 Units.Increment_Last;
1148 if ALIs.Table (Id).First_Unit = No_Unit_Id then
1149 ALIs.Table (Id).First_Unit := Units.Last;
1152 Units.Table (Units.Last).Uname := Get_Name;
1153 Units.Table (Units.Last).Predefined := Is_Predefined_Unit;
1154 Units.Table (Units.Last).Internal := Is_Internal_Unit;
1155 Units.Table (Units.Last).My_ALI := Id;
1156 Units.Table (Units.Last).Sfile := Get_Name (Lower => True);
1157 Units.Table (Units.Last).Pure := False;
1158 Units.Table (Units.Last).Preelab := False;
1159 Units.Table (Units.Last).No_Elab := False;
1160 Units.Table (Units.Last).Shared_Passive := False;
1161 Units.Table (Units.Last).RCI := False;
1162 Units.Table (Units.Last).Remote_Types := False;
1163 Units.Table (Units.Last).Has_RACW := False;
1164 Units.Table (Units.Last).Init_Scalars := False;
1165 Units.Table (Units.Last).Is_Generic := False;
1166 Units.Table (Units.Last).Icasing := Mixed_Case;
1167 Units.Table (Units.Last).Kcasing := All_Lower_Case;
1168 Units.Table (Units.Last).Dynamic_Elab := False;
1169 Units.Table (Units.Last).Elaborate_Body := False;
1170 Units.Table (Units.Last).Set_Elab_Entity := False;
1171 Units.Table (Units.Last).Version := "00000000";
1172 Units.Table (Units.Last).First_With := Withs.Last + 1;
1173 Units.Table (Units.Last).First_Arg := First_Arg;
1174 Units.Table (Units.Last).Elab_Position := 0;
1175 Units.Table (Units.Last).Interface := ALIs.Table (Id).Interface;
1176 Units.Table (Units.Last).Body_Needed_For_SAL := False;
1178 if Debug_Flag_U then
1179 Write_Str (" ----> reading unit ");
1180 Write_Int (Int (Units.Last));
1182 Write_Unit_Name (Units.Table (Units.Last).Uname);
1183 Write_Str (" from file ");
1184 Write_Name (Units.Table (Units.Last).Sfile);
1188 -- Check for duplicated unit in different files
1191 Info : constant Int := Get_Name_Table_Info
1192 (Units.Table (Units.Last).Uname);
1195 and then Units.Table (Units.Last).Sfile /=
1196 Units.Table (Unit_Id (Info)).Sfile
1198 -- If Err is set then ignore duplicate unit name. This is the
1199 -- case of a call from gnatmake, where the situation can arise
1200 -- from substitution of source files. In such situations, the
1201 -- processing in gnatmake will always result in any required
1202 -- recompilations in any case, and if we consider this to be
1203 -- an error we get strange cases (for example when a generic
1204 -- instantiation is replaced by a normal package) where we
1205 -- read the old ali file, decide to recompile, and then decide
1206 -- that the old and new ali files are incompatible.
1211 -- If Err is not set, then this is a fatal error. This is
1212 -- the case of being called from the binder, where we must
1213 -- definitely diagnose this as an error.
1217 Write_Str ("error: duplicate unit name: ");
1220 Write_Str ("error: unit """);
1221 Write_Unit_Name (Units.Table (Units.Last).Uname);
1222 Write_Str (""" found in file """);
1223 Write_Name_Decoded (Units.Table (Units.Last).Sfile);
1227 Write_Str ("error: unit """);
1228 Write_Unit_Name (Units.Table (Unit_Id (Info)).Uname);
1229 Write_Str (""" found in file """);
1230 Write_Name_Decoded (Units.Table (Unit_Id (Info)).Sfile);
1234 Exit_Program (E_Fatal);
1240 (Units.Table (Units.Last).Uname, Int (Units.Last));
1242 -- Scan out possible version and other parameters
1251 if C in '0' .. '9' or else C in 'a' .. 'f' then
1252 Units.Table (Units.Last).Version (1) := C;
1254 for J in 2 .. 8 loop
1256 Units.Table (Units.Last).Version (J) := C;
1259 -- BN parameter (Body needed)
1265 Check_At_End_Of_Field;
1266 Units.Table (Units.Last).Body_Needed_For_SAL := True;
1272 -- DE parameter (Dynamic elaboration checks)
1278 Check_At_End_Of_Field;
1279 Units.Table (Units.Last).Dynamic_Elab := True;
1280 Dynamic_Elaboration_Checks_Specified := True;
1291 Units.Table (Units.Last).Elaborate_Body := True;
1293 Units.Table (Units.Last).Set_Elab_Entity := True;
1298 Check_At_End_Of_Field;
1300 -- GE parameter (generic)
1306 Check_At_End_Of_Field;
1307 Units.Table (Units.Last).Is_Generic := True;
1312 -- IL/IS/IU parameters
1318 Units.Table (Units.Last).Icasing := All_Lower_Case;
1320 Units.Table (Units.Last).Init_Scalars := True;
1321 Initialize_Scalars_Used := True;
1323 Units.Table (Units.Last).Icasing := All_Upper_Case;
1328 Check_At_End_Of_Field;
1336 Units.Table (Units.Last).Kcasing := Mixed_Case;
1338 Units.Table (Units.Last).Kcasing := All_Upper_Case;
1343 Check_At_End_Of_Field;
1351 Units.Table (Units.Last).No_Elab := True;
1352 Check_At_End_Of_Field;
1358 -- PR/PU/PK parameters
1364 Units.Table (Units.Last).Preelab := True;
1366 Units.Table (Units.Last).Pure := True;
1368 Units.Table (Units.Last).Unit_Kind := 'p';
1373 Check_At_End_Of_Field;
1381 Units.Table (Units.Last).RCI := True;
1383 Units.Table (Units.Last).Remote_Types := True;
1385 Units.Table (Units.Last).Has_RACW := True;
1390 Check_At_End_Of_Field;
1396 Units.Table (Units.Last).Shared_Passive := True;
1398 Units.Table (Units.Last).Unit_Kind := 's';
1403 Check_At_End_Of_Field;
1413 -- Check if static elaboration model used
1415 if not Units.Table (Units.Last).Dynamic_Elab
1416 and then not Units.Table (Units.Last).Internal
1418 Static_Elaboration_Model_Used := True;
1423 -- Scan out With lines for this unit
1427 exit With_Loop when C /= 'W';
1429 if Ignore ('W') then
1435 Withs.Increment_Last;
1436 Withs.Table (Withs.Last).Uname := Get_Name;
1437 Withs.Table (Withs.Last).Elaborate := False;
1438 Withs.Table (Withs.Last).Elaborate_All := False;
1439 Withs.Table (Withs.Last).Elab_All_Desirable := False;
1440 Withs.Table (Withs.Last).Interface := False;
1442 -- Generic case with no object file available
1445 Withs.Table (Withs.Last).Sfile := No_File;
1446 Withs.Table (Withs.Last).Afile := No_File;
1451 Withs.Table (Withs.Last).Sfile := Get_Name (Lower => True);
1452 Withs.Table (Withs.Last).Afile := Get_Name;
1454 -- Scan out possible E, EA, and NE parameters
1456 while not At_Eol loop
1462 if At_End_Of_Field then
1463 Withs.Table (Withs.Last).Elaborate := True;
1465 elsif Nextc = 'A' then
1467 Check_At_End_Of_Field;
1468 Withs.Table (Withs.Last).Elaborate_All := True;
1472 Check_At_End_Of_Field;
1474 -- Store ED indication unless ignore required
1476 if not Ignore_ED then
1477 Withs.Table (Withs.Last).Elab_All_Desirable :=
1491 Units.Table (Units.Last).Last_With := Withs.Last;
1492 Units.Table (Units.Last).Last_Arg := Args.Last;
1494 -- If there are linker options lines present, scan them
1498 Linker_Options_Loop : loop
1500 exit Linker_Options_Loop when C /= 'L';
1502 if Ignore ('L') then
1513 if C < Character'Val (16#20#)
1514 or else C > Character'Val (16#7E#)
1519 C := Character'Val (0);
1526 for J in 1 .. 2 loop
1529 if C in '0' .. '9' then
1532 Character'Pos ('0');
1534 elsif C in 'A' .. 'F' then
1537 Character'Pos ('A') +
1546 Add_Char_To_Name_Buffer (Character'Val (V));
1551 exit when Nextc /= '"';
1555 Add_Char_To_Name_Buffer (C);
1559 Add_Char_To_Name_Buffer (nul);
1564 end loop Linker_Options_Loop;
1566 -- Store the linker options entry if one was found
1568 if Name_Len /= 0 then
1569 Linker_Options.Increment_Last;
1571 Linker_Options.Table (Linker_Options.Last).Name :=
1574 Linker_Options.Table (Linker_Options.Last).Unit :=
1577 Linker_Options.Table (Linker_Options.Last).Internal_File :=
1578 Is_Internal_File_Name (F);
1580 Linker_Options.Table (Linker_Options.Last).Original_Pos :=
1581 Linker_Options.Last;
1585 -- End loop through units for one ALI file
1587 ALIs.Table (Id).Last_Unit := Units.Last;
1588 ALIs.Table (Id).Sfile := Units.Table (ALIs.Table (Id).First_Unit).Sfile;
1590 -- Set types of the units (there can be at most 2 of them)
1592 if ALIs.Table (Id).First_Unit /= ALIs.Table (Id).Last_Unit then
1593 Units.Table (ALIs.Table (Id).First_Unit).Utype := Is_Body;
1594 Units.Table (ALIs.Table (Id).Last_Unit).Utype := Is_Spec;
1597 -- Deal with body only and spec only cases, note that the reason we
1598 -- do our own checking of the name (rather than using Is_Body_Name)
1599 -- is that Uname drags in far too much compiler junk!
1601 Get_Name_String (Units.Table (Units.Last).Uname);
1603 if Name_Buffer (Name_Len) = 'b' then
1604 Units.Table (Units.Last).Utype := Is_Body_Only;
1606 Units.Table (Units.Last).Utype := Is_Spec_Only;
1610 -- Scan out external version references and put in hash table
1614 exit E_Loop when C /= 'E';
1616 if Ignore ('E') then
1632 exit when At_End_Of_Field;
1633 Add_Char_To_Name_Buffer (C);
1636 Version_Ref.Set (new String'(Name_Buffer (1 .. Name_Len)), True);
1643 -- Scan out source dependency lines for this ALI file
1645 ALIs.Table (Id).First_Sdep := Sdep.Last + 1;
1649 exit D_Loop when C /= 'D';
1651 if Ignore ('D') then
1657 Sdep.Increment_Last;
1658 Sdep.Table (Sdep.Last).Sfile := Get_Name (Lower => True);
1659 Sdep.Table (Sdep.Last).Stamp := Get_Stamp;
1660 Sdep.Table (Sdep.Last).Dummy_Entry :=
1661 (Sdep.Table (Sdep.Last).Stamp = Dummy_Time_Stamp);
1663 -- Acquire checksum value
1676 exit when At_Eol or else Ctr = 8;
1678 if Nextc in '0' .. '9' then
1680 Character'Pos (Nextc) - Character'Pos ('0');
1682 elsif Nextc in 'a' .. 'f' then
1684 Character'Pos (Nextc) - Character'Pos ('a') + 10;
1694 if Ctr = 8 and then At_End_Of_Field then
1695 Sdep.Table (Sdep.Last).Checksum := Chk;
1701 -- Acquire subunit and reference file name entries
1703 Sdep.Table (Sdep.Last).Subunit_Name := No_Name;
1704 Sdep.Table (Sdep.Last).Rfile :=
1705 Sdep.Table (Sdep.Last).Sfile;
1706 Sdep.Table (Sdep.Last).Start_Line := 1;
1711 -- Here for subunit name
1713 if Nextc not in '0' .. '9' then
1716 while not At_End_Of_Field loop
1717 Name_Len := Name_Len + 1;
1718 Name_Buffer (Name_Len) := Getc;
1721 Sdep.Table (Sdep.Last).Subunit_Name := Name_Enter;
1725 -- Here for reference file name entry
1727 if Nextc in '0' .. '9' then
1728 Sdep.Table (Sdep.Last).Start_Line := Get_Nat;
1733 while not At_End_Of_Field loop
1734 Name_Len := Name_Len + 1;
1735 Name_Buffer (Name_Len) := Getc;
1738 Sdep.Table (Sdep.Last).Rfile := Name_Enter;
1748 ALIs.Table (Id).Last_Sdep := Sdep.Last;
1750 -- We must at this stage be at an Xref line or the end of file
1762 -- If we are ignoring Xref sections we are done (we ignore all
1763 -- remaining lines since only xref related lines follow X).
1765 if Ignore ('X') and then not Debug_Flag_X then
1769 -- Loop through Xref sections
1773 exit X_Loop when C /= 'X';
1775 -- Make new entry in section table
1777 Xref_Section.Increment_Last;
1779 Read_Refs_For_One_File : declare
1780 XS : Xref_Section_Record renames
1781 Xref_Section.Table (Xref_Section.Last);
1783 Current_File_Num : Sdep_Id;
1784 -- Keeps track of the current file number (changed by nn|)
1787 XS.File_Num := Sdep_Id (Get_Nat + Nat (First_Sdep_Entry) - 1);
1788 XS.File_Name := Get_Name;
1789 XS.First_Entity := Xref_Entity.Last + 1;
1791 Current_File_Num := XS.File_Num;
1798 -- Loop through Xref entities
1800 while C /= 'X' and then C /= EOF loop
1801 Xref_Entity.Increment_Last;
1803 Read_Refs_For_One_Entity : declare
1804 XE : Xref_Entity_Record renames
1805 Xref_Entity.Table (Xref_Entity.Last);
1808 procedure Read_Instantiation_Reference;
1809 -- Acquire instantiation reference. Caller has checked
1810 -- that current character is '[' and on return the cursor
1811 -- is skipped past the corresponding closing ']'.
1813 ----------------------------------
1814 -- Read_Instantiation_Reference --
1815 ----------------------------------
1817 procedure Read_Instantiation_Reference is
1818 Local_File_Num : Sdep_Id := Current_File_Num;
1821 Xref.Increment_Last;
1824 XR : Xref_Record renames Xref.Table (Xref.Last);
1827 P := P + 1; -- skip [
1832 Sdep_Id (N + Nat (First_Sdep_Entry) - 1);
1833 Local_File_Num := XR.File_Num;
1838 XR.File_Num := Local_File_Num;
1845 -- Recursive call for next reference
1848 pragma Warnings (Off); -- kill recursion warning
1849 Read_Instantiation_Reference;
1850 pragma Warnings (On);
1853 -- Skip closing bracket after recursive call
1857 end Read_Instantiation_Reference;
1859 -- Start of processing for Read_Refs_For_One_Entity
1865 XE.Lib := (Getc = '*');
1866 XE.Entity := Get_Name;
1868 Current_File_Num := XS.File_Num;
1870 -- Renaming reference is present
1874 XE.Rref_Line := Get_Nat;
1880 XE.Rref_Col := Get_Nat;
1882 -- No renaming reference present
1891 -- See if type reference present
1894 when '<' => XE.Tref := Tref_Derived;
1895 when '(' => XE.Tref := Tref_Access;
1896 when '{' => XE.Tref := Tref_Type;
1897 when others => XE.Tref := Tref_None;
1900 -- Case of typeref field present
1902 if XE.Tref /= Tref_None then
1903 P := P + 1; -- skip opening bracket
1905 if Nextc in 'a' .. 'z' then
1906 XE.Tref_File_Num := No_Sdep_Id;
1908 XE.Tref_Type := ' ';
1910 XE.Tref_Standard_Entity :=
1911 Get_Name (Ignore_Spaces => True);
1918 Sdep_Id (N + Nat (First_Sdep_Entry) - 1);
1923 XE.Tref_File_Num := Current_File_Num;
1927 XE.Tref_Type := Getc;
1928 XE.Tref_Col := Get_Nat;
1929 XE.Tref_Standard_Entity := No_Name;
1932 -- ??? Temporary workaround for nested generics case:
1933 -- 4i4 Directories{1|4I9[4|6[3|3]]}
1937 Nested_Brackets : Natural := 0;
1943 Nested_Brackets := Nested_Brackets + 1;
1945 Nested_Brackets := Nested_Brackets - 1;
1947 if Nested_Brackets = 0 then
1956 P := P + 1; -- skip closing bracket
1959 -- No typeref entry present
1962 XE.Tref_File_Num := No_Sdep_Id;
1964 XE.Tref_Type := ' ';
1966 XE.Tref_Standard_Entity := No_Name;
1969 XE.First_Xref := Xref.Last + 1;
1971 -- Loop through cross-references for this entity
1978 exit when Nextc /= '.';
1982 Xref.Increment_Last;
1985 XR : Xref_Record renames Xref.Table (Xref.Last);
1992 Sdep_Id (N + Nat (First_Sdep_Entry) - 1);
1993 Current_File_Num := XR.File_Num;
1997 XR.File_Num := Current_File_Num;
2003 -- Imported entities reference as in:
2004 -- 494b<c,__gnat_copy_attribs>25
2005 -- ??? Simply skipped for now
2008 while Getc /= '>' loop
2016 Read_Instantiation_Reference;
2021 -- Record last cross-reference
2023 XE.Last_Xref := Xref.Last;
2025 end Read_Refs_For_One_Entity;
2028 -- Record last entity
2030 XS.Last_Entity := Xref_Entity.Last;
2032 end Read_Refs_For_One_File;
2037 -- Here after dealing with xref sections
2039 if C /= EOF and then C /= 'X' then
2046 when Bad_ALI_Format =>
2055 function SEq (F1, F2 : String_Ptr) return Boolean is
2057 return F1.all = F2.all;
2064 function SHash (S : String_Ptr) return Vindex is
2069 for J in S.all'Range loop
2070 H := H * 2 + Character'Pos (S (J));
2073 return Vindex (Vindex'First + Vindex (H mod Vindex'Range_Length));