1 ------------------------------------------------------------------------------
3 -- GNAT COMPILER COMPONENTS --
9 -- Copyright (C) 1992-2007, 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, 51 Franklin Street, Fifth Floor, --
20 -- Boston, MA 02110-1301, 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 Unchecked_Conversion;
29 with System.Case_Util; use System.Case_Util;
34 with Gnatvsn; use Gnatvsn;
37 with Output; use Output;
38 with Sdefault; use Sdefault;
40 with Targparm; use Targparm;
44 Running_Program : Program_Type := Unspecified;
45 -- comment required here ???
47 Program_Set : Boolean := False;
48 -- comment required here ???
50 Std_Prefix : String_Ptr;
51 -- Standard prefix, computed dynamically the first time Relocate_Path
52 -- is called, and cached for subsequent calls.
54 Empty : aliased String := "";
55 No_Dir : constant String_Ptr := Empty'Access;
56 -- Used in Locate_File as a fake directory when Name is already an
59 -------------------------------------
60 -- Use of Name_Find and Name_Enter --
61 -------------------------------------
63 -- This package creates a number of source, ALI and object file names
64 -- that are used to locate the actual file and for the purpose of message
65 -- construction. These names need not be accessible by Name_Find, and can
66 -- be therefore created by using routine Name_Enter. The files in question
67 -- are file names with a prefix directory (ie the files not in the current
68 -- directory). File names without a prefix directory are entered with
69 -- Name_Find because special values might be attached to the various Info
70 -- fields of the corresponding name table entry.
72 -----------------------
73 -- Local Subprograms --
74 -----------------------
76 function Append_Suffix_To_File_Name
77 (Name : File_Name_Type;
78 Suffix : String) return File_Name_Type;
79 -- Appends Suffix to Name and returns the new name
81 function OS_Time_To_GNAT_Time (T : OS_Time) return Time_Stamp_Type;
82 -- Convert OS format time to GNAT format time stamp
84 function Executable_Prefix return String_Ptr;
85 -- Returns the name of the root directory where the executable is stored.
86 -- The executable must be located in a directory called "bin", or under
87 -- root/lib/gcc-lib/..., or under root/libexec/gcc/... For example, if
88 -- executable is stored in directory "/foo/bar/bin", this routine returns
89 -- "/foo/bar/". Return "" if location is not recognized as described above.
91 function Update_Path (Path : String_Ptr) return String_Ptr;
92 -- Update the specified path to replace the prefix with the location
93 -- where GNAT is installed. See the file prefix.c in GCC for details.
99 Name : String) return File_Name_Type;
100 -- See if the file N whose name is Name exists in directory Dir. Dir is an
101 -- index into the Lib_Search_Directories table if T = Library. Otherwise
102 -- if T = Source, Dir is an index into the Src_Search_Directories table.
103 -- Returns the File_Name_Type of the full file name if file found, or
104 -- No_File if not found.
106 function C_String_Length (S : Address) return Integer;
107 -- Returns length of a C string (zero for a null address)
109 function To_Path_String_Access
110 (Path_Addr : Address;
111 Path_Len : Integer) return String_Access;
112 -- Converts a C String to an Ada String. Are we doing this to avoid withing
113 -- Interfaces.C.Strings ???
115 ------------------------------
116 -- Other Local Declarations --
117 ------------------------------
119 EOL : constant Character := ASCII.LF;
120 -- End of line character
122 Number_File_Names : Int := 0;
123 -- Number of file names founde on command line and placed in File_Names
125 Look_In_Primary_Directory_For_Current_Main : Boolean := False;
126 -- When this variable is True, Find_File only looks in Primary_Directory
127 -- for the Current_Main file. This variable is always set to True for the
128 -- compiler. It is also True for gnatmake, when the soucr name given on
129 -- the command line has directory information.
131 Current_Full_Source_Name : File_Name_Type := No_File;
132 Current_Full_Source_Stamp : Time_Stamp_Type := Empty_Time_Stamp;
133 Current_Full_Lib_Name : File_Name_Type := No_File;
134 Current_Full_Lib_Stamp : Time_Stamp_Type := Empty_Time_Stamp;
135 Current_Full_Obj_Name : File_Name_Type := No_File;
136 Current_Full_Obj_Stamp : Time_Stamp_Type := Empty_Time_Stamp;
137 -- Respectively full name (with directory info) and time stamp of the
138 -- latest source, library and object files opened by Read_Source_File and
139 -- Read_Library_Info.
145 Primary_Directory : constant := 0;
146 -- This is index in the tables created below for the first directory to
147 -- search in for source or library information files. This is the directory
148 -- containing the latest main input file (a source file for the compiler or
149 -- a library file for the binder).
151 package Src_Search_Directories is new Table.Table (
152 Table_Component_Type => String_Ptr,
153 Table_Index_Type => Integer,
154 Table_Low_Bound => Primary_Directory,
156 Table_Increment => 100,
157 Table_Name => "Osint.Src_Search_Directories");
158 -- Table of names of directories in which to search for source (Compiler)
159 -- files. This table is filled in the order in which the directories are
160 -- to be searched, and then used in that order.
162 package Lib_Search_Directories is new Table.Table (
163 Table_Component_Type => String_Ptr,
164 Table_Index_Type => Integer,
165 Table_Low_Bound => Primary_Directory,
167 Table_Increment => 100,
168 Table_Name => "Osint.Lib_Search_Directories");
169 -- Table of names of directories in which to search for library (Binder)
170 -- files. This table is filled in the order in which the directories are
171 -- to be searched and then used in that order. The reason for having two
172 -- distinct tables is that we need them both in gnatmake.
174 ---------------------
175 -- File Hash Table --
176 ---------------------
178 -- The file hash table is provided to free the programmer from any
179 -- efficiency concern when retrieving full file names or time stamps of
180 -- source files. If the programmer calls Source_File_Data (Cache => True)
181 -- he is guaranteed that the price to retrieve the full name (ie with
182 -- directory info) or time stamp of the file will be payed only once, the
183 -- first time the full name is actually searched (or the first time the
184 -- time stamp is actually retrieved). This is achieved by employing a hash
185 -- table that stores as a key the File_Name_Type of the file and associates
186 -- to that File_Name_Type the full file name and time stamp of the file.
188 File_Cache_Enabled : Boolean := False;
189 -- Set to true if you want the enable the file data caching mechanism
191 type File_Hash_Num is range 0 .. 1020;
193 function File_Hash (F : File_Name_Type) return File_Hash_Num;
194 -- Compute hash index for use by Simple_HTable
196 package File_Name_Hash_Table is new GNAT.HTable.Simple_HTable (
197 Header_Num => File_Hash_Num,
198 Element => File_Name_Type,
199 No_Element => No_File,
200 Key => File_Name_Type,
204 package File_Stamp_Hash_Table is new GNAT.HTable.Simple_HTable (
205 Header_Num => File_Hash_Num,
206 Element => Time_Stamp_Type,
207 No_Element => Empty_Time_Stamp,
208 Key => File_Name_Type,
212 function Smart_Find_File
214 T : File_Type) return File_Name_Type;
215 -- Exactly like Find_File except that if File_Cache_Enabled is True this
216 -- routine looks first in the hash table to see if the full name of the
217 -- file is already available.
219 function Smart_File_Stamp
221 T : File_Type) return Time_Stamp_Type;
222 -- Takes the same parameter as the routine above (N is a file name without
223 -- any prefix directory information) and behaves like File_Stamp except
224 -- that if File_Cache_Enabled is True this routine looks first in the hash
225 -- table to see if the file stamp of the file is already available.
227 -----------------------------
228 -- Add_Default_Search_Dirs --
229 -----------------------------
231 procedure Add_Default_Search_Dirs is
232 Search_Dir : String_Access;
233 Search_Path : String_Access;
234 Path_File_Name : String_Access;
236 procedure Add_Search_Dir
237 (Search_Dir : String;
238 Additional_Source_Dir : Boolean);
239 procedure Add_Search_Dir
240 (Search_Dir : String_Access;
241 Additional_Source_Dir : Boolean);
242 -- Add a source search dir or a library search dir, depending on the
243 -- value of Additional_Source_Dir.
245 procedure Get_Dirs_From_File (Additional_Source_Dir : Boolean);
246 -- Open a path file and read the directory to search, one per line
248 function Get_Libraries_From_Registry return String_Ptr;
249 -- On Windows systems, get the list of installed standard libraries
250 -- from the registry key:
252 -- HKEY_LOCAL_MACHINE\SOFTWARE\Ada Core Technologies\
253 -- GNAT\Standard Libraries
254 -- Return an empty string on other systems
260 procedure Add_Search_Dir
261 (Search_Dir : String;
262 Additional_Source_Dir : Boolean)
265 if Additional_Source_Dir then
266 Add_Src_Search_Dir (Search_Dir);
268 Add_Lib_Search_Dir (Search_Dir);
272 procedure Add_Search_Dir
273 (Search_Dir : String_Access;
274 Additional_Source_Dir : Boolean)
277 if Additional_Source_Dir then
278 Add_Src_Search_Dir (Search_Dir.all);
280 Add_Lib_Search_Dir (Search_Dir.all);
284 ------------------------
285 -- Get_Dirs_From_File --
286 ------------------------
288 procedure Get_Dirs_From_File (Additional_Source_Dir : Boolean) is
289 File_FD : File_Descriptor;
290 Buffer : constant String := Path_File_Name.all & ASCII.NUL;
292 Actual_Len : Natural;
299 -- For the call to Close
302 File_FD := Open_Read (Buffer'Address, Binary);
304 -- If we cannot open the file, we ignore it, we don't fail
306 if File_FD = Invalid_FD then
310 Len := Integer (File_Length (File_FD));
312 S := new String (1 .. Len);
314 -- Read the file. Note that the loop is not necessary since the
315 -- whole file is read at once except on VMS.
319 while Curr <= Len and then Actual_Len /= 0 loop
320 Actual_Len := Read (File_FD, S (Curr)'Address, Len);
321 Curr := Curr + Actual_Len;
324 -- We are done with the file, so we close it (ignore any error on
325 -- the close, since we have successfully read the file).
327 Close (File_FD, Status);
329 -- Now, we read line by line
333 while Curr < Len loop
336 if Ch = ASCII.CR or else Ch = ASCII.LF
337 or else Ch = ASCII.FF or else Ch = ASCII.VT
339 if First <= Curr then
340 Add_Search_Dir (S (First .. Curr), Additional_Source_Dir);
349 -- Last line is a special case, if the file does not end with
350 -- an end of line mark.
352 if First <= S'Last then
353 Add_Search_Dir (S (First .. S'Last), Additional_Source_Dir);
355 end Get_Dirs_From_File;
357 ---------------------------------
358 -- Get_Libraries_From_Registry --
359 ---------------------------------
361 function Get_Libraries_From_Registry return String_Ptr is
362 function C_Get_Libraries_From_Registry return Address;
363 pragma Import (C, C_Get_Libraries_From_Registry,
364 "__gnat_get_libraries_from_registry");
366 function Strlen (Str : Address) return Integer;
367 pragma Import (C, Strlen, "strlen");
369 procedure Strncpy (X : Address; Y : Address; Length : Integer);
370 pragma Import (C, Strncpy, "strncpy");
372 Result_Ptr : Address;
373 Result_Length : Integer;
374 Out_String : String_Ptr;
377 Result_Ptr := C_Get_Libraries_From_Registry;
378 Result_Length := Strlen (Result_Ptr);
380 Out_String := new String (1 .. Result_Length);
381 Strncpy (Out_String.all'Address, Result_Ptr, Result_Length);
383 end Get_Libraries_From_Registry;
385 -- Start of processing for Add_Default_Search_Dirs
388 -- After the locations specified on the command line, the next places
389 -- to look for files are the directories specified by the appropriate
390 -- environment variable. Get this value, extract the directory names
391 -- and store in the tables.
393 -- Check for eventual project path file env vars
395 Path_File_Name := Getenv (Project_Include_Path_File);
397 if Path_File_Name'Length > 0 then
398 Get_Dirs_From_File (Additional_Source_Dir => True);
401 Path_File_Name := Getenv (Project_Objects_Path_File);
403 if Path_File_Name'Length > 0 then
404 Get_Dirs_From_File (Additional_Source_Dir => False);
407 -- On VMS, don't expand the logical name (e.g. environment variable),
408 -- just put it into Unix (e.g. canonical) format. System services
409 -- will handle the expansion as part of the file processing.
411 for Additional_Source_Dir in False .. True loop
412 if Additional_Source_Dir then
413 Search_Path := Getenv (Ada_Include_Path);
415 if Search_Path'Length > 0 then
416 if Hostparm.OpenVMS then
417 Search_Path := To_Canonical_Path_Spec ("ADA_INCLUDE_PATH:");
419 Search_Path := To_Canonical_Path_Spec (Search_Path.all);
424 Search_Path := Getenv (Ada_Objects_Path);
426 if Search_Path'Length > 0 then
427 if Hostparm.OpenVMS then
428 Search_Path := To_Canonical_Path_Spec ("ADA_OBJECTS_PATH:");
430 Search_Path := To_Canonical_Path_Spec (Search_Path.all);
435 Get_Next_Dir_In_Path_Init (Search_Path);
437 Search_Dir := Get_Next_Dir_In_Path (Search_Path);
438 exit when Search_Dir = null;
439 Add_Search_Dir (Search_Dir, Additional_Source_Dir);
443 -- For the compiler, if --RTS= was specified, add the runtime
446 if RTS_Src_Path_Name /= null
447 and then RTS_Lib_Path_Name /= null
449 Add_Search_Dirs (RTS_Src_Path_Name, Include);
450 Add_Search_Dirs (RTS_Lib_Path_Name, Objects);
453 if not Opt.No_Stdinc then
455 -- For WIN32 systems, look for any system libraries defined in
456 -- the registry. These are added to both source and object
459 Search_Path := String_Access (Get_Libraries_From_Registry);
461 Get_Next_Dir_In_Path_Init (Search_Path);
463 Search_Dir := Get_Next_Dir_In_Path (Search_Path);
464 exit when Search_Dir = null;
465 Add_Search_Dir (Search_Dir, False);
466 Add_Search_Dir (Search_Dir, True);
469 -- The last place to look are the defaults
472 Read_Default_Search_Dirs
473 (String_Access (Update_Path (Search_Dir_Prefix)),
475 String_Access (Update_Path (Include_Dir_Default_Name)));
477 Get_Next_Dir_In_Path_Init (Search_Path);
479 Search_Dir := Get_Next_Dir_In_Path (Search_Path);
480 exit when Search_Dir = null;
481 Add_Search_Dir (Search_Dir, True);
485 if not Opt.No_Stdlib and not Opt.RTS_Switch then
487 Read_Default_Search_Dirs
488 (String_Access (Update_Path (Search_Dir_Prefix)),
490 String_Access (Update_Path (Object_Dir_Default_Name)));
492 Get_Next_Dir_In_Path_Init (Search_Path);
494 Search_Dir := Get_Next_Dir_In_Path (Search_Path);
495 exit when Search_Dir = null;
496 Add_Search_Dir (Search_Dir, False);
500 end Add_Default_Search_Dirs;
506 procedure Add_File (File_Name : String; Index : Int := No_Index) is
508 Number_File_Names := Number_File_Names + 1;
510 -- As Add_File may be called for mains specified inside a project file,
511 -- File_Names may be too short and needs to be extended.
513 if Number_File_Names > File_Names'Last then
514 File_Names := new File_Name_Array'(File_Names.all & File_Names.all);
516 new File_Index_Array'(File_Indexes.all & File_Indexes.all);
519 File_Names (Number_File_Names) := new String'(File_Name);
520 File_Indexes (Number_File_Names) := Index;
523 ------------------------
524 -- Add_Lib_Search_Dir --
525 ------------------------
527 procedure Add_Lib_Search_Dir (Dir : String) is
529 if Dir'Length = 0 then
530 Fail ("missing library directory name");
533 Lib_Search_Directories.Increment_Last;
534 Lib_Search_Directories.Table (Lib_Search_Directories.Last) :=
535 Normalize_Directory_Name (Dir);
536 end Add_Lib_Search_Dir;
538 ---------------------
539 -- Add_Search_Dirs --
540 ---------------------
542 procedure Add_Search_Dirs
543 (Search_Path : String_Ptr;
544 Path_Type : Search_File_Type)
546 Current_Search_Path : String_Access;
549 Get_Next_Dir_In_Path_Init (String_Access (Search_Path));
551 Current_Search_Path :=
552 Get_Next_Dir_In_Path (String_Access (Search_Path));
553 exit when Current_Search_Path = null;
555 if Path_Type = Include then
556 Add_Src_Search_Dir (Current_Search_Path.all);
558 Add_Lib_Search_Dir (Current_Search_Path.all);
563 ------------------------
564 -- Add_Src_Search_Dir --
565 ------------------------
567 procedure Add_Src_Search_Dir (Dir : String) is
569 if Dir'Length = 0 then
570 Fail ("missing source directory name");
573 Src_Search_Directories.Increment_Last;
574 Src_Search_Directories.Table (Src_Search_Directories.Last) :=
575 Normalize_Directory_Name (Dir);
576 end Add_Src_Search_Dir;
578 --------------------------------
579 -- Append_Suffix_To_File_Name --
580 --------------------------------
582 function Append_Suffix_To_File_Name
583 (Name : File_Name_Type;
584 Suffix : String) return File_Name_Type
587 Get_Name_String (Name);
588 Name_Buffer (Name_Len + 1 .. Name_Len + Suffix'Length) := Suffix;
589 Name_Len := Name_Len + Suffix'Length;
591 end Append_Suffix_To_File_Name;
593 ---------------------
594 -- C_String_Length --
595 ---------------------
597 function C_String_Length (S : Address) return Integer is
598 function Strlen (S : Address) return Integer;
599 pragma Import (C, Strlen, "strlen");
601 if S = Null_Address then
608 ------------------------------
609 -- Canonical_Case_File_Name --
610 ------------------------------
612 -- For now, we only deal with the case of a-z. Eventually we should
613 -- worry about other Latin-1 letters on systems that support this ???
615 procedure Canonical_Case_File_Name (S : in out String) is
617 if not File_Names_Case_Sensitive then
618 for J in S'Range loop
619 if S (J) in 'A' .. 'Z' then
620 S (J) := Character'Val (
621 Character'Pos (S (J)) +
622 Character'Pos ('a') -
623 Character'Pos ('A'));
627 end Canonical_Case_File_Name;
629 ---------------------------
630 -- Create_File_And_Check --
631 ---------------------------
633 procedure Create_File_And_Check
634 (Fdesc : out File_Descriptor;
638 Output_File_Name := Name_Enter;
639 Fdesc := Create_File (Name_Buffer'Address, Fmode);
641 if Fdesc = Invalid_FD then
642 Fail ("Cannot create: ", Name_Buffer (1 .. Name_Len));
644 end Create_File_And_Check;
646 ------------------------
647 -- Current_File_Index --
648 ------------------------
650 function Current_File_Index return Int is
652 return File_Indexes (Current_File_Name_Index);
653 end Current_File_Index;
655 --------------------------------
656 -- Current_Library_File_Stamp --
657 --------------------------------
659 function Current_Library_File_Stamp return Time_Stamp_Type is
661 return Current_Full_Lib_Stamp;
662 end Current_Library_File_Stamp;
664 -------------------------------
665 -- Current_Object_File_Stamp --
666 -------------------------------
668 function Current_Object_File_Stamp return Time_Stamp_Type is
670 return Current_Full_Obj_Stamp;
671 end Current_Object_File_Stamp;
673 -------------------------------
674 -- Current_Source_File_Stamp --
675 -------------------------------
677 function Current_Source_File_Stamp return Time_Stamp_Type is
679 return Current_Full_Source_Stamp;
680 end Current_Source_File_Stamp;
682 ----------------------------
683 -- Dir_In_Obj_Search_Path --
684 ----------------------------
686 function Dir_In_Obj_Search_Path (Position : Natural) return String_Ptr is
688 if Opt.Look_In_Primary_Dir then
690 Lib_Search_Directories.Table (Primary_Directory + Position - 1);
692 return Lib_Search_Directories.Table (Primary_Directory + Position);
694 end Dir_In_Obj_Search_Path;
696 ----------------------------
697 -- Dir_In_Src_Search_Path --
698 ----------------------------
700 function Dir_In_Src_Search_Path (Position : Natural) return String_Ptr is
702 if Opt.Look_In_Primary_Dir then
704 Src_Search_Directories.Table (Primary_Directory + Position - 1);
706 return Src_Search_Directories.Table (Primary_Directory + Position);
708 end Dir_In_Src_Search_Path;
710 ---------------------
711 -- Executable_Name --
712 ---------------------
714 function Executable_Name (Name : File_Name_Type) return File_Name_Type is
715 Exec_Suffix : String_Access;
718 if Name = No_File then
722 if Executable_Extension_On_Target = No_Name then
723 Exec_Suffix := Get_Target_Executable_Suffix;
725 Get_Name_String (Executable_Extension_On_Target);
726 Exec_Suffix := new String'(Name_Buffer (1 .. Name_Len));
729 Get_Name_String (Name);
731 if Exec_Suffix'Length /= 0 then
733 Buffer : String := Name_Buffer (1 .. Name_Len);
736 -- Get the file name in canonical case to accept as is names
737 -- ending with ".EXE" on VMS and Windows.
739 Canonical_Case_File_Name (Buffer);
741 -- If Executable does not end with the executable suffix, add it
743 if Buffer'Length <= Exec_Suffix'Length
745 Buffer (Buffer'Last - Exec_Suffix'Length + 1 .. Buffer'Last)
748 Name_Buffer (Name_Len + 1 .. Name_Len + Exec_Suffix'Length) :=
750 Name_Len := Name_Len + Exec_Suffix'Length;
761 function Executable_Name (Name : String) return String is
762 Exec_Suffix : String_Access;
763 Canonical_Name : String := Name;
766 if Executable_Extension_On_Target = No_Name then
767 Exec_Suffix := Get_Target_Executable_Suffix;
769 Get_Name_String (Executable_Extension_On_Target);
770 Exec_Suffix := new String'(Name_Buffer (1 .. Name_Len));
774 Suffix : constant String := Exec_Suffix.all;
778 Canonical_Case_File_Name (Canonical_Name);
780 if Suffix'Length /= 0
782 (Canonical_Name'Length <= Suffix'Length
783 or else Canonical_Name (Canonical_Name'Last - Suffix'Length + 1
784 .. Canonical_Name'Last) /= Suffix)
787 Result : String (1 .. Name'Length + Suffix'Length);
789 Result (1 .. Name'Length) := Name;
790 Result (Name'Length + 1 .. Result'Last) := Suffix;
799 -----------------------
800 -- Executable_Prefix --
801 -----------------------
803 function Executable_Prefix return String_Ptr is
805 function Get_Install_Dir (Exec : String) return String_Ptr;
806 -- S is the executable name preceeded by the absolute or relative
807 -- path, e.g. "c:\usr\bin\gcc.exe" or "..\bin\gcc".
809 ---------------------
810 -- Get_Install_Dir --
811 ---------------------
813 function Get_Install_Dir (Exec : String) return String_Ptr is
814 Full_Path : constant String := Normalize_Pathname (Exec);
815 -- Use the full path, so that we find "lib" or "bin", even when
816 -- the tool has been invoked with a relative path, as in
817 -- "./gnatls -v" invoked in the GNAT bin directory.
820 for J in reverse Full_Path'Range loop
821 if Is_Directory_Separator (Full_Path (J)) then
822 if J < Full_Path'Last - 5 then
823 if (To_Lower (Full_Path (J + 1)) = 'l'
824 and then To_Lower (Full_Path (J + 2)) = 'i'
825 and then To_Lower (Full_Path (J + 3)) = 'b')
827 (To_Lower (Full_Path (J + 1)) = 'b'
828 and then To_Lower (Full_Path (J + 2)) = 'i'
829 and then To_Lower (Full_Path (J + 3)) = 'n')
831 return new String'(Full_Path (Full_Path'First .. J));
837 return new String'("");
840 -- Start of processing for Executable_Prefix
843 if Exec_Name = null then
844 Exec_Name := new String (1 .. Len_Arg (0));
845 Osint.Fill_Arg (Exec_Name (1)'Address, 0);
848 -- First determine if a path prefix was placed in front of the
851 for J in reverse Exec_Name'Range loop
852 if Is_Directory_Separator (Exec_Name (J)) then
853 return Get_Install_Dir (Exec_Name.all);
857 -- If we come here, the user has typed the executable name with no
860 return Get_Install_Dir (Locate_Exec_On_Path (Exec_Name.all).all);
861 end Executable_Prefix;
867 procedure Exit_Program (Exit_Code : Exit_Code_Type) is
869 -- The program will exit with the following status:
871 -- 0 if the object file has been generated (with or without warnings)
872 -- 1 if recompilation was not needed (smart recompilation)
873 -- 2 if gnat1 has been killed by a signal (detected by GCC)
874 -- 4 for a fatal error
875 -- 5 if there were errors
876 -- 6 if no code has been generated (spec)
878 -- Note that exit code 3 is not used and must not be used as this is
879 -- the code returned by a program aborted via C abort() routine on
880 -- Windows. GCC checks for that case and thinks that the child process
881 -- has been aborted. This code (exit code 3) used to be the code used
882 -- for E_No_Code, but E_No_Code was changed to 6 for this reason.
885 when E_Success => OS_Exit (0);
886 when E_Warnings => OS_Exit (0);
887 when E_No_Compile => OS_Exit (1);
888 when E_Fatal => OS_Exit (4);
889 when E_Errors => OS_Exit (5);
890 when E_No_Code => OS_Exit (6);
891 when E_Abort => OS_Abort;
899 procedure Fail (S1 : String; S2 : String := ""; S3 : String := "") is
901 -- We use Output in case there is a special output set up.
902 -- In this case Set_Standard_Error will have no immediate effect.
905 Osint.Write_Program_Name;
912 Exit_Program (E_Fatal);
919 function File_Hash (F : File_Name_Type) return File_Hash_Num is
921 return File_Hash_Num (Int (F) rem File_Hash_Num'Range_Length);
928 function File_Stamp (Name : File_Name_Type) return Time_Stamp_Type is
930 if Name = No_File then
931 return Empty_Time_Stamp;
934 Get_Name_String (Name);
936 if not Is_Regular_File (Name_Buffer (1 .. Name_Len)) then
937 return Empty_Time_Stamp;
939 Name_Buffer (Name_Len + 1) := ASCII.NUL;
940 return OS_Time_To_GNAT_Time (File_Time_Stamp (Name_Buffer));
944 function File_Stamp (Name : Path_Name_Type) return Time_Stamp_Type is
946 return File_Stamp (File_Name_Type (Name));
955 T : File_Type) return File_Name_Type
961 File_Name : String renames Name_Buffer (1 .. Name_Len);
962 File : File_Name_Type := No_File;
966 -- If we are looking for a config file, look only in the current
967 -- directory, i.e. return input argument unchanged. Also look
968 -- only in the current directory if we are looking for a .dg
969 -- file (happens in -gnatD mode).
972 or else (Debug_Generated_Code
973 and then Name_Len > 3
975 (Name_Buffer (Name_Len - 2 .. Name_Len) = ".dg"
977 (Hostparm.OpenVMS and then
978 Name_Buffer (Name_Len - 2 .. Name_Len) = "_dg")))
982 -- If we are trying to find the current main file just look in the
983 -- directory where the user said it was.
985 elsif Look_In_Primary_Directory_For_Current_Main
986 and then Current_Main = N
988 return Locate_File (N, T, Primary_Directory, File_Name);
990 -- Otherwise do standard search for source file
993 -- Check the mapping of this file name
995 File := Mapped_Path_Name (N);
997 -- If the file name is mapped to a path name, return the
998 -- corresponding path name
1000 if File /= No_File then
1002 -- For locally removed file, Error_Name is returned; then
1003 -- return No_File, indicating the file is not a source.
1005 if File = Error_File_Name then
1013 -- First place to look is in the primary directory (i.e. the same
1014 -- directory as the source) unless this has been disabled with -I-
1016 if Opt.Look_In_Primary_Dir then
1017 File := Locate_File (N, T, Primary_Directory, File_Name);
1019 if File /= No_File then
1024 -- Finally look in directories specified with switches -I/-aI/-aO
1027 Last_Dir := Lib_Search_Directories.Last;
1029 Last_Dir := Src_Search_Directories.Last;
1032 for D in Primary_Directory + 1 .. Last_Dir loop
1033 File := Locate_File (N, T, D, File_Name);
1035 if File /= No_File then
1045 -----------------------
1046 -- Find_Program_Name --
1047 -----------------------
1049 procedure Find_Program_Name is
1050 Command_Name : String (1 .. Len_Arg (0));
1051 Cindex1 : Integer := Command_Name'First;
1052 Cindex2 : Integer := Command_Name'Last;
1055 Fill_Arg (Command_Name'Address, 0);
1057 if Command_Name = "" then
1062 -- The program name might be specified by a full path name. However,
1063 -- we don't want to print that all out in an error message, so the
1064 -- path might need to be stripped away.
1066 for J in reverse Cindex1 .. Cindex2 loop
1067 if Is_Directory_Separator (Command_Name (J)) then
1073 -- Command_Name(Cindex1 .. Cindex2) is now the equivalent of the
1074 -- POSIX command "basename argv[0]"
1076 -- Strip off any versioning information such as found on VMS.
1077 -- This would take the form of TOOL.exe followed by a ";" or "."
1078 -- and a sequence of one or more numbers.
1080 if Command_Name (Cindex2) in '0' .. '9' then
1081 for J in reverse Cindex1 .. Cindex2 loop
1082 if Command_Name (J) = '.' or Command_Name (J) = ';' then
1087 exit when Command_Name (J) not in '0' .. '9';
1091 -- Strip off any executable extension (usually nothing or .exe)
1092 -- but formally reported by autoconf in the variable EXEEXT
1094 if Cindex2 - Cindex1 >= 4 then
1095 if To_Lower (Command_Name (Cindex2 - 3)) = '.'
1096 and then To_Lower (Command_Name (Cindex2 - 2)) = 'e'
1097 and then To_Lower (Command_Name (Cindex2 - 1)) = 'x'
1098 and then To_Lower (Command_Name (Cindex2)) = 'e'
1100 Cindex2 := Cindex2 - 4;
1104 Name_Len := Cindex2 - Cindex1 + 1;
1105 Name_Buffer (1 .. Name_Len) := Command_Name (Cindex1 .. Cindex2);
1106 end Find_Program_Name;
1108 ------------------------
1109 -- Full_Lib_File_Name --
1110 ------------------------
1112 function Full_Lib_File_Name (N : File_Name_Type) return File_Name_Type is
1114 return Find_File (N, Library);
1115 end Full_Lib_File_Name;
1117 ----------------------------
1118 -- Full_Library_Info_Name --
1119 ----------------------------
1121 function Full_Library_Info_Name return File_Name_Type is
1123 return Current_Full_Lib_Name;
1124 end Full_Library_Info_Name;
1126 ---------------------------
1127 -- Full_Object_File_Name --
1128 ---------------------------
1130 function Full_Object_File_Name return File_Name_Type is
1132 return Current_Full_Obj_Name;
1133 end Full_Object_File_Name;
1135 ----------------------
1136 -- Full_Source_Name --
1137 ----------------------
1139 function Full_Source_Name return File_Name_Type is
1141 return Current_Full_Source_Name;
1142 end Full_Source_Name;
1144 ----------------------
1145 -- Full_Source_Name --
1146 ----------------------
1148 function Full_Source_Name (N : File_Name_Type) return File_Name_Type is
1150 return Smart_Find_File (N, Source);
1151 end Full_Source_Name;
1157 function Get_Directory (Name : File_Name_Type) return File_Name_Type is
1159 Get_Name_String (Name);
1161 for J in reverse 1 .. Name_Len loop
1162 if Is_Directory_Separator (Name_Buffer (J)) then
1168 Name_Len := Hostparm.Normalized_CWD'Length;
1169 Name_Buffer (1 .. Name_Len) := Hostparm.Normalized_CWD;
1173 --------------------------
1174 -- Get_Next_Dir_In_Path --
1175 --------------------------
1177 Search_Path_Pos : Integer;
1178 -- Keeps track of current position in search path. Initialized by the
1179 -- call to Get_Next_Dir_In_Path_Init, updated by Get_Next_Dir_In_Path.
1181 function Get_Next_Dir_In_Path
1182 (Search_Path : String_Access) return String_Access
1184 Lower_Bound : Positive := Search_Path_Pos;
1185 Upper_Bound : Positive;
1189 while Lower_Bound <= Search_Path'Last
1190 and then Search_Path.all (Lower_Bound) = Path_Separator
1192 Lower_Bound := Lower_Bound + 1;
1195 exit when Lower_Bound > Search_Path'Last;
1197 Upper_Bound := Lower_Bound;
1198 while Upper_Bound <= Search_Path'Last
1199 and then Search_Path.all (Upper_Bound) /= Path_Separator
1201 Upper_Bound := Upper_Bound + 1;
1204 Search_Path_Pos := Upper_Bound;
1205 return new String'(Search_Path.all (Lower_Bound .. Upper_Bound - 1));
1209 end Get_Next_Dir_In_Path;
1211 -------------------------------
1212 -- Get_Next_Dir_In_Path_Init --
1213 -------------------------------
1215 procedure Get_Next_Dir_In_Path_Init (Search_Path : String_Access) is
1217 Search_Path_Pos := Search_Path'First;
1218 end Get_Next_Dir_In_Path_Init;
1220 --------------------------------------
1221 -- Get_Primary_Src_Search_Directory --
1222 --------------------------------------
1224 function Get_Primary_Src_Search_Directory return String_Ptr is
1226 return Src_Search_Directories.Table (Primary_Directory);
1227 end Get_Primary_Src_Search_Directory;
1229 ------------------------
1230 -- Get_RTS_Search_Dir --
1231 ------------------------
1233 function Get_RTS_Search_Dir
1234 (Search_Dir : String;
1235 File_Type : Search_File_Type) return String_Ptr
1237 procedure Get_Current_Dir
1238 (Dir : System.Address;
1239 Length : System.Address);
1240 pragma Import (C, Get_Current_Dir, "__gnat_get_current_dir");
1243 pragma Import (C, Max_Path, "__gnat_max_path_len");
1244 -- Maximum length of a path name
1246 Current_Dir : String_Ptr;
1247 Default_Search_Dir : String_Access;
1248 Default_Suffix_Dir : String_Access;
1249 Local_Search_Dir : String_Access;
1250 Norm_Search_Dir : String_Access;
1251 Result_Search_Dir : String_Access;
1252 Search_File : String_Access;
1253 Temp_String : String_Ptr;
1256 -- Add a directory separator at the end of the directory if necessary
1257 -- so that we can directly append a file to the directory
1259 if Search_Dir (Search_Dir'Last) /= Directory_Separator then
1261 new String'(Search_Dir & String'(1 => Directory_Separator));
1263 Local_Search_Dir := new String'(Search_Dir);
1266 if File_Type = Include then
1267 Search_File := Include_Search_File;
1268 Default_Suffix_Dir := new String'("adainclude");
1270 Search_File := Objects_Search_File;
1271 Default_Suffix_Dir := new String'("adalib");
1274 Norm_Search_Dir := To_Canonical_Path_Spec (Local_Search_Dir.all);
1276 if Is_Absolute_Path (Norm_Search_Dir.all) then
1278 -- We first verify if there is a directory Include_Search_Dir
1279 -- containing default search directories
1281 Result_Search_Dir :=
1282 Read_Default_Search_Dirs (Norm_Search_Dir, Search_File, null);
1283 Default_Search_Dir :=
1284 new String'(Norm_Search_Dir.all & Default_Suffix_Dir.all);
1285 Free (Norm_Search_Dir);
1287 if Result_Search_Dir /= null then
1288 return String_Ptr (Result_Search_Dir);
1289 elsif Is_Directory (Default_Search_Dir.all) then
1290 return String_Ptr (Default_Search_Dir);
1295 -- Search in the current directory
1298 -- Get the current directory
1301 Buffer : String (1 .. Max_Path + 2);
1302 Path_Len : Natural := Max_Path;
1305 Get_Current_Dir (Buffer'Address, Path_Len'Address);
1307 if Buffer (Path_Len) /= Directory_Separator then
1308 Path_Len := Path_Len + 1;
1309 Buffer (Path_Len) := Directory_Separator;
1312 Current_Dir := new String'(Buffer (1 .. Path_Len));
1316 new String'(Current_Dir.all & Local_Search_Dir.all);
1318 Result_Search_Dir :=
1319 Read_Default_Search_Dirs (Norm_Search_Dir, Search_File, null);
1321 Default_Search_Dir :=
1322 new String'(Norm_Search_Dir.all & Default_Suffix_Dir.all);
1324 Free (Norm_Search_Dir);
1326 if Result_Search_Dir /= null then
1327 return String_Ptr (Result_Search_Dir);
1329 elsif Is_Directory (Default_Search_Dir.all) then
1330 return String_Ptr (Default_Search_Dir);
1333 -- Search in Search_Dir_Prefix/Search_Dir
1337 (Update_Path (Search_Dir_Prefix).all & Local_Search_Dir.all);
1339 Result_Search_Dir :=
1340 Read_Default_Search_Dirs (Norm_Search_Dir, Search_File, null);
1342 Default_Search_Dir :=
1343 new String'(Norm_Search_Dir.all & Default_Suffix_Dir.all);
1345 Free (Norm_Search_Dir);
1347 if Result_Search_Dir /= null then
1348 return String_Ptr (Result_Search_Dir);
1350 elsif Is_Directory (Default_Search_Dir.all) then
1351 return String_Ptr (Default_Search_Dir);
1354 -- We finally search in Search_Dir_Prefix/rts-Search_Dir
1357 new String'(Update_Path (Search_Dir_Prefix).all & "rts-");
1360 new String'(Temp_String.all & Local_Search_Dir.all);
1362 Result_Search_Dir :=
1363 Read_Default_Search_Dirs (Norm_Search_Dir, Search_File, null);
1365 Default_Search_Dir :=
1366 new String'(Norm_Search_Dir.all & Default_Suffix_Dir.all);
1367 Free (Norm_Search_Dir);
1369 if Result_Search_Dir /= null then
1370 return String_Ptr (Result_Search_Dir);
1372 elsif Is_Directory (Default_Search_Dir.all) then
1373 return String_Ptr (Default_Search_Dir);
1381 end Get_RTS_Search_Dir;
1383 --------------------------------
1384 -- Include_Dir_Default_Prefix --
1385 --------------------------------
1387 function Include_Dir_Default_Prefix return String is
1388 Include_Dir : String_Access :=
1389 String_Access (Update_Path (Include_Dir_Default_Name));
1392 if Include_Dir = null then
1397 Result : constant String := Include_Dir.all;
1403 end Include_Dir_Default_Prefix;
1409 procedure Initialize is
1411 Number_File_Names := 0;
1412 Current_File_Name_Index := 0;
1414 Src_Search_Directories.Init;
1415 Lib_Search_Directories.Init;
1417 -- Start off by setting all suppress options to False, these will
1418 -- be reset later (turning some on if -gnato is not specified, and
1419 -- turning all of them on if -gnatp is specified).
1421 Suppress_Options := (others => False);
1423 -- Reserve the first slot in the search paths table. This is the
1424 -- directory of the main source file or main library file and is filled
1425 -- in by each call to Next_Main_Source/Next_Main_Lib_File with the
1426 -- directory specified for this main source or library file. This is the
1427 -- directory which is searched first by default. This default search is
1428 -- inhibited by the option -I- for both source and library files.
1430 Src_Search_Directories.Set_Last (Primary_Directory);
1431 Src_Search_Directories.Table (Primary_Directory) := new String'("");
1433 Lib_Search_Directories.Set_Last (Primary_Directory);
1434 Lib_Search_Directories.Table (Primary_Directory) := new String'("");
1437 ----------------------------
1438 -- Is_Directory_Separator --
1439 ----------------------------
1441 function Is_Directory_Separator (C : Character) return Boolean is
1443 -- In addition to the default directory_separator allow the '/' to
1444 -- act as separator since this is allowed in MS-DOS, Windows 95/NT,
1445 -- and OS2 ports. On VMS, the situation is more complicated because
1446 -- there are two characters to check for.
1449 C = Directory_Separator
1451 or else (Hostparm.OpenVMS
1452 and then (C = ']' or else C = ':'));
1453 end Is_Directory_Separator;
1455 -------------------------
1456 -- Is_Readonly_Library --
1457 -------------------------
1459 function Is_Readonly_Library (File : File_Name_Type) return Boolean is
1461 Get_Name_String (File);
1463 pragma Assert (Name_Buffer (Name_Len - 3 .. Name_Len) = ".ali");
1465 return not Is_Writable_File (Name_Buffer (1 .. Name_Len));
1466 end Is_Readonly_Library;
1472 function Lib_File_Name
1473 (Source_File : File_Name_Type;
1474 Munit_Index : Nat := 0) return File_Name_Type
1477 Get_Name_String (Source_File);
1479 for J in reverse 2 .. Name_Len loop
1480 if Name_Buffer (J) = '.' then
1486 if Munit_Index /= 0 then
1487 Add_Char_To_Name_Buffer (Multi_Unit_Index_Character);
1488 Add_Nat_To_Name_Buffer (Munit_Index);
1491 Add_Char_To_Name_Buffer ('.');
1492 Add_Str_To_Name_Buffer (ALI_Suffix.all);
1496 ------------------------
1497 -- Library_File_Stamp --
1498 ------------------------
1500 function Library_File_Stamp (N : File_Name_Type) return Time_Stamp_Type is
1502 return File_Stamp (Find_File (N, Library));
1503 end Library_File_Stamp;
1509 function Locate_File
1510 (N : File_Name_Type;
1513 Name : String) return File_Name_Type
1515 Dir_Name : String_Ptr;
1518 -- If Name is already an absolute path, do not look for a directory
1520 if Is_Absolute_Path (Name) then
1523 elsif T = Library then
1524 Dir_Name := Lib_Search_Directories.Table (Dir);
1526 else pragma Assert (T /= Config);
1527 Dir_Name := Src_Search_Directories.Table (Dir);
1531 Full_Name : String (1 .. Dir_Name'Length + Name'Length);
1534 Full_Name (1 .. Dir_Name'Length) := Dir_Name.all;
1535 Full_Name (Dir_Name'Length + 1 .. Full_Name'Length) := Name;
1537 if not Is_Regular_File (Full_Name) then
1541 -- If the file is in the current directory then return N itself
1543 if Dir_Name'Length = 0 then
1546 Name_Len := Full_Name'Length;
1547 Name_Buffer (1 .. Name_Len) := Full_Name;
1554 -------------------------------
1555 -- Matching_Full_Source_Name --
1556 -------------------------------
1558 function Matching_Full_Source_Name
1559 (N : File_Name_Type;
1560 T : Time_Stamp_Type) return File_Name_Type
1563 Get_Name_String (N);
1566 File_Name : constant String := Name_Buffer (1 .. Name_Len);
1567 File : File_Name_Type := No_File;
1571 if Opt.Look_In_Primary_Dir then
1572 File := Locate_File (N, Source, Primary_Directory, File_Name);
1574 if File /= No_File and then T = File_Stamp (N) then
1579 Last_Dir := Src_Search_Directories.Last;
1581 for D in Primary_Directory + 1 .. Last_Dir loop
1582 File := Locate_File (N, Source, D, File_Name);
1584 if File /= No_File and then T = File_Stamp (File) then
1591 end Matching_Full_Source_Name;
1597 function More_Files return Boolean is
1599 return (Current_File_Name_Index < Number_File_Names);
1602 -------------------------------
1603 -- Nb_Dir_In_Obj_Search_Path --
1604 -------------------------------
1606 function Nb_Dir_In_Obj_Search_Path return Natural is
1608 if Opt.Look_In_Primary_Dir then
1609 return Lib_Search_Directories.Last - Primary_Directory + 1;
1611 return Lib_Search_Directories.Last - Primary_Directory;
1613 end Nb_Dir_In_Obj_Search_Path;
1615 -------------------------------
1616 -- Nb_Dir_In_Src_Search_Path --
1617 -------------------------------
1619 function Nb_Dir_In_Src_Search_Path return Natural is
1621 if Opt.Look_In_Primary_Dir then
1622 return Src_Search_Directories.Last - Primary_Directory + 1;
1624 return Src_Search_Directories.Last - Primary_Directory;
1626 end Nb_Dir_In_Src_Search_Path;
1628 --------------------
1629 -- Next_Main_File --
1630 --------------------
1632 function Next_Main_File return File_Name_Type is
1633 File_Name : String_Ptr;
1634 Dir_Name : String_Ptr;
1638 pragma Assert (More_Files);
1640 Current_File_Name_Index := Current_File_Name_Index + 1;
1642 -- Get the file and directory name
1644 File_Name := File_Names (Current_File_Name_Index);
1645 Fptr := File_Name'First;
1647 for J in reverse File_Name'Range loop
1648 if File_Name (J) = Directory_Separator
1649 or else File_Name (J) = '/'
1651 if J = File_Name'Last then
1652 Fail ("File name missing");
1660 -- Save name of directory in which main unit resides for use in
1661 -- locating other units
1663 Dir_Name := new String'(File_Name (File_Name'First .. Fptr - 1));
1665 case Running_Program is
1668 Src_Search_Directories.Table (Primary_Directory) := Dir_Name;
1669 Look_In_Primary_Directory_For_Current_Main := True;
1672 Src_Search_Directories.Table (Primary_Directory) := Dir_Name;
1674 if Fptr > File_Name'First then
1675 Look_In_Primary_Directory_For_Current_Main := True;
1678 when Binder | Gnatls =>
1679 Dir_Name := Normalize_Directory_Name (Dir_Name.all);
1680 Lib_Search_Directories.Table (Primary_Directory) := Dir_Name;
1686 Name_Len := File_Name'Last - Fptr + 1;
1687 Name_Buffer (1 .. Name_Len) := File_Name (Fptr .. File_Name'Last);
1688 Canonical_Case_File_Name (Name_Buffer (1 .. Name_Len));
1689 Current_Main := Name_Find;
1691 -- In the gnatmake case, the main file may have not have the
1692 -- extension. Try ".adb" first then ".ads"
1694 if Running_Program = Make then
1696 Orig_Main : constant File_Name_Type := Current_Main;
1699 if Strip_Suffix (Orig_Main) = Orig_Main then
1701 Append_Suffix_To_File_Name (Orig_Main, ".adb");
1703 if Full_Source_Name (Current_Main) = No_File then
1705 Append_Suffix_To_File_Name (Orig_Main, ".ads");
1707 if Full_Source_Name (Current_Main) = No_File then
1708 Current_Main := Orig_Main;
1715 return Current_Main;
1718 ------------------------------
1719 -- Normalize_Directory_Name --
1720 ------------------------------
1722 function Normalize_Directory_Name (Directory : String) return String_Ptr is
1724 function Is_Quoted (Path : String) return Boolean;
1725 pragma Inline (Is_Quoted);
1726 -- Returns true if Path is quoted (either double or single quotes)
1732 function Is_Quoted (Path : String) return Boolean is
1733 First : constant Character := Path (Path'First);
1734 Last : constant Character := Path (Path'Last);
1737 if (First = ''' and then Last = ''')
1739 (First = '"' and then Last = '"')
1747 Result : String_Ptr;
1749 -- Start of processing for Normalize_Directory_Name
1752 if Directory'Length = 0 then
1753 Result := new String'(Hostparm.Normalized_CWD);
1755 elsif Is_Directory_Separator (Directory (Directory'Last)) then
1756 Result := new String'(Directory);
1758 elsif Is_Quoted (Directory) then
1760 -- This is a quoted string, it certainly means that the directory
1761 -- contains some spaces for example. We can safely remove the quotes
1762 -- here as the OS_Lib.Normalize_Arguments will be called before any
1763 -- spawn routines. This ensure that quotes will be added when needed.
1765 Result := new String (1 .. Directory'Length - 1);
1766 Result (1 .. Directory'Length - 2) :=
1767 Directory (Directory'First + 1 .. Directory'Last - 1);
1768 Result (Result'Last) := Directory_Separator;
1771 Result := new String (1 .. Directory'Length + 1);
1772 Result (1 .. Directory'Length) := Directory;
1773 Result (Directory'Length + 1) := Directory_Separator;
1777 end Normalize_Directory_Name;
1779 ---------------------
1780 -- Number_Of_Files --
1781 ---------------------
1783 function Number_Of_Files return Int is
1785 return Number_File_Names;
1786 end Number_Of_Files;
1788 -------------------------------
1789 -- Object_Dir_Default_Prefix --
1790 -------------------------------
1792 function Object_Dir_Default_Prefix return String is
1793 Object_Dir : String_Access :=
1794 String_Access (Update_Path (Object_Dir_Default_Name));
1797 if Object_Dir = null then
1802 Result : constant String := Object_Dir.all;
1808 end Object_Dir_Default_Prefix;
1810 ----------------------
1811 -- Object_File_Name --
1812 ----------------------
1814 function Object_File_Name (N : File_Name_Type) return File_Name_Type is
1820 Get_Name_String (N);
1821 Name_Len := Name_Len - ALI_Suffix'Length - 1;
1823 for J in Target_Object_Suffix'Range loop
1824 Name_Len := Name_Len + 1;
1825 Name_Buffer (Name_Len) := Target_Object_Suffix (J);
1829 end Object_File_Name;
1831 -------------------------------
1832 -- OS_Exit_Through_Exception --
1833 -------------------------------
1835 procedure OS_Exit_Through_Exception (Status : Integer) is
1837 Current_Exit_Status := Status;
1838 raise Types.Terminate_Program;
1839 end OS_Exit_Through_Exception;
1841 --------------------------
1842 -- OS_Time_To_GNAT_Time --
1843 --------------------------
1845 function OS_Time_To_GNAT_Time (T : OS_Time) return Time_Stamp_Type is
1846 GNAT_Time : Time_Stamp_Type;
1856 GM_Split (T, Y, Mo, D, H, Mn, S);
1862 Minutes => Nat (Mn),
1867 end OS_Time_To_GNAT_Time;
1873 function Program_Name (Nam : String) return String_Access is
1874 Res : String_Access;
1877 -- Get the name of the current program being executed
1881 -- Find the target prefix if any, for the cross compilation case.
1882 -- For instance in "alpha-dec-vxworks-gcc" the target prefix is
1883 -- "alpha-dec-vxworks-"
1885 while Name_Len > 0 loop
1887 -- All done if we find the last hyphen
1889 if Name_Buffer (Name_Len) = '-' then
1892 -- If directory separator found, we don't want to look further
1893 -- since in this case, no prefix has been found.
1895 elsif Is_Directory_Separator (Name_Buffer (Name_Len)) then
1900 Name_Len := Name_Len - 1;
1903 -- Create the new program name
1905 Res := new String (1 .. Name_Len + Nam'Length);
1906 Res.all (1 .. Name_Len) := Name_Buffer (1 .. Name_Len);
1907 Res.all (Name_Len + 1 .. Name_Len + Nam'Length) := Nam;
1911 ------------------------------
1912 -- Read_Default_Search_Dirs --
1913 ------------------------------
1915 function Read_Default_Search_Dirs
1916 (Search_Dir_Prefix : String_Access;
1917 Search_File : String_Access;
1918 Search_Dir_Default_Name : String_Access) return String_Access
1920 Prefix_Len : constant Integer := Search_Dir_Prefix.all'Length;
1921 Buffer : String (1 .. Prefix_Len + Search_File.all'Length + 1);
1922 File_FD : File_Descriptor;
1923 S, S1 : String_Access;
1926 Actual_Len : Integer;
1929 Prev_Was_Separator : Boolean;
1930 Nb_Relative_Dir : Integer;
1932 function Is_Relative (S : String; K : Positive) return Boolean;
1933 pragma Inline (Is_Relative);
1934 -- Returns True if a relative directory specification is found
1935 -- in S at position K, False otherwise.
1941 function Is_Relative (S : String; K : Positive) return Boolean is
1943 return not Is_Absolute_Path (S (K .. S'Last));
1946 -- Start of processing for Read_Default_Search_Dirs
1949 -- Construct a C compatible character string buffer
1951 Buffer (1 .. Search_Dir_Prefix.all'Length)
1952 := Search_Dir_Prefix.all;
1953 Buffer (Search_Dir_Prefix.all'Length + 1 .. Buffer'Last - 1)
1955 Buffer (Buffer'Last) := ASCII.NUL;
1957 File_FD := Open_Read (Buffer'Address, Binary);
1958 if File_FD = Invalid_FD then
1959 return Search_Dir_Default_Name;
1962 Len := Integer (File_Length (File_FD));
1964 -- An extra character for a trailing Path_Separator is allocated
1966 S := new String (1 .. Len + 1);
1967 S (Len + 1) := Path_Separator;
1969 -- Read the file. Note that the loop is not necessary since the
1970 -- whole file is read at once except on VMS.
1974 while Actual_Len /= 0 loop
1975 Actual_Len := Read (File_FD, S (Curr)'Address, Len);
1976 Curr := Curr + Actual_Len;
1979 -- Process the file, translating line and file ending
1980 -- control characters to a path separator character.
1982 Prev_Was_Separator := True;
1983 Nb_Relative_Dir := 0;
1984 for J in 1 .. Len loop
1985 if S (J) in ASCII.NUL .. ASCII.US or else S (J) = ' ' then
1986 S (J) := Path_Separator;
1989 if S (J) = Path_Separator then
1990 Prev_Was_Separator := True;
1993 if Prev_Was_Separator and then Is_Relative (S.all, J) then
1994 Nb_Relative_Dir := Nb_Relative_Dir + 1;
1997 Prev_Was_Separator := False;
2001 if Nb_Relative_Dir = 0 then
2005 -- Add the Search_Dir_Prefix to all relative paths
2007 S1 := new String (1 .. S'Length + Nb_Relative_Dir * Prefix_Len);
2009 Prev_Was_Separator := True;
2010 for J in 1 .. Len + 1 loop
2011 if S (J) = Path_Separator then
2012 Prev_Was_Separator := True;
2015 if Prev_Was_Separator and then Is_Relative (S.all, J) then
2016 S1 (J1 .. J1 + Prefix_Len - 1) := Search_Dir_Prefix.all;
2017 J1 := J1 + Prefix_Len;
2020 Prev_Was_Separator := False;
2028 end Read_Default_Search_Dirs;
2030 -----------------------
2031 -- Read_Library_Info --
2032 -----------------------
2034 function Read_Library_Info
2035 (Lib_File : File_Name_Type;
2036 Fatal_Err : Boolean := False) return Text_Buffer_Ptr
2038 Lib_FD : File_Descriptor;
2039 -- The file descriptor for the current library file. A negative value
2040 -- indicates failure to open the specified source file.
2042 Text : Text_Buffer_Ptr;
2043 -- Allocated text buffer
2046 -- For the calls to Close
2049 Current_Full_Lib_Name := Find_File (Lib_File, Library);
2050 Current_Full_Obj_Name := Object_File_Name (Current_Full_Lib_Name);
2052 if Current_Full_Lib_Name = No_File then
2054 Fail ("Cannot find: ", Name_Buffer (1 .. Name_Len));
2056 Current_Full_Obj_Stamp := Empty_Time_Stamp;
2061 Get_Name_String (Current_Full_Lib_Name);
2062 Name_Buffer (Name_Len + 1) := ASCII.NUL;
2064 -- Open the library FD, note that we open in binary mode, because as
2065 -- documented in the spec, the caller is expected to handle either
2066 -- DOS or Unix mode files, and there is no point in wasting time on
2067 -- text translation when it is not required.
2069 Lib_FD := Open_Read (Name_Buffer'Address, Binary);
2071 if Lib_FD = Invalid_FD then
2073 Fail ("Cannot open: ", Name_Buffer (1 .. Name_Len));
2075 Current_Full_Obj_Stamp := Empty_Time_Stamp;
2080 -- Check for object file consistency if requested
2082 if Opt.Check_Object_Consistency then
2083 Current_Full_Lib_Stamp := File_Stamp (Current_Full_Lib_Name);
2084 Current_Full_Obj_Stamp := File_Stamp (Current_Full_Obj_Name);
2086 if Current_Full_Obj_Stamp (1) = ' ' then
2088 -- When the library is readonly always assume object is consistent
2090 if Is_Readonly_Library (Current_Full_Lib_Name) then
2091 Current_Full_Obj_Stamp := Current_Full_Lib_Stamp;
2093 elsif Fatal_Err then
2094 Get_Name_String (Current_Full_Obj_Name);
2095 Close (Lib_FD, Status);
2097 -- No need to check the status, we fail anyway
2099 Fail ("Cannot find: ", Name_Buffer (1 .. Name_Len));
2102 Current_Full_Obj_Stamp := Empty_Time_Stamp;
2103 Close (Lib_FD, Status);
2105 -- No need to check the status, we return null anyway
2112 -- Read data from the file
2115 Len : constant Integer := Integer (File_Length (Lib_FD));
2116 -- Length of source file text. If it doesn't fit in an integer
2117 -- we're probably stuck anyway (>2 gigs of source seems a lot!)
2119 Actual_Len : Integer := 0;
2121 Lo : constant Text_Ptr := 0;
2122 -- Low bound for allocated text buffer
2124 Hi : Text_Ptr := Text_Ptr (Len);
2125 -- High bound for allocated text buffer. Note length is Len + 1
2126 -- which allows for extra EOF character at the end of the buffer.
2129 -- Allocate text buffer. Note extra character at end for EOF
2131 Text := new Text_Buffer (Lo .. Hi);
2133 -- Some systems (e.g. VMS) have file types that require one
2134 -- read per line, so read until we get the Len bytes or until
2135 -- there are no more characters.
2139 Actual_Len := Read (Lib_FD, Text (Hi)'Address, Len);
2140 Hi := Hi + Text_Ptr (Actual_Len);
2141 exit when Actual_Len = Len or Actual_Len <= 0;
2147 -- Read is complete, close file and we are done
2149 Close (Lib_FD, Status);
2150 -- The status should never be False. But, if it is, what can we do?
2151 -- So, we don't test it.
2155 end Read_Library_Info;
2157 ----------------------
2158 -- Read_Source_File --
2159 ----------------------
2161 procedure Read_Source_File
2162 (N : File_Name_Type;
2164 Hi : out Source_Ptr;
2165 Src : out Source_Buffer_Ptr;
2166 T : File_Type := Source)
2168 Source_File_FD : File_Descriptor;
2169 -- The file descriptor for the current source file. A negative value
2170 -- indicates failure to open the specified source file.
2173 -- Length of file. Assume no more than 2 gigabytes of source!
2175 Actual_Len : Integer;
2178 -- For the call to Close
2181 Current_Full_Source_Name := Find_File (N, T);
2182 Current_Full_Source_Stamp := File_Stamp (Current_Full_Source_Name);
2184 if Current_Full_Source_Name = No_File then
2186 -- If we were trying to access the main file and we could not find
2187 -- it, we have an error.
2189 if N = Current_Main then
2190 Get_Name_String (N);
2191 Fail ("Cannot find: ", Name_Buffer (1 .. Name_Len));
2199 Get_Name_String (Current_Full_Source_Name);
2200 Name_Buffer (Name_Len + 1) := ASCII.NUL;
2202 -- Open the source FD, note that we open in binary mode, because as
2203 -- documented in the spec, the caller is expected to handle either
2204 -- DOS or Unix mode files, and there is no point in wasting time on
2205 -- text translation when it is not required.
2207 Source_File_FD := Open_Read (Name_Buffer'Address, Binary);
2209 if Source_File_FD = Invalid_FD then
2215 -- Prepare to read data from the file
2217 Len := Integer (File_Length (Source_File_FD));
2219 -- Set Hi so that length is one more than the physical length,
2220 -- allowing for the extra EOF character at the end of the buffer
2222 Hi := Lo + Source_Ptr (Len);
2224 -- Do the actual read operation
2227 subtype Actual_Source_Buffer is Source_Buffer (Lo .. Hi);
2228 -- Physical buffer allocated
2230 type Actual_Source_Ptr is access Actual_Source_Buffer;
2231 -- This is the pointer type for the physical buffer allocated
2233 Actual_Ptr : constant Actual_Source_Ptr := new Actual_Source_Buffer;
2234 -- And this is the actual physical buffer
2237 -- Allocate source buffer, allowing extra character at end for EOF
2239 -- Some systems (e.g. VMS) have file types that require one
2240 -- read per line, so read until we get the Len bytes or until
2241 -- there are no more characters.
2245 Actual_Len := Read (Source_File_FD, Actual_Ptr (Hi)'Address, Len);
2246 Hi := Hi + Source_Ptr (Actual_Len);
2247 exit when Actual_Len = Len or Actual_Len <= 0;
2250 Actual_Ptr (Hi) := EOF;
2252 -- Now we need to work out the proper virtual origin pointer to
2253 -- return. This is exactly Actual_Ptr (0)'Address, but we have
2254 -- to be careful to suppress checks to compute this address.
2257 pragma Suppress (All_Checks);
2259 pragma Warnings (Off);
2260 -- This use of unchecked conversion is aliasing safe
2262 function To_Source_Buffer_Ptr is new
2263 Unchecked_Conversion (Address, Source_Buffer_Ptr);
2265 pragma Warnings (On);
2268 Src := To_Source_Buffer_Ptr (Actual_Ptr (0)'Address);
2272 -- Read is complete, get time stamp and close file and we are done
2274 Close (Source_File_FD, Status);
2276 -- The status should never be False. But, if it is, what can we do?
2277 -- So, we don't test it.
2279 end Read_Source_File;
2285 function Relocate_Path
2287 Path : String) return String_Ptr
2291 procedure set_std_prefix (S : String; Len : Integer);
2292 pragma Import (C, set_std_prefix);
2295 if Std_Prefix = null then
2296 Std_Prefix := Executable_Prefix;
2298 if Std_Prefix.all /= "" then
2300 -- Remove trailing directory separator when calling set_std_prefix
2302 set_std_prefix (Std_Prefix.all, Std_Prefix'Length - 1);
2306 if Path (Prefix'Range) = Prefix then
2307 if Std_Prefix.all /= "" then
2309 (1 .. Std_Prefix'Length + Path'Last - Prefix'Last);
2310 S (1 .. Std_Prefix'Length) := Std_Prefix.all;
2311 S (Std_Prefix'Length + 1 .. S'Last) :=
2312 Path (Prefix'Last + 1 .. Path'Last);
2317 return new String'(Path);
2324 procedure Set_Program (P : Program_Type) is
2327 Fail ("Set_Program called twice");
2330 Program_Set := True;
2331 Running_Program := P;
2338 function Shared_Lib (Name : String) return String is
2339 Library : String (1 .. Name'Length + Library_Version'Length + 3);
2340 -- 3 = 2 for "-l" + 1 for "-" before lib version
2343 Library (1 .. 2) := "-l";
2344 Library (3 .. 2 + Name'Length) := Name;
2345 Library (3 + Name'Length) := '-';
2346 Library (4 + Name'Length .. Library'Last) := Library_Version;
2348 if OpenVMS_On_Target then
2349 for K in Library'First + 2 .. Library'Last loop
2350 if Library (K) = '.' or else Library (K) = '-' then
2359 ----------------------
2360 -- Smart_File_Stamp --
2361 ----------------------
2363 function Smart_File_Stamp
2364 (N : File_Name_Type;
2365 T : File_Type) return Time_Stamp_Type
2367 Time_Stamp : Time_Stamp_Type;
2370 if not File_Cache_Enabled then
2371 return File_Stamp (Find_File (N, T));
2374 Time_Stamp := File_Stamp_Hash_Table.Get (N);
2376 if Time_Stamp (1) = ' ' then
2377 Time_Stamp := File_Stamp (Smart_Find_File (N, T));
2378 File_Stamp_Hash_Table.Set (N, Time_Stamp);
2382 end Smart_File_Stamp;
2384 ---------------------
2385 -- Smart_Find_File --
2386 ---------------------
2388 function Smart_Find_File
2389 (N : File_Name_Type;
2390 T : File_Type) return File_Name_Type
2392 Full_File_Name : File_Name_Type;
2395 if not File_Cache_Enabled then
2396 return Find_File (N, T);
2399 Full_File_Name := File_Name_Hash_Table.Get (N);
2401 if Full_File_Name = No_File then
2402 Full_File_Name := Find_File (N, T);
2403 File_Name_Hash_Table.Set (N, Full_File_Name);
2406 return Full_File_Name;
2407 end Smart_Find_File;
2409 ----------------------
2410 -- Source_File_Data --
2411 ----------------------
2413 procedure Source_File_Data (Cache : Boolean) is
2415 File_Cache_Enabled := Cache;
2416 end Source_File_Data;
2418 -----------------------
2419 -- Source_File_Stamp --
2420 -----------------------
2422 function Source_File_Stamp (N : File_Name_Type) return Time_Stamp_Type is
2424 return Smart_File_Stamp (N, Source);
2425 end Source_File_Stamp;
2427 ---------------------
2428 -- Strip_Directory --
2429 ---------------------
2431 function Strip_Directory (Name : File_Name_Type) return File_Name_Type is
2433 Get_Name_String (Name);
2435 for J in reverse 1 .. Name_Len - 1 loop
2437 -- If we find the last directory separator
2439 if Is_Directory_Separator (Name_Buffer (J)) then
2441 -- Return the part of Name that follows this last directory
2444 Name_Buffer (1 .. Name_Len - J) := Name_Buffer (J + 1 .. Name_Len);
2445 Name_Len := Name_Len - J;
2450 -- There were no directory separator, just return Name
2453 end Strip_Directory;
2459 function Strip_Suffix (Name : File_Name_Type) return File_Name_Type is
2461 Get_Name_String (Name);
2463 for J in reverse 2 .. Name_Len loop
2465 -- If we found the last '.', return part of Name that precedes it
2467 if Name_Buffer (J) = '.' then
2476 ---------------------------
2477 -- To_Canonical_Dir_Spec --
2478 ---------------------------
2480 function To_Canonical_Dir_Spec
2482 Prefix_Style : Boolean) return String_Access
2484 function To_Canonical_Dir_Spec
2485 (Host_Dir : Address;
2486 Prefix_Flag : Integer) return Address;
2487 pragma Import (C, To_Canonical_Dir_Spec, "__gnat_to_canonical_dir_spec");
2489 C_Host_Dir : String (1 .. Host_Dir'Length + 1);
2490 Canonical_Dir_Addr : Address;
2491 Canonical_Dir_Len : Integer;
2494 C_Host_Dir (1 .. Host_Dir'Length) := Host_Dir;
2495 C_Host_Dir (C_Host_Dir'Last) := ASCII.NUL;
2497 if Prefix_Style then
2498 Canonical_Dir_Addr := To_Canonical_Dir_Spec (C_Host_Dir'Address, 1);
2500 Canonical_Dir_Addr := To_Canonical_Dir_Spec (C_Host_Dir'Address, 0);
2502 Canonical_Dir_Len := C_String_Length (Canonical_Dir_Addr);
2504 if Canonical_Dir_Len = 0 then
2507 return To_Path_String_Access (Canonical_Dir_Addr, Canonical_Dir_Len);
2512 Fail ("erroneous directory spec: ", Host_Dir);
2514 end To_Canonical_Dir_Spec;
2516 ---------------------------
2517 -- To_Canonical_File_List --
2518 ---------------------------
2520 function To_Canonical_File_List
2521 (Wildcard_Host_File : String;
2522 Only_Dirs : Boolean) return String_Access_List_Access
2524 function To_Canonical_File_List_Init
2525 (Host_File : Address;
2526 Only_Dirs : Integer) return Integer;
2527 pragma Import (C, To_Canonical_File_List_Init,
2528 "__gnat_to_canonical_file_list_init");
2530 function To_Canonical_File_List_Next return Address;
2531 pragma Import (C, To_Canonical_File_List_Next,
2532 "__gnat_to_canonical_file_list_next");
2534 procedure To_Canonical_File_List_Free;
2535 pragma Import (C, To_Canonical_File_List_Free,
2536 "__gnat_to_canonical_file_list_free");
2538 Num_Files : Integer;
2539 C_Wildcard_Host_File : String (1 .. Wildcard_Host_File'Length + 1);
2542 C_Wildcard_Host_File (1 .. Wildcard_Host_File'Length) :=
2544 C_Wildcard_Host_File (C_Wildcard_Host_File'Last) := ASCII.NUL;
2546 -- Do the expansion and say how many there are
2548 Num_Files := To_Canonical_File_List_Init
2549 (C_Wildcard_Host_File'Address, Boolean'Pos (Only_Dirs));
2552 Canonical_File_List : String_Access_List (1 .. Num_Files);
2553 Canonical_File_Addr : Address;
2554 Canonical_File_Len : Integer;
2557 -- Retrieve the expanded directoy names and build the list
2559 for J in 1 .. Num_Files loop
2560 Canonical_File_Addr := To_Canonical_File_List_Next;
2561 Canonical_File_Len := C_String_Length (Canonical_File_Addr);
2562 Canonical_File_List (J) := To_Path_String_Access
2563 (Canonical_File_Addr, Canonical_File_Len);
2566 -- Free up the storage
2568 To_Canonical_File_List_Free;
2570 return new String_Access_List'(Canonical_File_List);
2572 end To_Canonical_File_List;
2574 ----------------------------
2575 -- To_Canonical_File_Spec --
2576 ----------------------------
2578 function To_Canonical_File_Spec
2579 (Host_File : String) return String_Access
2581 function To_Canonical_File_Spec (Host_File : Address) return Address;
2583 (C, To_Canonical_File_Spec, "__gnat_to_canonical_file_spec");
2585 C_Host_File : String (1 .. Host_File'Length + 1);
2586 Canonical_File_Addr : Address;
2587 Canonical_File_Len : Integer;
2590 C_Host_File (1 .. Host_File'Length) := Host_File;
2591 C_Host_File (C_Host_File'Last) := ASCII.NUL;
2593 Canonical_File_Addr := To_Canonical_File_Spec (C_Host_File'Address);
2594 Canonical_File_Len := C_String_Length (Canonical_File_Addr);
2596 if Canonical_File_Len = 0 then
2599 return To_Path_String_Access
2600 (Canonical_File_Addr, Canonical_File_Len);
2605 Fail ("erroneous file spec: ", Host_File);
2607 end To_Canonical_File_Spec;
2609 ----------------------------
2610 -- To_Canonical_Path_Spec --
2611 ----------------------------
2613 function To_Canonical_Path_Spec
2614 (Host_Path : String) return String_Access
2616 function To_Canonical_Path_Spec (Host_Path : Address) return Address;
2618 (C, To_Canonical_Path_Spec, "__gnat_to_canonical_path_spec");
2620 C_Host_Path : String (1 .. Host_Path'Length + 1);
2621 Canonical_Path_Addr : Address;
2622 Canonical_Path_Len : Integer;
2625 C_Host_Path (1 .. Host_Path'Length) := Host_Path;
2626 C_Host_Path (C_Host_Path'Last) := ASCII.NUL;
2628 Canonical_Path_Addr := To_Canonical_Path_Spec (C_Host_Path'Address);
2629 Canonical_Path_Len := C_String_Length (Canonical_Path_Addr);
2631 -- Return a null string (vice a null) for zero length paths, for
2632 -- compatibility with getenv().
2634 return To_Path_String_Access (Canonical_Path_Addr, Canonical_Path_Len);
2638 Fail ("erroneous path spec: ", Host_Path);
2640 end To_Canonical_Path_Spec;
2642 ---------------------------
2643 -- To_Host_Dir_Spec --
2644 ---------------------------
2646 function To_Host_Dir_Spec
2647 (Canonical_Dir : String;
2648 Prefix_Style : Boolean) return String_Access
2650 function To_Host_Dir_Spec
2651 (Canonical_Dir : Address;
2652 Prefix_Flag : Integer) return Address;
2653 pragma Import (C, To_Host_Dir_Spec, "__gnat_to_host_dir_spec");
2655 C_Canonical_Dir : String (1 .. Canonical_Dir'Length + 1);
2656 Host_Dir_Addr : Address;
2657 Host_Dir_Len : Integer;
2660 C_Canonical_Dir (1 .. Canonical_Dir'Length) := Canonical_Dir;
2661 C_Canonical_Dir (C_Canonical_Dir'Last) := ASCII.NUL;
2663 if Prefix_Style then
2664 Host_Dir_Addr := To_Host_Dir_Spec (C_Canonical_Dir'Address, 1);
2666 Host_Dir_Addr := To_Host_Dir_Spec (C_Canonical_Dir'Address, 0);
2668 Host_Dir_Len := C_String_Length (Host_Dir_Addr);
2670 if Host_Dir_Len = 0 then
2673 return To_Path_String_Access (Host_Dir_Addr, Host_Dir_Len);
2675 end To_Host_Dir_Spec;
2677 ----------------------------
2678 -- To_Host_File_Spec --
2679 ----------------------------
2681 function To_Host_File_Spec
2682 (Canonical_File : String) return String_Access
2684 function To_Host_File_Spec (Canonical_File : Address) return Address;
2685 pragma Import (C, To_Host_File_Spec, "__gnat_to_host_file_spec");
2687 C_Canonical_File : String (1 .. Canonical_File'Length + 1);
2688 Host_File_Addr : Address;
2689 Host_File_Len : Integer;
2692 C_Canonical_File (1 .. Canonical_File'Length) := Canonical_File;
2693 C_Canonical_File (C_Canonical_File'Last) := ASCII.NUL;
2695 Host_File_Addr := To_Host_File_Spec (C_Canonical_File'Address);
2696 Host_File_Len := C_String_Length (Host_File_Addr);
2698 if Host_File_Len = 0 then
2701 return To_Path_String_Access
2702 (Host_File_Addr, Host_File_Len);
2704 end To_Host_File_Spec;
2706 ---------------------------
2707 -- To_Path_String_Access --
2708 ---------------------------
2710 function To_Path_String_Access
2711 (Path_Addr : Address;
2712 Path_Len : Integer) return String_Access
2714 subtype Path_String is String (1 .. Path_Len);
2715 type Path_String_Access is access Path_String;
2717 function Address_To_Access is new
2718 Unchecked_Conversion (Source => Address,
2719 Target => Path_String_Access);
2721 Path_Access : constant Path_String_Access :=
2722 Address_To_Access (Path_Addr);
2724 Return_Val : String_Access;
2727 Return_Val := new String (1 .. Path_Len);
2729 for J in 1 .. Path_Len loop
2730 Return_Val (J) := Path_Access (J);
2734 end To_Path_String_Access;
2740 function Update_Path (Path : String_Ptr) return String_Ptr is
2742 function C_Update_Path (Path, Component : Address) return Address;
2743 pragma Import (C, C_Update_Path, "update_path");
2745 function Strlen (Str : Address) return Integer;
2746 pragma Import (C, Strlen, "strlen");
2748 procedure Strncpy (X : Address; Y : Address; Length : Integer);
2749 pragma Import (C, Strncpy, "strncpy");
2751 In_Length : constant Integer := Path'Length;
2752 In_String : String (1 .. In_Length + 1);
2753 Component_Name : aliased String := "GCC" & ASCII.NUL;
2754 Result_Ptr : Address;
2755 Result_Length : Integer;
2756 Out_String : String_Ptr;
2759 In_String (1 .. In_Length) := Path.all;
2760 In_String (In_Length + 1) := ASCII.NUL;
2761 Result_Ptr := C_Update_Path (In_String'Address, Component_Name'Address);
2762 Result_Length := Strlen (Result_Ptr);
2764 Out_String := new String (1 .. Result_Length);
2765 Strncpy (Out_String.all'Address, Result_Ptr, Result_Length);
2773 procedure Write_Info (Info : String) is
2775 Write_With_Check (Info'Address, Info'Length);
2776 Write_With_Check (EOL'Address, 1);
2779 ------------------------
2780 -- Write_Program_Name --
2781 ------------------------
2783 procedure Write_Program_Name is
2784 Save_Buffer : constant String (1 .. Name_Len) :=
2785 Name_Buffer (1 .. Name_Len);
2790 -- Convert the name to lower case so error messages are the same on
2793 for J in 1 .. Name_Len loop
2794 if Name_Buffer (J) in 'A' .. 'Z' then
2796 Character'Val (Character'Pos (Name_Buffer (J)) + 32);
2800 Write_Str (Name_Buffer (1 .. Name_Len));
2802 -- Restore Name_Buffer which was clobbered by the call to
2803 -- Find_Program_Name
2805 Name_Len := Save_Buffer'Last;
2806 Name_Buffer (1 .. Name_Len) := Save_Buffer;
2807 end Write_Program_Name;
2809 ----------------------
2810 -- Write_With_Check --
2811 ----------------------
2813 procedure Write_With_Check (A : Address; N : Integer) is
2817 if N = Write (Output_FD, A, N) then
2821 Write_Str ("error: disk full writing ");
2822 Write_Name_Decoded (Output_File_Name);
2824 Name_Len := Name_Len + 1;
2825 Name_Buffer (Name_Len) := ASCII.NUL;
2826 Delete_File (Name_Buffer'Address, Ignore);
2827 Exit_Program (E_Fatal);
2829 end Write_With_Check;
2831 ----------------------------
2832 -- Package Initialization --
2833 ----------------------------
2836 Initialization : declare
2838 function Get_Default_Identifier_Character_Set return Character;
2839 pragma Import (C, Get_Default_Identifier_Character_Set,
2840 "__gnat_get_default_identifier_character_set");
2841 -- Function to determine the default identifier character set,
2842 -- which is system dependent. See Opt package spec for a list of
2843 -- the possible character codes and their interpretations.
2845 function Get_Maximum_File_Name_Length return Int;
2846 pragma Import (C, Get_Maximum_File_Name_Length,
2847 "__gnat_get_maximum_file_name_length");
2848 -- Function to get maximum file name length for system
2851 Identifier_Character_Set := Get_Default_Identifier_Character_Set;
2852 Maximum_File_Name_Length := Get_Maximum_File_Name_Length;
2854 -- Following should be removed by having above function return
2855 -- Integer'Last as indication of no maximum instead of -1 ???
2857 if Maximum_File_Name_Length = -1 then
2858 Maximum_File_Name_Length := Int'Last;
2861 Src_Search_Directories.Set_Last (Primary_Directory);
2862 Src_Search_Directories.Table (Primary_Directory) := new String'("");
2864 Lib_Search_Directories.Set_Last (Primary_Directory);
2865 Lib_Search_Directories.Table (Primary_Directory) := new String'("");