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 ------------------------------------------------------------------------------
28 with Gnatvsn; use Gnatvsn;
30 with Namet; use Namet;
32 with Output; use Output;
33 with Sdefault; use Sdefault;
36 with System.Case_Util; use System.Case_Util;
38 with Unchecked_Conversion;
40 with GNAT.OS_Lib; use GNAT.OS_Lib;
45 Running_Program : Program_Type := Unspecified;
46 -- comment required here ???
48 Program_Set : Boolean := False;
49 -- comment required here ???
51 Std_Prefix : String_Ptr;
52 -- Standard prefix, computed dynamically the first time Relocate_Path
53 -- is called, and cached for subsequent calls.
55 Empty : aliased String := "";
56 No_Dir : constant String_Ptr := Empty'Access;
57 -- Used in Locate_File as a fake directory when Name is already an
60 -------------------------------------
61 -- Use of Name_Find and Name_Enter --
62 -------------------------------------
64 -- This package creates a number of source, ALI and object file names
65 -- that are used to locate the actual file and for the purpose of
66 -- message construction. These names need not be accessible by Name_Find,
67 -- and can be therefore created by using routine Name_Enter. The files in
68 -- question are file names with a prefix directory (ie the files not
69 -- in the current directory). File names without a prefix directory are
70 -- entered with Name_Find because special values might be attached to
71 -- the various Info fields of the corresponding name table entry.
73 -----------------------
74 -- Local Subprograms --
75 -----------------------
77 function Append_Suffix_To_File_Name
79 Suffix : String) return Name_Id;
80 -- Appends Suffix to Name and returns the new name.
82 function OS_Time_To_GNAT_Time (T : OS_Time) return Time_Stamp_Type;
83 -- Convert OS format time to GNAT format time stamp
85 function Concat (String_One : String; String_Two : String) return String;
86 -- Concatenates 2 strings and returns the result of the concatenation
88 function Executable_Prefix return String_Ptr;
89 -- Returns the name of the root directory where the executable is stored.
90 -- The executable must be located in a directory called "bin", or
91 -- under root/lib/gcc-lib/..., or under root/libexec/gcc/... Thus, if
92 -- the executable is stored in directory "/foo/bar/bin", this routine
93 -- returns "/foo/bar/". Return "" if the location is not recognized
94 -- as described above.
96 function Update_Path (Path : String_Ptr) return String_Ptr;
97 -- Update the specified path to replace the prefix with the location
98 -- where GNAT is installed. See the file prefix.c in GCC for details.
100 procedure Write_With_Check (A : Address; N : Integer);
101 -- Writes N bytes from buffer starting at address A to file whose FD is
102 -- stored in Output_FD, and whose file name is stored as a File_Name_Type
103 -- in Output_File_Name. A check is made for disk full, and if this is
104 -- detected, the file being written is deleted, and a fatal error is
111 Name : String) return File_Name_Type;
112 -- See if the file N whose name is Name exists in directory Dir. Dir is
113 -- an index into the Lib_Search_Directories table if T = Library.
114 -- Otherwise if T = Source, Dir is an index into the
115 -- Src_Search_Directories table. Returns the File_Name_Type of the
116 -- full file name if file found, or No_File if not found.
118 function C_String_Length (S : Address) return Integer;
119 -- Returns length of a C string. Returns zero for a null address.
121 function To_Path_String_Access
122 (Path_Addr : Address;
123 Path_Len : Integer) return String_Access;
124 -- Converts a C String to an Ada String. Are we doing this to avoid
125 -- withing Interfaces.C.Strings ???
127 ------------------------------
128 -- Other Local Declarations --
129 ------------------------------
131 EOL : constant Character := ASCII.LF;
132 -- End of line character
134 Number_File_Names : Int := 0;
135 -- The total number of file names found on command line and placed in
138 Look_In_Primary_Directory_For_Current_Main : Boolean := False;
139 -- When this variable is True, Find_File will only look in
140 -- the Primary_Directory for the Current_Main file.
141 -- This variable is always True for the compiler.
142 -- It is also True for gnatmake, when the soucr name given
143 -- on the command line has directory information.
145 Current_Full_Source_Name : File_Name_Type := No_File;
146 Current_Full_Source_Stamp : Time_Stamp_Type := Empty_Time_Stamp;
147 Current_Full_Lib_Name : File_Name_Type := No_File;
148 Current_Full_Lib_Stamp : Time_Stamp_Type := Empty_Time_Stamp;
149 Current_Full_Obj_Name : File_Name_Type := No_File;
150 Current_Full_Obj_Stamp : Time_Stamp_Type := Empty_Time_Stamp;
151 -- Respectively full name (with directory info) and time stamp of
152 -- the latest source, library and object files opened by Read_Source_File
153 -- and Read_Library_Info.
159 Primary_Directory : constant := 0;
160 -- This is index in the tables created below for the first directory to
161 -- search in for source or library information files. This is the
162 -- directory containing the latest main input file (a source file for
163 -- the compiler or a library file for the binder).
165 package Src_Search_Directories is new Table.Table (
166 Table_Component_Type => String_Ptr,
167 Table_Index_Type => Natural,
168 Table_Low_Bound => Primary_Directory,
170 Table_Increment => 100,
171 Table_Name => "Osint.Src_Search_Directories");
172 -- Table of names of directories in which to search for source (Compiler)
173 -- files. This table is filled in the order in which the directories are
174 -- to be searched, and then used in that order.
176 package Lib_Search_Directories is new Table.Table (
177 Table_Component_Type => String_Ptr,
178 Table_Index_Type => Natural,
179 Table_Low_Bound => Primary_Directory,
181 Table_Increment => 100,
182 Table_Name => "Osint.Lib_Search_Directories");
183 -- Table of names of directories in which to search for library (Binder)
184 -- files. This table is filled in the order in which the directories are
185 -- to be searched and then used in that order. The reason for having two
186 -- distinct tables is that we need them both in gnatmake.
188 ---------------------
189 -- File Hash Table --
190 ---------------------
192 -- The file hash table is provided to free the programmer from any
193 -- efficiency concern when retrieving full file names or time stamps of
194 -- source files. If the programmer calls Source_File_Data (Cache => True)
195 -- he is guaranteed that the price to retrieve the full name (ie with
196 -- directory info) or time stamp of the file will be payed only once,
197 -- the first time the full name is actually searched (or the first time
198 -- the time stamp is actually retrieved). This is achieved by employing
199 -- a hash table that stores as a key the File_Name_Type of the file and
200 -- associates to that File_Name_Type the full file name of the file and its
203 File_Cache_Enabled : Boolean := False;
204 -- Set to true if you want the enable the file data caching mechanism.
206 type File_Hash_Num is range 0 .. 1020;
208 function File_Hash (F : File_Name_Type) return File_Hash_Num;
209 -- Compute hash index for use by Simple_HTable
211 package File_Name_Hash_Table is new GNAT.HTable.Simple_HTable (
212 Header_Num => File_Hash_Num,
213 Element => File_Name_Type,
214 No_Element => No_File,
215 Key => File_Name_Type,
219 package File_Stamp_Hash_Table is new GNAT.HTable.Simple_HTable (
220 Header_Num => File_Hash_Num,
221 Element => Time_Stamp_Type,
222 No_Element => Empty_Time_Stamp,
223 Key => File_Name_Type,
227 function Smart_Find_File
229 T : File_Type) return File_Name_Type;
230 -- Exactly like Find_File except that if File_Cache_Enabled is True this
231 -- routine looks first in the hash table to see if the full name of the
232 -- file is already available.
234 function Smart_File_Stamp
236 T : File_Type) return Time_Stamp_Type;
237 -- Takes the same parameter as the routine above (N is a file name
238 -- without any prefix directory information) and behaves like File_Stamp
239 -- except that if File_Cache_Enabled is True this routine looks first in
240 -- the hash table to see if the file stamp of the file is already
243 -----------------------------
244 -- Add_Default_Search_Dirs --
245 -----------------------------
247 procedure Add_Default_Search_Dirs is
248 Search_Dir : String_Access;
249 Search_Path : String_Access;
250 Path_File_Name : String_Access;
252 procedure Add_Search_Dir
253 (Search_Dir : String;
254 Additional_Source_Dir : Boolean);
255 procedure Add_Search_Dir
256 (Search_Dir : String_Access;
257 Additional_Source_Dir : Boolean);
258 -- Add a source search dir or a library search dir, depending on the
259 -- value of Additional_Source_Dir.
261 procedure Get_Dirs_From_File (Additional_Source_Dir : Boolean);
262 -- Open a path file and read the directory to search, one per line
264 function Get_Libraries_From_Registry return String_Ptr;
265 -- On Windows systems, get the list of installed standard libraries
266 -- from the registry key:
267 -- HKEY_LOCAL_MACHINE\SOFTWARE\Ada Core Technologies\
268 -- GNAT\Standard Libraries
269 -- Return an empty string on other systems
275 procedure Add_Search_Dir
276 (Search_Dir : String;
277 Additional_Source_Dir : Boolean)
280 if Additional_Source_Dir then
281 Add_Src_Search_Dir (Search_Dir);
283 Add_Lib_Search_Dir (Search_Dir);
287 procedure Add_Search_Dir
288 (Search_Dir : String_Access;
289 Additional_Source_Dir : Boolean)
292 if Additional_Source_Dir then
293 Add_Src_Search_Dir (Search_Dir.all);
295 Add_Lib_Search_Dir (Search_Dir.all);
299 ------------------------
300 -- Get_Dirs_From_File --
301 ------------------------
303 procedure Get_Dirs_From_File (Additional_Source_Dir : Boolean) is
304 File_FD : File_Descriptor;
305 Buffer : String (1 .. Path_File_Name'Length + 1);
307 Actual_Len : Natural;
314 -- For the call to Close
317 -- Construct a C compatible character string buffer.
319 Buffer (1 .. Buffer'Last - 1) := Path_File_Name.all;
320 Buffer (Buffer'Last) := ASCII.NUL;
322 File_FD := Open_Read (Buffer'Address, Binary);
324 -- If we cannot open the file, we ignore it, we don't fail
326 if File_FD = Invalid_FD then
330 Len := Integer (File_Length (File_FD));
332 S := new String (1 .. Len);
334 -- Read the file. Note that the loop is not necessary since the
335 -- whole file is read at once except on VMS.
339 while Curr <= Len and then Actual_Len /= 0 loop
340 Actual_Len := Read (File_FD, S (Curr)'Address, Len);
341 Curr := Curr + Actual_Len;
344 -- We are done with the file, so we close it
346 Close (File_FD, Status);
347 -- We ignore any error here, because we have successfully read the
350 -- Now, we read line by line
355 while Curr < Len loop
358 if Ch = ASCII.CR or else Ch = ASCII.LF
359 or else Ch = ASCII.FF or else Ch = ASCII.VT
361 if First <= Curr then
362 Add_Search_Dir (S (First .. Curr), Additional_Source_Dir);
371 -- Last line is a special case, if the file does not end with
372 -- an end of line mark.
374 if First <= S'Last then
375 Add_Search_Dir (S (First .. S'Last), Additional_Source_Dir);
377 end Get_Dirs_From_File;
379 ---------------------------------
380 -- Get_Libraries_From_Registry --
381 ---------------------------------
383 function Get_Libraries_From_Registry return String_Ptr is
384 function C_Get_Libraries_From_Registry return Address;
385 pragma Import (C, C_Get_Libraries_From_Registry,
386 "__gnat_get_libraries_from_registry");
387 function Strlen (Str : Address) return Integer;
388 pragma Import (C, Strlen, "strlen");
389 procedure Strncpy (X : Address; Y : Address; Length : Integer);
390 pragma Import (C, Strncpy, "strncpy");
391 Result_Ptr : Address;
392 Result_Length : Integer;
393 Out_String : String_Ptr;
396 Result_Ptr := C_Get_Libraries_From_Registry;
397 Result_Length := Strlen (Result_Ptr);
399 Out_String := new String (1 .. Result_Length);
400 Strncpy (Out_String.all'Address, Result_Ptr, Result_Length);
402 end Get_Libraries_From_Registry;
404 -- Start of processing for Add_Default_Search_Dirs
407 -- After the locations specified on the command line, the next places
408 -- to look for files are the directories specified by the appropriate
409 -- environment variable. Get this value, extract the directory names
410 -- and store in the tables.
412 -- On VMS, don't expand the logical name (e.g. environment variable),
413 -- just put it into Unix (e.g. canonical) format. System services
414 -- will handle the expansion as part of the file processing.
416 for Additional_Source_Dir in False .. True loop
418 if Additional_Source_Dir then
419 Search_Path := Getenv (Ada_Include_Path);
420 if Search_Path'Length > 0 then
421 if Hostparm.OpenVMS then
422 Search_Path := To_Canonical_Path_Spec ("ADA_INCLUDE_PATH:");
424 Search_Path := To_Canonical_Path_Spec (Search_Path.all);
428 Search_Path := Getenv (Ada_Objects_Path);
429 if Search_Path'Length > 0 then
430 if Hostparm.OpenVMS then
431 Search_Path := To_Canonical_Path_Spec ("ADA_OBJECTS_PATH:");
433 Search_Path := To_Canonical_Path_Spec (Search_Path.all);
438 Get_Next_Dir_In_Path_Init (Search_Path);
440 Search_Dir := Get_Next_Dir_In_Path (Search_Path);
441 exit when Search_Dir = null;
442 Add_Search_Dir (Search_Dir, Additional_Source_Dir);
446 -- Check for eventual project path file env vars
448 Path_File_Name := Getenv (Project_Include_Path_File);
450 if Path_File_Name'Length > 0 then
451 Get_Dirs_From_File (Additional_Source_Dir => True);
454 Path_File_Name := Getenv (Project_Objects_Path_File);
456 if Path_File_Name'Length > 0 then
457 Get_Dirs_From_File (Additional_Source_Dir => False);
460 -- For the compiler, if --RTS= was apecified, add the runtime
463 if RTS_Src_Path_Name /= null and then
464 RTS_Lib_Path_Name /= null
466 Add_Search_Dirs (RTS_Src_Path_Name, Include);
467 Add_Search_Dirs (RTS_Lib_Path_Name, Objects);
470 if not Opt.No_Stdinc then
472 -- For WIN32 systems, look for any system libraries defined in
473 -- the registry. These are added to both source and object
476 Search_Path := String_Access (Get_Libraries_From_Registry);
478 Get_Next_Dir_In_Path_Init (Search_Path);
480 Search_Dir := Get_Next_Dir_In_Path (Search_Path);
481 exit when Search_Dir = null;
482 Add_Search_Dir (Search_Dir, False);
483 Add_Search_Dir (Search_Dir, True);
486 -- The last place to look are the defaults
489 Read_Default_Search_Dirs
490 (String_Access (Update_Path (Search_Dir_Prefix)),
492 String_Access (Update_Path (Include_Dir_Default_Name)));
494 Get_Next_Dir_In_Path_Init (Search_Path);
496 Search_Dir := Get_Next_Dir_In_Path (Search_Path);
497 exit when Search_Dir = null;
498 Add_Search_Dir (Search_Dir, True);
502 if not Opt.No_Stdlib and not Opt.RTS_Switch then
504 Read_Default_Search_Dirs
505 (String_Access (Update_Path (Search_Dir_Prefix)),
507 String_Access (Update_Path (Object_Dir_Default_Name)));
509 Get_Next_Dir_In_Path_Init (Search_Path);
511 Search_Dir := Get_Next_Dir_In_Path (Search_Path);
512 exit when Search_Dir = null;
513 Add_Search_Dir (Search_Dir, False);
517 end Add_Default_Search_Dirs;
523 procedure Add_File (File_Name : String) is
525 Number_File_Names := Number_File_Names + 1;
527 -- As Add_File may be called for mains specified inside
528 -- a project file, File_Names may be too short and needs
531 if Number_File_Names > File_Names'Last then
532 File_Names := new File_Name_Array'(File_Names.all & File_Names.all);
535 File_Names (Number_File_Names) := new String'(File_Name);
538 ------------------------
539 -- Add_Lib_Search_Dir --
540 ------------------------
542 procedure Add_Lib_Search_Dir (Dir : String) is
544 if Dir'Length = 0 then
545 Fail ("missing library directory name");
548 Lib_Search_Directories.Increment_Last;
549 Lib_Search_Directories.Table (Lib_Search_Directories.Last) :=
550 Normalize_Directory_Name (Dir);
551 end Add_Lib_Search_Dir;
553 ---------------------
554 -- Add_Search_Dirs --
555 ---------------------
557 procedure Add_Search_Dirs
558 (Search_Path : String_Ptr;
559 Path_Type : Search_File_Type)
561 Current_Search_Path : String_Access;
564 Get_Next_Dir_In_Path_Init (String_Access (Search_Path));
566 Current_Search_Path :=
567 Get_Next_Dir_In_Path (String_Access (Search_Path));
568 exit when Current_Search_Path = null;
570 if Path_Type = Include then
571 Add_Src_Search_Dir (Current_Search_Path.all);
573 Add_Lib_Search_Dir (Current_Search_Path.all);
578 ------------------------
579 -- Add_Src_Search_Dir --
580 ------------------------
582 procedure Add_Src_Search_Dir (Dir : String) is
584 if Dir'Length = 0 then
585 Fail ("missing source directory name");
588 Src_Search_Directories.Increment_Last;
589 Src_Search_Directories.Table (Src_Search_Directories.Last) :=
590 Normalize_Directory_Name (Dir);
591 end Add_Src_Search_Dir;
593 --------------------------------
594 -- Append_Suffix_To_File_Name --
595 --------------------------------
597 function Append_Suffix_To_File_Name
599 Suffix : String) return Name_Id
602 Get_Name_String (Name);
603 Name_Buffer (Name_Len + 1 .. Name_Len + Suffix'Length) := Suffix;
604 Name_Len := Name_Len + Suffix'Length;
606 end Append_Suffix_To_File_Name;
608 ---------------------
609 -- C_String_Length --
610 ---------------------
612 function C_String_Length (S : Address) return Integer is
613 function Strlen (S : Address) return Integer;
614 pragma Import (C, Strlen, "strlen");
616 if S = Null_Address then
623 ------------------------------
624 -- Canonical_Case_File_Name --
625 ------------------------------
627 -- For now, we only deal with the case of a-z. Eventually we should
628 -- worry about other Latin-1 letters on systems that support this ???
630 procedure Canonical_Case_File_Name (S : in out String) is
632 if not File_Names_Case_Sensitive then
633 for J in S'Range loop
634 if S (J) in 'A' .. 'Z' then
635 S (J) := Character'Val (
636 Character'Pos (S (J)) +
637 Character'Pos ('a') -
638 Character'Pos ('A'));
642 end Canonical_Case_File_Name;
648 function Concat (String_One : String; String_Two : String) return String is
649 Buffer : String (1 .. String_One'Length + String_Two'Length);
651 Buffer (1 .. String_One'Length) := String_One;
652 Buffer (String_One'Length + 1 .. Buffer'Last) := String_Two;
656 ---------------------------
657 -- Create_File_And_Check --
658 ---------------------------
660 procedure Create_File_And_Check
661 (Fdesc : out File_Descriptor;
665 Output_File_Name := Name_Enter;
666 Fdesc := Create_File (Name_Buffer'Address, Fmode);
668 if Fdesc = Invalid_FD then
669 Fail ("Cannot create: ", Name_Buffer (1 .. Name_Len));
671 end Create_File_And_Check;
673 --------------------------------
674 -- Current_Library_File_Stamp --
675 --------------------------------
677 function Current_Library_File_Stamp return Time_Stamp_Type is
679 return Current_Full_Lib_Stamp;
680 end Current_Library_File_Stamp;
682 -------------------------------
683 -- Current_Object_File_Stamp --
684 -------------------------------
686 function Current_Object_File_Stamp return Time_Stamp_Type is
688 return Current_Full_Obj_Stamp;
689 end Current_Object_File_Stamp;
691 -------------------------------
692 -- Current_Source_File_Stamp --
693 -------------------------------
695 function Current_Source_File_Stamp return Time_Stamp_Type is
697 return Current_Full_Source_Stamp;
698 end Current_Source_File_Stamp;
700 ----------------------------
701 -- Dir_In_Obj_Search_Path --
702 ----------------------------
704 function Dir_In_Obj_Search_Path (Position : Natural) return String_Ptr is
706 if Opt.Look_In_Primary_Dir then
708 Lib_Search_Directories.Table (Primary_Directory + Position - 1);
710 return Lib_Search_Directories.Table (Primary_Directory + Position);
712 end Dir_In_Obj_Search_Path;
714 ----------------------------
715 -- Dir_In_Src_Search_Path --
716 ----------------------------
718 function Dir_In_Src_Search_Path (Position : Natural) return String_Ptr is
720 if Opt.Look_In_Primary_Dir then
722 Src_Search_Directories.Table (Primary_Directory + Position - 1);
724 return Src_Search_Directories.Table (Primary_Directory + Position);
726 end Dir_In_Src_Search_Path;
728 ---------------------
729 -- Executable_Name --
730 ---------------------
732 function Executable_Name (Name : File_Name_Type) return File_Name_Type is
733 Exec_Suffix : String_Access;
736 if Name = No_File then
740 Get_Name_String (Name);
741 Exec_Suffix := Get_Executable_Suffix;
743 for J in Exec_Suffix'Range loop
744 Name_Len := Name_Len + 1;
745 Name_Buffer (Name_Len) := Exec_Suffix (J);
753 -----------------------
754 -- Executable_Prefix --
755 -----------------------
757 function Executable_Prefix return String_Ptr is
758 function Get_Install_Dir (Exec : String) return String_Ptr;
759 -- S is the executable name preceeded by the absolute or relative
760 -- path, e.g. "c:\usr\bin\gcc.exe" or "..\bin\gcc".
762 ---------------------
763 -- Get_Install_Dir --
764 ---------------------
766 function Get_Install_Dir (Exec : String) return String_Ptr is
768 for J in reverse Exec'Range loop
769 if Is_Directory_Separator (Exec (J)) then
770 if J < Exec'Last - 5 then
771 if (To_Lower (Exec (J + 1)) = 'l'
772 and then To_Lower (Exec (J + 2)) = 'i'
773 and then To_Lower (Exec (J + 3)) = 'b')
775 (To_Lower (Exec (J + 1)) = 'b'
776 and then To_Lower (Exec (J + 2)) = 'i'
777 and then To_Lower (Exec (J + 3)) = 'n')
779 return new String'(Exec (Exec'First .. J));
785 return new String'("");
788 -- Start of processing for Executable_Prefix
791 if Exec_Name = null then
792 Exec_Name := new String (1 .. Len_Arg (0));
793 Osint.Fill_Arg (Exec_Name (1)'Address, 0);
796 -- First determine if a path prefix was placed in front of the
799 for J in reverse Exec_Name'Range loop
800 if Is_Directory_Separator (Exec_Name (J)) then
801 return Get_Install_Dir (Exec_Name.all);
805 -- If we come here, the user has typed the executable name with no
808 return Get_Install_Dir
809 (GNAT.OS_Lib.Locate_Exec_On_Path (Exec_Name.all).all);
810 end Executable_Prefix;
816 procedure Exit_Program (Exit_Code : Exit_Code_Type) is
818 -- The program will exit with the following status:
820 -- 0 if the object file has been generated (with or without warnings)
821 -- 1 if recompilation was not needed (smart recompilation)
822 -- 2 if gnat1 has been killed by a signal (detected by GCC)
823 -- 4 for a fatal error
824 -- 5 if there were errors
825 -- 6 if no code has been generated (spec)
827 -- Note that exit code 3 is not used and must not be used as this is
828 -- the code returned by a program aborted via C abort() routine on
829 -- Windows. GCC checks for that case and thinks that the child process
830 -- has been aborted. This code (exit code 3) used to be the code used
831 -- for E_No_Code, but E_No_Code was changed to 6 for this reason.
834 when E_Success => OS_Exit (0);
835 when E_Warnings => OS_Exit (0);
836 when E_No_Compile => OS_Exit (1);
837 when E_Fatal => OS_Exit (4);
838 when E_Errors => OS_Exit (5);
839 when E_No_Code => OS_Exit (6);
840 when E_Abort => OS_Abort;
848 procedure Fail (S1 : String; S2 : String := ""; S3 : String := "") is
850 -- We use Output in case there is a special output set up.
851 -- In this case Set_Standard_Error will have no immediate effect.
854 Osint.Write_Program_Name;
861 Exit_Program (E_Fatal);
868 function File_Hash (F : File_Name_Type) return File_Hash_Num is
870 return File_Hash_Num (Int (F) rem File_Hash_Num'Range_Length);
877 function File_Stamp (Name : File_Name_Type) return Time_Stamp_Type is
879 if Name = No_File then
880 return Empty_Time_Stamp;
883 Get_Name_String (Name);
885 if not Is_Regular_File (Name_Buffer (1 .. Name_Len)) then
886 return Empty_Time_Stamp;
888 Name_Buffer (Name_Len + 1) := ASCII.NUL;
889 return OS_Time_To_GNAT_Time (File_Time_Stamp (Name_Buffer));
899 T : File_Type) return File_Name_Type
905 File_Name : String renames Name_Buffer (1 .. Name_Len);
906 File : File_Name_Type := No_File;
910 -- If we are looking for a config file, look only in the current
911 -- directory, i.e. return input argument unchanged. Also look
912 -- only in the current directory if we are looking for a .dg
913 -- file (happens in -gnatD mode)
916 or else (Debug_Generated_Code
917 and then Name_Len > 3
919 (Name_Buffer (Name_Len - 2 .. Name_Len) = ".dg"
921 (Hostparm.OpenVMS and then
922 Name_Buffer (Name_Len - 2 .. Name_Len) = "_dg")))
926 -- If we are trying to find the current main file just look in the
927 -- directory where the user said it was.
929 elsif Look_In_Primary_Directory_For_Current_Main
930 and then Current_Main = N
932 return Locate_File (N, T, Primary_Directory, File_Name);
934 -- Otherwise do standard search for source file
937 -- Check the mapping of this file name
939 File := Mapped_Path_Name (N);
941 -- If the file name is mapped to a path name, return the
942 -- corresponding path name
944 if File /= No_File then
945 -- For locally removed file, Error_Name is returned; then
946 -- return No_File, indicating the file is not a source.
948 if File = Error_Name then
956 -- First place to look is in the primary directory (i.e. the same
957 -- directory as the source) unless this has been disabled with -I-
959 if Opt.Look_In_Primary_Dir then
960 File := Locate_File (N, T, Primary_Directory, File_Name);
962 if File /= No_File then
967 -- Finally look in directories specified with switches -I/-aI/-aO
970 Last_Dir := Lib_Search_Directories.Last;
972 Last_Dir := Src_Search_Directories.Last;
975 for D in Primary_Directory + 1 .. Last_Dir loop
976 File := Locate_File (N, T, D, File_Name);
978 if File /= No_File then
988 -----------------------
989 -- Find_Program_Name --
990 -----------------------
992 procedure Find_Program_Name is
993 Command_Name : String (1 .. Len_Arg (0));
994 Cindex1 : Integer := Command_Name'First;
995 Cindex2 : Integer := Command_Name'Last;
998 Fill_Arg (Command_Name'Address, 0);
1000 -- The program name might be specified by a full path name. However,
1001 -- we don't want to print that all out in an error message, so the
1002 -- path might need to be stripped away.
1004 for J in reverse Cindex1 .. Cindex2 loop
1005 if Is_Directory_Separator (Command_Name (J)) then
1011 -- Command_Name(Cindex1 .. Cindex2) is now the equivalent of the
1012 -- POSIX command "basename argv[0]"
1014 -- Strip off any versioning information such as found on VMS.
1015 -- This would take the form of TOOL.exe followed by a ";" or "."
1016 -- and a sequence of one or more numbers.
1018 if Command_Name (Cindex2) in '0' .. '9' then
1019 for J in reverse Cindex1 .. Cindex2 loop
1021 exit when Command_Name (J) not in '0' .. '9';
1023 if Command_Name (J) = '.' or Command_Name (J) = ';' then
1030 -- Strip off any executable extension (usually nothing or .exe)
1031 -- but formally reported by autoconf in the variable EXEEXT
1033 if Cindex2 - Cindex1 >= 4 then
1034 if To_Lower (Command_Name (Cindex2 - 3)) = '.'
1035 and then To_Lower (Command_Name (Cindex2 - 2)) = 'e'
1036 and then To_Lower (Command_Name (Cindex2 - 1)) = 'x'
1037 and then To_Lower (Command_Name (Cindex2)) = 'e'
1039 Cindex2 := Cindex2 - 4;
1043 Name_Len := Cindex2 - Cindex1 + 1;
1044 Name_Buffer (1 .. Name_Len) := Command_Name (Cindex1 .. Cindex2);
1045 end Find_Program_Name;
1047 ------------------------
1048 -- Full_Lib_File_Name --
1049 ------------------------
1051 function Full_Lib_File_Name (N : File_Name_Type) return File_Name_Type is
1053 return Find_File (N, Library);
1054 end Full_Lib_File_Name;
1056 ----------------------------
1057 -- Full_Library_Info_Name --
1058 ----------------------------
1060 function Full_Library_Info_Name return File_Name_Type is
1062 return Current_Full_Lib_Name;
1063 end Full_Library_Info_Name;
1065 ---------------------------
1066 -- Full_Object_File_Name --
1067 ---------------------------
1069 function Full_Object_File_Name return File_Name_Type is
1071 return Current_Full_Obj_Name;
1072 end Full_Object_File_Name;
1074 ----------------------
1075 -- Full_Source_Name --
1076 ----------------------
1078 function Full_Source_Name return File_Name_Type is
1080 return Current_Full_Source_Name;
1081 end Full_Source_Name;
1083 ----------------------
1084 -- Full_Source_Name --
1085 ----------------------
1087 function Full_Source_Name (N : File_Name_Type) return File_Name_Type is
1089 return Smart_Find_File (N, Source);
1090 end Full_Source_Name;
1096 function Get_Directory (Name : File_Name_Type) return File_Name_Type is
1098 Get_Name_String (Name);
1100 for J in reverse 1 .. Name_Len loop
1101 if Is_Directory_Separator (Name_Buffer (J)) then
1107 Name_Len := Hostparm.Normalized_CWD'Length;
1108 Name_Buffer (1 .. Name_Len) := Hostparm.Normalized_CWD;
1112 --------------------------
1113 -- Get_Next_Dir_In_Path --
1114 --------------------------
1116 Search_Path_Pos : Integer;
1117 -- Keeps track of current position in search path. Initialized by the
1118 -- call to Get_Next_Dir_In_Path_Init, updated by Get_Next_Dir_In_Path.
1120 function Get_Next_Dir_In_Path
1121 (Search_Path : String_Access) return String_Access
1123 Lower_Bound : Positive := Search_Path_Pos;
1124 Upper_Bound : Positive;
1128 while Lower_Bound <= Search_Path'Last
1129 and then Search_Path.all (Lower_Bound) = Path_Separator
1131 Lower_Bound := Lower_Bound + 1;
1134 exit when Lower_Bound > Search_Path'Last;
1136 Upper_Bound := Lower_Bound;
1137 while Upper_Bound <= Search_Path'Last
1138 and then Search_Path.all (Upper_Bound) /= Path_Separator
1140 Upper_Bound := Upper_Bound + 1;
1143 Search_Path_Pos := Upper_Bound;
1144 return new String'(Search_Path.all (Lower_Bound .. Upper_Bound - 1));
1148 end Get_Next_Dir_In_Path;
1150 -------------------------------
1151 -- Get_Next_Dir_In_Path_Init --
1152 -------------------------------
1154 procedure Get_Next_Dir_In_Path_Init (Search_Path : String_Access) is
1156 Search_Path_Pos := Search_Path'First;
1157 end Get_Next_Dir_In_Path_Init;
1159 --------------------------------------
1160 -- Get_Primary_Src_Search_Directory --
1161 --------------------------------------
1163 function Get_Primary_Src_Search_Directory return String_Ptr is
1165 return Src_Search_Directories.Table (Primary_Directory);
1166 end Get_Primary_Src_Search_Directory;
1168 -------------------------
1169 -- Get_RTS_Search_Dir --
1170 -------------------------
1172 function Get_RTS_Search_Dir
1173 (Search_Dir : String;
1174 File_Type : Search_File_Type) return String_Ptr
1176 procedure Get_Current_Dir
1177 (Dir : System.Address;
1178 Length : System.Address);
1179 pragma Import (C, Get_Current_Dir, "__gnat_get_current_dir");
1182 pragma Import (C, Max_Path, "__gnat_max_path_len");
1183 -- Maximum length of a path name
1185 Current_Dir : String_Ptr;
1186 Default_Search_Dir : String_Access;
1187 Default_Suffix_Dir : String_Access;
1188 Local_Search_Dir : String_Access;
1189 Norm_Search_Dir : String_Access;
1190 Result_Search_Dir : String_Access;
1191 Search_File : String_Access;
1192 Temp_String : String_Ptr;
1195 -- Add a directory separator at the end of the directory if necessary
1196 -- so that we can directly append a file to the directory
1198 if Search_Dir (Search_Dir'Last) /= Directory_Separator then
1199 Local_Search_Dir := new String'
1200 (Concat (Search_Dir, String'(1 => Directory_Separator)));
1202 Local_Search_Dir := new String'(Search_Dir);
1205 if File_Type = Include then
1206 Search_File := Include_Search_File;
1207 Default_Suffix_Dir := new String'("adainclude");
1209 Search_File := Objects_Search_File;
1210 Default_Suffix_Dir := new String'("adalib");
1213 Norm_Search_Dir := To_Canonical_Path_Spec (Local_Search_Dir.all);
1215 if Is_Absolute_Path (Norm_Search_Dir.all) then
1217 -- We first verify if there is a directory Include_Search_Dir
1218 -- containing default search directories
1221 := Read_Default_Search_Dirs (Norm_Search_Dir,
1224 Default_Search_Dir := new String'
1225 (Concat (Norm_Search_Dir.all, Default_Suffix_Dir.all));
1226 Free (Norm_Search_Dir);
1228 if Result_Search_Dir /= null then
1229 return String_Ptr (Result_Search_Dir);
1230 elsif Is_Directory (Default_Search_Dir.all) then
1231 return String_Ptr (Default_Search_Dir);
1236 -- Search in the current directory
1239 -- Get the current directory
1242 Buffer : String (1 .. Max_Path + 2);
1243 Path_Len : Natural := Max_Path;
1246 Get_Current_Dir (Buffer'Address, Path_Len'Address);
1248 if Buffer (Path_Len) /= Directory_Separator then
1249 Path_Len := Path_Len + 1;
1250 Buffer (Path_Len) := Directory_Separator;
1253 Current_Dir := new String'(Buffer (1 .. Path_Len));
1257 new String'(Concat (Current_Dir.all, Local_Search_Dir.all));
1259 Result_Search_Dir :=
1260 Read_Default_Search_Dirs (Norm_Search_Dir, Search_File, null);
1262 Default_Search_Dir :=
1264 (Concat (Norm_Search_Dir.all, Default_Suffix_Dir.all));
1266 Free (Norm_Search_Dir);
1268 if Result_Search_Dir /= null then
1269 return String_Ptr (Result_Search_Dir);
1271 elsif Is_Directory (Default_Search_Dir.all) then
1272 return String_Ptr (Default_Search_Dir);
1275 -- Search in Search_Dir_Prefix/Search_Dir
1279 (Concat (Update_Path (Search_Dir_Prefix).all,
1280 Local_Search_Dir.all));
1282 Result_Search_Dir :=
1283 Read_Default_Search_Dirs (Norm_Search_Dir, Search_File, null);
1285 Default_Search_Dir :=
1287 (Concat (Norm_Search_Dir.all, Default_Suffix_Dir.all));
1289 Free (Norm_Search_Dir);
1291 if Result_Search_Dir /= null then
1292 return String_Ptr (Result_Search_Dir);
1294 elsif Is_Directory (Default_Search_Dir.all) then
1295 return String_Ptr (Default_Search_Dir);
1298 -- We finally search in Search_Dir_Prefix/rts-Search_Dir
1302 (Concat (Update_Path (Search_Dir_Prefix).all, "rts-"));
1305 new String'(Concat (Temp_String.all, Local_Search_Dir.all));
1307 Result_Search_Dir :=
1308 Read_Default_Search_Dirs (Norm_Search_Dir, Search_File, null);
1310 Default_Search_Dir :=
1312 (Concat (Norm_Search_Dir.all, Default_Suffix_Dir.all));
1313 Free (Norm_Search_Dir);
1315 if Result_Search_Dir /= null then
1316 return String_Ptr (Result_Search_Dir);
1318 elsif Is_Directory (Default_Search_Dir.all) then
1319 return String_Ptr (Default_Search_Dir);
1327 end Get_RTS_Search_Dir;
1329 --------------------------------
1330 -- Include_Dir_Default_Prefix --
1331 --------------------------------
1333 function Include_Dir_Default_Prefix return String is
1334 Include_Dir : String_Access :=
1335 String_Access (Update_Path (Include_Dir_Default_Name));
1338 if Include_Dir = null then
1343 Result : constant String := Include_Dir.all;
1349 end Include_Dir_Default_Prefix;
1355 procedure Initialize is
1357 Number_File_Names := 0;
1358 Current_File_Name_Index := 0;
1360 Src_Search_Directories.Init;
1361 Lib_Search_Directories.Init;
1363 -- Start off by setting all suppress options to False, these will
1364 -- be reset later (turning some on if -gnato is not specified, and
1365 -- turning all of them on if -gnatp is specified).
1367 Suppress_Options := (others => False);
1369 -- Reserve the first slot in the search paths table. This is the
1370 -- directory of the main source file or main library file and is
1371 -- filled in by each call to Next_Main_Source/Next_Main_Lib_File with
1372 -- the directory specified for this main source or library file. This
1373 -- is the directory which is searched first by default. This default
1374 -- search is inhibited by the option -I- for both source and library
1377 Src_Search_Directories.Set_Last (Primary_Directory);
1378 Src_Search_Directories.Table (Primary_Directory) := new String'("");
1380 Lib_Search_Directories.Set_Last (Primary_Directory);
1381 Lib_Search_Directories.Table (Primary_Directory) := new String'("");
1384 ----------------------------
1385 -- Is_Directory_Separator --
1386 ----------------------------
1388 function Is_Directory_Separator (C : Character) return Boolean is
1390 -- In addition to the default directory_separator allow the '/' to
1391 -- act as separator since this is allowed in MS-DOS, Windows 95/NT,
1392 -- and OS2 ports. On VMS, the situation is more complicated because
1393 -- there are two characters to check for.
1396 C = Directory_Separator
1398 or else (Hostparm.OpenVMS
1399 and then (C = ']' or else C = ':'));
1400 end Is_Directory_Separator;
1402 -------------------------
1403 -- Is_Readonly_Library --
1404 -------------------------
1406 function Is_Readonly_Library (File : in File_Name_Type) return Boolean is
1408 Get_Name_String (File);
1410 pragma Assert (Name_Buffer (Name_Len - 3 .. Name_Len) = ".ali");
1412 return not Is_Writable_File (Name_Buffer (1 .. Name_Len));
1413 end Is_Readonly_Library;
1419 function Lib_File_Name
1420 (Source_File : File_Name_Type;
1421 Munit_Index : Nat := 0) return File_Name_Type
1424 Get_Name_String (Source_File);
1426 for J in reverse 2 .. Name_Len loop
1427 if Name_Buffer (J) = '.' then
1433 if Munit_Index /= 0 then
1434 Add_Char_To_Name_Buffer (Multi_Unit_Index_Character);
1435 Add_Nat_To_Name_Buffer (Munit_Index);
1438 Add_Char_To_Name_Buffer ('.');
1439 Add_Str_To_Name_Buffer (ALI_Suffix.all);
1443 ------------------------
1444 -- Library_File_Stamp --
1445 ------------------------
1447 function Library_File_Stamp (N : File_Name_Type) return Time_Stamp_Type is
1449 return File_Stamp (Find_File (N, Library));
1450 end Library_File_Stamp;
1456 function Locate_File
1457 (N : File_Name_Type;
1460 Name : String) return File_Name_Type
1462 Dir_Name : String_Ptr;
1465 -- If Name is already an absolute path, do not look for a directory
1467 if Is_Absolute_Path (Name) then
1470 elsif T = Library then
1471 Dir_Name := Lib_Search_Directories.Table (Dir);
1473 else pragma Assert (T /= Config);
1474 Dir_Name := Src_Search_Directories.Table (Dir);
1478 Full_Name : String (1 .. Dir_Name'Length + Name'Length);
1481 Full_Name (1 .. Dir_Name'Length) := Dir_Name.all;
1482 Full_Name (Dir_Name'Length + 1 .. Full_Name'Length) := Name;
1484 if not Is_Regular_File (Full_Name) then
1488 -- If the file is in the current directory then return N itself
1490 if Dir_Name'Length = 0 then
1493 Name_Len := Full_Name'Length;
1494 Name_Buffer (1 .. Name_Len) := Full_Name;
1501 -------------------------------
1502 -- Matching_Full_Source_Name --
1503 -------------------------------
1505 function Matching_Full_Source_Name
1506 (N : File_Name_Type;
1507 T : Time_Stamp_Type) return File_Name_Type
1510 Get_Name_String (N);
1513 File_Name : constant String := Name_Buffer (1 .. Name_Len);
1514 File : File_Name_Type := No_File;
1518 if Opt.Look_In_Primary_Dir then
1519 File := Locate_File (N, Source, Primary_Directory, File_Name);
1521 if File /= No_File and then T = File_Stamp (N) then
1526 Last_Dir := Src_Search_Directories.Last;
1528 for D in Primary_Directory + 1 .. Last_Dir loop
1529 File := Locate_File (N, Source, D, File_Name);
1531 if File /= No_File and then T = File_Stamp (File) then
1538 end Matching_Full_Source_Name;
1544 function More_Files return Boolean is
1546 return (Current_File_Name_Index < Number_File_Names);
1549 -------------------------------
1550 -- Nb_Dir_In_Obj_Search_Path --
1551 -------------------------------
1553 function Nb_Dir_In_Obj_Search_Path return Natural is
1555 if Opt.Look_In_Primary_Dir then
1556 return Lib_Search_Directories.Last - Primary_Directory + 1;
1558 return Lib_Search_Directories.Last - Primary_Directory;
1560 end Nb_Dir_In_Obj_Search_Path;
1562 -------------------------------
1563 -- Nb_Dir_In_Src_Search_Path --
1564 -------------------------------
1566 function Nb_Dir_In_Src_Search_Path return Natural is
1568 if Opt.Look_In_Primary_Dir then
1569 return Src_Search_Directories.Last - Primary_Directory + 1;
1571 return Src_Search_Directories.Last - Primary_Directory;
1573 end Nb_Dir_In_Src_Search_Path;
1575 --------------------
1576 -- Next_Main_File --
1577 --------------------
1579 function Next_Main_File return File_Name_Type is
1580 File_Name : String_Ptr;
1581 Dir_Name : String_Ptr;
1585 pragma Assert (More_Files);
1587 Current_File_Name_Index := Current_File_Name_Index + 1;
1589 -- Get the file and directory name
1591 File_Name := File_Names (Current_File_Name_Index);
1592 Fptr := File_Name'First;
1594 for J in reverse File_Name'Range loop
1595 if File_Name (J) = Directory_Separator
1596 or else File_Name (J) = '/'
1598 if J = File_Name'Last then
1599 Fail ("File name missing");
1607 -- Save name of directory in which main unit resides for use in
1608 -- locating other units
1610 Dir_Name := new String'(File_Name (File_Name'First .. Fptr - 1));
1612 case Running_Program is
1615 Src_Search_Directories.Table (Primary_Directory) := Dir_Name;
1616 Look_In_Primary_Directory_For_Current_Main := True;
1619 Src_Search_Directories.Table (Primary_Directory) := Dir_Name;
1621 if Fptr > File_Name'First then
1622 Look_In_Primary_Directory_For_Current_Main := True;
1625 when Binder | Gnatls =>
1626 Dir_Name := Normalize_Directory_Name (Dir_Name.all);
1627 Lib_Search_Directories.Table (Primary_Directory) := Dir_Name;
1633 Name_Len := File_Name'Last - Fptr + 1;
1634 Name_Buffer (1 .. Name_Len) := File_Name (Fptr .. File_Name'Last);
1635 Canonical_Case_File_Name (Name_Buffer (1 .. Name_Len));
1636 Current_Main := File_Name_Type (Name_Find);
1638 -- In the gnatmake case, the main file may have not have the
1639 -- extension. Try ".adb" first then ".ads"
1641 if Running_Program = Make then
1643 Orig_Main : constant File_Name_Type := Current_Main;
1646 if Strip_Suffix (Orig_Main) = Orig_Main then
1647 Current_Main := Append_Suffix_To_File_Name (Orig_Main, ".adb");
1649 if Full_Source_Name (Current_Main) = No_File then
1651 Append_Suffix_To_File_Name (Orig_Main, ".ads");
1653 if Full_Source_Name (Current_Main) = No_File then
1654 Current_Main := Orig_Main;
1661 return Current_Main;
1664 ------------------------------
1665 -- Normalize_Directory_Name --
1666 ------------------------------
1668 function Normalize_Directory_Name (Directory : String) return String_Ptr is
1670 function Is_Quoted (Path : String) return Boolean;
1671 pragma Inline (Is_Quoted);
1672 -- Returns true if Path is quoted (either double or single quotes)
1678 function Is_Quoted (Path : String) return Boolean is
1679 First : constant Character := Path (Path'First);
1680 Last : constant Character := Path (Path'Last);
1683 if (First = ''' and then Last = ''')
1685 (First = '"' and then Last = '"')
1693 Result : String_Ptr;
1695 -- Start of processing for Normalize_Directory_Name
1698 if Directory'Length = 0 then
1699 Result := new String'(Hostparm.Normalized_CWD);
1701 elsif Is_Directory_Separator (Directory (Directory'Last)) then
1702 Result := new String'(Directory);
1704 elsif Is_Quoted (Directory) then
1706 -- This is a quoted string, it certainly means that the directory
1707 -- contains some spaces for example. We can safely remove the quotes
1708 -- here as the OS_Lib.Normalize_Arguments will be called before any
1709 -- spawn routines. This ensure that quotes will be added when needed.
1711 Result := new String (1 .. Directory'Length - 1);
1712 Result (1 .. Directory'Length - 1) :=
1713 Directory (Directory'First + 1 .. Directory'Last - 1);
1714 Result (Result'Last) := Directory_Separator;
1717 Result := new String (1 .. Directory'Length + 1);
1718 Result (1 .. Directory'Length) := Directory;
1719 Result (Directory'Length + 1) := Directory_Separator;
1723 end Normalize_Directory_Name;
1725 ---------------------
1726 -- Number_Of_Files --
1727 ---------------------
1729 function Number_Of_Files return Int is
1731 return Number_File_Names;
1732 end Number_Of_Files;
1734 -------------------------------
1735 -- Object_Dir_Default_Prefix --
1736 -------------------------------
1738 function Object_Dir_Default_Prefix return String is
1739 Object_Dir : String_Access :=
1740 String_Access (Update_Path (Object_Dir_Default_Name));
1743 if Object_Dir = null then
1748 Result : constant String := Object_Dir.all;
1754 end Object_Dir_Default_Prefix;
1756 ----------------------
1757 -- Object_File_Name --
1758 ----------------------
1760 function Object_File_Name (N : File_Name_Type) return File_Name_Type is
1766 Get_Name_String (N);
1767 Name_Len := Name_Len - ALI_Suffix'Length - 1;
1769 for J in Object_Suffix'Range loop
1770 Name_Len := Name_Len + 1;
1771 Name_Buffer (Name_Len) := Object_Suffix (J);
1775 end Object_File_Name;
1777 --------------------------
1778 -- OS_Time_To_GNAT_Time --
1779 --------------------------
1781 function OS_Time_To_GNAT_Time (T : OS_Time) return Time_Stamp_Type is
1782 GNAT_Time : Time_Stamp_Type;
1792 GM_Split (T, Y, Mo, D, H, Mn, S);
1798 Minutes => Nat (Mn),
1803 end OS_Time_To_GNAT_Time;
1809 function Program_Name (Nam : String) return String_Access is
1810 Res : String_Access;
1813 -- Get the name of the current program being executed
1817 -- Find the target prefix if any, for the cross compilation case
1818 -- for instance in "alpha-dec-vxworks-gcc" the target prefix is
1819 -- "alpha-dec-vxworks-"
1821 while Name_Len > 0 loop
1823 -- All done if we find the last hyphen
1825 if Name_Buffer (Name_Len) = '-' then
1828 -- If directory separator found, we don't want to look further
1829 -- since in this case, no prefix has been found.
1831 elsif Is_Directory_Separator (Name_Buffer (Name_Len)) then
1836 Name_Len := Name_Len - 1;
1839 -- Create the new program name
1841 Res := new String (1 .. Name_Len + Nam'Length);
1842 Res.all (1 .. Name_Len) := Name_Buffer (1 .. Name_Len);
1843 Res.all (Name_Len + 1 .. Name_Len + Nam'Length) := Nam;
1847 ------------------------------
1848 -- Read_Default_Search_Dirs --
1849 ------------------------------
1851 function Read_Default_Search_Dirs
1852 (Search_Dir_Prefix : String_Access;
1853 Search_File : String_Access;
1854 Search_Dir_Default_Name : String_Access) return String_Access
1856 Prefix_Len : constant Integer := Search_Dir_Prefix.all'Length;
1857 Buffer : String (1 .. Prefix_Len + Search_File.all'Length + 1);
1858 File_FD : File_Descriptor;
1859 S, S1 : String_Access;
1862 Actual_Len : Integer;
1865 Prev_Was_Separator : Boolean;
1866 Nb_Relative_Dir : Integer;
1868 function Is_Relative (S : String; K : Positive) return Boolean;
1869 pragma Inline (Is_Relative);
1870 -- Returns True if a relative directory specification is found
1871 -- in S at position K, False otherwise.
1877 function Is_Relative (S : String; K : Positive) return Boolean is
1879 return not Is_Absolute_Path (S (K .. S'Last));
1882 -- Start of processing for Read_Default_Search_Dirs
1885 -- Construct a C compatible character string buffer
1887 Buffer (1 .. Search_Dir_Prefix.all'Length)
1888 := Search_Dir_Prefix.all;
1889 Buffer (Search_Dir_Prefix.all'Length + 1 .. Buffer'Last - 1)
1891 Buffer (Buffer'Last) := ASCII.NUL;
1893 File_FD := Open_Read (Buffer'Address, Binary);
1894 if File_FD = Invalid_FD then
1895 return Search_Dir_Default_Name;
1898 Len := Integer (File_Length (File_FD));
1900 -- An extra character for a trailing Path_Separator is allocated
1902 S := new String (1 .. Len + 1);
1903 S (Len + 1) := Path_Separator;
1905 -- Read the file. Note that the loop is not necessary since the
1906 -- whole file is read at once except on VMS.
1910 while Actual_Len /= 0 loop
1911 Actual_Len := Read (File_FD, S (Curr)'Address, Len);
1912 Curr := Curr + Actual_Len;
1915 -- Process the file, translating line and file ending
1916 -- control characters to a path separator character.
1918 Prev_Was_Separator := True;
1919 Nb_Relative_Dir := 0;
1920 for J in 1 .. Len loop
1921 if S (J) in ASCII.NUL .. ASCII.US
1924 S (J) := Path_Separator;
1927 if S (J) = Path_Separator then
1928 Prev_Was_Separator := True;
1930 if Prev_Was_Separator and then Is_Relative (S.all, J) then
1931 Nb_Relative_Dir := Nb_Relative_Dir + 1;
1934 Prev_Was_Separator := False;
1938 if Nb_Relative_Dir = 0 then
1942 -- Add the Search_Dir_Prefix to all relative paths
1944 S1 := new String (1 .. S'Length + Nb_Relative_Dir * Prefix_Len);
1946 Prev_Was_Separator := True;
1947 for J in 1 .. Len + 1 loop
1948 if S (J) = Path_Separator then
1949 Prev_Was_Separator := True;
1952 if Prev_Was_Separator and then Is_Relative (S.all, J) then
1953 S1 (J1 .. J1 + Prefix_Len - 1) := Search_Dir_Prefix.all;
1954 J1 := J1 + Prefix_Len;
1957 Prev_Was_Separator := False;
1965 end Read_Default_Search_Dirs;
1967 -----------------------
1968 -- Read_Library_Info --
1969 -----------------------
1971 function Read_Library_Info
1972 (Lib_File : File_Name_Type;
1973 Fatal_Err : Boolean := False) return Text_Buffer_Ptr
1975 Lib_FD : File_Descriptor;
1976 -- The file descriptor for the current library file. A negative value
1977 -- indicates failure to open the specified source file.
1979 Text : Text_Buffer_Ptr;
1980 -- Allocated text buffer
1983 -- For the calls to Close
1986 Current_Full_Lib_Name := Find_File (Lib_File, Library);
1987 Current_Full_Obj_Name := Object_File_Name (Current_Full_Lib_Name);
1989 if Current_Full_Lib_Name = No_File then
1991 Fail ("Cannot find: ", Name_Buffer (1 .. Name_Len));
1993 Current_Full_Obj_Stamp := Empty_Time_Stamp;
1998 Get_Name_String (Current_Full_Lib_Name);
1999 Name_Buffer (Name_Len + 1) := ASCII.NUL;
2001 -- Open the library FD, note that we open in binary mode, because as
2002 -- documented in the spec, the caller is expected to handle either
2003 -- DOS or Unix mode files, and there is no point in wasting time on
2004 -- text translation when it is not required.
2006 Lib_FD := Open_Read (Name_Buffer'Address, Binary);
2008 if Lib_FD = Invalid_FD then
2010 Fail ("Cannot open: ", Name_Buffer (1 .. Name_Len));
2012 Current_Full_Obj_Stamp := Empty_Time_Stamp;
2017 -- Check for object file consistency if requested
2019 if Opt.Check_Object_Consistency then
2020 Current_Full_Lib_Stamp := File_Stamp (Current_Full_Lib_Name);
2021 Current_Full_Obj_Stamp := File_Stamp (Current_Full_Obj_Name);
2023 if Current_Full_Obj_Stamp (1) = ' ' then
2025 -- When the library is readonly, always assume that
2026 -- the object is consistent.
2028 if Is_Readonly_Library (Current_Full_Lib_Name) then
2029 Current_Full_Obj_Stamp := Current_Full_Lib_Stamp;
2031 elsif Fatal_Err then
2032 Get_Name_String (Current_Full_Obj_Name);
2033 Close (Lib_FD, Status);
2034 -- No need to check the status, we fail anyway
2036 Fail ("Cannot find: ", Name_Buffer (1 .. Name_Len));
2039 Current_Full_Obj_Stamp := Empty_Time_Stamp;
2040 Close (Lib_FD, Status);
2042 -- No need to check the status, we return null anyway
2049 -- Read data from the file
2052 Len : constant Integer := Integer (File_Length (Lib_FD));
2053 -- Length of source file text. If it doesn't fit in an integer
2054 -- we're probably stuck anyway (>2 gigs of source seems a lot!)
2056 Actual_Len : Integer := 0;
2058 Lo : constant Text_Ptr := 0;
2059 -- Low bound for allocated text buffer
2061 Hi : Text_Ptr := Text_Ptr (Len);
2062 -- High bound for allocated text buffer. Note length is Len + 1
2063 -- which allows for extra EOF character at the end of the buffer.
2066 -- Allocate text buffer. Note extra character at end for EOF
2068 Text := new Text_Buffer (Lo .. Hi);
2070 -- Some systems (e.g. VMS) have file types that require one
2071 -- read per line, so read until we get the Len bytes or until
2072 -- there are no more characters.
2076 Actual_Len := Read (Lib_FD, Text (Hi)'Address, Len);
2077 Hi := Hi + Text_Ptr (Actual_Len);
2078 exit when Actual_Len = Len or Actual_Len <= 0;
2084 -- Read is complete, close file and we are done
2086 Close (Lib_FD, Status);
2087 -- The status should never be False. But, if it is, what can we do?
2088 -- So, we don't test it.
2092 end Read_Library_Info;
2094 ----------------------
2095 -- Read_Source_File --
2096 ----------------------
2098 procedure Read_Source_File
2099 (N : File_Name_Type;
2101 Hi : out Source_Ptr;
2102 Src : out Source_Buffer_Ptr;
2103 T : File_Type := Source)
2105 Source_File_FD : File_Descriptor;
2106 -- The file descriptor for the current source file. A negative value
2107 -- indicates failure to open the specified source file.
2110 -- Length of file. Assume no more than 2 gigabytes of source!
2112 Actual_Len : Integer;
2115 -- For the call to Close
2118 Current_Full_Source_Name := Find_File (N, T);
2119 Current_Full_Source_Stamp := File_Stamp (Current_Full_Source_Name);
2121 if Current_Full_Source_Name = No_File then
2123 -- If we were trying to access the main file and we could not
2124 -- find it we have an error.
2126 if N = Current_Main then
2127 Get_Name_String (N);
2128 Fail ("Cannot find: ", Name_Buffer (1 .. Name_Len));
2136 Get_Name_String (Current_Full_Source_Name);
2137 Name_Buffer (Name_Len + 1) := ASCII.NUL;
2139 -- Open the source FD, note that we open in binary mode, because as
2140 -- documented in the spec, the caller is expected to handle either
2141 -- DOS or Unix mode files, and there is no point in wasting time on
2142 -- text translation when it is not required.
2144 Source_File_FD := Open_Read (Name_Buffer'Address, Binary);
2146 if Source_File_FD = Invalid_FD then
2152 -- Prepare to read data from the file
2154 Len := Integer (File_Length (Source_File_FD));
2156 -- Set Hi so that length is one more than the physical length,
2157 -- allowing for the extra EOF character at the end of the buffer
2159 Hi := Lo + Source_Ptr (Len);
2161 -- Do the actual read operation
2164 subtype Actual_Source_Buffer is Source_Buffer (Lo .. Hi);
2165 -- Physical buffer allocated
2167 type Actual_Source_Ptr is access Actual_Source_Buffer;
2168 -- This is the pointer type for the physical buffer allocated
2170 Actual_Ptr : constant Actual_Source_Ptr := new Actual_Source_Buffer;
2171 -- And this is the actual physical buffer
2174 -- Allocate source buffer, allowing extra character at end for EOF
2176 -- Some systems (e.g. VMS) have file types that require one
2177 -- read per line, so read until we get the Len bytes or until
2178 -- there are no more characters.
2182 Actual_Len := Read (Source_File_FD, Actual_Ptr (Hi)'Address, Len);
2183 Hi := Hi + Source_Ptr (Actual_Len);
2184 exit when Actual_Len = Len or Actual_Len <= 0;
2187 Actual_Ptr (Hi) := EOF;
2189 -- Now we need to work out the proper virtual origin pointer to
2190 -- return. This is exactly Actual_Ptr (0)'Address, but we have
2191 -- to be careful to suppress checks to compute this address.
2194 pragma Suppress (All_Checks);
2196 pragma Warnings (Off);
2197 -- This use of unchecked conversion is aliasing safe
2199 function To_Source_Buffer_Ptr is new
2200 Unchecked_Conversion (Address, Source_Buffer_Ptr);
2202 pragma Warnings (On);
2205 Src := To_Source_Buffer_Ptr (Actual_Ptr (0)'Address);
2209 -- Read is complete, get time stamp and close file and we are done
2211 Close (Source_File_FD, Status);
2213 -- The status should never be False. But, if it is, what can we do?
2214 -- So, we don't test it.
2216 end Read_Source_File;
2222 function Relocate_Path
2224 Path : String) return String_Ptr
2228 procedure set_std_prefix (S : String; Len : Integer);
2229 pragma Import (C, set_std_prefix);
2232 if Std_Prefix = null then
2233 Std_Prefix := Executable_Prefix;
2235 if Std_Prefix.all /= "" then
2237 -- Remove trailing directory separator when calling set_std_prefix
2239 set_std_prefix (Std_Prefix.all, Std_Prefix'Length - 1);
2243 if Path (Prefix'Range) = Prefix then
2244 if Std_Prefix.all /= "" then
2246 (1 .. Std_Prefix'Length + Path'Last - Prefix'Last);
2247 S (1 .. Std_Prefix'Length) := Std_Prefix.all;
2248 S (Std_Prefix'Length + 1 .. S'Last) :=
2249 Path (Prefix'Last + 1 .. Path'Last);
2254 return new String'(Path);
2261 procedure Set_Program (P : Program_Type) is
2264 Fail ("Set_Program called twice");
2267 Program_Set := True;
2268 Running_Program := P;
2275 function Shared_Lib (Name : String) return String is
2276 Library : String (1 .. Name'Length + Library_Version'Length + 3);
2277 -- 3 = 2 for "-l" + 1 for "-" before lib version
2280 Library (1 .. 2) := "-l";
2281 Library (3 .. 2 + Name'Length) := Name;
2282 Library (3 + Name'Length) := '-';
2283 Library (4 + Name'Length .. Library'Last) := Library_Version;
2285 if Hostparm.OpenVMS then
2286 for K in Library'First + 2 .. Library'Last loop
2287 if Library (K) = '.' or else Library (K) = '-' then
2296 ----------------------
2297 -- Smart_File_Stamp --
2298 ----------------------
2300 function Smart_File_Stamp
2301 (N : File_Name_Type;
2302 T : File_Type) return Time_Stamp_Type
2304 Time_Stamp : Time_Stamp_Type;
2307 if not File_Cache_Enabled then
2308 return File_Stamp (Find_File (N, T));
2311 Time_Stamp := File_Stamp_Hash_Table.Get (N);
2313 if Time_Stamp (1) = ' ' then
2314 Time_Stamp := File_Stamp (Smart_Find_File (N, T));
2315 File_Stamp_Hash_Table.Set (N, Time_Stamp);
2319 end Smart_File_Stamp;
2321 ---------------------
2322 -- Smart_Find_File --
2323 ---------------------
2325 function Smart_Find_File
2326 (N : File_Name_Type;
2327 T : File_Type) return File_Name_Type
2329 Full_File_Name : File_Name_Type;
2332 if not File_Cache_Enabled then
2333 return Find_File (N, T);
2336 Full_File_Name := File_Name_Hash_Table.Get (N);
2338 if Full_File_Name = No_File then
2339 Full_File_Name := Find_File (N, T);
2340 File_Name_Hash_Table.Set (N, Full_File_Name);
2343 return Full_File_Name;
2344 end Smart_Find_File;
2346 ----------------------
2347 -- Source_File_Data --
2348 ----------------------
2350 procedure Source_File_Data (Cache : Boolean) is
2352 File_Cache_Enabled := Cache;
2353 end Source_File_Data;
2355 -----------------------
2356 -- Source_File_Stamp --
2357 -----------------------
2359 function Source_File_Stamp (N : File_Name_Type) return Time_Stamp_Type is
2361 return Smart_File_Stamp (N, Source);
2362 end Source_File_Stamp;
2364 ---------------------
2365 -- Strip_Directory --
2366 ---------------------
2368 function Strip_Directory (Name : File_Name_Type) return File_Name_Type is
2370 Get_Name_String (Name);
2372 for J in reverse 1 .. Name_Len - 1 loop
2374 -- If we find the last directory separator
2376 if Is_Directory_Separator (Name_Buffer (J)) then
2378 -- Return the part of Name that follows this last directory
2381 Name_Buffer (1 .. Name_Len - J) := Name_Buffer (J + 1 .. Name_Len);
2382 Name_Len := Name_Len - J;
2387 -- There were no directory separator, just return Name
2390 end Strip_Directory;
2396 function Strip_Suffix (Name : File_Name_Type) return File_Name_Type is
2398 Get_Name_String (Name);
2400 for J in reverse 2 .. Name_Len loop
2402 -- If we found the last '.', return part of Name that precedes it
2404 if Name_Buffer (J) = '.' then
2413 ---------------------------
2414 -- To_Canonical_Dir_Spec --
2415 ---------------------------
2417 function To_Canonical_Dir_Spec
2419 Prefix_Style : Boolean) return String_Access
2421 function To_Canonical_Dir_Spec
2422 (Host_Dir : Address;
2423 Prefix_Flag : Integer) return Address;
2424 pragma Import (C, To_Canonical_Dir_Spec, "__gnat_to_canonical_dir_spec");
2426 C_Host_Dir : String (1 .. Host_Dir'Length + 1);
2427 Canonical_Dir_Addr : Address;
2428 Canonical_Dir_Len : Integer;
2431 C_Host_Dir (1 .. Host_Dir'Length) := Host_Dir;
2432 C_Host_Dir (C_Host_Dir'Last) := ASCII.NUL;
2434 if Prefix_Style then
2435 Canonical_Dir_Addr := To_Canonical_Dir_Spec (C_Host_Dir'Address, 1);
2437 Canonical_Dir_Addr := To_Canonical_Dir_Spec (C_Host_Dir'Address, 0);
2439 Canonical_Dir_Len := C_String_Length (Canonical_Dir_Addr);
2441 if Canonical_Dir_Len = 0 then
2444 return To_Path_String_Access (Canonical_Dir_Addr, Canonical_Dir_Len);
2449 Fail ("erroneous directory spec: ", Host_Dir);
2451 end To_Canonical_Dir_Spec;
2453 ---------------------------
2454 -- To_Canonical_File_List --
2455 ---------------------------
2457 function To_Canonical_File_List
2458 (Wildcard_Host_File : String;
2459 Only_Dirs : Boolean) return String_Access_List_Access
2461 function To_Canonical_File_List_Init
2462 (Host_File : Address;
2463 Only_Dirs : Integer) return Integer;
2464 pragma Import (C, To_Canonical_File_List_Init,
2465 "__gnat_to_canonical_file_list_init");
2467 function To_Canonical_File_List_Next return Address;
2468 pragma Import (C, To_Canonical_File_List_Next,
2469 "__gnat_to_canonical_file_list_next");
2471 procedure To_Canonical_File_List_Free;
2472 pragma Import (C, To_Canonical_File_List_Free,
2473 "__gnat_to_canonical_file_list_free");
2475 Num_Files : Integer;
2476 C_Wildcard_Host_File : String (1 .. Wildcard_Host_File'Length + 1);
2479 C_Wildcard_Host_File (1 .. Wildcard_Host_File'Length) :=
2481 C_Wildcard_Host_File (C_Wildcard_Host_File'Last) := ASCII.NUL;
2483 -- Do the expansion and say how many there are
2485 Num_Files := To_Canonical_File_List_Init
2486 (C_Wildcard_Host_File'Address, Boolean'Pos (Only_Dirs));
2489 Canonical_File_List : String_Access_List (1 .. Num_Files);
2490 Canonical_File_Addr : Address;
2491 Canonical_File_Len : Integer;
2494 -- Retrieve the expanded directoy names and build the list
2496 for J in 1 .. Num_Files loop
2497 Canonical_File_Addr := To_Canonical_File_List_Next;
2498 Canonical_File_Len := C_String_Length (Canonical_File_Addr);
2499 Canonical_File_List (J) := To_Path_String_Access
2500 (Canonical_File_Addr, Canonical_File_Len);
2503 -- Free up the storage
2505 To_Canonical_File_List_Free;
2507 return new String_Access_List'(Canonical_File_List);
2509 end To_Canonical_File_List;
2511 ----------------------------
2512 -- To_Canonical_File_Spec --
2513 ----------------------------
2515 function To_Canonical_File_Spec
2516 (Host_File : String) return String_Access
2518 function To_Canonical_File_Spec (Host_File : Address) return Address;
2520 (C, To_Canonical_File_Spec, "__gnat_to_canonical_file_spec");
2522 C_Host_File : String (1 .. Host_File'Length + 1);
2523 Canonical_File_Addr : Address;
2524 Canonical_File_Len : Integer;
2527 C_Host_File (1 .. Host_File'Length) := Host_File;
2528 C_Host_File (C_Host_File'Last) := ASCII.NUL;
2530 Canonical_File_Addr := To_Canonical_File_Spec (C_Host_File'Address);
2531 Canonical_File_Len := C_String_Length (Canonical_File_Addr);
2533 if Canonical_File_Len = 0 then
2536 return To_Path_String_Access
2537 (Canonical_File_Addr, Canonical_File_Len);
2542 Fail ("erroneous file spec: ", Host_File);
2544 end To_Canonical_File_Spec;
2546 ----------------------------
2547 -- To_Canonical_Path_Spec --
2548 ----------------------------
2550 function To_Canonical_Path_Spec
2551 (Host_Path : String) return String_Access
2553 function To_Canonical_Path_Spec (Host_Path : Address) return Address;
2555 (C, To_Canonical_Path_Spec, "__gnat_to_canonical_path_spec");
2557 C_Host_Path : String (1 .. Host_Path'Length + 1);
2558 Canonical_Path_Addr : Address;
2559 Canonical_Path_Len : Integer;
2562 C_Host_Path (1 .. Host_Path'Length) := Host_Path;
2563 C_Host_Path (C_Host_Path'Last) := ASCII.NUL;
2565 Canonical_Path_Addr := To_Canonical_Path_Spec (C_Host_Path'Address);
2566 Canonical_Path_Len := C_String_Length (Canonical_Path_Addr);
2568 -- Return a null string (vice a null) for zero length paths, for
2569 -- compatibility with getenv().
2571 return To_Path_String_Access (Canonical_Path_Addr, Canonical_Path_Len);
2575 Fail ("erroneous path spec: ", Host_Path);
2577 end To_Canonical_Path_Spec;
2579 ---------------------------
2580 -- To_Host_Dir_Spec --
2581 ---------------------------
2583 function To_Host_Dir_Spec
2584 (Canonical_Dir : String;
2585 Prefix_Style : Boolean) return String_Access
2587 function To_Host_Dir_Spec
2588 (Canonical_Dir : Address;
2589 Prefix_Flag : Integer) return Address;
2590 pragma Import (C, To_Host_Dir_Spec, "__gnat_to_host_dir_spec");
2592 C_Canonical_Dir : String (1 .. Canonical_Dir'Length + 1);
2593 Host_Dir_Addr : Address;
2594 Host_Dir_Len : Integer;
2597 C_Canonical_Dir (1 .. Canonical_Dir'Length) := Canonical_Dir;
2598 C_Canonical_Dir (C_Canonical_Dir'Last) := ASCII.NUL;
2600 if Prefix_Style then
2601 Host_Dir_Addr := To_Host_Dir_Spec (C_Canonical_Dir'Address, 1);
2603 Host_Dir_Addr := To_Host_Dir_Spec (C_Canonical_Dir'Address, 0);
2605 Host_Dir_Len := C_String_Length (Host_Dir_Addr);
2607 if Host_Dir_Len = 0 then
2610 return To_Path_String_Access (Host_Dir_Addr, Host_Dir_Len);
2612 end To_Host_Dir_Spec;
2614 ----------------------------
2615 -- To_Host_File_Spec --
2616 ----------------------------
2618 function To_Host_File_Spec
2619 (Canonical_File : String) return String_Access
2621 function To_Host_File_Spec (Canonical_File : Address) return Address;
2622 pragma Import (C, To_Host_File_Spec, "__gnat_to_host_file_spec");
2624 C_Canonical_File : String (1 .. Canonical_File'Length + 1);
2625 Host_File_Addr : Address;
2626 Host_File_Len : Integer;
2629 C_Canonical_File (1 .. Canonical_File'Length) := Canonical_File;
2630 C_Canonical_File (C_Canonical_File'Last) := ASCII.NUL;
2632 Host_File_Addr := To_Host_File_Spec (C_Canonical_File'Address);
2633 Host_File_Len := C_String_Length (Host_File_Addr);
2635 if Host_File_Len = 0 then
2638 return To_Path_String_Access
2639 (Host_File_Addr, Host_File_Len);
2641 end To_Host_File_Spec;
2643 ---------------------------
2644 -- To_Path_String_Access --
2645 ---------------------------
2647 function To_Path_String_Access
2648 (Path_Addr : Address;
2649 Path_Len : Integer) return String_Access
2651 subtype Path_String is String (1 .. Path_Len);
2652 type Path_String_Access is access Path_String;
2654 function Address_To_Access is new
2655 Unchecked_Conversion (Source => Address,
2656 Target => Path_String_Access);
2658 Path_Access : constant Path_String_Access :=
2659 Address_To_Access (Path_Addr);
2661 Return_Val : String_Access;
2664 Return_Val := new String (1 .. Path_Len);
2666 for J in 1 .. Path_Len loop
2667 Return_Val (J) := Path_Access (J);
2671 end To_Path_String_Access;
2677 function Update_Path (Path : String_Ptr) return String_Ptr is
2679 function C_Update_Path (Path, Component : Address) return Address;
2680 pragma Import (C, C_Update_Path, "update_path");
2682 function Strlen (Str : Address) return Integer;
2683 pragma Import (C, Strlen, "strlen");
2685 procedure Strncpy (X : Address; Y : Address; Length : Integer);
2686 pragma Import (C, Strncpy, "strncpy");
2688 In_Length : constant Integer := Path'Length;
2689 In_String : String (1 .. In_Length + 1);
2690 Component_Name : aliased String := "GCC" & ASCII.NUL;
2691 Result_Ptr : Address;
2692 Result_Length : Integer;
2693 Out_String : String_Ptr;
2696 In_String (1 .. In_Length) := Path.all;
2697 In_String (In_Length + 1) := ASCII.NUL;
2698 Result_Ptr := C_Update_Path (In_String'Address,
2699 Component_Name'Address);
2700 Result_Length := Strlen (Result_Ptr);
2702 Out_String := new String (1 .. Result_Length);
2703 Strncpy (Out_String.all'Address, Result_Ptr, Result_Length);
2711 procedure Write_Info (Info : String) is
2713 Write_With_Check (Info'Address, Info'Length);
2714 Write_With_Check (EOL'Address, 1);
2717 ------------------------
2718 -- Write_Program_Name --
2719 ------------------------
2721 procedure Write_Program_Name is
2722 Save_Buffer : constant String (1 .. Name_Len) :=
2723 Name_Buffer (1 .. Name_Len);
2728 -- Convert the name to lower case so error messages are the same on
2731 for J in 1 .. Name_Len loop
2732 if Name_Buffer (J) in 'A' .. 'Z' then
2734 Character'Val (Character'Pos (Name_Buffer (J)) + 32);
2738 Write_Str (Name_Buffer (1 .. Name_Len));
2740 -- Restore Name_Buffer which was clobbered by the call to
2741 -- Find_Program_Name
2743 Name_Len := Save_Buffer'Last;
2744 Name_Buffer (1 .. Name_Len) := Save_Buffer;
2745 end Write_Program_Name;
2747 ----------------------
2748 -- Write_With_Check --
2749 ----------------------
2751 procedure Write_With_Check (A : Address; N : Integer) is
2755 if N = Write (Output_FD, A, N) then
2759 Write_Str ("error: disk full writing ");
2760 Write_Name_Decoded (Output_File_Name);
2762 Name_Len := Name_Len + 1;
2763 Name_Buffer (Name_Len) := ASCII.NUL;
2764 Delete_File (Name_Buffer'Address, Ignore);
2765 Exit_Program (E_Fatal);
2767 end Write_With_Check;
2769 ----------------------------
2770 -- Package Initialization --
2771 ----------------------------
2774 Initialization : declare
2776 function Get_Default_Identifier_Character_Set return Character;
2777 pragma Import (C, Get_Default_Identifier_Character_Set,
2778 "__gnat_get_default_identifier_character_set");
2779 -- Function to determine the default identifier character set,
2780 -- which is system dependent. See Opt package spec for a list of
2781 -- the possible character codes and their interpretations.
2783 function Get_Maximum_File_Name_Length return Int;
2784 pragma Import (C, Get_Maximum_File_Name_Length,
2785 "__gnat_get_maximum_file_name_length");
2786 -- Function to get maximum file name length for system
2789 Identifier_Character_Set := Get_Default_Identifier_Character_Set;
2790 Maximum_File_Name_Length := Get_Maximum_File_Name_Length;
2792 -- On VMS, '~' is not allowed in file names. Change the multi unit
2793 -- index character to '$'.
2795 if Hostparm.OpenVMS then
2796 Multi_Unit_Index_Character := '$';
2799 -- Following should be removed by having above function return
2800 -- Integer'Last as indication of no maximum instead of -1 ???
2802 if Maximum_File_Name_Length = -1 then
2803 Maximum_File_Name_Length := Int'Last;
2806 Src_Search_Directories.Set_Last (Primary_Directory);
2807 Src_Search_Directories.Table (Primary_Directory) := new String'("");
2809 Lib_Search_Directories.Set_Last (Primary_Directory);
2810 Lib_Search_Directories.Table (Primary_Directory) := new String'("");