1 ------------------------------------------------------------------------------
3 -- GNAT COMPILER COMPONENTS --
9 -- Copyright (C) 1992-2004 Free Software Foundation, Inc. --
11 -- GNAT is free software; you can redistribute it and/or modify it under --
12 -- terms of the GNU General Public License as published by the Free Soft- --
13 -- ware Foundation; either version 2, or (at your option) any later ver- --
14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
16 -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
17 -- for more details. You should have received a copy of the GNU General --
18 -- Public License distributed with GNAT; see file COPYING. If not, write --
19 -- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
20 -- MA 02111-1307, USA. --
22 -- GNAT was originally developed by the GNAT team at New York University. --
23 -- Extensive contributions were provided by Ada Core Technologies Inc. --
25 ------------------------------------------------------------------------------
27 -- This package contains the low level, operating system routines used in
28 -- the GNAT compiler and binder for command line processing and file input
31 with GNAT.OS_Lib; use GNAT.OS_Lib;
32 with System; use System;
33 with Types; use Types;
35 pragma Elaborate (GNAT.OS_Lib);
39 Multi_Unit_Index_Character : Character := '~';
40 -- The character before the index of the unit in a multi-unit source,
41 -- in ALI and object file names. This is not a constant, because it is
42 -- changed to '$' on VMS.
44 Ada_Include_Path : constant String := "ADA_INCLUDE_PATH";
45 Ada_Objects_Path : constant String := "ADA_OBJECTS_PATH";
46 Project_Include_Path_File : constant String := "ADA_PRJ_INCLUDE_FILE";
47 Project_Objects_Path_File : constant String := "ADA_PRJ_OBJECTS_FILE";
50 -- Initialize internal tables
52 function Normalize_Directory_Name (Directory : String) return String_Ptr;
53 -- Verify and normalize a directory name. If directory name is invalid,
54 -- this will return an empty string. Otherwise it will insure a trailing
55 -- slash and make other normalizations.
57 type File_Type is (Source, Library, Config, Definition, Preprocessing_Data);
61 T : File_Type) return File_Name_Type;
62 -- Finds a source, library or config file depending on the value
63 -- of T following the directory search order rules unless N is the
64 -- name of the file just read with Next_Main_File and already
65 -- contains directiory information, in which case just look in the
66 -- Primary_Directory. Returns File_Name_Type of the full file name
67 -- if found, No_File if file not found. Note that for the special
68 -- case of gnat.adc, only the compilation environment directory is
69 -- searched, i.e. the directory where the ali and object files are
70 -- written. Another special case is when Debug_Generated_Code is
71 -- set and the file name ends on ".dg", in which case we look for
72 -- the generated file only in the current directory, since that is
73 -- where it is always built.
75 function Get_File_Names_Case_Sensitive return Int;
76 pragma Import (C, Get_File_Names_Case_Sensitive,
77 "__gnat_get_file_names_case_sensitive");
78 File_Names_Case_Sensitive : constant Boolean :=
79 Get_File_Names_Case_Sensitive /= 0;
80 -- Set to indicate whether the operating system convention is for file
81 -- names to be case sensitive (e.g., in Unix, set True), or non case
82 -- sensitive (e.g., in OS/2, set False).
84 procedure Canonical_Case_File_Name (S : in out String);
85 -- Given a file name, converts it to canonical case form. For systems
86 -- where file names are case sensitive, this procedure has no effect.
87 -- If file names are not case sensitive (i.e. for example if you have
88 -- the file "xyz.adb", you can refer to it as XYZ.adb or XyZ.AdB), then
89 -- this call converts the given string to canonical all lower case form,
90 -- so that two file names compare equal if they refer to the same file.
92 function Number_Of_Files return Int;
93 -- gives the total number of filenames found on the command line.
95 procedure Add_File (File_Name : String);
96 -- Called by the subprogram processing the command line for each
99 procedure Find_Program_Name;
100 -- Put simple name of current program being run (excluding the directory
101 -- path) in Name_Buffer, with the length in Name_Len.
103 function Program_Name (Nam : String) return String_Access;
104 -- In the native compilation case, Create a string containing Nam. In
105 -- the cross compilation case, looks at the prefix of the current
106 -- program being run and prepend it to Nam. For instance if the program
107 -- being run is <target>-gnatmake and Nam is "gcc", the returned value
108 -- will be a pointer to "<target>-gcc". This function clobbers
109 -- Name_Buffer and Name_Len.
111 procedure Write_Program_Name;
112 -- Writes name of program as invoked to the current output
113 -- (normally standard output).
115 procedure Fail (S1 : String; S2 : String := ""; S3 : String := "");
116 pragma No_Return (Fail);
117 -- Outputs error messages S1 & S2 & S3 preceded by the name of the
118 -- executing program and exits with E_Fatal. The output goes to
119 -- standard error, except if special output is in effect (see Output).
121 function Is_Directory_Separator (C : Character) return Boolean;
122 -- Returns True if C is a directory separator
124 function Get_Directory (Name : File_Name_Type) return File_Name_Type;
125 -- Get the prefix directory name (if any) from Name. The last separator
126 -- is preserved. Return the normalized current directory if there is no
127 -- directory part in the name.
129 function Is_Readonly_Library (File : File_Name_Type) return Boolean;
130 -- Check if this library file is a read-only file.
132 function Strip_Directory (Name : File_Name_Type) return File_Name_Type;
133 -- Strips the prefix directory name (if any) from Name. Returns the
134 -- stripped name. Name cannot end with a directory separator.
136 function Strip_Suffix (Name : File_Name_Type) return File_Name_Type;
137 -- Strips the suffix (the last '.' and whatever comes after it) from Name.
138 -- Returns the stripped name.
140 function Executable_Name (Name : File_Name_Type) return File_Name_Type;
141 -- Given a file name it adds the appropriate suffix at the end so that
142 -- it becomes the name of the executable on the system at end. For
143 -- instance under DOS it adds the ".exe" suffix, whereas under UNIX no
146 function File_Stamp (Name : File_Name_Type) return Time_Stamp_Type;
147 -- Returns the time stamp of file Name. Name should include relative
148 -- path information in order to locate it. If the source file cannot be
149 -- opened, or Name = No_File, and all blank time stamp is returned (this is
150 -- not an error situation).
152 type String_Access_List is array (Positive range <>) of String_Access;
153 -- Deferenced type used to return a list of file specs in
154 -- To_Canonical_File_List.
156 type String_Access_List_Access is access all String_Access_List;
157 -- Type used to return a String_Access_List without dragging in secondary
160 function To_Canonical_File_List
161 (Wildcard_Host_File : String;
162 Only_Dirs : Boolean) return String_Access_List_Access;
163 -- Expand a wildcard host syntax file or directory specification (e.g. on
164 -- a VMS host, any file or directory spec that contains:
165 -- "*", or "%", or "...")
166 -- and return a list of valid Unix syntax file or directory specs.
167 -- If Only_Dirs is True, then only return directories.
169 function To_Canonical_Dir_Spec
171 Prefix_Style : Boolean) return String_Access;
172 -- Convert a host syntax directory specification (e.g. on a VMS host:
173 -- "SYS$DEVICE:[DIR]") to canonical (Unix) syntax (e.g. "/sys$device/dir").
174 -- If Prefix_Style then make it a valid file specification prefix.
175 -- A file specification prefix is a directory specification that
176 -- can be appended with a simple file specification to yield a valid
177 -- absolute or relative path to a file. On a conversion to Unix syntax
178 -- this simply means the spec has a trailing slash ("/").
180 function To_Canonical_File_Spec
181 (Host_File : String) return String_Access;
182 -- Convert a host syntax file specification (e.g. on a VMS host:
183 -- "SYS$DEVICE:[DIR]FILE.EXT;69 to canonical (Unix) syntax (e.g.
184 -- "/sys$device/dir/file.ext.69").
186 function To_Canonical_Path_Spec
187 (Host_Path : String) return String_Access;
188 -- Convert a host syntax Path specification (e.g. on a VMS host:
189 -- "SYS$DEVICE:[BAR],DISK$USER:[FOO] to canonical (Unix) syntax (e.g.
190 -- "/sys$device/foo:disk$user/foo").
192 function To_Host_Dir_Spec
193 (Canonical_Dir : String;
194 Prefix_Style : Boolean) return String_Access;
195 -- Convert a canonical syntax directory specification to host syntax.
196 -- The Prefix_Style flag is currently ignored but should be set to
199 function To_Host_File_Spec
200 (Canonical_File : String) return String_Access;
201 -- Convert a canonical syntax file specification to host syntax.
203 function Relocate_Path
205 Path : String) return String_Ptr;
206 -- Given an absolute path and a prefix, if Path starts with Prefix,
207 -- replace the Prefix substring with the root installation directory.
208 -- By default, try to compute the root installation directory by looking
209 -- at the executable name as it was typed on the command line and, if
210 -- needed, use the PATH environment variable. If the above computation
211 -- fails, return Path. This function assumes Prefix'First = Path'First.
213 function Shared_Lib (Name : String) return String;
214 -- Returns the runtime shared library in the form -l<name>-<version> where
215 -- version is the GNAT runtime library option for the platform. For example
216 -- this routine called with Name set to "gnat" will return "-lgnat-5.02"
217 -- on UNIX and Windows and -lgnat_5_02 on VMS.
219 -------------------------
220 -- Search Dir Routines --
221 -------------------------
223 function Include_Dir_Default_Prefix return String;
224 -- Return the directory of the run-time library sources, as modified
227 function Object_Dir_Default_Prefix return String;
228 -- Return the directory of the run-time library ALI and object files, as
229 -- modified by update_path.
231 procedure Add_Default_Search_Dirs;
232 -- This routine adds the default search dirs indicated by the
233 -- environment variables and sdefault package.
235 procedure Add_Lib_Search_Dir (Dir : String);
236 -- Add Dir at the end of the library file search path
238 procedure Add_Src_Search_Dir (Dir : String);
239 -- Add Dir at the end of the source file search path
241 procedure Get_Next_Dir_In_Path_Init
242 (Search_Path : String_Access);
243 function Get_Next_Dir_In_Path
244 (Search_Path : String_Access) return String_Access;
245 -- These subprograms are used to parse out the directory names in a
246 -- search path specified by a Search_Path argument. The procedure
247 -- initializes an internal pointer to point to the initial directory
248 -- name, and calls to the function return successive directory names,
249 -- with a null pointer marking the end of the list.
251 type Search_File_Type is (Include, Objects);
253 procedure Add_Search_Dirs
254 (Search_Path : String_Ptr;
255 Path_Type : Search_File_Type);
256 -- These procedure adds all the search directories that are in Search_Path
257 -- in the proper file search path (library or source)
259 function Get_Primary_Src_Search_Directory return String_Ptr;
260 -- Retrieved the primary directory (directory containing the main source
261 -- file for Gnatmake.
263 function Nb_Dir_In_Src_Search_Path return Natural;
264 function Dir_In_Src_Search_Path (Position : Natural) return String_Ptr;
265 -- Functions to access the directory names in the source search path
267 function Nb_Dir_In_Obj_Search_Path return Natural;
268 function Dir_In_Obj_Search_Path (Position : Natural) return String_Ptr;
269 -- Functions to access the directory names in the Object search path
271 Include_Search_File : constant String_Access :=
272 new String'("ada_source_path");
273 Objects_Search_File : constant String_Access :=
274 new String'("ada_object_path");
275 -- Names of the files containg the default include or objects search
276 -- directories. These files, located in Sdefault.Search_Dir_Prefix, do
277 -- not necessarily exist.
279 Exec_Name : String_Ptr;
280 -- Executable name as typed by the user (used to compute the
281 -- executable prefix).
283 function Read_Default_Search_Dirs
284 (Search_Dir_Prefix : String_Access;
285 Search_File : String_Access;
286 Search_Dir_Default_Name : String_Access) return String_Access;
287 -- Read and return the default search directories from the file located
288 -- in Search_Dir_Prefix (as modified by update_path) and named Search_File.
289 -- If no such file exists or an error occurs then instead return the
290 -- Search_Dir_Default_Name (as modified by update_path).
292 function Get_RTS_Search_Dir
293 (Search_Dir : String;
294 File_Type : Search_File_Type) return String_Ptr;
295 -- This function retrieves the paths to the search (resp. lib) dirs and
296 -- return them. The search dir can be absolute or relative. If the search
297 -- dir contains Include_Search_File (resp. Object_Search_File), then this
298 -- function reads and returns the default search directories from the file.
299 -- Otherwise, if the directory is absolute, it will try to find 'adalib'
300 -- (resp. 'adainclude'). If found, null is returned. If the directory is
301 -- relative, the following directories for the directories 'adalib' and
302 -- 'adainclude' will be scanned:
304 -- - current directory (from which the tool has been spawned)
305 -- - $GNAT_ROOT/gcc/gcc-lib/$targ/$vers/
306 -- - $GNAT_ROOT/gcc/gcc-lib/$targ/$vers/rts-
308 -- The scan will stop as soon as the directory being searched for (adalib
309 -- or adainclude) is found. If the scan fails, null is returned.
311 -----------------------
312 -- Source File Input --
313 -----------------------
315 -- Source file input routines are used by the compiler to read the main
316 -- source files and the subsidiary source files (e.g. with'ed units), and
317 -- also by the binder to check presence/time stamps of sources.
319 procedure Read_Source_File
323 Src : out Source_Buffer_Ptr;
324 T : File_Type := Source);
325 -- Allocates a Source_Buffer of appropriate length and then reads the
326 -- entire contents of the source file N into the buffer. The address of
327 -- the allocated buffer is returned in Src.
329 -- Each line of text is terminated by one of the sequences:
336 -- The source is terminated by an EOF (16#1A#) character, which is
337 -- the last charcater of the returned source bufer (note that any
338 -- EOF characters in positions other than the last source character
339 -- are treated as representing blanks).
341 -- The logical lower bound of the source buffer is the input value of Lo,
342 -- and on exit Hi is set to the logical upper bound of the source buffer.
343 -- Note that the returned value in Src points to an array with a physical
344 -- lower bound of zero. This virtual origin addressing approach means that
345 -- a constrained array pointer can be used with a low bound of zero which
346 -- results in more efficient code.
348 -- If the given file cannot be opened, then the action depends on whether
349 -- this file is the current main unit (i.e. its name matches the name
350 -- returned by the most recent call to Next_Main_Source). If so, then the
351 -- failure to find the file is a fatal error, an error message is output,
352 -- and program execution is terminated. Otherwise (for the case of a
353 -- subsidiary source loaded directly or indirectly using with), a file
354 -- not found condition causes null to be set as the result value.
356 -- Note that the name passed to this function is the simple file name,
357 -- without any directory information. The implementation is responsible
358 -- for searching for the file in the appropriate directories.
360 -- Note the special case that if the file name is gnat.adc, then the
361 -- search for the file is done ONLY in the directory corresponding to
362 -- the current compilation environment, i.e. in the same directory
363 -- where the ali and object files will be written.
365 function Full_Source_Name return File_Name_Type;
366 function Current_Source_File_Stamp return Time_Stamp_Type;
367 -- Returns the full name/time stamp of the source file most recently read
368 -- using Read_Source_File. Calling this routine entails no source file
369 -- directory lookup penalty.
371 function Full_Source_Name (N : File_Name_Type) return File_Name_Type;
372 function Source_File_Stamp (N : File_Name_Type) return Time_Stamp_Type;
373 -- Returns the full name/time stamp of the source file whose simple name
374 -- is N which should not include path information. Note that if the file
375 -- cannot be located No_File is returned for the first routine and an
376 -- all blank time stamp is returned for the second (this is not an error
377 -- situation). The full name includes the appropriate directory
378 -- information. The source file directory lookup penalty is incurred
379 -- every single time the routines are called unless you have previously
380 -- called Source_File_Data (Cache => True). See below.
382 function Matching_Full_Source_Name
384 T : Time_Stamp_Type) return File_Name_Type;
385 -- Same semantics than Full_Source_Name but will search on the source
386 -- path until a source file with time stamp matching T is found. If
387 -- none is found returns No_File.
389 procedure Source_File_Data (Cache : Boolean);
390 -- By default source file data (full source file name and time stamp)
391 -- are looked up every time a call to Full_Source_Name (N) or
392 -- Source_File_Stamp (N) is made. This may be undesirable in certain
393 -- applications as this is uselessly slow if source file data does not
394 -- change during program execution. When this procedure is called with
395 -- Cache => True access to source file data does not encurr a penalty if
396 -- this data was previously retrieved.
398 -------------------------------------------
399 -- Representation of Library Information --
400 -------------------------------------------
402 -- Associated with each compiled source file is library information,
403 -- a string of bytes whose exact format is described in the body of
404 -- Lib.Writ. Compiling a source file generates this library information
405 -- for the compiled unit, and access the library information for units
406 -- that were compiled previously on which the unit being compiled depends.
408 -- How this information is stored is up to the implementation of this
409 -- package. At the interface level, this information is simply associated
410 -- with its corresponding source.
412 -- Several different implementations are possible:
414 -- 1. The information could be directly associated with the source file,
415 -- e.g. placed in a resource fork of this file on the Mac, or on
416 -- MS-DOS, written to the source file after the end of file mark.
418 -- 2. The information could be written into the generated object module
419 -- if the system supports the inclusion of arbitrary informational
420 -- byte streams into object files. In this case there must be a naming
421 -- convention that allows object files to be located given the name of
422 -- the corresponding source file.
424 -- 3. The information could be written to a separate file, whose name is
425 -- related to the name of the source file by a fixed convention.
427 -- Which of these three methods is chosen depends on the constraints of the
428 -- host operating system. The interface described here is independent of
429 -- which of these approaches is used.
431 -------------------------------
432 -- Library Information Input --
433 -------------------------------
435 -- These subprograms are used by the binder to read library information
436 -- files, see section above for representation of these files.
438 function Read_Library_Info
439 (Lib_File : File_Name_Type;
440 Fatal_Err : Boolean := False) return Text_Buffer_Ptr;
441 -- Allocates a Text_Buffer of appropriate length and reads in the entire
442 -- source of the library information from the library information file
443 -- whose name is given by the parameter Name.
445 -- See description of Read_Source_File for details on the format of the
446 -- returned text buffer (the format is identical). THe lower bound of
447 -- the Text_Buffer is always zero
449 -- If the specified file cannot be opened, then the action depends on
450 -- Fatal_Err. If Fatal_Err is True, an error message is given and the
451 -- compilation is abandoned. Otherwise if Fatal_Err is False, then null
452 -- is returned. Note that the Lib_File is a simple name which does not
453 -- include any directory information. The implementation is responsible
454 -- for searching for the file in appropriate directories.
456 -- If Opt.Check_Object_Consistency is set to True then this routine
457 -- checks whether the object file corresponding to the Lib_File is
458 -- consistent with it. The object file is inconsistent if the object
459 -- does not exist or if it has an older time stamp than Lib_File.
460 -- This check is not performed when the Lib_File is "locked" (i.e.
461 -- read/only) because in this case the object file may be buried
462 -- in a library. In case of inconsistencies Read_Library_Info
463 -- behaves as if it did not find Lib_File (namely if Fatal_Err is
464 -- False, null is returned).
466 function Full_Library_Info_Name return File_Name_Type;
467 function Full_Object_File_Name return File_Name_Type;
468 -- Returns the full name of the library/object file most recently read
469 -- using Read_Library_Info, including appropriate directory information.
470 -- Calling this routine entails no library file directory lookup
471 -- penalty. Note that the object file corresponding to a library file
472 -- is not actually read. Its time stamp is fected when the flag
473 -- Opt.Check_Object_Consistency is set.
475 function Current_Library_File_Stamp return Time_Stamp_Type;
476 function Current_Object_File_Stamp return Time_Stamp_Type;
477 -- The time stamps of the files returned by the previous two routines.
478 -- It is an error to call Current_Object_File_Stamp if
479 -- Opt.Check_Object_Consistency is set to False.
481 function Full_Lib_File_Name (N : File_Name_Type) return File_Name_Type;
482 function Library_File_Stamp (N : File_Name_Type) return Time_Stamp_Type;
483 -- Returns the full name/time stamp of library file N. N should not
484 -- include path information. Note that if the file cannot be located
485 -- No_File is returned for the first routine and an all blank time stamp
486 -- is returned for the second (this is not an error situation). The
487 -- full name includes the appropriate directory information. The library
488 -- file directory lookup penalty is incurred every single time this
489 -- routine is called.
491 function Lib_File_Name
492 (Source_File : File_Name_Type;
493 Munit_Index : Nat := 0) return File_Name_Type;
494 -- Given the name of a source file, returns the name of the corresponding
495 -- library information file. This may be the name of the object file, or
496 -- of a separate file used to store the library information. In either case
497 -- the returned result is suitable for use in a call to Read_Library_Info.
498 -- The Munit_Index is the unit index in multiple unit per file mode, or
499 -- zero in normal single unit per file mode (used to add ~nnn suffix).
500 -- Note: this subprogram is in this section because it is used by the
501 -- compiler to determine the proper library information names to be placed
502 -- in the generated library information file.
508 type Exit_Code_Type is (
509 E_Success, -- No warnings or errors
510 E_Warnings, -- Compiler warnings generated
511 E_No_Code, -- No code generated
512 E_No_Compile, -- Compilation not needed (smart recompilation)
513 E_Errors, -- Compiler error messages generated
514 E_Fatal, -- Fatal (serious) error, e.g. source file not found
515 E_Abort); -- Internally detected compiler error
517 procedure Exit_Program (Exit_Code : Exit_Code_Type);
518 pragma No_Return (Exit_Program);
519 -- A call to Exit_Program terminates execution with the given status.
520 -- A status of zero indicates normal completion, a non-zero status
521 -- indicates abnormal termination.
523 -------------------------
524 -- Command Line Access --
525 -------------------------
527 -- Direct interface to command line parameters. (We don't want to use
528 -- the predefined command line package because it defines functions
531 function Arg_Count return Natural;
532 pragma Import (C, Arg_Count, "__gnat_arg_count");
533 -- Get number of arguments (note: optional globbing may be enabled)
535 procedure Fill_Arg (A : System.Address; Arg_Num : Integer);
536 pragma Import (C, Fill_Arg, "__gnat_fill_arg");
537 -- Store one argument
539 function Len_Arg (Arg_Num : Integer) return Integer;
540 pragma Import (C, Len_Arg, "__gnat_len_arg");
541 -- Get length of argument
545 ALI_Suffix : constant String_Ptr := new String'("ali");
546 -- The suffix used for the library files (also known as ALI files).
548 Current_Main : File_Name_Type := No_File;
549 -- Used to save a simple file name between calls to Next_Main_Source and
550 -- Read_Source_File. If the file name argument to Read_Source_File is
551 -- No_File, that indicates that the file whose name was returned by the
552 -- last call to Next_Main_Source (and stored here) is to be read.
554 Object_Suffix : constant String := Get_Object_Suffix.all;
555 -- The suffix used for the object files.
557 Output_FD : File_Descriptor;
558 -- The file descriptor for the current library info, tree or binder output
560 Output_File_Name : File_Name_Type;
561 -- File_Name_Type for name of open file whose FD is in Output_FD, the name
562 -- stored does not include the trailing NUL character.
564 Argument_Count : constant Integer := Arg_Count - 1;
565 -- Number of arguments (excluding program name)
567 type File_Name_Array is array (Int range <>) of String_Ptr;
568 type File_Name_Array_Ptr is access File_Name_Array;
569 File_Names : File_Name_Array_Ptr :=
570 new File_Name_Array (1 .. Int (Argument_Count) + 2);
571 -- As arguments are scanned, file names are stored in this array
572 -- The strings do not have terminating NUL files. The array is
573 -- extensible, because when using project files, there may be
574 -- more files than arguments on the command line.
576 Current_File_Name_Index : Int := 0;
577 -- The index in File_Names of the last file opened by Next_Main_Source
578 -- or Next_Main_Lib_File. The value 0 indicates that no files have been
581 procedure Create_File_And_Check
582 (Fdesc : out File_Descriptor;
584 -- Create file whose name (NUL terminated) is in Name_Buffer (with the
585 -- length in Name_Len), and place the resulting descriptor in Fdesc.
586 -- Issue message and exit with fatal error if file cannot be created.
587 -- The Fmode parameter is set to either Text or Binary (see description
588 -- of GNAT.OS_Lib.Create_File).
590 type Program_Type is (Compiler, Binder, Make, Gnatls, Unspecified);
591 -- Program currently running
592 procedure Set_Program (P : Program_Type);
593 -- Indicates to the body of Osint the program currently running.
594 -- This procedure is called by the child packages of Osint.
595 -- A check is made that this procedure is not called several times.
597 function More_Files return Boolean;
598 -- Implements More_Source_Files and More_Lib_Files.
600 function Next_Main_File return File_Name_Type;
601 -- Implements Next_Main_Source and Next_Main_Lib_File.
603 function Object_File_Name (N : File_Name_Type) return File_Name_Type;
604 -- Constructs the name of the object file corresponding to library
605 -- file N. If N is a full file name than the returned file name will
606 -- also be a full file name. Note that no lookup in the library file
607 -- directories is done for this file. This routine merely constructs
610 procedure Write_Info (Info : String);
611 -- Implementation of Write_Binder_Info, Write_Debug_Info and
612 -- Write_Library_Info (identical)