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+------------------------------------------------------------------------------
+-- --
+-- GNAT COMPILER COMPONENTS --
+-- --
+-- O S I N T --
+-- --
+-- S p e c --
+-- --
+-- Copyright (C) 1992-2008, Free Software Foundation, Inc. --
+-- --
+-- GNAT is free software; you can redistribute it and/or modify it under --
+-- terms of the GNU General Public License as published by the Free Soft- --
+-- ware Foundation; either version 3, or (at your option) any later ver- --
+-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
+-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
+-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
+-- for more details. You should have received a copy of the GNU General --
+-- Public License distributed with GNAT; see file COPYING3. If not, go to --
+-- http://www.gnu.org/licenses for a complete copy of the license. --
+-- --
+-- GNAT was originally developed by the GNAT team at New York University. --
+-- Extensive contributions were provided by Ada Core Technologies Inc. --
+-- --
+------------------------------------------------------------------------------
+
+-- This package contains the low level, operating system routines used in the
+-- compiler and binder for command line processing and file input output.
+
+with Namet; use Namet;
+with Types; use Types;
+
+with System.OS_Lib; use System.OS_Lib;
+with System; use System;
+
+pragma Elaborate_All (System.OS_Lib);
+-- For the call to function Get_Target_Object_Suffix in the private part
+
+package Osint is
+
+ Multi_Unit_Index_Character : Character := '~';
+ -- The character before the index of the unit in a multi-unit source, in
+ -- ALI and object file names. This is not a constant, because it is changed
+ -- to '$' on VMS.
+
+ Ada_Include_Path : constant String := "ADA_INCLUDE_PATH";
+ Ada_Objects_Path : constant String := "ADA_OBJECTS_PATH";
+ Project_Include_Path_File : constant String := "ADA_PRJ_INCLUDE_FILE";
+ Project_Objects_Path_File : constant String := "ADA_PRJ_OBJECTS_FILE";
+
+ procedure Initialize;
+ -- Initialize internal tables
+
+ function Normalize_Directory_Name (Directory : String) return String_Ptr;
+ -- Verify and normalize a directory name. If directory name is invalid,
+ -- this will return an empty string. Otherwise it will insure a trailing
+ -- slash and make other normalizations.
+
+ type File_Type is (Source, Library, Config, Definition, Preprocessing_Data);
+
+ function Find_File
+ (N : File_Name_Type;
+ T : File_Type) return File_Name_Type;
+ -- Finds a source, library or config file depending on the value of T
+ -- following the directory search order rules unless N is the name of the
+ -- file just read with Next_Main_File and already contains directory
+ -- information, in which case just look in the Primary_Directory. Returns
+ -- File_Name_Type of the full file name if found, No_File if file not
+ -- found. Note that for the special case of gnat.adc, only the compilation
+ -- environment directory is searched, i.e. the directory where the ali and
+ -- object files are written. Another special case is Debug_Generated_Code
+ -- set and the file name ends on ".dg", in which case we look for the
+ -- generated file only in the current directory, since that is where it is
+ -- always built.
+
+ function Get_File_Names_Case_Sensitive return Int;
+ pragma Import (C, Get_File_Names_Case_Sensitive,
+ "__gnat_get_file_names_case_sensitive");
+ File_Names_Case_Sensitive : constant Boolean :=
+ Get_File_Names_Case_Sensitive /= 0;
+ -- Set to indicate whether the operating system convention is for file
+ -- names to be case sensitive (e.g., in Unix, set True), or non case
+ -- sensitive (e.g., in OS/2, set False).
+
+ procedure Canonical_Case_File_Name (S : in out String);
+ -- Given a file name, converts it to canonical case form. For systems
+ -- where file names are case sensitive, this procedure has no effect.
+ -- If file names are not case sensitive (i.e. for example if you have
+ -- the file "xyz.adb", you can refer to it as XYZ.adb or XyZ.AdB), then
+ -- this call converts the given string to canonical all lower case form,
+ -- so that two file names compare equal if they refer to the same file.
+
+ function Number_Of_Files return Int;
+ -- Gives the total number of filenames found on the command line
+
+ No_Index : constant := -1;
+ -- Value used in Add_File to indicate no index is specified for main
+
+ procedure Add_File (File_Name : String; Index : Int := No_Index);
+ -- Called by the subprogram processing the command line for each file name
+ -- found. The index, when not defaulted to No_Index is the index of the
+ -- subprogram in its source, zero indicating that the source is not
+ -- multi-unit.
+
+ procedure Find_Program_Name;
+ -- Put simple name of current program being run (excluding the directory
+ -- path) in Name_Buffer, with the length in Name_Len.
+
+ function Program_Name (Nam : String; Prog : String) return String_Access;
+ -- In the native compilation case, Create a string containing Nam. In the
+ -- cross compilation case, looks at the prefix of the current program being
+ -- run and prepend it to Nam. For instance if the program being run is
+ -- <target>-gnatmake and Nam is "gcc", the returned value will be a pointer
+ -- to "<target>-gcc". In the specific case where AAMP_On_Target is set, the
+ -- name "gcc" is mapped to "gnaamp", and names of the form "gnat*" are
+ -- mapped to "gnaamp*". This function clobbers Name_Buffer and Name_Len.
+ -- Also look at any suffix, e.g. gnatmake-4.1 -> "gcc-4.1". Prog is the
+ -- default name of the current program being executed, e.g. "gnatmake",
+ -- "gnatlink".
+
+ procedure Write_Program_Name;
+ -- Writes name of program as invoked to the current output (normally
+ -- standard output).
+
+ procedure Fail (S1 : String; S2 : String := ""; S3 : String := "");
+ pragma No_Return (Fail);
+ -- Outputs error messages S1 & S2 & S3 preceded by the name of the
+ -- executing program and exits with E_Fatal. The output goes to standard
+ -- error, except if special output is in effect (see Output).
+
+ function Is_Directory_Separator (C : Character) return Boolean;
+ -- Returns True if C is a directory separator
+
+ function Get_Directory (Name : File_Name_Type) return File_Name_Type;
+ -- Get the prefix directory name (if any) from Name. The last separator
+ -- is preserved. Return the normalized current directory if there is no
+ -- directory part in the name.
+
+ function Is_Readonly_Library (File : File_Name_Type) return Boolean;
+ -- Check if this library file is a read-only file
+
+ function Strip_Directory (Name : File_Name_Type) return File_Name_Type;
+ -- Strips the prefix directory name (if any) from Name. Returns the
+ -- stripped name. Name cannot end with a directory separator.
+
+ function Strip_Suffix (Name : File_Name_Type) return File_Name_Type;
+ -- Strips the suffix (the last '.' and whatever comes after it) from Name.
+ -- Returns the stripped name.
+
+ function Executable_Name (Name : File_Name_Type) return File_Name_Type;
+ -- Given a file name it adds the appropriate suffix at the end so that
+ -- it becomes the name of the executable on the system at end. For
+ -- instance under DOS it adds the ".exe" suffix, whereas under UNIX no
+ -- suffix is added.
+
+ function Executable_Name (Name : String) return String;
+ -- Same as above, with String parameters
+
+ function File_Stamp (Name : File_Name_Type) return Time_Stamp_Type;
+ -- Returns the time stamp of file Name. Name should include relative path
+ -- information in order to locate it. If the source file cannot be opened,
+ -- or Name = No_File, and all blank time stamp is returned (this is not an
+ -- error situation).
+
+ function File_Stamp (Name : Path_Name_Type) return Time_Stamp_Type;
+ -- Same as above for a path name
+
+ type String_Access_List is array (Positive range <>) of String_Access;
+ -- Dereferenced type used to return a list of file specs in
+ -- To_Canonical_File_List.
+
+ type String_Access_List_Access is access all String_Access_List;
+ -- Type used to return a String_Access_List without dragging in secondary
+ -- stack.
+
+ function To_Canonical_File_List
+ (Wildcard_Host_File : String;
+ Only_Dirs : Boolean) return String_Access_List_Access;
+ -- Expand a wildcard host syntax file or directory specification (e.g. on
+ -- a VMS host, any file or directory spec that contains: "*", or "%", or
+ -- "...") and return a list of valid Unix syntax file or directory specs.
+ -- If Only_Dirs is True, then only return directories.
+
+ function To_Canonical_Dir_Spec
+ (Host_Dir : String;
+ Prefix_Style : Boolean) return String_Access;
+ -- Convert a host syntax directory specification (e.g. on a VMS host:
+ -- "SYS$DEVICE:[DIR]") to canonical (Unix) syntax (e.g. "/sys$device/dir").
+ -- If Prefix_Style then make it a valid file specification prefix. A file
+ -- specification prefix is a directory specification that can be appended
+ -- with a simple file specification to yield a valid absolute or relative
+ -- path to a file. On a conversion to Unix syntax this simply means the
+ -- spec has a trailing slash ("/").
+
+ function To_Canonical_File_Spec
+ (Host_File : String) return String_Access;
+ -- Convert a host syntax file specification (e.g. on a VMS host:
+ -- "SYS$DEVICE:[DIR]FILE.EXT;69 to canonical (Unix) syntax (e.g.
+ -- "/sys$device/dir/file.ext.69").
+
+ function To_Canonical_Path_Spec
+ (Host_Path : String) return String_Access;
+ -- Convert a host syntax Path specification (e.g. on a VMS host:
+ -- "SYS$DEVICE:[BAR],DISK$USER:[FOO] to canonical (Unix) syntax (e.g.
+ -- "/sys$device/foo:disk$user/foo").
+
+ function To_Host_Dir_Spec
+ (Canonical_Dir : String;
+ Prefix_Style : Boolean) return String_Access;
+ -- Convert a canonical syntax directory specification to host syntax.
+ -- The Prefix_Style flag is currently ignored but should be set to
+ -- False.
+
+ function To_Host_File_Spec
+ (Canonical_File : String) return String_Access;
+ -- Convert a canonical syntax file specification to host syntax
+
+ function Relocate_Path
+ (Prefix : String;
+ Path : String) return String_Ptr;
+ -- Given an absolute path and a prefix, if Path starts with Prefix,
+ -- replace the Prefix substring with the root installation directory.
+ -- By default, try to compute the root installation directory by looking
+ -- at the executable name as it was typed on the command line and, if
+ -- needed, use the PATH environment variable. If the above computation
+ -- fails, return Path. This function assumes Prefix'First = Path'First.
+
+ function Shared_Lib (Name : String) return String;
+ -- Returns the runtime shared library in the form -l<name>-<version> where
+ -- version is the GNAT runtime library option for the platform. For example
+ -- this routine called with Name set to "gnat" will return "-lgnat-5.02"
+ -- on UNIX and Windows and -lgnat_5_02 on VMS.
+
+ -------------------------
+ -- Search Dir Routines --
+ -------------------------
+
+ function Include_Dir_Default_Prefix return String;
+ -- Return the directory of the run-time library sources, as modified
+ -- by update_path.
+
+ function Object_Dir_Default_Prefix return String;
+ -- Return the directory of the run-time library ALI and object files, as
+ -- modified by update_path.
+
+ procedure Add_Default_Search_Dirs;
+ -- This routine adds the default search dirs indicated by the environment
+ -- variables and sdefault package.
+
+ procedure Add_Lib_Search_Dir (Dir : String);
+ -- Add Dir at the end of the library file search path
+
+ procedure Add_Src_Search_Dir (Dir : String);
+ -- Add Dir at the end of the source file search path
+
+ procedure Get_Next_Dir_In_Path_Init
+ (Search_Path : String_Access);
+ function Get_Next_Dir_In_Path
+ (Search_Path : String_Access) return String_Access;
+ -- These subprograms are used to parse out the directory names in a search
+ -- path specified by a Search_Path argument. The procedure initializes an
+ -- internal pointer to point to the initial directory name, and calls to
+ -- the function return successive directory names, with a null pointer
+ -- marking the end of the list.
+
+ type Search_File_Type is (Include, Objects);
+
+ procedure Add_Search_Dirs
+ (Search_Path : String_Ptr;
+ Path_Type : Search_File_Type);
+ -- These procedure adds all the search directories that are in Search_Path
+ -- in the proper file search path (library or source)
+
+ function Get_Primary_Src_Search_Directory return String_Ptr;
+ -- Retrieved the primary directory (directory containing the main source
+ -- file for Gnatmake.
+
+ function Nb_Dir_In_Src_Search_Path return Natural;
+ function Dir_In_Src_Search_Path (Position : Natural) return String_Ptr;
+ -- Functions to access the directory names in the source search path
+
+ function Nb_Dir_In_Obj_Search_Path return Natural;
+ function Dir_In_Obj_Search_Path (Position : Natural) return String_Ptr;
+ -- Functions to access the directory names in the Object search path
+
+ Include_Search_File : constant String_Access :=
+ new String'("ada_source_path");
+ Objects_Search_File : constant String_Access :=
+ new String'("ada_object_path");
+ -- Names of the files containing the default include or objects search
+ -- directories. These files, located in Sdefault.Search_Dir_Prefix, do
+ -- not necessarily exist.
+
+ Exec_Name : String_Ptr;
+ -- Executable name as typed by the user (used to compute the
+ -- executable prefix).
+
+ function Read_Default_Search_Dirs
+ (Search_Dir_Prefix : String_Access;
+ Search_File : String_Access;
+ Search_Dir_Default_Name : String_Access) return String_Access;
+ -- Read and return the default search directories from the file located
+ -- in Search_Dir_Prefix (as modified by update_path) and named Search_File.
+ -- If no such file exists or an error occurs then instead return the
+ -- Search_Dir_Default_Name (as modified by update_path).
+
+ function Get_RTS_Search_Dir
+ (Search_Dir : String;
+ File_Type : Search_File_Type) return String_Ptr;
+ -- This function retrieves the paths to the search (resp. lib) dirs and
+ -- return them. The search dir can be absolute or relative. If the search
+ -- dir contains Include_Search_File (resp. Object_Search_File), then this
+ -- function reads and returns the default search directories from the file.
+ -- Otherwise, if the directory is absolute, it will try to find 'adalib'
+ -- (resp. 'adainclude'). If found, null is returned. If the directory is
+ -- relative, the following directories for the directories 'adalib' and
+ -- 'adainclude' will be scanned:
+ --
+ -- - current directory (from which the tool has been spawned)
+ -- - $GNAT_ROOT/gcc/gcc-lib/$targ/$vers/
+ -- - $GNAT_ROOT/gcc/gcc-lib/$targ/$vers/rts-
+ --
+ -- The scan will stop as soon as the directory being searched for (adalib
+ -- or adainclude) is found. If the scan fails, null is returned.
+
+ -----------------------
+ -- Source File Input --
+ -----------------------
+
+ -- Source file input routines are used by the compiler to read the main
+ -- source files and the subsidiary source files (e.g. with'ed units), and
+ -- also by the binder to check presence/time stamps of sources.
+
+ procedure Read_Source_File
+ (N : File_Name_Type;
+ Lo : Source_Ptr;
+ Hi : out Source_Ptr;
+ Src : out Source_Buffer_Ptr;
+ T : File_Type := Source);
+ -- Allocates a Source_Buffer of appropriate length and then reads the
+ -- entire contents of the source file N into the buffer. The address of
+ -- the allocated buffer is returned in Src.
+ --
+ -- Each line of text is terminated by one of the sequences:
+ --
+ -- CR
+ -- CR/LF
+ -- LF/CR
+ -- LF
+
+ -- The source is terminated by an EOF (16#1A#) character, which is the last
+ -- character of the returned source buffer (note that any EOF characters in
+ -- positions other than the last source character are treated as blanks).
+ --
+ -- The logical lower bound of the source buffer is the input value of Lo,
+ -- and on exit Hi is set to the logical upper bound of the source buffer.
+ -- Note that the returned value in Src points to an array with a physical
+ -- lower bound of zero. This virtual origin addressing approach means that
+ -- a constrained array pointer can be used with a low bound of zero which
+ -- results in more efficient code.
+ --
+ -- If the given file cannot be opened, then the action depends on whether
+ -- this file is the current main unit (i.e. its name matches the name
+ -- returned by the most recent call to Next_Main_Source). If so, then the
+ -- failure to find the file is a fatal error, an error message is output,
+ -- and program execution is terminated. Otherwise (for the case of a
+ -- subsidiary source loaded directly or indirectly using with), a file
+ -- not found condition causes null to be set as the result value.
+ --
+ -- Note that the name passed to this function is the simple file name,
+ -- without any directory information. The implementation is responsible
+ -- for searching for the file in the appropriate directories.
+ --
+ -- Note the special case that if the file name is gnat.adc, then the search
+ -- for the file is done ONLY in the directory corresponding to the current
+ -- compilation environment, i.e. in the same directory where the ali and
+ -- object files will be written.
+
+ function Full_Source_Name return File_Name_Type;
+ function Current_Source_File_Stamp return Time_Stamp_Type;
+ -- Returns the full name/time stamp of the source file most recently read
+ -- using Read_Source_File. Calling this routine entails no source file
+ -- directory lookup penalty.
+
+ function Full_Source_Name (N : File_Name_Type) return File_Name_Type;
+ function Source_File_Stamp (N : File_Name_Type) return Time_Stamp_Type;
+ -- Returns the full name/time stamp of the source file whose simple name
+ -- is N which should not include path information. Note that if the file
+ -- cannot be located No_File is returned for the first routine and an all
+ -- blank time stamp is returned for the second (this is not an error
+ -- situation). The full name includes appropriate directory information.
+ -- The source file directory lookup penalty is incurred every single time
+ -- the routines are called unless you have previously called
+ -- Source_File_Data (Cache => True). See below.
+
+ function Current_File_Index return Int;
+ -- Return the index in its source file of the current main unit
+
+ function Matching_Full_Source_Name
+ (N : File_Name_Type;
+ T : Time_Stamp_Type) return File_Name_Type;
+ -- Same semantics than Full_Source_Name but will search on the source path
+ -- until a source file with time stamp matching T is found. If none is
+ -- found returns No_File.
+
+ procedure Source_File_Data (Cache : Boolean);
+ -- By default source file data (full source file name and time stamp)
+ -- are looked up every time a call to Full_Source_Name (N) or
+ -- Source_File_Stamp (N) is made. This may be undesirable in certain
+ -- applications as this is uselessly slow if source file data does not
+ -- change during program execution. When this procedure is called with
+ -- Cache => True access to source file data does not incur a penalty if
+ -- this data was previously retrieved.
+
+ -------------------------------------------
+ -- Representation of Library Information --
+ -------------------------------------------
+
+ -- Associated with each compiled source file is library information,
+ -- a string of bytes whose exact format is described in the body of
+ -- Lib.Writ. Compiling a source file generates this library information
+ -- for the compiled unit, and access the library information for units
+ -- that were compiled previously on which the unit being compiled depends.
+
+ -- How this information is stored is up to the implementation of this
+ -- package. At the interface level, this information is simply associated
+ -- with its corresponding source.
+
+ -- Several different implementations are possible:
+
+ -- 1. The information could be directly associated with the source file,
+ -- e.g. placed in a resource fork of this file on the Mac, or on
+ -- MS-DOS, written to the source file after the end of file mark.
+
+ -- 2. The information could be written into the generated object module
+ -- if the system supports the inclusion of arbitrary informational
+ -- byte streams into object files. In this case there must be a naming
+ -- convention that allows object files to be located given the name of
+ -- the corresponding source file.
+
+ -- 3. The information could be written to a separate file, whose name is
+ -- related to the name of the source file by a fixed convention.
+
+ -- Which of these three methods is chosen depends on the constraints of the
+ -- host operating system. The interface described here is independent of
+ -- which of these approaches is used. Currently all versions of GNAT use
+ -- the third approach with a file name of xxx.ali where xxx is the source
+ -- file name.
+
+ -------------------------------
+ -- Library Information Input --
+ -------------------------------
+
+ -- These subprograms are used by the binder to read library information
+ -- files, see section above for representation of these files.
+
+ function Read_Library_Info
+ (Lib_File : File_Name_Type;
+ Fatal_Err : Boolean := False) return Text_Buffer_Ptr;
+ -- Allocates a Text_Buffer of appropriate length and reads in the entire
+ -- source of the library information from the library information file
+ -- whose name is given by the parameter Name.
+ --
+ -- See description of Read_Source_File for details on the format of the
+ -- returned text buffer (the format is identical). The lower bound of
+ -- the Text_Buffer is always zero
+ --
+ -- If the specified file cannot be opened, then the action depends on
+ -- Fatal_Err. If Fatal_Err is True, an error message is given and the
+ -- compilation is abandoned. Otherwise if Fatal_Err is False, then null
+ -- is returned. Note that the Lib_File is a simple name which does not
+ -- include any directory information. The implementation is responsible
+ -- for searching for the file in appropriate directories.
+ --
+ -- If Opt.Check_Object_Consistency is set to True then this routine
+ -- checks whether the object file corresponding to the Lib_File is
+ -- consistent with it. The object file is inconsistent if the object
+ -- does not exist or if it has an older time stamp than Lib_File.
+ -- This check is not performed when the Lib_File is "locked" (i.e.
+ -- read/only) because in this case the object file may be buried
+ -- in a library. In case of inconsistencies Read_Library_Info
+ -- behaves as if it did not find Lib_File (namely if Fatal_Err is
+ -- False, null is returned).
+
+ function Full_Library_Info_Name return File_Name_Type;
+ function Full_Object_File_Name return File_Name_Type;
+ -- Returns the full name of the library/object file most recently read
+ -- using Read_Library_Info, including appropriate directory information.
+ -- Calling this routine entails no library file directory lookup
+ -- penalty. Note that the object file corresponding to a library file
+ -- is not actually read. Its time stamp is affected when the flag
+ -- Opt.Check_Object_Consistency is set.
+
+ function Current_Library_File_Stamp return Time_Stamp_Type;
+ function Current_Object_File_Stamp return Time_Stamp_Type;
+ -- The time stamps of the files returned by the previous two routines.
+ -- It is an error to call Current_Object_File_Stamp if
+ -- Opt.Check_Object_Consistency is set to False.
+
+ function Full_Lib_File_Name (N : File_Name_Type) return File_Name_Type;
+ function Library_File_Stamp (N : File_Name_Type) return Time_Stamp_Type;
+ -- Returns the full name/time stamp of library file N. N should not include
+ -- path information. Note that if the file cannot be located No_File is
+ -- returned for the first routine and an all blank time stamp is returned
+ -- for the second (this is not an error situation). The full name includes
+ -- the appropriate directory information. The library file directory lookup
+ -- penalty is incurred every single time this routine is called.
+
+ function Lib_File_Name
+ (Source_File : File_Name_Type;
+ Munit_Index : Nat := 0) return File_Name_Type;
+ -- Given the name of a source file, returns the name of the corresponding
+ -- library information file. This may be the name of the object file or of
+ -- a separate file used to store the library information. In the current
+ -- implementation, a separate file (the ALI file) is always used. In either
+ -- case the returned result is suitable for calling Read_Library_Info. The
+ -- Munit_Index is the unit index in multiple unit per file mode, or zero in
+ -- normal single unit per file mode (used to add ~nnn suffix). Note: this
+ -- subprogram is in this section because it is used by the compiler to
+ -- determine the proper library information names to be placed in the
+ -- generated library information file.
+
+ -----------------
+ -- Termination --
+ -----------------
+
+ Current_Exit_Status : Integer := 0;
+ -- Exit status that is set with procedure OS_Exit_Through_Exception below
+ -- and can be used in exception handler for Types.Terminate_Program to call
+ -- Set_Exit_Status as the last action of the program.
+
+ procedure OS_Exit_Through_Exception (Status : Integer);
+ -- Set the Current_Exit_Status, then raise Types.Terminate_Program
+
+ type Exit_Code_Type is (
+ E_Success, -- No warnings or errors
+ E_Warnings, -- Compiler warnings generated
+ E_No_Code, -- No code generated
+ E_No_Compile, -- Compilation not needed (smart recompilation)
+ E_Errors, -- Compiler error messages generated
+ E_Fatal, -- Fatal (serious) error, e.g. source file not found
+ E_Abort); -- Internally detected compiler error
+
+ procedure Exit_Program (Exit_Code : Exit_Code_Type);
+ pragma No_Return (Exit_Program);
+ -- A call to Exit_Program terminates execution with the given status. A
+ -- status of zero indicates normal completion, a non-zero status indicates
+ -- abnormal termination.
+
+ -------------------------
+ -- Command Line Access --
+ -------------------------
+
+ -- Direct interface to command line parameters. (We don't want to use
+ -- the predefined command line package because it defines functions
+ -- returning string)
+
+ function Arg_Count return Natural;
+ pragma Import (C, Arg_Count, "__gnat_arg_count");
+ -- Get number of arguments (note: optional globbing may be enabled)
+
+ procedure Fill_Arg (A : System.Address; Arg_Num : Integer);
+ pragma Import (C, Fill_Arg, "__gnat_fill_arg");
+ -- Store one argument
+
+ function Len_Arg (Arg_Num : Integer) return Integer;
+ pragma Import (C, Len_Arg, "__gnat_len_arg");
+ -- Get length of argument
+
+private
+
+ ALI_Suffix : constant String_Ptr := new String'("ali");
+ -- The suffix used for the library files (also known as ALI files)
+
+ Current_Main : File_Name_Type := No_File;
+ -- Used to save a simple file name between calls to Next_Main_Source and
+ -- Read_Source_File. If the file name argument to Read_Source_File is
+ -- No_File, that indicates that the file whose name was returned by the
+ -- last call to Next_Main_Source (and stored here) is to be read.
+
+ Target_Object_Suffix : constant String := Get_Target_Object_Suffix.all;
+ -- The suffix used for the target object files
+
+ Output_FD : File_Descriptor;
+ -- File descriptor for current library info, list, tree, or binder output
+
+ Output_File_Name : File_Name_Type;
+ -- File_Name_Type for name of open file whose FD is in Output_FD, the name
+ -- stored does not include the trailing NUL character.
+
+ Argument_Count : constant Integer := Arg_Count - 1;
+ -- Number of arguments (excluding program name)
+
+ type File_Name_Array is array (Int range <>) of String_Ptr;
+ type File_Name_Array_Ptr is access File_Name_Array;
+ File_Names : File_Name_Array_Ptr :=
+ new File_Name_Array (1 .. Int (Argument_Count) + 2);
+ -- As arguments are scanned, file names are stored in this array. The
+ -- strings do not have terminating NUL files. The array is extensible,
+ -- because when using project files, there may be more files than
+ -- arguments on the command line.
+
+ type File_Index_Array is array (Int range <>) of Int;
+ type File_Index_Array_Ptr is access File_Index_Array;
+ File_Indexes : File_Index_Array_Ptr :=
+ new File_Index_Array (1 .. Int (Argument_Count) + 2);
+
+ Current_File_Name_Index : Int := 0;
+ -- The index in File_Names of the last file opened by Next_Main_Source
+ -- or Next_Main_Lib_File. The value 0 indicates that no files have been
+ -- opened yet.
+
+ procedure Create_File_And_Check
+ (Fdesc : out File_Descriptor;
+ Fmode : Mode);
+ -- Create file whose name (NUL terminated) is in Name_Buffer (with the
+ -- length in Name_Len), and place the resulting descriptor in Fdesc. Issue
+ -- message and exit with fatal error if file cannot be created. The Fmode
+ -- parameter is set to either Text or Binary (for details see description
+ -- of System.OS_Lib.Create_File).
+
+ type Program_Type is (Compiler, Binder, Make, Gnatls, Unspecified);
+ -- Program currently running
+ procedure Set_Program (P : Program_Type);
+ -- Indicates to the body of Osint the program currently running. This
+ -- procedure is called by the child packages of Osint. A check is made
+ -- that this procedure is not called more than once.
+
+ function More_Files return Boolean;
+ -- Implements More_Source_Files and More_Lib_Files
+
+ function Next_Main_File return File_Name_Type;
+ -- Implements Next_Main_Source and Next_Main_Lib_File
+
+ function Object_File_Name (N : File_Name_Type) return File_Name_Type;
+ -- Constructs the name of the object file corresponding to library file N.
+ -- If N is a full file name than the returned file name will also be a full
+ -- file name. Note that no lookup in the library file directories is done
+ -- for this file. This routine merely constructs the name.
+
+ procedure Write_Info (Info : String);
+ -- Implementation of Write_Binder_Info, Write_Debug_Info and
+ -- Write_Library_Info (identical)
+
+ procedure Write_With_Check (A : Address; N : Integer);
+ -- Writes N bytes from buffer starting at address A to file whose FD is
+ -- stored in Output_FD, and whose file name is stored as a File_Name_Type
+ -- in Output_File_Name. A check is made for disk full, and if this is
+ -- detected, the file being written is deleted, and a fatal error is
+ -- signalled.
+
+end Osint;