-- --
-- B o d y --
-- --
--- Copyright (C) 1992-2003 Free Software Foundation, Inc. --
+-- Copyright (C) 1992-2007, 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 2, or (at your option) any later ver- --
+-- 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 COPYING. If not, write --
--- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
--- MA 02111-1307, USA. --
+-- 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. --
with Debug; use Debug;
with Binderr; use Binderr;
-with Lib; use Lib;
-with Namet; use Namet;
with Opt; use Opt;
with Output; use Output;
with Osint; use Osint;
-
-with System.CRC32;
-with System.Memory;
+with Scans; use Scans;
+with Scng;
+with Sinput.C;
+with Snames; use Snames;
+with Styleg;
package body ALI.Util is
+ -- Empty procedures needed to instantiate Scng. Error procedures are
+ -- empty, because we don't want to report any errors when computing
+ -- a source checksum.
+
+ procedure Post_Scan;
+
+ procedure Error_Msg (Msg : String; Flag_Location : Source_Ptr);
+
+ procedure Error_Msg_S (Msg : String);
+
+ procedure Error_Msg_SC (Msg : String);
+
+ procedure Error_Msg_SP (Msg : String);
+
+ procedure Obsolescent_Check (S : Source_Ptr);
+
+ -- Instantiation of Styleg, needed to instantiate Scng
+
+ package Style is new Styleg
+ (Error_Msg, Error_Msg_S, Error_Msg_SC, Error_Msg_SP);
+
+ -- A Scanner is needed to get checksum of a source (procedure
+ -- Get_File_Checksum).
+
+ package Scanner is new Scng
+ (Post_Scan, Error_Msg, Error_Msg_S, Error_Msg_SC, Error_Msg_SP,
+ Obsolescent_Check, Style);
+
type Header_Num is range 0 .. 1_000;
function Hash (F : File_Name_Type) return Header_Num;
Hash => Hash,
Equal => "=");
- -----------------------
- -- Local Subprograms --
- -----------------------
-
- procedure Accumulate_Checksum (C : Character; Csum : in out Word);
- pragma Inline (Accumulate_Checksum);
- -- This routine accumulates the checksum given character C. During the
- -- scanning of a source file, this routine is called with every character
- -- in the source, excluding blanks, and all control characters (except
- -- that ESC is included in the checksum). Upper case letters not in string
- -- literals are folded by the caller. See Sinput spec for the documentation
- -- of the checksum algorithm. Note: checksum values are only used if we
- -- generate code, so it is not necessary to worry about making the right
- -- sequence of calls in any error situation.
-
- procedure Initialize_Checksum (Csum : out Word);
- -- Sets initial value of Csum before any calls to Accumulate_Checksum
-
- -------------------------
- -- Accumulate_Checksum --
- -------------------------
-
- procedure Accumulate_Checksum (C : Character; Csum : in out Word) is
- begin
- System.CRC32.Update (System.CRC32.CRC32 (Csum), C);
- end Accumulate_Checksum;
-
---------------------
-- Checksums_Match --
---------------------
return Checksum1 = Checksum2 and then Checksum1 /= Checksum_Error;
end Checksums_Match;
- -----------------------
- -- Get_File_Checksum --
- -----------------------
-
- function Get_File_Checksum (Fname : Name_Id) return Word is
- Src : Source_Buffer_Ptr;
- Hi : Source_Ptr;
- Csum : Word;
- Ptr : Source_Ptr;
-
- Bad : exception;
- -- Raised if file not found, or file format error
-
- use ASCII;
- -- Make control characters visible
+ ---------------
+ -- Error_Msg --
+ ---------------
+ procedure Error_Msg (Msg : String; Flag_Location : Source_Ptr) is
+ pragma Warnings (Off, Msg);
+ pragma Warnings (Off, Flag_Location);
begin
- Read_Source_File (Fname, 0, Hi, Src);
-
- -- If we cannot find the file, then return an impossible checksum,
- -- impossible becaues checksums have the high order bit zero, so
- -- that checksums do not match.
-
- if Src = null then
- raise Bad;
- end if;
-
- Initialize_Checksum (Csum);
- Ptr := 0;
-
- loop
- case Src (Ptr) is
-
- -- Spaces and formatting information are ignored in checksum
-
- when ' ' | CR | LF | VT | FF | HT =>
- Ptr := Ptr + 1;
-
- -- EOF is ignored unless it is the last character
-
- when EOF =>
- if Ptr = Hi then
- System.Memory.Free (Src.all'Address);
- return Csum;
- else
- Ptr := Ptr + 1;
- end if;
-
- -- Non-blank characters that are included in the checksum
-
- when '#' | '&' | '*' | ':' | '(' | ',' | '.' | '=' | '>' |
- '<' | ')' | '/' | ';' | '|' | '!' | '+' | '_' |
- '0' .. '9' | 'a' .. 'z'
- =>
- Accumulate_Checksum (Src (Ptr), Csum);
- Ptr := Ptr + 1;
-
- -- Upper case letters, fold to lower case
-
- when 'A' .. 'Z' =>
- Accumulate_Checksum
- (Character'Val (Character'Pos (Src (Ptr)) + 32), Csum);
- Ptr := Ptr + 1;
-
- -- Left bracket, really should do wide character thing here,
- -- but for now, don't bother.
+ null;
+ end Error_Msg;
- when '[' =>
- raise Bad;
+ -----------------
+ -- Error_Msg_S --
+ -----------------
- -- Minus, could be comment
-
- when '-' =>
- if Src (Ptr + 1) = '-' then
- Ptr := Ptr + 2;
-
- while Src (Ptr) >= ' ' or else Src (Ptr) = HT loop
- Ptr := Ptr + 1;
- end loop;
-
- else
- Accumulate_Checksum ('-', Csum);
- Ptr := Ptr + 1;
- end if;
-
- -- String delimited by double quote
-
- when '"' =>
- Accumulate_Checksum ('"', Csum);
-
- loop
- Ptr := Ptr + 1;
- exit when Src (Ptr) = '"';
-
- if Src (Ptr) < ' ' then
- raise Bad;
- end if;
-
- Accumulate_Checksum (Src (Ptr), Csum);
- end loop;
-
- Accumulate_Checksum ('"', Csum);
- Ptr := Ptr + 1;
-
- -- String delimited by percent
-
- when '%' =>
- Accumulate_Checksum ('%', Csum);
-
- loop
- Ptr := Ptr + 1;
- exit when Src (Ptr) = '%';
-
- if Src (Ptr) < ' ' then
- raise Bad;
- end if;
+ procedure Error_Msg_S (Msg : String) is
+ pragma Warnings (Off, Msg);
+ begin
+ null;
+ end Error_Msg_S;
- Accumulate_Checksum (Src (Ptr), Csum);
- end loop;
+ ------------------
+ -- Error_Msg_SC --
+ ------------------
- Accumulate_Checksum ('%', Csum);
- Ptr := Ptr + 1;
+ procedure Error_Msg_SC (Msg : String) is
+ pragma Warnings (Off, Msg);
+ begin
+ null;
+ end Error_Msg_SC;
- -- Quote, could be character constant
+ ------------------
+ -- Error_Msg_SP --
+ ------------------
- when ''' =>
- Accumulate_Checksum (''', Csum);
+ procedure Error_Msg_SP (Msg : String) is
+ pragma Warnings (Off, Msg);
+ begin
+ null;
+ end Error_Msg_SP;
- if Src (Ptr + 2) = ''' then
- Accumulate_Checksum (Src (Ptr + 1), Csum);
- Accumulate_Checksum (''', Csum);
- Ptr := Ptr + 3;
+ -----------------------
+ -- Get_File_Checksum --
+ -----------------------
- -- Otherwise assume attribute char. We should deal with wide
- -- character cases here, but that's hard, so forget it.
+ function Get_File_Checksum (Fname : File_Name_Type) return Word is
+ Full_Name : File_Name_Type;
+ Source_Index : Source_File_Index;
- else
- Ptr := Ptr + 1;
- end if;
+ begin
+ Full_Name := Find_File (Fname, Osint.Source);
- -- Upper half character, more to be done here, we should worry
- -- about folding Latin-1, folding other character sets, and
- -- dealing with the nasty case of upper half wide encoding.
+ -- If we cannot find the file, then return an impossible checksum,
+ -- impossible becaues checksums have the high order bit zero, so
+ -- that checksums do not match.
- when Upper_Half_Character =>
- Accumulate_Checksum (Src (Ptr), Csum);
- Ptr := Ptr + 1;
+ if Full_Name = No_File then
+ return Checksum_Error;
+ end if;
- -- Escape character, we should do the wide character thing here,
- -- but for now, do not bother.
+ Source_Index := Sinput.C.Load_File (Get_Name_String (Full_Name));
- when ESC =>
- raise Bad;
+ if Source_Index = No_Source_File then
+ return Checksum_Error;
+ end if;
- -- Invalid control characters
+ Scanner.Initialize_Scanner (Source_Index);
- when NUL | SOH | STX | ETX | EOT | ENQ | ACK | BEL | BS | SO |
- SI | DLE | DC1 | DC2 | DC3 | DC4 | NAK | SYN | ETB | CAN |
- EM | FS | GS | RS | US | DEL
- =>
- raise Bad;
+ -- Make sure that the project language reserved words are not
+ -- recognized as reserved words, but as identifiers. The byte info for
+ -- those names have been set if we are in gnatmake.
- -- Invalid graphic characters
+ Set_Name_Table_Byte (Name_Project, 0);
+ Set_Name_Table_Byte (Name_Extends, 0);
+ Set_Name_Table_Byte (Name_External, 0);
- when '$' | '?' | '@' | '`' | '\' |
- '^' | '~' | ']' | '{' | '}'
- =>
- raise Bad;
+ -- Scan the complete file to compute its checksum
- end case;
+ loop
+ Scanner.Scan;
+ exit when Token = Tok_EOF;
end loop;
- exception
- when Bad =>
- System.Memory.Free (Src.all'Address);
- return Checksum_Error;
+ return Scans.Checksum;
end Get_File_Checksum;
----------
Interfaces.Reset;
end Initialize_ALI_Source;
- -------------------------
- -- Initialize_Checksum --
- -------------------------
+ -----------------------
+ -- Obsolescent_Check --
+ -----------------------
+
+ procedure Obsolescent_Check (S : Source_Ptr) is
+ pragma Warnings (Off, S);
+ begin
+ null;
+ end Obsolescent_Check;
+
+ ---------------
+ -- Post_Scan --
+ ---------------
- procedure Initialize_Checksum (Csum : out Word) is
+ procedure Post_Scan is
begin
- System.CRC32.Initialize (System.CRC32.CRC32 (Csum));
- end Initialize_Checksum;
+ null;
+ end Post_Scan;
--------------
-- Read_ALI --
then
Text := Read_Library_Info (Afile);
- -- Return with an error if source cannot be found and if this
- -- is not a library generic (now we can, but does not have to
- -- compile library generics)
+ -- Return with an error if source cannot be found. We used to
+ -- skip this check when we did not compile library generics
+ -- separately, but we now always do, so there is no special
+ -- case here anymore.
if Text = null then
- if Generic_Separately_Compiled (Withs.Table (W).Sfile) then
- Error_Msg_Name_1 := Afile;
- Error_Msg_Name_2 := Withs.Table (W).Sfile;
- Error_Msg ("% not found, % must be compiled");
- Set_Name_Table_Info (Afile, Int (No_Unit_Id));
- return;
-
- else
- goto Skip_Library_Generics;
- end if;
+ Error_Msg_File_1 := Afile;
+ Error_Msg_File_2 := Withs.Table (W).Sfile;
+ Error_Msg ("{ not found, { must be compiled");
+ Set_Name_Table_Info (Afile, Int (No_Unit_Id));
+ return;
end if;
-- Enter in ALIs table
Scan_ALI
(F => Afile,
T => Text,
- Ignore_ED => Force_RM_Elaboration_Order,
+ Ignore_ED => False,
Err => False);
Free (Text);
if ALIs.Table (Idread).Compile_Errors then
- Error_Msg_Name_1 := Withs.Table (W).Sfile;
- Error_Msg ("% had errors, must be fixed, and recompiled");
+ Error_Msg_File_1 := Withs.Table (W).Sfile;
+ Error_Msg ("{ had errors, must be fixed, and recompiled");
Set_Name_Table_Info (Afile, Int (No_Unit_Id));
elsif ALIs.Table (Idread).No_Object then
- Error_Msg_Name_1 := Withs.Table (W).Sfile;
- Error_Msg ("% must be recompiled");
+ Error_Msg_File_1 := Withs.Table (W).Sfile;
+ Error_Msg ("{ must be recompiled");
Set_Name_Table_Info (Afile, Int (No_Unit_Id));
end if;
-- set the Interface flag in the Withs table, so that its
-- dependant are not considered for elaboration order.
- if ALIs.Table (Idread).Interface then
- Withs.Table (W).Interface := True;
+ if ALIs.Table (Idread).SAL_Interface then
+ Withs.Table (W).SAL_Interface := True;
Interface_Library_Unit := True;
-- Set the entry in the Interfaces hash table, so that other
Read_ALI (Idread);
end if;
- <<Skip_Library_Generics>> null;
-
-- If the ALI file has already been processed and is an interface,
-- set the flag in the entry of the Withs table.
elsif Interface_Library_Unit and then Interfaces.Get (Afile) then
- Withs.Table (W).Interface := True;
+ Withs.Table (W).SAL_Interface := True;
end if;
end loop;
end loop;
loop
F := Sdep.Table (D).Sfile;
- if F /= No_Name then
+ if F /= No_File then
-- If this is the first time we are seeing this source file,
-- then make a new entry in the source table.
-- In All_Sources mode, flag error of file not found
if Opt.All_Sources then
- Error_Msg_Name_1 := F;
- Error_Msg ("cannot locate %");
+ Error_Msg_File_1 := F;
+ Error_Msg ("cannot locate {");
end if;
end if;
function Time_Stamp_Mismatch
(A : ALI_Id;
- Read_Only : Boolean := False)
- return File_Name_Type
+ Read_Only : Boolean := False) return File_Name_Type
is
Src : Source_Id;
-- Source file Id for the current Sdep entry
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