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------------------------------------------------------------------------------ -- -- -- GNAT COMPILER COMPONENTS -- -- -- -- A L I -- -- -- -- B o d y -- -- -- -- Copyright (C) 1992-2011, 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. -- -- -- ------------------------------------------------------------------------------ with Butil; use Butil; with Debug; use Debug; with Fname; use Fname; with Opt; use Opt; with Osint; use Osint; with Output; use Output; package body ALI is use ASCII; -- Make control characters visible -- The following variable records which characters currently are -- used as line type markers in the ALI file. This is used in -- Scan_ALI to detect (or skip) invalid lines. Known_ALI_Lines : constant array (Character range 'A' .. 'Z') of Boolean := ('V' => True, -- version 'M' => True, -- main program 'A' => True, -- argument 'P' => True, -- program 'R' => True, -- restriction 'I' => True, -- interrupt 'U' => True, -- unit 'W' => True, -- with 'L' => True, -- linker option 'N' => True, -- notes 'E' => True, -- external 'D' => True, -- dependency 'X' => True, -- xref 'S' => True, -- specific dispatching 'Y' => True, -- limited_with 'C' => True, -- SCO information 'F' => True, -- Alfa information others => False); -------------------- -- Initialize_ALI -- -------------------- procedure Initialize_ALI is begin -- When (re)initializing ALI data structures the ALI user expects to -- get a fresh set of data structures. Thus we first need to erase the -- marks put in the name table by the previous set of ALI routine calls. -- These two loops are empty and harmless the first time in. for J in ALIs.First .. ALIs.Last loop Set_Name_Table_Info (ALIs.Table (J).Afile, 0); end loop; for J in Units.First .. Units.Last loop Set_Name_Table_Info (Units.Table (J).Uname, 0); end loop; -- Free argument table strings for J in Args.First .. Args.Last loop Free (Args.Table (J)); end loop; -- Initialize all tables ALIs.Init; No_Deps.Init; Units.Init; Withs.Init; Sdep.Init; Linker_Options.Init; Notes.Init; Xref_Section.Init; Xref_Entity.Init; Xref.Init; Version_Ref.Reset; -- Add dummy zero'th item in Linker_Options and Notes for sort calls Linker_Options.Increment_Last; Notes.Increment_Last; -- Initialize global variables recording cumulative options in all -- ALI files that are read for a given processing run in gnatbind. Dynamic_Elaboration_Checks_Specified := False; Float_Format_Specified := ' '; Locking_Policy_Specified := ' '; No_Normalize_Scalars_Specified := False; No_Object_Specified := False; Normalize_Scalars_Specified := False; Queuing_Policy_Specified := ' '; Static_Elaboration_Model_Used := False; Task_Dispatching_Policy_Specified := ' '; Unreserve_All_Interrupts_Specified := False; Zero_Cost_Exceptions_Specified := False; end Initialize_ALI; -------------- -- Scan_ALI -- -------------- function Scan_ALI (F : File_Name_Type; T : Text_Buffer_Ptr; Ignore_ED : Boolean; Err : Boolean; Read_Xref : Boolean := False; Read_Lines : String := ""; Ignore_Lines : String := "X"; Ignore_Errors : Boolean := False; Directly_Scanned : Boolean := False) return ALI_Id is P : Text_Ptr := T'First; Line : Logical_Line_Number := 1; Id : ALI_Id; C : Character; NS_Found : Boolean; First_Arg : Arg_Id; Ignore : array (Character range 'A' .. 'Z') of Boolean; -- Ignore (X) is set to True if lines starting with X are to -- be ignored by Scan_ALI and skipped, and False if the lines -- are to be read and processed. Bad_ALI_Format : exception; -- Exception raised by Fatal_Error if Err is True function At_Eol return Boolean; -- Test if at end of line function At_End_Of_Field return Boolean; -- Test if at end of line, or if at blank or horizontal tab procedure Check_At_End_Of_Field; -- Check if we are at end of field, fatal error if not procedure Checkc (C : Character); -- Check next character is C. If so bump past it, if not fatal error procedure Check_Unknown_Line; -- If Ignore_Errors mode, then checks C to make sure that it is not -- an unknown ALI line type characters, and if so, skips lines -- until the first character of the line is one of these characters, -- at which point it does a Getc to put that character in C. The -- call has no effect if C is already an appropriate character. -- If not in Ignore_Errors mode, a fatal error is signalled if the -- line is unknown. Note that if C is an EOL on entry, the line is -- skipped (it is assumed that blank lines are never significant). -- If C is EOF on entry, the call has no effect (it is assumed that -- the caller will properly handle this case). procedure Fatal_Error; -- Generate fatal error message for badly formatted ALI file if -- Err is false, or raise Bad_ALI_Format if Err is True. procedure Fatal_Error_Ignore; pragma Inline (Fatal_Error_Ignore); -- In Ignore_Errors mode, has no effect, otherwise same as Fatal_Error function Getc return Character; -- Get next character, bumping P past the character obtained function Get_File_Name (Lower : Boolean := False) return File_Name_Type; -- Skip blanks, then scan out a file name (name is left in Name_Buffer -- with length in Name_Len, as well as returning a File_Name_Type value. -- If lower is false, the case is unchanged, if Lower is True then the -- result is forced to all lower case for systems where file names are -- not case sensitive. This ensures that gnatbind works correctly -- regardless of the case of the file name on all systems. The scan -- is terminated by a end of line, space or horizontal tab. Any other -- special characters are included in the returned name. function Get_Name (Ignore_Spaces : Boolean := False; Ignore_Special : Boolean := False) return Name_Id; -- Skip blanks, then scan out a name (name is left in Name_Buffer with -- length in Name_Len, as well as being returned in Name_Id form). -- If Lower is set to True then the Name_Buffer will be converted to -- all lower case, for systems where file names are not case sensitive. -- This ensures that gnatbind works correctly regardless of the case -- of the file name on all systems. The termination condition depends -- on the settings of Ignore_Spaces and Ignore_Special: -- -- If Ignore_Spaces is False (normal case), then scan is terminated -- by the normal end of field condition (EOL, space, horizontal tab) -- -- If Ignore_Special is False (normal case), the scan is terminated by -- a typeref bracket or an equal sign except for the special case of -- an operator name starting with a double quote which is terminated -- by another double quote. -- -- It is an error to set both Ignore_Spaces and Ignore_Special to True. -- This function handles wide characters properly. function Get_Nat return Nat; -- Skip blanks, then scan out an unsigned integer value in Nat range -- raises ALI_Reading_Error if the encoutered type is not natural. function Get_Stamp return Time_Stamp_Type; -- Skip blanks, then scan out a time stamp function Get_Unit_Name return Unit_Name_Type; -- Skip blanks, then scan out a file name (name is left in Name_Buffer -- with length in Name_Len, as well as returning a Unit_Name_Type value. -- The case is unchanged and terminated by a normal end of field. function Nextc return Character; -- Return current character without modifying pointer P procedure Get_Typeref (Current_File_Num : Sdep_Id; Ref : out Tref_Kind; File_Num : out Sdep_Id; Line : out Nat; Ref_Type : out Character; Col : out Nat; Standard_Entity : out Name_Id); -- Parse the definition of a typeref (<...>, {...} or (...)) procedure Skip_Eol; -- Skip past spaces, then skip past end of line (fatal error if not -- at end of line). Also skips past any following blank lines. procedure Skip_Line; -- Skip rest of current line and any following blank lines procedure Skip_Space; -- Skip past white space (blanks or horizontal tab) procedure Skipc; -- Skip past next character, does not affect value in C. This call -- is like calling Getc and ignoring the returned result. --------------------- -- At_End_Of_Field -- --------------------- function At_End_Of_Field return Boolean is begin return Nextc <= ' '; end At_End_Of_Field; ------------ -- At_Eol -- ------------ function At_Eol return Boolean is begin return Nextc = EOF or else Nextc = CR or else Nextc = LF; end At_Eol; --------------------------- -- Check_At_End_Of_Field -- --------------------------- procedure Check_At_End_Of_Field is begin if not At_End_Of_Field then if Ignore_Errors then while Nextc > ' ' loop P := P + 1; end loop; else Fatal_Error; end if; end if; end Check_At_End_Of_Field; ------------------------ -- Check_Unknown_Line -- ------------------------ procedure Check_Unknown_Line is begin while C not in 'A' .. 'Z' or else not Known_ALI_Lines (C) loop if C = CR or else C = LF then Skip_Line; C := Nextc; elsif C = EOF then return; elsif Ignore_Errors then Skip_Line; C := Getc; else Fatal_Error; end if; end loop; end Check_Unknown_Line; ------------ -- Checkc -- ------------ procedure Checkc (C : Character) is begin if Nextc = C then P := P + 1; elsif Ignore_Errors then P := P + 1; else Fatal_Error; end if; end Checkc; ----------------- -- Fatal_Error -- ----------------- procedure Fatal_Error is Ptr1 : Text_Ptr; Ptr2 : Text_Ptr; Col : Int; procedure Wchar (C : Character); -- Write a single character, replacing horizontal tab by spaces procedure Wchar (C : Character) is begin if C = HT then loop Wchar (' '); exit when Col mod 8 = 0; end loop; else Write_Char (C); Col := Col + 1; end if; end Wchar; -- Start of processing for Fatal_Error begin if Err then raise Bad_ALI_Format; end if; Set_Standard_Error; Write_Str ("fatal error: file "); Write_Name (F); Write_Str (" is incorrectly formatted"); Write_Eol; Write_Str ("make sure you are using consistent versions " & -- Split the following line so that it can easily be transformed for -- e.g. JVM/.NET back-ends where the compiler has a different name. "of gcc/gnatbind"); Write_Eol; -- Find start of line Ptr1 := P; while Ptr1 > T'First and then T (Ptr1 - 1) /= CR and then T (Ptr1 - 1) /= LF loop Ptr1 := Ptr1 - 1; end loop; Write_Int (Int (Line)); Write_Str (". "); if Line < 100 then Write_Char (' '); end if; if Line < 10 then Write_Char (' '); end if; Col := 0; Ptr2 := Ptr1; while Ptr2 < T'Last and then T (Ptr2) /= CR and then T (Ptr2) /= LF loop Wchar (T (Ptr2)); Ptr2 := Ptr2 + 1; end loop; Write_Eol; Write_Str (" "); Col := 0; while Ptr1 < P loop if T (Ptr1) = HT then Wchar (HT); else Wchar (' '); end if; Ptr1 := Ptr1 + 1; end loop; Wchar ('|'); Write_Eol; Exit_Program (E_Fatal); end Fatal_Error; ------------------------ -- Fatal_Error_Ignore -- ------------------------ procedure Fatal_Error_Ignore is begin if not Ignore_Errors then Fatal_Error; end if; end Fatal_Error_Ignore; ------------------- -- Get_File_Name -- ------------------- function Get_File_Name (Lower : Boolean := False) return File_Name_Type is F : Name_Id; begin F := Get_Name (Ignore_Special => True); -- Convert file name to all lower case if file names are not case -- sensitive. This ensures that we handle names in the canonical -- lower case format, regardless of the actual case. if Lower and not File_Names_Case_Sensitive then Canonical_Case_File_Name (Name_Buffer (1 .. Name_Len)); return Name_Find; else return File_Name_Type (F); end if; end Get_File_Name; -------------- -- Get_Name -- -------------- function Get_Name (Ignore_Spaces : Boolean := False; Ignore_Special : Boolean := False) return Name_Id is begin Name_Len := 0; Skip_Space; if At_Eol then if Ignore_Errors then return Error_Name; else Fatal_Error; end if; end if; loop Add_Char_To_Name_Buffer (Getc); exit when At_End_Of_Field and then not Ignore_Spaces; if not Ignore_Special then if Name_Buffer (1) = '"' then exit when Name_Len > 1 and then Name_Buffer (Name_Len) = '"'; else -- Terminate on parens or angle brackets or equal sign exit when Nextc = '(' or else Nextc = ')' or else Nextc = '{' or else Nextc = '}' or else Nextc = '<' or else Nextc = '>' or else Nextc = '='; -- Terminate on comma exit when Nextc = ','; -- Terminate if left bracket not part of wide char sequence -- Note that we only recognize brackets notation so far ??? exit when Nextc = '[' and then T (P + 1) /= '"'; -- Terminate if right bracket not part of wide char sequence exit when Nextc = ']' and then T (P - 1) /= '"'; end if; end if; end loop; return Name_Find; end Get_Name; ------------------- -- Get_Unit_Name -- ------------------- function Get_Unit_Name return Unit_Name_Type is begin return Unit_Name_Type (Get_Name); end Get_Unit_Name; ------------- -- Get_Nat -- ------------- function Get_Nat return Nat is V : Nat; begin Skip_Space; -- Check if we are on a number. In the case of bad ALI files, this -- may not be true. if not (Nextc in '0' .. '9') then Fatal_Error; end if; V := 0; loop V := V * 10 + (Character'Pos (Getc) - Character'Pos ('0')); exit when At_End_Of_Field; exit when Nextc < '0' or else Nextc > '9'; end loop; return V; end Get_Nat; --------------- -- Get_Stamp -- --------------- function Get_Stamp return Time_Stamp_Type is T : Time_Stamp_Type; Start : Integer; begin Skip_Space; if At_Eol then if Ignore_Errors then return Dummy_Time_Stamp; else Fatal_Error; end if; end if; -- Following reads old style time stamp missing first two digits if Nextc in '7' .. '9' then T (1) := '1'; T (2) := '9'; Start := 3; -- Normal case of full year in time stamp else Start := 1; end if; for J in Start .. T'Last loop T (J) := Getc; end loop; return T; end Get_Stamp; ----------------- -- Get_Typeref -- ----------------- procedure Get_Typeref (Current_File_Num : Sdep_Id; Ref : out Tref_Kind; File_Num : out Sdep_Id; Line : out Nat; Ref_Type : out Character; Col : out Nat; Standard_Entity : out Name_Id) is N : Nat; begin case Nextc is when '<' => Ref := Tref_Derived; when '(' => Ref := Tref_Access; when '{' => Ref := Tref_Type; when others => Ref := Tref_None; end case; -- Case of typeref field present if Ref /= Tref_None then P := P + 1; -- skip opening bracket if Nextc in 'a' .. 'z' then File_Num := No_Sdep_Id; Line := 0; Ref_Type := ' '; Col := 0; Standard_Entity := Get_Name (Ignore_Spaces => True); else N := Get_Nat; if Nextc = '|' then File_Num := Sdep_Id (N + Nat (First_Sdep_Entry) - 1); P := P + 1; N := Get_Nat; else File_Num := Current_File_Num; end if; Line := N; Ref_Type := Getc; Col := Get_Nat; Standard_Entity := No_Name; end if; -- ??? Temporary workaround for nested generics case: -- 4i4 Directories{1|4I9[4|6[3|3]]} -- See C918-002 declare Nested_Brackets : Natural := 0; begin loop case Nextc is when '[' => Nested_Brackets := Nested_Brackets + 1; when ']' => Nested_Brackets := Nested_Brackets - 1; when others => if Nested_Brackets = 0 then exit; end if; end case; Skipc; end loop; end; P := P + 1; -- skip closing bracket Skip_Space; -- No typeref entry present else File_Num := No_Sdep_Id; Line := 0; Ref_Type := ' '; Col := 0; Standard_Entity := No_Name; end if; end Get_Typeref; ---------- -- Getc -- ---------- function Getc return Character is begin if P = T'Last then return EOF; else P := P + 1; return T (P - 1); end if; end Getc; ----------- -- Nextc -- ----------- function Nextc return Character is begin return T (P); end Nextc; -------------- -- Skip_Eol -- -------------- procedure Skip_Eol is begin Skip_Space; if not At_Eol then if Ignore_Errors then while not At_Eol loop P := P + 1; end loop; else Fatal_Error; end if; end if; -- Loop to skip past blank lines (first time through skips this EOL) while Nextc < ' ' and then Nextc /= EOF loop if Nextc = LF then Line := Line + 1; end if; P := P + 1; end loop; end Skip_Eol; --------------- -- Skip_Line -- --------------- procedure Skip_Line is begin while not At_Eol loop P := P + 1; end loop; Skip_Eol; end Skip_Line; ---------------- -- Skip_Space -- ---------------- procedure Skip_Space is begin while Nextc = ' ' or else Nextc = HT loop P := P + 1; end loop; end Skip_Space; ----------- -- Skipc -- ----------- procedure Skipc is begin if P /= T'Last then P := P + 1; end if; end Skipc; -- Start of processing for Scan_ALI begin First_Sdep_Entry := Sdep.Last + 1; -- Acquire lines to be ignored if Read_Xref then Ignore := ('U' | 'W' | 'Y' | 'D' | 'X' => False, others => True); -- Read_Lines parameter given elsif Read_Lines /= "" then Ignore := ('U' => False, others => True); for J in Read_Lines'Range loop Ignore (Read_Lines (J)) := False; end loop; -- Process Ignore_Lines parameter else Ignore := (others => False); for J in Ignore_Lines'Range loop pragma Assert (Ignore_Lines (J) /= 'U'); Ignore (Ignore_Lines (J)) := True; end loop; end if; -- Setup ALI Table entry with appropriate defaults ALIs.Increment_Last; Id := ALIs.Last; Set_Name_Table_Info (F, Int (Id)); ALIs.Table (Id) := ( Afile => F, Compile_Errors => False, First_Interrupt_State => Interrupt_States.Last + 1, First_Sdep => No_Sdep_Id, First_Specific_Dispatching => Specific_Dispatching.Last + 1, First_Unit => No_Unit_Id, Float_Format => 'I', Last_Interrupt_State => Interrupt_States.Last, Last_Sdep => No_Sdep_Id, Last_Specific_Dispatching => Specific_Dispatching.Last, Last_Unit => No_Unit_Id, Locking_Policy => ' ', Main_Priority => -1, Main_CPU => -1, Main_Program => None, No_Object => False, Normalize_Scalars => False, Ofile_Full_Name => Full_Object_File_Name, Queuing_Policy => ' ', Restrictions => No_Restrictions, SAL_Interface => False, Sfile => No_File, Task_Dispatching_Policy => ' ', Time_Slice_Value => -1, Allocator_In_Body => False, WC_Encoding => 'b', Unit_Exception_Table => False, Ver => (others => ' '), Ver_Len => 0, Zero_Cost_Exceptions => False); -- Now we acquire the input lines from the ALI file. Note that the -- convention in the following code is that as we enter each section, -- C is set to contain the first character of the following line. C := Getc; Check_Unknown_Line; -- Acquire library version if C /= 'V' then -- The V line missing really indicates trouble, most likely it -- means we don't have an ALI file at all, so here we give a -- fatal error even if we are in Ignore_Errors mode. Fatal_Error; elsif Ignore ('V') then Skip_Line; else Checkc (' '); Skip_Space; Checkc ('"'); for J in 1 .. Ver_Len_Max loop C := Getc; exit when C = '"'; ALIs.Table (Id).Ver (J) := C; ALIs.Table (Id).Ver_Len := J; end loop; Skip_Eol; end if; C := Getc; Check_Unknown_Line; -- Acquire main program line if present if C = 'M' then if Ignore ('M') then Skip_Line; else Checkc (' '); Skip_Space; C := Getc; if C = 'F' then ALIs.Table (Id).Main_Program := Func; elsif C = 'P' then ALIs.Table (Id).Main_Program := Proc; else P := P - 1; Fatal_Error; end if; Skip_Space; if not At_Eol then if Nextc < 'A' then ALIs.Table (Id).Main_Priority := Get_Nat; end if; Skip_Space; if Nextc = 'T' then P := P + 1; Checkc ('='); ALIs.Table (Id).Time_Slice_Value := Get_Nat; end if; Skip_Space; if Nextc = 'A' then P := P + 1; Checkc ('B'); ALIs.Table (Id).Allocator_In_Body := True; end if; Skip_Space; if Nextc = 'C' then P := P + 1; Checkc ('='); ALIs.Table (Id).Main_CPU := Get_Nat; end if; Skip_Space; Checkc ('W'); Checkc ('='); ALIs.Table (Id).WC_Encoding := Getc; end if; Skip_Eol; end if; C := Getc; end if; -- Acquire argument lines First_Arg := Args.Last + 1; A_Loop : loop Check_Unknown_Line; exit A_Loop when C /= 'A'; if Ignore ('A') then Skip_Line; else Checkc (' '); -- Scan out argument Name_Len := 0; while not At_Eol loop Add_Char_To_Name_Buffer (Getc); end loop; -- If -fstack-check, record that it occurred if Name_Buffer (1 .. Name_Len) = "-fstack-check" then Stack_Check_Switch_Set := True; end if; -- Store the argument Args.Increment_Last; Args.Table (Args.Last) := new String'(Name_Buffer (1 .. Name_Len)); Skip_Eol; end if; C := Getc; end loop A_Loop; -- Acquire P line Check_Unknown_Line; while C /= 'P' loop if Ignore_Errors then if C = EOF then Fatal_Error; else Skip_Line; C := Nextc; end if; else Fatal_Error; end if; end loop; if Ignore ('P') then Skip_Line; -- Process P line else NS_Found := False; while not At_Eol loop Checkc (' '); Skip_Space; C := Getc; -- Processing for CE if C = 'C' then Checkc ('E'); ALIs.Table (Id).Compile_Errors := True; -- Processing for DB elsif C = 'D' then Checkc ('B'); Detect_Blocking := True; -- Processing for FD/FG/FI elsif C = 'F' then Float_Format_Specified := Getc; ALIs.Table (Id).Float_Format := Float_Format_Specified; -- Processing for Lx elsif C = 'L' then Locking_Policy_Specified := Getc; ALIs.Table (Id).Locking_Policy := Locking_Policy_Specified; -- Processing for flags starting with N elsif C = 'N' then C := Getc; -- Processing for NO if C = 'O' then ALIs.Table (Id).No_Object := True; No_Object_Specified := True; -- Processing for NR elsif C = 'R' then No_Run_Time_Mode := True; Configurable_Run_Time_Mode := True; -- Processing for NS elsif C = 'S' then ALIs.Table (Id).Normalize_Scalars := True; Normalize_Scalars_Specified := True; NS_Found := True; -- Invalid switch starting with N else Fatal_Error_Ignore; end if; -- Processing for Qx elsif C = 'Q' then Queuing_Policy_Specified := Getc; ALIs.Table (Id).Queuing_Policy := Queuing_Policy_Specified; -- Processing for flags starting with S elsif C = 'S' then C := Getc; -- Processing for SL if C = 'L' then ALIs.Table (Id).SAL_Interface := True; -- Processing for SS elsif C = 'S' then Opt.Sec_Stack_Used := True; -- Invalid switch starting with S else Fatal_Error_Ignore; end if; -- Processing for Tx elsif C = 'T' then Task_Dispatching_Policy_Specified := Getc; ALIs.Table (Id).Task_Dispatching_Policy := Task_Dispatching_Policy_Specified; -- Processing for switch starting with U elsif C = 'U' then C := Getc; -- Processing for UA if C = 'A' then Unreserve_All_Interrupts_Specified := True; -- Processing for UX elsif C = 'X' then ALIs.Table (Id).Unit_Exception_Table := True; -- Invalid switches starting with U else Fatal_Error_Ignore; end if; -- Processing for ZX elsif C = 'Z' then C := Getc; if C = 'X' then ALIs.Table (Id).Zero_Cost_Exceptions := True; Zero_Cost_Exceptions_Specified := True; else Fatal_Error_Ignore; end if; -- Invalid parameter else C := Getc; Fatal_Error_Ignore; end if; end loop; if not NS_Found then No_Normalize_Scalars_Specified := True; end if; Skip_Eol; end if; C := Getc; Check_Unknown_Line; -- Acquire first restrictions line while C /= 'R' loop if Ignore_Errors then if C = EOF then Fatal_Error; else Skip_Line; C := Nextc; end if; else Fatal_Error; end if; end loop; if Ignore ('R') then Skip_Line; -- Process restrictions line else Scan_Restrictions : declare Save_R : constant Restrictions_Info := Cumulative_Restrictions; -- Save cumulative restrictions in case we have a fatal error Bad_R_Line : exception; -- Signal bad restrictions line (raised on unexpected character) begin Checkc (' '); Skip_Space; -- Acquire information for boolean restrictions for R in All_Boolean_Restrictions loop C := Getc; case C is when 'v' => ALIs.Table (Id).Restrictions.Violated (R) := True; Cumulative_Restrictions.Violated (R) := True; when 'r' => ALIs.Table (Id).Restrictions.Set (R) := True; Cumulative_Restrictions.Set (R) := True; when 'n' => null; when others => raise Bad_R_Line; end case; end loop; -- Acquire information for parameter restrictions for RP in All_Parameter_Restrictions loop -- Acquire restrictions pragma information case Getc is when 'n' => null; when 'r' => ALIs.Table (Id).Restrictions.Set (RP) := True; declare N : constant Integer := Integer (Get_Nat); begin ALIs.Table (Id).Restrictions.Value (RP) := N; if Cumulative_Restrictions.Set (RP) then Cumulative_Restrictions.Value (RP) := Integer'Min (Cumulative_Restrictions.Value (RP), N); else Cumulative_Restrictions.Set (RP) := True; Cumulative_Restrictions.Value (RP) := N; end if; end; when others => raise Bad_R_Line; end case; -- Acquire restrictions violations information case Getc is when 'n' => null; when 'v' => ALIs.Table (Id).Restrictions.Violated (RP) := True; Cumulative_Restrictions.Violated (RP) := True; declare N : constant Integer := Integer (Get_Nat); pragma Unsuppress (Overflow_Check); begin ALIs.Table (Id).Restrictions.Count (RP) := N; if RP in Checked_Max_Parameter_Restrictions then Cumulative_Restrictions.Count (RP) := Integer'Max (Cumulative_Restrictions.Count (RP), N); else Cumulative_Restrictions.Count (RP) := Cumulative_Restrictions.Count (RP) + N; end if; exception when Constraint_Error => -- A constraint error comes from the addition in -- the else branch. We reset to the maximum and -- indicate that the real value is now unknown. Cumulative_Restrictions.Value (RP) := Integer'Last; Cumulative_Restrictions.Unknown (RP) := True; end; if Nextc = '+' then Skipc; ALIs.Table (Id).Restrictions.Unknown (RP) := True; Cumulative_Restrictions.Unknown (RP) := True; end if; when others => raise Bad_R_Line; end case; end loop; Skip_Eol; -- Here if error during scanning of restrictions line exception when Bad_R_Line => -- In Ignore_Errors mode, undo any changes to restrictions -- from this unit, and continue on. if Ignore_Errors then Cumulative_Restrictions := Save_R; ALIs.Table (Id).Restrictions := No_Restrictions; Skip_Eol; -- In normal mode, this is a fatal error else Fatal_Error; end if; end Scan_Restrictions; end if; -- Acquire additional restrictions (No_Dependence) lines if present C := Getc; while C = 'R' loop if Ignore ('R') then Skip_Line; else Skip_Space; No_Deps.Append ((Id, Get_Name)); Skip_Eol; end if; C := Getc; end loop; -- Acquire 'I' lines if present Check_Unknown_Line; while C = 'I' loop if Ignore ('I') then Skip_Line; else declare Int_Num : Nat; I_State : Character; Line_No : Nat; begin Int_Num := Get_Nat; Skip_Space; I_State := Getc; Line_No := Get_Nat; Interrupt_States.Append ( (Interrupt_Id => Int_Num, Interrupt_State => I_State, IS_Pragma_Line => Line_No)); ALIs.Table (Id).Last_Interrupt_State := Interrupt_States.Last; Skip_Eol; end; end if; C := Getc; end loop; -- Acquire 'S' lines if present Check_Unknown_Line; while C = 'S' loop if Ignore ('S') then Skip_Line; else declare Policy : Character; First_Prio : Nat; Last_Prio : Nat; Line_No : Nat; begin Checkc (' '); Skip_Space; Policy := Getc; Skip_Space; First_Prio := Get_Nat; Last_Prio := Get_Nat; Line_No := Get_Nat; Specific_Dispatching.Append ( (Dispatching_Policy => Policy, First_Priority => First_Prio, Last_Priority => Last_Prio, PSD_Pragma_Line => Line_No)); ALIs.Table (Id).Last_Specific_Dispatching := Specific_Dispatching.Last; Skip_Eol; end; end if; C := Getc; end loop; -- Loop to acquire unit entries U_Loop : loop Check_Unknown_Line; exit U_Loop when C /= 'U'; -- Note: as per spec, we never ignore U lines Checkc (' '); Skip_Space; Units.Increment_Last; if ALIs.Table (Id).First_Unit = No_Unit_Id then ALIs.Table (Id).First_Unit := Units.Last; end if; declare UL : Unit_Record renames Units.Table (Units.Last); begin UL.Uname := Get_Unit_Name; UL.Predefined := Is_Predefined_Unit; UL.Internal := Is_Internal_Unit; UL.My_ALI := Id; UL.Sfile := Get_File_Name (Lower => True); UL.Pure := False; UL.Preelab := False; UL.No_Elab := False; UL.Shared_Passive := False; UL.RCI := False; UL.Remote_Types := False; UL.Has_RACW := False; UL.Init_Scalars := False; UL.Is_Generic := False; UL.Icasing := Mixed_Case; UL.Kcasing := All_Lower_Case; UL.Dynamic_Elab := False; UL.Elaborate_Body := False; UL.Set_Elab_Entity := False; UL.Version := "00000000"; UL.First_With := Withs.Last + 1; UL.First_Arg := First_Arg; UL.Elab_Position := 0; UL.SAL_Interface := ALIs.Table (Id).SAL_Interface; UL.Directly_Scanned := Directly_Scanned; UL.Body_Needed_For_SAL := False; UL.Elaborate_Body_Desirable := False; UL.Optimize_Alignment := 'O'; UL.Has_Finalizer := False; if Debug_Flag_U then Write_Str (" ----> reading unit "); Write_Int (Int (Units.Last)); Write_Str (" "); Write_Unit_Name (UL.Uname); Write_Str (" from file "); Write_Name (UL.Sfile); Write_Eol; end if; end; -- Check for duplicated unit in different files declare Info : constant Int := Get_Name_Table_Info (Units.Table (Units.Last).Uname); begin if Info /= 0 and then Units.Table (Units.Last).Sfile /= Units.Table (Unit_Id (Info)).Sfile then -- If Err is set then ignore duplicate unit name. This is the -- case of a call from gnatmake, where the situation can arise -- from substitution of source files. In such situations, the -- processing in gnatmake will always result in any required -- recompilations in any case, and if we consider this to be -- an error we get strange cases (for example when a generic -- instantiation is replaced by a normal package) where we -- read the old ali file, decide to recompile, and then decide -- that the old and new ali files are incompatible. if Err then null; -- If Err is not set, then this is a fatal error. This is -- the case of being called from the binder, where we must -- definitely diagnose this as an error. else Set_Standard_Error; Write_Str ("error: duplicate unit name: "); Write_Eol; Write_Str ("error: unit """); Write_Unit_Name (Units.Table (Units.Last).Uname); Write_Str (""" found in file """); Write_Name_Decoded (Units.Table (Units.Last).Sfile); Write_Char ('"'); Write_Eol; Write_Str ("error: unit """); Write_Unit_Name (Units.Table (Unit_Id (Info)).Uname); Write_Str (""" found in file """); Write_Name_Decoded (Units.Table (Unit_Id (Info)).Sfile); Write_Char ('"'); Write_Eol; Exit_Program (E_Fatal); end if; end if; end; Set_Name_Table_Info (Units.Table (Units.Last).Uname, Int (Units.Last)); -- Scan out possible version and other parameters loop Skip_Space; exit when At_Eol; C := Getc; -- Version field if C in '0' .. '9' or else C in 'a' .. 'f' then Units.Table (Units.Last).Version (1) := C; for J in 2 .. 8 loop C := Getc; Units.Table (Units.Last).Version (J) := C; end loop; -- BD/BN parameters elsif C = 'B' then C := Getc; if C = 'D' then Check_At_End_Of_Field; Units.Table (Units.Last).Elaborate_Body_Desirable := True; elsif C = 'N' then Check_At_End_Of_Field; Units.Table (Units.Last).Body_Needed_For_SAL := True; else Fatal_Error_Ignore; end if; -- DE parameter (Dynamic elaboration checks) elsif C = 'D' then C := Getc; if C = 'E' then Check_At_End_Of_Field; Units.Table (Units.Last).Dynamic_Elab := True; Dynamic_Elaboration_Checks_Specified := True; else Fatal_Error_Ignore; end if; -- EB/EE parameters elsif C = 'E' then C := Getc; if C = 'B' then Units.Table (Units.Last).Elaborate_Body := True; elsif C = 'E' then Units.Table (Units.Last).Set_Elab_Entity := True; else Fatal_Error_Ignore; end if; Check_At_End_Of_Field; -- GE parameter (generic) elsif C = 'G' then C := Getc; if C = 'E' then Check_At_End_Of_Field; Units.Table (Units.Last).Is_Generic := True; else Fatal_Error_Ignore; end if; -- IL/IS/IU parameters elsif C = 'I' then C := Getc; if C = 'L' then Units.Table (Units.Last).Icasing := All_Lower_Case; elsif C = 'S' then Units.Table (Units.Last).Init_Scalars := True; Initialize_Scalars_Used := True; elsif C = 'U' then Units.Table (Units.Last).Icasing := All_Upper_Case; else Fatal_Error_Ignore; end if; Check_At_End_Of_Field; -- KM/KU parameters elsif C = 'K' then C := Getc; if C = 'M' then Units.Table (Units.Last).Kcasing := Mixed_Case; elsif C = 'U' then Units.Table (Units.Last).Kcasing := All_Upper_Case; else Fatal_Error_Ignore; end if; Check_At_End_Of_Field; -- NE parameter elsif C = 'N' then C := Getc; if C = 'E' then Units.Table (Units.Last).No_Elab := True; Check_At_End_Of_Field; else Fatal_Error_Ignore; end if; -- PF/PR/PU/PK parameters elsif C = 'P' then C := Getc; if C = 'F' then Units.Table (Units.Last).Has_Finalizer := True; elsif C = 'R' then Units.Table (Units.Last).Preelab := True; elsif C = 'U' then Units.Table (Units.Last).Pure := True; elsif C = 'K' then Units.Table (Units.Last).Unit_Kind := 'p'; else Fatal_Error_Ignore; end if; Check_At_End_Of_Field; -- OL/OO/OS/OT parameters elsif C = 'O' then C := Getc; if C = 'L' or else C = 'O' or else C = 'S' or else C = 'T' then Units.Table (Units.Last).Optimize_Alignment := C; else Fatal_Error_Ignore; end if; Check_At_End_Of_Field; -- RC/RT parameters elsif C = 'R' then C := Getc; if C = 'C' then Units.Table (Units.Last).RCI := True; elsif C = 'T' then Units.Table (Units.Last).Remote_Types := True; elsif C = 'A' then Units.Table (Units.Last).Has_RACW := True; else Fatal_Error_Ignore; end if; Check_At_End_Of_Field; elsif C = 'S' then C := Getc; if C = 'P' then Units.Table (Units.Last).Shared_Passive := True; elsif C = 'U' then Units.Table (Units.Last).Unit_Kind := 's'; else Fatal_Error_Ignore; end if; Check_At_End_Of_Field; else C := Getc; Fatal_Error_Ignore; end if; end loop; Skip_Eol; -- Check if static elaboration model used if not Units.Table (Units.Last).Dynamic_Elab and then not Units.Table (Units.Last).Internal then Static_Elaboration_Model_Used := True; end if; C := Getc; -- Scan out With lines for this unit With_Loop : loop Check_Unknown_Line; exit With_Loop when C /= 'W' and then C /= 'Y'; if Ignore ('W') then Skip_Line; else Checkc (' '); Skip_Space; Withs.Increment_Last; Withs.Table (Withs.Last).Uname := Get_Unit_Name; Withs.Table (Withs.Last).Elaborate := False; Withs.Table (Withs.Last).Elaborate_All := False; Withs.Table (Withs.Last).Elab_Desirable := False; Withs.Table (Withs.Last).Elab_All_Desirable := False; Withs.Table (Withs.Last).SAL_Interface := False; Withs.Table (Withs.Last).Limited_With := (C = 'Y'); -- Generic case with no object file available if At_Eol then Withs.Table (Withs.Last).Sfile := No_File; Withs.Table (Withs.Last).Afile := No_File; -- Normal case else Withs.Table (Withs.Last).Sfile := Get_File_Name (Lower => True); Withs.Table (Withs.Last).Afile := Get_File_Name (Lower => True); -- Scan out possible E, EA, ED, and AD parameters while not At_Eol loop Skip_Space; if Nextc = 'A' then P := P + 1; Checkc ('D'); Check_At_End_Of_Field; -- Store AD indication unless ignore required if not Ignore_ED then Withs.Table (Withs.Last).Elab_All_Desirable := True; end if; elsif Nextc = 'E' then P := P + 1; if At_End_Of_Field then Withs.Table (Withs.Last).Elaborate := True; elsif Nextc = 'A' then P := P + 1; Check_At_End_Of_Field; Withs.Table (Withs.Last).Elaborate_All := True; else Checkc ('D'); Check_At_End_Of_Field; -- Store ED indication unless ignore required if not Ignore_ED then Withs.Table (Withs.Last).Elab_Desirable := True; end if; end if; else Fatal_Error; end if; end loop; end if; Skip_Eol; end if; C := Getc; end loop With_Loop; Units.Table (Units.Last).Last_With := Withs.Last; Units.Table (Units.Last).Last_Arg := Args.Last; -- If there are linker options lines present, scan them Name_Len := 0; Linker_Options_Loop : loop Check_Unknown_Line; exit Linker_Options_Loop when C /= 'L'; if Ignore ('L') then Skip_Line; else Checkc (' '); Skip_Space; Checkc ('"'); loop C := Getc; if C < Character'Val (16#20#) or else C > Character'Val (16#7E#) then Fatal_Error_Ignore; elsif C = '{' then C := Character'Val (0); declare V : Natural; begin V := 0; for J in 1 .. 2 loop C := Getc; if C in '0' .. '9' then V := V * 16 + Character'Pos (C) - Character'Pos ('0'); elsif C in 'A' .. 'F' then V := V * 16 + Character'Pos (C) - Character'Pos ('A') + 10; else Fatal_Error_Ignore; end if; end loop; Checkc ('}'); Add_Char_To_Name_Buffer (Character'Val (V)); end; else if C = '"' then exit when Nextc /= '"'; C := Getc; end if; Add_Char_To_Name_Buffer (C); end if; end loop; Add_Char_To_Name_Buffer (NUL); Skip_Eol; end if; C := Getc; end loop Linker_Options_Loop; -- Store the linker options entry if one was found if Name_Len /= 0 then Linker_Options.Increment_Last; Linker_Options.Table (Linker_Options.Last).Name := Name_Enter; Linker_Options.Table (Linker_Options.Last).Unit := Units.Last; Linker_Options.Table (Linker_Options.Last).Internal_File := Is_Internal_File_Name (F); Linker_Options.Table (Linker_Options.Last).Original_Pos := Linker_Options.Last; end if; -- If there are notes present, scan them Notes_Loop : loop Check_Unknown_Line; exit Notes_Loop when C /= 'N'; if Ignore ('N') then Skip_Line; else Checkc (' '); Notes.Increment_Last; Notes.Table (Notes.Last).Pragma_Type := Getc; Notes.Table (Notes.Last).Pragma_Line := Get_Nat; Checkc (':'); Notes.Table (Notes.Last).Pragma_Col := Get_Nat; Notes.Table (Notes.Last).Unit := Units.Last; if At_Eol then Notes.Table (Notes.Last).Pragma_Args := No_Name; else Checkc (' '); Name_Len := 0; while not At_Eol loop Add_Char_To_Name_Buffer (Getc); end loop; Notes.Table (Notes.Last).Pragma_Args := Name_Enter; end if; Skip_Eol; end if; C := Getc; end loop Notes_Loop; end loop U_Loop; -- End loop through units for one ALI file ALIs.Table (Id).Last_Unit := Units.Last; ALIs.Table (Id).Sfile := Units.Table (ALIs.Table (Id).First_Unit).Sfile; -- Set types of the units (there can be at most 2 of them) if ALIs.Table (Id).First_Unit /= ALIs.Table (Id).Last_Unit then Units.Table (ALIs.Table (Id).First_Unit).Utype := Is_Body; Units.Table (ALIs.Table (Id).Last_Unit).Utype := Is_Spec; else -- Deal with body only and spec only cases, note that the reason we -- do our own checking of the name (rather than using Is_Body_Name) -- is that Uname drags in far too much compiler junk! Get_Name_String (Units.Table (Units.Last).Uname); if Name_Buffer (Name_Len) = 'b' then Units.Table (Units.Last).Utype := Is_Body_Only; else Units.Table (Units.Last).Utype := Is_Spec_Only; end if; end if; -- Scan out external version references and put in hash table E_Loop : loop Check_Unknown_Line; exit E_Loop when C /= 'E'; if Ignore ('E') then Skip_Line; else Checkc (' '); Skip_Space; Name_Len := 0; Name_Len := 0; loop C := Getc; if C < ' ' then Fatal_Error; end if; exit when At_End_Of_Field; Add_Char_To_Name_Buffer (C); end loop; Version_Ref.Set (new String'(Name_Buffer (1 .. Name_Len)), True); Skip_Eol; end if; C := Getc; end loop E_Loop; -- Scan out source dependency lines for this ALI file ALIs.Table (Id).First_Sdep := Sdep.Last + 1; D_Loop : loop Check_Unknown_Line; exit D_Loop when C /= 'D'; if Ignore ('D') then Skip_Line; else Checkc (' '); Skip_Space; Sdep.Increment_Last; -- In the following call, Lower is not set to True, this is either -- a bug, or it deserves a special comment as to why this is so??? Sdep.Table (Sdep.Last).Sfile := Get_File_Name; Sdep.Table (Sdep.Last).Stamp := Get_Stamp; Sdep.Table (Sdep.Last).Dummy_Entry := (Sdep.Table (Sdep.Last).Stamp = Dummy_Time_Stamp); -- Acquire checksum value Skip_Space; declare Ctr : Natural; Chk : Word; begin Ctr := 0; Chk := 0; loop exit when At_Eol or else Ctr = 8; if Nextc in '0' .. '9' then Chk := Chk * 16 + Character'Pos (Nextc) - Character'Pos ('0'); elsif Nextc in 'a' .. 'f' then Chk := Chk * 16 + Character'Pos (Nextc) - Character'Pos ('a') + 10; else exit; end if; Ctr := Ctr + 1; P := P + 1; end loop; if Ctr = 8 and then At_End_Of_Field then Sdep.Table (Sdep.Last).Checksum := Chk; else Fatal_Error; end if; end; -- Acquire subunit and reference file name entries Sdep.Table (Sdep.Last).Subunit_Name := No_Name; Sdep.Table (Sdep.Last).Rfile := Sdep.Table (Sdep.Last).Sfile; Sdep.Table (Sdep.Last).Start_Line := 1; if not At_Eol then Skip_Space; -- Here for subunit name if Nextc not in '0' .. '9' then Name_Len := 0; while not At_End_Of_Field loop Add_Char_To_Name_Buffer (Getc); end loop; -- Set the subunit name. Note that we use Name_Find rather -- than Name_Enter here as the subunit name may already -- have been put in the name table by the Project Manager. Sdep.Table (Sdep.Last).Subunit_Name := Name_Find; Skip_Space; end if; -- Here for reference file name entry if Nextc in '0' .. '9' then Sdep.Table (Sdep.Last).Start_Line := Get_Nat; Checkc (':'); Name_Len := 0; while not At_End_Of_Field loop Add_Char_To_Name_Buffer (Getc); end loop; Sdep.Table (Sdep.Last).Rfile := Name_Enter; end if; end if; Skip_Eol; end if; C := Getc; end loop D_Loop; ALIs.Table (Id).Last_Sdep := Sdep.Last; -- We must at this stage be at an Xref line or the end of file if C = EOF then return Id; end if; Check_Unknown_Line; if C /= 'X' then Fatal_Error; end if; -- If we are ignoring Xref sections we are done (we ignore all -- remaining lines since only xref related lines follow X). if Ignore ('X') and then not Debug_Flag_X then return Id; end if; -- Loop through Xref sections X_Loop : loop Check_Unknown_Line; exit X_Loop when C /= 'X'; -- Make new entry in section table Xref_Section.Increment_Last; Read_Refs_For_One_File : declare XS : Xref_Section_Record renames Xref_Section.Table (Xref_Section.Last); Current_File_Num : Sdep_Id; -- Keeps track of the current file number (changed by nn|) begin XS.File_Num := Sdep_Id (Get_Nat + Nat (First_Sdep_Entry) - 1); XS.File_Name := Get_File_Name; XS.First_Entity := Xref_Entity.Last + 1; Current_File_Num := XS.File_Num; Skip_Space; Skip_Eol; C := Nextc; -- Loop through Xref entities while C /= 'X' and then C /= EOF loop Xref_Entity.Increment_Last; Read_Refs_For_One_Entity : declare XE : Xref_Entity_Record renames Xref_Entity.Table (Xref_Entity.Last); N : Nat; procedure Read_Instantiation_Reference; -- Acquire instantiation reference. Caller has checked -- that current character is '[' and on return the cursor -- is skipped past the corresponding closing ']'. ---------------------------------- -- Read_Instantiation_Reference -- ---------------------------------- procedure Read_Instantiation_Reference is Local_File_Num : Sdep_Id := Current_File_Num; begin Xref.Increment_Last; declare XR : Xref_Record renames Xref.Table (Xref.Last); begin P := P + 1; -- skip [ N := Get_Nat; if Nextc = '|' then XR.File_Num := Sdep_Id (N + Nat (First_Sdep_Entry) - 1); Local_File_Num := XR.File_Num; P := P + 1; N := Get_Nat; else XR.File_Num := Local_File_Num; end if; XR.Line := N; XR.Rtype := ' '; XR.Col := 0; -- Recursive call for next reference if Nextc = '[' then pragma Warnings (Off); -- kill recursion warning Read_Instantiation_Reference; pragma Warnings (On); end if; -- Skip closing bracket after recursive call P := P + 1; end; end Read_Instantiation_Reference; -- Start of processing for Read_Refs_For_One_Entity begin XE.Line := Get_Nat; XE.Etype := Getc; XE.Col := Get_Nat; case Getc is when '*' => XE.Visibility := Global; when '+' => XE.Visibility := Static; when others => XE.Visibility := Other; end case; XE.Entity := Get_Name; -- Handle the information about generic instantiations if Nextc = '[' then Skipc; -- Opening '[' N := Get_Nat; if Nextc /= '|' then XE.Iref_File_Num := Current_File_Num; XE.Iref_Line := N; else XE.Iref_File_Num := Sdep_Id (N + Nat (First_Sdep_Entry) - 1); Skipc; XE.Iref_Line := Get_Nat; end if; if Getc /= ']' then Fatal_Error; end if; else XE.Iref_File_Num := No_Sdep_Id; XE.Iref_Line := 0; end if; Current_File_Num := XS.File_Num; -- Renaming reference is present if Nextc = '=' then P := P + 1; XE.Rref_Line := Get_Nat; if Getc /= ':' then Fatal_Error; end if; XE.Rref_Col := Get_Nat; -- No renaming reference present else XE.Rref_Line := 0; XE.Rref_Col := 0; end if; Skip_Space; XE.Oref_File_Num := No_Sdep_Id; XE.Tref_File_Num := No_Sdep_Id; XE.Tref := Tref_None; XE.First_Xref := Xref.Last + 1; -- Loop to check for additional info present loop declare Ref : Tref_Kind; File : Sdep_Id; Line : Nat; Typ : Character; Col : Nat; Std : Name_Id; begin Get_Typeref (Current_File_Num, Ref, File, Line, Typ, Col, Std); exit when Ref = Tref_None; -- Do we have an overriding procedure? if Ref = Tref_Derived and then Typ = 'p' then XE.Oref_File_Num := File; XE.Oref_Line := Line; XE.Oref_Col := Col; -- Arrays never override anything, and <> points to -- the index types instead elsif Ref = Tref_Derived and then XE.Etype = 'A' then -- Index types are stored in the list of references Xref.Increment_Last; declare XR : Xref_Record renames Xref.Table (Xref.Last); begin XR.File_Num := File; XR.Line := Line; XR.Rtype := Array_Index_Reference; XR.Col := Col; XR.Name := Std; end; -- Interfaces are stored in the list of references, -- although the parent type itself is stored in XE. -- The first interface (when there are only -- interfaces) is stored in XE.Tref*) elsif Ref = Tref_Derived and then Typ = 'R' and then XE.Tref_File_Num /= No_Sdep_Id then Xref.Increment_Last; declare XR : Xref_Record renames Xref.Table (Xref.Last); begin XR.File_Num := File; XR.Line := Line; XR.Rtype := Interface_Reference; XR.Col := Col; XR.Name := Std; end; else XE.Tref := Ref; XE.Tref_File_Num := File; XE.Tref_Line := Line; XE.Tref_Type := Typ; XE.Tref_Col := Col; XE.Tref_Standard_Entity := Std; end if; end; end loop; -- Loop through cross-references for this entity loop Skip_Space; if At_Eol then Skip_Eol; exit when Nextc /= '.'; P := P + 1; end if; Xref.Increment_Last; declare XR : Xref_Record renames Xref.Table (Xref.Last); begin N := Get_Nat; if Nextc = '|' then XR.File_Num := Sdep_Id (N + Nat (First_Sdep_Entry) - 1); Current_File_Num := XR.File_Num; P := P + 1; N := Get_Nat; else XR.File_Num := Current_File_Num; end if; XR.Line := N; XR.Rtype := Getc; -- Imported entities reference as in: -- 494b<c,__gnat_copy_attribs>25 if Nextc = '<' then Skipc; XR.Imported_Lang := Get_Name; pragma Assert (Nextc = ','); Skipc; XR.Imported_Name := Get_Name; pragma Assert (Nextc = '>'); Skipc; else XR.Imported_Lang := No_Name; XR.Imported_Name := No_Name; end if; XR.Col := Get_Nat; if Nextc = '[' then Read_Instantiation_Reference; end if; end; end loop; -- Record last cross-reference XE.Last_Xref := Xref.Last; C := Nextc; exception when Bad_ALI_Format => -- If ignoring errors, then we skip a line with an -- unexpected error, and try to continue subsequent -- xref lines. if Ignore_Errors then Xref_Entity.Decrement_Last; Skip_Line; C := Nextc; -- Otherwise, we reraise the fatal exception else raise; end if; end Read_Refs_For_One_Entity; end loop; -- Record last entity XS.Last_Entity := Xref_Entity.Last; end Read_Refs_For_One_File; C := Getc; end loop X_Loop; -- Here after dealing with xref sections -- Ignore remaining lines, which belong to an additional section of the -- ALI file not considered here (like SCO or Alfa). Check_Unknown_Line; return Id; exception when Bad_ALI_Format => return No_ALI_Id; end Scan_ALI; --------- -- SEq -- --------- function SEq (F1, F2 : String_Ptr) return Boolean is begin return F1.all = F2.all; end SEq; ----------- -- SHash -- ----------- function SHash (S : String_Ptr) return Vindex is H : Word; begin H := 0; for J in S.all'Range loop H := H * 2 + Character'Pos (S (J)); end loop; return Vindex (Vindex'First + Vindex (H mod Vindex'Range_Length)); end SHash; end ALI;
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