-- --
-- S p e c --
-- --
--- Copyright (C) 1992-2002 Free Software Foundation, Inc. --
+-- Copyright (C) 1992-2004 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- --
type Source_Id is range 5_000_000 .. 5_999_999;
-- Id values used for Source table entries
+ type Interrupt_State_Id is range 6_000_000 .. 6_999_999;
+ -- Id values used for Interrupt_State table entries
+
--------------------
-- ALI File Table --
--------------------
type Main_Program_Type is (None, Proc, Func);
-- Indicator of whether unit can be used as main program
- type Restrictions_String is array (All_Restrictions) of Character;
- -- Type used to hold string from R line
-
type ALIs_Record is record
Afile : File_Name_Type;
-- this ALI file, since the body if present is always first).
Ver : String (1 .. Ver_Len_Max);
- -- Value of library version (V line in ALI file)
+ -- Value of library version (V line in ALI file). Not set if
+ -- V lines are ignored as a result of the Ignore_Lines parameter.
Ver_Len : Natural;
- -- Length of characters stored in Ver
+ -- Length of characters stored in Ver. Not set if V lines are
+ -- ignored as a result of the Ignore_Lines parameter.
+
+ Interface : Boolean;
+ -- Set True when this is an interface to a standalone library
First_Unit : Unit_Id;
-- Id of first Unit table entry for this file
-- Id of last Sdep table entry for this file
Main_Program : Main_Program_Type;
- -- Indicator of whether first unit can be used as main program
+ -- Indicator of whether first unit can be used as main program.
+ -- Not set if 'M' appears in Ignore_Lines.
Main_Priority : Int;
-- Indicates priority value if Main_Program field indicates that
-- this can be a main program. A value of -1 (No_Main_Priority)
-- indicates that no parameter was found, or no M line was present.
+ -- Not set if 'M' appears in Ignore_Lines.
Time_Slice_Value : Int;
-- Indicates value of time slice parameter from T=xxx on main program
-- line. A value of -1 indicates that no T=xxx parameter was found,
-- or no M line was present.
+ -- Not set if 'M' appears in Ignore_Lines.
WC_Encoding : Character;
-- Wide character encoding if main procedure. Otherwise not relevant.
+ -- Not set if 'M' appears in Ignore_Lines.
Locking_Policy : Character;
-- Indicates locking policy for units in this file. Space means
-- tasking was not used, or that no Locking_Policy pragma was
-- present or that this is a language defined unit. Otherwise set
-- to first character (upper case) of policy name.
+ -- Not set if 'P' appears in Ignore_Lines.
Queuing_Policy : Character;
-- Indicates queuing policy for units in this file. Space means
-- tasking was not used, or that no Queuing_Policy pragma was
-- present or that this is a language defined unit. Otherwise set
-- to first character (upper case) of policy name.
+ -- Not set if 'P' appears in Ignore_Lines.
Task_Dispatching_Policy : Character;
-- Indicates task dispatching policy for units in this file. Space
-- means tasking was not used, or that no Task_Dispatching_Policy
-- pragma was present or that this is a language defined unit.
-- Otherwise set to first character (upper case) of policy name.
+ -- Not set if 'P' appears in Ignore_Lines.
Compile_Errors : Boolean;
-- Set to True if compile errors for unit. Note that No_Object
-- will always be set as well in this case.
+ -- Not set if 'P' appears in Ignore_Lines.
Float_Format : Character;
- -- Set to float format (set to I if no float-format given)
+ -- Set to float format (set to I if no float-format given).
+ -- Not set if 'P' appears in Ignore_Lines.
No_Object : Boolean;
- -- Set to True if no object file generated
-
- No_Run_Time : Boolean;
- -- Set to True if file was compiled with pragma No_Run_Time
+ -- Set to True if no object file generated.
+ -- Not set if 'P' appears in Ignore_Lines.
Normalize_Scalars : Boolean;
- -- Set to True if file was compiled with Normalize_Scalars
+ -- Set to True if file was compiled with Normalize_Scalars.
+ -- Not set if 'P' appears in Ignore_Lines.
Unit_Exception_Table : Boolean;
- -- Set to True if unit exception table pointer generated
+ -- Set to True if unit exception table pointer generated.
+ -- Not set if 'P' appears in Ignore_Lines.
Zero_Cost_Exceptions : Boolean;
- -- Set to True if file was compiled with zero cost exceptions
+ -- Set to True if file was compiled with zero cost exceptions.
+ -- Not set if 'P' appears in Ignore_Lines.
- Restrictions : Restrictions_String;
- -- Copy of restrictions letters from R line
+ Restrictions : Restrictions_Info;
+ -- Restrictions information reconstructed from R lines
+
+ First_Interrupt_State : Interrupt_State_Id;
+ Last_Interrupt_State : Interrupt_State_Id'Base;
+ -- These point to the first and last entries in the interrupt
+ -- state table for this unit. If there are no entries, then
+ -- Last_Interrupt_State = First_Interrupt_State - 1 (that's
+ -- why the 'Base reference is there, it can be one less than
+ -- the lower bound of the subtype).
+ -- Not set if 'I' appears in Ignore_Lines
end record;
Dynamic_Elab : Boolean;
-- Set to True if the unit was compiled with dynamic elaboration
- -- checks (i.e. either -gnatE or pragma Elaboration_Checks (Static)
+ -- checks (i.e. either -gnatE or pragma Elaboration_Checks (RM)
-- was used to compile the unit).
Elaborate_Body : Boolean;
-- Set True if IS qualifier appears in ALI file, indicating that
-- an Initialize_Scalars pragma applies to the unit.
+ Interface : Boolean;
+ -- Set True when this is an interface to a standalone library
+
+ Body_Needed_For_SAL : Boolean;
+ -- Indicates that the source for the body of the unit (subprogram,
+ -- package, or generic unit) must be included in a standalone library.
end record;
package Units is new Table.Table (
Table_Increment => 200,
Table_Name => "Unit");
+ ---------------------------
+ -- Interrupt State Table --
+ ---------------------------
+
+ -- An entry is made in this table for each I (interrupt state) line
+ -- encountered in the input ALI file. The First/Last_Interrupt_Id
+ -- fields of the ALI file entry show the range of entries defined
+ -- within a particular ALI file.
+
+ type Interrupt_State_Record is record
+ Interrupt_Id : Nat;
+ -- Id from interrupt state entry
+
+ Interrupt_State : Character;
+ -- State from interrupt state entry ('u'/'r'/'s')
+
+ IS_Pragma_Line : Nat;
+ -- Line number of Interrupt_State pragma
+ end record;
+
+ package Interrupt_States is new Table.Table (
+ Table_Component_Type => Interrupt_State_Record,
+ Table_Index_Type => Interrupt_State_Id'Base,
+ Table_Low_Bound => Interrupt_State_Id'First,
+ Table_Initial => 100,
+ Table_Increment => 200,
+ Table_Name => "Interrupt_States");
+
--------------
-- Switches --
--------------
-- These switches record status information about ali files that
-- have been read, for quick reference without searching tables.
+ -- Note: a switch will be left set at its default value if the line
+ -- which might otherwise set it is ignored (from Ignore_Lines).
+
Dynamic_Elaboration_Checks_Specified : Boolean := False;
- -- Set to False by Initialize_ALI. Set to True if Read_ALI reads
+ -- Set to False by Initialize_ALI. Set to True if Scan_ALI reads
-- a unit for which dynamic elaboration checking is enabled.
Float_Format_Specified : Character := ' ';
-- Set to False by Initialize_ALI. Set to True if an ali file indicates
-- that the file was compiled in Normalize_Scalars mode.
- No_Run_Time_Specified : Boolean := False;
- -- Set to False by Initialize_ALI, Set to True if an ali file indicates
- -- that the file was compiled in No_Run_Time mode.
-
Queuing_Policy_Specified : Character := ' ';
-- Set to blank by Initialize_ALI. Set to the appropriate queuing policy
-- character if an ali file contains a P line setting the queuing policy.
- Restrictions : Restrictions_String := (others => 'n');
- -- This array records the cumulative contributions of R lines in all
- -- ali files. An entry is changed will be set to v if any ali file
- -- indicates that the restriction is violated, and otherwise will be
- -- set to r if the restriction is specified by some unit.
+ Cumulative_Restrictions : Restrictions_Info;
+ -- This variable records the cumulative contributions of R lines in all
+ -- ali files, showing whether a restriction pragma exists anywhere, and
+ -- accumulating the aggregate knowledge of violations.
Static_Elaboration_Model_Used : Boolean := False;
-- Set to False by Initialize_ALI. Set to True if any ALI file for a
-- Each With line (W line) in an ALI file generates a Withs table entry
+ -- Note: there will be no entries in this table if 'W' lines are ignored
+
No_With_Id : constant With_Id := With_Id'First;
-- Special value indicating no withs table entry
Elab_All_Desirable : Boolean;
-- Indicates presence of ED parameter
+ Interface : Boolean := False;
+ -- True if the Unit is an Interface of a Stand-Alone Library
+
end record;
package Withs is new Table.Table (
-- Each Arg line (A line) in an ALI file generates an Args table entry
+ -- Note: there will be no entries in this table if 'A' lines are ignored
+
No_Arg_Id : constant Arg_Id := Arg_Id'First;
-- Special value indicating no args table entry
-- to form the entry in this table, using a NUL character as the
-- separator, and a final NUL character is appended to the end.
+ -- Note: there will be no entries in this table if 'L' lines are ignored
+
type Linker_Option_Record is record
Name : Name_Id;
-- Name entry containing concatenated list of Linker_Options
-- as read from E lines in the ali file. The stored values do not
-- include the terminating quote characters.
+ -- Note: there will be no entries in this table if 'E' lines are ignored
+
type Vindex is range 0 .. 98;
-- Type to define range of headers
-- Each source dependency (D line) in an ALI file generates an
-- entry in the Sdep table.
+ -- Note: there will be no entries in this table if 'D' lines are ignored
+
No_Sdep_Id : constant Sdep_Id := Sdep_Id'First;
-- Special value indicating no Sdep table entry
- First_Sdep_Entry : constant Sdep_Id := No_Sdep_Id + 1;
- -- Id of first actual entry in table
+ First_Sdep_Entry : Sdep_Id := No_Sdep_Id + 1;
+ -- Id of first Sdep entry for current ali file. This is initialized to
+ -- the first Sdep entry in the table, and then incremented appropriately
+ -- as successive ALI files are scanned.
type Sdep_Record is record
-- The following table records cross-reference sections, there is one
-- entry for each X header line in the ALI file for an xref section.
- -- Note that there will be no entries in this table if the Read_Xref
- -- parameter to Scan_ALI was set to False.
+
+ -- Note: there will be no entries in this table if 'X' lines are ignored
type Xref_Section_Record is record
File_Num : Sdep_Id;
Last_Entity : Nat;
-- Last entry in Xref_Entity table
-
end record;
package Xref_Section is new Table.Table (
Etype : Character;
-- Set to the identification character for the entity. See section
- -- "Cross-Reference Entity Identifiers in lib-xref.ads for details.
+ -- "Cross-Reference Entity Identifiers" in lib-xref.ads for details.
Col : Pos;
-- Column number of definition
-- This field is set to blank if no typeref is present, or if the
-- typeref refers to an entity in standard. Otherwise it contains
-- the identification character for the typeref entity. See section
- -- "Cross-Reference Entity Identifiers in lib-xref.ads for details.
+ -- "Cross-Reference Entity Identifiers" in lib-xref.ads for details.
Tref_Col : Nat;
-- This field is set to zero if no typeref is present, or if the
-- Initialize the ALI tables. Also resets all switch values to defaults.
function Scan_ALI
- (F : File_Name_Type;
- T : Text_Buffer_Ptr;
- Ignore_ED : Boolean;
- Err : Boolean;
- Read_Xref : Boolean := False)
- return ALI_Id;
+ (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) return ALI_Id;
-- Given the text, T, of an ALI file, F, scan and store the information
-- from the file, and return the Id of the resulting entry in the ALI
-- table. Switch settings may be modified as described above in the
-- is terminated. If Err is True, then no error message is output,
-- and No_ALI_Id is returned.
--
+ -- Ignore_Lines requests that Scan_ALI ignore any lines that start
+ -- with any given key character. The default value of X causes all
+ -- Xref lines to be ignored. The corresponding data in the ALI
+ -- tables will not be filled in in this case. It is not possible
+ -- to ignore U (unit) lines, they are always read.
+ --
+ -- Read_Lines requests that Scan_ALI process only lines that start
+ -- with one of the given characters. The corresponding data in the
+ -- ALI file for any characters not given in the list will not be
+ -- set. The default value of the null string indicates that all
+ -- lines should be read (unless Ignore_Lines is specified). U
+ -- (unit) lines are always read regardless of the value of this
+ -- parameter.
+ --
+ -- Note: either Ignore_Lines or Read_Lines should be non-null.
+ -- but not both. If both are given then only the Read_Lines
+ -- value is processed, and the Ignore_Lines parameter is
+ -- not processed.
+ --
-- Read_XREF is set True to read and acquire the cross-reference
- -- information, otherwise the scan is terminated when a cross-
- -- reference line is encountered.
+ -- information. If Read_XREF is set to True, then the effect is
+ -- to ignore all lines other than U, W, D and X lines and the
+ -- Ignore_Lines and Read_Lines parameters are ignored (i.e. the
+ -- use of True for Read_XREF is equivalent to specifying an
+ -- argument of "UWDX" for Read_Lines.
+ --
+ -- Ignore_Errors is normally False. If it is set True, then Scan_ALI
+ -- will do its best to scan through a file and extract all information
+ -- it can, even if there are errors. In this case Err is only set if
+ -- Scan_ALI was completely unable to process the file (e.g. it did not
+ -- look like an ALI file at all). Ignore_Errors is intended to improve
+ -- the downward compatibility of new compilers with old tools.
end ALI;
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