-- --
-- S p e c --
-- --
--- $Revision$
--- --
--- Copyright (C) 1992-2002 Free Software Foundation, Inc. --
+-- 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 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. --
--- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
+-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
with Casing; use Casing;
with Gnatvsn; use Gnatvsn;
+with Namet; use Namet;
with Rident; use Rident;
with Table;
with Types; use Types;
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
+
+ type Priority_Specific_Dispatching_Id is range 7_000_000 .. 7_999_999;
+ -- Id values used for Priority_Specific_Dispatching 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;
-- Name of ALI file
- Ofile_Full_Name : Name_Id;
+ Ofile_Full_Name : File_Name_Type;
-- Full name of object file corresponding to the ALI file
Sfile : 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.
+
+ SAL_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.
+ -- 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.
+ -- 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.
+ -- 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.
+ -- 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.
+ -- 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.
+ -- 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
-
- Restrictions : Restrictions_String;
- -- Copy of restrictions letters from R line
+ -- Set to True if file was compiled with zero cost exceptions. Not set
+ -- if 'P' appears in Ignore_Lines.
+
+ 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 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
+
+ First_Specific_Dispatching : Priority_Specific_Dispatching_Id;
+ Last_Specific_Dispatching : Priority_Specific_Dispatching_Id'Base;
+ -- These point to the first and last entries in the priority specific
+ -- dispatching table for this unit. If there are no entries, then
+ -- Last_Specific_Dispatching = First_Specific_Dispatching - 1. That
+ -- is why the 'Base reference is there, it can be one less than the
+ -- lower bound of the subtype. Not set if 'S' appears in Ignore_Lines.
end record;
-- have an elaboration routine (since it has no elaboration code).
Pure : Boolean;
- -- Indicates presence of PU parameter for a pure package
+ -- Indicates presence of PU parameter for a package having pragma Pure
Dynamic_Elab : Boolean;
- -- Set to True if the unit was compiled with dynamic elaboration
- -- checks (i.e. either -gnatE or pragma Elaboration_Checks (Static)
- -- was used to compile the unit).
+ -- Set to True if the unit was compiled with dynamic elaboration checks
+ -- (i.e. either -gnatE or pragma Elaboration_Checks (RM) was used to
+ -- compile the unit).
Elaborate_Body : Boolean;
- -- Indicates presence of EB parameter for a package which has a
- -- pragma Preelaborate_Body.
+ -- Indicates presence of EB parameter for a package which has a pragma
+ -- Elaborate_Body, and also for generic package instantiations.
Set_Elab_Entity : Boolean;
-- Indicates presence of EE parameter for a unit which has an
-- elaboration of the entity.
Has_RACW : Boolean;
- -- Indicates presence of RA parameter for a package that declares
- -- at least one Remote Access to Class_Wide (RACW) object.
+ -- Indicates presence of RA parameter for a package that declares at
+ -- least one Remote Access to Class_Wide (RACW) object.
Remote_Types : Boolean;
-- Indicates presence of RT parameter for a package which has a
-- pragma Remote_Types.
Shared_Passive : Boolean;
- -- Indicates presence of SP parameter for a package which has a
- -- pragma Shared_Passive.
+ -- Indicates presence of SP parameter for a package which has a pragma
+ -- Shared_Passive.
RCI : Boolean;
- -- Indicates presence of RC parameter for a package which has a
- -- pragma Remote_Call_Interface.
+ -- Indicates presence of RC parameter for a package which has a pragma
+ -- Remote_Call_Interface.
Predefined : Boolean;
-- Indicates if unit is language predefined (or a child of such a unit)
Icasing : Casing_Type;
-- Indicates casing of identifiers in source file for this unit. This
- -- is used for informational output, and also for constructing the
- -- main unit if it is being built in Ada.
+ -- is used for informational output, and also for constructing the main
+ -- unit if it is being built in Ada.
Kcasing : Casing_Type;
- -- Indicates casing of keyowords in source file for this unit. This
- -- is used for informational output, and also for constructing the
- -- main unit if it is being built in Ada.
+ -- Indicates casing of keywords in source file for this unit. This is
+ -- used for informational output, and also for constructing the main
+ -- unit if it is being built in Ada.
Elab_Position : aliased Natural;
-- Initialized to zero. Set non-zero when a unit is chosen and
-- Set True if IS qualifier appears in ALI file, indicating that
-- an Initialize_Scalars pragma applies to the unit.
+ SAL_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.
+
+ Elaborate_Body_Desirable : Boolean;
+ -- Indicates that the front end elaboration circuitry decided that it
+ -- would be a good idea if this package had Elaborate_Body. The binder
+ -- will attempt, but does not promise, to place the elaboration call
+ -- for the body right after the call for the spec, or at least as close
+ -- together as possible.
+
+ Optimize_Alignment : Character;
+ -- Optimize_Alignment setting. Set to L/S/T/O for OL/OS/OT/OO present
+
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");
+
+ -----------------------------------------
+ -- Priority Specific Dispatching Table --
+ -----------------------------------------
+
+ -- An entry is made in this table for each S (priority specific
+ -- dispatching) line encountered in the input ALI file. The
+ -- First/Last_Specific_Dispatching_Id fields of the ALI file
+ -- entry show the range of entries defined within a particular
+ -- ALI file.
+
+ type Specific_Dispatching_Record is record
+ Dispatching_Policy : Character;
+ -- First character (upper case) of the corresponding policy name
+
+ First_Priority : Nat;
+ -- Lower bound of the priority range to which the specified dispatching
+ -- policy applies.
+
+ Last_Priority : Nat;
+ -- Upper bound of the priority range to which the specified dispatching
+ -- policy applies.
+
+ PSD_Pragma_Line : Nat;
+ -- Line number of Priority_Specific_Dispatching pragma
+ end record;
+
+ package Specific_Dispatching is new Table.Table (
+ Table_Component_Type => Specific_Dispatching_Record,
+ Table_Index_Type => Priority_Specific_Dispatching_Id'Base,
+ Table_Low_Bound => Priority_Specific_Dispatching_Id'First,
+ Table_Initial => 100,
+ Table_Increment => 200,
+ Table_Name => "Priority_Specific_Dispatching");
+
--------------
-- 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 blank by Initialize_ALI. Set to appropriate float format
- -- character (V or I, see Opt.Float_Format) if an an ali file that
+ -- character (V or I, see Opt.Float_Format) if an ali file that
-- is read contains an F line setting the floating point format.
Initialize_Scalars_Used : Boolean := False;
-- 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 := No_Restrictions;
+ -- 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.
+
+ Stack_Check_Switch_Set : Boolean := False;
+ -- Set to True if at least one ALI file contains '-fstack-check' in its
+ -- argument list.
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
-- Indicates presence of EA parameter
Elab_All_Desirable : Boolean;
+ -- Indicates presence of AD parameter
+
+ Elab_Desirable : Boolean;
-- Indicates presence of ED parameter
+ SAL_Interface : Boolean := False;
+ -- True if the Unit is an Interface of a Stand-Alone Library
+
+ Limited_With : Boolean := False;
+ -- True if unit is named in a limited_with_clause
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
Hash => SHash,
Equal => SEq);
+ -------------------------
+ -- No_Dependency Table --
+ -------------------------
+
+ -- Each R line for a No_Dependency Restriction generates an entry in
+ -- this No_Dependency table.
+
+ type No_Dep_Record is record
+ ALI_File : ALI_Id;
+ -- ALI File containing the entry
+
+ No_Dep_Unit : Name_Id;
+ -- Id for names table entry including entire name, including periods
+ end record;
+
+ package No_Deps is new Table.Table (
+ Table_Component_Type => No_Dep_Record,
+ Table_Index_Type => Integer,
+ Table_Low_Bound => 0,
+ Table_Initial => 200,
+ Table_Increment => 400,
+ Table_Name => "No_Deps");
+
------------------------------------
-- Sdep (Source Dependency) Table --
------------------------------------
- -- Each source dependency (D line) in an ALI file generates an
- -- entry in the Sdep table.
+ -- 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
-- Name of source file
Stamp : Time_Stamp_Type;
- -- Time stamp value. Note that this will be all zero characters
- -- for the dummy entries for missing or non-dependent files.
+ -- Time stamp value. Note that this will be all zero characters for the
+ -- dummy entries for missing or non-dependent files.
Checksum : Word;
- -- Checksum value. Note that this will be all zero characters
- -- for the dummy entries for missing or non-dependent files
+ -- Checksum value. Note that this will be all zero characters for the
+ -- dummy entries for missing or non-dependent files
Dummy_Entry : Boolean;
- -- Set True for dummy entries that correspond to missing files
- -- or files where no dependency relationship exists.
+ -- Set True for dummy entries that correspond to missing files or files
+ -- where no dependency relationship exists.
Subunit_Name : Name_Id;
-- Name_Id for subunit name if present, else No_Name
Rfile : File_Name_Type;
- -- Reference file name. Same as Sfile unless a Source_Reference
- -- pragma was used, in which case it reflects the name used in
- -- the pragma.
+ -- Reference file name. Same as Sfile unless a Source_Reference pragma
+ -- was used, in which case it reflects the name used in the pragma.
Start_Line : Nat;
-- Starting line number in file. Always 1, unless a Source_Reference
-- Use of Name Table Info --
----------------------------
- -- All unit names and file names are entered into the Names table. The
- -- Info fields of these entries are used as follows:
+ -- All unit names and file names are entered into the Names table. The Info
+ -- fields of these entries are used as follows:
-- Unit name Info field has Unit_Id of unit table entry
-- ALI file name Info field has ALI_Id of ALI table entry
-- Cross-Reference Data --
--------------------------
- -- 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.
+ -- 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: there will be no entries in this table if 'X' lines are ignored
type Xref_Section_Record is record
File_Num : Sdep_Id;
-- Dependency number for file (entry in Sdep.Table)
- File_Name : Name_Id;
+ File_Name : File_Name_Type;
-- Name of file
First_Entity : Nat;
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
Entity : Name_Id;
-- Name of entity
+ Iref_File_Num : Sdep_Id;
+ -- This field is set to the dependency reference for the file containing
+ -- the generic entity that this one instantiates, or to No_Sdep_Id if
+ -- the current entity is not an instantiation
+
+ Iref_Line : Nat;
+ -- This field is set to the line number in Iref_File_Num of the generic
+ -- entity that this one instantiates, or to zero if the current entity
+ -- is not an instantiation.
+
Rref_Line : Nat;
-- This field is set to the line number of a renaming reference if
-- one is present, or to zero if no renaming reference is present
-- 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
-- entity in package Standard, then this field is a Name_Id
-- reference for the entity name.
+ Oref_File_Num : Sdep_Id;
+ -- This field is set to No_Sdep_Id if the entity doesn't override any
+ -- other entity, or to the dependency reference for the overridden
+ -- entity.
+
+ Oref_Line : Nat;
+ Oref_Col : Nat;
+ -- These two fields are set to the line and column of the overridden
+ -- entity.
+
First_Xref : Nat;
-- Index into Xref table of first cross-reference
Table_Increment => 300,
Table_Name => "Xref_Entity");
+ Array_Index_Reference : constant Character := '*';
+ Interface_Reference : constant Character := 'I';
+ -- Some special types of references. In the ALI file itself, these
+ -- are output as attributes of the entity, not as references, but
+ -- there is no provision in Xref_Entity_Record for storing multiple
+ -- such references.
+
-- The following table records actual cross-references
type Xref_Record is record
-- that if no file entry is present explicitly, this is just a copy
-- of the reference for the current cross-reference section.
- Line : Pos;
- -- Line number for the reference
+ Line : Nat;
+ -- Line number for the reference. This is zero when referencing a
+ -- predefined entity, but in this case Name is set.
Rtype : Character;
-- Indicates type of reference, using code used in ALI file:
-- c = completion of private or incomplete type
-- x = type extension
-- i = implicit reference
+ -- Array_Index_Reference = reference to the index of an array
+ -- Interface_Reference = reference to an interface implemented
+ -- by the type
-- See description in lib-xref.ads for further details
Col : Nat;
-- Column number for the reference
+ Name : Name_Id := No_Name;
+ -- This is only used when referencing a predefined entity. Currently,
+ -- this only occurs for array indexes.
+
-- Note: for instantiation references, Rtype is set to ' ', and Col is
-- set to zero. One or more such entries can follow any other reference.
+ -- When there is more than one such entry, this is to be read as:
+ -- e.g. ref1 ref2 ref3
+ -- ref1 is a reference to an entity that was instantied at ref2.
+ -- ref2 itself is also the result of an instantiation, that took
+ -- place at ref3
end record;
package Xref is new Table.Table (
--------------------------------------
procedure Initialize_ALI;
- -- Initialize the ALI tables. Also resets all switch values to defaults.
+ -- 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
-- switch description settings.
--
-- Ignore_ED is normally False. If set to True, it indicates that
- -- all ED (elaboration desirable) indications in the ALI file are
- -- to be ignored.
+ -- all AD/ED (elaboration desirable) indications in the ALI file are
+ -- to be ignored. This parameter is obsolete now that the -f switch
+ -- is removed from gnatbind, and should be removed ???
--
-- Err determines the action taken on an incorrectly formatted file.
-- If Err is False, then an error message is output, and the program
-- 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 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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