/usr/share/ada/adainclude/gpr/gpr-knowledge.adb is in libgpr1-dev 2017-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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-- --
-- GPR PROJECT MANAGER --
-- --
-- Copyright (C) 2006-2017, Free Software Foundation, Inc. --
-- --
-- This library is free software; you can redistribute it and/or modify it --
-- under terms of the GNU General Public License as published by the Free --
-- Software Foundation; either version 3, or (at your option) any later --
-- version. This library is distributed in the hope that it will be useful, --
-- but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHAN- --
-- TABILITY or FITNESS FOR A PARTICULAR PURPOSE. --
-- --
-- --
-- --
-- --
-- --
-- You should have received a copy of the GNU General Public License and --
-- a copy of the GCC Runtime Library Exception along with this program; --
-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
-- <http://www.gnu.org/licenses/>. --
-- --
------------------------------------------------------------------------------
with Ada.Unchecked_Deallocation;
with Ada.Characters.Handling; use Ada.Characters.Handling;
with Ada.Command_Line; use Ada.Command_Line;
with Ada.Containers; use Ada.Containers;
with Ada.Containers.Indefinite_Ordered_Sets;
with Ada.Directories; use Ada.Directories;
with Ada.Environment_Variables; use Ada.Environment_Variables;
with Ada.Exceptions; use Ada.Exceptions;
with Ada.IO_Exceptions;
with Ada.Strings.Fixed; use Ada.Strings.Fixed;
with Ada.Strings.Hash;
with Ada.Strings.Hash_Case_Insensitive;
with Ada.Text_IO; use Ada.Text_IO;
with GNAT.Case_Util; use GNAT.Case_Util;
with GNAT.Directory_Operations; use GNAT.Directory_Operations;
with GNAT.Expect; use GNAT.Expect;
with GNAT.Regpat; use GNAT.Regpat;
with GNAT.Strings; use GNAT.Strings;
with DOM.Core.Nodes; use DOM.Core, DOM.Core.Nodes;
with DOM.Core.Documents;
with Input_Sources.File; use Input_Sources.File;
with Sax.Readers; use Sax.Readers;
with Schema.Dom_Readers; use Schema.Dom_Readers;
with Schema.Schema_Readers; use Schema.Schema_Readers;
with Schema.Validators; use Schema.Validators;
with GPR.Sdefault; use GPR.Sdefault;
with GPR.Names; use GPR.Names;
with GPR.Opt;
with GPR.Util; use GPR.Util;
package body GPR.Knowledge is
package Known_Languages is new Ada.Containers.Hashed_Maps
(Key_Type => Name_Id,
Element_Type => Name_Id,
Hash => Hash_Case_Insensitive,
Equivalent_Keys => "=",
"=" => "=");
Languages_Known : Known_Languages.Map;
-- Contains all the languages that are described in the database with a
-- real compiler.
package String_Maps is new Ada.Containers.Indefinite_Hashed_Maps
(String, Unbounded_String, Ada.Strings.Hash_Case_Insensitive, "=");
package String_Sets is new Ada.Containers.Indefinite_Ordered_Sets
(String);
procedure Unchecked_Free is new Ada.Unchecked_Deallocation
(Pattern_Matcher, Pattern_Matcher_Access);
type External_Value_Item is record
Value : Name_Id;
Alternate : Name_Id := No_Name;
Extracted_From : Name_Id;
end record;
-- Value is the actual value of the <external_value> node.
-- Extracted_From will either be set to Value itself, or when the node is
-- a <directory node> to the full directory, before the regexp match.
-- When the value comes from a <shell> node, Extracted_From is set to the
-- full output of the shell command.
package External_Value_Lists is new Ada.Containers.Doubly_Linked_Lists
(External_Value_Item);
package String_To_External_Value is new
Ada.Containers.Indefinite_Hashed_Maps
(Key_Type => String,
Element_Type => External_Value_Lists.Cursor,
Hash => Ada.Strings.Hash,
Equivalent_Keys => "=",
"=" => External_Value_Lists."=");
package CDM renames Compiler_Description_Maps;
package CFL renames Compiler_Filter_Lists;
use Compiler_Lists, CFL, Compilers_Filter_Lists;
use Configuration_Lists, String_Maps;
use External_Value_Lists, String_Lists;
use External_Value_Nodes;
Case_Sensitive_Files : constant Boolean := Directory_Separator = '\';
On_Windows : constant Boolean := Directory_Separator = '\';
Ignore_Compiler : exception;
-- Raised when the compiler should be ignored
Indentation_Level : Integer := 0;
-- Current indentation level for traces
function Get_Variable_Value
(Comp : Compiler;
Name : String) return String;
-- Return the value of a predefined or user-defined variable.
-- If the variable is not defined a warning is emitted and an empty
-- string is returned.
function Get_Name_String_Or_Null (Name : Name_Id) return String;
-- Return the string stored in Name (or the empty string if Name is
-- No_Name)
procedure Put_Verbose (Config : Configuration);
-- Debug put for Config
function Get_Attribute
(N : Node; Attribute : String; Default : String) return String;
-- Return the value of an attribute, or Default if the attribute does not
-- exist
function Is_Supported_Config
(Base : Knowledge_Base;
Compilers : Compiler_Lists.List) return Boolean;
-- Whether we know how to link code compiled with all the selected
-- compilers.
function Is_Language_With_No_Compiler
(Base : Knowledge_Base;
Language_LC : String) return Boolean;
-- Given a language name (lower case), returns True if that language is
-- known to require no compiler
function Node_Value_As_String (N : Node) return String;
-- Return the value of the node, concatenating all Text children
function Ends_With (Str, Suffix : String) return Boolean;
-- Whether the string ends with Suffix. Always True if Suffix is the empty
-- string.
procedure Foreach_Compiler_In_Dir
(Iterator : in out Compiler_Iterator'Class;
Base : in out Knowledge_Base;
Directory : String;
From_Extra_Dir : Boolean;
On_Target : Targets_Set_Id;
Path_Order : Integer;
Continue : out Boolean);
-- Find all known compilers in Directory, and call Iterator.Callback as
-- appropriate.
procedure Get_Words
(Words : String;
Filter : Name_Id;
Separator1 : Character;
Separator2 : Character;
Map : out String_Lists.List;
Allow_Empty_Elements : Boolean);
-- Return the list of words in Words. Splitting is done on special
-- characters, so as to be compatible with a list of languages or a list of
-- runtimes
-- If Allow_Empty_Elements is false, then empty strings are not stored in
-- the list.
function Name_As_Directory (Dir : String) return String;
-- Ensure that Dir ends with a directory separator
function Get_String_No_Adalib (Str : String) return Name_Id;
-- Return the name without "adalib" at the end
function Get_String (Str : String) return Name_Id;
function Get_String_Or_No_Name (Str : String) return Name_Id;
-- Same as Name_Find, but does not require the user to modify
-- Name_Buffer manually.
-- The second version returns No_Name is the string is empty
procedure Get_External_Value
(Attribute : String;
Value : External_Value;
Comp : Compiler;
Split_Into_Words : Boolean := True;
Merge_Same_Dirs : Boolean := False;
Processed_Value : out External_Value_Lists.List);
-- Computes the value of Value, depending on its type. When an external
-- command needs to be executed, Path is put first on the PATH environment
-- variable.
-- Raises Ignore_Compiler if the value doesn't match its <must_have>
-- regexp.
-- The <filter> node is also taken into account.
-- If Split_Into_Words is true, then the value read from <shell> or as a
-- constant string is further assumed to be a comma-separated or space-
-- separated string, and split.
-- Comparisong with Matching is case-insensitive (this is needed for
-- languages, does not matter for versions, is not used for targets)
--
-- If Merge_Same_Dirs is True, then the values that come from a
-- <directory> node will be merged (the last one is kept, other removed) if
-- they point to the same physical directory (after normalizing names).
--
-- This is only for use within a <compiler_description> context.
procedure Foreach_Language_Runtime
(Iterator : in out Compiler_Iterator'Class;
Base : in out Knowledge_Base;
Name : Name_Id;
Executable : Name_Id;
Directory : String;
Prefix : Name_Id;
From_Extra_Dir : Boolean;
On_Target : Targets_Set_Id;
Descr : Compiler_Description;
Path_Order : Integer;
Continue : out Boolean);
-- For each language/runtime parsed in Languages/Runtimes, create a new
-- compiler in the list, if it matches Matching.
-- If Stop_At_First_Match is true, then only the first matching compiler is
-- returned, which provides a significant speedup in some cases
function Is_Windows_Executable (Filename : String) return Boolean;
-- Verify that a given filename is indeed an executable
procedure Parse_All_Dirs
(Processed_Value : out External_Value_Lists.List;
Visited : in out String_To_External_Value.Map;
Current_Dir : String;
Path_To_Check : String;
Regexp : Pattern_Matcher;
Regexp_Str : String;
Value_If_Match : Name_Id;
Group : Integer;
Group_Match : String := "";
Group_Count : Natural := 0;
Contents : Pattern_Matcher_Access := null;
Merge_Same_Dirs : Boolean);
-- Parse all subdirectories of Current_Dir for those that match
-- Path_To_Check (see description of <directory>). When a match is found,
-- the regexp is evaluated against the current directory, and the matching
-- parenthesis group is appended to Append_To (comma-separated).
-- If Group is -1, then Value_If_Match is used instead of the parenthesis
-- group.
-- Group_Match is the substring that matched Group (if it has been matched
-- already). Group_Count is the number of parenthesis groups that have been
-- processed so far. The idea is to compute the matching substring as we
-- go, since the regexp might no longer match in the end, if for instance
-- it includes ".." directories.
--
-- If Merge_Same_Dirs is True, then the values that come from a
-- <directory> node will be merged (the last one is kept, other removed) if
-- they point to the same physical directory (after normalizing names). In
-- this case, Visited contains the list of normalized directory names.
--
-- Contents, if specified, is a regular expression. It indicates that any
-- file matching the pattern should be parsed, and the first line matching
-- that regexp should be used as the name of the file instead. This is a
-- way to simulate symbolic links on platforms that do not use them.
generic
with function Callback (Var_Name, Index : String) return String;
function Substitute_Variables (Str : String) return String;
-- Substitute variables in Str (their value is computed through Callback)
function Substitute_Variables_In_Compiler_Description
(Str : String; Comp : Compiler) return String;
function Substitute_Variables_In_Configuration
(Base : Knowledge_Base;
Str : String;
Comps : Compiler_Lists.List) return String;
-- Substitute the special "$..." names.
-- Depending on the XML nodes we are in (specified by the context) the list
-- of variables might be different.
procedure Match
(Filter : Compilers_Filter_Lists.List;
Compilers : Compiler_Lists.List;
Matching_Compiler : out Compiler_Access;
Matched : out Boolean);
procedure Match
(Filter : Compilers_Filter;
Compilers : Compiler_Lists.List;
Matching_Compiler : out Compiler_Access;
Matched : out Boolean);
procedure Match
(Filter : Compiler_Filter;
Compilers : Compiler_Lists.List;
Matching_Compiler : out Compiler_Access;
Matched : out Boolean);
-- Check whether Filter matches (and set Matched to the result).
-- Matching_Compiler is set if there was a single <compilers> node, and is
-- to set the first compiler that matched in that node
function Match
(Target_Filter : String_Lists.List;
Negate : Boolean;
Compilers : Compiler_Lists.List) return Boolean;
-- Return True if Filter matches the list of selected configurations
procedure Merge_Config
(Base : Knowledge_Base;
Packages : in out String_Maps.Map;
Compilers : Compiler_Lists.List;
Config : String);
-- Merge the contents of Config into Packages, so that each attributes ends
-- up in the right package, and the packages are not duplicated.
-- Selected_Compiler is the compiler that made the chunk match the filters.
-- If there were several <compilers> filter, No_Compiler should be passed
-- in argument.
procedure Skip_Spaces (Str : String; Index : in out Integer);
-- Move Index from its current position to the next non-whitespace
-- character in Str
procedure Skip_Spaces_Backward (Str : String; Index : in out Integer);
-- Same as Skip_Spaces, but goes backward
function Is_Regexp (Str : String) return Boolean;
-- Whether Str is a regular expression
Exec_Suffix : constant GNAT.Strings.String_Access :=
Get_Executable_Suffix;
function Unquote
(Str : String; Remove_Quoted : Boolean := False) return String;
-- Remove special '\' quoting characters from Str.
-- As a special case, if Remove_Quoted is true, then '\' and the following
-- char are simply omitted in the output.
-- For instance:
-- Str="A\." Remove_Quoted=False => output is "A."
-- Str="A\." Remove_Quoted=False => output is "A"
-------------------
-- Get_Attribute --
-------------------
function Get_Attribute
(N : Node; Attribute : String; Default : String) return String
is
Attr : constant Node := Get_Named_Item (Attributes (N), Attribute);
begin
if Attr = null then
return Default;
else
return Node_Value (Attr);
end if;
end Get_Attribute;
--------------------------
-- Node_Value_As_String --
--------------------------
function Node_Value_As_String (N : Node) return String is
Result : Unbounded_String;
Child : Node := First_Child (N);
begin
while Child /= null loop
exit when Node_Type (Child) = Element_Node;
Append (Result, Node_Value (Child));
Child := Next_Sibling (Child);
end loop;
return To_String (Result);
end Node_Value_As_String;
-------------
-- Unquote --
-------------
function Unquote
(Str : String; Remove_Quoted : Boolean := False) return String
is
Str2 : String (Str'Range);
S : Integer := Str'First;
Index : Integer := Str2'First;
begin
while S <= Str'Last loop
if Str (S) = '\' then
S := S + 1;
if not Remove_Quoted then
Str2 (Index) := Str (S);
Index := Index + 1;
end if;
else
Str2 (Index) := Str (S);
Index := Index + 1;
end if;
S := S + 1;
end loop;
return Str2 (Str2'First .. Index - 1);
end Unquote;
---------------
-- Ends_With --
---------------
function Ends_With (Str, Suffix : String) return Boolean is
begin
return Suffix = ""
or else
(Str'Length >= Suffix'Length
and then Str (Str'Last - Suffix'Length + 1 .. Str'Last) = Suffix);
end Ends_With;
---------------------------
-- Is_Windows_Executable --
---------------------------
function Is_Windows_Executable (Filename : String) return Boolean is
type Byte is mod 256;
for Byte'Size use 8;
for Byte'Alignment use 1;
type Bytes is array (Positive range <>) of Byte;
Windows_Pattern : constant Bytes := (77, 90, 144, 0);
Fd : constant File_Descriptor := Open_Read (Filename, Binary);
B : Bytes (1 .. 4);
N_Read : Integer;
begin
N_Read := Read (Fd, B'Address, 4);
Close (Fd);
if N_Read < 4 then
return False;
else
if B = Windows_Pattern then
return True;
else
return False;
end if;
end if;
end Is_Windows_Executable;
---------------
-- Is_Regexp --
---------------
function Is_Regexp (Str : String) return Boolean is
-- Take into account characters quoted by '\'. We just remove them for
-- now, so that when we quote the regexp it won't see these potentially
-- special characters.
-- The goal is that for instance "\.\." is not considered as a regexp,
-- but "\.." is.
Str2 : constant String := Unquote (Str, Remove_Quoted => True);
begin
return GNAT.Regpat.Quote (Str2) /= Str2;
end Is_Regexp;
-----------------
-- Put_Verbose --
-----------------
procedure Put_Verbose (Str : String; Indent_Delta : Integer := 0) is
begin
if Current_Verbosity /= Default then
if Indent_Delta < 0 then
Indentation_Level := Indentation_Level - 2;
end if;
if Str /= "" then
Put_Line (Standard_Error, (1 .. Indentation_Level => ' ') & Str);
end if;
if Indent_Delta > 0 then
Indentation_Level := Indentation_Level + 2;
end if;
end if;
end Put_Verbose;
-----------------------
-- Name_As_Directory --
-----------------------
function Name_As_Directory (Dir : String) return String is
begin
if Dir = ""
or else Dir (Dir'Last) = Directory_Separator
or else Dir (Dir'Last) = '/'
then
return Dir;
else
return Dir & Directory_Separator;
end if;
end Name_As_Directory;
----------------------------------
-- Is_Language_With_No_Compiler --
----------------------------------
function Is_Language_With_No_Compiler
(Base : Knowledge_Base;
Language_LC : String) return Boolean
is
C : String_Lists.Cursor := First (Base.No_Compilers);
begin
while Has_Element (C) loop
if String_Lists.Element (C) = Language_LC then
return True;
end if;
Next (C);
end loop;
return False;
end Is_Language_With_No_Compiler;
RTS_List : GNAT.OS_Lib.String_List_Access :=
new GNAT.OS_Lib.String_List (1 .. 4);
-- List of the knowledge base directories that have already been parsed
RTS_Last : Natural := 0;
-- Index of the last directory in RTS_List
--------------------------
-- Parse_Knowledge_Base --
--------------------------
procedure Parse_Knowledge_Base
(Base : in out Knowledge_Base;
Directory : String;
Parse_Compiler_Info : Boolean := True;
Validate : Boolean := False)
is
procedure Parse_Compiler_Description
(Base : in out Knowledge_Base;
File : String;
Description : Node);
-- Parse a compiler description described by N. Appends the result to
-- Base.Compilers or Base.No_Compilers
procedure Parse_Configuration
(Append_To : in out Configuration_Lists.List;
File : String;
Description : Node);
-- Parse a configuration node
procedure Parse_Targets_Set
(Append_To : in out Targets_Set_Vectors.Vector;
File : String;
Description : Node);
-- Parse a targets set node
procedure Parse_Fallback_Targets_Set
(Append_To : in out Fallback_Targets_Set_Vectors.Vector;
File : String;
Description : Node);
-- Parse a fallback_targets set node
--------------------------------
-- Parse_Compiler_Description --
--------------------------------
procedure Parse_Compiler_Description
(Base : in out Knowledge_Base;
File : String;
Description : Node)
is
procedure Parse_External_Value
(Value : out External_Value;
File : String;
External : Node);
-- Parse an XML node that describes an external value
--------------------------
-- Parse_External_Value --
--------------------------
procedure Parse_External_Value
(Value : out External_Value;
File : String;
External : Node)
is
Tmp : Node := First_Child (External);
External_Node : External_Value_Node;
Is_Done : Boolean := True;
Static_Value : constant String := Node_Value_As_String (External);
Has_Static : Boolean := False;
begin
for S in Static_Value'Range loop
if Static_Value (S) /= ' '
and then Static_Value (S) /= ASCII.LF
then
Has_Static := True;
exit;
end if;
end loop;
-- Constant value is not within a nested node
if Has_Static then
External_Node :=
(Typ => Value_Constant,
Value => Get_String (Static_Value));
Append (Value, External_Node);
Is_Done := False;
end if;
while Tmp /= null loop
if Node_Type (Tmp) /= Element_Node then
null;
elsif Node_Name (Tmp) = "external" then
if not Is_Done then
Append (Value, (Typ => Value_Done));
end if;
External_Node :=
(Typ => Value_Shell,
Command => Get_String (Node_Value_As_String (Tmp)));
Append (Value, External_Node);
Is_Done := False;
elsif Node_Name (Tmp) = "directory" then
declare
C : constant String :=
Get_Attribute (Tmp, "contents", "");
Contents : Pattern_Matcher_Access;
begin
if C /= "" then
Contents := new Pattern_Matcher'(Compile (C));
end if;
External_Node :=
(Typ => Value_Directory,
Directory => Get_String
(Node_Value_As_String (Tmp)),
Contents => Contents,
Dir_If_Match => No_Name,
Directory_Group => 0);
end;
begin
External_Node.Directory_Group := Integer'Value
(Get_Attribute (Tmp, "group", "0"));
exception
when Constraint_Error =>
External_Node.Directory_Group := -1;
External_Node.Dir_If_Match :=
Get_String (Get_Attribute (Tmp, "group", "0"));
end;
Append (Value, External_Node);
Is_Done := True;
elsif Node_Name (Tmp) = "getenv" then
if not Is_Done then
Append (Value, (Typ => Value_Done));
end if;
declare
Name : constant String := Get_Attribute (Tmp, "name", "");
begin
if Ada.Environment_Variables.Exists (Name) then
External_Node :=
(Typ => Value_Constant,
Value => Get_String
(Ada.Environment_Variables.Value (Name)));
else
Put_Verbose ("warning: environment variable '" & Name
& "' is not defined");
External_Node :=
(Typ => Value_Constant,
Value => No_Name);
end if;
end;
Append (Value, External_Node);
Is_Done := False;
elsif Node_Name (Tmp) = "filter" then
External_Node :=
(Typ => Value_Filter,
Filter => Get_String (Node_Value_As_String (Tmp)));
Append (Value, External_Node);
Is_Done := True;
elsif Node_Name (Tmp) = "must_match" then
External_Node :=
(Typ => Value_Must_Match,
Must_Match => Get_String (Node_Value_As_String (Tmp)));
Append (Value, External_Node);
Is_Done := True;
elsif Node_Name (Tmp) = "grep" then
External_Node :=
(Typ => Value_Grep,
Regexp_Re => new Pattern_Matcher'
(Compile (Get_Attribute (Tmp, "regexp", ".*"),
Multiple_Lines)),
Group => Integer'Value
(Get_Attribute (Tmp, "group", "0")));
Append (Value, External_Node);
elsif Node_Name (Tmp) = "nogrep" then
External_Node :=
(Typ => Value_Nogrep,
Regexp_No => new Pattern_Matcher'
(Compile (Get_Attribute (Tmp, "regexp", ".*"),
Multiple_Lines)));
Append (Value, External_Node);
else
Put_Line (Standard_Error, "Invalid XML description for "
& Node_Name (External) & " in file " & File);
Put_Line
(Standard_Error, " Invalid tag: " & Node_Name (Tmp));
Value := Null_External_Value;
end if;
Tmp := Next_Sibling (Tmp);
end loop;
if not Is_Done then
Append (Value, (Typ => Value_Done));
end if;
exception
when Constraint_Error =>
Put_Line (Standard_Error, "Invalid group number for "
& Node_Name (External)
& " in file " & File);
Value := Null_External_Value;
end Parse_External_Value;
Compiler : Compiler_Description;
N : Node := First_Child (Description);
Lang : External_Value_Lists.List;
C : External_Value_Lists.Cursor;
begin
while N /= null loop
if Node_Type (N) /= Element_Node then
null;
elsif Node_Name (N) = "executable" then
declare
Prefix : constant String :=
Get_Attribute (N, "prefix", "@@");
Val : constant String := Node_Value_As_String (N);
begin
if Val = "" then
-- A special language that requires no executable. We do
-- not store it in the list of compilers, since these
-- should not be detected on the PATH anyway.
Compiler.Executable := No_Name;
else
Compiler.Executable := Get_String (Val);
begin
Compiler.Prefix_Index := Integer'Value (Prefix);
exception
when Constraint_Error =>
Compiler.Prefix_Index := -1;
end;
if not Ends_With (Val, Exec_Suffix.all) then
Compiler.Executable_Re := new Pattern_Matcher'
(Compile ("^" & Val & Exec_Suffix.all & "$"));
else
Compiler.Executable_Re := new Pattern_Matcher'
(Compile ("^" & Val & "$"));
end if;
Base.Check_Executable_Regexp := True;
end if;
exception
when Expression_Error =>
Put_Line
(Standard_Error,
"Invalid regular expression found in the configuration"
& " files: " & Val
& " while parsing " & File);
Unchecked_Free (Compiler.Executable_Re);
end;
elsif Node_Name (N) = "name" then
Compiler.Name := Get_String (Node_Value_As_String (N));
elsif Node_Name (N) = "version" then
Parse_External_Value
(Value => Compiler.Version,
File => File,
External => N);
elsif Node_Name (N) = "variable" then
declare
Name : constant String := Get_Attribute (N, "name", "@@");
begin
Append (Compiler.Variables, (Typ => Value_Variable,
Var_Name => Get_String (Name)));
Parse_External_Value
(Value => Compiler.Variables,
File => File,
External => N);
end;
elsif Node_Name (N) = "languages" then
Parse_External_Value
(Value => Compiler.Languages,
File => File,
External => N);
elsif Node_Name (N) = "runtimes" then
declare
Defaults : constant String :=
Get_Attribute (N, "default", "");
begin
if Defaults /= "" then
Get_Words (Defaults, No_Name, ' ', ',',
Compiler.Default_Runtimes, False);
end if;
Parse_External_Value
(Value => Compiler.Runtimes,
File => File,
External => N);
end;
elsif Node_Name (N) = "target" then
Parse_External_Value
(Value => Compiler.Target,
File => File,
External => N);
else
Put_Line
(Standard_Error, "Unknown XML tag in " & File & ": "
& Node_Name (N));
raise Invalid_Knowledge_Base;
end if;
N := Next_Sibling (N);
end loop;
if Compiler.Executable = No_Name then
Get_External_Value
(Attribute => "languages",
Value => Compiler.Languages,
Comp => No_Compiler,
Split_Into_Words => True,
Processed_Value => Lang);
C := First (Lang);
while Has_Element (C) loop
String_Lists.Append
(Base.No_Compilers,
To_Lower
(Get_Name_String
(External_Value_Lists.Element (C).Value)));
Next (C);
end loop;
elsif Compiler.Name /= No_Name then
CDM.Include (Base.Compilers, Compiler.Name, Compiler);
-- Include the language name in the Languages_Known hashed map,
-- if it is not already there.
declare
Languages : External_Value_Nodes.Cursor :=
Compiler.Languages.First;
Lang : External_Value_Node;
Lang_Name : Name_Id;
begin
while Languages /= External_Value_Nodes.No_Element loop
Lang := External_Value_Nodes.Element (Languages);
if Lang.Typ = Value_Constant then
Get_Name_String (Lang.Value);
To_Lower (Name_Buffer (1 .. Name_Len));
Lang_Name := Name_Find;
if not Known_Languages.Contains
(Container => Languages_Known,
Key => Name_Find)
then
Known_Languages.Include
(Container => Languages_Known,
Key => Lang_Name,
New_Item => Lang_Name);
end if;
end if;
Next (Languages);
end loop;
end;
end if;
end Parse_Compiler_Description;
-------------------------
-- Parse_Configuration --
-------------------------
procedure Parse_Configuration
(Append_To : in out Configuration_Lists.List;
File : String;
Description : Node)
is
Config : Configuration;
Chunk : Unbounded_String;
N : Node := First_Child (Description);
N2 : Node;
Compilers : Compilers_Filter;
Ignore_Config : Boolean := False;
Negate : Boolean;
Filter : Compiler_Filter;
begin
Config.Supported := True;
while N /= null loop
if Node_Type (N) /= Element_Node then
null;
elsif Node_Name (N) = "compilers" then
Compilers := No_Compilers_Filter;
N2 := First_Child (N);
while N2 /= null loop
if Node_Type (N2) /= Element_Node then
null;
elsif Node_Name (N2) = "compiler" then
declare
Version : constant String :=
Get_Attribute (N2, "version", "");
Runtime : constant String :=
Get_Attribute (N2, "runtime", "");
begin
Filter := Compiler_Filter'
(Name => Get_String_Or_No_Name
(Get_Attribute (N2, "name", "")),
Version => Get_String_Or_No_Name (Version),
Version_Re => null,
Runtime => Get_String_Or_No_Name (Runtime),
Runtime_Re => null,
Language_LC => Get_String_Or_No_Name
(To_Lower (Get_Attribute (N2, "language", ""))));
if Version /= "" then
Filter.Version_Re := new Pattern_Matcher'
(Compile (Version, Case_Insensitive));
end if;
if Runtime /= "" then
Filter.Runtime_Re := new Pattern_Matcher'
(Compile (Runtime, Case_Insensitive));
end if;
end;
Append (Compilers.Compiler, Filter);
else
Put_Line
(Standard_Error, "Unknown XML tag in " & File & ": "
& Node_Name (N2));
raise Invalid_Knowledge_Base;
end if;
N2 := Next_Sibling (N2);
end loop;
Compilers.Negate := Boolean'Value
(Get_Attribute (N, "negate", "False"));
Append (Config.Compilers_Filters, Compilers);
elsif Node_Name (N) = "targets" then
if not Is_Empty (Config.Targets_Filters) then
Put_Line (Standard_Error,
"Can have a single <targets> filter in " & File);
else
N2 := First_Child (N);
while N2 /= null loop
if Node_Type (N2) /= Element_Node then
null;
elsif Node_Name (N2) = "target" then
Append (Config.Targets_Filters,
Get_Attribute (N2, "name", ""));
else
Put_Line
(Standard_Error, "Unknown XML tag in " & File & ": "
& Node_Name (N2));
raise Invalid_Knowledge_Base;
end if;
N2 := Next_Sibling (N2);
end loop;
Config.Negate_Targets := Boolean'Value
(Get_Attribute (N, "negate", "False"));
end if;
elsif Node_Name (N) = "hosts" then
-- Resolve this filter immediately. This saves memory, since we
-- don't need to store it in memory if we know it won't apply.
N2 := First_Child (N);
Negate := Boolean'Value
(Get_Attribute (N, "negate", "False"));
Ignore_Config := not Negate;
while N2 /= null loop
if Node_Type (N2) /= Element_Node then
null;
elsif Node_Name (N2) = "host" then
if Match
(Get_Attribute (N2, "name", ""), Sdefault.Hostname)
then
Ignore_Config := Negate;
exit;
end if;
else
Put_Line
(Standard_Error, "Unknown XML tag in " & File & ": "
& Node_Name (N2));
raise Invalid_Knowledge_Base;
end if;
N2 := Next_Sibling (N2);
end loop;
exit when Ignore_Config;
elsif Node_Name (N) = "config" then
if Node_Value_As_String (N) = "" then
Config.Supported := False;
else
Append (Chunk, Node_Value_As_String (N));
end if;
else
Put_Line (Standard_Error, "Unknown XML tag in " & File & ": "
& Node_Name (N));
raise Invalid_Knowledge_Base;
end if;
N := Next_Sibling (N);
end loop;
if not Ignore_Config then
Config.Config := Get_String (To_String (Chunk));
Append (Append_To, Config);
end if;
end Parse_Configuration;
--------------------------------
-- Parse_Fallback_Targets_Set --
--------------------------------
procedure Parse_Fallback_Targets_Set
(Append_To : in out Fallback_Targets_Set_Vectors.Vector;
File : String;
Description : Node)
is
Set : String_Lists.List;
N : Node := First_Child (Description);
begin
while N /= null loop
if Node_Type (N) /= Element_Node then
null;
elsif Node_Name (N) = "target" then
String_Lists.Append (Set, Node_Value_As_String (N));
else
Put_Line (Standard_Error, "Unknown XML tag in " & File & ": "
& Node_Name (N));
raise Invalid_Knowledge_Base;
end if;
N := Next_Sibling (N);
end loop;
if not String_Lists.Is_Empty (Set) then
Fallback_Targets_Set_Vectors.Append (Append_To, Set);
end if;
end Parse_Fallback_Targets_Set;
-----------------------
-- Parse_Targets_Set --
-----------------------
procedure Parse_Targets_Set
(Append_To : in out Targets_Set_Vectors.Vector;
File : String;
Description : Node)
is
Name : Name_Id := No_Name;
Set : Target_Lists.List;
Pattern : Pattern_Matcher_Access;
N : Node := First_Child (Description);
begin
while N /= null loop
if Node_Type (N) /= Element_Node then
null;
elsif Node_Name (N) = "target" then
declare
Val : constant String := Node_Value_As_String (N);
begin
Pattern := new Pattern_Matcher'(Compile ("^" & Val & "$"));
Target_Lists.Append (Set, Pattern);
if Name = No_Name then
Name := Get_String (Val);
end if;
exception
when Expression_Error =>
Put_Line
("Invalid regular expression " & Val
& " found in the target-set while parsing " & File);
raise Invalid_Knowledge_Base;
end;
else
Put_Line (Standard_Error, "Unknown XML tag in " & File & ": "
& Node_Name (N));
raise Invalid_Knowledge_Base;
end if;
N := Next_Sibling (N);
end loop;
if not Target_Lists.Is_Empty (Set) then
Targets_Set_Vectors.Append (Append_To, (Name, Set));
end if;
end Parse_Targets_Set;
Search : Search_Type;
File : Directory_Entry_Type;
File_Node : Node;
N : Node;
Reader : Schema.Dom_Readers.Tree_Reader;
Input : File_Input;
Schema : Schema_Reader;
In_Files : String_Sets.Set;
Cur : String_Sets.Cursor;
Shortname : GNAT.Strings.String_Access;
Dir : constant String :=
Normalize_Pathname (Directory, Case_Sensitive => False);
use String_Sets;
begin
-- Do not parse several times the same database directory
for J in 1 .. RTS_Last loop
if RTS_List (J).all = Dir then
return;
end if;
end loop;
-- Extend RTS_List if it is full
if RTS_Last = RTS_List'Last then
declare
New_List : constant GNAT.OS_Lib.String_List_Access :=
new GNAT.OS_Lib.String_List (1 .. RTS_List'Length * 2);
begin
New_List (1 .. RTS_Last) := RTS_List (1 .. RTS_Last);
RTS_List := New_List;
end;
end if;
RTS_Last := RTS_Last + 1;
RTS_List (RTS_Last) := new String'(Dir);
Reader.Set_Feature (Schema_Validation_Feature, Validate);
Reader.Set_Feature (Validation_Feature, False); -- Do not use DTD
if Validate then
-- Load the XSD file used to validate the knowledge base
declare
Filename : constant String :=
Format_Pathname
(Default_Knowledge_Base_Directory
& "/gprconfig.xsd");
XSD : File_Input;
begin
Put_Verbose ("Parsing " & Filename);
Open (Filename, XSD);
Parse (Schema, XSD);
Close (XSD);
Reader.Set_Grammar (Get_Grammar (Schema));
Free (Schema);
exception
when Ada.Directories.Name_Error =>
Put_Line
(Standard_Error,
"Installation error: could not find the file " & Filename);
raise Knowledge_Base_Validation_Error;
when XML_Validation_Error =>
Put_Line (Standard_Error, Get_Error_Message (Schema));
raise Knowledge_Base_Validation_Error;
end;
end if;
Put_Verbose ("Parsing knowledge base at " & Dir);
Start_Search
(Search,
Directory => Dir,
Pattern => "*.xml",
Filter => (Ordinary_File => True, others => False));
while More_Entries (Search) loop
Get_Next_Entry (Search, File);
In_Files.Include (Full_Name (File));
end loop;
End_Search (Search);
Cur := In_Files.First;
while Cur /= String_Sets.No_Element loop
Shortname := new String'
(GNAT.Directory_Operations.Base_Name (String_Sets.Element (Cur)));
Put_Verbose ("Parsing file " & String_Sets.Element (Cur));
Open (String_Sets.Element (Cur), Input);
Parse (Reader, Input);
Close (Input);
File_Node := DOM.Core.Documents.Get_Element (Get_Tree (Reader));
if Node_Name (File_Node) = "gprconfig" then
N := First_Child (File_Node);
while N /= null loop
if Node_Type (N) /= Element_Node then
null;
elsif Node_Name (N) = "compiler_description" then
if Parse_Compiler_Info then
Parse_Compiler_Description
(Base => Base,
File => Shortname.all,
Description => N);
end if;
elsif Node_Name (N) = "configuration" then
if Parse_Compiler_Info then
Parse_Configuration
(Append_To => Base.Configurations,
File => Shortname.all,
Description => N);
end if;
elsif Node_Name (N) = "targetset" then
Parse_Targets_Set
(Append_To => Base.Targets_Sets,
File => Shortname.all,
Description => N);
elsif Node_Name (N) = "fallback_targets" then
Parse_Fallback_Targets_Set
(Append_To => Base.Fallback_Targets_Sets,
File => Shortname.all,
Description => N);
else
Put_Line (Standard_Error,
"Unknown XML tag in "
& Shortname.all & ": "
& Node_Name (N));
raise Invalid_Knowledge_Base;
end if;
N := Next_Sibling (N);
end loop;
else
Put_Line (Standard_Error,
"Invalid toplevel XML tag in "
& Shortname.all);
end if;
Free (Reader);
GNAT.Strings.Free (Shortname);
Next (Cur);
end loop;
In_Files.Clear;
exception
when Ada.Directories.Name_Error =>
Put_Verbose ("Directory not found: " & Directory);
when Invalid_Knowledge_Base | Knowledge_Base_Validation_Error =>
raise;
when E : XML_Fatal_Error =>
Put_Line (Standard_Error, Exception_Message (E));
raise Invalid_Knowledge_Base;
when XML_Validation_Error =>
Put_Line (Standard_Error, Get_Error_Message (Reader));
raise Knowledge_Base_Validation_Error;
when E : others =>
Put_Line
(Standard_Error,
"Unexpected exception while parsing knowledge base: "
& Exception_Information (E));
raise Invalid_Knowledge_Base;
end Parse_Knowledge_Base;
------------------------
-- Get_Variable_Value --
------------------------
function Get_Variable_Value
(Comp : Compiler;
Name : String) return String
is
N : constant Name_Id := Get_String (Name);
begin
if Variables_Maps.Contains (Comp.Variables, N) then
return Get_Name_String (Variables_Maps.Element (Comp.Variables, N));
elsif Name = "HOST" then
return Sdefault.Hostname;
elsif Name = "TARGET" then
return Get_Name_String (Comp.Target);
elsif Name = "RUNTIME_DIR" then
return Name_As_Directory (Get_Name_String (Comp.Runtime_Dir));
elsif Name = "EXEC" then
return Get_Name_String_Or_Null (Comp.Executable);
elsif Name = "VERSION" then
return Get_Name_String_Or_Null (Comp.Version);
elsif Name = "LANGUAGE" then
return Get_Name_String_Or_Null (Comp.Language_LC);
elsif Name = "RUNTIME" then
return Get_Name_String_Or_Null (Comp.Runtime);
elsif Name = "PREFIX" then
return Get_Name_String_Or_Null (Comp.Prefix);
elsif Name = "PATH" then
return Get_Name_String (Comp.Path);
elsif Name = "GPRCONFIG_PREFIX" then
return Executable_Prefix_Path;
end if;
raise Invalid_Knowledge_Base
with "variable '" & Name & "' is not defined";
end Get_Variable_Value;
--------------------------
-- Substitute_Variables --
--------------------------
function Substitute_Variables (Str : String) return String is
Str_Len : constant Natural := Str'Last;
Pos : Natural := Str'First;
Last : Natural := Pos;
Result : Unbounded_String;
Word_Start, Word_End, Tmp : Natural;
Has_Index : Boolean;
begin
while Pos < Str_Len loop
if Str (Pos) = '$' and then Str (Pos + 1) = '$' then
Append (Result, Str (Last .. Pos - 1));
Append (Result, "$");
Last := Pos + 2;
Pos := Last;
elsif Str (Pos) = '$' then
if Str (Pos + 1) = '{' then
Word_Start := Pos + 2;
Tmp := Pos + 2;
while Tmp <= Str_Len and then Str (Tmp) /= '}' loop
Tmp := Tmp + 1;
end loop;
Tmp := Tmp + 1;
Word_End := Tmp - 2;
else
Word_Start := Pos + 1;
Tmp := Pos + 1;
while Tmp <= Str_Len
and then (Is_Alphanumeric (Str (Tmp)) or else Str (Tmp) = '_')
loop
Tmp := Tmp + 1;
end loop;
Word_End := Tmp - 1;
end if;
Append (Result, Str (Last .. Pos - 1));
Has_Index := False;
for W in Word_Start .. Word_End loop
if Str (W) = '(' then
Has_Index := True;
if Str (Word_End) /= ')' then
Put_Line
(Standard_Error,
"Missing closing parenthesis in variable name: "
& Str (Word_Start .. Word_End));
raise Invalid_Knowledge_Base;
else
Append
(Result,
Callback
(Var_Name => Str (Word_Start .. W - 1),
Index => Str (W + 1 .. Word_End - 1)));
end if;
exit;
end if;
end loop;
if not Has_Index then
Append (Result, Callback (Str (Word_Start .. Word_End), ""));
end if;
Last := Tmp;
Pos := Last;
else
Pos := Pos + 1;
end if;
end loop;
Append (Result, Str (Last .. Str_Len));
return To_String (Result);
end Substitute_Variables;
--------------------------------------------------
-- Substitute_Variables_In_Compiler_Description --
--------------------------------------------------
function Substitute_Variables_In_Compiler_Description
(Str : String;
Comp : Compiler) return String
is
function Callback (Var_Name, Index : String) return String;
--------------
-- Callback --
--------------
function Callback (Var_Name, Index : String) return String is
begin
if Index /= "" then
Put_Line
(Standard_Error,
"Indexed variables only allowed in <configuration> (in "
& Var_Name & "(" & Index & ")");
raise Invalid_Knowledge_Base;
end if;
return Get_Variable_Value (Comp, Var_Name);
end Callback;
function Do_Substitute is new Substitute_Variables (Callback);
begin
return Do_Substitute (Str);
end Substitute_Variables_In_Compiler_Description;
-------------------------------------------
-- Substitute_Variables_In_Configuration --
-------------------------------------------
function Substitute_Variables_In_Configuration
(Base : Knowledge_Base;
Str : String;
Comps : Compiler_Lists.List) return String
is
function Callback (Var_Name, Index : String) return String;
--------------
-- Callback --
--------------
function Callback (Var_Name, Index : String) return String is
C : Compiler_Lists.Cursor;
Comp : Compiler_Access;
Idx : constant Name_Id := Get_String_Or_No_Name (To_Lower (Index));
begin
if Var_Name = "GPRCONFIG_PREFIX" then
return Executable_Prefix_Path;
elsif Index = "" then
if Var_Name = "TARGET"
and then not Is_Empty (Comps)
then
-- Can have an optional language index.
-- If there is no index, all compilers share the same target,
-- so just take that of the first compiler in the list
return Normalized_Target
(Base,
Compiler_Lists.Element (First (Comps)).Targets_Set);
else
Put_Line
(Standard_Error,
"Ambiguous variable substitution, need to specify the"
& " language (in " & Var_Name & ")");
raise Invalid_Knowledge_Base;
end if;
else
C := First (Comps);
while Has_Element (C) loop
Comp := Compiler_Lists.Element (C);
if Comp.Selected
and then Comp.Language_LC = Idx
then
return Get_Variable_Value (Comp.all, Var_Name);
end if;
Next (C);
end loop;
end if;
return "";
end Callback;
function Do_Substitute is new Substitute_Variables (Callback);
begin
return Do_Substitute (Str);
end Substitute_Variables_In_Configuration;
--------------------
-- Parse_All_Dirs --
--------------------
procedure Parse_All_Dirs
(Processed_Value : out External_Value_Lists.List;
Visited : in out String_To_External_Value.Map;
Current_Dir : String;
Path_To_Check : String;
Regexp : Pattern_Matcher;
Regexp_Str : String;
Value_If_Match : Name_Id;
Group : Integer;
Group_Match : String := "";
Group_Count : Natural := 0;
Contents : Pattern_Matcher_Access := null;
Merge_Same_Dirs : Boolean)
is
procedure Save_File (Current_Dir : String; Val : Name_Id);
-- Mark the given directory as valid for the <directory> configuration.
-- This takes care of removing duplicates if needed.
---------------
-- Save_File --
---------------
procedure Save_File (Current_Dir : String; Val : Name_Id) is
begin
if not Merge_Same_Dirs then
Put_Verbose ("<dir>: SAVE " & Current_Dir);
Append
(Processed_Value,
(Value => Val,
Alternate => No_Name,
Extracted_From => Get_String_No_Adalib (Current_Dir)));
else
declare
use String_To_External_Value;
Normalized : constant String := Normalize_Pathname
(Name => Current_Dir,
Directory => "",
Resolve_Links => True,
Case_Sensitive => True);
Prev : External_Value_Lists.Cursor;
Rec : External_Value_Item;
begin
if Visited.Contains (Normalized) then
Put_Verbose ("<dir>: ALREADY FOUND ("
& Get_Name_String (Val) & ") "
& Current_Dir);
Prev := Visited.Element (Normalized);
Rec := External_Value_Lists.Element (Prev);
Rec.Alternate := Val;
External_Value_Lists.Replace_Element
(Container => Processed_Value,
Position => Prev,
New_Item => Rec);
else
Put_Verbose ("<dir>: SAVE (" & Get_Name_String (Val)
& ") " & Current_Dir);
Append
(Processed_Value,
(Value => Val,
Alternate => No_Name,
Extracted_From => Get_String_No_Adalib (Current_Dir)));
Visited.Include
(Normalized, External_Value_Lists.Last (Processed_Value));
end if;
end;
end if;
end Save_File;
First : constant Integer := Path_To_Check'First;
Last : Integer;
Val : Name_Id;
begin
if Path_To_Check'Length = 0
or else Path_To_Check = "/"
or else Path_To_Check = "" & Directory_Separator
then
if Group = -1 then
Val := Value_If_Match;
else
Val := Get_String (Group_Match);
end if;
if Contents /= null
and then Is_Regular_File (Current_Dir)
then
Put_Verbose ("<dir>: Checking inside file " & Current_Dir);
declare
F : File_Type;
begin
Open (F, In_File, Current_Dir);
while not End_Of_File (F) loop
declare
Line : constant String := Get_Line (F);
begin
Put_Verbose ("<dir>: read line " & Line);
if Match (Contents.all, Line) then
Save_File
(Normalize_Pathname
(Name => Line,
Directory => Dir_Name (Current_Dir),
Resolve_Links => True),
Val);
exit;
end if;
end;
end loop;
Close (F);
end;
else
Save_File (Current_Dir, Val);
end if;
else
-- Do not split on '\', since we document we only accept UNIX paths
-- anyway. This leaves \ for regexp quotes
Last := First + 1;
while Last <= Path_To_Check'Last
and then Path_To_Check (Last) /= '/'
loop
Last := Last + 1;
end loop;
-- If we do not have a regexp.
if not Is_Regexp (Path_To_Check (First .. Last - 1)) then
declare
Dir : constant String :=
Normalize_Pathname
(Current_Dir, Resolve_Links => False)
& Directory_Separator
& Unquote (Path_To_Check (First .. Last - 1));
Remains : constant String :=
Path_To_Check (Last + 1 .. Path_To_Check'Last);
begin
if (Remains'Length = 0
or else Remains = "/"
or else Remains = "" & Directory_Separator)
and then Is_Regular_File (Dir)
then
Put_Verbose ("<dir>: Found file " & Dir);
-- If there is such a subdir, keep checking
Parse_All_Dirs
(Processed_Value => Processed_Value,
Visited => Visited,
Current_Dir => Dir,
Path_To_Check => Remains,
Regexp => Regexp,
Regexp_Str => Regexp_Str,
Value_If_Match => Value_If_Match,
Group => Group,
Group_Match => Group_Match,
Group_Count => Group_Count,
Contents => Contents,
Merge_Same_Dirs => Merge_Same_Dirs);
elsif Is_Directory (Dir) then
Put_Verbose ("<dir>: Recurse into " & Dir);
-- If there is such a subdir, keep checking
Parse_All_Dirs
(Processed_Value => Processed_Value,
Visited => Visited,
Current_Dir => Dir & Directory_Separator,
Path_To_Check => Remains,
Regexp => Regexp,
Regexp_Str => Regexp_Str,
Value_If_Match => Value_If_Match,
Group => Group,
Group_Match => Group_Match,
Group_Count => Group_Count,
Contents => Contents,
Merge_Same_Dirs => Merge_Same_Dirs);
else
Put_Verbose ("<dir>: No such directory: " & Dir);
end if;
end;
-- Else we have a regexp, check all files
else
declare
File_Re : constant String :=
Path_To_Check (First .. Last - 1);
File_Regexp : constant Pattern_Matcher := Compile (File_Re);
Search : Search_Type;
File : Directory_Entry_Type;
Filter : Ada.Directories.Filter_Type;
begin
if Current_Verbosity /= Default and then File_Re = ".." then
Put_Verbose
("Potential error: .. is generally not meant as a regexp,"
& " and should be quoted in this case, as in \.\.");
end if;
if Path_To_Check (Last) = '/' then
Put_Verbose
("<dir>: Check directories in " & Current_Dir
& " that match " & File_Re);
Filter := (Directory => True, others => False);
else
Put_Verbose
("<dir>: Check files in " & Current_Dir
& " that match " & File_Re);
Filter := (others => True);
end if;
Start_Search
(Search => Search,
Directory => Current_Dir,
Filter => Filter,
Pattern => "");
while More_Entries (Search) loop
Get_Next_Entry (Search, File);
if Simple_Name (File) /= "."
and then Simple_Name (File) /= ".."
then
declare
Matched : Match_Array (0 .. Integer'Max (Group, 0));
Simple : constant String := Simple_Name (File);
Count : constant Natural :=
Paren_Count (File_Regexp);
begin
Match (File_Regexp, Simple, Matched);
if Matched (0) /= No_Match then
Put_Verbose
("<dir>: Matched " & Simple_Name (File));
if Group_Count < Group
and then Group_Count + Count >= Group
then
Put_Verbose
("<dir>: Found matched group: "
& Simple (Matched (Group - Group_Count).First
.. Matched (Group - Group_Count).Last));
Parse_All_Dirs
(Processed_Value => Processed_Value,
Visited => Visited,
Current_Dir =>
Full_Name (File) & Directory_Separator,
Path_To_Check => Path_To_Check
(Last + 1 .. Path_To_Check'Last),
Regexp => Regexp,
Regexp_Str => Regexp_Str,
Value_If_Match => Value_If_Match,
Group => Group,
Group_Match =>
Simple (Matched (Group - Group_Count).First
.. Matched (Group - Group_Count).Last),
Group_Count => Group_Count + Count,
Contents => Contents,
Merge_Same_Dirs => Merge_Same_Dirs);
else
Parse_All_Dirs
(Processed_Value => Processed_Value,
Visited => Visited,
Current_Dir =>
Full_Name (File) & Directory_Separator,
Path_To_Check => Path_To_Check
(Last + 1 .. Path_To_Check'Last),
Regexp => Regexp,
Regexp_Str => Regexp_Str,
Value_If_Match => Value_If_Match,
Group => Group,
Group_Match => Group_Match,
Group_Count => Group_Count + Count,
Contents => Contents,
Merge_Same_Dirs => Merge_Same_Dirs);
end if;
end if;
end;
end if;
end loop;
end;
end if;
end if;
end Parse_All_Dirs;
------------------------
-- Get_External_Value --
------------------------
procedure Get_External_Value
(Attribute : String;
Value : External_Value;
Comp : Compiler;
Split_Into_Words : Boolean := True;
Merge_Same_Dirs : Boolean := False;
Processed_Value : out External_Value_Lists.List)
is
Saved_Path : constant String :=
Ada.Environment_Variables.Value ("PATH");
Status : aliased Integer;
Extracted_From : Name_Id := No_Name;
Tmp_Result : Unbounded_String;
Node_Cursor : External_Value_Nodes.Cursor := First (Value);
Node : External_Value_Node;
From_Static : Boolean := False;
Visited : String_To_External_Value.Map;
begin
Clear (Processed_Value);
while Has_Element (Node_Cursor) loop
while Has_Element (Node_Cursor) loop
Node := External_Value_Nodes.Element (Node_Cursor);
case Node.Typ is
when Value_Variable =>
Extracted_From := Node.Var_Name;
when Value_Constant =>
if Node.Value = No_Name then
Tmp_Result := Null_Unbounded_String;
else
Tmp_Result := To_Unbounded_String
(Substitute_Variables_In_Compiler_Description
(Get_Name_String (Node.Value), Comp));
end if;
From_Static := True;
Put_Verbose
(Attribute & ": constant := " & To_String (Tmp_Result));
when Value_Shell =>
Ada.Environment_Variables.Set
("PATH",
Get_Name_String (Comp.Path)
& Path_Separator & Saved_Path);
declare
Command : constant String :=
Substitute_Variables_In_Compiler_Description
(Get_Name_String (Node.Command), Comp);
begin
Tmp_Result := Null_Unbounded_String;
declare
Args : Argument_List_Access :=
Argument_String_To_List (Command);
Output : constant String := Get_Command_Output
(Command => Args (Args'First).all,
Arguments => Args (Args'First + 1 .. Args'Last),
Input => "",
Status => Status'Unchecked_Access,
Err_To_Out => True);
begin
GNAT.Strings.Free (Args);
Ada.Environment_Variables.Set ("PATH", Saved_Path);
Tmp_Result := To_Unbounded_String (Output);
if Current_Verbosity = High then
Put_Verbose (Attribute & ": executing """ & Command
& """ output=""" & Output & """");
elsif Current_Verbosity = Medium then
Put_Verbose
(Attribute & ": executing """ & Command
& """ output=<use -v -v> no match");
end if;
end;
exception
when Invalid_Process =>
Put_Verbose ("Spawn failed for " & Command);
end;
when Value_Directory =>
declare
Search : constant String :=
Substitute_Variables_In_Compiler_Description
(Get_Name_String (Node.Directory), Comp);
begin
if Search (Search'First) = '/' then
Put_Verbose
(Attribute & ": search directories matching "
& Search & ", starting from /", 1);
Parse_All_Dirs
(Processed_Value => Processed_Value,
Visited => Visited,
Current_Dir => "",
Path_To_Check => Search,
Contents => Node.Contents,
Regexp =>
Compile (Search (Search'First + 1
.. Search'Last)),
Regexp_Str => Search,
Value_If_Match => Node.Dir_If_Match,
Merge_Same_Dirs => Merge_Same_Dirs,
Group => Node.Directory_Group);
else
if Current_Verbosity /= Default then
Put_Verbose
(Attribute & ": search directories matching "
& Search & ", starting from "
& Get_Name_String (Comp.Path), 1);
end if;
Parse_All_Dirs
(Processed_Value => Processed_Value,
Visited => Visited,
Current_Dir => Get_Name_String (Comp.Path),
Path_To_Check => Search,
Contents => Node.Contents,
Regexp => Compile (Search),
Regexp_Str => Search,
Value_If_Match => Node.Dir_If_Match,
Merge_Same_Dirs => Merge_Same_Dirs,
Group => Node.Directory_Group);
end if;
Put_Verbose ("Done search directories", -1);
end;
when Value_Grep =>
declare
Matched : Match_Array (0 .. Node.Group);
Tmp_Str : constant String := To_String (Tmp_Result);
begin
Match (Node.Regexp_Re.all, Tmp_Str, Matched);
if Matched (0) /= No_Match then
Tmp_Result := To_Unbounded_String
(Tmp_Str (Matched (Node.Group).First ..
Matched (Node.Group).Last));
Put_Verbose (Attribute & ": grep matched="""
& To_String (Tmp_Result) & """");
else
Tmp_Result := Null_Unbounded_String;
Put_Verbose (Attribute & ": grep no match");
end if;
end;
when Value_Nogrep =>
declare
Matched : Match_Array (0 .. 0);
Tmp_Str : constant String := To_String (Tmp_Result);
begin
Match (Node.Regexp_No.all, Tmp_Str, Matched);
if Matched (0) /= No_Match then
Put_Verbose (Attribute & ": nogrep matched="""
& Tmp_Str & """");
raise Ignore_Compiler;
else
Put_Verbose (Attribute & ": nogrep no match");
end if;
end;
when Value_Must_Match =>
if not Match
(Expression => Get_Name_String (Node.Must_Match),
Data => To_String (Tmp_Result))
then
if Current_Verbosity /= Default then
Put_Verbose
("Ignore compiler since external value """
& To_String (Tmp_Result) & """ must match "
& Get_Name_String (Node.Must_Match));
end if;
Tmp_Result := Null_Unbounded_String;
raise Ignore_Compiler;
end if;
exit;
when Value_Done
| Value_Filter =>
exit;
end case;
Next (Node_Cursor);
end loop;
case Node.Typ is
when Value_Done | Value_Filter | Value_Must_Match =>
if Tmp_Result = Null_Unbounded_String then
-- Value could not be computed
if Extracted_From /= No_Name then
Append
(Processed_Value,
External_Value_Item'
(Value => No_Name,
Alternate => No_Name,
Extracted_From => Extracted_From));
end if;
elsif Split_Into_Words then
declare
Split : String_Lists.List;
C : String_Lists.Cursor;
Filter : Name_Id;
begin
if Node.Typ = Value_Filter then
Filter := Node.Filter;
else
Filter := No_Name;
end if;
-- When an external value is defined as a static string,
-- the only valid separator is ','. When computed
-- however, we also allow space as a separator
if From_Static then
Get_Words
(Words => To_String (Tmp_Result),
Filter => Filter,
Separator1 => ',',
Separator2 => ',',
Map => Split,
Allow_Empty_Elements => False);
else
Get_Words
(Words => To_String (Tmp_Result),
Filter => Filter,
Separator1 => ' ',
Separator2 => ',',
Map => Split,
Allow_Empty_Elements => False);
end if;
C := First (Split);
while Has_Element (C) loop
Append
(Processed_Value,
External_Value_Item'
(Value => Get_String
(String_Lists.Element (C)),
Alternate => No_Name,
Extracted_From => Extracted_From));
Next (C);
end loop;
end;
else
Append
(Processed_Value,
External_Value_Item'
(Value => Get_String (To_String (Tmp_Result)),
Alternate => No_Name,
Extracted_From => Extracted_From));
end if;
when others =>
null;
end case;
Extracted_From := No_Name;
Next (Node_Cursor);
end loop;
end Get_External_Value;
---------------
-- Get_Words --
---------------
procedure Get_Words
(Words : String;
Filter : Name_Id;
Separator1 : Character;
Separator2 : Character;
Map : out String_Lists.List;
Allow_Empty_Elements : Boolean)
is
First : Integer := Words'First;
Last : Integer;
Filter_Set : String_Lists.List;
begin
if Filter /= No_Name then
Get_Words (Get_Name_String (Filter), No_Name, Separator1,
Separator2, Filter_Set,
Allow_Empty_Elements => True);
end if;
if not Allow_Empty_Elements then
while First <= Words'Last
and then (Words (First) = Separator1
or else Words (First) = Separator2)
loop
First := First + 1;
end loop;
end if;
while First <= Words'Last loop
if Words (First) /= Separator1
and then Words (First) /= Separator2
then
Last := First + 1;
while Last <= Words'Last
and then Words (Last) /= Separator1
and then Words (Last) /= Separator2
loop
Last := Last + 1;
end loop;
else
Last := First;
end if;
if (Allow_Empty_Elements or else First <= Last - 1)
and then
(Is_Empty (Filter_Set)
or else Contains (Filter_Set, Words (First .. Last - 1)))
then
Append (Map, Words (First .. Last - 1));
end if;
First := Last + 1;
end loop;
end Get_Words;
------------------------------
-- Foreach_Language_Runtime --
------------------------------
procedure Foreach_Language_Runtime
(Iterator : in out Compiler_Iterator'Class;
Base : in out Knowledge_Base;
Name : Name_Id;
Executable : Name_Id;
Directory : String;
Prefix : Name_Id;
From_Extra_Dir : Boolean;
On_Target : Targets_Set_Id;
Descr : Compiler_Description;
Path_Order : Integer;
Continue : out Boolean)
is
Target : External_Value_Lists.List;
Version : External_Value_Lists.List;
Languages : External_Value_Lists.List;
Runtimes : External_Value_Lists.List;
Variables : External_Value_Lists.List;
Comp : Compiler;
C, C2 : External_Value_Lists.Cursor;
CS : String_Lists.Cursor;
begin
Continue := True;
-- verify that the compiler is indeed a real executable
-- on Windows and not a cygwin symbolic link
if On_Windows
and then not Is_Windows_Executable
(Directory & Directory_Separator & Get_Name_String (Executable))
then
Continue := True;
return;
end if;
Comp.Name := Name;
Comp.Path := Get_String
(Name_As_Directory
(Normalize_Pathname (Directory, Case_Sensitive => False)));
Comp.Base_Name := Get_String
(GNAT.Directory_Operations.Base_Name
(Get_Name_String (Executable), Suffix => Exec_Suffix.all));
Comp.Path_Order := Path_Order;
Comp.Prefix := Prefix;
Comp.Executable := Executable;
-- Check the target first, for efficiency. If it doesn't match, no need
-- to compute other attributes.
if Executable /= No_Name then
if not Is_Empty (Descr.Target) then
Get_External_Value
("target",
Value => Descr.Target,
Comp => Comp,
Split_Into_Words => False,
Processed_Value => Target);
if not Is_Empty (Target) then
Comp.Target :=
External_Value_Lists.Element (First (Target)).Value;
Get_Targets_Set
(Base, Get_Name_String (Comp.Target), Comp.Targets_Set);
else
Put_Verbose ("Target unknown for this compiler");
Comp.Targets_Set := Unknown_Targets_Set;
end if;
if On_Target /= All_Target_Sets
and then Comp.Targets_Set /= On_Target
then
Put_Verbose
("Target for this compiler does not match --target");
Continue := True;
return;
end if;
else
Put_Verbose ("Target unspecified, always match");
Comp.Targets_Set := All_Target_Sets;
end if;
-- Then get the value of the remaining attributes. For most of them,
-- we must be able to find a valid value, or the compiler is simply
-- ignored
Get_External_Value
("version",
Value => Descr.Version,
Comp => Comp,
Split_Into_Words => False,
Processed_Value => Version);
if Is_Empty (Version) then
Put_Verbose ("Ignore compiler, since couldn't guess its version");
Continue := True;
return;
end if;
Comp.Version := External_Value_Lists.Element (First (Version)).Value;
Get_External_Value
("variables",
Value => Descr.Variables,
Comp => Comp,
Split_Into_Words => False,
Processed_Value => Variables);
C := First (Variables);
while Has_Element (C) loop
declare
Ext : constant External_Value_Item :=
External_Value_Lists.Element (C);
begin
if Ext.Value = No_Name then
if Current_Verbosity /= Default then
Put_Verbose
("Ignore compiler since variable '"
& Get_Name_String (Ext.Extracted_From) & "' is empty");
end if;
Continue := True;
return;
end if;
if Variables_Maps.Contains
(Comp.Variables, Ext.Extracted_From)
then
Put_Line
(Standard_Error, "Variable '"
& Get_Name_String (Ext.Extracted_From)
& "' is already defined");
else
Variables_Maps.Insert
(Comp.Variables, Ext.Extracted_From, Ext.Value);
end if;
end;
Next (C);
end loop;
end if;
Get_External_Value
("languages",
Value => Descr.Languages,
Comp => Comp,
Split_Into_Words => True,
Processed_Value => Languages);
if Is_Empty (Languages) then
Put_Verbose ("Ignore compiler, since no language could be computed");
Continue := True;
return;
end if;
if Executable /= No_Name then
Get_External_Value
("runtimes",
Value => Descr.Runtimes,
Comp => Comp,
Split_Into_Words => True,
Merge_Same_Dirs => True,
Processed_Value => Runtimes);
Comp.Default_Runtime := True;
Comp.Any_Runtime := False;
if not Is_Empty (Runtimes) then
-- This loop makes sure that the default runtime appears first in
-- the list (and thus is selected automatically when using
-- --batch). This doesn't impact the interactive display, where
-- the runtimes will be sorted alphabetically anyway (see
-- Display_Before)
Comp.Default_Runtime := False;
Comp.Any_Runtime := True;
CS := First (Descr.Default_Runtimes);
Defaults_Loop :
while Has_Element (CS) loop
C2 := First (Runtimes);
while Has_Element (C2) loop
if Get_Name_String (External_Value_Lists.Element (C2).Value)
= String_Lists.Element (CS)
then
Prepend (Runtimes, External_Value_Lists.Element (C2));
Delete (Runtimes, C2);
Comp.Default_Runtime := True;
exit Defaults_Loop;
end if;
Next (C2);
end loop;
Next (CS);
end loop Defaults_Loop;
end if;
end if;
C := First (Languages);
while Has_Element (C) loop
declare
L : constant Name_Id := External_Value_Lists.Element (C).Value;
begin
Comp.Language_Case := L;
Comp.Language_LC := Get_String (To_Lower (Get_Name_String (L)));
-- First check if a runtime specified with option --config= will
-- match.
Callback
(Iterator => Iterator,
Base => Base,
Comp => Comp,
Runtime_Specified => True,
From_Extra_Dir => From_Extra_Dir,
Continue => Continue);
if not Continue then
return;
end if;
if Is_Empty (Runtimes) then
if Descr.Runtimes /= Null_External_Value then
Put_Verbose ("No runtime found where one is required for: "
& Get_Name_String (Comp.Path));
else
Callback
(Iterator => Iterator,
Base => Base,
Comp => Comp,
Runtime_Specified => False,
From_Extra_Dir => From_Extra_Dir,
Continue => Continue);
if not Continue then
return;
end if;
end if;
else
C2 := First (Runtimes);
while Has_Element (C2) loop
Comp.Runtime := External_Value_Lists.Element (C2).Value;
Comp.Alt_Runtime :=
External_Value_Lists.Element (C2).Alternate;
Comp.Runtime_Dir :=
External_Value_Lists.Element (C2).Extracted_From;
Callback
(Iterator => Iterator,
Base => Base,
Comp => Comp,
Runtime_Specified => False,
From_Extra_Dir => From_Extra_Dir,
Continue => Continue);
if not Continue then
return;
end if;
Next (C2);
end loop;
end if;
end;
Next (C);
end loop;
exception
when Ignore_Compiler =>
null;
end Foreach_Language_Runtime;
---------------
-- To_String --
---------------
function To_String
(Base : Knowledge_Base;
Comp : Compiler;
As_Config_Arg : Boolean;
Show_Target : Boolean := False;
Rank_In_List : Integer := -1;
Parser_Friendly : Boolean := False) return String
is
function Runtime_Or_Alternate return String;
function Runtime_Or_Empty return String;
function Rank return String;
function Target return String;
-- Return various aspects of the compiler;
--------------------------
-- Runtime_Or_Alternate --
--------------------------
function Runtime_Or_Alternate return String is
begin
if Comp.Alt_Runtime /= No_Name then
return Get_Name_String (Comp.Alt_Runtime);
elsif Comp.Runtime /= No_Name then
return Get_Name_String (Comp.Runtime);
else
return "";
end if;
end Runtime_Or_Alternate;
----------------------
-- Runtime_Or_Empty --
----------------------
function Runtime_Or_Empty return String is
begin
if Comp.Runtime /= No_Name then
if Comp.Alt_Runtime = No_Name then
return " (" & Get_Name_String (Comp.Runtime) & " runtime)";
else
return
" (" & Get_Name_String (Comp.Runtime) &
" [" & Get_Name_String (Comp.Alt_Runtime) &
"] runtime)";
end if;
else
return "";
end if;
end Runtime_Or_Empty;
----------
-- Rank --
----------
function Rank return String is
Result : String (1 .. 4) := " ";
Img : constant String := Rank_In_List'Img;
begin
if Rank_In_List > 0 then
Result (4 - Img'Length + 1 .. 4) := Img;
end if;
if Comp.Selected then
Result (1) := '*';
end if;
return Result;
end Rank;
------------
-- Target --
------------
function Target return String is
begin
if Show_Target then
return " on " & Get_Name_String (Comp.Target);
else
return "";
end if;
end Target;
begin
if As_Config_Arg then
return Get_Name_String_Or_Null (Comp.Language_Case)
& ',' & Get_Name_String_Or_Null (Comp.Version)
& ',' & Get_Name_String_Or_Null (Comp.Runtime)
& ',' & Get_Name_String_Or_Null (Comp.Path)
& ',' & Get_Name_String_Or_Null (Comp.Name);
elsif Parser_Friendly then
return Rank & " target:"
& Get_Name_String_Or_Null (Comp.Target) & ASCII.LF
& Rank & " normalized_target:"
& Normalized_Target (Base, Comp.Targets_Set) & ASCII.LF
& Rank & " executable:"
& Get_Name_String_Or_Null (Comp.Executable) & ASCII.LF
& Rank & " path:"
& Get_Name_String_Or_Null (Comp.Path) & ASCII.LF
& Rank & " lang:"
& Get_Name_String_Or_Null (Comp.Language_Case) & ASCII.LF
& Rank & " name:"
& Get_Name_String_Or_Null (Comp.Name) & ASCII.LF
& Rank & " version:"
& Get_Name_String_Or_Null (Comp.Version) & ASCII.LF
& Rank & " runtime:"
& Runtime_Or_Alternate & ASCII.LF
& Rank & " native:"
& Boolean'Image
(Query_Targets_Set (Base, Hostname) = Comp.Targets_Set);
elsif Comp.Executable = No_Name then
-- A language that requires no compiler
return Rank
& ". "
& Get_Name_String_Or_Null (Comp.Language_Case)
& " (no compiler required)";
else
return Rank
& ". "
& Get_Name_String_Or_Null (Comp.Name) & " for "
& Get_Name_String_Or_Null (Comp.Language_Case)
& " in " & Get_Name_String_Or_Null (Comp.Path)
& Target
& " version " & Get_Name_String_Or_Null (Comp.Version)
& Runtime_Or_Empty;
end if;
end To_String;
---------------
-- To_String --
---------------
function To_String
(Base : Knowledge_Base;
Compilers : Compiler_Lists.List;
Selected_Only : Boolean;
Show_Target : Boolean := False;
Parser_Friendly : Boolean := False) return String
is
Comp : Compiler_Lists.Cursor := First (Compilers);
Result : Unbounded_String;
Rank : Natural := 1;
begin
while Has_Element (Comp) loop
if Compiler_Lists.Element (Comp).Selected
or else (not Selected_Only
and then Compiler_Lists.Element (Comp).Selectable)
then
Append
(Result,
To_String
(Base,
Compiler_Lists.Element (Comp).all, False,
Show_Target => Show_Target,
Rank_In_List => Rank,
Parser_Friendly => Parser_Friendly));
Append (Result, ASCII.LF);
end if;
Rank := Rank + 1;
Next (Comp);
end loop;
return To_String (Result);
end To_String;
-----------------------------
-- Foreach_Compiler_In_Dir --
-----------------------------
procedure Foreach_Compiler_In_Dir
(Iterator : in out Compiler_Iterator'Class;
Base : in out Knowledge_Base;
Directory : String;
From_Extra_Dir : Boolean;
On_Target : Targets_Set_Id;
Path_Order : Integer;
Continue : out Boolean)
is
use CDM;
function Executable_Pattern return String;
pragma Inline (Executable_Pattern);
-- Returns a pattern which matchs executable
------------------------
-- Executable_Pattern --
------------------------
function Executable_Pattern return String is
begin
if On_Windows then
return "*.{exe,bat,cmd}";
else
return "";
end if;
end Executable_Pattern;
C : CDM.Cursor;
Search : Search_Type;
Dir : Directory_Entry_Type;
begin
-- Since the name of an executable can be a regular expression, we need
-- to look at all files in the directory to see if they match. This
-- requires more system calls than if the name was always a simple
-- string. So we first check which of the two algorithms should be used.
Continue := True;
if Current_Verbosity /= Default then
Put_Verbose ("Foreach compiler in "
& Directory & " regexp="
& Boolean'Image (Base.Check_Executable_Regexp)
& " extra_dir=" & From_Extra_Dir'Img,
1);
end if;
if Base.Check_Executable_Regexp then
begin
Start_Search
(Search => Search,
Directory => Directory,
Pattern => Executable_Pattern);
exception
when Ada.Directories.Name_Error =>
Put_Verbose ("No such directory:" & Directory, -1);
Continue := True;
return;
when Ada.Directories.Use_Error =>
Put_Verbose ("Directory not readable:" & Directory, -1);
Continue := True;
return;
end;
For_All_Files_In_Dir : loop
begin
exit For_All_Files_In_Dir when not More_Entries (Search);
Get_Next_Entry (Search, Dir);
C := First (Base.Compilers);
while Has_Element (C) loop
declare
Config : constant Compiler_Description :=
CDM.Element (C);
Simple : constant String := Simple_Name (Dir);
Matches : Match_Array
(0 .. Integer'Max (0, Config.Prefix_Index));
Matched : Boolean;
Prefix : Name_Id := No_Name;
begin
-- A language with no expected compiler => always match
if Config.Executable = No_Name then
Put_Verbose
(Get_Name_String (Key (C))
& " requires no compiler",
1);
Continue := True;
Foreach_Language_Runtime
(Iterator => Iterator,
Base => Base,
Name => Key (C),
Executable => No_Name,
Directory => "",
On_Target => Unknown_Targets_Set,
Prefix => No_Name,
From_Extra_Dir => From_Extra_Dir,
Descr => Config,
Path_Order => Path_Order,
Continue => Continue);
Put_Verbose ("", -1);
exit For_All_Files_In_Dir when not Continue;
Matched := False;
elsif Config.Executable_Re /= null then
Match
(Config.Executable_Re.all,
Data => Simple,
Matches => Matches);
Matched := Matches (0) /= No_Match;
else
Matched := (Get_Name_String (Config.Executable)
& Exec_Suffix.all) = Simple_Name (Dir);
end if;
if Matched then
Put_Verbose
(Get_Name_String (Key (C))
& " is candidate: filename=" & Simple,
1);
if Config.Executable_Re /= null
and then Config.Prefix_Index >= 0
and then Matches (Config.Prefix_Index) /=
No_Match
then
Prefix := Get_String
(Simple (Matches
(Config.Prefix_Index).First ..
Matches (Config.Prefix_Index).Last));
end if;
Continue := True;
Foreach_Language_Runtime
(Iterator => Iterator,
Base => Base,
Name => Key (C),
Executable => Get_String (Simple),
Directory => Directory,
On_Target => On_Target,
Prefix => Prefix,
From_Extra_Dir => From_Extra_Dir,
Descr => Config,
Path_Order => Path_Order,
Continue => Continue);
Put_Verbose ("", -1);
exit For_All_Files_In_Dir when not Continue;
end if;
end;
Next (C);
end loop;
exception
when Ada.Directories.Name_Error | Ada.Directories.Use_Error =>
null;
end;
end loop For_All_Files_In_Dir;
else
-- Do not search all entries in the directory, but check explictly
-- for the compilers. This results in a lot less system calls, and
-- thus is faster.
C := First (Base.Compilers);
while Has_Element (C) loop
declare
Config : constant Compiler_Description :=
CDM.Element (C);
F : constant String :=
Normalize_Pathname
(Name =>
Get_Name_String (Config.Executable),
Directory => Directory,
Resolve_Links => False,
Case_Sensitive =>
Case_Sensitive_Files) & Exec_Suffix.all;
begin
if Ada.Directories.Exists (F) then
Put_Verbose ("--------------------------------------");
Put_Verbose
("Processing "
& Get_Name_String (Config.Name) & " in " & Directory);
Foreach_Language_Runtime
(Iterator => Iterator,
Base => Base,
Name => Key (C),
Executable => Config.Executable,
Prefix => No_Name,
From_Extra_Dir => From_Extra_Dir,
On_Target => On_Target,
Directory => Directory,
Descr => Config,
Path_Order => Path_Order,
Continue => Continue);
exit when not Continue;
end if;
exception
when Ada.Directories.Name_Error | Ada.Directories.Use_Error =>
null;
when Ignore_Compiler =>
-- Nothing to do, the compiler has not been inserted
null;
end;
Next (C);
end loop;
end if;
Put_Verbose ("", -1);
end Foreach_Compiler_In_Dir;
------------------------------
-- Foreach_Compiler_In_Path --
------------------------------
procedure Foreach_Compiler_In_Path
(Iterator : in out Compiler_Iterator;
Base : in out Knowledge_Base;
On_Target : Targets_Set_Id;
Extra_Dirs : String := "")
is
Dirs : String_Lists.List;
Map : String_Lists.List;
procedure Process_Path
(Path : String; Prefix : Character; Prepend_To_List : Boolean);
-- Add a directory to the list of directories to examine
------------------
-- Process_Path --
------------------
procedure Process_Path
(Path : String; Prefix : Character; Prepend_To_List : Boolean)
is
First, Last : Natural;
begin
First := Path'First;
while First <= Path'Last loop
-- Skip null entries on PATH
if Path (First) = GNAT.OS_Lib.Path_Separator then
First := First + 1;
else
Last := First + 1;
while Last <= Path'Last
and then Path (Last) /= GNAT.OS_Lib.Path_Separator
loop
Last := Last + 1;
end loop;
declare
-- Use a hash to make sure we do not parse the same
-- directory twice. This is both more efficient and avoids
-- duplicates in the final result list. To handle the case
-- of links (on linux for instance /usr/bin/X11 points to
-- ".", ie /usr/bin, and compilers would appear duplicated),
-- we resolve symbolic links. This call is also set to fold
-- to lower-case when appropriate
Normalized : constant String :=
Name_As_Directory
(Normalize_Pathname
(Path (First .. Last - 1),
Resolve_Links => True,
Case_Sensitive => False));
begin
if not Contains (Map, Normalized) then
Append (Map, Normalized);
-- Rerun normalize_pathname without resolve_links so that
-- the displayed path looks familiar to the user (no ..,
-- ./ or quotes, but still using the path as shown in
-- $PATH)
declare
Final_Path : constant String :=
Normalize_Pathname
(Path (First .. Last - 1),
Resolve_Links => False,
Case_Sensitive => False);
begin
-- Windows is somewhat slow at parsing directories, do
-- not look into any directory under C:\windows as
-- there is no compiler to be found there anyway.
if not On_Windows
or else
(Final_Path'Length > 10
and then
To_Lower (Final_Path
(Final_Path'First .. Final_Path'First + 9)) /=
"c:\windows")
then
Put_Verbose ("Will examine "
& Prefix & " " & Final_Path);
if Prepend_To_List then
Prepend (Dirs, Prefix & Final_Path);
else
Append (Dirs, Prefix & Final_Path);
end if;
end if;
end;
end if;
end;
First := Last + 1;
end if;
end loop;
end Process_Path;
Dir : String_Lists.Cursor;
Path_Order : Positive := 1;
Continue : Boolean;
begin
-- Preprocess the list of directories that will be searched. When a
-- directory appears both in Extra_Dirs and in Path, we prepend it to
-- the PATH for optimization purposes: no need to look in all the PATH
-- if the compiler(s) will match in that directory. However, this has
-- the result that a command line with --config that specifies a path
-- and one that doesn't might find the second compiler in the same
-- path even if it is not the first one on the PATH. That's minor, and
-- a workaround is for the user to specify path for all --config args.
--
-- We will also need to know later whether the directory comes from
-- PATH or extra_dirs. If a directory appears in both, it is said to
-- come from PATH, so that all its compilers are taken into account.
-- As a special convention, the first character of the directory name is
-- set to 'E' if the dir comes from extra_dirs, or 'P' if it comes from
-- PATH.
if Ada.Environment_Variables.Exists ("PATH") then
Process_Path (Ada.Environment_Variables.Value ("PATH"), 'P', False);
end if;
if Extra_Dirs /= "" then
Process_Path (Extra_Dirs, 'E', Prepend_To_List => True);
end if;
Dir := First (Dirs);
while Has_Element (Dir) loop
declare
P : constant String := String_Lists.Element (Dir);
begin
Foreach_Compiler_In_Dir
(Iterator => Iterator,
Base => Base,
Directory => P (P'First + 1 .. P'Last),
From_Extra_Dir => P (P'First) = 'E',
Path_Order => Path_Order,
On_Target => On_Target,
Continue => Continue);
exit when not Continue;
end;
Path_Order := Path_Order + 1;
Next (Dir);
end loop;
end Foreach_Compiler_In_Path;
--------------------------
-- Known_Compiler_Names --
--------------------------
procedure Known_Compiler_Names
(Base : Knowledge_Base;
List : out Ada.Strings.Unbounded.Unbounded_String)
is
use CDM;
C : CDM.Cursor := First (Base.Compilers);
begin
List := Null_Unbounded_String;
while Has_Element (C) loop
if List /= Null_Unbounded_String then
Append (List, ",");
end if;
Append (List, Get_Name_String (Key (C)));
Next (C);
end loop;
end Known_Compiler_Names;
-----------
-- Match --
-----------
procedure Match
(Filter : Compilers_Filter;
Compilers : Compiler_Lists.List;
Matching_Compiler : out Compiler_Access;
Matched : out Boolean)
is
C : CFL.Cursor := First (Filter.Compiler);
M : Boolean;
begin
while Has_Element (C) loop
Match (CFL.Element (C), Compilers, Matching_Compiler, M);
if M then
Matched := not Filter.Negate;
return;
end if;
Next (C);
end loop;
Matched := Filter.Negate;
end Match;
------------------
-- Filter_Match --
------------------
function Filter_Match
(Base : Knowledge_Base;
Comp : Compiler;
Filter : Compiler) return Boolean is
begin
if Filter.Name /= No_Name
and then Comp.Name /= Filter.Name
and then Comp.Base_Name /= Filter.Name
then
if Current_Verbosity /= Default then
Put_Verbose ("Filter=" & To_String (Base, Filter, True)
& ": name does not match");
end if;
return False;
end if;
if Filter.Path /= No_Name and then Filter.Path /= Comp.Path then
if Current_Verbosity /= Default then
Put_Verbose ("Filter=" & To_String (Base, Filter, True)
& ": path does not match");
end if;
return False;
end if;
if Filter.Version /= No_Name and then Filter.Version /= Comp.Version then
if Current_Verbosity /= Default then
Put_Verbose ("Filter=" & To_String (Base, Filter, True)
& ": version does not match");
end if;
return False;
end if;
if Comp.Any_Runtime then
-- If compiler has no runtime node all runtimes should be accepted,
-- no need to apply filter.
if Filter.Runtime /= No_Name then
if not Is_Absolute_Path (Get_Name_String (Filter.Runtime)) and then
Filter.Runtime /= Comp.Runtime and then
Filter.Runtime /= Comp.Alt_Runtime
then
if Current_Verbosity /= Default then
Put_Verbose ("Filter=" & To_String (Base, Filter, True)
& ": runtime does not match");
end if;
return False;
end if;
elsif not Comp.Default_Runtime then
if Current_Verbosity /= Default then
Put_Verbose ("Filter=" & To_String (Base, Filter, True)
& ": no default runtime");
end if;
return False;
end if;
end if;
if Filter.Language_LC /= No_Name
and then Filter.Language_LC /= Comp.Language_LC
then
if Current_Verbosity /= Default then
Put_Verbose ("Filter=" & To_String (Base, Filter, True)
& ": language does not match");
end if;
return False;
end if;
return True;
end Filter_Match;
-----------
-- Match --
-----------
procedure Match
(Filter : Compiler_Filter;
Compilers : Compiler_Lists.List;
Matching_Compiler : out Compiler_Access;
Matched : out Boolean)
is
C : Compiler_Lists.Cursor := First (Compilers);
Comp : Compiler_Access;
begin
while Has_Element (C) loop
Comp := Compiler_Lists.Element (C);
if Comp.Selected
and then (Filter.Name = No_Name
or else Filter.Name = Comp.Name
or else Comp.Base_Name = Filter.Name)
and then
(Filter.Version_Re = null
or else
(Comp.Version /= No_Name
and then Match
(Filter.Version_Re.all, Get_Name_String (Comp.Version))))
and then (Filter.Runtime_Re = null
or else
(Comp.Runtime /= No_Name
and then Match
(Filter.Runtime_Re.all,
Get_Name_String (Comp.Runtime))))
and then (Filter.Language_LC = No_Name
or else Filter.Language_LC = Comp.Language_LC)
then
Matching_Compiler := Comp;
Matched := True;
return;
end if;
Next (C);
end loop;
Matched := False;
end Match;
-----------
-- Match --
-----------
procedure Match
(Filter : Compilers_Filter_Lists.List;
Compilers : Compiler_Lists.List;
Matching_Compiler : out Compiler_Access;
Matched : out Boolean)
is
C : Compilers_Filter_Lists.Cursor := First (Filter);
M : Boolean;
begin
while Has_Element (C) loop
Match (Compilers_Filter_Lists.Element (C),
Compilers, Matching_Compiler, M);
if not M then
Matched := False;
return;
end if;
Next (C);
end loop;
if Length (Filter) /= 1 then
Matching_Compiler := null;
end if;
Matched := True;
end Match;
-----------
-- Match --
-----------
function Match
(Target_Filter : String_Lists.List;
Negate : Boolean;
Compilers : Compiler_Lists.List) return Boolean
is
Target : String_Lists.Cursor := First (Target_Filter);
Comp : Compiler_Lists.Cursor;
begin
if Is_Empty (Target_Filter) then
return True;
else
while Has_Element (Target) loop
declare
Pattern : constant Pattern_Matcher :=
Compile
(String_Lists.Element (Target), Case_Insensitive);
begin
Comp := First (Compilers);
while Has_Element (Comp) loop
if Compiler_Lists.Element (Comp).Selected then
if Compiler_Lists.Element (Comp).Target = No_Name then
if Match (Pattern, "") then
return not Negate;
end if;
elsif Match
(Pattern,
Get_Name_String (Compiler_Lists.Element (Comp).Target))
then
return not Negate;
end if;
end if;
Next (Comp);
end loop;
end;
Next (Target);
end loop;
return Negate;
end if;
end Match;
-----------------
-- Skip_Spaces --
-----------------
procedure Skip_Spaces (Str : String; Index : in out Integer) is
begin
while Index <= Str'Last
and then (Str (Index) = ' ' or else Str (Index) = ASCII.LF)
loop
Index := Index + 1;
end loop;
end Skip_Spaces;
procedure Skip_Spaces_Backward (Str : String; Index : in out Integer) is
begin
while Index >= Str'First
and then (Str (Index) = ' ' or else Str (Index) = ASCII.LF)
loop
Index := Index - 1;
end loop;
end Skip_Spaces_Backward;
------------------
-- Merge_Config --
------------------
procedure Merge_Config
(Base : Knowledge_Base;
Packages : in out String_Maps.Map;
Compilers : Compiler_Lists.List;
Config : String)
is
procedure Add_Package
(Name : String; Chunk : String; Prefix : String := " ");
-- Add the chunk in the appropriate package
-----------------
-- Add_Package --
-----------------
procedure Add_Package
(Name : String; Chunk : String; Prefix : String := " ")
is
C : constant String_Maps.Cursor := Find (Packages, Name);
Replaced : constant String :=
Substitute_Variables_In_Configuration
(Base, Chunk, Compilers);
begin
if Replaced /= "" then
if Has_Element (C) then
Replace_Element
(Packages,
C,
String_Maps.Element (C) & ASCII.LF & Prefix & Replaced);
else
Insert
(Packages,
Name, Prefix & To_Unbounded_String (Replaced));
end if;
end if;
end Add_Package;
First : Integer := Config'First;
Pkg_Name_First, Pkg_Name_Last : Integer;
Pkg_Content_First : Integer;
Last : Integer;
begin
while First /= 0 and then First <= Config'Last loop
-- Do we have a toplevel attribute ?
Skip_Spaces (Config, First);
Pkg_Name_First := Index (Config (First .. Config'Last), "package ");
if Pkg_Name_First = 0 then
Pkg_Name_First := Config'Last + 1;
end if;
Last := Pkg_Name_First - 1;
Skip_Spaces_Backward (Config, Last);
Add_Package
(Name => "",
Chunk => Config (First .. Last),
Prefix => " ");
exit when Pkg_Name_First > Config'Last;
-- Parse the current package
Pkg_Name_First := Pkg_Name_First + 8; -- skip "package "
Skip_Spaces (Config, Pkg_Name_First);
Pkg_Name_Last := Pkg_Name_First + 1;
while Pkg_Name_Last <= Config'Last
and then Config (Pkg_Name_Last) /= ' '
and then Config (Pkg_Name_Last) /= ASCII.LF
loop
Pkg_Name_Last := Pkg_Name_Last + 1;
end loop;
Pkg_Content_First := Pkg_Name_Last + 1;
Skip_Spaces (Config, Pkg_Content_First);
Pkg_Content_First := Pkg_Content_First + 2; -- skip "is"
Skip_Spaces (Config, Pkg_Content_First);
Last := Index (Config (Pkg_Content_First .. Config'Last),
"end " & Config (Pkg_Name_First .. Pkg_Name_Last - 1));
if Last /= 0 then
First := Last - 1;
Skip_Spaces_Backward (Config, First);
Add_Package
(Name => Config (Pkg_Name_First .. Pkg_Name_Last - 1),
Chunk => Config (Pkg_Content_First .. First));
while Last <= Config'Last and then Config (Last) /= ';' loop
Last := Last + 1;
end loop;
Last := Last + 1;
end if;
First := Last;
end loop;
end Merge_Config;
-----------------
-- Put_Verbose --
-----------------
procedure Put_Verbose (Config : Configuration) is
C : Compilers_Filter_Lists.Cursor :=
First (Config.Compilers_Filters);
Comp_Filter : Compilers_Filter;
Comp : Compiler_Filter_Lists.Cursor;
Filter : Compiler_Filter;
begin
while Has_Element (C) loop
Comp_Filter := Compilers_Filter_Lists.Element (C);
Put_Verbose
("<compilers negate='" & Comp_Filter.Negate'Img & "'>", 1);
Comp := First (Comp_Filter.Compiler);
while Has_Element (Comp) loop
Filter := Compiler_Filter_Lists.Element (Comp);
Put_Verbose
("<compiler name='"
& Get_Name_String (Filter.Name) & "' version='"
& Get_Name_String (Filter.Version) & "' runtime='"
& Get_Name_String (Filter.Runtime) & "' language='"
& Get_Name_String (Filter.Language_LC) & "' />");
Next (Comp);
end loop;
Put_Verbose ("</compilers>", -1);
Next (C);
end loop;
Put_Verbose ("<config supported='" & Config.Supported'Img & "' />");
end Put_Verbose;
-------------------------
-- Is_Supported_Config --
-------------------------
function Is_Supported_Config
(Base : Knowledge_Base;
Compilers : Compiler_Lists.List) return Boolean
is
Config : Configuration_Lists.Cursor :=
First (Base.Configurations);
M : Boolean;
Matching_Compiler : Compiler_Access;
begin
while Has_Element (Config) loop
Match (Configuration_Lists.Element (Config).Compilers_Filters,
Compilers, Matching_Compiler, M);
if M and then Match
(Configuration_Lists.Element (Config).Targets_Filters,
Configuration_Lists.Element (Config).Negate_Targets,
Compilers)
then
if not Configuration_Lists.Element (Config).Supported then
if Current_Verbosity /= Default then
Put_Verbose
("Selected compilers are not compatible, because of:");
Put_Verbose (Configuration_Lists.Element (Config));
end if;
return False;
end if;
end if;
Next (Config);
end loop;
return True;
end Is_Supported_Config;
----------------------------
-- Generate_Configuration --
----------------------------
procedure Generate_Configuration
(Base : Knowledge_Base;
Compilers : Compiler_Lists.List;
Output_File : String;
Target : String)
is
Config : Configuration_Lists.Cursor :=
First (Base.Configurations);
Output : File_Type;
Packages : String_Maps.Map;
Selected_Compiler : Compiler_Access;
M : Boolean;
Project_Name : String := "Default";
procedure Gen (C : String_Maps.Cursor);
-- C is a cursor of the map "Packages"
-- Generate the chunk of the config file corresponding to the
-- given package.
procedure Gen_And_Remove (Name : String);
-- Generate the chunk of the config file corresponding to the
-- package name and remove it from the map.
---------
-- Gen --
---------
procedure Gen (C : String_Maps.Cursor) is
begin
if Key (C) /= "" then
New_Line (Output);
Put_Line (Output, " package " & Key (C) & " is");
end if;
Put_Line (Output, To_String (String_Maps.Element (C)));
if Key (C) /= "" then
Put_Line (Output, " end " & Key (C) & ";");
end if;
end Gen;
--------------------
-- Gen_And_Remove --
--------------------
procedure Gen_And_Remove (Name : String) is
C : String_Maps.Cursor := Find (Packages, Name);
begin
if Has_Element (C) then
Gen (C);
Delete (Packages, C);
end if;
end Gen_And_Remove;
begin
To_Mixed (Project_Name);
while Has_Element (Config) loop
Match (Configuration_Lists.Element (Config).Compilers_Filters,
Compilers, Selected_Compiler, M);
if M
and then Match
(Configuration_Lists.Element (Config).Targets_Filters,
Configuration_Lists.Element (Config).Negate_Targets,
Compilers)
then
if not Configuration_Lists.Element (Config).Supported then
Put_Line
(Standard_Error,
"Code generated by these compilers cannot be linked"
& " as far as we know.");
return;
end if;
Merge_Config
(Base,
Packages,
Compilers,
Get_Name_String (Configuration_Lists.Element (Config).Config));
end if;
Next (Config);
end loop;
if Is_Empty (Packages) then
Put_Line (Standard_Error, "No valid configuration found");
raise Generate_Error;
end if;
Put_Verbose ("Creating configuration file: " & Output_File);
Create (Output, Out_File, Output_File);
Put_Line (Output,
"-- This gpr configuration file was generated by gprconfig");
Put_Line (Output, "-- using this command line:");
Put (Output, "-- " & Command_Name);
for I in 1 .. Argument_Count loop
Put (Output, ' ');
Put (Output, Argument (I));
end loop;
New_Line (Output);
Put (Output, "-- from ");
Put (Output, Current_Directory);
New_Line (Output);
Put_Line (Output, "configuration project " & Project_Name & " is");
if Target'Length > 0 and then Target /= "all" then
Put_Line (Output, " for Target use """ & Target & """;");
end if;
-- Generate known packages in order. This takes care of possible
-- dependencies.
Gen_And_Remove ("");
Gen_And_Remove ("Builder");
Gen_And_Remove ("Compiler");
Gen_And_Remove ("Naming");
Gen_And_Remove ("Binder");
Gen_And_Remove ("Linker");
-- Generate remaining packages
Iterate (Packages, Gen'Access);
Put_Line (Output, "end " & Project_Name & ";");
Close (Output);
exception
when Ada.Directories.Name_Error | Ada.IO_Exceptions.Use_Error =>
Put_Line (Standard_Error, "Could not create the file " & Output_File);
raise Generate_Error;
end Generate_Configuration;
-----------------------
-- Query_Targets_Set --
-----------------------
function Query_Targets_Set
(Base : Knowledge_Base;
Target : String) return Targets_Set_Id
is
use Targets_Set_Vectors;
use Target_Lists;
begin
if Target = "" then
return All_Target_Sets;
end if;
for I in First_Index (Base.Targets_Sets)
.. Last_Index (Base.Targets_Sets)
loop
declare
Set : constant Target_Lists.List :=
Targets_Set_Vectors.Element
(Base.Targets_Sets, I).Patterns;
C : Target_Lists.Cursor := First (Set);
begin
while Has_Element (C) loop
if GNAT.Regpat.Match
(Target_Lists.Element (C).all, Target) > 0
then
return I;
end if;
Next (C);
end loop;
end;
end loop;
return Unknown_Targets_Set;
end Query_Targets_Set;
----------------------
-- Get_Targets_Set --
----------------------
procedure Get_Targets_Set
(Base : in out Knowledge_Base;
Target : String;
Id : out Targets_Set_Id)
is
begin
Id := Query_Targets_Set (Base, Target);
if Id /= Unknown_Targets_Set then
return;
end if;
-- Create a new set
declare
Set : Target_Lists.List;
begin
Put_Verbose ("create a new target set for " & Target);
Set.Append
(new Pattern_Matcher'(Compile ("^" & Quote (Target) & "$")));
Base.Targets_Sets.Append ((Get_String (Target), Set));
Id := Base.Targets_Sets.Last_Index;
end;
end Get_Targets_Set;
-----------------------
-- Normalized_Target --
-----------------------
function Normalized_Target
(Base : Knowledge_Base;
Set : Targets_Set_Id) return String
is
Result : Target_Set_Description;
begin
Result := Targets_Set_Vectors.Element (Base.Targets_Sets, Set);
return Get_Name_String (Result.Name);
exception
when others =>
return "unknown";
end Normalized_Target;
----------------
-- Get_String --
----------------
function Get_String (Str : String) return Name_Id is
begin
Name_Len := Str'Length;
Name_Buffer (1 .. Name_Len) := Str;
return Name_Find;
end Get_String;
--------------------------
-- Get_String_No_Adalib --
--------------------------
function Get_String_No_Adalib (Str : String) return Name_Id is
Name : constant String (1 .. Str'Length) := Str;
Last : Natural := Name'Last;
begin
if Last > 7 and then
(Name (Last) = Directory_Separator or else
Name (Last) = '/')
then
Last := Last - 1;
end if;
if Last > 6 and then
Name (Last - 5 .. Last) = "adalib" and then
(Name (Last - 6) = Directory_Separator or else
Name (Last - 6) = '/')
then
Last := Last - 6;
else
Last := Name'Last;
end if;
Name_Len := Last;
Name_Buffer (1 .. Last) := Name (1 .. Last);
return Name_Find;
end Get_String_No_Adalib;
---------------------------
-- Get_String_Or_No_Name --
---------------------------
function Get_String_Or_No_Name (Str : String) return Name_Id is
begin
if Str = "" then
return No_Name;
else
Name_Len := Str'Length;
Name_Buffer (1 .. Name_Len) := Str;
return Name_Find;
end if;
end Get_String_Or_No_Name;
---------------------------
-- Hash_Case_Insensitive --
---------------------------
function Hash_Case_Insensitive
(Name : Name_Id) return Ada.Containers.Hash_Type is
begin
return Hash_Type (Name);
end Hash_Case_Insensitive;
-----------------------------
-- Get_Name_String_Or_Null --
-----------------------------
function Get_Name_String_Or_Null (Name : Name_Id) return String is
begin
if Name = No_Name then
return "";
else
Get_Name_String (Name);
return Name_Buffer (1 .. Name_Len);
end if;
end Get_Name_String_Or_Null;
-------------------
-- Set_Selection --
-------------------
procedure Set_Selection
(Compilers : in out Compiler_Lists.List;
Cursor : Compiler_Lists.Cursor;
Selected : Boolean)
is
procedure Internal (Comp : in out Compiler_Access);
--------------
-- Internal --
--------------
procedure Internal (Comp : in out Compiler_Access) is
begin
Set_Selection (Comp.all, Selected);
end Internal;
begin
Update_Element (Compilers, Cursor, Internal'Access);
end Set_Selection;
-------------------
-- Set_Selection --
-------------------
procedure Set_Selection
(Comp : in out Compiler;
Selected : Boolean) is
begin
Comp.Selected := Selected;
end Set_Selection;
-----------------------------
-- Extra_Dirs_From_Filters --
-----------------------------
function Extra_Dirs_From_Filters
(Filters : Compiler_Lists.List) return String
is
C : Compiler_Lists.Cursor := First (Filters);
Extra_Dirs : Unbounded_String;
Elem : Compiler_Access;
begin
while Has_Element (C) loop
Elem := Compiler_Lists.Element (C);
if Elem.Path /= No_Name then
Append (Extra_Dirs, Get_Name_String (Elem.Path) & Path_Separator);
end if;
Next (C);
end loop;
return To_String (Extra_Dirs);
end Extra_Dirs_From_Filters;
-------------------------------------
-- Complete_Command_Line_Compilers --
-------------------------------------
procedure Complete_Command_Line_Compilers
(Base : in out Knowledge_Base;
On_Target : Targets_Set_Id;
Filters : Compiler_Lists.List;
Compilers : in out Compiler_Lists.List;
Target_Specified : Boolean;
Selected_Target : in out Unbounded_String)
is
type Cursor_Array
is array (Count_Type range <>) of Compiler_Lists.Cursor;
type Boolean_Array is array (Count_Type range <>) of Boolean;
type Batch_Iterator (Count : Count_Type) is new Compiler_Iterator with
record
Found : Count_Type := 0;
Compilers : Compiler_Lists.List;
Matched : Cursor_Array (1 .. Count) :=
(others => Compiler_Lists.No_Element);
Filters : Compiler_Lists.List;
Found_One : Boolean_Array (1 .. Count) := (others => False);
-- Whether we found at least one matching compiler for each filter
end record;
procedure Callback
(Iterator : in out Batch_Iterator;
Base : in out Knowledge_Base;
Comp : Compiler;
Runtime_Specified : Boolean;
From_Extra_Dir : Boolean;
Continue : out Boolean);
-- Search the first compiler matching each --config command line
-- argument.
--------------
-- Callback --
--------------
procedure Callback
(Iterator : in out Batch_Iterator;
Base : in out Knowledge_Base;
Comp : Compiler;
Runtime_Specified : Boolean;
From_Extra_Dir : Boolean;
Continue : out Boolean)
is
C : Compiler_Lists.Cursor := First (Iterator.Filters);
Index : Count_Type := 1;
Ncomp : Compiler_Access;
El : Compiler_Access;
begin
while Has_Element (C) loop
Ncomp := null;
El := Compiler_Lists.Element (C);
-- A compiler in an "extra_dir" (ie specified on the command line)
-- can only match if that directory was explicitly specified in
-- --config. We do not want to find all compilers in /dir if that
-- directory is not in $PATH
if (not From_Extra_Dir or else El.Path = Comp.Path)
and then Filter_Match (Base, Comp => Comp, Filter => El.all)
and then (not Runtime_Specified or El.Runtime_Dir /= No_Name)
then
Ncomp := new Compiler'(Comp);
if El.Runtime_Dir /= No_Name then
Ncomp.Runtime_Dir := El.Runtime_Dir;
Ncomp.Runtime := El.Runtime;
end if;
if not Ncomp.Any_Runtime
and then Ncomp.Runtime = No_Name
and then El.Runtime /= No_Name
then
Ncomp.Runtime := El.Runtime;
end if;
Append (Iterator.Compilers, Ncomp);
if Current_Verbosity /= Default then
Put_Verbose
("Saving compiler for possible backtracking: "
& To_String (Base, Ncomp.all, As_Config_Arg => True)
& " (matches --config "
& To_String (Base, El.all, As_Config_Arg => True)
& ")");
end if;
if Iterator.Matched (Index) = Compiler_Lists.No_Element then
Iterator.Found := Iterator.Found + 1;
Put_Verbose
("Selecting it since this filter was not matched yet "
& Iterator.Found'Img & "/" & Iterator.Count'Img);
Iterator.Matched (Index) := Last (Iterator.Compilers);
Iterator.Found_One (Index) := True;
Set_Selection
(Iterator.Compilers, Iterator.Matched (Index),
True);
-- Only keep those compilers that are not incompatible
-- (according to the knowledge base). It might happen that
-- none is selected as a result, but appropriate action is
-- taken in Complete_Command_Line_Compilers. We ignore
-- incompatible sets as early as possible, in the hope to
-- limit the number of system calls if another set is found
-- before all directories are traversed.
if not Is_Supported_Config (Base, Iterator.Compilers) then
Set_Selection
(Iterator.Compilers, Iterator.Matched (Index), False);
Put_Verbose
("Compilers are not compatible, cancelling last"
& " compiler found");
Iterator.Matched (Index) := Compiler_Lists.No_Element;
Iterator.Found := Iterator.Found - 1;
end if;
end if;
end if;
Index := Index + 1;
Next (C);
end loop;
-- Stop at first compiler
Continue := Iterator.Found /= Iterator.Count;
end Callback;
Iter : Batch_Iterator (Length (Filters));
function Foreach_Nth_Compiler
(Filter : Compiler_Lists.Cursor) return Boolean;
-- For all possible compiler matching the filter, check whether we
-- find a compatible set of compilers matching the next filters.
-- Return True if one was found (in which case it is the current
-- selection on exit).
--------------------------
-- Foreach_Nth_Compiler --
--------------------------
function Foreach_Nth_Compiler
(Filter : Compiler_Lists.Cursor) return Boolean
is
C : Compiler_Lists.Cursor := First (Iter.Compilers);
Comp_Filter : constant Compiler_Access :=
Compiler_Lists.Element (Filter);
begin
while Has_Element (C) loop
if Filter_Match
(Base, Compiler_Lists.Element (C).all, Filter => Comp_Filter.all)
then
Set_Selection (Iter.Compilers, C, True);
if Next (Filter) = Compiler_Lists.No_Element then
if Current_Verbosity /= Default then
Put_Verbose ("Testing the following compiler set:", 1);
Put_Verbose
(To_String
(Base, Iter.Compilers, Selected_Only => True));
end if;
if Is_Supported_Config (Base, Iter.Compilers) then
Put_Verbose ("They are compatible", -1);
return True;
else
Put_Verbose ("", -1);
end if;
else
if Foreach_Nth_Compiler (Next (Filter)) then
return True;
end if;
end if;
Set_Selection (Iter.Compilers, C, False);
end if;
Next (C);
end loop;
return False;
end Foreach_Nth_Compiler;
C : Compiler_Lists.Cursor;
Extra_Dirs : constant String := Extra_Dirs_From_Filters (Filters);
Found_All : Boolean := True;
function Get_Fallback_List (On_Target : Targets_Set_Id)
return String_Lists.List;
-----------------------
-- Get_Fallback_List --
-----------------------
function Get_Fallback_List (On_Target : Targets_Set_Id)
return String_Lists.List
is
Target : constant String :=
Get_Name_String_Or_Null
(Base.Targets_Sets.Element (On_Target).Name);
Fallback_List : String_Lists.List;
Cur : String_Lists.Cursor;
begin
for I in Base.Fallback_Targets_Sets.First_Index ..
Base.Fallback_Targets_Sets.Last_Index loop
Fallback_List := Base.Fallback_Targets_Sets.Element (I);
Cur := Fallback_List.First;
while Cur /= String_Lists.No_Element loop
if String_Lists.Element (Cur) = Target then
-- No point to store original target, it has already been
-- processed.
Fallback_List.Delete (Cur);
return Fallback_List;
end if;
Next (Cur);
end loop;
end loop;
return String_Lists.Empty_List;
end Get_Fallback_List;
begin
Iter.Filters := Filters;
Put_Verbose ("Completing info for --config parameters, extra_dirs="
& Extra_Dirs, 1);
-- Find all the compilers in PATH and Extra_Dirs
Foreach_Compiler_In_Path
(Iterator => Iter,
Base => Base,
On_Target => On_Target,
Extra_Dirs => Extra_Dirs);
Put_Verbose ("", -1);
-- Check that we could find at least one of each compiler
if Native_Target then
-- Check to see if fallback targets are of interest
C := First (Filters);
for F in Iter.Found_One'Range loop
if not Iter.Found_One (F) then
Found_All := False;
end if;
Next (C);
end loop;
if not Found_All then
-- Looking for corresponding fallback set
declare
Fallback_List : constant String_Lists.List :=
Get_Fallback_List (On_Target);
Cur : String_Lists.Cursor := Fallback_List.First;
begin
while Cur /= String_Lists.No_Element loop
Put_Verbose
("Attempting to fall back to target "
& String_Lists.Element (Cur));
declare
Local_Iter : Batch_Iterator (Length (Filters));
begin
Local_Iter := Iter;
Foreach_Compiler_In_Path
(Iterator => Local_Iter,
Base => Base,
On_Target => Query_Targets_Set
(Base, String_Lists.Element (Cur)),
Extra_Dirs => Extra_Dirs);
Found_All := True;
C := First (Filters);
for F in Local_Iter.Found_One'Range loop
if not Local_Iter.Found_One (F) then
Found_All := False;
end if;
Next (C);
end loop;
if Found_All then
Iter := Local_Iter;
Selected_Target :=
To_Unbounded_String (String_Lists.Element (Cur));
Put_Verbose
(String_Lists.Element (Cur)
& " fallback target selected");
exit;
end if;
end;
Next (Cur);
end loop;
end;
end if;
end if;
C := First (Filters);
for F in Iter.Found_One'Range loop
if not Iter.Found_One (F) then
declare
Comp : constant Compiler := Compiler_Lists.Element (C).all;
Specified_Target : Boolean := Target_Specified;
Language_Known : constant Boolean :=
Known_Languages.Contains
(Container => Languages_Known,
Key => Comp.Language_Case);
begin
-- Display an error when not in quiet mode or when the language
-- is described in the database.
if not Language_Known then
if not Opt.Quiet_Output then
Put (Standard_Error, "Error: unknown language '");
Put
(Standard_Error,
Get_Name_String_Or_Null (Comp.Language_Case));
Put (Standard_Error, "'");
New_Line (Standard_Error);
end if;
else
if Specified_Target then
declare
Selected_Targets_Set : Targets_Set_Id;
begin
Get_Targets_Set
(Base,
Sdefault.Hostname,
Selected_Targets_Set);
declare
Default_Target : constant String :=
Normalized_Target (Base, Selected_Targets_Set);
begin
Get_Targets_Set
(Base,
To_String (Selected_Target),
Selected_Targets_Set);
Specified_Target :=
Selected_Targets_Set = All_Target_Sets
or else
Normalized_Target
(Base, Selected_Targets_Set) /=
Default_Target;
end;
end;
end if;
Put (Standard_Error, "Error: no ");
if not Specified_Target then
Put (Standard_Error, "native ");
end if;
Put (Standard_Error, "compiler found for language '");
Put
(Standard_Error,
Get_Name_String_Or_Null (Comp.Language_Case));
Put (Standard_Error, "'");
if Specified_Target then
Put (Standard_Error, ", target = ");
declare
Tgt : constant String := To_String (Selected_Target);
begin
if Tgt = "" then
Put (Standard_Error, "all");
else
Put (Standard_Error, Tgt);
end if;
end;
end if;
if Comp.Runtime = No_Name then
Put (Standard_Error, ", default runtime");
else
Put
(Standard_Error,
", runtime = " & Get_Name_String (Comp.Runtime));
end if;
Ada.Command_Line.Set_Exit_Status (1);
New_Line (Standard_Error);
end if;
end;
Found_All := False;
end if;
Next (C);
end loop;
-- If we could find at least one of each compiler, but that our initial
-- attempt returned incompatible sets of compiler, we do a more thorough
-- attempt now
if Found_All
and then Iter.Found /= Iter.Count
then
-- If no compatible set was found, try all possible combinations, in
-- the hope that we can finally find one. In the following algorithm,
-- we end up checking again some set that were checked in Callback,
-- but that would be hard to avoid since the compilers can be found
-- in any order.
Put_Verbose ("Attempting to find a supported compiler set", 1);
-- Unselect all compilers
C := First (Iter.Compilers);
while Has_Element (C) loop
Set_Selection (Iter.Compilers, C, False);
Next (C);
end loop;
if not Foreach_Nth_Compiler (First (Iter.Filters)) then
Put_Line
(Standard_Error,
"Error: no set of compatible compilers was found");
raise Invalid_Config;
end if;
Put_Verbose ("", -1);
end if;
Splice (Target => Compilers,
Before => Compiler_Lists.No_Element,
Source => Iter.Compilers);
end Complete_Command_Line_Compilers;
--------------------------------------
-- Default_Knowledge_Base_Directory --
--------------------------------------
function Default_Knowledge_Base_Directory return String is
Prog_Dir : constant String := Executable_Prefix_Path;
Suffix : constant String :=
"share" & Directory_Separator & "gprconfig";
begin
return Prog_Dir & Suffix;
end Default_Knowledge_Base_Directory;
--------------------
-- Display_Before --
--------------------
function Display_Before (Comp1, Comp2 : Compiler_Access) return Boolean is
type Compare_Type is (Before, Equal, After);
function Compare (Name1, Name2 : Name_Id) return Compare_Type;
-- Compare alphabetically two strings
-------------
-- Compare --
-------------
function Compare (Name1, Name2 : Name_Id) return Compare_Type is
begin
if Name1 = No_Name then
if Name2 = No_Name then
return Equal;
else
return Before;
end if;
elsif Name2 = No_Name then
return After;
end if;
Get_Name_String (Name1);
declare
Str1 : constant String (1 .. Name_Len) :=
Name_Buffer (1 .. Name_Len);
begin
Get_Name_String (Name2);
if Str1 < Name_Buffer (1 .. Name_Len) then
return Before;
elsif Str1 > Name_Buffer (1 .. Name_Len) then
return After;
else
return Equal;
end if;
end;
end Compare;
begin
case Compare (Comp1.Language_LC, Comp2.Language_LC) is
when Before =>
return True;
when After =>
return False;
when Equal =>
if Comp1.Path_Order < Comp2.Path_Order then
return True;
elsif Comp2.Path_Order < Comp1.Path_Order then
return False;
else
-- If the "default" attribute was specified for <runtime>,
-- this only impacts the batch mode. We still want to sort
-- the runtimes alphabetically in the interactive display.
case Compare (Comp1.Runtime, Comp2.Runtime) is
when Before =>
return True;
when After =>
return False;
when Equal =>
return Compare (Comp1.Version, Comp2.Version) = Before;
end case;
end if;
end case;
end Display_Before;
----------------------------
-- Parse_Config_Parameter --
----------------------------
procedure Parse_Config_Parameter
(Base : Knowledge_Base;
Config : String;
Compiler : out Compiler_Access;
Requires_Compiler : out Boolean)
is
Map : String_Lists.List;
C : String_Lists.Cursor;
begin
-- Only valid separator is ',', not spaces
Get_Words
(Config, Filter => No_Name,
Map => Map,
Separator1 => ',',
Separator2 => ',',
Allow_Empty_Elements => True);
Compiler := new Knowledge.Compiler;
C := First (Map);
declare
LC : constant String := To_Lower (String_Lists.Element (C));
begin
Compiler.Language_Case :=
Get_String_Or_No_Name (String_Lists.Element (C));
Compiler.Language_LC := Get_String_Or_No_Name (LC);
if Is_Language_With_No_Compiler (Base, LC) then
Put_Verbose ("Language " & LC & " requires no compiler");
Compiler.Complete := True;
Compiler.Selected := True;
Compiler.Targets_Set := All_Target_Sets;
Requires_Compiler := False;
else
Requires_Compiler := True;
Next (C);
if Has_Element (C) then
Compiler.Version :=
Get_String_Or_No_Name (String_Lists.Element (C));
Next (C);
if Has_Element (C) then
declare
Rts : constant String := String_Lists.Element (C);
begin
-- If the runtime is a full path, set Runtime and
-- Runtime_Dir to the same value.
if Rts'Length > 0 and then Is_Absolute_Path (Rts) then
Compiler.Runtime := Get_String_No_Adalib (Rts);
Compiler.Runtime_Dir := Compiler.Runtime;
else
Compiler.Runtime := Get_String_Or_No_Name (Rts);
end if;
end;
Next (C);
if Has_Element (C) then
Compiler.Path := Get_String_Or_No_Name
(Name_As_Directory
(Normalize_Pathname (String_Lists.Element (C),
Case_Sensitive => False)));
Next (C);
if Has_Element (C) then
-- the name could be either a name as defined in the
-- knowledge base, or the base name of the executable
-- we are looking for. It must not include the exec
-- suffix.
declare
function Name return String;
-- Return the name to be used
function Name return String is
N1 : constant String :=
String_Lists.Element (C);
Idx : constant Natural := Index (N1, "gnatmake");
begin
if LC = "ada" and then Idx /= 0 then
-- For Ada, gnatmake was previously used
-- to detect a GNAT compiler. However, as
-- gnatmake may not be present in all the
-- GNAT distributions, gnatls is now used.
-- For upward compatibility, replace gnatmake
-- with gnatls, so that a GNAT compiler may
-- be decteted.
return
Replace_Slice (N1, Idx, Idx + 7, "gnatls");
else
return N1;
end if;
end Name;
begin
Compiler.Name := Get_String_Or_No_Name
(GNAT.Directory_Operations.Base_Name
(Name, Suffix => Exec_Suffix.all));
end;
end if;
end if;
end if;
end if;
Compiler.Complete := False;
-- Complete_Command_Line_Compilers will check that this is a valid
-- config
Put_Verbose ("Language " & LC & " requires a compiler");
end if;
end;
exception
when E : others =>
Put_Verbose ("Exception raised: " & Exception_Information (E));
raise Invalid_Config;
end Parse_Config_Parameter;
---------------------------
-- Filter_Compilers_List --
---------------------------
procedure Filter_Compilers_List
(Base : Knowledge_Base;
Compilers : in out Compiler_Lists.List;
For_Target_Set : Targets_Set_Id)
is
procedure Mark_As_Selectable (Comp : in out Compiler_Access);
procedure Mark_As_Unselectable (Comp : in out Compiler_Access);
------------------------
-- Mark_As_Selectable --
------------------------
procedure Mark_As_Selectable (Comp : in out Compiler_Access) is
begin
Comp.Selectable := True;
end Mark_As_Selectable;
--------------------------
-- Mark_As_Unselectable --
--------------------------
procedure Mark_As_Unselectable (Comp : in out Compiler_Access) is
begin
Comp.Selectable := False;
end Mark_As_Unselectable;
Comp, Comp2 : Compiler_Lists.Cursor;
Selectable : Boolean;
begin
Put_Verbose ("Filtering the list of compilers", 1);
Comp := First (Compilers);
while Has_Element (Comp) loop
if not Compiler_Lists.Element (Comp).Selected then
Selectable := True;
if For_Target_Set /= All_Target_Sets
and then Compiler_Lists.Element (Comp).Targets_Set /=
All_Target_Sets
and then Compiler_Lists.Element (Comp).Targets_Set /=
For_Target_Set
then
Selectable := False;
if Current_Verbosity /= Default then
Put_Verbose
("Incompatible target for: "
& To_String
(Base, Compiler_Lists.Element (Comp).all, False));
end if;
end if;
if Selectable then
Comp2 := First (Compilers);
while Has_Element (Comp2) loop
if Compiler_Lists.Element (Comp2).Selected
and then Compiler_Lists.Element (Comp2).Language_LC =
Compiler_Lists.Element (Comp).Language_LC
then
Selectable := False;
if Current_Verbosity /= Default then
Put_Verbose
("Already selected language for "
& To_String
(Base, Compiler_Lists.Element (Comp).all, False));
end if;
exit;
end if;
Next (Comp2);
end loop;
end if;
if Selectable then
-- Would adding this compiler to the current selection end
-- up with an unsupported config ?
Set_Selection (Compilers, Comp, True);
if not Is_Supported_Config (Base, Compilers) then
Selectable := False;
if Current_Verbosity /= Default then
Put_Verbose
("Unsupported config for: "
& To_String
(Base, Compiler_Lists.Element (Comp).all, False));
end if;
end if;
Set_Selection (Compilers, Comp, False);
end if;
if Selectable then
Update_Element (Compilers, Comp, Mark_As_Selectable'Access);
else
Update_Element (Compilers, Comp, Mark_As_Unselectable'Access);
end if;
end if;
Next (Comp);
end loop;
Put_Verbose ("", -1);
end Filter_Compilers_List;
-----------------
-- Is_Selected --
-----------------
function Is_Selected (Comp : Compiler) return Boolean is
begin
return Comp.Selected;
end Is_Selected;
------------
-- Target --
------------
function Target (Comp : Compiler) return Name_Id is
begin
return Comp.Target;
end Target;
--------------------
-- Runtime_Dir_Of --
--------------------
function Runtime_Dir_Of (Comp : Compiler_Access) return Name_Id is
begin
if Comp = null then
return No_Name;
else
return Comp.Runtime_Dir;
end if;
end Runtime_Dir_Of;
end GPR.Knowledge;
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