2007-12-06 Emmanuel Briot <briot@adacore.com>

	    Vincent Celier  <celier@adacore.com>

	* prj.ads, prj.adb (Is_A_Language): Now takes a Name_Id instead of a
	string
	(Must_Check_Configuration, Default_Language_Is_Ada): new flags in
	prj.ads
	(Hash): Move instantiation of System.HTable.Hash from spec to body
	(prj-nmsc.adb): Optimize calls to Name_Find when on case sensitive
	systems, since we do not need to recompute the Name_Id for the canonical
	file name.
	(Body_Suffix_Id_Of, Spec_Suffix_Id_Of): new version that takes a name_id
	as a parameter. This parameter is in fact always "ada" in all calls, and
	we were doing 160560 extra calls to Name_Find to convert it to Name_Ada
	while loading a project with 40000 files

	* prj-attr.adb: Fix name of attribute Dependency_Driver
	Change the kind of indexing for attribute Root

	* prj-dect.adb (Parse_Declarative_Items): Allow redeclarations of
	variables already declared, in case constructions.

	* prj-env.adb (Initialize): Reset Current_Source_Path_File and
	Current_Object_Path_File to No_Path.

	* prj-ext.adb (Initialize_Project_Path): In multi language mode, use
	ADA_PROJECT_PATH if value of GPR_PROJECT_PATH is empty.

	* prj-makr.adb: new parameter Current_Dir

	* prj-nmsc.ads, prj-nmsc.adb (Find_Explicit_Sources): Do not look for
	Ada sources when language is not Ada.
	Change Opt.Follow_Links to Opt.Follow_Links_For_Files.
	(Find_Excluded_Sources, Find_Explicit_Sources): new subprograms
	(Must_Check_Configuration, Default_Language_Is_Ada): new flags.
	(Locate_Directory): Always resolve links when computing Canonical_Path
	(Look_For_Sources): Make sure that Name_Buffer contains the file name
	in Source_Files before checking for the presence of a directory
	separator.
	Optimize calls to Name_Find when on case sensitive systems.
	(Body_Suffix_Id_Of, Spec_Suffix_Id_Of): new version that takes a name_id
	as a parameter.
	(Prj.Nmsc.Check): new parameter Current_Dir
	(Check_Ada_Naming_Schemes): Restrictions on suffixes are relaxed. They
	cannot be empty and the spec suffix cannot be the same as the body or
	separate suffix.
	(Get_Unit): When a file name can be of several unit kinds (spec, body or
	subunit), always consider the longest suffix.
	(Check_Configuration): Do not issue an error if there is no compiler
	for a language. Just issue a warning and ignore the sources for the
	language.
	(Check_Library_Attributes): Only check Library_Dir if Library_Name is
	not empty.
	(Check_Naming_Schemes.Maked_Unit): Only output message if high verbosity
	(Unit_Exceptions): New hash table
	(Check_Naming_Schemes): Check if a file that could be a unit because of
	the naming scheme is not in fact a source because there is an exception
	for the unit.
	(Look_For_Sources): Put the unit exceptions in hash table
	Unit_Exceptions
	(Get_Unit_Exceptions): Give initial value No_Source to local variable
	Other_Part to avoid exception when code is compiled with validity
	checking.
	(Get_Sources_From_File): Check that there is no directory information
	in the file names.
	(Look_For_Sources): Check that there is no directory information in the
	list of file names in Source_Files.
	(Look_For_Sources): In multi-language mode, do not allow exception file
	names that are excluded.
	(Excluded_Sources_Htable): New hash table
	(Search_Directories.Check_File): New procedure to simplify
	Search_Directories.
	(Search_Directories): Do not consider excluded sources
	(Look_For_Sources): Populate Excluded_Sources_Htable before calling
	Search_Directories.
	(Get_Exceptions): Set component Lang_Kind of Source_Data
	(Get_Unit_Exceptions): Ditto
	(Search_Directories): Ditto

	* prj-pars.adb: new parameter Current_Dir

	* prj-part.ads, prj-part.adb: 
	Change Opt.Follow_Links to Opt.Follow_Links_For_Files.
	(Opt.Follow_Links_For_Dirs): New flag
	(Project_Path_Name_Of): Cache information returned by this routine as
	Locate_Regular_File is a costly routine. The code to output a log
	information and the effective call to Locate_Regular_File is now
	factorized into a routine (code clean-up).
	(Parse, Parse_Single_Project): new parameter Current_Dir
	When main project file cannot be found, indicate in the error
	message the project path that was used to do the search.

	* prj-proc.ads, prj-proc.adb (Opt.Follow_Links_For_Dirs): New flag
	(Prj.Proc.Process*): new parameter Current_Dir

	* switch-m.adb: Change Opt.Follow_Links to Opt.Follow_Links_For_Files



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@130846 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 7 insertions, 2 deletions

diff --git a/gcc/ada/prj-part.ads b/gcc/ada/prj-part.ads
index 91e57e0af20..8e366bc4fff 100644
--- a/gcc/ada/prj-part.ads
+++ b/gcc/ada/prj-part.ads
@@ -35,7 +35,8 @@ package Prj.Part is
       Project_File_Name      : String;
       Always_Errout_Finalize : Boolean;
       Packages_To_Check      : String_List_Access := All_Packages;
-      Store_Comments         : Boolean := False);
+      Store_Comments         : Boolean := False;
+      Current_Directory      : String := "");
    --  Parse project file and all its imported project files and create a tree.
    --  Return the node for the project (or Empty_Node if parsing failed). If
    --  Always_Errout_Finalize is True, Errout.Finalize is called in all cases,
@@ -44,6 +45,9 @@ package Prj.Part is
    --  where any unknown attribute produces an error. For other packages, an
    --  unknown attribute produces a warning. When Store_Comments is True,
    --  comments are stored in the parse tree.
+   --
+   --  Current_Directory is used for optimization purposes only, avoiding extra
+   --  system calls.
 
    type Extension_Origin is (None, Extending_Simple, Extending_All);
    --  Type of parameter From_Extended for procedures Parse_Single_Project and
@@ -59,7 +63,8 @@ package Prj.Part is
       From_Extended     : Extension_Origin;
       In_Limited        : Boolean;
       Packages_To_Check : String_List_Access;
-      Depth             : Natural);
+      Depth             : Natural;
+      Current_Dir       : String);
    --  Parse a project file.
    --  Recursive procedure: it calls itself for imported and extended
    --  projects. When From_Extended is not None, if the project has already