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|
------------------------------------------------------------------------------
-- --
-- GNAT COMPILER COMPONENTS --
-- --
-- O S I N T - C --
-- --
-- B o d y --
-- --
-- Copyright (C) 2001-2024, Free Software Foundation, Inc. --
-- --
-- GNAT is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
-- ware Foundation; either version 3, or (at your option) any later ver- --
-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
-- for more details. You should have received a copy of the GNU General --
-- Public License distributed with GNAT; see file COPYING3. If not, go to --
-- http://www.gnu.org/licenses for a complete copy of the license. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
with Opt; use Opt;
package body Osint.C is
Output_Object_File_Name : String_Ptr;
-- Argument of -o compiler option, if given. This is needed to verify
-- consistency with the ALI file name.
procedure Adjust_OS_Resource_Limits;
pragma Import (C, Adjust_OS_Resource_Limits,
"__gnat_adjust_os_resource_limits");
-- Procedure to make system specific adjustments to make GNAT run better
function Create_Auxiliary_File
(Src : File_Name_Type;
Suffix : String) return File_Name_Type;
-- Common processing for Create_List_File, Create_Repinfo_File and
-- Create_Debug_File. Src is the file name used to create the required
-- output file and Suffix is the desired suffix (dg/rep/xxx for debug/
-- repinfo/list file where xxx is specified extension.
------------------
-- Close_C_File --
------------------
procedure Close_C_File is
Status : Boolean;
begin
Close (Output_FD, Status);
if not Status then
Fail
("error while closing file "
& Get_Name_String (Output_File_Name));
end if;
end Close_C_File;
----------------------
-- Close_Debug_File --
----------------------
procedure Close_Debug_File is
Status : Boolean;
begin
Close (Output_FD, Status);
if not Status then
Fail
("error while closing expanded source file "
& Get_Name_String (Output_File_Name));
end if;
end Close_Debug_File;
------------------
-- Close_H_File --
------------------
procedure Close_H_File is
Status : Boolean;
begin
Close (Output_FD, Status);
if not Status then
Fail
("error while closing file "
& Get_Name_String (Output_File_Name));
end if;
end Close_H_File;
---------------------
-- Close_List_File --
---------------------
procedure Close_List_File is
Status : Boolean;
begin
Close (Output_FD, Status);
if not Status then
Fail
("error while closing list file "
& Get_Name_String (Output_File_Name));
end if;
end Close_List_File;
-------------------------------
-- Close_Output_Library_Info --
-------------------------------
procedure Close_Output_Library_Info is
Status : Boolean;
begin
Close (Output_FD, Status);
if not Status then
Fail
("error while closing ALI file "
& Get_Name_String (Output_File_Name));
end if;
end Close_Output_Library_Info;
------------------------
-- Close_Repinfo_File --
------------------------
procedure Close_Repinfo_File is
Status : Boolean;
begin
Close (Output_FD, Status);
if not Status then
Fail
("error while closing representation info file "
& Get_Name_String (Output_File_Name));
end if;
end Close_Repinfo_File;
---------------------------
-- Create_Auxiliary_File --
---------------------------
function Create_Auxiliary_File
(Src : File_Name_Type;
Suffix : String) return File_Name_Type
is
Result : File_Name_Type;
begin
Get_Name_String (Src);
Name_Buffer (Name_Len + 1) := '.';
Name_Len := Name_Len + 1;
Name_Buffer (Name_Len + 1 .. Name_Len + Suffix'Length) := Suffix;
Name_Len := Name_Len + Suffix'Length;
if Output_Object_File_Name /= null then
for Index in reverse Output_Object_File_Name'Range loop
if Output_Object_File_Name (Index) = Directory_Separator then
declare
File_Name : constant String := Name_Buffer (1 .. Name_Len);
begin
Name_Len := Index - Output_Object_File_Name'First + 1;
Name_Buffer (1 .. Name_Len) :=
Output_Object_File_Name
(Output_Object_File_Name'First .. Index);
Name_Buffer (Name_Len + 1 .. Name_Len + File_Name'Length) :=
File_Name;
Name_Len := Name_Len + File_Name'Length;
end;
exit;
end if;
end loop;
end if;
Result := Name_Find;
Name_Buffer (Name_Len + 1) := ASCII.NUL;
Create_File_And_Check (Output_FD, Text);
return Result;
end Create_Auxiliary_File;
-------------------
-- Create_C_File --
-------------------
procedure Create_C_File is
Dummy : Boolean;
begin
Set_File_Name ("c");
Delete_File (Name_Buffer (1 .. Name_Len), Dummy);
Create_File_And_Check (Output_FD, Text);
end Create_C_File;
-----------------------
-- Create_Debug_File --
-----------------------
function Create_Debug_File (Src : File_Name_Type) return File_Name_Type is
begin
return Create_Auxiliary_File (Src, "dg");
end Create_Debug_File;
-------------------
-- Create_H_File --
-------------------
procedure Create_H_File is
Dummy : Boolean;
begin
Set_File_Name ("h");
Delete_File (Name_Buffer (1 .. Name_Len), Dummy);
Create_File_And_Check (Output_FD, Text);
end Create_H_File;
----------------------
-- Create_List_File --
----------------------
procedure Create_List_File (S : String) is
Dummy : File_Name_Type;
begin
if S (S'First) = '.' then
Dummy :=
Create_Auxiliary_File (Current_Main, S (S'First + 1 .. S'Last));
else
Name_Buffer (1 .. S'Length) := S;
Name_Len := S'Length + 1;
Name_Buffer (Name_Len) := ASCII.NUL;
Create_File_And_Check (Output_FD, Text);
end if;
end Create_List_File;
--------------------------------
-- Create_Output_Library_Info --
--------------------------------
procedure Create_Output_Library_Info is
Dummy : Boolean;
begin
Set_File_Name (ALI_Suffix.all);
Delete_File (Name_Buffer (1 .. Name_Len), Dummy);
Create_File_And_Check (Output_FD, Text);
end Create_Output_Library_Info;
------------------------------
-- Open_Output_Library_Info --
------------------------------
procedure Open_Output_Library_Info is
begin
Set_File_Name (ALI_Suffix.all);
Open_File_To_Append_And_Check (Output_FD, Text);
end Open_Output_Library_Info;
-------------------------
-- Create_Repinfo_File --
-------------------------
procedure Create_Repinfo_File (Src : String) is
Discard : File_Name_Type;
begin
Name_Buffer (1 .. Src'Length) := Src;
Name_Len := Src'Length;
if List_Representation_Info_To_JSON then
Discard := Create_Auxiliary_File (Name_Find, "json");
else
Discard := Create_Auxiliary_File (Name_Find, "rep");
end if;
end Create_Repinfo_File;
---------------------------
-- Debug_File_Eol_Length --
---------------------------
function Debug_File_Eol_Length return Nat is
begin
-- There has to be a cleaner way to do this ???
if Directory_Separator = '/' then
return 1;
else
return 2;
end if;
end Debug_File_Eol_Length;
-------------------
-- Delete_C_File --
-------------------
procedure Delete_C_File is
Dummy : Boolean;
begin
Set_File_Name ("c");
Delete_File (Name_Buffer (1 .. Name_Len), Dummy);
end Delete_C_File;
-------------------
-- Delete_H_File --
-------------------
procedure Delete_H_File is
Dummy : Boolean;
begin
Set_File_Name ("h");
Delete_File (Name_Buffer (1 .. Name_Len), Dummy);
end Delete_H_File;
---------------------------------
-- Get_Output_Object_File_Name --
---------------------------------
function Get_Output_Object_File_Name return String is
begin
pragma Assert (Output_Object_File_Name /= null);
return Output_Object_File_Name.all;
end Get_Output_Object_File_Name;
-----------------------
-- More_Source_Files --
-----------------------
function More_Source_Files return Boolean renames More_Files;
----------------------
-- Next_Main_Source --
----------------------
function Next_Main_Source return File_Name_Type renames Next_Main_File;
-----------------------
-- Read_Library_Info --
-----------------------
procedure Read_Library_Info
(Name : out File_Name_Type;
Text : out Text_Buffer_Ptr)
is
begin
Set_File_Name (ALI_Suffix.all);
-- Remove trailing NUL that comes from Set_File_Name above. This is
-- needed for consistency with names that come from Scan_ALI and thus
-- preventing repeated scanning of the same file.
pragma Assert (Name_Len > 1 and then Name_Buffer (Name_Len) = ASCII.NUL);
Name_Len := Name_Len - 1;
Name := Name_Find;
Text := Read_Library_Info (Name, Fatal_Err => False);
end Read_Library_Info;
-------------------
-- Set_File_Name --
-------------------
procedure Set_File_Name (Ext : String) is
Dot_Index : Natural;
begin
Get_Name_String (Current_Main);
-- Find last dot since we replace the existing extension by .ali. The
-- initialization to Name_Len + 1 provides for simply adding the .ali
-- extension if the source file name has no extension.
Dot_Index := Name_Len + 1;
for J in reverse 1 .. Name_Len loop
if Name_Buffer (J) = '.' then
Dot_Index := J;
exit;
end if;
end loop;
-- If we are in multiple-units-per-file mode, then add a ~nnn extension
-- to the name.
if Multiple_Unit_Index /= 0 then
declare
Exten : constant String := Name_Buffer (Dot_Index .. Name_Len);
begin
Name_Len := Dot_Index - 1;
Add_Char_To_Name_Buffer (Multi_Unit_Index_Character);
Add_Nat_To_Name_Buffer (Multiple_Unit_Index);
Dot_Index := Name_Len + 1;
Add_Str_To_Name_Buffer (Exten);
end;
end if;
-- Make sure that the output file name matches the source file name.
-- To compare them, remove file name directories and extensions.
if Output_Object_File_Name /= null then
-- Make sure there is a dot at Dot_Index. This may not be the case
-- if the source file name has no extension.
Name_Buffer (Dot_Index) := '.';
-- Remove extension preparing to replace it
declare
Name : String := Name_Buffer (1 .. Dot_Index);
Output : String := Output_Object_File_Name.all;
First : Positive;
begin
Name_Buffer (1 .. Output_Object_File_Name'Length) := Output;
-- Put two names in canonical case, to allow object file names
-- with upper-case letters on Windows.
-- Do it with a copy (Output) and keep Name_Buffer as is since we
-- want to preserve the original casing.
Canonical_Case_File_Name (Name);
Canonical_Case_File_Name (Output);
Dot_Index := 0;
for J in reverse Output'Range loop
if Name_Buffer (J) = '.' then
Dot_Index := J;
exit;
end if;
end loop;
-- Dot_Index should not be zero now (we check for extension
-- elsewhere).
pragma Assert (Dot_Index /= 0);
-- Look for first character of file name
First := Dot_Index;
while First > 1
and then Name_Buffer (First - 1) /= Directory_Separator
and then Name_Buffer (First - 1) /= '/'
loop
First := First - 1;
end loop;
-- Check name of object file is what we expect
if Name /= Output (First .. Dot_Index) then
Fail ("incorrect object file name");
end if;
end;
end if;
Name_Buffer (Dot_Index) := '.';
Name_Buffer (Dot_Index + 1 .. Dot_Index + Ext'Length) := Ext;
Name_Buffer (Dot_Index + Ext'Length + 1) := ASCII.NUL;
Name_Len := Dot_Index + Ext'Length + 1;
end Set_File_Name;
---------------------------------
-- Set_Output_Object_File_Name --
---------------------------------
procedure Set_Output_Object_File_Name (Name : String) is
Ext : constant String := Target_Object_Suffix;
NL : constant Natural := Name'Length;
EL : constant Natural := Ext'Length;
begin
-- Make sure that the object file has the expected extension
-- Allow for either .o or .c (for C code generation)
if NL <= EL
or else
(not Generate_Asm
and then Name (NL - EL + Name'First .. Name'Last) /= Ext
and then Name (NL - 2 + Name'First .. Name'Last) /= ".o"
and then Name (NL - 2 + Name'First .. Name'Last) /= ".c")
then
Fail ("incorrect object file extension");
end if;
Output_Object_File_Name := new String'(Name);
end Set_Output_Object_File_Name;
-----------------------
-- Write_Debug_Info --
-----------------------
procedure Write_Debug_Info (Info : String) renames Write_Info;
------------------------
-- Write_Library_Info --
------------------------
procedure Write_Library_Info (Info : String) renames Write_Info;
---------------------
-- Write_List_Info --
---------------------
procedure Write_List_Info (S : String) is
begin
Write_With_Check (S'Address, S'Length);
end Write_List_Info;
------------------------
-- Write_Repinfo_Line --
------------------------
procedure Write_Repinfo_Line (Info : String) renames Write_Info;
begin
Adjust_OS_Resource_Limits;
Opt.Create_List_File_Access := Create_List_File'Access;
Opt.Write_List_Info_Access := Write_List_Info'Access;
Opt.Close_List_File_Access := Close_List_File'Access;
Set_Program (Compiler);
end Osint.C;
|
