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|
(* *********************************************************************)
(* *)
(* The Compcert verified compiler *)
(* *)
(* Xavier Leroy, INRIA Paris-Rocquencourt *)
(* *)
(* Copyright Institut National de Recherche en Informatique et en *)
(* Automatique. All rights reserved. This file is distributed *)
(* under the terms of the GNU General Public License as published by *)
(* the Free Software Foundation, either version 2 of the License, or *)
(* (at your option) any later version. This file is also distributed *)
(* under the terms of the INRIA Non-Commercial License Agreement. *)
(* *)
(* *********************************************************************)
(* Machine-dependent aspects *)
type t = {
char_signed: bool;
sizeof_ptr: int;
sizeof_short: int;
sizeof_int: int;
sizeof_long: int;
sizeof_longlong: int;
sizeof_float: int;
sizeof_double: int;
sizeof_longdouble: int;
sizeof_void: int option;
sizeof_fun: int option;
sizeof_wchar: int;
sizeof_size_t: int;
sizeof_ptrdiff_t: int;
alignof_ptr: int;
alignof_short: int;
alignof_int: int;
alignof_long: int;
alignof_longlong: int;
alignof_float: int;
alignof_double: int;
alignof_longdouble: int;
alignof_void: int option;
alignof_fun: int option;
bigendian: bool;
bitfields_msb_first: bool
}
let ilp32ll64 = {
char_signed = false;
sizeof_ptr = 4;
sizeof_short = 2;
sizeof_int = 4;
sizeof_long = 4;
sizeof_longlong = 8;
sizeof_float = 4;
sizeof_double = 8;
sizeof_longdouble = 16;
sizeof_void = None;
sizeof_fun = None;
sizeof_wchar = 4;
sizeof_size_t = 4;
sizeof_ptrdiff_t = 4;
alignof_ptr = 4;
alignof_short = 2;
alignof_int = 4;
alignof_long = 4;
alignof_longlong = 8;
alignof_float = 4;
alignof_double = 8;
alignof_longdouble = 16;
alignof_void = None;
alignof_fun = None;
bigendian = false;
bitfields_msb_first = false
}
let i32lpll64 = {
char_signed = false;
sizeof_ptr = 8;
sizeof_short = 2;
sizeof_int = 4;
sizeof_long = 8;
sizeof_longlong = 8;
sizeof_float = 4;
sizeof_double = 8;
sizeof_longdouble = 16;
sizeof_void = None;
sizeof_fun = None;
sizeof_wchar = 4;
sizeof_size_t = 8;
sizeof_ptrdiff_t = 8;
alignof_ptr = 8;
alignof_short = 2;
alignof_int = 4;
alignof_long = 8;
alignof_longlong = 8;
alignof_float = 4;
alignof_double = 8;
alignof_longdouble = 16;
alignof_void = None;
alignof_fun = None;
bigendian = false;
bitfields_msb_first = false
}
let il32pll64 = {
char_signed = false;
sizeof_ptr = 8;
sizeof_short = 2;
sizeof_int = 4;
sizeof_long = 4;
sizeof_longlong = 8;
sizeof_float = 4;
sizeof_double = 8;
sizeof_longdouble = 16;
sizeof_void = None;
sizeof_fun = None;
sizeof_wchar = 4;
sizeof_size_t = 8;
sizeof_ptrdiff_t = 8;
alignof_ptr = 8;
alignof_short = 2;
alignof_int = 4;
alignof_long = 4;
alignof_longlong = 8;
alignof_float = 4;
alignof_double = 8;
alignof_longdouble = 16;
alignof_void = None;
alignof_fun = None;
bigendian = false;
bitfields_msb_first = false
}
(* Canned configurations for some ABIs *)
let x86_32 = { ilp32ll64 with char_signed = true }
let x86_64 = { i32lpll64 with char_signed = true }
let win64 = { il32pll64 with char_signed = true }
let ppc_32_bigendian = { ilp32ll64 with bigendian = true; bitfields_msb_first = true }
let arm_littleendian = ilp32ll64
(* Add GCC extensions re: sizeof and alignof *)
let gcc_extensions c =
{ c with sizeof_void = Some 1; sizeof_fun = Some 1;
alignof_void = Some 1; alignof_fun = Some 1 }
(* Default configuration *)
let config =
ref (match Sys.word_size with
| 32 -> ilp32ll64
| 64 -> if Sys.os_type = "Win32" then il32pll64 else i32lpll64
| _ -> assert false)
|
