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|
(**************************************************************************)
(* Sail *)
(* *)
(* Copyright (c) 2013-2017 *)
(* Kathyrn Gray *)
(* Shaked Flur *)
(* Stephen Kell *)
(* Gabriel Kerneis *)
(* Robert Norton-Wright *)
(* Christopher Pulte *)
(* Peter Sewell *)
(* Alasdair Armstrong *)
(* Brian Campbell *)
(* Thomas Bauereiss *)
(* Anthony Fox *)
(* Jon French *)
(* Dominic Mulligan *)
(* Stephen Kell *)
(* Mark Wassell *)
(* *)
(* All rights reserved. *)
(* *)
(* This software was developed by the University of Cambridge Computer *)
(* Laboratory as part of the Rigorous Engineering of Mainstream Systems *)
(* (REMS) project, funded by EPSRC grant EP/K008528/1. *)
(* *)
(* Redistribution and use in source and binary forms, with or without *)
(* modification, are permitted provided that the following conditions *)
(* are met: *)
(* 1. Redistributions of source code must retain the above copyright *)
(* notice, this list of conditions and the following disclaimer. *)
(* 2. Redistributions in binary form must reproduce the above copyright *)
(* notice, this list of conditions and the following disclaimer in *)
(* the documentation and/or other materials provided with the *)
(* distribution. *)
(* *)
(* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' *)
(* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED *)
(* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A *)
(* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR *)
(* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, *)
(* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT *)
(* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF *)
(* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND *)
(* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, *)
(* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT *)
(* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF *)
(* SUCH DAMAGE. *)
(**************************************************************************)
open Elf_loader
open Sail_lib
open Riscv
module PI = Platform_impl
module P = Platform
(* OCaml driver for generated RISC-V model. *)
let opt_file_arguments = ref ([] : string list)
let opt_dump_dts = ref false
let opt_dump_dtb = ref false
let options = Arg.align ([("-dump-dts",
Arg.Set opt_dump_dts,
" dump the platform device-tree source to stdout");
("-dump-dtb",
Arg.Set opt_dump_dtb,
" dump the *binary* platform device-tree blob to stdout");
("-enable-dirty-update",
Arg.Set P.config_enable_dirty_update,
" enable dirty-bit update during page-table walks");
("-enable-misaligned-access",
Arg.Set P.config_enable_misaligned_access,
" enable misaligned accesses without M-mode traps");
("-mtval-has-illegal-inst-bits",
Arg.Set P.config_mtval_has_illegal_inst_bits,
" mtval stores instruction bits on an illegal instruction exception");
("-ram-size",
Arg.Int PI.set_dram_size,
" size of physical ram memory to use (in MB)");
("-with-dtc",
Arg.String PI.set_dtc,
" full path to dtc to use")
])
let usage_msg = "RISC-V platform options:"
let elf_arg =
Arg.parse options (fun s -> opt_file_arguments := !opt_file_arguments @ [s])
usage_msg;
if !opt_dump_dts then (PI.dump_dts (); exit 0);
if !opt_dump_dtb then (PI.dump_dtb (); exit 0);
( match !opt_file_arguments with
| f :: _ -> prerr_endline ("Sail/RISC-V: running ELF file " ^ f); f
| _ -> (prerr_endline "Please provide an ELF file."; exit 0)
)
let run pc =
sail_call
(fun r ->
try ( zinit_platform (); (* devices *)
zinit_sys (); (* processor *)
zPC := pc;
zloop ()
)
with
| ZError_not_implemented (zs) ->
print_string ("Error: Not implemented: ", zs)
| ZError_internal_error (_) ->
prerr_endline "Error: internal error"
)
let show_times init_s init_e run_e insts =
let init_time = init_e.Unix.tms_utime -. init_s.Unix.tms_utime in
let exec_time = run_e.Unix.tms_utime -. init_e.Unix.tms_utime in
Printf.eprintf "\nInitialization: %g secs\n" init_time;
Printf.eprintf "Execution: %g secs\n" exec_time;
Printf.eprintf "Instructions retired: %Ld\n" insts;
Printf.eprintf "Perf: %g ips\n" ((Int64.to_float insts) /. exec_time)
let () =
Random.self_init ();
let init_start = Unix.times () in
let pc = Platform.init elf_arg in
let init_end = Unix.times () in
let _ = run pc in
let run_end = Unix.times () in
let insts = Big_int.to_int64 (uint (!Riscv.zminstret)) in
show_times init_start init_end run_end insts
|
