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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 Printf
open Gdbmi_types
let parse_gdb_response str =
let lexbuf = Lexing.from_string str in
Gdbmi_parser.response_eof Gdbmi_lexer.token lexbuf
type gdb_session = (in_channel * out_channel * in_channel) option
let gdb_command = ref "gdb-multiarch"
let gdb_token_counter = ref 0
let gdb_token () =
incr gdb_token_counter;
!gdb_token_counter
let not_connected = Reporting.err_general Parse_ast.Unknown "Not connected to gdb"
let rec wait_for' regexp stdout =
let line = input_line stdout in
if Str.string_match regexp line 0 then (
line
) else (
print_endline Util.(line |> dim |> clear);
wait_for' regexp stdout
)
let wait_for token stdout =
let regexp = Str.regexp (sprintf "^%i\\^" token) in
wait_for' regexp stdout
let wait_for_gdb stdout =
let regexp = Str.regexp_string "(gdb)" in
wait_for' regexp stdout
let send_sync session cmd =
match session with
| None -> raise not_connected
| Some (stdout, stdin, _) ->
let token = gdb_token () in
let cmd = sprintf "%i-%s\n" token cmd in
print_string Util.(cmd |> yellow |> clear);
flush stdin;
output_string stdin cmd;
flush stdin;
wait_for token stdout
let send_regular session cmd =
match session with
| None -> raise not_connected
| Some (stdout, stdin, _) ->
let token = gdb_token () in
print_endline Util.(cmd |> yellow |> clear);
flush stdin;
output_string stdin (cmd ^ "\n");
flush stdin;
ignore (wait_for_gdb stdout)
let gdb_sync session ast =
let gdb_register_names = parse_gdb_response (send_sync session "data-list-register-names") in
let gdb_register_values = parse_gdb_response (send_sync session "data-list-register-values x") in
print_endline (send_sync session "data-list-register-values x");
()
let () =
let open Interactive in
let session = ref None in
let gdb_start arg =
let stdout, stdin, stderr = Unix.open_process_full (sprintf "%s --interpreter=mi" !gdb_command) [||] in
session := Some (stdout, stdin, stderr);
wait_for_gdb stdout |> ignore;
if arg = "" then () else print_endline (send_sync !session arg)
in
let gdb_send arg =
if arg = "" then () else print_endline (send_sync !session arg)
in
register_command
~name:"gdb_command"
~help:"Use specified gdb. Default is gdb-multiarch. This is the \
correct version on Ubuntu, but other Linux distros and \
operating systems may differ in how they package gdb with \
support for multiple architectures."
(ArgString ("gdb", fun arg -> Action (fun () -> gdb_command := arg)));
register_command
~name:"gdb_start"
~help:"Start a child GDB process sending :0 as the first command, waiting for it to complete"
(ArgString ("command", fun cmd -> Action (fun () -> gdb_start cmd)));
(ArgString ("port", fun port -> Action (fun () ->
if port = "" then
gdb_start "target-select remote localhost:1234"
else
gdb_start ("target-select remote localhost:" ^ port)
))) |> register_command
~name:"gdb_qemu"
~help:"Connect GDB to a remote QEMU target on localhost port :0 (default is 1234, as per -s option for QEMU)";
register_command
~name:"gdb_send"
~help:"Send a GDB/MI command to a child GDB process and wait for it to complete"
(ArgString ("command", fun cmd -> Action (fun () -> gdb_send cmd)));
register_command
~name:"gdb_sync"
~help:"Sync sail registers with GDB"
(Action (fun () -> gdb_sync !session !ast));
(ArgString ("symbol_file", fun file -> Action (fun () ->
send_regular !session ("symbol-file " ^ file)
))) |> register_command
~name:"gdb_symbol_file"
~help:"Load debugging symbols into GDB";
|
