From nobody Tue Feb 10 03:38:17 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1543502149583556.9842394132672; Thu, 29 Nov 2018 06:35:49 -0800 (PST) Received: from localhost ([::1]:54483 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gSNPw-0002af-Eg for importer@patchew.org; Thu, 29 Nov 2018 09:35:48 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:52507) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gSNIZ-0004C5-FO for qemu-devel@nongnu.org; Thu, 29 Nov 2018 09:28:12 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gSNIV-0004sv-D8 for qemu-devel@nongnu.org; Thu, 29 Nov 2018 09:28:11 -0500 Received: from mail.ispras.ru ([83.149.199.45]:39216) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gSNIV-0004rJ-0f for qemu-devel@nongnu.org; Thu, 29 Nov 2018 09:28:07 -0500 Received: from Misha-PC.lan02.inno (unknown [85.142.117.226]) by mail.ispras.ru (Postfix) with ESMTPSA id 3536F5400AD; Thu, 29 Nov 2018 17:28:06 +0300 (MSK) From: Mikhail Abakumov To: qemu-devel@nongnu.org Date: Thu, 29 Nov 2018 17:28:03 +0300 Message-ID: <154350168373.8036.7695646527428454601.stgit@Misha-PC.lan02.inno> In-Reply-To: <154350164526.8036.12623669071583857903.stgit@Misha-PC.lan02.inno> References: <154350164526.8036.12623669071583857903.stgit@Misha-PC.lan02.inno> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [fuzzy] X-Received-From: 83.149.199.45 Subject: [Qemu-devel] [PATCH 06/39] windbg: add chardev X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: sw@weilnetz.de, lprosek@redhat.com, dovgaluk@ispras.ru, rkagan@virtuozzo.com, pbonzini@redhat.com, den@openvz.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Add chardev for listening to windbg client. Target device is a parameter in the '-windbg' option. Signed-off-by: Mikhail Abakumov Signed-off-by: Pavel Dovgalyuk --- windbgstub.c | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/windbgstub.c b/windbgstub.c index b073cc6a3f..85e2215f73 100644 --- a/windbgstub.c +++ b/windbgstub.c @@ -10,6 +10,10 @@ */ =20 #include "qemu/osdep.h" +#include "qapi/error.h" +#include "chardev/char.h" +#include "chardev/char-fe.h" +#include "qemu/cutils.h" #include "exec/windbgstub.h" #include "exec/windbgstub-utils.h" =20 @@ -18,6 +22,8 @@ typedef struct WindbgState { bool catched_breakin_byte; uint32_t wait_packet_type; uint32_t curr_packet_id; + + CharBackend chr; } WindbgState; =20 static WindbgState *windbg_state; @@ -30,6 +36,15 @@ static void windbg_state_clean(WindbgState *state) state->curr_packet_id =3D INITIAL_PACKET_ID | SYNC_PACKET_ID; } =20 +static int windbg_chr_can_receive(void *opaque) +{ + return PACKET_MAX_SIZE; +} + +static void windbg_chr_receive(void *opaque, const uint8_t *buf, int size) +{ +} + static void windbg_exit(void) { g_free(windbg_state); @@ -37,14 +52,30 @@ static void windbg_exit(void) =20 int windbg_server_start(const char *device) { + Chardev *chr =3D NULL; + if (windbg_state) { WINDBG_ERROR("Multiple instances of windbg are not supported."); exit(1); } =20 + if (!strstart(device, "pipe:", NULL)) { + WINDBG_ERROR("Unsupported device. Supported only pipe."); + exit(1); + } + windbg_state =3D g_new0(WindbgState, 1); windbg_state_clean(windbg_state); =20 + chr =3D qemu_chr_new_noreplay("windbg", device, true); + if (!chr) { + return -1; + } + + qemu_chr_fe_init(&windbg_state->chr, chr, &error_abort); + qemu_chr_fe_set_handlers(&windbg_state->chr, windbg_chr_can_receive, + windbg_chr_receive, NULL, NULL, NULL, NULL, t= rue); + atexit(windbg_exit); return 0; }