From nobody Sun Feb 8 22:07:09 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=gmail.com ARC-Seal: i=1; a=rsa-sha256; t=1559112593; cv=none; d=zoho.com; s=zohoarc; b=TGBwa2VMOgvHrJ85gESs8w/nwU0SCYG4QMiDQVL/vX3+YxY8Wy/mr62SHCsx6PfukQ/+jWRDsweo9G+oXj02afYs7hwzit7QUl7d5p1YkQJkTtBu4Wg9RyllnuFkIRAUJVmhejhStjcpmMJRM0n+c74sTjbeWEDs1HOLlakKEg0= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zoho.com; s=zohoarc; t=1559112593; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To:ARC-Authentication-Results; bh=2qe4jUb7Wrs/Gksk3zL4XfYnM/CEolczq1katmanDvA=; b=dEhpoI6NkIRUXiTpFWrRDErBYHTpxyRDCBxb38o8Ckxnp7rpAgcdCUtn/szC7rawkK1nZxyGs4fXRahKWV5H6Uf7fU0wjb+uTkcd8q57W8TstKrtdQq9ScAQBYNRDtf1oXuWb8Mic578Tsr51MWPWf+0ZjsrNWRNMR9WUAnD92g= ARC-Authentication-Results: i=1; mx.zoho.com; dkim=fail; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1559112593501827.6757035494115; Tue, 28 May 2019 23:49:53 -0700 (PDT) Received: from localhost ([127.0.0.1]:48300 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hVsPC-00074Q-DO for importer@patchew.org; Wed, 29 May 2019 02:49:46 -0400 Received: from eggs.gnu.org ([209.51.188.92]:45091) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hVsHm-0000y2-MJ for qemu-devel@nongnu.org; Wed, 29 May 2019 02:42:08 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hVsHl-0000FV-H7 for qemu-devel@nongnu.org; Wed, 29 May 2019 02:42:06 -0400 Received: from mail-wm1-x342.google.com ([2a00:1450:4864:20::342]:36798) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1hVsHl-00005B-BE for qemu-devel@nongnu.org; Wed, 29 May 2019 02:42:05 -0400 Received: by mail-wm1-x342.google.com with SMTP id v22so691296wml.1 for ; Tue, 28 May 2019 23:42:05 -0700 (PDT) Received: from linux.local ([31.154.166.148]) by smtp.gmail.com with ESMTPSA id f2sm6831168wme.12.2019.05.28.23.42.02 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Tue, 28 May 2019 23:42:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=2qe4jUb7Wrs/Gksk3zL4XfYnM/CEolczq1katmanDvA=; b=IbuIiXq2eGf7/gxLLkUDe10z821pzSAcDu1CEZMfWjjLQE4SFkxOqxI9+037vcCPvH 1cb6T/nmMimbcgUfiOaUaP9vpylZPxormXi5eNJp00Acr16Zmgc9xZaLto3U2zFkcwKW E1XQjuRpJSown8lo7pu9CBH/XjpWX6FCnTR+jrqWwdH40002kbsN+B4vmQm2F0sqRBES aspne1YVDqZpqh0ZAdXRzf8b5jDUOwg0fwKgN1/B03RCJzeazt5nPntjPmVrPrdVukoT 8Cu/T36+hoXN5g/ABxHIi+yGm05ep9WhXIImmC3N1PZZQnGWV5n+GMg6Qivi9ZHUGls1 oDng== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=2qe4jUb7Wrs/Gksk3zL4XfYnM/CEolczq1katmanDvA=; b=ZL2n5yv5lexvRCYyvD09yGuwrfL+CBRy18FBwISZ5EnEiyvoWbIUiGKCqioamqVfPS zqyFIMY1JowZjCcRqA7hLG/YGW1ZFZ0aARkBk3bALACRwkI4oqW5aw4qBj/EcDDgCzQD ZYDkjf5VM6G61qUh9+PgylcNS0jJ6/PEZc52k7mhUTVzH8kvmghmZIIoEUj25jiBbrI+ oO1XwkC4RgsRg6Lf+u1hJRtkYdc6fQSb+1aVkqeCMgmKqgz9d0I4w/P7q05qfl3Vh6/u qYkyogsMLKFmnWGiWDSnpK1PoenPqE3kkrqWbEmGEC4gSTtb750XAFiUBo3Ywvab/sxS 2NsQ== X-Gm-Message-State: APjAAAVk3ISD/ZkgvF0aopZVgMf2L2d8Ok5Bq9IX5JORasfq4tjMN1IT 6zeYjlaXAOPcnnk2JfF1+ANpedKs X-Google-Smtp-Source: APXvYqyh3wiRwJ0kmjhLQ13B3rQHLIvHA1TII+rNXSTV8+b7SGRmqO8AJLgPLxcYF6krchdDjW2GYA== X-Received: by 2002:a1c:411:: with SMTP id 17mr5161634wme.74.1559112123367; Tue, 28 May 2019 23:42:03 -0700 (PDT) From: Jon Doron To: qemu-devel@nongnu.org Date: Wed, 29 May 2019 09:41:30 +0300 Message-Id: <20190529064148.19856-3-arilou@gmail.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190529064148.19856-1-arilou@gmail.com> References: <20190529064148.19856-1-arilou@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2a00:1450:4864:20::342 Subject: [Qemu-devel] [PATCH v12 02/20] gdbstub: Implement deatch (D pkt) with new infra 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: alex.bennee@linaro.org, Jon Doron Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" Signed-off-by: Jon Doron Reviewed-by: Alex Benn=C3=A9e --- gdbstub.c | 101 +++++++++++++++++++++++++++++++++--------------------- 1 file changed, 61 insertions(+), 40 deletions(-) diff --git a/gdbstub.c b/gdbstub.c index e6d895177b..1db322c15a 100644 --- a/gdbstub.c +++ b/gdbstub.c @@ -1413,11 +1413,6 @@ static inline int startswith(const char *string, con= st char *pattern) return !strncmp(string, pattern, strlen(pattern)); } =20 -static int process_string_cmd( - GDBState *s, void *user_ctx, const char *data, - const GdbCmdParseEntry *cmds, int num_cmds) - __attribute__((unused)); - static int process_string_cmd(GDBState *s, void *user_ctx, const char *dat= a, const GdbCmdParseEntry *cmds, int num_cmds) { @@ -1463,6 +1458,55 @@ static int process_string_cmd(GDBState *s, void *use= r_ctx, const char *data, return -1; } =20 +static void run_cmd_parser(GDBState *s, const char *data, + const GdbCmdParseEntry *cmd) +{ + if (!data) { + return; + } + + /* In case there was an error during the command parsing we must + * send a NULL packet to indicate the command is not supported */ + if (process_string_cmd(s, NULL, data, cmd, 1)) { + put_packet(s, ""); + } +} + +static void handle_detach(GdbCmdContext *gdb_ctx, void *user_ctx) +{ + GDBProcess *process; + GDBState *s =3D gdb_ctx->s; + uint32_t pid =3D 1; + + if (s->multiprocess) { + if (!gdb_ctx->num_params) { + put_packet(s, "E22"); + return; + } + + pid =3D gdb_ctx->params[0].val_ul; + } + + process =3D gdb_get_process(s, pid); + gdb_process_breakpoint_remove_all(s, process); + process->attached =3D false; + + if (pid =3D=3D gdb_get_cpu_pid(s, s->c_cpu)) { + s->c_cpu =3D gdb_first_attached_cpu(s); + } + + if (pid =3D=3D gdb_get_cpu_pid(s, s->g_cpu)) { + s->g_cpu =3D gdb_first_attached_cpu(s); + } + + if (!s->c_cpu) { + /* No more process attached */ + gdb_syscall_mode =3D GDB_SYS_DISABLED; + gdb_continue(s); + } + put_packet(s, "OK"); +} + static int gdb_handle_packet(GDBState *s, const char *line_buf) { CPUState *cpu; @@ -1477,6 +1521,7 @@ static int gdb_handle_packet(GDBState *s, const char = *line_buf) uint8_t *registers; target_ulong addr, len; GDBThreadIdKind thread_kind; + const GdbCmdParseEntry *cmd_parser =3D NULL; =20 trace_gdbstub_io_command(line_buf); =20 @@ -1577,42 +1622,15 @@ static int gdb_handle_packet(GDBState *s, const cha= r *line_buf) error_report("QEMU: Terminated via GDBstub"); exit(0); case 'D': - /* Detach packet */ - pid =3D 1; - - if (s->multiprocess) { - unsigned long lpid; - if (*p !=3D ';') { - put_packet(s, "E22"); - break; - } - - if (qemu_strtoul(p + 1, &p, 16, &lpid)) { - put_packet(s, "E22"); - break; - } - - pid =3D lpid; - } - - process =3D gdb_get_process(s, pid); - gdb_process_breakpoint_remove_all(s, process); - process->attached =3D false; - - if (pid =3D=3D gdb_get_cpu_pid(s, s->c_cpu)) { - s->c_cpu =3D gdb_first_attached_cpu(s); - } - - if (pid =3D=3D gdb_get_cpu_pid(s, s->g_cpu)) { - s->g_cpu =3D gdb_first_attached_cpu(s); - } - - if (s->c_cpu =3D=3D NULL) { - /* No more process attached */ - gdb_syscall_mode =3D GDB_SYS_DISABLED; - gdb_continue(s); + { + static const GdbCmdParseEntry detach_cmd_desc =3D { + .handler =3D handle_detach, + .cmd =3D "D", + .cmd_startswith =3D 1, + .schema =3D "?.l0" + }; + cmd_parser =3D &detach_cmd_desc; } - put_packet(s, "OK"); break; case 's': if (*p !=3D '\0') { @@ -1985,6 +2003,9 @@ static int gdb_handle_packet(GDBState *s, const char = *line_buf) put_packet(s, buf); break; } + + run_cmd_parser(s, line_buf, cmd_parser); + return RS_IDLE; } =20 --=20 2.21.0