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[201.54.102.232]) by smtp.gmail.com with ESMTPSA id x205sm38797774qka.56.2019.08.05.12.09.21 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 05 Aug 2019 12:09:23 -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; bh=Z/Dx1ta16cn55fWEn4uWVczq3jstV+9NQy0+kQziD18=; b=r5uFMW+Fx+6RwgUmjhxPp0gMPLmrqY0VVzQmsG1njosLmgvJn8w8BGvPj3ZKxHzCfH gG4E2ClG+3KXOsCmr4TGJRFroBMHuCy4KjPDQyPu0YKgiKpfFWNq3bhx3XYHf7TVI2On bajqhr17xR8FWIVpCeLoiKw8PQq0RUv8SMj+NwfnmIovkhjiJpuOaDxGm3LoygltknRM 8K3AgAoUmHTlEgx2UjsdIJLj1DTu9IsaGsbq859eNVhJRoVZBOQi/XtxxWNQ/Mp0A2rX SqGaVA28fihzRKy6ubL0qY3Aq+5Zw2HY/zSEjAUi6swyPcbGAsaT6rRbdwU4aNg9/HUZ Ifcw== 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; bh=Z/Dx1ta16cn55fWEn4uWVczq3jstV+9NQy0+kQziD18=; b=pOE08lfPF8Jn8VYUNA3eCUsFKkF501TwXeRV4yWEfnjzvUDARpUWlX+JbXDq8DwtHk AVtCvQyy8IGkuvl9DQZR4IirFy/pvN4xDnlytHQSbY02Ram6uNjAHZblUaxI1V1SdTIl K7l57eX4AhQATVK7l4VBLi4d09jNr+l3HRy7gEQz+ehhmVlO9oOH8U2bJMuscbnWj+gN JCLbDGi5gnrwOddk2UHP2Tdl+HT6tU7TE/7C2dBZ9mJQ/dIeRmQG+h9Hvn1e9cTakpiN SIvpY+U6prU8AekpY3n0cWRBSlxB0Xrlu3ztJW5gua1QFgFpj1TW5RlkA11+AzqQbcB8 FbGg== X-Gm-Message-State: APjAAAUjWG5bnnQAHszwkaD8YN5soRukS0xKihkOgEbE6KMFFP0fzb3C fjTNna6WafJeGonJ49sCJVGVOLIy X-Google-Smtp-Source: APXvYqwwyRaLJY/5BfjXcAzbNlR6NfGv6vGF9/3gi4Y97IuFa5Bcoi7l7squFENkHnvUDp/cQmTMlw== X-Received: by 2002:ae9:f303:: with SMTP id p3mr101635277qkg.320.1565032163924; Mon, 05 Aug 2019 12:09:23 -0700 (PDT) From: Ramiro Polla To: qemu-devel@nongnu.org Date: Mon, 5 Aug 2019 21:09:01 +0200 Message-Id: <20190805190901.14072-1-ramiro.polla@gmail.com> X-Mailer: git-send-email 2.11.0 X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4864:20::742 Subject: [Qemu-devel] [PATCH] gdbstub: Fix handling of '!' packet with new infra X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: philmd@redhat.com, Ramiro Polla , alex.bennee@linaro.org, arilou@gmail.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Since the '!' packet is not handled by the new infrastructure, gdb_handle_packet() would call run_cmd_parser() with a NULL cmd_parser value, which would lead to an unsupported packet ("$#00") being sent, which could confuse the gdb client. This also has a side-effect of speeding up the initial connection with gdb. Fixes: 3e2c12615b52 ("gdbstub: Implement deatch (D pkt) with new infra") Signed-off-by: Ramiro Polla --- gdbstub.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/gdbstub.c b/gdbstub.c index b470aec8ea..d051344488 100644 --- a/gdbstub.c +++ b/gdbstub.c @@ -2587,7 +2587,9 @@ static int gdb_handle_packet(GDBState *s, const char = *line_buf) break; } =20 - run_cmd_parser(s, line_buf, cmd_parser); + if (cmd_parser) { + run_cmd_parser(s, line_buf, cmd_parser); + } =20 return RS_IDLE; } --=20 2.11.0