From patchwork Wed Jun 22 10:04:35 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Llu=C3=ADs_Vilanova?= X-Patchwork-Id: 639079 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3rZL0K15kYz9sdg for ; Wed, 22 Jun 2016 20:08:49 +1000 (AEST) Received: from localhost ([::1]:56923 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bFf5T-0002Z5-0w for incoming@patchwork.ozlabs.org; Wed, 22 Jun 2016 06:08:47 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:43709) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bFf1h-0007qG-9X for qemu-devel@nongnu.org; Wed, 22 Jun 2016 06:04:57 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bFf1b-00015y-6a for qemu-devel@nongnu.org; Wed, 22 Jun 2016 06:04:52 -0400 Received: from roura.ac.upc.es ([147.83.33.10]:52657) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bFf1a-00015u-RO for qemu-devel@nongnu.org; Wed, 22 Jun 2016 06:04:47 -0400 Received: from gw-2.ac.upc.es (gw-2.ac.upc.es [147.83.30.8]) by roura.ac.upc.es (8.13.8/8.13.8) with ESMTP id u5MA4dQP029161; Wed, 22 Jun 2016 12:04:39 +0200 Received: from localhost (unknown [84.88.51.85]) by gw-2.ac.upc.es (Postfix) with ESMTPSA id DCB71758; Wed, 22 Jun 2016 12:04:35 +0200 (CEST) From: =?utf-8?b?TGx1w61z?= Vilanova To: qemu-devel@nongnu.org Date: Wed, 22 Jun 2016 12:04:35 +0200 Message-Id: <146658987563.20512.3974729430019474096.stgit@fimbulvetr.bsc.es> X-Mailer: git-send-email 2.8.1 In-Reply-To: <146658987022.20512.14981098714407053522.stgit@fimbulvetr.bsc.es> References: <146658987022.20512.14981098714407053522.stgit@fimbulvetr.bsc.es> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 X-MIME-Autoconverted: from 8bit to quoted-printable by roura.ac.upc.es id u5MA4dQP029161 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6.x X-Received-From: 147.83.33.10 Subject: [Qemu-devel] [PATCH v2 1/2] trace: [linux-user] Commandline arguments to control tracing 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: Riku Voipio , Stefan Hajnoczi Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Signed-off-by: Lluís Vilanova --- linux-user/main.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/linux-user/main.c b/linux-user/main.c index f8a8764..6d70821 100644 --- a/linux-user/main.c +++ b/linux-user/main.c @@ -33,6 +33,7 @@ #include "qemu/envlist.h" #include "elf.h" #include "exec/log.h" +#include "trace/control.h" char *exec_path; @@ -4000,6 +4001,22 @@ static void handle_arg_version(const char *arg) exit(EXIT_SUCCESS); } +static void handle_arg_trace_enable(const char *arg) +{ + trace_enable_events(arg); +} + +static void handle_arg_trace_events(const char *arg) +{ + trace_init_events(arg); +} + +static const char *trace_file = NULL; +static void handle_arg_trace_file(const char *arg) +{ + trace_file = arg; +} + struct qemu_argument { const char *argv; const char *env; @@ -4047,6 +4064,12 @@ static const struct qemu_argument arg_table[] = { "", "log system calls"}, {"seed", "QEMU_RAND_SEED", true, handle_arg_randseed, "", "Seed for pseudo-random number generator"}, + {"trace-enable", "QEMU_TRACE_ENABLE",true, handle_arg_trace_enable, + "name", "enable tracing of specified event names (pass 'help' to show a list of events)"}, + {"trace-events", "QEMU_TRACE_EVENTS",true, handle_arg_trace_events, + "eventsfile", "enable tracing of specified event names (one name/pattern per line)"}, + {"trace-file", "QEMU_TRACE_FILE", true, handle_arg_trace_file, + "tracefile", "output trace file"}, {"version", "QEMU_VERSION", false, handle_arg_version, "", "display version information and exit"}, {NULL, NULL, false, NULL, NULL, NULL} @@ -4238,6 +4261,11 @@ int main(int argc, char **argv, char **envp) optind = parse_args(argc, argv); + if (!trace_init_backends()) { + exit(1); + } + trace_init_file(trace_file); + /* Zero out regs */ memset(regs, 0, sizeof(struct target_pt_regs));