--- /dev/null
+Linux Trace Toolkit Viewer
+
+Contributors :
+
+Michel Dagenais (New trace format, lttv main)
+Mathieu Desnoyers (Kernel Tracer, Directory structure, build with automake/conf,
+ lttv gui, control flow view, gui cooperative trace reading
+ scheduler with interruptible foreground and background
+ computation, detailed event list (rewrite), trace reading
+ library (rewrite))
+Benoit Des Ligneris, Éric Clement (Cluster adaptation, work in progress)
+Xang-Xiu Yang (trace reading library and converter, lttv gui,
+ detailed event list and statistics view)
+Tom Zanussi (RelayFS)
+
+Strongly inspired from the original Linux Trace Toolkit Visualizer made by
+Karim Yaghmour.
+
+Linux Trace Toolkit Viewer, Copyright (C) 2004
+ Michel Dagenais
+ Mathieu Desnoyers
+ Xang-Xiu Yang
+Linux Trace Toolkit comes with ABSOLUTELY NO WARRANTY.
+This is free software, and you are welcome to redistribute it
+under certain conditions. See COPYING for details.
--- /dev/null
+SUBDIRS = liblttctl lttctl lttd specs
+
--- /dev/null
+ltt-control package README
+--------------------------
+Mathieu Desnoyers
+Last update: 2007/05/14
+
+
+This package contains the lttd, lttctl and liblttctl programs which are
+necessary to obtain a trace. It also contains the facilities directory, where
+sits the trace metainformation.
+
+* Compiling
+
+gcc 3.2 or better
+glib 2.4 or better development libraries
+ (Debian : libglib2.0-0, libglib2.0-dev)
+ (Fedora : glib2, glib2-devel)
+libc6 development librairies
+ (Debian : libc6, libc6-dev)
+ (Fedora : glibc, glibc)
+
+
+To compile the source tree from a tarball, simply follow these steps :
+
+- ./configure
+- make
+- make install
+
+After running ./configure, you can also go in specific subdirectories and
+use make, make install.
+
+
+* Quick Start
+
+See the LTTV package QUICKSTART file.
+
+
+* Source Tree Structure
+
+Here is the tree structure of the ltt-control package.
+
+ltt/ New trace format reading library.
+liblttctl/ Library to communicate with the kernel tracer control module.
+lttctl/ Command line program to use the liblttctl library.
+lttd/ Linux Trace Toolkit daemon.
+README This file.
+
+
+* For Developers
+
+This source tree is based on the autotools suite from GNU to simplify
+portability. Here are some things you should have on your system in order to
+compile the subversion repository tree :
+
+- GNU autotools (automake >=1.7, autoconf >=2.50, autoheader >=2.50)
+ (make sure your system wide "automake" points to a recent version!)
+- GNU Libtool
+ (for more information, go to http://www.gnu.org/software/autoconf/)
+
+If you get the tree from the repository, you will need to use the autogen.sh
+script. It calls all the GNU tools needed to prepare the tree configuration.
--- /dev/null
+#!/bin/sh
+# Run this to generate all the initial makefiles, etc.
+
+srcdir=`dirname $0`
+test -z "$srcdir" && srcdir=.
+
+DIE=0
+
+(test -f $srcdir/configure.in) || {
+ echo -n "**Error**: Directory "\`$srcdir\'" does not look like the"
+ echo " top-level package directory"
+ exit 1
+}
+
+(autoconf --version) < /dev/null > /dev/null 2>&1 || {
+ echo
+ echo "**Error**: You must have \`autoconf' installed."
+ echo "Download the appropriate package for your distribution,"
+ echo "or get the source tarball at ftp://ftp.gnu.org/pub/gnu/"
+ DIE=1
+}
+
+(grep "^AC_PROG_INTLTOOL" $srcdir/configure.in >/dev/null) && {
+ (intltoolize --version) < /dev/null > /dev/null 2>&1 || {
+ echo
+ echo "**Error**: You must have \`intltool' installed."
+ echo "You can get it from:"
+ echo " ftp://ftp.gnome.org/pub/GNOME/"
+ DIE=1
+ }
+}
+
+(grep "^AM_PROG_XML_I18N_TOOLS" $srcdir/configure.in >/dev/null) && {
+ (xml-i18n-toolize --version) < /dev/null > /dev/null 2>&1 || {
+ echo
+ echo "**Error**: You must have \`xml-i18n-toolize' installed."
+ echo "You can get it from:"
+ echo " ftp://ftp.gnome.org/pub/GNOME/"
+ DIE=1
+ }
+}
+
+(grep "^AM_PROG_LIBTOOL" $srcdir/configure.in >/dev/null) && {
+ (libtool --version) < /dev/null > /dev/null 2>&1 || {
+ echo
+ echo "**Error**: You must have \`libtool' installed."
+ echo "You can get it from: ftp://ftp.gnu.org/pub/gnu/"
+ DIE=1
+ }
+}
+
+(grep "^AM_GLIB_GNU_GETTEXT" $srcdir/configure.in >/dev/null) && {
+ (grep "sed.*POTFILES" $srcdir/configure.in) > /dev/null || \
+ (glib-gettextize --version) < /dev/null > /dev/null 2>&1 || {
+ echo
+ echo "**Error**: You must have \`glib' installed."
+ echo "You can get it from: ftp://ftp.gtk.org/pub/gtk"
+ DIE=1
+ }
+}
+
+(automake --version) < /dev/null > /dev/null 2>&1 || {
+ echo
+ echo "**Error**: You must have \`automake' installed."
+ echo "You can get it from: ftp://ftp.gnu.org/pub/gnu/"
+ DIE=1
+ NO_AUTOMAKE=yes
+}
+
+
+# if no automake, don't bother testing for aclocal
+test -n "$NO_AUTOMAKE" || (aclocal --version) < /dev/null > /dev/null 2>&1 || {
+ echo
+ echo "**Error**: Missing \`aclocal'. The version of \`automake'"
+ echo "installed doesn't appear recent enough."
+ echo "You can get automake from ftp://ftp.gnu.org/pub/gnu/"
+ DIE=1
+}
+
+if test "$DIE" -eq 1; then
+ exit 1
+fi
+
+if test -z "$*"; then
+ echo "**Warning**: I am going to run \`configure' with no arguments."
+ echo "If you wish to pass any to it, please specify them on the"
+ echo \`$0\'" command line."
+ echo
+fi
+
+case $CC in
+xlc )
+ am_opt=--include-deps;;
+esac
+
+for coin in `find $srcdir -path $srcdir/CVS -prune -o -name configure.in -print`
+do
+ dr=`dirname $coin`
+ if test -f $dr/NO-AUTO-GEN; then
+ echo skipping $dr -- flagged as no auto-gen
+ else
+ echo processing $dr
+ ( cd $dr
+
+ aclocalinclude="$ACLOCAL_FLAGS"
+
+ if grep "^AM_GLIB_GNU_GETTEXT" configure.in >/dev/null; then
+ echo "Creating $dr/aclocal.m4 ..."
+ test -r $dr/aclocal.m4 || touch $dr/aclocal.m4
+ echo "Running glib-gettextize... Ignore non-fatal messages."
+ echo "no" | glib-gettextize --force --copy
+ echo "Making $dr/aclocal.m4 writable ..."
+ test -r $dr/aclocal.m4 && chmod u+w $dr/aclocal.m4
+ fi
+ if grep "^AC_PROG_INTLTOOL" configure.in >/dev/null; then
+ echo "Running intltoolize..."
+ intltoolize --copy --force --automake
+ fi
+ if grep "^AM_PROG_XML_I18N_TOOLS" configure.in >/dev/null; then
+ echo "Running xml-i18n-toolize..."
+ xml-i18n-toolize --copy --force --automake
+ fi
+ if grep "^AM_PROG_LIBTOOL" configure.in >/dev/null; then
+ if test -z "$NO_LIBTOOLIZE" ; then
+ echo "Running libtoolize..."
+ libtoolize --force --copy
+ fi
+ fi
+ echo "Running aclocal $aclocalinclude ..."
+ aclocal $aclocalinclude
+ if grep "^AM_CONFIG_HEADER" configure.in >/dev/null; then
+ echo "Running autoheader..."
+ autoheader
+ fi
+ echo "Running automake --gnu $am_opt ..."
+ automake --add-missing --gnu $am_opt
+ echo "Running autoconf ..."
+ autoconf
+ )
+ fi
+done
+
+conf_flags="--enable-maintainer-mode"
+
+
+#if [ -a "$srcdir/include" ]; then
+# echo -n Removing old system include behavior emulation...
+# rm -rf $srcdir/include
+# echo done.
+#fi
+#echo -n Creating the system include behavior emulation...
+#mkdir $srcdir/include
+#mkdir $srcdir/include/ltt
+#ln -sf ../../LibLTT/ltt.h $srcdir/include/ltt/ltt.h
+#mkdir $srcdir/include/lttv
+#ln -sf ../../lttv/module.h $srcdir/include/lttv/module.h
+#ln -sf ../../lttv/hook.h $srcdir/include/lttv/hook.h
+#ln -sf ../../lttv/traceWindow.h $srcdir/include/lttv/traceWindow.h
+#echo done.
+
+
+
+if test x$NOCONFIGURE = x; then
+ echo Running $srcdir/configure $conf_flags "$@" ...
+ $srcdir/configure $conf_flags "$@" \
+ && echo Now type \`make\' to compile. || exit 1
+else
+ echo Skipping configure process.
+fi
--- /dev/null
+# This file is part of the Linux Trace Toolkit viewer
+# Copyright (C) 2003-2004 Mathieu Desnoyers
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License Version 2 as
+# published by the Free Software Foundation;
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+# MA 02111-1307, USA.
+
+
+
+# -*- Autoconf -*-
+# Process this file with autoconf to produce a configure script.
+
+AC_PREREQ(2.57)
+AC_INIT(FULL-PACKAGE-NAME, VERSION, BUG-REPORT-ADDRESS)
+#AC_WITH_LTDL # not needed ?
+AM_INIT_AUTOMAKE(ltt-control,0.51-12082008)
+AM_CONFIG_HEADER(config.h)
+AM_PROG_LIBTOOL
+
+AC_PATH_PROGS(BASH, bash)
+
+AC_SYS_LARGEFILE
+
+# Checks for programs.
+AC_PROG_CC
+
+AC_CHECK_LIB([util], [forkpty], UTIL_LIBS="-lutil", AC_MSG_ERROR([libutil is
+required in order to compile LinuxTraceToolkit]))
+
+
+# pthread for lttd
+AC_CHECK_LIB(pthread, pthread_join,[THREAD_LIBS="-lpthread"], AC_MSG_ERROR([LinuxThreads is required in order to compile lttd]))
+
+# Checks for header files.
+AC_HEADER_STDC
+AC_CHECK_HEADERS([fcntl.h stdlib.h string.h sys/time.h unistd.h pthread.h])
+
+AC_ISC_POSIX
+AC_PROG_CC
+AM_PROG_CC_STDC
+AC_HEADER_STDC
+
+PACKAGE_CFLAGS="-Wall -Wformat"
+AC_SUBST(PACKAGE_CFLAGS)
+AC_SUBST(PACKAGE_LIBS)
+
+# Checks for typedefs, structures, and compiler characteristics.
+AC_HEADER_STDBOOL
+AC_C_CONST
+AC_C_INLINE
+AC_TYPE_OFF_T
+AC_TYPE_SIZE_T
+AC_HEADER_TIME
+
+# Checks for library functions.
+AC_FUNC_ERROR_AT_LINE
+#AC_FUNC_MALLOC
+AC_FUNC_SELECT_ARGTYPES
+AC_CHECK_FUNCS([select])
+
+#CPPFLAGS="$CPPFLAGS -I"
+
+DEFAULT_INCLUDES="-I\$(top_srcdir) -I\$(top_builddir)"
+
+#CPPFLAGS="${GLIB_CFLAGS}"
+#AC_SUBST(CPPFLAGS)
+
+lttctlincludedir="${includedir}/liblttctl"
+
+AC_SUBST(lttctlincludedir)
+AC_SUBST(UTIL_LIBS)
+AC_SUBST(THREAD_LIBS)
+AC_SUBST(DEFAULT_INCLUDES)
+
+AC_CONFIG_FILES([Makefile
+ liblttctl/Makefile
+ lttctl/Makefile
+ lttd/Makefile
+ specs/Makefile])
+AC_OUTPUT
--- /dev/null
+
+
+lib_LTLIBRARIES = liblttctl.la
+liblttctl_la_SOURCES = liblttctl.c
+
+lttctlinclude_HEADERS = \
+ lttctl.h
--- /dev/null
+/* libltt
+ *
+ * Linux Trace Toolkit Netlink Control Library
+ *
+ * Controls the ltt-control kernel module through a netlink socket.
+ *
+ * Heavily inspired from libipq.c (iptables) made by
+ * James Morris <jmorris@intercode.com.au>
+ *
+ * Copyright 2005 -
+ * Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <liblttctl/lttctl.h>
+#include <errno.h>
+#include <stdio.h>
+#include <error.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <string.h>
+
+
+
+/* Private interface */
+
+enum {
+ LTTCTL_ERR_NONE = 0,
+ LTTCTL_ERR_IMPL,
+ LTTCTL_ERR_HANDLE,
+ LTTCTL_ERR_SOCKET,
+ LTTCTL_ERR_BIND,
+ LTTCTL_ERR_BUFFER,
+ LTTCTL_ERR_RECV,
+ LTTCTL_ERR_NLEOF,
+ LTTCTL_ERR_ADDRLEN,
+ LTTCTL_ERR_STRUNC,
+ LTTCTL_ERR_RTRUNC,
+ LTTCTL_ERR_NLRECV,
+ LTTCTL_ERR_SEND,
+ LTTCTL_ERR_SUPP,
+ LTTCTL_ERR_RECVBUF,
+ LTTCTL_ERR_TIMEOUT,
+ LTTCTL_ERR_PROTOCOL
+};
+#define LTTCTL_MAXERR LTTCTL_ERR_PROTOCOL
+
+
+struct lttctl_errmap_t {
+ int errcode;
+ char *message;
+} lttctl_errmap[] = {
+ { LTTCTL_ERR_NONE, "Unknown error" },
+ { LTTCTL_ERR_IMPL, "Implementation error" },
+ { LTTCTL_ERR_HANDLE, "Unable to create netlink handle" },
+ { LTTCTL_ERR_SOCKET, "Unable to create netlink socket" },
+ { LTTCTL_ERR_BIND, "Unable to bind netlink socket" },
+ { LTTCTL_ERR_BUFFER, "Unable to allocate buffer" },
+ { LTTCTL_ERR_RECV, "Failed to receive netlink message" },
+ { LTTCTL_ERR_NLEOF, "Received EOF on netlink socket" },
+ { LTTCTL_ERR_ADDRLEN, "Invalid peer address length" },
+ { LTTCTL_ERR_STRUNC, "Sent message truncated" },
+ { LTTCTL_ERR_RTRUNC, "Received message truncated" },
+ { LTTCTL_ERR_NLRECV, "Received error from netlink" },
+ { LTTCTL_ERR_SEND, "Failed to send netlink message" },
+ { LTTCTL_ERR_SUPP, "Operation not supported" },
+ { LTTCTL_ERR_RECVBUF, "Receive buffer size invalid" },
+ { LTTCTL_ERR_TIMEOUT, "Timeout"},
+ { LTTCTL_ERR_PROTOCOL, "Invalid protocol specified" }
+};
+
+static int lttctl_errno = LTTCTL_ERR_NONE;
+
+
+static ssize_t lttctl_netlink_sendto(const struct lttctl_handle *h,
+ const void *msg, size_t len);
+
+static ssize_t lttctl_netlink_recvfrom(const struct lttctl_handle *h,
+ unsigned char *buf, size_t len,
+ int timeout);
+
+static ssize_t lttctl_netlink_sendmsg(const struct lttctl_handle *h,
+ const struct msghdr *msg,
+ unsigned int flags);
+
+static char *lttctl_strerror(int errcode);
+
+void lttctl_perror(const char *s);
+
+static ssize_t lttctl_netlink_sendto(const struct lttctl_handle *h,
+ const void *msg, size_t len)
+{
+ int status = sendto(h->fd, msg, len, 0,
+ (struct sockaddr *)&h->peer, sizeof(h->peer));
+ if (status < 0)
+ lttctl_errno = LTTCTL_ERR_SEND;
+
+ return status;
+}
+
+static ssize_t lttctl_netlink_sendmsg(const struct lttctl_handle *h,
+ const struct msghdr *msg,
+ unsigned int flags)
+{
+ int status = sendmsg(h->fd, msg, flags);
+ if (status < 0)
+ lttctl_errno = LTTCTL_ERR_SEND;
+ return status;
+}
+
+static ssize_t lttctl_netlink_recvfrom(const struct lttctl_handle *h,
+ unsigned char *buf, size_t len,
+ int timeout)
+{
+ int addrlen, status;
+ struct nlmsghdr *nlh;
+
+ if (len < sizeof(struct nlmsghdr)) {
+ lttctl_errno = LTTCTL_ERR_RECVBUF;
+ lttctl_perror("Netlink recvfrom");
+ return -1;
+ }
+ addrlen = sizeof(h->peer);
+
+ if (timeout != 0) {
+ int ret;
+ struct timeval tv;
+ fd_set read_fds;
+
+ if (timeout < 0) {
+ /* non-block non-timeout */
+ tv.tv_sec = 0;
+ tv.tv_usec = 0;
+ } else {
+ tv.tv_sec = timeout / 1000000;
+ tv.tv_usec = timeout % 1000000;
+ }
+
+ FD_ZERO(&read_fds);
+ FD_SET(h->fd, &read_fds);
+ ret = select(h->fd+1, &read_fds, NULL, NULL, &tv);
+ if (ret < 0) {
+ if (errno == EINTR) {
+ printf("eintr\n");
+ return 0;
+ } else {
+ lttctl_errno = LTTCTL_ERR_RECV;
+ lttctl_perror("Netlink recvfrom");
+ return -1;
+ }
+ }
+ if (!FD_ISSET(h->fd, &read_fds)) {
+ lttctl_errno = LTTCTL_ERR_TIMEOUT;
+ printf("timeout\n");
+ return 0;
+ }
+ }
+ status = recvfrom(h->fd, buf, len, 0,
+ (struct sockaddr *)&h->peer, &addrlen);
+
+ if (status < 0) {
+ lttctl_errno = LTTCTL_ERR_RECV;
+ lttctl_perror("Netlink recvfrom");
+ return status;
+ }
+ if (addrlen != sizeof(h->peer)) {
+ lttctl_errno = LTTCTL_ERR_RECV;
+ lttctl_perror("Netlink recvfrom");
+ return -1;
+ }
+ if (h->peer.nl_pid != 0) {
+ lttctl_errno = LTTCTL_ERR_RECV;
+ lttctl_perror("Netlink recvfrom");
+ return -1;
+ }
+ if (status == 0) {
+ lttctl_errno = LTTCTL_ERR_NLEOF;
+ lttctl_perror("Netlink recvfrom");
+ return -1;
+ }
+ nlh = (struct nlmsghdr *)buf;
+ if (nlh->nlmsg_flags & MSG_TRUNC || nlh->nlmsg_len > status) {
+ lttctl_errno = LTTCTL_ERR_RTRUNC;
+ lttctl_perror("Netlink recvfrom");
+ return -1;
+ }
+
+
+ return status;
+}
+
+
+static char *lttctl_strerror(int errcode)
+{
+ if (errcode < 0 || errcode > LTTCTL_MAXERR)
+ errcode = LTTCTL_ERR_IMPL;
+ return lttctl_errmap[errcode].message;
+}
+
+
+char *lttctl_errstr(void)
+{
+ return lttctl_strerror(lttctl_errno);
+}
+
+void lttctl_perror(const char *s)
+{
+ if (s)
+ fputs(s, stderr);
+ else
+ fputs("ERROR", stderr);
+ if (lttctl_errno)
+ fprintf(stderr, ": %s", lttctl_errstr());
+ if (errno)
+ fprintf(stderr, ": %s", strerror(errno));
+ fputc('\n', stderr);
+}
+
+/* public interface */
+
+/*
+ * Create and initialise an lttctl handle.
+ */
+struct lttctl_handle *lttctl_create_handle(void)
+{
+ int status;
+ struct lttctl_handle *h;
+
+ h = (struct lttctl_handle *)malloc(sizeof(struct lttctl_handle));
+ if (h == NULL) {
+ lttctl_errno = LTTCTL_ERR_HANDLE;
+ lttctl_perror("Create handle");
+ goto alloc_error;
+ }
+
+ memset(h, 0, sizeof(struct lttctl_handle));
+
+ h->fd = socket(PF_NETLINK, SOCK_RAW, NETLINK_LTT);
+
+ if (h->fd == -1) {
+ lttctl_errno = LTTCTL_ERR_SOCKET;
+ lttctl_perror("Create handle");
+ goto socket_error;
+ }
+ memset(&h->local, 0, sizeof(struct sockaddr_nl));
+ h->local.nl_family = AF_NETLINK;
+ h->local.nl_pid = getpid();
+ h->local.nl_groups = 0;
+ status = bind(h->fd, (struct sockaddr *)&h->local, sizeof(h->local));
+ if (status == -1) {
+ lttctl_errno = LTTCTL_ERR_BIND;
+ lttctl_perror("Create handle");
+ goto bind_error;
+ }
+ memset(&h->peer, 0, sizeof(struct sockaddr_nl));
+ h->peer.nl_family = AF_NETLINK;
+ h->peer.nl_pid = 0;
+ h->peer.nl_groups = 0;
+ return h;
+
+ /* Error condition */
+bind_error:
+socket_error:
+ close(h->fd);
+alloc_error:
+ free(h);
+ return NULL;
+}
+
+/*
+ * No error condition is checked here at this stage, but it may happen
+ * if/when reliable messaging is implemented.
+ */
+int lttctl_destroy_handle(struct lttctl_handle *h)
+{
+ if (h) {
+ close(h->fd);
+ free(h);
+ }
+ return 0;
+}
+
+
+int lttctl_create_trace(const struct lttctl_handle *h,
+ char *name, enum trace_mode mode, char *trace_type,
+ unsigned subbuf_size_low, unsigned n_subbufs_low,
+ unsigned subbuf_size_med, unsigned n_subbufs_med,
+ unsigned subbuf_size_high, unsigned n_subbufs_high)
+{
+ int err;
+
+ struct {
+ struct nlmsghdr nlh;
+ lttctl_peer_msg_t msg;
+ } req;
+ struct {
+ struct nlmsghdr nlh;
+ struct nlmsgerr nlerr;
+ lttctl_peer_msg_t msg;
+ } ack;
+
+ memset(&req, 0, sizeof(req));
+ req.nlh.nlmsg_len = NLMSG_LENGTH(sizeof(lttctl_peer_msg_t));
+ req.nlh.nlmsg_flags = NLM_F_REQUEST|NLM_F_ACK;
+ req.nlh.nlmsg_type = LTTCTLM_CONTROL;
+ req.nlh.nlmsg_pid = h->local.nl_pid;
+ req.nlh.nlmsg_seq = 0;
+
+ strncpy(req.msg.trace_name, name, NAME_MAX);
+ strncpy(req.msg.trace_type, trace_type, NAME_MAX);
+ req.msg.op = OP_CREATE;
+ req.msg.args.new_trace.mode = mode;
+ req.msg.args.new_trace.subbuf_size_low = subbuf_size_low;
+ req.msg.args.new_trace.n_subbufs_low = n_subbufs_low;
+ req.msg.args.new_trace.subbuf_size_med = subbuf_size_med;
+ req.msg.args.new_trace.n_subbufs_med = n_subbufs_med;
+ req.msg.args.new_trace.subbuf_size_high = subbuf_size_high;
+ req.msg.args.new_trace.n_subbufs_high = n_subbufs_high;
+
+ err = lttctl_netlink_sendto(h, (void *)&req, req.nlh.nlmsg_len);
+ if(err < 0) goto senderr;
+
+ err = lttctl_netlink_recvfrom(h, (void*)&ack, sizeof(ack), 0);
+ if(err < 0) goto senderr;
+
+ err = ack.nlerr.error;
+ if(err != 0) {
+ errno = err;
+ lttctl_perror("Create Trace Error");
+ return err;
+ }
+
+ return 0;
+
+senderr:
+ lttctl_perror("Create Trace Error");
+ err = EPERM;
+ return err;
+}
+
+int lttctl_destroy_trace(const struct lttctl_handle *h,
+ char *name)
+{
+ struct {
+ struct nlmsghdr nlh;
+ lttctl_peer_msg_t msg;
+ } req;
+ struct {
+ struct nlmsghdr nlh;
+ struct nlmsgerr nlerr;
+ lttctl_peer_msg_t msg;
+ } ack;
+ int err;
+
+ memset(&req, 0, sizeof(req));
+ req.nlh.nlmsg_len = NLMSG_LENGTH(sizeof(lttctl_peer_msg_t));
+ req.nlh.nlmsg_flags = NLM_F_REQUEST;
+ req.nlh.nlmsg_type = LTTCTLM_CONTROL;
+ req.nlh.nlmsg_pid = h->local.nl_pid;
+
+ strncpy(req.msg.trace_name, name, NAME_MAX);
+ req.msg.op = OP_DESTROY;
+
+ err = lttctl_netlink_sendto(h, (void *)&req, req.nlh.nlmsg_len);
+ if(err < 0) goto senderr;
+
+ err = lttctl_netlink_recvfrom(h, (void*)&ack, sizeof(ack), 0);
+ if(err < 0) goto senderr;
+
+ err = ack.nlerr.error;
+ if(err != 0) {
+ errno = err;
+ lttctl_perror("Destroy Trace Channels Error");
+ return err;
+ }
+
+ return 0;
+
+senderr:
+ lttctl_perror("Destroy Trace Channels Error");
+ err = EPERM;
+ return err;
+
+}
+
+int lttctl_start(const struct lttctl_handle *h,
+ char *name)
+{
+ struct {
+ struct nlmsghdr nlh;
+ lttctl_peer_msg_t msg;
+ } req;
+ struct {
+ struct nlmsghdr nlh;
+ struct nlmsgerr nlerr;
+ lttctl_peer_msg_t msg;
+ } ack;
+
+ int err;
+
+ memset(&req, 0, sizeof(req));
+ req.nlh.nlmsg_len = NLMSG_LENGTH(sizeof(lttctl_peer_msg_t));
+ req.nlh.nlmsg_flags = NLM_F_REQUEST;
+ req.nlh.nlmsg_type = LTTCTLM_CONTROL;
+ req.nlh.nlmsg_pid = h->local.nl_pid;
+
+ strncpy(req.msg.trace_name, name, NAME_MAX);
+ req.msg.op = OP_START;
+
+ err = lttctl_netlink_sendto(h, (void *)&req, req.nlh.nlmsg_len);
+ if(err < 0) goto senderr;
+
+ err = lttctl_netlink_recvfrom(h, (void*)&ack, sizeof(ack), 0);
+ if(err < 0) goto senderr;
+
+ err = ack.nlerr.error;
+ if(err != 0) {
+ errno = err;
+ lttctl_perror("Start Trace Error");
+ return err;
+ }
+
+ return 0;
+
+senderr:
+ err = EPERM;
+ lttctl_perror("Start Trace Error");
+ return err;
+
+}
+
+int lttctl_stop(const struct lttctl_handle *h,
+ char *name)
+{
+ struct {
+ struct nlmsghdr nlh;
+ lttctl_peer_msg_t msg;
+ } req;
+ struct {
+ struct nlmsghdr nlh;
+ struct nlmsgerr nlerr;
+ lttctl_peer_msg_t msg;
+ } ack;
+ int err;
+
+ memset(&req, 0, sizeof(req));
+ req.nlh.nlmsg_len = NLMSG_LENGTH(sizeof(lttctl_peer_msg_t));
+ req.nlh.nlmsg_flags = NLM_F_REQUEST;
+ req.nlh.nlmsg_type = LTTCTLM_CONTROL;
+ req.nlh.nlmsg_pid = h->local.nl_pid;
+
+ strncpy(req.msg.trace_name, name, NAME_MAX);
+ req.msg.op = OP_STOP;
+
+ err = lttctl_netlink_sendto(h, (void *)&req, req.nlh.nlmsg_len);
+ if(err < 0) goto senderr;
+
+ err = lttctl_netlink_recvfrom(h, (void*)&ack, sizeof(ack), 0);
+ if(err < 0) goto senderr;
+
+ err = ack.nlerr.error;
+ if(err != 0) {
+ errno = err;
+ lttctl_perror("Stop Trace Error");
+ return err;
+ }
+
+ return 0;
+
+senderr:
+ err = EPERM;
+ lttctl_perror("Stop Trace Error");
+ return err;
+}
+
--- /dev/null
+/* libltt header file
+ *
+ * Copyright 2005-
+ * Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ *
+ * Inspired from iptables, by James Morris <jmorris@intercode.com.au>.
+ *
+ */
+
+#ifndef _LIBLTT_H
+#define _LIBLTT_H
+
+#include <linux/limits.h>
+#include <asm/types.h>
+#include <sys/socket.h>
+#include <linux/netlink.h>
+
+#ifndef NETLINK_LTT
+#define NETLINK_LTT 31
+#endif
+
+
+enum trace_op {
+ OP_CREATE,
+ OP_DESTROY,
+ OP_START,
+ OP_STOP,
+ OP_NONE
+};
+
+enum trace_mode {
+ LTT_TRACE_NORMAL,
+ LTT_TRACE_FLIGHT,
+ LTT_TRACE_HYBRID
+};
+
+typedef struct lttctl_peer_msg {
+ char trace_name[NAME_MAX];
+ char trace_type[NAME_MAX];
+ enum trace_op op;
+ union {
+ struct {
+ enum trace_mode mode;
+ unsigned subbuf_size_low;
+ unsigned n_subbufs_low;
+ unsigned subbuf_size_med;
+ unsigned n_subbufs_med;
+ unsigned subbuf_size_high;
+ unsigned n_subbufs_high;
+ } new_trace;
+ } args;
+} lttctl_peer_msg_t;
+
+
+struct lttctl_handle
+{
+ int fd;
+ //u_int8_t blocking;
+ struct sockaddr_nl local;
+ struct sockaddr_nl peer;
+};
+
+typedef struct lttctl_resp_msg {
+ int err;
+} lttctl_resp_msg_t;
+
+struct lttctl_handle *lttctl_create_handle(void);
+
+int lttctl_destroy_handle(struct lttctl_handle *h);
+
+
+int lttctl_create_trace(const struct lttctl_handle *h,
+ char *name, enum trace_mode mode, char *trace_type,
+ unsigned subbuf_size_low, unsigned n_subbufs_low,
+ unsigned subbuf_size_med, unsigned n_subbufs_med,
+ unsigned subbuf_size_high, unsigned n_subbufs_high);
+
+int lttctl_destroy_trace(const struct lttctl_handle *handle, char *name);
+
+int lttctl_start(const struct lttctl_handle *handle, char *name);
+
+int lttctl_stop(const struct lttctl_handle *handle, char *name);
+
+#define LTTCTLM_BASE 0x10
+#define LTTCTLM_CONTROL (LTTCTLM_BASE + 1) /* LTT control message */
+
+#endif //_LIBLTT_H
--- /dev/null
+## Process this file with automake to produce Makefile.in
+
+AM_CFLAGS = -DPACKAGE_DATA_DIR=\""$(datadir)"\" -DPACKAGE_BIN_DIR=\""$(bindir)"\"
+
+bin_PROGRAMS = lttctl
+bin_SCRIPTS = ltt-armall ltt-disarmall ltt-armalluser ltt-disarmalluser \
+ ltt-armtap ltt-disarmtap
+CLEANFILES = $(bin_SCRIPTS)
+EXTRA_DIST = ltt-armall.sh ltt-disarmall.sh \
+ ltt-armalluser.sh ltt-disarmalluser.sh \
+ ltt-armtap.sh ltt-disarmtap.sh
+
+ltt-armall: ltt-armall.sh
+ rm -f ltt-armall
+ echo "#!"$(BASH) > ltt-armall
+ cat $(srcdir)/ltt-armall.sh >> ltt-armall
+ chmod ugo+x ltt-armall
+
+ltt-disarmall: ltt-disarmall.sh
+ rm -f ltt-disarmall
+ echo "#!"$(BASH) > ltt-disarmall
+ cat $(srcdir)/ltt-disarmall.sh >> ltt-disarmall
+ chmod ugo+x ltt-disarmall
+
+ltt-armtap: ltt-armtap.sh
+ rm -f ltt-armtap
+ echo "#!"$(BASH) > ltt-armtap
+ cat $(srcdir)/ltt-armtap.sh >> ltt-armtap
+ chmod ugo+x ltt-armtap
+
+ltt-disarmtap: ltt-disarmtap.sh
+ rm -f ltt-disarmtap
+ echo "#!"$(BASH) > ltt-disarmtap
+ cat $(srcdir)/ltt-disarmtap.sh >> ltt-disarmtap
+ chmod ugo+x ltt-disarmtap
+
+ltt-armalluser: ltt-armalluser.sh
+ rm -f ltt-armalluser
+ echo "#!"$(BASH) > ltt-armalluser
+ cat $(srcdir)/ltt-armalluser.sh >> ltt-armalluser
+ chmod ugo+x ltt-armalluser
+
+ltt-disarmalluser: ltt-disarmalluser.sh
+ rm -f ltt-disarmalluser
+ echo "#!"$(BASH) > ltt-disarmalluser
+ cat $(srcdir)/ltt-disarmalluser.sh >> ltt-disarmalluser
+ chmod ugo+x ltt-disarmalluser
+
+lttctl_SOURCES = \
+ lttctl.c
+lttctl_DEPENDENCIES = ../liblttctl/liblttctl.la
+lttctl_LDADD = $(lttctl_DEPENDENCIES)
+
--- /dev/null
+#excluding core markers (already connected)
+#excluding locking markers (high traffic)
+
+echo Connecting all markers
+MARKERS=`cat /proc/ltt|grep -v %k|awk '{print $2}'|sort -u|grep -v ^core_|grep -v ^locking_|grep -v ^lockdep_`
+
+for a in $MARKERS; do
+ echo Connecting $a
+
+ #redirect markers carrying state information to dedicated channels
+ case $a in
+ list_process_state|user_generic_thread_brand|fs_exec|kernel_process_fork|kernel_process_free|kernel_process_exit|kernel_arch_kthread_create|list_statedump_end|list_vm_map)
+ CHANNEL=processes
+ ;;
+ list_interrupt|statedump_idt_table|statedump_sys_call_table)
+ CHANNEL=interrupts
+ ;;
+ list_network_ipv4_interface|list_network_ip_interface)
+ CHANNEL=network
+ ;;
+ kernel_module_load|kernel_module_free)
+ CHANNEL=modules
+ ;;
+ *)
+ CHANNEL=
+ ;;
+ esac
+
+ echo "connect $a default dynamic $CHANNEL" > /proc/ltt
+done
+
+
+# Connect the interesting high-speed markers to the marker tap.
+# Markers starting with "tap_" are considered high-speed.
+echo Connecting high-rate markers to tap
+MARKERS=`cat /proc/ltt | grep ^tap_`
+
+#Uncomment the following to also record lockdep events.
+#MARKERS=`cat /proc/ltt | grep -e ^tap_ -e ^lockdep`
+
+for a in $MARKERS; do
+ echo Connecting $a
+
+ #redirect markers carrying state information to dedicated channels
+ case $a in
+ *)
+ CHANNEL=
+ ;;
+ esac
+
+ echo "connect $a ltt_tap_marker dynamic $CHANNEL" > /proc/ltt
+done
--- /dev/null
+#excluding core markers (already connected)
+#excluding locking markers (high traffic)
+
+echo Connecting all userspace markers of _CURRENTLY RUNNING_ processes only !
+echo All the markers listed here will also automatically be enabled if
+echo present in a newly created process.
+
+for a in /proc/[0-9]*; do
+ for marker in `cat $a/markers | awk '{print $2}'`; do
+ echo Connecting marker $a:$marker
+ case $marker in
+ *)
+ CHANNEL=
+ ;;
+ esac
+ echo "connect $marker default dynamic $CHANNEL" > /proc/ltt
+ done
+done
--- /dev/null
+# This script will enable the system-wide tap on the given list of events passed
+# as parameter, and stop the tap at each other "normal rate" events.
+
+#excluding core markers (already connected)
+#excluding locking markers (high traffic)
+
+echo Connecting function markers
+
+# interesting period starts with the list of events passed as parameter.
+START_FTRACE=$*
+
+# interesting period may stop with one specific event, but also try to keep the
+# other START_FTRACE events triggers to the lowest possible overhead by stopping
+# function trace at every other events.
+# Do _not_ disable function tracing in ftrace_entry event unless you really only
+# want the first function entry...
+STOP_FTRACE=`cat /proc/ltt|grep -v %k|awk '{print $2}'|sort -u|grep -v ^core_|grep -v ^locking_|grep -v ^lockdep|grep -v ftrace_entry|grep -v ^tap_`
+
+for a in $START_FTRACE; do
+ STOP_FTRACE=`echo $STOP_FTRACE|sed 's/$a//'`
+done
+
+
+for a in $STOP_FTRACE; do
+ echo Connecting stop $a
+ echo "connect $a ftrace_system_stop" > /proc/ltt
+done
+
+for a in $START_FTRACE; do
+ echo Connecting start $a
+ echo "connect $a ftrace_system_start" > /proc/ltt
+done
+
+
--- /dev/null
+#excluding locking
+#excluding core markers, not connected to default.
+echo Disconnecting all markers
+MARKERS=`cat /proc/ltt|grep -v %k|awk '{print $2}'|sort -u|grep -v ^core_|grep -v ^locking_|grep -v ^lockdep_|grep -v ^lockdep|grep -v ^tap_`
+for a in $MARKERS; do echo Disconnecting $a; echo "disconnect $a" > /proc/ltt; done
+
+
+# Markers starting with "tap_" are considered high-speed.
+echo Disconnecting high-rate markers from tap
+MARKERS=`cat /proc/ltt | grep ^tap_`
+
+#Uncomment the following to also stop recording lockdep events.
+#MARKERS=`cat /proc/ltt | grep -e ^tap_ -e ^lockdep`
+
+for a in $MARKERS; do
+ echo Disconnecting $a
+
+ echo "disconnect $a ltt_tap_marker" > /proc/ltt
+done
--- /dev/null
+#excluding core markers (already connected)
+#excluding locking markers (high traffic)
+
+echo Disconnecting all userspace markers of _RUNNING PROCESSES_ only !
+
+for a in /proc/[0-9]*; do
+ for marker in `cat $a/markers | awk '{print $2}'`; do
+ echo Disonnecting marker $a:$marker
+ case $marker in
+ *)
+ CHANNEL=
+ ;;
+ esac
+ echo "disconnect $marker default dynamic $CHANNEL" > /proc/ltt
+ done
+done
--- /dev/null
+# This script will disable the system-wide tap on the given list of events
+# passed as parameter, and stop the tap at each other "normal rate" events.
+
+#excluding core markers (already connected)
+#excluding locking markers (high traffic)
+
+echo Disconnecting function markers
+
+# interesting period starts with the list of events passed as parameter.
+START_FTRACE=$*
+
+# interesting period may stop with one specific event, but also try to keep the
+# other START_FTRACE events triggers to the lowest possible overhead by stopping
+# function trace at every other events.
+# Do _not_ disable function tracing in ftrace_entry event unless you really only
+# want the first function entry...
+STOP_FTRACE=`cat /proc/ltt|grep -v %k|awk '{print $2}'|sort -u|grep -v ^core_|grep -v ^locking_|grep -v ^lockdep|grep -v ftrace_entry|grep -v ^tap_`
+
+for a in $START_FTRACE; do
+ STOP_FTRACE=`echo $STOP_FTRACE|sed 's/$a//'`
+done
+
+for a in $START_FTRACE; do
+ echo Disconnecting start $a
+ echo "disconnect $a ftrace_system_start" > /proc/ltt
+done
+
+for a in $STOP_FTRACE; do
+ echo Disconnecting stop $a
+ echo "disconnect $a ftrace_system_stop" > /proc/ltt
+done
+
+
--- /dev/null
+/* lttctl
+ *
+ * Linux Trace Toolkit Control
+ *
+ * Small program that controls LTT through libltt.
+ *
+ * Copyright 2005 -
+ * Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <liblttctl/lttctl.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <signal.h>
+#include <dirent.h>
+#include <string.h>
+#include <sys/stat.h>
+
+/* Buffer for file copy : 4k seems optimal. */
+#define BUF_SIZE 4096
+
+enum trace_ctl_op {
+ CTL_OP_CREATE_START,
+ CTL_OP_CREATE,
+ CTL_OP_DESTROY,
+ CTL_OP_STOP_DESTROY,
+ CTL_OP_START,
+ CTL_OP_STOP,
+ CTL_OP_DAEMON,
+ CTL_OP_DAEMON_HYBRID_FINISH,
+ CTL_OP_NONE
+};
+
+static char *trace_name = NULL;
+static char *trace_type = "relay";
+static char *mode_name = NULL;
+static unsigned subbuf_size_low = 0;
+static unsigned n_subbufs_low = 0;
+static unsigned subbuf_size_med = 0;
+static unsigned n_subbufs_med = 0;
+static unsigned subbuf_size_high = 0;
+static unsigned n_subbufs_high = 0;
+static unsigned append_trace = 0;
+static enum trace_mode mode = LTT_TRACE_NORMAL;
+static enum trace_ctl_op op = CTL_OP_NONE;
+static char *channel_root = NULL;
+static char *trace_root = NULL;
+static char *num_threads = "1";
+
+/* Args :
+ *
+ */
+void show_arguments(void)
+{
+ printf("Please use the following arguments :\n");
+ printf("\n");
+ printf("-n name Name of the trace.\n");
+ printf("-b Create trace channels and start tracing (no daemon).\n");
+ printf("-c Create trace channels.\n");
+ printf("-m mode Normal, flight recorder or hybrid mode.\n");
+ printf(" Mode values : normal (default), flight or hybrid.\n");
+ printf("-r Destroy trace channels.\n");
+ printf("-R Stop tracing and destroy trace channels.\n");
+ printf("-s Start tracing.\n");
+ //printf(" Note : will automatically create a normal trace if "
+ // "none exists.\n");
+ printf("-q Stop tracing.\n");
+ printf("-d Create trace, spawn a lttd daemon, start tracing.\n");
+ printf(" (optionally, you can set LTT_DAEMON\n");
+ printf(" env. var.)\n");
+ printf("-f Stop tracing, dump flight recorder trace, destroy channels\n");
+ printf(" (for hybrid traces)\n");
+ printf("-t Trace root path. (ex. /root/traces/example_trace)\n");
+ printf("-T Type of trace (ex. relay)\n");
+ printf("-l LTT channels root path. (ex. /mnt/debugfs/ltt)\n");
+ printf("-Z Size of the low data rate subbuffers (will be rounded to next page size)\n");
+ printf("-X Number of low data rate subbuffers\n");
+ printf("-V Size of the medium data rate subbuffers (will be rounded to next page size)\n");
+ printf("-B Number of medium data rate subbuffers\n");
+ printf("-z Size of the high data rate subbuffers (will be rounded to next page size)\n");
+ printf("-x Number of high data rate subbuffers\n");
+ printf("-a Append to trace\n");
+ printf("-N Number of lttd threads\n");
+ printf("\n");
+}
+
+
+/* parse_arguments
+ *
+ * Parses the command line arguments.
+ *
+ * Returns -1 if the arguments were correct, but doesn't ask for program
+ * continuation. Returns EINVAL if the arguments are incorrect, or 0 if OK.
+ */
+int parse_arguments(int argc, char **argv)
+{
+ int ret = 0;
+ int argn = 1;
+
+ if(argc == 2) {
+ if(strcmp(argv[1], "-h") == 0) {
+ return -1;
+ }
+ }
+
+ while(argn < argc) {
+
+ switch(argv[argn][0]) {
+ case '-':
+ switch(argv[argn][1]) {
+ case 'n':
+ if(argn+1 < argc) {
+ trace_name = argv[argn+1];
+ argn++;
+ } else {
+ printf("Specify a trace name after -n.\n");
+ printf("\n");
+ ret = EINVAL;
+ }
+
+ break;
+ case 'b':
+ op = CTL_OP_CREATE_START;
+ break;
+ case 'c':
+ op = CTL_OP_CREATE;
+ break;
+ case 'm':
+ if(argn+1 < argc) {
+ mode_name = argv[argn+1];
+ argn++;
+ if(strcmp(mode_name, "normal") == 0)
+ mode = LTT_TRACE_NORMAL;
+ else if(strcmp(mode_name, "flight") == 0)
+ mode = LTT_TRACE_FLIGHT;
+ else if(strcmp(mode_name, "hybrid") == 0)
+ mode = LTT_TRACE_HYBRID;
+ else {
+ printf("Invalid mode '%s'.\n", argv[argn]);
+ printf("\n");
+ ret = EINVAL;
+ }
+ } else {
+ printf("Specify a mode after -m.\n");
+ printf("\n");
+ ret = EINVAL;
+ }
+ break;
+ case 'r':
+ op = CTL_OP_DESTROY;
+ break;
+ case 'R':
+ op = CTL_OP_STOP_DESTROY;
+ break;
+ case 's':
+ op = CTL_OP_START;
+ break;
+ case 'q':
+ op = CTL_OP_STOP;
+ break;
+ case 'Z':
+ if(argn+1 < argc) {
+ subbuf_size_low = (unsigned)atoi(argv[argn+1]);
+ argn++;
+ } else {
+ printf("Specify a number of low traffic subbuffers after -Z.\n");
+ printf("\n");
+ ret = EINVAL;
+ }
+ break;
+ case 'X':
+ if(argn+1 < argc) {
+ n_subbufs_low = (unsigned)atoi(argv[argn+1]);
+ argn++;
+ } else {
+ printf("Specify a low traffic subbuffer size after -X.\n");
+ printf("\n");
+ ret = EINVAL;
+ }
+ break;
+ case 'V':
+ if(argn+1 < argc) {
+ subbuf_size_med = (unsigned)atoi(argv[argn+1]);
+ argn++;
+ } else {
+ printf("Specify a number of medium traffic subbuffers after -V.\n");
+ printf("\n");
+ ret = EINVAL;
+ }
+ break;
+ case 'B':
+ if(argn+1 < argc) {
+ n_subbufs_med = (unsigned)atoi(argv[argn+1]);
+ argn++;
+ } else {
+ printf("Specify a medium traffic subbuffer size after -B.\n");
+ printf("\n");
+ ret = EINVAL;
+ }
+ break;
+ case 'z':
+ if(argn+1 < argc) {
+ subbuf_size_high = (unsigned)atoi(argv[argn+1]);
+ argn++;
+ } else {
+ printf("Specify a number of high traffic subbuffers after -z.\n");
+ printf("\n");
+ ret = EINVAL;
+ }
+ break;
+ case 'x':
+ if(argn+1 < argc) {
+ n_subbufs_high = (unsigned)atoi(argv[argn+1]);
+ argn++;
+ } else {
+ printf("Specify a high traffic subbuffer size after -x.\n");
+ printf("\n");
+ ret = EINVAL;
+ }
+ break;
+ case 'd':
+ op = CTL_OP_DAEMON;
+ break;
+ case 'f':
+ op = CTL_OP_DAEMON_HYBRID_FINISH;
+ break;
+ case 't':
+ if(argn+1 < argc) {
+ trace_root = argv[argn+1];
+ argn++;
+ } else {
+ printf("Specify a trace root path after -t.\n");
+ printf("\n");
+ ret = EINVAL;
+ }
+ break;
+ case 'l':
+ if(argn+1 < argc) {
+ channel_root = argv[argn+1];
+ argn++;
+ } else {
+ printf("Specify a channel root path after -l.\n");
+ printf("\n");
+ ret = EINVAL;
+ }
+ break;
+ case 'a':
+ append_trace = 1;
+ break;
+ case 'N':
+ if(argn+1 < argc) {
+ num_threads = argv[argn+1];
+ argn++;
+ }
+ break;
+ case 'T':
+ if(argn+1 < argc) {
+ trace_type = argv[argn+1];
+ argn++;
+ } else {
+ printf("Specify a trace type after -T.\n");
+ printf("\n");
+ ret = EINVAL;
+ }
+ break;
+ default:
+ printf("Invalid argument '%s'.\n", argv[argn]);
+ printf("\n");
+ ret = EINVAL;
+ }
+ break;
+ default:
+ printf("Invalid argument '%s'.\n", argv[argn]);
+ printf("\n");
+ ret = EINVAL;
+ }
+ argn++;
+ }
+
+ if(trace_name == NULL) {
+ printf("Please specify a trace name.\n");
+ printf("\n");
+ ret = EINVAL;
+ }
+
+ if(op == CTL_OP_NONE) {
+ printf("Please specify an operation.\n");
+ printf("\n");
+ ret = EINVAL;
+ }
+
+ if(op == CTL_OP_DAEMON || op == CTL_OP_DAEMON_HYBRID_FINISH) {
+ if(trace_root == NULL) {
+ printf("Please specify -t trace_root_path with the -d option.\n");
+ printf("\n");
+ ret = EINVAL;
+ }
+ if(channel_root == NULL) {
+ printf("Please specify -l ltt_root_path with the -d option.\n");
+ printf("\n");
+ ret = EINVAL;
+ }
+ }
+
+ return ret;
+}
+
+void show_info(void)
+{
+ printf("Linux Trace Toolkit Trace Control " VERSION"\n");
+ printf("\n");
+ if(trace_name != NULL) {
+ printf("Controlling trace : %s\n", trace_name);
+ printf("\n");
+ }
+}
+
+int lttctl_daemon(struct lttctl_handle *handle, char *trace_name)
+{
+ char channel_path[PATH_MAX] = "";
+ pid_t pid;
+ int ret;
+ char *lttd_path = getenv("LTT_DAEMON");
+
+ if(lttd_path == NULL) lttd_path =
+ PACKAGE_BIN_DIR "/lttd";
+
+ strcat(channel_path, channel_root);
+ strcat(channel_path, "/");
+ strcat(channel_path, trace_name);
+
+
+ ret = lttctl_create_trace(handle, trace_name, mode, trace_type,
+ subbuf_size_low, n_subbufs_low,
+ subbuf_size_med, n_subbufs_med,
+ subbuf_size_high, n_subbufs_high);
+ if(ret != 0) goto create_error;
+
+ pid = fork();
+
+ if(pid > 0) {
+ int status = 0;
+ /* parent */
+
+ ret = waitpid(pid, &status, 0);
+ if(ret == -1) {
+ ret = errno;
+ perror("Error in waitpid");
+ goto start_error;
+ }
+
+ ret = 0;
+ if(WIFEXITED(status))
+ ret = WEXITSTATUS(status);
+ if(ret) goto start_error;
+
+ } else if(pid == 0) {
+ /* child */
+ int ret;
+ if(mode != LTT_TRACE_HYBRID) {
+ if(append_trace)
+ ret = execlp(lttd_path, lttd_path, "-t", trace_root, "-c",
+ channel_path, "-d", "-a", "-N", num_threads, NULL);
+ else
+ ret = execlp(lttd_path, lttd_path, "-t", trace_root, "-c",
+ channel_path, "-d", "-N", num_threads, NULL);
+ } else {
+ if(append_trace)
+ ret = execlp(lttd_path, lttd_path, "-t", trace_root, "-c",
+ channel_path, "-d", "-a", "-N", num_threads, "-n", NULL);
+ else
+ ret = execlp(lttd_path, lttd_path, "-t", trace_root, "-c",
+ channel_path, "-d", "-N", num_threads, "-n", NULL);
+ }
+ if(ret) {
+ ret = errno;
+ perror("Error in executing the lttd daemon");
+ exit(ret);
+ }
+ } else {
+ /* error */
+ perror("Error in forking for lttd daemon");
+ }
+
+ ret = lttctl_start(handle, trace_name);
+ if(ret != 0) goto start_error;
+
+ return 0;
+
+ /* error handling */
+start_error:
+ printf("Trace start error\n");
+ ret |= lttctl_destroy_trace(handle, trace_name);
+create_error:
+ return ret;
+}
+
+
+
+
+int lttctl_daemon_hybrid_finish(struct lttctl_handle *handle, char *trace_name)
+{
+ char channel_path[PATH_MAX] = "";
+ pid_t pid;
+ int ret;
+ char *lttd_path = getenv("LTT_DAEMON");
+
+ if(lttd_path == NULL) lttd_path =
+ PACKAGE_BIN_DIR "/lttd";
+
+ strcat(channel_path, channel_root);
+ strcat(channel_path, "/");
+ strcat(channel_path, trace_name);
+
+
+ ret = lttctl_stop(handle, trace_name);
+ if(ret != 0) goto stop_error;
+
+ pid = fork();
+
+ if(pid > 0) {
+ int status = 0;
+ /* parent */
+
+ ret = waitpid(pid, &status, 0);
+ if(ret == -1) {
+ ret = errno;
+ perror("Error in waitpid");
+ goto destroy_error;
+ }
+
+ ret = 0;
+ if(WIFEXITED(status))
+ ret = WEXITSTATUS(status);
+ if(ret) goto destroy_error;
+
+ } else if(pid == 0) {
+ /* child */
+ int ret;
+ if(append_trace)
+ ret = execlp(lttd_path, lttd_path, "-t", trace_root, "-c",
+ channel_path, "-d", "-a", "-N", num_threads, "-f", NULL);
+ else
+ ret = execlp(lttd_path, lttd_path, "-t", trace_root, "-c",
+ channel_path, "-d", "-N", num_threads, "-f", NULL);
+ if(ret) {
+ ret = errno;
+ perror("Error in executing the lttd daemon");
+ exit(ret);
+ }
+ } else {
+ /* error */
+ perror("Error in forking for lttd daemon");
+ }
+
+ ret = lttctl_destroy_trace(handle, trace_name);
+ if(ret != 0) goto destroy_error;
+
+ return 0;
+
+ /* error handling */
+destroy_error:
+ printf("Hybrid trace destroy error\n");
+stop_error:
+ return ret;
+}
+
+
+
+int main(int argc, char ** argv)
+{
+ int ret;
+ struct lttctl_handle *handle;
+
+ ret = parse_arguments(argc, argv);
+
+ if(ret != 0) show_arguments();
+ if(ret == EINVAL) return EINVAL;
+ if(ret == -1) return 0;
+
+ show_info();
+
+ handle = lttctl_create_handle();
+
+ if(handle == NULL) return -1;
+
+ switch(op) {
+ case CTL_OP_CREATE_START:
+ ret = lttctl_create_trace(handle, trace_name, mode, trace_type,
+ subbuf_size_low, n_subbufs_low,
+ subbuf_size_med, n_subbufs_med,
+ subbuf_size_high, n_subbufs_high);
+ if(!ret)
+ ret = lttctl_start(handle, trace_name);
+ break;
+ case CTL_OP_CREATE:
+ ret = lttctl_create_trace(handle, trace_name, mode, trace_type,
+ subbuf_size_low, n_subbufs_low,
+ subbuf_size_med, n_subbufs_med,
+ subbuf_size_high, n_subbufs_high);
+ break;
+ case CTL_OP_DESTROY:
+ ret = lttctl_destroy_trace(handle, trace_name);
+ break;
+ case CTL_OP_STOP_DESTROY:
+ ret = lttctl_stop(handle, trace_name);
+ if(!ret)
+ ret = lttctl_destroy_trace(handle, trace_name);
+ break;
+ case CTL_OP_START:
+ ret = lttctl_start(handle, trace_name);
+ break;
+ case CTL_OP_STOP:
+ ret = lttctl_stop(handle, trace_name);
+ break;
+ case CTL_OP_DAEMON:
+ ret = lttctl_daemon(handle, trace_name);
+ break;
+ case CTL_OP_DAEMON_HYBRID_FINISH:
+ ret = lttctl_daemon_hybrid_finish(handle, trace_name);
+ break;
+ case CTL_OP_NONE:
+ break;
+ }
+
+ ret |= lttctl_destroy_handle(handle);
+
+ return ret;
+}
--- /dev/null
+#!/bin/bash
+# Copyright (C) 2006 Eric Clément
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# purpose : automatic generation of traces with LTT in a network.
+# usage :
+#
+# you need SSH connection without password for all computers that you want
+# trace. You might put le name of those computers (uname -n) in a file
+# (liste.txt by default). LTT might be installed in the same way for those
+# computer.
+# You can customize your path. This script can also generate traffic TCP and
+# UDP. A UDP monitor is use to validate the result (this is the first computer
+# in the file (liste.txt)).
+#
+# usage: ./lttclt_distributed.sh time freq mode_generator {options}
+#
+# time (seconds) : duration a the tracing
+# freq (nb packet/second or nb packet/ms) : communication frequency when TCP
+# generator is used, 0 otherwise
+# mode_generator : 1 : traffic generator off
+# 2 : traffic generator TCP on (nb packet/second)
+# 3 : traffic generator TCP on (nb packet/ms)
+#
+# options (optional): 1 : enable the UDP monitor (1packet/second is generated
+# by all UDP client)
+#
+# you need : ssh, scp and zip
+
+TCP_SERVER=tcpserver
+TCP_CLIENT=tcpclient
+
+UDP_SERVER=udpserver
+UDP_CLIENT=udpclient
+
+PATH_TRACE=/root/trace-ltt/
+PATH_DEBUGFS=/debugfs/ltt/
+SET_LTT_FACILITIES="export LTT_FACILITIES=/home/ercle/NEW_GENERATION_LTTV/share/LinuxTraceToolkitViewer/facilities/"
+SET_LTT_DAEMON="export LTT_DAEMON=/home/ercle/NEW_GENERATION_LTTV/bin/lttd"
+
+START_DAEMON="/home/ercle/NEW_GENERATION_LTTV/bin/lttctl -d -n \
+trace1 -t $PATH_TRACE -l $PATH_DEBUGFS >/dev/null"
+
+STOP_DAEMON="/home/ercle/NEW_GENERATION_LTTV/bin/lttctl -n trace1 -q >/dev/null"
+REMOVE_DAEMON="/home/ercle/NEW_GENERATION_LTTV/bin/lttctl -n trace1 -r >/dev/null"
+REMOVE_TRACE="rm -rf $PATH_TRACE"
+
+E_FNEXIST=100
+
+FILE_LISTE=liste.txt
+TRACE_DAEMON=/tmp/daemon-
+
+if [ $# -lt 3 ]
+then
+ echo "usage: $0 time freq mode_generator {options}"
+ exit 1
+elif [ $# -gt 4 ]
+then
+ echo "usage: $0 time freq mode_generator {options}"
+ exit 1
+fi
+
+if [ -e $FILE_LISTE ]
+then
+
+ time=$1
+ freq=$2
+ mode_generator=$3
+ if [ $# -eq 4 ]
+ then
+ mode_monitor=$4
+ else
+ mode_monitor=0
+ fi
+
+#create script generator
+ FILE_OUT=daemon-
+
+ if [ $mode_generator -eq 3 ]
+ then
+ TCP_CLIENT=tcpclient_ms
+ fi
+
+ nb_node=0
+ for line in $( cat $FILE_LISTE );
+ do
+ let nb_node+=1
+
+ echo $REMOVE_TRACE > "$FILE_OUT$line.sh"
+ echo mkdir $PATH_TRACE >> "$FILE_OUT$line.sh"
+ echo $SET_LTT_FACILITIES >> "$FILE_OUT$line.sh"
+ echo $SET_LTT_DAEMON >> "$FILE_OUT$line.sh"
+ echo $START_DAEMON >> "$FILE_OUT$line.sh"
+
+ chmod +x "$FILE_OUT$line.sh"
+
+ if [ $mode_generator -ge 2 ] #if generator de trafic enable (2 or 3)
+ then
+ if [ $nb_node -eq 1 -a $mode_monitor -eq 1 ]
+ then
+ monitor=$line
+ echo "/tmp/$UDP_SERVER >/dev/null &" >> "$FILE_OUT$line.sh"
+ scp "$UDP_SERVER" $line:/tmp/
+
+ echo "sleep $time" >> "$FILE_OUT$line.sh"
+ echo "kill \`ps -A |grep $UDP_SERVER | awk '{ print \$1 }'\`" >> "$FILE_OUT$line.sh"
+ else
+ if [ $mode_monitor -eq 1 ]
+ then
+ echo "/tmp/$UDP_CLIENT $monitor $time 1 >/dev/null & " >> "$FILE_OUT$line.sh"
+ scp "$UDP_CLIENT" $line:/tmp/
+ fi
+
+ echo "/tmp/$TCP_SERVER >/dev/null &" >> "$FILE_OUT$line.sh"
+ scp "$TCP_SERVER" $line:/tmp/
+ compteur=0
+ for line2 in $( cat $FILE_LISTE );
+ do
+ let compteur+=1
+ if [ $compteur -gt $nb_node ]
+ then
+ echo "/tmp/$TCP_CLIENT $line2 $time $freq >/dev/null &" >> "$FILE_OUT$line.sh"
+ scp "$TCP_CLIENT" $line:/tmp/
+ fi
+ done
+
+ echo "sleep $time" >> "$FILE_OUT$line.sh"
+ echo "kill \`ps -A |grep $TCP_SERVER | awk '{ print \$1 }'\`" >> "$FILE_OUT$line.sh"
+ fi
+ fi
+
+ echo $STOP_DAEMON >> "$FILE_OUT$line.sh"
+ echo $REMOVE_DAEMON >> "$FILE_OUT$line.sh"
+
+ #script for get node information
+ ENDIAN=endian
+ echo 'FILE_OUT=`uname -n`.info' >> "$FILE_OUT$line.sh"
+ echo 'ENDIAN=endian' >> "$FILE_OUT$line.sh"
+ echo ' exec 6>&1' >> "$FILE_OUT$line.sh"
+ echo ' exec > /tmp/$FILE_OUT' >> "$FILE_OUT$line.sh"
+ echo ' echo `uname -n`' >> "$FILE_OUT$line.sh"
+ echo '' >> "$FILE_OUT$line.sh"
+ echo ' /tmp/$ENDIAN || ( echo >&6 && echo "** ERROR **: problem occur with /tmp/$ENDIAN" >&6 && echo >&6)' >> "$FILE_OUT$line.sh"
+ echo '' >> "$FILE_OUT$line.sh"
+ echo -e ' /sbin/ifconfig | grep addr: | awk \047{print $2}\047 | sed /127.0.0.1/d | sed s/addr:// | sed /^$/d #english' >> "$FILE_OUT$line.sh"
+ echo -e ' /sbin/ifconfig | grep adr: | awk \047{print $2}\047 | sed /127.0.0.1/d | sed s/adr:// | sed /^$/d #french' >> "$FILE_OUT$line.sh"
+ echo ' echo END' >> "$FILE_OUT$line.sh"
+ echo '' >> "$FILE_OUT$line.sh"
+ echo ' exec 1>&6 6>&-' >> "$FILE_OUT$line.sh"
+ echo '' >> "$FILE_OUT$line.sh"
+ echo ' echo "$FILE_OUT done"' >> "$FILE_OUT$line.sh"
+ echo '' >> "$FILE_OUT$line.sh"
+
+ #send files
+ if [ $mode_generator -ge 2 -a $nb_node -eq 1 -a $mode_monitor -eq 1 ]
+ then
+ echo mv /tmp/'`uname -n`'.info /tmp/'`uname -n`'.monitor >> "$FILE_OUT$line.sh"
+ echo scp /tmp/'`uname -n`'.monitor `uname -n`:`pwd`/ >> "$FILE_OUT$line.sh"
+ else
+ echo scp /tmp/'`uname -n`'.info `uname -n`:`pwd`/ >> "$FILE_OUT$line.sh"
+ fi
+
+ echo ' exit 0' >> "$FILE_OUT$line.sh"
+
+ scp "$FILE_OUT$line.sh" $line:/tmp/
+ scp "$ENDIAN" $line:/tmp/
+ rm "$FILE_OUT$line.sh"
+ done
+#end script generator
+
+#start traces !!
+ sleep 1
+
+ for line in $( cat $FILE_LISTE );
+ do
+ echo ssh -f "$line $TRACE_DAEMON$line.sh "
+ ssh -f $line "$TRACE_DAEMON$line.sh"
+ done
+
+else
+ echo "error: file $FILE_LISTE doesn't exist"
+ exit E_FNEXIST
+fi
+
+date
+
+sleep $time
+
+# is all daemon stop ?
+for line in $( cat $FILE_LISTE );
+ do
+
+ daemon_present="true"
+ wait_time=1
+ while [ $daemon_present == "true" ]
+ do
+ daemon_present="false"
+ (ssh $line ps -A |grep lttd) && daemon_present="true"
+ sleep $wait_time
+ let wait_time+=1
+ done
+ done
+
+#get all traces
+nb_computer=0
+zip_path=""
+for line in $( cat $FILE_LISTE );
+ do
+ mkdir `pwd`/$line 2>/dev/null
+ scp -q -r $line:$PATH_TRACE/ `pwd`/$line
+ zip_path="$zip_path $line"
+ let nb_computer+=1
+ done
+
+#get network informatioin
+FILE_TMP=ls.tmp
+FILE_OUT=network.trace
+
+exec 3> $FILE_TMP #open FILE_TMP (Write)
+
+ls *.monitor >&3 2>/dev/null
+
+#get the list of .info file to parse
+ls *.info >&3 || (echo EMPTY >&3)
+echo END >&3
+
+exec 3>&- #close FILE_TMP
+
+exec 3< $FILE_TMP #open FILE_TMP (Read)
+read line <&3
+if [ "$line" = "EMPTY" ]
+then
+ echo "NO .info file"
+ exec 3>&- #close FILE_TMP
+ rm -rf $FILE_TMP
+ exit 1
+fi
+
+exec 5> $FILE_OUT #open FILE_OUT (Write)
+
+echo -e "Nb IP\tName\t\endianness\tIP ..."
+echo -e "Nb IP\tName\tendianness\tIP ..." >&5
+
+while [ "$line" != "END" ]
+do
+ echo "++++++++++++++++++++"
+ echo "in file $line"
+
+ output=""
+ nb_ip=-2 #1st line => name, 2 line => endianness
+ exec 4< $line
+ read answer <&4
+
+ while [ "$answer" != "END" ]
+ do
+ nb_ip=`expr $nb_ip + 1`
+ output="$output\n$answer"
+ read answer <&4
+ done
+
+ echo -e "$nb_ip$output"
+ echo -e "$nb_ip$output" >&5
+ exec 4<&-
+ mv $line "$line.read"
+ read line <&3
+ echo "---------------------"
+done
+
+exec 3>&- #close FILE_TMP
+rm -rf $FILE_TMP
+echo END >&5
+exec 5<&- #close FILE_OUT
+
+#zip files
+ root=`pwd`
+ cd $root && echo $root
+ nomfic="trace__nb_computer"$nb_computer"__time"$time"__freq"$freq"__"`uname -n``date '+__%d%b__%H-%M-%S'`$options".zip"
+
+ zip -r $nomfic $zip_path *.info.read *.monitor.read *.trace>/dev/null
+ echo -e "zip done $zip_path\n$root/$nomfic"
+
+ exec 3<&-
+
+echo -e "\a$0 done!"
+exit 0
--- /dev/null
+# Empty TraceDaemon Makefile.am. Insert a real one here.
+
+LIBS += $(THREAD_LIBS)
+
+bin_PROGRAMS = lttd
+
+lttd_SOURCES = lttd.c
+
--- /dev/null
+/* lttd
+ *
+ * Linux Trace Toolkit Daemon
+ *
+ * This is a simple daemon that reads a few relay+debugfs channels and save
+ * them in a trace.
+ *
+ * CPU hot-plugging is supported using inotify.
+ *
+ * Copyright 2005 -
+ * Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#define _REENTRANT
+#define _GNU_SOURCE
+#include <features.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <stdlib.h>
+#include <dirent.h>
+#include <string.h>
+#include <fcntl.h>
+#include <sys/poll.h>
+#include <sys/mman.h>
+#include <signal.h>
+#include <pthread.h>
+#include <sys/syscall.h>
+#include <unistd.h>
+#include <asm/ioctls.h>
+
+#include <linux/version.h>
+
+/* Relayfs IOCTL */
+#include <asm/ioctl.h>
+#include <asm/types.h>
+
+/* Get the next sub buffer that can be read. */
+#define RELAY_GET_SUBBUF _IOR(0xF5, 0x00,__u32)
+/* Release the oldest reserved (by "get") sub buffer. */
+#define RELAY_PUT_SUBBUF _IOW(0xF5, 0x01,__u32)
+/* returns the number of sub buffers in the per cpu channel. */
+#define RELAY_GET_N_SUBBUFS _IOR(0xF5, 0x02,__u32)
+/* returns the size of the sub buffers. */
+#define RELAY_GET_SUBBUF_SIZE _IOR(0xF5, 0x03,__u32)
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,14)
+#include <linux/inotify.h>
+/* From the inotify-tools 2.6 package */
+static inline int inotify_init (void)
+{
+ return syscall (__NR_inotify_init);
+}
+
+static inline int inotify_add_watch (int fd, const char *name, __u32 mask)
+{
+ return syscall (__NR_inotify_add_watch, fd, name, mask);
+}
+
+static inline int inotify_rm_watch (int fd, __u32 wd)
+{
+ return syscall (__NR_inotify_rm_watch, fd, wd);
+}
+#define HAS_INOTIFY
+#else
+static inline int inotify_init (void)
+{
+ return -1;
+}
+
+static inline int inotify_add_watch (int fd, const char *name, __u32 mask)
+{
+ return 0;
+}
+
+static inline int inotify_rm_watch (int fd, __u32 wd)
+{
+ return 0;
+}
+#undef HAS_INOTIFY
+#endif
+
+enum {
+ GET_SUBBUF,
+ PUT_SUBBUF,
+ GET_N_BUBBUFS,
+ GET_SUBBUF_SIZE
+};
+
+struct fd_pair {
+ int channel;
+ int trace;
+ unsigned int n_subbufs;
+ unsigned int subbuf_size;
+ void *mmap;
+ pthread_mutex_t mutex;
+};
+
+struct channel_trace_fd {
+ struct fd_pair *pair;
+ int num_pairs;
+};
+
+struct inotify_watch {
+ int wd;
+ char path_channel[PATH_MAX];
+ char path_trace[PATH_MAX];
+};
+
+struct inotify_watch_array {
+ struct inotify_watch *elem;
+ int num;
+};
+
+
+
+struct channel_trace_fd fd_pairs = { NULL, 0 };
+int inotify_fd = -1;
+struct inotify_watch_array inotify_watch_array = { NULL, 0 };
+
+/* protects fd_pairs and inotify_watch_array */
+pthread_rwlock_t fd_pairs_lock = PTHREAD_RWLOCK_INITIALIZER;
+
+
+static char *trace_name = NULL;
+static char *channel_name = NULL;
+static int daemon_mode = 0;
+static int append_mode = 0;
+static unsigned long num_threads = 1;
+volatile static int quit_program = 0; /* For signal handler */
+static int dump_flight_only = 0;
+static int dump_normal_only = 0;
+
+/* Args :
+ *
+ * -t directory Directory name of the trace to write to. Will be created.
+ * -c directory Root directory of the debugfs trace channels.
+ * -d Run in background (daemon).
+ * -a Trace append mode.
+ * -s Send SIGUSR1 to parent when ready for IO.
+ */
+void show_arguments(void)
+{
+ printf("Please use the following arguments :\n");
+ printf("\n");
+ printf("-t directory Directory name of the trace to write to.\n"
+ " It will be created.\n");
+ printf("-c directory Root directory of the debugfs trace channels.\n");
+ printf("-d Run in background (daemon).\n");
+ printf("-a Append to an possibly existing trace.\n");
+ printf("-N Number of threads to start.\n");
+ printf("-f Dump only flight recorder channels.\n");
+ printf("-n Dump only normal channels.\n");
+ printf("\n");
+}
+
+
+/* parse_arguments
+ *
+ * Parses the command line arguments.
+ *
+ * Returns 1 if the arguments were correct, but doesn't ask for program
+ * continuation. Returns -1 if the arguments are incorrect, or 0 if OK.
+ */
+int parse_arguments(int argc, char **argv)
+{
+ int ret = 0;
+ int argn = 1;
+
+ if(argc == 2) {
+ if(strcmp(argv[1], "-h") == 0) {
+ return 1;
+ }
+ }
+
+ while(argn < argc) {
+
+ switch(argv[argn][0]) {
+ case '-':
+ switch(argv[argn][1]) {
+ case 't':
+ if(argn+1 < argc) {
+ trace_name = argv[argn+1];
+ argn++;
+ }
+ break;
+ case 'c':
+ if(argn+1 < argc) {
+ channel_name = argv[argn+1];
+ argn++;
+ }
+ break;
+ case 'd':
+ daemon_mode = 1;
+ break;
+ case 'a':
+ append_mode = 1;
+ break;
+ case 'N':
+ if(argn+1 < argc) {
+ num_threads = strtoul(argv[argn+1], NULL, 0);
+ argn++;
+ }
+ break;
+ case 'f':
+ dump_flight_only = 1;
+ break;
+ case 'n':
+ dump_normal_only = 1;
+ break;
+ default:
+ printf("Invalid argument '%s'.\n", argv[argn]);
+ printf("\n");
+ ret = -1;
+ }
+ break;
+ default:
+ printf("Invalid argument '%s'.\n", argv[argn]);
+ printf("\n");
+ ret = -1;
+ }
+ argn++;
+ }
+
+ if(trace_name == NULL) {
+ printf("Please specify a trace name.\n");
+ printf("\n");
+ ret = -1;
+ }
+
+ if(channel_name == NULL) {
+ printf("Please specify a channel name.\n");
+ printf("\n");
+ ret = -1;
+ }
+
+ return ret;
+}
+
+void show_info(void)
+{
+ printf("Linux Trace Toolkit Trace Daemon " VERSION "\n");
+ printf("\n");
+ printf("Reading from debugfs directory : %s\n", channel_name);
+ printf("Writing to trace directory : %s\n", trace_name);
+ printf("\n");
+}
+
+
+/* signal handling */
+
+static void handler(int signo)
+{
+ printf("Signal %d received : exiting cleanly\n", signo);
+ quit_program = 1;
+}
+
+
+int open_buffer_file(char *filename, char *path_channel, char *path_trace,
+ struct channel_trace_fd *fd_pairs)
+{
+ int open_ret = 0;
+ int ret = 0;
+ struct stat stat_buf;
+
+ if(strncmp(filename, "flight-", sizeof("flight-")-1) != 0) {
+ if(dump_flight_only) {
+ printf("Skipping normal channel %s\n", path_channel);
+ return 0;
+ }
+ } else {
+ if(dump_normal_only) {
+ printf("Skipping flight channel %s\n", path_channel);
+ return 0;
+ }
+ }
+ printf("Opening file.\n");
+
+ fd_pairs->pair = realloc(fd_pairs->pair,
+ ++fd_pairs->num_pairs * sizeof(struct fd_pair));
+
+ /* Open the channel in read mode */
+ fd_pairs->pair[fd_pairs->num_pairs-1].channel =
+ open(path_channel, O_RDONLY | O_NONBLOCK);
+ if(fd_pairs->pair[fd_pairs->num_pairs-1].channel == -1) {
+ perror(path_channel);
+ fd_pairs->num_pairs--;
+ return 0; /* continue */
+ }
+ /* Open the trace in write mode, only append if append_mode */
+ ret = stat(path_trace, &stat_buf);
+ if(ret == 0) {
+ if(append_mode) {
+ printf("Appending to file %s as requested\n", path_trace);
+
+ fd_pairs->pair[fd_pairs->num_pairs-1].trace =
+ open(path_trace, O_WRONLY|O_APPEND,
+ S_IRWXU|S_IRWXG|S_IRWXO);
+
+ if(fd_pairs->pair[fd_pairs->num_pairs-1].trace == -1) {
+ perror(path_trace);
+ }
+ } else {
+ printf("File %s exists, cannot open. Try append mode.\n", path_trace);
+ open_ret = -1;
+ goto end;
+ }
+ } else {
+ if(errno == ENOENT) {
+ fd_pairs->pair[fd_pairs->num_pairs-1].trace =
+ open(path_trace, O_WRONLY|O_CREAT|O_EXCL,
+ S_IRWXU|S_IRWXG|S_IRWXO);
+ if(fd_pairs->pair[fd_pairs->num_pairs-1].trace == -1) {
+ perror(path_trace);
+ }
+ }
+ }
+end:
+ return open_ret;
+}
+
+int open_channel_trace_pairs(char *subchannel_name, char *subtrace_name,
+ struct channel_trace_fd *fd_pairs, int *inotify_fd,
+ struct inotify_watch_array *iwatch_array)
+{
+ DIR *channel_dir = opendir(subchannel_name);
+ struct dirent *entry;
+ struct stat stat_buf;
+ int ret;
+ char path_channel[PATH_MAX];
+ int path_channel_len;
+ char *path_channel_ptr;
+ char path_trace[PATH_MAX];
+ int path_trace_len;
+ char *path_trace_ptr;
+ int open_ret = 0;
+
+ if(channel_dir == NULL) {
+ perror(subchannel_name);
+ open_ret = ENOENT;
+ goto end;
+ }
+
+ printf("Creating trace subdirectory %s\n", subtrace_name);
+ ret = mkdir(subtrace_name, S_IRWXU|S_IRWXG|S_IRWXO);
+ if(ret == -1) {
+ if(errno != EEXIST) {
+ perror(subtrace_name);
+ open_ret = -1;
+ goto end;
+ }
+ }
+
+ strncpy(path_channel, subchannel_name, PATH_MAX-1);
+ path_channel_len = strlen(path_channel);
+ path_channel[path_channel_len] = '/';
+ path_channel_len++;
+ path_channel_ptr = path_channel + path_channel_len;
+
+ strncpy(path_trace, subtrace_name, PATH_MAX-1);
+ path_trace_len = strlen(path_trace);
+ path_trace[path_trace_len] = '/';
+ path_trace_len++;
+ path_trace_ptr = path_trace + path_trace_len;
+
+#ifdef HAS_INOTIFY
+ iwatch_array->elem = realloc(iwatch_array->elem,
+ ++iwatch_array->num * sizeof(struct inotify_watch));
+
+ printf("Adding inotify for channel %s\n", path_channel);
+ iwatch_array->elem[iwatch_array->num-1].wd = inotify_add_watch(*inotify_fd, path_channel, IN_CREATE);
+ strcpy(iwatch_array->elem[iwatch_array->num-1].path_channel, path_channel);
+ strcpy(iwatch_array->elem[iwatch_array->num-1].path_trace, path_trace);
+ printf("Added inotify for channel %s, wd %u\n", iwatch_array->elem[iwatch_array->num-1].path_channel,
+ iwatch_array->elem[iwatch_array->num-1].wd);
+#endif
+
+ while((entry = readdir(channel_dir)) != NULL) {
+
+ if(entry->d_name[0] == '.') continue;
+
+ strncpy(path_channel_ptr, entry->d_name, PATH_MAX - path_channel_len);
+ strncpy(path_trace_ptr, entry->d_name, PATH_MAX - path_trace_len);
+
+ ret = stat(path_channel, &stat_buf);
+ if(ret == -1) {
+ perror(path_channel);
+ continue;
+ }
+
+ printf("Channel file : %s\n", path_channel);
+
+ if(S_ISDIR(stat_buf.st_mode)) {
+
+ printf("Entering channel subdirectory...\n");
+ ret = open_channel_trace_pairs(path_channel, path_trace, fd_pairs,
+ inotify_fd, iwatch_array);
+ if(ret < 0) continue;
+ } else if(S_ISREG(stat_buf.st_mode)) {
+ open_ret = open_buffer_file(entry->d_name, path_channel, path_trace,
+ fd_pairs);
+ if(open_ret)
+ goto end;
+ }
+ }
+
+end:
+ closedir(channel_dir);
+
+ return open_ret;
+}
+
+
+int read_subbuffer(struct fd_pair *pair)
+{
+ unsigned int consumed_old;
+ int err, ret=0;
+
+
+ err = ioctl(pair->channel, RELAY_GET_SUBBUF,
+ &consumed_old);
+ printf("cookie : %u\n", consumed_old);
+ if(err != 0) {
+ ret = errno;
+ perror("Reserving sub buffer failed (everything is normal, it is due to concurrency)");
+ goto get_error;
+ }
+
+ err = TEMP_FAILURE_RETRY(write(pair->trace,
+ pair->mmap
+ + (consumed_old & ((pair->n_subbufs * pair->subbuf_size)-1)),
+ pair->subbuf_size));
+
+ if(err < 0) {
+ ret = errno;
+ perror("Error in writing to file");
+ goto write_error;
+ }
+#if 0
+ err = fsync(pair->trace);
+ if(err < 0) {
+ ret = errno;
+ perror("Error in writing to file");
+ goto write_error;
+ }
+#endif //0
+write_error:
+ err = ioctl(pair->channel, RELAY_PUT_SUBBUF, &consumed_old);
+ if(err != 0) {
+ ret = errno;
+ if(errno == EFAULT) {
+ perror("Error in unreserving sub buffer\n");
+ } else if(errno == EIO) {
+ perror("Reader has been pushed by the writer, last subbuffer corrupted.");
+ /* FIXME : we may delete the last written buffer if we wish. */
+ }
+ goto get_error;
+ }
+
+get_error:
+ return ret;
+}
+
+
+
+int map_channels(struct channel_trace_fd *fd_pairs,
+ int idx_begin, int idx_end)
+{
+ int i,j;
+ int ret=0;
+
+ if(fd_pairs->num_pairs <= 0) {
+ printf("No channel to read\n");
+ goto end;
+ }
+
+ /* Get the subbuf sizes and number */
+
+ for(i=idx_begin;i<idx_end;i++) {
+ struct fd_pair *pair = &fd_pairs->pair[i];
+
+ ret = ioctl(pair->channel, RELAY_GET_N_SUBBUFS,
+ &pair->n_subbufs);
+ if(ret != 0) {
+ perror("Error in getting the number of subbuffers");
+ goto end;
+ }
+ ret = ioctl(pair->channel, RELAY_GET_SUBBUF_SIZE,
+ &pair->subbuf_size);
+ if(ret != 0) {
+ perror("Error in getting the size of the subbuffers");
+ goto end;
+ }
+ ret = pthread_mutex_init(&pair->mutex, NULL); /* Fast mutex */
+ if(ret != 0) {
+ perror("Error in mutex init");
+ goto end;
+ }
+ }
+
+ /* Mmap each FD */
+ for(i=idx_begin;i<idx_end;i++) {
+ struct fd_pair *pair = &fd_pairs->pair[i];
+
+ pair->mmap = mmap(0, pair->subbuf_size * pair->n_subbufs, PROT_READ,
+ MAP_SHARED, pair->channel, 0);
+ if(pair->mmap == MAP_FAILED) {
+ perror("Mmap error");
+ goto munmap;
+ }
+ }
+
+ goto end; /* success */
+
+ /* Error handling */
+ /* munmap only the successfully mmapped indexes */
+munmap:
+ /* Munmap each FD */
+ for(j=idx_begin;j<i;j++) {
+ struct fd_pair *pair = &fd_pairs->pair[j];
+ int err_ret;
+
+ err_ret = munmap(pair->mmap, pair->subbuf_size * pair->n_subbufs);
+ if(err_ret != 0) {
+ perror("Error in munmap");
+ }
+ ret |= err_ret;
+ }
+
+end:
+ return ret;
+
+
+}
+
+
+int unmap_channels(struct channel_trace_fd *fd_pairs)
+{
+ int j;
+ int ret=0;
+
+ /* Munmap each FD */
+ for(j=0;j<fd_pairs->num_pairs;j++) {
+ struct fd_pair *pair = &fd_pairs->pair[j];
+ int err_ret;
+
+ err_ret = munmap(pair->mmap, pair->subbuf_size * pair->n_subbufs);
+ if(err_ret != 0) {
+ perror("Error in munmap");
+ }
+ ret |= err_ret;
+ err_ret = pthread_mutex_destroy(&pair->mutex);
+ if(err_ret != 0) {
+ perror("Error in mutex destroy");
+ }
+ ret |= err_ret;
+ }
+
+ return ret;
+}
+
+#ifdef HAS_INOTIFY
+/* Inotify event arrived.
+ *
+ * Only support add file for now.
+ */
+
+int read_inotify(int inotify_fd,
+ struct channel_trace_fd *fd_pairs,
+ struct inotify_watch_array *iwatch_array)
+{
+ char buf[sizeof(struct inotify_event) + PATH_MAX];
+ char path_channel[PATH_MAX];
+ char path_trace[PATH_MAX];
+ ssize_t len;
+ struct inotify_event *ievent;
+ size_t offset;
+ unsigned int i;
+ int ret;
+ int old_num;
+
+ offset = 0;
+ len = read(inotify_fd, buf, sizeof(struct inotify_event) + PATH_MAX);
+ if(len < 0) {
+
+ if(errno == EAGAIN)
+ return 0; /* another thread got the data before us */
+
+ printf("Error in read from inotify FD %s.\n", strerror(len));
+ return -1;
+ }
+ while(offset < len) {
+ ievent = (struct inotify_event *)&(buf[offset]);
+ for(i=0; i<iwatch_array->num; i++) {
+ if(iwatch_array->elem[i].wd == ievent->wd &&
+ ievent->mask == IN_CREATE) {
+ printf("inotify wd %u event mask : %u for %s%s\n",
+ ievent->wd, ievent->mask,
+ iwatch_array->elem[i].path_channel, ievent->name);
+ old_num = fd_pairs->num_pairs;
+ strcpy(path_channel, iwatch_array->elem[i].path_channel);
+ strcat(path_channel, ievent->name);
+ strcpy(path_trace, iwatch_array->elem[i].path_trace);
+ strcat(path_trace, ievent->name);
+ if(ret = open_buffer_file(ievent->name, path_channel,
+ path_trace, fd_pairs)) {
+ printf("Error opening buffer file\n");
+ return -1;
+ }
+ if(ret = map_channels(fd_pairs, old_num, fd_pairs->num_pairs)) {
+ printf("Error mapping channel\n");
+ return -1;
+ }
+
+ }
+ }
+ offset += sizeof(*ievent) + ievent->len;
+ }
+}
+#endif //HAS_INOTIFY
+
+/* read_channels
+ *
+ * Thread worker.
+ *
+ * Read the debugfs channels and write them in the paired tracefiles.
+ *
+ * @fd_pairs : paired channels and trace files.
+ *
+ * returns 0 on success, -1 on error.
+ *
+ * Note that the high priority polled channels are consumed first. We then poll
+ * again to see if these channels are still in priority. Only when no
+ * high priority channel is left, we start reading low priority channels.
+ *
+ * Note that a channel is considered high priority when the buffer is almost
+ * full.
+ */
+
+int read_channels(unsigned long thread_num, struct channel_trace_fd *fd_pairs,
+ int inotify_fd, struct inotify_watch_array *iwatch_array)
+{
+ struct pollfd *pollfd = NULL;
+ int num_pollfd;
+ int i,j;
+ int num_rdy, num_hup;
+ int high_prio;
+ int ret = 0;
+ int inotify_fds;
+ unsigned int old_num;
+
+#ifdef HAS_INOTIFY
+ inotify_fds = 1;
+#else
+ inotify_fds = 0;
+#endif
+
+ pthread_rwlock_rdlock(&fd_pairs_lock);
+
+ /* Start polling the FD. Keep one fd for inotify */
+ pollfd = malloc((inotify_fds + fd_pairs->num_pairs) * sizeof(struct pollfd));
+
+#ifdef HAS_INOTIFY
+ pollfd[0].fd = inotify_fd;
+ pollfd[0].events = POLLIN|POLLPRI;
+#endif
+
+ for(i=0;i<fd_pairs->num_pairs;i++) {
+ pollfd[inotify_fds+i].fd = fd_pairs->pair[i].channel;
+ pollfd[inotify_fds+i].events = POLLIN|POLLPRI;
+ }
+ num_pollfd = inotify_fds + fd_pairs->num_pairs;
+
+
+ pthread_rwlock_unlock(&fd_pairs_lock);
+
+ while(1) {
+ high_prio = 0;
+ num_hup = 0;
+#ifdef DEBUG
+ printf("Press a key for next poll...\n");
+ char buf[1];
+ read(STDIN_FILENO, &buf, 1);
+ printf("Next poll (polling %d fd) :\n", num_pollfd);
+#endif //DEBUG
+
+ /* Have we received a signal ? */
+ if(quit_program) break;
+
+ num_rdy = poll(pollfd, num_pollfd, -1);
+
+ if(num_rdy == -1) {
+ perror("Poll error");
+ goto free_fd;
+ }
+
+ printf("Data received\n");
+#ifdef HAS_INOTIFY
+ switch(pollfd[0].revents) {
+ case POLLERR:
+ printf("Error returned in polling inotify fd %d.\n", pollfd[0].fd);
+ break;
+ case POLLHUP:
+ printf("Polling inotify fd %d tells it has hung up.\n", pollfd[0].fd);
+ break;
+ case POLLNVAL:
+ printf("Polling inotify fd %d tells fd is not open.\n", pollfd[0].fd);
+ break;
+ case POLLPRI:
+ case POLLIN:
+
+ printf("Polling inotify fd %d : data ready.\n", pollfd[0].fd);
+
+ pthread_rwlock_wrlock(&fd_pairs_lock);
+ read_inotify(inotify_fd, fd_pairs, iwatch_array);
+ pthread_rwlock_unlock(&fd_pairs_lock);
+
+ break;
+ }
+#endif
+
+ for(i=inotify_fds;i<num_pollfd;i++) {
+ switch(pollfd[i].revents) {
+ case POLLERR:
+ printf("Error returned in polling fd %d.\n", pollfd[i].fd);
+ num_hup++;
+ break;
+ case POLLHUP:
+ printf("Polling fd %d tells it has hung up.\n", pollfd[i].fd);
+ num_hup++;
+ break;
+ case POLLNVAL:
+ printf("Polling fd %d tells fd is not open.\n", pollfd[i].fd);
+ num_hup++;
+ break;
+ case POLLPRI:
+ pthread_rwlock_rdlock(&fd_pairs_lock);
+ if(pthread_mutex_trylock(&fd_pairs->pair[i-inotify_fds].mutex) == 0) {
+ printf("Urgent read on fd %d\n", pollfd[i].fd);
+ /* Take care of high priority channels first. */
+ high_prio = 1;
+ /* it's ok to have an unavailable subbuffer */
+ ret = read_subbuffer(&fd_pairs->pair[i-inotify_fds]);
+ if(ret == EAGAIN) ret = 0;
+
+ ret = pthread_mutex_unlock(&fd_pairs->pair[i-inotify_fds].mutex);
+ if(ret)
+ printf("Error in mutex unlock : %s\n", strerror(ret));
+ }
+ pthread_rwlock_unlock(&fd_pairs_lock);
+ break;
+ }
+ }
+ /* If every buffer FD has hung up, we end the read loop here */
+ if(num_hup == num_pollfd - inotify_fds) break;
+
+ if(!high_prio) {
+ for(i=inotify_fds;i<num_pollfd;i++) {
+ switch(pollfd[i].revents) {
+ case POLLIN:
+ pthread_rwlock_rdlock(&fd_pairs_lock);
+ if(pthread_mutex_trylock(&fd_pairs->pair[i-inotify_fds].mutex) == 0) {
+ /* Take care of low priority channels. */
+ printf("Normal read on fd %d\n", pollfd[i].fd);
+ /* it's ok to have an unavailable subbuffer */
+ ret = read_subbuffer(&fd_pairs->pair[i-inotify_fds]);
+ if(ret == EAGAIN) ret = 0;
+
+ ret = pthread_mutex_unlock(&fd_pairs->pair[i-inotify_fds].mutex);
+ if(ret)
+ printf("Error in mutex unlock : %s\n", strerror(ret));
+ }
+ pthread_rwlock_unlock(&fd_pairs_lock);
+ break;
+ }
+ }
+ }
+
+ /* Update pollfd array if an entry was added to fd_pairs */
+ pthread_rwlock_rdlock(&fd_pairs_lock);
+ if((inotify_fds + fd_pairs->num_pairs) != num_pollfd) {
+ pollfd = realloc(pollfd,
+ (inotify_fds + fd_pairs->num_pairs) * sizeof(struct pollfd));
+ for(i=num_pollfd-inotify_fds;i<fd_pairs->num_pairs;i++) {
+ pollfd[inotify_fds+i].fd = fd_pairs->pair[i].channel;
+ pollfd[inotify_fds+i].events = POLLIN|POLLPRI;
+ }
+ num_pollfd = fd_pairs->num_pairs + inotify_fds;
+ }
+ pthread_rwlock_unlock(&fd_pairs_lock);
+
+ /* NB: If the fd_pairs structure is updated by another thread from this
+ * point forward, the current thread will wait in the poll without
+ * monitoring the new channel. However, this thread will add the
+ * new channel on next poll (and this should not take too much time
+ * on a loaded system).
+ *
+ * This event is quite unlikely and can only occur if a CPU is
+ * hot-plugged while multple lttd threads are running.
+ */
+ }
+
+free_fd:
+ free(pollfd);
+
+end:
+ return ret;
+}
+
+
+void close_channel_trace_pairs(struct channel_trace_fd *fd_pairs, int inotify_fd,
+ struct inotify_watch_array *iwatch_array)
+{
+ int i;
+ int ret;
+
+ for(i=0;i<fd_pairs->num_pairs;i++) {
+ ret = close(fd_pairs->pair[i].channel);
+ if(ret == -1) perror("Close error on channel");
+ ret = close(fd_pairs->pair[i].trace);
+ if(ret == -1) perror("Close error on trace");
+ }
+ free(fd_pairs->pair);
+ free(iwatch_array->elem);
+}
+
+/* Thread worker */
+void * thread_main(void *arg)
+{
+ long ret;
+ unsigned long thread_num = (unsigned long)arg;
+
+ ret = read_channels(thread_num, &fd_pairs, inotify_fd, &inotify_watch_array);
+
+ return (void*)ret;
+}
+
+
+int channels_init()
+{
+ int ret = 0;
+
+ inotify_fd = inotify_init();
+ fcntl(inotify_fd, F_SETFL, O_NONBLOCK);
+
+ if(ret = open_channel_trace_pairs(channel_name, trace_name, &fd_pairs,
+ &inotify_fd, &inotify_watch_array))
+ goto close_channel;
+
+ if(ret = map_channels(&fd_pairs, 0, fd_pairs.num_pairs))
+ goto close_channel;
+
+ return 0;
+
+close_channel:
+ close_channel_trace_pairs(&fd_pairs, inotify_fd, &inotify_watch_array);
+ if(inotify_fd >= 0)
+ close(inotify_fd);
+ return ret;
+}
+
+
+int main(int argc, char ** argv)
+{
+ int ret = 0;
+ struct sigaction act;
+ pthread_t *tids;
+ unsigned long i;
+ void *tret;
+
+ ret = parse_arguments(argc, argv);
+
+ if(ret != 0) show_arguments();
+ if(ret < 0) return EINVAL;
+ if(ret > 0) return 0;
+
+ show_info();
+
+ if(daemon_mode) {
+ ret = daemon(0, 0);
+
+ if(ret == -1) {
+ perror("An error occured while daemonizing.");
+ exit(-1);
+ }
+ }
+
+ /* Connect the signal handlers */
+ act.sa_handler = handler;
+ act.sa_flags = 0;
+ sigemptyset(&(act.sa_mask));
+ sigaddset(&(act.sa_mask), SIGTERM);
+ sigaddset(&(act.sa_mask), SIGQUIT);
+ sigaddset(&(act.sa_mask), SIGINT);
+ sigaction(SIGTERM, &act, NULL);
+ sigaction(SIGQUIT, &act, NULL);
+ sigaction(SIGINT, &act, NULL);
+
+ if(ret = channels_init())
+ return ret;
+
+ tids = malloc(sizeof(pthread_t) * num_threads);
+ for(i=0; i<num_threads; i++) {
+
+ ret = pthread_create(&tids[i], NULL, thread_main, (void*)i);
+ if(ret) {
+ perror("Error creating thread");
+ break;
+ }
+ }
+
+ for(i=0; i<num_threads; i++) {
+ ret = pthread_join(tids[i], &tret);
+ if(ret) {
+ perror("Error joining thread");
+ break;
+ }
+ if((long)tret != 0) {
+ printf("Error %s occured in thread %u\n",
+ strerror((long)tret), i);
+ }
+ }
+
+ free(tids);
+
+ ret = unmap_channels(&fd_pairs);
+ close_channel_trace_pairs(&fd_pairs, inotify_fd, &inotify_watch_array);
+ if(inotify_fd >= 0)
+ close(inotify_fd);
+
+ return ret;
+}
--- /dev/null
+EXTRA_DIST = ltt-control.spec
--- /dev/null
+#
+# Spec file for ltt-control
+#
+Summary: LTT Control
+Name: ltt-control
+Version: 0.45
+Release: 11102007
+License: GPL
+Group: Applications/Development
+Source: http://ltt.polymtl.ca/lttng/ltt-control-%{version}-%{release}.tar.gz
+URL: http://ltt.polymtl.ca
+Packager: Martin Bisson <bissonm@discreet.com>
+BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
+
+# Where do we install the libs
+%ifarch x86_64 ppc64 ppc64iseries ia64
+%define libdir /usr/lib64
+%else
+%define libdir /usr/lib
+%endif
+
+
+%description
+
+ltt-control is the part of the Linux Trace Toolkit Next Generation
+that allows a machine to be traced. It holds the daemon with which
+the kernel will communicate and the application that starts and
+terminate tracing.
+
+%prep
+%setup -q -n ltt-control-%{version}-%{release}
+
+%build
+./configure --prefix=/usr --libdir=%{libdir}
+make
+
+%install
+rm -rf $RPM_BUILD_ROOT
+make DESTDIR=$RPM_BUILD_ROOT install
+
+%post
+echo "Running ldconfig (might take a while)"
+ldconfig
+
+%postun
+echo "Running ldconfig (might take a while)"
+ldconfig
+
+%files
+%{libdir}/liblttctl.so.0.0.0
+%{libdir}/liblttctl.so.0
+%{libdir}/liblttctl.so
+%{libdir}/liblttctl.la
+%{libdir}/liblttctl.a
+/usr/bin/lttctl
+/usr/bin/lttd
+/usr/include/liblttctl
+/usr/include/liblttctl/lttctl.h
projects / ltt-control.git / commitdiff
