--- /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,0.69-23072009)
+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 debugfs.
+ *
+ * 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 <string.h>
+#include <dirent.h>
+#include <limits.h>
+#include <fcntl.h>
+#include <stdlib.h>
+
+#define MAX_CHANNEL (256)
+
+static char debugfsmntdir[PATH_MAX];
+
+static int initdebugfsmntdir(void)
+{
+ return getdebugfsmntdir(debugfsmntdir);
+}
+
+/*
+ * This function must called posterior to initdebugfsmntdir(),
+ * because it need to use debugfsmntdir[] which is inited in initdebugfsmntdir()
+ */
+static int initmodule(void)
+{
+ char controldirname[PATH_MAX];
+ DIR *dir;
+ int tryload_done = 0;
+
+ sprintf(controldirname, "%s/ltt/control/", debugfsmntdir);
+
+check_again:
+ /*
+ * Check ltt control's debugfs dir
+ *
+ * We don't check is ltt-trace-control module exist, because it maybe
+ * compiled into kernel.
+ */
+ dir = opendir(controldirname);
+ if (dir) {
+ closedir(dir);
+ return 0;
+ }
+
+ if (!tryload_done) {
+ system("modprobe ltt-trace-control");
+ tryload_done = 1;
+ goto check_again;
+ }
+
+ return -ENOENT;
+}
+
+int lttctl_init(void)
+{
+ int ret;
+
+
+ ret = initdebugfsmntdir();
+ if (ret) {
+ fprintf(stderr, "Get debugfs mount point failed\n");
+ return ret;
+ }
+
+ ret = initmodule();
+ if (ret) {
+ fprintf(stderr, "Control module seems not work\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+int lttctl_destroy(void)
+{
+ return 0;
+}
+
+static int lttctl_sendop(const char *fname, const char *op)
+{
+ int fd;
+
+ if (!fname) {
+ fprintf(stderr, "%s: args invalid\n", __func__);
+ return 1;
+ }
+
+ fd = open(fname, O_WRONLY);
+ if (fd == -1) {
+ fprintf(stderr, "%s: open %s failed: %s\n", __func__, fname,
+ strerror(errno));
+ return errno;
+ }
+
+ if (write(fd, op, strlen(op)) == -1) {
+ int ret = errno;
+ fprintf(stderr, "%s: write %s to %s failed: %s\n", __func__, op,
+ fname, strerror(errno));
+ close(fd);
+ return ret;
+ }
+
+ close(fd);
+
+ return 0;
+}
+
+/*
+ * check is trace exist(check debugfsmntdir too)
+ * expect:
+ * 0: expect that trace not exist
+ * !0: expect that trace exist
+ *
+ * ret:
+ * 0: check pass
+ * -(EEXIST | ENOENT): check failed
+ * -ERRNO: error happened (no check)
+ */
+static int lttctl_check_trace(const char *name, int expect)
+{
+ char tracedirname[PATH_MAX];
+ DIR *dir;
+ int exist;
+
+ if (!name) {
+ fprintf(stderr, "%s: args invalid\n", __func__);
+ return -EINVAL;
+ }
+
+ if (!debugfsmntdir[0]) {
+ fprintf(stderr, "%s: debugfsmntdir not valid\n", __func__);
+ return -EINVAL;
+ }
+
+ sprintf(tracedirname, "%s/ltt/control/%s", debugfsmntdir, name);
+
+ dir = opendir(tracedirname);
+ if (dir) {
+ exist = 1;
+ } else {
+ if (errno != ENOENT) {
+ fprintf(stderr, "%s: %s\n", __func__, strerror(errno));
+ return -EINVAL;
+ }
+ exist = 0;
+ }
+
+ closedir(dir);
+
+ if (!expect != !exist) {
+ if (exist)
+ {
+ fprintf(stderr, "Trace %s already exist\n", name);
+ return -EEXIST;
+ }
+ else
+ {
+ fprintf(stderr, "Trace %s not exist\n", name);
+ return -ENOENT;
+ }
+
+ }
+
+ return 0;
+}
+
+/*
+ * get channel list of a trace
+ * don't include metadata channel when metadata is 0
+ *
+ * return number of channel on success
+ * return negative number on fail
+ * Caller must free channellist.
+ */
+static int lttctl_get_channellist(const char *tracename,
+ char ***channellist, int metadata)
+{
+ char tracedirname[PATH_MAX];
+ struct dirent *dirent;
+ DIR *dir;
+ char **list = NULL, **old_list;
+ int nr_chan = 0;
+
+ sprintf(tracedirname, "%s/ltt/control/%s/channel", debugfsmntdir,
+ tracename);
+
+ dir = opendir(tracedirname);
+ if (!dir) {
+ nr_chan = -ENOENT;
+ goto error;
+ }
+
+ for (;;) {
+ dirent = readdir(dir);
+ if (!dirent)
+ break;
+ if (!strcmp(dirent->d_name, ".")
+ || !strcmp(dirent->d_name, ".."))
+ continue;
+ if (!metadata && !strcmp(dirent->d_name, "metadata"))
+ continue;
+ old_list = list;
+ list = malloc(sizeof(char *) * ++nr_chan);
+ memcpy(list, old_list, sizeof(*list) * (nr_chan - 1));
+ free(old_list);
+ list[nr_chan - 1] = strdup(dirent->d_name);
+ }
+
+ closedir(dir);
+
+ *channellist = list;
+ return nr_chan;
+error:
+ free(list);
+ *channellist = NULL;
+ return nr_chan;
+}
+
+static void lttctl_free_channellist(char **channellist, int n_channel)
+{
+ int i = 0;
+ for(; i < n_channel; ++i)
+ free(channellist[i]);
+ free(channellist);
+}
+
+int lttctl_setup_trace(const char *name)
+{
+ int ret;
+ char ctlfname[PATH_MAX];
+
+ if (!name) {
+ fprintf(stderr, "%s: args invalid\n", __func__);
+ ret = -EINVAL;
+ goto arg_error;
+ }
+
+ ret = lttctl_check_trace(name, 0);
+ if (ret)
+ goto arg_error;
+
+ sprintf(ctlfname, "%s/ltt/setup_trace", debugfsmntdir);
+
+ ret = lttctl_sendop(ctlfname, name);
+ if (ret) {
+ fprintf(stderr, "Setup trace failed\n");
+ goto op_err;
+ }
+
+ return 0;
+
+op_err:
+arg_error:
+ return ret;
+}
+
+int lttctl_destroy_trace(const char *name)
+{
+ int ret;
+ char ctlfname[PATH_MAX];
+
+ if (!name) {
+ fprintf(stderr, "%s: args invalid\n", __func__);
+ ret = -EINVAL;
+ goto arg_error;
+ }
+
+ ret = lttctl_check_trace(name, 1);
+ if (ret)
+ goto arg_error;
+
+ sprintf(ctlfname, "%s/ltt/destroy_trace", debugfsmntdir);
+
+ ret = lttctl_sendop(ctlfname, name);
+ if (ret) {
+ fprintf(stderr, "Destroy trace failed\n");
+ goto op_err;
+ }
+
+ return 0;
+
+op_err:
+arg_error:
+ return ret;
+}
+
+int lttctl_alloc_trace(const char *name)
+{
+ int ret;
+ char ctlfname[PATH_MAX];
+
+ if (!name) {
+ fprintf(stderr, "%s: args invalid\n", __func__);
+ ret = -EINVAL;
+ goto arg_error;
+ }
+
+ ret = lttctl_check_trace(name, 1);
+ if (ret)
+ goto arg_error;
+
+ sprintf(ctlfname, "%s/ltt/control/%s/alloc", debugfsmntdir, name);
+
+ ret = lttctl_sendop(ctlfname, "1");
+ if (ret) {
+ fprintf(stderr, "Allocate trace failed\n");
+ goto op_err;
+ }
+
+ return 0;
+
+op_err:
+arg_error:
+ return ret;
+}
+
+int lttctl_start(const char *name)
+{
+ int ret;
+ char ctlfname[PATH_MAX];
+
+ if (!name) {
+ fprintf(stderr, "%s: args invalid\n", __func__);
+ ret = -EINVAL;
+ goto arg_error;
+ }
+
+ ret = lttctl_check_trace(name, 1);
+ if (ret)
+ goto arg_error;
+
+ sprintf(ctlfname, "%s/ltt/control/%s/enabled", debugfsmntdir, name);
+
+ ret = lttctl_sendop(ctlfname, "1");
+ if (ret) {
+ fprintf(stderr, "Start trace failed\n");
+ goto op_err;
+ }
+
+ return 0;
+
+op_err:
+arg_error:
+ return ret;
+}
+
+int lttctl_pause(const char *name)
+{
+ int ret;
+ char ctlfname[PATH_MAX];
+
+ if (!name) {
+ fprintf(stderr, "%s: args invalid\n", __func__);
+ ret = -EINVAL;
+ goto arg_error;
+ }
+
+ ret = lttctl_check_trace(name, 1);
+ if (ret)
+ goto arg_error;
+
+ sprintf(ctlfname, "%s/ltt/control/%s/enabled", debugfsmntdir, name);
+
+ ret = lttctl_sendop(ctlfname, "0");
+ if (ret) {
+ fprintf(stderr, "Pause trace failed\n");
+ goto op_err;
+ }
+
+ return 0;
+
+op_err:
+arg_error:
+ return ret;
+}
+
+int lttctl_set_trans(const char *name, const char *trans)
+{
+ int ret;
+ char ctlfname[PATH_MAX];
+
+ if (!name) {
+ fprintf(stderr, "%s: args invalid\n", __func__);
+ ret = -EINVAL;
+ goto arg_error;
+ }
+
+ ret = lttctl_check_trace(name, 1);
+ if (ret)
+ goto arg_error;
+
+ sprintf(ctlfname, "%s/ltt/control/%s/trans", debugfsmntdir, name);
+
+ ret = lttctl_sendop(ctlfname, trans);
+ if (ret) {
+ fprintf(stderr, "Set transport failed\n");
+ goto op_err;
+ }
+
+ return 0;
+
+op_err:
+arg_error:
+ return ret;
+}
+
+static int __lttctl_set_channel_enable(const char *name, const char *channel,
+ int enable)
+{
+ int ret;
+ char ctlfname[PATH_MAX];
+
+ sprintf(ctlfname, "%s/ltt/control/%s/channel/%s/enable", debugfsmntdir,
+ name, channel);
+
+ ret = lttctl_sendop(ctlfname, enable ? "1" : "0");
+ if (ret)
+ fprintf(stderr, "Set channel's enable mode failed\n");
+
+ return ret;
+}
+int lttctl_set_channel_enable(const char *name, const char *channel,
+ int enable)
+{
+ int ret;
+ char **channellist;
+ int n_channel;
+
+ if (!name || !channel) {
+ fprintf(stderr, "%s: args invalid\n", __func__);
+ ret = -EINVAL;
+ goto arg_error;
+ }
+
+ ret = lttctl_check_trace(name, 1);
+ if (ret)
+ goto arg_error;
+
+ if (strcmp(channel, "all")) {
+ ret = __lttctl_set_channel_enable(name, channel, enable);
+ if (ret)
+ goto op_err;
+ } else {
+ /* Don't allow set enable state for metadata channel */
+ n_channel = lttctl_get_channellist(name, &channellist, 0);
+ if (n_channel < 0) {
+ fprintf(stderr, "%s: lttctl_get_channellist failed\n",
+ __func__);
+ ret = -ENOENT;
+ goto op_err;
+ }
+
+ for (; n_channel > 0; n_channel--) {
+ ret = __lttctl_set_channel_enable(name,
+ channellist[n_channel - 1], enable);
+ if (ret)
+ goto op_err_clean;
+ }
+ lttctl_free_channellist(channellist, n_channel);
+ }
+
+ return 0;
+
+op_err_clean:
+ lttctl_free_channellist(channellist, n_channel);
+op_err:
+arg_error:
+ return ret;
+}
+
+static int __lttctl_set_channel_overwrite(const char *name, const char *channel,
+ int overwrite)
+{
+ int ret;
+ char ctlfname[PATH_MAX];
+
+ sprintf(ctlfname, "%s/ltt/control/%s/channel/%s/overwrite",
+ debugfsmntdir, name, channel);
+
+ ret = lttctl_sendop(ctlfname, overwrite ? "1" : "0");
+ if (ret)
+ fprintf(stderr, "Set channel's overwrite mode failed\n");
+
+ return ret;
+}
+int lttctl_set_channel_overwrite(const char *name, const char *channel,
+ int overwrite)
+{
+ int ret;
+ char **channellist;
+ int n_channel;
+
+ if (!name || !channel) {
+ fprintf(stderr, "%s: args invalid\n", __func__);
+ ret = -EINVAL;
+ goto arg_error;
+ }
+
+ ret = lttctl_check_trace(name, 1);
+ if (ret)
+ goto arg_error;
+
+ if (strcmp(channel, "all")) {
+ ret = __lttctl_set_channel_overwrite(name, channel, overwrite);
+ if (ret)
+ goto op_err;
+ } else {
+ /* Don't allow set overwrite for metadata channel */
+ n_channel = lttctl_get_channellist(name, &channellist, 0);
+ if (n_channel < 0) {
+ fprintf(stderr, "%s: lttctl_get_channellist failed\n",
+ __func__);
+ ret = -ENOENT;
+ goto op_err;
+ }
+
+ for (; n_channel > 0; n_channel--) {
+ ret = __lttctl_set_channel_overwrite(name,
+ channellist[n_channel - 1], overwrite);
+ if (ret)
+ goto op_err_clean;
+ }
+ lttctl_free_channellist(channellist, n_channel);
+ }
+
+ return 0;
+
+op_err_clean:
+ lttctl_free_channellist(channellist, n_channel);
+op_err:
+arg_error:
+ return ret;
+}
+
+static int __lttctl_set_channel_subbuf_num(const char *name,
+ const char *channel, unsigned subbuf_num)
+{
+ int ret;
+ char ctlfname[PATH_MAX];
+ char opstr[32];
+
+ sprintf(ctlfname, "%s/ltt/control/%s/channel/%s/subbuf_num",
+ debugfsmntdir, name, channel);
+
+ sprintf(opstr, "%u", subbuf_num);
+
+ ret = lttctl_sendop(ctlfname, opstr);
+ if (ret)
+ fprintf(stderr, "Set channel's subbuf number failed\n");
+
+ return ret;
+}
+int lttctl_set_channel_subbuf_num(const char *name, const char *channel,
+ unsigned subbuf_num)
+{
+ int ret;
+ char **channellist;
+ int n_channel;
+
+ if (!name || !channel) {
+ fprintf(stderr, "%s: args invalid\n", __func__);
+ ret = -EINVAL;
+ goto arg_error;
+ }
+
+ ret = lttctl_check_trace(name, 1);
+ if (ret)
+ goto arg_error;
+
+ if (strcmp(channel, "all")) {
+ ret = __lttctl_set_channel_subbuf_num(name, channel,
+ subbuf_num);
+ if (ret)
+ goto op_err;
+ } else {
+ /* allow set subbuf_num for metadata channel */
+ n_channel = lttctl_get_channellist(name, &channellist, 1);
+ if (n_channel < 0) {
+ fprintf(stderr, "%s: lttctl_get_channellist failed\n",
+ __func__);
+ ret = -ENOENT;
+ goto op_err;
+ }
+
+ for (; n_channel > 0; n_channel--) {
+ ret = __lttctl_set_channel_subbuf_num(name,
+ channellist[n_channel - 1], subbuf_num);
+ if (ret)
+ goto op_err_clean;
+ }
+ lttctl_free_channellist(channellist, n_channel);
+ }
+
+ return 0;
+
+op_err_clean:
+ lttctl_free_channellist(channellist, n_channel);
+op_err:
+arg_error:
+ return ret;
+}
+
+static int __lttctl_set_channel_subbuf_size(const char *name,
+ const char *channel, unsigned subbuf_size)
+{
+ int ret;
+ char ctlfname[PATH_MAX];
+ char opstr[32];
+
+ sprintf(ctlfname, "%s/ltt/control/%s/channel/%s/subbuf_size",
+ debugfsmntdir, name, channel);
+
+ sprintf(opstr, "%u", subbuf_size);
+
+ ret = lttctl_sendop(ctlfname, opstr);
+ if (ret)
+ fprintf(stderr, "Set channel's subbuf size failed\n");
+}
+int lttctl_set_channel_subbuf_size(const char *name, const char *channel,
+ unsigned subbuf_size)
+{
+ int ret;
+ char **channellist;
+ int n_channel;
+
+ if (!name || !channel) {
+ fprintf(stderr, "%s: args invalid\n", __func__);
+ ret = -EINVAL;
+ goto arg_error;
+ }
+
+ ret = lttctl_check_trace(name, 1);
+ if (ret)
+ goto arg_error;
+
+ if (strcmp(channel, "all")) {
+ ret = __lttctl_set_channel_subbuf_size(name, channel,
+ subbuf_size);
+ if (ret)
+ goto op_err;
+ } else {
+ /* allow set subbuf_size for metadata channel */
+ n_channel = lttctl_get_channellist(name, &channellist, 1);
+ if (n_channel < 0) {
+ fprintf(stderr, "%s: lttctl_get_channellist failed\n",
+ __func__);
+ ret = -ENOENT;
+ goto op_err;
+ }
+
+ for (; n_channel > 0; n_channel--) {
+ ret = __lttctl_set_channel_subbuf_size(name,
+ channellist[n_channel - 1], subbuf_size);
+ if (ret)
+ goto op_err_clean;
+ }
+ lttctl_free_channellist(channellist, n_channel);
+ }
+
+ return 0;
+
+op_err_clean:
+ lttctl_free_channellist(channellist, n_channel);
+op_err:
+arg_error:
+ return ret;
+}
+
+int getdebugfsmntdir(char *mntdir)
+{
+ char mnt_dir[PATH_MAX];
+ char mnt_type[PATH_MAX];
+ int trymount_done = 0;
+
+ FILE *fp = fopen("/proc/mounts", "r");
+ if (!fp)
+ return -EINVAL;
+
+find_again:
+ while (1) {
+ if (fscanf(fp, "%*s %s %s %*s %*s %*s", mnt_dir, mnt_type) <= 0)
+ break;
+
+ if (!strcmp(mnt_type, "debugfs")) {
+ strcpy(mntdir, mnt_dir);
+ return 0;
+ }
+ }
+
+ if (!trymount_done) {
+ mount("debugfs", "/sys/kernel/debug/", "debugfs", 0, NULL);
+ trymount_done = 1;
+ goto find_again;
+ }
+
+ return -ENOENT;
+}
--- /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.
+ *
+ */
+
+#ifndef _LIBLTT_H
+#define _LIBLTT_H
+
+int lttctl_init(void);
+int lttctl_destroy(void);
+int lttctl_setup_trace(const char *name);
+int lttctl_destroy_trace(const char *name);
+int lttctl_alloc_trace(const char *name);
+int lttctl_start(const char *name);
+int lttctl_pause(const char *name);
+int lttctl_set_trans(const char *name, const char *trans);
+int lttctl_set_channel_enable(const char *name, const char *channel,
+ int enable);
+int lttctl_set_channel_overwrite(const char *name, const char *channel,
+ int overwrite);
+int lttctl_set_channel_subbuf_num(const char *name, const char *channel,
+ unsigned subbuf_num);
+int lttctl_set_channel_subbuf_size(const char *name, const char *channel,
+ unsigned subbuf_size);
+
+/* Helper functions */
+int getdebugfsmntdir(char *mntdir);
+
+#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 = $(lttctl_DEPENDENCIES)
+
--- /dev/null
+#excluding core markers (already connected)
+#excluding locking markers (high traffic)
+
+DEBUGFSROOT=$(grep ^debugfs /proc/mounts | head -1 | awk '{print $2}')
+MARKERSROOT=${DEBUGFSROOT}/ltt/markers
+
+echo Connecting all markers
+
+for c in ${MARKERSROOT}/*; do
+ case ${c} in
+ ${MARKERSROOT}/metadata)
+ ;;
+ ${MARKERSROOT}/locking)
+ ;;
+ ${MARKERSROOT}/lockdep)
+ ;;
+ *)
+ for m in ${c}/*; do
+ echo Connecting ${m}
+ echo 1 > ${m}/enable
+ done
+ ;;
+ esac
+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 -v %k|awk '{print $2}'|sort -u |grep ^tap_`
+#
+##Uncomment the following to also record lockdep events.
+##MARKERS=`cat /proc/ltt|grep -v %k|awk '{print $2}'|sort -u|grep -e ^tap_ -e ^lockdep`
+#
+#IFS=${N}
+#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" > /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 $a ftrace_system_start" > /proc/ltt
+done
+
+
--- /dev/null
+#excluding core markers (already connected)
+#excluding locking markers (high traffic)
+
+DEBUGFSROOT=$(grep ^debugfs /proc/mounts | head -1 | awk '{print $2}')
+MARKERSROOT=${DEBUGFSROOT}/ltt/markers
+
+echo Disconnecting all markers
+
+for c in ${MARKERSROOT}/*; do
+ case ${c} in
+ ${MARKERSROOT}/metadata)
+ ;;
+ ${MARKERSROOT}/locking)
+ ;;
+ ${MARKERSROOT}/lockdep)
+ ;;
+ *)
+ for m in ${c}/*; do
+ echo Disconnecting ${m}
+ echo 0 > ${m}/enable
+ done
+ ;;
+ esac
+done
+
+## Markers starting with "tap_" are considered high-speed.
+#echo Disconnecting high-rate markers to tap
+#MARKERS=`cat /proc/ltt|grep -v %k|awk '{print $2 " " $4}'|sort -u |grep ^tap`
+#
+##Uncomment the following to also stop recording lockdep events.
+##MARKERS=`cat /proc/ltt|grep -v %k|awk '{print $2}'|sort -u|grep -e ^tap_ -e ^lockdep`
+#
+#IFS=${N}
+#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>
+ *
+ * Copyright 2008 FUJITSU
+ * Zhao Lei <zhaolei@cn.fujitsu.com>
+ * Gui Jianfeng <guijianfeng@cn.fujitsu.com>
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <liblttctl/lttctl.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <string.h>
+#include <limits.h>
+#define _GNU_SOURCE
+#include <getopt.h>
+
+#define OPT_MAX (1024)
+#define OPT_NAMELEN (256)
+#define OPT_VALSTRINGLEN (256)
+
+enum opt_type {
+ CHANNEL,
+};
+
+struct channel_option {
+ char chan_name[OPT_NAMELEN];
+ int enable;
+ int overwrite;
+ int bufnum;
+ int bufsize;
+};
+
+struct lttctl_option {
+ union {
+ struct channel_option chan_opt;
+ } opt_mode;
+ enum opt_type type;
+ struct lttctl_option *next;
+};
+
+struct lttctl_option *opt_head, *last_opt;
+
+static int opt_create;
+static int opt_destroy;
+static int opt_start;
+static int opt_pause;
+static int opt_help;
+static const char *opt_transport;
+static const char *opt_write;
+static int opt_append;
+static unsigned int opt_dump_threads;
+static char channel_root_default[PATH_MAX];
+static const char *opt_channel_root;
+static const char *opt_tracename;
+
+/* Args :
+ *
+ */
+static void show_arguments(void)
+{
+ printf("Linux Trace Toolkit Trace Control " VERSION"\n");
+ printf("\n");
+ printf("Usage: lttctl [OPTION]... [TRACENAME]\n");
+ printf("\n");
+ printf("Examples:\n");
+ printf(" lttctl -c trace1 "
+ "# Create a trace named trace1.\n");
+ printf(" lttctl -s trace1 "
+ "# start a trace named trace1.\n");
+ printf(" lttctl -p trace1 "
+ "# pause a trace named trace1.\n");
+ printf(" lttctl -d trace1 "
+ "# Destroy a trace named trace1.\n");
+ printf(" lttctl -C -w /tmp/trace1 trace1 "
+ "# Create a trace named trace1, start it and\n"
+ " "
+ "# write non-overwrite channels' data to\n"
+ " "
+ "# /tmp/trace1, debugfs must be mounted for\n"
+ " "
+ "# auto-find\n");
+ printf(" lttctl -D -w /tmp/trace1 trace1 "
+ "# Pause and destroy a trace named trace1 and\n"
+ " "
+ "# write overwrite channels' data to\n"
+ " "
+ "# /tmp/trace1, debugfs must be mounted for\n"
+ " "
+ "# auto-find\n");
+ printf("\n");
+ printf(" Basic options:\n");
+ printf(" -c, --create\n");
+ printf(" Create a trace.\n");
+ printf(" -d, --destroy\n");
+ printf(" Destroy a trace.\n");
+ printf(" -s, --start\n");
+ printf(" Start a trace.\n");
+ printf(" -p, --pause\n");
+ printf(" Pause a trace.\n");
+ printf(" -h, --help\n");
+ printf(" Show this help.\n");
+ printf("\n");
+ printf(" Advanced options:\n");
+ printf(" --transport TRANSPORT\n");
+ printf(" Set trace's transport. (ex. relay-locked or relay)\n");
+ printf(" -o, --option OPTION\n");
+ printf(" Set options, following operations are supported:\n");
+ printf(" channel.<channelname>.enable=\n");
+ printf(" channel.<channelname>.overwrite=\n");
+ printf(" channel.<channelname>.bufnum=\n");
+ printf(" channel.<channelname>.bufsize= (in bytes, rounded to "
+ "next power of 2)\n");
+ printf(" <channelname> can be set to all for all channels\n");
+ printf("\n");
+ printf(" Integration options:\n");
+ printf(" -C, --create_start\n");
+ printf(" Create and start a trace.\n");
+ printf(" -D, --pause_destroy\n");
+ printf(" Pause and destroy a trace.\n");
+ printf(" -w, --write PATH\n");
+ printf(" Path for write trace datas.\n");
+ printf(" For -c, -C, -d, -D options\n");
+ printf(" -a, --append\n");
+ printf(" Append to trace, For -w option\n");
+ printf(" -n, --dump_threads NUMBER\n");
+ printf(" Number of lttd threads, For -w option\n");
+ printf(" --channel_root PATH\n");
+ printf(" Set channels root path, For -w option."
+ " (ex. /mnt/debugfs/ltt)\n");
+ printf("\n");
+}
+
+/*
+ * Separate option name to 3 fields
+ * Ex:
+ * Input: name = channel.cpu.bufsize
+ * Output: name1 = channel
+ * name2 = cpu
+ * name3 = bufsize
+ * Ret: 0 on success
+ * 1 on fail
+ *
+ * Note:
+ * Make sure that name1~3 longer than OPT_NAMELEN.
+ * name1~3 can be NULL to discard value
+ *
+ */
+static int separate_opt(const char *name, char *name1, char *name2, char *name3)
+{
+ char *p;
+
+ if (!name)
+ return 1;
+
+ /* segment1 */
+ p = strchr(name, '.');
+ if (!p)
+ return 1;
+ if (p - name >= OPT_NAMELEN)
+ return 1;
+ if (name1) {
+ memcpy(name1, name, p - name);
+ name1[p - name] = 0;
+ }
+ name = p + 1;
+
+ /* segment2 */
+ p = strchr(name, '.');
+ if (!p)
+ return 1;
+ if (p - name >= OPT_NAMELEN)
+ return 1;
+ if (name2) {
+ memcpy(name2, name, p - name);
+ name2[p - name] = 0;
+ }
+ name = p + 1;
+
+ /* segment3 */
+ if (strlen(name) >= OPT_NAMELEN)
+ return 1;
+ if (name3)
+ strcpy(name3, name);
+
+ return 0;
+}
+
+static void init_channel_opt(struct channel_option *opt, char *opt_name)
+{
+ if (opt && opt_name) {
+ opt->enable = -1;
+ opt->overwrite = -1;
+ opt->bufnum = -1;
+ opt->bufsize = -1;
+ strcpy(opt->chan_name, opt_name);
+ }
+}
+
+static struct lttctl_option *find_insert_channel_opt(char *opt_name)
+{
+ struct lttctl_option *iter, *new_opt;
+
+ if (!opt_head) {
+ opt_head = (struct lttctl_option *)malloc(sizeof(struct lttctl_option));
+ init_channel_opt(&opt_head->opt_mode.chan_opt, opt_name);
+ opt_head->type = CHANNEL;
+ opt_head->next = NULL;
+ last_opt = opt_head;
+ return opt_head;
+ }
+
+ for (iter = opt_head; iter; iter = iter->next) {
+ if (iter->type != CHANNEL)
+ continue;
+ if (!strcmp(iter->opt_mode.chan_opt.chan_name, opt_name))
+ return iter;
+ }
+
+ new_opt = (struct lttctl_option *)malloc(sizeof(struct lttctl_option));
+ init_channel_opt(&new_opt->opt_mode.chan_opt, opt_name);
+ new_opt->type = CHANNEL;
+ new_opt->next = NULL;
+ last_opt->next = new_opt;
+ last_opt = new_opt;
+ return new_opt;
+}
+
+int set_channel_opt(struct channel_option *opt, char *opt_name, char *opt_valstr)
+{
+ int opt_val, ret;
+
+ if (!strcmp("enable", opt_name)) {
+ if (opt_valstr[1] != 0) {
+ return -EINVAL;
+ }
+ if (opt_valstr[0] == 'Y' || opt_valstr[0] == 'y'
+ || opt_valstr[0] == '1')
+ opt_val = 1;
+ else if (opt_valstr[0] == 'N' || opt_valstr[0] == 'n'
+ || opt_valstr[0] == '0')
+ opt_val = 0;
+ else {
+ return -EINVAL;
+ }
+
+ opt->enable = opt_val;
+ return 0;
+ } else if (!strcmp("overwrite", opt_name)) {
+ if (opt_valstr[1] != 0) {
+ return -EINVAL;
+ }
+ if (opt_valstr[0] == 'Y' || opt_valstr[0] == 'y'
+ || opt_valstr[0] == '1')
+ opt_val = 1;
+ else if (opt_valstr[0] == 'N' || opt_valstr[0] == 'n'
+ || opt_valstr[0] == '0')
+ opt_val = 0;
+ else {
+ return -EINVAL;
+ }
+
+ opt->overwrite = opt_val;
+ return 0;
+
+ } else if (!strcmp("bufnum", opt_name)) {
+ ret = sscanf(opt_valstr, "%d", &opt_val);
+ if (ret != 1 || opt_val < 0) {
+ return -EINVAL;
+ }
+
+ opt->bufnum = opt_val;
+ return 0;
+ } else if (!strcmp("bufsize", opt_name)) {
+ ret = sscanf(opt_valstr, "%d", &opt_val);
+ if (ret != 1 || opt_val < 0) {
+ return -EINVAL;
+ }
+
+ opt->bufsize = opt_val;
+ return 0;
+ } else {
+ return -EINVAL;
+ }
+
+}
+
+static int parst_opt(const char *optarg)
+{
+ int ret;
+ char opt_name[OPT_NAMELEN * 3];
+ char opt_valstr[OPT_VALSTRINGLEN];
+ char *p;
+
+ char name1[OPT_NAMELEN];
+ char name2[OPT_NAMELEN];
+ char name3[OPT_NAMELEN];
+
+ int opt_intval;
+ int opt_val;
+ unsigned int opt_uintval;
+ struct lttctl_option *opt;
+
+ if (!optarg) {
+ fprintf(stderr, "Option empty\n");
+ return -EINVAL;
+ }
+
+ /* Get option name and val_str */
+ p = strchr(optarg, '=');
+ if (!p) {
+ fprintf(stderr, "Option format error: %s\n", optarg);
+ return -EINVAL;
+ }
+
+ if (p - optarg >= sizeof(opt_name)/sizeof(opt_name[0])) {
+ fprintf(stderr, "Option name too long: %s\n", optarg);
+ return -EINVAL;
+ }
+
+ if (strlen(p+1) >= OPT_VALSTRINGLEN) {
+ fprintf(stderr, "Option value too long: %s\n", optarg);
+ return -EINVAL;
+ }
+
+ memcpy(opt_name, optarg, p - optarg);
+ opt_name[p - optarg] = 0;
+ strcpy(opt_valstr, p+1);
+
+ /* separate option name into 3 fields */
+ ret = separate_opt(opt_name, name1, name2, name3);
+ if (ret != 0) {
+ fprintf(stderr, "Option name error1: %s\n", optarg);
+ return -EINVAL;
+ }
+
+ if (!strcmp("channel", name1)) {
+ opt = find_insert_channel_opt(name2);
+ if ((ret = set_channel_opt(&opt->opt_mode.chan_opt,
+ name3, opt_valstr) != 0)) {
+ fprintf(stderr, "Option name error2: %s\n", optarg);
+ return ret;
+ }
+ } else {
+ fprintf(stderr, "Option name error3: %s\n", optarg);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/* 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.
+ */
+static int parse_arguments(int argc, char **argv)
+{
+ int ret = 0;
+
+ static struct option longopts[] = {
+ {"create", no_argument, NULL, 'c'},
+ {"destroy", no_argument, NULL, 'd'},
+ {"start", no_argument, NULL, 's'},
+ {"pause", no_argument, NULL, 'p'},
+ {"help", no_argument, NULL, 'h'},
+ {"transport", required_argument, NULL, 2},
+ {"option", required_argument, NULL, 'o'},
+ {"create_start", no_argument, NULL, 'C'},
+ {"pause_destroy", no_argument, NULL, 'D'},
+ {"write", required_argument, NULL, 'w'},
+ {"append", no_argument, NULL, 'a'},
+ {"dump_threads", required_argument, NULL, 'n'},
+ {"channel_root", required_argument, NULL, 3},
+ { NULL, 0, NULL, 0 },
+ };
+
+ /*
+ * Enable all channels in default
+ * To make novice users happy
+ */
+ parst_opt("channel.all.enable=1");
+
+ opterr = 1; /* Print error message on getopt_long */
+ while (1) {
+ int c;
+ c = getopt_long(argc, argv, "cdspho:CDw:an:", longopts, NULL);
+ if (-1 == c) {
+ /* parse end */
+ break;
+ }
+ switch (c) {
+ case 'c':
+ opt_create = 1;
+ break;
+ case 'd':
+ opt_destroy = 1;
+ break;
+ case 's':
+ opt_start = 1;
+ break;
+ case 'p':
+ opt_pause = 1;
+ break;
+ case 'h':
+ opt_help = 1;
+ break;
+ case 2:
+ if (!opt_transport) {
+ opt_transport = optarg;
+ } else {
+ fprintf(stderr,
+ "Please specify only 1 transport\n");
+ return -EINVAL;
+ }
+ break;
+ case 'o':
+ ret = parst_opt(optarg);
+ if (ret)
+ return ret;
+ break;
+ case 'C':
+ opt_create = 1;
+ opt_start = 1;
+ break;
+ case 'D':
+ opt_pause = 1;
+ opt_destroy = 1;
+ break;
+ case 'w':
+ if (!opt_write) {
+ opt_write = optarg;
+ } else {
+ fprintf(stderr,
+ "Please specify only 1 write dir\n");
+ return -EINVAL;
+ }
+ break;
+ case 'a':
+ opt_append = 1;
+ break;
+ case 'n':
+ if (opt_dump_threads) {
+ fprintf(stderr,
+ "Please specify only 1 dump threads\n");
+ return -EINVAL;
+ }
+
+ ret = sscanf(optarg, "%u", &opt_dump_threads);
+ if (ret != 1) {
+ fprintf(stderr,
+ "Dump threads not positive number\n");
+ return -EINVAL;
+ }
+ break;
+ case 3:
+ if (!opt_channel_root) {
+ opt_channel_root = optarg;
+ } else {
+ fprintf(stderr,
+ "Please specify only 1 channel root\n");
+ return -EINVAL;
+ }
+ break;
+ case '?':
+ return -EINVAL;
+ default:
+ break;
+ };
+ };
+
+ /* Don't check args when user needs help */
+ if (opt_help)
+ return 0;
+
+ /* Get tracename */
+ if (optind < argc - 1) {
+ fprintf(stderr, "Please specify only 1 trace name\n");
+ return -EINVAL;
+ }
+ if (optind > argc - 1) {
+ fprintf(stderr, "Please specify trace name\n");
+ return -EINVAL;
+ }
+ opt_tracename = argv[optind];
+
+ /*
+ * Check arguments
+ */
+ if (!opt_create && !opt_start && !opt_destroy && !opt_pause) {
+ fprintf(stderr,
+ "Please specify a option of "
+ "create, destroy, start, or pause\n");
+ return -EINVAL;
+ }
+
+ if ((opt_create || opt_start) && (opt_destroy || opt_pause)) {
+ fprintf(stderr,
+ "Create and start conflict with destroy and pause\n");
+ return -EINVAL;
+ }
+
+ if (opt_create) {
+ if (!opt_transport)
+ opt_transport = "relay";
+ }
+
+ if (opt_transport) {
+ if (!opt_create) {
+ fprintf(stderr,
+ "Transport option must be combine with create"
+ " option\n");
+ return -EINVAL;
+ }
+ }
+
+ if (opt_write) {
+ if (!opt_create && !opt_destroy) {
+ fprintf(stderr,
+ "Write option must be combine with create or"
+ " destroy option\n");
+ return -EINVAL;
+ }
+
+ if (!opt_channel_root)
+ if (getdebugfsmntdir(channel_root_default) == 0) {
+ strcat(channel_root_default, "/ltt");
+ opt_channel_root = channel_root_default;
+ } else {
+ fprintf(stderr,
+ "Channel_root is necessary for -w"
+ " option, but neither --channel_root"
+ " option\n"
+ "specified, nor debugfs's mount dir"
+ " found, mount debugfs also failed\n");
+ return -EINVAL;
+ }
+
+ if (opt_dump_threads == 0)
+ opt_dump_threads = 1;
+ }
+
+ if (opt_append) {
+ if (!opt_write) {
+ fprintf(stderr,
+ "Append option must be combine with write"
+ " option\n");
+ return -EINVAL;
+ }
+ }
+
+ if (opt_dump_threads) {
+ if (!opt_write) {
+ fprintf(stderr,
+ "Dump_threads option must be combine with write"
+ " option\n");
+ return -EINVAL;
+ }
+ }
+
+ if (opt_channel_root) {
+ if (!opt_write) {
+ fprintf(stderr,
+ "Channel_root option must be combine with write"
+ " option\n");
+ return -EINVAL;
+ }
+ }
+
+ return 0;
+}
+
+static void show_info(void)
+{
+ printf("Linux Trace Toolkit Trace Control " VERSION"\n");
+ printf("\n");
+ if (opt_tracename != NULL) {
+ printf("Controlling trace : %s\n", opt_tracename);
+ printf("\n");
+ }
+}
+
+static int lttctl_channel_setup(struct channel_option *opt)
+{
+ int ret;
+
+ if (opt->enable != -1) {
+ if ((ret = lttctl_set_channel_enable(opt_tracename,
+ opt->chan_name,
+ opt->enable)) != 0)
+ return ret;
+ }
+ if (opt->overwrite != -1) {
+ if ((ret = lttctl_set_channel_overwrite(opt_tracename,
+ opt->chan_name,
+ opt->overwrite)) != 0)
+ return ret;
+ }
+ if (opt->bufnum != -1) {
+ if ((ret = lttctl_set_channel_subbuf_num(opt_tracename,
+ opt->chan_name,
+ opt->bufnum)) != 0)
+ return ret;
+ }
+ if (opt->bufsize != -1) {
+ if ((ret = lttctl_set_channel_subbuf_size(opt_tracename,
+ opt->chan_name,
+ opt->bufsize)) != 0)
+ return ret;
+ }
+
+ return 0;
+}
+
+static int lttctl_create_trace(void)
+{
+ int ret;
+ int i;
+ struct lttctl_option *opt;
+
+ ret = lttctl_setup_trace(opt_tracename);
+ if (ret)
+ goto setup_trace_fail;
+
+ for (opt = opt_head; opt; opt = opt->next) {
+ if (opt->type != CHANNEL)
+ continue;
+ ret = lttctl_channel_setup(&opt->opt_mode.chan_opt);
+ if (ret)
+ goto set_option_fail;;
+ }
+
+ ret = lttctl_set_trans(opt_tracename, opt_transport);
+ if (ret)
+ goto set_option_fail;
+
+ ret = lttctl_alloc_trace(opt_tracename);
+ if (ret)
+ goto alloc_trace_fail;
+
+ return 0;
+
+alloc_trace_fail:
+set_option_fail:
+ lttctl_destroy_trace(opt_tracename);
+setup_trace_fail:
+ return ret;
+}
+
+/*
+ * Start a lttd daemon to write trace datas
+ * Dump overwrite channels on overwrite!=0
+ * Dump normal(non-overwrite) channels on overwrite=0
+ *
+ * ret: 0 on success
+ * !0 on fail
+ */
+static int lttctl_daemon(int overwrite)
+{
+ pid_t pid;
+ int status;
+
+ pid = fork();
+ if (pid < 0) {
+ perror("Error in forking for lttd daemon");
+ return errno;
+ }
+
+ if (pid == 0) {
+ /* child */
+ char *argv[16];
+ int argc = 0;
+ char channel_path[PATH_MAX];
+ char thread_num[16];
+
+ /* prog path */
+ argv[argc] = getenv("LTT_DAEMON");
+ if (argv[argc] == NULL)
+ argv[argc] = PACKAGE_BIN_DIR "/lttd";
+ argc++;
+
+ /* -t option */
+ argv[argc] = "-t";
+ argc++;
+ /*
+ * we allow modify of opt_write's content in new process
+ * for get rid of warning of assign char * to const char *
+ */
+ argv[argc] = (char *)opt_write;
+ argc++;
+
+ /* -c option */
+ strcpy(channel_path, opt_channel_root);
+ strcat(channel_path, "/");
+ strcat(channel_path, opt_tracename);
+ argv[argc] = "-c";
+ argc++;
+ argv[argc] = channel_path;
+ argc++;
+
+ /* -N option */
+ sprintf(thread_num, "%u", opt_dump_threads);
+ argv[argc] = "-N";
+ argc++;
+ argv[argc] = thread_num;
+ argc++;
+
+ /* -a option */
+ if (opt_append) {
+ argv[argc] = "-a";
+ argc++;
+ }
+
+ /* -d option */
+ argv[argc] = "-d";
+ argc++;
+
+ /* overwrite option */
+ if (overwrite) {
+ argv[argc] = "-f";
+ argc++;
+ } else {
+ argv[argc] = "-n";
+ argc++;
+ }
+
+ argv[argc] = NULL;
+
+ execvp(argv[0], argv);
+
+ perror("Error in executing the lttd daemon");
+ exit(errno);
+ }
+
+ /* parent */
+ if (waitpid(pid, &status, 0) == -1) {
+ perror("Error in waitpid\n");
+ return errno;
+ }
+
+ if (!WIFEXITED(status)) {
+ fprintf(stderr, "lttd process interrupted\n");
+ return status;
+ }
+
+ if (WEXITSTATUS(status))
+ fprintf(stderr, "lttd process running failed\n");
+
+ return WEXITSTATUS(status);
+}
+
+int main(int argc, char **argv)
+{
+ int ret;
+
+ ret = parse_arguments(argc, argv);
+ /* If user needs show help, we disregard other options */
+ if (opt_help) {
+ show_arguments();
+ return 0;
+ }
+
+ /* exit program if arguments wrong */
+ if (ret)
+ return 1;
+
+ show_info();
+
+ ret = lttctl_init();
+ if (ret != 0)
+ return ret;
+
+ if (opt_create) {
+ printf("lttctl: Creating trace\n");
+ ret = lttctl_create_trace();
+ if (ret)
+ goto op_fail;
+
+ if (opt_write) {
+ printf("lttctl: Forking lttd\n");
+ ret = lttctl_daemon(0);
+ if (ret)
+ goto op_fail;
+ }
+ }
+
+ if (opt_start) {
+ printf("lttctl: Starting trace\n");
+ ret = lttctl_start(opt_tracename);
+ if (ret)
+ goto op_fail;
+ }
+
+ if (opt_pause) {
+ printf("lttctl: Pausing trace\n");
+ ret = lttctl_pause(opt_tracename);
+ if (ret)
+ goto op_fail;
+ }
+
+ if (opt_destroy) {
+ if (opt_write) {
+ printf("lttctl: Forking lttd\n");
+ ret = lttctl_daemon(1);
+ if (ret)
+ goto op_fail;
+ }
+
+ printf("lttctl: Destroying trace\n");
+ ret = lttctl_destroy_trace(opt_tracename);
+ if (ret)
+ goto op_fail;
+ }
+
+op_fail:
+ lttctl_destroy();
+
+ 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 <sys/inotify.h>
+#if 0 /* should now be provided by libc. */
+/* 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);
+}
+#endif //0
+#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;
+};
+
+static __thread int thread_pipe[2];
+
+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;
+static int verbose_mode = 0;
+
+#define printf_verbose(fmt, args...) \
+ do { \
+ if (verbose_mode) \
+ printf(fmt, ##args); \
+ } while (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("-v Verbose mode.\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;
+ case 'v':
+ verbose_mode = 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_verbose("Skipping normal channel %s\n",
+ path_channel);
+ return 0;
+ }
+ } else {
+ if(dump_normal_only) {
+ printf_verbose("Skipping flight channel %s\n",
+ path_channel);
+ return 0;
+ }
+ }
+ printf_verbose("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_verbose("Appending to file %s as requested\n",
+ path_trace);
+
+ fd_pairs->pair[fd_pairs->num_pairs-1].trace =
+ open(path_trace, O_WRONLY,
+ S_IRWXU|S_IRWXG|S_IRWXO);
+ if(fd_pairs->pair[fd_pairs->num_pairs-1].trace == -1) {
+ perror(path_trace);
+ }
+ ret = lseek(fd_pairs->pair[fd_pairs->num_pairs-1].trace,
+ 0, SEEK_END);
+ if (ret < 0) {
+ 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_verbose("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_verbose("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_verbose("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_verbose("Channel file : %s\n", path_channel);
+
+ if(S_ISDIR(stat_buf.st_mode)) {
+
+ printf_verbose("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;
+ long ret;
+ unsigned long len;
+ off_t offset;
+
+
+ err = ioctl(pair->channel, RELAY_GET_SUBBUF, &consumed_old);
+ printf_verbose("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;
+ }
+#if 0
+ 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;
+ }
+#endif //0
+ len = pair->subbuf_size;
+ offset = 0;
+ while (len > 0) {
+ printf_verbose("splice chan to pipe offset %lu\n",
+ (unsigned long)offset);
+ ret = splice(pair->channel, &offset, thread_pipe[1], NULL,
+ len, SPLICE_F_MOVE);
+ printf_verbose("splice chan to pipe ret %ld\n", ret);
+ if (ret < 0) {
+ perror("Error in relay splice");
+ goto write_error;
+ }
+ ret = splice(thread_pipe[0], NULL, pair->trace, NULL,
+ ret, SPLICE_F_MOVE);
+ printf_verbose("splice pipe to file %ld\n", ret);
+ if (ret < 0) {
+ perror("Error in file splice");
+ goto write_error;
+ }
+ len -= ret;
+ }
+
+#if 0
+ err = fsync(pair->trace);
+ if(err < 0) {
+ ret = errno;
+ perror("Error in writing to file");
+ goto write_error;
+ }
+#endif //0
+write_error:
+ ret = 0;
+ 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;
+ }
+ }
+
+#if 0
+ /* 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;
+ }
+
+#endif //0
+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;
+
+#if 0
+ err_ret = munmap(pair->mmap, pair->subbuf_size * pair->n_subbufs);
+ if(err_ret != 0) {
+ perror("Error in munmap");
+ }
+ ret |= err_ret;
+#endif //0
+ 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_verbose(
+ "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_verbose("Data received\n");
+#ifdef HAS_INOTIFY
+ switch(pollfd[0].revents) {
+ case POLLERR:
+ printf_verbose(
+ "Error returned in polling inotify fd %d.\n",
+ pollfd[0].fd);
+ break;
+ case POLLHUP:
+ printf_verbose(
+ "Polling inotify fd %d tells it has hung up.\n",
+ pollfd[0].fd);
+ break;
+ case POLLNVAL:
+ printf_verbose(
+ "Polling inotify fd %d tells fd is not open.\n",
+ pollfd[0].fd);
+ break;
+ case POLLPRI:
+ case POLLIN:
+ printf_verbose(
+ "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_verbose(
+ "Error returned in polling fd %d.\n",
+ pollfd[i].fd);
+ num_hup++;
+ break;
+ case POLLHUP:
+ printf_verbose(
+ "Polling fd %d tells it has hung up.\n",
+ pollfd[i].fd);
+ num_hup++;
+ break;
+ case POLLNVAL:
+ printf_verbose(
+ "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_verbose(
+ "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_verbose(
+ "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 = pipe(thread_pipe);
+ if (ret < 0) {
+ perror("Error creating pipe");
+ return (void*)ret;
+ }
+ ret = read_channels(thread_num, &fd_pairs, inotify_fd, &inotify_watch_array);
+ close(thread_pipe[0]); /* close read end */
+ close(thread_pipe[1]); /* close write end */
+ 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 (fd_pairs.num_pairs == 0) {
+ printf("No channel available for reading, exiting\n");
+ ret = -ENOENT;
+ 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();
+
+ /* 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;
+
+ if(daemon_mode) {
+ ret = daemon(0, 0);
+
+ if(ret == -1) {
+ perror("An error occured while daemonizing.");
+ exit(-1);
+ }
+ }
+
+ 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
+++ /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,0.69-23072009)
-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 debugfs.
- *
- * 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 <string.h>
-#include <dirent.h>
-#include <limits.h>
-#include <fcntl.h>
-#include <stdlib.h>
-
-#define MAX_CHANNEL (256)
-
-static char debugfsmntdir[PATH_MAX];
-
-static int initdebugfsmntdir(void)
-{
- return getdebugfsmntdir(debugfsmntdir);
-}
-
-/*
- * This function must called posterior to initdebugfsmntdir(),
- * because it need to use debugfsmntdir[] which is inited in initdebugfsmntdir()
- */
-static int initmodule(void)
-{
- char controldirname[PATH_MAX];
- DIR *dir;
- int tryload_done = 0;
-
- sprintf(controldirname, "%s/ltt/control/", debugfsmntdir);
-
-check_again:
- /*
- * Check ltt control's debugfs dir
- *
- * We don't check is ltt-trace-control module exist, because it maybe
- * compiled into kernel.
- */
- dir = opendir(controldirname);
- if (dir) {
- closedir(dir);
- return 0;
- }
-
- if (!tryload_done) {
- system("modprobe ltt-trace-control");
- tryload_done = 1;
- goto check_again;
- }
-
- return -ENOENT;
-}
-
-int lttctl_init(void)
-{
- int ret;
-
-
- ret = initdebugfsmntdir();
- if (ret) {
- fprintf(stderr, "Get debugfs mount point failed\n");
- return ret;
- }
-
- ret = initmodule();
- if (ret) {
- fprintf(stderr, "Control module seems not work\n");
- return ret;
- }
-
- return 0;
-}
-
-int lttctl_destroy(void)
-{
- return 0;
-}
-
-static int lttctl_sendop(const char *fname, const char *op)
-{
- int fd;
-
- if (!fname) {
- fprintf(stderr, "%s: args invalid\n", __func__);
- return 1;
- }
-
- fd = open(fname, O_WRONLY);
- if (fd == -1) {
- fprintf(stderr, "%s: open %s failed: %s\n", __func__, fname,
- strerror(errno));
- return errno;
- }
-
- if (write(fd, op, strlen(op)) == -1) {
- int ret = errno;
- fprintf(stderr, "%s: write %s to %s failed: %s\n", __func__, op,
- fname, strerror(errno));
- close(fd);
- return ret;
- }
-
- close(fd);
-
- return 0;
-}
-
-/*
- * check is trace exist(check debugfsmntdir too)
- * expect:
- * 0: expect that trace not exist
- * !0: expect that trace exist
- *
- * ret:
- * 0: check pass
- * -(EEXIST | ENOENT): check failed
- * -ERRNO: error happened (no check)
- */
-static int lttctl_check_trace(const char *name, int expect)
-{
- char tracedirname[PATH_MAX];
- DIR *dir;
- int exist;
-
- if (!name) {
- fprintf(stderr, "%s: args invalid\n", __func__);
- return -EINVAL;
- }
-
- if (!debugfsmntdir[0]) {
- fprintf(stderr, "%s: debugfsmntdir not valid\n", __func__);
- return -EINVAL;
- }
-
- sprintf(tracedirname, "%s/ltt/control/%s", debugfsmntdir, name);
-
- dir = opendir(tracedirname);
- if (dir) {
- exist = 1;
- } else {
- if (errno != ENOENT) {
- fprintf(stderr, "%s: %s\n", __func__, strerror(errno));
- return -EINVAL;
- }
- exist = 0;
- }
-
- closedir(dir);
-
- if (!expect != !exist) {
- if (exist)
- {
- fprintf(stderr, "Trace %s already exist\n", name);
- return -EEXIST;
- }
- else
- {
- fprintf(stderr, "Trace %s not exist\n", name);
- return -ENOENT;
- }
-
- }
-
- return 0;
-}
-
-/*
- * get channel list of a trace
- * don't include metadata channel when metadata is 0
- *
- * return number of channel on success
- * return negative number on fail
- * Caller must free channellist.
- */
-static int lttctl_get_channellist(const char *tracename,
- char ***channellist, int metadata)
-{
- char tracedirname[PATH_MAX];
- struct dirent *dirent;
- DIR *dir;
- char **list = NULL, **old_list;
- int nr_chan = 0;
-
- sprintf(tracedirname, "%s/ltt/control/%s/channel", debugfsmntdir,
- tracename);
-
- dir = opendir(tracedirname);
- if (!dir) {
- nr_chan = -ENOENT;
- goto error;
- }
-
- for (;;) {
- dirent = readdir(dir);
- if (!dirent)
- break;
- if (!strcmp(dirent->d_name, ".")
- || !strcmp(dirent->d_name, ".."))
- continue;
- if (!metadata && !strcmp(dirent->d_name, "metadata"))
- continue;
- old_list = list;
- list = malloc(sizeof(char *) * ++nr_chan);
- memcpy(list, old_list, sizeof(*list) * (nr_chan - 1));
- free(old_list);
- list[nr_chan - 1] = strdup(dirent->d_name);
- }
-
- closedir(dir);
-
- *channellist = list;
- return nr_chan;
-error:
- free(list);
- *channellist = NULL;
- return nr_chan;
-}
-
-static void lttctl_free_channellist(char **channellist, int n_channel)
-{
- int i = 0;
- for(; i < n_channel; ++i)
- free(channellist[i]);
- free(channellist);
-}
-
-int lttctl_setup_trace(const char *name)
-{
- int ret;
- char ctlfname[PATH_MAX];
-
- if (!name) {
- fprintf(stderr, "%s: args invalid\n", __func__);
- ret = -EINVAL;
- goto arg_error;
- }
-
- ret = lttctl_check_trace(name, 0);
- if (ret)
- goto arg_error;
-
- sprintf(ctlfname, "%s/ltt/setup_trace", debugfsmntdir);
-
- ret = lttctl_sendop(ctlfname, name);
- if (ret) {
- fprintf(stderr, "Setup trace failed\n");
- goto op_err;
- }
-
- return 0;
-
-op_err:
-arg_error:
- return ret;
-}
-
-int lttctl_destroy_trace(const char *name)
-{
- int ret;
- char ctlfname[PATH_MAX];
-
- if (!name) {
- fprintf(stderr, "%s: args invalid\n", __func__);
- ret = -EINVAL;
- goto arg_error;
- }
-
- ret = lttctl_check_trace(name, 1);
- if (ret)
- goto arg_error;
-
- sprintf(ctlfname, "%s/ltt/destroy_trace", debugfsmntdir);
-
- ret = lttctl_sendop(ctlfname, name);
- if (ret) {
- fprintf(stderr, "Destroy trace failed\n");
- goto op_err;
- }
-
- return 0;
-
-op_err:
-arg_error:
- return ret;
-}
-
-int lttctl_alloc_trace(const char *name)
-{
- int ret;
- char ctlfname[PATH_MAX];
-
- if (!name) {
- fprintf(stderr, "%s: args invalid\n", __func__);
- ret = -EINVAL;
- goto arg_error;
- }
-
- ret = lttctl_check_trace(name, 1);
- if (ret)
- goto arg_error;
-
- sprintf(ctlfname, "%s/ltt/control/%s/alloc", debugfsmntdir, name);
-
- ret = lttctl_sendop(ctlfname, "1");
- if (ret) {
- fprintf(stderr, "Allocate trace failed\n");
- goto op_err;
- }
-
- return 0;
-
-op_err:
-arg_error:
- return ret;
-}
-
-int lttctl_start(const char *name)
-{
- int ret;
- char ctlfname[PATH_MAX];
-
- if (!name) {
- fprintf(stderr, "%s: args invalid\n", __func__);
- ret = -EINVAL;
- goto arg_error;
- }
-
- ret = lttctl_check_trace(name, 1);
- if (ret)
- goto arg_error;
-
- sprintf(ctlfname, "%s/ltt/control/%s/enabled", debugfsmntdir, name);
-
- ret = lttctl_sendop(ctlfname, "1");
- if (ret) {
- fprintf(stderr, "Start trace failed\n");
- goto op_err;
- }
-
- return 0;
-
-op_err:
-arg_error:
- return ret;
-}
-
-int lttctl_pause(const char *name)
-{
- int ret;
- char ctlfname[PATH_MAX];
-
- if (!name) {
- fprintf(stderr, "%s: args invalid\n", __func__);
- ret = -EINVAL;
- goto arg_error;
- }
-
- ret = lttctl_check_trace(name, 1);
- if (ret)
- goto arg_error;
-
- sprintf(ctlfname, "%s/ltt/control/%s/enabled", debugfsmntdir, name);
-
- ret = lttctl_sendop(ctlfname, "0");
- if (ret) {
- fprintf(stderr, "Pause trace failed\n");
- goto op_err;
- }
-
- return 0;
-
-op_err:
-arg_error:
- return ret;
-}
-
-int lttctl_set_trans(const char *name, const char *trans)
-{
- int ret;
- char ctlfname[PATH_MAX];
-
- if (!name) {
- fprintf(stderr, "%s: args invalid\n", __func__);
- ret = -EINVAL;
- goto arg_error;
- }
-
- ret = lttctl_check_trace(name, 1);
- if (ret)
- goto arg_error;
-
- sprintf(ctlfname, "%s/ltt/control/%s/trans", debugfsmntdir, name);
-
- ret = lttctl_sendop(ctlfname, trans);
- if (ret) {
- fprintf(stderr, "Set transport failed\n");
- goto op_err;
- }
-
- return 0;
-
-op_err:
-arg_error:
- return ret;
-}
-
-static int __lttctl_set_channel_enable(const char *name, const char *channel,
- int enable)
-{
- int ret;
- char ctlfname[PATH_MAX];
-
- sprintf(ctlfname, "%s/ltt/control/%s/channel/%s/enable", debugfsmntdir,
- name, channel);
-
- ret = lttctl_sendop(ctlfname, enable ? "1" : "0");
- if (ret)
- fprintf(stderr, "Set channel's enable mode failed\n");
-
- return ret;
-}
-int lttctl_set_channel_enable(const char *name, const char *channel,
- int enable)
-{
- int ret;
- char **channellist;
- int n_channel;
-
- if (!name || !channel) {
- fprintf(stderr, "%s: args invalid\n", __func__);
- ret = -EINVAL;
- goto arg_error;
- }
-
- ret = lttctl_check_trace(name, 1);
- if (ret)
- goto arg_error;
-
- if (strcmp(channel, "all")) {
- ret = __lttctl_set_channel_enable(name, channel, enable);
- if (ret)
- goto op_err;
- } else {
- /* Don't allow set enable state for metadata channel */
- n_channel = lttctl_get_channellist(name, &channellist, 0);
- if (n_channel < 0) {
- fprintf(stderr, "%s: lttctl_get_channellist failed\n",
- __func__);
- ret = -ENOENT;
- goto op_err;
- }
-
- for (; n_channel > 0; n_channel--) {
- ret = __lttctl_set_channel_enable(name,
- channellist[n_channel - 1], enable);
- if (ret)
- goto op_err_clean;
- }
- lttctl_free_channellist(channellist, n_channel);
- }
-
- return 0;
-
-op_err_clean:
- lttctl_free_channellist(channellist, n_channel);
-op_err:
-arg_error:
- return ret;
-}
-
-static int __lttctl_set_channel_overwrite(const char *name, const char *channel,
- int overwrite)
-{
- int ret;
- char ctlfname[PATH_MAX];
-
- sprintf(ctlfname, "%s/ltt/control/%s/channel/%s/overwrite",
- debugfsmntdir, name, channel);
-
- ret = lttctl_sendop(ctlfname, overwrite ? "1" : "0");
- if (ret)
- fprintf(stderr, "Set channel's overwrite mode failed\n");
-
- return ret;
-}
-int lttctl_set_channel_overwrite(const char *name, const char *channel,
- int overwrite)
-{
- int ret;
- char **channellist;
- int n_channel;
-
- if (!name || !channel) {
- fprintf(stderr, "%s: args invalid\n", __func__);
- ret = -EINVAL;
- goto arg_error;
- }
-
- ret = lttctl_check_trace(name, 1);
- if (ret)
- goto arg_error;
-
- if (strcmp(channel, "all")) {
- ret = __lttctl_set_channel_overwrite(name, channel, overwrite);
- if (ret)
- goto op_err;
- } else {
- /* Don't allow set overwrite for metadata channel */
- n_channel = lttctl_get_channellist(name, &channellist, 0);
- if (n_channel < 0) {
- fprintf(stderr, "%s: lttctl_get_channellist failed\n",
- __func__);
- ret = -ENOENT;
- goto op_err;
- }
-
- for (; n_channel > 0; n_channel--) {
- ret = __lttctl_set_channel_overwrite(name,
- channellist[n_channel - 1], overwrite);
- if (ret)
- goto op_err_clean;
- }
- lttctl_free_channellist(channellist, n_channel);
- }
-
- return 0;
-
-op_err_clean:
- lttctl_free_channellist(channellist, n_channel);
-op_err:
-arg_error:
- return ret;
-}
-
-static int __lttctl_set_channel_subbuf_num(const char *name,
- const char *channel, unsigned subbuf_num)
-{
- int ret;
- char ctlfname[PATH_MAX];
- char opstr[32];
-
- sprintf(ctlfname, "%s/ltt/control/%s/channel/%s/subbuf_num",
- debugfsmntdir, name, channel);
-
- sprintf(opstr, "%u", subbuf_num);
-
- ret = lttctl_sendop(ctlfname, opstr);
- if (ret)
- fprintf(stderr, "Set channel's subbuf number failed\n");
-
- return ret;
-}
-int lttctl_set_channel_subbuf_num(const char *name, const char *channel,
- unsigned subbuf_num)
-{
- int ret;
- char **channellist;
- int n_channel;
-
- if (!name || !channel) {
- fprintf(stderr, "%s: args invalid\n", __func__);
- ret = -EINVAL;
- goto arg_error;
- }
-
- ret = lttctl_check_trace(name, 1);
- if (ret)
- goto arg_error;
-
- if (strcmp(channel, "all")) {
- ret = __lttctl_set_channel_subbuf_num(name, channel,
- subbuf_num);
- if (ret)
- goto op_err;
- } else {
- /* allow set subbuf_num for metadata channel */
- n_channel = lttctl_get_channellist(name, &channellist, 1);
- if (n_channel < 0) {
- fprintf(stderr, "%s: lttctl_get_channellist failed\n",
- __func__);
- ret = -ENOENT;
- goto op_err;
- }
-
- for (; n_channel > 0; n_channel--) {
- ret = __lttctl_set_channel_subbuf_num(name,
- channellist[n_channel - 1], subbuf_num);
- if (ret)
- goto op_err_clean;
- }
- lttctl_free_channellist(channellist, n_channel);
- }
-
- return 0;
-
-op_err_clean:
- lttctl_free_channellist(channellist, n_channel);
-op_err:
-arg_error:
- return ret;
-}
-
-static int __lttctl_set_channel_subbuf_size(const char *name,
- const char *channel, unsigned subbuf_size)
-{
- int ret;
- char ctlfname[PATH_MAX];
- char opstr[32];
-
- sprintf(ctlfname, "%s/ltt/control/%s/channel/%s/subbuf_size",
- debugfsmntdir, name, channel);
-
- sprintf(opstr, "%u", subbuf_size);
-
- ret = lttctl_sendop(ctlfname, opstr);
- if (ret)
- fprintf(stderr, "Set channel's subbuf size failed\n");
-}
-int lttctl_set_channel_subbuf_size(const char *name, const char *channel,
- unsigned subbuf_size)
-{
- int ret;
- char **channellist;
- int n_channel;
-
- if (!name || !channel) {
- fprintf(stderr, "%s: args invalid\n", __func__);
- ret = -EINVAL;
- goto arg_error;
- }
-
- ret = lttctl_check_trace(name, 1);
- if (ret)
- goto arg_error;
-
- if (strcmp(channel, "all")) {
- ret = __lttctl_set_channel_subbuf_size(name, channel,
- subbuf_size);
- if (ret)
- goto op_err;
- } else {
- /* allow set subbuf_size for metadata channel */
- n_channel = lttctl_get_channellist(name, &channellist, 1);
- if (n_channel < 0) {
- fprintf(stderr, "%s: lttctl_get_channellist failed\n",
- __func__);
- ret = -ENOENT;
- goto op_err;
- }
-
- for (; n_channel > 0; n_channel--) {
- ret = __lttctl_set_channel_subbuf_size(name,
- channellist[n_channel - 1], subbuf_size);
- if (ret)
- goto op_err_clean;
- }
- lttctl_free_channellist(channellist, n_channel);
- }
-
- return 0;
-
-op_err_clean:
- lttctl_free_channellist(channellist, n_channel);
-op_err:
-arg_error:
- return ret;
-}
-
-int getdebugfsmntdir(char *mntdir)
-{
- char mnt_dir[PATH_MAX];
- char mnt_type[PATH_MAX];
- int trymount_done = 0;
-
- FILE *fp = fopen("/proc/mounts", "r");
- if (!fp)
- return -EINVAL;
-
-find_again:
- while (1) {
- if (fscanf(fp, "%*s %s %s %*s %*s %*s", mnt_dir, mnt_type) <= 0)
- break;
-
- if (!strcmp(mnt_type, "debugfs")) {
- strcpy(mntdir, mnt_dir);
- return 0;
- }
- }
-
- if (!trymount_done) {
- mount("debugfs", "/sys/kernel/debug/", "debugfs", 0, NULL);
- trymount_done = 1;
- goto find_again;
- }
-
- return -ENOENT;
-}
+++ /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.
- *
- */
-
-#ifndef _LIBLTT_H
-#define _LIBLTT_H
-
-int lttctl_init(void);
-int lttctl_destroy(void);
-int lttctl_setup_trace(const char *name);
-int lttctl_destroy_trace(const char *name);
-int lttctl_alloc_trace(const char *name);
-int lttctl_start(const char *name);
-int lttctl_pause(const char *name);
-int lttctl_set_trans(const char *name, const char *trans);
-int lttctl_set_channel_enable(const char *name, const char *channel,
- int enable);
-int lttctl_set_channel_overwrite(const char *name, const char *channel,
- int overwrite);
-int lttctl_set_channel_subbuf_num(const char *name, const char *channel,
- unsigned subbuf_num);
-int lttctl_set_channel_subbuf_size(const char *name, const char *channel,
- unsigned subbuf_size);
-
-/* Helper functions */
-int getdebugfsmntdir(char *mntdir);
-
-#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 = $(lttctl_DEPENDENCIES)
-
+++ /dev/null
-#excluding core markers (already connected)
-#excluding locking markers (high traffic)
-
-DEBUGFSROOT=$(grep ^debugfs /proc/mounts | head -1 | awk '{print $2}')
-MARKERSROOT=${DEBUGFSROOT}/ltt/markers
-
-echo Connecting all markers
-
-for c in ${MARKERSROOT}/*; do
- case ${c} in
- ${MARKERSROOT}/metadata)
- ;;
- ${MARKERSROOT}/locking)
- ;;
- ${MARKERSROOT}/lockdep)
- ;;
- *)
- for m in ${c}/*; do
- echo Connecting ${m}
- echo 1 > ${m}/enable
- done
- ;;
- esac
-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 -v %k|awk '{print $2}'|sort -u |grep ^tap_`
-#
-##Uncomment the following to also record lockdep events.
-##MARKERS=`cat /proc/ltt|grep -v %k|awk '{print $2}'|sort -u|grep -e ^tap_ -e ^lockdep`
-#
-#IFS=${N}
-#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" > /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 $a ftrace_system_start" > /proc/ltt
-done
-
-
+++ /dev/null
-#excluding core markers (already connected)
-#excluding locking markers (high traffic)
-
-DEBUGFSROOT=$(grep ^debugfs /proc/mounts | head -1 | awk '{print $2}')
-MARKERSROOT=${DEBUGFSROOT}/ltt/markers
-
-echo Disconnecting all markers
-
-for c in ${MARKERSROOT}/*; do
- case ${c} in
- ${MARKERSROOT}/metadata)
- ;;
- ${MARKERSROOT}/locking)
- ;;
- ${MARKERSROOT}/lockdep)
- ;;
- *)
- for m in ${c}/*; do
- echo Disconnecting ${m}
- echo 0 > ${m}/enable
- done
- ;;
- esac
-done
-
-## Markers starting with "tap_" are considered high-speed.
-#echo Disconnecting high-rate markers to tap
-#MARKERS=`cat /proc/ltt|grep -v %k|awk '{print $2 " " $4}'|sort -u |grep ^tap`
-#
-##Uncomment the following to also stop recording lockdep events.
-##MARKERS=`cat /proc/ltt|grep -v %k|awk '{print $2}'|sort -u|grep -e ^tap_ -e ^lockdep`
-#
-#IFS=${N}
-#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>
- *
- * Copyright 2008 FUJITSU
- * Zhao Lei <zhaolei@cn.fujitsu.com>
- * Gui Jianfeng <guijianfeng@cn.fujitsu.com>
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <liblttctl/lttctl.h>
-#include <errno.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/wait.h>
-#include <unistd.h>
-#include <string.h>
-#include <limits.h>
-#define _GNU_SOURCE
-#include <getopt.h>
-
-#define OPT_MAX (1024)
-#define OPT_NAMELEN (256)
-#define OPT_VALSTRINGLEN (256)
-
-enum opt_type {
- CHANNEL,
-};
-
-struct channel_option {
- char chan_name[OPT_NAMELEN];
- int enable;
- int overwrite;
- int bufnum;
- int bufsize;
-};
-
-struct lttctl_option {
- union {
- struct channel_option chan_opt;
- } opt_mode;
- enum opt_type type;
- struct lttctl_option *next;
-};
-
-struct lttctl_option *opt_head, *last_opt;
-
-static int opt_create;
-static int opt_destroy;
-static int opt_start;
-static int opt_pause;
-static int opt_help;
-static const char *opt_transport;
-static const char *opt_write;
-static int opt_append;
-static unsigned int opt_dump_threads;
-static char channel_root_default[PATH_MAX];
-static const char *opt_channel_root;
-static const char *opt_tracename;
-
-/* Args :
- *
- */
-static void show_arguments(void)
-{
- printf("Linux Trace Toolkit Trace Control " VERSION"\n");
- printf("\n");
- printf("Usage: lttctl [OPTION]... [TRACENAME]\n");
- printf("\n");
- printf("Examples:\n");
- printf(" lttctl -c trace1 "
- "# Create a trace named trace1.\n");
- printf(" lttctl -s trace1 "
- "# start a trace named trace1.\n");
- printf(" lttctl -p trace1 "
- "# pause a trace named trace1.\n");
- printf(" lttctl -d trace1 "
- "# Destroy a trace named trace1.\n");
- printf(" lttctl -C -w /tmp/trace1 trace1 "
- "# Create a trace named trace1, start it and\n"
- " "
- "# write non-overwrite channels' data to\n"
- " "
- "# /tmp/trace1, debugfs must be mounted for\n"
- " "
- "# auto-find\n");
- printf(" lttctl -D -w /tmp/trace1 trace1 "
- "# Pause and destroy a trace named trace1 and\n"
- " "
- "# write overwrite channels' data to\n"
- " "
- "# /tmp/trace1, debugfs must be mounted for\n"
- " "
- "# auto-find\n");
- printf("\n");
- printf(" Basic options:\n");
- printf(" -c, --create\n");
- printf(" Create a trace.\n");
- printf(" -d, --destroy\n");
- printf(" Destroy a trace.\n");
- printf(" -s, --start\n");
- printf(" Start a trace.\n");
- printf(" -p, --pause\n");
- printf(" Pause a trace.\n");
- printf(" -h, --help\n");
- printf(" Show this help.\n");
- printf("\n");
- printf(" Advanced options:\n");
- printf(" --transport TRANSPORT\n");
- printf(" Set trace's transport. (ex. relay-locked or relay)\n");
- printf(" -o, --option OPTION\n");
- printf(" Set options, following operations are supported:\n");
- printf(" channel.<channelname>.enable=\n");
- printf(" channel.<channelname>.overwrite=\n");
- printf(" channel.<channelname>.bufnum=\n");
- printf(" channel.<channelname>.bufsize= (in bytes, rounded to "
- "next power of 2)\n");
- printf(" <channelname> can be set to all for all channels\n");
- printf("\n");
- printf(" Integration options:\n");
- printf(" -C, --create_start\n");
- printf(" Create and start a trace.\n");
- printf(" -D, --pause_destroy\n");
- printf(" Pause and destroy a trace.\n");
- printf(" -w, --write PATH\n");
- printf(" Path for write trace datas.\n");
- printf(" For -c, -C, -d, -D options\n");
- printf(" -a, --append\n");
- printf(" Append to trace, For -w option\n");
- printf(" -n, --dump_threads NUMBER\n");
- printf(" Number of lttd threads, For -w option\n");
- printf(" --channel_root PATH\n");
- printf(" Set channels root path, For -w option."
- " (ex. /mnt/debugfs/ltt)\n");
- printf("\n");
-}
-
-/*
- * Separate option name to 3 fields
- * Ex:
- * Input: name = channel.cpu.bufsize
- * Output: name1 = channel
- * name2 = cpu
- * name3 = bufsize
- * Ret: 0 on success
- * 1 on fail
- *
- * Note:
- * Make sure that name1~3 longer than OPT_NAMELEN.
- * name1~3 can be NULL to discard value
- *
- */
-static int separate_opt(const char *name, char *name1, char *name2, char *name3)
-{
- char *p;
-
- if (!name)
- return 1;
-
- /* segment1 */
- p = strchr(name, '.');
- if (!p)
- return 1;
- if (p - name >= OPT_NAMELEN)
- return 1;
- if (name1) {
- memcpy(name1, name, p - name);
- name1[p - name] = 0;
- }
- name = p + 1;
-
- /* segment2 */
- p = strchr(name, '.');
- if (!p)
- return 1;
- if (p - name >= OPT_NAMELEN)
- return 1;
- if (name2) {
- memcpy(name2, name, p - name);
- name2[p - name] = 0;
- }
- name = p + 1;
-
- /* segment3 */
- if (strlen(name) >= OPT_NAMELEN)
- return 1;
- if (name3)
- strcpy(name3, name);
-
- return 0;
-}
-
-static void init_channel_opt(struct channel_option *opt, char *opt_name)
-{
- if (opt && opt_name) {
- opt->enable = -1;
- opt->overwrite = -1;
- opt->bufnum = -1;
- opt->bufsize = -1;
- strcpy(opt->chan_name, opt_name);
- }
-}
-
-static struct lttctl_option *find_insert_channel_opt(char *opt_name)
-{
- struct lttctl_option *iter, *new_opt;
-
- if (!opt_head) {
- opt_head = (struct lttctl_option *)malloc(sizeof(struct lttctl_option));
- init_channel_opt(&opt_head->opt_mode.chan_opt, opt_name);
- opt_head->type = CHANNEL;
- opt_head->next = NULL;
- last_opt = opt_head;
- return opt_head;
- }
-
- for (iter = opt_head; iter; iter = iter->next) {
- if (iter->type != CHANNEL)
- continue;
- if (!strcmp(iter->opt_mode.chan_opt.chan_name, opt_name))
- return iter;
- }
-
- new_opt = (struct lttctl_option *)malloc(sizeof(struct lttctl_option));
- init_channel_opt(&new_opt->opt_mode.chan_opt, opt_name);
- new_opt->type = CHANNEL;
- new_opt->next = NULL;
- last_opt->next = new_opt;
- last_opt = new_opt;
- return new_opt;
-}
-
-int set_channel_opt(struct channel_option *opt, char *opt_name, char *opt_valstr)
-{
- int opt_val, ret;
-
- if (!strcmp("enable", opt_name)) {
- if (opt_valstr[1] != 0) {
- return -EINVAL;
- }
- if (opt_valstr[0] == 'Y' || opt_valstr[0] == 'y'
- || opt_valstr[0] == '1')
- opt_val = 1;
- else if (opt_valstr[0] == 'N' || opt_valstr[0] == 'n'
- || opt_valstr[0] == '0')
- opt_val = 0;
- else {
- return -EINVAL;
- }
-
- opt->enable = opt_val;
- return 0;
- } else if (!strcmp("overwrite", opt_name)) {
- if (opt_valstr[1] != 0) {
- return -EINVAL;
- }
- if (opt_valstr[0] == 'Y' || opt_valstr[0] == 'y'
- || opt_valstr[0] == '1')
- opt_val = 1;
- else if (opt_valstr[0] == 'N' || opt_valstr[0] == 'n'
- || opt_valstr[0] == '0')
- opt_val = 0;
- else {
- return -EINVAL;
- }
-
- opt->overwrite = opt_val;
- return 0;
-
- } else if (!strcmp("bufnum", opt_name)) {
- ret = sscanf(opt_valstr, "%d", &opt_val);
- if (ret != 1 || opt_val < 0) {
- return -EINVAL;
- }
-
- opt->bufnum = opt_val;
- return 0;
- } else if (!strcmp("bufsize", opt_name)) {
- ret = sscanf(opt_valstr, "%d", &opt_val);
- if (ret != 1 || opt_val < 0) {
- return -EINVAL;
- }
-
- opt->bufsize = opt_val;
- return 0;
- } else {
- return -EINVAL;
- }
-
-}
-
-static int parst_opt(const char *optarg)
-{
- int ret;
- char opt_name[OPT_NAMELEN * 3];
- char opt_valstr[OPT_VALSTRINGLEN];
- char *p;
-
- char name1[OPT_NAMELEN];
- char name2[OPT_NAMELEN];
- char name3[OPT_NAMELEN];
-
- int opt_intval;
- int opt_val;
- unsigned int opt_uintval;
- struct lttctl_option *opt;
-
- if (!optarg) {
- fprintf(stderr, "Option empty\n");
- return -EINVAL;
- }
-
- /* Get option name and val_str */
- p = strchr(optarg, '=');
- if (!p) {
- fprintf(stderr, "Option format error: %s\n", optarg);
- return -EINVAL;
- }
-
- if (p - optarg >= sizeof(opt_name)/sizeof(opt_name[0])) {
- fprintf(stderr, "Option name too long: %s\n", optarg);
- return -EINVAL;
- }
-
- if (strlen(p+1) >= OPT_VALSTRINGLEN) {
- fprintf(stderr, "Option value too long: %s\n", optarg);
- return -EINVAL;
- }
-
- memcpy(opt_name, optarg, p - optarg);
- opt_name[p - optarg] = 0;
- strcpy(opt_valstr, p+1);
-
- /* separate option name into 3 fields */
- ret = separate_opt(opt_name, name1, name2, name3);
- if (ret != 0) {
- fprintf(stderr, "Option name error1: %s\n", optarg);
- return -EINVAL;
- }
-
- if (!strcmp("channel", name1)) {
- opt = find_insert_channel_opt(name2);
- if ((ret = set_channel_opt(&opt->opt_mode.chan_opt,
- name3, opt_valstr) != 0)) {
- fprintf(stderr, "Option name error2: %s\n", optarg);
- return ret;
- }
- } else {
- fprintf(stderr, "Option name error3: %s\n", optarg);
- return -EINVAL;
- }
-
- return 0;
-}
-
-/* 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.
- */
-static int parse_arguments(int argc, char **argv)
-{
- int ret = 0;
-
- static struct option longopts[] = {
- {"create", no_argument, NULL, 'c'},
- {"destroy", no_argument, NULL, 'd'},
- {"start", no_argument, NULL, 's'},
- {"pause", no_argument, NULL, 'p'},
- {"help", no_argument, NULL, 'h'},
- {"transport", required_argument, NULL, 2},
- {"option", required_argument, NULL, 'o'},
- {"create_start", no_argument, NULL, 'C'},
- {"pause_destroy", no_argument, NULL, 'D'},
- {"write", required_argument, NULL, 'w'},
- {"append", no_argument, NULL, 'a'},
- {"dump_threads", required_argument, NULL, 'n'},
- {"channel_root", required_argument, NULL, 3},
- { NULL, 0, NULL, 0 },
- };
-
- /*
- * Enable all channels in default
- * To make novice users happy
- */
- parst_opt("channel.all.enable=1");
-
- opterr = 1; /* Print error message on getopt_long */
- while (1) {
- int c;
- c = getopt_long(argc, argv, "cdspho:CDw:an:", longopts, NULL);
- if (-1 == c) {
- /* parse end */
- break;
- }
- switch (c) {
- case 'c':
- opt_create = 1;
- break;
- case 'd':
- opt_destroy = 1;
- break;
- case 's':
- opt_start = 1;
- break;
- case 'p':
- opt_pause = 1;
- break;
- case 'h':
- opt_help = 1;
- break;
- case 2:
- if (!opt_transport) {
- opt_transport = optarg;
- } else {
- fprintf(stderr,
- "Please specify only 1 transport\n");
- return -EINVAL;
- }
- break;
- case 'o':
- ret = parst_opt(optarg);
- if (ret)
- return ret;
- break;
- case 'C':
- opt_create = 1;
- opt_start = 1;
- break;
- case 'D':
- opt_pause = 1;
- opt_destroy = 1;
- break;
- case 'w':
- if (!opt_write) {
- opt_write = optarg;
- } else {
- fprintf(stderr,
- "Please specify only 1 write dir\n");
- return -EINVAL;
- }
- break;
- case 'a':
- opt_append = 1;
- break;
- case 'n':
- if (opt_dump_threads) {
- fprintf(stderr,
- "Please specify only 1 dump threads\n");
- return -EINVAL;
- }
-
- ret = sscanf(optarg, "%u", &opt_dump_threads);
- if (ret != 1) {
- fprintf(stderr,
- "Dump threads not positive number\n");
- return -EINVAL;
- }
- break;
- case 3:
- if (!opt_channel_root) {
- opt_channel_root = optarg;
- } else {
- fprintf(stderr,
- "Please specify only 1 channel root\n");
- return -EINVAL;
- }
- break;
- case '?':
- return -EINVAL;
- default:
- break;
- };
- };
-
- /* Don't check args when user needs help */
- if (opt_help)
- return 0;
-
- /* Get tracename */
- if (optind < argc - 1) {
- fprintf(stderr, "Please specify only 1 trace name\n");
- return -EINVAL;
- }
- if (optind > argc - 1) {
- fprintf(stderr, "Please specify trace name\n");
- return -EINVAL;
- }
- opt_tracename = argv[optind];
-
- /*
- * Check arguments
- */
- if (!opt_create && !opt_start && !opt_destroy && !opt_pause) {
- fprintf(stderr,
- "Please specify a option of "
- "create, destroy, start, or pause\n");
- return -EINVAL;
- }
-
- if ((opt_create || opt_start) && (opt_destroy || opt_pause)) {
- fprintf(stderr,
- "Create and start conflict with destroy and pause\n");
- return -EINVAL;
- }
-
- if (opt_create) {
- if (!opt_transport)
- opt_transport = "relay";
- }
-
- if (opt_transport) {
- if (!opt_create) {
- fprintf(stderr,
- "Transport option must be combine with create"
- " option\n");
- return -EINVAL;
- }
- }
-
- if (opt_write) {
- if (!opt_create && !opt_destroy) {
- fprintf(stderr,
- "Write option must be combine with create or"
- " destroy option\n");
- return -EINVAL;
- }
-
- if (!opt_channel_root)
- if (getdebugfsmntdir(channel_root_default) == 0) {
- strcat(channel_root_default, "/ltt");
- opt_channel_root = channel_root_default;
- } else {
- fprintf(stderr,
- "Channel_root is necessary for -w"
- " option, but neither --channel_root"
- " option\n"
- "specified, nor debugfs's mount dir"
- " found, mount debugfs also failed\n");
- return -EINVAL;
- }
-
- if (opt_dump_threads == 0)
- opt_dump_threads = 1;
- }
-
- if (opt_append) {
- if (!opt_write) {
- fprintf(stderr,
- "Append option must be combine with write"
- " option\n");
- return -EINVAL;
- }
- }
-
- if (opt_dump_threads) {
- if (!opt_write) {
- fprintf(stderr,
- "Dump_threads option must be combine with write"
- " option\n");
- return -EINVAL;
- }
- }
-
- if (opt_channel_root) {
- if (!opt_write) {
- fprintf(stderr,
- "Channel_root option must be combine with write"
- " option\n");
- return -EINVAL;
- }
- }
-
- return 0;
-}
-
-static void show_info(void)
-{
- printf("Linux Trace Toolkit Trace Control " VERSION"\n");
- printf("\n");
- if (opt_tracename != NULL) {
- printf("Controlling trace : %s\n", opt_tracename);
- printf("\n");
- }
-}
-
-static int lttctl_channel_setup(struct channel_option *opt)
-{
- int ret;
-
- if (opt->enable != -1) {
- if ((ret = lttctl_set_channel_enable(opt_tracename,
- opt->chan_name,
- opt->enable)) != 0)
- return ret;
- }
- if (opt->overwrite != -1) {
- if ((ret = lttctl_set_channel_overwrite(opt_tracename,
- opt->chan_name,
- opt->overwrite)) != 0)
- return ret;
- }
- if (opt->bufnum != -1) {
- if ((ret = lttctl_set_channel_subbuf_num(opt_tracename,
- opt->chan_name,
- opt->bufnum)) != 0)
- return ret;
- }
- if (opt->bufsize != -1) {
- if ((ret = lttctl_set_channel_subbuf_size(opt_tracename,
- opt->chan_name,
- opt->bufsize)) != 0)
- return ret;
- }
-
- return 0;
-}
-
-static int lttctl_create_trace(void)
-{
- int ret;
- int i;
- struct lttctl_option *opt;
-
- ret = lttctl_setup_trace(opt_tracename);
- if (ret)
- goto setup_trace_fail;
-
- for (opt = opt_head; opt; opt = opt->next) {
- if (opt->type != CHANNEL)
- continue;
- ret = lttctl_channel_setup(&opt->opt_mode.chan_opt);
- if (ret)
- goto set_option_fail;;
- }
-
- ret = lttctl_set_trans(opt_tracename, opt_transport);
- if (ret)
- goto set_option_fail;
-
- ret = lttctl_alloc_trace(opt_tracename);
- if (ret)
- goto alloc_trace_fail;
-
- return 0;
-
-alloc_trace_fail:
-set_option_fail:
- lttctl_destroy_trace(opt_tracename);
-setup_trace_fail:
- return ret;
-}
-
-/*
- * Start a lttd daemon to write trace datas
- * Dump overwrite channels on overwrite!=0
- * Dump normal(non-overwrite) channels on overwrite=0
- *
- * ret: 0 on success
- * !0 on fail
- */
-static int lttctl_daemon(int overwrite)
-{
- pid_t pid;
- int status;
-
- pid = fork();
- if (pid < 0) {
- perror("Error in forking for lttd daemon");
- return errno;
- }
-
- if (pid == 0) {
- /* child */
- char *argv[16];
- int argc = 0;
- char channel_path[PATH_MAX];
- char thread_num[16];
-
- /* prog path */
- argv[argc] = getenv("LTT_DAEMON");
- if (argv[argc] == NULL)
- argv[argc] = PACKAGE_BIN_DIR "/lttd";
- argc++;
-
- /* -t option */
- argv[argc] = "-t";
- argc++;
- /*
- * we allow modify of opt_write's content in new process
- * for get rid of warning of assign char * to const char *
- */
- argv[argc] = (char *)opt_write;
- argc++;
-
- /* -c option */
- strcpy(channel_path, opt_channel_root);
- strcat(channel_path, "/");
- strcat(channel_path, opt_tracename);
- argv[argc] = "-c";
- argc++;
- argv[argc] = channel_path;
- argc++;
-
- /* -N option */
- sprintf(thread_num, "%u", opt_dump_threads);
- argv[argc] = "-N";
- argc++;
- argv[argc] = thread_num;
- argc++;
-
- /* -a option */
- if (opt_append) {
- argv[argc] = "-a";
- argc++;
- }
-
- /* -d option */
- argv[argc] = "-d";
- argc++;
-
- /* overwrite option */
- if (overwrite) {
- argv[argc] = "-f";
- argc++;
- } else {
- argv[argc] = "-n";
- argc++;
- }
-
- argv[argc] = NULL;
-
- execvp(argv[0], argv);
-
- perror("Error in executing the lttd daemon");
- exit(errno);
- }
-
- /* parent */
- if (waitpid(pid, &status, 0) == -1) {
- perror("Error in waitpid\n");
- return errno;
- }
-
- if (!WIFEXITED(status)) {
- fprintf(stderr, "lttd process interrupted\n");
- return status;
- }
-
- if (WEXITSTATUS(status))
- fprintf(stderr, "lttd process running failed\n");
-
- return WEXITSTATUS(status);
-}
-
-int main(int argc, char **argv)
-{
- int ret;
-
- ret = parse_arguments(argc, argv);
- /* If user needs show help, we disregard other options */
- if (opt_help) {
- show_arguments();
- return 0;
- }
-
- /* exit program if arguments wrong */
- if (ret)
- return 1;
-
- show_info();
-
- ret = lttctl_init();
- if (ret != 0)
- return ret;
-
- if (opt_create) {
- printf("lttctl: Creating trace\n");
- ret = lttctl_create_trace();
- if (ret)
- goto op_fail;
-
- if (opt_write) {
- printf("lttctl: Forking lttd\n");
- ret = lttctl_daemon(0);
- if (ret)
- goto op_fail;
- }
- }
-
- if (opt_start) {
- printf("lttctl: Starting trace\n");
- ret = lttctl_start(opt_tracename);
- if (ret)
- goto op_fail;
- }
-
- if (opt_pause) {
- printf("lttctl: Pausing trace\n");
- ret = lttctl_pause(opt_tracename);
- if (ret)
- goto op_fail;
- }
-
- if (opt_destroy) {
- if (opt_write) {
- printf("lttctl: Forking lttd\n");
- ret = lttctl_daemon(1);
- if (ret)
- goto op_fail;
- }
-
- printf("lttctl: Destroying trace\n");
- ret = lttctl_destroy_trace(opt_tracename);
- if (ret)
- goto op_fail;
- }
-
-op_fail:
- lttctl_destroy();
-
- 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 <sys/inotify.h>
-#if 0 /* should now be provided by libc. */
-/* 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);
-}
-#endif //0
-#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;
-};
-
-static __thread int thread_pipe[2];
-
-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;
-static int verbose_mode = 0;
-
-#define printf_verbose(fmt, args...) \
- do { \
- if (verbose_mode) \
- printf(fmt, ##args); \
- } while (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("-v Verbose mode.\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;
- case 'v':
- verbose_mode = 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_verbose("Skipping normal channel %s\n",
- path_channel);
- return 0;
- }
- } else {
- if(dump_normal_only) {
- printf_verbose("Skipping flight channel %s\n",
- path_channel);
- return 0;
- }
- }
- printf_verbose("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_verbose("Appending to file %s as requested\n",
- path_trace);
-
- fd_pairs->pair[fd_pairs->num_pairs-1].trace =
- open(path_trace, O_WRONLY,
- S_IRWXU|S_IRWXG|S_IRWXO);
- if(fd_pairs->pair[fd_pairs->num_pairs-1].trace == -1) {
- perror(path_trace);
- }
- ret = lseek(fd_pairs->pair[fd_pairs->num_pairs-1].trace,
- 0, SEEK_END);
- if (ret < 0) {
- 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_verbose("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_verbose("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_verbose("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_verbose("Channel file : %s\n", path_channel);
-
- if(S_ISDIR(stat_buf.st_mode)) {
-
- printf_verbose("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;
- long ret;
- unsigned long len;
- off_t offset;
-
-
- err = ioctl(pair->channel, RELAY_GET_SUBBUF, &consumed_old);
- printf_verbose("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;
- }
-#if 0
- 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;
- }
-#endif //0
- len = pair->subbuf_size;
- offset = 0;
- while (len > 0) {
- printf_verbose("splice chan to pipe offset %lu\n",
- (unsigned long)offset);
- ret = splice(pair->channel, &offset, thread_pipe[1], NULL,
- len, SPLICE_F_MOVE);
- printf_verbose("splice chan to pipe ret %ld\n", ret);
- if (ret < 0) {
- perror("Error in relay splice");
- goto write_error;
- }
- ret = splice(thread_pipe[0], NULL, pair->trace, NULL,
- ret, SPLICE_F_MOVE);
- printf_verbose("splice pipe to file %ld\n", ret);
- if (ret < 0) {
- perror("Error in file splice");
- goto write_error;
- }
- len -= ret;
- }
-
-#if 0
- err = fsync(pair->trace);
- if(err < 0) {
- ret = errno;
- perror("Error in writing to file");
- goto write_error;
- }
-#endif //0
-write_error:
- ret = 0;
- 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;
- }
- }
-
-#if 0
- /* 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;
- }
-
-#endif //0
-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;
-
-#if 0
- err_ret = munmap(pair->mmap, pair->subbuf_size * pair->n_subbufs);
- if(err_ret != 0) {
- perror("Error in munmap");
- }
- ret |= err_ret;
-#endif //0
- 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_verbose(
- "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_verbose("Data received\n");
-#ifdef HAS_INOTIFY
- switch(pollfd[0].revents) {
- case POLLERR:
- printf_verbose(
- "Error returned in polling inotify fd %d.\n",
- pollfd[0].fd);
- break;
- case POLLHUP:
- printf_verbose(
- "Polling inotify fd %d tells it has hung up.\n",
- pollfd[0].fd);
- break;
- case POLLNVAL:
- printf_verbose(
- "Polling inotify fd %d tells fd is not open.\n",
- pollfd[0].fd);
- break;
- case POLLPRI:
- case POLLIN:
- printf_verbose(
- "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_verbose(
- "Error returned in polling fd %d.\n",
- pollfd[i].fd);
- num_hup++;
- break;
- case POLLHUP:
- printf_verbose(
- "Polling fd %d tells it has hung up.\n",
- pollfd[i].fd);
- num_hup++;
- break;
- case POLLNVAL:
- printf_verbose(
- "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_verbose(
- "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_verbose(
- "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 = pipe(thread_pipe);
- if (ret < 0) {
- perror("Error creating pipe");
- return (void*)ret;
- }
- ret = read_channels(thread_num, &fd_pairs, inotify_fd, &inotify_watch_array);
- close(thread_pipe[0]); /* close read end */
- close(thread_pipe[1]); /* close write end */
- 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 (fd_pairs.num_pairs == 0) {
- printf("No channel available for reading, exiting\n");
- ret = -ENOENT;
- 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();
-
- /* 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;
-
- if(daemon_mode) {
- ret = daemon(0, 0);
-
- if(ret == -1) {
- perror("An error occured while daemonizing.");
- exit(-1);
- }
- }
-
- 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
