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