-#!/bin/bash
+#!/bin/sh
-USTD="./ustd/ustd"
-LIBINTERFORK="./libinterfork/.libs/libinterfork.so"
+# usttrace by Pierre-Marc Fournier 2009
+# Distributed under the GPLv2.
-BASE_TRACE_DIR="$HOME/.usttraces"
+error() {
+ echo "$0: error: $1" 1>&2
+}
+
+sighandler() {
+ echo "Caught Ctrl-C"
+ if [ -z "${UST_CONSUMERD_PID}" ]; then
+ UST_CONSUMERD_PID=`cat $pidfilepath`
+ fi
+ # Tell the daemon to die
+ kill -TERM "${UST_CONSUMERD_PID}"
+
+ echo "Waiting for ust-consumerd to shutdown..."
+ wait "${UST_CONSUMERD_PID}"
-function usage () {
- echo "usage: $0 COMMAND" 2>/dev/stderr
+ rm "$pidfilepath"
+
+ exit 0;
}
-function error() {
- echo "$0: error: $1" 2>/dev/stderr
+USTTRACE_DIR="$(dirname $0)"
+if [ -x "${USTTRACE_DIR}/ust-consumerd/ust-consumerd" ] ; then
+ # Use the not installed libraries instead
+ UST_CONSUMERD="${USTTRACE_DIR}/ust-consumerd/ust-consumerd"
+ LIBINTERFORK_PATH="${USTTRACE_DIR}/libustfork/.libs/libustfork.so"
+ LIBMALLOCWRAP_PATH="${USTTRACE_DIR}/libustinstr-malloc/.libs/libustinstr-malloc.so"
+ LIBUST_PATH="${USTTRACE_DIR}/libust/.libs/libust.so"
+else
+ # Use the libraries that the dynamic link finds
+ UST_CONSUMERD="ust-consumerd"
+ if [ ! -x "$(which ust-consumerd 2>/dev/null)" ]; then
+ error "cannot find an executable ust-consumerd; make sure its location is in the PATH"
+ exit 1
+ fi
+ LIBINTERFORK_PATH="libustfork.so"
+ LIBMALLOCWRAP_PATH="libustinstr-malloc.so"
+ LIBUST_PATH="libust.so.0"
+fi
+
+BASE_TRACE_DIR="${HOME}/.usttraces"
+
+usage() {
+ echo "usage: $0 OPTIONS COMMAND" 1>&2
+ echo "" 1>&2
+ echo "Options:" 1>&2
+ echo " -l Runtime link with UST library." 1>&2
+ echo " (Needed only if program was not linked at compile time with libust.)" 1>&2
+ echo " -L Add path to ust libraries to LD_LIBRARY_PATH." 1>&2
+ echo " -m Instrument malloc calls." 1>&2
+ echo " -f Also trace forked processes." 1>&2
+ echo " -s Use system-wide daemon instead of creating one for this session." 1>&2
+ echo " -S Specify the subbuffer size." 1>&2
+ echo " -N Specify the number of subbuffers." 1>&2
+ echo " -o Output directory of the trace." 1>&2
}
-# Prepare vars
-CMD=$1
+while getopts ":hlLmfsWS:N:o:" options; do
+ case $options in
+ l) arg_preload_libust=1;;
+ L) arg_ld_std_ust=1;;
+ m) arg_preload_malloc=1;;
+ f) arg_preload_fork=1;;
+ s) arg_syswide_daemon=1;;
+ W) where=1;;
+ S) export UST_SUBBUF_SIZE=$OPTARG;;
+ N) export UST_SUBBUF_NUM=$OPTARG;;
+ o) OUTPUT_DIR=$OPTARG;;
+ h) usage;
+ exit 0;;
+ \?) usage
+ exit 1;;
+ *) usage
+ exit 1;;
+ esac
+done
+shift $(($OPTIND - 1))
+
+if [ -n "$where" ]; then
+ echo $BASE_TRACE_DIR/$(ls "$BASE_TRACE_DIR" | tail -n 1)
+ exit 0
+fi
# Validate input
if [ -z "$HOME" ];
error "no home specified"
fi
-if [ -z "$CMD" ];
+if [ -z "$*" ];
then
error "no command specified"
usage;
fi
# Create directory for trace output
-DATESTRING="$(hostname)-$(date +%Y%m%d%H%M%S)"
-OUTDIR="$BASE_TRACE_DIR/$DATESTRING"
-mkdir -p "$OUTDIR"
+if [ -n "$OUTPUT_DIR" ]; then
+ OUTDIR=$OUTPUT_DIR
+else
+ DATESTRING="$(hostname)-$(date +%Y%m%d%H%M%S%N)"
+ OUTDIR="$BASE_TRACE_DIR/$DATESTRING"
+fi
+
+# Check if directory exist
+if [ ! -d "$OUTDIR" ]; then
+ mkdir -p $OUTDIR
+ if [ $? -eq 1 ]; then
+ exit 1
+ fi
+fi
-# Choose socket path
-SOCKPATH="/tmp/ust-sock-$$"
+# Choose ust-consumerd socket path
+UST_CONSUMERD_SOCKPATH="/tmp/ust-consumerd-sock-$$"
-# Start daemon
-$USTD -s "$SOCKPATH" -o "$OUTDIR" >"$OUTDIR/ustd.log" 2>&1 &
-USTDPID=$!
+if [ "$arg_syswide_daemon" != "1" ];
+then
+ pidfilepath="/tmp/usttrace-$USER-$(date +%Y%m%d%H%M%S%N)-ust-consumerd-pid"
+ trap "sighandler $pidfilepath" INT
+ mkfifo -m 0600 "$pidfilepath"
+ # Start daemon
+ ${UST_CONSUMERD} --pidfile "$pidfilepath" -s "${UST_CONSUMERD_SOCKPATH}" -o "$OUTDIR" >"$OUTDIR/ust-consumerd.log" 2>&1 &
+ # ust-consumerd sets up its server socket
+ # ust-consumerd opens the pidfile, blocks because no one has opened it
+ # we open pidfile
+ # we block reading pidfile
+ # ust-consumerd writes to pidfile
+ # ust-consumerd closes pidfile
+ # we unblock reading pidfile
+ UST_CONSUMERD_PID=`cat $pidfilepath`
+ export UST_DAEMON_SOCKET="${UST_CONSUMERD_SOCKPATH}"
+fi
# Establish the environment for the command
-export UST_TRACE=1
-export UST_AUTOPROBE=1
-export UST_DAEMON_SOCKET="$SOCKPATH"
+(
+ export UST_TRACE=1
+ export UST_AUTOPROBE=1
+
+ if [ "$arg_preload_libust" = "1" ];
+ then
+ if [ -n "${LIBUST_PATH%libust.so}" ];
+ then
+ if [ -n "$LD_LIBRARY_PATH" ];
+ then
+ export LD_LIBRARY_PATH="$LD_LIBRARY_PATH:${LIBUST_PATH%libust.so}"
+ else
+ export LD_LIBRARY_PATH="${LIBUST_PATH%libust.so}"
+ fi
+ fi
+ if [ -n "$LIBUST_PATH" ];
+ then
+ if [ -n "$LD_PRELOAD" ];
+ then
+ export LD_PRELOAD="$LD_PRELOAD:$LIBUST_PATH"
+ else
+ export LD_PRELOAD="$LIBUST_PATH"
+ fi
+ fi
+ fi
+
+ if [ "$arg_ld_std_ust" = "1" ] && [ -n "${LIBUST_PATH%libust.so}" ];
+ then
+ if [ -n "$LD_LIBRARY_PATH" ];
+ then
+ export LD_LIBRARY_PATH="$LD_LIBRARY_PATH:${LIBUST_PATH%libust.so}"
+ else
+ export LD_LIBRARY_PATH="${LIBUST_PATH%libust.so}"
+ fi
+ fi
+
+ if [ "$arg_preload_malloc" = "1" ] && [ -n "$LIBMALLOCWRAP_PATH" ];
+ then
+ if [ -n "$LD_PRELOAD" ];
+ then
+ export LD_PRELOAD="$LD_PRELOAD:$LIBMALLOCWRAP_PATH"
+ else
+ export LD_PRELOAD="$LIBMALLOCWRAP_PATH"
+ fi
+ fi
+
+ if [ "$arg_preload_fork" = "1" ] && [ -n "$LIBINTERFORK_PATH" ];
+ then
+ if [ -n "$LD_PRELOAD" ];
+ then
+ export LD_PRELOAD="$LD_PRELOAD:$LIBINTERFORK_PATH"
+ else
+ export LD_PRELOAD="$LIBINTERFORK_PATH"
+ fi
+ fi
# Execute the command
-bash -c "$CMD"
+ "$@" 2>&1
+) | tee "$OUTDIR/app.log"
## Because of the keepalive mechanism, we're sure that by the time
## we get here, the daemon is connected to all the buffers that still exist.
## Therefore we can politely ask it to die when it's done.
-kill -SIGTERM "$USTDPID"
+if [ "$arg_syswide_daemon" != "1" ];
+then
+ # Tell the daemon to die
+ kill -TERM "${UST_CONSUMERD_PID}"
+
+ echo "Waiting for ust-consumerd to shutdown..."
+ wait "${UST_CONSUMERD_PID}"
+
+ rm "$pidfilepath"
+fi
-# Tell the daemon to die
-echo "Waiting for ustd to shutdown..."
-wait "$USTDPID"
+echo "Trace was output in: " $OUTDIR
projects / ust.git / blobdiff