cairo/util/cairo-trace/cairo-trace.in

#!/bin/sh

prefix=@prefix@
exec_prefix=@exec_prefix@

nofile=
flush=
nocallers=

usage() {
cat << EOF
usage: cairo-trace [--no-file] command
cairo-trace will generate a log of all calls made by command to
cairo. This log will be stored in a file in the local directory
called command.pid.trace.
Whatever else happens is driven by its argument:
  --flush      - Flush the output trace after every call.
  --no-file    - Disable the creation of an output file. Outputs to the
                 terminal instead.
  --no-callers - Do not lookup the caller address/symbol/line whilst tracing.

Enviroment variables understood by cairo-trace:
  CAIRO_TRACE_FLUSH - flush the output after every function call.
  CAIRO_TRACE_LINE_INFO - emit line information for most function calls.
EOF
exit
}

skip=1
while test $skip -eq 1; do
    skip=0
    case $1 in
    --flush)
	skip=1
	flush=1
	;;
    --no-file)
	skip=1
	nofile=1
	;;
    --no-callers)
	skip=1
	nocallers=1
	;;
    --version)
	echo "cairo-trace, version @CAIRO_VERSION_MAJOR@.@CAIRO_VERSION_MINOR@.@CAIRO_VERSION_MICRO@."
	exit
	;;
    --help)
	usage
	;;
    esac
    if test $skip -eq 1; then
	shift
    fi
done

if test $# -eq 0; then
    usage
fi

#echo $*

LD_PRELOAD=@libdir@/cairo/cairo-trace.so 
export LD_PRELOAD

if test -n "$nocallers"; then
    CAIRO_TRACE_LINE_INFO=0
    export CAIRO_TRACE_LINE_INFO
fi

if test -n "$flush"; then
    CAIRO_TRACE_FLUSH=1
    export CAIRO_TRACE_FLUSH
fi

if test -z "$nofile"; then
    CAIRO_TRACE_OUTDIR=. "$@"
else
    CAIRO_TRACE_FD=3 "$@" 3>&1 >/dev/null
fi