#! /bin/bash

#

# Copyright (c) 2015-2017, Intel Corporation

#

# Redistribution and use in source and binary forms, with or without

# modification, are permitted provided that the following conditions are met:

#

#  * Redistributions of source code must retain the above copyright notice,

#    this list of conditions and the following disclaimer.

#  * Redistributions in binary form must reproduce the above copyright notice,

#    this list of conditions and the following disclaimer in the documentation

#    and/or other materials provided with the distribution.

#  * Neither the name of Intel Corporation nor the names of its contributors

#    may be used to endorse or promote products derived from this software

#    without specific prior written permission.

#

# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"

# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE

# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

# POSSIBILITY OF SUCH DAMAGE.

set -e

prog=`basename $0`

usage() {

    cat <

usage: $prog [<options>] <perf.data-file>

Scan the perf data file for MMAP records and print ptxed options for

constructing a corresponding image.

<perf.data-file> defaults to perf.data.

EOF

}

if [[ $# == 0 ]]; then

    file="perf.data"

elif [[ $# == 1 ]]; then

    file="$1"

    shift

else

    usage

    exit 1

fi

perf script --no-itrace -i "$file" -D | gawk -F' ' -- '

  function handle_mmap(file, vaddr) {

    if (match(file, /\[.*\]/) != 0) {

      # ignore 'virtual' file names like [kallsyms]

    }

    else if (match(file, /\.ko$/) != 0) {

      # ignore kernel objects

      #

      # use /proc/kcore

    }

    else {

      printf(" --elf %s:0x%x", file, vaddr)

    }

  }

  /PERF_RECORD_MMAP / {

    vaddr = strtonum(substr($5, 2))

    file = $9

    handle_mmap(file, vaddr)

  }

  /PERF_RECORD_MMAP2 / {

    vaddr = strtonum(substr($5, 2))

    file = $12

    handle_mmap(file, vaddr)

  }

'