IABSD.fr/src/usr.bin/ctfconv/ctfstrip

Branch : - branch - master - tag -

• Show log

  Commit

• Author : mpi
  Date : 2019-10-15 10:27:25
  Hash : fa44dea1
  Message : Include the .SUNW_ctf section in bsd.gdb Once the section has been built from the DWARF symbols also add it to the debug kernel. That makes ddb(4) print the correct number of args in function backtraces in such kernel as well. While here make comment fit in 80 columns. ok jasper@

• usr.bin/ctfconv/ctfstrip

• #!/bin/sh
  #
  # $OpenBSD: ctfstrip,v 1.12 2019/10/15 10:27:25 mpi Exp $
  #
  # Copyright (c) 2017 Martin Pieuchot
  #
  # Permission to use, copy, modify, and distribute this software for any
  # purpose with or without fee is hereby granted, provided that the above
  # copyright notice and this permission notice appear in all copies.
  #
  # THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  # WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  
  set -o posix
  
  cleanup() {
  	rm -f ${TMPFILE}
  	exit 1
  }
  
  usage() {
  	echo "usage: $(basename $0) [-S] [-o outfile] file" >&2
  	exit 1
  }
  
  trap "cleanup" 1 2 3 13 15
  
  while getopts So: opt; do
  	case $opt in
  		S)	STRIPFLAG=-g;;
  		o)	OUTFILE="$OPTARG";;
  		\?)	usage;;
  	esac
  done
  
  shift $((OPTIND - 1))
  
  if [ $# -ne 1 ]; then
  	usage
  fi
  
  INFILE="$1"
  LABEL="unknown"
  TMPFILE=$(mktemp /tmp/.ctf.XXXXXXXXXX)
  
  # Extract kernel version
  if [ -z "${INFILE##bsd*}" ]; then
  	LABEL=`what "$INFILE" | sed -n '$s/^   //p'`
  fi
  
  # If ctfstrip was passed a file that lacks useful debug sections, ctfconv will
  # fail.  So try to run ctfconv and silently fallback to plain strip(1) if that
  # failed.
  ctfconv -o ${TMPFILE} -l "${LABEL}" "${INFILE}" 2> /dev/null
  
  if [ $? -eq 0 ]; then
  	objcopy  ${STRIPFLAG} \
  		--add-section .SUNW_ctf=${TMPFILE} "${INFILE}" ${OUTFILE}
  
  	# Also add CTF data to the debug kernel
  	if [ -z "${INFILE##bsd.gdb}" ]; then
  		objcopy --add-section .SUNW_ctf=${TMPFILE} "${INFILE}"
  	fi
  else
  	strip ${STRIPFLAG} ${OUTFILE:+"-o${OUTFILE}"} "${INFILE}"
  fi
  
  rm -f ${TMPFILE}