granicus.if.org Git - strace/blob - mpers.sh

   1 #!/bin/sh -e
   2 #
   3 # Copyright (c) 2015 Elvira Khabirova <lineprinter0@gmail.com>
   4 # Copyright (c) 2015-2017 The strace developers.
   5 # All rights reserved.
   6 #
   7 # Redistribution and use in source and binary forms, with or without
   8 # modification, are permitted provided that the following conditions
   9 # are met:
  10 # 1. Redistributions of source code must retain the above copyright
  11 #    notice, this list of conditions and the following disclaimer.
  12 # 2. Redistributions in binary form must reproduce the above copyright
  13 #    notice, this list of conditions and the following disclaimer in the
  14 #    documentation and/or other materials provided with the distribution.
  15 # 3. The name of the author may not be used to endorse or promote products
  16 #    derived from this software without specific prior written permission.
  17 #
  18 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  19 # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  20 # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  21 # IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  22 # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  23 # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  24 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  25 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  26 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  27 # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28
  29 export LC_ALL=C
  30
  31 MPERS_AWK="${0%/*}/mpers.awk"
  32 ARCH_FLAG=$1
  33 PARSER_FILE=$2
  34
  35 CC="${CC-gcc}"
  36 CFLAGS="$CFLAGS -gdwarf-2 -c"
  37 CPP="${CPP-$CC -E}"
  38 CPPFLAGS="$CPPFLAGS -MM -MG"
  39
  40 VAR_NAME='mpers_target_var'
  41 BITS_DIR="mpers${ARCH_FLAG}"
  42
  43 mkdir -p ${BITS_DIR}
  44 set -- $(sed -r -n \
  45         's/^#[[:space:]]*include[[:space:]]+DEF_MPERS_TYPE\(([^)[:space:]]*)\)$/\1/p' \
  46                 "${PARSER_FILE}")
  47 for m_type; do
  48         f_h="${BITS_DIR}/${m_type}.h"
  49         f_c="${BITS_DIR}/${m_type}.c"
  50         f_i="${BITS_DIR}/${m_type}.i"
  51         f_o="${BITS_DIR}/${m_type}.o"
  52         f_d1="${BITS_DIR}/${m_type}.d1"
  53         f_d2="${BITS_DIR}/${m_type}.d2"
  54         sed -e '
  55                 /DEF_MPERS_TYPE('"${m_type}"')$/n
  56                 /DEF_MPERS_TYPE/d
  57                 /^[[:space:]]*#[[:space:]]*include[[:space:]]*"xlat\//d
  58                 /^#[[:space:]]*include[[:space:]][[:space:]]*MPERS_DEFS$/ {s//'"${m_type} ${VAR_NAME}"';/;q}
  59                 ' "${PARSER_FILE}" > "${f_c}"
  60         $CPP $CPPFLAGS "${f_c}" > "${f_i}"
  61         grep -F -q "${m_type}.h" "${f_i}" ||
  62                 continue
  63         sed -i -e '/DEF_MPERS_TYPE/d' "${f_c}"
  64         $CC $CFLAGS $ARCH_FLAG "${f_c}" -o "${f_o}"
  65         readelf --debug-dump=info "${f_o}" > "${f_d1}"
  66         sed -r -n '
  67                 /^[[:space:]]*<1>/,/^[[:space:]]*<1><[^>]+>: Abbrev Number: 0/!d
  68                 /^[[:space:]]*<[^>]*><[^>]*>: Abbrev Number: 0/d
  69                 s/^[[:space:]]*<[[:xdigit:]]+>[[:space:]]+//
  70                 s/^[[:space:]]*((<[[:xdigit:]]+>){2}):[[:space:]]+/\1\n/
  71                 s/[[:space:]]+$//
  72                 p' "${f_d1}" > "${f_d2}"
  73         gawk -v VAR_NAME="$VAR_NAME" -v ARCH_FLAG="${ARCH_FLAG#-}" \
  74                 -f "$MPERS_AWK" "${f_d2}" > "${f_h}"
  75 done