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) 2015-2018 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 CC_ARCH_FLAG=$2
  34 PARSER_FILE=$3
  35
  36 READELF="${READELF:-readelf}"
  37 CC="${CC-gcc}"
  38 CFLAGS="$CFLAGS -gdwarf-2 -c"
  39 CPP="${CPP-$CC -E}"
  40 CPPFLAGS="$CPPFLAGS -MM -MG"
  41
  42 VAR_NAME='mpers_target_var'
  43 BITS_DIR="mpers-${ARCH_FLAG}"
  44
  45 mkdir -p ${BITS_DIR}
  46 set -- $(sed -r -n \
  47         's/^#[[:space:]]*include[[:space:]]+DEF_MPERS_TYPE\(([^)[:space:]]*)\)$/\1/p' \
  48                 "${PARSER_FILE}")
  49 for m_type; do
  50         f_h="${BITS_DIR}/${m_type}.h"
  51         f_c="${BITS_DIR}/${m_type}.c"
  52         f_i="${BITS_DIR}/${m_type}.i"
  53         f_o="${BITS_DIR}/${m_type}.o"
  54         f_d1="${BITS_DIR}/${m_type}.d1"
  55         f_d2="${BITS_DIR}/${m_type}.d2"
  56         sed -e '
  57                 /DEF_MPERS_TYPE('"${m_type}"')$/n
  58                 /DEF_MPERS_TYPE/d
  59                 /^[[:space:]]*#[[:space:]]*include[[:space:]]*"xlat\//d
  60                 /^#[[:space:]]*include[[:space:]][[:space:]]*MPERS_DEFS$/ {s//'"${m_type} ${VAR_NAME}"';/;q}
  61                 ' "${PARSER_FILE}" > "${f_c}"
  62         $CPP $CPPFLAGS "${f_c}" > "${f_i}"
  63         grep -F -q "${m_type}.h" "${f_i}" ||
  64                 continue
  65         sed -i -e '/DEF_MPERS_TYPE/d' "${f_c}"
  66         $CC $CFLAGS $CC_ARCH_FLAG "${f_c}" -o "${f_o}"
  67         $READELF --debug-dump=info "${f_o}" > "${f_d1}"
  68         sed -r -n '
  69                 /^[[:space:]]*<1>/,/^[[:space:]]*<1><[^>]+>: Abbrev Number: 0/!d
  70                 /^[[:space:]]*<[^>]*><[^>]*>: Abbrev Number: 0/d
  71                 s/^[[:space:]]*<[[:xdigit:]]+>[[:space:]]+//
  72                 s/^[[:space:]]*((<[[:xdigit:]]+>){2}):[[:space:]]+/\1\n/
  73                 s/[[:space:]]+$//
  74                 p' "${f_d1}" > "${f_d2}"
  75         gawk -v VAR_NAME="$VAR_NAME" -v ARCH_FLAG="${ARCH_FLAG}" \
  76                 -f "$MPERS_AWK" "${f_d2}" > "${f_h}"
  77 done