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      1 #!/bin/sh -e
      2 #
      3 # Copyright (c) 2015 Elvira Khabirova <lineprinter0 (at] 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
     78