1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180
|
#!/bin/bash
# ===========================================================================
#
# PUBLIC DOMAIN NOTICE
# National Center for Biotechnology Information
#
# This software/database is a "United States Government Work" under the
# terms of the United States Copyright Act. It was written as part of
# the author's official duties as a United States Government employee and
# thus cannot be copyrighted. This software/database is freely available
# to the public for use. The National Library of Medicine and the U.S.
# Government have not placed any restriction on its use or reproduction.
#
# Although all reasonable efforts have been taken to ensure the accuracy
# and reliability of the software and data, the NLM and the U.S.
# Government do not and cannot warrant the performance or results that
# may be obtained by using this software or data. The NLM and the U.S.
# Government disclaim all warranties, express or implied, including
# warranties of performance, merchantability or fitness for any particular
# purpose.
#
# Please cite the author in any work or product based on this material.
#
# ===========================================================================
# libexists.sh: test whether one of the given libraries defines all of the specified external names
# Usage:
# bash libexists.sh OS ARCH CC LD CC_SH LD_SH [-L dir ] [-X dir] [-o dir] [-l lib] [-s lib] [-d lib] [-v] extName1 [ extName2 ... ]
# Parameters:
# OS : linux/mac/win
# ARCH : i386/x86_64
# CC : compiler command
# LD : link command
# CC_SH : compile script
# LD_SH : link script
# extName1, ... - external names to find in libraries
# Options:
# -L, -X : library directories
# -o : directory for intermediate files
# -l, -d : libraries to search (shared or static)
# -s : libraries to search (static)
# -v : verbose mode
# Environment:
# requires an ?? OS.ARCH.sh file in the script's directory
# Return: 0 if found, the library's name is on stdout
# 1 not found
# -1 bad arguments
#
BUILD_DIR="$(dirname $0)"
# os
OS="$1";shift
# architecture
ARCH="$1";shift
# compiler
CC="$1";shift 1
# linker
LD="$1";shift
# compile script
CC_SH="$1";shift
# link script
LD_SH="$1";shift
# message prefix for verbose mode
dbgPref="**$(basename $0): "
# parse parameters
cOpts=
libs=
verbose="false"
outDir="."
while getopts L:X:l:s:d:vo: o
do case "$o" in
L|X) cOpts="${cOpts} -L$OPTARG";libPath="${libPath}:${OPTARG}";;
l|d) libs="${libs} l$OPTARG";;
s) libs="${libs} s$OPTARG";;
o) outDir="$OPTARG";;
v) verbose="true";;
[?]) printf >&2 "Usage: $0 [-L dir ] [-X dir] [-o dir] [-l lib] [-s lib] [-d lib] [-v] extName1 [ extName2 ... ]"
exit -1;;
esac
done
libPath="${outDir}${libPath}"
shift $((OPTIND - 1))
if [ $verbose == "true" ]
then
printf >&2 "${dbgPref}OS ='%s'\n" "$OS"
printf >&2 "${dbgPref}ARCH ='%s'\n" "$ARCH"
printf >&2 "${dbgPref}CC ='%s'\n" "$CC"
printf >&2 "${dbgPref}LD ='%s'\n" "$LD"
printf >&2 "${dbgPref}CC_SH ='%s'\n" "$CC_SH"
printf >&2 "${dbgPref}LD_SH ='%s'\n" "$LD_SH"
printf >&2 "${dbgPref}cOpts ='%s'\n" "$cOpts"
printf >&2 "${dbgPref}libs ='%s'\n" "$libs"
printf >&2 "${dbgPref}verbose ='%s'\n" $verbose
printf >&2 "${dbgPref}outDir ='%s'\n" $outDir
fi
## create a C program referencing all the external names
srcFile="${outDir}/libexists.c"
objFile="${outDir}/libexists.o"
exeFile="${outDir}/libexists"
echo "" >${srcFile}
for fn in $*
do #declare
echo "extern void ${fn}(void);" >>${srcFile}
done
echo "int main( int argc, char *argv [] ){" >>${srcFile}
echo "if (argc < 0 ) { " >>${srcFile}
for fn in $*
do
echo " ${fn}();" >>${srcFile}
done
echo "} return 0;} int wmain(int argc, char *argv []) { return main(argc,argv); }" >>${srcFile}
if [ $verbose == "true" ]
then
echo "${dbgPref}created ${srcFile}:" >&2
cat ${srcFile} >&2
fi
##
## compile
compile="${BUILD_DIR}/$CC_SH $OS $CC -c -o ${objFile} ${srcFile}"
if [ $verbose == "true" ]
then
echo "${dbgPref}${compile}" >&2
fi
compileRes=$($compile)
if [ $verbose == "true" ]
then
echo "${dbgPref}${compileRes}" >&2
fi
##
#try to link with all specified libraries until successful
LD_LIBRARY_PATH=${libPath}:$LD_LIBRARY_PATH; export LD_LIBRARY_PATH
rc=1
for lib in $libs
do
pref=${lib:0:1}
lib=${lib:1}
if [ $pref == "s" ]
then
link="${BUILD_DIR}/$LD_SH $OS $ARCH $LD --static --exe ${cOpts} -l$lib -o${exeFile} --objx o ${objFile}"
else
link="${BUILD_DIR}/$LD_SH $OS $ARCH $LD --exe ${cOpts} -l$lib -o${exeFile} --objx o ${objFile}"
fi
if [ $verbose == "true" ]
then
echo ${dbgPref} "$link" >&2
fi
linkRes=$($link 2>/dev/null)
linkRc=$?
if [ $verbose == "true" ]
then
echo ${dbgPref} "$linkRes" >&2
fi
if [ $linkRc == 0 ]
then
${exeFile} 2>/dev/null
if [ $? == 0 ]
then
# Success: RC=0, found library's name to stdout
rc=0
echo $lib
break
fi
fi
done
#clean up
rm -f ${srcFile} ${objFile} ${exeFile}
exit $rc
|