fpc/packages/gdbint/gen-gdblib-inc.sh

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#!/usr/bin/env bash
# Function to display help
usage ()
{
echo "Script used to easily create collection of libraries needed"
echo "to generate a Free Pascal IDE with debugger support."
echo "Usage: Copy this script to the directory where you just compile"
echo "a specific GNU debugger (for a specific target)"
echo "and run ./$0 in that directory"
echo "After, you will need to run a second script, copy-libs.sh"
echo "with a single parameter specifying to which directory the libraries"
echo "should be copied."
echo "Possible parameters for this script:"
echo "--forcestatic, to convert all -lname into $LINKLIB libname.a"
echo "implicitlibs=\"space separated list of used system libraries\""
echo "libdir=\"space separated list of library directories\""
}
# Try to find GNU make and GNU awk
MAKE=`which gmake 2> /dev/null`
AWK=`which gawk 2> /dev/null`
# Assume make is OK if gmake is not found
if [ "${MAKE}" == "" ]; then
MAKE=make
fi
# Assume awk is OK if gawk is not found
if [ "${AWK}" == "" ]; then
AWK=awk
fi
# Possible extra option to pass when rebuilding gdb executable below
MAKEOPT=
if [ "$1" == "--help" ]; then
usage
exit
fi
forcestatic=0
# Function to treat all command line option
handle_option ()
{
opt_handled=0
if [ "$1" == "" ] ; then
return
fi
if [ "$1" == "--forcestatic" ]; then
echo "Using only static libraries in gdblib.inc"
forcestatic=1
MAKEOPT="LDFLAGS=-static"
opt_handled=1
fi
if [ "${1#implicitlibs=}" != "$1" ]; then
implicitlibs=${1#implicitlibs=}
echo "Also adding implicit libs \"$implicitlibs\""
opt_handled=1
fi
if [ "${1#libdir=}" != "$1" ]; then
libdir=${1#libdir=}
echo "libdir is set to \"$libdir\""
opt_handled=1
fi
}
# Try to handle all command line options
opt_handled=1
while [ $opt_handled -eq 1 ]
do
handle_option "$1"
if [ $opt_handled -eq 1 ] ; then
shift
fi
done
if [ "$1" != "" ]; then
echo "Unrecognized option \"$1\""
usage
fi
if [ "${PATHEXT}" != "" ]; then
EXEEXT=.exe
if [ "${DJDIR}" != "" ]; then
libdir=${DJDIR}/lib
else
libdir=/lib
fi
else
EXEEXT=
if [ "$libdir" == "" ]; then
libdir=/lib
fi
fi
if [ "$OSTYPE" == "msys" ]; then
echo "MSYS system detected"
in_msys=1
else
in_msys=0
fi
echo "Deleting gdb${EXEEXT} to force recompile"
rm -f gdb${EXEEXT}
echo "Rebuilding gdb${EXEEXT}"
${MAKE} gdb${EXEEXT} ${MAKEOPT} | tee make.log
# libgdb.a will not be built automatically anymore after
# GDB release 7.4, so we need to explicitly make it.
echo "Rebuilding GDB library if needed"
${MAKE} libgdb.a ${MAKEOPT}
# version.c is an automatically generated file from gdb/version.in
# We extract GDB version from that file.
gdb_full_version=`sed -n "s:.*version.*\"\(.*\)\".*:\1:p" version.c`
gdbcvs=`sed -n "s:.*version.*\"\(.*\)cvs\(.*\)\".*:\1cvs\2:p" version.c`
gdb_version1=`sed -n "s:.*version.*\"\([0-9]*\)\.\([0-9]*\).*:\1:p" version.c`
gdb_version2=`sed -n "s:.*version.*\"\([0-9]*\)\.\([0-9]*\).*:\2:p" version.c`
gdb_version=`sed -n "s:.*version.*\"\([0-9]*\)\.\([0-9]*\).*:\1.\2:p" version.c`
echo found full version is ${gdb_full_version}
echo found version is ${gdb_version}
if [ ${gdb_version2} -lt 10 ]; then
gdbversion=${gdb_version1}0${gdb_version2}
else
gdbversion=${gdb_version1}${gdb_version2}
fi
cat make.log | ${AWK} '
BEGIN {
doprint=0
}
# We look for the compilation line
# either gcc or cc
/cc / { doprint=1; }
{
if ( doprint == 1 ) {
print $0
}
}
! /\\$/ { doprint=0; }
' | tee comp-cmd.log
gcccompiler=`sed -n "s:\([A-Za-z0-9_-]*gcc\) .*:\1:p" comp-cmd.log`
if [ "$gcccompiler" != "" ]; then
gcclibs=`$gcccompiler -print-search-dirs | sed -n "s#.*libraries: =\(.*\)#\1#p" `
if [ "$gcclibs" != "" ]; then
if [ $in_msys -eq 1 ]; then
# If we are on msys, gcc is mingw, so that it uses c:/dir
# while find is an msys utility that needs /c/dir path
# we do this conversion below
for let in a b c d e f g h i j k l m n o p q r s t u v w x y z; do
gcclibs=${gcclibs//$let:/\/$let}
done
for let in A B C D E F G H I J K L M N O P Q R S T U V W X Y Z; do
gcclibs=${gcclibs//$let:/\/$let}
done
libdir="$libdir ${gcclibs//;/ }"
else
# if ; is present in gcclibs,assume this is the separator instead of :
if [ "${gcclibs//;/ }" != "${gcclibs}" ]; then
if [ "${gcclibs// /_}" != "${gccclibs}" ]; then
# list also contains spaces, convert ' ' into '\ '
gcclibs=${gcclibs// /\\ }
fi
libdir="$libdir ${gcclibs//;/ }"
else
libdir="$libdir ${gcclibs//:/ }"
fi
fi
echo "gcc libs are \"$libdir\""
fi
fi
# Try to locate all libraries
echo Creating ./copy-libs.sh script
cat comp-cmd.log | ${AWK} -v libdir="${libdir}" -v implibs="${implicitlibs}" '
BEGIN {
print "#!/usr/bin/env bash"
print "# copy-libs.sh generated by awk script"
print "INSTALL=`which ginstall 2> /dev/null `"
print "if [ "$INSTALL" == "" ]; then"
print " INSTALL=install"
print "fi"
print "if [ \"$1\" != \"\" ]; then"
print " destdir=$1"
print " $INSTALL -d ${destdir}"
print "else"
print " echo $0 destdir"
print " echo destdir should be the location where libgdb.a"
print " echo and all other archives should be copied"
print " exit"
print "fi"
print "# Copy gdblib.inc file"
print "cp -p gdblib.inc ${destdir}"
}
{
nb = split ($0,list);
for (i=1; i<=nb; i++) {
if ( list[i] ~ /lib[^ ]*\.a/ ) {
print "# Looking for static libs"
staticlib = gensub (/([^ ]*)(lib[^ ]*\.a)/,"\\1\\2 ","g",list[i]);
print "cp -p " staticlib " ${destdir}";
}
if ( list[i] ~ /lib[^ ]*\.so/ ) {
dynamiclib = gensub (/([^ ]*)(lib[^ ]*\.so)/,"\\1\\2 ","g",list[i]);
print "echo " dynamiclib " found";
}
if ( list[i] ~ /^-l/ ) {
print "#Looking for shared libs"
systemlib = gensub (/-l([^ ]*)/,"lib\\1.a ","g",list[i]);
print "systemlib=`find " libdir " -maxdepth 1 -iname " systemlib " -print 2> /dev/null `" ;
print "if [ \"${systemlib}\" != \"\" ]; then";
print " echo System lib found: ${systemlib}";
print " cp -p ${systemlib%%[$IFS]*} ${destdir}";
print "else";
print " echo Library " systemlib " not found, shared library assumed";
print "fi";
}
}
}
END {
nb = split (implibs,list);
for (i=1;i<=nb; i++) {
systemlib = "lib" list[i] ".a";
print "echo Adding system library " systemlib;
print "systemlib=`find " libdir " -maxdepth 1 -iname " systemlib " -print 2> /dev/null `" ;
print "if [ \"${systemlib}\" != \"\" ]; then";
print " echo System lib found: ${systemlib}";
print " cp -p ${systemlib%%[$IFS]*} ${destdir}";
print "else";
print " echo Library " systemlib " not found, shared library assumed";
print "fi";
}
}
' | tee copy-libs.sh
chmod u+x ./copy-libs.sh
# For later
echo Creating ./gdblib.inc file
# Generate gdblib.inc file
cat comp-cmd.log |${AWK} -v gdbcvs=${gdbcvs} -v implibs="${implicitlibs}" \
-v gdbversion=${gdbversion} -v forcestatic=${forcestatic} '
BEGIN {
use_mingw=0;
print "{ libgdb.inc file generated by awk script }"
print "{$define GDB_V" gdbversion " }"
if (gdbcvs) {
print "{$define GDB_CVS}"
}
print "{$ifdef COMPILING_GDBINT_UNIT }"
}
{
nb = split ($0,list);
for (i=1; i<=nb; i++) {
if ( list[i] ~ /lib[^ ]*\.a/ ) {
staticlib = gensub (/([^ ]*)(lib[^ ]*\.a)/,"{$LINKLIB \\2} { found in \\1 }","g",list[i]);
print staticlib;
if ( list[i] ~/mingw/ ) {
use_mingw=1
}
}
if ( list[i] ~ /-D__USE_MINGW_/ ) {
use_mingw=1
}
if ( list[i] ~ /lib[^ ]*\.so/ ) {
dynamiclib = gensub (/([^ ]*)(lib[^ ]*\.so)/,"{$LINKLIB \\2} { found in \\1 }","g",list[i]);
librarypath = gensub (/([^ ]*)(lib[^ ]*\.so)/,"{$LIBRARYPATH \\1} { for \\2 }","g",list[i]);
print dynamiclib;
print librarypath;
}
if ( list[i] ~ /^-l/ ) {
systemlib = gensub (/-l([^ ]*)/,"\\1","g",list[i]);
if (forcestatic == 1) {
systemlib="lib" systemlib ".a"
}
print "{$LINKLIB " systemlib "} { with -l gcc option}";
}
}
}
END {
nb = split (implibs,list);
for (i=1;i<=nb; i++) {
if ( list[i] ~ /lib.*\.a/ ) {
lib=list[i];
} else {
if ( forcestatic == 1 ) {
lib="lib" list[i] ".a";
} else {
lib=list[i];
}
}
print "{$LINKLIB " lib "} { implicit library } "
}
print "{$endif COMPILING_GDBINT_UNIT }"
print "{$undef NotImplemented}"
if ( use_mingw == 1 ) {
print "{$define USE_MINGW_GDB}"
}
}
' | tee gdblib.inc