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revise the helper functions to lookup binaries and their
shared libraries.
This commit is contained in:
Luigi Rizzo
parent
374ce66b66
commit
76210de388
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=259410
@ -91,7 +91,7 @@ log() { # message
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# unconditionally log and wait for input
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logverbose() { # message
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local foo
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printf "\n*** %s\n" "$*"
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printf "\n*** %s\n" "$*" >&2
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read -p "=== Press enter to continue" foo
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return 0
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}
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@ -570,71 +570,89 @@ do_links() { # rootdir varname
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# cp -p ${u_progs} ${dst}/libexec # ignore errors
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# }
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# find programs and required libraries. Accept -L libs -P path <progs>
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# if no argument default to objdir/SHLIBDIRPREFIX for both
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find_progs() { # programs
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local pass i old_libs="" tmp o=""
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if [ x"$1" = "x-L" -a -d "$2" ] ; then # set lib search path
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o="-P $2"; shift; shift
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fi
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# Result returned in global variables
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u_libs="" ; u_progs="`find_progs_helper $*`"
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# logverbose "find_progs: called with $*"
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local i=`realpath ${o_objdir:-${_SHLIBDIRPREFIX}/..}`
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# default values for -L and -P
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local dir="-P $i"
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local ldir="-L $i"
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while [ "$1" != "" ] ; do
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if [ x"$1" = "x-L" -a -d "$2" ] ; then # set lib search path
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ldir="-L $2"; shift; shift
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elif [ x"$1" = "x-P" -a -d "$2" ] ; then # set prog search path
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dir="-P $2"; shift; shift
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else
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break
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fi
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done
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# Results are returned in global variables
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u_libs=""
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u_progs="`find_progs_helper $dir $*`"
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[ -z "${u_progs}" ] && return 1 # not found, error
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# use objdump to find libraries. Iterate to fetch recursive
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# dependencies.
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tmp="${u_progs}" ; pass=1
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# use objdump to find libraries.
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# Iterate to fetch recursive dependencies.
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local tmp="${u_progs}"
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local old_libs=""
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local pass=1
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while [ $pass -lt 10 ] ; do
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pass=$(($pass + 1))
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i="`objdump -x ${tmp} | \
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awk '$1 == "NEEDED" { print $2 }' | sort | uniq`"
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awk '$1 == "NEEDED" { print $2 }' | sort | uniq | tr '\n' ' '`"
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if [ "$old_libs" = "$i" ] ; then
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log "libraries for: $my_progs ($u_progs) are ($i) $u_libs"
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log "--- done find_progs ---"
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# logverbose "find_progs: have `echo ${u_libs} | wc -w`/`echo ${i} | wc -w` libraries for: $my_progs ($u_progs)"
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# logverbose "they are ($i) $u_libs"
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return 0
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else
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# logverbose "old--- $old_libs --- new +++ $i +++"
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fi
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u_libs="`find_progs_helper $o $i`"
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u_libs="`find_progs_helper $ldir $i`"
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old_libs="$i"
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tmp="$tmp $u_libs"
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done
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log "WARNING: Too many passes, giving up"
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}
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find_progs_helper() { # programs
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local dir=${o_objdir:-${_SHLIBDIRPREFIX}/..}
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local ldir=""
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if [ x"$1" = "x-P" -a -d "$2" ] ; then # set path
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ldir=$2; shift; shift
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fi
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local progs="$*"
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local subdirs=". local/bin local/sbin local/lib local/libexec \
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bin sbin usr.bin usr.sbin libexec lib \
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gnu/usr.bin gnu/lib \
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secure/usr.bin secure/usr.sbin secure/libexec secure/lib"
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local names="" # files to search
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local o=""
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# prints to stdout files and libs in the search paths
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find_progs_helper() { # first arg is either -P or -L
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local ty=$1 dir=$2 ; shift; shift
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local progs="`echo $* | tr ' ' '\n' | sort -u | tr '\n' ' '`"
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# first, extract absolute pathnames or files in this directory
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# accumulate others in $names
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local names=""
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local i
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for i in $progs ; do
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# full pathnames are just listed
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[ -f "$i" ] && echo $i && continue
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names="${names} ${o} -name $i"
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o="-o"
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[ -f "$i" ] && echo `realpath $i` && continue
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names="${names} $i"
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done
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# if nothing left, we are done
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[ -z "${names}" ] && return 0
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local places="" # places to search
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for i in $subdirs ; do
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[ -d "${dir}/${i}" ] && places="${places} ${dir}/${i}"
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done
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if [ -n "${ldir}" ] ; then
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for i in $subdirs ; do
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[ -d "${ldir}/${i}" ] && places="${places} ${ldir}/${i}"
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done
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local depth p
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local places="" # places to search
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if [ x-P = "x$ty" ] ; then # search programs
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depth=2
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p=". local/bin local/sbin local/libexec \
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bin sbin usr/bin usr/sbin libexec gnu/usr.bin \
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secure/usr.bin secure/usr.sbin secure/libexec "
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else
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depth=3
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p="lib usr/lib gnu/lib secure/lib"
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fi
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for i in $progs ; do
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# full pathnames are just listed
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[ -f "$i" ] && echo $i && continue
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find ${places} -maxdepth 3 -type f -name ${i} | head -1
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for i in $p ; do
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i="${dir}/${i}"
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[ -d "${i}" ] && places="${places} `realpath ${i}`"
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done
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# logverbose "--- looking into $places"
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places=`echo ${places} | tr ' ' '\n' | sort -u`
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for i in $names ; do
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find ${places} -maxdepth $depth -type f -name ${i} | head -1
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done
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# use maxdepth 3 because some libs are way down
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}
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# Populate the memory filesystem with binaries and non-variable
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@ -746,6 +764,7 @@ populate_mfs_tree() {
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fi
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log "for a shared 'crunch' take libraries and dynamic loader as well"
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# /stand/crunch is our main binary, we extract its libs
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find_progs ${dst}/stand/crunch
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if [ -n "${u_libs}" ] ; then
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mkdir -p ${dst}/lib && cp -p ${u_libs} ${dst}/lib
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