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now picobsd cross builds work (tried with host amd64, target i386 ).

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The fix involved adding a proper build of ld-elf.so.1 ,
and also replacing ldd with objdump (suggested by Garrett Cooper)
to build the list of shared libraries needed by the binaries
and libraries on the target.
This commit is contained in:
Luigi Rizzo 2012-01-04 23:00:25 +00:00
parent f68dd1eefc
commit ef632da67a
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=229532
1 changed files with 27 additions and 19 deletions
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46
release/picobsd/build/picobsd
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@ -161,19 +161,19 @@ set_defaults() { # no arguments
# and also to build a specific target
create_includes_and_libraries2() { # opt_dir opt_target
local no
log "create_includes_and_libraries2() for ${SRC}"
log "create_includes_and_libraries2() for ${SRC} $1"
if [ ${OSVERSION} -ge 600000 ] ; then
no="-DNO_CLEAN -DNO_PROFILE -DNO_GAMES -DNO_LIBC_R" # WITHOUT_CDDL=1"
else
no="-DNOCLEAN -DNOPROFILE -DNOGAMES -DNOLIBC_R"
fi
MAKEOBJDIRPREFIX=${l_objtree}
export MAKEOBJDIRPREFIX
( cd ${SRC};
# make -DNOCLEAN -DNOPROFILE -DNOGAMES -DNOLIBC_R -DPICOBSD buildworld
if [ -d "$1" ] ; then
cd $1 ; ${BINMAKE} ${o_par} $2 # specific target, e.g. ld-elf.so
else
MAKEOBJDIRPREFIX=${l_objtree}
export MAKEOBJDIRPREFIX
# export WITH_RESCUE=yes # build crunchide
# ${BINMAKE} ${o_par} _+_= $no toolchain _includes _libraries
(
@ -551,7 +551,7 @@ do_links() { # rootdir varname
# find_progs is a helper function to locate the named programs
# or libraries in ${o_objdir} or ${_SHLIBDIRPREFIX},
# and return the full pathnames.
# Called as "find_progs [-L libpath] [-P binpath] prog1 prog2 ... "
# Called as "find_progs [[-L libpath] [-P binpath]] prog1 prog2 ... "
# On return it sets ${u_progs} to the list of programs, and ${u_libs}
# to the list of shared libraries used.
#
@ -574,24 +574,32 @@ do_links() { # rootdir varname
# }
find_progs() { # programs
local i
local oo=${o_objdir:-${_SHLIBDIRPREFIX}} # default objdir
local lp=$oo/lib # default lib.prefix
local o="" # additional objdir
local pass i old_libs="" tmp o=""
if [ x"$1" = "x-L" -a -d "$2" ] ; then # set lib search path
o=$2; shift; shift
lp="$lp:$o/lib:$o/usr/lib:$o/usr/local/lib"
o="-P $o"
o="-P $2"; shift; shift
fi
u_libs=""
u_progs="`find_progs_helper $*`"
log "looking for libs for <$u_progs> in $lp"
# Result returned in global variables
u_libs="" ; u_progs="`find_progs_helper $*`"
[ -z "${u_progs}" ] && return 1 # not found, error
i="`( LD_LIBRARY_PATH=$lp ldd ${u_progs} ) | \
grep -v '^/' | awk '{print $1}' | sort | uniq`"
u_libs="`find_progs_helper $o $i`"
log "--- done find_progs ---"
return 0
# use objdump to find libraries. Iterate to fetch recursive
# dependencies.
tmp="${u_progs}" ; pass=1
while [ $pass -lt 10 ] ; do
pass=$(($pass + 1))
i="`objdump -x ${tmp} | \
awk '$1 == "NEEDED" { print $2 }' | sort | uniq`"
if [ "$old_libs" = "$i" ] ; then
log "libraries for: $my_progs ($u_progs) are ($i) $u_libs"
log "--- done find_progs ---"
return 0
else
# logverbose "old--- $old_libs --- new +++ $i +++"
fi
u_libs="`find_progs_helper $o $i`"
old_libs="$i"
tmp="$tmp $u_libs"
done
log "WARNING: Too many passes, giving up"
}
find_progs_helper() { # programs