SYSROOT_PREPROCESS_FUNCS += "relocatable_binaries_preprocess" CHRPATH_BIN ?= "chrpath" PREPROCESS_RELOCATE_DIRS ?= "" def rpath_replace (path, d): import subprocess as sub cmd = bb.data.expand('${CHRPATH_BIN}', d) bindirs = bb.data.expand("${bindir} ${sbindir} ${base_sbindir} ${base_bindir} ${PREPROCESS_RELOCATE_DIRS}", d).split() tmpdir = bb.data.getVar('TMPDIR', d) basedir = bb.data.expand('${base_prefix}', d) for d in bindirs: dir = path + "/" + d bb.debug("Checking %s for binaries to process" % dir) if os.path.exists(dir): for file in os.listdir(dir): fpath = dir + "/" + file if os.path.islink(fpath): fpath = os.readlink(fpath) if not os.path.isabs(fpath): fpath = os.path.normpath(os.path.join(dir, fpath)) #bb.note("Testing %s for relocatability" % fpath) p = sub.Popen([cmd, '-l', fpath],stdout=sub.PIPE,stderr=sub.PIPE) err, out = p.communicate() # If returned succesfully, process stderr for results if p.returncode == 0: # Throw away everything other than the rpath list curr_rpath = err.partition("RPATH=")[2] #bb.note("Current rpath for %s is %s" % (fpath, curr_rpath.strip())) rpaths = curr_rpath.split(":") new_rpaths = [] for rpath in rpaths: # If rpath is already dynamic continue if rpath.find("$ORIGIN") != -1: continue # If the rpath shares a root with base_prefix determine a new dynamic rpath from the # base_prefix shared root if rpath.find(basedir) != -1: depth = fpath.partition(basedir)[2].count('/') libpath = rpath.partition(basedir)[2].strip() # otherwise (i.e. cross packages) determine a shared root based on the TMPDIR # NOTE: This will not work reliably for cross packages, particularly in the case # where your TMPDIR is a short path (i.e. /usr/poky) as chrpath cannot insert an # rpath longer than that which is already set. else: depth = fpath.rpartition(tmpdir)[2].count('/') libpath = rpath.partition(tmpdir)[2].strip() base = "$ORIGIN" while depth > 1: base += "/.." depth-=1 new_rpaths.append("%s%s" % (base, libpath)) # if we have modified some rpaths call chrpath to update the binary if len(new_rpaths): args = ":".join(new_rpaths) #bb.note("Setting rpath to " + args) sub.call([cmd, '-r', args, fpath]) python relocatable_binaries_preprocess() { rpath_replace(bb.data.expand('${SYSROOT_DESTDIR}', d), d) }