diff options
Diffstat (limited to 'meta/classes/chrpath.bbclass')
-rw-r--r-- | meta/classes/chrpath.bbclass | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/meta/classes/chrpath.bbclass b/meta/classes/chrpath.bbclass new file mode 100644 index 0000000000..10b5ca0180 --- /dev/null +++ b/meta/classes/chrpath.bbclass @@ -0,0 +1,89 @@ +CHRPATH_BIN ?= "chrpath" +PREPROCESS_RELOCATE_DIRS ?= "" + +def process_dir (directory, d): + import subprocess as sub + import stat + + cmd = d.expand('${CHRPATH_BIN}') + tmpdir = d.getVar('TMPDIR') + basedir = d.expand('${base_prefix}') + + #bb.debug("Checking %s for binaries to process" % directory) + if not os.path.exists(directory): + return + + dirs = os.listdir(directory) + for file in dirs: + fpath = directory + "/" + file + fpath = os.path.normpath(fpath) + if os.path.islink(fpath): + # Skip symlinks + continue + + if os.path.isdir(fpath): + process_dir(fpath, d) + else: + #bb.note("Testing %s for relocatability" % fpath) + + # We need read and write permissions for chrpath, if we don't have + # them then set them temporarily. Take a copy of the files + # permissions so that we can restore them afterwards. + perms = os.stat(fpath)[stat.ST_MODE] + if os.access(fpath, os.W_OK|os.R_OK): + perms = None + else: + # Temporarily make the file writeable so we can chrpath it + os.chmod(fpath, perms|stat.S_IRWXU) + + 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: + continue + + # 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 for %s to %s" %(fpath, args)) + sub.call([cmd, '-r', args, fpath]) + + if perms: + os.chmod(fpath, perms) + +def rpath_replace (path, d): + bindirs = d.expand("${bindir} ${sbindir} ${base_sbindir} ${base_bindir} ${libdir} ${base_libdir} ${libexecdir} ${PREPROCESS_RELOCATE_DIRS}").split() + + for bindir in bindirs: + #bb.note ("Processing directory " + bindir) + directory = path + "/" + bindir + process_dir (directory, d) + |