1 files changed, 134 insertions, 0 deletions
diff --git a/classes/chrpath.bbclass b/classes/chrpath.bbclass
new file mode 100644
index 0000000..873a5b5
--- /dev/null
+++ b/classes/chrpath.bbclass
@@ -0,0 +1,134 @@
+CHRPATH_BIN ?= "chrpath"
+PREPROCESS_RELOCATE_DIRS ?= ""
+
+def process_file_linux(cmd, fpath, rootdir, baseprefix, tmpdir, d, break_hardlinks = False):
+    import subprocess, oe.qa
+
+    with oe.qa.ELFFile(fpath) as elf:
+        try:
+            elf.open()
+        except oe.qa.NotELFFileError:
+            return
+
+    try:
+        out = subprocess.check_output([cmd, "-l", fpath], universal_newlines=True)
+    except subprocess.CalledProcessError:
+        return
+
+    # Handle RUNPATH as well as RPATH
+    out = out.replace("RUNPATH=","RPATH=")
+    # Throw away everything other than the rpath list
+    curr_rpath = out.partition("RPATH=")[2]
+    #bb.note("Current rpath for %s is %s" % (fpath, curr_rpath.strip()))
+    rpaths = curr_rpath.strip().split(":")
+    new_rpaths = []
+    modified = False
+    for rpath in rpaths:
+        # If rpath is already dynamic copy it to new_rpath and continue
+        if rpath.find("$ORIGIN") != -1:
+            new_rpaths.append(rpath)
+            continue
+        rpath =  os.path.normpath(rpath)
+        if baseprefix not in rpath and tmpdir not in rpath:
+            # Skip standard search paths
+            if rpath in ['/lib', '/usr/lib', '/lib64/', '/usr/lib64']:
+                bb.warn("Skipping RPATH %s as is a standard search path for %s" % (rpath, fpath))
+                modified = True
+                continue
+            new_rpaths.append(rpath)
+            continue
+        new_rpaths.append("$ORIGIN/" + os.path.relpath(rpath, os.path.dirname(fpath.replace(rootdir, "/"))))
+        modified = True
+
+    # if we have modified some rpaths call chrpath to update the binary
+    if modified:
+        if break_hardlinks:
+            bb.utils.break_hardlinks(fpath)
+
+        args = ":".join(new_rpaths)
+        #bb.note("Setting rpath for %s to %s" %(fpath, args))
+        try:
+            subprocess.check_output([cmd, "-r", args, fpath],
+            stderr=subprocess.PIPE, universal_newlines=True)
+        except subprocess.CalledProcessError as e:
+            bb.fatal("chrpath command failed with exit code %d:\n%s\n%s" % (e.returncode, e.stdout, e.stderr))
+
+def process_file_darwin(cmd, fpath, rootdir, baseprefix, tmpdir, d, break_hardlinks = False):
+    import subprocess as sub
+
+    p = sub.Popen([d.expand("${HOST_PREFIX}otool"), '-L', fpath],stdout=sub.PIPE,stderr=sub.PIPE, universal_newlines=True)
+    out, err = p.communicate()
+    # If returned successfully, process stdout for results
+    if p.returncode != 0:
+        return
+    for l in out.split("\n"):
+        if "(compatibility" not in l:
+            continue
+        rpath = l.partition("(compatibility")[0].strip()
+        if baseprefix not in rpath:
+            continue
+
+        if break_hardlinks:
+            bb.utils.break_hardlinks(fpath)
+
+        newpath = "@loader_path/" + os.path.relpath(rpath, os.path.dirname(fpath.replace(rootdir, "/")))
+        p = sub.Popen([d.expand("${HOST_PREFIX}install_name_tool"), '-change', rpath, newpath, fpath],stdout=sub.PIPE,stderr=sub.PIPE)
+        out, err = p.communicate()
+
+def process_dir(rootdir, directory, d, break_hardlinks = False):
+    bb.debug(2, "Checking %s for binaries to process" % directory)
+    if not os.path.exists(directory):
+        return
+
+    import stat
+
+    rootdir = os.path.normpath(rootdir)
+    cmd = d.expand('${CHRPATH_BIN}')
+    tmpdir = os.path.normpath(d.getVar('TMPDIR', False))
+    baseprefix = os.path.normpath(d.expand('${base_prefix}'))
+    hostos = d.getVar("HOST_OS")
+
+    if "linux" in hostos:
+        process_file = process_file_linux
+    elif "darwin" in hostos:
+        process_file = process_file_darwin
+    else:
+        # Relocations not supported
+        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(rootdir, fpath, d, break_hardlinks = break_hardlinks)
+        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)
+
+            process_file(cmd, fpath, rootdir, baseprefix, tmpdir, d, break_hardlinks = break_hardlinks)
+
+            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 (path, directory, d)
+