From c527fd1f14c27855a37f2e8ac5346ce8d940ced2 Mon Sep 17 00:00:00 2001
From: Tudor Florea <tudor.florea@enea.com>
Date: Thu, 16 Oct 2014 03:05:19 +0200
Subject: initial commit for Enea Linux 4.0-140929

Migrated from the internal git server on the daisy-enea-point-release branch

Signed-off-by: Tudor Florea <tudor.florea@enea.com>
---
 meta/classes/chrpath.bbclass | 115 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 115 insertions(+)
 create mode 100644 meta/classes/chrpath.bbclass

(limited to 'meta/classes/chrpath.bbclass')

diff --git a/meta/classes/chrpath.bbclass b/meta/classes/chrpath.bbclass
new file mode 100644
index 0000000000..7bdb1b9938
--- /dev/null
+++ b/meta/classes/chrpath.bbclass
@@ -0,0 +1,115 @@
+CHRPATH_BIN ?= "chrpath"
+PREPROCESS_RELOCATE_DIRS ?= ""
+
+def process_file_linux(cmd, fpath, rootdir, baseprefix, tmpdir, d):
+    import subprocess as sub
+
+    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:
+        return
+
+    # 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 = []
+    modified = False
+    for rpath in rpaths:
+        # If rpath is already dynamic copy it to new_rpath and continue
+        if rpath.find("$ORIGIN") != -1:
+            new_rpaths.append(rpath.strip())
+            continue
+        rpath =  os.path.normpath(rpath)
+        if baseprefix not in rpath and tmpdir not in rpath:
+            new_rpaths.append(rpath.strip())
+            continue
+        new_rpaths.append("$ORIGIN/" + os.path.relpath(rpath.strip(), os.path.dirname(fpath.replace(rootdir, "/"))))
+        modified = True
+
+    # if we have modified some rpaths call chrpath to update the binary
+    if modified:
+        args = ":".join(new_rpaths)
+        #bb.note("Setting rpath for %s to %s" %(fpath, args))
+        p = sub.Popen([cmd, '-r', args, fpath],stdout=sub.PIPE,stderr=sub.PIPE)
+        out, err = p.communicate()
+        if p.returncode != 0:
+            bb.error("%s: chrpath command failed with exit code %d:\n%s%s" % (d.getVar('PN', True), p.returncode, out, err))
+            raise bb.build.FuncFailed
+
+def process_file_darwin(cmd, fpath, rootdir, baseprefix, tmpdir, d):
+    import subprocess as sub
+
+    p = sub.Popen([d.expand("${HOST_PREFIX}otool"), '-L', fpath],stdout=sub.PIPE,stderr=sub.PIPE)
+    err, out = p.communicate()
+    # If returned succesfully, process stderr for results
+    if p.returncode != 0:
+        return
+    for l in err.split("\n"):
+        if "(compatibility" not in l:
+            continue
+        rpath = l.partition("(compatibility")[0].strip()
+        if baseprefix not in rpath:
+            continue
+
+        newpath = "@loader_path/" + os.path.relpath(rpath, os.path.dirname(fpath.replace(rootdir, "/")))
+        bb.warn("%s %s %s %s" % (fpath, rpath, newpath, rootdir))
+        p = sub.Popen([d.expand("${HOST_PREFIX}install_name_tool"), '-change', rpath, newpath, fpath],stdout=sub.PIPE,stderr=sub.PIPE)
+        err, out = p.communicate()
+
+def process_dir (rootdir, directory, d):
+    import stat
+
+    cmd = d.expand('${CHRPATH_BIN}')
+    tmpdir = os.path.normpath(d.getVar('TMPDIR'))
+    baseprefix = os.path.normpath(d.expand('${base_prefix}'))
+    hostos = d.getVar("HOST_OS", True)
+
+    #bb.debug("Checking %s for binaries to process" % directory)
+    if not os.path.exists(directory):
+        return
+
+    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)
+        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)
+                
+            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)
+
-- 
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