[oe-commits] [openembedded-core] 26/41: kernel-module-split.bbclass: support CONFIG_MODULE_COMPRESS=y

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rpurdie pushed a commit to branch warrior
in repository openembedded-core.

commit 499e830fad1c109f6c009d6ceb2256ced19e4452
Author: Jens Rehsack <sno at netbsd.org>
AuthorDate: Thu Apr 18 16:08:42 2019 +0200

    kernel-module-split.bbclass: support CONFIG_MODULE_COMPRESS=y
    
    In case, kernel config enables compressed modules, support of
    splitting via split_kernel_module_packages won't find any module.
    So, first expand module pattern regex to recognize compressed
    modules and then objcopy on temporary extacted to extract module
    information.
    
    Signed-off-by: Jens Rehsack <sno at netbsd.org>
    Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
    Signed-off-by: Armin Kuster <akuster808 at gmail.com>
---
 meta/classes/kernel-module-split.bbclass | 20 ++++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/meta/classes/kernel-module-split.bbclass b/meta/classes/kernel-module-split.bbclass
index e8d3eb5..221022b 100644
--- a/meta/classes/kernel-module-split.bbclass
+++ b/meta/classes/kernel-module-split.bbclass
@@ -44,9 +44,23 @@ python split_kernel_module_packages () {
     def extract_modinfo(file):
         import tempfile, subprocess
         tempfile.tempdir = d.getVar("WORKDIR")
+        compressed = re.match( r'.*\.([xg])z$', file)
         tf = tempfile.mkstemp()
         tmpfile = tf[1]
-        cmd = "%sobjcopy -j .modinfo -O binary %s %s" % (d.getVar("HOST_PREFIX") or "", file, tmpfile)
+        if compressed:
+            tmpkofile = tmpfile + ".ko"
+            if compressed.group(1) == 'g':
+                cmd = "gunzip -dc %s > %s" % (file, tmpkofile)
+                subprocess.check_call(cmd, shell=True)
+            elif compressed.group(1) == 'x':
+                cmd = "xz -dc %s > %s" % (file, tmpkofile)
+                subprocess.check_call(cmd, shell=True)
+            else:
+                msg = "Cannot decompress '%s'" % file
+                raise msg
+            cmd = "%sobjcopy -j .modinfo -O binary %s %s" % (d.getVar("HOST_PREFIX") or "", tmpkofile, tmpfile)
+        else:
+            cmd = "%sobjcopy -j .modinfo -O binary %s %s" % (d.getVar("HOST_PREFIX") or "", file, tmpfile)
         subprocess.check_call(cmd, shell=True)
         # errors='replace': Some old kernel versions contain invalid utf-8 characters in mod descriptions (like 0xf6, 'ö')
         f = open(tmpfile, errors='replace')
@@ -54,6 +68,8 @@ python split_kernel_module_packages () {
         f.close()
         os.close(tf[0])
         os.unlink(tmpfile)
+        if compressed:
+            os.unlink(tmpkofile)
         vals = {}
         for i in l:
             m = modinfoexp.match(i)
@@ -133,7 +149,7 @@ python split_kernel_module_packages () {
     kernel_package_name = d.getVar("KERNEL_PACKAGE_NAME") or "kernel"
     kernel_version = d.getVar("KERNEL_VERSION")
 
-    module_regex = r'^(.*)\.k?o$'
+    module_regex = r'^(.*)\.k?o(?:\.[xg]z)?$'
 
     module_pattern_prefix = d.getVar('KERNEL_MODULE_PACKAGE_PREFIX')
     module_pattern_suffix = d.getVar('KERNEL_MODULE_PACKAGE_SUFFIX')

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