2 files changed, 61 insertions, 1 deletions

diff --git a/meta/classes/image.bbclass b/meta/classes/image.bbclass
index 01f8b3fc19..58b4add8fa 100644
--- a/meta/classes/image.bbclass
+++ b/meta/classes/image.bbclass
@@ -24,6 +24,9 @@ IMAGE_FEATURES ?= ""
 IMAGE_FEATURES[type] = "list"
 IMAGE_FEATURES[validitems] += "debug-tweaks read-only-rootfs empty-root-password allow-empty-password post-install-logging"
 
+# Generate companion debugfs?
+IMAGE_GEN_DEBUGFS ?= "0"
+
 # rootfs bootstrap install
 ROOTFS_BOOTSTRAP_INSTALL = "${@bb.utils.contains("IMAGE_FEATURES", "package-management", "", "${ROOTFS_PKGMANAGE_BOOTSTRAP}",d)}"
 
@@ -108,7 +111,7 @@ def rootfs_variables(d):
                  'SDK_OUTPUT','SDKPATHNATIVE','SDKTARGETSYSROOT','SDK_DIR','SDK_VENDOR','SDKIMAGE_INSTALL_COMPLEMENTARY','SDK_PACKAGE_ARCHS','SDK_OUTPUT','SDKTARGETSYSROOT','MULTILIBRE_ALLOW_REP',
                  'MULTILIB_TEMP_ROOTFS','MULTILIB_VARIANTS','MULTILIBS','ALL_MULTILIB_PACKAGE_ARCHS','MULTILIB_GLOBAL_VARIANTS','BAD_RECOMMENDATIONS','NO_RECOMMENDATIONS','PACKAGE_ARCHS',
                  'PACKAGE_CLASSES','TARGET_VENDOR','TARGET_VENDOR','TARGET_ARCH','TARGET_OS','OVERRIDES','BBEXTENDVARIANT','FEED_DEPLOYDIR_BASE_URI','INTERCEPT_DIR','USE_DEVFS',
-                 'COMPRESSIONTYPES']
+                 'COMPRESSIONTYPES', 'IMAGE_GEN_DEBUGFS']
     variables.extend(command_variables(d))
     variables.extend(variable_depends(d))
     return " ".join(variables)
diff --git a/meta/lib/oe/rootfs.py b/meta/lib/oe/rootfs.py
index a9a6c85a2c..5f1f7b3e5d 100644
--- a/meta/lib/oe/rootfs.py
+++ b/meta/lib/oe/rootfs.py
@@ -95,6 +95,57 @@ class Rootfs(object):
     def _cleanup(self):
         pass
 
+    def _setup_dbg_rootfs(self, dirs):
+        gen_debugfs = self.d.getVar('IMAGE_GEN_DEBUGFS', True) or '0'
+        if gen_debugfs != '1':
+           return
+
+        bb.note("  Renaming the original rootfs...")
+        try:
+            shutil.rmtree(self.image_rootfs + '-orig')
+        except:
+            pass
+        os.rename(self.image_rootfs, self.image_rootfs + '-orig')
+
+        bb.note("  Creating debug rootfs...")
+        bb.utils.mkdirhier(self.image_rootfs)
+
+        bb.note("  Copying back package database...")
+        for dir in dirs:
+            bb.utils.mkdirhier(self.image_rootfs + os.path.dirname(dir))
+            shutil.copytree(self.image_rootfs + '-orig' + dir, self.image_rootfs + dir)
+
+        cpath = oe.cachedpath.CachedPath()
+        # Copy files located in /usr/lib/debug or /usr/src/debug
+        for dir in ["/usr/lib/debug", "/usr/src/debug"]:
+            src = self.image_rootfs + '-orig' + dir
+            if cpath.exists(src):
+                dst = self.image_rootfs + dir
+                bb.utils.mkdirhier(os.path.dirname(dst))
+                shutil.copytree(src, dst)
+
+        # Copy files with suffix '.debug' or located in '.debug' dir.
+        for root, dirs, files in cpath.walk(self.image_rootfs + '-orig'):
+            relative_dir = root[len(self.image_rootfs + '-orig'):]
+            for f in files:
+                if f.endswith('.debug') or '/.debug' in relative_dir:
+                    bb.utils.mkdirhier(self.image_rootfs + relative_dir)
+                    shutil.copy(os.path.join(root, f),
+                                self.image_rootfs + relative_dir)
+
+        bb.note("  Install complementary '*-dbg' packages...")
+        self.pm.install_complementary('*-dbg')
+
+        bb.note("  Rename debug rootfs...")
+        try:
+            shutil.rmtree(self.image_rootfs + '-dbg')
+        except:
+            pass
+        os.rename(self.image_rootfs, self.image_rootfs + '-dbg')
+
+        bb.note("  Restoreing original rootfs...")
+        os.rename(self.image_rootfs + '-orig', self.image_rootfs)
+
     def _exec_shell_cmd(self, cmd):
         fakerootcmd = self.d.getVar('FAKEROOT', True)
         if fakerootcmd is not None:
@@ -369,6 +420,8 @@ class RpmRootfs(Rootfs):
 
         self.pm.install_complementary()
 
+        self._setup_dbg_rootfs(['/etc/rpm', '/var/lib/rpm', '/var/lib/smart'])
+
         if self.inc_rpm_image_gen == "1":
             self.pm.backup_packaging_data()
 
@@ -475,6 +528,8 @@ class DpkgRootfs(Rootfs):
 
         self.pm.install_complementary()
 
+        self._setup_dbg_rootfs(['/var/lib/dpkg'])
+
         self.pm.fix_broken_dependencies()
 
         self.pm.mark_packages("installed")
@@ -743,6 +798,8 @@ class OpkgRootfs(Rootfs):
 
         self.pm.install_complementary()
 
+        self._setup_dbg_rootfs(['/var/lib/opkg'])
+
         execute_pre_post_process(self.d, opkg_post_process_cmds)
         execute_pre_post_process(self.d, rootfs_post_install_cmds)