[libraries] collect standard library paths

Collects the paths to the libraries cached by "ldconfig". This is useful
when a customer replaced a standard library by its own or when he added
his own libraries to the standard paths or through symbolic links.

Resolves: #1282

Signed-off-by: Renaud Métrich <rmetrich@redhat.com>
Signed-off-by: Bryn M. Reeves <bmr@redhat.com>

1 files changed, 18 insertions, 1 deletions

diff --git a/sos/plugins/libraries.py b/sos/plugins/libraries.py
index 4acdeb57..03f79dab 100644
--- a/sos/plugins/libraries.py
+++ b/sos/plugins/libraries.py
@@ -24,6 +24,23 @@ class Libraries(Plugin, RedHatPlugin, UbuntuPlugin):
         self.add_copy_spec(["/etc/ld.so.conf", "/etc/ld.so.conf.d"])
         if self.get_option("ldconfigv"):
             self.add_cmd_output("ldconfig -v -N -X")
-        self.add_cmd_output("ldconfig -p -N -X")
+
+        ldconfig_file = self.get_cmd_output_now("ldconfig -p -N -X")
+
+        if not ldconfig_file:
+            return
+
+        # Collect library directories from ldconfig's cache
+        dirs = set()
+        with open(ldconfig_file) as f:
+            for l in f.read().splitlines():
+                s = l.split(" => ", 2)
+                if len(s) != 2:
+                    continue
+                dirs.add(s[1].rsplit('/', 1)[0])
+
+        if dirs:
+            self.add_cmd_output("ls -lanH %s" % " ".join(dirs),
+                                suggest_filename="ld_so_cache")
 
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