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authorJan Kiszka <jan.kiszka@siemens.com>2015-02-17 13:46:44 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2015-02-17 14:34:53 -0800
commit850202e17df68c51593bab36a26c8d9279f8c029 (patch)
tree3eacbf7e18cb4abe38c3ef57b3a5b13317862e00
parentscripts/gdb: add container_of helper and convenience function (diff)
downloadlinux-dev-850202e17df68c51593bab36a26c8d9279f8c029.tar.xz
linux-dev-850202e17df68c51593bab36a26c8d9279f8c029.zip
scripts/gdb: add module iteration class
Will soon be used for loading symbols, printing global variables or listing modules. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jason Wessel <jason.wessel@windriver.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Ben Widawsky <ben@bwidawsk.net> Cc: Borislav Petkov <bp@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--scripts/gdb/linux/modules.py39
1 files changed, 39 insertions, 0 deletions
diff --git a/scripts/gdb/linux/modules.py b/scripts/gdb/linux/modules.py
new file mode 100644
index 000000000000..8a65c3d5eecb
--- /dev/null
+++ b/scripts/gdb/linux/modules.py
@@ -0,0 +1,39 @@
+#
+# gdb helper commands and functions for Linux kernel debugging
+#
+# module tools
+#
+# Copyright (c) Siemens AG, 2013
+#
+# Authors:
+# Jan Kiszka <jan.kiszka@siemens.com>
+#
+# This work is licensed under the terms of the GNU GPL version 2.
+#
+
+import gdb
+
+from linux import utils
+
+
+module_type = utils.CachedType("struct module")
+
+
+class ModuleList:
+ def __init__(self):
+ global module_type
+ self.module_ptr_type = module_type.get_type().pointer()
+ modules = gdb.parse_and_eval("modules")
+ self.curr_entry = modules['next']
+ self.end_of_list = modules.address
+
+ def __iter__(self):
+ return self
+
+ def next(self):
+ entry = self.curr_entry
+ if entry != self.end_of_list:
+ self.curr_entry = entry['next']
+ return utils.container_of(entry, self.module_ptr_type, "list")
+ else:
+ raise StopIteration