Commit 7b599ef5 authored by Jan Kiszka's avatar Jan Kiszka Committed by Linus Torvalds

scripts/gdb: add internal helper and convenience function to look up a module

Add the internal helper get_module_by_name to obtain the module structure
corresponding to the given name.  Also export this service as a
convenience function.
Signed-off-by: Jan Kiszka's avatarJan 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: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 82b41e3d
......@@ -37,3 +37,31 @@ class ModuleList:
return utils.container_of(entry, self.module_ptr_type, "list")
else:
raise StopIteration
def find_module_by_name(name):
for module in ModuleList():
if module['name'].string() == name:
return module
return None
class LxModule(gdb.Function):
"""Find module by name and return the module variable.
$lx_module("MODULE"): Given the name MODULE, iterate over all loaded modules
of the target and return that module variable which MODULE matches."""
def __init__(self):
super(LxModule, self).__init__("lx_module")
def invoke(self, mod_name):
mod_name = mod_name.string()
module = find_module_by_name(mod_name)
if module:
return module.dereference()
else:
raise gdb.GdbError("Unable to find MODULE " + mod_name)
LxModule()
......@@ -24,3 +24,4 @@ except:
else:
import linux.utils
import linux.symbols
import linux.modules
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