Messages in this thread Patch in this message |  | | From | Jan Kiszka <> | Subject | [PATCH v5 06/20] scripts/gdb: Add internal helper and convenience function to look up a module | Date | Tue, 29 Jan 2013 13:37:49 +0100 |
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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 <jan.kiszka@siemens.com> --- scripts/gdb/module.py | 30 ++++++++++++++++++++++++++++++ scripts/gdb/vmlinux-gdb.py | 1 + 2 files changed, 31 insertions(+), 0 deletions(-)
diff --git a/scripts/gdb/module.py b/scripts/gdb/module.py index 01b23df..e309c0a 100644 --- a/scripts/gdb/module.py +++ b/scripts/gdb/module.py @@ -26,3 +26,33 @@ def for_each_module(func, arg = None): module = container_of(entry, module_ptr_type, "list") func(module, arg) entry = entry['next'] + +def find_module_by_name(name): + def match_name(module, arg): + if module['name'].string() == arg['name']: + arg['module'] = module + + arg = { 'name': name, 'module': None } + for_each_module(match_name, arg) + + return arg['module'] + + +class LxModule(gdb.Function): + __doc__ = "Find module by name and return the module variable.\n" \ + "\n" \ + "$lx_module(MODULE): Given the name MODULE, iterate over all loaded modules of\n" \ + "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() diff --git a/scripts/gdb/vmlinux-gdb.py b/scripts/gdb/vmlinux-gdb.py index 3553b7d..2a466a0 100644 --- a/scripts/gdb/vmlinux-gdb.py +++ b/scripts/gdb/vmlinux-gdb.py @@ -23,3 +23,4 @@ if gdb_version < "7.1": else: import utils import symbols + import module -- 1.7.3.4
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