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authorJan Kiszka <jan.kiszka@siemens.com>2015-02-17 13:46:55 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2015-02-17 14:34:53 -0800
commit7b599ef535a7faef53034fb7fb150b61057efe28 (patch)
tree9aa4adc57d1fc4cbd42126c7b606f9588ae93eee /scripts/gdb/linux/modules.py
parentscripts/gdb: add automatic symbol reloading on module insertion (diff)
downloadlinux-dev-7b599ef535a7faef53034fb7fb150b61057efe28.tar.xz
linux-dev-7b599ef535a7faef53034fb7fb150b61057efe28.zip
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 <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>
Diffstat (limited to '')
-rw-r--r--scripts/gdb/linux/modules.py28
1 files changed, 28 insertions, 0 deletions
diff --git a/scripts/gdb/linux/modules.py b/scripts/gdb/linux/modules.py
index 8a65c3d5eecb..531f7632d03f 100644
--- a/scripts/gdb/linux/modules.py
+++ b/scripts/gdb/linux/modules.py
@@ -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()