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Commit 5403727f authored by Jan Kiszka's avatar Jan Kiszka Committed by Linus Torvalds
Browse files

scripts/gdb: add lx-lsmod command 



This adds a lsmod-like command to list all currently loaded modules of the
target.

Signed-off-by: default 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 3d4cd9c9

scripts/gdb/linux/modules.py

+45 −1
Original line number Diff line number Diff line
@@ -13,7 +13,7 @@ 


import gdb



from linux import utils

from linux import cpus, utils





module_type = utils.CachedType("struct module")
@@ -65,3 +65,47 @@ of the target and return that module variable which MODULE matches.""" 




LxModule()





class LxLsmod(gdb.Command):

    """List currently loaded modules."""



    _module_use_type = utils.CachedType("struct module_use")



    def __init__(self):

        super(LxLsmod, self).__init__("lx-lsmod", gdb.COMMAND_DATA)



    def invoke(self, arg, from_tty):

        gdb.write(

            "Address{0}    Module                  Size  Used by\n".format(

                "        " if utils.get_long_type().sizeof == 8 else ""))



        for module in ModuleList():

            ref = 0

            module_refptr = module['refptr']

            for cpu in cpus.CpuList("cpu_possible_mask"):

                refptr = cpus.per_cpu(module_refptr, cpu)

                ref += refptr['incs']

                ref -= refptr['decs']



            gdb.write("{address} {name:<19} {size:>8}  {ref}".format(

                address=str(module['module_core']).split()[0],

                name=module['name'].string(),

                size=module['core_size'],

                ref=ref))



            source_list = module['source_list']

            t = self._module_use_type.get_type().pointer()

            entry = source_list['next']

            first = True

            while entry != source_list.address:

                use = utils.container_of(entry, t, "source_list")

                gdb.write("{separator}{name}".format(

                    separator=" " if first else ",",

                    name=use['source']['name'].string()))

                first = False

                entry = entry['next']

            gdb.write("\n")





LxLsmod()