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utilities: Add smap related command and iterator to the GDB script

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Adds "ovs_dump_smap <struct smap *>" command

Example output:

Breakpoint 1, trtcm_policer_qos_construct (details=0x135bad0, conf=0x7ffd31f5da28) at lib/netdev-dpdk.c:4154
(gdb) ovs_dump_smap 0x135bad0
cbs: 2048
cir: 151800
eir: 151800
pbs: 2048

Signed-off-by: Eelco Chaudron <echaudro@redhat.com>
Signed-off-by: Ben Pfaff <blp@ovn.org>
This commit is contained in:
Eelco Chaudron
2018-11-22 16:18:14 +01:00
committed by Ben Pfaff
parent b1331295ea
commit cd5b89a5a9
1 changed files with 53 additions and 3 deletions
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56
utilities/gdb/ovs_gdb.py
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@@ -30,6 +30,7 @@
# - ovs_dump_netdev_provider
# - ovs_dump_ovs_list <struct ovs_list *> {[<structure>] [<member>] {dump}]}
# - ovs_dump_simap <struct simap *>
# - ovs_dump_smap <struct smap *>
# - ovs_dump_udpif_keys {<udpif_name>|<udpif_address>} {short}
# - ovs_show_fdb {[<bridge_name>] {dbg} {hash}}
# - ovs_show_upcall {dbg}
@@ -319,6 +320,19 @@ class ForEachSIMAP(ForEachHMAP):
return node['name'], node['data']
#
# Class that will provide an iterator over an OVS smap.
#
class ForEachSMAP(ForEachHMAP):
def __init__(self, shash):
super(ForEachSMAP, self).__init__(shash['map'],
"struct smap_node", "node")
def next(self):
node = super(ForEachSMAP, self).next()
return node['key'], node['value']
#
# Class that will provide an iterator over an OVS list.
#
@@ -734,8 +748,8 @@ class CmdDumpOvsList(gdb.Command):
# Implements the GDB "ovs_dump_simap" command
#
class CmdDumpSimap(gdb.Command):
"""Dump all nodes of an ovs_list give
Usage: ovs_dump_ovs_list <struct simap *>
"""Dump all key, value entries of a simap
Usage: ovs_dump_simap <struct simap *>
"""
def __init__(self):
@@ -766,7 +780,42 @@ class CmdDumpSimap(gdb.Command):
#
# Implements the GDB "ovs_dump_simap" command
# Implements the GDB "ovs_dump_smap" command
#
class CmdDumpSmap(gdb.Command):
"""Dump all key, value pairs of a smap
Usage: ovs_dump_smap <struct smap *>
"""
def __init__(self):
super(CmdDumpSmap, self).__init__("ovs_dump_smap",
gdb.COMMAND_DATA)
def invoke(self, arg, from_tty):
arg_list = gdb.string_to_argv(arg)
if len(arg_list) != 1:
print("ERROR: Missing argument!\n")
print(self.__doc__)
return
smap = gdb.parse_and_eval(arg_list[0]).cast(
gdb.lookup_type('struct smap').pointer())
values = dict()
max_key_len = 0
for key, value in ForEachSMAP(smap.dereference()):
values[key.string()] = value.string()
if len(key.string()) > max_key_len:
max_key_len = len(key.string())
for key in sorted(values.iterkeys()):
print("{}: {}".format(key.ljust(max_key_len),
values[key]))
#
# Implements the GDB "ovs_dump_udpif_keys" command
#
class CmdDumpUdpifKeys(gdb.Command):
"""Dump all nodes of an ovs_list give
@@ -1124,6 +1173,7 @@ CmdDumpNetdev()
CmdDumpNetdevProvider()
CmdDumpOvsList()
CmdDumpSimap()
CmdDumpSmap()
CmdDumpUdpifKeys()
CmdShowFDB()
CmdShowUpcall()