diff --git a/tools/gdb/dmesg.py b/tools/gdb/dmesg.py new file mode 100644 index 00000000000..ebdbc4beb19 --- /dev/null +++ b/tools/gdb/dmesg.py @@ -0,0 +1,49 @@ +############################################################################ +# tools/gdb/dmesg.py +# +# Licensed to the Apache Software Foundation (ASF) under one or more +# contributor license agreements. See the NOTICE file distributed with +# this work for additional information regarding copyright ownership. The +# ASF licenses this file to you under the Apache License, Version 2.0 (the +# "License"); you may not use this file except in compliance with the +# License. You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +# License for the specific language governing permissions and limitations +# under the License. +# +############################################################################ + +import gdb +import utils + +CONFIG_RAMLOG_SYSLOG = utils.get_symbol_value("CONFIG_RAMLOG_SYSLOG") + + +class Dmesg(gdb.Command): + def __init__(self): + super(Dmesg, self).__init__("dmesg", gdb.COMMAND_USER) + + def invoke(self, args, from_tty): + sysdev = utils.gdb_eval_or_none("g_sysdev") + if not sysdev: + gdb.write("RAM log not available.\n") + return + + rl_head = sysdev["rl_header"] + rl_bufsize = sysdev["rl_bufsize"] + gdb.write("Ramlog have %d bytes to show\n" % rl_bufsize) + + inf = gdb.selected_inferior() + buf = inf.read_memory(rl_head["rl_buffer"], rl_bufsize) + clean_data = bytes(buf).replace(b"\x00", "␀".encode("utf-8")) + gdb.write(clean_data.decode("utf-8")) + gdb.write("\n") + + +if CONFIG_RAMLOG_SYSLOG: + Dmesg()