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Since tracing_on indicates only "1" (default) or "0", ftrace2bconf.sh
only need to check the value is "0".
Link: https://lkml.kernel.org/r/163077087144.222577.6888011847727968737.stgit@devnote2
Fixes: 55ed4560774d ("tools/bootconfig: Add tracing_on support to helper scripts")
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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Use per-group/all enable option instead of ftrace.events option.
This will make the bootconfig file more readable.
Link: https://lkml.kernel.org/r/162856129436.203126.12462564671412940618.stgit@devnote2
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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Add ftrace.instance.INSTANCE.tracing_on support to ftrace2bconf.sh
and bconf2ftrace.sh.
commit 8490db06f914 ("tracing/boot: Add per-instance tracing_on
option support") added the per-instance tracing_on option,
but forgot to update the helper scripts.
Link: https://lkml.kernel.org/r/160749166410.3497930.14204335886811029800.stgit@devnote2
Cc: stable@vger.kernel.org
Fixes: 8490db06f914 ("tracing/boot: Add per-instance tracing_on option support")
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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Add a ftrace2bconf.sh under tools/bootconfig/scripts which generates
a bootconfig file from the current ftrace settings.
To read the ftrace settings, ftrace2bconf.sh requires the root
privilege (or sudo). The ftrace2bconf.sh will output the bootconfig
to stdout and error messages to stderr, so usually you'll run it as
# ftrace2bconf.sh > ftrace.bconf
Note that some ftrace configurations are not supported. For example,
function-call/callgraph trace/notrace settings are not supported because
the wildcard has been expanded and lost in the ftrace anymore.
Link: https://lkml.kernel.org/r/159704852163.175360.16738029520293360558.stgit@devnote2
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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