Messages in this thread Patch in this message | | | From | Jan Kiszka <> | Subject | [PATCH v7 18/21] scripts/gdb: Add lx_current convenience function | Date | Tue, 12 Nov 2013 08:14:36 +0100 |
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This is a shorthand for *$lx_per_cpu("current_task"), i.e. a convenience function to retrieve the currently running task of the active context.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> --- scripts/gdb/linux/cpus.py | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)
diff --git a/scripts/gdb/linux/cpus.py b/scripts/gdb/linux/cpus.py index 18337e0..b683da9 100644 --- a/scripts/gdb/linux/cpus.py +++ b/scripts/gdb/linux/cpus.py @@ -66,3 +66,20 @@ Note that VAR has to be quoted as string.""" PerCpu() + + +class LxCurrentFunc(gdb.Function): + """Return current task. + +$lx_current([CPU]): Return the per-cpu task variable for the given CPU +number. If CPU is omitted, the CPU of the current context is used.""" + + def __init__(self): + super(LxCurrentFunc, self).__init__("lx_current") + + def invoke(self, cpu=-1): + var_ptr = gdb.parse_and_eval("¤t_task") + return per_cpu(var_ptr, cpu).dereference() + + +LxCurrentFunc() -- 1.8.1.1.298.ge7eed54
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