提交 b1503934 编写于 作者: K Kieran Bingham 提交者: Linus Torvalds

scripts/gdb: add cpu iterators

The linux kernel provides macro's for iterating against values from the
cpu_list masks.  By providing some commonly used masks, we can mirror
the kernels helper macros with easy to use generators.

Link: http://lkml.kernel.org/r/d045c6599771ada1999d49612ee30fd2f9acf17f.1462865983.git.jan.kiszka@siemens.comSigned-off-by: NKieran Bingham <kieran.bingham@linaro.org>
Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
上级 c1a15399
......@@ -100,6 +100,44 @@ def cpu_list(mask_name):
yield cpu
def each_online_cpu():
for cpu in cpu_list("__cpu_online_mask"):
yield cpu
def each_present_cpu():
for cpu in cpu_list("__cpu_present_mask"):
yield cpu
def each_possible_cpu():
for cpu in cpu_list("__cpu_possible_mask"):
yield cpu
def each_active_cpu():
for cpu in cpu_list("__cpu_active_mask"):
yield cpu
class LxCpus(gdb.Command):
"""List CPU status arrays
Displays the known state of each CPU based on the kernel masks
and can help identify the state of hotplugged CPUs"""
def __init__(self):
super(LxCpus, self).__init__("lx-cpus", gdb.COMMAND_DATA)
def invoke(self, arg, from_tty):
gdb.write("Possible CPUs : {}\n".format(list(each_possible_cpu())))
gdb.write("Present CPUs : {}\n".format(list(each_present_cpu())))
gdb.write("Online CPUs : {}\n".format(list(each_online_cpu())))
gdb.write("Active CPUs : {}\n".format(list(each_active_cpu())))
LxCpus()
class PerCpu(gdb.Function):
"""Return per-cpu variable.
......
Markdown is supported
0% .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑!
想要评论请 注册