[PATCHv3 10/13] scripts/gdb: Add cpu iterators

[Kieran Bingham]

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.

Signed-off-by: Kieran Bingham <kieran.bingham@xxxxxxxxxx>
---
 scripts/gdb/linux/cpus.py | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/scripts/gdb/linux/cpus.py b/scripts/gdb/linux/cpus.py
index 4297b83fedef..59e24472c507 100644
--- a/scripts/gdb/linux/cpus.py
+++ b/scripts/gdb/linux/cpus.py
@@ -100,6 +100,27 @@ 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 print_cpus():
+    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())))
+
+
 class PerCpu(gdb.Function):
     """Return per-cpu variable.
 
-- 
2.5.0