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-rwxr-xr-xlldb/examples/python/stacks.py32
1 files changed, 21 insertions, 11 deletions
diff --git a/lldb/examples/python/stacks.py b/lldb/examples/python/stacks.py
index 06907e159d7..fec879993d9 100755
--- a/lldb/examples/python/stacks.py
+++ b/lldb/examples/python/stacks.py
@@ -5,20 +5,28 @@ import commands
import optparse
import shlex
+
def stack_frames(debugger, command, result, dict):
command_args = shlex.split(command)
usage = "usage: %prog [options] <PATH> [PATH ...]"
- description='''This command will enumerate all stack frames, print the stack size for each, and print an aggregation of which functions have the largest stack frame sizes at the end.'''
- parser = optparse.OptionParser(description=description, prog='ls',usage=usage)
- parser.add_option('-v', '--verbose', action='store_true', dest='verbose', help='display verbose debug info', default=False)
+ description = '''This command will enumerate all stack frames, print the stack size for each, and print an aggregation of which functions have the largest stack frame sizes at the end.'''
+ parser = optparse.OptionParser(
+ description=description, prog='ls', usage=usage)
+ parser.add_option(
+ '-v',
+ '--verbose',
+ action='store_true',
+ dest='verbose',
+ help='display verbose debug info',
+ default=False)
try:
(options, args) = parser.parse_args(command_args)
except:
return
-
+
target = debugger.GetSelectedTarget()
process = target.GetProcess()
-
+
frame_info = {}
for thread in process:
last_frame = None
@@ -28,12 +36,13 @@ def stack_frames(debugger, command, result, dict):
frame_size = 0
if frame.idx == 1:
if frame.fp == last_frame.fp:
- # No frame one the first frame (might be right at the entry point)
+ # No frame one the first frame (might be right at the
+ # entry point)
first_frame_size = 0
frame_size = frame.fp - frame.sp
else:
# First frame that has a valid size
- first_frame_size = last_frame.fp - last_frame.sp
+ first_frame_size = last_frame.fp - last_frame.sp
print "<%#7x> %s" % (first_frame_size, last_frame)
if first_frame_size:
name = last_frame.name
@@ -43,7 +52,7 @@ def stack_frames(debugger, command, result, dict):
frame_info[name] += first_frame_size
else:
# Second or higher frame
- frame_size = frame.fp - last_frame.fp
+ frame_size = frame.fp - last_frame.fp
print "<%#7x> %s" % (frame_size, frame)
if frame_size > 0:
name = frame.name
@@ -53,7 +62,8 @@ def stack_frames(debugger, command, result, dict):
frame_info[name] += frame_size
last_frame = frame
print frame_info
-
-lldb.debugger.HandleCommand("command script add -f stacks.stack_frames stack_frames")
-print "A new command called 'stack_frames' was added, type 'stack_frames --help' for more information." \ No newline at end of file
+
+lldb.debugger.HandleCommand(
+ "command script add -f stacks.stack_frames stack_frames")
+print "A new command called 'stack_frames' was added, type 'stack_frames --help' for more information."
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