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Handle recursive values. Add comments.

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llvm-svn: 121184
This commit is contained in:
Devang Patel 2010-12-07 21:12:05 +00:00
parent a23e10f29d
commit 3d49ec3ae7
1 changed files with 53 additions and 23 deletions
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76
utils/CollectDebugInfoUsingLLDB.py
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@ -1,11 +1,24 @@
#!/usr/bin/python
#----------------------------------------------------------------------
#
# Be sure to add the python path that points to the LLDB shared library.
# On MacOSX csh, tcsh:
# setenv PYTHONPATH /Developer/Library/PrivateFrameworks/LLDB.framework/Resources/Python
# On MacOSX sh, bash:
# export PYTHONPATH=/Developer/Library/PrivateFrameworks/LLDB.framework/Resources/Python
#
# This script collect debugging information using LLDB. This script is
# used by TEST=dbg in llvm testsuite to measure quality of debug info in
# optimized builds.
#
# Usage:
# export PYTHONPATH=...
# ./CollectDebugInfUsingLLDB.py program bp_file out_file
# program - Executable program with debug info.
# bp_file - Simple text file listing breakpoints.
# <absolute file name> <line number>
# out_file - Output file where the debug info will be emitted.
#----------------------------------------------------------------------
import lldb
@ -13,26 +26,46 @@ import os
import sys
import time
# AlreadyPrintedValues - A place to keep track of recursive values.
AlreadyPrintedValues = {}
# ISAlreadyPrinted - Return true if value is already printed.
def IsAlreadyPrinted(value_name):
if AlreadyPrintedValues.get(value_name) is None:
AlreadyPrintedValues[value_name] = 1
return False
return True
# print_var_value - Print a variable's value.
def print_var_value (v, file, frame):
if v.GetNumChildren() > 0:
for c in range(v.GetNumChildren()):
if v.GetChildAtIndex(c) is None:
if v.IsValid() == False:
return
if IsAlreadyPrinted(v.GetName()):
return
total_children = v.GetNumChildren()
if total_children > 0:
c = 0
while (c < total_children) :
child = v.GetChildAtIndex(c)
if child is None:
file.write("None")
else:
if (v.GetChildAtIndex(c).GetName()) is None:
else:
if (child.GetName()) is None:
file.write("None")
else:
file.write(v.GetChildAtIndex(c).GetName())
file.write(child.GetName())
file.write('=')
print_var_value(v.GetChildAtIndex(c), file, frame)
print_var_value(child, file, frame)
file.write(',')
c = c + 1
else:
if v.GetValue(frame) is None:
file.write("None")
else:
file.write(v.GetValue(frame))
# print_vars - Print variable values in output file.
def print_vars (vars, fname, line, file, frame, target, thread):
# disable this thread.
count = thread.GetStopReasonDataCount()
@ -51,7 +84,6 @@ def print_vars (vars, fname, line, file, frame, target, thread):
if bp_loc.IsValid():
bid = bp_loc.GetBreakPoint().GetID()
tid = bp_loc.ThreadGetID()
# print " { ", bp_loc.ThreadGetID(), " : ", bp_loc.GetBreakPoint().GetID(), " }} "
bp_loc.SetEnabled(False);
for i in range(vars.GetSize()):
@ -67,9 +99,11 @@ def print_vars (vars, fname, line, file, frame, target, thread):
v = vars.GetValueAtIndex(i)
file.write(v.GetName())
file.write(' ')
AlreadyPrintedValues.clear()
print_var_value (v, file, frame)
file.write('\n')
# set_breakpoints - set breakpoints as listed in input file.
def set_breakpoints (target, breakpoint_filename):
f = open(breakpoint_filename, "r")
lines = f.readlines()
@ -79,21 +113,17 @@ def set_breakpoints (target, breakpoint_filename):
bp = target.BreakpointCreateByLocation (str(c[0]), int(c[1]))
f.close()
def stop_at_breakpoint (process):
# stopeed_at_breakpoint - Return True if process is stopeed at a
# breakpoint.
def stopped_at_breakpoint (process):
if process.IsValid():
state = process.GetState()
if state != lldb.eStateStopped:
return lldb.eStateInvalid
thread = process.GetThreadAtIndex(0)
if thread.IsValid():
if thread.GetStopReason() == lldb.eStopReasonBreakpoint:
return lldb.eStateStopped
else:
return lldb.eStateInvalid
else:
return lldb.eStateInvalid
else:
return lldb.eStateInvalid
if state == lldb.eStateStopped:
thread = process.GetThreadAtIndex(0)
if thread.IsValid():
if thread.GetStopReason() == lldb.eStopReasonBreakpoint:
return True
return False
# Create a new debugger instance
debugger = lldb.SBDebugger.Create()
@ -120,7 +150,7 @@ if target.IsValid():
process = target.LaunchProcess ([''], [''], "/dev/stdout", 0, False)
file=open(str(sys.argv[3]), 'w')
# Make sure the launch went ok
while stop_at_breakpoint(process) == lldb.eStateStopped:
while stopped_at_breakpoint(process):
thread = process.GetThreadAtIndex (0)
frame = thread.GetFrameAtIndex (0)
if frame.IsValid():