llvm-capstone/lldb/utils/test/run-until-faulted.py
Kate Stone b9c1b51e45 *** This commit represents a complete reformatting of the LLDB source code
*** to conform to clang-format’s LLVM style.  This kind of mass change has
*** two obvious implications:

Firstly, merging this particular commit into a downstream fork may be a huge
effort.  Alternatively, it may be worth merging all changes up to this commit,
performing the same reformatting operation locally, and then discarding the
merge for this particular commit.  The commands used to accomplish this
reformatting were as follows (with current working directory as the root of
the repository):

    find . \( -iname "*.c" -or -iname "*.cpp" -or -iname "*.h" -or -iname "*.mm" \) -exec clang-format -i {} +
    find . -iname "*.py" -exec autopep8 --in-place --aggressive --aggressive {} + ;

The version of clang-format used was 3.9.0, and autopep8 was 1.2.4.

Secondly, “blame” style tools will generally point to this commit instead of
a meaningful prior commit.  There are alternatives available that will attempt
to look through this change and find the appropriate prior commit.  YMMV.

llvm-svn: 280751
2016-09-06 20:57:50 +00:00

131 lines
3.6 KiB
Python
Executable File

#!/usr/bin/env python
"""
Run a program via lldb until it fails.
The lldb executable is located via your PATH env variable, if not specified.
"""
import os
import sys
from optparse import OptionParser
def is_exe(fpath):
"""Check whether fpath is an executable."""
return os.path.isfile(fpath) and os.access(fpath, os.X_OK)
def which(program):
"""Find the full path to a program, or return None."""
fpath, fname = os.path.split(program)
if fpath:
if is_exe(program):
return program
else:
for path in os.environ["PATH"].split(os.pathsep):
exe_file = os.path.join(path, program)
if is_exe(exe_file):
return exe_file
return None
def do_lldb_launch_loop(lldb_command, exe, exe_options):
from cStringIO import StringIO
import pexpect
import time
prompt = "\(lldb\) "
lldb = pexpect.spawn(lldb_command)
# Turn on logging for what lldb sends back.
lldb.logfile_read = sys.stdout
lldb.expect(prompt)
# Now issue the file command.
# print "sending 'file %s' command..." % exe
lldb.sendline('file %s' % exe)
lldb.expect(prompt)
# Loop until it faults....
count = 0
# while True:
# count = count + 1
for i in range(100):
count = i
# print "sending 'process launch -- %s' command... (iteration: %d)" %
# (exe_options, count)
lldb.sendline('process launch -- %s' % exe_options)
index = lldb.expect(['Process .* exited with status',
'Process .* stopped',
pexpect.TIMEOUT])
if index == 0:
# We'll try again later.
time.sleep(3)
elif index == 1:
# Perfect, our process had stopped; break out of the loop.
break
elif index == 2:
# Something went wrong.
print "TIMEOUT occurred:", str(lldb)
# Give control of lldb shell to the user.
lldb.interact()
def main():
# This is to set up the Python path to include the pexpect-2.4 dir.
# Remember to update this when/if things change.
scriptPath = sys.path[0]
sys.path.append(
os.path.join(
scriptPath,
os.pardir,
os.pardir,
'test',
'pexpect-2.4'))
parser = OptionParser(usage="""\
%prog [options]
Run a program via lldb until it fails.
The lldb executable is located via your PATH env variable, if not specified.\
""")
parser.add_option('-l', '--lldb-command',
type='string', action='store', metavar='LLDB_COMMAND',
default='lldb', dest='lldb_command',
help='Full path to your lldb command')
parser.add_option(
'-e',
'--executable',
type='string',
action='store',
dest='exe',
help="""(Mandatory) The executable to launch via lldb.""")
parser.add_option(
'-o',
'--options',
type='string',
action='store',
default='',
dest='exe_options',
help="""The args/options passed to the launched program, if specified.""")
opts, args = parser.parse_args()
lldb_command = which(opts.lldb_command)
if not opts.exe:
parser.print_help()
sys.exit(1)
exe = opts.exe
exe_options = opts.exe_options
# We have parsed the options.
print "lldb command:", lldb_command
print "executable:", exe
print "executable options:", exe_options
do_lldb_launch_loop(lldb_command, exe, exe_options)
if __name__ == '__main__':
main()