mirror of
https://github.com/Gericom/teak-llvm.git
synced 2025-06-26 06:48:51 -04:00
95c453a221
For convenience, we had added the folder that dotest.py was in to sys.path, so that we could easily write things like `import lldbutil` from anywhere and any test. This introduces a subtle problem when using Python's package system, because when unittest2 imports a particular test suite, the test suite is detached from the package. Thus, writing "import lldbutil" from dotest imports it as part of the package, and writing the same line from a test does a fresh import since the importing module was not part of the same package. The real way to fix this is to use absolute imports everywhere. Instead of writing "import lldbutil", we need to write "import lldbsuite.test.util". This patch fixes up that and all other similar cases, and additionally removes the script directory from sys.path to ensure that this can't happen again. llvm-svn: 251886
111 lines
4.4 KiB
Python
111 lines
4.4 KiB
Python
"""
|
|
Test the lldb disassemble command on lib stdc++.
|
|
"""
|
|
|
|
from __future__ import print_function
|
|
|
|
import use_lldb_suite
|
|
|
|
import unittest2
|
|
import os, time
|
|
import lldb
|
|
from lldbsuite.test.lldbtest import *
|
|
import lldbsuite.test.lldbutil as lldbutil
|
|
|
|
class StdCXXDisassembleTestCase(TestBase):
|
|
|
|
mydir = TestBase.compute_mydir(__file__)
|
|
|
|
def setUp(self):
|
|
# Call super's setUp().
|
|
TestBase.setUp(self)
|
|
# Find the line number to break inside main().
|
|
self.line = line_number('main.cpp', '// Set break point at this line.')
|
|
|
|
# rdar://problem/8504895
|
|
# Crash while doing 'disassemble -n "-[NSNumber descriptionWithLocale:]"
|
|
@unittest2.skipIf(TestBase.skipLongRunningTest(), "Skip this long running test")
|
|
def test_stdcxx_disasm(self):
|
|
"""Do 'disassemble' on each and every 'Code' symbol entry from the std c++ lib."""
|
|
self.build()
|
|
exe = os.path.join(os.getcwd(), "a.out")
|
|
self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
|
|
|
|
# rdar://problem/8543077
|
|
# test/stl: clang built binaries results in the breakpoint locations = 3,
|
|
# is this a problem with clang generated debug info?
|
|
#
|
|
# Break on line 13 of main.cpp.
|
|
lldbutil.run_break_set_by_file_and_line (self, "main.cpp", self.line, num_expected_locations=1, loc_exact=True)
|
|
|
|
self.runCmd("run", RUN_SUCCEEDED)
|
|
|
|
# Now let's get the target as well as the process objects.
|
|
target = self.dbg.GetSelectedTarget()
|
|
process = target.GetProcess()
|
|
|
|
# The process should be in a 'stopped' state.
|
|
self.expect(str(process), STOPPED_DUE_TO_BREAKPOINT, exe=False,
|
|
substrs = ["a.out",
|
|
"stopped"])
|
|
|
|
# Disassemble the functions on the call stack.
|
|
self.runCmd("thread backtrace")
|
|
thread = process.GetThreadAtIndex(0)
|
|
depth = thread.GetNumFrames()
|
|
for i in range(depth - 1):
|
|
frame = thread.GetFrameAtIndex(i)
|
|
function = frame.GetFunction()
|
|
self.runCmd("disassemble -n '%s'" % function.GetName())
|
|
|
|
lib_stdcxx = "FAILHORRIBLYHERE"
|
|
# Iterate through the available modules, looking for stdc++ library...
|
|
for i in range(target.GetNumModules()):
|
|
module = target.GetModuleAtIndex(i)
|
|
fs = module.GetFileSpec()
|
|
if (fs.GetFilename().startswith("libstdc++") or fs.GetFilename().startswith("libc++")):
|
|
lib_stdcxx = str(fs)
|
|
break
|
|
|
|
# At this point, lib_stdcxx is the full path to the stdc++ library and
|
|
# module is the corresponding SBModule.
|
|
|
|
self.expect(lib_stdcxx, "Libraray StdC++ is located", exe=False,
|
|
substrs = ["lib"])
|
|
|
|
self.runCmd("image dump symtab '%s'" % lib_stdcxx)
|
|
raw_output = self.res.GetOutput()
|
|
# Now, look for every 'Code' symbol and feed its load address into the
|
|
# command: 'disassemble -s load_address -e end_address', where the
|
|
# end_address is taken from the next consecutive 'Code' symbol entry's
|
|
# load address.
|
|
#
|
|
# The load address column comes after the file address column, with both
|
|
# looks like '0xhhhhhhhh', i.e., 8 hexadecimal digits.
|
|
codeRE = re.compile(r"""
|
|
\ Code\ {9} # ' Code' followed by 9 SPCs,
|
|
0x[0-9a-f]{16} # the file address column, and
|
|
\ # a SPC, and
|
|
(0x[0-9a-f]{16}) # the load address column, and
|
|
.* # the rest.
|
|
""", re.VERBOSE)
|
|
# Maintain a start address variable; if we arrive at a consecutive Code
|
|
# entry, then the load address of the that entry is fed as the end
|
|
# address to the 'disassemble -s SA -e LA' command.
|
|
SA = None
|
|
for line in raw_output.split(os.linesep):
|
|
match = codeRE.search(line)
|
|
if match:
|
|
LA = match.group(1)
|
|
if self.TraceOn():
|
|
print("line:", line)
|
|
print("load address:", LA)
|
|
print("SA:", SA)
|
|
if SA and LA:
|
|
if int(LA, 16) > int(SA, 16):
|
|
self.runCmd("disassemble -s %s -e %s" % (SA, LA))
|
|
SA = LA
|
|
else:
|
|
# This entry is not a Code entry. Reset SA = None.
|
|
SA = None
|