Jason Molenda 0187a8f6f9 Initial patchset to get the testsuite running against armv7 and arm64 iOS devices.
Normal customer devices won't be able to run these devices, we're hoping to get
a public facing bot set up at some point.  Both devices pass the testsuite without
any errors or failures.

I have seen some instability with the armv7 test runs, I may submit additional patches
to address this.  arm64 looks good.

I'll be watching the bots for the rest of today; if any problems are introduced by
this patch I'll revert it - if anyone sees a problem with their bot that I don't
see, please do the same.  I know it's a rather large patch.

One change I had to make specifically for iOS devices was that debugserver can't 
create files.  There were several tests that launch the inferior process redirecting
its output to a file, then they retrieve the file.  They were not trying to test
file redirection in these tests, so I rewrote those to write their output to a file
directly.

llvm-svn: 314038
2017-09-22 22:34:53 +00:00

96 lines
3.0 KiB
Python

"""
Test that we can backtrace correctly with 'sigtramp' functions on the stack
"""
from __future__ import print_function
import os
import time
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class SigtrampUnwind(TestBase):
mydir = TestBase.compute_mydir(__file__)
# On different platforms the "_sigtramp" and "__kill" frames are likely to be different.
# This test could probably be adapted to run on linux/*bsd easily enough.
@skipUnlessDarwin
@expectedFailureAll(oslist=["ios", "tvos", "bridgeos"], bugnumber="<rdar://problem/34006863>") # lldb skips 1 frame on arm64 above _sigtramp
def test(self):
"""Test that we can backtrace correctly with _sigtramp on the stack"""
self.build()
self.setTearDownCleanup()
exe = os.path.join(os.getcwd(), "a.out")
target = self.dbg.CreateTarget(exe)
self.assertTrue(target, VALID_TARGET)
lldbutil.run_break_set_by_file_and_line(self, "main.c", line_number(
'main.c', '// Set breakpoint here'), num_expected_locations=1)
process = target.LaunchSimple(
None, None, self.get_process_working_directory())
if not process:
self.fail("SBTarget.Launch() failed")
if process.GetState() != lldb.eStateStopped:
self.fail("Process should be in the 'stopped' state, "
"instead the actual state is: '%s'" %
lldbutil.state_type_to_str(process.GetState()))
self.expect(
"pro handle -n false -p true -s false SIGUSR1",
"Have lldb pass SIGUSR1 signals",
substrs=[
"SIGUSR1",
"true",
"false",
"false"])
lldbutil.run_break_set_by_symbol(
self,
"handler",
num_expected_locations=1,
module_name="a.out")
self.runCmd("continue")
thread = process.GetThreadAtIndex(0)
found_handler = False
found_sigtramp = False
found_kill = False
found_main = False
for f in thread.frames:
if f.GetFunctionName() == "handler":
found_handler = True
if f.GetFunctionName() == "_sigtramp":
found_sigtramp = True
if f.GetFunctionName() == "__kill":
found_kill = True
if f.GetFunctionName() == "main":
found_main = True
if self.TraceOn():
print("Backtrace once we're stopped:")
for f in thread.frames:
print(" %d %s" % (f.GetFrameID(), f.GetFunctionName()))
if not found_handler:
self.fail("Unable to find handler() in backtrace.")
if not found_sigtramp:
self.fail("Unable to find _sigtramp() in backtrace.")
if not found_kill:
self.fail("Unable to find kill() in backtrace.")
if not found_main:
self.fail("Unable to find main() in backtrace.")