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.

There will be some smaller follow-on patches.  The changes to tools/lldb-server are
verbose and I'm not thrilled with having to skip all of these tests manually.
There are a few places where I'm making the assumption that "armv7", "armv7k", "arm64"
means it's an ios device, and I need to review & clean these up with an OS check
as well.  (Android will show up as "arm" and "aarch64" so by pure luck they shouldn't
cause problems, but it's not an assumption I want to rely on).

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: 313932

1 files changed, 6 insertions, 0 deletions

diff --git a/lldb/packages/Python/lldbsuite/test/functionalities/exec/TestExec.py b/lldb/packages/Python/lldbsuite/test/functionalities/exec/TestExec.py
index 65271c3894b..fcab7bba6e2 100644
--- a/lldb/packages/Python/lldbsuite/test/functionalities/exec/TestExec.py
+++ b/lldb/packages/Python/lldbsuite/test/functionalities/exec/TestExec.py
@@ -28,6 +28,7 @@ class ExecTestCase(TestBase):
 
     @skipUnlessDarwin
     @expectedFailureAll(archs=['i386'], bugnumber="rdar://28656532")
+    @expectedFailureAll(oslist=["ios", "tvos", "watchos", "bridgeos"], bugnumber="rdar://problem/34559552") # this exec test has problems on ios systems
     def test(self):
         if self.getArchitecture() == 'x86_64':
             source = os.path.join(os.getcwd(), "main.cpp")
@@ -97,5 +98,10 @@ class ExecTestCase(TestBase):
 
             threads = lldbutil.get_threads_stopped_at_breakpoint(
                 process, breakpoint)
+            if self.TraceOn():
+                for t in process.threads:
+                    print(t)
+                    if t.GetStopReason() != lldb.eStopReasonBreakpoint:
+                        self.runCmd("bt")
             self.assertTrue(len(threads) == 1,
                             "Stopped at breakpoint in exec'ed process.")