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

2 files changed, 4 insertions, 0 deletions

diff --git a/lldb/packages/Python/lldbsuite/test/functionalities/process_attach/TestProcessAttach.py b/lldb/packages/Python/lldbsuite/test/functionalities/process_attach/TestProcessAttach.py
index f3910f12bab..c4d372cd3d3 100644
--- a/lldb/packages/Python/lldbsuite/test/functionalities/process_attach/TestProcessAttach.py
+++ b/lldb/packages/Python/lldbsuite/test/functionalities/process_attach/TestProcessAttach.py
@@ -23,6 +23,7 @@ class ProcessAttachTestCase(TestBase):
     NO_DEBUG_INFO_TESTCASE = True
 
     @skipIfiOSSimulator
+    @expectedFailureAll(oslist=['ios', 'watchos', 'tvos', 'bridgeos'], bugnumber="<rdar://problem/34538611>") # old lldb-server has race condition, launching an inferior and then launching debugserver in quick succession sometimes fails
     def test_attach_to_process_by_id(self):
         """Test attach by process id"""
         self.build()
@@ -39,6 +40,7 @@ class ProcessAttachTestCase(TestBase):
         process = target.GetProcess()
         self.assertTrue(process, PROCESS_IS_VALID)
 
+    @expectedFailureAll(oslist=['ios', 'watchos', 'tvos', 'bridgeos'], bugnumber="<rdar://problem/34538611>") # old lldb-server has race condition, launching an inferior and then launching debugserver in quick succession sometimes fails
     def test_attach_to_process_from_different_dir_by_id(self):
         """Test attach by process id"""
         try:
@@ -65,6 +67,7 @@ class ProcessAttachTestCase(TestBase):
         process = target.GetProcess()
         self.assertTrue(process, PROCESS_IS_VALID)
 
+    @expectedFailureAll(oslist=['ios', 'watchos', 'tvos', 'bridgeos'], bugnumber="<rdar://problem/34538611>") # old lldb-server has race condition, launching an inferior and then launching debugserver in quick succession sometimes fails
     def test_attach_to_process_by_name(self):
         """Test attach by process name"""
         self.build()
diff --git a/lldb/packages/Python/lldbsuite/test/functionalities/process_attach/attach_denied/TestAttachDenied.py b/lldb/packages/Python/lldbsuite/test/functionalities/process_attach/attach_denied/TestAttachDenied.py
index 071f5d57c78..5465b7155f5 100644
--- a/lldb/packages/Python/lldbsuite/test/functionalities/process_attach/attach_denied/TestAttachDenied.py
+++ b/lldb/packages/Python/lldbsuite/test/functionalities/process_attach/attach_denied/TestAttachDenied.py
@@ -21,6 +21,7 @@ class AttachDeniedTestCase(TestBase):
 
     @skipIfWindows
     @skipIfiOSSimulator
+    @skipIfDarwinEmbedded  # ptrace(ATTACH_REQUEST...) won't work on ios/tvos/etc
     def test_attach_to_process_by_id_denied(self):
         """Test attach by process id denied"""
         self.build()