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, 12 insertions, 10 deletions

diff --git a/lldb/packages/Python/lldbsuite/test/python_api/lldbutil/iter/TestRegistersIterator.py b/lldb/packages/Python/lldbsuite/test/python_api/lldbutil/iter/TestRegistersIterator.py
index 49a78888ad8..a19cc5c375f 100644
--- a/lldb/packages/Python/lldbsuite/test/python_api/lldbutil/iter/TestRegistersIterator.py
+++ b/lldb/packages/Python/lldbsuite/test/python_api/lldbutil/iter/TestRegistersIterator.py
@@ -76,17 +76,18 @@ class RegistersIteratorTestCase(TestBase):
 
                     REGs = lldbutil.get_ESRs(frame)
                     if self.platformIsDarwin():
-                        num = len(REGs)
-                        if self.TraceOn():
-                            print(
-                                "\nNumber of exception state registers: %d" %
-                                num)
-                        for reg in REGs:
-                            self.assertTrue(reg)
+                        if self.getArchitecture() != 'armv7' and self.getArchitecture() != 'armv7k':
+                            num = len(REGs)
                             if self.TraceOn():
                                 print(
-                                    "%s => %s" %
-                                    (reg.GetName(), reg.GetValue()))
+                                    "\nNumber of exception state registers: %d" %
+                                    num)
+                            for reg in REGs:
+                                self.assertTrue(reg)
+                                if self.TraceOn():
+                                    print(
+                                        "%s => %s" %
+                                        (reg.GetName(), reg.GetValue()))
                     else:
                         self.assertIsNone(REGs)
 
@@ -99,7 +100,8 @@ class RegistersIteratorTestCase(TestBase):
                     REGs = lldbutil.get_registers(
                         frame, "Exception State Registers")
                     if self.platformIsDarwin():
-                        self.assertIsNotNone(REGs)
+                        if self.getArchitecture() != 'armv7' and self.getArchitecture() != 'armv7k':
+                            self.assertIsNotNone(REGs)
                     else:
                         self.assertIsNone(REGs)