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

3 files changed, 16 insertions, 6 deletions

diff --git a/lldb/packages/Python/lldbsuite/test/settings/TestSettings.py b/lldb/packages/Python/lldbsuite/test/settings/TestSettings.py
index a8bd57341ed..36ca7d7e418 100644
--- a/lldb/packages/Python/lldbsuite/test/settings/TestSettings.py
+++ b/lldb/packages/Python/lldbsuite/test/settings/TestSettings.py
@@ -215,6 +215,7 @@ class SettingsCommandTestCase(TestBase):
         self.expect("disassemble -n numberfn",
                     substrs=["5ah"])
 
+    @skipIfDarwinEmbedded   # debugserver on ios etc can't write files
     def test_run_args_and_env_vars(self):
         """Test that run-args and env-vars are passed to the launched process."""
         self.build()
@@ -286,6 +287,7 @@ class SettingsCommandTestCase(TestBase):
                 "The host environment variable 'MY_HOST_ENV_VAR1' successfully passed.",
                 "The host environment variable 'MY_HOST_ENV_VAR2' successfully passed."])
 
+    @skipIfDarwinEmbedded   # debugserver on ios etc can't write files
     def test_set_error_output_path(self):
         """Test that setting target.error/output-path for the launched process works."""
         self.build()
diff --git a/lldb/packages/Python/lldbsuite/test/settings/quoting/TestQuoting.py b/lldb/packages/Python/lldbsuite/test/settings/quoting/TestQuoting.py
index b193c81e644..02110d1684f 100644
--- a/lldb/packages/Python/lldbsuite/test/settings/quoting/TestQuoting.py
+++ b/lldb/packages/Python/lldbsuite/test/settings/quoting/TestQuoting.py
@@ -82,16 +82,16 @@ class SettingsCommandTestCase(TestBase):
         exe = os.path.join(os.getcwd(), "a.out")
         self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
 
-        self.runCmd("process launch -o stdout.txt -- " + args_in)
+        self.runCmd("process launch -- " + args_in)
 
         if lldb.remote_platform:
-            src_file_spec = lldb.SBFileSpec('stdout.txt', False)
-            dst_file_spec = lldb.SBFileSpec('stdout.txt', True)
+            src_file_spec = lldb.SBFileSpec('output.txt', False)
+            dst_file_spec = lldb.SBFileSpec('output.txt', True)
             lldb.remote_platform.Get(src_file_spec, dst_file_spec)
 
-        with open('stdout.txt', 'r') as f:
+        with open('output.txt', 'r') as f:
             output = f.read()
 
-        self.RemoveTempFile("stdout.txt")
+        self.RemoveTempFile("output.txt")
 
         self.assertEqual(output, args_out)
diff --git a/lldb/packages/Python/lldbsuite/test/settings/quoting/main.c b/lldb/packages/Python/lldbsuite/test/settings/quoting/main.c
index 6e01c2d1cd8..5e3e34f84a6 100644
--- a/lldb/packages/Python/lldbsuite/test/settings/quoting/main.c
+++ b/lldb/packages/Python/lldbsuite/test/settings/quoting/main.c
@@ -1,13 +1,21 @@
 #include <stdio.h>
 #include <string.h>
+#include <stdlib.h>
 
 /* This program writes its arguments (separated by '\0') to stdout. */
 int
 main(int argc, char const *argv[])
 {
     int i;
+
+    FILE *output = fopen ("output.txt", "w");
+    if (output == NULL)
+        exit (1);
+
     for (i = 1; i < argc; ++i)
-        fwrite(argv[i], strlen(argv[i])+1, 1, stdout);
+        fwrite(argv[i], strlen(argv[i])+1, 1, output);
+
+    fclose (output);
 
     return 0;
 }