Make improvements

- Fix build flakes
- Polyfill SIGWINCH on Windows
- Fix an execve issue on Windows
- Make strerror show more information
- Improve cmd.exe setup/teardown on Windows
- Support bracketed paste mode in Blinkenlights
- Show keyboard shortcuts in Blinkenlights status bar
- Fixed copy_file_range() and copyfile() w/ zip filesystem
- Size optimize GetDosArgv() to keep life.com 12kb in size
- Improve Blinkenlights ability to load weird ELF executables
- Fix program_executable_name and add GetInterpreterExecutableName
- Make Python in tiny mode fail better if docstrings are requested
- Update Python test exclusions in tiny* modes such as tinylinux
- Add bulletproof unbreakable kprintf() troubleshooting function
- Remove "oldskool" keyword from ape.S for virus scanners
- Fix issue that caused backtraces to not print sometimes
- Improve Blinkenlights serial uart character i/o
- Make clock_gettime() not clobber errno on xnu
- Improve sha256 cpuid check for old computers
- Integrate some bestline linenoise fixes
- Show runit process names better in htop
- Remove SIGPIPE from ShowCrashReports()
- Make realpath() not clobber errno
- Avoid attaching GDB on non-Linux
- Improve img.com example

third_party/python/Lib/test/support/__init__.py

@@ -3,6 +3,7 @@
 if __name__ != 'test.support':
     raise ImportError('support must be imported from the test package')
 
+import cosmo
 import collections.abc
 import contextlib
 import datetime
@@ -2043,9 +2044,10 @@ def run_unittest(*classes):
 def _check_docstrings():
     """Just used to check if docstrings are enabled"""
 
-MISSING_C_DOCSTRINGS = (check_impl_detail() and
-                        sys.platform != 'win32' and
-                        not sysconfig.get_config_var('WITH_DOC_STRINGS'))
+MISSING_C_DOCSTRINGS = (cosmo.MODE.startswith('tiny') or
+                        (check_impl_detail() and
+                         sys.platform != 'win32' and
+                         not sysconfig.get_config_var('WITH_DOC_STRINGS')))
 
 HAVE_DOCSTRINGS = (_check_docstrings.__doc__ is not None and
                    not MISSING_C_DOCSTRINGS)

third_party/python/Lib/test/test_bz2.py

@@ -734,7 +734,7 @@ class BZ2DecompressorTest(BaseTest):
             with self.assertRaises(TypeError):
                 pickle.dumps(BZ2Decompressor(), proto)
 
-    @unittest.skipIf(cosmo.MODE == 'tiny',
+    @unittest.skipIf(cosmo.MODE.startswith("tiny"),
                      "TODO(jart): what's going on here?")
     def testDecompressorChunksMaxsize(self):
         bzd = BZ2Decompressor()

third_party/python/Lib/test/test_class.py

@@ -490,7 +490,8 @@ class ClassTests(unittest.TestCase):
 
         self.assertRaises(TypeError, hash, C2())
 
-    @unittest.skipIf(cosmo.MODE == 'tiny', "no stack awareness in tiny mode")
+    @unittest.skipIf(cosmo.MODE.startswith("tiny"),
+                     "no stack awareness in tiny mode")
     def testSFBug532646(self):
         # Test for SF bug 532646
 

third_party/python/Lib/test/test_exceptions.py

@@ -1152,7 +1152,7 @@ class ExceptionTests(unittest.TestCase):
             os.listdir(__file__)
         self.assertEqual(cm.exception.errno, errno.ENOTDIR, cm.exception)
 
-    @unittest.skipIf(cosmo.MODE == 'tiny',
+    @unittest.skipIf(cosmo.MODE.startswith("tiny"),
                      "todo(jart): why is it broken")
     def test_unraisable(self):
         # Issue #22836: PyErr_WriteUnraisable() should give sensible reports
@@ -1186,7 +1186,7 @@ class ExceptionTests(unittest.TestCase):
                     self.assertIn("del is broken", report)
                 self.assertTrue(report.endswith("\n"))
 
-    @unittest.skipIf(cosmo.MODE == 'tiny',
+    @unittest.skipIf(cosmo.MODE.startswith("tiny"),
                      "todo(jart): why is it broken")
     def test_unhandled(self):
         # Check for sensible reporting of unhandled exceptions

third_party/python/Lib/test/test_fileio.py

@@ -177,7 +177,7 @@ class AutoFileTests:
         finally:
             os.close(fd)
 
-    @unittest.skipIf(cosmo.MODE == 'tiny', "no stack awareness in tiny mode")
+    @unittest.skipIf(cosmo.MODE.startswith("tiny"), "no stack awareness in tiny mode")
     def testRecursiveRepr(self):
         # Issue #25455
         with swap_attr(self.f, 'name', self.f):

third_party/python/Lib/test/test_functools.py

@@ -619,7 +619,7 @@ class TestUpdateWrapper(unittest.TestCase):
 
     @unittest.skipIf(sys.flags.optimize >= 2,
                      "Docstrings are omitted with -O2 and above")
-    @unittest.skipIf(cosmo.MODE == 'tiny',
+    @unittest.skipIf(cosmo.MODE.startswith("tiny"),
                      "No .py files available in Cosmo MODE=tiny")
     def test_default_update_doc(self):
         wrapper, f = self._default_update()
@@ -681,7 +681,7 @@ class TestUpdateWrapper(unittest.TestCase):
     @support.requires_docstrings
     @unittest.skipIf(sys.flags.optimize >= 2,
                      "Docstrings are omitted with -O2 and above")
-    @unittest.skipIf(cosmo.MODE == 'tiny',
+    @unittest.skipIf(cosmo.MODE .startswith("tiny"),
                      "No .py files available in Cosmo MODE=tiny")
     def test_builtin_update(self):
         # Test for bug #1576241
@@ -715,7 +715,7 @@ class TestWraps(TestUpdateWrapper):
 
     @unittest.skipIf(sys.flags.optimize >= 2,
                      "Docstrings are omitted with -O2 and above")
-    @unittest.skipIf(cosmo.MODE == 'tiny',
+    @unittest.skipIf(cosmo.MODE .startswith("tiny"),
                      "No .py files available in Cosmo MODE=tiny")
     def test_default_update_doc(self):
         wrapper, _ = self._default_update()

third_party/python/Lib/test/test_plistlib.py

@@ -814,7 +814,8 @@ class TestBinaryPlistlib(unittest.TestCase):
         b = plistlib.loads(plistlib.dumps(a, fmt=plistlib.FMT_BINARY))
         self.assertIs(b['x'], b)
 
-    @unittest.skipIf(cosmo.MODE == 'tiny', "no stack awareness in tiny mode")
+    @unittest.skipIf(cosmo.MODE.startswith("tiny"),
+                     "no stack awareness in tiny mode")
     def test_deep_nesting(self):
         for N in [300, 100000]:
             chunks = [b'\xa1' + (i + 1).to_bytes(4, 'big') for i in range(N)]

third_party/python/Lib/test/test_unicodedata.py

@@ -131,7 +131,7 @@ class UnicodeFunctionsTest(UnicodeDatabaseTest):
         self.assertRaises(TypeError, self.db.numeric, 'xx')
         self.assertRaises(ValueError, self.db.numeric, 'x')
 
-    @unittest.skipIf(cosmo.MODE == 'tiny', 'astral planes arent tiny')
+    @unittest.skipIf(cosmo.MODE.startswith('tiny'), 'astral planes arent tiny')
     def test_numeric_astral(self):
         self.assertEqual(self.db.numeric('\U00020000', None), None)
         self.assertEqual(self.db.numeric('\U0001012A'), 9000)