Teach LLDB how to directly launch processes on the iOS simulator

This allows for command-line debugging of iOS simulator binaries (as long as UI is not required, or a full UI simulator has previously been otherwise launched), as well as execution of the LLDB test suite on the iOS simulator

This is known to compile on OSX 10.11 GM - feedback from people on other platforms and/or older versions of OSX as to the buildability of this code is greatly appreciated

llvm-svn: 252112

8 files changed, 54 insertions, 5 deletions

diff --git a/lldb/packages/Python/lldbsuite/test/dotest.py b/lldb/packages/Python/lldbsuite/test/dotest.py
index cdaf8167711..313734a0400 100644
--- a/lldb/packages/Python/lldbsuite/test/dotest.py
+++ b/lldb/packages/Python/lldbsuite/test/dotest.py
@@ -1381,6 +1381,28 @@ def isMultiprocessTestRunner():
     # test runner
     return not (is_inferior_test_runner or no_multiprocess_test_runner)
 
+def getVersionForSDK(sdk):
+    sdk = str.lower(sdk)
+    full_path = seven.get_command_output('xcrun -sdk %s --show-sdk-path' % sdk)
+    basename = os.path.basename(full_path)
+    basename = os.path.splitext(basename)[0]
+    basename = str.lower(basename)
+    ver = basename.replace(sdk, '')
+    return ver
+
+def getPathForSDK(sdk):
+    sdk = str.lower(sdk)
+    full_path = seven.get_command_output('xcrun -sdk %s --show-sdk-path' % sdk)
+    if os.path.exists(full_path): return full_path
+    return None
+
+def setDefaultTripleForPlatform():
+    if lldb_platform_name == 'ios-simulator':
+        triple_str = 'x86_64-apple-ios%s' % (getVersionForSDK('iphonesimulator'))
+        os.environ['TRIPLE'] = triple_str
+        return {'TRIPLE':triple_str}
+    return {}
+
 def run_suite():
     global just_do_benchmarks_test
     global dont_do_dsym_test
@@ -1478,6 +1500,7 @@ def run_suite():
     if lldb_platform_name:
         print("Setting up remote platform '%s'" % (lldb_platform_name))
         lldb.remote_platform = lldb.SBPlatform(lldb_platform_name)
+        lldb.remote_platform_name = lldb_platform_name
         if not lldb.remote_platform.IsValid():
             print("error: unable to create the LLDB platform named '%s'." % (lldb_platform_name))
             exitTestSuite(1)
@@ -1495,10 +1518,17 @@ def run_suite():
         else:
             lldb.platform_url = None
 
-        if lldb_platform_working_dir:
-            print("Setting remote platform working directory to '%s'..." % (lldb_platform_working_dir))
-            lldb.remote_platform.SetWorkingDirectory(lldb_platform_working_dir)
-    
+    platform_changes = setDefaultTripleForPlatform()
+    first = True
+    for key in platform_changes:
+        if first:
+            print("Environment variables setup for platform support:")
+            first = False
+        print("%s = %s" % (key,platform_changes[key]))
+
+    if lldb_platform_working_dir:
+        print("Setting remote platform working directory to '%s'..." % (lldb_platform_working_dir))
+        lldb.remote_platform.SetWorkingDirectory(lldb_platform_working_dir)
         lldb.remote_platform_working_dir = lldb_platform_working_dir
         lldb.DBG.SetSelectedPlatform(lldb.remote_platform)
     else:
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 0315748ef5b..83906b54630 100644
--- a/lldb/packages/Python/lldbsuite/test/functionalities/process_attach/TestProcessAttach.py
+++ b/lldb/packages/Python/lldbsuite/test/functionalities/process_attach/TestProcessAttach.py
@@ -17,6 +17,7 @@ class ProcessAttachTestCase(TestBase):
 
     mydir = TestBase.compute_mydir(__file__)
 
+    @skipIfiOSSimulator
     def test_attach_to_process_by_id(self):
         """Test attach by process id"""
         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 f5e6b71a623..ed9d58f9088 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
@@ -24,6 +24,7 @@ class AttachDeniedTestCase(TestBase):
         return (err, shell_command.GetStatus(), shell_command.GetOutput())
 
     @skipIfWindows
+    @skipIfiOSSimulator
     def test_attach_to_process_by_id_denied(self):
         """Test attach by process id denied"""
         self.build()
diff --git a/lldb/packages/Python/lldbsuite/test/functionalities/register/TestRegisters.py b/lldb/packages/Python/lldbsuite/test/functionalities/register/TestRegisters.py
index d508c357efe..4a2427edf39 100644
--- a/lldb/packages/Python/lldbsuite/test/functionalities/register/TestRegisters.py
+++ b/lldb/packages/Python/lldbsuite/test/functionalities/register/TestRegisters.py
@@ -24,6 +24,7 @@ class RegisterCommandsTestCase(TestBase):
         self.dbg.GetSelectedTarget().GetProcess().Destroy()
         TestBase.tearDown(self)
 
+    @skipIfiOSSimulator
     def test_register_commands(self):
         """Test commands related to registers, in particular vector registers."""
         if not self.getArchitecture() in ['amd64', 'i386', 'x86_64']:
@@ -31,6 +32,7 @@ class RegisterCommandsTestCase(TestBase):
         self.build()
         self.register_commands()
 
+    @skipIfiOSSimulator
     @skipIfTargetAndroid(archs=["i386"]) # Writing of mxcsr register fails, presumably due to a kernel/hardware problem
     def test_fp_register_write(self):
         """Test commands that write to registers, in particular floating-point registers."""
@@ -39,6 +41,7 @@ class RegisterCommandsTestCase(TestBase):
         self.build()
         self.fp_register_write()
 
+    @skipIfiOSSimulator
     @expectedFailureAndroid(archs=["i386"]) # "register read fstat" always return 0xffff
     @skipIfFreeBSD    #llvm.org/pr25057
     def test_fp_special_purpose_register_read(self):
@@ -48,6 +51,7 @@ class RegisterCommandsTestCase(TestBase):
         self.build()
         self.fp_special_purpose_register_read()
 
+    @skipIfiOSSimulator
     def test_register_expressions(self):
         """Test expression evaluation with commands related to registers."""
         if not self.getArchitecture() in ['amd64', 'i386', 'x86_64']:
@@ -55,6 +59,7 @@ class RegisterCommandsTestCase(TestBase):
         self.build()
         self.register_expressions()
 
+    @skipIfiOSSimulator
     def test_convenience_registers(self):
         """Test convenience registers."""
         if not self.getArchitecture() in ['amd64', 'x86_64']:
@@ -62,6 +67,7 @@ class RegisterCommandsTestCase(TestBase):
         self.build()
         self.convenience_registers()
 
+    @skipIfiOSSimulator
     def test_convenience_registers_with_process_attach(self):
         """Test convenience registers after a 'process attach'."""
         if not self.getArchitecture() in ['amd64', 'x86_64']:
@@ -69,6 +75,7 @@ class RegisterCommandsTestCase(TestBase):
         self.build()
         self.convenience_registers_with_process_attach(test_16bit_regs=False)
 
+    @skipIfiOSSimulator
     def test_convenience_registers_16bit_with_process_attach(self):
         """Test convenience registers after a 'process attach'."""
         if not self.getArchitecture() in ['amd64', 'x86_64']:
diff --git a/lldb/packages/Python/lldbsuite/test/functionalities/thread/create_after_attach/TestCreateAfterAttach.py b/lldb/packages/Python/lldbsuite/test/functionalities/thread/create_after_attach/TestCreateAfterAttach.py
index 6b9eb321a0e..977254343aa 100644
--- a/lldb/packages/Python/lldbsuite/test/functionalities/thread/create_after_attach/TestCreateAfterAttach.py
+++ b/lldb/packages/Python/lldbsuite/test/functionalities/thread/create_after_attach/TestCreateAfterAttach.py
@@ -19,6 +19,7 @@ class CreateAfterAttachTestCase(TestBase):
                    # not yet investigated.  Revisit once required functionality
                    # is implemented for FreeBSD.
     @skipIfWindows # Occasionally hangs on Windows, may be same as other issues.
+    @skipIfiOSSimulator
     def test_create_after_attach_with_popen(self):
         """Test thread creation after process attach."""
         self.build(dictionary=self.getBuildFlags(use_cpp11=False))
@@ -29,6 +30,7 @@ class CreateAfterAttachTestCase(TestBase):
     @skipIfRemote
     @skipIfWindows # Windows doesn't have fork.
     @expectedFlakeyLinux("llvm.org/pr16229") # 1/100 dosep, build 3546, clang-3.5 x84_64
+    @skipIfiOSSimulator
     def test_create_after_attach_with_fork(self):
         """Test thread creation after process attach."""
         self.build(dictionary=self.getBuildFlags(use_cpp11=False))
diff --git a/lldb/packages/Python/lldbsuite/test/lldbtest.py b/lldb/packages/Python/lldbsuite/test/lldbtest.py
index 758824cde5d..5a43cffabc3 100644
--- a/lldb/packages/Python/lldbsuite/test/lldbtest.py
+++ b/lldb/packages/Python/lldbsuite/test/lldbtest.py
@@ -868,6 +868,10 @@ def skipIfNoSBHeaders(func):
             func(*args, **kwargs)
     return wrapper
 
+def skipIfiOSSimulator(func):
+    """Decorate the item to skip tests that should be skipped on the iOS Simulator."""
+    return unittest2.skipIf(hasattr(lldb, 'remote_platform_name') and lldb.remote_platform_name == 'ios-simulator', 'skip on the iOS Simulator')(func)
+
 def skipIfFreeBSD(func):
     """Decorate the item to skip tests that should be skipped on FreeBSD."""
     return skipIfPlatform(["freebsd"])(func)
diff --git a/lldb/packages/Python/lldbsuite/test/make/Makefile.rules b/lldb/packages/Python/lldbsuite/test/make/Makefile.rules
index e72b2d0931e..071aa0e3544 100644
--- a/lldb/packages/Python/lldbsuite/test/make/Makefile.rules
+++ b/lldb/packages/Python/lldbsuite/test/make/Makefile.rules
@@ -40,7 +40,7 @@ ifneq "$(TRIPLE)" ""
 	triple_space = $(subst -, ,$(TRIPLE))
 	ARCH =$(word 1, $(triple_space))
 	TRIPLE_VENDOR =$(word 2, $(triple_space))
-	triple_os_and_version =$(shell echo $(word 3, $(triple_space)) | sed -e 's/\(.*\)\([0-9]\.[0-9]\).*/\1 \2/')
+	triple_os_and_version =$(shell echo $(word 3, $(triple_space)) | sed 's/\([a-z]*\)\(.*\)/\1 \2/')
 	TRIPLE_OS =$(word 1, $(triple_os_and_version))
 	TRIPLE_VERSION =$(word 2, $(triple_os_and_version))
 	ifeq "$(TRIPLE_VENDOR)" "apple"
@@ -181,6 +181,7 @@ ifeq "$(OS)" "Darwin"
 else
 	CFLAGS += $(ARCHFLAG)$(ARCH) $(FRAMEWORK_INCLUDES) $(CFLAGS_EXTRAS) -I$(LLDB_BASE_DIR)include
 endif
+
 CFLAGS += -include $(THIS_FILE_DIR)test_common.h $(TRIPLE_CFLAGS)
 
 # Use this one if you want to build one part of the result without debug information:
diff --git a/lldb/packages/Python/lldbsuite/test/python_api/hello_world/TestHelloWorld.py b/lldb/packages/Python/lldbsuite/test/python_api/hello_world/TestHelloWorld.py
index ba2f2d46cc0..47c3ba146ce 100644
--- a/lldb/packages/Python/lldbsuite/test/python_api/hello_world/TestHelloWorld.py
+++ b/lldb/packages/Python/lldbsuite/test/python_api/hello_world/TestHelloWorld.py
@@ -30,6 +30,7 @@ class HelloWorldTestCase(TestBase):
         TestBase.tearDown(self)
 
     @add_test_categories(['pyapi'])
+    @skipIfiOSSimulator
     def test_with_process_launch_api(self):
         """Create target, breakpoint, launch a process, and then kill it."""
         self.build(dictionary=self.d)
@@ -75,6 +76,7 @@ class HelloWorldTestCase(TestBase):
     @add_test_categories(['pyapi'])
     @expectedFailureWindows("llvm.org/pr24600")
     @expectedFailurei386("llvm.org/pr25338")
+    @skipIfiOSSimulator
     def test_with_attach_to_process_with_id_api(self):
         """Create target, spawn a process, and attach to it with process id."""
         self.build(dictionary=self.d)
@@ -104,6 +106,7 @@ class HelloWorldTestCase(TestBase):
     @add_test_categories(['pyapi'])
     @expectedFailureWindows("llvm.org/pr24600")
     @expectedFailurei386("llvm.org/pr25338")
+    @skipIfiOSSimulator
     def test_with_attach_to_process_with_name_api(self):
         """Create target, spawn a process, and attach to it with process name."""
         self.build(dictionary=self.d)