Imported Upstream version 6.10.0.49

Former-commit-id: 1d6753294b2993e1fbf92de9366bb9544db4189b

external/llvm-project/lldb/packages/Python/lldbsuite/test/macosx/universal/Makefile

@@ -0,0 +1,19 @@
+CC ?= clang
+
+testit: testit.i386 testit.x86_64
+	lipo -create -o testit testit.i386 testit.x86_64
+
+testit.i386: testit.i386.o
+	$(CC) -arch i386 -o testit.i386 testit.i386.o
+
+testit.x86_64: testit.x86_64.o
+	$(CC) -arch x86_64 -o testit.x86_64 testit.x86_64.o
+
+testit.i386.o: main.c
+	$(CC) -g -O0 -arch i386 -c -o testit.i386.o main.c
+
+testit.x86_64.o: main.c
+	$(CC) -g -O0 -arch x86_64 -c -o testit.x86_64.o main.c
+
+clean:
+	rm -rf $(wildcard testit* *~)

external/llvm-project/lldb/packages/Python/lldbsuite/test/macosx/universal/TestUniversal.py

@@ -0,0 +1,172 @@
+"""Test aspects of lldb commands on universal binaries."""
+
+from __future__ import print_function
+
+
+import unittest2
+import os
+import time
+import lldb
+from lldbsuite.test.decorators import *
+from lldbsuite.test.lldbtest import *
+from lldbsuite.test import lldbutil
+
+
+class UniversalTestCase(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    def setUp(self):
+        # Call super's setUp().
+        TestBase.setUp(self)
+        # Find the line number to break inside main().
+        self.line = line_number('main.c', '// Set break point at this line.')
+
+    @add_test_categories(['pyapi'])
+    @skipUnlessDarwin
+    @unittest2.skipUnless(hasattr(os, "uname") and os.uname()[4] in [
+                          'i386', 'x86_64'], "requires i386 or x86_64")
+    @skipIfDarwinEmbedded # this test file assumes we're targetting an x86 system
+    def test_sbdebugger_create_target_with_file_and_target_triple(self):
+        """Test the SBDebugger.CreateTargetWithFileAndTargetTriple() API."""
+        # Invoke the default build rule.
+        self.build()
+
+        # Note that "testit" is a universal binary.
+        exe = os.path.join(os.getcwd(), "testit")
+
+        # Create a target by the debugger.
+        target = self.dbg.CreateTargetWithFileAndTargetTriple(
+            exe, "i386-apple-macosx")
+        self.assertTrue(target, VALID_TARGET)
+
+        # Now launch the process, and do not stop at entry point.
+        process = target.LaunchSimple(
+            None, None, self.get_process_working_directory())
+        self.assertTrue(process, PROCESS_IS_VALID)
+
+    @skipUnlessDarwin
+    @unittest2.skipUnless(hasattr(os, "uname") and os.uname()[4] in [
+                          'i386', 'x86_64'], "requires i386 or x86_64")
+    @skipIfDarwinEmbedded # this test file assumes we're targetting an x86 system
+    def test_process_launch_for_universal(self):
+        """Test process launch of a universal binary."""
+        from lldbsuite.test.lldbutil import print_registers
+
+        # Invoke the default build rule.
+        self.build()
+
+        # Note that "testit" is a universal binary.
+        exe = os.path.join(os.getcwd(), "testit")
+
+        # By default, x86_64 is assumed if no architecture is specified.
+        self.expect("file " + exe, CURRENT_EXECUTABLE_SET,
+                    startstr="Current executable set to ",
+                    substrs=["testit' (x86_64)."])
+
+        # Break inside the main.
+        lldbutil.run_break_set_by_file_and_line(
+            self, "main.c", self.line, num_expected_locations=1, loc_exact=True)
+
+        # We should be able to launch the x86_64 executable.
+        self.runCmd("run", RUN_SUCCEEDED)
+
+        # Check whether we have a 64-bit process launched.
+        target = self.dbg.GetSelectedTarget()
+        process = target.GetProcess()
+        self.assertTrue(target and process and
+                        self.invoke(process, 'GetAddressByteSize') == 8,
+                        "64-bit process launched")
+
+        frame = process.GetThreadAtIndex(0).GetFrameAtIndex(0)
+        registers = print_registers(frame, string_buffer=True)
+        self.expect(registers, exe=False,
+                    substrs=['Name: rax'])
+
+        self.runCmd("continue")
+
+        # Now specify i386 as the architecture for "testit".
+        self.expect("file -a i386 " + exe, CURRENT_EXECUTABLE_SET,
+                    startstr="Current executable set to ",
+                    substrs=["testit' (i386)."])
+
+        # Break inside the main.
+        lldbutil.run_break_set_by_file_and_line(
+            self, "main.c", self.line, num_expected_locations=1, loc_exact=True)
+
+        # We should be able to launch the i386 executable as well.
+        self.runCmd("run", RUN_SUCCEEDED)
+
+        # Check whether we have a 32-bit process launched.
+        target = self.dbg.GetSelectedTarget()
+        process = target.GetProcess()
+        self.assertTrue(target and process,
+                        "32-bit process launched")
+
+        pointerSize = self.invoke(process, 'GetAddressByteSize')
+        self.assertTrue(
+            pointerSize == 4,
+            "AddressByteSize of 32-bit process should be 4, got %d instead." %
+            pointerSize)
+
+        frame = process.GetThreadAtIndex(0).GetFrameAtIndex(0)
+        registers = print_registers(frame, string_buffer=True)
+        self.expect(registers, exe=False,
+                    substrs=['Name: eax'])
+
+        self.runCmd("continue")
+
+    @skipUnlessDarwin
+    @unittest2.skipUnless(hasattr(os, "uname") and os.uname()[4] in [
+                          'i386', 'x86_64'], "requires i386 or x86_64")
+    @skipIfDarwinEmbedded # this test file assumes we're targetting an x86 system
+    def test_process_attach_with_wrong_arch(self):
+        """Test that when we attach to a binary from the wrong fork of a universal binary, we fix up the ABI correctly."""
+        # Now keep the architecture at 32 bit, but switch the binary we launch to
+        # 64 bit, and make sure on attach we switch to the correct
+        # architecture.
+
+        # Invoke the default build rule.
+        self.build()
+
+        # Note that "testit" is a universal binary.
+        exe = os.path.join(os.getcwd(), "testit")
+
+        # Create a target by the debugger.
+        target = self.dbg.CreateTargetWithFileAndTargetTriple(
+            exe, "i386-apple-macosx")
+        self.assertTrue(target, VALID_TARGET)
+        pointer_size = target.GetAddressByteSize()
+        self.assertTrue(pointer_size == 4, "Initially we were 32 bit.")
+
+        bkpt = target.BreakpointCreateBySourceRegex(
+            "sleep", lldb.SBFileSpec("main.c"))
+        self.assertTrue(bkpt.IsValid(), "Valid breakpoint")
+        self.assertTrue(
+            bkpt.GetNumLocations() >= 1,
+            "Our main breakpoint has locations.")
+
+        popen = self.spawnSubprocess(exe, ["keep_waiting"])
+        self.addTearDownHook(self.cleanupSubprocesses)
+
+        error = lldb.SBError()
+        empty_listener = lldb.SBListener()
+        process = target.AttachToProcessWithID(
+            empty_listener, popen.pid, error)
+        self.assertTrue(error.Success(), "Attached to process.")
+
+        pointer_size = target.GetAddressByteSize()
+        self.assertTrue(pointer_size == 8, "We switched to 64 bit.")
+
+        # It may seem odd that I am checking the number of frames, but the bug that
+        # motivated this test was that we eventually fixed the architecture, but we
+        # left the ABI set to the original value.  In that case, if you asked the
+        # process for its architecture, it would look right, but since the ABI was
+        # wrong, backtracing failed.
+
+        threads = lldbutil.continue_to_breakpoint(process, bkpt)
+        self.assertTrue(len(threads) == 1)
+        thread = threads[0]
+        self.assertTrue(
+            thread.GetNumFrames() > 1,
+            "We were able to backtrace.")

external/llvm-project/lldb/packages/Python/lldbsuite/test/macosx/universal/main.c

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+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+
+void
+call_me()
+{
+  sleep(1);
+}
+
+int
+main (int argc, char **argv)
+{
+  printf ("Hello there!\n"); // Set break point at this line.
+  if (argc == 2 && strcmp(argv[1], "keep_waiting") == 0)
+    while (1)
+      {
+        call_me();
+      }
+  return 0;
+}