Import LLVM 10.0.0 release including clang, lld and lldb.

ok hackroom
tested by plenty

3 files changed, 206 insertions, 0 deletions

diff --git a/gnu/llvm/lldb/packages/Python/lldbsuite/test/macosx/universal/Makefile b/gnu/llvm/lldb/packages/Python/lldbsuite/test/macosx/universal/Makefile
new file mode 100644
index 00000000000..efdeb1fd131
--- /dev/null
+++ b/gnu/llvm/lldb/packages/Python/lldbsuite/test/macosx/universal/Makefile
@@ -0,0 +1,23 @@
+EXE := testit
+
+include Makefile.rules
+
+all: testit
+
+testit: testit.x86_64h testit.x86_64
+	lipo -create -o testit $^
+
+testit.x86_64h: testit.x86_64h.o
+	$(CC) -arch x86_64h -o testit.x86_64h $<
+
+testit.x86_64: testit.x86_64.o
+	$(CC) -arch x86_64 -o testit.x86_64 $<
+
+testit.x86_64h.o: main.c
+	$(CC) -g -O0 -arch x86_64h -c -o testit.x86_64h.o $<
+
+testit.x86_64.o: main.c
+	$(CC) -g -O0 -arch x86_64 -c -o testit.x86_64.o $<
+
+clean::
+	rm -rf $(wildcard testit* *~)
diff --git a/gnu/llvm/lldb/packages/Python/lldbsuite/test/macosx/universal/TestUniversal.py b/gnu/llvm/lldb/packages/Python/lldbsuite/test/macosx/universal/TestUniversal.py
new file mode 100644
index 00000000000..ebcdee84f64
--- /dev/null
+++ b/gnu/llvm/lldb/packages/Python/lldbsuite/test/macosx/universal/TestUniversal.py
@@ -0,0 +1,162 @@
+"""Test aspects of lldb commands on universal binaries."""
+
+
+
+import unittest2
+import os
+import lldb
+from lldbsuite.test.decorators import *
+from lldbsuite.test.lldbtest import *
+from lldbsuite.test import lldbutil
+
+def haswellOrLater():
+    features = subprocess.check_output(["sysctl", "machdep.cpu"])
+    return "AVX2" in features.split()
+
+class UniversalTestCase(TestBase):
+
+    NO_DEBUG_INFO_TESTCASE = True
+    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
+                          ['x86_64'], "requires 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 = self.getBuildArtifact("testit")
+
+        # Create a target by the debugger.
+        target = self.dbg.CreateTargetWithFileAndTargetTriple(
+            exe, "x86_64-apple-macosx")
+        self.assertTrue(target, VALID_TARGET)
+        self.expect("image list -A -b", substrs=["x86_64 testit"])
+
+        # 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
+                          ['x86_64'], "requires 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
+
+        if not haswellOrLater():
+            return
+        
+        # Invoke the default build rule.
+        self.build()
+
+        # Note that "testit" is a universal binary.
+        exe = self.getBuildArtifact("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_64h)."])
+
+        # 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_64h executable.
+        self.runCmd("run", RUN_SUCCEEDED)
+
+        # Check whether we have a x86_64h process launched.
+        target = self.dbg.GetSelectedTarget()
+        process = target.GetProcess()
+        self.expect("image list -A -b", substrs=["x86_64h testit"])
+        self.runCmd("continue")
+
+        # Now specify x86_64 as the architecture for "testit".
+        self.expect("file -a x86_64 " + 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 as well.
+        self.runCmd("run", RUN_SUCCEEDED)
+
+        # Check whether we have a x86_64 process launched.
+        
+        # FIXME: This wrong. We are expecting x86_64, but spawning a
+        # new process currently doesn't allow specifying a *sub*-architecture.
+        # <rdar://problem/46101466>
+        self.expect("image list -A -b", substrs=["x86_64h testit"])
+        self.runCmd("continue")
+
+    @skipUnlessDarwin
+    @unittest2.skipUnless(hasattr(os, "uname") and os.uname()[4] in
+                          ['x86_64'], "requires 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."""
+        if not haswellOrLater():
+            return
+
+        # Now keep the architecture at x86_64, but switch the binary
+        # we launch to x86_64h, 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 = self.getBuildArtifact("testit")
+
+        # Create a target by the debugger.
+        target = self.dbg.CreateTargetWithFileAndTargetTriple(
+            exe, "x86_64-apple-macosx")
+        self.assertTrue(target, VALID_TARGET)
+        self.expect("image list -A -b", substrs=["x86_64 testit"])
+
+        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.")
+
+        self.expect("image list -A -b", substrs=["x86_64h testit"])
+
+        # It may seem odd to check 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.")
diff --git a/gnu/llvm/lldb/packages/Python/lldbsuite/test/macosx/universal/main.c b/gnu/llvm/lldb/packages/Python/lldbsuite/test/macosx/universal/main.c
new file mode 100644
index 00000000000..3edab51b1f6
--- /dev/null
+++ b/gnu/llvm/lldb/packages/Python/lldbsuite/test/macosx/universal/main.c
@@ -0,0 +1,21 @@
+#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;
+}