Import LLVM 10.0.0 release including clang, lld and lldb.

ok hackroom
tested by plenty

4 files changed, 145 insertions, 0 deletions

diff --git a/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/exec/Makefile b/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/exec/Makefile
new file mode 100644
index 00000000000..afc520010ee
--- /dev/null
+++ b/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/exec/Makefile
@@ -0,0 +1,9 @@
+CXX_SOURCES := main.cpp
+
+all: secondprog
+
+include Makefile.rules
+
+secondprog: secondprog.cpp
+	$(MAKE) -f $(MAKEFILE_RULES) \
+		CXX_SOURCES=secondprog.cpp EXE=secondprog
diff --git a/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/exec/TestExec.py b/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/exec/TestExec.py
new file mode 100644
index 00000000000..019df217713
--- /dev/null
+++ b/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/exec/TestExec.py
@@ -0,0 +1,113 @@
+"""
+Test some lldb command abbreviations.
+"""
+from __future__ import print_function
+
+
+import lldb
+from lldbsuite.test.decorators import *
+from lldbsuite.test.lldbtest import *
+from lldbsuite.test import lldbutil
+
+
+class ExecTestCase(TestBase):
+
+    NO_DEBUG_INFO_TESTCASE = True
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    @expectedFailureAll(archs=['i386'], bugnumber="rdar://28656532")
+    @expectedFailureAll(oslist=["ios", "tvos", "watchos", "bridgeos"], bugnumber="rdar://problem/34559552") # this exec test has problems on ios systems
+    @expectedFailureNetBSD
+    @skipIfAsan # rdar://problem/43756823
+    @skipIfWindows
+    def test_hitting_exec (self):
+        self.do_test(False)
+
+    @expectedFailureAll(archs=['i386'], bugnumber="rdar://28656532")
+    @expectedFailureAll(oslist=["ios", "tvos", "watchos", "bridgeos"], bugnumber="rdar://problem/34559552") # this exec test has problems on ios systems
+    @expectedFailureNetBSD
+    @skipIfAsan # rdar://problem/43756823
+    @skipIfWindows
+    def test_skipping_exec (self):
+        self.do_test(True)
+
+    def do_test(self, skip_exec):
+        self.build()
+        exe = self.getBuildArtifact("a.out")
+        secondprog = self.getBuildArtifact("secondprog")
+
+        # Create the target
+        target = self.dbg.CreateTarget(exe)
+
+        # Create any breakpoints we need
+        breakpoint1 = target.BreakpointCreateBySourceRegex(
+            'Set breakpoint 1 here', lldb.SBFileSpec("main.cpp", False))
+        self.assertTrue(breakpoint1, VALID_BREAKPOINT)
+        breakpoint2 = target.BreakpointCreateBySourceRegex(
+            'Set breakpoint 2 here', lldb.SBFileSpec("secondprog.cpp", False))
+        self.assertTrue(breakpoint2, VALID_BREAKPOINT)
+
+        # Launch the process
+        process = target.LaunchSimple(
+            None, None, self.get_process_working_directory())
+        self.assertTrue(process, PROCESS_IS_VALID)
+
+        if self.TraceOn():
+            self.runCmd("settings show target.process.stop-on-exec", check=False)
+        if skip_exec:
+            self.dbg.HandleCommand("settings set target.process.stop-on-exec false")
+            def cleanup():
+                self.runCmd("settings set target.process.stop-on-exec false",
+                            check=False)
+
+            # Execute the cleanup function during test case tear down.
+            self.addTearDownHook(cleanup)
+
+        # The stop reason of the thread should be breakpoint.
+        self.assertTrue(process.GetState() == lldb.eStateStopped,
+                        STOPPED_DUE_TO_BREAKPOINT)
+
+        threads = lldbutil.get_threads_stopped_at_breakpoint(
+        process, breakpoint1)
+        self.assertTrue(len(threads) == 1)
+
+        # We had a deadlock tearing down the TypeSystemMap on exec, but only if some
+        # expression had been evaluated.  So make sure we do that here so the teardown
+        # is not trivial.
+
+        thread = threads[0]
+        value = thread.frames[0].EvaluateExpression("1 + 2")
+        self.assertTrue(
+            value.IsValid(),
+            "Expression evaluated successfully")
+        int_value = value.GetValueAsSigned()
+        self.assertTrue(int_value == 3, "Expression got the right result.")
+
+        # Run and we should stop due to exec
+        process.Continue()
+
+        if not skip_exec:
+            self.assertFalse(process.GetState() == lldb.eStateExited,
+                             "Process should not have exited!")
+            self.assertTrue(process.GetState() == lldb.eStateStopped,
+                            "Process should be stopped at __dyld_start")
+
+            threads = lldbutil.get_stopped_threads(
+                process, lldb.eStopReasonExec)
+            self.assertTrue(
+                len(threads) == 1,
+                "We got a thread stopped for exec.")
+
+            # Run and we should stop at breakpoint in main after exec
+            process.Continue()
+
+        threads = lldbutil.get_threads_stopped_at_breakpoint(
+            process, breakpoint2)
+        if self.TraceOn():
+            for t in process.threads:
+                print(t)
+                if t.GetStopReason() != lldb.eStopReasonBreakpoint:
+                    self.runCmd("bt")
+        self.assertTrue(len(threads) == 1,
+                        "Stopped at breakpoint in exec'ed process.")
diff --git a/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/exec/main.cpp b/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/exec/main.cpp
new file mode 100644
index 00000000000..bec470fd13e
--- /dev/null
+++ b/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/exec/main.cpp
@@ -0,0 +1,18 @@
+#define _POSIX_C_SOURCE 200809L
+
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+#include <libgen.h>
+#include <string>
+#include <unistd.h>
+
+int main(int argc, char const **argv) {
+  char *buf = strdup(argv[0]); // Set breakpoint 1 here
+  std::string directory_name(::dirname(buf));
+
+  std::string other_program = directory_name + "/secondprog";
+  execve(other_program.c_str(), const_cast<char *const *>(argv), nullptr);
+  perror("execve");
+  abort();
+}
diff --git a/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/exec/secondprog.cpp b/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/exec/secondprog.cpp
new file mode 100644
index 00000000000..5653471c153
--- /dev/null
+++ b/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/exec/secondprog.cpp
@@ -0,0 +1,5 @@
+#include <stdio.h>
+int main ()
+{
+  puts ("I am the second program."); // Set breakpoint 2 here
+}