Import LLVM 10.0.0 release including clang, lld and lldb.

ok hackroom
tested by plenty

3 files changed, 242 insertions, 0 deletions

diff --git a/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/signal/raise/Makefile b/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/signal/raise/Makefile
new file mode 100644
index 00000000000..10495940055
--- /dev/null
+++ b/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/signal/raise/Makefile
@@ -0,0 +1,3 @@
+C_SOURCES := main.c
+
+include Makefile.rules
diff --git a/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/signal/raise/TestRaise.py b/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/signal/raise/TestRaise.py
new file mode 100644
index 00000000000..70271e43cff
--- /dev/null
+++ b/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/signal/raise/TestRaise.py
@@ -0,0 +1,190 @@
+"""Test that we handle inferiors that send signals to themselves"""
+
+
+
+import lldb
+import re
+from lldbsuite.test.lldbplatformutil import getDarwinOSTriples
+from lldbsuite.test.decorators import *
+from lldbsuite.test.lldbtest import *
+from lldbsuite.test import lldbutil
+
+
+@skipIfWindows  # signals do not exist on Windows
+class RaiseTestCase(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+    NO_DEBUG_INFO_TESTCASE = True
+
+    @skipIfNetBSD  # Hangs on NetBSD
+    def test_sigstop(self):
+        self.build()
+        self.signal_test('SIGSTOP', False)
+        # passing of SIGSTOP is not correctly handled, so not testing that
+        # scenario: https://llvm.org/bugs/show_bug.cgi?id=23574
+
+    @skipIfDarwin  # darwin does not support real time signals
+    @skipIfTargetAndroid()
+    def test_sigsigrtmin(self):
+        self.build()
+        self.signal_test('SIGRTMIN', True)
+
+    @skipIfNetBSD  # Hangs on NetBSD
+    def test_sigtrap(self):
+        self.build()
+        self.signal_test('SIGTRAP', True)
+
+    def launch(self, target, signal):
+        # launch the process, do not stop at entry point.
+        process = target.LaunchSimple(
+            [signal], None, self.get_process_working_directory())
+        self.assertTrue(process, PROCESS_IS_VALID)
+        self.assertEqual(process.GetState(), lldb.eStateStopped)
+        thread = lldbutil.get_stopped_thread(
+            process, lldb.eStopReasonBreakpoint)
+        self.assertTrue(
+            thread.IsValid(),
+            "Thread should be stopped due to a breakpoint")
+        return process
+
+    def set_handle(self, signal, pass_signal, stop_at_signal, notify_signal):
+        return_obj = lldb.SBCommandReturnObject()
+        self.dbg.GetCommandInterpreter().HandleCommand(
+            "process handle %s -p %s -s %s -n %s" %
+            (signal, pass_signal, stop_at_signal, notify_signal), return_obj)
+        self.assertTrue(
+            return_obj.Succeeded(),
+            "Setting signal handling failed")
+
+    def signal_test(self, signal, test_passing):
+        """Test that we handle inferior raising signals"""
+        exe = self.getBuildArtifact("a.out")
+
+        # Create a target by the debugger.
+        target = self.dbg.CreateTarget(exe)
+        self.assertTrue(target, VALID_TARGET)
+        lldbutil.run_break_set_by_symbol(self, "main")
+
+        # launch
+        process = self.launch(target, signal)
+        signo = process.GetUnixSignals().GetSignalNumberFromName(signal)
+
+        # retrieve default signal disposition
+        return_obj = lldb.SBCommandReturnObject()
+        self.dbg.GetCommandInterpreter().HandleCommand(
+            "process handle %s " % signal, return_obj)
+        match = re.match(
+            'NAME *PASS *STOP *NOTIFY.*(false|true) *(false|true) *(false|true)',
+            return_obj.GetOutput(),
+            re.IGNORECASE | re.DOTALL)
+        if not match:
+            self.fail('Unable to retrieve default signal disposition.')
+        default_pass = match.group(1)
+        default_stop = match.group(2)
+        default_notify = match.group(3)
+
+        # Make sure we stop at the signal
+        self.set_handle(signal, "false", "true", "true")
+        process.Continue()
+        self.assertEqual(process.GetState(), lldb.eStateStopped)
+        thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonSignal)
+        self.assertTrue(
+            thread.IsValid(),
+            "Thread should be stopped due to a signal")
+        self.assertTrue(
+            thread.GetStopReasonDataCount() >= 1,
+            "There was data in the event.")
+        self.assertEqual(thread.GetStopReasonDataAtIndex(0), signo,
+                         "The stop signal was %s" % signal)
+
+        # Continue until we exit.
+        process.Continue()
+        self.assertEqual(process.GetState(), lldb.eStateExited)
+        self.assertEqual(process.GetExitStatus(), 0)
+
+        # launch again
+        process = self.launch(target, signal)
+
+        # Make sure we do not stop at the signal. We should still get the
+        # notification.
+        self.set_handle(signal, "false", "false", "true")
+        self.expect(
+            "process continue",
+            substrs=[
+                "stopped and restarted",
+                signal])
+        self.assertEqual(process.GetState(), lldb.eStateExited)
+        self.assertEqual(process.GetExitStatus(), 0)
+
+        # launch again
+        process = self.launch(target, signal)
+
+        # Make sure we do not stop at the signal, and we do not get the
+        # notification.
+        self.set_handle(signal, "false", "false", "false")
+        self.expect(
+            "process continue",
+            substrs=["stopped and restarted"],
+            matching=False)
+        self.assertEqual(process.GetState(), lldb.eStateExited)
+        self.assertEqual(process.GetExitStatus(), 0)
+
+        if not test_passing:
+            # reset signal handling to default
+            self.set_handle(signal, default_pass, default_stop, default_notify)
+            return
+
+        # launch again
+        process = self.launch(target, signal)
+
+        # Make sure we stop at the signal
+        self.set_handle(signal, "true", "true", "true")
+        process.Continue()
+        self.assertEqual(process.GetState(), lldb.eStateStopped)
+        thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonSignal)
+        self.assertTrue(
+            thread.IsValid(),
+            "Thread should be stopped due to a signal")
+        self.assertTrue(
+            thread.GetStopReasonDataCount() >= 1,
+            "There was data in the event.")
+        self.assertEqual(
+            thread.GetStopReasonDataAtIndex(0),
+            process.GetUnixSignals().GetSignalNumberFromName(signal),
+            "The stop signal was %s" %
+            signal)
+
+        # Continue until we exit. The process should receive the signal.
+        process.Continue()
+        self.assertEqual(process.GetState(), lldb.eStateExited)
+        self.assertEqual(process.GetExitStatus(), signo)
+
+        # launch again
+        process = self.launch(target, signal)
+
+        # Make sure we do not stop at the signal. We should still get the notification. Process
+        # should receive the signal.
+        self.set_handle(signal, "true", "false", "true")
+        self.expect(
+            "process continue",
+            substrs=[
+                "stopped and restarted",
+                signal])
+        self.assertEqual(process.GetState(), lldb.eStateExited)
+        self.assertEqual(process.GetExitStatus(), signo)
+
+        # launch again
+        process = self.launch(target, signal)
+
+        # Make sure we do not stop at the signal, and we do not get the notification. Process
+        # should receive the signal.
+        self.set_handle(signal, "true", "false", "false")
+        self.expect(
+            "process continue",
+            substrs=["stopped and restarted"],
+            matching=False)
+        self.assertEqual(process.GetState(), lldb.eStateExited)
+        self.assertEqual(process.GetExitStatus(), signo)
+
+        # reset signal handling to default
+        self.set_handle(signal, default_pass, default_stop, default_notify)
diff --git a/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/signal/raise/main.c b/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/signal/raise/main.c
new file mode 100644
index 00000000000..4203fe5d4c8
--- /dev/null
+++ b/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/signal/raise/main.c
@@ -0,0 +1,49 @@
+#include <signal.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+void handler(int signo)
+{
+    _exit(signo);
+}
+
+int main (int argc, char *argv[])
+{
+    if (signal(SIGTRAP, handler) == SIG_ERR)
+    {
+        perror("signal(SIGTRAP)");
+        return 1;
+    }
+#ifndef __APPLE__
+    // Real time signals not supported on apple platforms.
+    if (signal(SIGRTMIN, handler) == SIG_ERR)
+    {
+        perror("signal(SIGRTMIN)");
+        return 1;
+    }
+#endif
+
+    if (argc < 2)
+    {
+        puts("Please specify a signal to raise");
+        return 1;
+    }
+
+    if (strcmp(argv[1], "SIGSTOP") == 0)
+        raise(SIGSTOP);
+    else if (strcmp(argv[1], "SIGTRAP") == 0)
+        raise(SIGTRAP);
+#ifndef __APPLE__
+    else if (strcmp(argv[1], "SIGRTMIN") == 0)
+        raise(SIGRTMIN);
+#endif
+    else
+    {
+        printf("Unknown signal: %s\n", argv[1]);
+        return 1;
+    }
+
+    return 0;
+}
+