Import LLVM 10.0.0 release including clang, lld and lldb.

ok hackroom
tested by plenty

3 files changed, 164 insertions, 0 deletions

diff --git a/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/process_group/Makefile b/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/process_group/Makefile
new file mode 100644
index 00000000000..10495940055
--- /dev/null
+++ b/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/process_group/Makefile
@@ -0,0 +1,3 @@
+C_SOURCES := main.c
+
+include Makefile.rules
diff --git a/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/process_group/TestChangeProcessGroup.py b/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/process_group/TestChangeProcessGroup.py
new file mode 100644
index 00000000000..fe541c7832c
--- /dev/null
+++ b/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/process_group/TestChangeProcessGroup.py
@@ -0,0 +1,90 @@
+"""Test that we handle inferiors which change their process group"""
+
+
+
+import os
+import lldb
+from lldbsuite.test.decorators import *
+from lldbsuite.test.lldbtest import *
+from lldbsuite.test import lldbutil
+
+
+class ChangeProcessGroupTestCase(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+    NO_DEBUG_INFO_TESTCASE = True
+
+    def setUp(self):
+        # Call super's setUp().
+        TestBase.setUp(self)
+        # Find the line number to break for main.c.
+        self.line = line_number('main.c', '// Set breakpoint here')
+
+    @skipIfFreeBSD  # Times out on FreeBSD llvm.org/pr23731
+    @skipIfWindows  # setpgid call does not exist on Windows
+    @expectedFailureAndroid("http://llvm.org/pr23762", api_levels=[16])
+    @expectedFailureNetBSD
+    def test_setpgid(self):
+        self.build()
+        exe = self.getBuildArtifact("a.out")
+
+        # Use a file as a synchronization point between test and inferior.
+        pid_file_path = lldbutil.append_to_process_working_directory(self,
+            "pid_file_%d" % (int(time.time())))
+        self.addTearDownHook(
+            lambda: self.run_platform_command(
+                "rm %s" %
+                (pid_file_path)))
+
+        popen = self.spawnSubprocess(exe, [pid_file_path])
+        self.addTearDownHook(self.cleanupSubprocesses)
+
+        pid = lldbutil.wait_for_file_on_target(self, pid_file_path)
+
+        # make sure we cleanup the forked child also
+        def cleanupChild():
+            if lldb.remote_platform:
+                lldb.remote_platform.Kill(int(pid))
+            else:
+                if os.path.exists("/proc/" + pid):
+                    os.kill(int(pid), signal.SIGKILL)
+        self.addTearDownHook(cleanupChild)
+
+        # Create a target by the debugger.
+        target = self.dbg.CreateTarget(exe)
+        self.assertTrue(target, VALID_TARGET)
+
+        listener = lldb.SBListener("my.attach.listener")
+        error = lldb.SBError()
+        process = target.AttachToProcessWithID(listener, int(pid), error)
+        self.assertTrue(error.Success() and process, PROCESS_IS_VALID)
+
+        # set a breakpoint just before the setpgid() call
+        lldbutil.run_break_set_by_file_and_line(
+            self, 'main.c', self.line, num_expected_locations=-1)
+
+        thread = process.GetSelectedThread()
+
+        # release the child from its loop
+        value = thread.GetSelectedFrame().EvaluateExpression("release_child_flag = 1")
+        self.assertTrue(value.IsValid() and value.GetValueAsUnsigned(0) == 1)
+        process.Continue()
+
+        # make sure the child's process group id is different from its pid
+        value = thread.GetSelectedFrame().EvaluateExpression("(int)getpgid(0)")
+        self.assertTrue(value.IsValid())
+        self.assertNotEqual(value.GetValueAsUnsigned(0), int(pid))
+
+        # step over the setpgid() call
+        thread.StepOver()
+        self.assertEqual(thread.GetStopReason(), lldb.eStopReasonPlanComplete)
+
+        # verify that the process group has been set correctly
+        # this also checks that we are still in full control of the child
+        value = thread.GetSelectedFrame().EvaluateExpression("(int)getpgid(0)")
+        self.assertTrue(value.IsValid())
+        self.assertEqual(value.GetValueAsUnsigned(0), int(pid))
+
+        # run to completion
+        process.Continue()
+        self.assertEqual(process.GetState(), lldb.eStateExited)
diff --git a/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/process_group/main.c b/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/process_group/main.c
new file mode 100644
index 00000000000..7e986bbac65
--- /dev/null
+++ b/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/process_group/main.c
@@ -0,0 +1,71 @@
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/wait.h>
+
+volatile int release_child_flag = 0;
+
+int main(int argc, char const *argv[])
+{
+    pid_t child = fork();
+    if (child == -1)
+    {
+        perror("fork");
+        return 1;
+    }
+
+    if (child > 0)
+    { // parent
+        if (argc < 2)
+        {
+            fprintf(stderr, "Need pid filename.\n");
+            return 2;
+        }
+
+        // Let the test suite know the child's pid.
+        FILE *pid_file = fopen(argv[1], "w");
+        if (pid_file == NULL)
+        {
+            perror("fopen");
+            return 3;
+        }
+
+        fprintf(pid_file, "%d\n", child);
+        if (fclose(pid_file) == EOF)
+        {
+            perror("fclose");
+            return 4;
+        }
+
+        // And wait for the child to finish it's work.
+        int status = 0;
+        pid_t wpid = wait(&status);
+        if (wpid == -1)
+        {
+            perror("wait");
+            return 5;
+        }
+        if (wpid != child)
+        {
+            fprintf(stderr, "wait() waited for wrong child\n");
+            return 6;
+        }
+        if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
+        {
+            fprintf(stderr, "child did not exit correctly\n");
+            return 7;
+        }
+    }
+    else
+    { // child
+        lldb_enable_attach();
+
+        while (! release_child_flag) // Wait for debugger to attach
+            sleep(1);
+
+        printf("Child's previous process group is: %d\n", getpgid(0));
+        setpgid(0, 0); // Set breakpoint here
+        printf("Child's process group set to: %d\n", getpgid(0));
+    }
+
+    return 0;
+}