Import LLVM 10.0.0 release including clang, lld and lldb.

ok hackroom
tested by plenty

4 files changed, 191 insertions, 0 deletions

diff --git a/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/jitloader_gdb/Makefile b/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/jitloader_gdb/Makefile
new file mode 100644
index 00000000000..357b1f83684
--- /dev/null
+++ b/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/jitloader_gdb/Makefile
@@ -0,0 +1,9 @@
+C_SOURCES := main.c
+
+all: a.out simple
+
+include Makefile.rules
+
+simple:
+	$(MAKE) -f $(MAKEFILE_RULES) \
+		C_SOURCES=simple.c EXE=simple
diff --git a/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/jitloader_gdb/TestJITLoaderGDB.py b/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/jitloader_gdb/TestJITLoaderGDB.py
new file mode 100644
index 00000000000..4bd4150185c
--- /dev/null
+++ b/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/jitloader_gdb/TestJITLoaderGDB.py
@@ -0,0 +1,118 @@
+"""Test for the JITLoaderGDB interface"""
+
+
+import unittest2
+import os
+import lldb
+from lldbsuite.test import lldbutil
+from lldbsuite.test.decorators import *
+from lldbsuite.test.lldbtest import *
+
+file_index = 0
+
+class JITLoaderGDBTestCase(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    @skipTestIfFn(
+        lambda: "Skipped because the test crashes the test runner",
+        bugnumber="llvm.org/pr24702")
+    @unittest2.expectedFailure("llvm.org/pr24702")
+    def test_bogus_values(self):
+        """Test that we handle inferior misusing the GDB JIT interface"""
+        self.build()
+        exe = self.getBuildArtifact("a.out")
+
+        # Create a target by the debugger.
+        target = self.dbg.CreateTarget(exe)
+        self.assertTrue(target, VALID_TARGET)
+
+        # launch the process, do not stop at entry point.
+        process = target.LaunchSimple(
+            None, None, self.get_process_working_directory())
+        self.assertTrue(process, PROCESS_IS_VALID)
+
+        # The inferior will now pass bogus values over the interface. Make sure
+        # we don't crash.
+
+        self.assertEqual(process.GetState(), lldb.eStateExited)
+        self.assertEqual(process.GetExitStatus(), 0)
+
+    def gen_log_file(self):
+        global file_index
+        ++file_index
+        logfile = os.path.join(
+            self.getBuildDir(),
+            "jitintgdb-" + self.getArchitecture() + "-" +
+                str(file_index) + ".txt")
+
+        def cleanup():
+            if os.path.exists(logfile):
+                os.unlink(logfile)
+        self.addTearDownHook(cleanup)
+        return logfile
+
+    def test_jit_int_default(self):
+        self.expect("settings show plugin.jit-loader.gdb.enable",
+                    substrs=["plugin.jit-loader.gdb.enable (enum) = default"])
+
+    @skipIfWindows # This test fails on Windows during C code build
+    def test_jit_int_on(self):
+        """Tests interface with 'enable' settings 'on'"""
+        self.build()
+        exe = self.getBuildArtifact("simple")
+
+        logfile = self.gen_log_file()
+        self.runCmd("log enable -f %s lldb jit" % (logfile))
+        self.runCmd("settings set plugin.jit-loader.gdb.enable on")
+        def cleanup():
+            self.runCmd("log disable lldb")
+            self.runCmd("settings set plugin.jit-loader.gdb.enable default")
+        self.addTearDownHook(cleanup)
+
+        # launch the process
+        target = self.dbg.CreateTarget(exe)
+        self.assertTrue(target, VALID_TARGET)
+        process = target.LaunchSimple(
+            None, None, self.get_process_working_directory())
+        self.assertTrue(process, PROCESS_IS_VALID)
+
+        self.assertEqual(process.GetState(), lldb.eStateExited)
+        self.assertEqual(process.GetExitStatus(), 0)
+
+        logcontent = ""
+        if os.path.exists(logfile):
+            logcontent = open(logfile).read()
+        self.assertIn(
+            "SetJITBreakpoint setting JIT breakpoint", logcontent)
+
+    @skipIfWindows # This test fails on Windows during C code build
+    def test_jit_int_off(self):
+        """Tests interface with 'enable' settings 'off'"""
+        self.build()
+        exe = self.getBuildArtifact("simple")
+
+        logfile = self.gen_log_file()
+        self.runCmd("log enable -f %s lldb jit" % (logfile))
+        self.runCmd("settings set plugin.jit-loader.gdb.enable off")
+        def cleanup():
+            self.runCmd("log disable lldb")
+            self.runCmd("settings set plugin.jit-loader.gdb.enable default")
+        self.addTearDownHook(cleanup)
+
+        # launch the process
+        target = self.dbg.CreateTarget(exe)
+        self.assertTrue(target, VALID_TARGET)
+        process = target.LaunchSimple(
+            None, None, self.get_process_working_directory())
+        self.assertTrue(process, PROCESS_IS_VALID)
+
+        self.assertEqual(process.GetState(), lldb.eStateExited)
+        self.assertEqual(process.GetExitStatus(), 0)
+
+        if os.path.exists(logfile):
+            logcontent = open(logfile).read()
+            self.assertNotIn(
+              "SetJITBreakpoint setting JIT breakpoint", logcontent)
+        else:
+            self.assertTrue(false)
diff --git a/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/jitloader_gdb/main.c b/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/jitloader_gdb/main.c
new file mode 100644
index 00000000000..6a8ec50e663
--- /dev/null
+++ b/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/jitloader_gdb/main.c
@@ -0,0 +1,44 @@
+#include <inttypes.h>
+
+// GDB JIT interface
+enum JITAction { JIT_NOACTION, JIT_REGISTER_FN, JIT_UNREGISTER_FN };
+
+struct JITCodeEntry
+{
+    struct JITCodeEntry* next;
+    struct JITCodeEntry* prev;
+    const char *symfile_addr;
+    uint64_t symfile_size;
+};
+
+struct JITDescriptor
+{
+    uint32_t version;
+    uint32_t action_flag;
+    struct JITCodeEntry* relevant_entry;
+    struct JITCodeEntry* first_entry;
+};
+
+struct JITDescriptor __jit_debug_descriptor = { 1, JIT_NOACTION, 0, 0 };
+
+void __jit_debug_register_code()
+{
+}
+// end GDB JIT interface
+
+struct JITCodeEntry entry;
+
+int main()
+{
+    // Create a code entry with a bogus size
+    entry.next = entry.prev = 0;
+    entry.symfile_addr = (char *)&entry;
+    entry.symfile_size = (uint64_t)47<<32;
+
+    __jit_debug_descriptor.relevant_entry = __jit_debug_descriptor.first_entry = &entry;
+    __jit_debug_descriptor.action_flag = JIT_REGISTER_FN;
+
+    __jit_debug_register_code();
+
+    return 0;
+}
diff --git a/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/jitloader_gdb/simple.c b/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/jitloader_gdb/simple.c
new file mode 100644
index 00000000000..77b1a2ad812
--- /dev/null
+++ b/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/jitloader_gdb/simple.c
@@ -0,0 +1,20 @@
+#include <inttypes.h>
+
+// GDB JIT interface stub
+struct
+{
+    uint32_t version;
+    uint32_t action_flag;
+    void* relevant_entry;
+    void* first_entry;
+} __jit_debug_descriptor = { 1, 0, 0, 0 };
+
+void __jit_debug_register_code()
+{
+}
+// end GDB JIT interface stub
+
+int main()
+{
+    return 0;
+}