Vendor import of lldb trunk r256945:

https://llvm.org/svn/llvm-project/lldb/trunk@256945

3 files changed, 86 insertions, 0 deletions

diff --git a/packages/Python/lldbsuite/test/functionalities/jitloader_gdb/Makefile b/packages/Python/lldbsuite/test/functionalities/jitloader_gdb/Makefile
new file mode 100644
index 0000000..0d70f25
--- /dev/null
+++ b/packages/Python/lldbsuite/test/functionalities/jitloader_gdb/Makefile
@@ -0,0 +1,5 @@
+LEVEL = ../../make
+
+C_SOURCES := main.c
+
+include $(LEVEL)/Makefile.rules
diff --git a/packages/Python/lldbsuite/test/functionalities/jitloader_gdb/TestJITLoaderGDB.py b/packages/Python/lldbsuite/test/functionalities/jitloader_gdb/TestJITLoaderGDB.py
new file mode 100644
index 0000000..c7abf34
--- /dev/null
+++ b/packages/Python/lldbsuite/test/functionalities/jitloader_gdb/TestJITLoaderGDB.py
@@ -0,0 +1,37 @@
+"""Test for the JITLoaderGDB interface"""
+
+from __future__ import print_function
+
+
+
+import unittest2
+import os
+import lldb
+from lldbsuite.test.lldbtest import *
+import lldbsuite.test.lldbutil as lldbutil
+import re
+
+
+class JITLoaderGDBTestCase(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    @skipTestIfFn(lambda x: True, "llvm.org/pr24702", "Skipped because the test crashes the test runner")
+    @unittest2.expectedFailure("llvm.org/pr24702")
+    def test_bogus_values(self):
+        """Test that we handle inferior misusing the GDB JIT interface"""
+        self.build()
+        exe = os.path.join(os.getcwd(), "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)
diff --git a/packages/Python/lldbsuite/test/functionalities/jitloader_gdb/main.c b/packages/Python/lldbsuite/test/functionalities/jitloader_gdb/main.c
new file mode 100644
index 0000000..6a8ec50
--- /dev/null
+++ b/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;
+}