[Lldb-commits] [lldb] r121796 - in /lldb/trunk/test/load_unload: TestLoadUnload.py d.c main.c

[Johnny Chen]

Author: johnny
Date: Tue Dec 14 16:26:34 2010
New Revision: 121796

URL: http://llvm.org/viewvc/llvm-project?rev=121796&view=rev
Log:
Added a test case LoadUnloadTestCase.test_dyld_library_path to test launching a process
linked with a dylib which has been relocated by specifying the DYLD_LIBRARY_PATH environment
variable.  Test that the function name breakpoint defined in the dylib is resolved.

Modified:
    lldb/trunk/test/load_unload/TestLoadUnload.py
    lldb/trunk/test/load_unload/d.c
    lldb/trunk/test/load_unload/main.c

Modified: lldb/trunk/test/load_unload/TestLoadUnload.py
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/test/load_unload/TestLoadUnload.py?rev=121796&r1=121795&r2=121796&view=diff
==============================================================================
--- lldb/trunk/test/load_unload/TestLoadUnload.py (original)
+++ lldb/trunk/test/load_unload/TestLoadUnload.py Tue Dec 14 16:26:34 2010
@@ -1,5 +1,5 @@
 """
-Test that breakpoint by symbol name works correctly dlopen'ing a dynamic lib.
+Test that breakpoint by symbol name works correctly with dynamic libs.
 """
 
 import os, time
@@ -18,6 +18,62 @@
         # Find the line number to break for main.cpp.
         self.line = line_number('main.c',
                                 '// Set break point at this line for test_lldb_process_load_and_unload_commands().')
+        self.line_d_function = line_number('d.c',
+                                           '// Find this line number within d_dunction().')
+
+    def test_dyld_library_path(self):
+        """Test DYLD_LIBRARY_PATH after moving libd.dylib, which defines d_function, somewhere else."""
+
+        # Invoke the default build rule.
+        self.buildDefault()
+
+        if sys.platform.startswith("darwin"):
+            dylibName = 'libd.dylib'
+            dsymName = 'libd.dylib.dSYM'
+            dylibPath = 'DYLD_LIBRARY_PATH'
+
+        # Now let's move the dynamic library to a different directory than $CWD.
+
+        # The directory to relocate the dynamic library and its debugging info.
+        new_dir = os.path.join(os.getcwd(), "dyld_path")
+
+        # This is the function to remove the dyld_path directory after the test.
+        def remove_dyld_path():
+            import shutil
+            shutil.rmtree(new_dir)
+
+        old_dylib = os.path.join(os.getcwd(), dylibName)
+        new_dylib = os.path.join(new_dir, dylibName)
+        old_dSYM = os.path.join(os.getcwd(), dsymName)
+        new_dSYM = os.path.join(new_dir, dsymName)
+        #system(["ls", "-lR", "."])
+        os.mkdir(new_dir)
+        os.rename(old_dylib, new_dylib)
+        if dsymName:
+            os.rename(old_dSYM, new_dSYM)
+        self.addTearDownHook(remove_dyld_path)
+        #system(["ls", "-lR", "."])
+
+        # With libd.dylib moved, a.out run should fail.
+        exe = os.path.join(os.getcwd(), "a.out")
+        self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
+        # Set breakpoint by function name d_function.
+        self.expect("breakpoint set -n d_function", BREAKPOINT_CREATED,
+            substrs = ["Breakpoint created",
+                       "name = 'd_function'",
+                       "locations = 0 (pending)"])
+        self.runCmd("run")
+        self.expect("process status", "Not expected to hit the d_function breakpoint",
+                    matching=False,
+            substrs = ["stop reason = breakpoint"])
+        # Kill the inferior process.
+        self.runCmd("process kill")
+
+        # Try again with the DYLD_LIBRARY_PATH environment variable properly set.
+        os.environ[dylibPath] = new_dir
+        self.runCmd("run")
+        self.expect("thread backtrace", STOPPED_DUE_TO_BREAKPOINT,
+            patterns = ["frame #0.*d_function.*at d.c:%d" % self.line_d_function])
 
     def test_lldb_process_load_and_unload_commands(self):
         """Test that lldb process load/unload command work correctly."""
@@ -68,7 +124,6 @@
 
         self.runCmd("process continue")
 
-
     def test_load_unload(self):
         """Test breakpoint by name works correctly with dlopen'ing."""
 

Modified: lldb/trunk/test/load_unload/d.c
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/test/load_unload/d.c?rev=121796&r1=121795&r2=121796&view=diff
==============================================================================
--- lldb/trunk/test/load_unload/d.c (original)
+++ lldb/trunk/test/load_unload/d.c Tue Dec 14 16:26:34 2010
@@ -9,5 +9,5 @@
 int
 d_function ()
 {
-    return 700;
+    return 700; // Find this line number within d_dunction().
 }

Modified: lldb/trunk/test/load_unload/main.c
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/test/load_unload/main.c?rev=121796&r1=121795&r2=121796&view=diff
==============================================================================
--- lldb/trunk/test/load_unload/main.c (original)
+++ lldb/trunk/test/load_unload/main.c Tue Dec 14 16:26:34 2010
@@ -68,5 +68,8 @@
     printf ("Second time around, got: %d\n", a_function ());
     dlclose (a_dylib_handle);
 
+    int d_function(void);
+    printf ("d_function returns: %d\n", d_function());
+
     return 0;
 }