Author: jingham
Date: Mon Jan 13 14:44:26 2014
New Revision: 199134
URL: http://llvm.org/viewvc/llvm-project?rev=199134&view=rev
Log:
This is a macosx specific test case for stepping & setting breakpoints on
indirect
and re-exported symbols. I don't know if Linux has the latter, if it does, we
could
probably make this a generic test. Somebody who knows how to make these
gadgets on
Linux can maybe take a look...
Added:
lldb/trunk/test/macosx/indirect_symbol/
lldb/trunk/test/macosx/indirect_symbol/Makefile
lldb/trunk/test/macosx/indirect_symbol/TestIndirectSymbols.py
lldb/trunk/test/macosx/indirect_symbol/alias.list
lldb/trunk/test/macosx/indirect_symbol/indirect.c
lldb/trunk/test/macosx/indirect_symbol/main.c
lldb/trunk/test/macosx/indirect_symbol/reexport.c
Added: lldb/trunk/test/macosx/indirect_symbol/Makefile
URL:
http://llvm.org/viewvc/llvm-project/lldb/trunk/test/macosx/indirect_symbol/Makefile?rev=199134&view=auto
==============================================================================
--- lldb/trunk/test/macosx/indirect_symbol/Makefile (added)
+++ lldb/trunk/test/macosx/indirect_symbol/Makefile Mon Jan 13 14:44:26 2014
@@ -0,0 +1,48 @@
+CC ?= clang
+ifeq "$(ARCH)" ""
+ ARCH = x86_64
+endif
+
+ifeq "$(OS)" ""
+ OS = $(shell uname -s)
+endif
+
+CFLAGS ?= -g -O0
+CWD := $(shell pwd)
+
+LIB_PREFIX := lib
+
+ifeq "$(OS)" "Darwin"
+ CFLAGS += -arch $(ARCH)
+ DS := dsymutil
+ LD_FLAGS := -dynamiclib
+ LIB_INDIRECT := $(LIB_PREFIX)indirect.dylib
+ LIB_REEXPORT := $(LIB_PREFIX)reexport.dylib
+ EXEC_PATH := "@executable_path"
+ EXEC_PATH_INDIRECT := -install_name $(EXEC_PATH)/$(LIB_INDIRECT)
+ EXEC_PATH_REEXPORT := -install_name $(EXEC_PATH)/$(LIB_REEXPORT)
+endif
+
+all: a.out $(LIB_INDIRECT) $(LIB_REEXPORT)
+
+a.out: main.o $(LIB_INDIRECT) $(LIB_REEXPORT)
+ $(CC) $(CFLAGS) -o a.out main.o -L. $(LIB_INDIRECT) $(LIB_REEXPORT)
+
+main.o: main.c
+ $(CC) $(CFLAGS) -c main.c
+
+$(LIB_INDIRECT): indirect.o
+ $(CC) $(CFLAGS) $(LD_FLAGS) $(EXEC_PATH_INDIRECT) -o $(LIB_INDIRECT)
indirect.o
+ if [ "$(OS)" = "Darwin" ]; then dsymutil $(LIB_INDIRECT); fi
+
+indirect.o: indirect.c
+ $(CC) $(CFLAGS) -c indirect.c
+
+$(LIB_REEXPORT): reexport.o $(LIB_INDIRECT)
+ $(CC) $(CFLAGS) $(LD_FLAGS) $(EXEC_PATH_REEXPORT) -o $(LIB_REEXPORT)
reexport.o -L. -lindirect -Wl,-alias_list,$(CWD)/alias.list
+ if [ "$(OS)" = "Darwin" ]; then dsymutil $(LIB_REEXPORT); fi
+
+reexport.o: reexport.c
+ $(CC) $(CFLAGS) -c reexport.c
+clean:
+ rm -rf *.o *~ *.dylib *.so a.out *.dSYM
Added: lldb/trunk/test/macosx/indirect_symbol/TestIndirectSymbols.py
URL:
http://llvm.org/viewvc/llvm-project/lldb/trunk/test/macosx/indirect_symbol/TestIndirectSymbols.py?rev=199134&view=auto
==============================================================================
--- lldb/trunk/test/macosx/indirect_symbol/TestIndirectSymbols.py (added)
+++ lldb/trunk/test/macosx/indirect_symbol/TestIndirectSymbols.py Mon Jan 13
14:44:26 2014
@@ -0,0 +1,106 @@
+"""Test stepping and setting breakpoints in indirect and re-exported
symbols."""
+
+import os, time
+import unittest2
+import lldb
+import lldbutil
+from lldbtest import *
+
+class TestObjCStepping(TestBase):
+
+ mydir = TestBase.compute_mydir(__file__)
+
+ @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
+ @python_api_test
+ @dsym_test
+ def test_with_dsym_and_python_api(self):
+ """Test stepping and setting breakpoints in indirect and re-exported
symbols."""
+ self.buildDsym()
+ self.indirect_stepping()
+
+ @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
+ @python_api_test
+ @dwarf_test
+ def test_with_dwarf_and_python_api(self):
+ """Test stepping and setting breakpoints in indirect and re-exported
symbols."""
+ self.buildDwarf()
+ self.indirect_stepping()
+
+ def setUp(self):
+ # Call super's setUp().
+ TestBase.setUp(self)
+ # Find the line numbers that we will step to in main:
+ self.main_source = "main.c"
+
+ def indirect_stepping(self):
+ """Test stepping and setting breakpoints in indirect and re-exported
symbols."""
+ exe = os.path.join(os.getcwd(), "a.out")
+
+ target = self.dbg.CreateTarget(exe)
+ self.assertTrue(target, VALID_TARGET)
+
+ self.main_source_spec = lldb.SBFileSpec (self.main_source)
+
+ break1 = target.BreakpointCreateBySourceRegex ("Set breakpoint here to
step in indirect.", self.main_source_spec)
+ self.assertTrue(break1, VALID_BREAKPOINT)
+
+ break2 = target.BreakpointCreateBySourceRegex ("Set breakpoint here to
step in reexported.", self.main_source_spec)
+ self.assertTrue(break2, VALID_BREAKPOINT)
+
+ # Now launch the process, and do not stop at entry point.
+ process = target.LaunchSimple (None, None,
self.get_process_working_directory())
+
+ self.assertTrue(process, PROCESS_IS_VALID)
+
+ # The stop reason of the thread should be breakpoint.
+ threads = lldbutil.get_threads_stopped_at_breakpoint (process, break1)
+ if len(threads) != 1:
+ self.fail ("Failed to stop at breakpoint 1.")
+
+ thread = threads[0]
+
+ # Now do a step-into, and we should end up in the hidden target of
this indirect function.
+ thread.StepInto()
+ curr_function = thread.GetFrameAtIndex(0).GetFunctionName()
+ self.assertTrue (curr_function == "call_through_indirect_hidden",
"Stepped into indirect symbols.")
+
+ # Now set a breakpoint using the indirect symbol name, and make sure
we get to that:
+ break_indirect = target.BreakpointCreateByName
("call_through_indirect");
+ self.assertTrue (break_indirect, VALID_BREAKPOINT)
+
+ # Now continue should take us to the second call through the indirect
symbol:
+
+ threads = lldbutil.continue_to_breakpoint (process, break_indirect)
+ self.assertTrue (len(threads) == 1, "Stopped at breakpoint in indirect
function.")
+ curr_function = thread.GetFrameAtIndex(0).GetFunctionName()
+ self.assertTrue (curr_function == "call_through_indirect_hidden",
"Stepped into indirect symbols.")
+
+ # Delete this breakpoint so it won't get in the way:
+ target.BreakpointDelete (break_indirect.GetID())
+
+ # Now continue to the site of the first re-exported function call in
main:
+ threads = lldbutil.continue_to_breakpoint (process, break2)
+
+ # This is stepping Into through a re-exported symbol to an indirect
symbol:
+ thread.StepInto()
+ curr_function = thread.GetFrameAtIndex(0).GetFunctionName()
+ self.assertTrue (curr_function == "call_through_indirect_hidden",
"Stepped into indirect symbols.")
+
+ # And the last bit is to set a breakpoint on the re-exported symbol
and make sure we are again in out target function.
+ break_reexported = target.BreakpointCreateByName
("reexport_to_indirect");
+ self.assertTrue (break_reexported, VALID_BREAKPOINT)
+
+ # Now continue should take us to the second call through the indirect
symbol:
+
+ threads = lldbutil.continue_to_breakpoint (process, break_reexported)
+ self.assertTrue (len(threads) == 1, "Stopped at breakpoint in
reexported function target.")
+ curr_function = thread.GetFrameAtIndex(0).GetFunctionName()
+ self.assertTrue (curr_function == "call_through_indirect_hidden",
"Stepped into indirect symbols.")
+
+
+
+if __name__ == '__main__':
+ import atexit
+ lldb.SBDebugger.Initialize()
+ atexit.register(lambda: lldb.SBDebugger.Terminate())
+ unittest2.main()
Added: lldb/trunk/test/macosx/indirect_symbol/alias.list
URL:
http://llvm.org/viewvc/llvm-project/lldb/trunk/test/macosx/indirect_symbol/alias.list?rev=199134&view=auto
==============================================================================
--- lldb/trunk/test/macosx/indirect_symbol/alias.list (added)
+++ lldb/trunk/test/macosx/indirect_symbol/alias.list Mon Jan 13 14:44:26 2014
@@ -0,0 +1 @@
+_call_through_indirect _reexport_to_indirect
\ No newline at end of file
Added: lldb/trunk/test/macosx/indirect_symbol/indirect.c
URL:
http://llvm.org/viewvc/llvm-project/lldb/trunk/test/macosx/indirect_symbol/indirect.c?rev=199134&view=auto
==============================================================================
--- lldb/trunk/test/macosx/indirect_symbol/indirect.c (added)
+++ lldb/trunk/test/macosx/indirect_symbol/indirect.c Mon Jan 13 14:44:26 2014
@@ -0,0 +1,14 @@
+#define MakeResolver(name) \
+ void * name ## Resolver(void) __asm__("_" #name); \
+ void * name ## Resolver(void) { \
+ __asm__(".symbol_resolver _" #name); \
+ return name ## _hidden; \
+ }
+
+int
+call_through_indirect_hidden(int arg)
+{
+ return arg + 5;
+}
+
+MakeResolver(call_through_indirect)
Added: lldb/trunk/test/macosx/indirect_symbol/main.c
URL:
http://llvm.org/viewvc/llvm-project/lldb/trunk/test/macosx/indirect_symbol/main.c?rev=199134&view=auto
==============================================================================
--- lldb/trunk/test/macosx/indirect_symbol/main.c (added)
+++ lldb/trunk/test/macosx/indirect_symbol/main.c Mon Jan 13 14:44:26 2014
@@ -0,0 +1,14 @@
+extern int call_through_indirect(int);
+extern int call_through_reexport(int);
+
+int
+main ()
+{
+ int indirect_result = call_through_indirect(20); // Set breakpoint here to
step in indirect.
+ indirect_result = call_through_indirect(30);
+
+ int reexport_result = reexport_to_indirect (20); // Set breakpoint here to
step in reexported.
+ reexport_result = reexport_to_indirect (30);
+
+ return 0;
+}
Added: lldb/trunk/test/macosx/indirect_symbol/reexport.c
URL:
http://llvm.org/viewvc/llvm-project/lldb/trunk/test/macosx/indirect_symbol/reexport.c?rev=199134&view=auto
==============================================================================
--- lldb/trunk/test/macosx/indirect_symbol/reexport.c (added)
+++ lldb/trunk/test/macosx/indirect_symbol/reexport.c Mon Jan 13 14:44:26 2014
@@ -0,0 +1,7 @@
+extern int call_through_indirect(int);
+
+int
+fake_call_through_reexport(int value)
+{
+ return value + 10;
+}
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