Add the ability (through the SB API & command line) to specify an address

breakpoint as "file address" so that the address breakpoint will track that
module even if it gets loaded in a different place.  Also fixed the Address
breakpoint resolver so that it handles this tracking correctly.

llvm-svn: 253308

3 files changed, 105 insertions, 0 deletions

diff --git a/lldb/packages/Python/lldbsuite/test/functionalities/breakpoint/address_breakpoints/Makefile b/lldb/packages/Python/lldbsuite/test/functionalities/breakpoint/address_breakpoints/Makefile
new file mode 100644
index 00000000000..6067ee45e98
--- /dev/null
+++ b/lldb/packages/Python/lldbsuite/test/functionalities/breakpoint/address_breakpoints/Makefile
@@ -0,0 +1,6 @@
+LEVEL = ../../../make
+
+C_SOURCES := main.c
+CFLAGS_EXTRAS += -std=c99
+
+include $(LEVEL)/Makefile.rules
diff --git a/lldb/packages/Python/lldbsuite/test/functionalities/breakpoint/address_breakpoints/TestAddressBreakpoints.py b/lldb/packages/Python/lldbsuite/test/functionalities/breakpoint/address_breakpoints/TestAddressBreakpoints.py
new file mode 100644
index 00000000000..9442a076e2a
--- /dev/null
+++ b/lldb/packages/Python/lldbsuite/test/functionalities/breakpoint/address_breakpoints/TestAddressBreakpoints.py
@@ -0,0 +1,91 @@
+"""
+Test address breakpoints set with shared library of SBAddress work correctly.
+"""
+
+from __future__ import print_function
+
+
+
+import os, time
+import re
+import lldb
+import lldbsuite.test.lldbutil as lldbutil
+from lldbsuite.test.lldbtest import *
+
+class AddressBreakpointTestCase(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    def test_address_breakpoints (self):
+        """Test address breakpoints set with shared library of SBAddress work correctly."""
+        self.build()
+        self.address_breakpoints()
+
+    def setUp(self):
+        # Call super's setUp().
+        TestBase.setUp(self)
+
+    def address_breakpoints(self):
+        """Test address breakpoints set with shared library of SBAddress work correctly."""
+        exe = os.path.join(os.getcwd(), "a.out")
+
+        # Create a target by the debugger.
+        target = self.dbg.CreateTarget(exe)
+        self.assertTrue(target, VALID_TARGET)
+
+        # Now create a breakpoint on main.c by name 'c'.
+        breakpoint = target.BreakpointCreateBySourceRegex("Set a breakpoint here", lldb.SBFileSpec("main.c"))
+        self.assertTrue(breakpoint and
+                        breakpoint.GetNumLocations() == 1,
+                        VALID_BREAKPOINT)
+
+        # Get the breakpoint location from breakpoint after we verified that,
+        # indeed, it has one location.
+        location = breakpoint.GetLocationAtIndex(0)
+        self.assertTrue(location and
+                        location.IsEnabled(),
+                        VALID_BREAKPOINT_LOCATION)
+
+        # Next get the address from the location, and create an address breakpoint using
+        # that address:
+        
+        address = location.GetAddress()
+        target.BreakpointDelete(breakpoint.GetID())
+
+        breakpoint = target.BreakpointCreateBySBAddress(address)
+
+        # Disable ASLR.  This will allow us to actually test (on platforms that support this flag)
+        # that the breakpoint was able to track the module.
+
+        launch_info = lldb.SBLaunchInfo(None)
+        flags = launch_info.GetLaunchFlags()
+        flags &= ~lldb.eLaunchFlagDisableASLR
+        launch_info.SetLaunchFlags(flags)
+        
+        error = lldb.SBError()
+
+        process = target.Launch (launch_info, error)
+        self.assertTrue(process, PROCESS_IS_VALID)
+
+        # Did we hit our breakpoint?
+        from lldbsuite.test.lldbutil import get_threads_stopped_at_breakpoint 
+        threads = get_threads_stopped_at_breakpoint (process, breakpoint)
+        self.assertTrue(len(threads) == 1, "There should be a thread stopped at our breakpoint")
+
+        # The hit count for the breakpoint should be 1.
+        self.assertTrue(breakpoint.GetHitCount() == 1)
+
+        process.Kill()
+
+        # Now re-launch and see that we hit the breakpoint again:
+        launch_info.Clear()
+        launch_info.SetLaunchFlags(flags)
+
+        process = target.Launch(launch_info, error)
+        self.assertTrue (process, PROCESS_IS_VALID)
+
+        thread = get_threads_stopped_at_breakpoint (process, breakpoint)
+        self.assertTrue(len(threads) == 1, "There should be a thread stopped at our breakpoint")
+
+        # The hit count for the breakpoint should now be 2.
+        self.assertTrue(breakpoint.GetHitCount() == 2)
diff --git a/lldb/packages/Python/lldbsuite/test/functionalities/breakpoint/address_breakpoints/main.c b/lldb/packages/Python/lldbsuite/test/functionalities/breakpoint/address_breakpoints/main.c
new file mode 100644
index 00000000000..6b779296e18
--- /dev/null
+++ b/lldb/packages/Python/lldbsuite/test/functionalities/breakpoint/address_breakpoints/main.c
@@ -0,0 +1,8 @@
+#include <stdio.h>
+
+int
+main()
+{
+    printf ("Set a breakpoint here.\n");
+    return 0;
+}