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ae47a3d810
The current SWIG extensions for the string conversion operator is Python specific because it uses the PythonObjects. This means that the code cannot be reused for other SWIG supported languages such as Lua. This reimplements the extensions in a more generic way that can be reused. It uses a SWIG macro to reduce code duplication. Differential revision: https://reviews.llvm.org/D72377
335 lines
10 KiB
C++
335 lines
10 KiB
C++
//===-- SWIG Interface for SBBreakpoint -------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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namespace lldb {
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%feature("docstring",
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"Represents a logical breakpoint and its associated settings.
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For example (from test/functionalities/breakpoint/breakpoint_ignore_count/
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TestBreakpointIgnoreCount.py),
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def breakpoint_ignore_count_python(self):
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'''Use Python APIs to set breakpoint ignore count.'''
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exe = os.path.join(os.getcwd(), 'a.out')
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# Create a target by the debugger.
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target = self.dbg.CreateTarget(exe)
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self.assertTrue(target, VALID_TARGET)
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# Now create a breakpoint on main.c by name 'c'.
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breakpoint = target.BreakpointCreateByName('c', 'a.out')
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self.assertTrue(breakpoint and
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breakpoint.GetNumLocations() == 1,
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VALID_BREAKPOINT)
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# Get the breakpoint location from breakpoint after we verified that,
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# indeed, it has one location.
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location = breakpoint.GetLocationAtIndex(0)
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self.assertTrue(location and
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location.IsEnabled(),
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VALID_BREAKPOINT_LOCATION)
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# Set the ignore count on the breakpoint location.
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location.SetIgnoreCount(2)
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self.assertTrue(location.GetIgnoreCount() == 2,
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'SetIgnoreCount() works correctly')
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# Now launch the process, and do not stop at entry point.
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process = target.LaunchSimple(None, None, os.getcwd())
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self.assertTrue(process, PROCESS_IS_VALID)
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# Frame#0 should be on main.c:37, frame#1 should be on main.c:25, and
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# frame#2 should be on main.c:48.
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#lldbutil.print_stacktraces(process)
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from lldbutil import get_stopped_thread
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thread = get_stopped_thread(process, lldb.eStopReasonBreakpoint)
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self.assertTrue(thread != None, 'There should be a thread stopped due to breakpoint')
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frame0 = thread.GetFrameAtIndex(0)
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frame1 = thread.GetFrameAtIndex(1)
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frame2 = thread.GetFrameAtIndex(2)
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self.assertTrue(frame0.GetLineEntry().GetLine() == self.line1 and
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frame1.GetLineEntry().GetLine() == self.line3 and
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frame2.GetLineEntry().GetLine() == self.line4,
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STOPPED_DUE_TO_BREAKPOINT_IGNORE_COUNT)
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# The hit count for the breakpoint should be 3.
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self.assertTrue(breakpoint.GetHitCount() == 3)
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process.Continue()
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SBBreakpoint supports breakpoint location iteration, for example,
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for bl in breakpoint:
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print('breakpoint location load addr: %s' % hex(bl.GetLoadAddress()))
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print('breakpoint location condition: %s' % hex(bl.GetCondition()))
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and rich comparison methods which allow the API program to use,
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if aBreakpoint == bBreakpoint:
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...
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to compare two breakpoints for equality."
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) SBBreakpoint;
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class SBBreakpoint
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{
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public:
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SBBreakpoint ();
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SBBreakpoint (const lldb::SBBreakpoint& rhs);
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~SBBreakpoint();
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bool operator==(const lldb::SBBreakpoint &rhs);
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bool operator!=(const lldb::SBBreakpoint &rhs);
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break_id_t
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GetID () const;
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bool
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IsValid() const;
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explicit operator bool() const;
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void
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ClearAllBreakpointSites ();
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lldb::SBBreakpointLocation
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FindLocationByAddress (lldb::addr_t vm_addr);
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lldb::break_id_t
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FindLocationIDByAddress (lldb::addr_t vm_addr);
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lldb::SBBreakpointLocation
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FindLocationByID (lldb::break_id_t bp_loc_id);
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lldb::SBBreakpointLocation
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GetLocationAtIndex (uint32_t index);
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void
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SetEnabled (bool enable);
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bool
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IsEnabled ();
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void
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SetOneShot (bool one_shot);
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bool
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IsOneShot ();
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bool
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IsInternal ();
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uint32_t
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GetHitCount () const;
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void
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SetIgnoreCount (uint32_t count);
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uint32_t
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GetIgnoreCount () const;
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%feature("docstring", "
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The breakpoint stops only if the condition expression evaluates to true.") SetCondition;
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void
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SetCondition (const char *condition);
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%feature("docstring", "
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Get the condition expression for the breakpoint.") GetCondition;
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const char *
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GetCondition ();
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void SetAutoContinue(bool auto_continue);
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bool GetAutoContinue();
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void
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SetThreadID (lldb::tid_t sb_thread_id);
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lldb::tid_t
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GetThreadID ();
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void
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SetThreadIndex (uint32_t index);
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uint32_t
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GetThreadIndex() const;
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void
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SetThreadName (const char *thread_name);
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const char *
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GetThreadName () const;
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void
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SetQueueName (const char *queue_name);
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const char *
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GetQueueName () const;
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%feature("docstring", "
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Set the name of the script function to be called when the breakpoint is hit.") SetScriptCallbackFunction;
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void
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SetScriptCallbackFunction (const char *callback_function_name);
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%feature("docstring", "
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Set the name of the script function to be called when the breakpoint is hit.
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To use this variant, the function should take (frame, bp_loc, extra_args, dict) and
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when the breakpoint is hit the extra_args will be passed to the callback function.") SetScriptCallbackFunction;
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SBError
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SetScriptCallbackFunction (const char *callback_function_name,
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SBStructuredData &extra_args);
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%feature("docstring", "
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Provide the body for the script function to be called when the breakpoint is hit.
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The body will be wrapped in a function, which be passed two arguments:
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'frame' - which holds the bottom-most SBFrame of the thread that hit the breakpoint
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'bpno' - which is the SBBreakpointLocation to which the callback was attached.
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The error parameter is currently ignored, but will at some point hold the Python
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compilation diagnostics.
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Returns true if the body compiles successfully, false if not.") SetScriptCallbackBody;
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SBError
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SetScriptCallbackBody (const char *script_body_text);
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void SetCommandLineCommands(SBStringList &commands);
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bool GetCommandLineCommands(SBStringList &commands);
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bool
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AddName (const char *new_name);
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void
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RemoveName (const char *name_to_remove);
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bool
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MatchesName (const char *name);
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void
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GetNames (SBStringList &names);
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size_t
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GetNumResolvedLocations() const;
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size_t
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GetNumLocations() const;
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bool
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GetDescription (lldb::SBStream &description);
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bool
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GetDescription(lldb::SBStream &description, bool include_locations);
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// Can only be called from a ScriptedBreakpointResolver...
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SBError
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AddLocation(SBAddress &address);
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static bool
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EventIsBreakpointEvent (const lldb::SBEvent &event);
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static lldb::BreakpointEventType
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GetBreakpointEventTypeFromEvent (const lldb::SBEvent& event);
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static lldb::SBBreakpoint
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GetBreakpointFromEvent (const lldb::SBEvent& event);
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static lldb::SBBreakpointLocation
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GetBreakpointLocationAtIndexFromEvent (const lldb::SBEvent& event, uint32_t loc_idx);
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static uint32_t
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GetNumBreakpointLocationsFromEvent (const lldb::SBEvent &event_sp);
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bool
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IsHardware ();
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STRING_EXTENSION(SBBreakpoint)
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#ifdef SWIGPYTHON
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%pythoncode %{
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class locations_access(object):
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'''A helper object that will lazily hand out locations for a breakpoint when supplied an index.'''
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def __init__(self, sbbreakpoint):
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self.sbbreakpoint = sbbreakpoint
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def __len__(self):
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if self.sbbreakpoint:
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return int(self.sbbreakpoint.GetNumLocations())
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return 0
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def __getitem__(self, key):
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if type(key) is int and key < len(self):
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return self.sbbreakpoint.GetLocationAtIndex(key)
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return None
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def get_locations_access_object(self):
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'''An accessor function that returns a locations_access() object which allows lazy location access from a lldb.SBBreakpoint object.'''
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return self.locations_access (self)
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def get_breakpoint_location_list(self):
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'''An accessor function that returns a list() that contains all locations in a lldb.SBBreakpoint object.'''
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locations = []
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accessor = self.get_locations_access_object()
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for idx in range(len(accessor)):
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locations.append(accessor[idx])
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return locations
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def __iter__(self):
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'''Iterate over all breakpoint locations in a lldb.SBBreakpoint
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object.'''
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return lldb_iter(self, 'GetNumLocations', 'GetLocationAtIndex')
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def __len__(self):
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'''Return the number of breakpoint locations in a lldb.SBBreakpoint
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object.'''
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return self.GetNumLocations()
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locations = property(get_breakpoint_location_list, None, doc='''A read only property that returns a list() of lldb.SBBreakpointLocation objects for this breakpoint.''')
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location = property(get_locations_access_object, None, doc='''A read only property that returns an object that can access locations by index (not location ID) (location = bkpt.location[12]).''')
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id = property(GetID, None, doc='''A read only property that returns the ID of this breakpoint.''')
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enabled = property(IsEnabled, SetEnabled, doc='''A read/write property that configures whether this breakpoint is enabled or not.''')
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one_shot = property(IsOneShot, SetOneShot, doc='''A read/write property that configures whether this breakpoint is one-shot (deleted when hit) or not.''')
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num_locations = property(GetNumLocations, None, doc='''A read only property that returns the count of locations of this breakpoint.''')
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%}
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#endif
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};
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class SBBreakpointListImpl;
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class LLDB_API SBBreakpointList
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{
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public:
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SBBreakpointList(SBTarget &target);
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~SBBreakpointList();
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size_t GetSize() const;
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SBBreakpoint
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GetBreakpointAtIndex(size_t idx);
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SBBreakpoint
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FindBreakpointByID(lldb::break_id_t);
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void Append(const SBBreakpoint &sb_bkpt);
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bool AppendIfUnique(const SBBreakpoint &sb_bkpt);
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void AppendByID (lldb::break_id_t id);
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void Clear();
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private:
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std::shared_ptr<SBBreakpointListImpl> m_opaque_sp;
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};
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} // namespace lldb
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