Factored the code that implements breakpoints on
exceptions for different languages out of
ThreadPlanCallFunction and put it into the
appropriate language runtimes.
llvm-svn: 118200
diff --git a/lldb/source/Plugins/LanguageRuntime/CPlusPlus/ItaniumABI/ItaniumABILanguageRuntime.cpp b/lldb/source/Plugins/LanguageRuntime/CPlusPlus/ItaniumABI/ItaniumABILanguageRuntime.cpp
index 425c8f7..8a7cfc2c 100644
--- a/lldb/source/Plugins/LanguageRuntime/CPlusPlus/ItaniumABI/ItaniumABILanguageRuntime.cpp
+++ b/lldb/source/Plugins/LanguageRuntime/CPlusPlus/ItaniumABI/ItaniumABILanguageRuntime.cpp
@@ -9,6 +9,7 @@
#include "ItaniumABILanguageRuntime.h"
+#include "lldb/Breakpoint/BreakpointLocation.h"
#include "lldb/Core/ConstString.h"
#include "lldb/Core/Error.h"
#include "lldb/Core/Module.h"
@@ -17,6 +18,7 @@
#include "lldb/Symbol/ClangASTContext.h"
#include "lldb/Target/Process.h"
#include "lldb/Target/RegisterContext.h"
+#include "lldb/Target/StopInfo.h"
#include "lldb/Target/Target.h"
#include "lldb/Target/Thread.h"
@@ -116,3 +118,89 @@
{
return NULL;
}
+
+void
+ItaniumABILanguageRuntime::SetExceptionBreakpoints ()
+{
+ if (!m_process)
+ return;
+
+ if (!m_cxx_exception_bp_sp)
+ m_cxx_exception_bp_sp = m_process->GetTarget().CreateBreakpoint (NULL,
+ "__cxa_throw",
+ eFunctionNameTypeBase,
+ true);
+
+ if (!m_cxx_exception_alloc_bp_sp)
+ m_cxx_exception_alloc_bp_sp = m_process->GetTarget().CreateBreakpoint (NULL,
+ "__cxa_allocate",
+ eFunctionNameTypeBase,
+ true);
+}
+
+void
+ItaniumABILanguageRuntime::ClearExceptionBreakpoints ()
+{
+ if (!m_process)
+ return;
+
+ if (m_cxx_exception_bp_sp.get())
+ {
+ m_process->GetTarget().RemoveBreakpointByID(m_cxx_exception_bp_sp->GetID());
+ m_cxx_exception_bp_sp.reset();
+ }
+
+ if (m_cxx_exception_alloc_bp_sp.get())
+ {
+ m_process->GetTarget().RemoveBreakpointByID(m_cxx_exception_alloc_bp_sp->GetID());
+ m_cxx_exception_bp_sp.reset();
+ }
+}
+
+bool
+ItaniumABILanguageRuntime::ExceptionBreakpointsExplainStop (lldb::StopInfoSP stop_reason)
+{
+ if (!m_process)
+ return false;
+
+ if (!stop_reason ||
+ stop_reason->GetStopReason() != eStopReasonBreakpoint)
+ return false;
+
+ uint64_t break_site_id = stop_reason->GetValue();
+ lldb::BreakpointSiteSP bp_site_sp = m_process->GetBreakpointSiteList().FindByID(break_site_id);
+
+ if (!bp_site_sp)
+ return false;
+
+ uint32_t num_owners = bp_site_sp->GetNumberOfOwners();
+
+ bool check_cxx_exception = false;
+ break_id_t cxx_exception_bid;
+
+ bool check_cxx_exception_alloc = false;
+ break_id_t cxx_exception_alloc_bid;
+
+ if (m_cxx_exception_bp_sp)
+ {
+ check_cxx_exception = true;
+ cxx_exception_bid = m_cxx_exception_bp_sp->GetID();
+ }
+
+ if (m_cxx_exception_alloc_bp_sp)
+ {
+ check_cxx_exception_alloc = true;
+ cxx_exception_alloc_bid = m_cxx_exception_alloc_bp_sp->GetID();
+ }
+
+ for (uint32_t i = 0; i < num_owners; i++)
+ {
+ break_id_t bid = bp_site_sp->GetOwnerAtIndex(i)->GetBreakpoint().GetID();
+
+ if ((check_cxx_exception && (bid == cxx_exception_bid)) ||
+ (check_cxx_exception_alloc && (bid == cxx_exception_alloc_bid)))
+ return true;
+ }
+
+ return false;
+}
diff --git a/lldb/source/Plugins/LanguageRuntime/CPlusPlus/ItaniumABI/ItaniumABILanguageRuntime.h b/lldb/source/Plugins/LanguageRuntime/CPlusPlus/ItaniumABI/ItaniumABILanguageRuntime.h
index 817c076..113ed51 100644
--- a/lldb/source/Plugins/LanguageRuntime/CPlusPlus/ItaniumABI/ItaniumABILanguageRuntime.h
+++ b/lldb/source/Plugins/LanguageRuntime/CPlusPlus/ItaniumABI/ItaniumABILanguageRuntime.h
@@ -65,9 +65,22 @@
virtual lldb_private::Log *
EnablePluginLogging (lldb_private::Stream *strm, lldb_private::Args &command);
+
+ virtual void
+ SetExceptionBreakpoints ();
+
+ virtual void
+ ClearExceptionBreakpoints ();
+
+ virtual bool
+ ExceptionBreakpointsExplainStop (lldb::StopInfoSP stop_reason);
+
protected:
private:
ItaniumABILanguageRuntime(Process *process) : lldb_private::CPPLanguageRuntime(process) { } // Call CreateInstance instead.
+
+ lldb::BreakpointSP m_cxx_exception_bp_sp;
+ lldb::BreakpointSP m_cxx_exception_alloc_bp_sp;
};
} // namespace lldb_private
diff --git a/lldb/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntimeV2/AppleObjCRuntimeV2.cpp b/lldb/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntimeV2/AppleObjCRuntimeV2.cpp
index 213827c..7b99334 100644
--- a/lldb/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntimeV2/AppleObjCRuntimeV2.cpp
+++ b/lldb/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntimeV2/AppleObjCRuntimeV2.cpp
@@ -10,8 +10,10 @@
#include "AppleObjCRuntimeV2.h"
#include "AppleObjCTrampolineHandler.h"
+#include "llvm/Support/MachO.h"
#include "clang/AST/Type.h"
+#include "lldb/Breakpoint/BreakpointLocation.h"
#include "lldb/Core/ConstString.h"
#include "lldb/Core/Error.h"
#include "lldb/Core/Log.h"
@@ -24,6 +26,7 @@
#include "lldb/Target/ExecutionContext.h"
#include "lldb/Target/Process.h"
#include "lldb/Target/RegisterContext.h"
+#include "lldb/Target/StopInfo.h"
#include "lldb/Target/Target.h"
#include "lldb/Target/Thread.h"
@@ -286,3 +289,84 @@
{
return NULL;
}
+
+void
+AppleObjCRuntimeV2::SetExceptionBreakpoints ()
+{
+ if (!m_process)
+ return;
+
+ if (!m_objc_exception_bp_sp)
+ {
+ ArchSpec arch_spec = m_process->GetTarget().GetArchitecture();
+
+ switch (arch_spec.GetCPUType())
+ {
+ default:
+ break;
+ case llvm::MachO::CPUTypeI386:
+ m_objc_exception_bp_sp = m_process->GetTarget().CreateBreakpoint (NULL,
+ "objc_exception_throw",
+ eFunctionNameTypeBase,
+ true);
+ break;
+ case llvm::MachO::CPUTypeX86_64:
+ m_objc_exception_bp_sp = m_process->GetTarget().CreateBreakpoint (NULL,
+ "__cxa_throw",
+ eFunctionNameTypeBase,
+ true);
+ break;
+ }
+ }
+}
+
+void
+AppleObjCRuntimeV2::ClearExceptionBreakpoints ()
+{
+ if (!m_process)
+ return;
+
+ if (m_objc_exception_bp_sp.get())
+ {
+ m_process->GetTarget().RemoveBreakpointByID(m_objc_exception_bp_sp->GetID());
+ m_objc_exception_bp_sp.reset();
+ }
+}
+
+bool
+AppleObjCRuntimeV2::ExceptionBreakpointsExplainStop (lldb::StopInfoSP stop_reason)
+{
+ if (!m_process)
+ return false;
+
+ if (!stop_reason ||
+ stop_reason->GetStopReason() != eStopReasonBreakpoint)
+ return false;
+
+ uint64_t break_site_id = stop_reason->GetValue();
+ lldb::BreakpointSiteSP bp_site_sp = m_process->GetBreakpointSiteList().FindByID(break_site_id);
+
+ if (!bp_site_sp)
+ return false;
+
+ uint32_t num_owners = bp_site_sp->GetNumberOfOwners();
+
+ bool check_objc_exception = false;
+ break_id_t objc_exception_bid;
+
+ if (m_objc_exception_bp_sp)
+ {
+ check_objc_exception = true;
+ objc_exception_bid = m_objc_exception_bp_sp->GetID();
+ }
+
+ for (uint32_t i = 0; i < num_owners; i++)
+ {
+ break_id_t bid = bp_site_sp->GetOwnerAtIndex(i)->GetBreakpoint().GetID();
+
+ if ((check_objc_exception && (bid == objc_exception_bid)))
+ return true;
+ }
+
+ return false;
+}
diff --git a/lldb/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntimeV2/AppleObjCRuntimeV2.h b/lldb/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntimeV2/AppleObjCRuntimeV2.h
index fcd1ec2..d80881a 100644
--- a/lldb/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntimeV2/AppleObjCRuntimeV2.h
+++ b/lldb/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntimeV2/AppleObjCRuntimeV2.h
@@ -87,6 +87,15 @@
virtual lldb_private::Log *
EnablePluginLogging (lldb_private::Stream *strm, lldb_private::Args &command);
+
+ virtual void
+ SetExceptionBreakpoints ();
+
+ virtual void
+ ClearExceptionBreakpoints ();
+
+ virtual bool
+ ExceptionBreakpointsExplainStop (lldb::StopInfoSP stop_reason);
protected:
Address *
GetPrintForDebuggerAddr();
@@ -95,6 +104,7 @@
std::auto_ptr<Address> m_PrintForDebugger_addr;
bool m_read_objc_library;
std::auto_ptr<lldb_private::AppleObjCTrampolineHandler> m_objc_trampoline_handler_ap;
+ lldb::BreakpointSP m_objc_exception_bp_sp;
AppleObjCRuntimeV2(Process *process) :
lldb_private::ObjCLanguageRuntime(process),