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e72dfb321c
I started work on being able to add symbol files after a debug session had started with a new "target symfile add" command and quickly ran into problems with stale Address objects in breakpoint locations that had lldb_private::Section pointers into modules that had been removed or replaced. This also let to grabbing stale modules from those sections. So I needed to thread harded the Address, Section and related objects. To do this I modified the ModuleChild class to now require a ModuleSP on initialization so that a weak reference can created. I also changed all places that were handing out "Section *" to have them hand out SectionSP. All ObjectFile, SymbolFile and SymbolVendors were inheriting from ModuleChild so all of the find plug-in, static creation function and constructors now require ModuleSP references instead of Module *. Address objects now have weak references to their sections which can safely go stale when a module gets destructed. This checkin doesn't complete the "target symfile add" command, but it does get us a lot clioser to being able to do such things without a high risk of crashing or memory corruption. llvm-svn: 151336
47 lines
955 B
C++
47 lines
955 B
C++
//===-- ModuleChild.cpp -----------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "lldb/Core/ModuleChild.h"
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using namespace lldb_private;
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ModuleChild::ModuleChild (const lldb::ModuleSP &module_sp) :
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m_module_wp (module_sp)
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{
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}
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ModuleChild::ModuleChild (const ModuleChild& rhs) :
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m_module_wp(rhs.m_module_wp)
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{
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}
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ModuleChild::~ModuleChild()
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{
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}
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const ModuleChild&
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ModuleChild::operator= (const ModuleChild& rhs)
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{
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if (this != &rhs)
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m_module_wp = rhs.m_module_wp;
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return *this;
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}
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lldb::ModuleSP
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ModuleChild::GetModule () const
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{
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return m_module_wp.lock();
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}
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void
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ModuleChild::SetModule (const lldb::ModuleSP &module_sp)
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{
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m_module_wp = module_sp;
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}
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