forked from OSchip/llvm-project
276 lines
7.6 KiB
C++
276 lines
7.6 KiB
C++
//===-- BreakpointSiteList.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/Breakpoint/BreakpointSiteList.h"
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// C Includes
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// C++ Includes
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// Other libraries and framework includes
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// Project includes
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#include "lldb/Core/Stream.h"
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#include <algorithm>
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using namespace lldb;
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using namespace lldb_private;
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BreakpointSiteList::BreakpointSiteList() :
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m_bp_site_list()
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{
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}
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BreakpointSiteList::~BreakpointSiteList()
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{
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}
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// Add breakpoint site to the list. However, if the element already exists in the
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// list, then we don't add it, and return LLDB_INVALID_BREAK_ID.
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lldb::break_id_t
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BreakpointSiteList::Add(const BreakpointSiteSP &bp)
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{
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lldb::addr_t bp_site_load_addr = bp->GetLoadAddress();
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collection::iterator iter = m_bp_site_list.find (bp_site_load_addr);
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if (iter == m_bp_site_list.end())
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{
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m_bp_site_list.insert (iter, collection::value_type (bp_site_load_addr, bp));
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return bp->GetID();
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}
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else
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{
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return LLDB_INVALID_BREAK_ID;
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}
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}
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bool
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BreakpointSiteList::ShouldStop (StoppointCallbackContext *context, lldb::break_id_t site_id)
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{
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BreakpointSiteSP site_sp (FindByID (site_id));
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if (site_sp)
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{
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// Let the BreakpointSite decide if it should stop here (could not have
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// reached it's target hit count yet, or it could have a callback
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// that decided it shouldn't stop (shared library loads/unloads).
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return site_sp->ShouldStop (context);
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}
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// We should stop here since this BreakpointSite isn't valid anymore or it
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// doesn't exist.
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return true;
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}
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lldb::break_id_t
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BreakpointSiteList::FindIDByAddress (lldb::addr_t addr)
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{
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BreakpointSiteSP bp = FindByAddress (addr);
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if (bp)
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{
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//DBLogIf(PD_LOG_BREAKPOINTS, "BreakpointSiteList::%s ( addr = 0x%8.8" PRIx64 " ) => %u", __FUNCTION__, (uint64_t)addr, bp->GetID());
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return bp.get()->GetID();
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}
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//DBLogIf(PD_LOG_BREAKPOINTS, "BreakpointSiteList::%s ( addr = 0x%8.8" PRIx64 " ) => NONE", __FUNCTION__, (uint64_t)addr);
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return LLDB_INVALID_BREAK_ID;
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}
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bool
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BreakpointSiteList::Remove (lldb::break_id_t break_id)
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{
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collection::iterator pos = GetIDIterator(break_id); // Predicate
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if (pos != m_bp_site_list.end())
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{
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m_bp_site_list.erase(pos);
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return true;
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}
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return false;
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}
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bool
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BreakpointSiteList::RemoveByAddress (lldb::addr_t address)
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{
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collection::iterator pos = m_bp_site_list.find(address);
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if (pos != m_bp_site_list.end())
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{
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m_bp_site_list.erase(pos);
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return true;
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}
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return false;
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}
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class BreakpointSiteIDMatches
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{
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public:
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BreakpointSiteIDMatches (lldb::break_id_t break_id) :
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m_break_id(break_id)
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{
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}
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bool operator() (std::pair <lldb::addr_t, BreakpointSiteSP> val_pair) const
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{
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return m_break_id == val_pair.second.get()->GetID();
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}
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private:
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const lldb::break_id_t m_break_id;
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};
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BreakpointSiteList::collection::iterator
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BreakpointSiteList::GetIDIterator (lldb::break_id_t break_id)
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{
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return std::find_if(m_bp_site_list.begin(), m_bp_site_list.end(), // Search full range
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BreakpointSiteIDMatches(break_id)); // Predicate
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}
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BreakpointSiteList::collection::const_iterator
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BreakpointSiteList::GetIDConstIterator (lldb::break_id_t break_id) const
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{
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return std::find_if(m_bp_site_list.begin(), m_bp_site_list.end(), // Search full range
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BreakpointSiteIDMatches(break_id)); // Predicate
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}
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BreakpointSiteSP
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BreakpointSiteList::FindByID (lldb::break_id_t break_id)
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{
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BreakpointSiteSP stop_sp;
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collection::iterator pos = GetIDIterator(break_id);
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if (pos != m_bp_site_list.end())
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stop_sp = pos->second;
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return stop_sp;
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}
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const BreakpointSiteSP
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BreakpointSiteList::FindByID (lldb::break_id_t break_id) const
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{
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BreakpointSiteSP stop_sp;
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collection::const_iterator pos = GetIDConstIterator(break_id);
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if (pos != m_bp_site_list.end())
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stop_sp = pos->second;
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return stop_sp;
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}
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BreakpointSiteSP
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BreakpointSiteList::FindByAddress (lldb::addr_t addr)
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{
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BreakpointSiteSP found_sp;
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collection::iterator iter = m_bp_site_list.find(addr);
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if (iter != m_bp_site_list.end())
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found_sp = iter->second;
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return found_sp;
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}
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bool
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BreakpointSiteList::BreakpointSiteContainsBreakpoint (lldb::break_id_t bp_site_id, lldb::break_id_t bp_id)
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{
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collection::const_iterator pos = GetIDConstIterator(bp_site_id);
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if (pos != m_bp_site_list.end())
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pos->second->IsBreakpointAtThisSite (bp_id);
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return false;
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}
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void
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BreakpointSiteList::Dump (Stream *s) const
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{
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s->Printf("%p: ", this);
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//s->Indent();
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s->Printf("BreakpointSiteList with %u BreakpointSites:\n", (uint32_t)m_bp_site_list.size());
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s->IndentMore();
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collection::const_iterator pos;
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collection::const_iterator end = m_bp_site_list.end();
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for (pos = m_bp_site_list.begin(); pos != end; ++pos)
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pos->second.get()->Dump(s);
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s->IndentLess();
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}
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BreakpointSiteSP
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BreakpointSiteList::GetByIndex (uint32_t i)
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{
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BreakpointSiteSP stop_sp;
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collection::iterator end = m_bp_site_list.end();
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collection::iterator pos;
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uint32_t curr_i = 0;
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for (pos = m_bp_site_list.begin(), curr_i = 0; pos != end; ++pos, ++curr_i)
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{
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if (curr_i == i)
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stop_sp = pos->second;
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}
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return stop_sp;
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}
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const BreakpointSiteSP
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BreakpointSiteList::GetByIndex (uint32_t i) const
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{
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BreakpointSiteSP stop_sp;
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collection::const_iterator end = m_bp_site_list.end();
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collection::const_iterator pos;
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uint32_t curr_i = 0;
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for (pos = m_bp_site_list.begin(), curr_i = 0; pos != end; ++pos, ++curr_i)
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{
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if (curr_i == i)
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stop_sp = pos->second;
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}
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return stop_sp;
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}
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bool
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BreakpointSiteList::FindInRange (lldb::addr_t lower_bound, lldb::addr_t upper_bound, BreakpointSiteList &bp_site_list) const
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{
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if (lower_bound > upper_bound)
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return false;
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collection::const_iterator lower, upper, pos;
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lower = m_bp_site_list.lower_bound(lower_bound);
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if (lower == m_bp_site_list.end()
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|| (*lower).first >= upper_bound)
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return false;
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// This is one tricky bit. The breakpoint might overlap the bottom end of the range. So we grab the
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// breakpoint prior to the lower bound, and check that that + its byte size isn't in our range.
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if (lower != m_bp_site_list.begin())
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{
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collection::const_iterator prev_pos = lower;
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prev_pos--;
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const BreakpointSiteSP &prev_bp = (*prev_pos).second;
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if (prev_bp->GetLoadAddress() + prev_bp->GetByteSize() > lower_bound)
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bp_site_list.Add (prev_bp);
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}
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upper = m_bp_site_list.upper_bound(upper_bound);
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for (pos = lower; pos != upper; pos++)
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{
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bp_site_list.Add ((*pos).second);
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}
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return true;
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}
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void
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BreakpointSiteList::SetEnabledForAll (const bool enabled, const lldb::break_id_t except_id)
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{
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collection::iterator end = m_bp_site_list.end();
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collection::iterator pos;
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for (pos = m_bp_site_list.begin(); pos != end; ++pos)
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{
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if (except_id != LLDB_INVALID_BREAK_ID && except_id != pos->second->GetID())
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pos->second->SetEnabled (enabled);
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else
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pos->second->SetEnabled (!enabled);
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}
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}
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const BreakpointSiteList::collection *
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BreakpointSiteList::GetMap ()
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{
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return &m_bp_site_list;
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}
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