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https://github.com/intel/llvm.git
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5160ce5c72
LLDB is crashing when logging is enabled from lldb-perf-clang. This has to do with the global destructor chain as the process and its threads are being torn down. All logging channels now make one and only one instance that is kept in a global pointer which is never freed. This guarantees that logging can correctly continue as the process tears itself down. llvm-svn: 178191
135 lines
4.1 KiB
C++
135 lines
4.1 KiB
C++
//===-- BreakpointResolverFileRegex.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/BreakpointResolverFileRegex.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/Breakpoint/BreakpointLocation.h"
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#include "lldb/Core/SourceManager.h"
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#include "lldb/Core/Log.h"
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#include "lldb/Core/StreamString.h"
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#include "lldb/Symbol/CompileUnit.h"
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#include "lldb/Target/Target.h"
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#include "lldb/lldb-private-log.h"
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using namespace lldb;
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using namespace lldb_private;
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//----------------------------------------------------------------------
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// BreakpointResolverFileRegex:
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//----------------------------------------------------------------------
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BreakpointResolverFileRegex::BreakpointResolverFileRegex
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(
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Breakpoint *bkpt,
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RegularExpression ®ex
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) :
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BreakpointResolver (bkpt, BreakpointResolver::FileLineResolver),
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m_regex (regex)
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{
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}
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BreakpointResolverFileRegex::~BreakpointResolverFileRegex ()
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{
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}
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Searcher::CallbackReturn
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BreakpointResolverFileRegex::SearchCallback
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(
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SearchFilter &filter,
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SymbolContext &context,
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Address *addr,
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bool containing
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)
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{
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assert (m_breakpoint != NULL);
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if (!context.target_sp)
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return eCallbackReturnContinue;
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Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_BREAKPOINTS));
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CompileUnit *cu = context.comp_unit;
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FileSpec cu_file_spec = *(static_cast<FileSpec *>(cu));
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std::vector<uint32_t> line_matches;
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context.target_sp->GetSourceManager().FindLinesMatchingRegex(cu_file_spec, m_regex, 1, UINT32_MAX, line_matches);
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uint32_t num_matches = line_matches.size();
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for (int i = 0; i < num_matches; i++)
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{
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uint32_t start_idx = 0;
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bool exact = false;
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while (1)
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{
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LineEntry line_entry;
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// Cycle through all the line entries that might match this one:
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start_idx = cu->FindLineEntry (start_idx, line_matches[i], NULL, exact, &line_entry);
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if (start_idx == UINT32_MAX)
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break;
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exact = true;
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start_idx++;
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Address line_start = line_entry.range.GetBaseAddress();
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if (line_start.IsValid())
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{
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if (filter.AddressPasses(line_start))
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{
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BreakpointLocationSP bp_loc_sp (m_breakpoint->AddLocation(line_start));
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if (log && bp_loc_sp && !m_breakpoint->IsInternal())
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{
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StreamString s;
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bp_loc_sp->GetDescription (&s, lldb::eDescriptionLevelVerbose);
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log->Printf ("Added location: %s\n", s.GetData());
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}
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}
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else if (log)
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{
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log->Printf ("Breakpoint at file address 0x%" PRIx64 " for %s:%d didn't pass filter.\n",
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line_start.GetFileAddress(),
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cu_file_spec.GetFilename().AsCString("<Unknown>"),
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line_matches[i]);
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}
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}
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else
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{
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if (log)
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log->Printf ("error: Unable to set breakpoint at file address 0x%" PRIx64 " for %s:%d\n",
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line_start.GetFileAddress(),
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cu_file_spec.GetFilename().AsCString("<Unknown>"),
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line_matches[i]);
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}
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}
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}
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assert (m_breakpoint != NULL);
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return Searcher::eCallbackReturnContinue;
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}
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Searcher::Depth
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BreakpointResolverFileRegex::GetDepth()
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{
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return Searcher::eDepthCompUnit;
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}
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void
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BreakpointResolverFileRegex::GetDescription (Stream *s)
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{
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s->Printf ("source regex = \"%s\"", m_regex.GetText());
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}
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void
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BreakpointResolverFileRegex::Dump (Stream *s) const
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{
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}
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