llvm-project/lldb/source/Breakpoint/BreakpointResolverFileRegex...

135 lines
4.1 KiB
C++

//===-- BreakpointResolverFileRegex.cpp --------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "lldb/Breakpoint/BreakpointResolverFileRegex.h"
// C Includes
// C++ Includes
// Other libraries and framework includes
// Project includes
#include "lldb/Breakpoint/BreakpointLocation.h"
#include "lldb/Core/SourceManager.h"
#include "lldb/Core/Log.h"
#include "lldb/Core/StreamString.h"
#include "lldb/Symbol/CompileUnit.h"
#include "lldb/Target/Target.h"
#include "lldb/lldb-private-log.h"
using namespace lldb;
using namespace lldb_private;
//----------------------------------------------------------------------
// BreakpointResolverFileRegex:
//----------------------------------------------------------------------
BreakpointResolverFileRegex::BreakpointResolverFileRegex
(
Breakpoint *bkpt,
RegularExpression &regex
) :
BreakpointResolver (bkpt, BreakpointResolver::FileLineResolver),
m_regex (regex)
{
}
BreakpointResolverFileRegex::~BreakpointResolverFileRegex ()
{
}
Searcher::CallbackReturn
BreakpointResolverFileRegex::SearchCallback
(
SearchFilter &filter,
SymbolContext &context,
Address *addr,
bool containing
)
{
assert (m_breakpoint != NULL);
if (!context.target_sp)
return eCallbackReturnContinue;
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_BREAKPOINTS));
CompileUnit *cu = context.comp_unit;
FileSpec cu_file_spec = *(static_cast<FileSpec *>(cu));
std::vector<uint32_t> line_matches;
context.target_sp->GetSourceManager().FindLinesMatchingRegex(cu_file_spec, m_regex, 1, UINT32_MAX, line_matches);
uint32_t num_matches = line_matches.size();
for (int i = 0; i < num_matches; i++)
{
uint32_t start_idx = 0;
bool exact = false;
while (1)
{
LineEntry line_entry;
// Cycle through all the line entries that might match this one:
start_idx = cu->FindLineEntry (start_idx, line_matches[i], NULL, exact, &line_entry);
if (start_idx == UINT32_MAX)
break;
exact = true;
start_idx++;
Address line_start = line_entry.range.GetBaseAddress();
if (line_start.IsValid())
{
if (filter.AddressPasses(line_start))
{
BreakpointLocationSP bp_loc_sp (m_breakpoint->AddLocation(line_start));
if (log && bp_loc_sp && !m_breakpoint->IsInternal())
{
StreamString s;
bp_loc_sp->GetDescription (&s, lldb::eDescriptionLevelVerbose);
log->Printf ("Added location: %s\n", s.GetData());
}
}
else if (log)
{
log->Printf ("Breakpoint at file address 0x%" PRIx64 " for %s:%d didn't pass filter.\n",
line_start.GetFileAddress(),
cu_file_spec.GetFilename().AsCString("<Unknown>"),
line_matches[i]);
}
}
else
{
if (log)
log->Printf ("error: Unable to set breakpoint at file address 0x%" PRIx64 " for %s:%d\n",
line_start.GetFileAddress(),
cu_file_spec.GetFilename().AsCString("<Unknown>"),
line_matches[i]);
}
}
}
assert (m_breakpoint != NULL);
return Searcher::eCallbackReturnContinue;
}
Searcher::Depth
BreakpointResolverFileRegex::GetDepth()
{
return Searcher::eDepthCompUnit;
}
void
BreakpointResolverFileRegex::GetDescription (Stream *s)
{
s->Printf ("source regex = \"%s\"", m_regex.GetText());
}
void
BreakpointResolverFileRegex::Dump (Stream *s) const
{
}