From 969795f14bed2c9af7167d0d07b234193c82034c Mon Sep 17 00:00:00 2001
From: Jim Ingham <jingham@apple.com>
Date: Wed, 21 Sep 2011 01:17:13 +0000
Subject: Add a new breakpoint type "break by source regular expression". Fix
 the RegularExpression class so it has a real copy constructor. Fix the
 breakpoint setting with multiple shared libraries so it makes   one
 breakpoint not one per shared library. Add SBFileSpecList, to be used to
 expose the above to the SB interface (not done yet.)

llvm-svn: 140225
---
 .../Breakpoint/BreakpointResolverFileRegex.cpp     | 139 +++++++++++++++++++++
 1 file changed, 139 insertions(+)
 create mode 100644 lldb/source/Breakpoint/BreakpointResolverFileRegex.cpp

(limited to 'lldb/source/Breakpoint/BreakpointResolverFileRegex.cpp')

diff --git a/lldb/source/Breakpoint/BreakpointResolverFileRegex.cpp b/lldb/source/Breakpoint/BreakpointResolverFileRegex.cpp
new file mode 100644
index 00000000000..238c3709354
--- /dev/null
+++ b/lldb/source/Breakpoint/BreakpointResolverFileRegex.cpp
@@ -0,0 +1,139 @@
+//===-- 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/Target/Target.h"
+#include "lldb/lldb-private-log.h"
+
+using namespace lldb;
+using namespace lldb_private;
+
+//----------------------------------------------------------------------
+// BreakpointResolverFileRegex:
+//----------------------------------------------------------------------
+BreakpointResolverFileRegex::BreakpointResolverFileRegex
+(
+    Breakpoint *bkpt,
+    const FileSpec &file_spec,
+    RegularExpression &regex
+) :
+    BreakpointResolver (bkpt, BreakpointResolver::FileLineResolver),
+    m_file_spec (file_spec),
+    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));
+    if (cu_file_spec == m_file_spec
+        || (!m_file_spec.GetDirectory() && cu_file_spec.GetFilename() == m_file_spec.GetFilename()))
+    {
+        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;
+            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, &line_entry);
+                if (start_idx == UINT32_MAX)
+                    break;
+                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%llx for %s:%d didn't pass filter.\n",
+                                     line_start.GetFileAddress(),
+                                     m_file_spec.GetFilename().AsCString("<Unknown>"),
+                                     line_matches[i]);
+                    }
+                }
+                else
+                {
+                    if (log)
+                        log->Printf ("error: Unable to set breakpoint at file address 0x%llx for %s:%d\n",
+                                     line_start.GetFileAddress(),
+                                     m_file_spec.GetFilename().AsCString("<Unknown>"),
+                                     line_matches[i]);
+                }
+
+            }
+        }
+        assert (m_breakpoint != NULL);
+        LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_BREAKPOINTS));
+        
+        
+    }
+    return Searcher::eCallbackReturnContinue;
+}
+
+Searcher::Depth
+BreakpointResolverFileRegex::GetDepth()
+{
+    return Searcher::eDepthCompUnit;
+}
+
+void
+BreakpointResolverFileRegex::GetDescription (Stream *s)
+{
+    s->Printf ("file ='%s', regular expression = \"%s\"", m_file_spec.GetFilename().AsCString(), m_regex.GetText());
+}
+
+void
+BreakpointResolverFileRegex::Dump (Stream *s) const
+{
+
+}
+
-- 
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