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
2026-01-19 09:31:59 +08:00 · 2011-09-21 01:17:13 +00:00
parent 699128e58a
commit 969795f14b
32 changed files with 1155 additions and 206 deletions
--- a/lldb/source/Breakpoint/BreakpointResolverFileRegex.cpp
+++ 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
+{
+
+}
+