Move sourcecode into 'senf/' directory

[senf.git] / senf / Utils / Backtrace.cc

diff --git a/senf/Utils/Backtrace.cc b/senf/Utils/Backtrace.cc
new file mode 100644 (file)
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--- /dev/null
+++ b/senf/Utils/Backtrace.cc
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+// $Id$
+//
+// Copyright (C) 2008 
+// Fraunhofer Institute for Open Communication Systems (FOKUS)
+// Competence Center NETwork research (NET), St. Augustin, GERMANY
+//     Stefan Bund <g0dil@berlios.de>
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 2 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the
+// Free Software Foundation, Inc.,
+// 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+/** \file
+    \brief Backtrace non-inline non-template implementation */
+
+#include "Backtrace.hh"
+//#include "Backtrace.ih"
+
+// Custom includes
+#include <execinfo.h>
+#include <cxxabi.h>
+#include <boost/regex.hpp>
+#include "Buffer.hh"
+
+//#include "Backtrace.mpp"
+#define prefix_
+///////////////////////////////cc.p////////////////////////////////////////
+
+prefix_ void senf::formatBacktrace(std::ostream & os, void ** backtrace, unsigned numEntries)
+{
+    char ** symbols (::backtrace_symbols(backtrace, numEntries));
+
+    static boost::regex const backtraceRx 
+        ("(.*)\\((.*)\\+(0x[0-9a-f]+)\\) \\[(0x[0-9a-f]+)\\]");
+    enum { File = 1,
+           Symbol = 2,
+           Offset = 3,
+           Address = 4 };
+
+    for (unsigned i=0; i<numEntries; ++i) {
+        std::string sym (symbols[i]);
+        boost::smatch match;
+        if (regex_match(sym, match, backtraceRx)) {
+            std::string symbol (match[Symbol]);
+            int status (0);
+            char * demangled ( abi::__cxa_demangle(symbol.c_str(), 0, 0, &status) );
+            if (demangled) {
+                symbol = std::string(demangled);
+                free(demangled);
+            }
+            os << "    " << symbol << " + " << match[Offset] 
+               << "\n        in " << match[File] << " [" << match[Address] << "]\n";
+        }
+        else if (sym == "[0xffffe410]")
+            os << "    __kernel_vsyscall [0xffffe410]\n";
+        else if (sym == "[0xffffe420]")
+            os << "    __kernel_sigreturn [0xffffe410]\n";
+        else if (sym == "[0xffffe440]")
+            os << "    __kernel_rt_sigreturn [0xffffe440]\n";
+        else
+            os << "    " << sym << "\n";
+    }
+    free(symbols);
+}
+
+prefix_ void senf::backtrace(std::ostream & os, unsigned numEntries)
+{
+    SENF_SCOPED_BUFFER( void*, entries, numEntries);
+    unsigned n ( ::backtrace(entries, numEntries) );
+    senf::formatBacktrace(os, entries, n);
+}
+
+///////////////////////////////cc.e////////////////////////////////////////
+#undef prefix_
+//#include "Backtrace.mpp"
+
+\f
+// Local Variables:
+// mode: c++
+// fill-column: 100
+// comment-column: 40
+// c-file-style: "senf"
+// indent-tabs-mode: nil
+// ispell-local-dictionary: "american"
+// compile-command: "scons -u test"
+// End: