added backtrace

cmake/Modules/FindBFD.cmake

@@ -0,0 +1,13 @@
+find_library( DL_LIBRARY 	NAMES dl	PATH /usr/lib /usr/lib64 )
+find_library( BFD_LIBRARY	NAMES bfd	PATH /usr/lib /usr/lib64 )
+
+if ( DL_LIBRARY AND BFD_LIBRARY )
+	set( BFD_FOUND TRUE )
+endif (DL_LIBRARY AND BFD_LIBRARY)
+
+if ( BFD_FOUND )
+
+	message( STATUS "Found libbfd: ${BFD_LIBRARY}")
+
+
+endif ( BFD_FOUND )

libgrive/CMakeLists.txt

@@ -8,11 +8,20 @@ find_package(CURL REQUIRED)
 find_package(EXPAT REQUIRED)
 find_package(CppUnit)
 find_package(Boost REQUIRED)
+find_package(BFD)
 
 IF ( CPPUNIT_FOUND )
 	set( OPT_INCS		${CPPUNIT_INCLUDE_DIR} )
 ENDIF ( CPPUNIT_FOUND )
 
+if ( BFD_FOUND )
+	set( OPT_LIBS	${DL_LIBRARY} ${BFD_LIBRARY} )
+	file( GLOB OPT_SRC
+		src/bfd/*.cc
+	)
+
+endif ( BFD_FOUND )
+
 include_directories(
 	${libgrive_SOURCE_DIR}/src
 	${libgrive_SOURCE_DIR}/test
@@ -45,12 +54,13 @@ file (GLOB LIBGRIVE_SRC
 
 add_definitions( -DVERSION="${GRIVE_VERSION}" -DTEST_DATA="${libgrive_SOURCE_DIR}/test/data/" )
 
-add_library( grive SHARED ${LIBGRIVE_SRC} )
+add_library( grive SHARED ${LIBGRIVE_SRC} ${OPT_SRC} )
 
 target_link_libraries( grive
 	${CURL_LIBRARIES}
 	${JSONC_LIBRARY}
 	${OPENSSL_LIBRARIES}
+	${OPT_LIBS}
 	expat
 )
 

libgrive/src/bfd/Addr.hh

@@ -0,0 +1,25 @@
+/*
+	grive: an GPL program to sync a local directory with Google Drive
+	Copyright (C) 2006  Wan Wai Ho
+
+	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 version 2
+	of the License.
+
+	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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+*/
+
+#pragma once
+
+namespace gr
+{
+	typedef void*   addr_t ;
+}

libgrive/src/bfd/Backtrace.cc

@@ -0,0 +1,72 @@
+/*
+	grive: an GPL program to sync a local directory with Google Drive
+	Copyright (C) 2012  Wan Wai Ho
+
+	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 version 2
+	of the License.
+
+	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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+*/
+
+#include "Backtrace.hh"
+
+#include "SymbolInfo.hh"
+#include "util/CArray.hh"
+
+#include <algorithm>
+#include <cstring>
+#include <sstream>
+
+namespace gr {
+
+Backtrace::Backtrace( std::size_t skip ) :
+	m_count( SymbolInfo::Instance()->Backtrace(m_stack, Count(m_stack) )),
+	m_skip( std::min( skip, m_count ) )
+{
+}
+
+Backtrace::Backtrace( const Backtrace& bt ) :
+	m_count( bt.m_count ),
+	m_skip( bt.m_skip )
+{
+	std::memcpy( m_stack, bt.m_stack, m_count * sizeof(m_stack[0]) ) ;
+}
+
+/*!	\brief	operator<< for printing backtraces
+    \internal
+
+	This function will call SymbolInfo::PrintTrace() to print out a backtrace
+	to the stream. It will use the SymbolInfo::Instance() singleton to get
+	the symbol information.
+	\param	os	The output stream.
+	\param	b	The backtrace information.
+	\sa SymbolInfo::Backtrace(), SymbolInfo::Instance()
+*/
+std::ostream& operator<<( std::ostream& os, const gr::Backtrace& b )
+{
+	// the 1st function in the stack is SymbolInfo::Backtrace()
+	// the 2nd one is the Backtrace() constructor
+	// both are not interesting to user
+	for ( std::size_t i = b.m_skip ; i < b.m_count ; i++ )
+		SymbolInfo::Instance()->PrintTrace( b.m_stack[i], os, i - b.m_skip ) ;
+
+	return os ;
+}
+
+std::string Backtrace::ToString( ) const
+{
+	std::ostringstream oss ;
+	oss << *this ;
+	return oss.str( ) ;
+}
+
+} // end of namespace

libgrive/src/bfd/Backtrace.hh

@@ -0,0 +1,56 @@
+/*
+	grive: an GPL program to sync a local directory with Google Drive
+	Copyright (C) 2012  Wan Wai Ho
+
+	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 version 2
+	of the License.
+
+	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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+*/
+
+#pragma once
+
+#include "Addr.hh"
+
+#include <iosfwd>
+#include <string>
+
+namespace gr {
+
+///	A shortcut to print out backtrace information
+/**	\internal
+	The sole reason for this class to exists is to provide the
+	operator<< overload to allow:
+	
+\code
+std::cout << Backtrace() << std::endl ;
+\endcode
+	
+	\sa SymbolInfo
+*/
+class Backtrace
+{
+public :
+	explicit Backtrace( std::size_t skip = 2 ) ;
+	Backtrace( const Backtrace& bt ) ;
+
+	friend std::ostream& operator<<( std::ostream& os,
+	                                 const gr::Backtrace& bt ) ;
+
+	std::string ToString( ) const ;
+
+private :
+	addr_t		m_stack[100] ;
+	std::size_t	m_count, m_skip ;
+} ;
+
+} // end of namespace

libgrive/src/bfd/Debug.cc

@@ -0,0 +1,71 @@
+/*
+	grive: an GPL program to sync a local directory with Google Drive
+	Copyright (C) 2006  Wan Wai Ho
+
+	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 version 2
+	of the License.
+
+	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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+*/
+
+#include "Debug.hh"
+
+#include <cassert>
+
+#ifdef __GNUC__
+#include <cxxabi.h>
+#endif
+
+#include <cstdlib>
+#include <ostream>
+#include <iomanip>
+
+namespace gr {
+
+std::string Demangle( const char *name )
+{
+#ifdef __GNUC__
+	assert( name != 0 ) ;
+
+	char *cname = abi::__cxa_demangle( name, 0, 0, 0 ) ;
+	std::string result( name ) ;
+	if ( cname != 0 )
+	{
+		result = cname ;
+		std::free( cname ) ;
+	}
+	return result ;
+#else
+    return std::string( ) ;
+#endif
+}
+
+std::ostream& PrintHex( std::ostream& os, const void *buf, std::size_t size )
+{
+	const unsigned char *raw = static_cast<const unsigned char*>( buf ) ;
+
+	for ( std::size_t i = 0 ; i < size ; i++ )
+	{
+		if ( i % 8 == 0 && i > 0 )
+			os << std::endl ;
+
+		if ( i % 8 == 0 )
+			os << std::hex << std::setw(8) << std::setfill('0') << i << " " ;
+
+		os << "0x" << std::hex << std::setw(2) << std::setfill('0') 
+			<< (int)raw[i] << ", " ;
+	}
+	os << std::endl ;
+	return os ;
+}
+
+} // end of namespace

libgrive/src/bfd/Debug.hh

@@ -0,0 +1,32 @@
+/*
+	grive: an GPL program to sync a local directory with Google Drive
+	Copyright (C) 2006  Wan Wai Ho
+
+	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 version 2
+	of the License.
+
+	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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+*/
+
+#pragma once
+
+#include <cstddef>
+#include <iosfwd>
+#include <string>
+
+namespace gr {
+
+std::string Demangle( const char *name ) ;
+
+std::ostream& PrintHex( std::ostream& os, const void *buf, std::size_t size ) ;
+
+} // end of namespace