catch2/include/internal/catch_debugger.h

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/*
* Created by Phil on 3/12/2013.
* Copyright 2013 Two Blue Cubes Ltd. All rights reserved.
*
* Distributed under the Boost Software License, Version 1.0. (See accompanying
* file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
*
*/
#ifndef TWOBLUECUBES_CATCH_DEBUGGER_H_INCLUDED
#define TWOBLUECUBES_CATCH_DEBUGGER_H_INCLUDED
#include "catch_platform.h"
#include <string>
namespace Catch{
bool isDebuggerActive();
void writeToDebugConsole( std::string const& text );
}
#ifdef CATCH_PLATFORM_MAC
// The following code snippet based on:
// http://cocoawithlove.com/2008/03/break-into-debugger.html
#if defined(__ppc64__) || defined(__ppc__)
#define CATCH_TRAP() \
__asm__("li r0, 20\nsc\nnop\nli r0, 37\nli r4, 2\nsc\nnop\n" \
: : : "memory","r0","r3","r4" )
#else
#define CATCH_TRAP() __asm__("int $3\n" : : )
#endif
#elif defined(CATCH_PLATFORM_LINUX)
// If we can use inline assembler, do it because this allows us to break
// directly at the location of the failing check instead of breaking inside
// raise() called from it, i.e. one stack frame below.
#if defined(__GNUC__) && (defined(__i386) || defined(__x86_64))
#define CATCH_TRAP() asm volatile ("int $3")
#else // Fall back to the generic way.
#include <signal.h>
#define CATCH_TRAP() raise(SIGTRAP)
#endif
#elif defined(_MSC_VER)
#define CATCH_TRAP() __debugbreak()
#elif defined(__MINGW32__)
extern "C" __declspec(dllimport) void __stdcall DebugBreak();
#define CATCH_TRAP() DebugBreak()
#endif
#ifdef CATCH_TRAP
#define CATCH_BREAK_INTO_DEBUGGER() if( Catch::isDebuggerActive() ) { CATCH_TRAP(); }
#else
#define CATCH_BREAK_INTO_DEBUGGER() Catch::alwaysTrue();
#endif
#endif // TWOBLUECUBES_CATCH_DEBUGGER_H_INCLUDED