1// (C) Copyright Gennadiy Rozental 2001.
2// (C) Copyright Beman Dawes and Ullrich Koethe 1995-2001.
3// Use, modification, and distribution are subject to the
4// Boost Software License, Version 1.0. (See accompanying file
5// http://www.boost.org/LICENSE_1_0.txt)
6
7// See http://www.boost.org/libs/test for the library home page.
8//
9// File : $RCSfile$
10//
11// Version : $Revision$
12//
13// Description : provides execution monitor implementation for all supported
14// configurations, including Microsoft structured exception based, unix signals
15// based and special workarounds for borland
16//
17// Note that when testing requirements or user wishes preclude use of this
18// file as a separate compilation unit, it may be included as a header file.
19//
20// Header dependencies are deliberately restricted to reduce coupling to other
21// boost libraries.
22// ***************************************************************************
23
24#ifndef BOOST_TEST_EXECUTION_MONITOR_IPP_012205GER
25#define BOOST_TEST_EXECUTION_MONITOR_IPP_012205GER
26
27// Boost.Test
28#include <boost/test/detail/config.hpp>
29#include <boost/test/detail/workaround.hpp>
30#include <boost/test/detail/throw_exception.hpp>
31#include <boost/test/execution_monitor.hpp>
32#include <boost/test/debug.hpp>
33
34// Boost
35#include <boost/cstdlib.hpp> // for exit codes
36#include <boost/config.hpp> // for workarounds
37#include <boost/core/ignore_unused.hpp> // for ignore_unused
38#ifndef BOOST_NO_EXCEPTION
39#include <boost/exception/get_error_info.hpp> // for get_error_info
40#include <boost/exception/current_exception_cast.hpp> // for current_exception_cast
41#endif
42
43// STL
44#include <string> // for std::string
45#include <new> // for std::bad_alloc
46#include <typeinfo> // for std::bad_cast, std::bad_typeid
47#include <exception> // for std::exception, std::bad_exception
48#include <stdexcept> // for std exception hierarchy
49#include <cstring> // for C string API
50#include <cassert> // for assert
51#include <cstddef> // for NULL
52#include <cstdio> // for vsnprintf
53#include <cstdarg> // for varargs
54
55#include <iostream> // for varargs
56
57#ifdef BOOST_NO_STDC_NAMESPACE
58namespace std { using ::strerror; using ::strlen; using ::strncat; }
59#endif
60
61// to use vsnprintf
62#if defined(__SUNPRO_CC) || defined(__SunOS)
63# include <stdio.h>
64# include <stdarg.h>
65using std::va_list;
66#endif
67
68// to use vsnprintf
69#if defined(__QNXNTO__)
70# include <stdio.h>
71#endif
72
73#ifdef BOOST_SEH_BASED_SIGNAL_HANDLING
74# include <windows.h>
75
76# if defined(__MWERKS__) || (defined(_MSC_VER) && !defined(UNDER_CE))
77# include <eh.h>
78# endif
79
80# if defined(__BORLANDC__) && __BORLANDC__ >= 0x560 || defined(__MWERKS__)
81# include <stdint.h>
82# endif
83
84# if defined(__BORLANDC__) && __BORLANDC__ < 0x560
85 typedef unsigned uintptr_t;
86# endif
87
88# if defined(UNDER_CE) && BOOST_WORKAROUND(_MSC_VER, < 1500 )
89 typedef void* uintptr_t;
90# elif defined(UNDER_CE)
91# include <crtdefs.h>
92# endif
93
94# if !defined(NDEBUG) && defined(_MSC_VER) && !defined(UNDER_CE)
95# include <crtdbg.h>
96# define BOOST_TEST_CRT_HOOK_TYPE _CRT_REPORT_HOOK
97# define BOOST_TEST_CRT_ASSERT _CRT_ASSERT
98# define BOOST_TEST_CRT_ERROR _CRT_ERROR
99# define BOOST_TEST_CRT_SET_HOOK(H) _CrtSetReportHook(H)
100# else
101# define BOOST_TEST_CRT_HOOK_TYPE void*
102# define BOOST_TEST_CRT_ASSERT 2
103# define BOOST_TEST_CRT_ERROR 1
104# define BOOST_TEST_CRT_SET_HOOK(H) (void*)(H)
105# endif
106
107# if (!BOOST_WORKAROUND(_MSC_VER, >= 1400 ) && \
108 !defined(BOOST_COMO)) || defined(UNDER_CE)
109
110typedef void* _invalid_parameter_handler;
111
112inline _invalid_parameter_handler
113_set_invalid_parameter_handler( _invalid_parameter_handler arg )
114{
115 return arg;
116}
117
118# endif
119
120# if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x0564)) || defined(UNDER_CE)
121
122namespace { void _set_se_translator( void* ) {} }
123
124# endif
125
126#elif defined(BOOST_HAS_SIGACTION)
127
128# define BOOST_SIGACTION_BASED_SIGNAL_HANDLING
129
130# include <unistd.h>
131# include <signal.h>
132# include <setjmp.h>
133
134# if defined(__FreeBSD__)
135
136# include <osreldate.h>
137
138# ifndef SIGPOLL
139# define SIGPOLL SIGIO
140# endif
141
142# if (__FreeBSD_version < 70100)
143
144# define ILL_ILLADR 0 // ILL_RESAD_FAULT
145# define ILL_PRVOPC ILL_PRIVIN_FAULT
146# define ILL_ILLOPN 2 // ILL_RESOP_FAULT
147# define ILL_COPROC ILL_FPOP_FAULT
148
149# define BOOST_TEST_LIMITED_SIGNAL_DETAILS
150
151# endif
152# endif
153
154# if defined(__ANDROID__)
155# include <android/api-level.h>
156# endif
157
158# if !defined(__CYGWIN__) && !defined(__QNXNTO__) && !defined(__bgq__) && \
159 (!defined(__ANDROID__) || __ANDROID_API__ >= 8)
160# define BOOST_TEST_USE_ALT_STACK
161# endif
162
163# if defined(SIGPOLL) && !defined(__CYGWIN__) && \
164 !(defined(macintosh) || defined(__APPLE__) || defined(__APPLE_CC__)) && \
165 !defined(__NetBSD__) && \
166 !defined(__QNXNTO__)
167# define BOOST_TEST_CATCH_SIGPOLL
168# endif
169
170# ifdef BOOST_TEST_USE_ALT_STACK
171# define BOOST_TEST_ALT_STACK_SIZE SIGSTKSZ
172# endif
173
174
175#else
176
177# define BOOST_NO_SIGNAL_HANDLING
178
179#endif
180
181#ifndef UNDER_CE
182#include <errno.h>
183#endif
184
185#if defined(__GNUC__) && !defined(BOOST_NO_TYPEID)
186# include <cxxabi.h>
187#endif
188
189#include <boost/test/detail/suppress_warnings.hpp>
190
191//____________________________________________________________________________//
192
193namespace boost {
194
195// ************************************************************************** //
196// ************** throw_exception ************** //
197// ************************************************************************** //
198
199#ifdef BOOST_NO_EXCEPTION
200void throw_exception( std::exception const & e ) { abort(); }
201#endif
202
203// ************************************************************************** //
204// ************** report_error ************** //
205// ************************************************************************** //
206
207namespace detail {
208
209#ifdef __BORLANDC__
210# define BOOST_TEST_VSNPRINTF( a1, a2, a3, a4 ) std::vsnprintf( (a1), (a2), (a3), (a4) )
211#elif BOOST_WORKAROUND(_MSC_VER, <= 1310) || \
212 BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3000)) || \
213 defined(UNDER_CE)
214# define BOOST_TEST_VSNPRINTF( a1, a2, a3, a4 ) _vsnprintf( (a1), (a2), (a3), (a4) )
215#else
216# define BOOST_TEST_VSNPRINTF( a1, a2, a3, a4 ) vsnprintf( (a1), (a2), (a3), (a4) )
217#endif
218
219#ifndef BOOST_NO_EXCEPTION
220
221template <typename ErrorInfo>
222typename ErrorInfo::value_type
223extract( boost::exception const* ex )
224{
225 if( !ex )
226 return 0;
227
228 typename ErrorInfo::value_type const * val = boost::get_error_info<ErrorInfo>( *ex );
229
230 return val ? *val : 0;
231}
232
233//____________________________________________________________________________//
234
235static void
236report_error( execution_exception::error_code ec, boost::exception const* be, char const* format, va_list* args )
237{
238 static const int REPORT_ERROR_BUFFER_SIZE = 4096;
239 static char buf[REPORT_ERROR_BUFFER_SIZE];
240
241 BOOST_TEST_VSNPRINTF( buf, sizeof(buf)-1, format, *args );
242 buf[sizeof(buf)-1] = 0;
243
244 va_end( *args );
245
246 BOOST_TEST_I_THROW(execution_exception( ec, buf, execution_exception::location( extract<throw_file>( be ),
247 (size_t)extract<throw_line>( be ),
248 extract<throw_function>( be ) ) ));
249}
250
251//____________________________________________________________________________//
252
253static void
254report_error( execution_exception::error_code ec, boost::exception const* be, char const* format, ... )
255{
256 va_list args;
257 va_start( args, format );
258
259 report_error( ec, be, format, args: &args );
260}
261
262#endif
263
264//____________________________________________________________________________//
265
266static void
267report_error( execution_exception::error_code ec, char const* format, ... )
268{
269 va_list args;
270 va_start( args, format );
271
272 report_error( ec, be: 0, format, args: &args );
273}
274
275//____________________________________________________________________________//
276
277template<typename Tr,typename Functor>
278inline int
279do_invoke( Tr const& tr, Functor const& F )
280{
281 return tr ? (*tr)( F ) : F();
282}
283
284//____________________________________________________________________________//
285
286struct fpe_except_guard {
287 explicit fpe_except_guard( unsigned detect_fpe )
288 : m_detect_fpe( detect_fpe )
289 {
290 // prepare fp exceptions control
291 m_previosly_enabled = fpe::disable( mask: fpe::BOOST_FPE_ALL );
292 if( m_previosly_enabled != fpe::BOOST_FPE_INV && detect_fpe != fpe::BOOST_FPE_OFF )
293 fpe::enable( mask: detect_fpe );
294 }
295 ~fpe_except_guard()
296 {
297 if( m_detect_fpe != fpe::BOOST_FPE_OFF )
298 fpe::disable( mask: m_detect_fpe );
299 if( m_previosly_enabled != fpe::BOOST_FPE_INV )
300 fpe::enable( mask: m_previosly_enabled );
301 }
302
303 unsigned m_detect_fpe;
304 unsigned m_previosly_enabled;
305};
306
307#ifndef BOOST_NO_TYPEID
308
309// ************************************************************************** //
310// ************** typeid_name ************** //
311// ************************************************************************** //
312
313template<typename T>
314char const*
315typeid_name( T const& t )
316{
317#ifdef __GNUC__
318 int status;
319
320 return abi::__cxa_demangle( mangled_name: typeid(t).name(), output_buffer: 0, length: 0, status: &status );
321#else
322 return typeid(t).name();
323#endif
324}
325#endif
326
327} // namespace detail
328
329#if defined(BOOST_SIGACTION_BASED_SIGNAL_HANDLING)
330
331// ************************************************************************** //
332// ************** Sigaction based signal handling ************** //
333// ************************************************************************** //
334
335namespace detail {
336
337// ************************************************************************** //
338// ************** boost::detail::system_signal_exception ************** //
339// ************************************************************************** //
340
341class system_signal_exception {
342public:
343 // Constructor
344 system_signal_exception()
345 : m_sig_info( 0 )
346 , m_context( 0 )
347 {}
348
349 // Access methods
350 void operator()( siginfo_t* i, void* c )
351 {
352 m_sig_info = i;
353 m_context = c;
354 }
355 void report() const;
356
357private:
358 // Data members
359 siginfo_t* m_sig_info; // system signal detailed info
360 void* m_context; // signal context
361};
362
363//____________________________________________________________________________//
364
365void
366system_signal_exception::report() const
367{
368 if( !m_sig_info )
369 return; // no error actually occur?
370
371 switch( m_sig_info->si_code ) {
372 case SI_USER:
373 report_error( ec: execution_exception::system_error,
374 format: "signal: generated by kill() (or family); uid=%d; pid=%d",
375 (int)m_sig_info->si_uid, (int)m_sig_info->si_pid );
376 break;
377 case SI_QUEUE:
378 report_error( ec: execution_exception::system_error,
379 format: "signal: sent by sigqueue()" );
380 break;
381 case SI_TIMER:
382 report_error( ec: execution_exception::system_error,
383 format: "signal: the expiration of a timer set by timer_settimer()" );
384 break;
385 case SI_ASYNCIO:
386 report_error( ec: execution_exception::system_error,
387 format: "signal: generated by the completion of an asynchronous I/O request" );
388 break;
389 case SI_MESGQ:
390 report_error( ec: execution_exception::system_error,
391 format: "signal: generated by the the arrival of a message on an empty message queue" );
392 break;
393 default:
394 break;
395 }
396
397 switch( m_sig_info->si_signo ) {
398 case SIGILL:
399 switch( m_sig_info->si_code ) {
400#ifndef BOOST_TEST_LIMITED_SIGNAL_DETAILS
401 case ILL_ILLOPC:
402 report_error( ec: execution_exception::system_fatal_error,
403 format: "signal: illegal opcode; address of failing instruction: 0x%08lx",
404 m_sig_info->si_addr );
405 break;
406 case ILL_ILLTRP:
407 report_error( ec: execution_exception::system_fatal_error,
408 format: "signal: illegal trap; address of failing instruction: 0x%08lx",
409 m_sig_info->si_addr );
410 break;
411 case ILL_PRVREG:
412 report_error( ec: execution_exception::system_fatal_error,
413 format: "signal: privileged register; address of failing instruction: 0x%08lx",
414 m_sig_info->si_addr );
415 break;
416 case ILL_BADSTK:
417 report_error( ec: execution_exception::system_fatal_error,
418 format: "signal: internal stack error; address of failing instruction: 0x%08lx",
419 m_sig_info->si_addr );
420 break;
421#endif
422 case ILL_ILLOPN:
423 report_error( ec: execution_exception::system_fatal_error,
424 format: "signal: illegal operand; address of failing instruction: 0x%08lx",
425 m_sig_info->si_addr );
426 break;
427 case ILL_ILLADR:
428 report_error( ec: execution_exception::system_fatal_error,
429 format: "signal: illegal addressing mode; address of failing instruction: 0x%08lx",
430 m_sig_info->si_addr );
431 break;
432 case ILL_PRVOPC:
433 report_error( ec: execution_exception::system_fatal_error,
434 format: "signal: privileged opcode; address of failing instruction: 0x%08lx",
435 m_sig_info->si_addr );
436 break;
437 case ILL_COPROC:
438 report_error( ec: execution_exception::system_fatal_error,
439 format: "signal: co-processor error; address of failing instruction: 0x%08lx",
440 m_sig_info->si_addr );
441 break;
442 default:
443 report_error( ec: execution_exception::system_fatal_error,
444 format: "signal: SIGILL, si_code: %d (illegal instruction; address of failing instruction: 0x%08lx)",
445 m_sig_info->si_addr, m_sig_info->si_code );
446 break;
447 }
448 break;
449
450 case SIGFPE:
451 switch( m_sig_info->si_code ) {
452 case FPE_INTDIV:
453 report_error( ec: execution_exception::system_error,
454 format: "signal: integer divide by zero; address of failing instruction: 0x%08lx",
455 m_sig_info->si_addr );
456 break;
457 case FPE_INTOVF:
458 report_error( ec: execution_exception::system_error,
459 format: "signal: integer overflow; address of failing instruction: 0x%08lx",
460 m_sig_info->si_addr );
461 break;
462 case FPE_FLTDIV:
463 report_error( ec: execution_exception::system_error,
464 format: "signal: floating point divide by zero; address of failing instruction: 0x%08lx",
465 m_sig_info->si_addr );
466 break;
467 case FPE_FLTOVF:
468 report_error( ec: execution_exception::system_error,
469 format: "signal: floating point overflow; address of failing instruction: 0x%08lx",
470 m_sig_info->si_addr );
471 break;
472 case FPE_FLTUND:
473 report_error( ec: execution_exception::system_error,
474 format: "signal: floating point underflow; address of failing instruction: 0x%08lx",
475 m_sig_info->si_addr );
476 break;
477 case FPE_FLTRES:
478 report_error( ec: execution_exception::system_error,
479 format: "signal: floating point inexact result; address of failing instruction: 0x%08lx",
480 m_sig_info->si_addr );
481 break;
482 case FPE_FLTINV:
483 report_error( ec: execution_exception::system_error,
484 format: "signal: invalid floating point operation; address of failing instruction: 0x%08lx",
485 m_sig_info->si_addr );
486 break;
487 case FPE_FLTSUB:
488 report_error( ec: execution_exception::system_error,
489 format: "signal: subscript out of range; address of failing instruction: 0x%08lx",
490 m_sig_info->si_addr );
491 break;
492 default:
493 report_error( ec: execution_exception::system_error,
494 format: "signal: SIGFPE, si_code: %d (errnoneous arithmetic operations; address of failing instruction: 0x%08lx)",
495 m_sig_info->si_addr, m_sig_info->si_code );
496 break;
497 }
498 break;
499
500 case SIGSEGV:
501 switch( m_sig_info->si_code ) {
502#ifndef BOOST_TEST_LIMITED_SIGNAL_DETAILS
503 case SEGV_MAPERR:
504 report_error( ec: execution_exception::system_fatal_error,
505 format: "memory access violation at address: 0x%08lx: no mapping at fault address",
506 m_sig_info->si_addr );
507 break;
508 case SEGV_ACCERR:
509 report_error( ec: execution_exception::system_fatal_error,
510 format: "memory access violation at address: 0x%08lx: invalid permissions",
511 m_sig_info->si_addr );
512 break;
513#endif
514 default:
515 report_error( ec: execution_exception::system_fatal_error,
516 format: "signal: SIGSEGV, si_code: %d (memory access violation at address: 0x%08lx)",
517 m_sig_info->si_addr, m_sig_info->si_code );
518 break;
519 }
520 break;
521
522 case SIGBUS:
523 switch( m_sig_info->si_code ) {
524#ifndef BOOST_TEST_LIMITED_SIGNAL_DETAILS
525 case BUS_ADRALN:
526 report_error( ec: execution_exception::system_fatal_error,
527 format: "memory access violation at address: 0x%08lx: invalid address alignment",
528 m_sig_info->si_addr );
529 break;
530 case BUS_ADRERR:
531 report_error( ec: execution_exception::system_fatal_error,
532 format: "memory access violation at address: 0x%08lx: non-existent physical address",
533 m_sig_info->si_addr );
534 break;
535 case BUS_OBJERR:
536 report_error( ec: execution_exception::system_fatal_error,
537 format: "memory access violation at address: 0x%08lx: object specific hardware error",
538 m_sig_info->si_addr );
539 break;
540#endif
541 default:
542 report_error( ec: execution_exception::system_fatal_error,
543 format: "signal: SIGSEGV, si_code: %d (memory access violation at address: 0x%08lx)",
544 m_sig_info->si_addr, m_sig_info->si_code );
545 break;
546 }
547 break;
548
549#if defined(BOOST_TEST_CATCH_SIGPOLL)
550
551 case SIGPOLL:
552 switch( m_sig_info->si_code ) {
553#ifndef BOOST_TEST_LIMITED_SIGNAL_DETAILS
554 case POLL_IN:
555 report_error( ec: execution_exception::system_error,
556 format: "data input available; band event %d",
557 (int)m_sig_info->si_band );
558 break;
559 case POLL_OUT:
560 report_error( ec: execution_exception::system_error,
561 format: "output buffers available; band event %d",
562 (int)m_sig_info->si_band );
563 break;
564 case POLL_MSG:
565 report_error( ec: execution_exception::system_error,
566 format: "input message available; band event %d",
567 (int)m_sig_info->si_band );
568 break;
569 case POLL_ERR:
570 report_error( ec: execution_exception::system_error,
571 format: "i/o error; band event %d",
572 (int)m_sig_info->si_band );
573 break;
574 case POLL_PRI:
575 report_error( ec: execution_exception::system_error,
576 format: "high priority input available; band event %d",
577 (int)m_sig_info->si_band );
578 break;
579#if defined(POLL_ERR) && defined(POLL_HUP) && (POLL_ERR - POLL_HUP)
580 case POLL_HUP:
581 report_error( execution_exception::system_error,
582 "device disconnected; band event %d",
583 (int)m_sig_info->si_band );
584 break;
585#endif
586#endif
587 default:
588 report_error( ec: execution_exception::system_error,
589 format: "signal: SIGPOLL, si_code: %d (asynchronous I/O event occurred; band event %d)",
590 (int)m_sig_info->si_band, m_sig_info->si_code );
591 break;
592 }
593 break;
594
595#endif
596
597 case SIGABRT:
598 report_error( ec: execution_exception::system_error,
599 format: "signal: SIGABRT (application abort requested)" );
600 break;
601
602 case SIGALRM:
603 report_error( ec: execution_exception::timeout_error,
604 format: "signal: SIGALRM (timeout while executing function)" );
605 break;
606
607 default:
608 report_error( ec: execution_exception::system_error,
609 format: "unrecognized signal %d", m_sig_info->si_signo );
610 }
611}
612
613//____________________________________________________________________________//
614
615// ************************************************************************** //
616// ************** boost::detail::signal_action ************** //
617// ************************************************************************** //
618
619// Forward declaration
620extern "C" {
621static void boost_execution_monitor_jumping_signal_handler( int sig, siginfo_t* info, void* context );
622static void boost_execution_monitor_attaching_signal_handler( int sig, siginfo_t* info, void* context );
623}
624
625class signal_action {
626 typedef struct sigaction* sigaction_ptr;
627public:
628 //Constructor
629 signal_action();
630 signal_action( int sig, bool install, bool attach_dbg, char* alt_stack );
631 ~signal_action();
632
633private:
634 // Data members
635 int m_sig;
636 bool m_installed;
637 struct sigaction m_new_action;
638 struct sigaction m_old_action;
639};
640
641//____________________________________________________________________________//
642
643signal_action::signal_action()
644: m_installed( false )
645{}
646
647//____________________________________________________________________________//
648
649signal_action::signal_action( int sig, bool install, bool attach_dbg, char* alt_stack )
650: m_sig( sig )
651, m_installed( install )
652{
653 if( !install )
654 return;
655
656 std::memset( s: &m_new_action, c: 0, n: sizeof(struct sigaction) );
657
658 BOOST_TEST_SYS_ASSERT( ::sigaction( m_sig , sigaction_ptr(), &m_new_action ) != -1 );
659
660 if( m_new_action.sa_sigaction || m_new_action.sa_handler ) {
661 m_installed = false;
662 return;
663 }
664
665 m_new_action.sa_flags |= SA_SIGINFO;
666 m_new_action.sa_sigaction = attach_dbg ? &boost_execution_monitor_attaching_signal_handler
667 : &boost_execution_monitor_jumping_signal_handler;
668 BOOST_TEST_SYS_ASSERT( sigemptyset( &m_new_action.sa_mask ) != -1 );
669
670#ifdef BOOST_TEST_USE_ALT_STACK
671 if( alt_stack )
672 m_new_action.sa_flags |= SA_ONSTACK;
673#endif
674
675 BOOST_TEST_SYS_ASSERT( ::sigaction( m_sig, &m_new_action, &m_old_action ) != -1 );
676}
677
678//____________________________________________________________________________//
679
680signal_action::~signal_action()
681{
682 if( m_installed )
683 ::sigaction( sig: m_sig, act: &m_old_action , oact: sigaction_ptr() );
684}
685
686//____________________________________________________________________________//
687
688// ************************************************************************** //
689// ************** boost::detail::signal_handler ************** //
690// ************************************************************************** //
691
692class signal_handler {
693public:
694 // Constructor
695 explicit signal_handler( bool catch_system_errors, bool detect_fpe, unsigned timeout, bool attach_dbg, char* alt_stack );
696
697 // Destructor
698 ~signal_handler();
699
700 // access methods
701 static sigjmp_buf& jump_buffer()
702 {
703 assert( !!s_active_handler );
704
705 return s_active_handler->m_sigjmp_buf;
706 }
707
708 static system_signal_exception& sys_sig()
709 {
710 assert( !!s_active_handler );
711
712 return s_active_handler->m_sys_sig;
713 }
714
715private:
716 // Data members
717 signal_handler* m_prev_handler;
718 unsigned m_timeout;
719
720 // Note: We intentionality do not catch SIGCHLD. Users have to deal with it themselves
721 signal_action m_ILL_action;
722 signal_action m_FPE_action;
723 signal_action m_SEGV_action;
724 signal_action m_BUS_action;
725 signal_action m_CHLD_action;
726 signal_action m_POLL_action;
727 signal_action m_ABRT_action;
728 signal_action m_ALRM_action;
729
730 sigjmp_buf m_sigjmp_buf;
731 system_signal_exception m_sys_sig;
732
733 static signal_handler* s_active_handler;
734};
735
736// !! need to be placed in thread specific storage
737typedef signal_handler* signal_handler_ptr;
738signal_handler* signal_handler::s_active_handler = signal_handler_ptr();
739
740//____________________________________________________________________________//
741
742signal_handler::signal_handler( bool catch_system_errors, bool detect_fpe, unsigned timeout, bool attach_dbg, char* alt_stack )
743: m_prev_handler( s_active_handler )
744, m_timeout( timeout )
745, m_ILL_action ( SIGILL , catch_system_errors, attach_dbg, alt_stack )
746, m_FPE_action ( SIGFPE , detect_fpe , attach_dbg, alt_stack )
747, m_SEGV_action( SIGSEGV, catch_system_errors, attach_dbg, alt_stack )
748, m_BUS_action ( SIGBUS , catch_system_errors, attach_dbg, alt_stack )
749#ifdef BOOST_TEST_CATCH_SIGPOLL
750, m_POLL_action( SIGPOLL, catch_system_errors, attach_dbg, alt_stack )
751#endif
752, m_ABRT_action( SIGABRT, catch_system_errors, attach_dbg, alt_stack )
753, m_ALRM_action( SIGALRM, timeout > 0 , attach_dbg, alt_stack )
754{
755 s_active_handler = this;
756
757 if( m_timeout > 0 ) {
758 ::alarm( seconds: 0 );
759 ::alarm( seconds: timeout );
760 }
761
762#ifdef BOOST_TEST_USE_ALT_STACK
763 if( alt_stack ) {
764 stack_t sigstk;
765 std::memset( s: &sigstk, c: 0, n: sizeof(stack_t) );
766
767 BOOST_TEST_SYS_ASSERT( ::sigaltstack( 0, &sigstk ) != -1 );
768
769 if( sigstk.ss_flags & SS_DISABLE ) {
770 sigstk.ss_sp = alt_stack;
771 sigstk.ss_size = BOOST_TEST_ALT_STACK_SIZE;
772 sigstk.ss_flags = 0;
773 BOOST_TEST_SYS_ASSERT( ::sigaltstack( &sigstk, 0 ) != -1 );
774 }
775 }
776#endif
777}
778
779//____________________________________________________________________________//
780
781signal_handler::~signal_handler()
782{
783 assert( s_active_handler == this );
784
785 if( m_timeout > 0 )
786 ::alarm( seconds: 0 );
787
788#ifdef BOOST_TEST_USE_ALT_STACK
789#ifdef __GNUC__
790 // We shouldn't need to explicitly initialize all the members here,
791 // but gcc warns if we don't, so add initializers for each of the
792 // members specified in the POSIX std:
793 stack_t sigstk = { .ss_sp: 0, .ss_flags: 0, .ss_size: 0 };
794#else
795 stack_t sigstk = { };
796#endif
797
798 sigstk.ss_size = MINSIGSTKSZ;
799 sigstk.ss_flags = SS_DISABLE;
800 if( ::sigaltstack( ss: &sigstk, oss: 0 ) == -1 ) {
801 int error_n = errno;
802 std::cerr << "******** errors disabling the alternate stack:" << std::endl
803 << "\t#error:" << error_n << std::endl
804 << "\t" << std::strerror( errnum: error_n ) << std::endl;
805 }
806#endif
807
808 s_active_handler = m_prev_handler;
809}
810
811//____________________________________________________________________________//
812
813// ************************************************************************** //
814// ************** execution_monitor_signal_handler ************** //
815// ************************************************************************** //
816
817extern "C" {
818
819static void boost_execution_monitor_jumping_signal_handler( int sig, siginfo_t* info, void* context )
820{
821 signal_handler::sys_sig()( info, context );
822
823 siglongjmp( env: signal_handler::jump_buffer(), val: sig );
824}
825
826//____________________________________________________________________________//
827
828static void boost_execution_monitor_attaching_signal_handler( int sig, siginfo_t* info, void* context )
829{
830 if( !debug::attach_debugger( break_or_continue: false ) )
831 boost_execution_monitor_jumping_signal_handler( sig, info, context );
832
833 // debugger attached; it will handle the signal
834 BOOST_TEST_SYS_ASSERT( ::signal( sig, SIG_DFL ) != SIG_ERR );
835}
836
837//____________________________________________________________________________//
838
839}
840
841} // namespace detail
842
843// ************************************************************************** //
844// ************** execution_monitor::catch_signals ************** //
845// ************************************************************************** //
846
847int
848execution_monitor::catch_signals( boost::function<int ()> const& F )
849{
850 using namespace detail;
851
852#if defined(__CYGWIN__)
853 p_catch_system_errors.value = false;
854#endif
855
856#ifdef BOOST_TEST_USE_ALT_STACK
857 if( !!p_use_alt_stack && !m_alt_stack )
858 m_alt_stack.reset( p: new char[BOOST_TEST_ALT_STACK_SIZE] );
859#else
860 p_use_alt_stack.value = false;
861#endif
862
863 signal_handler local_signal_handler( p_catch_system_errors,
864 p_catch_system_errors || (p_detect_fp_exceptions != fpe::BOOST_FPE_OFF),
865 p_timeout,
866 p_auto_start_dbg,
867 !p_use_alt_stack ? 0 : m_alt_stack.get() );
868
869 if( !sigsetjmp( signal_handler::jump_buffer(), 1 ) )
870 return detail::do_invoke( tr: m_custom_translators , F );
871 else
872 BOOST_TEST_I_THROW( local_signal_handler.sys_sig() );
873}
874
875//____________________________________________________________________________//
876
877#elif defined(BOOST_SEH_BASED_SIGNAL_HANDLING)
878
879// ************************************************************************** //
880// ************** Microsoft structured exception handling ************** //
881// ************************************************************************** //
882
883#if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x0564))
884namespace { void _set_se_translator( void* ) {} }
885#endif
886
887namespace detail {
888
889// ************************************************************************** //
890// ************** boost::detail::system_signal_exception ************** //
891// ************************************************************************** //
892
893class system_signal_exception {
894public:
895 // Constructor
896 explicit system_signal_exception( execution_monitor* em )
897 : m_em( em )
898 , m_se_id( 0 )
899 , m_fault_address( 0 )
900 , m_dir( false )
901 {}
902
903 void report() const;
904 int operator()( unsigned id, _EXCEPTION_POINTERS* exps );
905
906private:
907 // Data members
908 execution_monitor* m_em;
909
910 unsigned m_se_id;
911 void* m_fault_address;
912 bool m_dir;
913};
914
915//____________________________________________________________________________//
916
917#if BOOST_WORKAROUND( BOOST_MSVC, <= 1310)
918static void
919seh_catch_preventer( unsigned /* id */, _EXCEPTION_POINTERS* /* exps */ )
920{
921 throw;
922}
923#endif
924
925//____________________________________________________________________________//
926
927int
928system_signal_exception::operator()( unsigned id, _EXCEPTION_POINTERS* exps )
929{
930 const unsigned MSFT_CPP_EXCEPT = 0xE06d7363; // EMSC
931
932 // C++ exception - allow to go through
933 if( id == MSFT_CPP_EXCEPT )
934 return EXCEPTION_CONTINUE_SEARCH;
935
936 // FPE detection is enabled, while system exception detection is not - check if this is actually FPE
937 if( !m_em->p_catch_system_errors ) {
938 if( !m_em->p_detect_fp_exceptions )
939 return EXCEPTION_CONTINUE_SEARCH;
940
941 switch( id ) {
942 case EXCEPTION_FLT_DIVIDE_BY_ZERO:
943 case EXCEPTION_FLT_STACK_CHECK:
944 case EXCEPTION_FLT_DENORMAL_OPERAND:
945 case EXCEPTION_FLT_INEXACT_RESULT:
946 case EXCEPTION_FLT_OVERFLOW:
947 case EXCEPTION_FLT_UNDERFLOW:
948 case EXCEPTION_FLT_INVALID_OPERATION:
949 case STATUS_FLOAT_MULTIPLE_FAULTS:
950 case STATUS_FLOAT_MULTIPLE_TRAPS:
951 break;
952 default:
953 return EXCEPTION_CONTINUE_SEARCH;
954 }
955 }
956
957 if( !!m_em->p_auto_start_dbg && debug::attach_debugger( false ) ) {
958 m_em->p_catch_system_errors.value = false;
959#if BOOST_WORKAROUND( BOOST_MSVC, <= 1310)
960 _set_se_translator( &seh_catch_preventer );
961#endif
962 return EXCEPTION_CONTINUE_EXECUTION;
963 }
964
965 m_se_id = id;
966 if( m_se_id == EXCEPTION_ACCESS_VIOLATION && exps->ExceptionRecord->NumberParameters == 2 ) {
967 m_fault_address = (void*)exps->ExceptionRecord->ExceptionInformation[1];
968 m_dir = exps->ExceptionRecord->ExceptionInformation[0] == 0;
969 }
970
971 return EXCEPTION_EXECUTE_HANDLER;
972}
973
974//____________________________________________________________________________//
975
976void
977system_signal_exception::report() const
978{
979 switch( m_se_id ) {
980 // cases classified as system_fatal_error
981 case EXCEPTION_ACCESS_VIOLATION: {
982 if( !m_fault_address )
983 detail::report_error( execution_exception::system_fatal_error, "memory access violation" );
984 else
985 detail::report_error(
986 execution_exception::system_fatal_error,
987 "memory access violation occurred at address 0x%08lx, while attempting to %s",
988 m_fault_address,
989 m_dir ? " read inaccessible data"
990 : " write to an inaccessible (or protected) address"
991 );
992 break;
993 }
994
995 case EXCEPTION_ILLEGAL_INSTRUCTION:
996 detail::report_error( execution_exception::system_fatal_error, "illegal instruction" );
997 break;
998
999 case EXCEPTION_PRIV_INSTRUCTION:
1000 detail::report_error( execution_exception::system_fatal_error, "tried to execute an instruction whose operation is not allowed in the current machine mode" );
1001 break;
1002
1003 case EXCEPTION_IN_PAGE_ERROR:
1004 detail::report_error( execution_exception::system_fatal_error, "access to a memory page that is not present" );
1005 break;
1006
1007 case EXCEPTION_STACK_OVERFLOW:
1008 detail::report_error( execution_exception::system_fatal_error, "stack overflow" );
1009 break;
1010
1011 case EXCEPTION_NONCONTINUABLE_EXCEPTION:
1012 detail::report_error( execution_exception::system_fatal_error, "tried to continue execution after a non continuable exception occurred" );
1013 break;
1014
1015 // cases classified as (non-fatal) system_trap
1016 case EXCEPTION_DATATYPE_MISALIGNMENT:
1017 detail::report_error( execution_exception::system_error, "data misalignment" );
1018 break;
1019
1020 case EXCEPTION_INT_DIVIDE_BY_ZERO:
1021 detail::report_error( execution_exception::system_error, "integer divide by zero" );
1022 break;
1023
1024 case EXCEPTION_INT_OVERFLOW:
1025 detail::report_error( execution_exception::system_error, "integer overflow" );
1026 break;
1027
1028 case EXCEPTION_ARRAY_BOUNDS_EXCEEDED:
1029 detail::report_error( execution_exception::system_error, "array bounds exceeded" );
1030 break;
1031
1032 case EXCEPTION_FLT_DIVIDE_BY_ZERO:
1033 detail::report_error( execution_exception::system_error, "floating point divide by zero" );
1034 break;
1035
1036 case EXCEPTION_FLT_STACK_CHECK:
1037 detail::report_error( execution_exception::system_error,
1038 "stack overflowed or underflowed as the result of a floating-point operation" );
1039 break;
1040
1041 case EXCEPTION_FLT_DENORMAL_OPERAND:
1042 detail::report_error( execution_exception::system_error,
1043 "operand of floating point operation is denormal" );
1044 break;
1045
1046 case EXCEPTION_FLT_INEXACT_RESULT:
1047 detail::report_error( execution_exception::system_error,
1048 "result of a floating-point operation cannot be represented exactly" );
1049 break;
1050
1051 case EXCEPTION_FLT_OVERFLOW:
1052 detail::report_error( execution_exception::system_error,
1053 "exponent of a floating-point operation is greater than the magnitude allowed by the corresponding type" );
1054 break;
1055
1056 case EXCEPTION_FLT_UNDERFLOW:
1057 detail::report_error( execution_exception::system_error,
1058 "exponent of a floating-point operation is less than the magnitude allowed by the corresponding type" );
1059 break;
1060
1061 case EXCEPTION_FLT_INVALID_OPERATION:
1062 detail::report_error( execution_exception::system_error, "floating point error" );
1063 break;
1064
1065 case STATUS_FLOAT_MULTIPLE_FAULTS:
1066 detail::report_error( execution_exception::system_error, "multiple floating point errors" );
1067 break;
1068
1069 case STATUS_FLOAT_MULTIPLE_TRAPS:
1070 detail::report_error( execution_exception::system_error, "multiple floating point errors" );
1071 break;
1072
1073 case EXCEPTION_BREAKPOINT:
1074 detail::report_error( execution_exception::system_error, "breakpoint encountered" );
1075 break;
1076
1077 default:
1078 detail::report_error( execution_exception::system_error, "unrecognized exception. Id: 0x%08lx", m_se_id );
1079 break;
1080 }
1081}
1082
1083//____________________________________________________________________________//
1084
1085// ************************************************************************** //
1086// ************** assert_reporting_function ************** //
1087// ************************************************************************** //
1088
1089int BOOST_TEST_CALL_DECL
1090assert_reporting_function( int reportType, char* userMessage, int* )
1091{
1092 // write this way instead of switch to avoid unreachable statements
1093 if( reportType == BOOST_TEST_CRT_ASSERT || reportType == BOOST_TEST_CRT_ERROR )
1094 detail::report_error( reportType == BOOST_TEST_CRT_ASSERT ? execution_exception::user_error : execution_exception::system_error, userMessage );
1095
1096 return 0;
1097} // assert_reporting_function
1098
1099//____________________________________________________________________________//
1100
1101void BOOST_TEST_CALL_DECL
1102invalid_param_handler( wchar_t const* /* expr */,
1103 wchar_t const* /* func */,
1104 wchar_t const* /* file */,
1105 unsigned /* line */,
1106 uintptr_t /* reserved */)
1107{
1108 detail::report_error( execution_exception::user_error,
1109 "Invalid parameter detected by C runtime library" );
1110}
1111
1112//____________________________________________________________________________//
1113
1114} // namespace detail
1115
1116// ************************************************************************** //
1117// ************** execution_monitor::catch_signals ************** //
1118// ************************************************************************** //
1119
1120int
1121execution_monitor::catch_signals( boost::function<int ()> const& F )
1122{
1123 _invalid_parameter_handler old_iph = _invalid_parameter_handler();
1124 BOOST_TEST_CRT_HOOK_TYPE old_crt_hook = 0;
1125
1126 if( p_catch_system_errors ) {
1127 old_crt_hook = BOOST_TEST_CRT_SET_HOOK( &detail::assert_reporting_function );
1128
1129 old_iph = _set_invalid_parameter_handler(
1130 reinterpret_cast<_invalid_parameter_handler>( &detail::invalid_param_handler ) );
1131 } else if( !p_detect_fp_exceptions ) {
1132#if BOOST_WORKAROUND( BOOST_MSVC, <= 1310)
1133 _set_se_translator( &detail::seh_catch_preventer );
1134#endif
1135 }
1136
1137 detail::system_signal_exception SSE( this );
1138
1139 int ret_val = 0;
1140
1141 __try {
1142 __try {
1143 ret_val = detail::do_invoke( m_custom_translators, F );
1144 }
1145 __except( SSE( GetExceptionCode(), GetExceptionInformation() ) ) {
1146 throw SSE;
1147 }
1148 }
1149 __finally {
1150 if( p_catch_system_errors ) {
1151 BOOST_TEST_CRT_SET_HOOK( old_crt_hook );
1152
1153 _set_invalid_parameter_handler( old_iph );
1154 }
1155 }
1156
1157 return ret_val;
1158}
1159
1160//____________________________________________________________________________//
1161
1162#else // default signal handler
1163
1164namespace detail {
1165
1166class system_signal_exception {
1167public:
1168 void report() const {}
1169};
1170
1171} // namespace detail
1172
1173int
1174execution_monitor::catch_signals( boost::function<int ()> const& F )
1175{
1176 return detail::do_invoke( m_custom_translators , F );
1177}
1178
1179//____________________________________________________________________________//
1180
1181#endif // choose signal handler
1182
1183// ************************************************************************** //
1184// ************** execution_monitor ************** //
1185// ************************************************************************** //
1186
1187execution_monitor::execution_monitor()
1188: p_catch_system_errors( true )
1189, p_auto_start_dbg( false )
1190, p_timeout( 0 )
1191, p_use_alt_stack( true )
1192, p_detect_fp_exceptions( fpe::BOOST_FPE_OFF )
1193{}
1194
1195//____________________________________________________________________________//
1196
1197int
1198execution_monitor::execute( boost::function<int ()> const& F )
1199{
1200 if( debug::under_debugger() )
1201 p_catch_system_errors.value = false;
1202
1203 BOOST_TEST_I_TRY {
1204 detail::fpe_except_guard G( p_detect_fp_exceptions );
1205 unit_test::ut_detail::ignore_unused_variable_warning( G );
1206
1207 return catch_signals( F );
1208 }
1209
1210#ifndef BOOST_NO_EXCEPTIONS
1211
1212 // Catch-clause reference arguments are a bit different from function
1213 // arguments (ISO 15.3 paragraphs 18 & 19). Apparently const isn't
1214 // required. Programmers ask for const anyhow, so we supply it. That's
1215 // easier than answering questions about non-const usage.
1216
1217 catch( char const* ex )
1218 { detail::report_error( ec: execution_exception::cpp_exception_error,
1219 format: "C string: %s", ex ); }
1220 catch( std::string const& ex )
1221 { detail::report_error( ec: execution_exception::cpp_exception_error,
1222 format: "std::string: %s", ex.c_str() ); }
1223
1224 // std:: exceptions
1225#ifdef BOOST_NO_TYPEID
1226#define CATCH_AND_REPORT_STD_EXCEPTION( ex_name ) \
1227 catch( ex_name const& ex ) \
1228 { detail::report_error( execution_exception::cpp_exception_error, \
1229 current_exception_cast<boost::exception const>(), \
1230 #ex_name ": %s", ex.what() ); } \
1231/**/
1232#else
1233#define CATCH_AND_REPORT_STD_EXCEPTION( ex_name ) \
1234 catch( ex_name const& ex ) \
1235 { detail::report_error( execution_exception::cpp_exception_error, \
1236 current_exception_cast<boost::exception const>(), \
1237 "%s: %s", detail::typeid_name(ex), ex.what() ); } \
1238/**/
1239#endif
1240
1241 CATCH_AND_REPORT_STD_EXCEPTION( std::bad_alloc )
1242
1243#if BOOST_WORKAROUND(__BORLANDC__, <= 0x0551)
1244 CATCH_AND_REPORT_STD_EXCEPTION( std::bad_cast )
1245 CATCH_AND_REPORT_STD_EXCEPTION( std::bad_typeid )
1246#else
1247 CATCH_AND_REPORT_STD_EXCEPTION( std::bad_cast )
1248 CATCH_AND_REPORT_STD_EXCEPTION( std::bad_typeid )
1249#endif
1250
1251 CATCH_AND_REPORT_STD_EXCEPTION( std::bad_exception )
1252 CATCH_AND_REPORT_STD_EXCEPTION( std::domain_error )
1253 CATCH_AND_REPORT_STD_EXCEPTION( std::invalid_argument )
1254 CATCH_AND_REPORT_STD_EXCEPTION( std::length_error )
1255 CATCH_AND_REPORT_STD_EXCEPTION( std::out_of_range )
1256 CATCH_AND_REPORT_STD_EXCEPTION( std::range_error )
1257 CATCH_AND_REPORT_STD_EXCEPTION( std::overflow_error )
1258 CATCH_AND_REPORT_STD_EXCEPTION( std::underflow_error )
1259 CATCH_AND_REPORT_STD_EXCEPTION( std::logic_error )
1260 CATCH_AND_REPORT_STD_EXCEPTION( std::runtime_error )
1261 CATCH_AND_REPORT_STD_EXCEPTION( std::exception )
1262#undef CATCH_AND_REPORT_STD_EXCEPTION
1263
1264 catch( boost::exception const& ex )
1265 { detail::report_error( ec: execution_exception::cpp_exception_error,
1266 be: &ex,
1267#ifdef BOOST_NO_TYPEID
1268 "unknown boost::exception" ); }
1269#else
1270 format: typeid(ex).name() ); }
1271#endif
1272
1273 // system errors
1274 catch( system_error const& ex )
1275 { detail::report_error( ec: execution_exception::cpp_exception_error,
1276 format: "system_error produced by: %s: %s", ex.p_failed_exp, std::strerror( errnum: ex.p_errno ) ); }
1277 catch( detail::system_signal_exception const& ex )
1278 { ex.report(); }
1279
1280 // not an error
1281 catch( execution_aborted const& )
1282 { return 0; }
1283
1284 // just forward
1285 catch( execution_exception const& )
1286 { throw; }
1287
1288 // unknown error
1289 catch( ... )
1290 { detail::report_error( ec: execution_exception::cpp_exception_error, format: "unknown type" ); }
1291
1292#endif // !BOOST_NO_EXCEPTION
1293
1294 return 0; // never reached; supplied to quiet compiler warnings
1295} // execute
1296
1297//____________________________________________________________________________//
1298
1299namespace detail {
1300
1301struct forward {
1302 explicit forward( boost::function<void ()> const& F ) : m_F( F ) {}
1303
1304 int operator()() { m_F(); return 0; }
1305
1306 boost::function<void ()> const& m_F;
1307};
1308
1309} // namespace detail
1310void
1311execution_monitor::vexecute( boost::function<void ()> const& F )
1312{
1313 execute( F: detail::forward( F ) );
1314}
1315
1316// ************************************************************************** //
1317// ************** system_error ************** //
1318// ************************************************************************** //
1319
1320system_error::system_error( char const* exp )
1321#ifdef UNDER_CE
1322: p_errno( GetLastError() )
1323#else
1324: p_errno( errno )
1325#endif
1326, p_failed_exp( exp )
1327{}
1328
1329//____________________________________________________________________________//
1330
1331// ************************************************************************** //
1332// ************** execution_exception ************** //
1333// ************************************************************************** //
1334
1335execution_exception::execution_exception( error_code ec_, const_string what_msg_, location const& location_ )
1336: m_error_code( ec_ )
1337, m_what( what_msg_.empty() ? BOOST_TEST_L( "uncaught exception, system error or abort requested" ) : what_msg_ )
1338, m_location( location_ )
1339{}
1340
1341//____________________________________________________________________________//
1342
1343execution_exception::location::location( char const* file_name, size_t line_num, char const* func )
1344: m_file_name( file_name ? file_name : "unknown location" )
1345, m_line_num( line_num )
1346, m_function( func )
1347{}
1348
1349//____________________________________________________________________________//
1350
1351// ************************************************************************** //
1352// **************Floating point exception management interface ************** //
1353// ************************************************************************** //
1354
1355namespace fpe {
1356
1357unsigned
1358enable( unsigned mask )
1359{
1360 boost::ignore_unused(mask);
1361
1362#if defined(UNDER_CE)
1363 /* Not Implemented in Windows CE */
1364 return 0;
1365#elif defined(BOOST_SEH_BASED_SIGNAL_HANDLING)
1366 _clearfp();
1367
1368#if BOOST_WORKAROUND( BOOST_MSVC, <= 1310)
1369 unsigned old_cw = ::_controlfp( 0, 0 );
1370 ::_controlfp( old_cw & ~mask, BOOST_FPE_ALL );
1371#else
1372 unsigned old_cw;
1373 if( ::_controlfp_s( &old_cw, 0, 0 ) != 0 )
1374 return BOOST_FPE_INV;
1375
1376 // Set the control word
1377 if( ::_controlfp_s( 0, old_cw & ~mask, BOOST_FPE_ALL ) != 0 )
1378 return BOOST_FPE_INV;
1379#endif
1380
1381 return ~old_cw & BOOST_FPE_ALL;
1382#elif defined(__GLIBC__) && defined(__USE_GNU) && !defined(BOOST_CLANG) && !defined(BOOST_NO_FENV_H)
1383 ::feclearexcept(BOOST_FPE_ALL);
1384 int res = ::feenableexcept( mask );
1385 return res == -1 ? (unsigned)BOOST_FPE_INV : (unsigned)res;
1386#else
1387 /* Not Implemented */
1388 return 0;
1389#endif
1390}
1391
1392//____________________________________________________________________________//
1393
1394unsigned
1395disable( unsigned mask )
1396{
1397 boost::ignore_unused(mask);
1398
1399#if defined(UNDER_CE)
1400 /* Not Implemented in Windows CE */
1401 return 0;
1402#elif defined(BOOST_SEH_BASED_SIGNAL_HANDLING)
1403 _clearfp();
1404
1405#if BOOST_WORKAROUND( BOOST_MSVC, <= 1310)
1406 unsigned old_cw = ::_controlfp( 0, 0 );
1407 ::_controlfp( old_cw | mask, BOOST_FPE_ALL );
1408#else
1409 unsigned old_cw;
1410 if( ::_controlfp_s( &old_cw, 0, 0 ) != 0 )
1411 return BOOST_FPE_INV;
1412
1413 // Set the control word
1414 if( ::_controlfp_s( 0, old_cw | mask, BOOST_FPE_ALL ) != 0 )
1415 return BOOST_FPE_INV;
1416#endif
1417
1418 return ~old_cw & BOOST_FPE_ALL;
1419#elif defined(__GLIBC__) && defined(__USE_GNU) && !defined(BOOST_CLANG) && !defined(BOOST_NO_FENV_H)
1420 ::feclearexcept(BOOST_FPE_ALL);
1421 int res = ::fedisableexcept( mask );
1422 return res == -1 ? (unsigned)BOOST_FPE_INV : (unsigned)res;
1423#else
1424 /* Not Implemented */
1425 return BOOST_FPE_INV;
1426#endif
1427}
1428
1429//____________________________________________________________________________//
1430
1431} // namespace fpe
1432
1433} // namespace boost
1434
1435#include <boost/test/detail/enable_warnings.hpp>
1436
1437#endif // BOOST_TEST_EXECUTION_MONITOR_IPP_012205GER
1438
1439

source code of boost/boost/test/impl/execution_monitor.ipp