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8077bf3d10
binarycrusader
Since changeset 358696c354a8, SDL 2.0 has been broken on Solaris when compiling with the Solaris Studio compiler (which uses the pthread implementation of SDL_AtomicLock).
Notably, it gets stuck at the MemoryBarrierRelease in SDL_GetErrBuf:
6585 # 218
6586 if (!tls_errbuf && !tls_being_created) {
6587 SDL_AtomicLock_REAL ( & tls_lock );
6588 if (!tls_errbuf) {
6589 SDL_TLSID slot;
6590 tls_being_created = SDL_TRUE;
6591 slot = SDL_TLSCreate_REAL ( );
6592 tls_being_created = SDL_FALSE;
6593 { SDL_SpinLock _tmp = 0 ; SDL_AtomicLock_REAL ( & _tmp ) ; SDL_AtomicUnlock_REAL ( & _tmp ) ; };
^^^ loops forever above
6594 tls_errbuf = slot;
6595 }
6596 SDL_AtomicUnlock_REAL ( & tls_lock );
6597 }
Running: testthread
(process id 28926)
^Cdbx: warning: Interrupt ignored but forwarded to child.
signal INT (Interrupt) in __nanosleep at 0xfe52a875
0xfe52a875: __nanosleep+0x0015: jae __nanosleep+0x23 [ 0xfe52a883, .+0xe ]
Current function is SDL_Delay_REAL
204 was_error = nanosleep(&tv, &elapsed);
(dbx) where
[1] __nanosleep(0xfeffe848, 0xfeffe850, 0xfe75a5ac, 0xfe5169d8), at 0xfe52a875
[2] nanosleep(0xfeffe848, 0xfeffe850), at 0xfe516a3b
=>[3] SDL_Delay_REAL(ms = 0), line 204 in "SDL_systimer.c"
[4] SDL_AtomicLock_REAL(lock = 0xfeffe88c), line 104 in "SDL_spinlock.c"
[5] SDL_GetErrBuf(), line 225 in "SDL_thread.c"
[6] SDL_ClearError_REAL(), line 216 in "SDL_error.c"
[7] SDL_InitSubSystem_REAL(flags = 0), line 116 in "SDL.c"
[8] SDL_Init_REAL(flags = 0), line 244 in "SDL.c"
[9] SDL_Init(a = 0), line 89 in "SDL_dynapi_procs.h"
[10] main(argc = 1, argv = 0xfeffe948), line 65 in "testthread.c"
As far as I can tell, this is because pthread_spin_trylock() always returns EBUSY for this particular lock; since it works in other places, I'm suspicious.
Different Solaris Studio compiler versions seem to make no difference.
I've verified this is broken on Linux as well if SDL_spinlock.c is modified to use the pthread implementation.
This appears to be because pthread_spin_init() and pthread_spin_destroy() are not used with the locks as required.
179 lines
4.4 KiB
C
179 lines
4.4 KiB
C
/* include/SDL_config.h. Generated from SDL_config.h.in by configure. */
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/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2014 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#ifndef _SDL_config_linux_h
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#define _SDL_config_linux_h
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/**
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* \file SDL_config.h.in
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*
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* This is a set of defines to configure the SDL features
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*/
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/* General platform specific identifiers */
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#include "SDL_platform.h"
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/* Make sure that this isn't included by Visual C++ */
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#ifdef _MSC_VER
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#error You should run hg revert SDL_config.h
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#endif
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/* C language features */
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/* #undef const */
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/* #undef inline */
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/* #undef volatile */
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/* C datatypes */
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#ifdef __LP64__
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#define SIZEOF_VOIDP 8
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#else
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#define SIZEOF_VOIDP 4
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#endif
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#define HAVE_GCC_ATOMICS 1
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/* #undef HAVE_GCC_SYNC_LOCK_TEST_AND_SET */
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/* Comment this if you want to build without any C library requirements */
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#define HAVE_LIBC 1
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#if HAVE_LIBC
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/* Useful headers */
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#define HAVE_ALLOCA_H 1
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#define HAVE_SYS_TYPES_H 1
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#define HAVE_STDIO_H 1
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#define STDC_HEADERS 1
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#define HAVE_STDLIB_H 1
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#define HAVE_STDARG_H 1
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#define HAVE_MALLOC_H 1
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#define HAVE_MEMORY_H 1
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#define HAVE_STRING_H 1
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#define HAVE_STRINGS_H 1
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#define HAVE_INTTYPES_H 1
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#define HAVE_STDINT_H 1
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#define HAVE_CTYPE_H 1
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#define HAVE_MATH_H 1
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#define HAVE_ICONV_H 1
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#define HAVE_SIGNAL_H 1
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/* #undef HAVE_ALTIVEC_H */
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/* #undef HAVE_PTHREAD_NP_H */
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/* #undef HAVE_LIBUDEV_H */
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#define HAVE_DBUS_DBUS_H 1
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/* C library functions */
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#define HAVE_MALLOC 1
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#define HAVE_CALLOC 1
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#define HAVE_REALLOC 1
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#define HAVE_FREE 1
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#define HAVE_ALLOCA 1
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#ifndef __WIN32__ /* Don't use C runtime versions of these on Windows */
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#define HAVE_GETENV 1
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#define HAVE_SETENV 1
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#define HAVE_PUTENV 1
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#define HAVE_UNSETENV 1
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#endif
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#define HAVE_QSORT 1
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#define HAVE_ABS 1
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#define HAVE_BCOPY 1
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#define HAVE_MEMSET 1
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#define HAVE_MEMCPY 1
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#define HAVE_MEMMOVE 1
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#define HAVE_MEMCMP 1
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#define HAVE_STRLEN 1
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/* #undef HAVE_STRLCPY */
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/* #undef HAVE_STRLCAT */
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#define HAVE_STRDUP 1
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/* #undef HAVE__STRREV */
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/* #undef HAVE__STRUPR */
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/* #undef HAVE__STRLWR */
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/* #undef HAVE_INDEX */
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/* #undef HAVE_RINDEX */
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#define HAVE_STRCHR 1
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#define HAVE_STRRCHR 1
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#define HAVE_STRSTR 1
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/* #undef HAVE_ITOA */
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/* #undef HAVE__LTOA */
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/* #undef HAVE__UITOA */
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/* #undef HAVE__ULTOA */
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#define HAVE_STRTOL 1
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#define HAVE_STRTOUL 1
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/* #undef HAVE__I64TOA */
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/* #undef HAVE__UI64TOA */
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#define HAVE_STRTOLL 1
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#define HAVE_STRTOULL 1
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#define HAVE_STRTOD 1
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#define HAVE_ATOI 1
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#define HAVE_ATOF 1
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#define HAVE_STRCMP 1
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#define HAVE_STRNCMP 1
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/* #undef HAVE__STRICMP */
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#define HAVE_STRCASECMP 1
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/* #undef HAVE__STRNICMP */
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#define HAVE_STRNCASECMP 1
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#define HAVE_VSSCANF 1
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#define HAVE_VSNPRINTF 1
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#define HAVE_M_PI /**/
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#define HAVE_ATAN 1
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#define HAVE_ATAN2 1
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#define HAVE_CEIL 1
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#define HAVE_COPYSIGN 1
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#define HAVE_COS 1
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#define HAVE_COSF 1
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#define HAVE_FABS 1
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#define HAVE_FLOOR 1
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#define HAVE_LOG 1
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#define HAVE_POW 1
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#define HAVE_SCALBN 1
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#define HAVE_SIN 1
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#define HAVE_SINF 1
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#define HAVE_SQRT 1
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#define HAVE_FSEEKO 1
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#define HAVE_FSEEKO64 1
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#define HAVE_SIGACTION 1
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#define HAVE_SA_SIGACTION 1
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#define HAVE_SETJMP 1
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#define HAVE_NANOSLEEP 1
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#define HAVE_SYSCONF 1
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/* #undef HAVE_SYSCTLBYNAME */
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#define HAVE_CLOCK_GETTIME 1
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/* #undef HAVE_GETPAGESIZE */
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#define HAVE_MPROTECT 1
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#define HAVE_ICONV 1
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#define HAVE_PTHREAD_SETNAME_NP 1
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/* #undef HAVE_PTHREAD_SET_NAME_NP */
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#define HAVE_SEM_TIMEDWAIT 1
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#else
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#define HAVE_STDARG_H 1
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#define HAVE_STDDEF_H 1
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#define HAVE_STDINT_H 1
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#endif /* HAVE_LIBC */
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/* SDL internal assertion support */
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/* #undef SDL_DEFAULT_ASSERT_LEVEL */
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/* Paste generated code here */
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/* Enable assembly routines */
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#define SDL_ASSEMBLY_ROUTINES 1
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/* #undef SDL_ALTIVEC_BLITTERS */
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#endif /* _SDL_config_h */
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