diff options
Diffstat (limited to 'libs/pthreads/src/dll.c')
| -rw-r--r-- | libs/pthreads/src/dll.c | 127 |
1 files changed, 102 insertions, 25 deletions
diff --git a/libs/pthreads/src/dll.c b/libs/pthreads/src/dll.c index 05e01bee76..bd3bbaeae9 100644 --- a/libs/pthreads/src/dll.c +++ b/libs/pthreads/src/dll.c @@ -6,41 +6,45 @@ * * -------------------------------------------------------------------------- * - * Pthreads-win32 - POSIX Threads Library for Win32 + * Pthreads4w - POSIX Threads Library for Win32 * Copyright(C) 1998 John E. Bossom - * Copyright(C) 1999,2005 Pthreads-win32 contributors - * - * Contact Email: rpj@callisto.canberra.edu.au - * + * Copyright(C) 1999-2018, Pthreads4w contributors + * + * Homepage: https://sourceforge.net/projects/pthreads4w/ + * * The current list of contributors is contained * in the file CONTRIBUTORS included with the source * code distribution. The list can also be seen at the * following World Wide Web location: - * http://sources.redhat.com/pthreads-win32/contributors.html - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library 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 - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library in the file COPYING.LIB; - * if not, write to the Free Software Foundation, Inc., - * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA + * https://sourceforge.net/p/pthreads4w/wiki/Contributors/ + * + * This file is part of Pthreads4w. + * + * Pthreads4w 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 3 of the License, or + * (at your option) any later version. + * + * Pthreads4w 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 Pthreads4w. If not, see <http://www.gnu.org/licenses/>. * */ -#if !defined(PTW32_STATIC_LIB) +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif #include "pthread.h" #include "implement.h" +#if !defined(PTW32_STATIC_LIB) + #if defined(_MSC_VER) -/* +/* * lpvReserved yields an unreferenced formal parameter; * ignore it */ @@ -53,8 +57,7 @@ */ extern "C" #endif /* __cplusplus */ - BOOL WINAPI -DllMain (HINSTANCE hinstDll, DWORD fdwReason, LPVOID lpvReserved) + BOOL WINAPI DllMain (HINSTANCE hinstDll, DWORD fdwReason, LPVOID lpvReserved) { BOOL result = PTW32_TRUE; @@ -89,4 +92,78 @@ DllMain (HINSTANCE hinstDll, DWORD fdwReason, LPVOID lpvReserved) } /* DllMain */ +#endif /* !PTW32_STATIC_LIB */ + +#if ! defined(PTW32_BUILD_INLINED) +/* + * Avoid "translation unit is empty" warnings + */ +typedef int foo; +#endif + +#if defined(PTW32_STATIC_LIB) + +/* + * Note: MSVC 8 and higher use code in dll.c, which enables TLS cleanup + * on thread exit. Code here can only do process init and exit functions. + */ + +#if defined(__MINGW32__) || defined(_MSC_VER) + +/* For an explanation of this code (at least the MSVC parts), refer to + * + * http://www.codeguru.com/cpp/misc/misc/threadsprocesses/article.php/c6945/ + * ("Running Code Before and After Main") + * + * Compatibility with MSVC8 was cribbed from Boost: + * + * http://svn.boost.org/svn/boost/trunk/libs/thread/src/win32/tss_pe.cpp + * + * In addition to that, because we are in a static library, and the linker + * can't tell that the constructor/destructor functions are actually + * needed, we need a way to prevent the linker from optimizing away this + * module. The pthread_win32_autostatic_anchor() hack below (and in + * implement.h) does the job in a portable manner. + */ + +static int on_process_init(void) +{ + pthread_win32_process_attach_np (); + return 0; +} + +static int on_process_exit(void) +{ + pthread_win32_thread_detach_np (); + pthread_win32_process_detach_np (); + return 0; +} + +#if defined(__GNUC__) +__attribute__((section(".ctors"), used)) static int (*gcc_ctor)(void) = on_process_init; +__attribute__((section(".dtors"), used)) static int (*gcc_dtor)(void) = on_process_exit; +#elif defined(_MSC_VER) +# if _MSC_VER >= 1400 /* MSVC8+ */ +# pragma section(".CRT$XCU", long, read) +# pragma section(".CRT$XPU", long, read) +__declspec(allocate(".CRT$XCU")) static int (*msc_ctor)(void) = on_process_init; +__declspec(allocate(".CRT$XPU")) static int (*msc_dtor)(void) = on_process_exit; +# else +# pragma data_seg(".CRT$XCU") +static int (*msc_ctor)(void) = on_process_init; +# pragma data_seg(".CRT$XPU") +static int (*msc_dtor)(void) = on_process_exit; +# pragma data_seg() /* reset data segment */ +# endif +#endif + +#endif /* defined(__MINGW32__) || defined(_MSC_VER) */ + +/* This dummy function exists solely to be referenced by other modules + * (specifically, in implement.h), so that the linker can't optimize away + * this module. Don't call it. + */ +void ptw32_autostatic_anchor(void) { abort(); } + #endif /* PTW32_STATIC_LIB */ + |