64 lines
2.3 KiB
C
64 lines
2.3 KiB
C
/*
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* win32 specific declarations
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*
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* Copyright (c) 2003-2008 Fabrice Bellard
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* Copyright (c) 2010 Jes Sorensen <Jes.Sorensen@redhat.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef QEMU_OS_WIN32_H
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#define QEMU_OS_WIN32_H
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#include <winsock2.h>
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#include <windows.h>
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#include <ws2tcpip.h>
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#if defined(_WIN64)
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/* On w64, setjmp is implemented by _setjmp which needs a second parameter.
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* If this parameter is NULL, longjump does no stack unwinding.
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* That is what we need for QEMU. Passing the value of register rsp (default)
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* lets longjmp try a stack unwinding which will crash with generated code. */
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#if defined(_MSC_VER) // MSVC
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// See qemu/include/utils/setjmp-wrapper-win32.asm for details.
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extern int _setjmp_wrapper(jmp_buf);
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#undef setjmp
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#define setjmp(env) _setjmp_wrapper(env)
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#else // MingW
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#undef setjmp
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#define setjmp(env) _setjmp(env, NULL)
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#endif
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#endif
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/* QEMU uses sigsetjmp()/siglongjmp() as the portable way to specify
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* "longjmp and don't touch the signal masks". Since we know that the
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* savemask parameter will always be zero we can safely define these
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* in terms of setjmp/longjmp on Win32.
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*/
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#define sigjmp_buf jmp_buf
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#define sigsetjmp(env, savemask) setjmp(env)
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#define siglongjmp(env, val) longjmp(env, val)
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int getpagesize(void);
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#endif
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