mirror of
https://github.com/ApfelTeeSaft/reactos.git
synced 2026-09-02 12:23:31 +00:00
Ahmed Arif
4c3d15abe6
llvm-mingw's static runtime (libc++, libmingwex, libc++abi, libunwind) references symbols the NT 5.2 export surface does not provide. Add a static library, linked into the Clang runtime chain below DLL_EXPORT_VERSION 0x601, providing: - C99 vsnprintf/snprintf on top of _vsnprintf/_vscprintf. - __imp_* aliases binding dllimport references to the static CRT definitions instead of ucrtbase import thunks, which collide with them (lld: "<sym> was replaced"). - K32EnumProcessModules, forwarded to psapi's EnumProcessModules. - The Win7 SRW lock and Vista condition variable surface, bound to the RTL implementation linked statically from rtl_vista. Modules get one self-contained, consistent synchronization implementation (ReactOS' lock layout is not Windows-compatible), no kernel32_vista.dll dependency, and stay runnable on any Windows version. Static SRW linking suggested by Timo Kreuzer. Address review feedback on the llvm-compat shims: sync_static.c now uses the proper SDK/NDK headers with WINAPI/NTAPI, imp_alias.h moved to sdk/include/reactos and fixes the msvcrtex slot decorations too, and a new InitOnceExecuteOnce shim lets us drop libkernel32_vista from the interface.
70 lines
2.0 KiB
C
70 lines
2.0 KiB
C
/*
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* PROJECT: ReactOS CRT library
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* LICENSE: GPL-2.0+ (https://spdx.org/licenses/GPL-2.0+)
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* PURPOSE: rand_s implementation
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* COPYRIGHT: Copyright 2010 Sylvain Petreolle <[email protected]>
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* Copyright 2015 Christoph von Wittich <[email protected]>
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* Copyright 2015 Pierre Schweitzer <[email protected]>
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*/
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#include <precomp.h>
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typedef BOOLEAN (WINAPI *PFN_SystemFunction036)(PVOID, ULONG); // RtlGenRandom
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PFN_SystemFunction036 g_pfnSystemFunction036 = NULL;
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/*********************************************************************
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* rand_s (MSVCRT.@)
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*/
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int CDECL rand_s(unsigned int *pval)
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{
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HINSTANCE hadvapi32;
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if (!pval)
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{
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_invalid_parameter(NULL,_CRT_WIDE("rand_s"),_CRT_WIDE(__FILE__),__LINE__, 0);
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*_errno() = EINVAL;
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return EINVAL;
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}
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*pval = 0;
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if (g_pfnSystemFunction036 == NULL)
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{
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PFN_SystemFunction036 pSystemFunction036;
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hadvapi32 = LoadLibraryA("advapi32.dll");
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if (!hadvapi32)
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{
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_invalid_parameter(NULL,_CRT_WIDE("rand_s"),_CRT_WIDE(__FILE__),__LINE__, 0);
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*_errno() = EINVAL;
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return EINVAL;
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}
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pSystemFunction036 = (void*)GetProcAddress(hadvapi32, "SystemFunction036");
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if (!pSystemFunction036)
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{
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_invalid_parameter(NULL,_CRT_WIDE("rand_s"),_CRT_WIDE(__FILE__),__LINE__, 0);
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*_errno() = EINVAL;
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FreeLibrary(hadvapi32);
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return EINVAL;
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}
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g_pfnSystemFunction036 = pSystemFunction036;
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}
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if (!g_pfnSystemFunction036(pval, sizeof(*pval)))
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{
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_invalid_parameter(NULL,_CRT_WIDE("rand_s"),_CRT_WIDE(__FILE__),__LINE__, 0);
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*_errno() = EINVAL;
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return EINVAL;
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}
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return 0;
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}
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// Small hack: import slot bound to the static definition, so the GCC and LLVM C++ runtimes can link
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#if defined(__GNUC__) && (DLL_EXPORT_VERSION < 0x600)
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#include <imp_alias.h>
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IMP_ALIAS_CDECL(rand_s);
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#endif
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