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Made advanced Windows API calls dynamically linked

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Made advanced Windows API calls (those from Advapi32.dll) dynamically
linked to avoid link errors when compiling using
Intel icx compiler for Windows.

https://github.com/official-stockfish/Stockfish/pull/4467

No functional change
This commit is contained in:
Maxim Masiutin 2023-03-29 12:43:36 +03:00 • committed by Joost VandeVondele
parent 7a6fa34f5f
commit e8742bdab3
1 changed files with 24 additions and 4 deletions
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28
src/misc.cpp
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@ -38,6 +38,9 @@ using fun2_t = bool(*)(USHORT, PGROUP_AFFINITY);
using fun3_t = bool(*)(HANDLE, CONST GROUP_AFFINITY*, PGROUP_AFFINITY);
using fun4_t = bool(*)(USHORT, PGROUP_AFFINITY, USHORT, PUSHORT);
using fun5_t = WORD(*)();
using fun6_t = bool(*)(HANDLE, DWORD, PHANDLE);
using fun7_t = bool(*)(LPCSTR, LPCSTR, PLUID);
using fun8_t = bool(*)(HANDLE, BOOL, PTOKEN_PRIVILEGES, DWORD, PTOKEN_PRIVILEGES, PDWORD);
}
#endif
@ -488,11 +491,26 @@ static void* aligned_large_pages_alloc_windows([[maybe_unused]] size_t allocSize
if (!largePageSize)
return nullptr;
// Dynamically link OpenProcessToken, LookupPrivilegeValue and AdjustTokenPrivileges
HMODULE k32 = GetModuleHandle("Advapi32.dll");
auto fun6 = (fun6_t)(void(*)())GetProcAddress(k32, "OpenProcessToken");
if (!fun6)
return nullptr;
auto fun7 = (fun7_t)(void(*)())GetProcAddress(k32, "LookupPrivilegeValueA");
if (!fun7)
return nullptr;
auto fun8 = (fun8_t)(void(*)())GetProcAddress(k32, "AdjustTokenPrivileges");
if (!fun8)
return nullptr;
// We need SeLockMemoryPrivilege, so try to enable it for the process
if (!OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hProcessToken))
// OpenProcessToken()
if (!fun6(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hProcessToken))
return nullptr;
if (LookupPrivilegeValue(nullptr, SE_LOCK_MEMORY_NAME, &luid))
// LookupPrivilegeValueA()
if (fun7(nullptr, SE_LOCK_MEMORY_NAME, &luid))
{
TOKEN_PRIVILEGES tp { };
TOKEN_PRIVILEGES prevTp { };
@ -504,7 +522,8 @@ static void* aligned_large_pages_alloc_windows([[maybe_unused]] size_t allocSize
// Try to enable SeLockMemoryPrivilege. Note that even if AdjustTokenPrivileges() succeeds,
// we still need to query GetLastError() to ensure that the privileges were actually obtained.
if (AdjustTokenPrivileges(
// AdjustTokenPrivileges()
if (fun8(
hProcessToken, FALSE, &tp, sizeof(TOKEN_PRIVILEGES), &prevTp, &prevTpLen) &&
GetLastError() == ERROR_SUCCESS)
{
@ -514,7 +533,8 @@ static void* aligned_large_pages_alloc_windows([[maybe_unused]] size_t allocSize
nullptr, allocSize, MEM_RESERVE | MEM_COMMIT | MEM_LARGE_PAGES, PAGE_READWRITE);
// Privilege no longer needed, restore previous state
AdjustTokenPrivileges(hProcessToken, FALSE, &prevTp, 0, nullptr, nullptr);
// AdjustTokenPrivileges ()
fun8(hProcessToken, FALSE, &prevTp, 0, nullptr, nullptr);
}
}