kate/BadFish
1
0
Fork 0
mirror of https://github.com/sockspls/badfish synced 2025-07-11 19:49:14 +00:00
Code Issues Releases Wiki Activity

Made advanced Windows API calls dynamically linked

Browse source 
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
Show stats Download patch file Download diff file Expand all files Collapse all files

28
src/misc.cpp
View file

@ -38,6 +38,9 @@ using fun2_t = bool(*)(USHORT, PGROUP_AFFINITY);
using fun3_t = bool(*)(HANDLE, CONST GROUP_AFFINITY*, PGROUP_AFFINITY); using fun3_t = bool(*)(HANDLE, CONST GROUP_AFFINITY*, PGROUP_AFFINITY);
using fun4_t = bool(*)(USHORT, PGROUP_AFFINITY, USHORT, PUSHORT); using fun4_t = bool(*)(USHORT, PGROUP_AFFINITY, USHORT, PUSHORT);
using fun5_t = WORD(*)(); 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 #endif
@ -488,11 +491,26 @@ static void* aligned_large_pages_alloc_windows([[maybe_unused]] size_t allocSize
if (!largePageSize) if (!largePageSize)
return nullptr; 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 // 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; return nullptr;
if (LookupPrivilegeValue(nullptr, SE_LOCK_MEMORY_NAME, &luid)) // LookupPrivilegeValueA()
if (fun7(nullptr, SE_LOCK_MEMORY_NAME, &luid))
{ {
TOKEN_PRIVILEGES tp { }; TOKEN_PRIVILEGES tp { };
TOKEN_PRIVILEGES prevTp { }; 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, // Try to enable SeLockMemoryPrivilege. Note that even if AdjustTokenPrivileges() succeeds,
// we still need to query GetLastError() to ensure that the privileges were actually obtained. // 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) && hProcessToken, FALSE, &tp, sizeof(TOKEN_PRIVILEGES), &prevTp, &prevTpLen) &&
GetLastError() == ERROR_SUCCESS) 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); nullptr, allocSize, MEM_RESERVE | MEM_COMMIT | MEM_LARGE_PAGES, PAGE_READWRITE);
// Privilege no longer needed, restore previous state // Privilege no longer needed, restore previous state
AdjustTokenPrivileges(hProcessToken, FALSE, &prevTp, 0, nullptr, nullptr); // AdjustTokenPrivileges ()
fun8(hProcessToken, FALSE, &prevTp, 0, nullptr, nullptr);
} }
} }