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fix steamclient_extra linking error with AddressOfReturnAddress()

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This commit is contained in:
otavepto 2024-05-24 10:03:33 +03:00
parent 3713a9c5f9
commit 8ff4bc72c6
1 changed files with 11 additions and 3 deletions
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14
tools/steamclient_loader/win/extra_protection/stubdrm.cpp
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@ -6,6 +6,14 @@
#include <mutex>
#include <intrin.h>
// MinGW doesn't implement _AddressOfReturnAddress(), throws linker error
// https://gcc.gnu.org/onlinedocs/gcc/Return-Address.html
#if defined(__GNUC__) && (defined(__MINGW32__) || defined(__MINGW64__))
#define ADDR_OF_RET_ADDR() ((void*)((char*)__builtin_frame_address(0) + sizeof(void*)))
#else // regular windows
#define ADDR_OF_RET_ADDR() _AddressOfReturnAddress()
#endif
typedef struct SnrUnit {
std::string search_patt{};
std::string replace_patt{};
@ -204,7 +212,7 @@ static DWORD WINAPI GetTickCount_hook()
std::lock_guard lk(mtx_win32_api);
if (GetTickCount_hooked) { // american truck doesn't call GetModuleHandleA
void* *ret_ptr = (void**)_AddressOfReturnAddress();
void* *ret_ptr = (void**)ADDR_OF_RET_ADDR();
patch_if_possible(*ret_ptr);
}
@ -223,7 +231,7 @@ static HMODULE WINAPI GetModuleHandleA_hook(
if (GetModuleHandleA_hooked &&
lpModuleName &&
common_helpers::ends_with_i(lpModuleName, "ntdll.dll")) {
void* *ret_ptr = (void**)_AddressOfReturnAddress();
void* *ret_ptr = (void**)ADDR_OF_RET_ADDR();
patch_if_possible(*ret_ptr);
}
@ -244,7 +252,7 @@ static BOOL WINAPI GetModuleHandleExA_hook(
if (GetModuleHandleExA_hooked &&
(dwFlags == (GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS | GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT)) &&
((uint8_t *)lpModuleName >= bind_addr_base && (uint8_t *)lpModuleName < bind_addr_end)) {
void* *ret_ptr = (void**)_AddressOfReturnAddress();
void* *ret_ptr = (void**)ADDR_OF_RET_ADDR();
patch_if_possible(*ret_ptr);
}