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Emulate libSceGnmDriver's init behavior (#3024)

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This time, perform it after the LoadSharedLibraries call, which places it after the various init memory mappings GFD engine titles perform.
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Stephen Miller 2025-06-03 00:02:51 -05:00 • committed by GitHub
parent 1930a2132c
commit 2c78272185
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src/core/linker.cpp
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@ -117,6 +117,18 @@ void Linker::Execute(const std::vector<std::string> args) {
Common::SetCurrentThreadName("GAME_MainThread");
LoadSharedLibraries();
// Simulate libSceGnmDriver initialization, which maps a chunk of direct memory.
// Some games fail without accurately emulating this behavior.
s64 phys_addr{};
s32 result = Libraries::Kernel::sceKernelAllocateDirectMemory(
0, Libraries::Kernel::sceKernelGetDirectMemorySize(), 0x10000, 0x10000, 3, &phys_addr);
if (result == 0) {
void* addr{reinterpret_cast<void*>(0xfe0000000)};
result = Libraries::Kernel::sceKernelMapNamedDirectMemory(
&addr, 0x10000, 0x13, 0, phys_addr, 0x10000, "SceGnmDriver");
}
ASSERT_MSG(result == 0, "Unable to emulate libSceGnmDriver initialization");
// Start main module.
EntryParams params{};
params.argc = 1;