fixes 4 stuff

src/common/virtual_buffer.cpp

@@ -37,7 +37,7 @@ void* AllocateMemoryPages(std::size_t size) noexcept {
     void* addr = VirtualAlloc(nullptr, size, MEM_COMMIT, PAGE_READWRITE);
     ASSERT(addr != nullptr);
 #elif defined(__OPENORBIS__)
-    void* addr = mmap(nullptr, size, PROT_READ | PROT_WRITE, MAP_VOID | MAP_PRIVATE, -1, 0);
+    void* addr = mmap(nullptr, size, PROT_NONE, MAP_VOID | MAP_PRIVATE, -1, 0);
     ASSERT(addr != MAP_FAILED);
 #else
     void* addr = mmap(nullptr, size, PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE, -1, 0);
@@ -60,15 +60,15 @@ void FreeMemoryPages(void* addr, [[maybe_unused]] std::size_t size) noexcept {
 #ifdef __OPENORBIS__
 static struct sigaction old_sa_segv;
 static void SwapHandler(int sig, siginfo_t* si, void* raw_context) {
-    void* a_addr = reinterpret_cast<void*>(uintptr_t(si->si_addr) & ~0xfff);
-    mmap(a_addr, 4096, PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE, -1, 0);
-    //mprotect(a_addr, 4096, PROT_READ | PROT_WRITE);
+    void* aligned_addr = reinterpret_cast<void*>(uintptr_t(si->si_addr) & ~0xfff);
+    void* res = mmap(aligned_addr, 4096, PROT_READ | PROT_WRITE, MAP_FIXED | MAP_ANON | MAP_PRIVATE, -1, 0);
+    ASSERT(res != MAP_FAILED);
 }
 
 bool InitSwap() noexcept {
     struct sigaction sa;
     sa.sa_handler = NULL;
-    sa.sa_sigaction = &SwapHandler;
+    sa.__sa_handler.__sa_sigaction = &SwapHandler;
     sigemptyset(&sa.sa_mask);
     sa.sa_flags = SA_SIGINFO | SA_RESTART;
     return sigaction(SIGSEGV, &sa, &old_sa_segv) == 0;

src/core/hle/kernel/board/nintendo/nx/k_system_control.cpp

@@ -85,11 +85,7 @@ size_t KSystemControl::Init::GetIntendedMemorySize() {
     switch (GetMemorySizeForInit()) {
     case Smc::MemorySize_4GB:
     default: // All invalid modes should go to 4GB.
-#ifdef __OPENORBIS__
-        return 2_GiB;
-#else
         return 4_GiB;
-#endif
     case Smc::MemorySize_6GB:
         return 6_GiB;
     case Smc::MemorySize_8GB:

src/dynarmic/src/dynarmic/backend/exception_handler_posix.cpp

@@ -60,7 +60,7 @@ public:
         signal_stack_memory = mmap(nullptr, signal_stack_size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
 
 #ifdef __OPENORBIS__
-        fmt::print(stderr, "no fastmem on ps4\n");
+        fmt::print(stderr, "no fastmem on PS4\n");
         supports_fast_mem = false;
 #else
         stack_t signal_stack{};

src/yuzu_cmd/CMakeLists.txt

@@ -35,7 +35,7 @@ target_link_libraries(yuzu-cmd PRIVATE glad)
 if (MSVC)
     target_link_libraries(yuzu-cmd PRIVATE getopt)
 elseif(PLATFORM_PS4)
-    target_link_libraries(yuzu-cmd PRIVATE SceVideoOut SceAudioOut ScePad)
+    target_link_libraries(yuzu-cmd PRIVATE SceVideoOut SceAudioOut ScePad SceSystemService)
 endif()
 target_link_libraries(yuzu-cmd PRIVATE ${PLATFORM_LIBRARIES} Threads::Threads)