Windows: rpmalloc

FEXCore/Source/Utils/AllocatorHooks.cpp

@@ -82,6 +82,7 @@ void InitializeThread() {
   rpmalloc_thread_initialize();
 }
 
+#ifndef _WIN32
 [[nodiscard]]
 constexpr uint64_t AlignUp(uint64_t value, uint64_t size) {
   return value + (size - value % size) % size;
@@ -95,9 +96,6 @@ static void* FEX_rp_mmap(size_t size, size_t alignment, size_t* offset, size_t*
   }
 
   size_t map_size = AlignUp(size + alignment, global_config.page_size);
-#ifdef _WIN32
-  auto ptr = VirtualAlloc(0, map_size, MEM_RESERVE | MEM_COMMIT, PAGE_READWRITE);
-#else
   auto ptr = fex_mmap_hook(0, map_size, PROT_READ | PROT_WRITE, MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
 
   if (ptr == MAP_FAILED) {
@@ -112,7 +110,6 @@ static void* FEX_rp_mmap(size_t size, size_t alignment, size_t* offset, size_t*
 #endif
     prctl(PR_SET_VMA, PR_SET_VMA_ANON_NAME, ptr, map_size, global_config.page_name);
   }
-#endif
 
   if (ptr == nullptr) {
     fprintf(stderr, "Failed to map VMA region.");
@@ -132,17 +129,7 @@ static void* FEX_rp_mmap(size_t size, size_t alignment, size_t* offset, size_t*
 }
 
 static void FEX_rp_memory_commit(void* address, size_t size) {
-  if (global_config.disable_decommit) {
-    return;
-  }
-
-#ifdef _WIN32
-  if (!VirtualAlloc(address, size, MEM_COMMIT, PAGE_READWRITE)) {
-#else
-  if (false) {
-#endif
-    fprintf(stderr, "Failed to commit VMA region.");
-  }
+  // NOP-implementation.
 }
 
 static void FEX_rp_memory_decommit(void* address, size_t size) {
@@ -150,33 +137,23 @@ static void FEX_rp_memory_decommit(void* address, size_t size) {
     return;
   }
 
-#ifdef _WIN32
-  if (!VirtualFree(address, size, MEM_DECOMMIT)) {
-#else
   if (madvise(address, size, MADV_DONTNEED)) {
-#endif
     fprintf(stderr, "Failed to decommit VMA region.");
   }
 }
 
 static void FEX_rp_memory_unmap(void* address, size_t offset, size_t mapped_size) {
   address = pointer_offset(address, -(int32_t)offset);
-#ifdef _WIN32
-  ::VirtualFree(address, mapped_size, MEM_RELEASE);
-#else
   int Result = fex_munmap_hook(address, mapped_size);
   if (Result == -1) {
     fprintf(stderr, "Failed to unmap VMA region.");
   }
-#endif
 #undef pointer_offset
 }
 
 void SetupAllocatorHooks(mmap_hook_type MMapHook, munmap_hook_type MunmapHook) {
-#ifndef _WIN32
   fex_mmap_hook = MMapHook;
   fex_munmap_hook = MunmapHook;
-#endif
 }
 
 static rpmalloc_interface_t global_interface {
@@ -194,6 +171,7 @@ void InitializeAllocator(size_t PageSize) {
   rp_mmap_hook = FEX_rp_mmap;
   rp_munmap_hook = FEX_rp_memory_unmap;
 }
+#endif
 
 #elif defined(_WIN32)
 #error "Tried building _WIN32 without jemalloc"