diff options
Diffstat (limited to '')
| -rw-r--r-- | src/common/memory_util.cpp | 177 |
1 files changed, 0 insertions, 177 deletions
diff --git a/src/common/memory_util.cpp b/src/common/memory_util.cpp deleted file mode 100644 index 9736fb12a..000000000 --- a/src/common/memory_util.cpp +++ /dev/null @@ -1,177 +0,0 @@ -// Copyright 2013 Dolphin Emulator Project / 2014 Citra Emulator Project -// Licensed under GPLv2 or any later version -// Refer to the license.txt file included. - -#include "common/logging/log.h" -#include "common/memory_util.h" - -#ifdef _WIN32 -#include <windows.h> -// Windows.h needs to be included before psapi.h -#include <psapi.h> -#include "common/common_funcs.h" -#include "common/string_util.h" -#else -#include <cstdlib> -#include <sys/mman.h> -#endif - -#if !defined(_WIN32) && defined(ARCHITECTURE_x86_64) && !defined(MAP_32BIT) -#include <unistd.h> -#define PAGE_MASK (getpagesize() - 1) -#define round_page(x) ((((unsigned long)(x)) + PAGE_MASK) & ~(PAGE_MASK)) -#endif - -// This is purposely not a full wrapper for virtualalloc/mmap, but it -// provides exactly the primitive operations that Dolphin needs. - -void* AllocateExecutableMemory(std::size_t size, bool low) { -#if defined(_WIN32) - void* ptr = VirtualAlloc(nullptr, size, MEM_COMMIT, PAGE_EXECUTE_READWRITE); -#else - static char* map_hint = nullptr; -#if defined(ARCHITECTURE_x86_64) && !defined(MAP_32BIT) - // This OS has no flag to enforce allocation below the 4 GB boundary, - // but if we hint that we want a low address it is very likely we will - // get one. - // An older version of this code used MAP_FIXED, but that has the side - // effect of discarding already mapped pages that happen to be in the - // requested virtual memory range (such as the emulated RAM, sometimes). - if (low && (!map_hint)) - map_hint = (char*)round_page(512 * 1024 * 1024); /* 0.5 GB rounded up to the next page */ -#endif - void* ptr = mmap(map_hint, size, PROT_READ | PROT_WRITE | PROT_EXEC, - MAP_ANON | MAP_PRIVATE -#if defined(ARCHITECTURE_x86_64) && defined(MAP_32BIT) - | (low ? MAP_32BIT : 0) -#endif - , - -1, 0); -#endif /* defined(_WIN32) */ - -#ifdef _WIN32 - if (ptr == nullptr) { -#else - if (ptr == MAP_FAILED) { - ptr = nullptr; -#endif - LOG_ERROR(Common_Memory, "Failed to allocate executable memory"); - } -#if !defined(_WIN32) && defined(ARCHITECTURE_x86_64) && !defined(MAP_32BIT) - else { - if (low) { - map_hint += size; - map_hint = (char*)round_page(map_hint); /* round up to the next page */ - } - } -#endif - -#if EMU_ARCH_BITS == 64 - if ((u64)ptr >= 0x80000000 && low == true) - LOG_ERROR(Common_Memory, "Executable memory ended up above 2GB!"); -#endif - - return ptr; -} - -void* AllocateMemoryPages(std::size_t size) { -#ifdef _WIN32 - void* ptr = VirtualAlloc(nullptr, size, MEM_COMMIT, PAGE_READWRITE); -#else - void* ptr = mmap(nullptr, size, PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE, -1, 0); - - if (ptr == MAP_FAILED) - ptr = nullptr; -#endif - - if (ptr == nullptr) - LOG_ERROR(Common_Memory, "Failed to allocate raw memory"); - - return ptr; -} - -void* AllocateAlignedMemory(std::size_t size, std::size_t alignment) { -#ifdef _WIN32 - void* ptr = _aligned_malloc(size, alignment); -#else - void* ptr = nullptr; -#ifdef ANDROID - ptr = memalign(alignment, size); -#else - if (posix_memalign(&ptr, alignment, size) != 0) - LOG_ERROR(Common_Memory, "Failed to allocate aligned memory"); -#endif -#endif - - if (ptr == nullptr) - LOG_ERROR(Common_Memory, "Failed to allocate aligned memory"); - - return ptr; -} - -void FreeMemoryPages(void* ptr, std::size_t size) { - if (ptr) { -#ifdef _WIN32 - if (!VirtualFree(ptr, 0, MEM_RELEASE)) - LOG_ERROR(Common_Memory, "FreeMemoryPages failed!\n{}", GetLastErrorMsg()); -#else - munmap(ptr, size); -#endif - } -} - -void FreeAlignedMemory(void* ptr) { - if (ptr) { -#ifdef _WIN32 - _aligned_free(ptr); -#else - free(ptr); -#endif - } -} - -void WriteProtectMemory(void* ptr, std::size_t size, bool allowExecute) { -#ifdef _WIN32 - DWORD oldValue; - if (!VirtualProtect(ptr, size, allowExecute ? PAGE_EXECUTE_READ : PAGE_READONLY, &oldValue)) - LOG_ERROR(Common_Memory, "WriteProtectMemory failed!\n{}", GetLastErrorMsg()); -#else - mprotect(ptr, size, allowExecute ? (PROT_READ | PROT_EXEC) : PROT_READ); -#endif -} - -void UnWriteProtectMemory(void* ptr, std::size_t size, bool allowExecute) { -#ifdef _WIN32 - DWORD oldValue; - if (!VirtualProtect(ptr, size, allowExecute ? PAGE_EXECUTE_READWRITE : PAGE_READWRITE, - &oldValue)) - LOG_ERROR(Common_Memory, "UnWriteProtectMemory failed!\n{}", GetLastErrorMsg()); -#else - mprotect(ptr, size, - allowExecute ? (PROT_READ | PROT_WRITE | PROT_EXEC) : PROT_WRITE | PROT_READ); -#endif -} - -std::string MemUsage() { -#ifdef _WIN32 -#pragma comment(lib, "psapi") - DWORD processID = GetCurrentProcessId(); - HANDLE hProcess; - PROCESS_MEMORY_COUNTERS pmc; - std::string Ret; - - // Print information about the memory usage of the process. - - hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, processID); - if (nullptr == hProcess) - return "MemUsage Error"; - - if (GetProcessMemoryInfo(hProcess, &pmc, sizeof(pmc))) - Ret = fmt::format("{} K", Common::ThousandSeparate(pmc.WorkingSetSize / 1024, 7)); - - CloseHandle(hProcess); - return Ret; -#else - return ""; -#endif -} |