mirror of
https://github.com/dolphin-emu/dolphin.git
synced 2024-11-14 21:37:52 -07:00
191 lines
4.2 KiB
C++
191 lines
4.2 KiB
C++
// Copyright 2008 Dolphin Emulator Project
|
|
// Licensed under GPLv2+
|
|
// Refer to the license.txt file included.
|
|
|
|
#include <cstddef>
|
|
#include <cstdlib>
|
|
#include <string>
|
|
|
|
#include "Common/CommonFuncs.h"
|
|
#include "Common/CommonTypes.h"
|
|
#include "Common/MemoryUtil.h"
|
|
#include "Common/MsgHandler.h"
|
|
#include "Common/Logging/Log.h"
|
|
|
|
#ifdef _WIN32
|
|
#include <windows.h>
|
|
#include <psapi.h>
|
|
#include "Common/StringUtil.h"
|
|
#else
|
|
#include <stdio.h>
|
|
#include <sys/mman.h>
|
|
#include <sys/types.h>
|
|
#ifdef __APPLE__
|
|
#include <sys/sysctl.h>
|
|
#else
|
|
#include <sys/sysinfo.h>
|
|
#endif
|
|
#endif
|
|
|
|
void* AllocateExecutableMemory(size_t size, void* map_hint)
|
|
{
|
|
#if defined(_WIN32)
|
|
void* ptr = VirtualAlloc(0, size, MEM_COMMIT, PAGE_EXECUTE_READWRITE);
|
|
#else
|
|
void* ptr = mmap(map_hint, size, PROT_READ | PROT_WRITE | PROT_EXEC,
|
|
MAP_ANON | MAP_PRIVATE, -1, 0);
|
|
#endif /* defined(_WIN32) */
|
|
|
|
#ifdef _WIN32
|
|
if (ptr == nullptr)
|
|
#else
|
|
if (ptr == MAP_FAILED)
|
|
#endif
|
|
{
|
|
ptr = nullptr;
|
|
PanicAlert("Failed to allocate executable memory.");
|
|
}
|
|
|
|
#ifdef _X86_64
|
|
ptrdiff_t ofs = (u8*)ptr - (u8*)map_hint;
|
|
if (ofs < -0x80000000ll || ofs + size > 0x80000000ll)
|
|
PanicAlert("Executable range can't be used for RIP-relative addressing.");
|
|
#endif
|
|
|
|
return ptr;
|
|
}
|
|
|
|
void* AllocateMemoryPages(size_t size)
|
|
{
|
|
#ifdef _WIN32
|
|
void* ptr = VirtualAlloc(0, 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)
|
|
PanicAlert("Failed to allocate raw memory");
|
|
|
|
return ptr;
|
|
}
|
|
|
|
void* AllocateAlignedMemory(size_t size, size_t alignment)
|
|
{
|
|
void* ptr = nullptr;
|
|
#ifdef _WIN32
|
|
if (!(ptr = _aligned_malloc(size, alignment)))
|
|
#else
|
|
if (posix_memalign(&ptr, alignment, size))
|
|
#endif
|
|
PanicAlert("Failed to allocate aligned memory");
|
|
|
|
return ptr;
|
|
}
|
|
|
|
void FreeMemoryPages(void* ptr, size_t size)
|
|
{
|
|
#ifdef _WIN32
|
|
if (ptr && !VirtualFree(ptr, 0, MEM_RELEASE))
|
|
#else
|
|
if (ptr && munmap(ptr, size))
|
|
#endif
|
|
PanicAlert("FreeMemoryPages failed!\n%s", GetLastErrorMsg().c_str());
|
|
}
|
|
|
|
void FreeAlignedMemory(void* ptr)
|
|
{
|
|
if (ptr)
|
|
{
|
|
#ifdef _WIN32
|
|
_aligned_free(ptr);
|
|
#else
|
|
free(ptr);
|
|
#endif
|
|
}
|
|
}
|
|
|
|
void ReadProtectMemory(void* ptr, size_t size)
|
|
{
|
|
#ifdef _WIN32
|
|
DWORD oldValue;
|
|
if (!VirtualProtect(ptr, size, PAGE_NOACCESS, &oldValue))
|
|
#else
|
|
if (mprotect(ptr, size, PROT_NONE))
|
|
#endif
|
|
PanicAlert("ReadProtectMemory failed!\n%s", GetLastErrorMsg().c_str());
|
|
}
|
|
|
|
void WriteProtectMemory(void* ptr, size_t size, bool allowExecute)
|
|
{
|
|
#ifdef _WIN32
|
|
DWORD oldValue;
|
|
if (!VirtualProtect(ptr, size, allowExecute ? PAGE_EXECUTE_READ : PAGE_READONLY, &oldValue))
|
|
#else
|
|
if (mprotect(ptr, size, PROT_READ | (allowExecute ? PROT_EXEC : 0)))
|
|
#endif
|
|
PanicAlert("WriteProtectMemory failed!\n%s", GetLastErrorMsg().c_str());
|
|
}
|
|
|
|
void UnWriteProtectMemory(void* ptr, size_t size, bool allowExecute)
|
|
{
|
|
#ifdef _WIN32
|
|
DWORD oldValue;
|
|
if (!VirtualProtect(ptr, size, allowExecute ? PAGE_EXECUTE_READWRITE : PAGE_READWRITE, &oldValue))
|
|
#else
|
|
if (mprotect(ptr, size, PROT_READ | PROT_WRITE | (allowExecute ? PROT_EXEC : 0)))
|
|
#endif
|
|
PanicAlert("UnWriteProtectMemory failed!\n%s", GetLastErrorMsg().c_str());
|
|
}
|
|
|
|
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 = StringFromFormat("%s K", ThousandSeparate(pmc.WorkingSetSize / 1024, 7).c_str());
|
|
|
|
CloseHandle(hProcess);
|
|
return Ret;
|
|
#else
|
|
return "";
|
|
#endif
|
|
}
|
|
|
|
|
|
size_t MemPhysical()
|
|
{
|
|
#ifdef _WIN32
|
|
MEMORYSTATUSEX memInfo;
|
|
memInfo.dwLength = sizeof(MEMORYSTATUSEX);
|
|
GlobalMemoryStatusEx(&memInfo);
|
|
return memInfo.ullTotalPhys;
|
|
#elif defined(__APPLE__)
|
|
int mib[2];
|
|
size_t physical_memory;
|
|
mib[0] = CTL_HW;
|
|
mib[1] = HW_MEMSIZE;
|
|
size_t length = sizeof(size_t);
|
|
sysctl(mib, 2, &physical_memory, &length, NULL, 0);
|
|
return physical_memory;
|
|
#else
|
|
struct sysinfo memInfo;
|
|
sysinfo (&memInfo);
|
|
return (size_t)memInfo.totalram * memInfo.mem_unit;
|
|
#endif
|
|
}
|