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-rw-r--r--Source/Core/Common/MemoryUtil.cpp397
1 files changed, 198 insertions, 199 deletions
diff --git a/Source/Core/Common/MemoryUtil.cpp b/Source/Core/Common/MemoryUtil.cpp
index cc6d569036..cfdc3ad730 100644
--- a/Source/Core/Common/MemoryUtil.cpp
+++ b/Source/Core/Common/MemoryUtil.cpp
@@ -1,199 +1,198 @@
-// Copyright 2013 Dolphin Emulator Project
-// Licensed under GPLv2
-// Refer to the license.txt file included.
-
-#include <cstddef>
-#include <cstdlib>
-#include <string>
-
-#include "Common/Common.h"
-
-#ifdef _WIN32
-#include <windows.h>
-#include <psapi.h>
-#include "Common/StringUtil.h"
-#else
-#include <stdio.h>
-#include <sys/mman.h>
-#endif
-
-#if !defined(_WIN32) && defined(__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(size_t size, bool low)
-{
-#if defined(_WIN32)
- void* ptr = VirtualAlloc(0, size, MEM_COMMIT, PAGE_EXECUTE_READWRITE);
-#else
- static char *map_hint = 0;
-#if defined(__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(__x86_64__) && defined(MAP_32BIT)
- | (low ? MAP_32BIT : 0)
-#endif
- , -1, 0);
-#endif /* defined(_WIN32) */
-
- // printf("Mapped executable memory at %p (size %ld)\n", ptr,
- // (unsigned long)size);
-
-#if defined(__FreeBSD__)
- if (ptr == MAP_FAILED)
- {
- ptr = NULL;
-#else
- if (ptr == NULL)
- {
-#endif
- PanicAlert("Failed to allocate executable memory");
- }
-#if !defined(_WIN32) && defined(__x86_64__) && !defined(MAP_32BIT)
- else
- {
- if (low)
- {
- map_hint += size;
- map_hint = (char*)round_page(map_hint); /* round up to the next page */
- // printf("Next map will (hopefully) be at %p\n", map_hint);
- }
- }
-#endif
-
-#if defined(_M_X64)
- if ((u64)ptr >= 0x80000000 && low == true)
- PanicAlert("Executable memory ended up above 2GB!");
-#endif
-
- return ptr;
-}
-
-void* AllocateMemoryPages(size_t size)
-{
-#ifdef _WIN32
- void* ptr = VirtualAlloc(0, size, MEM_COMMIT, PAGE_READWRITE);
-#else
- void* ptr = mmap(0, size, PROT_READ | PROT_WRITE,
- MAP_ANON | MAP_PRIVATE, -1, 0);
-#endif
-
- // printf("Mapped memory at %p (size %ld)\n", ptr,
- // (unsigned long)size);
-
- if (ptr == NULL)
- PanicAlert("Failed to allocate raw memory");
-
- return ptr;
-}
-
-void* AllocateAlignedMemory(size_t size,size_t alignment)
-{
-#ifdef _WIN32
- void* ptr = _aligned_malloc(size,alignment);
-#else
- void* ptr = NULL;
-#ifdef ANDROID
- ptr = memalign(alignment, size);
-#else
- if (posix_memalign(&ptr, alignment, size) != 0)
- ERROR_LOG(MEMMAP, "Failed to allocate aligned memory");
-#endif
-#endif
-
- // printf("Mapped memory at %p (size %ld)\n", ptr,
- // (unsigned long)size);
-
- if (ptr == NULL)
- PanicAlert("Failed to allocate aligned memory");
-
- return ptr;
-}
-
-void FreeMemoryPages(void* ptr, size_t size)
-{
- if (ptr)
- {
-#ifdef _WIN32
-
- if (!VirtualFree(ptr, 0, MEM_RELEASE))
- PanicAlert("FreeMemoryPages failed!\n%s", GetLastErrorMsg());
- ptr = NULL; // Is this our responsibility?
-
-#else
- munmap(ptr, size);
-#endif
- }
-}
-
-void FreeAlignedMemory(void* ptr)
-{
- if (ptr)
- {
-#ifdef _WIN32
- _aligned_free(ptr);
-#else
- free(ptr);
-#endif
- }
-}
-
-void WriteProtectMemory(void* ptr, size_t size, bool allowExecute)
-{
-#ifdef _WIN32
- DWORD oldValue;
- if (!VirtualProtect(ptr, size, allowExecute ? PAGE_EXECUTE_READ : PAGE_READONLY, &oldValue))
- PanicAlert("WriteProtectMemory failed!\n%s", GetLastErrorMsg());
-#else
- mprotect(ptr, size, allowExecute ? (PROT_READ | PROT_EXEC) : PROT_READ);
-#endif
-}
-
-void UnWriteProtectMemory(void* ptr, size_t size, bool allowExecute)
-{
-#ifdef _WIN32
- DWORD oldValue;
- if (!VirtualProtect(ptr, size, allowExecute ? PAGE_EXECUTE_READWRITE : PAGE_READWRITE, &oldValue))
- PanicAlert("UnWriteProtectMemory failed!\n%s", 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 (NULL == 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
-}
+// Copyright 2013 Dolphin Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+
+#include <cstddef>
+#include <cstdlib>
+#include <string>
+
+#include "Common/Common.h"
+
+#ifdef _WIN32
+#include <windows.h>
+#include <psapi.h>
+#include "Common/StringUtil.h"
+#else
+#include <stdio.h>
+#include <sys/mman.h>
+#endif
+
+#if !defined(_WIN32) && defined(__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(size_t size, bool low)
+{
+#if defined(_WIN32)
+ void* ptr = VirtualAlloc(0, size, MEM_COMMIT, PAGE_EXECUTE_READWRITE);
+#else
+ static char *map_hint = 0;
+#if defined(__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(__x86_64__) && defined(MAP_32BIT)
+ | (low ? MAP_32BIT : 0)
+#endif
+ , -1, 0);
+#endif /* defined(_WIN32) */
+
+ // printf("Mapped executable memory at %p (size %ld)\n", ptr,
+ // (unsigned long)size);
+
+#if defined(__FreeBSD__)
+ if (ptr == MAP_FAILED)
+ {
+ ptr = NULL;
+#else
+ if (ptr == NULL)
+ {
+#endif
+ PanicAlert("Failed to allocate executable memory");
+ }
+#if !defined(_WIN32) && defined(__x86_64__) && !defined(MAP_32BIT)
+ else
+ {
+ if (low)
+ {
+ map_hint += size;
+ map_hint = (char*)round_page(map_hint); /* round up to the next page */
+ // printf("Next map will (hopefully) be at %p\n", map_hint);
+ }
+ }
+#endif
+
+#if defined(_M_X64)
+ if ((u64)ptr >= 0x80000000 && low == true)
+ PanicAlert("Executable memory ended up above 2GB!");
+#endif
+
+ return ptr;
+}
+
+void* AllocateMemoryPages(size_t size)
+{
+#ifdef _WIN32
+ void* ptr = VirtualAlloc(0, size, MEM_COMMIT, PAGE_READWRITE);
+#else
+ void* ptr = mmap(0, size, PROT_READ | PROT_WRITE,
+ MAP_ANON | MAP_PRIVATE, -1, 0);
+#endif
+
+ // printf("Mapped memory at %p (size %ld)\n", ptr,
+ // (unsigned long)size);
+
+ if (ptr == NULL)
+ PanicAlert("Failed to allocate raw memory");
+
+ return ptr;
+}
+
+void* AllocateAlignedMemory(size_t size,size_t alignment)
+{
+#ifdef _WIN32
+ void* ptr = _aligned_malloc(size,alignment);
+#else
+ void* ptr = NULL;
+#ifdef ANDROID
+ ptr = memalign(alignment, size);
+#else
+ if (posix_memalign(&ptr, alignment, size) != 0)
+ ERROR_LOG(MEMMAP, "Failed to allocate aligned memory");
+#endif
+#endif
+
+ // printf("Mapped memory at %p (size %ld)\n", ptr,
+ // (unsigned long)size);
+
+ if (ptr == NULL)
+ PanicAlert("Failed to allocate aligned memory");
+
+ return ptr;
+}
+
+void FreeMemoryPages(void* ptr, size_t size)
+{
+ if (ptr)
+ {
+#ifdef _WIN32
+ if (!VirtualFree(ptr, 0, MEM_RELEASE))
+ {
+ PanicAlert("FreeMemoryPages failed!\n%s", 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, size_t size, bool allowExecute)
+{
+#ifdef _WIN32
+ DWORD oldValue;
+ if (!VirtualProtect(ptr, size, allowExecute ? PAGE_EXECUTE_READ : PAGE_READONLY, &oldValue))
+ PanicAlert("WriteProtectMemory failed!\n%s", GetLastErrorMsg());
+#else
+ mprotect(ptr, size, allowExecute ? (PROT_READ | PROT_EXEC) : PROT_READ);
+#endif
+}
+
+void UnWriteProtectMemory(void* ptr, size_t size, bool allowExecute)
+{
+#ifdef _WIN32
+ DWORD oldValue;
+ if (!VirtualProtect(ptr, size, allowExecute ? PAGE_EXECUTE_READWRITE : PAGE_READWRITE, &oldValue))
+ PanicAlert("UnWriteProtectMemory failed!\n%s", 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 (NULL == 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
+}