diff options
Diffstat (limited to 'Source/Core/Common/Src/MemoryUtil.cpp')
| -rw-r--r-- | Source/Core/Common/Src/MemoryUtil.cpp | 270 |
1 files changed, 135 insertions, 135 deletions
diff --git a/Source/Core/Common/Src/MemoryUtil.cpp b/Source/Core/Common/Src/MemoryUtil.cpp index 0099158872..10cf448f06 100644 --- a/Source/Core/Common/Src/MemoryUtil.cpp +++ b/Source/Core/Common/Src/MemoryUtil.cpp @@ -1,135 +1,135 @@ -// Copyright (C) 2003-2008 Dolphin Project.
-
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, version 2.0.
-
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU General Public License 2.0 for more details.
-
-// A copy of the GPL 2.0 should have been included with the program.
-// If not, see http://www.gnu.org/licenses/
-
-// Official SVN repository and contact information can be found at
-// http://code.google.com/p/dolphin-emu/
-
-#include "Common.h"
-#include "MemoryUtil.h"
-
-#ifdef _WIN32
-#include <windows.h>
-#elif __GNUC__
-#include <sys/mman.h>
-#include <errno.h>
-#include <stdio.h>
-#endif
-
-#if !defined(MAP_ANONYMOUS) && defined(MAP_ANON)
-#define MAP_ANONYMOUS MAP_ANON
-#endif
-
-// MacOSX does not support MAP_VARIABLE
-#ifndef MAP_VARIABLE
-#define MAP_VARIABLE 0
-#endif
-
-// This is purposedely not a full wrapper for virtualalloc/mmap, but it
-// provides exactly the primitive operations that Dolphin needs.
-
-void* AllocateExecutableMemory(int size, bool low)
-{
-#ifdef _WIN32
- void* ptr = VirtualAlloc(0, size, MEM_COMMIT, PAGE_EXECUTE_READWRITE);
-
- if ((u64)ptr >= 0x80000000)
- {
- PanicAlert("Executable memory ended up above 2GB!");
- // If this happens, we have to implement a free ram search scheme. ector knows how.
- }
-
- return(ptr);
-
-#else
- void* retval = mmap(0, size, PROT_READ | PROT_WRITE | PROT_EXEC,
- MAP_ANONYMOUS | MAP_PRIVATE
-#ifdef __x86_64__
- | (low ? MAP_32BIT : 0)
-#endif
- , -1, 0); // | MAP_FIXED
- // printf("Mapped executable memory at %p (size %i)\n", retval, size);
-
- if (!retval)
- {
- PanicAlert("Failed to allocate executable memory, errno=%i", errno);
- }
-
- return(retval);
-#endif
-
-}
-
-
-void* AllocateMemoryPages(int size)
-{
-#ifdef _WIN32
- void* ptr = VirtualAlloc(0, size, MEM_COMMIT, PAGE_READWRITE);
-
- if (!ptr)
- {
- PanicAlert("Failed to allocate raw memory");
- }
-
- return(ptr);
-
-#else
- void* retval = mmap(0, size, PROT_READ | PROT_WRITE,
- MAP_ANONYMOUS | MAP_PRIVATE, -1, 0); // | MAP_FIXED
- // printf("Mapped memory at %p (size %i)\n", retval, size);
-
- if (!retval)
- {
- PanicAlert("Failed to allocate raw memory, errno=%i", errno);
- }
-
- return(retval);
-#endif
-
-}
-
-
-void FreeMemoryPages(void* ptr, int size)
-{
-#ifdef _WIN32
- if (ptr)
- {
- VirtualFree(ptr, 0, MEM_RELEASE);
- ptr = NULL;
- }
-#else
- munmap(ptr, size);
-#endif
-}
-
-
-void WriteProtectMemory(void* ptr, int size, bool allowExecute)
-{
-#ifdef _WIN32
- VirtualProtect(ptr, size, allowExecute ? PAGE_EXECUTE_READ : PAGE_READONLY, 0);
-#else
- mprotect(ptr, size, allowExecute ? (PROT_READ | PROT_EXEC) : PROT_READ);
-#endif
-}
-
-
-void UnWriteProtectMemory(void* ptr, int size, bool allowExecute)
-{
-#ifdef _WIN32
- VirtualProtect(ptr, size, allowExecute ? PAGE_EXECUTE_READWRITE : PAGE_READONLY, 0);
-#else
- mprotect(ptr, size, allowExecute ? (PROT_READ | PROT_WRITE | PROT_EXEC) : PROT_WRITE | PROT_READ);
-#endif
-}
-
-
+// Copyright (C) 2003-2008 Dolphin Project. + +// This program is free software: you can redistribute it and/or modify +// it under the terms of the GNU General Public License as published by +// the Free Software Foundation, version 2.0. + +// This program is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License 2.0 for more details. + +// A copy of the GPL 2.0 should have been included with the program. +// If not, see http://www.gnu.org/licenses/ + +// Official SVN repository and contact information can be found at +// http://code.google.com/p/dolphin-emu/ + +#include "Common.h" +#include "MemoryUtil.h" + +#ifdef _WIN32 +#include <windows.h> +#elif __GNUC__ +#include <sys/mman.h> +#include <errno.h> +#include <stdio.h> +#endif + +#if !defined(MAP_ANONYMOUS) && defined(MAP_ANON) +#define MAP_ANONYMOUS MAP_ANON +#endif + +// MacOSX does not support MAP_VARIABLE +#ifndef MAP_VARIABLE +#define MAP_VARIABLE 0 +#endif + +// This is purposedely not a full wrapper for virtualalloc/mmap, but it +// provides exactly the primitive operations that Dolphin needs. + +void* AllocateExecutableMemory(int size, bool low) +{ +#ifdef _WIN32 + void* ptr = VirtualAlloc(0, size, MEM_COMMIT, PAGE_EXECUTE_READWRITE); + + if ((u64)ptr >= 0x80000000) + { + PanicAlert("Executable memory ended up above 2GB!"); + // If this happens, we have to implement a free ram search scheme. ector knows how. + } + + return(ptr); + +#else + void* retval = mmap(0, size, PROT_READ | PROT_WRITE | PROT_EXEC, + MAP_ANONYMOUS | MAP_PRIVATE +#ifdef __x86_64__ + | (low ? MAP_32BIT : 0) +#endif + , -1, 0); // | MAP_FIXED + // printf("Mapped executable memory at %p (size %i)\n", retval, size); + + if (!retval) + { + PanicAlert("Failed to allocate executable memory, errno=%i", errno); + } + + return(retval); +#endif + +} + + +void* AllocateMemoryPages(int size) +{ +#ifdef _WIN32 + void* ptr = VirtualAlloc(0, size, MEM_COMMIT, PAGE_READWRITE); + + if (!ptr) + { + PanicAlert("Failed to allocate raw memory"); + } + + return(ptr); + +#else + void* retval = mmap(0, size, PROT_READ | PROT_WRITE, + MAP_ANONYMOUS | MAP_PRIVATE, -1, 0); // | MAP_FIXED + // printf("Mapped memory at %p (size %i)\n", retval, size); + + if (!retval) + { + PanicAlert("Failed to allocate raw memory, errno=%i", errno); + } + + return(retval); +#endif + +} + + +void FreeMemoryPages(void* ptr, int size) +{ +#ifdef _WIN32 + if (ptr) + { + VirtualFree(ptr, 0, MEM_RELEASE); + ptr = NULL; + } +#else + munmap(ptr, size); +#endif +} + + +void WriteProtectMemory(void* ptr, int size, bool allowExecute) +{ +#ifdef _WIN32 + VirtualProtect(ptr, size, allowExecute ? PAGE_EXECUTE_READ : PAGE_READONLY, 0); +#else + mprotect(ptr, size, allowExecute ? (PROT_READ | PROT_EXEC) : PROT_READ); +#endif +} + + +void UnWriteProtectMemory(void* ptr, int size, bool allowExecute) +{ +#ifdef _WIN32 + VirtualProtect(ptr, size, allowExecute ? PAGE_EXECUTE_READWRITE : PAGE_READONLY, 0); +#else + mprotect(ptr, size, allowExecute ? (PROT_READ | PROT_WRITE | PROT_EXEC) : PROT_WRITE | PROT_READ); +#endif +} + + |
