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Various changes which improve FreeBSD support.

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Patches by martymac, all credits go to him ;)
This commit is contained in:
NeoBrainX
2011-08-27 20:42:11 +02:00
committed by NeoBrainX
parent 5d075ce507
commit 8c691767da
7 changed files with 66 additions and 8 deletions
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9
Source/Core/Common/Src/CPUDetect.cpp
View File

@ -32,6 +32,10 @@
//#include <config/i386/cpuid.h>
#include <xmmintrin.h>
#if defined __FreeBSD__
#include <sys/types.h>
#include <machine/cpufunc.h>
#else
static inline void do_cpuid(unsigned int *eax, unsigned int *ebx,
unsigned int *ecx, unsigned int *edx)
{
@ -65,15 +69,20 @@ static inline void do_cpuid(unsigned int *eax, unsigned int *ebx,
);
#endif
}
#endif /* defined __FreeBSD__ */
static void __cpuid(int info[4], int x)
{
#if defined __FreeBSD__
do_cpuid((unsigned int)x, (unsigned int*)info);
#else
unsigned int eax = x, ebx = 0, ecx = 0, edx = 0;
do_cpuid(&eax, &ebx, &ecx, &edx);
info[0] = eax;
info[1] = ebx;
info[2] = ecx;
info[3] = edx;
#endif
}
#endif

6
Source/Core/Common/Src/CommonFuncs.h
View File

@ -45,6 +45,8 @@ _mm_shuffle_epi8(__m128i a, __m128i mask)
#include <errno.h>
#ifdef __linux__
#include <byteswap.h>
#elif defined __FreeBSD__
#include <sys/endian.h>
#endif
// go to debugger mode
@ -137,6 +139,10 @@ inline __attribute__((always_inline)) u32 swap32(u32 _data)
{return __builtin_bswap32(_data);}
inline __attribute__((always_inline)) u64 swap64(u64 _data)
{return __builtin_bswap64(_data);}
#elif __FreeBSD__
inline u16 swap16(u16 _data) {return bswap16(_data);}
inline u32 swap32(u32 _data) {return bswap32(_data);}
inline u64 swap64(u64 _data) {return bswap64(_data);}
#else
// Slow generic implementation.
inline u16 swap16(u16 data) {return (data >> 8) | (data << 8);}

48
Source/Core/Common/Src/MemoryUtil.cpp
View File

@ -27,28 +27,64 @@
#include <stdio.h>
#endif
#if !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)
{
#ifdef _WIN32
static char *map_hint = 0;
#if defined(__x86_64__) && !defined(MAP_32BIT)
if (low && (!map_hint))
map_hint = (char*)round_page(512*1024*1024); /* 0.5 GB rounded up to the next page */
#endif
#if defined(_WIN32)
void* ptr = VirtualAlloc(0, size, MEM_COMMIT, PAGE_EXECUTE_READWRITE);
#else
void* ptr = mmap(0, size, PROT_READ | PROT_WRITE | PROT_EXEC,
void* ptr = mmap(map_hint, size, PROT_READ | PROT_WRITE | PROT_EXEC,
MAP_ANON | MAP_PRIVATE
#if defined __linux__ && defined __x86_64__
#if defined(__x86_64__)
#if defined(MAP_32BIT)
| (low ? MAP_32BIT : 0)
#endif
#else
| (low ? MAP_FIXED : 0)
#endif /* defined(MAP_32BIT) */
#endif /* defined(__x86_64__) */
, -1, 0);
#endif
#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");
#ifdef _M_X64
}
#if 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