diff options
Diffstat (limited to 'contrib/llvm/tools/clang/lib/Headers/Intrin.h')
| -rw-r--r-- | contrib/llvm/tools/clang/lib/Headers/Intrin.h | 320 |
1 files changed, 275 insertions, 45 deletions
diff --git a/contrib/llvm/tools/clang/lib/Headers/Intrin.h b/contrib/llvm/tools/clang/lib/Headers/Intrin.h index 4376464..13e105e 100644 --- a/contrib/llvm/tools/clang/lib/Headers/Intrin.h +++ b/contrib/llvm/tools/clang/lib/Headers/Intrin.h @@ -30,31 +30,43 @@ #define __INTRIN_H /* First include the standard intrinsics. */ +#if defined(__i386__) || defined(__x86_64__) #include <x86intrin.h> +#endif + +/* For the definition of jmp_buf. */ +#if __STDC_HOSTED__ +#include <setjmp.h> +#endif #ifdef __cplusplus extern "C" { #endif +#if defined(__MMX__) /* And the random ones that aren't in those files. */ __m64 _m_from_float(float); __m64 _m_from_int(int _l); void _m_prefetch(void *); float _m_to_float(__m64); int _m_to_int(__m64 _M); +#endif /* Other assorted instruction intrinsics. */ void __addfsbyte(unsigned long, unsigned char); void __addfsdword(unsigned long, unsigned long); void __addfsword(unsigned long, unsigned short); void __code_seg(const char *); +static __inline__ void __cpuid(int[4], int); +static __inline__ void __cpuidex(int[4], int, int); void __debugbreak(void); __int64 __emul(int, int); unsigned __int64 __emulu(unsigned int, unsigned int); void __cdecl __fastfail(unsigned int); unsigned int __getcallerseflags(void); +static __inline__ void __halt(void); unsigned char __inbyte(unsigned short); void __inbytestring(unsigned short, unsigned char *, unsigned long); @@ -75,8 +87,11 @@ unsigned char __lwpins32(unsigned int, unsigned int, unsigned int); void __lwpval32(unsigned int, unsigned int, unsigned int); unsigned int __lzcnt(unsigned int); unsigned short __lzcnt16(unsigned short); +static __inline__ void __movsb(unsigned char *, unsigned char const *, size_t); +static __inline__ void __movsd(unsigned long *, unsigned long const *, size_t); +static __inline__ void __movsw(unsigned short *, unsigned short const *, size_t); void __nop(void); void __nvreg_restore_fence(void); @@ -91,26 +106,34 @@ static __inline__ unsigned int __popcnt(unsigned int); static __inline__ unsigned short __popcnt16(unsigned short); -unsigned __int64 __rdtsc(void); -unsigned __int64 __rdtscp(unsigned int *); unsigned long __readcr0(void); unsigned long __readcr2(void); +static __inline__ unsigned long __readcr3(void); -unsigned long __readcr5(void); +unsigned long __readcr4(void); unsigned long __readcr8(void); unsigned int __readdr(unsigned int); -unsigned int __readeflags(void); +#ifdef __i386__ +static __inline__ unsigned char __readfsbyte(unsigned long); +static __inline__ unsigned long __readfsdword(unsigned long); +static __inline__ unsigned __int64 __readfsqword(unsigned long); +static __inline__ unsigned short __readfsword(unsigned long); +#endif +static __inline__ unsigned __int64 __readmsr(unsigned long); unsigned __int64 __readpmc(unsigned long); unsigned long __segmentlimit(unsigned long); void __sidt(void *); void *__slwpcb(void); +static __inline__ void __stosb(unsigned char *, unsigned char, size_t); +static __inline__ void __stosd(unsigned long *, unsigned long, size_t); +static __inline__ void __stosw(unsigned short *, unsigned short, size_t); void __svm_clgi(void); void __svm_invlpga(void *, int); @@ -125,11 +148,11 @@ void __vmx_off(void); void __vmx_vmptrst(unsigned __int64 *); void __wbinvd(void); void __writecr0(unsigned int); +static __inline__ void __writecr3(unsigned int); void __writecr4(unsigned int); void __writecr8(unsigned int); void __writedr(unsigned int, unsigned int); -void __writeeflags(unsigned int); void __writefsbyte(unsigned long, unsigned char); void __writefsdword(unsigned long, unsigned long); void __writefsqword(unsigned long, unsigned __int64); @@ -139,7 +162,6 @@ static __inline__ void *_AddressOfReturnAddress(void); unsigned int _andn_u32(unsigned int, unsigned int); unsigned int _bextr_u32(unsigned int, unsigned int, unsigned int); -unsigned int _bextr_u32(unsigned int, unsigned int, unsigned int); unsigned int _bextri_u32(unsigned int, unsigned int); static __inline__ unsigned char _BitScanForward(unsigned long *_Index, unsigned long _Mask); @@ -162,8 +184,6 @@ unsigned int _blsfill_u32(unsigned int); unsigned int _blsi_u32(unsigned int); unsigned int _blsic_u32(unsigned int); unsigned int _blsmsk_u32(unsigned int); -unsigned int _blsmsk_u32(unsigned int); -unsigned int _blsr_u32(unsigned int); unsigned int _blsr_u32(unsigned int); unsigned __int64 __cdecl _byteswap_uint64(unsigned __int64); unsigned long __cdecl _byteswap_ulong(unsigned long); @@ -181,6 +201,7 @@ short _InterlockedAnd16(short volatile *_Value, short _Mask); static __inline__ char _InterlockedAnd8(char volatile *_Value, char _Mask); unsigned char _interlockedbittestandreset(long volatile *, long); +static __inline__ unsigned char _interlockedbittestandset(long volatile *, long); static __inline__ long __cdecl _InterlockedCompareExchange(long volatile *_Destination, @@ -208,8 +229,7 @@ static __inline__ long __cdecl _InterlockedDecrement(long volatile *_Addend); static __inline__ short _InterlockedDecrement16(short volatile *_Addend); -static __inline__ -long __cdecl _InterlockedExchange(long volatile *_Target, long _Value); +long _InterlockedExchange(long volatile *_Target, long _Value); static __inline__ short _InterlockedExchange16(short volatile *_Target, short _Value); static __inline__ @@ -219,6 +239,10 @@ long __cdecl _InterlockedExchangeAdd(long volatile *_Addend, long _Value); long _InterlockedExchangeAdd_HLEAcquire(long volatile *, long); long _InterlockedExchangeAdd_HLERelease(long volatile *, long); static __inline__ +short _InterlockedExchangeAdd16(short volatile *_Addend, short _Value); +__int64 _InterlockedExchangeAdd64_HLEAcquire(__int64 volatile *, __int64); +__int64 _InterlockedExchangeAdd64_HLERelease(__int64 volatile *, __int64); +static __inline__ char _InterlockedExchangeAdd8(char volatile *_Addend, char _Value); static __inline__ long __cdecl _InterlockedIncrement(long volatile *_Addend); @@ -269,10 +293,9 @@ unsigned __int64 __cdecl _rotr64(unsigned __int64 _Value, int _Shift); static __inline__ unsigned char _rotr8(unsigned char _Value, unsigned char _Shift); int _sarx_i32(int, unsigned int); - -/* FIXME: Need definition for jmp_buf. - int __cdecl _setjmp(jmp_buf); */ - +#if __STDC_HOSTED__ +int __cdecl _setjmp(jmp_buf); +#endif unsigned int _shlx_u32(unsigned int, unsigned int); unsigned int _shrx_u32(unsigned int, unsigned int); void _Store_HLERelease(long volatile *, long); @@ -280,13 +303,13 @@ void _Store64_HLERelease(__int64 volatile *, __int64); void _StorePointer_HLERelease(void *volatile *, void *); unsigned int _t1mskc_u32(unsigned int); unsigned int _tzcnt_u32(unsigned int); -unsigned int _tzcnt_u32(unsigned int); unsigned int _tzmsk_u32(unsigned int); static __inline__ void _WriteBarrier(void); void _xabort(const unsigned int imm); unsigned __int32 xbegin(void); void _xend(void); +static __inline__ unsigned __int64 __cdecl _xgetbv(unsigned int); void __cdecl _xrstor(void const *, unsigned __int64); void __cdecl _xsave(void *, unsigned __int64); @@ -300,19 +323,47 @@ void __addgsbyte(unsigned long, unsigned char); void __addgsdword(unsigned long, unsigned long); void __addgsqword(unsigned long, unsigned __int64); void __addgsword(unsigned long, unsigned short); +static __inline__ void __faststorefence(void); void __incgsbyte(unsigned long); void __incgsdword(unsigned long); void __incgsqword(unsigned long); void __incgsword(unsigned long); +unsigned char __lwpins64(unsigned __int64, unsigned int, unsigned int); +void __lwpval64(unsigned __int64, unsigned int, unsigned int); +unsigned __int64 __lzcnt64(unsigned __int64); +static __inline__ +void __movsq(unsigned long long *, unsigned long long const *, size_t); +__int64 __mulh(__int64, __int64); +static __inline__ unsigned __int64 __popcnt64(unsigned __int64); +static __inline__ +unsigned char __readgsbyte(unsigned long); +static __inline__ +unsigned long __readgsdword(unsigned long); +static __inline__ +unsigned __int64 __readgsqword(unsigned long); +unsigned short __readgsword(unsigned long); unsigned __int64 __shiftleft128(unsigned __int64 _LowPart, unsigned __int64 _HighPart, unsigned char _Shift); unsigned __int64 __shiftright128(unsigned __int64 _LowPart, unsigned __int64 _HighPart, unsigned char _Shift); +static __inline__ void __stosq(unsigned __int64 *, unsigned __int64, size_t); +unsigned __int64 __umulh(unsigned __int64, unsigned __int64); +unsigned char __vmx_on(unsigned __int64 *); +unsigned char __vmx_vmclear(unsigned __int64 *); +unsigned char __vmx_vmlaunch(void); +unsigned char __vmx_vmptrld(unsigned __int64 *); +unsigned char __vmx_vmread(size_t, size_t *); +unsigned char __vmx_vmresume(void); +unsigned char __vmx_vmwrite(size_t, size_t); +void __writegsbyte(unsigned long, unsigned char); +void __writegsdword(unsigned long, unsigned long); +void __writegsqword(unsigned long, unsigned __int64); +void __writegsword(unsigned long, unsigned short); unsigned __int64 _andn_u64(unsigned __int64, unsigned __int64); unsigned __int64 _bextr_u64(unsigned __int64, unsigned int, unsigned int); unsigned __int64 _bextri_u64(unsigned __int64, unsigned int); @@ -336,7 +387,7 @@ unsigned __int64 _blcs_u64(unsigned __int64); unsigned __int64 _blsfill_u64(unsigned __int64); unsigned __int64 _blsi_u64(unsigned __int64); unsigned __int64 _blsic_u64(unsigned __int64); -unsigned __int64 _blmsk_u64(unsigned __int64); +unsigned __int64 _blsmsk_u64(unsigned __int64); unsigned __int64 _blsr_u64(unsigned __int64); unsigned __int64 __cdecl _byteswap_uint64(unsigned __int64); unsigned __int64 _bzhi_u64(unsigned __int64, unsigned int); @@ -347,6 +398,7 @@ short _InterlockedAnd16_np(short volatile *_Value, short _Mask); __int64 _InterlockedAnd64_np(__int64 volatile *_Value, __int64 _Mask); char _InterlockedAnd8_np(char volatile *_Value, char _Mask); unsigned char _interlockedbittestandreset64(__int64 volatile *, __int64); +static __inline__ unsigned char _interlockedbittestandset64(__int64 volatile *, __int64); long _InterlockedCompareExchange_np(long volatile *_Destination, long _Exchange, long _Comparand); @@ -360,18 +412,38 @@ unsigned char _InterlockedCompareExchange128_np(__int64 volatile *_Destination, __int64 *_ComparandResult); short _InterlockedCompareExchange16_np(short volatile *_Destination, short _Exchange, short _Comparand); +__int64 _InterlockedCompareExchange64_HLEAcquire(__int64 volatile *, __int64, + __int64); +__int64 _InterlockedCompareExchange64_HLERelease(__int64 volatile *, __int64, + __int64); __int64 _InterlockedCompareExchange64_np(__int64 volatile *_Destination, __int64 _Exchange, __int64 _Comparand); +void *_InterlockedCompareExchangePointer(void *volatile *_Destination, + void *_Exchange, void *_Comparand); void *_InterlockedCompareExchangePointer_np(void *volatile *_Destination, void *_Exchange, void *_Comparand); +static __inline__ +__int64 _InterlockedDecrement64(__int64 volatile *_Addend); +static __inline__ +__int64 _InterlockedExchange64(__int64 volatile *_Target, __int64 _Value); +static __inline__ +__int64 _InterlockedExchangeAdd64(__int64 volatile *_Addend, __int64 _Value); +void *_InterlockedExchangePointer(void *volatile *_Target, void *_Value); +static __inline__ +__int64 _InterlockedIncrement64(__int64 volatile *_Addend); long _InterlockedOr_np(long volatile *_Value, long _Mask); short _InterlockedOr16_np(short volatile *_Value, short _Mask); +static __inline__ +__int64 _InterlockedOr64(__int64 volatile *_Value, __int64 _Mask); __int64 _InterlockedOr64_np(__int64 volatile *_Value, __int64 _Mask); char _InterlockedOr8_np(char volatile *_Value, char _Mask); long _InterlockedXor_np(long volatile *_Value, long _Mask); short _InterlockedXor16_np(short volatile *_Value, short _Mask); +static __inline__ +__int64 _InterlockedXor64(__int64 volatile *_Value, __int64 _Mask); __int64 _InterlockedXor64_np(__int64 volatile *_Value, __int64 _Mask); char _InterlockedXor8_np(char volatile *_Value, char _Mask); +static __inline__ unsigned __int64 _lzcnt_u64(unsigned __int64); __int64 _mul128(__int64 _Multiplier, __int64 _Multiplicand, __int64 *_HighProduct); @@ -380,6 +452,12 @@ unsigned __int64 __cdecl _readfsbase_u64(void); unsigned int __cdecl _readgsbase_u32(void); unsigned __int64 __cdecl _readgsbase_u64(void); unsigned __int64 _rorx_u64(unsigned __int64, const unsigned int); +__int64 _sarx_i64(__int64, unsigned int); +#if __STDC_HOSTED__ +int __cdecl _setjmpex(jmp_buf); +#endif +unsigned __int64 _shlx_u64(unsigned __int64, unsigned int); +unsigned __int64 shrx_u64(unsigned __int64, unsigned int); unsigned __int64 _tzcnt_u64(unsigned __int64); unsigned __int64 _tzmsk_u64(unsigned __int64); unsigned __int64 _umul128(unsigned __int64 _Multiplier, @@ -503,6 +581,18 @@ _bittestandset(long *a, long b) { *a = *a | (1 << b); return x; } +#if defined(__i386__) || defined(__x86_64__) +static __inline__ unsigned char __attribute__((__always_inline__, __nodebug__)) +_interlockedbittestandset(long volatile *__BitBase, long __BitPos) { + unsigned char __Res; + __asm__ ("xor %0, %0\n" + "lock bts %2, %1\n" + "setc %0\n" + : "=r" (__Res), "+m"(*__BitBase) + : "Ir"(__BitPos)); + return __Res; +} +#endif #ifdef __x86_64__ static __inline__ unsigned char __attribute__((__always_inline__, __nodebug__)) _BitScanForward64(unsigned long *_Index, unsigned __int64 _Mask) { @@ -552,6 +642,16 @@ _bittestandset64(__int64 *a, __int64 b) { *a = *a | (1ll << b); return x; } +static __inline__ unsigned char __attribute__((__always_inline__, __nodebug__)) +_interlockedbittestandset64(__int64 volatile *__BitBase, __int64 __BitPos) { + unsigned char __Res; + __asm__ ("xor %0, %0\n" + "lock bts %2, %1\n" + "setc %0\n" + : "=r" (__Res), "+m"(*__BitBase) + : "Ir"(__BitPos)); + return __Res; +} #endif /*----------------------------------------------------------------------------*\ |* Interlocked Exchange Add @@ -564,10 +664,6 @@ static __inline__ short __attribute__((__always_inline__, __nodebug__)) _InterlockedExchangeAdd16(short volatile *_Addend, short _Value) { return __atomic_add_fetch(_Addend, _Value, 0) - _Value; } -static __inline__ long __attribute__((__always_inline__, __nodebug__)) -_InterlockedExchangeAdd(long volatile *_Addend, long _Value) { - return __atomic_add_fetch(_Addend, _Value, 0) - _Value; -} #ifdef __x86_64__ static __inline__ __int64 __attribute__((__always_inline__, __nodebug__)) _InterlockedExchangeAdd64(__int64 volatile *_Addend, __int64 _Value) { @@ -598,12 +694,8 @@ _InterlockedExchangeSub64(__int64 volatile *_Subend, __int64 _Value) { /*----------------------------------------------------------------------------*\ |* Interlocked Increment \*----------------------------------------------------------------------------*/ -static __inline__ char __attribute__((__always_inline__, __nodebug__)) -_InterlockedIncrement16(char volatile *_Value) { - return __atomic_add_fetch(_Value, 1, 0); -} -static __inline__ long __attribute__((__always_inline__, __nodebug__)) -_InterlockedIncrement(long volatile *_Value) { +static __inline__ short __attribute__((__always_inline__, __nodebug__)) +_InterlockedIncrement16(short volatile *_Value) { return __atomic_add_fetch(_Value, 1, 0); } #ifdef __x86_64__ @@ -615,12 +707,8 @@ _InterlockedIncrement64(__int64 volatile *_Value) { /*----------------------------------------------------------------------------*\ |* Interlocked Decrement \*----------------------------------------------------------------------------*/ -static __inline__ char __attribute__((__always_inline__, __nodebug__)) -_InterlockedDecrement16(char volatile *_Value) { - return __atomic_sub_fetch(_Value, 1, 0); -} -static __inline__ long __attribute__((__always_inline__, __nodebug__)) -_InterlockedDecrement(long volatile *_Value) { +static __inline__ short __attribute__((__always_inline__, __nodebug__)) +_InterlockedDecrement16(short volatile *_Value) { return __atomic_sub_fetch(_Value, 1, 0); } #ifdef __x86_64__ @@ -705,11 +793,6 @@ _InterlockedExchange16(short volatile *_Target, short _Value) { __atomic_exchange(_Target, &_Value, &_Value, 0); return _Value; } -static __inline__ long __attribute__((__always_inline__, __nodebug__)) -_InterlockedExchange(long volatile *_Target, long _Value) { - __atomic_exchange(_Target, &_Value, &_Value, 0); - return _Value; -} #ifdef __x86_64__ static __inline__ __int64 __attribute__((__always_inline__, __nodebug__)) _InterlockedExchange64(__int64 volatile *_Target, __int64 _Value) { @@ -732,23 +815,16 @@ _InterlockedCompareExchange16(short volatile *_Destination, __atomic_compare_exchange(_Destination, &_Comparand, &_Exchange, 0, 0, 0); return _Comparand; } -static __inline__ long __attribute__((__always_inline__, __nodebug__)) -_InterlockedCompareExchange(long volatile *_Destination, - long _Exchange, long _Comparand) { - __atomic_compare_exchange(_Destination, &_Comparand, &_Exchange, 0, 0, 0); - return _Comparand; -} -#ifdef __x86_64__ static __inline__ __int64 __attribute__((__always_inline__, __nodebug__)) _InterlockedCompareExchange64(__int64 volatile *_Destination, __int64 _Exchange, __int64 _Comparand) { __atomic_compare_exchange(_Destination, &_Comparand, &_Exchange, 0, 0, 0); return _Comparand; } -#endif /*----------------------------------------------------------------------------*\ |* Barriers \*----------------------------------------------------------------------------*/ +#if defined(__i386__) || defined(__x86_64__) static __inline__ void __attribute__((__always_inline__, __nodebug__)) __attribute__((deprecated("use other intrinsics or C++11 atomics instead"))) _ReadWriteBarrier(void) { @@ -764,6 +840,107 @@ __attribute__((deprecated("use other intrinsics or C++11 atomics instead"))) _WriteBarrier(void) { __asm__ volatile ("" : : : "memory"); } +#endif +#ifdef __x86_64__ +static __inline__ void __attribute__((__always_inline__, __nodebug__)) +__faststorefence(void) { + __asm__ volatile("lock orq $0, (%%rsp)" : : : "memory"); +} +#endif +/*----------------------------------------------------------------------------*\ +|* readfs, readgs +|* (Pointers in address space #256 and #257 are relative to the GS and FS +|* segment registers, respectively.) +\*----------------------------------------------------------------------------*/ +#define __ptr_to_addr_space(__addr_space_nbr, __type, __offset) \ + ((volatile __type __attribute__((__address_space__(__addr_space_nbr)))*) \ + (__offset)) + +#ifdef __i386__ +static __inline__ unsigned char __attribute__((__always_inline__, __nodebug__)) +__readfsbyte(unsigned long __offset) { + return *__ptr_to_addr_space(257, unsigned char, __offset); +} +static __inline__ unsigned long __attribute__((__always_inline__, __nodebug__)) +__readfsdword(unsigned long __offset) { + return *__ptr_to_addr_space(257, unsigned long, __offset); +} +static __inline__ unsigned __int64 __attribute__((__always_inline__, __nodebug__)) +__readfsqword(unsigned long __offset) { + return *__ptr_to_addr_space(257, unsigned __int64, __offset); +} +static __inline__ unsigned short __attribute__((__always_inline__, __nodebug__)) +__readfsword(unsigned long __offset) { + return *__ptr_to_addr_space(257, unsigned short, __offset); +} +#endif +#ifdef __x86_64__ +static __inline__ unsigned char __attribute__((__always_inline__, __nodebug__)) +__readgsbyte(unsigned long __offset) { + return *__ptr_to_addr_space(256, unsigned char, __offset); +} +static __inline__ unsigned long __attribute__((__always_inline__, __nodebug__)) +__readgsdword(unsigned long __offset) { + return *__ptr_to_addr_space(256, unsigned long, __offset); +} +static __inline__ unsigned __int64 __attribute__((__always_inline__, __nodebug__)) +__readgsqword(unsigned long __offset) { + return *__ptr_to_addr_space(256, unsigned __int64, __offset); +} +static __inline__ unsigned short __attribute__((__always_inline__, __nodebug__)) +__readgsword(unsigned long __offset) { + return *__ptr_to_addr_space(256, unsigned short, __offset); +} +#endif +#undef __ptr_to_addr_space +/*----------------------------------------------------------------------------*\ +|* movs, stos +\*----------------------------------------------------------------------------*/ +#if defined(__i386__) || defined(__x86_64__) +static __inline__ void __attribute__((__always_inline__, __nodebug__)) +__movsb(unsigned char *__dst, unsigned char const *__src, size_t __n) { + __asm__("rep movsb" : : "D"(__dst), "S"(__src), "c"(__n) + : "%edi", "%esi", "%ecx"); +} +static __inline__ void __attribute__((__always_inline__, __nodebug__)) +__movsd(unsigned long *__dst, unsigned long const *__src, size_t __n) { + __asm__("rep movsl" : : "D"(__dst), "S"(__src), "c"(__n) + : "%edi", "%esi", "%ecx"); +} +static __inline__ void __attribute__((__always_inline__, __nodebug__)) +__movsw(unsigned short *__dst, unsigned short const *__src, size_t __n) { + __asm__("rep movsh" : : "D"(__dst), "S"(__src), "c"(__n) + : "%edi", "%esi", "%ecx"); +} +static __inline__ void __attribute__((__always_inline__, __nodebug__)) +__stosb(unsigned char *__dst, unsigned char __x, size_t __n) { + __asm__("rep stosb" : : "D"(__dst), "a"(__x), "c"(__n) + : "%edi", "%ecx"); +} +static __inline__ void __attribute__((__always_inline__, __nodebug__)) +__stosd(unsigned long *__dst, unsigned long __x, size_t __n) { + __asm__("rep stosl" : : "D"(__dst), "a"(__x), "c"(__n) + : "%edi", "%ecx"); +} +static __inline__ void __attribute__((__always_inline__, __nodebug__)) +__stosw(unsigned short *__dst, unsigned short __x, size_t __n) { + __asm__("rep stosh" : : "D"(__dst), "a"(__x), "c"(__n) + : "%edi", "%ecx"); +} +#endif +#ifdef __x86_64__ +static __inline__ void __attribute__((__always_inline__, __nodebug__)) +__movsq(unsigned long long *__dst, unsigned long long const *__src, size_t __n) { + __asm__("rep movsq" : : "D"(__dst), "S"(__src), "c"(__n) + : "%edi", "%esi", "%ecx"); +} +static __inline__ void __attribute__((__always_inline__, __nodebug__)) +__stosq(unsigned __int64 *__dst, unsigned __int64 __x, size_t __n) { + __asm__("rep stosq" : : "D"(__dst), "a"(__x), "c"(__n) + : "%edi", "%ecx"); +} +#endif + /*----------------------------------------------------------------------------*\ |* Misc \*----------------------------------------------------------------------------*/ @@ -775,6 +952,59 @@ static __inline__ void * __attribute__((__always_inline__, __nodebug__)) _ReturnAddress(void) { return __builtin_return_address(0); } +#if defined(__i386__) || defined(__x86_64__) +static __inline__ void __attribute__((__always_inline__, __nodebug__)) +__cpuid(int __info[4], int __level) { + __asm__ ("cpuid" : "=a"(__info[0]), "=b" (__info[1]), "=c"(__info[2]), "=d"(__info[3]) + : "a"(__level)); +} +static __inline__ void __attribute__((__always_inline__, __nodebug__)) +__cpuidex(int __info[4], int __level, int __ecx) { + __asm__ ("cpuid" : "=a"(__info[0]), "=b" (__info[1]), "=c"(__info[2]), "=d"(__info[3]) + : "a"(__level), "c"(__ecx)); +} +static __inline__ unsigned __int64 __cdecl __attribute__((__always_inline__, __nodebug__)) +_xgetbv(unsigned int __xcr_no) { + unsigned int __eax, __edx; + __asm__ ("xgetbv" : "=a" (__eax), "=d" (__edx) : "c" (__xcr_no)); + return ((unsigned __int64)__edx << 32) | __eax; +} +static __inline__ void __attribute__((__always_inline__, __nodebug__)) +__halt(void) { + __asm__ volatile ("hlt"); +} +#endif + +/*----------------------------------------------------------------------------*\ +|* Privileged intrinsics +\*----------------------------------------------------------------------------*/ +#if defined(__i386__) || defined(__x86_64__) +static __inline__ unsigned __int64 __attribute__((__always_inline__, __nodebug__)) +__readmsr(unsigned long __register) { + // Loads the contents of a 64-bit model specific register (MSR) specified in + // the ECX register into registers EDX:EAX. The EDX register is loaded with + // the high-order 32 bits of the MSR and the EAX register is loaded with the + // low-order 32 bits. If less than 64 bits are implemented in the MSR being + // read, the values returned to EDX:EAX in unimplemented bit locations are + // undefined. + unsigned long __edx; + unsigned long __eax; + __asm__ ("rdmsr" : "=d"(__edx), "=a"(__eax) : "c"(__register)); + return (((unsigned __int64)__edx) << 32) | (unsigned __int64)__eax; +} + +static __inline__ unsigned long __attribute__((always_inline, __nodebug__)) +__readcr3(void) { + unsigned long __cr3_val; + __asm__ __volatile__ ("mov %%cr3, %0" : "=q"(__cr3_val) : : "memory"); + return __cr3_val; +} + +static __inline__ void __attribute__((always_inline, __nodebug__)) +__writecr3(unsigned int __cr3_val) { + __asm__ ("mov %0, %%cr3" : : "q"(__cr3_val) : "memory"); +} +#endif #ifdef __cplusplus } |
