| Index: third_party/sqlite/src/hwtime.h
|
| ===================================================================
|
| --- third_party/sqlite/src/hwtime.h (revision 56608)
|
| +++ third_party/sqlite/src/hwtime.h (working copy)
|
| @@ -1,87 +0,0 @@
|
| -/*
|
| -** 2008 May 27
|
| -**
|
| -** The author disclaims copyright to this source code. In place of
|
| -** a legal notice, here is a blessing:
|
| -**
|
| -** May you do good and not evil.
|
| -** May you find forgiveness for yourself and forgive others.
|
| -** May you share freely, never taking more than you give.
|
| -**
|
| -******************************************************************************
|
| -**
|
| -** This file contains inline asm code for retrieving "high-performance"
|
| -** counters for x86 class CPUs.
|
| -**
|
| -** $Id: hwtime.h,v 1.3 2008/08/01 14:33:15 shane Exp $
|
| -*/
|
| -#ifndef _HWTIME_H_
|
| -#define _HWTIME_H_
|
| -
|
| -/*
|
| -** The following routine only works on pentium-class (or newer) processors.
|
| -** It uses the RDTSC opcode to read the cycle count value out of the
|
| -** processor and returns that value. This can be used for high-res
|
| -** profiling.
|
| -*/
|
| -#if (defined(__GNUC__) || defined(_MSC_VER)) && \
|
| - (defined(i386) || defined(__i386__) || defined(_M_IX86))
|
| -
|
| - #if defined(__GNUC__)
|
| -
|
| - __inline__ sqlite_uint64 sqlite3Hwtime(void){
|
| - unsigned int lo, hi;
|
| - __asm__ __volatile__ ("rdtsc" : "=a" (lo), "=d" (hi));
|
| - return (sqlite_uint64)hi << 32 | lo;
|
| - }
|
| -
|
| - #elif defined(_MSC_VER)
|
| -
|
| - __declspec(naked) __inline sqlite_uint64 __cdecl sqlite3Hwtime(void){
|
| - __asm {
|
| - rdtsc
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| - ret ; return value at EDX:EAX
|
| - }
|
| - }
|
| -
|
| - #endif
|
| -
|
| -#elif (defined(__GNUC__) && defined(__x86_64__))
|
| -
|
| - __inline__ sqlite_uint64 sqlite3Hwtime(void){
|
| - unsigned long val;
|
| - __asm__ __volatile__ ("rdtsc" : "=A" (val));
|
| - return val;
|
| - }
|
| -
|
| -#elif (defined(__GNUC__) && defined(__ppc__))
|
| -
|
| - __inline__ sqlite_uint64 sqlite3Hwtime(void){
|
| - unsigned long long retval;
|
| - unsigned long junk;
|
| - __asm__ __volatile__ ("\n\
|
| - 1: mftbu %1\n\
|
| - mftb %L0\n\
|
| - mftbu %0\n\
|
| - cmpw %0,%1\n\
|
| - bne 1b"
|
| - : "=r" (retval), "=r" (junk));
|
| - return retval;
|
| - }
|
| -
|
| -#else
|
| -
|
| - #error Need implementation of sqlite3Hwtime() for your platform.
|
| -
|
| - /*
|
| - ** To compile without implementing sqlite3Hwtime() for your platform,
|
| - ** you can remove the above #error and use the following
|
| - ** stub function. You will lose timing support for many
|
| - ** of the debugging and testing utilities, but it should at
|
| - ** least compile and run.
|
| - */
|
| - sqlite_uint64 sqlite3Hwtime(void){ return ((sqlite_uint64)0); }
|
| -
|
| -#endif
|
| -
|
| -#endif /* !defined(_HWTIME_H_) */
|
|
|