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d025d63fd6
I just removed Externals/polarssl/, added the new version, then deleted the following files/directories: DartConfiguration.tcl Makefile doxygen/ library/Makefile programs/ scripts/ tests/ visualc/
314 lines
6.6 KiB
C
314 lines
6.6 KiB
C
/*
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* Portable interface to the CPU cycle counter
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*
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* Copyright (C) 2006-2010, Brainspark B.V.
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*
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* This file is part of PolarSSL (http://www.polarssl.org)
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* Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
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*
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* All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "polarssl/config.h"
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#if defined(POLARSSL_TIMING_C)
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#include "polarssl/timing.h"
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#if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32)
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#include <windows.h>
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#include <winbase.h>
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struct _hr_time
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{
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LARGE_INTEGER start;
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};
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#else
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/time.h>
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#include <signal.h>
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#include <time.h>
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struct _hr_time
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{
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struct timeval start;
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};
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#endif
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#if !defined(POLARSSL_HAVE_HARDCLOCK) && defined(POLARSSL_HAVE_ASM) && \
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(defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__)
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#define POLARSSL_HAVE_HARDCLOCK
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unsigned long hardclock( void )
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{
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unsigned long tsc;
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__asm rdtsc
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__asm mov [tsc], eax
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return( tsc );
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}
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#endif
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#if !defined(POLARSSL_HAVE_HARDCLOCK) && defined(POLARSSL_HAVE_ASM) && \
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defined(__GNUC__) && defined(__i386__)
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#define POLARSSL_HAVE_HARDCLOCK
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unsigned long hardclock( void )
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{
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unsigned long lo, hi;
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asm( "rdtsc" : "=a" (lo), "=d" (hi) );
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return( lo );
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}
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#endif
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#if !defined(POLARSSL_HAVE_HARDCLOCK) && defined(POLARSSL_HAVE_ASM) && \
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defined(__GNUC__) && (defined(__amd64__) || defined(__x86_64__))
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#define POLARSSL_HAVE_HARDCLOCK
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unsigned long hardclock( void )
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{
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unsigned long lo, hi;
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asm( "rdtsc" : "=a" (lo), "=d" (hi) );
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return( lo | (hi << 32) );
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}
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#endif
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#if !defined(POLARSSL_HAVE_HARDCLOCK) && defined(POLARSSL_HAVE_ASM) && \
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defined(__GNUC__) && (defined(__powerpc__) || defined(__ppc__))
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#define POLARSSL_HAVE_HARDCLOCK
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unsigned long hardclock( void )
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{
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unsigned long tbl, tbu0, tbu1;
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do
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{
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asm( "mftbu %0" : "=r" (tbu0) );
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asm( "mftb %0" : "=r" (tbl ) );
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asm( "mftbu %0" : "=r" (tbu1) );
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}
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while( tbu0 != tbu1 );
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return( tbl );
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}
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#endif
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#if !defined(POLARSSL_HAVE_HARDCLOCK) && defined(POLARSSL_HAVE_ASM) && \
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defined(__GNUC__) && defined(__sparc64__)
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#if defined(__OpenBSD__)
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#warning OpenBSD does not allow access to tick register using software version instead
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#else
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#define POLARSSL_HAVE_HARDCLOCK
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unsigned long hardclock( void )
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{
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unsigned long tick;
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asm( "rdpr %%tick, %0;" : "=&r" (tick) );
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return( tick );
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}
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#endif
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#endif
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#if !defined(POLARSSL_HAVE_HARDCLOCK) && defined(POLARSSL_HAVE_ASM) && \
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defined(__GNUC__) && defined(__sparc__) && !defined(__sparc64__)
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#define POLARSSL_HAVE_HARDCLOCK
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unsigned long hardclock( void )
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{
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unsigned long tick;
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asm( ".byte 0x83, 0x41, 0x00, 0x00" );
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asm( "mov %%g1, %0" : "=r" (tick) );
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return( tick );
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}
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#endif
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#if !defined(POLARSSL_HAVE_HARDCLOCK) && defined(POLARSSL_HAVE_ASM) && \
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defined(__GNUC__) && defined(__alpha__)
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#define POLARSSL_HAVE_HARDCLOCK
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unsigned long hardclock( void )
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{
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unsigned long cc;
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asm( "rpcc %0" : "=r" (cc) );
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return( cc & 0xFFFFFFFF );
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}
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#endif
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#if !defined(POLARSSL_HAVE_HARDCLOCK) && defined(POLARSSL_HAVE_ASM) && \
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defined(__GNUC__) && defined(__ia64__)
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#define POLARSSL_HAVE_HARDCLOCK
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unsigned long hardclock( void )
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{
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unsigned long itc;
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asm( "mov %0 = ar.itc" : "=r" (itc) );
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return( itc );
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}
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#endif
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#if !defined(POLARSSL_HAVE_HARDCLOCK) && defined(_MSC_VER) && \
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!defined(EFIX64) && !defined(EFI32)
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#define POLARSSL_HAVE_HARDCLOCK
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unsigned long hardclock( void )
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{
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LARGE_INTEGER offset;
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QueryPerformanceCounter( &offset );
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return (unsigned long)( offset.QuadPart );
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}
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#endif
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#if !defined(POLARSSL_HAVE_HARDCLOCK)
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#define POLARSSL_HAVE_HARDCLOCK
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static int hardclock_init = 0;
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static struct timeval tv_init;
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unsigned long hardclock( void )
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{
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struct timeval tv_cur;
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if( hardclock_init == 0 )
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{
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gettimeofday( &tv_init, NULL );
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hardclock_init = 1;
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}
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gettimeofday( &tv_cur, NULL );
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return( ( tv_cur.tv_sec - tv_init.tv_sec ) * 1000000
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+ ( tv_cur.tv_usec - tv_init.tv_usec ) );
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}
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#endif
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volatile int alarmed = 0;
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#if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32)
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unsigned long get_timer( struct hr_time *val, int reset )
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{
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unsigned long delta;
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LARGE_INTEGER offset, hfreq;
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struct _hr_time *t = (struct _hr_time *) val;
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QueryPerformanceCounter( &offset );
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QueryPerformanceFrequency( &hfreq );
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delta = (unsigned long)( ( 1000 *
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( offset.QuadPart - t->start.QuadPart ) ) /
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hfreq.QuadPart );
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if( reset )
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QueryPerformanceCounter( &t->start );
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return( delta );
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}
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DWORD WINAPI TimerProc( LPVOID uElapse )
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{
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Sleep( (DWORD) uElapse );
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alarmed = 1;
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return( TRUE );
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}
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void set_alarm( int seconds )
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{
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DWORD ThreadId;
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alarmed = 0;
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CloseHandle( CreateThread( NULL, 0, TimerProc,
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(LPVOID) ( seconds * 1000 ), 0, &ThreadId ) );
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}
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void m_sleep( int milliseconds )
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{
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Sleep( milliseconds );
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}
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#else
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unsigned long get_timer( struct hr_time *val, int reset )
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{
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unsigned long delta;
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struct timeval offset;
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struct _hr_time *t = (struct _hr_time *) val;
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gettimeofday( &offset, NULL );
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delta = ( offset.tv_sec - t->start.tv_sec ) * 1000
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+ ( offset.tv_usec - t->start.tv_usec ) / 1000;
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if( reset )
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{
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t->start.tv_sec = offset.tv_sec;
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t->start.tv_usec = offset.tv_usec;
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}
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return( delta );
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}
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#if defined(INTEGRITY)
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void m_sleep( int milliseconds )
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{
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usleep( milliseconds * 1000 );
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}
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#else
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static void sighandler( int signum )
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{
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alarmed = 1;
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signal( signum, sighandler );
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}
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void set_alarm( int seconds )
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{
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alarmed = 0;
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signal( SIGALRM, sighandler );
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alarm( seconds );
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}
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void m_sleep( int milliseconds )
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{
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struct timeval tv;
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tv.tv_sec = milliseconds / 1000;
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tv.tv_usec = milliseconds * 1000;
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select( 0, NULL, NULL, NULL, &tv );
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}
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#endif /* INTEGRITY */
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#endif
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#endif
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