Mercurial > hg > truffle
view src/os_cpu/linux_x86/vm/bytes_linux_x86.inline.hpp @ 1483:ba37b9335e1e
New option "-graal" that sets up the correct boot class path and C1X options using only the two environment variables MAXINE and GRAAL.
This greatly simplifies command line arguments necessary to start the Graal VM.
author | Thomas Wuerthinger <wuerthinger@ssw.jku.at> |
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date | Mon, 29 Nov 2010 16:58:26 +0100 |
parents | d1605aabd0a1 |
children | c18cbe5936b8 |
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/* * Copyright 1999-2008 Sun Microsystems, Inc. All Rights Reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code 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 * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ #include <byteswap.h> // Efficient swapping of data bytes from Java byte // ordering to native byte ordering and vice versa. inline u2 Bytes::swap_u2(u2 x) { #ifdef AMD64 return bswap_16(x); #else u2 ret; __asm__ __volatile__ ( "movw %0, %%ax;" "xchg %%al, %%ah;" "movw %%ax, %0" :"=r" (ret) // output : register 0 => ret :"0" (x) // input : x => register 0 :"ax", "0" // clobbered registers ); return ret; #endif // AMD64 } inline u4 Bytes::swap_u4(u4 x) { #ifdef AMD64 return bswap_32(x); #else u4 ret; __asm__ __volatile__ ( "bswap %0" :"=r" (ret) // output : register 0 => ret :"0" (x) // input : x => register 0 :"0" // clobbered register ); return ret; #endif // AMD64 } #ifdef AMD64 inline u8 Bytes::swap_u8(u8 x) { #ifdef SPARC_WORKS // workaround for SunStudio12 CR6615391 __asm__ __volatile__ ( "bswapq %0" :"=r" (x) // output : register 0 => x :"0" (x) // input : x => register 0 :"0" // clobbered register ); return x; #else return bswap_64(x); #endif } #else // Helper function for swap_u8 inline u8 Bytes::swap_u8_base(u4 x, u4 y) { return (((u8)swap_u4(x))<<32) | swap_u4(y); } inline u8 Bytes::swap_u8(u8 x) { return swap_u8_base(*(u4*)&x, *(((u4*)&x)+1)); } #endif // !AMD64