author | stefank |
Mon, 25 Nov 2019 12:33:15 +0100 | |
changeset 59252 | 623722a6aeb9 |
parent 59251 | 4cbfa5077d68 |
permissions | -rw-r--r-- |
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// |
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// Copyright (c) 2004, 2015, Oracle and/or its affiliates. All rights reserved. |
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// DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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// |
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// This code is free software; you can redistribute it and/or modify it |
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// under the terms of the GNU General Public License version 2 only, as |
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// published by the Free Software Foundation. |
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// |
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// This code is distributed in the hope that it will be useful, but WITHOUT |
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// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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// version 2 for more details (a copy is included in the LICENSE file that |
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// accompanied this code). |
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// |
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// You should have received a copy of the GNU General Public License version |
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// 2 along with this work; if not, write to the Free Software Foundation, |
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// Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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// |
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// Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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// or visit www.oracle.com if you need additional information or have any |
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// questions. |
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// |
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// |
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// The argument size of each inline directive is ignored by the compiler |
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// and is set to the number of arguments as documentation. |
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// Get the raw thread ID from %gs:0 |
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.inline _raw_thread_id,0 |
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movq %fs:0, %rax |
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.end |
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// Get current sp |
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.inline _get_current_sp,0 |
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.volatile |
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movq %rsp, %rax |
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.end |
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// Get current fp |
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.inline _get_current_fp,0 |
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.volatile |
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movq %rbp, %rax |
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.end |
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// Support for os::rdtsc() |
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.inline _raw_rdtsc,0 |
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rdtsc |
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salq $32, %rdx |
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orq %rdx, %rax |
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.end |
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// Implementation of jint _Atomic_add(jint add_value, volatile jint* dest) |
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// used by Atomic::add(volatile jint* dest, jint add_value) |
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.inline _Atomic_add,2 |
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movl %edi, %eax // save add_value for return |
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lock |
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xaddl %edi, (%rsi) |
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addl %edi, %eax |
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.end |
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// Implementation of jlong _Atomic_add(jlong add_value, volatile jlong* dest) |
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// used by Atomic::add(volatile jlong* dest, jint add_value) |
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.inline _Atomic_add_long,2 |
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movq %rdi, %rax // save add_value for return |
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lock |
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xaddq %rdi, (%rsi) |
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addq %rdi, %rax |
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.end |
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// Implementation of jint _Atomic_xchg(jint exchange_value, volatile jint* dest) |
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// used by Atomic::xchg(volatile jint* dest, jint exchange_value) |
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.inline _Atomic_xchg,2 |
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xchgl (%rsi), %edi |
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movl %edi, %eax |
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.end |
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// Implementation of jlong _Atomic_xchg(jlong exchange_value, volatile jlong* dest) |
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// used by Atomic::xchg(volatile jlong* dest, jlong exchange_value) |
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.inline _Atomic_xchg_long,2 |
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xchgq (%rsi), %rdi |
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movq %rdi, %rax |
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.end |
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// Support for jbyte Atomic::cmpxchg(volatile jbyte *dest, |
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// jbyte compare_value, |
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// jbyte exchange_value) |
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.inline _Atomic_cmpxchg_byte,3 |
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movb %dl, %al // compare_value |
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lock |
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cmpxchgb %dil, (%rsi) |
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.end |
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// Support for jint Atomic::cmpxchg(volatile jint *dest, |
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// int compare_value, |
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// jint exchange_value) |
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.inline _Atomic_cmpxchg,3 |
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movl %edx, %eax // compare_value |
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cmpxchgl %edi, (%rsi) |
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.end |
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// Support for jlong Atomic::cmpxchg(volatile jlong* dest, |
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// jlong compare_value, |
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// jlong exchange_value) |
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.inline _Atomic_cmpxchg_long,3 |
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movq %rdx, %rax // compare_value |
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cmpxchgq %rdi, (%rsi) |
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.end |
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// Support for u2 Bytes::swap_u2(u2 x) |
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.inline _raw_swap_u2,1 |
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movw %di, %ax |
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rorw $8, %ax |
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.end |
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// Support for u4 Bytes::swap_u4(u4 x) |
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.inline _raw_swap_u4,1 |
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movl %edi, %eax |
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bswapl %eax |
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.end |
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// Support for u8 Bytes::swap_u8(u8 x) |
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.inline _raw_swap_u8,1 |
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movq %rdi, %rax |
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bswapq %rax |
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.end |
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// Support for void Prefetch::read |
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.inline _Prefetch_read,2 |
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prefetcht0 (%rdi, %rsi, 1) |
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.end |
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// Support for void Prefetch::write |
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// We use prefetcht0 because em64t doesn't support prefetchw. |
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// prefetchw is a 3dnow instruction. |
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.inline _Prefetch_write,2 |
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prefetcht0 (%rdi, %rsi, 1) |
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.end |