8241587: Aarch64: remove x86 specifics from os_linux.cpp/hpp/inline.hpp

Reviewed-by: dholmes
This commit is contained in:
Stuart Monteith 2020-04-10 09:41:20 +08:00
parent 455d2e7cea
commit ca46bba505
3 changed files with 1 additions and 50 deletions

@ -462,12 +462,6 @@ int os::Linux::get_fpu_control_word(void) {
void os::Linux::set_fpu_control_word(int fpu_control) {
}
// Check that the linux kernel version is 2.4 or higher since earlier
// versions do not support SSE without patches.
bool os::supports_sse() {
return true;
}
bool os::is_allocatable(size_t bytes) {
return true;
}

@ -1,5 +1,5 @@
/*
* Copyright (c) 1999, 2019, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1999, 2020, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2014, Red Hat Inc. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
@ -27,9 +27,6 @@
#define OS_CPU_LINUX_AARCH64_OS_LINUX_AARCH64_HPP
static void setup_fpu();
static bool supports_sse();
static jlong rdtsc();
static bool is_allocatable(size_t bytes);

@ -1,40 +0,0 @@
/*
* Copyright (c) 2011, 2019, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2014, Red Hat 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*
*/
#ifndef OS_CPU_LINUX_AARCH64_OS_LINUX_AARCH64_INLINE_HPP
#define OS_CPU_LINUX_AARCH64_OS_LINUX_AARCH64_INLINE_HPP
#include "runtime/os.hpp"
// See http://www.technovelty.org/code/c/reading-rdtsc.htl for details
inline jlong os::rdtsc() {
uint64_t res;
uint32_t ts1, ts2;
__asm__ __volatile__ ("rdtsc" : "=a" (ts1), "=d" (ts2));
res = ((uint64_t)ts1 | (uint64_t)ts2 << 32);
return (jlong)res;
}
#endif // OS_CPU_LINUX_AARCH64_OS_LINUX_AARCH64_INLINE_HPP