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/*
* Copyright (c) 1998, 2010, Oracle and/or its affiliates. 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_SOLARIS_X86_VM_THREADLS_SOLARIS_X86_HPP
#define OS_CPU_SOLARIS_X86_VM_THREADLS_SOLARIS_X86_HPP
// Processor dependent parts of ThreadLocalStorage
private:
static Thread* _get_thread_cache[]; // index by [(raw_id>>9)^(raw_id>>20) % _pd_cache_size]
static Thread* get_thread_via_cache_slowly(uintptr_t raw_id, int index);
NOT_PRODUCT(static int _tcacheHit;)
NOT_PRODUCT(static int _tcacheMiss;)
public:
// Cache hit/miss statistics
static void print_statistics() PRODUCT_RETURN;
enum Constants {
#ifdef AMD64
_pd_cache_size = 256*2 // projected typical # of threads * 2
#else
_pd_cache_size = 128*2 // projected typical # of threads * 2
#endif // AMD64
};
enum pd_tlsAccessMode {
pd_tlsAccessUndefined = -1,
pd_tlsAccessSlow = 0,
pd_tlsAccessIndirect = 1,
pd_tlsAccessDirect = 2
} ;
static void set_thread_in_slot (Thread *) ;
static pd_tlsAccessMode pd_getTlsAccessMode () ;
static ptrdiff_t pd_getTlsOffset () ;
static uintptr_t pd_raw_thread_id() {
#ifdef _GNU_SOURCE
#ifdef AMD64
uintptr_t rv;
__asm__ __volatile__ ("movq %%fs:0, %0" : "=r"(rv));
return rv;
#else
return gs_thread();
#endif // AMD64
#else //_GNU_SOURCE
return _raw_thread_id();
#endif //_GNU_SOURCE
}
static int pd_cache_index(uintptr_t raw_id) {
// Copied from the sparc version. Dave said it should also work fine
// for solx86.
int ix = (int) (((raw_id >> 9) ^ (raw_id >> 20)) % _pd_cache_size);
return ix;
}
// Java Thread
static inline Thread* thread();
#endif // OS_CPU_SOLARIS_X86_VM_THREADLS_SOLARIS_X86_HPP
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