src/os_cpu/solaris_x86/vm/threadLS_solaris_x86.hpp

Thu, 16 Feb 2012 17:12:49 -0800

author
kvn
date
Thu, 16 Feb 2012 17:12:49 -0800
changeset 3577
9b8ce46870df
parent 2314
f95d63e2154a
child 6876
710a3c8b516e
child 8187
3ad3f93fe3d2
permissions
-rw-r--r--

7145346: VerifyStackAtCalls is broken
Summary: Replace call_epilog() encoding with macroassembler use. Moved duplicated code to x86.ad. Fixed return_addr() definition.
Reviewed-by: never

     1 /*
     2  * Copyright (c) 1998, 2010, Oracle and/or its affiliates. All rights reserved.
     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     4  *
     5  * This code is free software; you can redistribute it and/or modify it
     6  * under the terms of the GNU General Public License version 2 only, as
     7  * published by the Free Software Foundation.
     8  *
     9  * This code is distributed in the hope that it will be useful, but WITHOUT
    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    12  * version 2 for more details (a copy is included in the LICENSE file that
    13  * accompanied this code).
    14  *
    15  * You should have received a copy of the GNU General Public License version
    16  * 2 along with this work; if not, write to the Free Software Foundation,
    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    18  *
    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    20  * or visit www.oracle.com if you need additional information or have any
    21  * questions.
    22  *
    23  */
    25 #ifndef OS_CPU_SOLARIS_X86_VM_THREADLS_SOLARIS_X86_HPP
    26 #define OS_CPU_SOLARIS_X86_VM_THREADLS_SOLARIS_X86_HPP
    28 // Processor dependent parts of ThreadLocalStorage
    30 private:
    31   static Thread* _get_thread_cache[];  // index by [(raw_id>>9)^(raw_id>>20) % _pd_cache_size]
    32   static Thread* get_thread_via_cache_slowly(uintptr_t raw_id, int index);
    34   NOT_PRODUCT(static int _tcacheHit;)
    35   NOT_PRODUCT(static int _tcacheMiss;)
    37 public:
    38   // Cache hit/miss statistics
    39   static void print_statistics() PRODUCT_RETURN;
    41   enum Constants {
    42 #ifdef AMD64
    43     _pd_cache_size         =  256*2   // projected typical # of threads * 2
    44 #else
    45     _pd_cache_size         =  128*2   // projected typical # of threads * 2
    46 #endif // AMD64
    47   };
    49   enum pd_tlsAccessMode {
    50      pd_tlsAccessUndefined      = -1,
    51      pd_tlsAccessSlow           = 0,
    52      pd_tlsAccessIndirect       = 1,
    53      pd_tlsAccessDirect         = 2
    54   } ;
    56   static void set_thread_in_slot (Thread *) ;
    58   static pd_tlsAccessMode pd_getTlsAccessMode () ;
    59   static ptrdiff_t pd_getTlsOffset () ;
    61   static uintptr_t pd_raw_thread_id() {
    62 #ifdef _GNU_SOURCE
    63 #ifdef AMD64
    64     uintptr_t rv;
    65     __asm__ __volatile__ ("movq %%fs:0, %0" : "=r"(rv));
    66     return rv;
    67 #else
    68     return gs_thread();
    69 #endif // AMD64
    70 #else  //_GNU_SOURCE
    71     return _raw_thread_id();
    72 #endif //_GNU_SOURCE
    73   }
    75   static int pd_cache_index(uintptr_t raw_id) {
    76     // Copied from the sparc version. Dave said it should also work fine
    77     // for solx86.
    78     int ix = (int) (((raw_id >> 9) ^ (raw_id >> 20)) % _pd_cache_size);
    79     return ix;
    80   }
    82   // Java Thread
    83   static inline Thread* thread();
    85 #endif // OS_CPU_SOLARIS_X86_VM_THREADLS_SOLARIS_X86_HPP

mercurial