Mercurial > hg > truffle
view src/os_cpu/solaris_sparc/vm/atomic_solaris_sparc.inline.hpp @ 7432:0b3d19153cc6
8001028: Improve GC option handling
Summary: If there are not enough native resources to create the ReferenceHandler or Finalizer Java threads, the VM will attempt to throw an OOME before the java.lang.Class class has been initialized. This can result in assertion failures and other crashes. Move the initialization of the java.lang.Class class to just before the initialization of the java.lang.ref.Finalizer class.
Reviewed-by: jwilhelm, dholmes, coleenp
author | johnc |
---|---|
date | Wed, 12 Dec 2012 12:07:32 -0800 |
parents | f7de3327c683 |
children | 63e54c37ac64 |
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/* * Copyright (c) 1999, 2011, 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_SPARC_VM_ATOMIC_SOLARIS_SPARC_INLINE_HPP #define OS_CPU_SOLARIS_SPARC_VM_ATOMIC_SOLARIS_SPARC_INLINE_HPP #include "orderAccess_solaris_sparc.inline.hpp" #include "runtime/atomic.hpp" #include "runtime/os.hpp" #include "vm_version_sparc.hpp" // Implementation of class atomic inline void Atomic::store (jbyte store_value, jbyte* dest) { *dest = store_value; } inline void Atomic::store (jshort store_value, jshort* dest) { *dest = store_value; } inline void Atomic::store (jint store_value, jint* dest) { *dest = store_value; } inline void Atomic::store_ptr(intptr_t store_value, intptr_t* dest) { *dest = store_value; } inline void Atomic::store_ptr(void* store_value, void* dest) { *(void**)dest = store_value; } inline void Atomic::store (jbyte store_value, volatile jbyte* dest) { *dest = store_value; } inline void Atomic::store (jshort store_value, volatile jshort* dest) { *dest = store_value; } inline void Atomic::store (jint store_value, volatile jint* dest) { *dest = store_value; } inline void Atomic::store_ptr(intptr_t store_value, volatile intptr_t* dest) { *dest = store_value; } inline void Atomic::store_ptr(void* store_value, volatile void* dest) { *(void* volatile *)dest = store_value; } inline void Atomic::inc (volatile jint* dest) { (void)add (1, dest); } inline void Atomic::inc_ptr(volatile intptr_t* dest) { (void)add_ptr(1, dest); } inline void Atomic::inc_ptr(volatile void* dest) { (void)add_ptr(1, dest); } inline void Atomic::dec (volatile jint* dest) { (void)add (-1, dest); } inline void Atomic::dec_ptr(volatile intptr_t* dest) { (void)add_ptr(-1, dest); } inline void Atomic::dec_ptr(volatile void* dest) { (void)add_ptr(-1, dest); } #ifdef _LP64 inline void Atomic::store(jlong store_value, jlong* dest) { *dest = store_value; } inline void Atomic::store(jlong store_value, volatile jlong* dest) { *dest = store_value; } inline jlong Atomic::load(volatile jlong* src) { return *src; } #else extern "C" void _Atomic_move_long_v8(volatile jlong* src, volatile jlong* dst); extern "C" void _Atomic_move_long_v9(volatile jlong* src, volatile jlong* dst); inline void Atomic_move_long(volatile jlong* src, volatile jlong* dst) { #ifdef COMPILER2 // Compiler2 does not support v8, it is used only for v9. _Atomic_move_long_v9(src, dst); #else // The branch is cheaper then emulated LDD. if (VM_Version::v9_instructions_work()) { _Atomic_move_long_v9(src, dst); } else { _Atomic_move_long_v8(src, dst); } #endif } inline jlong Atomic::load(volatile jlong* src) { volatile jlong dest; Atomic_move_long(src, &dest); return dest; } inline void Atomic::store(jlong store_value, jlong* dest) { Atomic_move_long((volatile jlong*)&store_value, (volatile jlong*)dest); } inline void Atomic::store(jlong store_value, volatile jlong* dest) { Atomic_move_long((volatile jlong*)&store_value, dest); } #endif #ifdef _GNU_SOURCE inline jint Atomic::add (jint add_value, volatile jint* dest) { intptr_t rv; __asm__ volatile( "1: \n\t" " ld [%2], %%o2\n\t" " add %1, %%o2, %%o3\n\t" " cas [%2], %%o2, %%o3\n\t" " cmp %%o2, %%o3\n\t" " bne 1b\n\t" " nop\n\t" " add %1, %%o2, %0\n\t" : "=r" (rv) : "r" (add_value), "r" (dest) : "memory", "o2", "o3"); return rv; } inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) { intptr_t rv; #ifdef _LP64 __asm__ volatile( "1: \n\t" " ldx [%2], %%o2\n\t" " add %0, %%o2, %%o3\n\t" " casx [%2], %%o2, %%o3\n\t" " cmp %%o2, %%o3\n\t" " bne %%xcc, 1b\n\t" " nop\n\t" " add %0, %%o2, %0\n\t" : "=r" (rv) : "r" (add_value), "r" (dest) : "memory", "o2", "o3"); #else //_LP64 __asm__ volatile( "1: \n\t" " ld [%2], %%o2\n\t" " add %1, %%o2, %%o3\n\t" " cas [%2], %%o2, %%o3\n\t" " cmp %%o2, %%o3\n\t" " bne 1b\n\t" " nop\n\t" " add %1, %%o2, %0\n\t" : "=r" (rv) : "r" (add_value), "r" (dest) : "memory", "o2", "o3"); #endif // _LP64 return rv; } inline void* Atomic::add_ptr(intptr_t add_value, volatile void* dest) { return (void*)add_ptr((intptr_t)add_value, (volatile intptr_t*)dest); } inline jint Atomic::xchg (jint exchange_value, volatile jint* dest) { intptr_t rv = exchange_value; __asm__ volatile( " swap [%2],%1\n\t" : "=r" (rv) : "0" (exchange_value) /* we use same register as for return value */, "r" (dest) : "memory"); return rv; } inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) { intptr_t rv = exchange_value; #ifdef _LP64 __asm__ volatile( "1:\n\t" " mov %1, %%o3\n\t" " ldx [%2], %%o2\n\t" " casx [%2], %%o2, %%o3\n\t" " cmp %%o2, %%o3\n\t" " bne %%xcc, 1b\n\t" " nop\n\t" " mov %%o2, %0\n\t" : "=r" (rv) : "r" (exchange_value), "r" (dest) : "memory", "o2", "o3"); #else //_LP64 __asm__ volatile( "swap [%2],%1\n\t" : "=r" (rv) : "0" (exchange_value) /* we use same register as for return value */, "r" (dest) : "memory"); #endif // _LP64 return rv; } inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest) { return (void*)xchg_ptr((intptr_t)exchange_value, (volatile intptr_t*)dest); } inline jint Atomic::cmpxchg (jint exchange_value, volatile jint* dest, jint compare_value) { jint rv; __asm__ volatile( " cas [%2], %3, %0" : "=r" (rv) : "0" (exchange_value), "r" (dest), "r" (compare_value) : "memory"); return rv; } inline jlong Atomic::cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value) { #ifdef _LP64 jlong rv; __asm__ volatile( " casx [%2], %3, %0" : "=r" (rv) : "0" (exchange_value), "r" (dest), "r" (compare_value) : "memory"); return rv; #else //_LP64 assert(VM_Version::v9_instructions_work(), "cas only supported on v9"); volatile jlong_accessor evl, cvl, rv; evl.long_value = exchange_value; cvl.long_value = compare_value; __asm__ volatile( " sllx %2, 32, %2\n\t" " srl %3, 0, %3\n\t" " or %2, %3, %2\n\t" " sllx %5, 32, %5\n\t" " srl %6, 0, %6\n\t" " or %5, %6, %5\n\t" " casx [%4], %5, %2\n\t" " srl %2, 0, %1\n\t" " srlx %2, 32, %0\n\t" : "=r" (rv.words[0]), "=r" (rv.words[1]) : "r" (evl.words[0]), "r" (evl.words[1]), "r" (dest), "r" (cvl.words[0]), "r" (cvl.words[1]) : "memory"); return rv.long_value; #endif //_LP64 } inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value) { intptr_t rv; #ifdef _LP64 __asm__ volatile( " casx [%2], %3, %0" : "=r" (rv) : "0" (exchange_value), "r" (dest), "r" (compare_value) : "memory"); #else //_LP64 __asm__ volatile( " cas [%2], %3, %0" : "=r" (rv) : "0" (exchange_value), "r" (dest), "r" (compare_value) : "memory"); #endif // _LP64 return rv; } inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value) { return (void*)cmpxchg_ptr((intptr_t)exchange_value, (volatile intptr_t*)dest, (intptr_t)compare_value); } #else // _GNU_SOURCE #if defined(COMPILER2) || defined(_LP64) // This is the interface to the atomic instructions in solaris_sparc.il. // It's very messy because we need to support v8 and these instructions // are illegal there. When sparc v8 is dropped, we can drop out lots of // this code. Also compiler2 does not support v8 so the conditional code // omits the instruction set check. extern "C" jint _Atomic_swap32(jint exchange_value, volatile jint* dest); extern "C" intptr_t _Atomic_swap64(intptr_t exchange_value, volatile intptr_t* dest); extern "C" jint _Atomic_cas32(jint exchange_value, volatile jint* dest, jint compare_value); extern "C" intptr_t _Atomic_cas64(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value); extern "C" jlong _Atomic_casl (jlong exchange_value, volatile jlong* dest, jlong compare_value); extern "C" jint _Atomic_add32(jint inc, volatile jint* dest); extern "C" intptr_t _Atomic_add64(intptr_t add_value, volatile intptr_t* dest); inline jint Atomic::add (jint add_value, volatile jint* dest) { return _Atomic_add32(add_value, dest); } inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) { #ifdef _LP64 return _Atomic_add64(add_value, dest); #else //_LP64 return _Atomic_add32(add_value, dest); #endif // _LP64 } inline void* Atomic::add_ptr(intptr_t add_value, volatile void* dest) { return (void*)add_ptr((intptr_t)add_value, (volatile intptr_t*)dest); } inline jint Atomic::xchg (jint exchange_value, volatile jint* dest) { return _Atomic_swap32(exchange_value, dest); } inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) { #ifdef _LP64 return _Atomic_swap64(exchange_value, dest); #else // _LP64 return _Atomic_swap32(exchange_value, dest); #endif // _LP64 } inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest) { return (void*)xchg_ptr((intptr_t)exchange_value, (volatile intptr_t*)dest); } inline jint Atomic::cmpxchg (jint exchange_value, volatile jint* dest, jint compare_value) { return _Atomic_cas32(exchange_value, dest, compare_value); } inline jlong Atomic::cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value) { #ifdef _LP64 // Return 64 bit value in %o0 return _Atomic_cas64((intptr_t)exchange_value, (intptr_t *)dest, (intptr_t)compare_value); #else // _LP64 assert (VM_Version::v9_instructions_work(), "only supported on v9"); // Return 64 bit value in %o0,%o1 by hand return _Atomic_casl(exchange_value, dest, compare_value); #endif // _LP64 } inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value) { #ifdef _LP64 return _Atomic_cas64(exchange_value, dest, compare_value); #else // _LP64 return _Atomic_cas32(exchange_value, dest, compare_value); #endif // _LP64 } inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value) { return (void*)cmpxchg_ptr((intptr_t)exchange_value, (volatile intptr_t*)dest, (intptr_t)compare_value); } #else // _LP64 || COMPILER2 // 32-bit compiler1 only inline jint Atomic::add (jint add_value, volatile jint* dest) { return (*os::atomic_add_func)(add_value, dest); } inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) { return (intptr_t)add((jint)add_value, (volatile jint*)dest); } inline void* Atomic::add_ptr(intptr_t add_value, volatile void* dest) { return (void*)add((jint)add_value, (volatile jint*)dest); } inline jint Atomic::xchg (jint exchange_value, volatile jint* dest) { return (*os::atomic_xchg_func)(exchange_value, dest); } inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) { return (intptr_t)xchg((jint)exchange_value, (volatile jint*)dest); } inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest) { return (void*)xchg((jint)exchange_value, (volatile jint*)dest); } inline jint Atomic::cmpxchg (jint exchange_value, volatile jint* dest, jint compare_value) { return (*os::atomic_cmpxchg_func)(exchange_value, dest, compare_value); } inline jlong Atomic::cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value) { return (*os::atomic_cmpxchg_long_func)(exchange_value, dest, compare_value); } inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value) { return (intptr_t)cmpxchg((jint)exchange_value, (volatile jint*)dest, (jint)compare_value); } inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value) { return (void*)cmpxchg((jint)exchange_value, (volatile jint*)dest, (jint)compare_value); } #endif // _LP64 || COMPILER2 #endif // _GNU_SOURCE #endif // OS_CPU_SOLARIS_SPARC_VM_ATOMIC_SOLARIS_SPARC_INLINE_HPP