stubRoutines.hpp revision 4141
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* 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.
*
*/
#include "code/codeBlob.hpp"
#include "memory/allocation.hpp"
#include "runtime/mutexLocker.hpp"
#include "runtime/stubCodeGenerator.hpp"
#ifdef TARGET_ARCH_x86
# include "nativeInst_x86.hpp"
#endif
#ifdef TARGET_ARCH_sparc
# include "nativeInst_sparc.hpp"
#endif
#ifdef TARGET_ARCH_zero
# include "nativeInst_zero.hpp"
#endif
#ifdef TARGET_ARCH_arm
# include "nativeInst_arm.hpp"
#endif
#ifdef TARGET_ARCH_ppc
# include "nativeInst_ppc.hpp"
#endif
// StubRoutines provides entry points to assembly routines used by
// compiled code and the run-time system. Platform-specific entry
// points are defined in the platform-specific inner class.
//
// Class scheme:
//
// platform-independent platform-dependent
//
// stubRoutines.hpp <-- included -- stubRoutines_<arch>.hpp
// ^ ^
// | |
// implements implements
// | |
// | |
// stubRoutines.cpp stubRoutines_<arch>.cpp
// stubRoutines_<os_family>.cpp stubGenerator_<arch>.cpp
// stubRoutines_<os_arch>.cpp
//
// Note 1: The important thing is a clean decoupling between stub
// entry points (interfacing to the whole vm; i.e., 1-to-n
// relationship) and stub generators (interfacing only to
// the entry points implementation; i.e., 1-to-1 relationship).
// This significantly simplifies changes in the generator
// structure since the rest of the vm is not affected.
//
// Note 2: stubGenerator_<arch>.cpp contains a minimal portion of
// machine-independent code; namely the generator calls of
// the generator functions that are used platform-independently.
// However, it comes with the advantage of having a 1-file
// implementation of the generator. It should be fairly easy
// to change, should it become a problem later.
//
// Scheme for adding a new entry point:
//
// 1. determine if it's a platform-dependent or independent entry point
// a) if platform independent: make subsequent changes in the independent files
// b) if platform dependent: make subsequent changes in the dependent files
// 2. add a private instance variable holding the entry point address
// 3. add a public accessor function to the instance variable
// 4. implement the corresponding generator function in the platform-dependent
// stubGenerator_<arch>.cpp file and call the function in generate_all() of that file
class StubRoutines: AllStatic {
public:
};
// Dependencies
friend class StubGenerator;
#ifdef TARGET_ARCH_MODEL_x86_32
# include "stubRoutines_x86_32.hpp"
#endif
#ifdef TARGET_ARCH_MODEL_x86_64
# include "stubRoutines_x86_64.hpp"
#endif
#ifdef TARGET_ARCH_MODEL_sparc
# include "stubRoutines_sparc.hpp"
#endif
#ifdef TARGET_ARCH_MODEL_zero
# include "stubRoutines_zero.hpp"
#endif
#ifdef TARGET_ARCH_MODEL_arm
# include "stubRoutines_arm.hpp"
#endif
#ifdef TARGET_ARCH_MODEL_ppc
# include "stubRoutines_ppc.hpp"
#endif
static jint _verify_oop_count;
static address _verify_oop_subroutine_entry;
static address _call_stub_entry;
static address _forward_exception_entry;
static address _catch_exception_entry;
static address _atomic_xchg_entry;
static address _atomic_xchg_ptr_entry;
static address _atomic_store_entry;
static address _atomic_store_ptr_entry;
static address _atomic_cmpxchg_entry;
static address _atomic_cmpxchg_ptr_entry;
static address _atomic_cmpxchg_long_entry;
static address _atomic_add_entry;
static address _atomic_add_ptr_entry;
static address _fence_entry;
static address _d2i_wrapper;
static address _d2l_wrapper;
static jint _fpu_cntrl_wrd_std;
static jint _fpu_cntrl_wrd_24;
static jint _fpu_cntrl_wrd_64;
static jint _fpu_cntrl_wrd_trunc;
static jint _mxcsr_std;
// Leaf routines which implement arraycopy and their addresses
// arraycopy operands aligned on element type boundary
static address _jbyte_arraycopy;
static address _jshort_arraycopy;
static address _jint_arraycopy;
static address _jlong_arraycopy;
static address _jbyte_disjoint_arraycopy;
static address _jshort_disjoint_arraycopy;
static address _jint_disjoint_arraycopy;
static address _jlong_disjoint_arraycopy;
// arraycopy operands aligned on zero'th element boundary
// These are identical to the ones aligned aligned on an
// element type boundary, except that they assume that both
// source and destination are HeapWord aligned.
static address _arrayof_jbyte_arraycopy;
static address _arrayof_jshort_arraycopy;
static address _arrayof_jint_arraycopy;
static address _arrayof_jlong_arraycopy;
// these are recommended but optional:
static address _unsafe_arraycopy;
static address _generic_arraycopy;
static address _jbyte_fill;
static address _jshort_fill;
static address _jint_fill;
static address _arrayof_jbyte_fill;
static address _arrayof_jshort_fill;
static address _arrayof_jint_fill;
// zero heap space aligned to jlong (8 bytes)
static address _zero_aligned_words;
static address _aescrypt_encryptBlock;
static address _aescrypt_decryptBlock;
// These are versions of the java.lang.Math methods which perform
// the same operations as the intrinsic version. They are used for
// constant folding in the compiler to ensure equivalence. If the
// intrinsic version returns the same result as the strict version
// then they can be set to the appropriate function from
// SharedRuntime.
static double (*_intrinsic_log)(double);
static double (*_intrinsic_log10)(double);
static double (*_intrinsic_exp)(double);
static double (*_intrinsic_pow)(double, double);
static double (*_intrinsic_sin)(double);
static double (*_intrinsic_cos)(double);
static double (*_intrinsic_tan)(double);
public:
static void initialize1(); // must happen before universe::genesis
static void initialize2(); // must happen after universe::genesis
return
}
// Debugging
// a subroutine for debugging the GC
static address verify_oop_subroutine_entry_address() { return (address)&_verify_oop_subroutine_entry; }
// Calls to Java
typedef void (*CallStub)(
int size_of_parameters,
);
// Exceptions
// Implicit exceptions
static address throw_IncompatibleClassChangeError_entry(){ return _throw_IncompatibleClassChangeError_entry; }
static address throw_NullPointerException_at_call_entry(){ return _throw_NullPointerException_at_call_entry; }
// Exceptions during unsafe access - should throw Java exception rather
// than crash.
static address select_arraycopy_function(BasicType t, bool aligned, bool disjoint, const char* &name, bool dest_uninitialized);
}
}
}
return dest_uninitialized ? _arrayof_oop_disjoint_arraycopy_uninit : _arrayof_oop_disjoint_arraycopy;
}
}
static address cipherBlockChaining_encryptAESCrypt() { return _cipherBlockChaining_encryptAESCrypt; }
static address cipherBlockChaining_decryptAESCrypt() { return _cipherBlockChaining_decryptAESCrypt; }
static double intrinsic_log(double d) {
return _intrinsic_log(d);
}
static double intrinsic_log10(double d) {
return _intrinsic_log10(d);
}
static double intrinsic_exp(double d) {
return _intrinsic_exp(d);
}
static double intrinsic_pow(double d, double d2) {
return _intrinsic_pow(d, d2);
}
static double intrinsic_sin(double d) {
return _intrinsic_sin(d);
}
static double intrinsic_cos(double d) {
return _intrinsic_cos(d);
}
static double intrinsic_tan(double d) {
return _intrinsic_tan(d);
}
//
// Default versions of the above arraycopy functions for platforms which do
// not have specialized versions
//
};
#endif // SHARE_VM_RUNTIME_STUBROUTINES_HPP