1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/cpu/sparc/vm/interpreterRT_sparc.cpp Sat Dec 01 00:00:00 2007 +0000
1.3 @@ -0,0 +1,260 @@
1.4 +/*
1.5 + * Copyright 1998-2006 Sun Microsystems, Inc. All Rights Reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
1.23 + * CA 95054 USA or visit www.sun.com if you need additional information or
1.24 + * have any questions.
1.25 + *
1.26 + */
1.27 +
1.28 +#include "incls/_precompiled.incl"
1.29 +#include "incls/_interpreterRT_sparc.cpp.incl"
1.30 +
1.31 +
1.32 +#define __ _masm->
1.33 +
1.34 +
1.35 +// Implementation of SignatureHandlerGenerator
1.36 +
1.37 +void InterpreterRuntime::SignatureHandlerGenerator::pass_word(int size_of_arg, int offset_in_arg) {
1.38 + Argument jni_arg(jni_offset() + offset_in_arg, false);
1.39 + Register Rtmp = O0;
1.40 + __ ld(Llocals, Interpreter::local_offset_in_bytes(offset()), Rtmp);
1.41 +
1.42 + __ store_argument(Rtmp, jni_arg);
1.43 +}
1.44 +
1.45 +void InterpreterRuntime::SignatureHandlerGenerator::pass_long() {
1.46 + Argument jni_arg(jni_offset(), false);
1.47 + Register Rtmp = O0;
1.48 +
1.49 +#ifdef ASSERT
1.50 + if (TaggedStackInterpreter) {
1.51 + // check at least one tag is okay
1.52 + Label ok;
1.53 + __ ld_ptr(Llocals, Interpreter::local_tag_offset_in_bytes(offset() + 1), Rtmp);
1.54 + __ cmp(Rtmp, G0);
1.55 + __ brx(Assembler::equal, false, Assembler::pt, ok);
1.56 + __ delayed()->nop();
1.57 + __ stop("Native object has bad tag value");
1.58 + __ bind(ok);
1.59 + }
1.60 +#endif // ASSERT
1.61 +
1.62 +#ifdef _LP64
1.63 + __ ldx(Llocals, Interpreter::local_offset_in_bytes(offset() + 1), Rtmp);
1.64 + __ store_long_argument(Rtmp, jni_arg);
1.65 +#else
1.66 + __ ld(Llocals, Interpreter::local_offset_in_bytes(offset() + 1), Rtmp);
1.67 + __ store_argument(Rtmp, jni_arg);
1.68 + __ ld(Llocals, Interpreter::local_offset_in_bytes(offset() + 0), Rtmp);
1.69 + Argument successor(jni_arg.successor());
1.70 + __ store_argument(Rtmp, successor);
1.71 +#endif
1.72 +}
1.73 +
1.74 +
1.75 +#ifdef _LP64
1.76 +void InterpreterRuntime::SignatureHandlerGenerator::pass_float() {
1.77 + Argument jni_arg(jni_offset(), false);
1.78 + FloatRegister Rtmp = F0;
1.79 + __ ldf(FloatRegisterImpl::S, Llocals, Interpreter::local_offset_in_bytes(offset()), Rtmp);
1.80 + __ store_float_argument(Rtmp, jni_arg);
1.81 +}
1.82 +#endif
1.83 +
1.84 +
1.85 +void InterpreterRuntime::SignatureHandlerGenerator::pass_double() {
1.86 + Argument jni_arg(jni_offset(), false);
1.87 +#ifdef _LP64
1.88 + FloatRegister Rtmp = F0;
1.89 + __ ldf(FloatRegisterImpl::D, Llocals, Interpreter::local_offset_in_bytes(offset() + 1), Rtmp);
1.90 + __ store_double_argument(Rtmp, jni_arg);
1.91 +#else
1.92 + Register Rtmp = O0;
1.93 + __ ld(Llocals, Interpreter::local_offset_in_bytes(offset() + 1), Rtmp);
1.94 + __ store_argument(Rtmp, jni_arg);
1.95 + __ ld(Llocals, Interpreter::local_offset_in_bytes(offset()), Rtmp);
1.96 + Argument successor(jni_arg.successor());
1.97 + __ store_argument(Rtmp, successor);
1.98 +#endif
1.99 +}
1.100 +
1.101 +void InterpreterRuntime::SignatureHandlerGenerator::pass_object() {
1.102 + Argument jni_arg(jni_offset(), false);
1.103 + Argument java_arg( offset(), true);
1.104 + Register Rtmp1 = O0;
1.105 + Register Rtmp2 = jni_arg.is_register() ? jni_arg.as_register() : O0;
1.106 + Register Rtmp3 = G3_scratch;
1.107 +
1.108 + // the handle for a receiver will never be null
1.109 + bool do_NULL_check = offset() != 0 || is_static();
1.110 +
1.111 + Address h_arg = Address(Llocals, 0, Interpreter::local_offset_in_bytes(offset()));
1.112 + __ ld_ptr(h_arg, Rtmp1);
1.113 +#ifdef ASSERT
1.114 + if (TaggedStackInterpreter) {
1.115 + // check we have the obj and not the tag
1.116 + Label ok;
1.117 + __ mov(frame::TagReference, Rtmp3);
1.118 + __ cmp(Rtmp1, Rtmp3);
1.119 + __ brx(Assembler::notEqual, true, Assembler::pt, ok);
1.120 + __ delayed()->nop();
1.121 + __ stop("Native object passed tag by mistake");
1.122 + __ bind(ok);
1.123 + }
1.124 +#endif // ASSERT
1.125 + if (!do_NULL_check) {
1.126 + __ add(h_arg, Rtmp2);
1.127 + } else {
1.128 + if (Rtmp1 == Rtmp2)
1.129 + __ tst(Rtmp1);
1.130 + else __ addcc(G0, Rtmp1, Rtmp2); // optimize mov/test pair
1.131 + Label L;
1.132 + __ brx(Assembler::notZero, true, Assembler::pt, L);
1.133 + __ delayed()->add(h_arg, Rtmp2);
1.134 + __ bind(L);
1.135 + }
1.136 + __ store_ptr_argument(Rtmp2, jni_arg); // this is often a no-op
1.137 +}
1.138 +
1.139 +
1.140 +void InterpreterRuntime::SignatureHandlerGenerator::generate(uint64_t fingerprint) {
1.141 +
1.142 + // generate code to handle arguments
1.143 + iterate(fingerprint);
1.144 +
1.145 + // return result handler
1.146 + Address result_handler(Lscratch, Interpreter::result_handler(method()->result_type()));
1.147 + __ sethi(result_handler);
1.148 + __ retl();
1.149 + __ delayed()->add(result_handler, result_handler.base());
1.150 +
1.151 + __ flush();
1.152 +}
1.153 +
1.154 +
1.155 +// Implementation of SignatureHandlerLibrary
1.156 +
1.157 +void SignatureHandlerLibrary::pd_set_handler(address handler) {}
1.158 +
1.159 +
1.160 +class SlowSignatureHandler: public NativeSignatureIterator {
1.161 + private:
1.162 + address _from;
1.163 + intptr_t* _to;
1.164 + intptr_t* _RegArgSignature; // Signature of first Arguments to be passed in Registers
1.165 + uint _argcount;
1.166 +
1.167 + enum { // We need to differenciate float from non floats in reg args
1.168 + non_float = 0,
1.169 + float_sig = 1,
1.170 + double_sig = 2,
1.171 + long_sig = 3
1.172 + };
1.173 +
1.174 +#ifdef ASSERT
1.175 + void verify_tag(frame::Tag t) {
1.176 + assert(!TaggedStackInterpreter ||
1.177 + *(intptr_t*)(_from+Interpreter::local_tag_offset_in_bytes(0)) == t, "wrong tag");
1.178 + }
1.179 +#endif // ASSERT
1.180 +
1.181 + virtual void pass_int() {
1.182 + *_to++ = *(jint *)(_from+Interpreter::local_offset_in_bytes(0));
1.183 + debug_only(verify_tag(frame::TagValue));
1.184 + _from -= Interpreter::stackElementSize();
1.185 + add_signature( non_float );
1.186 + }
1.187 +
1.188 + virtual void pass_object() {
1.189 + // pass address of from
1.190 + intptr_t *from_addr = (intptr_t*)(_from + Interpreter::local_offset_in_bytes(0));
1.191 + *_to++ = (*from_addr == 0) ? NULL : (intptr_t) from_addr;
1.192 + debug_only(verify_tag(frame::TagReference));
1.193 + _from -= Interpreter::stackElementSize();
1.194 + add_signature( non_float );
1.195 + }
1.196 +
1.197 +#ifdef _LP64
1.198 + virtual void pass_float() {
1.199 + *_to++ = *(jint *)(_from+Interpreter::local_offset_in_bytes(0));
1.200 + debug_only(verify_tag(frame::TagValue));
1.201 + _from -= Interpreter::stackElementSize();
1.202 + add_signature( float_sig );
1.203 + }
1.204 +
1.205 + virtual void pass_double() {
1.206 + *_to++ = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1));
1.207 + debug_only(verify_tag(frame::TagValue));
1.208 + _from -= 2*Interpreter::stackElementSize();
1.209 + add_signature( double_sig );
1.210 + }
1.211 +
1.212 + virtual void pass_long() {
1.213 + _to[0] = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1));
1.214 + debug_only(verify_tag(frame::TagValue));
1.215 + _to += 1;
1.216 + _from -= 2*Interpreter::stackElementSize();
1.217 + add_signature( long_sig );
1.218 + }
1.219 +#else
1.220 + // pass_double() is pass_long() and pass_float() only _LP64
1.221 + virtual void pass_long() {
1.222 + _to[0] = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1));
1.223 + _to[1] = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(0));
1.224 + debug_only(verify_tag(frame::TagValue));
1.225 + _to += 2;
1.226 + _from -= 2*Interpreter::stackElementSize();
1.227 + add_signature( non_float );
1.228 + }
1.229 +#endif // _LP64
1.230 +
1.231 + virtual void add_signature( intptr_t sig_type ) {
1.232 + if ( _argcount < (sizeof (intptr_t))*4 ) {
1.233 + *_RegArgSignature |= (sig_type << (_argcount*2) );
1.234 + _argcount++;
1.235 + }
1.236 + }
1.237 +
1.238 +
1.239 + public:
1.240 + SlowSignatureHandler(methodHandle method, address from, intptr_t* to, intptr_t *RegArgSig) : NativeSignatureIterator(method) {
1.241 + _from = from;
1.242 + _to = to;
1.243 + _RegArgSignature = RegArgSig;
1.244 + *_RegArgSignature = 0;
1.245 + _argcount = method->is_static() ? 2 : 1;
1.246 + }
1.247 +};
1.248 +
1.249 +
1.250 +IRT_ENTRY(address, InterpreterRuntime::slow_signature_handler(
1.251 + JavaThread* thread,
1.252 + methodOopDesc* method,
1.253 + intptr_t* from,
1.254 + intptr_t* to ))
1.255 + methodHandle m(thread, method);
1.256 + assert(m->is_native(), "sanity check");
1.257 + // handle arguments
1.258 + // Warning: We use reg arg slot 00 temporarily to return the RegArgSignature
1.259 + // back to the code that pops the arguments into the CPU registers
1.260 + SlowSignatureHandler(m, (address)from, m->is_static() ? to+2 : to+1, to).iterate(UCONST64(-1));
1.261 + // return result handler
1.262 + return Interpreter::result_handler(m->result_type());
1.263 +IRT_END
