--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/cpu/sparc/vm/relocInfo_sparc.cpp Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,195 @@
+/*
+ * Copyright 1998-2005 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+# include "incls/_precompiled.incl"
+# include "incls/_relocInfo_sparc.cpp.incl"
+
+void Relocation::pd_set_data_value(address x, intptr_t o) {
+ NativeInstruction* ip = nativeInstruction_at(addr());
+ jint inst = ip->long_at(0);
+ assert(inst != NativeInstruction::illegal_instruction(), "no breakpoint");
+ switch (Assembler::inv_op(inst)) {
+
+ case Assembler::ldst_op:
+ #ifdef ASSERT
+ switch (Assembler::inv_op3(inst)) {
+ case Assembler::lduw_op3:
+ case Assembler::ldub_op3:
+ case Assembler::lduh_op3:
+ case Assembler::ldd_op3:
+ case Assembler::ldsw_op3:
+ case Assembler::ldsb_op3:
+ case Assembler::ldsh_op3:
+ case Assembler::ldx_op3:
+ case Assembler::ldf_op3:
+ case Assembler::lddf_op3:
+ case Assembler::stw_op3:
+ case Assembler::stb_op3:
+ case Assembler::sth_op3:
+ case Assembler::std_op3:
+ case Assembler::stx_op3:
+ case Assembler::stf_op3:
+ case Assembler::stdf_op3:
+ case Assembler::casa_op3:
+ case Assembler::casxa_op3:
+ break;
+ default:
+ ShouldNotReachHere();
+ }
+ goto do_non_sethi;
+ #endif
+
+ case Assembler::arith_op:
+ #ifdef ASSERT
+ switch (Assembler::inv_op3(inst)) {
+ case Assembler::or_op3:
+ case Assembler::add_op3:
+ case Assembler::jmpl_op3:
+ break;
+ default:
+ ShouldNotReachHere();
+ }
+ do_non_sethi:;
+ #endif
+ {
+ guarantee(Assembler::inv_immed(inst), "must have a simm13 field");
+ int simm13 = Assembler::low10((intptr_t)x) + o;
+ guarantee(Assembler::is_simm13(simm13), "offset can't overflow simm13");
+ inst &= ~Assembler::simm( -1, 13);
+ inst |= Assembler::simm(simm13, 13);
+ ip->set_long_at(0, inst);
+ }
+ break;
+
+ case Assembler::branch_op:
+ {
+#ifdef _LP64
+ jint inst2;
+ guarantee(Assembler::inv_op2(inst)==Assembler::sethi_op2, "must be sethi");
+ ip->set_data64_sethi( ip->addr_at(0), (intptr_t)x );
+#ifdef COMPILER2
+ // [RGV] Someone must have missed putting in a reloc entry for the
+ // add in compiler2.
+ inst2 = ip->long_at( NativeMovConstReg::add_offset );
+ guarantee(Assembler::inv_op(inst2)==Assembler::arith_op, "arith op");
+ ip->set_long_at(NativeMovConstReg::add_offset,ip->set_data32_simm13( inst2, (intptr_t)x+o));
+#endif
+#else
+ guarantee(Assembler::inv_op2(inst)==Assembler::sethi_op2, "must be sethi");
+ inst &= ~Assembler::hi22( -1);
+ inst |= Assembler::hi22((intptr_t)x);
+ // (ignore offset; it doesn't play into the sethi)
+ ip->set_long_at(0, inst);
+#endif
+ }
+ break;
+
+ default:
+ guarantee(false, "instruction must perform arithmetic or memory access");
+ }
+}
+
+
+address Relocation::pd_call_destination(address orig_addr) {
+ intptr_t adj = 0;
+ if (orig_addr != NULL) {
+ // We just moved this call instruction from orig_addr to addr().
+ // This means its target will appear to have grown by addr() - orig_addr.
+ adj = -( addr() - orig_addr );
+ }
+ if (NativeCall::is_call_at(addr())) {
+ NativeCall* call = nativeCall_at(addr());
+ return call->destination() + adj;
+ }
+ if (NativeFarCall::is_call_at(addr())) {
+ NativeFarCall* call = nativeFarCall_at(addr());
+ return call->destination() + adj;
+ }
+ // Special case: Patchable branch local to the code cache.
+ // This will break badly if the code cache grows larger than a few Mb.
+ NativeGeneralJump* br = nativeGeneralJump_at(addr());
+ return br->jump_destination() + adj;
+}
+
+
+void Relocation::pd_set_call_destination(address x) {
+ if (NativeCall::is_call_at(addr())) {
+ NativeCall* call = nativeCall_at(addr());
+ call->set_destination(x);
+ return;
+ }
+ if (NativeFarCall::is_call_at(addr())) {
+ NativeFarCall* call = nativeFarCall_at(addr());
+ call->set_destination(x);
+ return;
+ }
+ // Special case: Patchable branch local to the code cache.
+ // This will break badly if the code cache grows larger than a few Mb.
+ NativeGeneralJump* br = nativeGeneralJump_at(addr());
+ br->set_jump_destination(x);
+}
+
+
+address* Relocation::pd_address_in_code() {
+ // SPARC never embeds addresses in code, at present.
+ //assert(type() == relocInfo::oop_type, "only oops are inlined at present");
+ return (address*)addr();
+}
+
+
+address Relocation::pd_get_address_from_code() {
+ // SPARC never embeds addresses in code, at present.
+ //assert(type() == relocInfo::oop_type, "only oops are inlined at present");
+ return *(address*)addr();
+}
+
+
+int Relocation::pd_breakpoint_size() {
+ // minimum breakpoint size, in short words
+ return NativeIllegalInstruction::instruction_size / sizeof(short);
+}
+
+void Relocation::pd_swap_in_breakpoint(address x, short* instrs, int instrlen) {
+ Untested("pd_swap_in_breakpoint");
+ // %%% probably do not need a general instrlen; just use the trap size
+ if (instrs != NULL) {
+ assert(instrlen * sizeof(short) == NativeIllegalInstruction::instruction_size, "enough instrlen in reloc. data");
+ for (int i = 0; i < instrlen; i++) {
+ instrs[i] = ((short*)x)[i];
+ }
+ }
+ NativeIllegalInstruction::insert(x);
+}
+
+
+void Relocation::pd_swap_out_breakpoint(address x, short* instrs, int instrlen) {
+ Untested("pd_swap_out_breakpoint");
+ assert(instrlen * sizeof(short) == sizeof(int), "enough buf");
+ union { int l; short s[1]; } u;
+ for (int i = 0; i < instrlen; i++) {
+ u.s[i] = instrs[i];
+ }
+ NativeInstruction* ni = nativeInstruction_at(x);
+ ni->set_long_at(0, u.l);
+}