Mercurial > hg > icedtea7-forest > hotspot
changeset 5555:e559a0f8f986
Merge PPC64 port
author | andrew |
---|---|
date | Mon, 11 Aug 2014 16:38:33 +0100 |
parents | 42a819ab201a (current diff) 1176e8ff9f90 (diff) |
children | b517477362d1 |
files | .hgtags make/hotspot_version make/linux/makefiles/buildtree.make make/linux/makefiles/gcc.make make/linux/makefiles/vm.make src/cpu/zero/vm/globals_zero.hpp src/os/linux/vm/os_linux.cpp src/share/vm/interpreter/interpreterRuntime.cpp src/share/vm/interpreter/interpreterRuntime.hpp src/share/vm/memory/collectorPolicy.cpp src/share/vm/memory/defNewGeneration.cpp src/share/vm/memory/universe.cpp src/share/vm/opto/graphKit.cpp src/share/vm/prims/jni.cpp src/share/vm/runtime/arguments.cpp src/share/vm/runtime/globals.hpp src/share/vm/runtime/thread.cpp src/share/vm/runtime/vmThread.cpp src/share/vm/utilities/globalDefinitions.hpp |
diffstat | 10 files changed, 159 insertions(+), 62 deletions(-) [+] |
line wrap: on
line diff
--- a/make/linux/makefiles/buildtree.make Mon Aug 11 15:09:20 2014 +0100 +++ b/make/linux/makefiles/buildtree.make Mon Aug 11 16:38:33 2014 +0100 @@ -211,8 +211,8 @@ echo "HOTSPOT_BUILD_USER = $(HOTSPOT_BUILD_USER)"; \ echo "HOTSPOT_VM_DISTRO = $(HOTSPOT_VM_DISTRO)"; \ echo "OPENJDK = $(OPENJDK)"; \ + echo "OPENJDK_TARGET_CPU_ENDIAN = $(OPENJDK_TARGET_CPU_ENDIAN)"; \ echo "ZERO_BUILD = $(ZERO_BUILD)"; \ - echo "OPENJDK_TARGET_CPU_ENDIAN = $(OPENJDK_TARGET_CPU_ENDIAN)"; \ echo; \ echo "# Used for platform dispatching"; \ echo "TARGET_DEFINES = -DTARGET_OS_FAMILY_\$$(Platform_os_family)"; \
--- a/src/cpu/ppc/vm/assembler_ppc.hpp Mon Aug 11 15:09:20 2014 +0100 +++ b/src/cpu/ppc/vm/assembler_ppc.hpp Mon Aug 11 16:38:33 2014 +0100 @@ -301,6 +301,7 @@ LWZ_OPCODE = (32u << OPCODE_SHIFT), LWZX_OPCODE = (31u << OPCODE_SHIFT | 23u << 1), LWZU_OPCODE = (33u << OPCODE_SHIFT), + LWBRX_OPCODE = (31u << OPCODE_SHIFT | 534 << 1), LHA_OPCODE = (42u << OPCODE_SHIFT), LHAX_OPCODE = (31u << OPCODE_SHIFT | 343u << 1), @@ -309,6 +310,7 @@ LHZ_OPCODE = (40u << OPCODE_SHIFT), LHZX_OPCODE = (31u << OPCODE_SHIFT | 279u << 1), LHZU_OPCODE = (41u << OPCODE_SHIFT), + LHBRX_OPCODE = (31u << OPCODE_SHIFT | 790 << 1), LBZ_OPCODE = (34u << OPCODE_SHIFT), LBZX_OPCODE = (31u << OPCODE_SHIFT | 87u << 1), @@ -1369,11 +1371,17 @@ inline void lwax( Register d, Register s1, Register s2); inline void lwa( Register d, int si16, Register s1); + // 4 bytes reversed + inline void lwbrx( Register d, Register s1, Register s2); + // 2 bytes inline void lhzx( Register d, Register s1, Register s2); inline void lhz( Register d, int si16, Register s1); inline void lhzu( Register d, int si16, Register s1); + // 2 bytes reversed + inline void lhbrx( Register d, Register s1, Register s2); + // 2 bytes inline void lhax( Register d, Register s1, Register s2); inline void lha( Register d, int si16, Register s1); @@ -1866,10 +1874,12 @@ inline void lwz( Register d, int si16); inline void lwax( Register d, Register s2); inline void lwa( Register d, int si16); + inline void lwbrx(Register d, Register s2); inline void lhzx( Register d, Register s2); inline void lhz( Register d, int si16); inline void lhax( Register d, Register s2); inline void lha( Register d, int si16); + inline void lhbrx(Register d, Register s2); inline void lbzx( Register d, Register s2); inline void lbz( Register d, int si16); inline void ldx( Register d, Register s2);
--- a/src/cpu/ppc/vm/assembler_ppc.inline.hpp Mon Aug 11 15:09:20 2014 +0100 +++ b/src/cpu/ppc/vm/assembler_ppc.inline.hpp Mon Aug 11 16:38:33 2014 +0100 @@ -272,10 +272,14 @@ inline void Assembler::lwax( Register d, Register s1, Register s2) { emit_int32(LWAX_OPCODE | rt(d) | ra0mem(s1) | rb(s2));} inline void Assembler::lwa( Register d, int si16, Register s1) { emit_int32(LWA_OPCODE | rt(d) | ds(si16) | ra0mem(s1));} +inline void Assembler::lwbrx( Register d, Register s1, Register s2) { emit_int32(LWBRX_OPCODE | rt(d) | ra0mem(s1) | rb(s2));} + inline void Assembler::lhzx( Register d, Register s1, Register s2) { emit_int32(LHZX_OPCODE | rt(d) | ra0mem(s1) | rb(s2));} inline void Assembler::lhz( Register d, int si16, Register s1) { emit_int32(LHZ_OPCODE | rt(d) | d1(si16) | ra0mem(s1));} inline void Assembler::lhzu( Register d, int si16, Register s1) { assert(d != s1, "according to ibm manual"); emit_int32(LHZU_OPCODE | rt(d) | d1(si16) | rta0mem(s1));} +inline void Assembler::lhbrx( Register d, Register s1, Register s2) { emit_int32(LHBRX_OPCODE | rt(d) | ra0mem(s1) | rb(s2));} + inline void Assembler::lhax( Register d, Register s1, Register s2) { emit_int32(LHAX_OPCODE | rt(d) | ra0mem(s1) | rb(s2));} inline void Assembler::lha( Register d, int si16, Register s1) { emit_int32(LHA_OPCODE | rt(d) | d1(si16) | ra0mem(s1));} inline void Assembler::lhau( Register d, int si16, Register s1) { assert(d != s1, "according to ibm manual"); emit_int32(LHAU_OPCODE | rt(d) | d1(si16) | rta0mem(s1));} @@ -742,10 +746,12 @@ inline void Assembler::lwz( Register d, int si16 ) { emit_int32( LWZ_OPCODE | rt(d) | d1(si16));} inline void Assembler::lwax( Register d, Register s2) { emit_int32( LWAX_OPCODE | rt(d) | rb(s2));} inline void Assembler::lwa( Register d, int si16 ) { emit_int32( LWA_OPCODE | rt(d) | ds(si16));} +inline void Assembler::lwbrx(Register d, Register s2) { emit_int32( LWBRX_OPCODE| rt(d) | rb(s2));} inline void Assembler::lhzx( Register d, Register s2) { emit_int32( LHZX_OPCODE | rt(d) | rb(s2));} inline void Assembler::lhz( Register d, int si16 ) { emit_int32( LHZ_OPCODE | rt(d) | d1(si16));} inline void Assembler::lhax( Register d, Register s2) { emit_int32( LHAX_OPCODE | rt(d) | rb(s2));} inline void Assembler::lha( Register d, int si16 ) { emit_int32( LHA_OPCODE | rt(d) | d1(si16));} +inline void Assembler::lhbrx(Register d, Register s2) { emit_int32( LHBRX_OPCODE| rt(d) | rb(s2));} inline void Assembler::lbzx( Register d, Register s2) { emit_int32( LBZX_OPCODE | rt(d) | rb(s2));} inline void Assembler::lbz( Register d, int si16 ) { emit_int32( LBZ_OPCODE | rt(d) | d1(si16));} inline void Assembler::ld( Register d, int si16 ) { emit_int32( LD_OPCODE | rt(d) | ds(si16));}
--- a/src/cpu/ppc/vm/interp_masm_ppc_64.cpp Mon Aug 11 15:09:20 2014 +0100 +++ b/src/cpu/ppc/vm/interp_masm_ppc_64.cpp Mon Aug 11 16:38:33 2014 +0100 @@ -119,9 +119,15 @@ // Call the Interpreter::remove_activation_preserving_args_entry() // func to get the address of the same-named entrypoint in the // generated interpreter code. +#if defined(ABI_ELFv2) + call_c(CAST_FROM_FN_PTR(address, + Interpreter::remove_activation_preserving_args_entry), + relocInfo::none); +#else call_c(CAST_FROM_FN_PTR(FunctionDescriptor*, Interpreter::remove_activation_preserving_args_entry), relocInfo::none); +#endif // Jump to Interpreter::_remove_activation_preserving_args_entry. mtctr(R3_RET); @@ -331,29 +337,40 @@ void InterpreterMacroAssembler::get_2_byte_integer_at_bcp(int bcp_offset, Register Rdst, signedOrNot is_signed) { +#if defined(VM_LITTLE_ENDIAN) + if (bcp_offset) { + load_const_optimized(Rdst, bcp_offset); + lhbrx(Rdst, R14_bcp, Rdst); + } else { + lhbrx(Rdst, R14_bcp); + } + if (is_signed == Signed) { + extsh(Rdst, Rdst); + } +#else // Read Java big endian format. if (is_signed == Signed) { lha(Rdst, bcp_offset, R14_bcp); } else { lhz(Rdst, bcp_offset, R14_bcp); } -#if 0 - assert(Rtmp != Rdst, "need separate temp register"); - Register Rfirst = Rtmp; - lbz(Rfirst, bcp_offset, R14_bcp); // first byte - lbz(Rdst, bcp_offset+1, R14_bcp); // second byte - - // Rdst = ((Rfirst<<8) & 0xFF00) | (Rdst &~ 0xFF00) - rldimi(/*RA=*/Rdst, /*RS=*/Rfirst, /*sh=*/8, /*mb=*/48); - if (is_signed == Signed) { - extsh(Rdst, Rdst); - } #endif } void InterpreterMacroAssembler::get_4_byte_integer_at_bcp(int bcp_offset, Register Rdst, signedOrNot is_signed) { +#if defined(VM_LITTLE_ENDIAN) + if (bcp_offset) { + load_const_optimized(Rdst, bcp_offset); + lwbrx(Rdst, R14_bcp, Rdst); + } else { + lwbrx(Rdst, R14_bcp); + } + if (is_signed == Signed) { + extsw(Rdst, Rdst); + } +#else // Read Java big endian format. if (bcp_offset & 3) { // Offset unaligned? load_const_optimized(Rdst, bcp_offset); @@ -369,6 +386,7 @@ lwz(Rdst, bcp_offset, R14_bcp); } } +#endif } // Load the constant pool cache index from the bytecode stream. @@ -377,11 +395,17 @@ // - Rdst, Rscratch void InterpreterMacroAssembler::get_cache_index_at_bcp(Register Rdst, int bcp_offset, size_t index_size) { assert(bcp_offset > 0, "bcp is still pointing to start of bytecode"); + // Cache index is always in the native format, courtesy of Rewriter. if (index_size == sizeof(u2)) { - get_2_byte_integer_at_bcp(bcp_offset, Rdst, Unsigned); + lhz(Rdst, bcp_offset, R14_bcp); } else if (index_size == sizeof(u4)) { assert(EnableInvokeDynamic, "giant index used only for JSR 292"); - get_4_byte_integer_at_bcp(bcp_offset, Rdst, Signed); + if (bcp_offset & 3) { + load_const_optimized(Rdst, bcp_offset); + lwax(Rdst, R14_bcp, Rdst); + } else { + lwa(Rdst, bcp_offset, R14_bcp); + } assert(constantPoolCacheOopDesc::decode_secondary_index(~123) == 123, "else change next line"); nand(Rdst, Rdst, Rdst); // convert to plain index } else if (index_size == sizeof(u1)) { @@ -397,6 +421,30 @@ sldi(cache, cache, exact_log2(in_words(ConstantPoolCacheEntry::size()) * BytesPerWord)); add(cache, R27_constPoolCache, cache); } + +// Load 4-byte signed or unsigned integer in Java format (that is, big-endian format) +// from (Rsrc)+offset. +void InterpreterMacroAssembler::get_u4(Register Rdst, Register Rsrc, int offset, + signedOrNot is_signed) { +#if defined(VM_LITTLE_ENDIAN) + if (offset) { + load_const_optimized(Rdst, offset); + lwbrx(Rdst, Rdst, Rsrc); + } else { + lwbrx(Rdst, Rsrc); + } + if (is_signed == Signed) { + extsw(Rdst, Rdst); + } +#else + if (is_signed == Signed) { + lwa(Rdst, offset, Rsrc); + } else { + lwz(Rdst, offset, Rsrc); + } +#endif +} + #if 0 // Load object from cpool->resolved_references(index). void InterpreterMacroAssembler::load_resolved_reference_at_index(Register result, Register index) {
--- a/src/cpu/ppc/vm/interp_masm_ppc_64.hpp Mon Aug 11 15:09:20 2014 +0100 +++ b/src/cpu/ppc/vm/interp_masm_ppc_64.hpp Mon Aug 11 16:38:33 2014 +0100 @@ -130,6 +130,7 @@ void get_cache_and_index_at_bcp(Register cache, int bcp_offset, size_t index_size = sizeof(u2)); + void get_u4(Register Rdst, Register Rsrc, int offset, signedOrNot is_signed); // common code
--- a/src/cpu/ppc/vm/templateInterpreter_ppc.cpp Mon Aug 11 15:09:20 2014 +0100 +++ b/src/cpu/ppc/vm/templateInterpreter_ppc.cpp Mon Aug 11 16:38:33 2014 +0100 @@ -187,8 +187,13 @@ __ get_cache_and_index_at_bcp(cache, 1); __ bind(Lgot_cache); - // Big Endian (get least significant byte of 64 bit value): + // Get least significant byte of 64 bit value: +#if defined(VM_LITTLE_ENDIAN) + __ lbz(size, in_bytes(constantPoolCacheOopDesc::base_offset() + ConstantPoolCacheEntry::flags_offset()), cache); +#else __ lbz(size, in_bytes(constantPoolCacheOopDesc::base_offset() + ConstantPoolCacheEntry::flags_offset()) + 7, cache); +#endif + __ sldi(size, size, Interpreter::logStackElementSize); __ add(R15_esp, R15_esp, size); __ dispatch_next(state, step); @@ -874,7 +879,9 @@ // Our signature handlers copy required arguments to the C stack // (outgoing C args), R3_ARG1 to R10_ARG8, and FARG1 to FARG13. __ mr(R3_ARG1, R18_locals); +#if !defined(ABI_ELFv2) __ ld(signature_handler_fd, 0, signature_handler_fd); +#endif __ call_stub(signature_handler_fd); // Reload method, it may have moved. @@ -1039,8 +1046,13 @@ // native result across the call. No oop is present. __ mr(R3_ARG1, R16_thread); +#if defined(ABI_ELFv2) + __ call_c(CAST_FROM_FN_PTR(address, JavaThread::check_special_condition_for_native_trans), + relocInfo::none); +#else __ call_c(CAST_FROM_FN_PTR(FunctionDescriptor*, JavaThread::check_special_condition_for_native_trans), relocInfo::none); +#endif __ bind(sync_check_done);
--- a/src/cpu/ppc/vm/templateTable_ppc_64.cpp Mon Aug 11 15:09:20 2014 +0100 +++ b/src/cpu/ppc/vm/templateTable_ppc_64.cpp Mon Aug 11 16:38:33 2014 +0100 @@ -190,8 +190,12 @@ assert(byte_no == f1_byte || byte_no == f2_byte, "byte_no out of range"); assert(load_bc_into_bc_reg, "we use bc_reg as temp"); __ get_cache_and_index_at_bcp(Rtemp /* dst = cache */, 1); - // Big Endian: ((*(cache+indices))>>((1+byte_no)*8))&0xFF + // ((*(cache+indices))>>((1+byte_no)*8))&0xFF: +#if defined(VM_LITTLE_ENDIAN) + __ lbz(Rnew_bc, in_bytes(constantPoolCacheOopDesc::base_offset() + ConstantPoolCacheEntry::indices_offset()) + 1 + byte_no, Rtemp); +#else __ lbz(Rnew_bc, in_bytes(constantPoolCacheOopDesc::base_offset() + ConstantPoolCacheEntry::indices_offset()) + 7 - (1 + byte_no), Rtemp); +#endif __ cmpwi(CCR0, Rnew_bc, 0); __ li(Rnew_bc, (unsigned int)(unsigned char)new_bc); __ beq(CCR0, L_patch_done); @@ -211,7 +215,7 @@ __ lbz(Rtemp, 0, R14_bcp); __ cmpwi(CCR0, Rtemp, (unsigned int)(unsigned char)Bytecodes::_breakpoint); __ bne(CCR0, L_fast_patch); - // Perform the quickening, slowly, in the bowels of the breakpoint table. + // Perform the quickening, slowly, in the bowels of the breakpoint table. __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::set_original_bytecode_at), R19_method, R14_bcp, Rnew_bc); __ b(L_patch_done); __ bind(L_fast_patch); @@ -1877,8 +1881,8 @@ __ clrrdi(Rdef_offset_addr, Rdef_offset_addr, log2_long((jlong)BytesPerInt)); // Load lo & hi. - __ lwz(Rlow_byte, BytesPerInt, Rdef_offset_addr); - __ lwz(Rhigh_byte, BytesPerInt * 2, Rdef_offset_addr); + __ get_u4(Rlow_byte, Rdef_offset_addr, BytesPerInt, InterpreterMacroAssembler::Unsigned); + __ get_u4(Rhigh_byte, Rdef_offset_addr, 2 *BytesPerInt, InterpreterMacroAssembler::Unsigned); // Check for default case (=index outside [low,high]). __ cmpw(CCR0, R17_tos, Rlow_byte); @@ -1892,12 +1896,17 @@ __ profile_switch_case(Rindex, Rhigh_byte /* scratch */, Rscratch1, Rscratch2); __ sldi(Rindex, Rindex, LogBytesPerInt); __ addi(Rindex, Rindex, 3 * BytesPerInt); +#if defined(VM_LITTLE_ENDIAN) + __ lwbrx(Roffset, Rdef_offset_addr, Rindex); + __ extsw(Roffset, Roffset); +#else __ lwax(Roffset, Rdef_offset_addr, Rindex); +#endif __ b(Ldispatch); __ bind(Ldefault_case); __ profile_switch_default(Rhigh_byte, Rscratch1); - __ lwa(Roffset, 0, Rdef_offset_addr); + __ get_u4(Roffset, Rdef_offset_addr, 0, InterpreterMacroAssembler::Signed); __ bind(Ldispatch); @@ -1913,12 +1922,11 @@ // Table switch using linear search through cases. // Bytecode stream format: // Bytecode (1) | 4-byte padding | default offset (4) | count (4) | value/offset pair1 (8) | value/offset pair2 (8) | ... -// Note: Everything is big-endian format here. So on little endian machines, we have to revers offset and count and cmp value. +// Note: Everything is big-endian format here. void TemplateTable::fast_linearswitch() { transition(itos, vtos); - Label Lloop_entry, Lsearch_loop, Lfound, Lcontinue_execution, Ldefault_case; - + Label Lloop_entry, Lsearch_loop, Lcontinue_execution, Ldefault_case; Register Rcount = R3_ARG1, Rcurrent_pair = R4_ARG2, Rdef_offset_addr = R5_ARG3, // Is going to contain address of default offset. @@ -1932,47 +1940,40 @@ __ clrrdi(Rdef_offset_addr, Rdef_offset_addr, log2_long((jlong)BytesPerInt)); // Setup loop counter and limit. - __ lwz(Rcount, BytesPerInt, Rdef_offset_addr); // Load count. + __ get_u4(Rcount, Rdef_offset_addr, BytesPerInt, InterpreterMacroAssembler::Unsigned); __ addi(Rcurrent_pair, Rdef_offset_addr, 2 * BytesPerInt); // Rcurrent_pair now points to first pair. - // Set up search loop. - __ cmpwi(CCR0, Rcount, 0); - __ beq(CCR0, Ldefault_case); - __ mtctr(Rcount); - - // linear table search - __ bind(Lsearch_loop); - - __ lwz(Rvalue, 0, Rcurrent_pair); - __ lwa(Roffset, 1 * BytesPerInt, Rcurrent_pair); - - __ cmpw(CCR0, Rvalue, Rcmp_value); - __ beq(CCR0, Lfound); - - __ addi(Rcurrent_pair, Rcurrent_pair, 2 * BytesPerInt); - __ bdnz(Lsearch_loop); - - // default case + __ cmpwi(CCR0, Rcount, 0); + __ bne(CCR0, Lloop_entry); + + // Default case __ bind(Ldefault_case); - - __ lwa(Roffset, 0, Rdef_offset_addr); + __ get_u4(Roffset, Rdef_offset_addr, 0, InterpreterMacroAssembler::Signed); if (ProfileInterpreter) { __ profile_switch_default(Rdef_offset_addr, Rcount/* scratch */); - __ b(Lcontinue_execution); } - - // Entry found, skip Roffset bytecodes and continue. - __ bind(Lfound); + __ b(Lcontinue_execution); + + // Next iteration + __ bind(Lsearch_loop); + __ bdz(Ldefault_case); + __ addi(Rcurrent_pair, Rcurrent_pair, 2 * BytesPerInt); + __ bind(Lloop_entry); + __ get_u4(Rvalue, Rcurrent_pair, 0, InterpreterMacroAssembler::Unsigned); + __ cmpw(CCR0, Rvalue, Rcmp_value); + __ bne(CCR0, Lsearch_loop); + + // Found, load offset. + __ get_u4(Roffset, Rcurrent_pair, BytesPerInt, InterpreterMacroAssembler::Signed); + // Calculate case index and profile + __ mfctr(Rcurrent_pair); if (ProfileInterpreter) { - // Calc the num of the pair we hit. Careful, Rcurrent_pair points 2 ints - // beyond the actual current pair due to the auto update load above! - __ sub(Rcurrent_pair, Rcurrent_pair, Rdef_offset_addr); - __ addi(Rcurrent_pair, Rcurrent_pair, - 2 * BytesPerInt); - __ srdi(Rcurrent_pair, Rcurrent_pair, LogBytesPerInt + 1); + __ sub(Rcurrent_pair, Rcount, Rcurrent_pair); __ profile_switch_case(Rcurrent_pair, Rcount /*scratch*/, Rdef_offset_addr/*scratch*/, Rscratch); - __ bind(Lcontinue_execution); } + + __ bind(Lcontinue_execution); __ add(R14_bcp, Roffset, R14_bcp); __ dispatch_next(vtos); } @@ -2028,7 +2029,7 @@ // ... initialize i & j ... __ li(Ri,0); - __ lwz(Rj, -BytesPerInt, Rarray); + __ get_u4(Rj, Rarray, -BytesPerInt, InterpreterMacroAssembler::Unsigned); // ... and start. Label entry; @@ -2045,7 +2046,11 @@ // i = h; // } __ sldi(Rscratch, Rh, log_entry_size); +#if defined(VM_LITTLE_ENDIAN) + __ lwbrx(Rscratch, Rscratch, Rarray); +#else __ lwzx(Rscratch, Rscratch, Rarray); +#endif // if (key < current value) // Rh = Rj @@ -2077,20 +2082,20 @@ // Ri = value offset __ sldi(Ri, Ri, log_entry_size); __ add(Ri, Ri, Rarray); - __ lwz(Rscratch, 0, Ri); + __ get_u4(Rscratch, Ri, 0, InterpreterMacroAssembler::Unsigned); Label not_found; // Ri = offset offset __ cmpw(CCR0, Rkey, Rscratch); __ beq(CCR0, not_found); // entry not found -> j = default offset - __ lwz(Rj, -2 * BytesPerInt, Rarray); + __ get_u4(Rj, Rarray, -2 * BytesPerInt, InterpreterMacroAssembler::Unsigned); __ b(default_case); __ bind(not_found); // entry found -> j = offset __ profile_switch_case(Rh, Rj, Rscratch, Rkey); - __ lwz(Rj, BytesPerInt, Ri); + __ get_u4(Rj, Ri, BytesPerInt, InterpreterMacroAssembler::Unsigned); if (ProfileInterpreter) { __ b(continue_execution); @@ -2194,8 +2199,11 @@ } else { assert(byte_no == f1_byte || byte_no == f2_byte, "byte_no out of range"); // We are resolved if the indices offset contains the current bytecode. - // Big Endian: - __ lbz(Rscratch, in_bytes(constantPoolCacheOopDesc::base_offset() + ConstantPoolCacheEntry::indices_offset()) + 7 - (byte_no + 1), Rcache); +#if defined(VM_LITTLE_ENDIAN) + __ lbz(Rscratch, in_bytes(constantPoolCacheOopDesc::base_offset() + ConstantPoolCacheEntry::indices_offset()) + byte_no + 1, Rcache); +#else + __ lbz(Rscratch, in_bytes(constantPoolCacheOopDesc::base_offset() + ConstantPoolCacheEntry::indices_offset()) + 7 - (byte_no + 1), Rcache); +#endif // Acquire by cmp-br-isync (see below). __ cmpdi(CCR0, Rscratch, (int)bytecode()); __ beq(CCR0, Lresolved);
--- a/src/cpu/zero/vm/globals_zero.hpp Mon Aug 11 15:09:20 2014 +0100 +++ b/src/cpu/zero/vm/globals_zero.hpp Mon Aug 11 16:38:33 2014 +0100 @@ -70,4 +70,5 @@ develop(bool, TrapBasedRangeChecks, false, \ "Not supported on this platform.") \ + #endif // CPU_ZERO_VM_GLOBALS_ZERO_HPP
--- a/src/os/aix/vm/os_aix.cpp Mon Aug 11 15:09:20 2014 +0100 +++ b/src/os/aix/vm/os_aix.cpp Mon Aug 11 16:38:33 2014 +0100 @@ -2728,7 +2728,7 @@ } } // end: os::large_page_init() -char* os::reserve_memory_special(size_t bytes, char* req_addr, bool exec) { +char* os::reserve_memory_special(size_t bytes, size_t alignment, char* req_addr, bool exec) { // "exec" is passed in but not used. Creating the shared image for // the code cache doesn't have an SHM_X executable permission to check. Unimplemented(); @@ -5129,3 +5129,9 @@ return strlen(buffer); } + +#ifndef PRODUCT +void TestReserveMemorySpecial_test() { + // No tests available for this platform +} +#endif
--- a/src/share/vm/code/nmethod.hpp Mon Aug 11 15:09:20 2014 +0100 +++ b/src/share/vm/code/nmethod.hpp Mon Aug 11 16:38:33 2014 +0100 @@ -69,7 +69,12 @@ friend class VMStructs; private: enum { cache_size = 4 }; - PcDesc* _pc_descs[cache_size]; // last cache_size pc_descs found + // The array elements MUST be volatile! Several threads may modify + // and read from the cache concurrently. find_pc_desc_internal has + // returned wrong results. C++ compiler (namely xlC12) may duplicate + // C++ field accesses if the elements are not volatile. + typedef PcDesc* PcDescPtr; + volatile PcDescPtr _pc_descs[cache_size]; // last cache_size pc_descs found public: PcDescCache() { debug_only(_pc_descs[0] = NULL); } void reset_to(PcDesc* initial_pc_desc);