1.1 --- a/src/cpu/sparc/vm/disassembler_sparc.cpp Thu Apr 10 15:49:16 2008 -0400
1.2 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000
1.3 @@ -1,230 +0,0 @@
1.4 -/*
1.5 - * Copyright 1997-2007 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/_disassembler_sparc.cpp.incl"
1.30 -
1.31 -#ifndef PRODUCT
1.32 -
1.33 -#define SPARC_VERSION (VM_Version::v9_instructions_work()? \
1.34 - (VM_Version::v8_instructions_work()? "" : "9") : "8")
1.35 -
1.36 -// This routine is in the shared library:
1.37 -typedef unsigned char* print_insn_sparc_t(unsigned char* start, DisassemblerEnv* env,
1.38 - const char* sparc_version);
1.39 -
1.40 -void* Disassembler::_library = NULL;
1.41 -dll_func Disassembler::_print_insn_sparc = NULL;
1.42 -
1.43 -bool Disassembler::load_library() {
1.44 - if (_library == NULL) {
1.45 - char buf[1024];
1.46 - char ebuf[1024];
1.47 - sprintf(buf, "disassembler%s", os::dll_file_extension());
1.48 - _library = hpi::dll_load(buf, ebuf, sizeof ebuf);
1.49 - if (_library != NULL) {
1.50 - tty->print_cr("Loaded disassembler");
1.51 - _print_insn_sparc = CAST_TO_FN_PTR(dll_func, hpi::dll_lookup(_library, "print_insn_sparc"));
1.52 - }
1.53 - }
1.54 - return (_library != NULL) && (_print_insn_sparc != NULL);
1.55 -}
1.56 -
1.57 -
1.58 -class sparc_env : public DisassemblerEnv {
1.59 - private:
1.60 - nmethod* code;
1.61 - outputStream* output;
1.62 - const char* version;
1.63 -
1.64 - static void print_address(address value, outputStream* st);
1.65 -
1.66 - public:
1.67 - sparc_env(nmethod* rcode, outputStream* routput) {
1.68 - code = rcode;
1.69 - output = routput;
1.70 - version = SPARC_VERSION;
1.71 - }
1.72 - const char* sparc_version() { return version; }
1.73 - void print_label(intptr_t value);
1.74 - void print_raw(char* str) { output->print_raw(str); }
1.75 - void print(char* format, ...);
1.76 - char* string_for_offset(intptr_t value);
1.77 - char* string_for_constant(unsigned char* pc, intptr_t value, int is_decimal);
1.78 -};
1.79 -
1.80 -
1.81 -void sparc_env::print_address(address adr, outputStream* st) {
1.82 - if (!Universe::is_fully_initialized()) {
1.83 - st->print(INTPTR_FORMAT, (intptr_t)adr);
1.84 - return;
1.85 - }
1.86 - if (StubRoutines::contains(adr)) {
1.87 - StubCodeDesc *desc = StubCodeDesc::desc_for(adr);
1.88 - if (desc == NULL)
1.89 - desc = StubCodeDesc::desc_for(adr + frame::pc_return_offset);
1.90 - if (desc == NULL)
1.91 - st->print("Unknown stub at " INTPTR_FORMAT, adr);
1.92 - else {
1.93 - st->print("Stub::%s", desc->name());
1.94 - if (desc->begin() != adr)
1.95 - st->print("%+d 0x%p",adr - desc->begin(), adr);
1.96 - else if (WizardMode) st->print(" " INTPTR_FORMAT, adr);
1.97 - }
1.98 - } else {
1.99 - BarrierSet* bs = Universe::heap()->barrier_set();
1.100 - if (bs->kind() == BarrierSet::CardTableModRef &&
1.101 - adr == (address)((CardTableModRefBS*)(bs))->byte_map_base) {
1.102 - st->print("word_map_base");
1.103 - if (WizardMode) st->print(" " INTPTR_FORMAT, (intptr_t)adr);
1.104 - } else {
1.105 - st->print(INTPTR_FORMAT, (intptr_t)adr);
1.106 - }
1.107 - }
1.108 -}
1.109 -
1.110 -
1.111 -// called by the disassembler to print out jump addresses
1.112 -void sparc_env::print_label(intptr_t value) {
1.113 - print_address((address) value, output);
1.114 -}
1.115 -
1.116 -void sparc_env::print(char* format, ...) {
1.117 - va_list ap;
1.118 - va_start(ap, format);
1.119 - output->vprint(format, ap);
1.120 - va_end(ap);
1.121 -}
1.122 -
1.123 -char* sparc_env::string_for_offset(intptr_t value) {
1.124 - stringStream st;
1.125 - print_address((address) value, &st);
1.126 - return st.as_string();
1.127 -}
1.128 -
1.129 -char* sparc_env::string_for_constant(unsigned char* pc, intptr_t value, int is_decimal) {
1.130 - stringStream st;
1.131 - oop obj;
1.132 - if (code && (obj = code->embeddedOop_at(pc)) != NULL) {
1.133 - obj->print_value_on(&st);
1.134 - } else
1.135 - {
1.136 - print_address((address) value, &st);
1.137 - }
1.138 - return st.as_string();
1.139 -}
1.140 -
1.141 -
1.142 -address Disassembler::decode_instruction(address start, DisassemblerEnv* env) {
1.143 - const char* version = ((sparc_env*)env)->sparc_version();
1.144 - return ((print_insn_sparc_t*) _print_insn_sparc)(start, env, version);
1.145 -}
1.146 -
1.147 -
1.148 -const int show_bytes = false; // for disassembler debugging
1.149 -
1.150 -
1.151 -void Disassembler::decode(CodeBlob* cb, outputStream* st) {
1.152 - st = st ? st : tty;
1.153 - st->print_cr("Decoding CodeBlob " INTPTR_FORMAT, cb);
1.154 - decode(cb->instructions_begin(), cb->instructions_end(), st);
1.155 -}
1.156 -
1.157 -
1.158 -void Disassembler::decode(u_char* begin, u_char* end, outputStream* st) {
1.159 - assert ((((intptr_t)begin | (intptr_t)end) % sizeof(int) == 0), "misaligned insn addr");
1.160 - st = st ? st : tty;
1.161 - if (!load_library()) {
1.162 - st->print_cr("Could not load disassembler");
1.163 - return;
1.164 - }
1.165 - sparc_env env(NULL, st);
1.166 - unsigned char* p = (unsigned char*) begin;
1.167 - CodeBlob* cb = CodeCache::find_blob_unsafe(begin);
1.168 - while (p < (unsigned char*) end && p) {
1.169 - if (cb != NULL) {
1.170 - cb->print_block_comment(st, (intptr_t)(p - cb->instructions_begin()));
1.171 - }
1.172 -
1.173 - unsigned char* p0 = p;
1.174 - st->print(INTPTR_FORMAT ": ", p);
1.175 - p = decode_instruction(p, &env);
1.176 - if (show_bytes && p) {
1.177 - st->print("\t\t\t");
1.178 - while (p0 < p) { st->print("%08lx ", *(int*)p0); p0 += sizeof(int); }
1.179 - }
1.180 - st->cr();
1.181 - }
1.182 -}
1.183 -
1.184 -
1.185 -void Disassembler::decode(nmethod* nm, outputStream* st) {
1.186 - st = st ? st : tty;
1.187 -
1.188 - st->print_cr("Decoding compiled method " INTPTR_FORMAT ":", nm);
1.189 - st->print("Code:");
1.190 - st->cr();
1.191 -
1.192 - if (!load_library()) {
1.193 - st->print_cr("Could not load disassembler");
1.194 - return;
1.195 - }
1.196 - sparc_env env(nm, st);
1.197 - unsigned char* p = nm->instructions_begin();
1.198 - unsigned char* end = nm->instructions_end();
1.199 - assert ((((intptr_t)p | (intptr_t)end) % sizeof(int) == 0), "misaligned insn addr");
1.200 -
1.201 - unsigned char *p1 = p;
1.202 - int total_bucket_count = 0;
1.203 - while (p1 < end && p1) {
1.204 - unsigned char *p0 = p1;
1.205 - ++p1;
1.206 - address bucket_pc = FlatProfiler::bucket_start_for(p1);
1.207 - if (bucket_pc != NULL && bucket_pc > p0 && bucket_pc <= p1)
1.208 - total_bucket_count += FlatProfiler::bucket_count_for(p0);
1.209 - }
1.210 -
1.211 - while (p < end && p) {
1.212 - if (p == nm->entry_point()) st->print_cr("[Entry Point]");
1.213 - if (p == nm->verified_entry_point()) st->print_cr("[Verified Entry Point]");
1.214 - if (p == nm->exception_begin()) st->print_cr("[Exception Handler]");
1.215 - if (p == nm->stub_begin()) st->print_cr("[Stub Code]");
1.216 - if (p == nm->consts_begin()) st->print_cr("[Constants]");
1.217 - nm->print_block_comment(st, (intptr_t)(p - nm->instructions_begin()));
1.218 - unsigned char* p0 = p;
1.219 - st->print(" " INTPTR_FORMAT ": ", p);
1.220 - p = decode_instruction(p, &env);
1.221 - nm->print_code_comment_on(st, 40, p0, p);
1.222 - st->cr();
1.223 - // Output pc bucket ticks if we have any
1.224 - address bucket_pc = FlatProfiler::bucket_start_for(p);
1.225 - if (bucket_pc != NULL && bucket_pc > p0 && bucket_pc <= p) {
1.226 - int bucket_count = FlatProfiler::bucket_count_for(p0);
1.227 - tty->print_cr("%3.1f%% [%d]", bucket_count*100.0/total_bucket_count, bucket_count);
1.228 - tty->cr();
1.229 - }
1.230 - }
1.231 -}
1.232 -
1.233 -#endif // PRODUCT
