Mercurial > hg > graal-compiler
view src/cpu/sparc/vm/disassembler_sparc.cpp @ 87:ad0b851458ff jdk7-b26
Merge
author | trims |
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date | Tue, 22 Apr 2008 15:36:18 -0700 |
parents | a61af66fc99e |
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/* * Copyright 1997-2007 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/_disassembler_sparc.cpp.incl" #ifndef PRODUCT #define SPARC_VERSION (VM_Version::v9_instructions_work()? \ (VM_Version::v8_instructions_work()? "" : "9") : "8") // This routine is in the shared library: typedef unsigned char* print_insn_sparc_t(unsigned char* start, DisassemblerEnv* env, const char* sparc_version); void* Disassembler::_library = NULL; dll_func Disassembler::_print_insn_sparc = NULL; bool Disassembler::load_library() { if (_library == NULL) { char buf[1024]; char ebuf[1024]; sprintf(buf, "disassembler%s", os::dll_file_extension()); _library = hpi::dll_load(buf, ebuf, sizeof ebuf); if (_library != NULL) { tty->print_cr("Loaded disassembler"); _print_insn_sparc = CAST_TO_FN_PTR(dll_func, hpi::dll_lookup(_library, "print_insn_sparc")); } } return (_library != NULL) && (_print_insn_sparc != NULL); } class sparc_env : public DisassemblerEnv { private: nmethod* code; outputStream* output; const char* version; static void print_address(address value, outputStream* st); public: sparc_env(nmethod* rcode, outputStream* routput) { code = rcode; output = routput; version = SPARC_VERSION; } const char* sparc_version() { return version; } void print_label(intptr_t value); void print_raw(char* str) { output->print_raw(str); } void print(char* format, ...); char* string_for_offset(intptr_t value); char* string_for_constant(unsigned char* pc, intptr_t value, int is_decimal); }; void sparc_env::print_address(address adr, outputStream* st) { if (!Universe::is_fully_initialized()) { st->print(INTPTR_FORMAT, (intptr_t)adr); return; } if (StubRoutines::contains(adr)) { StubCodeDesc *desc = StubCodeDesc::desc_for(adr); if (desc == NULL) desc = StubCodeDesc::desc_for(adr + frame::pc_return_offset); if (desc == NULL) st->print("Unknown stub at " INTPTR_FORMAT, adr); else { st->print("Stub::%s", desc->name()); if (desc->begin() != adr) st->print("%+d 0x%p",adr - desc->begin(), adr); else if (WizardMode) st->print(" " INTPTR_FORMAT, adr); } } else { BarrierSet* bs = Universe::heap()->barrier_set(); if (bs->kind() == BarrierSet::CardTableModRef && adr == (address)((CardTableModRefBS*)(bs))->byte_map_base) { st->print("word_map_base"); if (WizardMode) st->print(" " INTPTR_FORMAT, (intptr_t)adr); } else { st->print(INTPTR_FORMAT, (intptr_t)adr); } } } // called by the disassembler to print out jump addresses void sparc_env::print_label(intptr_t value) { print_address((address) value, output); } void sparc_env::print(char* format, ...) { va_list ap; va_start(ap, format); output->vprint(format, ap); va_end(ap); } char* sparc_env::string_for_offset(intptr_t value) { stringStream st; print_address((address) value, &st); return st.as_string(); } char* sparc_env::string_for_constant(unsigned char* pc, intptr_t value, int is_decimal) { stringStream st; oop obj; if (code && (obj = code->embeddedOop_at(pc)) != NULL) { obj->print_value_on(&st); } else { print_address((address) value, &st); } return st.as_string(); } address Disassembler::decode_instruction(address start, DisassemblerEnv* env) { const char* version = ((sparc_env*)env)->sparc_version(); return ((print_insn_sparc_t*) _print_insn_sparc)(start, env, version); } const int show_bytes = false; // for disassembler debugging void Disassembler::decode(CodeBlob* cb, outputStream* st) { st = st ? st : tty; st->print_cr("Decoding CodeBlob " INTPTR_FORMAT, cb); decode(cb->instructions_begin(), cb->instructions_end(), st); } void Disassembler::decode(u_char* begin, u_char* end, outputStream* st) { assert ((((intptr_t)begin | (intptr_t)end) % sizeof(int) == 0), "misaligned insn addr"); st = st ? st : tty; if (!load_library()) { st->print_cr("Could not load disassembler"); return; } sparc_env env(NULL, st); unsigned char* p = (unsigned char*) begin; CodeBlob* cb = CodeCache::find_blob_unsafe(begin); while (p < (unsigned char*) end && p) { if (cb != NULL) { cb->print_block_comment(st, (intptr_t)(p - cb->instructions_begin())); } unsigned char* p0 = p; st->print(INTPTR_FORMAT ": ", p); p = decode_instruction(p, &env); if (show_bytes && p) { st->print("\t\t\t"); while (p0 < p) { st->print("%08lx ", *(int*)p0); p0 += sizeof(int); } } st->cr(); } } void Disassembler::decode(nmethod* nm, outputStream* st) { st = st ? st : tty; st->print_cr("Decoding compiled method " INTPTR_FORMAT ":", nm); st->print("Code:"); st->cr(); if (!load_library()) { st->print_cr("Could not load disassembler"); return; } sparc_env env(nm, st); unsigned char* p = nm->instructions_begin(); unsigned char* end = nm->instructions_end(); assert ((((intptr_t)p | (intptr_t)end) % sizeof(int) == 0), "misaligned insn addr"); unsigned char *p1 = p; int total_bucket_count = 0; while (p1 < end && p1) { unsigned char *p0 = p1; ++p1; address bucket_pc = FlatProfiler::bucket_start_for(p1); if (bucket_pc != NULL && bucket_pc > p0 && bucket_pc <= p1) total_bucket_count += FlatProfiler::bucket_count_for(p0); } while (p < end && p) { if (p == nm->entry_point()) st->print_cr("[Entry Point]"); if (p == nm->verified_entry_point()) st->print_cr("[Verified Entry Point]"); if (p == nm->exception_begin()) st->print_cr("[Exception Handler]"); if (p == nm->stub_begin()) st->print_cr("[Stub Code]"); if (p == nm->consts_begin()) st->print_cr("[Constants]"); nm->print_block_comment(st, (intptr_t)(p - nm->instructions_begin())); unsigned char* p0 = p; st->print(" " INTPTR_FORMAT ": ", p); p = decode_instruction(p, &env); nm->print_code_comment_on(st, 40, p0, p); st->cr(); // Output pc bucket ticks if we have any address bucket_pc = FlatProfiler::bucket_start_for(p); if (bucket_pc != NULL && bucket_pc > p0 && bucket_pc <= p) { int bucket_count = FlatProfiler::bucket_count_for(p0); tty->print_cr("%3.1f%% [%d]", bucket_count*100.0/total_bucket_count, bucket_count); tty->cr(); } } } #endif // PRODUCT