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8219214: Infinite Loop in CodeSection::dump()

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Reviewed-by: kvn, thartmann
This commit is contained in:
Lutz Schmidt 2019-03-06 12:14:47 +01:00
parent d569301f4e
commit 97807df5ba
2 changed files with 1 additions and 40 deletions
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38
src/hotspot/share/asm/codeBuffer.cpp
View file

@ -1,5 +1,5 @@
/* /*
* Copyright (c) 1997, 2018, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 1997, 2019, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* *
* This code is free software; you can redistribute it and/or modify it * This code is free software; you can redistribute it and/or modify it
@ -1029,26 +1029,10 @@ void CodeBuffer::log_section_sizes(const char* name) {
#ifndef PRODUCT #ifndef PRODUCT
void CodeSection::dump() {
address ptr = start();
for (csize_t step; ptr < end(); ptr += step) {
step = end() - ptr;
if (step > jintSize * 4) step = jintSize * 4;
tty->print(INTPTR_FORMAT ": ", p2i(ptr));
while (step > 0) {
tty->print(" " PTR32_FORMAT, *(jint*)ptr);
ptr += jintSize;
}
tty->cr();
}
}
void CodeSection::decode() { void CodeSection::decode() {
Disassembler::decode(start(), end()); Disassembler::decode(start(), end());
} }
void CodeBuffer::block_comment(intptr_t offset, const char * comment) { void CodeBuffer::block_comment(intptr_t offset, const char * comment) {
_code_strings.add_comment(offset, comment); _code_strings.add_comment(offset, comment);
} }
@ -1205,26 +1189,6 @@ void CodeBuffer::decode() {
_decode_begin = insts_end(); _decode_begin = insts_end();
} }
void CodeBuffer::skip_decode() {
_decode_begin = insts_end();
}
void CodeBuffer::decode_all() {
ttyLocker ttyl;
for (int n = 0; n < (int)SECT_LIMIT; n++) {
// dump contents of each section
CodeSection* cs = code_section(n);
tty->print_cr("! %s:", code_section_name(n));
if (cs != consts())
cs->decode();
else
cs->dump();
}
}
void CodeSection::print(const char* name) { void CodeSection::print(const char* name) {
csize_t locs_size = locs_end() - locs_start(); csize_t locs_size = locs_end() - locs_start();
tty->print_cr(" %7s.code = " PTR_FORMAT " : " PTR_FORMAT " : " PTR_FORMAT " (%d of %d)%s", tty->print_cr(" %7s.code = " PTR_FORMAT " : " PTR_FORMAT " : " PTR_FORMAT " (%d of %d)%s",

3
src/hotspot/share/asm/codeBuffer.hpp
View file

@ -240,7 +240,6 @@ class CodeSection {
#ifndef PRODUCT #ifndef PRODUCT
void decode(); void decode();
void dump();
void print(const char* name); void print(const char* name);
#endif //PRODUCT #endif //PRODUCT
}; };
@ -649,8 +648,6 @@ class CodeBuffer: public StackObj {
// Printing / Decoding // Printing / Decoding
// decodes from decode_begin() to code_end() and sets decode_begin to end // decodes from decode_begin() to code_end() and sets decode_begin to end
void decode(); void decode();
void decode_all(); // decodes all the code
void skip_decode(); // sets decode_begin to code_end();
void print(); void print();
#endif #endif