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7116786: RFE: Detailed information on VerifyErrors

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Provide additional detail in VerifyError messages

Reviewed-by: sspitsyn, acorn
This commit is contained in:
Keith McGuigan 2012-08-06 15:54:45 -04:00
parent 75f8f79764
commit dbe25e46f3
16 changed files with 1606 additions and 429 deletions
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46
hotspot/src/share/vm/utilities/ostream.cpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1997, 2012, Oracle and/or its affiliates. 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
@ -237,8 +237,9 @@ void outputStream::date_stamp(bool guard,
return;
}
void outputStream::indent() {
outputStream& outputStream::indent() {
while (_position < _indentation) sp();
return *this;
}
void outputStream::print_jlong(jlong value) {
@ -251,6 +252,47 @@ void outputStream::print_julong(julong value) {
print(os::julong_format_specifier(), value);
}
/**
* This prints out hex data in a 'windbg' or 'xxd' form, where each line is:
* <hex-address>: 8 * <hex-halfword> <ascii translation (optional)>
* example:
* 0000000: 7f44 4f46 0102 0102 0000 0000 0000 0000 .DOF............
* 0000010: 0000 0000 0000 0040 0000 0020 0000 0005 .......@... ....
* 0000020: 0000 0000 0000 0040 0000 0000 0000 015d .......@.......]
* ...
*
* indent is applied to each line. Ends with a CR.
*/
void outputStream::print_data(void* data, size_t len, bool with_ascii) {
size_t limit = (len + 16) / 16 * 16;
for (size_t i = 0; i < limit; ++i) {
if (i % 16 == 0) {
indent().print("%07x:", i);
}
if (i % 2 == 0) {
print(" ");
}
if (i < len) {
print("%02x", ((unsigned char*)data)[i]);
} else {
print(" ");
}
if ((i + 1) % 16 == 0) {
if (with_ascii) {
print(" ");
for (size_t j = 0; j < 16; ++j) {
size_t idx = i + j - 15;
if (idx < len) {
char c = ((char*)data)[idx];
print("%c", c >= 32 && c <= 126 ? c : '.');
}
}
}
print_cr("");
}
}
}
stringStream::stringStream(size_t initial_size) : outputStream() {
buffer_length = initial_size;
buffer = NEW_RESOURCE_ARRAY(char, buffer_length);