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8219860: Cleanup ClassFileParser::parse_linenumber_table

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Reviewed-by: rehn, lfoltan, hseigel
This commit is contained in:
Claes Redestad 2019-03-08 23:02:06 +01:00
parent 69a6a6c4a0
commit d2c205bb59
10 changed files with 85 additions and 332 deletions
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64
src/hotspot/share/classfile/classFileStream.cpp
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@ -30,7 +30,6 @@
#include "memory/resourceArea.hpp"
const bool ClassFileStream::verify = true;
const bool ClassFileStream::no_verification = false;
void ClassFileStream::truncated_file_error(TRAPS) const {
THROW_MSG(vmSymbols::java_lang_ClassFormatError(), "Truncated class file");
@ -73,69 +72,6 @@ const ClassFileStream* ClassFileStream::clone() const {
need_verify());
}
u1 ClassFileStream::get_u1(TRAPS) const {
if (_need_verify) {
guarantee_more(1, CHECK_0);
} else {
assert(1 <= _buffer_end - _current, "buffer overflow");
}
return *_current++;
}
u2 ClassFileStream::get_u2(TRAPS) const {
if (_need_verify) {
guarantee_more(2, CHECK_0);
} else {
assert(2 <= _buffer_end - _current, "buffer overflow");
}
const u1* tmp = _current;
_current += 2;
return Bytes::get_Java_u2((address)tmp);
}
u4 ClassFileStream::get_u4(TRAPS) const {
if (_need_verify) {
guarantee_more(4, CHECK_0);
} else {
assert(4 <= _buffer_end - _current, "buffer overflow");
}
const u1* tmp = _current;
_current += 4;
return Bytes::get_Java_u4((address)tmp);
}
u8 ClassFileStream::get_u8(TRAPS) const {
if (_need_verify) {
guarantee_more(8, CHECK_0);
} else {
assert(8 <= _buffer_end - _current, "buffer overflow");
}
const u1* tmp = _current;
_current += 8;
return Bytes::get_Java_u8((address)tmp);
}
void ClassFileStream::skip_u1(int length, TRAPS) const {
if (_need_verify) {
guarantee_more(length, CHECK);
}
_current += length;
}
void ClassFileStream::skip_u2(int length, TRAPS) const {
if (_need_verify) {
guarantee_more(length * 2, CHECK);
}
_current += length * 2;
}
void ClassFileStream::skip_u4(int length, TRAPS) const {
if (_need_verify) {
guarantee_more(length * 4, CHECK);
}
_current += length * 4;
}
uint64_t ClassFileStream::compute_fingerprint() const {
int classfile_size = length();
int classfile_crc = ClassLoader::crc32(0, (const char*)buffer(), length());