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7178145: Change constMethodOop::_exception_table to optionally inlined u2 table

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Change constMethodOop::_exception_table to optionally inlined u2 table.

Reviewed-by: bdelsart, coleenp, kamg
This commit is contained in:
Jiangli Zhou 2012-06-26 19:08:44 -04:00
parent 97cc5e6c44
commit 56df3bd48d
28 changed files with 568 additions and 317 deletions
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19
hotspot/src/share/vm/prims/jvmtiClassFileReconstituter.cpp
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@ -191,15 +191,14 @@ void JvmtiClassFileReconstituter::write_code_attribute(methodHandle method) {
}
}
typeArrayHandle exception_table(thread(), const_method->exception_table());
int exception_table_length = exception_table->length();
int exception_table_entries = exception_table_length / 4;
ExceptionTable exception_table(method());
int exception_table_length = exception_table.length();
int code_size = const_method->code_size();
int size =
2+2+4 + // max_stack, max_locals, code_length
code_size + // code
2 + // exception_table_length
(2+2+2+2) * exception_table_entries + // exception_table
(2+2+2+2) * exception_table_length + // exception_table
2 + // attributes_count
attr_size; // attributes
@ -209,12 +208,12 @@ void JvmtiClassFileReconstituter::write_code_attribute(methodHandle method) {
write_u2(method->max_locals());
write_u4(code_size);
copy_bytecodes(method, (unsigned char*)writeable_address(code_size));
write_u2(exception_table_entries);
for (int index = 0; index < exception_table_length; ) {
write_u2(exception_table->int_at(index++));
write_u2(exception_table->int_at(index++));
write_u2(exception_table->int_at(index++));
write_u2(exception_table->int_at(index++));
write_u2(exception_table_length);
for (int index = 0; index < exception_table_length; index++) {
write_u2(exception_table.start_pc(index));
write_u2(exception_table.end_pc(index));
write_u2(exception_table.handler_pc(index));
write_u2(exception_table.catch_type_index(index));
}
write_u2(attr_count);
if (line_num_cnt != 0) {