// At a breakpoint instruction, this returns the breakpoint's length,
// otherwise, it's the same as special_length_at(). This is used by
// the RawByteCodeStream, which wants to see the actual bytecode
// values (including breakpoint). RawByteCodeStream is used by the
// verifier when reading in bytecode to verify. Other mechanisms that
// run at runtime (such as generateOopMaps) need to iterate over the code
// and don't expect to see breakpoints: they want to see the instruction
// which was replaced so that they can get the correct length and find
// the next bytecode.
//
// 'end' indicates the end of the code buffer, which we should not try to read
// past.
int Bytecodes::raw_special_length_at(address bcp, address end) {
Code code = code_or_bp_at(bcp);
if (code == _breakpoint) {
return 1;
} else {
return special_length_at(code, bcp, end);
}
}
static int java_length_at(address bcp,methodOop method=NULL) {
int l=length_for(java_code_at(bcp,method));
return l>0?l:special_length_at(bcp);
}
static int length_at (address bcp) {
int l = length_for(code_at(bcp));
return l > 0 ? l : special_length_at(bcp);
}
