// Inform CodeBuffer that incoming code and relocation will be for stubs
address AbstractAssembler::start_a_const(int required_space, int required_align) {
CodeBuffer* cb = code();
CodeSection* cs = cb->consts();
assert(_code_section == cb->insts() || _code_section == cb->stubs(), "not in insts/stubs?");
address end = cs->end();
int pad = -(intptr_t)end & (required_align-1);
if (cs->maybe_expand_to_ensure_remaining(pad + required_space)) {
if (cb->blob() == NULL) return NULL;
end = cs->end(); // refresh pointer
}
if (pad > 0) {
while (--pad >= 0) { *end++ = 0; }
cs->set_end(end);
}
set_code_section(cs);
return end;
}
AbstractAssembler::AbstractAssembler(CodeBuffer* code) {
if (code == NULL) return;
CodeSection* cs = code->insts();
cs->clear_mark(); // new assembler kills old mark
_code_section = cs;
_code_begin = cs->start();
_code_limit = cs->limit();
_code_pos = cs->end();
_oop_recorder= code->oop_recorder();
if (_code_begin == NULL) {
vm_exit_out_of_memory1(0, "CodeCache: no room for %s", code->name());
}
}
