inline void MacroAssembler::jump_indirect_to(Address& a, Register temp,
int ld_offset, int jmp_offset) {
assert_not_delayed();
//sethi(al); // sethi is caller responsibility for this one
ld_ptr(a, temp, ld_offset);
jmp(temp, jmp_offset);
}
// This code sequence is relocatable to any address, even on LP64.
inline void MacroAssembler::jumpl_to(const AddressLiteral& addrlit, Register temp, Register d, int offset) {
assert_not_delayed();
// Force fixed length sethi because NativeJump and NativeFarCall don't handle
// variable length instruction streams.
patchable_sethi(addrlit, temp);
jmpl(temp, addrlit.low10() + offset, d);
}
inline void MacroAssembler::store_ptr_contents(Register s, const AddressLiteral& addrlit, Register temp, int offset) {
assert_not_delayed();
if (ForceUnreachable) {
patchable_sethi(addrlit, temp);
} else {
sethi(addrlit, temp);
}
st_ptr(s, temp, addrlit.low10() + offset);
}
inline void MacroAssembler::load_ptr_contents(const AddressLiteral& addrlit, Register d, int offset) {
assert_not_delayed();
if (ForceUnreachable) {
patchable_sethi(addrlit, d);
} else {
sethi(addrlit, d);
}
ld_ptr(d, addrlit.low10() + offset, d);
}
int StubAssembler::call_RT(Register oop_result1, Register metadata_result, address entry_point, int number_of_arguments) {
// for sparc changing the number of arguments doesn't change
// anything about the frame size so we'll always lie and claim that
// we are only passing 1 argument.
set_num_rt_args(1);
assert_not_delayed();
// bang stack before going to runtime
set(-os::vm_page_size() + STACK_BIAS, G3_scratch);
st(G0, SP, G3_scratch);
// debugging support
assert(number_of_arguments >= 0 , "cannot have negative number of arguments");
set_last_Java_frame(SP, noreg);
if (VerifyThread) mov(G2_thread, O0); // about to be smashed; pass early
save_thread(L7_thread_cache);
// do the call
call(entry_point, relocInfo::runtime_call_type);
if (!VerifyThread) {
delayed()->mov(G2_thread, O0); // pass thread as first argument
} else {
delayed()->nop(); // (thread already passed)
}
int call_offset = offset(); // offset of return address
restore_thread(L7_thread_cache);
reset_last_Java_frame();
// check for pending exceptions
{ Label L;
Address exception_addr(G2_thread, Thread::pending_exception_offset());
ld_ptr(exception_addr, Gtemp);
br_null_short(Gtemp, pt, L);
Address vm_result_addr(G2_thread, JavaThread::vm_result_offset());
st_ptr(G0, vm_result_addr);
Address vm_result_addr_2(G2_thread, JavaThread::vm_result_2_offset());
st_ptr(G0, vm_result_addr_2);
if (frame_size() == no_frame_size) {
// we use O7 linkage so that forward_exception_entry has the issuing PC
call(StubRoutines::forward_exception_entry(), relocInfo::runtime_call_type);
delayed()->restore();
} else if (_stub_id == Runtime1::forward_exception_id) {
should_not_reach_here();
} else {
AddressLiteral exc(Runtime1::entry_for(Runtime1::forward_exception_id));
jump_to(exc, G4);
delayed()->nop();
}
bind(L);
}
// get oop result if there is one and reset the value in the thread
if (oop_result1->is_valid()) { // get oop result if there is one and reset it in the thread
get_vm_result (oop_result1);
} else {
// be a little paranoid and clear the result
Address vm_result_addr(G2_thread, JavaThread::vm_result_offset());
st_ptr(G0, vm_result_addr);
}
// get second result if there is one and reset the value in the thread
if (metadata_result->is_valid()) {
get_vm_result_2 (metadata_result);
} else {
// be a little paranoid and clear the result
Address vm_result_addr_2(G2_thread, JavaThread::vm_result_2_offset());
st_ptr(G0, vm_result_addr_2);
}
return call_offset;
}
