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Fix sys_ppu_thread_start error checking, fix rare bug in sys_ppu_thread_create

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* Correct error code to EBUSY.
* lv2_obj::awake was called even when EBSUY should be returned.
* Fix sys_ppu_thread_create for a newly created thread with the same id as ppu_thread::id_base. (can happen if main thread exited before its creation)
This commit is contained in:
Eladash 2020-04-29 08:03:07 +03:00
parent c1dc6838fa
commit dd6825a7bd
3 changed files with 23 additions and 15 deletions
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11
rpcs3/Emu/Cell/PPUThread.cpp
View File

@ -788,14 +788,11 @@ ppu_thread::ppu_thread(const ppu_thread_params& param, std::string_view name, u3
gpr[13] = param.tls_addr;
if (detached >= 0 && id != id_base)
if (detached >= 0)
{
// Initialize thread entry point
cmd_list
({
{ppu_cmd::set_args, 2}, param.arg0, param.arg1,
{ppu_cmd::opd_call, 0}, std::bit_cast<u64>(entry_func),
});
// Initialize thread args
gpr[3] = param.arg0;
gpr[4] = param.arg1;
}
// Trigger the scheduler

2
rpcs3/Emu/Cell/lv2/sys_interrupt.cpp
View File

@ -15,7 +15,7 @@ void lv2_int_serv::exec()
({
{ ppu_cmd::reset_stack, 0 },
{ ppu_cmd::set_args, 2 }, arg1, arg2,
{ ppu_cmd::opd_call, 0 }, std::bit_cast<u64>(thread->entry_func),
{ ppu_cmd::opd_call, 0 }, thread->entry_func,
{ ppu_cmd::sleep, 0 }
});

25
rpcs3/Emu/Cell/lv2/sys_ppu_thread.cpp
View File

@ -441,26 +441,37 @@ error_code sys_ppu_thread_start(ppu_thread& ppu, u32 thread_id)
{
sys_ppu_thread.trace("sys_ppu_thread_start(thread_id=0x%x)", thread_id);
const auto thread = idm::get<named_thread<ppu_thread>>(thread_id, [&](ppu_thread& thread)
const auto thread = idm::get<named_thread<ppu_thread>>(thread_id, [&](ppu_thread& thread) -> CellError
{
if (thread.joiner == ppu_join_status::exited)
{
return false;
return CELL_ESRCH;
}
if (!thread.state.test_and_reset(cpu_flag::stop))
{
// Already started
return CELL_EBUSY;
}
lv2_obj::awake(&thread);
return true;
thread.cmd_list
({
{ppu_cmd::opd_call, 0}, thread.entry_func
});
return {};
});
if (!thread || !thread.ret)
if (!thread)
{
return CELL_ESRCH;
}
if (!thread->state.test_and_reset(cpu_flag::stop))
if (thread.ret)
{
// TODO: what happens there?
return CELL_EPERM;
return thread.ret;
}
else
{