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[kernel] Remove thread_data pointer from TCB

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The TCB is always stored at a constant offset within the thread object.
So instead of carrying an extra pointer, just implement thread::from_tcb
to get the thread.
This commit is contained in:
Justin C. Miller
2020-07-19 17:01:15 -07:00
parent ef5c333030
commit c3abe035c8
5 changed files with 20 additions and 12 deletions
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8
src/kernel/syscalls/process.cpp
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@@ -11,7 +11,7 @@ process_exit(int64_t status)
{
auto &s = scheduler::get();
TCB *tcb = s.current();
thread *th = tcb->thread_data;
thread *th = thread::from_tcb(tcb);
log::debug(logs::syscall, "Thread %llx exiting with code %d", th->koid(), status);
th->exit(status);
@@ -67,7 +67,7 @@ process_log(const char *message)
auto &s = scheduler::get();
TCB *tcb = s.current();
thread *th = tcb->thread_data;
thread *th = thread::from_tcb(tcb);
log::info(logs::syscall, "Message[%llx]: %s", th->koid(), message);
return j6_status_ok;
}
@@ -80,7 +80,7 @@ process_pause()
{
auto &s = scheduler::get();
TCB *tcb = s.current();
thread *th = tcb->thread_data;
thread *th = thread::from_tcb(tcb);
th->wait_on_signals(th, -1ull);
s.schedule();
return j6_status_ok;
@@ -91,7 +91,7 @@ process_sleep(uint64_t til)
{
auto &s = scheduler::get();
TCB *tcb = s.current();
thread *th = tcb->thread_data;
thread *th = thread::from_tcb(tcb);
log::debug(logs::syscall, "Thread %llx sleeping until %llu", th->koid(), til);
th->wait_on_time(til);