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[kernel] Add a 'log available' signal to block on

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There was previously no good way to block log-display tasks, either the
fb driver or the kernel log task. Now the system object has a signal
(j6_signal_system_has_log) that gets asserted when the log is written
to.
This commit is contained in:
Justin C. Miller
2021-01-18 18:28:15 -08:00
parent 99ef9166ae
commit 847d7ab38d
8 changed files with 111 additions and 28 deletions
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2
src/kernel/scheduler.cpp
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@@ -112,7 +112,7 @@ load_process_image(uintptr_t phys, uintptr_t virt, size_t bytes, TCB *tcb)
j6_init_value *initv = push<j6_init_value>(tcb->rsp3);
initv->type = j6_init_handle_system;
initv->value = static_cast<uint64_t>(proc.add_handle(system::get()));
initv->value = static_cast<uint64_t>(proc.add_handle(&system::get()));
initv = push<j6_init_value>(tcb->rsp3);
initv->type = j6_init_handle_process;