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Kernel/LibC: Implement SA_RESTART

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I have been thinking how to do this for a long time but I finally
figured out a semi-clean way
This commit is contained in:
Bananymous
2025-04-22 02:42:44 +03:00
parent 34e680d792
commit 808c97020a
6 changed files with 16 additions and 7 deletions
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6
kernel/kernel/Thread.cpp
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@@ -435,7 +435,7 @@ namespace Kernel
return interrupt_stack.ip == (uintptr_t)signal_trampoline;
}
void Thread::handle_signal(int signal)
bool Thread::handle_signal(int signal)
{
ASSERT(&Thread::current() == this);
ASSERT(is_userspace());
@@ -463,10 +463,12 @@ namespace Kernel
}
vaddr_t signal_handler;
bool has_sa_restart;
{
SpinLockGuard _(m_process->m_signal_lock);
ASSERT(!(m_process->m_signal_handlers[signal].sa_flags & SA_SIGINFO));
signal_handler = (vaddr_t)m_process->m_signal_handlers[signal].sa_handler;
has_sa_restart = !!(m_process->m_signal_handlers[signal].sa_flags & SA_RESTART);
}
m_signal_pending_mask &= ~(1ull << signal);
@@ -534,6 +536,8 @@ namespace Kernel
ASSERT_NOT_REACHED();
}
}
return has_sa_restart;
}
bool Thread::add_signal(int signal)