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Kernel: Remove some more unnecessary Thread members.

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This commit is contained in:
Andreas Kling 2019-04-20 19:29:48 +02:00
parent b2ebf6c798
commit 5562ab3f5a
2 changed files with 6 additions and 13 deletions
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12
Kernel/Thread.cpp
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@ -44,14 +44,12 @@ Thread::Thread(Process& process)
// FIXME: This memory is leaked.
// But uh, there's also no kernel process termination, so I guess it's not technically leaked...
dword stack_bottom = (dword)kmalloc_eternal(default_kernel_stack_size);
m_stack_top0 = (stack_bottom + default_kernel_stack_size) & 0xffffff8;
m_tss.esp = m_stack_top0;
m_tss.esp = (stack_bottom + default_kernel_stack_size) & 0xffffff8;
} else {
// Ring3 processes need a separate stack for Ring0.
m_kernel_stack = kmalloc(default_kernel_stack_size);
m_stack_top0 = ((dword)m_kernel_stack + default_kernel_stack_size) & 0xffffff8;
m_tss.ss0 = 0x10;
m_tss.esp0 = m_stack_top0;
m_tss.esp0 = ((dword)m_kernel_stack + default_kernel_stack_size) & 0xffffff8;
}
// HACK: Ring2 SS in the TSS is the current PID.
@ -433,8 +431,7 @@ void Thread::make_userspace_stack_for_main_thread(Vector<String> arguments, Vect
{
auto* region = m_process.allocate_region(LinearAddress(), default_userspace_stack_size, "stack");
ASSERT(region);
m_stack_top3 = region->laddr().offset(default_userspace_stack_size).get();
m_tss.esp = m_stack_top3;
m_tss.esp = region->laddr().offset(default_userspace_stack_size).get();
char* stack_base = (char*)region->laddr().get();
int argc = arguments.size();
@ -480,8 +477,7 @@ void Thread::make_userspace_stack_for_secondary_thread(void *argument)
{
auto* region = m_process.allocate_region(LinearAddress(), default_userspace_stack_size, String::format("Thread %u Stack", tid()));
ASSERT(region);
m_stack_top3 = region->laddr().offset(default_userspace_stack_size).get();
m_tss.esp = m_stack_top3;
m_tss.esp = region->laddr().offset(default_userspace_stack_size).get();
// NOTE: The stack needs to be 16-byte aligned.
push_value_on_stack((dword)argument);