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Kernel: Reset FPU state on exec()

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This commit is contained in:
Andreas Kling 2020-02-18 13:44:27 +01:00
parent 315538245f
commit 9aa234cc47
3 changed files with 9 additions and 2 deletions
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7
Kernel/Thread.cpp
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@ -94,7 +94,7 @@ Thread::Thread(Process& process)
#endif
set_default_signal_dispositions();
m_fpu_state = (FPUState*)kmalloc_aligned(sizeof(FPUState), 16);
memcpy(m_fpu_state, &s_clean_fpu_state, sizeof(FPUState));
reset_fpu_state();
memset(&m_tss, 0, sizeof(m_tss));
m_tss.iomapbase = sizeof(TSS32);
@ -879,4 +879,9 @@ Thread* Thread::from_tid(int tid)
return found_thread;
}
void Thread::reset_fpu_state()
{
memcpy(m_fpu_state, &s_clean_fpu_state, sizeof(FPUState));
}
}