59 lines
1.0 KiB
C++
59 lines
1.0 KiB
C++
#include "thread/Thread.h"
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#include <luna/CString.h>
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bool is_in_kernel(Registers* regs)
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{
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return regs->cs == 8;
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}
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void Thread::set_ip(u64 ip)
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{
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regs.rip = ip;
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}
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u64 Thread::ip()
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{
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return regs.rip;
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}
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void Thread::set_sp(u64 sp)
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{
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regs.rsp = sp;
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}
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u64 Thread::sp()
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{
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return regs.rsp;
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}
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void Thread::init_regs_kernel()
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{
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memset(®s, 0, sizeof(Registers));
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regs.cs = 0x08;
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regs.ss = 0x10;
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regs.rflags = 1 << 9; // IF (Interrupt enable flag)
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}
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void Thread::init_regs_user()
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{
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memset(®s, 0, sizeof(Registers));
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regs.cs = 0x18 | 3;
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regs.ss = 0x20 | 3;
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regs.rflags = 1 << 9; // IF (Interrupt enable flag)
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}
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void Thread::set_arguments(u64 arg1, u64 arg2, u64 arg3, u64 arg4)
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{
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regs.rdi = arg1;
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regs.rsi = arg2;
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regs.rdx = arg3;
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regs.rcx = arg4;
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}
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void switch_context(Thread* old_thread, Thread* new_thread, Registers* regs)
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{
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if (!old_thread->is_idle()) memcpy(&old_thread->regs, regs, sizeof(Registers));
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memcpy(regs, &new_thread->regs, sizeof(Registers));
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}
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