banan-os/kernel/arch/x86_64/Thread.S

# uint64_t read_rip()
.global read_rip
read_rip:
	popq %rax
	jmp *%rax

exit_thread_trampoline:
	movq 8(%rsp), %rdi
	ret

# void start_thread(uint64_t arg0, uint64_t arg1, uint64_t arg2, uint64_t arg3, uint64_t rsp, uint64_t rbp, uint64_t rip)
.global start_thread
start_thread:
	movq 8(%rsp), %rcx
	movq %r8, %rsp
	movq %r9, %rbp
	pushq $exit_thread_trampoline
	sti
	jmp *%rcx

# void continue_thread(uint64_t rsp, uint64_t rbp, uint64_t rip)
.global continue_thread
continue_thread:
	movq %rdi, %rsp
	movq %rsi, %rbp
	movq $0, %rax
	jmp *%rdx
Kernel: Improve multithreading support We can now use arbitary BAN::function<void(...)> as the Thread. I also implemented multithreading for i386 since it was not done on the initial multithreading commit. 2023-02-02 23:24:12 +02:00			`# uint64_t read_rip()`
			`.global read_rip`
			`read_rip:`
			`popq %rax`
			`jmp *%rax`

			`exit_thread_trampoline:`
			`movq 8(%rsp), %rdi`
			`ret`

			`# void start_thread(uint64_t arg0, uint64_t arg1, uint64_t arg2, uint64_t arg3, uint64_t rsp, uint64_t rbp, uint64_t rip)`
			`.global start_thread`
			`start_thread:`
			`movq 8(%rsp), %rcx`
			`movq %r8, %rsp`
			`movq %r9, %rbp`
			`pushq $exit_thread_trampoline`
			`sti`
			`jmp *%rcx`

			`# void continue_thread(uint64_t rsp, uint64_t rbp, uint64_t rip)`
			`.global continue_thread`
			`continue_thread:`
			`movq %rdi, %rsp`
			`movq %rsi, %rbp`
			`movq $0, %rax`
			`jmp *%rdx`