forked from Bananymous/banan-os
40 lines
702 B
ArmAsm
40 lines
702 B
ArmAsm
# uint64_t read_ip()
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.global read_ip
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read_ip:
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popq %rax
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jmp *%rax
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exit_thread_trampoline:
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movq 8(%rsp), %rdi
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ret
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# void start_thread(uint64_t sp, uint64_t ip)
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.global start_thread
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start_thread:
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movq %rdi, %rsp
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popq %rdi
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movq $0, %rbp
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pushq $exit_thread_trampoline
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sti
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jmp *%rsi
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# void continue_thread(uint64_t sp, uint64_t ip)
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.global continue_thread
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continue_thread:
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movq %rdi, %rsp
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movq $0, %rax
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jmp *%rsi
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# void thread_userspace_trampoline(uint64_t sp, uint64_t ip, int argc, char** argv, char** envp)
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.global thread_userspace_trampoline
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thread_userspace_trampoline:
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pushq $0x23
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pushq %rdi
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pushfq
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pushq $0x1B
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pushq %rsi
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movq %rdx, %rdi
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movq %rcx, %rsi
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movq %r8, %rdx
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iretq
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