50 lines
591 B
ArmAsm
50 lines
591 B
ArmAsm
#include <amd64/regsasm.h>
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.extern amd64_syscall_dispatch
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.global amd64_syscall_entry
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amd64_syscall_entry:
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cli
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movq %rsp, %gs:0
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movq %gs:8, %rsp
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pushq $0x1b
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pushq %gs:0
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pushq %r11
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pushq $0x23
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pushq %rcx
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pushq $0
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pushq $0
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push_regs
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movw $0x10, %ax
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movw %ax, %ds
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movw %ax, %es
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movw %ax, %ss
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cld
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movq %rsp, %rdi
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movq %cr3, %rax; pushq %rax
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movq %rsp, %rbp
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subq $8, %rsp
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andq $-16, %rsp
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callq amd64_syscall_dispatch
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movq %rbp, %rsp
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popq %rbx; movq %rbx, %cr3
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pop_regs_skip_rax
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addq $56, %rsp
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movq %gs:0, %rsp
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sysretq
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