mirror of
https://github.com/Fennix-Project/Kernel.git
synced 2025-05-28 15:34:33 +00:00
55 lines
890 B
NASM
55 lines
890 B
NASM
[BITS 64]
|
|
ALIGN 4096
|
|
extern SystemCallsHandler
|
|
global SystemCallHandlerStub
|
|
SystemCallHandlerStub:
|
|
swapgs
|
|
mov [gs:0x8], rsp ; CPUData->TempStack
|
|
mov rsp, [gs:0x0] ; CPUData->SystemCallStack
|
|
|
|
push qword 0x23 ; user data segment
|
|
push qword [gs:0x8] ; saved stack
|
|
push r11 ; saved rflags
|
|
push qword 0x1b ; user code segment
|
|
push rcx ; Current RIP
|
|
|
|
push rax
|
|
push rbx
|
|
push rcx
|
|
push rdx
|
|
push rsi
|
|
push rdi
|
|
push rbp
|
|
push r8
|
|
push r9
|
|
push r10
|
|
push r11
|
|
push r12
|
|
push r13
|
|
push r14
|
|
push r15
|
|
|
|
mov rdi, rsp
|
|
mov rbp, 0
|
|
call SystemCallsHandler
|
|
|
|
pop r15
|
|
pop r14
|
|
pop r13
|
|
pop r12
|
|
pop r11
|
|
pop r10
|
|
pop r9
|
|
pop r8
|
|
pop rbp
|
|
pop rdi
|
|
pop rsi
|
|
pop rdx
|
|
pop rcx
|
|
pop rbx
|
|
|
|
mov rsp, [gs:0x8]
|
|
swapgs
|
|
sti
|
|
o64 sysret
|