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Kernel: Move sys_fork trampolines to kernel/arch/ directory

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Bananymous
2024-03-22 12:48:54 +02:00
parent 26ed689d30
commit 45cea14165
3 changed files with 20 additions and 1 deletions
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18
kernel/arch/i386/Syscall.S Normal file
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@@ -0,0 +1,18 @@
.global sys_fork_trampoline
sys_fork_trampoline:
subl $4, %esp
pushl %ebx
pushl %ebp
call read_rip
testl %eax, %eax
je .done
subl $8, %esp
pushl %eax
pushl %esp
call sys_fork
addl $16, %esp
.done:
popl %ebp
popl %ebx
addl $4, %esp
ret

22
kernel/arch/x86_64/Syscall.S Normal file
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@@ -0,0 +1,22 @@
.global sys_fork_trampoline
sys_fork_trampoline:
pushq %rbx
pushq %rbp
pushq %r12
pushq %r13
pushq %r14
pushq %r15
call read_rip
testq %rax, %rax
je .done
movq %rax, %rsi
movq %rsp, %rdi
call sys_fork
.done:
popq %r15
popq %r14
popq %r13
popq %r12
popq %rbp
popq %rbx
ret