66 lines
1.1 KiB
ArmAsm
66 lines
1.1 KiB
ArmAsm
/*
|
|
The kernel uses the following registers:
|
|
%rdi, %rsi, %rdx, %r8, %r9, %r10
|
|
|
|
The number of the syscall is passed in %rax.
|
|
|
|
A syscall clobbers:
|
|
%rax, %rcx, %r11
|
|
|
|
The returned value is placed in %rax.
|
|
*/
|
|
.text
|
|
|
|
// 1 parameter.
|
|
.globl _D5tanya3sys5linux7syscallQiFNbNillZl
|
|
.type _D5tanya3sys5linux7syscallQiFNbNillZl, @function
|
|
|
|
_D5tanya3sys5linux7syscallQiFNbNillZl:
|
|
movq %rsi, %rax // Syscall number.
|
|
|
|
syscall
|
|
|
|
ret
|
|
|
|
|
|
// 2 parameters.
|
|
.globl _D5tanya3sys5linux7syscallQiFNbNilllZl
|
|
.type _D5tanya3sys5linux7syscallQiFNbNilllZl, @function
|
|
|
|
_D5tanya3sys5linux7syscallQiFNbNilllZl:
|
|
movq %rdx, %rax
|
|
|
|
syscall
|
|
|
|
ret
|
|
|
|
|
|
// 3 parameters.
|
|
.globl _D5tanya3sys5linux7syscallQiFNbNillllZl
|
|
.type _D5tanya3sys5linux7syscallQiFNbNillllZl, @function
|
|
|
|
_D5tanya3sys5linux7syscallQiFNbNillllZl:
|
|
movq %rcx, %rax
|
|
|
|
syscall
|
|
|
|
ret
|
|
|
|
|
|
// 6 parameters.
|
|
.globl _D5tanya3sys5linux7syscallQiFNbNilllllllZl
|
|
.type _D5tanya3sys5linux7syscallQiFNbNilllllllZl, @function
|
|
|
|
_D5tanya3sys5linux7syscallQiFNbNilllllllZl:
|
|
pushq %rbp
|
|
movq %rsp, %rbp
|
|
|
|
movq 16(%rbp), %rax
|
|
|
|
mov %rcx, %r10
|
|
|
|
syscall
|
|
|
|
leave
|
|
ret
|