clarify the purpose of this project
[nyanglibc.git] / misc / ioctl.s
blobb0226702132dea61d5e4687ddf9c8fb168d5523f
1 .text
2 .globl __ioctl
3 .type __ioctl,@function
4 .align 1<<4
5 __ioctl:
7 movl $16, %eax
8 syscall
9 cmpq $-4095, %rax
10 jae 0f
11 ret
12 0: movq __libc_errno@GOTTPOFF(%rip), %rcx
13 neg %eax
14 movl %eax, %fs:(%rcx)
15 or $-1, %rax
16 ret
17 .size __ioctl,.-__ioctl
18 .weak ioctl
19 ioctl = __ioctl