/*      $OpenBSD: gadget.S,v 1.2 2024/03/13 11:18:42 kettenis Exp $     */

#include <sys/syscall.h>
#include <machine/asm.h>

#if !defined(_ASM_TYPE_FUNCTION)
#define _ASM_TYPE_FUNCTION @function
#endif

        .section .rodata
        .globl  gadget_getpid
        .type   gadget_getpid,_ASM_TYPE_FUNCTION
gadget_getpid:
#if defined(__amd64__)
        endbr64
        mov     $SYS_getpid, %eax
        syscall
        ret
#elif defined(__aarch64__)
        bti     c
        mov     x8, #SYS_getpid
        svc     0
        dsb     nsh
        isb
        ret
#else
#error "Missing gadget."
#endif

        .space 4096