1*4882a593Smuzhiyun/* 2*4882a593Smuzhiyun * (C) Copyright 2007 Semihalf 3*4882a593Smuzhiyun * 4*4882a593Smuzhiyun * Written by: Rafal Jaworowski <raj@semihalf.com> 5*4882a593Smuzhiyun * 6*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+ 7*4882a593Smuzhiyun */ 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun#if defined(CONFIG_PPC) 10*4882a593Smuzhiyun 11*4882a593Smuzhiyun .text 12*4882a593Smuzhiyun .globl _start 13*4882a593Smuzhiyun_start: 14*4882a593Smuzhiyun lis %r11, search_hint@ha 15*4882a593Smuzhiyun addi %r11, %r11, search_hint@l 16*4882a593Smuzhiyun stw %r1, 0(%r11) 17*4882a593Smuzhiyun b main 18*4882a593Smuzhiyun 19*4882a593Smuzhiyun 20*4882a593Smuzhiyun .globl syscall 21*4882a593Smuzhiyunsyscall: 22*4882a593Smuzhiyun lis %r11, syscall_ptr@ha 23*4882a593Smuzhiyun addi %r11, %r11, syscall_ptr@l 24*4882a593Smuzhiyun lwz %r11, 0(%r11) 25*4882a593Smuzhiyun mtctr %r11 26*4882a593Smuzhiyun bctr 27*4882a593Smuzhiyun 28*4882a593Smuzhiyun#elif defined(CONFIG_ARM) 29*4882a593Smuzhiyun 30*4882a593Smuzhiyun .text 31*4882a593Smuzhiyun .globl _start 32*4882a593Smuzhiyun_start: 33*4882a593Smuzhiyun ldr ip, =search_hint 34*4882a593Smuzhiyun str sp, [ip] 35*4882a593Smuzhiyun b main 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun 38*4882a593Smuzhiyun .globl syscall 39*4882a593Smuzhiyunsyscall: 40*4882a593Smuzhiyun ldr ip, =syscall_ptr 41*4882a593Smuzhiyun ldr pc, [ip] 42*4882a593Smuzhiyun 43*4882a593Smuzhiyun#elif defined(CONFIG_MIPS) 44*4882a593Smuzhiyun#include <asm/asm.h> 45*4882a593Smuzhiyun .text 46*4882a593Smuzhiyun .globl __start 47*4882a593Smuzhiyun .ent __start 48*4882a593Smuzhiyun__start: 49*4882a593Smuzhiyun PTR_S $sp, search_hint 50*4882a593Smuzhiyun b main 51*4882a593Smuzhiyun .end __start 52*4882a593Smuzhiyun 53*4882a593Smuzhiyun .globl syscall 54*4882a593Smuzhiyun .ent syscall 55*4882a593Smuzhiyunsyscall: 56*4882a593Smuzhiyun PTR_S $ra, return_addr 57*4882a593Smuzhiyun PTR_L $t9, syscall_ptr 58*4882a593Smuzhiyun jalr $t9 59*4882a593Smuzhiyun nop 60*4882a593Smuzhiyun PTR_L $ra, return_addr 61*4882a593Smuzhiyun jr $ra 62*4882a593Smuzhiyun nop 63*4882a593Smuzhiyun .end syscall 64*4882a593Smuzhiyun 65*4882a593Smuzhiyunreturn_addr: 66*4882a593Smuzhiyun .align 8 67*4882a593Smuzhiyun .long 0 68*4882a593Smuzhiyun#else 69*4882a593Smuzhiyun#error No support for this arch! 70*4882a593Smuzhiyun#endif 71*4882a593Smuzhiyun 72*4882a593Smuzhiyun .globl syscall_ptr 73*4882a593Smuzhiyunsyscall_ptr: 74*4882a593Smuzhiyun .align 8 75*4882a593Smuzhiyun .long 0 76*4882a593Smuzhiyun 77*4882a593Smuzhiyun .globl search_hint 78*4882a593Smuzhiyunsearch_hint: 79*4882a593Smuzhiyun .long 0 80