| /* SPDX-License-Identifier: GPL-2.0+ */ |
| /* |
| * (C) Copyright 2007 Semihalf |
| * |
| * Written by: Rafal Jaworowski <raj@semihalf.com> |
| */ |
| |
| #if defined(CONFIG_PPC) |
| |
| .text |
| .globl _start |
| _start: |
| lis %r11, search_hint@ha |
| addi %r11, %r11, search_hint@l |
| stw %r1, 0(%r11) |
| b main |
| |
| |
| .globl syscall |
| syscall: |
| lis %r11, syscall_ptr@ha |
| addi %r11, %r11, syscall_ptr@l |
| lwz %r11, 0(%r11) |
| mtctr %r11 |
| bctr |
| |
| #elif defined(CONFIG_ARM) |
| |
| .text |
| .globl _start |
| _start: |
| ldr ip, =search_hint |
| str sp, [ip] |
| b main |
| |
| |
| .globl syscall |
| syscall: |
| ldr ip, =syscall_ptr |
| ldr pc, [ip] |
| |
| #elif defined(CONFIG_MIPS) |
| #include <asm/asm.h> |
| .text |
| .globl __start |
| .ent __start |
| __start: |
| PTR_S $sp, search_hint |
| b main |
| .end __start |
| |
| .globl syscall |
| .ent syscall |
| syscall: |
| PTR_S $ra, return_addr |
| PTR_L $t9, syscall_ptr |
| jalr $t9 |
| nop |
| PTR_L $ra, return_addr |
| jr $ra |
| nop |
| .end syscall |
| |
| return_addr: |
| .align 8 |
| .long 0 |
| #else |
| #error No support for this arch! |
| #endif |
| |
| .globl syscall_ptr |
| syscall_ptr: |
| .align 8 |
| .long 0 |
| |
| .globl search_hint |
| search_hint: |
| .long 0 |
