1/* 2 * Copyright 2019, Data61 3 * Commonwealth Scientific and Industrial Research Organisation (CSIRO) 4 * ABN 41 687 119 230. 5 * 6 * This software may be distributed and modified according to the terms of 7 * the BSD 2-Clause license. Note that NO WARRANTY is provided. 8 * See "LICENSE_BSD2.txt" for details. 9 * 10 * @TAG(DATA61_BSD) 11 */ 12#include <sel4runtime/gen_config.h> 13 14.section .text 15.global _sel4_start 16_sel4_start: 17 18/* Set gp for relaxation. See 19 * https://www.sifive.com/blog/2017/08/28/all-aboard-part-3-linker-relaxation-in-riscv-toolchain/ 20 */ 21.option push 22.option norelax 231:auipc gp, %pcrel_hi(__global_pointer$) 24 addi gp, gp, %pcrel_lo(1b) 25.option pop 26 27 la sp, __stack_top 28 jal __sel4_start_root 29 /* should not return */ 301: 31 j 1b 32 33.section .bss 34__stack_base: 35 .align 16 36 .space CONFIG_SEL4RUNTIME_ROOT_STACK 37__stack_top: 38