1/* SPDX-License-Identifier: GPL-2.0 */ 2 3#include <linux/linkage.h> 4 5/* 6 * insn_page is a special 4k aligned dummy function for kprobes. 7 * It will contain all kprobed instructions that are out-of-line executed. 8 * The page must be within the kernel image to guarantee that the 9 * out-of-line instructions are within 2GB distance of their original 10 * location. Using a dummy function ensures that the insn_page is within 11 * the text section of the kernel and mapped read-only/executable from 12 * the beginning on, thus avoiding to split large mappings if the page 13 * would be in the data section instead. 14 */ 15 .section .kprobes.text, "ax" 16 .align 4096 17ENTRY(kprobes_insn_page) 18 .rept 2048 19 .word 0x07fe 20 .endr 21ENDPROC(kprobes_insn_page) 22 .previous 23