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