| Ilya Leoshkevich | 73d6eb4 | 2020-07-22 23:58:54 +0200 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0+ |
| 2 | #include <asm/ptrace.h> | ||||
| 3 | #include <linux/error-injection.h> | ||||
| 4 | #include <linux/kprobes.h> | ||||
| 5 | |||||
| 6 | void override_function_with_return(struct pt_regs *regs) | ||||
| 7 | { | ||||
| 8 | /* | ||||
| 9 | * Emulate 'br 14'. 'regs' is captured by kprobes on entry to some | ||||
| 10 | * kernel function. | ||||
| 11 | */ | ||||
| 12 | regs->psw.addr = regs->gprs[14]; | ||||
| 13 | } | ||||
| 14 | NOKPROBE_SYMBOL(override_function_with_return); | ||||