File: error-inject.c

package info (click to toggle)
linux 5.10.28-1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 1,142,388 kB
  • sloc: ansic: 19,494,753; asm: 263,677; sh: 73,927; makefile: 44,698; perl: 34,644; python: 32,383; cpp: 6,070; yacc: 4,755; lex: 2,742; awk: 1,214; ruby: 25; sed: 5
file content (14 lines) | stat: -rw-r--r-- 365 bytes parent folder | download | duplicates (34) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
 
// SPDX-License-Identifier: GPL-2.0+
#include <asm/ptrace.h>
#include <linux/error-injection.h>
#include <linux/kprobes.h>

void override_function_with_return(struct pt_regs *regs)
{
	/*
	 * Emulate 'br 14'. 'regs' is captured by kprobes on entry to some
	 * kernel function.
	 */
	regs->psw.addr = regs->gprs[14];
}
NOKPROBE_SYMBOL(override_function_with_return);